JP2013079726A - Clip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the intrusion of a foreign matter such as gravel into an insertion hole of a grommet for particularly inserting a pin, related to a clip.SOLUTION: The clip includes the pin 40 and the grommet 50 having the insertion hole into which the pin 40 can be inserted and forming a plurality of leg pieces 92 by a slit 91 formed in the length direction of a leg 90. In the clip 10, a part of the grommet 50 can be widened by inserting the pin 40 into the insertion hole. At least one of the pin 40 and the grommet 50 (for example, the pin 40) is provided with a preventive part 110 for preventing the intrusion of the foreign matter such as the gravel. The preventive part 110 may be positioned in a part of an insertion leg 60 of the pin 40, or a part of the leg piece 92 of the grommet 50, or may be extended along the length direction of the slit from the under surface of a flange of the grommet.

Description

  The present invention relates to a clip, and in particular, can prevent entry of foreign matter such as gravel into an insertion hole of a grommet into which a pin is inserted.

  Conventionally, a pin has an insertion hole into which the pin can be inserted, and a grommet in which a plurality of leg pieces are formed by a slit provided in the length direction of the leg, and the grommet is inserted into the insertion hole of the pin. A clip that can be partially expanded is known (see, for example, paragraph number “0008” in Patent Document 1 and FIGS. 1 to 6, paragraph number “0015” in Patent Document 2 and FIGS. 1 to 4).

JP 2006-105359 A JP 2010-7687

However, when the conventional clip described above is used for fastening a bumper of an automobile, for example, there is a possibility that gravel, mud, or the like may enter between the pin and the grommet from the outside.
For this reason, the conventional clip described above has a problem that it is difficult to release the fastening state when gravel or mud enters.
That is, when a foreign object such as gravel enters between the pin and the grommet, the frictional resistance between them increases, or the foreign object such as gravel acts as a kind of “wedge” to pull out the pin. There was a risk that it would be impossible.

Accordingly, each invention described in each claim has been made in view of the problems of the conventional techniques described above, and the object thereof is as follows.
(Claim 1)
The object of the present invention is as follows.
That is, in the invention described in claim 1, by providing a prevention part that prevents entry of foreign matter such as gravel on at least one of the pin and the grommet, gravel into the insertion hole of the grommet for inserting the pin is provided. This is designed to prevent the entry of foreign matter.
(Claim 2)
The second aspect of the invention has the following object in addition to the object of the first aspect of the invention.

That is, the invention according to claim 2 is configured such that the prevention portion is positioned on a part of the insertion leg of the pin and extends along the length direction of the slit, thereby preventing foreign matter such as gravel from entering the slit. It can be prevented.
(Claim 3)
The invention described in claim 3 has the following object in addition to the object of the invention described in claim 1 described above.

That is, the invention according to claim 3 prevents the entry of foreign matter such as gravel from the slit by positioning the prevention portion at a part of the leg piece of the grommet and extending in the length direction of the slit. It is something that can be done.
(Claim 4)
The fourth aspect of the invention has the following object in addition to the object of the first aspect of the invention.

That is, the invention according to claim 4 prevents the entry of foreign matter such as gravel from the slit by extending the prevention portion from the lower surface of the flange of the grommet along the length direction of the slit. It is something that can be done.
(Claim 5)
The invention described in claim 5 has the following object in addition to the object of the invention described in claim 1 or claim 2.

That is, the invention according to claim 5 is configured such that the prevention portion is a wall portion extended to the insertion leg of the pin, so that entry of foreign matter such as gravel can be prevented by the wall portion. Is.
(Claim 6)
The invention described in claim 6 has the following points in addition to the object of the invention described in any one of claims 1, 2, and 5.

That is, in the invention according to claim 6, by providing the pin insertion leg with a wing extending outward from the center leg, the wing can prevent entry of foreign matter such as gravel. It is a thing.
(Claim 7)
The invention described in claim 7 has the following object in addition to the object of the invention described in claim 6.

