KR100968995B1 - Sealing bag with chuck - Google Patents

Abstract

It is a sealing bag with a chuck which can reliably improve the easy opening property of a sealing bag without the chuck or the entire bag being enlarged, and without melting or flattening the protrusions at the time of umbilization. The present sealing bag is a bag main body 1 having an opening 1a on one side, a pair of tapes 11a and 11b and a pair which are heat-sealed near the opening of the bag main body 1 to face each other along the opening 1a. A chuck 10 having a pair of male and female clamping devices 12a and 12b formed on opposite surfaces of the tape 11 of the tape 11 to be detachably coupled along the opening 1a to seal the bag body 1. Projections 20a and 20b that form a pair of convex protrusions formed on the edge portions of the bag main body opening sides of the pair of tapes 11a and 11b and protrude integrally on the inner surface side and the outer surface side of the bag main body 1a. At the same time, the protrusions 20a and 20b are thermally fused to the inner surface of the bag body by the pair of tapes 11, thereby positioning the protrusions 20a and 20b on the inner side of the opening body of the bag body 1. It is the structure which does not heat-bond to the inner surface of the bag main body 1. As shown in FIG.

Description

Sealing bag with chuck {SEALING BAG WITH CHUCK}             

The present invention relates to a sealing bag with a chuck provided with a clamping type chuck (fastener) that opens and closes and seals the bag in the vicinity of an opening of a bag body made of a synthetic resin film or the like. will be.

Particularly, the projections protruding integrally on both the inner and outer surfaces of the bag body are provided at the tape end edges of the chuck, and the projections are arranged on the inside of the bag body without exposing them from the opening of the bag body without fusion bonding to the bag side. Thus, the easy-to-unseal property of the bag can be achieved without increasing the size of the chuck or the entire bag and without causing melting and flattening of the projections during bag-making. The present invention relates to a sealing bag with a chuck that can be reliably improved and is suitable for a small sealing bag used for storing medicines, foods, sundries, and the like.

Generally, the sealing bag with a chuck which bonded the male and female clamping resin chuck to the opening part of the bag main body formed from the synthetic resin film etc. is known. This type of sealing bag with a chuck can be manufactured in large quantities at low cost, and is light in weight, excellent in flexibility and water resistance, and can open and close the clamping type chuck freely. Since it can be easily sealed, it is widely used as a container and a bag which accommodates a medicine, food, sundries, etc., for example. The chuck provided in the resin-sealed bag is formed with a pair of male and female clamping devices detachably formed on the surface of the resin-made tape, and the tape is thermally fused to the vicinity of the opening of the bag body. By opening and closing the male and female portions, the opening of the bag is opened and closed, and the inside of the bag is sealed while the clamping device is engaged.

Here, when opening and closing the bag, when opening and closing the bag, the opening and closing of the chuck is gripped with a finger while aligning a part of the female part and the male part that are opposed to each other. By moving an existing finger along the opening, the male and female portions can be sequentially engaged to close and align the entire chuck. And when opening the chuck to which the female and female parts are coupled in this way, by holding the opening protrusion of the bag main body with a finger and pulling it to both sides, a part of the female part and the male part are released, and the chuck is sequentially separated from the part from which the coupling is separated. The bag can be opened by separating the entire chuck.

By the way, since the bag main body is formed from a thin film such as polypropylene, the opening edge of the bag held by the finger when the chuck is opened is slippery, especially when there is moisture or a fingertip at the fingertips. If the weak person wants to open, the finger may slip and may not open the chuck well.                 

In general, in this type of sealing bag, the pair of male and female clamping devices constituting the chuck are coupled at a constant strength so that the inside of the bag can be reliably sealed. For this reason, in the conventional sealing bag which a gripping part of a bag is easy to slip, opening operation of a bag becomes difficult, especially the bag for medicine used by infants, an elderly person, etc., the bag for foods and miscellaneous goods which housewives use at home, etc. There existed a problem in terms of ease of use and ease of opening.

Therefore, in order to prevent slipping of the finger at the time of opening in the resin-sealed bag and to reduce the difficulty of opening the chuck as described above, a finger slip prevention structure is provided so that a finger or the like is provided near the bag opening. A sealing bag of attachment has been proposed.

11 and 12 are cross-sectional views showing a conventional sealing bag having a finger slip prevention structure that has been proposed so far, FIG. 11 is a side cross-sectional view of the entire sealing bag, and FIG. 12 is a cross-sectional side view of the main part near the bag opening.

The sealing bag shown in Fig. 11 is proposed in Japanese Utility Model Publication No. 1991-19313, which is a chuck 111 (a rail in the above publication formed a pair of male and female clamping devices 112, 112a and 112b). Mold fastener ") is attached to the outside of the opening edge of the bag body 101 made of resin, and the outer edge of the chuck 111 is extended and bent outward as the grip portions 113a and 113b, Expansion portions 114a and 114b formed in a cross-sectional triangle shape serving as finger slip prevention means are formed at the end edges of the grip portions 113a and 113b. According to this sealing bag, the finger is hung on the extended portions 114a and 114b provided at the outermost end of the chuck 111 so that the chuck 111 can be opened without slipping a finger at the time of opening the bag. It became.

In addition, the sealing bag shown in FIG. 12 is proposed by Japanese Utility Model Laid-Open No. 1993-76309, and it is continuous to the outside of the opening edge of the bag main body 201 similarly to the sealing white case shown in FIG. And a chuck 211 ("rail-type fastener" in the above publication) formed with a pair of male and female clamping devices 212 (212a and 212b), and the outer edges of the chuck 211 are gripped portions 213a and 213b. At the same time, a plurality of projections 214, 214 are provided on the surfaces of the gripping portions 213a, 213b, which serve as finger slip prevention means. According to this sealing bag, a plurality of projections 214, 214 ... formed on the edge surface of the chuck 211 are formed at predetermined intervals, and a thick portion of the finger between the plurality of projections 214, 214... This makes it possible to fit, thereby making it possible to prevent slipping of the finger when the chuck is opened.

However, in these conventionally proposed sealed bags with a finger slip prevention structure, as shown in Figs. 11 and 12, both chucks are continuously fused outward from the opening side edges of the bag main body, and further, Since it is a structure which extends outward as a holding part conveniently, there exists a problem that the whole bag including a chuck becomes large. The increase in size of the sealing bag by such a chuck is not a problem when the bag itself is enlarged in order to store large contents such as bedding or clothing, but it is not a problem. In the sealed bag the effect was very large.                 

Moreover, in the structure in which the chuck is continuous to the outside of the bag opening in this manner, since the chuck itself is an opening and there is no covering for the circumference of the chuck, the contents overflow when the chuck is opened, or foreign matters in the bag. It is easy to enter, especially in homes containing small objects, fine objects, liquids, etc., and small sealed whites used for medical purposes.

