TW202021499A - Systems and methods for improved zipper slider garage - Google Patents

Abstract

A slider garage includes an overmolded body, the overmolded body oriented on a zipper, the overmolded body including an overmolded male portion and an overmolded female portion, the overmolded male and female portions positioned on an end of the zipper, such that each is on one side of the zipper, the overmolded male portion being shaped such that it fits in the overmolded female portion in a watertight fashion and the overmolded body is molded over a portion of the zipper.

Description

System and method for improving zipper head cap

The present invention relates to a system and method for improving the cap of a zipper puller. [Related Application Case] This application is part of U.S. Patent Application No. 15/612,926 filed on June 2, 2017 (it is a continuation of PCT Application No. PCT/US2015/063451 filed on December 2, 2015) Following the case, the PCT application claims the priority of U.S. Provisional Patent Application No. 62/087,687 filed on December 4, 2014. The entire contents of the aforementioned patent applications are incorporated herein by reference.

One weakness of many waterproof zippers is the final closing point of the zipper. In many zipper constructions, a small but important hole will exist at the closing point of the zipper. Due to the performance required by the waterproof nature of the zipper, even such a small hole is still unacceptable.

Most, if not all, polymer zipper systems are made with olefin-based polymers (for example, polypropylene or polyethylene). The shape of the polymer zipper is manufactured using extrusion processing. Olefin-based systems are popular in many polymer zipper systems because of the low cost of polymer resins and their low coefficient of friction. A low coefficient of friction is important so that the ball and groove of the zipper can be pushed together with minimal force. However, olefin-based zipper systems have their limitations. Most olefin-based zipper systems are made of polyethylene, and polyethylene is not durable when used in outdoor environments where extreme temperatures affect the performance of the material. Polypropylene and polyethylene zipper shapes lack tensile and shear strength and good elongation characteristics. When they are exposed to high temperature pressure load, they also have much compression set. Therefore, they have not been used in extreme applications that are normally used in hot environments, such as "dry bags" and "wet suits". Instead, they are used in sandwich bags and other low-efficiency applications.

In one embodiment, a zipper pull cap includes an overmolded body that is oriented on the zipper, and the overmolded body includes an overmolded male part and an overmolded body. A molded female part, the overmolded male part and the overmolded female part are arranged at one end of the zipper such that each is on one side of the zipper, and the overmolded male part is shaped So that it is embedded in the overmolded female part in a waterproof manner and the overmolded body is molded on a part of the zipper. Alternatively, the zipper includes a male side and a female side, the overmolded male part is provided on the male side of the zipper and the overmolded female part is provided on the female side of the zipper . In an alternative embodiment, the overmolded body forms a U-shape and the overmolded male part and the overmolded female part are part of the u-shaped. In another alternative, the overmolded male part and the overmolded female part are located in the first and second sides of the overmolded body when the zipper pull is engaged in the zipper pull cap. The inside of the overmolded body that meets. Alternatively, the zipper interfaces with the overmolded body without interference. In another alternative, the zipper includes a continuous upper edge. Or, a flange of the zipper is not exposed between the zipper and the overmolded body. In another alternative, the zipper has no breaks along the length of the zipper. Or, along the length of the zipper, there is no break between the zipper and the zipper head cap.

In one embodiment, a zipper pull cap includes an overmolded body that is disposed on one end of a zipper, and when the overmolded body is engaged with a zipper pull, the overmolded body A waterproof seal is provided, wherein the overmolded body is molded on a part of the zipper. In an alternative embodiment, the overmolded body forms a U-shape and an overmolded male part and an overmolded female part are part of the U-shape. In another alternative, the overmolded male part and the overmolded female part are located in the first and second sides of the overmolded body when the zipper pull is engaged in the zipper pull cap. The inside of the overmolded body that meets. Alternatively, the zipper interfaces with the overmolded body without interference. In another alternative, the zipper includes a continuous upper edge. Or, a flange of the zipper is not exposed between the zipper and the overmolded body. In another alternative, the zipper has no breaks along the length of the zipper. Or, along the length of the zipper, there is no break between the zipper and the zipper head cap.