That is, the invention according to claim 7 can prevent the entry of foreign matter such as gravel from the middle of the length of the central leg by positioning the wing part in the middle of the length of the central leg. It is a thing.
(Claim 8)
The invention described in claim 8 has the following object in addition to the object of the invention described in claim 6 or claim 7.

In other words, the invention according to claim 8 is configured such that entry of foreign matter such as gravel from the tip of the central leg can be prevented by positioning the wing at the tip of the central leg. is there.
(Claim 9)
The invention described in claim 9 has the following object in addition to the object of the invention described in any one of claims 1-8.

That is, in the invention according to claim 9, the inner peripheral surface of the leg piece of the grommet and the outer peripheral surface of the insertion leg of the pin are brought into line contact along the length direction of the leg portion, so that when the pin is moved, The frictional resistance can be reduced.
(Claim 10)
The invention described in claim 10 has the following object in addition to the object of the invention described in claim 9.

  That is, the invention according to claim 10 reduces the frictional resistance during the movement of the pin by making the inner peripheral surface of the grommet leg piece a flat surface and the outer peripheral surface of the pin insertion leg as a projecting surface. It is made to be able to.

Each invention described in each claim has been made to achieve each of the above-mentioned objects, and features of each invention will be described below using embodiments of the invention shown in the drawings. .
In addition, the code | symbol in parenthesis shows the code | symbol used in embodiment of invention, and does not limit the technical scope of this invention.
Also, the drawing numbers indicate the drawing numbers used in the embodiments of the invention and do not limit the technical scope of the present invention.
(Claim 1)
The invention described in claim 1 is characterized by the following points.

First, as shown in FIG. 1, for example, a pin (40) and an insertion hole (51) into which the pin (40) can be inserted have a slit (91) provided in the length direction of the leg portion (90). ), And a grommet (50) in which a plurality of leg pieces (92) are formed.
Secondly, as shown in FIG. 2, for example, the grommet (50) is a clip (10) whose part can be expanded by inserting the pin (40) into the insertion hole (51).

Thirdly, at least one of the pin (40) and the grommet (50) (for example, the pin (40)) is provided with a prevention unit (110) for preventing the entry of foreign matter such as gravel as shown in FIG. ing.
In addition, although the prevention part (110) was provided in the pin (40), it is not limited to this, For example, as shown in FIG.20 and FIG.21, it is located in the grommet 50 side, or although not shown, 40 and grommet 50 may be positioned respectively.
(Claim 2)
The invention described in claim 2 is characterized by the following points in addition to the characteristics of the invention described in claim 1 described above.

That is, the prevention part (110) is located in a part of the insertion leg (60) of the pin (40) and extends along the length direction of the slit (91) as shown in FIG. .
(Claim 3)
The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1.

That is, as shown in FIG. 20 and FIG. 21, for example, the prevention part (200) is located at a part of the leg piece (92) of the grommet (50) and extends in the length direction of the slit (91). Yes.
(Claim 4)
The invention described in claim 4 is characterized by the following points in addition to the characteristics of the invention described in claim 1.

That is, although not shown, the prevention part is extended from the lower surface of the flange of the grommet along the length direction of the slit.
(Claim 5)
The invention described in claim 5 is characterized by the following points in addition to the features of the invention described in claim 1 or claim 2 described above.

That is, the prevention part (110) is a wall part (for example, the wing | blade part 111-118) extended in the insertion leg (60) of the pin (40), as shown, for example in FIG.
(Claim 6)
The invention described in claim 6 is characterized by the following points in addition to the characteristics of the invention described in any one of claims 1, 2, and 5.

That is, the insertion leg (60) of the pin (40) is provided with a central portion having contact portions (101, 102) that contact the inner periphery of the leg piece (92) of the grommet (50) as shown in FIGS. It consists of a leg (100) and wings (111 to 118) extending outward from the central leg (100).
(Claim 7)
The invention described in claim 7 has the following features in addition to the features of the invention described in claim 6.

