JP2015001236A - Clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip which can easily insert a leg portion even if an installation hole has a small diameter.SOLUTION: A clip 10 is equipped with a head portion 20 engaged on a front side of an installation hole 3, and a leg portion 30 inserted in the installation hole 3 and engaged with a back side of the installation hole 3. The leg portion 30 has a shaft hole 31 formed along an axis and opened at a leg portion tip end. A plurality of slits 33 communicating with the shaft hole 31 from the outside of the leg portion is formed. A pair of first columnar pieces 35 and 35 oppositely disposed, and a pair of second columnar pieces 37 and 37 oppositely disposed so as to intersect those are provided through the slits 33. An annular portion 39 is formed, which is coupled to tip ends of the pair of the first columnar pieces 35 and 35 and a pair of second columnar pieces 37 and 37.

Description

  The present invention relates to a clip that is inserted into a mounting hole and fixed.

  For example, a mounting hole is formed in a body panel or the like of an automobile, and a trim board or the like is attached to the body panel or the like via a clip that is inserted into the mounting hole and fixed.

  As a conventional clip of this type, the following Patent Document 1 includes a head and a leg, and the leg is composed of four legs hanging independently from the head, and each leg is an intermediate part. It spreads in the outer diameter direction, and is integrally formed so as to form a tapered leg at its end, and each leg is formed in the same shape in a cross section near the middle portion, and the leg The clips are symmetrically formed with respect to the central axis of each other and are equally spaced from each other.

  Further, the tip portions of the four legs are connected to each other by a closed curved end having no holes. Further, the cross section of each leg has a substantially triangular shape in which a corner portion is arranged on the leg axial center side and the diameter is increased toward the outer diameter direction, and the legs are overlapped with each other in an expanded state in which the diameter is increased. The position is not suitable. Then, the head is engaged with the front surface of the mounting hole, and the clip is attached to the mounting hole by engaging the intermediate portion of the four leg pieces, which is widened in the outer diameter direction, with the rear surface of the mounting hole. Yes.

Japanese Utility Model Publication No. 4-105615

  By the way, there is a case where it is desired to insert a clip into a mounting hole having a small inner diameter. However, in the case of the clip of the above-mentioned Patent Document 1, since the tip portions of the four legs are connected to the closed curved end portions having no holes, they are inserted into the small-diameter mounting holes as described above. In addition, the four legs are difficult to bend and the insertion resistance is large.

  Accordingly, an object of the present invention is to provide a clip in which a leg can be easily inserted even if the mounting hole has a small diameter.

  In order to achieve the above object, the clip of the present invention includes a head that engages with the front side of the mounting hole of the mounted member, and extends from the back side of the head and is inserted into the mounting hole. A leg portion that engages with the back side, and the leg portion has an axial hole that is formed along an axis of the leg portion and that opens at the tip of the leg portion, and communicates with the axial hole from the outside of the leg portion. A plurality of slits are formed, and a pair of first columnar pieces arranged to face each other through the slits, and a pair of oppositely arranged so as to intersect the pair of first columnar pieces The second columnar piece is provided, and at least one of the pair of columnar pieces is formed with an engaging portion that engages with the back side of the mounting hole, and the pair of first columnar pieces and the pair of first columnar pieces are provided. An annular portion connected to the tip of the two columnar pieces is formed.

  In the clip of the present invention, it is preferable that the shape of the shaft hole when viewed from the axial center direction of the leg portion is a circular shape.

  In the clip of the present invention, the pair of first columnar pieces and the pair of second columnar pieces are in a free state of the pair of second columnar pieces between the pair of first columnar pieces. It is preferable that the portions are arranged so as to enter.

  In the clip of the present invention, when the legs are inserted into the mounting holes and the pair of first columnar pieces and the pair of second columnar pieces are reduced in diameter, the inner surfaces of the pair of first columnar pieces. On the side, recesses into which the pair of second columnar pieces enter are formed on both sides in the width direction, and ribs extending along the axial direction of the first columnar pieces are formed between these recesses. The rib is preferably configured to be located outside the shaft hole in a free state of the pair of first columnar pieces and the pair of second columnar pieces.

  In the clip of the present invention, the first columnar piece and / or the second columnar piece has a widthwise side surface in a cross section perpendicular to the axis of the leg portion, which is parallel or wide toward the inside of the leg portion. It is preferable that it is formed so that.

  In the clip of the present invention, it is preferable that the slit is formed so as not to pass through the center of the leg portion from a direction perpendicular to a plane passing through the center of the pair of first columnar pieces.

