JP4712672B2 - clip - Google Patents

Description

  The present invention relates to a clip used for fixing a part such as an interior part of an automobile to a mounting hole of a vehicle body panel, for example.

  Conventionally, such a clip has a head fixed to a part and a locking leg suspended from the head, and the locking leg is inserted into a mounting hole of a vehicle body panel and fixed. Things were used.

  For example, in Patent Document 1 below, in a clip that includes a head and a leg and is locked by inserting the leg into a hole in a panel of a vehicle body or the like, the leg is hung independently from the head 4 Each leg consists of a single leg that extends radially outward at the middle part and forms a tapered leg at the end, and each leg is near the middle part. The clip has the same shape and is formed symmetrically with respect to the central axis of the leg and equally spaced from each other.

  Further, Patent Document 2 below has a head and a locking leg suspended from the lower surface of the head, and is fixed to the panel by pushing the locking leg into the through hole of the panel. In the synthetic resin stopper as described above, the locking leg is vertically suspended from the lower surface of the head, and has three or four projecting pieces projecting outward from the center portion. An axial core portion provided with a predetermined interval between the pieces, and an imaginary shaft diameter drawn by the outermost peripheral portion of the projecting piece not exceeding the diameter of the through hole of the panel; and the shaft core portion Are arranged between the projecting pieces, and maintain a required interval between the projecting pieces, and each upper end portion is joined to the base portion of the shaft core portion or the lower surface of the head portion, and each lower end portion is joined to the lower end portion. It is joined to the leg end of the shaft core part, the middle of the length is separated from the shaft core part and a gap is provided, and each halfway of the length A plurality of elastic locking pieces each having a bulging portion having a size exceeding the diameter of the through hole of the panel on a side surface, and the shaft core portion is connected to the through hole when locked to the through hole of the panel. There is disclosed a stopper in which the elastic locking piece is reduced in diameter as it is pushed into the frame so that the bulging portion is hooked on the edge of the through hole of the panel.

Further, in Patent Document 3 below, a head abutting on the periphery of the mounting hole of the panel to be mounted, and extending from the head, inserted into the mounting hole, and engaged with a peripheral edge on the back side of the mounting hole. In the resin clip having a leg portion, the leg portion includes a shaft portion that is suspended from the center of the lower surface of the head portion, a radial portion extending radially from the shaft portion, and an upper end of the leg portion. And at least three protrusions connected to the lower surface of the part, and are arranged between the protrusions extending in the circumferential direction from these protrusions, the upper end of which is connected to the head, and the circumferential direction A predetermined slit is provided between the projecting end in the extending direction to the opposite end, and only the lower end thereof is connected to the opposing projecting portion, and the outer diameter thereof is made larger than the inner diameter of the mounting hole. A clip having an engagement piece is disclosed.
Japanese Utility Model Publication No. 4-105615 Japanese Patent No. 3560061 JP 2005-315369 A

  However, in the clip of the above-mentioned Patent Document 1, the leg portion is composed of four legs (elastic locking pieces) that hang down independently from the head portion, and therefore there is no shaft portion at the center of each elastic locking piece. First, there is a possibility that the position of the mounting hole is shifted due to a dimensional shift between the components, and when the leg portion is inserted obliquely with respect to the mounting hole, it cannot be inserted or bent due to buckling.

  Further, in the clip of Patent Document 2 described above, the protruding piece that protrudes outward from the center of the shaft core portion is positioned between the elastic locking pieces, and the locking holes are inserted into the mounting holes. The center position of the locking leg with respect to the mounting hole is performed by contacting the inner periphery of the locking leg. However, when the dimensional shift between the mounting holes is large and the leg portion is inserted obliquely at a considerably large angle with respect to the mounting hole, the projecting piece is inserted while being cut at the inner periphery of the mounting hole. Therefore, there has been a problem that the insertion resistance of the locking leg is increased.

  Further, in the clip of Patent Document 3, since one side of each engagement piece is connected to a protrusion extending radially from the shaft portion, the side edge connected to the protrusion of the engagement piece And the side edge in the direction away from the shaft part, the inward deflection rigidity is different, so it is difficult to obtain uniform bending rigidity on the entire circumference, and a large external force in the lateral direction with respect to the leg part in the mounted state When acted, depending on the direction, the engaging piece could be greatly deformed and easily removed.