In one embodiment, a zipper puller cap includes an overmolded body that is oriented on the zipper, and the overmolded body includes an overmolded male part and an overmolded female part The overmolded male part and the overmolded female part are arranged at one end of the zipper so that each is on one side of the zipper, and the overmolded male part is shaped so that it is The waterproof method is embedded in the overmolded mother part and the overmolded body is molded on a part of the zipper. Alternatively, the zipper includes a male side and a female side, the overmolded male part is provided on the male side of the zipper and the overmolded female part is provided on the female side of the zipper . In an alternative embodiment, the overmolded body forms a U-shape and the overmolded male part and the overmolded female part are part of the u-shaped. In another alternative, the overmolded male part and the overmolded female part are located in the first and second sides of the overmolded body when the zipper pull is engaged in the zipper pull cap. The inside of the overmolded body that meets.

In one embodiment, a zipper head cap includes an overmolded body that is oriented on the zipper, and the overmolded body includes an overmolded male part and an overmolded female part The overmolded male part and the overmolded female part are arranged at one end of the zipper so that each is on one side of the zipper, and the overmolded male part is shaped so that it is The waterproof method is embedded in the overmolded mother part. Optionally, the zipper includes a male side and a female side, the overmolded male part is disposed on the male side of the zipper, and the overmolded female part is disposed on the female part of the zipper Side up. Alternatively, the zipper puller cap further includes an inner wall in the overmolded body, wherein the size of the inner wall is made to have a height, when a zipper puller advances to the end of the zipper puller cap away from the zipper At this time, the height causes the inner wall to seal the zipper head. Optionally, the inner wall includes an oblique portion, so that the oblique portion forms a slope for the zipper head to gradually seal the inner wall. In one configuration, the inner wall of the zipper head cap includes a part away from the zipper, the part away from the zipper has a substantially U-shaped shape, and the inner wall of the zipper head cap includes a zigzag-shaped part, It has a first part on the male side of the zipper (which is the side containing the overmolded male part) and a first part on the female side of the zipper (which is the side containing the overmolded female part) ) On the second part, and the end of the zigzag part adjacent to the zipper has a first position and a second position, and the first position is characterized in that when the zipper head is engaged in the zipper head cap, The first part on the male side of the zipper is immediately adjacent to the second part on the female side of the zipper, and the second position is characterized in that when the zipper head is not engaged in the zipper head cap At this time, the first part on the male side of the zipper is away from the second part on the female side of the zipper. Optionally, the overmolded female part and the overmolded male part have a first position and a second position, and the first position is characterized by the overmolded female part and the overmolded male part It is not engaged, and the second position is characterized in that the overmolded female part and the overmolded male part are engaged. Alternatively, the shape and position of the overmolded female part and the overmolded male part are such that when the overmolded male part and the overmolded female part have a first position and a second position and are both in the In the second position, the overmolded female part is vertically pushed up and the overmolded male part is vertically pushed down. Optionally, the inner wall is surrounded by a side wall, and the side wall and the inner wall are connected to each other through a plurality of supports. Alternatively, the overmolded body includes a transition line, wherein the transition line defines a line through which the zipper head must pass to complete the seal of the zipper and the cap of the zipper head. In an alternative embodiment, the transition line is substantially aligned with the overmolded male part and the overmolded female part. In another alternative, the first part of the zipper (which is located on the first side where the overmolded male part is provided) is larger than the second part of the zipper (which is located on the overmolded female part by the The second side of the device is further extended into the overmolded body. Optionally, the overmolded body is made of thermoplastic polyurethane. In another alternative, the overmolded body has a hardness of 60 to 90 Shore A. Alternatively, the overmolded body portion is extruded to reduce viscosity. Optionally, the thermoplastic polyurethane includes a slip agent.

In another embodiment, a zipper pull cap includes an overmolded body that is disposed on one end of a zipper, and when the overmolded body is engaged with a zipper pull, the overmolded body The body provides a waterproof seal. Optionally, the zipper head cap includes an overmolded male part and an overmolded female part, wherein the overmolded male part is embedded in the overmolded female part for communication with the overmolded female part. A waterproof seal is formed when the zipper pull is engaged. Alternatively, the height of the overmolded body is such that when the zipper pull engages the overmolded body, the overmolded body seals the zipper pull. Optionally, the overmolded body includes a slope to facilitate the transition from the sealed state to the unsealed state. Or the overmolded body is made of thermoplastic polyurethane. In an alternative embodiment, the overmolded body has a hardness ranging from 60 to 90 Shore A.