Moreover, the problem that the seal | sticker (top seal) of the bag opening part was not able to be performed also in the sealing bag in which the chuck is formed in the opening side shortest part of the bag in this way also arises. In this type of sealing bag, for example, in the case of a white person used for distribution, it is necessary to completely seal the bag and seal all four sides of the bag including the opening portion on the chuck side. By the way, in the sealing bag in which the chuck is arrange | positioned on the outer side of the opening part of a bag, and the gripping part for slip prevention is formed, the bag opening side could not be sealed and it was not able to respond especially to the sealing bag for distribution.

In addition, in the anti-slip structure having protrusions (extensions) at the shortest end of the chuck, as shown in Fig. 11, since there is no continuous portion from the extension, the force of the finger concentrates only on the extension. As also indicated in Japanese Utility Model Laid-Open No. 1993-76309, there is a problem that the extension part is strongly nailed to the fingertip, and pain or numbness occurs at the fingertip.

On the other hand, in a structure in which a plurality of protrusions are formed separately on both sides of the gripping portion, as in the sealing bag shown in FIG. 12, the force of the finger is distributed to the plurality of protrusions formed at different positions, so that no force is applied to the finger. There was a problem.                 

Here, as a means of avoiding the problem of the conventional sealing bag which continuously fuses the chuck to the outside of the bag body as described above, the entire chuck is miniaturized, placed and fused to the inner surface of the bag body, and protruded to the inner surface side of the bag. It is contemplated to protrude the anti-slip means.

However, simply placing the chuck on the inner surface of the bag main body to form protrusions or the like can protrude the protrusions only on the inner surface side of the bag, and is not necessarily sufficient as a means for preventing finger slip. In addition, when the chuck is fused to the bag main body, projections or the like disposed on the inner surface of the bag may be melted and flattened together with the chuck so that the chuck does not function as a finger slip prevention means. In addition, in order to prevent the melting and flattening of the protrusions, it is also possible to consider forming the protrusions in advance so as to have a constant length even if they are melted, for example. At the same time, it is easy to fall, making it difficult to manufacture, and protruding protrusions inside the bag make it difficult to put a finger into the bag opening, thereby deteriorating the opening and closing property of the bag.

The present invention has been proposed to solve the problems of the prior art as described above, and at the tape end edge of the chuck, a protrusion is integrally protruded on both the inner side and the outer side of the bag body, and the protrusion is provided. By arranging the inner side of the bag body not exposed to the bag side without being fused to the bag side, the chuck and the bag as a whole are not enlarged, and the bag is easily opened without melting or flattening during umbilization. It is an object of the present invention to provide a sealing bag with a chuck suitable for a small sealing bag that can be improved and particularly used for storing medicines, foods, sundries, and the like.

Summary of the Invention

In order to achieve the above object, the sealing bag with the chuck according to the present invention is a bag main body which is opened on one side, a pair of tapes which are adhered to the vicinity of the opening of the bag main body and face the opening of the bag main body, and this pair A sealing bag with a chuck having a chuck having a pair of male and female clamping devices formed on opposite sides of a tape of the tape and detachably coupled along the opening of the bag body to sealably open and close the bag body. A convex protrusion formed on the edge portion of the bag body opening side end of each tape, and having protrusions integrally protruding from the inner surface side and the outer surface side of the bag body, wherein the protrusions provide the pair of tapes with the inner surface of the bag body. It adheres to the said inside of the opening, and is comprised in the inside of the opening edge part of the said bag main body.

According to the sealing bag with a chuck of the present invention having such a configuration, a protrusion is provided as a means for preventing slipping of the finger at the time of opening and closing the bag according to an end edge of the chuck that opens and closes the bag body. It is arranged inside the opening. In this way, by placing the chuck and the protrusion inside the bag main body, the chuck and the slip prevention structure do not protrude to the outside of the bag as in the conventional sealed bag, and the chuck and the entire bag can be miniaturized.

In addition, since the whole chuck including the protrusion is housed in the bag main body, the opening protrusion of the bag main body can be further extended to the outside of the chuck, so that the entire opening of the chuck can be covered with the bag main body, In the case of opening and closing the sealing bag, the contents may overflow or foreign substances may not enter.

And the protrusion part of this invention which becomes a finger slip prevention means of a sealing bag is integrally protruded substantially uniformly integrally in the inner surface side and the outer surface side direction of the bag main body, for example, in the state in which the chuck adhered to the inner surface of the bag main body. It consists of convex protrusions, such as circular shape, and is made so that this convex protrusion may be located inside a bag without exposing from a bag main body. With such a configuration, since the protrusions integrally protrude to the inner surface side and the outer surface side of the bag, in the case of opening and closing the bag, the protrusions can be reliably gripped at two locations on the inner and outer surfaces of the bag with two fingers. In addition, since the projection is located inside the bag body, the opening projection of the bag extends further to the outer side (the palm side of the gripping finger) held by the finger, and this extended back edge can also be held by the finger together with the projection. Can be.

Therefore, in the sealing bag of the present invention, by holding the projections projecting to the inner and outer surfaces of the bag at one position, the projections can be held without reliance of the force, and the back edges extending from the projections are also held together, so that only the projections are forced. The entire opening edge of the bag can be maintained without this concentration. As a result, in the present invention, it is possible to open the sealing bag easily, smoothly and reliably without any slipping of the fingers and no pain or numbness at the fingertips as in the conventional sealing bag. Moreover, the projections which can be held simultaneously at the same location from inside and outside of the bag can reduce the width of each projection itself to the inner surface side or the outer surface side of the bag, as compared with the projection of a conventional sealed bag that projects separately to the inner surface side or the outer surface side of the bag. When the bag is umbilized, the projections fall, etc., and the manufacturing becomes difficult, or the projections protrude on the inner surface of the bag, making it difficult for the fingers to enter the openings.

In the sealing bag of the present invention, when the pair of tapes are attached to the inner surface of the bag body by heat fusion, the protrusions provided on the pair of tapes are not thermally fused to the inner surface of the bag body. do. With such a configuration, when the chuck having protrusions at the edges is thermally fused to the bag main body, only the remaining portions except the protrusions can be fused to the bag side, and the protrusions can be prevented from being fused to the bag side.

In general, the chuck provided in the sealing bag made of synthetic resin is thermally fused to be integrally adhered to the bag main body. However, when the entire chuck having the protrusion is thermally fused as it is, the protrusion is also melted by heat and flattened. There is a fear of not functioning as a slip prevention means. In the present invention, only the remaining portion except the protrusion of the chuck is heat-sealed to the bag side, and the protrusion is prevented from melting and flattening by preventing the protrusion from melting and flattening. It can be effectively operated as.