  Therefore, the object of the present invention is to be able to be inserted and locked without buckling even when the position of the mounting hole is deviated and the insertion resistance does not increase so much when the locking leg is inserted into the mounting hole. Thus, it is an object of the present invention to provide a clip in which a substantially uniform bending rigidity can be obtained even when a lateral external force acts on the leg portion.

In order to achieve the above object, a first aspect of the present invention includes a head and a locking leg suspended from the lower surface of the head, and the locking leg is inserted into a mounting hole of the panel. In the synthetic resin clip that is fixed to the panel,
The locking leg is a shaft portion suspended from the center of the lower surface of the head,
The outer periphery of the shaft is arranged at a predetermined interval, the upper end is connected to the lower surface of the head, and the two sides of the lower end are connected to the shaft through two connecting ribs extending from the shaft. With three or more pieces of elastic locking pieces connected,
The outer periphery of the shaft portion excluding the connecting portion with the elastic locking piece is located inside the inner periphery of the elastic locking piece, and when the locking leg is inserted through the mounting hole of the panel, The clip is characterized in that the inner periphery of the elastic locking piece is configured not to contact the outer periphery of the shaft portion.

  According to the above invention, the locking leg has a shaft portion that is suspended from the central portion of the lower surface of the head, and three or more elastic locking pieces that are arranged on the outer periphery of the shaft portion at a predetermined interval. Therefore, even if the mounting holes are misaligned due to dimensional deviation between parts and the locking legs must be inserted obliquely with respect to the mounting holes, the elastic locking pieces are buckled or damaged by the shaft. Is prevented. Further, the outer periphery of the shaft portion excluding the connecting rib is located inside the inner periphery of the elastic locking piece, and when the locking leg is inserted into the mounting hole of the panel, the inner periphery of the elastic locking piece is the axis. Since it is configured not to contact the outer periphery of the part, the shaft part and the elastic locking piece are not scraped by the inner periphery of the mounting hole, and the insertion resistance is not significantly increased. Furthermore, since the upper end of the elastic locking piece is connected to the lower surface of the head and the two portions on both sides of the lower end are connected to the shaft, it is possible to obtain a substantially uniform bending rigidity all around.

  In addition, since the two portions on both sides of the lower end portion of the elastic locking piece are connected to the shaft portion via a connecting rib extending from the shaft portion, it has appropriate rigidity without impairing flexibility. Thus, the insertion resistance of the locking leg to the mounting hole can be kept relatively small, and the insertion workability can be improved.

  According to a second aspect of the present invention, in the first aspect of the present invention, the shaft portion is formed with a projecting piece substantially along the axial direction between the elastic locking pieces, and an upper end of the projecting piece. Is connected to the lower surface of the head, the lower end of the protruding piece forms the connecting rib, and the outer periphery of the protruding piece excluding the connecting rib is located inside the inner periphery of the elastic locking piece. Is to provide a clip.

  According to the above invention, by providing the projecting piece along the axial direction on the shaft part, it is possible to increase the rigidity of the shaft part and improve the guideability of insertion into the mounting hole, and the protrusion of the projecting piece excluding the connecting rib. Since the outer periphery is located inside the inner periphery of the elastic locking piece, even if the locking leg has to be inserted obliquely with respect to the mounting hole, the projecting piece abuts the inner periphery of the mounting hole. The insertion resistance is not significantly increased.

  According to a third aspect of the present invention, in the second aspect, the elastic locking piece is composed of four pieces arranged at an interval of approximately 90 degrees with respect to the shaft portion, and a pair of opposing elastic locking pieces The piece is formed wider and thinner than the other pair of opposing elastic locking pieces, and an angle between the pair of protruding pieces facing both sides of the wide elastic locking piece forms an acute angle. The clip is provided.

  According to the above invention, the wide elastic locking piece has an acute angle between the pair of projecting pieces facing both sides of the elastic locking piece. Although it becomes a position which contacts the front-end | tip of this protrusion, since the wide elastic locking piece is formed thinly, the bending allowance can fully be ensured. On the other hand, when the wide elastic locking piece is greatly bent inward, the wide elastic locking piece is in a position where it hits the tip of the protruding piece. Even when an external force is applied, the inner periphery of the elastic locking piece abuts against the protruding piece and further bending is restricted, so that the elastic locking piece is damaged or the clip is pulled out due to extreme deformation. Can be prevented.