  According to the clip of the present invention, the leg portion has an axial hole formed along its axis and opened at the tip of the leg portion, and the pair of first columnar pieces and the pair of second columnar pieces are Since the front ends thereof are connected to the annular portion, when the leg portions are inserted into the mounting holes, the leg portions end in an annular shape along with the bending of the pair of first columnar pieces and / or the pair of second columnar pieces. Since the portion is also bent, the pair of first columnar pieces and / or the pair of second columnar pieces can be easily bent, and the leg portion can be easily inserted even if the mounting hole has a small diameter.

It is a perspective view which shows one Embodiment of the clip of this invention. It is the perspective view seen from the direction different from FIG. 1 of the clip. It is a front view of the clip. It is a side view of the clip. It is a bottom view of the clip. It is sectional drawing in the AA arrow line of FIG. It is sectional drawing in the BB arrow line of FIG. It is sectional drawing in the CC arrow line of FIG. In FIG. 8, it is sectional drawing which shows the state which a pair of 1st columnar piece and a pair of 2nd columnar piece bent. It is explanatory drawing which shows the state which attached the attachment member to the to-be-attached member via the clip of this invention.

  Hereinafter, an embodiment of a clip of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 10, the clip 10 is inserted into a mounting hole 3 formed in the mounted member 1 and used to mount the mounting member 5 on the mounted member 1, for example. Can do. Examples of the mounting member 5 include a trim board, a garnish, an assist grip, a bumper, and a lamp. Examples of the mounted member 1 include a vehicle body panel and a vehicle body frame, but are not limited thereto. It is not something. The attachment member 5 is provided with a clip mounting attachment seat 7 having a frame shape and having an insertion hole 7a at the bottom thereof (see FIG. 10). Moreover, this clip may be used not only for the above-mentioned use but also for closing the mounting hole, and is not particularly limited.

  The clip 10 has a head 20 that engages with the front side of the mounting hole 3 and a leg 30 that extends from the back side of the head 20 and is inserted into the mounting hole 3 to engage with the back side. And.

  The head 20 in this embodiment extends from a columnar neck portion 21, a disk-shaped first flange portion 23 extending from the outer periphery of the neck portion 21, and an outer periphery of the neck portion 21 at a predetermined axial position. A thin disc-shaped second flange portion 25 and a third flange portion 27 that is connected to the back side of the second flange portion 25 and spreads in a skirt shape obliquely outward toward the leg portion 30 side. Has been. Then, the clip 21 is attached to the mounting seat 7 by inserting the neck portion 21 of the head 20 into the insertion hole 7a of the mounting seat 7 and sandwiching the mounting seat 7 between the first flange portion 23 and the second flange portion 25. (See FIG. 10). Note that the structure of the head is not limited to the above-described mode, and may be any shape that engages with the front side periphery of the mounting hole formed in the predetermined member.

  On the other hand, the leg part 30 is formed along the axis C (refer FIG. 6) of the leg part 30, and has the axial hole 31 opened by the leg part front-end | tip (refer FIG. 2 and FIGS. 5-8). As shown in FIG. 8, the shaft hole 31 of this embodiment has a circular shape when viewed from the axial center direction of the leg portion 30. The shaft hole 31 can be formed by a pin P (see FIG. 6) that slides along the axial direction of the leg portion 30. The shaft hole 31 may be not only circular but also rectangular or elliptical, and is not particularly limited. In the present invention, the “shaft hole” means a hollow hole shape extending from the leg tip to the head, and does not include a solid shaft or column.

  In addition, a plurality of, in this embodiment, four slits 33 are formed from the outside of the leg 30 so as to communicate with the shaft hole 31, and a pair of first slits arranged opposite to each other via the slit 33. A single columnar piece 35, 35 and a pair of second columnar pieces 37, 37 disposed so as to be substantially orthogonal to the pair of first columnar pieces 35, 35 are formed.

  As shown in FIG. 8, in this embodiment, these slits 33 form the axis C of the leg 30 from a direction perpendicular to the plane F passing through the centers of the pair of first columnar pieces 35, 35. It is formed so as not to pass. The slits 33 are formed by molds M1 and M2 that slide in a direction perpendicular to a plane F passing through the centers of the pair of first columnar pieces 35 and 35.

  In this embodiment, the pair of first columnar pieces 35 and 35 and the pair of second columnar pieces 37 and 37 are disposed at positions substantially orthogonal to each other (see FIG. 8). The pair of second columnar pieces 37, 37 may intersect the columnar pieces 35, 35 at an angle other than 90 °, and is not particularly limited.