Moreover, in the sealing bag of this invention, it can be set as the structure arrange | positioned at the same position with respect to the depth direction of the said bag main body, and can also be set as the structure arrange | positioned at another position. By configuring the projections arranged to face the inner surface of the bag main body so as to be disposed at different positions in the depth direction of the bag, the opposing projections do not interfere with each other in a state where the chucks are engaged, that is, the sealing bags are closed and mated. It is. As described above, in the present invention where the interference between the projections does not occur, the contour of each projection can be set to an optimal size within the range of the distance between the opposing tape opposing surfaces at the time of chuck engagement, and the projections are caught by the fingers. It can be formed easily in the size and shape which is easy to insert a finger between them, and can further improve the easy opening property of a sealing bag.

And when the protrusion part arrange | positions in the same position of the depth direction of a bag main body, the magnitude | size of the protrusion part which concerns on this invention is the largest width | variety of the inner surface side and the outer surface side protrusion direction of the said bag main body 0.3 mm or more and the distance between the tape opposing surfaces. It is comprised so that it may become. By setting it as such a structure, the protrusion which opposes at the time of engagement of a chuck can be set to the maximum in the range which does not interfere mutually between tape opposing surfaces. In particular, when the maximum width in the inner surface side and the outer surface side protruding directions of the bag main body is configured to be 0.5 mm or more and 1/2 or less of the distance between the tape opposing surfaces, the gripping becomes easier, and the gap between the female and male protrusions is increased. It is preferable because it can be easy to install and put a finger.

In small sealed bags used for medicines and foods, for example, when the tape thickness is about 0.15 mm to 0.16 mm, the distance between the tape opposing surfaces facing each other at the time of chucking is generally about 1.5 mm. If the projections projecting on and opposing the tape opposing surface interfere with each other between the tape opposing surfaces, it becomes difficult to insert a finger between the projections at the time of opening the bag, thereby impairing the easy opening property of the bag. On the other hand, when the projections are made small in order to increase the insertability of the fingers between the projections, for example, if the projection width of the projections is smaller than about 0.3 mm, the projections are too small and the fingering worsens, which functions as a finger slip prevention means. You will not. Therefore, in the present invention, for example, a tape having a tape thickness of about 0.15 to 0.16 mm, the maximum width of projecting the size of the protrusion to the inner and outer surface side of the bag body is 0.3 mm or more, and the maximum distance between the tape opposing surfaces. Hereafter, preferably, the maximum width is set to be 0.5 mm or more and equal to or less than 1/2 (about 0.7 mm) of the distance between the tape opposing surfaces, so that even when the protrusions are disposed opposite to the same position on the inner surface of the bag main body, While ensuring the fastening performance, the total width of the protrusions projecting between the tape opposing faces does not exceed the distance between the tape opposing faces (about 1.5 mm) so that the insertability of the finger is not impaired. Thereby, in this invention, both the locking performance of a finger and reverse insertion property are ensured in a favorable state, and the sealing bag excellent in easy opening property can be provided.

On the other hand, when the protrusions are arranged at different positions in the depth direction of the bag body, the size of the protrusions may be 0.3 mm or more and 2.0 mm or less, preferably the maximum width of the inner and outer surface side protruding directions of the bag body. It is comprised so that it may become 0.5 mm or more. In this case, it is particularly preferable that the maximum width in the inner surface side and the outer surface side protruding directions of the bag main body be 0.3 mm or more and less than or equal to the distance between the tape opposing surfaces, and preferably the maximum width be 0.5 mm or more. With such a configuration, in the case where the projections are arranged to face each other at different positions during chuck engagement, the projections can be made larger in the maximum range of the distance between the tape facing surfaces.

As described above, in the small sealing bag, when the tape thickness is about 0.15 to 0.16 mm, the distance between the tape opposing surfaces during chuck engagement is about 1.5 mm. On the other hand, when the protrusion width is smaller than 0.3 mm, the locking property of the finger deteriorates, and the protrusion does not function as a finger slip prevention means. Therefore, in the present invention, in the case where the inner side of the bag body faces the projections at different positions, for example, a tape having a tape thickness of about 0.15 to 0.16 mm, the entire width of the projection to the inner side of the bag body and the outer surface side is 0.3. It is formed so as to be at most 2.0 mm or less, preferably at most 0.5 mm or less so as to have a distance between the tape opposing surfaces (about 1.5 mm) or less. As a result, each of the tape protrusions is formed to be as large as possible within the range of the distance between the tape opposing surfaces without interfering with each other, further improving the anti-slip property of the finger, and further improving the easy opening of the sealing bag. It becomes possible.

The protrusions may be configured to form convex protrusions of circular cross section, and may also be configured to constitute convex protrusions of angular cross section. Thus, as long as the protrusion part which concerns on this invention is the convex protrusion which can protrude integrally in both the inner surface side and the outer surface side of a bag main body, the cross-sectional shape is not specifically limited, For example, let it be a convex protrusion of circular cross section, for example. Moreover, it can be set as convex protrusion of angular cross section, such as square shape and a rhombus. That is, the protrusion according to the present invention can selectively set the one having the optimal cross-sectional shape to the sealing bag to which the present invention is applied, depending on the size of the sealing bag or the chuck, the coupling force of the chuck, and the like. It becomes possible to realize a sealing bag with a chuck excellent in expandability.

1 is a side sectional view of an entire bag, schematically showing a sealing bag with a chuck according to a first embodiment of the present invention;

2 is a side cross-sectional view of the chuck portion schematically showing the sealing bag with a chuck according to the first embodiment of the present invention, Figure 2a is a chuck spaced apart state, Figure 2b is a chuck coupled state,

3 shows a sealing bag with a chuck according to a first embodiment of the present invention, FIG. 3A is a front view of the entire bag, FIG. 3B is an enlarged view of a portion shown by the dashed-dotted line of FIG. 3A,

4 is a side cross-sectional view of the chuck portion for comparing the size of the projections in the first embodiment of the present invention and the conventional sealing bag, and FIG. 4A is the first embodiment of the present invention, and FIG. 4B is a conventional sealing bag. Drawing,

5 is a view showing a state where the opening side of the sealing bag with a chuck according to the first embodiment of the present invention is top-sealed, FIG. 5A is a side sectional view, FIG. 5B is an enlarged view of a bag front part,

6 is a perspective view seen from the top of the bag, showing the opening operation of the sealing bag with a chuck according to the first embodiment of the present invention;

7 is an explanatory diagram schematically showing a bag cross section showing an opening operation of a sealing bag with a chuck according to the first embodiment of the present invention;

Fig. 8 is a side cross-sectional view of a chuck portion schematically showing an example of a change of the sealing bag with a chuck according to the first embodiment of the present invention, and Fig. 8A is a case where the protrusion is a square in cross section, and Fig. 8B is the same as a rhombus shape. Case drawings,

FIG. 9 is a side sectional view of the chuck portion schematically showing an example of a change of the sealing bag with a chuck according to the first embodiment of the present invention, wherein a plurality of protrusions are formed at the edges of the respective tapes; FIG.