  On the other hand, since the narrow elastic locking pieces are formed to be relatively thick, it is difficult to secure an allowance for inward bending, but a pair of projecting pieces facing both sides of the narrow elastic locking pieces Since the angles are obtuse, they can bend more greatly without interfering with the projecting pieces when bent inward, so that a sufficient allowance can be secured. In addition, by making it thicker than the wide elastic locking piece, the rigidity of the wide elastic locking piece and the narrow elastic locking piece is made substantially uniform, so that it is almost uniform over the entire circumference of the clip. Flexural rigidity can be provided.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, four outer perforations defined by the elastic locking piece, the connecting rib, and the shaft portion are formed on the outer periphery of the lower end portion of the locking leg. Of these holes, the one located below the wide elastic locking piece is narrower and extends longer than the one located below the narrow elastic locking piece. Is to provide a clip.

  According to the above invention, of the four punched holes formed on the outer periphery of the lower end portion of the locking leg and defined by the elastic locking piece, the connecting rib, and the shaft portion, below the wide elastic locking piece. It is narrower than the one positioned below the narrow elastic locking piece, and is longer and longer upward than the one positioned below the narrow elastic locking piece. The flexibility between the connecting portions on both sides of the lower end of the wide elastic locking piece can be made equal, and the bending rigidity of the entire periphery of the locking leg in the connecting portion can be made more uniform.

  According to a fifth aspect of the present invention, in the third or fourth aspect of the present invention, excessive deflection of the projecting piece is restricted between the projecting pieces of the shaft portion toward the narrow elastic locking piece. A clip in which rib-like projections are formed is provided.

  According to the above invention, even when a large external force is applied in a direction in which the elastic locking piece having a narrow width is bent with respect to the locking leg in the attached state, the inner periphery of the elastic locking piece is formed on the rib-shaped protrusion. Since the contact is restricted and further bending is restricted, it is possible to prevent breakage of the elastic locking piece and disconnection of the clip due to extreme deformation.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the upper end of each elastic locking piece is a clip that is gradually narrowed and connected to the lower surface of the head. It is to provide.

  According to the above invention, since the upper end portion of each elastic locking piece is gradually narrowed and connected to the lower surface of the head, when an external force acts on each elastic locking piece, it bends inward. In addition, since it becomes easy to be twisted at the narrow upper end portion, it can bend while following the inner periphery of the attachment hole, and the engagement force with respect to the attachment hole can be maintained.

  According to the clip of the present invention, the locking leg is elasticized by the shaft portion even when the position of the mounting hole is shifted due to a dimensional shift between parts and the locking leg has to be inserted obliquely with respect to the mounting hole. The buckling and breakage of the locking piece is prevented, the shaft portion and the elastic locking piece are not scraped by the inner periphery of the mounting hole, and the insertion resistance does not increase remarkably. Furthermore, since the elastic locking piece is connected to the lower surface of the head at the upper end and is connected to two connecting ribs on both sides of the lower end portion with connecting ribs extending from the shaft portion, it is suitable without losing flexibility. Has high rigidity. Therefore, the insertion resistance of the locking leg to the attachment hole can be kept relatively small, and the insertion workability can be improved.

  Next, an embodiment of a clip according to the present invention will be described with reference to FIGS. 1 is a perspective view of the clip, FIG. 2 is a front view of the clip, FIG. 3 is a right side view of the clip (the left side view is the same), and FIG. 4 is a plan view of the clip (the rear view is the same). 5 is a bottom view of the clip, FIG. 6 is a cross-sectional view taken along the line AA ′ in FIG. 4, and FIG. 7 is a cross-sectional view taken along the line BB ′ in FIG. 8 is a cross-sectional view taken along the line CC ′ of FIG. 2, FIG. 9 is an explanatory view showing cross-sections obtained by cutting the locking legs of the clip at various heights, and FIG. FIG. 11 is a sectional view showing a state in which the mounting member is fixed to the mounting hole of the mounting panel using the clip, and FIG. 12 is a diagram when inserting the clip into the mounting hole of the mounting panel. FIG. 13 is a cross-sectional view showing the bending state of FIG. 13 when the load is applied in the direction of the wide elastic locking piece in the attached state of the clip. Sectional view showing a viewing state, FIG. 14 is a sectional view showing a bending state when a load is applied in the direction of the narrow resilient locking pieces in the mounted state of the clip.