In another embodiment, a zipper pull cap includes an overmolded body that is oriented on the zipper, and the overmolded body includes an overmolded male part and an overmolded female part Part, the overmolded male part and the overmolded female part are arranged at one end of the zipper so that each is on one side of the zipper, and the overmolded male part is shaped so that it It is embedded in the overmolded mother part in a waterproof manner. The overmolded female part and the overmolded male part have a first position and a second position, the first position is characterized in that the overmolded female part and the overmolded male part are not engaged, And the second position is characterized in that the overmolded female part and the overmolded male part are engaged. Optionally, the shape and position of the overmolded female part and the overmolded male part are such that when the overmolded male part and the overmolded female part have a first position and a second position, both In the second position, the overmolded female part is vertically pushed up and the overmolded male part is vertically pushed down. Alternatively, the zipper puller cap further includes an inner wall in the overmolded body, wherein the size of the inner wall is made to have a height, when a zipper puller advances to the end of the zipper puller cap away from the zipper At this time, the height causes the inner wall to seal the zipper head. Optionally, the inner wall includes an oblique portion, so that the oblique portion forms a slope for the zipper head to gradually seal the inner wall.

Described herein are an embodiment of an improved zipper pull cap and a method of using and manufacturing the zipper pull cap. Among the many advantageous aspects of the improved zipper puller cap, the zipper puller cap includes a shape that provides an interference fit between the zipper puller and the zipper puller cap of the zipper. This interference fit provides a seal at the end of the zipper, making the zipper waterproof. Although this is a characteristic structure to make the zipper head cap waterproof, there are still more additional features to allow the zipper head cap to function in a user-friendly and optimal manner. These characteristic structures include that the male side of the zipper enters the zipper head cap more than the female side, the sliding locking mechanism of the zipper, the zipper and the material of the zipper head cap, and the flexibility of the zipper head cap Qu design.

Fig. 1 shows an embodiment of a zipper pull cap 100. In some configurations, the zipper pull cap 100 is an overmolded extrusion. The zipper pull cap 100 is overmolded on a waterproof zipper 101, and the waterproof zipper includes a male side 120 and a female side 115. Each of the male side 120 and the female side 115 of the zipper 101 includes flanges 110, 105, which are used to attach the zipper 101 to a bag or other article. In implementation, the sides of the zipper 101 are joined together to close the bag or other items. In fact, the end of the zipper 101 where the zipper pull is parked may not be completely waterproof and may easily open if the zipper pull cap 100 is not used.

Many aspects of the zipper pull cap 100 can be seen in FIG. 1. The zipper pull cap 100 includes an overmolded male part 130 and an overmolded female part 135. The overmolded male part 130 and the overmolded female part 135 cooperate to ensure that a waterproof seal is formed on the zipper when fully engaged by the zipper puller (the zipper puller is not shown here) Between the head cap 100 and the male side 120 and the female side 115 of the zipper 101 (in the transition area). When the zipper puller engages the zipper puller cap 100, it exerts laterally inward pressure, which pushes the overmolded male part 130 and the overmolded female part 135 horizontally together. At the same time, this inward pressure will push the overmolded female part 135 vertically upwards, and because the shapes of the overmolded male part 130 and the overmolded female part 135 are consistent with the overmolded male part 135 The shapes of the parts 130 are complementary, so this inward pressure pushes the overmolded male part 130 vertically downward so that the two parts meet and engage in a locked and sealed position. Figure 6 shows this sealing position. The locked sealing position squeezes the overmolded male part 130 to form a tight seal.

FIG. 1 also shows the side wall 140, the supporting members 150, 151, 152, 153, 154, the gaps 160-165, and the inner wall 170 of the zipper head cap 100. The inner wall 170 also includes inclined portions 171, 172. Finally, the zipper pull cap 100 also includes a flange 180, which provides flexibility and sealing of the bag or other items. The different embodiments of the zipper pull cap 100 may not include some of these faces and still function; but in many embodiments, the oblique portions 171, 172 are used for sealing. In order to have the best function, it is important to maintain a zipper head cap with a balance between rigidity and flexibility. This balance allows the zipper puller to operate smoothly on the zipper 101 and the zipper puller cap 100.