10 is a side cross-sectional view of the entire bag, schematically showing a sealing bag with a chuck according to a second embodiment of the present invention;

11 is a side cross-sectional view of the entire sealing bag showing a sealing bag with a finger slip prevention structure near a conventional bag opening;

Fig. 12 is a sectional side view of the main part of the vicinity of the bag opening, showing another sealing bag with a finger slip prevention structure near the bag opening in the related art.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of the sealing bag with a chuck which concerns on this invention is described, referring drawings.

[First Embodiment]

First, with reference to FIGS. 1-9, 1st Embodiment of the sealing bag with a chuck which concerns on this invention is described.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side cross-sectional view of the whole bag which shows typically the sealing bag with a chuck which concerns on 1st Embodiment of this invention. Fig. 2 is a side cross-sectional view of the chuck portion schematically showing the sealing bag with the chuck according to the present embodiment, in which Fig. 2A is a chuck spaced apart state and Fig. 2B is a state in which the chuck is coupled. 3 shows the sealing bag with a chuck which concerns on this embodiment similarly, FIG. 3A is a front view of the whole bag, FIG. 3B is an enlarged view of the part shown by the dashed-dotted line of FIG. 3A. 4 is a side cross-sectional view of the chuck portion for comparing the size of the projection in the present embodiment and the conventional sealing bag, and FIG. 4A shows the first embodiment of the present invention, and FIG. 4B shows a conventional sealing bag. have.

As shown in these figures, the sealing bag with a chuck according to the present embodiment includes a bag main body 1 formed in a bag shape having an opening 1a opened on one side, and an opening 1a of the bag main body 1. It is a sealing bag having a male and female clamping type chuck 10 adhering to the vicinity of.

And a pair of protrusions which protrude to the inner and outer sides of the bag to the edges of the pair of tapes 11, which are substrates of the chuck 10, which are adhered to the inner surface of the bag main body 1, are means for preventing slipping of the fingers at the time of opening and closing the bag. (20) (20a, 20b) are provided.

The bag main body 1 is a resin bag formed in the bag shape opened to one side. The bag main body 1 usually has two resin films (female side film 2 and a male side film 3) formed in a flat rectangular shape or the like, or one resin film is bent and overlapped. As shown in FIG. 3, three sides (or two sides) except the one side used as the opening part 1a are joined by means, such as heat welding (refer to the adhesion part 5 shown in FIG. 3). It is made to be umbilical in bag shape. Here, the resin film constituting the bag main body 1 is generally a film obtained by laminating a biaxially stretched polypropylene film and a cast polypropylene film, and is cut into various sizes according to the contents to be stored, It is supposed to be.

The chuck 10 is an opening / closing means for sealing the one side opening portion 1a of the bag main body 1 so as to be openable and close, and as shown in FIG. 1, a pair of pairs disposed near the opening 1a of the bag main body 1. Tapes 11 (11a, 11b) and a pair of male and female clamping devices 12 (12a, 12b) formed on the surface of the tape 11 are provided.

The pair of tapes 11 are band-shaped members (see FIG. 3) which are adhered to the inner surface of the bag main body 1 along the opening 1a, as shown in FIG. 1. It consists of the female side tape 11a and the male side tape 11b used as the base material of the clamping apparatus 12a, 12b. The pair of tapes 11a and 11b are usually made of synthetic resin such as polypropylene, and adhered to the inner surface of the bag main body 1 by heat fusion.

In the present embodiment, the pair of tapes 11a and 11b are adhered to the position entered into the bag inside the opening 1a on the inner surface of the bag main body 1 as shown in FIG. As described above, the projection 20 formed along the end edge of the tape 11 is not exposed at the opening 1a of the bag main body 1.

The pair of clamping devices 12 are a pair of male and female coupling means formed one on each surface of a pair of opposing pairs of tapes 11a and 11b, and as shown in FIG. 1, the female side formed on the female side tape 11a. It consists of the male side coupling part 12b formed in the coupling part 12a and the male side tape 11b, and both coupling parts 12a and 12b are located in the corresponding same position on the inner surface side of the bag main body 1. It is intended to face and place.

As shown in FIG. 2, the female coupling part 12a and the male coupling part 12b are detachably coupled to each other so that the opening 1a of the bag main body 1 is sealed to be opened and closed. It becomes.

The pair of clamping devices 12 are usually formed integrally with the tape 11 serving as the substrate by a method such as extrusion molding. Here, the pair of clamping devices 12 may have any configuration as long as it has a clamping structure (chuck structure) capable of sealing the bag main body 1 so as to be openable and closed. For example, in the present embodiment, shown in FIG. As shown, the cross-section having a slit on one side is almost C-shaped female side engaging portion 12a, and the cross section detachably engaging into female-side engaging portion 12a via this slit is an arrowhead-type male side engaging portion 12b. It consists of).

In addition, although the pair of clamping devices 12 are provided in the surface of the tape 11 in this embodiment, one set (one strand) is provided, What is necessary is just to provide the clamping device 12 at least one set, for example, a clamping device ( A plurality of clamping devices 12 may be provided, such as a double chuck structure in which 12) is provided in duplicate.

In the case of the chuck structure having a plurality of clamping devices 12, the airtightness of the bag main body 1 can be more reliably maintained, and therefore, the chuck structure of the sealed bag that needs to maintain the inside of the bag with a higher density, such as a sealed bag for storing liquids. Suitable as.

And the protrusion part 20 (20a, 20b) which becomes a finger slip prevention means is formed in the edge part of each pair of tape 11 of the chuck 10 which consists of the above structures, respectively. With reference to FIGS. 1-4, the protrusion part 20 which concerns on this embodiment is demonstrated in detail.

As shown in these figures, the projection part 20 of this embodiment is a pair of convex protrusion members formed in the edge part of the opening part 1a side edge part of the bag main body 1 of the pair of tapes 11, respectively. Specifically, the protrusion part 20 consists of the female side protrusion part 20a formed in the female side tape 11a, and the male side protrusion part 20b formed in the male side tape 11b, and has both projection parts 20a and 20b. ) Are disposed along the openings 1a to face the same position in the depth direction (up and down direction in the drawing) of the bag main body 1. The protrusions 20a and 20b are integrally protruded from the inner surface side and the outer surface side of the films 2 and 3 constituting the bag main body 1, respectively. As shown, it is formed with convex protrusions of circular cross section.

Here, as shown in Fig. 4, this cross-sectional circular protrusion 20 is formed with substantially equally protruding widths (W ₁ and W ₂ shown in Fig. 4A) toward the inner surface side and the outer surface side of the bag body 1. The entire width (W shown in Fig. 4A) of the protruding direction on the inner and outer surface sides of the bag is about 0.3 mm or more, which is less than or equal to the distance between the tape opposing surfaces, preferably 0.5 mm or more, which is 1 / of the distance between the tape opposing surfaces. It is comprised so that it may become 2 or less (about 0.7 mm or less).