  The pair of first columnar pieces 35 and 35 and the pair of second columnar pieces 37 and 37 are pressed against the inner periphery of the attachment hole 3 when the leg portion 30 is inserted into the attachment hole 3, so that the shaft It is configured to bend toward the inside of the leg through the hole 31 and bend toward the inside of the leg even when a lateral load is applied to the leg 30 with the clip 10 attached to the attachment hole 3. (See FIGS. 8 to 10). The “lateral load” acting on the leg 30 means a load acting in a direction intersecting the axial direction of the leg 30 (the lateral load in the following description has the same meaning). .

  In this embodiment, both the pair of first columnar pieces 35, 35 and the pair of second columnar pieces 37, 37 are bent when inserted into the attachment hole 3, but on the back side of the attachment hole 3. It suffices that at least one of the pair of columnar pieces with the engaging portion to be engaged be bent.

  As shown in FIGS. 1 and 2, the base ends of the first columnar pieces 35 and the second columnar pieces 37 are connected to the back surface of the third flange portion 25 of the head 20. Further, the clip 10 is formed with an annular portion 39 connected to the tips of the pair of first columnar pieces 35 and 35 and the pair of second columnar pieces 37 and 37. That is, the pair of first columnar pieces 35 and 35 and the pair of second columnar pieces 37 and 37 are connected at their tips to the annular portion 39, thereby opening the shaft hole 31 at the tips of the legs. It has a structure (see FIGS. 2, 6, and 7). The annular portion 39 has a tapered outer periphery at the tip.

  Further, on the outer surface of the intermediate portion (between the distal end and the base end) of each first columnar piece 35 and each second columnar piece 37, stepped engaging portions 35a that engage with the rear side periphery of the mounting hole 3 are provided. 37a is formed, and tapered surfaces 35b and 37b that gradually decrease in height toward the distal ends of the legs are formed via the engaging portions 35a and 37a. In addition, the engaging part should just be formed in the outer side of a pair of columnar piece at least one.

  As shown in FIGS. 1, 2, 5, and 8, each of the first columnar pieces 35 and each second columnar piece 37 has an outer surface shape that is rounded in an arc shape. In addition, each second columnar piece 37 is formed to be narrower than each first columnar piece 35 and has a shape with a greater depth inward of the legs than the first columnar piece 35 (FIG. 8). reference).

  As shown in FIG. 8, both side surfaces 37c, 37c in the width direction in the cross section (transverse cross section) perpendicular to the leg axis C of each second columnar piece 37 gradually become wider toward the inside of the leg. It is formed as follows. Further, the inner surface of each second columnar piece 37 has an arcuate shape corresponding to the circularly shaped shaft hole 31, and protrudes toward the inner side of the leg on both sides in the width direction. Portions 38 are provided.

  And in the free state of a pair of 1st columnar piece 35,35 and a pair of 2nd columnar piece 37,37, the said protrusion part 38 of each 2nd columnar piece 37 between a pair of 1st columnar pieces 35,35. , 38 (see FIG. 8). In this embodiment, the protruding portion 38 constitutes “a part of the second columnar piece” in the present invention that enters between the pair of first columnar pieces.

  The free state of the pair of first columnar pieces 35 and 35 and the pair of second columnar pieces 37 and 37 is not inserted into the mounting hole 3 of the mounted member 1, and the inside of the mounting hole 3 It means a state where it is not bent by the pressing force from the circumference.

  On the other hand, as shown in FIG. 8, both side surfaces 35c, 35c in the width direction in the cross section (transverse cross section) perpendicular to the leg axis C of each first columnar piece 35 are formed substantially parallel to each other. . Further, on the inner surface side of each first columnar piece 35 and on both sides in the width direction, concave portions 41 and 41 into which the protruding portions 38 and 38 of the second columnar piece 35 enter are formed. Between 41, ribs 43 extending along the axial direction of the first columnar piece 35 are formed.

  As shown in FIGS. 6 and 7, the recesses 41, 41 and the rib 43 are provided in an intermediate portion of the first columnar piece 35 between the distal end and the proximal end in the axial direction. In addition, the protruding portion 38 of the second columnar piece 37 that has entered the recess 41 of the first columnar piece 35 is the first when the clip 10 is attached to the attachment hole 3 and a lateral load is applied to the leg portion 30. It abuts on the rib 43 of the single columnar piece 35 to restrict further bending (see FIG. 9).

  In the above-described embodiment, both side surfaces 35c, 35c in the width direction of the first columnar piece 35 are formed substantially in parallel, but may be formed so as to gradually become wider toward the inside of the leg portion. The both side surfaces 37c and 37c in the width direction of the second columnar piece 37 are gradually formed wider toward the inner side of the leg portion, but may be formed substantially in parallel.