  As shown in FIG. 1, the clip 10 includes a head 11 and a locking leg 12. The head portion 11 includes a bottomed cylindrical base portion 13, a first flange portion 14 formed on the outer periphery of the upper end of the base portion 13, a second flange portion 15 formed on the outer periphery of the intermediate portion of the base portion 13, and the base portion 13. And a seal flange portion 16 formed on the outer periphery of the lower end portion. As shown in FIG. 6, the 2nd flange part 15 has the cyclic | annular protrusion 15a curved upwards.

  As shown in FIG. 11, the clip 10 is fitted into the engagement groove 18 of the attachment member 17, and the periphery of the engagement groove 18 is sandwiched between the first flange portion 14 and the second flange portion 15, and the attachment member 17 is fixed in advance.

  The seal flange portion 16 has a skirt shape whose peripheral edge extends obliquely downward, and also abuts on the upper surface of the attachment panel 19 to serve to seal the attachment hole 20. Examples of the mounting member 17 include a door trim of an automobile, and examples of the mounting panel 19 include a body panel.

  Referring to FIGS. 6, 7, and 8, the locking leg 12 has a shaft portion 21 that is suspended from the center of the lower surface of the head 11. Four projecting pieces 22 extend radially from the shaft portion 21 in the outer diameter direction. These projecting pieces 22 extend along the axial direction of the shaft portion 21, and their upper ends are connected to the lower surface of the head 11, and their lower ends are connected to elastic locking pieces 24 a and 24 b described later. A connecting rib 23 is formed.

  Four elastic locking pieces 24a and 24b are disposed on the outer periphery of the shaft portion 21 at predetermined intervals and at an angle of approximately 90 degrees. Among them, the pair of opposing elastic locking pieces 24a are wide, and the remaining pair of elastic locking pieces 24b facing each other are narrow. Each elastic locking piece 24 a, 24 b has an upper end 25 connected to the head 11. Further, the protruding piece 22 is substantially located between the elastic locking pieces 24a and 24b (see FIG. 8), and the lower end portions of the elastic locking pieces 24a and 24b are arranged at two places on both sides thereof. The projecting piece 22 is connected to a connecting rib 23 extending as a lower edge portion. Further, a slit 32 is provided between the elastic locking pieces 24a and 24b.

  The upper end portion 25 of each elastic locking piece 24a, 24b becomes gradually narrower as it approaches the head 11, so that when an external force is applied to each elastic locking piece 24a, 24b, it will only bend inward. Instead, it is possible to be twisted at the narrowed upper end 25.

  An engagement step portion 26 is formed at a portion slightly below the upper end portion, and a diameter-expanded portion 27 is provided at a portion below the engagement step portion 26. Furthermore, a portion below the enlarged diameter portion 27 forms a tapered portion 28 that gradually decreases in diameter. In the lower part than the taper portion 28, the end edge of the connecting rib 23 extends to the lower end portion 30 of the locking leg 12 through the connecting portion 29.

  On the outer periphery of the lower end portion 30 of the locking leg 12, four extraction holes 33 and 34 defined by the elastic locking pieces 24 a and 24 b, the connecting rib 23, and the shaft portion 21 are formed. Of these, the first punch hole 33 positioned below the wide elastic locking piece 24a is narrower and extends longer than the second punch hole 34 positioned below the narrow elastic locking piece 24b. ing.

  FIG. 10 shows a schematic structure of a mold for manufacturing the clip 10. This mold has a pair of molds 35 and 36 that slide in the direction of A in the drawing, and a plurality of molds 37 and 38 that open and close in the direction of the arrow B with respect to these molds 35 and 36. The pair of dies 35, 36 forms the outer peripheral shape of the clip 10, and has a wide elastic locking piece 24 a and an insertion portion 39 inserted into the gap between the shaft portion 21 and the projecting piece 22. Of the molds 37, 38, the pair of opposed molds 37 are inserted into the inner periphery of the wide elastic locking piece 24a, and the remaining pair of molds 38 are formed of the narrow elastic locking piece 24b. It is designed to be inserted into the inner circumference.