In general, in a small sealing bag used for medicines or foods, when the tapes 11a and 11b having a thickness of about 0.15 mm are used, the distance between the tape opposing surfaces facing each other at the time of chuck engagement (D shown in FIG. 4A) It is generally about 1.5 mm. In the present embodiment, since the protrusions 20a and 20b face the same position on the inner surface of the bag, if the protrusions projecting and opposing to the tape opposing surface interfere with each other between the tape opposing surfaces, the fingers are interposed between the protrusions at the time of opening the bag. It becomes hard to put in and damages the easy opening property of the bag. On the other hand, the protrusion 20 is the back-side outer surface (and Fig. 4 of the W ₁₎ and a back inner side (the same as W _2), the sum (equal to W) of the protrusion in the direction of the width, for example, less than about 0.3㎜ The projections are so small that the fingers are deteriorated and the fingers do not function as slip prevention means.

Thus, in the present embodiment, for example, a tape having a thickness of about 0.15 to 0.16 mm, the maximum width W that protrudes the sizes of the protrusions 20a and 20b toward the inner and outer surfaces of the bag body 1, respectively, It is set so that it may be 0.3 mm or more, and to be at most the distance between tape opposing surfaces. In this case, W ₁ ≒ W ₂ ≒ 0.67 mm, and if the thickness of the tape is 0.15 mm, W ≒ 0.67 (W ₁ ) + 0.67 (W ₂ ) + 0.15 (tape thickness) ≒ 1.5 mm (W) The entire width W of the protruding width is equal to or less than the distance between the tape opposing surfaces.

Further, the maximum width W is preferably set to be 0.5 mm or more and 1/2 or less (about 0.7 mm) of the distance between the tape opposing surfaces. In this case, for example, W ₁ ≒ W ₂ ≒ 0.28 mm, including W 0.12 mm of tape, W ≒ 0.28 (W ₁ ) + 0.28 (W ₂ ) + 0.15 (tape thickness) ≒ 0.7 mm ( W), and the whole W of the protruding width can be at most 1/2 of the distance between the tape opposing surfaces.

In this way, even if the protrusions 20a and 20b are disposed opposite to the same position on the inner surface of the bag body, the total width of the protrusions of the protrusions projecting between the tape opposing faces is equal to the distance between the tape opposing faces while ensuring the finger locking property. The distance (about 1.5 mm) is not exceeded, and the insertion property of a finger is not impaired. As a result, in the present embodiment, the pair of projections 20a and 20b serving as the finger slip prevention means can be formed as large as possible without interfering with each other. It can be secured.

In this way, the protrusions 20 projecting integrally and uniformly to the inner surface side and the outer surface side of the bag main body 1 can be simultaneously gripped at the same location from inside and outside the bag with two fingers or the like, as shown in FIG. As described above, the inner surface side or the outer surface of the bag as compared with the protrusion widths (w ₁ and w ₂ shown in FIG. 4B) of the projections of the conventional sealing bag (see FIG. 12), which individually project to the inner surface side or outer surface side of the bag. Each protrusion width on the side can be made small, and as a result, the whole protrusion width can also be made smaller than in the related art (see W shown in FIG. 4A and w shown in FIG. 4B). Accordingly, in the sealed bag having the protrusions 20 of the present embodiment, for example, protrusions may occur when the bag main body 1 is umbilized, and manufacturing becomes difficult, or protrusions protrude to the inner surface of the bag and the openings are formed. The problem that a finger becomes difficult to be inserted also disappears, and the sealing bag which is excellent in a small and easy opening property can be efficiently manufactured.

In addition, in the present embodiment, as described above, the pair of tapes 11 are adhered to the inner surface of the bag main body 1 by heat fusion. However, about the protrusions 20 formed on the tapes 11, It is prevented from being heat-sealed to the bag main body 1. That is, in this embodiment, when heat-sealing the chuck | zipper 10 which has the protrusion part 20 in the tape edge part to the bag main body 1 side, only the remaining tape part except the protrusion part 20 is fused to the bag side, The projection 20 is not fused to the bag side (see FIG. 2).

Although the synthetic resin chuck 10 according to the present embodiment is thermally fused as in the case of a normal sealed white, the chuck 10 is integrally adhered to the bag main body 1, but the entire chuck with the protrusions 20 is thermally fused as it is. There is a fear that the projections 20 melt by heat to flatten, and thus do not function as slip prevention means of the fingers. Therefore, in this embodiment, only the remaining part of the tape 11 except the protrusion part 20 of the chuck 10 is heat-sealed to the bag side, and it does not fuse with respect to the protrusion part 20, and thereby the protrusion part 20 ) Is prevented from melting and flattening, and the protrusions 20 can effectively function as finger slip prevention means.

Moreover, since the whole chuck | zipper 10 which has the protrusion part 20 is accommodated in the bag main body 1, and the opening protrusion part of the bag main body 1 extends outside the chuck 10, this opening protrusion part is fused. It can also be top-sealed. In this type of sealing bag, when used for distribution, for example, it is necessary to seal all four sides of the bag including the opening portion on the chuck side in order to completely seal the bag. In the sealing bag of this embodiment, since the opening protrusion part of the bag main body 1 extends outward of the chuck 10, as shown in FIG. 5, this opening edge part can be top-sealed by heat-sealing etc. (See top seal part 5a shown to FIG. 5A and FIG. 5B). Thereby, top seal | sticker property is not impaired by providing the protrusion part 20, and it can respond to the sealing bag for distribution which requires high sealing property.

In addition, although the protrusion part 20 which concerns on this embodiment forms one convex protrusion of circular cross section on the tape 11 as mentioned above, it is integrated in both the inner surface side and the outer surface side of the bag main body 1. As shown in FIG. As long as it is a convex protrusion which can protrude normally, the cross-sectional shape, number of protrusions, etc. are not specifically limited. For example, as shown in FIG. 8, the projection part 20 can also be made into convex protrusion of cross section angular shape, such as square (FIG. 8A) and a rhombus (FIG. 8B). As for the number of the projections 20, for example, as shown in Fig. 9, a plurality of end portions of each tape 11 may be formed.

In addition, in the present embodiment, as described above, the maximum width W of each protrusion 20 corresponds to a tape thickness of about 0.15 to 0.16 mm and the distance (about 1.5 mm) between the tape opposing surfaces. ) Is less than or equal to the distance between the tape opposing faces (about 1.5 mm), of course, this value can be appropriately changed according to the thickness of the tape or the distance between the tape opposing faces. For example, when the distance between tape opposing surfaces exceeds 1.5 mm, the maximum width W of each projection 20 can also be 1.5 mm or more. In this way, the shape, number, and size of the protrusions 20 can be changed in various ways, and the cross section that is optimal for the sealing bag to which the present embodiment is applied depends on the size of the bag main body 1, the chuck 10, the coupling force of the chuck, and the like. The protrusions 20 of shape or number of strands can be selectively set.