That is, the wings (for example, the central wings 111 to 114) are located in the middle of the length of the center leg (100) as shown in FIG.
(Claim 8)
The invention described in claim 8 is characterized by the following points in addition to the characteristics of the invention described in claim 6 or 7.

That is, the wings (for example, the tip wings 115 to 118) are located at the tip of the central leg (100) as shown in FIG.
(Claim 9)
The invention described in claim 9 is characterized by the following points in addition to the characteristics of the invention described in any one of claims 1-8.

That is, the inner peripheral surface of the leg piece (92) of the grommet (50) and the outer peripheral surface of the insertion leg (60) of the pin (40) contacting the inner peripheral surface are not shown, but the leg (90) Line contact is made along the length direction.
(Claim 10)
The invention described in claim 10 has the following characteristics in addition to the characteristics of the invention described in claim 9.

  That is, the inner peripheral surface of the leg piece (92) of the grommet (50) is a flat surface (93) as shown in FIGS. 1 and 2, for example, and the outer peripheral surface of the insertion leg (60) of the pin (40) is For example, as shown in FIGS. 1 and 8, projecting surfaces (103, 104) projecting toward the flat surface (93) are used.

Since this invention is comprised as mentioned above, there exists an effect as described below.
(Claim 1)
According to invention of Claim 1, there exist the following effects.
That is, according to the invention described in claim 1, gravel into the insertion hole of the grommet into which the pin is inserted is provided by providing a prevention portion that prevents entry of foreign matter such as gravel on at least one of the pin and the grommet. It is possible to prevent entry of foreign matters such as.
(Claim 2)
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect is obtained.

That is, according to the second aspect of the present invention, the prevention portion is positioned on a part of the insertion leg of the pin and is extended along the length direction of the slit, so that foreign matter such as gravel from the slit can be removed. Ingress can be prevented.
(Claim 3)
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the following effect is obtained.

That is, according to the invention described in claim 3, the prevention part is positioned on a part of the leg piece of the grommet and extends in the length direction of the slit, thereby allowing foreign matter such as gravel to enter from the slit. Can be prevented.
(Claim 4)
According to the invention described in claim 4, in addition to the effect of the invention described in claim 1, the following effect is obtained.

That is, according to the fourth aspect of the present invention, the preventive portion extends from the lower surface of the flange of the grommet along the length direction of the slit, thereby preventing entry of foreign matter such as gravel from the slit. be able to.
(Claim 5)
According to the invention described in claim 5, in addition to the effect of the invention described in claim 1 or 2, the following effect is obtained.

That is, according to the fifth aspect of the present invention, the prevention portion is a wall portion extending from the insertion leg of the pin, so that the entry of foreign matter such as gravel can be prevented by the wall portion.
(Claim 6)
According to the invention described in claim 6, in addition to the effects of the invention described in any one of claims 1, 2, and 5, the following effects are provided.

That is, according to the invention described in claim 6, by providing the pin insertion leg with the wing portion extending outward from the center leg, the wing portion can prevent entry of foreign matter such as gravel. .
(Claim 7)
According to the invention described in claim 7, in addition to the effect of the invention described in claim 6, the following effect can be obtained.

That is, according to the invention described in claim 7, by positioning the wing part in the middle of the length of the central leg, it is possible to prevent the entry of foreign matter such as gravel from the middle of the length of the central leg. it can.
(Claim 8)
According to the invention described in claim 8, in addition to the effect of the invention described in claim 6 or 7, the following effect is obtained.

That is, according to the eighth aspect of the present invention, foreign matters such as gravel from the tip of the central leg can be prevented by positioning the wing at the tip of the central leg.
(Claim 9)
According to invention of Claim 9, in addition to the effect of the invention of any one of Claims 1-8, there exist the following effects.