  Referring also to FIG. 8, the insertion portion 39 of the molds 37 and 38 can be inserted between the wide elastic locking piece 24 a and the protruding piece 22, and the inside of the elastic locking piece 24 a can be inserted. In order to secure a sufficient bending allowance, it is necessary to provide a predetermined gap S1. For this reason, the thickness t1 of the elastic locking piece 24a needs to be relatively thin, but the width W1 can be relatively wide. On the other hand, since the width W2 of the elastic locking piece 24b is restricted by the insertion portion 39, there is a restriction that the elastic locking piece 24b becomes relatively narrow. Therefore, in this embodiment, the width W1 of the elastic locking piece 24a is increased, the thickness t1 is decreased, the width W2 of the elastic locking piece 24b is decreased, and the thickness t2 is increased. The cross-sectional areas are made as equal as possible so that substantially uniform bending rigidity can be obtained on the entire circumference.

  On the other hand, in order to increase the thickness t2, the elastic locking piece 24b has a structure that does not interfere with the projecting piece 22 as much as possible when it is bent inward in order to ensure a sufficient amount of bending inward. There is a need. For this reason, in this embodiment, the pair of angles θ1 of the projecting piece 22 toward the wide elastic locking piece 24a is an acute angle, and the pair of angles θ2 toward the narrow elastic locking piece 24b is an obtuse angle. A clearance S <b> 2 between the stop piece 24 b and the protrusion piece 22 is secured, and the elastic locking piece 24 b is bent greatly inward without interfering with the protrusion piece 22.

  Further, since the angle varies depending on the direction of the projecting piece 22 as described above, the die 37 inserted at an acute angle θ1 has an elongated cross-sectional shape in the radial direction and is inserted at an obtuse angle θ2. The mold 38 has a wide cross-sectional shape in the circumferential direction. As a result, as shown in FIGS. 2, 3, and 4, the first punch hole 33 into which the mold 37 is inserted is narrow and long, and the second punch hole 34 into which the mold 38 is inserted is wide. It has a relatively short shape up and down. This brings about the following actions and effects. That is, the bending rigidity between the connecting ribs 23 located on both sides of the wide second punch hole 34 can be relatively low because the distance between the two is wide, whereas the narrow first punch hole 34 The bending rigidity between the connecting ribs 23 located on both sides of the 33 tends to be usually high because the distance between the two is narrow. However, in this embodiment, as described above, since the first punch hole 33 extends vertically, the bending rigidity is reduced even if the interval is narrow. This contributes to making the bending rigidity relatively uniform over the entire circumference.

  FIG. 9 shows cross-sectional shapes obtained by cutting the clip 10 at various heights and angles, and A to K in the drawing indicate cross-sectional shapes cut at positions indicated by corresponding arrows. . As shown in A to D in the figure, the connecting rib 23 extends radially outward as it goes upward from the lower end 30 of the locking leg 12. Then, as shown in FIGS. D, E, and F, the connecting ribs 23 are connected to both side portions of the elastic locking pieces 24a and 24b, and the connecting ribs 23 corresponding to both sides of the elastic locking pieces 24a and 24b. It is the shape supported by. Further, as shown in FIGS. G, H, and I, the outer peripheral diameters of the elastic locking pieces 24a and 24b are gradually increased, and the tapered portion 28 and the enlarged diameter portion 27 are formed. Furthermore, as shown in FIGS. J and K, the elastic locking pieces 24a and 24b are reduced in diameter to form the engaging step portion 26, and gradually become narrower toward the head portion 11, and the upper end The part is connected to the lower surface of the head 11.

  As shown by G to K in FIG. 9 described above, the outer periphery of the projecting piece 22 of the shaft portion 21 is located inside the inner periphery of the elastic locking pieces 24a and 24b. When the locking leg 12 is inserted into the mounting hole 20 of the mounting panel 19 (see FIG. 11), as shown in FIG. 12, even if each elastic locking piece 24a, 24b is bent inward, the shaft 21 The protruding piece 22 is prevented from contacting.