Next, the opening / closing operation of the sealing bag with a chuck according to the present embodiment having the above configuration will be described with reference to FIGS. 2, 6 and 7. FIG. 6: shows the opening operation | movement of the sealing bag with a chuck | zipper according to this embodiment, and is a perspective view seen from the bag upper side, FIG. 7 is the explanatory drawing which showed the opening operation of a sealing bag similarly, and shows a bag cross section typically.

First, in the state in which the engagement of the chuck 10 provided in the bag main body 1 is released (state shown in FIG. 2A), since the opening part 1a is opened, the medicine inside the bag main body 1 Arbitrary contents, such as food, a general goods, can be accommodated. After the contents are stored in the bag main body 1, the chuck 10 can be closed to seal the bag main body 1.

When closing the chuck 10, the female side engaging portion 12a and the male side engaging portion 12b (see FIG. 2A) of the chuck 10, which are spaced apart from each other, are gripped with a finger while being aligned. Both engaging portions 12a and 12b are engaged by pressing the gripping point with a finger (see FIG. 2B). Then, by moving the held finger along the opening, both engaging portions 12a and 12b can be engaged one by one, and the entire clamping device 12 can be closed and matched.

Next, when opening the chuck 10 in a state where the clamping device 12 is engaged (shown in FIG. 2B), first, the opening projection of the bag main body 1 is held by a finger and positioned at the bag edge. A pair of projections 20 to hold each with two fingers (see Figure 6). At this time, since the protrusions 20 integrally protrude to the inner and outer surface sides of the bag body 1, as shown in Fig. 7, both of the protrusions 20a and 20b are two fingers, respectively, the inner and outer surfaces of the bag. It is firmly gripped at one place, and the projection 20 is caught by the convex part of the finger | gripping tool. Moreover, since the opening protrusion of the bag main body 1 extends to the outer side (the palm side of the held finger) of the protrusion part 20, as shown in FIG. The finger is held together.

In this state, the bag main body 1 is pulled to both sides, and as shown in FIG. 6, a part of the engagement between the female side coupling portion 12a and the male side coupling portion 12b is released, and the coupling is dropped as it is. The entire clamping device 12 can be disengaged by spacing the chucks 10 away from the portions. Thereby, the sealing by the chuck 10 is released, the bag main body 1 is opened, the contents are taken out and the like, and after storing the contents, the chuck 10 is closed and matched as described above, and the bag main body is opened. (1) can be sealed.

As explained above, according to the sealing bag with a chuck which concerns on this embodiment, the protrusion part which becomes a slip prevention means at the time of bag opening and closing according to the edge part of the edge part of the chuck 10 which opens and closes the bag main body 1 ( 20, and the protrusions 20 are disposed so as to be positioned inside the opening 1a of the bag body 1 at the same time as the chuck 10, so that the chuck or the slip prevention structure is similar to that of the conventional sealed bag. It does not protrude largely to the outside, and the chuck and the whole bag can be miniaturized. Moreover, in this embodiment in which the whole chuck 10 containing the protrusion part 20 is accommodated in the bag main body 1 in this way, the opening protrusion part of the bag main body 1 further extends to the outer side of the chuck 10. Since the whole of the opening 1a with the chuck 10 is covered with the side films 2 and 3 of the bag main body 1, in the case of opening and closing of the sealed bag, the contents overflow or foreign matter enters. It disappears and the top seal of an opening part is also possible.                 

And in this embodiment, the protrusion part 20 used as the finger slip prevention means of a sealing bag is the inner surface side and the outer surface side direction of the bag main body 1 in the state in which the chuck | zipper 10 adhered to the inner surface of the bag main body 1. It is made of convex protrusions, such as a circular cross section, which protrudes substantially uniformly in the same shape, and this convex protrusion is located inside the bag without exposing it from the opening portion 1a of the bag main body 1, In this case, the projections 20 integrally projecting on the inner surface side and the outer surface side of the bag body 1 can be firmly gripped at two locations on the inner and outer surfaces of the bag with two fingers.

Moreover, since the projection part 20 is located inside the bag body, the back opening projection extends further to the outer side (the palm side of the gripping finger) held by the finger, and the extension part also has the projection part 20. You can hold it with your finger at the same time.

Therefore, according to the sealing bag of this embodiment, since the projection part 20 which protrudes in the bag inner and outer surface can be hold | positioned at one place, the projection part 20 can be hold | maintained certainly without disperse | distributing a force, and also the projection part 20 Since the back edge extending from) can also be gripped, the back edge can be maintained without the force being concentrated only on the projection 20. This makes it possible to open the sealing bag easily and smoothly and reliably without any slipping of the fingers and no pain, numbness, or the like at the fingertips as in the conventional sealing bag.

Moreover, the projection part 20 which can be grasped simultaneously in the same location from the inside and outside of a bag like this is compared with the protrusion of the conventional sealing bag which protrudes individually to the inner surface side or the outer surface side of a bag, etc. to the inner surface side or the outer surface side of the bag main body 1 Each projection width itself can be made small, and as in the prior art, when the bag is laid down, projections occur, and manufacturing becomes difficult, or projections protrude to the inner surface of the bag, making it difficult for a finger to enter the opening. .

In addition, in this embodiment, when the chuck | zipper 10 provided with the projection part 20 in each edge of the tape 11 is heat-sealed to the bag main body 1, the tape 11 which removes the projection part 20 of the Since only the remaining portion is fused to the bag side, and the protrusions 20 are not fused to the bag side, the protrusions 20 can be prevented from melting and flattening, and the protrusions 20 of the sealing bag according to the present embodiment can be prevented. It can function effectively as a finger slip prevention means.

Second Embodiment

Next, with reference to FIG. 10, 2nd Embodiment of the sealing bag with a chuck which concerns on this invention is described. It is a side cross-sectional view of the whole bag which shows typically the sealing bag with a chuck which concerns on 2nd Embodiment of this invention.

The sealing bag with a chuck which concerns on this embodiment shown in FIG. 10 is a modification of 1st Embodiment mentioned above, and the protrusion part 20 arrange | positioned facing the same position in the bag main body 1 in 1st Embodiment is shown. Is arranged at a different position with respect to the depth direction of the bag body (1). The other components are the same as those of the first embodiment, and the same components are denoted by the same reference numerals as the first embodiment, and detailed description thereof is omitted.

Specifically, in the protrusion 20 according to the present embodiment, as shown in FIG. 10, the male-side protrusion 20b has a female-side protrusion 20 in the depth direction (up and down direction in the drawing) of the bag main body 101. It is arrange | positioned so that it may be located inside bag inside 20a, and the position of both protrusion part 20a, 20b differs about 1 mm in the depth direction of the bag main body 1. As shown in FIG. In the present embodiment, similarly to the first embodiment, the protrusion widths (see W ₁ and W _{2 in} FIG. 4A) of the protrusions 20 formed in a circular cross section on the bag inner surface side and the outer surface side are formed almost evenly. The maximum width (refer to W shown in FIG. 4A) on the inner and outer surface sides of the bag 15 is 0.3 mm or more and 2.0 mm or less, and preferably the maximum width is 0.5 mm or more.