When decomposing the sealed zipper 101 to the simplest composition, it is important to recognize the transition point 185. When the zipper puller moves along the zipper 101 and starts to engage the zipper puller cap 100, the inside of the zipper puller starts to contact the inclined portions 171, 172. After the downward facing interior of the zipper puller passes through the transition point 185, a waterproof seal is formed. The seal can be formed for many reasons, including but not limited to the engagement of the overmolded male part and the overmolded female part, and the engagement of the zipper puller with the zipper puller cap. This can be achieved without oblique parts 171, 172; and in some alternatives, the zipper head cap 100 can have a hard transition at point 185, never providing a downward facing side of the zipper head The internal contact and/or interference transition to a certain degree of interference for sealing the zipper 101 and the zipper head cap 100. As can be seen, the zipper head is difficult to operate in this case, because the zipper head and the zipper head cap 100 will be significantly buckled in a short distance. This will require a lot of power from the user. Therefore, the first innovative aspect of the zipper pull cap 100 is that the zipper pull seals the inner wall 170 to make the seal waterproof. Another innovation is the oblique portions 171, 172, which gradually transition the zipper head into a sealed position by using the wedges provided by the oblique portions 171, 172. Pulling the zipper head toward the wedge can provide an upward force substantially perpendicular to the movement of the zipper head. The facing of the inclined parts 171 and 172 makes the zipper 101 easier to operate.

In some configurations, even with isometric portions 171, 172, the zipper is difficult to operate. In order to have a strong seal, the inner wall 170 must be rigid enough to avoid buckling in a way that would break the seal between the zipper head and the inner wall 170. In order to achieve this, the inner wall 170 can be thickened or made of a harder material. Although this ensures a seal, the engagement and disengagement of the zipper head with the zipper head cap 100 can be more difficult due to the lack of yielding and buckling. In order to have a thinner and more flexible inner wall 170, the side wall 140, the support members 150, 151, 152, 153, 154, and the voids 160-165 are included in many embodiments. The side walls 140, the support members 150, 151, 152, 153, 154 and the gaps 160-165 provide both the flexibility and rigidity of the zipper puller cap 100 to prevent the zipper puller and the zipper puller cap 100 between Unwanted seal loosening.

It should be noted that the support members 150, 154 and the transition point 185 are almost coincident. This is an important position on the zipper head cap 100. Since the transition point 185 is the main point where the seal is achieved, this point is optimized by including the supports 150, 154 at the same point in many configurations. Therefore, the zipper pull cap 100 is prevented from flexing significantly at this point, and at the same time, the gaps 160, 161, 164, 165 allow greater flexing in front of and behind the transition point 185. Other supports and voids function in the same way to allow flexure and support. Similarly, the flange 180 can assist in yielding and flexing the entire device.

In addition to the structure of the zipper head cap 100, the materials used are also optimized. Typically, the zipper 101, the zipper head, and the zipper head cap 100 are composed of TPU (Thermoplastic Polyurethane). Unlike olefin-based plastics, TPU is a cross-linked polymer elastomer, which exhibits rubber-like properties under high and low hardness. TPU polymers exhibit extremely high tensile and tear strength and high elongation characteristics at high and low extreme temperatures. The TPU polymer also exhibits excellent resistance to compression set. TPU polymers are designed to be used in extreme outdoor applications. In sealing applications (such as zipper head caps), materials with relatively low hardness are due to their excellent sealing properties (this includes that it is soft/ductile and tacky/can stick to itself Etc.) while being used. The side effect of these excellent sealing properties is that they tend to be sticky and "stick" to other materials when in contact. In the application of the zipper puller cap, because of the interference fit between the zipper puller and the zipper puller cap 100, this side effect is magnified, so that the zipper puller will have problems when engaging and disengaging the zipper puller cap 100. problem. In some alternative embodiments, the solution is that the zipper head cap 100 is made of a compound material. The compound contains 75A hardness TPU and slip agent. This particular combination of materials produces a component that retains excellent sealing properties and at the same time allows the zipper pull to easily engage and disengage the zipper pull cap 100. Furthermore, in an alternative, the TPU material can be extruded. Shallow regular or irregular textures can be applied to the TPU material. The depth, size, and spacing of these textures are typically between 0.01 mm and 1 mm, and the configuration can be a combination of different depths, sizes, and spacings. Typically, the depth of these textures is less than 0.1 mm. The texturing nature of the TPU can prevent the TPU from sticking or adhering to itself and can improve the ease of passing through each other when used in sliding parts.