  Next, a method of using the clip 10 having the above configuration will be described.

  First, the neck portion 21 of the head portion 20 of the clip 10 is inserted into the insertion hole 7 a of the attachment seat 7 of the attachment member 5, and the attachment seat 7 is inserted by the first flange portion 23 and the second flange portion 25 of the head portion 20. The clip 10 is attached to the mounting seat 7 by sandwiching.

  In this state, the leg portion 30 of the clip 10 is inserted from the front end side of the mounting hole 3 of the mounted member 1 from the front end portion side.

  Then, the annular portion 39 of the leg portion 30 is inserted into the mounting hole 3, and then the tapered surfaces 35 b and 37 b are pressed by the inner periphery of the mounting hole 3, so that the pair of first columnar pieces 35 and 35 and the pair of first The two columnar pieces 37 and 37 are pushed in while bending toward the inside of the leg. At this time, the protruding portions 38, 38 of the second columnar pieces 37, 37 enter the recesses 41, 41 of the first columnar piece 35, while the pair of first columnar pieces 35, 35 and the pair of second columnar pieces 37, 37 bends.

  Thereafter, when the stepped engagement portions 35a, 37a come out from the back side of the mounting hole 3, the pair of first columnar pieces 35, 35 and the pair of second columnar pieces 37, 37 are elastically restored, and each engagement portion 35a, 37a engages with the back side periphery of the attachment hole 3, and the third flange portion 25 of the head 20 elastically engages with the front side periphery of the attachment hole 3, so that the clip 10 is attached to the attachment hole 3. The attachment member 5 can be attached to the attached member 1 through the clip 10 (see FIG. 10).

  In this clip 10, the leg 30 has a shaft hole 31 formed along the leg axis C and opened at the tip of the leg, and the pair of first columnar pieces 35, 35 and The pair of second columnar pieces 37, 37 are connected to the annular portion 39 at the leg tip. That is, by having the shaft hole 31 opened at the tip of the leg, the tip of the first columnar piece 35 and the second columnar piece 37 is allowed to bend inwardly of the leg, and as described above, the mounting hole 3 When the leg 30 is inserted, the pair of first columnar pieces 35 and 35 and / or the pair of second columnar pieces 37 and 37 bend, and the annular portion 39 at the tip of the leg also bends. The columnar pieces 35 and 35 and / or the pair of second columnar pieces 37 and 37 can be easily bent toward the inside of the leg portion, and the leg portion 30 can be smoothly inserted even if the mounting hole 3 has a small diameter. it can.

  Further, in this embodiment, as shown in FIG. 9, when the leg portion 30 is inserted into the mounting hole 3, the pair of first columnar pieces 35, 35 and the pair of second columnar pieces 37, 37 are reduced in diameter. Further, since the protruding portions 38, 38 of the second columnar pieces 37, 37 enter the recesses 41, 41 provided on both sides of the inner surface of the first columnar piece 35, a pair of first columnar pieces 35, 35 are provided. A large bending allowance can be ensured, and the leg portion 30 can be inserted into the mounting hole 3 more smoothly.

  In the clip 10, the protruding portions 38, 38 of the pair of second columnar pieces 37, 37 enter between the pair of first columnar pieces 35, 35 in the free state of the columnar pieces 35, 37. (See FIG. 8), the cross-sectional area of the pair of second columnar pieces 37, 37 is increased to increase the inward bending strength of each second columnar piece 37, and the pair of first columnar pieces 37 The amount of bending inward of the pieces 35, 35 can be regulated by the pair of second columnar pieces 37, 37, and the bending strength to the inside of the first columnar piece 35 can be increased. The attachment strength with respect to 3 can be increased.

  Further, in this embodiment, as shown in FIG. 8, the shape of the shaft hole 31 formed in the leg portion 30 when viewed from the axial center direction of the leg portion is a circular shape. The inner surface shape of the projecting portions 38, 38 entering between the pair of first columnar pieces 35, 35 of the second columnar pieces 37, 37 can be an arcuate concave surface, and ribs by the projecting portions 38, 38 on both sides. The rigidity of each second columnar piece 37 can be increased by the effect and the stress concentration relaxation effect by the cylindrical surface.

  Further, as shown in FIG. 6, the shaft hole 31 of the leg portion 30 of the clip 10 is formed by a pin P that slides in the axial direction of the leg portion 30. Since the shape when viewed from the axial direction of 30 is a circular shape, the pin P has a circular cross section, the cross sectional area of the pin P can be ensured as large as possible, and its durability can be enhanced.