  Next, the operation and effect of the clip 10 will be described.

  As shown in FIG. 11, an engaging groove 18 formed in a mounting member 17 made of, for example, a door trim of an automobile is inserted into the base portion 13 between the first flange portion 14 and the second flange portion 15 of the clip 10. The periphery of the engaging groove 18 is sandwiched between the first flange portion 14 and the second flange portion 15, and the clip 10 is fixed to the mounting member 17 in advance.

  In this state, the locking leg 12 of the clip 10 is inserted into the mounting hole 20 of the mounting panel 19 made of, for example, a body panel or the like. Then, the elastic locking pieces 24a and 24b bend inward, the enlarged diameter portion 27 of the locking leg 12 passes through the mounting hole 20, and the engagement step portion 26 engages with the rear surface side peripheral edge of the mounting hole 20, The clip 10 is fixed, and the mounting member 17 is fixed to the mounting panel 19.

  By the way, when the locking leg 12 is inserted into the mounting hole 20, even if the locking leg 12 is inserted obliquely into the mounting hole 20 due to the displacement of the mounting panel 19 and the mounting member 17, In the clip 10, the presence of the shaft portion 21 prevents the locking leg 12 from buckling, and can be inserted into the mounting hole 20.

  Further, as shown in FIG. 12, the elastic locking pieces 24a and 24b bend until the outer periphery thereof reaches the inner peripheral position of the mounting hole 20. At this time, the inner periphery of the elastic locking pieces 24a and 24b is A gap that does not contact the protruding piece 22 of the shaft portion 21 is provided. Therefore, as described above, even if the locking leg 12 is inserted obliquely with respect to the mounting hole 20, the protruding piece 22 does not contact the inner periphery of the mounting hole 20, and the protruding piece 22 is Since the situation of having to insert while shaving does not occur, the locking leg 12 can be inserted smoothly.

  13 and 14 show a state in which the mounting member 17 is fixed to the mounting panel 19 via the clip 10, and the lateral direction is applied to the locking leg 12 of the clip 10 due to a difference in thermal expansion between the mounting member 17 and the mounting panel 19. It shows the state where the load of. 13 shows a state in which a load is applied in the direction of the wide elastic locking piece 24a, and FIG. 14 shows a state in which a load is applied in the direction of the narrow elastic locking piece 24b.

  In FIG. 13, even if a larger load is applied, the projecting piece 22 of the shaft portion 21 abuts on the inner periphery of the elastic locking piece 24a and prevents further deformation of the elastic locking piece 24a. 10 breakage can be prevented.

  Moreover, in each state of FIGS. 13 and 14, the inner periphery of the mounting hole 20 is obliquely applied to the adjacent elastic locking piece, and a pressing force in an oblique direction may act, but this embodiment Then, since the upper end 25 of each elastic locking piece 24a, 24b is formed so as to become gradually narrower toward the head 11, the elastic locking pieces 24a, 24b can be somewhat twisted. Thus, it can be deformed to fit the inner periphery of the mounting hole 20.

  And in this clip 10, even if the width of each elastic locking piece 24a, 24b differs, since thickness is adjusted so that a cross-sectional area may become substantially equal, it extends over the perimeter of the locking leg 12. Almost uniform bending rigidity can be obtained. Also, in the connecting portion 29 of each elastic locking piece 24a, 24b, as described above, the first punch hole 33 is narrower than the second punch hole 34 and has a longer shape in the height direction. As a result, substantially uniform bending rigidity can be obtained over the entire circumference.

  15 and 16 show another embodiment of a clip according to the present invention. Note that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the clip 10a in this embodiment, rib-like projections 22a and 22a project between a pair of projecting pieces 22 and 22 facing the narrow elastic locking pieces 24b and 24b of the shaft portion 21, respectively. . Referring also to FIG. 15, each rib-like protrusion 22 a extends along the axial direction at a predetermined height from the lower surface of the head 11, and extends from the axial intermediate position of the shaft portion 21 toward the tip of the shaft portion 21. Thus, a tapered surface 22b whose height is gradually lowered is formed.