Figure 2 shows a perspective view of the zipper head cap. In this drawing, many aspects of the zipper 101 and the zipper pull cap 100 can be seen. The oblique nature of the isometric portions 171, 172 can be seen in this drawing, and the convex nature of the inner wall 170 can also be seen. Moreover, the overmolded male part 130 and the overmolded female part 135 can be seen more clearly. It can be seen here how the overmolded male part 130 is embedded in the overmolded female part 135 and the protruding ball part of the male side 120 embedded in the groove 115 of the female side 220 The zipper 101 is effectively covered on 210. This helps to produce a more effective seal. In many embodiments, the zipper head cap 100 is designed to work with a ball-in-socket type zipper, as shown in FIG. 2. In this type of zipper, the ball portion 210 of the male side 120 is pressed into the groove 220 of the female side 115. The male side 120 and the female side 115 flex and slide relative to each other to produce this engagement, and certain parts of the zipper 101 can be made more or less flexible to provide where needed Rigidity and flexibility to provide engagement. Sliding coatings or materials embedded with sliding coatings can also be used. In this drawing, a portion 240 of the flange 180 has been segmented so that it can be more easily flexed between the flexure curves 245,250. These deflection curves 245, 250 provide flange 180 flexibility where it is more complementary to the function of the zipper and tend to provide deflection away from the sides 260, 261 of the zipper puller cap 100, rather than at the ends. 262 provides deflection. This helps to support the continuous integrity of the zipper puller cap 100 and the inner wall 170 of the zipper puller cap 100, which is important for waterproof sealing.

FIG. 3 shows a perspective view of the zipper pull cap 100 in a fully engaged position. In this position, the inclined portions 171, 172 are tightly squeezed together and the viscosity of the material of the zipper head cap 100 will further provide a tight fit and resistance to moisture penetration. It is clear here how the ball part 210 engages the groove 220 to close the main part of the zipper 101.

FIG. 4 shows a side view of the zipper head cap 100 engaged with a zipper head 410. The inner wall 170 engages with the bottom inner surface 420 that can be partially seen in the figure. The side wall 430 and the open area 440 of the zipper puller 410 serve to gradually apply pressure to the side wall of the zipper puller cap 100 and help maintain a firm seal. Here, it is also pointed out that the opposite side of the zipper head cap 100, which is not shown in many drawings, can also be a raised inner wall which is opposite to the upward inner wall of the zipper head 410. Surface engagement. This may be omitted in some embodiments, because the bottom of the zipper pull cap 100 is usually inside the bag or other item that is intended to be made waterproof.

FIG. 5 shows how the male side 120 of the zipper 101 further extends to the line 510 in the zipper head cap 100, which is opposite to the female side 115 extending to the line 520. This is optimal, because in order for the overmolded female part 135 to accommodate the overmolded male part 130, the female side 115 must be stopped faster than the male side 120 because of the clearance required for the overmolded female part 135 It is deeper than the female side 115 of the zipper 101. Moreover, as can be seen from the drawing, the zipper pull cap 100 can allow the female side 115 to extend further downward without interfering with the operation of the zipper 101.

Figure 6 shows various pressures applied during the engagement of the zipper pull with the zipper pull cap 100. When the zipper puller advances toward the end of the zipper puller cap 100, the zipper puller applies an inward horizontal pressure 610 on the side of the zipper puller cap 100. When the horizontal pressure 620 of the zipper puller interacts with the overmolded male part 130 and the overmolded female part 135, the overmolded male part 130 is pushed in a vertical downward direction 630 . When the overmolded male part 130 extends below the line 650, the overmolded male part 130 and the overmolded female part 135 meet and engage on the line 640 to create a locked sealing position, which can be Prevent water from passing through the seal.

FIG. 7 shows an enlarged view of the side wall 140, the supporting members 150, 151, 152, 153, 154, the gaps 160 to 165, and the inner wall 170 of the zipper pull cap 100.

FIG. 8 shows another embodiment of how the male side 120 of the zipper 101 extends to the line 510A in the zipper puller cap 100. The line 510A and the female side 115 extend to the line 520A in a similar or same distance. In addition, the female side includes a diagonal cut-out portion 511 which is used for the insertion of the overmolded male part 130. Without this diagonal cutout, the male side 120 will interfere with the insertion of the overmolded male part 130.