That is, according to the ninth aspect of the present invention, the pin is moved by bringing the inner peripheral surface of the leg piece of the grommet and the outer peripheral surface of the insertion leg of the pin into line contact along the length direction of the leg portion. The frictional resistance at the time can be reduced.
(Claim 10)
According to the invention described in claim 10, in addition to the effect of the invention described in claim 9, the following effect is obtained.

  That is, according to the invention described in claim 10, the frictional resistance during movement of the pin is reduced by making the inner peripheral surface of the leg piece of the grommet a flat surface and the outer peripheral surface of the insertion leg of the pin as a projecting surface. Can be made.

It is a disassembled perspective view of a clip. It is sectional drawing of the attachment state of a clip. It is a perspective view of a pin. It is a front view of a pin. It is a bottom view of a pin. It is a side view of a pin. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is an enlarged view of the C part of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is the perspective view which looked at the grommet from the upper part. It is the perspective view which looked at the grommet from the lower part. It is a side view of the grommet which made one half a cross section. It is a bottom view of a grommet. It is a front view of the grommet which made one half a section. It is a perspective view of the clip temporarily fixed state. It is a front view of the clip of the temporarily fixed state which made the half a cross section. It is a top view of the clip of a temporary stop state. It is a front view of the clip of the temporarily fixed state which made the half a cross section. FIG. 9 is a diagram illustrating a prevention unit according to the second embodiment of this invention. It is explanatory drawing of the prevention part which shows the state corresponding to FIG. 20 and the leg part of the grommet expanded.

In FIG. 1, reference numeral 10 denotes a clip. As shown in FIG. 2, for example, a base 30 such as an automobile body is attached to a component 30 such as an under cover.
In addition, although the body of the motor vehicle is illustrated as the base 20 and the under cover is illustrated as the component 30, it is not limited to these.
As shown in FIG. 2, the base 20 is provided with a rectangular mounting hole 21 through which the clip 10 can be inserted and through the front and back surfaces. Further, the clip 30 can be inserted into the component 30, and a rectangular through-hole 31 is provided through the front and rear surfaces while aligning with the attachment hole 21.

As shown in FIG. 1, the clip 10 is roughly divided into the following parts.
The following (1) and (2) will be described later.
(1) Pin 40
(2) Grommet 50
The parts of the clip 10 are not limited to the above (1) and (2).
(Pin 40)
As shown in FIGS. 1 to 10, the pin 40 can be inserted into an insertion hole 51 of a grommet 50 described later. The pin 40 is integrally formed of a thermoplastic synthetic resin having appropriate rigidity and elasticity, for example, PBT (polybutylene terephthalate).

Specifically, as shown in FIGS. 1 to 10, the pin 40 includes the following units when roughly classified.
The following (1) and (2) will be described later.
(1) Insertion leg 60
(2) Head 70
In addition, each part of the pin 40 is not limited to the above (1) and (2).
(Grommet 50)
As shown in FIGS. 1, 2, and 11 to 15, the grommet 50 has an insertion hole 51 into which an insertion leg 60 to be described later of the pin 40 can be inserted, and is provided in the length direction of the leg 90 to be described later. A plurality of, for example, two leg pieces 92 are formed by the slits 91. As shown in FIG. 2, the grommet 50 can be partially expanded by inserting the insertion leg 60 into the insertion hole 51. Similar to the pin 40, the grommet 50 is integrally formed of a thermoplastic synthetic resin having appropriate rigidity and elasticity, for example, POM (polyacetal).

In addition, although two pieces were illustrated as the number of the leg pieces 92, it is not limited to this, You may form three or more.
Specifically, as shown in FIGS. 1 and 11 to 15, the grommet 50 includes the following parts when roughly classified.
The following (1) and (2) will be described later.

(1) Flange 80
(2) Leg 90
In addition, each part of the grommet 50 is not limited to the above (1) and (2).
(Insertion leg 60)
As shown in FIGS. 1 to 10, the insertion leg 60 can be inserted into an insertion hole 51 of a grommet 50 described later.