  According to this embodiment, in the state where the clip 10a is attached to the attachment hole 20 of the attachment panel 19, a large external force is applied in the direction in which the narrow elastic locking pieces 24b, 24b are bent with respect to the locking leg 12. Even when it acts, the inner periphery of the elastic locking piece 24b abuts against the rib-shaped protrusion 22a and further bending is restricted, so that the mounting hole of the clip 10 due to breakage of the elastic locking piece 24b or extreme deformation The disconnection from 20 can be prevented.

It is a perspective view which shows one Embodiment of the clip of this invention. It is a front view of the clip. It is a right view of the same clip. It is a top view of the clip. It is a bottom view of the clip. FIG. 5 is a cross-sectional view taken along the line A-A ′ in FIG. 4. FIG. 5 is a cross-sectional view taken along the line B-B ′ in FIG. 4. FIG. 3 is a cross-sectional view taken along the line C-C ′ in FIG. 2. It is explanatory drawing which shows the cross section which cut the latching leg of the clip at various heights. It is explanatory drawing which shows the metal mold | die for manufacturing the same clip. It is sectional drawing which shows the state which fixed the attachment member to the attachment hole of the attachment panel using the clip. It is sectional drawing which shows the bending state at the time of inserting the clip into the attachment hole of an attachment panel. It is sectional drawing which shows a bending state when a load is applied to the direction of a wide elastic locking piece in the attachment state of the clip. It is sectional drawing which shows a bending state when a load is applied to the direction of a narrow elastic locking piece in the attachment state of the clip. It is sectional drawing which shows other embodiment of the clip of this invention. FIG. 16 is a cross-sectional view taken along the line D-D ′ in FIG. 15.

Explanation of symbols

10, 10a Clip 11 Head 12 Locking leg 19 Panel 20 Mounting hole 21 Shaft portion 22 Projection piece 22a Rib-shaped protrusion 23 Connecting rib 24a Elastic locking piece (wide)
24b Elastic locking piece (narrow)

Claims (6)

A synthetic resin clip that has a head and a locking leg suspended from the lower surface of the head, and is fixed to the panel by inserting the locking leg into the mounting hole of the panel In
The locking leg is a shaft portion suspended from the center of the lower surface of the head,
The outer periphery of the shaft is arranged at a predetermined interval, the upper end is connected to the lower surface of the head, and the two sides of the lower end are connected to the shaft through two connecting ribs extending from the shaft. With three or more pieces of elastic locking pieces connected,
The outer periphery of the shaft portion excluding the connecting portion with the elastic locking piece is located inside the inner periphery of the elastic locking piece, and when the locking leg is inserted through the mounting hole of the panel, The clip characterized by the above-mentioned. The clip is comprised so that the inner periphery of an elastic locking piece may not contact | abut to the said shaft part outer periphery.   The shaft portion is formed with a projecting piece positioned substantially between the elastic locking pieces along the axial direction, and the upper end of the projecting piece is connected to the lower surface of the head, The clip according to claim 1, wherein a lower end forms the connecting rib, and an outer periphery of the protruding piece excluding the connecting rib is positioned on an inner side than an inner periphery of the elastic locking piece.   The elastic locking pieces are composed of four pieces arranged at an interval of approximately 90 degrees with respect to the shaft portion, and the pair of opposing elastic locking pieces is more than the other opposing elastic locking pieces. 3. The clip according to claim 2, wherein the clip is formed to be wide and thin, and an angle between the pair of protruding pieces facing both sides of the wide elastic locking piece is an acute angle.   Four outer perforations defined by the elastic locking piece, the connecting rib, and the shaft portion are formed on the outer periphery of the lower end of the locking leg. 4. The clip according to claim 3, wherein a portion positioned below the elastic locking piece is narrower and extends longer than a portion positioned below the narrow elastic locking piece.   The clip according to claim 3 or 4, wherein a rib-like projection for restricting excessive deflection of the projecting piece is formed between the projecting pieces of the shaft portion facing the narrow elastic locking piece.   The clip according to any one of claims 1 to 5, wherein an upper end portion of each elastic locking piece is gradually narrowed and connected to a lower surface of the head.

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