FIG. 9A shows a side view of the zipper head 410. In this drawing, the inclination nature of the inside of the zipper head 410 can be seen. The bottom inner surface 420 is inclined from point 421 to point 422 and the inner surface 425 is similarly inclined from point 423 to point 424. This causes the mouth of the zipper puller 410 to be wider than the rear end of the approach points 421,423. FIG. 9B additionally shows the slope of the zipper pull cap 100. The zipper pull cap 100 includes a beveled portion from point 901 to point 902, which is where the zipper pull 410 first contacts the zipper pull cap 100. In addition, the thickness of the zipper head cap 100 gradually increases from point 902 to point 903, which provides a waterproof seal between the inner wall 170 and the bottom inner surface 420 and the inner surface 425 when they are engaged. In principle, the combination of the zipper head cap and the zipper head provides an interference seal because the zipper head is pressed against the zipper head cap. When the zipper head cap is completely engaged with the zipper head, the resulting height of the zipper head cap is slightly smaller than the height of the zipper head. The material of the zipper head and the zipper head cap is flexible and deformable so that when they move relative to each other along the respective slopes of the door, they can be fully engaged and form a seal.

In many embodiments, the inside of the zipper head cap itself includes a male part and a female part. This can be seen in FIG. 2, which shows how the overmolded male part 130 is embedded in the overmolded female part 135. In addition, it is obvious from the drawings that the continuity of the zipper head from the zipper part itself to the cap of the zipper head is not broken. This is different from other zipper systems with zipper teeth (which include a cap). The transition from the main zipper part to the zipper head cap is seamless and smooth, which improves the usability of the zipper. In addition, as can be seen in Figure 6, the main movement of the zipper is only that the male and female parts move towards and away from each other in a single plane. Many other toothless zippers that rely on hooks require movement in two planes to engage and separate. This is not the case with the zipper shown. Similarly, the zipper head cap itself only moves in a single plane for sealing and unsealing. In many embodiments, the zipper head cap includes a u-shaped portion with male and female portions as part of the u-shaped portion. In many embodiments, the male and female parts of a portion of the u-shaped portion are the zipper puller cap where the sides of the zipper puller cap meet when the zipper puller is engaged into the zipper puller cap. On the inside. In many embodiments, the zipper borders the zipper pull cap without interference. In many embodiments, the zipper portion is continuous at the upper edge of the device. In many embodiments, the flange is not exposed between the zipper and the zipper head cap. In many embodiments, the zipper does not break along the length of the zipper. In many embodiments, there is no break between the zipper along the length of the zipper and the zipper head cap. In many embodiments, the zipper and the zipper head cap are in close proximity to each other so that they are in contact. In many embodiments, the zipper puller cap is molded on a portion of the zipper.

10A and 10B show outline drawings of cross-sections of two embodiments of the zipper. In FIG. 10A a first zipper design is shown, which has a male side 120 and a female side 115. The flange 1010 and the flange 1020 can be used to attach the zipper to a bag or other item. FIG. 10B shows another embodiment. In this embodiment, the female part 1025 receives the male part 1030. A vacuum air pocket 1032 is created between these two. In addition, a second intermediate space 1033 can be formed between the female portion 1025 and the male portion 1030, which provides easier separation of the side edges, because the intermediate space/space provides an area that provides additional elasticity (give ) In the system. In addition, the cross portion 1031 is made smoother and more regular than the previous embodiment. The improved cross section provides easier movement of the zipper head part and provides less friction.

Figure 11 shows an alternative embodiment of a zipper pull cap 1110. In this embodiment, the male part 1115 is embedded in the female part 1120. The male portion 1115 extends beyond the male protrusion on the side where it is located, and the edge of the corner inside the zipper provides a gradual transition from the male portion 1115 to the insert of the zipper. This also provides smooth insertion and smooth removal from the corresponding female part, because this part is angled according to the separation angle of the sides compared to a more vertical protrusion. In addition, the zipper puller cap 1110 includes a raised flange 1120 (this exists on both sides of the zipper). The raised flange seals the inside of the zipper and prevents water from flowing into the middle hole of the zipper head cap. In addition, the zipper pull cap includes a raised portion 1130. This part assists in the molding of the device and helps ensure that enough material is extruded to fill the cap. In addition, this can assist in keeping the zipper puller in position when the zipper puller engages the zipper puller cap.