  In this embodiment, as shown in FIG. 9, the ribs 43 extending along the axial direction of the first columnar piece 35 are formed by the pair of first columnar pieces 35, 35 and the pair of second columnar pieces 37, 37. The pin P (see FIG. 6) can be easily pulled out along the axial direction of the leg portion 30 after the clip molding, because it is configured to be positioned outside the shaft hole 31 in a free state. The moldability of the clip 10 can be improved.

  Further, in this embodiment, the width direction side surfaces 35c, 35c in the cross section of the first columnar piece 35 are formed substantially in parallel, and the width direction side surfaces 37c, 37c in the cross section of the second columnar piece 37 are legged. Since the width gradually increases toward the inside of the section, the cross-sectional areas of the first columnar pieces 35 and the second columnar pieces 37 can be ensured as large as possible to increase the rigidity.

  By the way, in a state where the clip 10 is attached to the attachment hole 3, for example, an external force or an impact force acts on the attachment member 5, and a lateral load may act on the leg 30.

  At this time, in the clip 10, the ribs 43 extending in the axial direction are formed between the recesses 41, 41 on the inner surface side of each first columnar piece 35. 9, as shown in FIG. 9, the protruding portions 38, 38 of the second columnar pieces 37 that have entered the recess 41 abut against the ribs 43, and more than that of the pair of second columnar pieces 37, 37. The bending can be restricted, and the clip 10 can be held firmly attached to the attachment hole 3. Further, even if the concave portion 41 into which the protruding portion 38 of the second columnar piece 37 enters is provided on the inner surface side of each first columnar piece 35, each first columnar piece 35 is formed by the rib 43 formed between the concave portions 41 and 41. Strength can be maintained.

  By the way, in this embodiment, as shown in FIG. 8, a pair of 1st columnar pieces 35 and 35 and a pair of 2nd columnar pieces 37 and 37 are separated into a pair. Since it is formed so as not to pass through the axis C of the leg 30 from a direction perpendicular to the plane F passing through the centers of the columnar pieces 35, 35, it passes through the centers of the pair of first columnar pieces 35, 35. The slits 33 and 33 can be formed by the molds M1 and M2 that slide in a direction perpendicular to the surface F. Therefore, the mold structure of the molds M1 and M2 can be made relatively simple, and both the width direction both side surfaces 35c and 35c of the first columnar piece 35 and the width direction both side surfaces 37c and 37c of the second columnar piece 37 are It can be easily formed into a substantially parallel shape or a shape that gradually becomes wider toward the inside of the leg.

3 mounting hole 10 clip 20 head 30 leg 31 shaft hole 33 slit 35 first columnar piece 35a engaging portion 37 second columnar piece 37a engaging portion 39 annular portion 41, 41 recess 43 rib

Claims (6)

A head that engages the front side of the mounting hole of the mounted member, and a leg that extends from the back side of the head and is inserted into the mounting hole and engages the back side of the head.
The leg portion is formed along the axis thereof, and has a shaft hole opened at the tip of the leg portion,
A plurality of slits communicating with the shaft hole from the outside of the leg portion are formed, and a pair of first columnar pieces arranged to face each other through the slits and the pair of first columnar pieces intersect with each other. As described above, a pair of second columnar pieces arranged opposite to each other is provided, and at least one of the pair of columnar pieces is formed with an engaging portion that engages with the back side of the mounting hole,
The clip characterized by the annular part connected with the front-end | tip of said pair of 1st columnar piece and said pair of 2nd columnar piece being formed.   The clip according to claim 1, wherein a shape of the shaft hole when viewed from the axial direction of the leg portion is a circular shape.   The pair of first columnar pieces and the pair of second columnar pieces are arranged such that a part of the pair of second columnar pieces enters between the pair of first columnar pieces in their free state. The clip according to claim 1 or 2.   When the leg portion is inserted into the mounting hole and the pair of first columnar pieces and the pair of second columnar pieces are reduced in diameter, the inner surface side of the pair of first columnar pieces has a width direction thereof. Recesses into which the pair of second columnar pieces enter are formed on both sides, and ribs extending along the axial direction of the first columnar pieces are formed between these recesses, The clip according to any one of claims 1 to 3, wherein the clip is configured to be positioned outside the shaft hole in a free state of the pair of first columnar pieces and the pair of second columnar pieces.   The first columnar piece and / or the second columnar piece is formed such that both side surfaces in the width direction in a cross section perpendicular to the axis of the leg portion are parallel or wide toward the inside of the leg portion. The clip according to any one of claims 1 to 4.   The said slit is formed so that it may not pass through the center of the said leg part from the direction perpendicular | vertical with respect to the surface which passes along the center of a pair of said 1st columnar piece. clip.