Specifically, as shown in FIGS. 1 to 10, the insertion leg 60 includes the following parts when roughly classified.
The following (1) and (2) will be described later.
(1) Central leg 100
(2) Prevention unit 110
In addition, each part of the insertion leg 60 is not limited to the above (1) and (2).
(Head 70)
As shown in FIGS. 1 to 6, 8, and 10, the head 70 projects from the end of the insertion leg 60, that is, from the upper end in FIG. 1, and its outer diameter is the inner diameter of the insertion hole 51 of the grommet 50 described later. It is set larger. Specifically, as shown in FIG. 5, the head 70 has a plane formed in an oval shape or an oval shape.

Although the head 70 is formed in an oval or oval shape on the plane, it is not limited to this.
(Flange 80)
As shown in FIGS. 1, 2, and 11 to 15, the flange 80 is formed with an insertion hole 51 into which the insertion leg 60 of the pin 40 can be inserted in the center, and the outer diameter is the inner diameter of the mounting hole 21 of the base 20. It is set larger.

Specifically, as shown in FIGS. 1 and 11 to 15, the flange 80 is formed in a substantially disk shape, and the insertion hole 51 is formed in a substantially rectangular shape that is long in the diameter direction.
Although the flange 80 is formed in a substantially disk shape and the insertion hole 51 is formed in a substantially rectangular shape, it is not limited to these.
Specifically, as shown in FIGS. 1, 2, and 11 to 15, the flange 80 includes the following parts in addition to the insertion hole 51.

In addition, each part of the flange 80 is not limited to following (1) and (2).
(1) Recess 81
As shown in FIGS. 11, 13, and 15, the recess 81 is a portion into which the head portion 70 of the pin 40 fits. The recess 81 is recessed in a substantially circular shape from the upper surface of the flange 80 around the insertion hole 51. As shown in FIG. 2, at the position where the lower surface of the head 70 is in contact with the bottom surface of the recess 81 (hereinafter referred to as “lock position”), the upper surface of the head 70 and an annular shape around the flange 80 are provided. The projecting edge portion is arranged to be substantially flush with each other.

(2) Recess 82
As shown in FIGS. 1, 11, 13, and 15, the recess 82 is not shown in the state where the head portion 70 of the pin 40 is fitted in the recess 81, but a screwdriver or the like is inserted to The head 70 is levitated from the bottom surface of the recess 81. As shown in FIGS. 1 and 11, the recess 82 is located at both ends in the longitudinal direction centering on the insertion hole 51, and is formed by denting the annular projecting edge around the recess 81. ing.

On the other hand, the insertion hole 51 includes the following parts as shown in FIGS.
In addition, each part of the insertion hole 51 is not limited to following (3) and (4).
(3) Slide protrusion 52
As shown in FIG. 14, the slide protrusion 52 projects into the insertion hole 51 and guides the insertion leg 60 of the pin 40 inserted into the insertion hole 51 so as to be slidable. The slide protrusion 52 protrudes in a semicircular cross section from at least one end portion of both end portions in the longitudinal direction of the insertion hole 51. The slide protrusion 52 fits into a slide groove 106 of the center leg 100 described later, and slides relatively along the slide groove 106 when the pin 40 is inserted.

(4) Temporary stop projection 53
As shown in FIG. 14, the temporary fixing protrusion 53 projects into the insertion hole 51 and temporarily fixes the insertion leg 60 of the pin 40 inserted into the insertion hole 51. There are a total of four temporary fixing projections 53 at the four corners of both end portions in the longitudinal direction of the insertion hole 51, and project in a semicircular cross section. The temporary fixing protrusion 53 fits into a temporary fixing groove 107 of the central leg 100, which will be described later, and temporarily fixes the central leg 100 in a state where it is inserted shallowly into the insertion hole 51 as shown in FIGS. Hereinafter, it is referred to as “temporary fixing position”).
(Leg 90)
As shown in FIGS. 1, 2, and 11 to 15, the leg portion 90 hangs down from the lower surface of the flange 80 and can be inserted into the mounting hole 21 of the base 20 and the through hole 31 of the component 30.