Figures 12A and 12B show the opposite end of the zipper and the zipper head cap. Here, the flange of the zipper 1240 may be thermally welded to the flange 1230 of the bottom cap. The bottom connecting part is arranged to completely surround the zipper in a watertight manner. The cut-out portion 1220 may be included to facilitate flexibility and heat dissipation during connection or over-molding processing. The cross-section of FIG. 12B shows how the male part 1025 and the female part 1030 are positioned in the bottom connecting part in a meshing manner to make them waterproof.

Figures 13, 14A and 14B show an embodiment of the zipper head, which mainly has a central column embedded in the gap portion of the zipper head cap, an open end complementary to the shape of the wide end of the zipper head cap, and a Parallel guides that travel along the zipper during operation.

Figures 15-18 show two embodiments of a waterproof bag, which uses an embodiment of a zipper including a waterproof zipper pull cap. Figures 15 and 16 show a perspective view of an embodiment of a waterproof bag that uses an embodiment of a zipper including a waterproof zipper pull cap. The bag 1510 includes a waterproof zipper 1520, which includes a zipper pull cap. In addition, the bag 1510 includes a pull tab 1530. The pull tab 1530 provides a lever point used when opening and closing the zipper, and the pull tab may include a strap or other attachment system. In many embodiments, the bag 1510 is composed of various waterproof materials and the zipper 1520 is welded (heat welded) to the position on the bag 1510. Figures 17 and 18 show perspective views of an embodiment of a waterproof bag that uses an embodiment of a zipper including a waterproof zipper pull cap. The bag 1710 includes a waterproof zipper 1720, which includes a zipper pull cap. In addition, the bag 1710 includes pull tabs 1730 and 1740. The pull tabs 1730, 1740 provide lever points for opening and closing the zipper, and the pull tabs may include straps or other attachment systems. In many embodiments, the bag 1710 is composed of various waterproof materials and the zipper 1720 is welded (heat welded) to the position on the bag 1710. As shown, the bag 1710 includes an opaque portion 1760 and a transparent portion 1750. This allows the user to see the inside of the bag without opening the bag. Furthermore, in the rear view of this device, a loop 1810 is shown, which is used to attach the bag to a belt or other item.

The above detailed description is a small number of embodiments for implementing the system and method for manufacturing the zipper puller cap and the system for the zipper puller cap and zipper and is not intended to limit the scope. The following patent application scope proposes several embodiments of the disclosed system and method for manufacturing the zipper puller cap and the system of the zipper puller cap with greater particularity.

100: Zipper pull cap 101: Waterproof zipper 115: Female 120: public side 105: flange 110: flange 130: Overmolded male parts 135: Overmolded mother part 140: sidewall 150: Support 151: Support 152: Support 153: Support 154: Support 160: gap 161: Gap 162: Gap 163: Gap 164: Gap 165: gap 170: inner wall 171: Oblique part 172: Oblique part 180: flange 185: transition point 210: ball part 220: groove 240: part 245: Deflection 250: torsion curve 260: The side of the zipper pull cap 261: Side of the zipper pull cap 262: end 410: Zipper puller 420: bottom inner surface 430: Sidewall of zipper puller 510: Line 520: line 610: Inward Horizontal Pressure 620: horizontal pressure 630: vertical downward direction 640: Line 650: line 510A: Line 520A: Line 511: Diagonal cut 421: point 422: point 425: inner surface 423: point 424: point 901: point 902: point 903: point 1010: flange 1020: flange 1025: female part 1030: public part 1032: Vacuum air pocket 1033: second intermediate space 1031: cross section 1110: Zipper cap 1115: public part 1120: female part 1130: high part 1230: flange 1240: Zipper 1220: Resection 1510: bag 1520: Waterproof zipper 1530: pull tab 1710: bag 1720: Waterproof zipper 1730: pull tab 1740: pull tab 1750: the transparent part 1760: Opaque part

[Figure 1] A top view showing an embodiment of a zipper pull cap and zipper;

[Figure 2] shows a perspective view of the zipper head cap of Figure 1;

[Figure 3] A perspective view showing the zipper head cap of Figure 1 in a fully engaged position;

[Fig. 4] A side view showing the engagement of the zipper head cap of Fig. 1 with the zipper head;

[Figure 5] shows a top view of the zipper head cap of Figure 1;

[Figure 6] shows that various pressures are applied during the engagement of the zipper head with the zipper head cap of Figure 1;