As described above, in a small sealing bag, when the tape is about 0.15 to 0.16 mm in thickness, the distance between the tape opposing surfaces during chuck engagement is about 1.5 mm. On the other hand, the protrusion 20 deteriorates the locking property of the finger when the sum W of the protrusion widths toward the back outer surface side W ₁ and the back inner surface side W ₂ is less than about 0.3 mm, for example. It does not function as a finger slip prevention means.

Therefore, in the present embodiment, the projections 20 are opposed to each other at positions where the bag main body inner surface is different, so that the maximum width W projecting toward the inner and outer surface side of the bag main body 1 is at least 0.3 mm and at most 2.0. Mm or less, preferably, the maximum width W is 0.5 mm or more and 1.5 mm or less (the distance between the tape opposing surfaces) is formed.

In the position where the opposing protrusions 20 do not interfere with each other, the maximum can be W ₁ ≒ W ₂ ≒ 1.5 mm, and if the thickness of the tape is 0.15 mm, it is W ≒ 1.5 + 1.5 + 0.15 ≒ 3.0 mm, It is possible to set W to twice the distance between the tape opposing faces. By the way, when W exceeds about 2.0 mm, a finger or a hand will not enter and an openability will be impaired. So, in this embodiment, the range of the distance between the tape opposing surfaces in which the opening property is not impaired, removing each interference | protrusion which generate | occur | produces mutual interference with each other by arrange | positioning each projection part 20 in the other position in the bag main body 1 is carried out. In the projections 20 to be made to be as large as possible.

In the present embodiment, the maximum width W of each projection 20 is set to a maximum of 2.0 mm, preferably 1.5 mm or less, corresponding to the distance between the tape opposing surfaces (about 1.5 mm). As in the case of the first embodiment described above, it is of course possible to appropriately change according to the distance between the tape facing surfaces, and, for example, when the distance between the tape facing surfaces exceeds 1.5 mm, each projection 20 The maximum width W of can also be set to 0.3 mm or more and less than the distance between opposing surfaces. In addition, although the position of the protrusion part 20a, 20b which differed in the depth direction of the bag main body 1 was set to about 1 mm in this embodiment, also about this, the protrusion part 20, the bag main body 1, and the clamping apparatus It goes without saying that it can be changed appropriately according to the size and shape of (12) and the like.

As described above, according to the sealing bag with the chuck according to the present embodiment, since the protrusions 20 arranged to face the inner surface of the bag main body 1 are arranged at different positions in the depth direction of the bag, the clamping device of the chuck 10 is provided. In a state in which (12) is engaged, that is, in a state where the sealing bag is closed to match, the opposing protrusions can be prevented from interfering with each other. And by this, the external shape of the protrusion part 20 which concerns on this embodiment can be set to an optimal size within the range of the distance D between the tape opposing surfaces which oppose at the time of chuck engagement, The protruding portion 20 having a size or shape that is easy to catch and easily inserts a finger can be arbitrarily formed, so that the easy opening of the sealing bag can be further improved.

EXAMPLE

Hereinafter, the Example of the sealing bag with a chuck which concerns on this invention is described more concretely, enumerating a comparative example. The example shown below is manufactured based on the following specific conditions with respect to the sealing bag shown by each embodiment mentioned above.

Example 1

(1) The chuck (tape and clamping device) was made of polypropylene.

(2) The protrusion part of the tape edge part was made into cross section spherical shape, and the diameter of the cross section circular part of this protrusion part was made into 0.3 mm.

(3) The position of the projection was formed so as to be the same position on the male side and the female side, corresponding to the sealing bag shown in the above-described first embodiment.

(4) The bag main body was formed using the film which laminated | stacked the biaxially stretched polypropylene film and the cast polypropylene film.

(5) The tape part except the protrusion part of the tape end part was fused with the film of the bag main body, and the protrusion part was not fused to the bag main body.

[Example 2]

The protrusion part of the tape edge part was made circular in cross section, and the diameter was 0.5 mm. Others were performed in the same manner as in Example 1.                 

Example 3

The projection part of the tape edge part was made circular in cross section, and diameter was 0.7 mm. Others were performed in the same manner as in Example 1.

Example 4

The projection part of the tape edge part was made circular in cross section, and diameter was set to 1.0 mm. Others were performed in the same manner as in Example 1.

Example 5

The projection part of the tape edge part was made circular in cross section, and the diameter was 1.5 mm. Others were performed in the same manner as in Example 1.

EXAMPLE 6 The protrusion part of the tape edge part was made circular in cross section, and the diameter was 0.3 mm. In addition, the position of the protrusion was shifted by 1 mm on the male side and the female side, corresponding to the sealing bag shown in the above-described second embodiment. Others were performed in the same manner as in Example 1.

Example 7

The projection part of the tape edge part was made circular in cross section, and diameter was set to 1.0 mm. In addition, the position of the protrusion was shifted by 1 mm on the male side and the female side, corresponding to the sealing bag shown in the above-described second embodiment. Others were performed in the same manner as in Example 1.

Example 8

The projection part of the tape edge part was made circular in cross section, and the diameter was 1.5 mm. Moreover, the position of the projection part was corresponded to the sealing bag shown in 2nd Embodiment mentioned above, and it arrange | positioned by 1.5 mm shifting in the male side and the female side. Others were performed in the same manner as in Example 1.

Example 9

The protrusion part of the tape edge part was made circular in cross section, and the diameter was 2.0 mm. Moreover, the position of the projection part was corresponded to the sealing bag shown in 2nd Embodiment mentioned above, and it arrange | positioned by 2.0 mm shifting in the male side and the female side. Others were performed in the same manner as in Example 1.

Comparative Example 1

The protrusion part of the tape edge part was made circular in cross section, and the diameter was 0.2 mm. Others were performed in the same manner as in Example 1.

Comparative Example 2

The protrusion part of the tape edge part was made circular in cross section, and the diameter was 2.0 mm. Others were performed in the same manner as in Example 1.

Comparative Example 3

The protrusion part of the tape edge part was made circular cross section, and diameter was 2.5 mm. In addition, the position of the projection was shifted by 2.5 mm on the male side and the female side. Others were performed in the same manner as in Example 1.

[Comparative Example 4]

As the chuck (tape with clamping device), a chuck "P-560" (produced by Idemitsu Unitech Co., Ltd., Japan) having a projection piece projecting only inside the bag was used. Others were performed in the same manner as in Example 1.

[Comparative Example 5]                 

The chuck which does not have a protrusion part, a protrusion piece, etc. in the tape edge part was used. Others were performed in the same manner as in Example 1.