Specifically, as shown in FIGS. 1, 2, and 11 to 15, the leg 90 includes the following units.
In addition, each part of the leg part 90 is not limited to following (1)-(5).
(1) Slit 91
As shown in FIGS. 1, 2, 11, 12, 14, and 15, the slit 91 is provided in the length direction of the leg 90, and the leg 90 includes a plurality of, for example, two leg pieces. Divided into 92. Specifically, the slit 91 extends from the end surface of the distal end portion of the leg portion 90 toward the lower surface of the flange 80. The slit 91 is provided along the longitudinal direction of the insertion hole 51 of the flange 80 and faces the short side direction of the insertion hole 51.

Although the number of leg pieces 92 is exemplified as two, the present invention is not limited to this, and the number of leg pieces 92 can be increased to three or more by increasing the number of slits 91.
(2) Leg piece 92
As shown in FIGS. 1, 2, and 11 to 15, two leg pieces 92 are opposed to each other with the slit 91 interposed therebetween.

(3) Flat surface 93
As shown in FIGS. 1, 2, 12, 13, and 15, the flat surface 93 is formed on the inner peripheral surface of the leg piece 92, and is formed substantially vertically in the drawing.
Although not shown, the flat surface 93 abuts against projecting surfaces 103 and 104 of the insertion leg 60 of the pin 40 described later, and both are in line contact along the length direction of the leg 90.

In addition, as a configuration in which the inner peripheral surface of the leg piece 92 of the grommet 50 and the outer peripheral surface of the insertion leg 60 of the pin 40 contacting the inner peripheral surface are in line contact along the length direction of the leg portion 90, The flat surface 93 is not limited.
(4) Thick end 94
As shown in FIGS. 1, 2, 11, 12, and 15, the distal end thick portion 94 is located at the distal end portion of the leg piece 92 and protrudes toward the slit 91. The wall thickness is gradually increased toward the tip.

(5) Locking claw 95
As shown in FIGS. 2, 13, and 15, the locking claw 95 is located on the inner surface of the distal end thick portion 94 and protrudes toward the slit 91 in a substantially trapezoidal shape or a substantially triangular shape. The locking claw 95 includes an inclined surface inclined obliquely downward toward the slit 91, and a substantially horizontal lower surface in FIG.

As shown in FIG. 2, the locking claw 95 fits into a locking groove 105 (to be described later) of the pin 40 in the locked position, and locks the pin 40 in the locked position.
(Center leg 100)
The center leg 100 contacts the inner periphery of the leg piece 90 of the grommet 50 as shown in FIGS. The center leg 100 is formed in a plate shape, has a lateral width equal to or smaller than the lateral width in the longitudinal direction of the insertion hole 51 of the flange 80, for example, substantially equal lateral width, and is equal to or smaller than the lateral width before and after the longitudinal direction of the insertion hole 51, for example, thinner than the lateral width. It has a thickness.

Specifically, as shown in FIGS. 1 to 10, the central leg 100 includes the following units.
In addition, each part of the center leg 100 is not limited to following (1)-(5).
(1) First and second contact portions 101, 102
As shown in FIGS. 1, 3, 5 to 8, and 10, the first and second contact portions 101 and 102 are located on the front and back surfaces of the central leg 100 in the thickness direction, and the leg pieces of the grommet 50 It is in contact with the inner periphery of 92, that is, the flat surface 93 and the tip thick portion 94.

(2) First and second projecting surfaces 103 and 104
As shown in FIGS. 1, 3, 4, 6, and 8, the first and second projecting surfaces 103 and 104 are positioned at the first and second contact portions 101 and 102, respectively, and the leg pieces 92 of the grommet 50. It protrudes toward the flat surface 93. As shown in FIG. 8, the first and second projecting surfaces 103 and 104 are located approximately at the center in the width direction of the central leg 100 and project in a substantially semicircular cross section. Further, the first and second projecting surfaces 103 and 104 extend in the vertical direction in FIGS. 1, 3, 4 and 6 along the length direction of the central leg 100.