[FIG. 7] A view showing the engagement of the zipper head cap of FIG. 1;

[Figure 8] shows another embodiment of the zipper head cap;

[Figures 9A and 9B] shows a side view of the zipper head cap and a zipper head of Figure 1 before being engaged;

[FIGS. 10A and 10B] An outline view showing the cross-section of two embodiments of the zipper;

[Figure 11] shows an alternative embodiment of the zipper cap;

[Figure 12A and 12B] shows the end of the zipper opposite to the zipper cap;

[Figures 13, 14A and 14B] show examples of zipper pullers; and

[Figures 15-18] Show two embodiments of a waterproof bag using an embodiment of a zipper including a waterproof zipper pull cap.

1110: Zipper cap

1115: public part

1120: female part

1130: high part

Claims (20)

A zipper pull cap, including: An overmolded body, the overmolded body is oriented on the zipper, the overmolded body includes an overmolded male part and an overmolded female part, the overmolded male part and the The overmolded female part is provided at one end of the zipper so that each is on one side of the zipper, and the overmolded male part is shaped so that it is embedded in the overmolded female in a waterproof manner. And the overmolded body is molded on a part of the zipper. For example, the zipper head cap of item 1 of the scope of patent application, wherein the zipper includes a male side and a female side, and the overmolded male part is provided on the male side of the zipper and the overmolded female part Is set on the female side of the zipper. For example, the zipper head cap of item 1 in the scope of the patent application, wherein the overmolded body forms a U-shape and the overmolded male part and the overmolded female part are part of the u-shaped. For example, the zipper head cap of item 3 of the scope of patent application, wherein the overmolded male part and the overmolded female part are positioned when a zipper pull is engaged in the zipper head cap, the overmolded The interior of the overmolded body where the first and second sides of the body meet. For example, the zipper head cap of item 1 in the scope of patent application, wherein the zipper is interfaced with the overmolded body without interference. For example, the zipper head cap of item 1 in the scope of patent application, wherein the zipper includes a continuous upper edge. For example, the zipper head cap of item 1 in the scope of patent application, wherein a flange of the zipper is not exposed between the zipper and the overmolded body. For example, the zipper head cap of item 1 in the scope of patent application, wherein the zipper has no break along the length of the zipper. For example, the zipper head cap of item 1 in the scope of patent application, wherein along the length of the zipper, there is no break between the zipper and the zipper head cap. A zipper pull cap, including: An overmolded body, the overmolded body is arranged on one end of a zipper, when the overmolded body is engaged with a zipper head, the overmolded body provides a waterproof seal, wherein the overmolded body is molded On a part of the zipper. For example, the zipper head cap of item 10 in the scope of patent application, wherein the overmolded body forms a U-shape and an overmolded male part and an overmolded female part are part of the U-shaped. For example, the zipper head cap of item 11 in the scope of the patent application, wherein the overmolded male part and the overmolded female part are located in the overmolded body when the zipper head is engaged in the zipper head cap The interior of the overmolded body where the first and second sides meet. For example, the zipper head cap of item 10 in the scope of patent application, wherein the zipper is interfaced with the overmolded body without interference. For example, the zipper head cap of item 10 in the scope of patent application, wherein the zipper includes a continuous upper edge. For example, the zipper head cap of item 10 in the scope of patent application, wherein a flange of the zipper is not exposed between the zipper and the overmolded body. For example, the zipper head cap of item 10 in the scope of patent application, wherein the zipper has no breaks along the length of the zipper. For example, the zipper head cap of item 10 of the scope of patent application, wherein along the length of the zipper, there is no break between the zipper and the zipper head cap. A zipper pull cap, including: An overmolded body, the overmolded body is oriented on the zipper, the overmolded body includes an overmolded male part and an overmolded female part, the overmolded male part and the overmolded female The piece part is arranged at one end of the zipper so that each is on one side of the zipper, the overmolded male part is shaped so that it is embedded in the overmolded female part in a waterproof manner, The overmolded body is molded on a part of the zipper. For example, the zipper head cap of item 18 in the scope of patent application, wherein the overmolded body forms a U-shape and the overmolded male part and the overmolded female part are part of the U-shaped. For example, the zipper puller cap of item 19 of the scope of patent application, wherein the overmolded male part and the overmolded female part are located in the overmolded body when the zipper puller is engaged in the zipper puller cap The first and second sides meet inside the overmolded body.

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