Opening test of the sealing bags manufactured under the conditions of Examples 1 to 9 and Comparative Examples 1 to 5 was carried out to examine the ease of gripping and the ease of finger insertion, and furthermore, the generation and pinning of pin holes to the bag body side seal part. The deformation | transformation of a later protrusion part was investigated.

The investigation result is as Table 1 shown below.

TABLE 1

Diameter and protrusion width of protrusion Portrait,
Female
Position of protrusion Sealing feeling 1
(scrap paper
Ease) Sealing 2
(scrap paper
Ease) After discharge
Deformation of the projection Example 1 0.3 same △ ◎ ◎ Example 2 0.5 same O O ◎ Example 3 0.7 same O O ◎ Example 4 1.0 same ◎ △ ◎ Example 5 1.5 same ◎ △ ◎ Example 6 0.3 1 mm up and down △ ◎ ◎ Example 7 1.0 1 mm up and down ◎ ◎ ◎ Example 8 1.5 1.5mm up and down ◎ ◎ ◎ Example 9 2.0 2.0mm up and down ◎ △ ◎ Comparative Example 1 0.2 same Ｘ O ◎ Comparative Example 2 2.0 same ◎ Ｘ ◎ Comparative Example 3 2.5 2.5mm up and down ◎ Ｘ ◎ Comparative Example 4 0.7 same △ Ｘ △ Comparative Example 5 No projection - Ｘ Ｘ ━

The meanings of the symbols shown in Table 1 are as follows.

Sealing 1 ⊙: very easy to grip, O: easy to grip, Δ: slightly difficult to grip, Ｘ: difficult to grip

Sealing 2 ⊙: Very easy to insert finger, O: Easy to insert, △: Somewhat difficult to insert, Ｘ: Difficult to insert

Deformation of protrusion after umbilicalism: No deformation, △: Slight deformation (falling)

As can be seen from Table 1, when the position of the projection is at the same position on the male tape and the female tape, first, as shown in Example 1, when the diameter of the projection is 0.3 mm, the grip is held. Although ease fell slightly, it was confirmed that the finger was easy to insert. And as shown in Example 2 and Example 3, when the diameter of a projection part was made into the range of 0.5 mm to 0.7 mm, it was confirmed that the ease of holding and the ease of insertion of a finger are also favorable. In addition, as shown in Examples 4 and 5, when the diameter of the projection is in the range of 1.0 mm to 1.5 mm, it is confirmed that the ease of finger insertion is slightly reduced, but the gripability is very good. In this range, since the diameter of the projection was small as in Comparative Example 1, the gripability was not impaired, and as in Comparative Example 2, it was confirmed that the ease of insertion of the finger was not deteriorated because the diameter of the projection was large.

In addition, as shown in Examples 6 to 9, by changing the position of the projection in the range of 1 mm to 2.0 mm on the male side and the female side, the diameter of the projection can be increased to 2.0 mm, and the gripability is easy. It was confirmed that the ease of insertion of the finger was further improved. In this case, as shown in the comparative example 3, it was also confirmed that the diameter of the projection is excessively large, so that the ease of gripping and ease of finger insertion are impaired, and that the projection is not collapsed or deformed at the time of being removed.

In addition, the sealing bag with a chuck of this invention is not limited only to embodiment mentioned above, Of course, various changes can be made in the range of this invention.

For example, although the said embodiment demonstrated as a sealing bag the comparatively small sealing bag which accommodates a medicine, foodstuff, goods, etc. as an example, the use and object of a sealing bag are not limited to this case, but are made of synthetic resin As long as it is a sealing bag with a chuck which has the chuck | zipper which can seal a bag in a bag main body so that sealing is possible, this invention can be applied even if it is a bag of what use and a function. Therefore, not only a small sealing bag, but also a variety of chucks, such as a relatively large sealing bag, a sealing bag having a check valve for inserting a nozzle for degassing and compressing the bag, a sealing bag having a chuck / slider for opening and closing the chuck and the like. The present invention can also be applied to an attached sealing bag.

As described above, according to the sealing bag with the chuck according to the present invention, a protrusion is formed on the tape end edge of the chuck integrally with both the inner side and the outer side of the bag body, and the protrusion is formed from the opening of the bag body. By arranging without exposing the inner side of the bag without fusion to the side of the bag, it is possible to reliably improve the easy opening property of the bag without causing the chuck or the entire bag to be enlarged and melting, flattening or the like occurring at the time of discharge. have. Thereby, especially the sealing bag with a chuck suitable for the small sealing bag used for accommodation of medicines, foodstuffs, and goods can be implement | achieved.

Claims (13)

Bag body which is opened to one side, A pair of tapes attached to the vicinity of the opening of the bag main body and opposed to each other along the opening of the bag main body, and formed on opposing surfaces of the pair of tapes to be detachably coupled along the opening of the bag main body to form the bag main body. A sealing bag with a chuck provided with a chuck having a pair of male and female clamping devices for sealing an opening and closing thereof, A convex protrusion formed on the edge portion of the bag body opening side of each of the pair of tapes, and having protrusions integrally projecting on the inner surface side and the outer surface side of the bag body, The protrusion is located inside the opening edge of the bag main body by adhering the pair of tapes by heat fusion to the inside of the opening of the inner surface of the bag main body, The protrusions provided on the pair of tapes are not heat-sealed to the inner surface of the bag body. Sealing bag with chuck. delete The method of claim 1, The protrusion is disposed at the same position with respect to the depth direction of the bag body Sealing bag with chuck. The method of claim 3, wherein The maximum width | variety of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.3 mm or more and is less than the distance between tape opposing surfaces. Sealing bag with chuck. The method of claim 3, wherein The maximum width of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.5 mm or more and 1/2 or less of the distance between the tape opposing surfaces. Sealing bag with chuck. The method of claim 1, The protrusion is disposed at a different position with respect to the depth direction of the bag body Sealing bag with chuck. The method of claim 6, The maximum width of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.3 mm or more and 2.0 mm or less Sealing bag with chuck. The method of claim 6, The maximum width of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.5 mm or more and 2.0 mm or less Sealing bag with chuck. The method of claim 6, The maximum width | variety of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.3 mm or more and is less than the distance between tape opposing surfaces. Sealing bag with chuck. The method of claim 6, The maximum width | variety of the said projection part in the inner surface side and outer surface side protrusion direction of the said bag main body is 0.5 mm or more and the distance between tape opposing surfaces. Sealing bag with chuck. The method of claim 6, The deviation of the projection in the depth direction of the bag main body is in the range of 1.0 mm to 2.0 mm. Sealing bag with chuck. The method according to any one of claims 1 or 3 to 11, The protrusions constitute convex protrusions having a circular cross section. Sealing bag with chuck. The method according to any one of claims 1 or 3 to 11, The protrusions constitute convex protrusions having an angular cross section. Sealing bag with chuck.

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