Although not shown, the first and second projecting surfaces 103 and 104 are in contact with the flat surface 93 of the leg piece 92 of the grommet 50, and both are in line contact along the length direction of the leg portion 90.
In addition, as a configuration in which the inner peripheral surface of the leg piece 92 of the grommet 50 and the outer peripheral surface of the insertion leg 60 of the pin 40 contacting the inner peripheral surface are in line contact along the length direction of the leg portion 90, It is not limited to the first and second projecting surfaces 103,104.

(3) Locking groove 105
As shown in FIGS. 1, 2, 6, 7, and 10, the locking groove 105 is located on the lower end side of the central leg 100, and the locking claw 95 of the grommet 50 is fitted into the locking groove 105. As shown in FIG. 10, the locking groove 105 is formed of an inclined surface that is recessed in a concave shape, and the upper edge portion is inclined downward toward the bottom, and the lower edge portion is a substantially horizontal lower surface in the drawing.

(4) Slide groove 106
As shown in FIGS. 4, 5, 7 and 8, the slide groove 106 is formed at at least one end of the both ends in the width direction of the central leg 100, and the slide projection 52 of the grommet 50 is fitted therein. . The slide groove 106 extends in the longitudinal direction of the central leg 100, that is, in the vertical direction in FIG.

(5) Temporary stop groove 107
As shown in FIGS. 1, 3, and 4, the temporary fixing groove 107 is located on the lower end side of the central leg 100, and the temporary fixing protrusion 53 of the grommet 50 is fitted into the temporary fixing groove 107. The temporary fixing groove 107 is formed between a central wing portion 111 and a tip wing portion 112, which will be described later, and is recessed in a substantially U shape.
(Prevention unit 110)
As shown in FIGS. 1, 3 to 6, 8, and 9, the prevention unit 110 is located on at least one of the pin 40 and the grommet 50, for example, on the insertion leg 60 of the pin 40, and foreign matter such as gravel. Is to prevent the entry of.

In addition, although the prevention part 110 was located in the pin 40, it is not limited to this, You may be located in the grommet 50 side, or may be located in the pin 40 and the grommet 50, respectively.
Specifically, the prevention unit 110 includes the following units as illustrated in FIGS. 1, 3 to 6, 8, and 9.
In addition, each part of the prevention part 110 is not limited to following (1) and (2), You may comprise the prevention part 110 from either (1) and (2).

(1) Central wings 111-114
As shown in FIGS. 1, 3 to 6, 8, and 9, the central wing portions 111 to 114 are located in the middle of the length of the central leg 100, and have a substantially wing shape outward from the central leg 100. It extends.
The central wing portions 111 to 114 function as wall portions of the prevention portion 110 that is extended to the insertion leg 60 of the pin 40. In addition, although the center wing | blade part 111-114 was illustrated as a wall part, it is not limited to these.

Specifically, as shown in FIG. 8, a total of four central wing portions 111 to 114 are provided at the four corners of the first and second abutting portions 101 and 102 of the central leg 100, and as a whole project in a substantially H-shaped cross section. ing.
Of the four central wings 111 to 114, the distance to the end face located outside the central wings 111 and 113, 112 and 114 facing the center leg 100 is the groove of the slit 91 of the grommet 50 More than the width, for example, longer than the groove width. Of the four central wings 111 to 114, the distance between the central wings 111 and 112, 113 and 114 facing each other across the first and second projecting surfaces 103 and 104 is greater than the lateral width of the leg piece 92, for example, It is made to substantially correspond to the width.

Although the number of the central wing portions 111 to 114 is four, the number is not limited to this, and the number of the central wing portions 111 to 114 may be a number that can block the release surface of the slit 91.
(2) Tip wings 115-118
As shown in FIGS. 1, 3 to 6, and 8, the tip wings 115 to 118 are located at the tip of the central leg 100 and extend outwardly from the central leg 100 in a substantially blade shape.

The tip wings 115 to 118, together with the central wings 111 to 114, function as a wall portion of the prevention unit 110 that extends from the insertion leg 60 of the pin 40. In addition, although the front wing | blade part 115-118 was illustrated as a wall part, it is not limited to these.
As shown in FIG. 5, a total of four tip wings 115 to 118 are provided at the four corners of the first and second contact portions 101, 102 of the central leg 100, and project as a whole in a substantially H-shaped cross section.

  The four tip wings 115 to 118 have a distance from the tip wings 115 and 117 facing away from the center leg 100 to the end face located outside the 116 and 118, and the groove width of the slit 91 of the grommet 50. For example, the length is set longer than the groove width. Of the four tip wings 115 to 118, the distance between the central wings 115 and 116, 117 and 118 facing each other across the first and second projecting surfaces 101 and 102 is equal to or greater than the lateral width of the leg piece 92. It is made to substantially correspond to the width.

In addition, although four pieces were illustrated as the number in the tip wings 115 to 118, the number is not limited to this, and it may be a number that can block the release surface of the slit 91.
(How to use clip 10)
Next, a method for using the clip 10 having the above-described configuration will be described.
First, as shown in FIGS. 16-19, the insertion leg 60 of the pin 40 is inserted according to the insertion hole 51 of the grommet 50, and it is set as a temporary fix | stop state.

Next, the part 30 is attached to the base 20 as shown in FIG.
Although the clip 10 is temporarily fixed, when attaching the component 30, the grommet 50 may be attached to the base 20 and the component 30 first, and the pin 40 may be inserted last.
First, as shown in FIG. 2, the base 20 and the component 30 are overlapped, and the mounting holes 21 and the through holes 31 of both are aligned.

Next, the leg portion 90 of the grommet 50 in the temporarily fixed state is inserted from the mounting hole 21 side of the base 20 toward the through hole 31 of the component 30 as shown in FIG.
Finally, by inserting the pin 40 deeply into the insertion hole 51 of the grommet 50, the leg portion 90 of the grommet 50 is expanded on the back side of the component 30, as shown in FIG. By expanding the leg portion 90 of the grommet 50, the base 20 and the component 30 are sandwiched between the bottom surface of the flange 80 in a superposed state, and the component 30 is fastened to the mounting hole 21 of the base 20 via the clip 10. .

When the clip 10 is fastened, the opposing release surface of the slit 91 of the grommet 50 is not shown, but the prevention portion 110 of the pin 40, that is, the four central wing portions 111 to 114 and the four tip wing portions 115 to. 118 is closed from the outside.
For this reason, the prevention part 110 of the pin 40 prevents foreign matters such as gravel, sand, mud and dust from entering the hollow inside of the leg part 90 from the slit 91 of the grommet 50.

That is, if a foreign object such as gravel enters between the pin and the grommet, the frictional resistance between them increases, or the foreign object such as gravel acts as a kind of “wedge” and the pin can be pulled out. Although there was a possibility of disappearing, the prevention part 110 of the pin 40 can prevent the entry of foreign matter such as gravel, so that these problems can be solved. .
On the other hand, when releasing the fastening state of the clip 10, although not shown, a screwdriver or the like is inserted from the recess 82 of the grommet 50, and the head portion 70 of the pin 40 is lifted from the bottom surface of the recess 81, thereby The insertion leg 60 can be slid in a direction to be removed from the insertion hole 51 of the grommet 50.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 20 and 21, the feature of the present embodiment is that the prevention unit 200 is located at a part of the leg piece 92 of the grommet 50 and extends in the length direction of the slit 91. is there.
That is, using FIG. 20 and FIG. 21, the leg pieces 92 cut by the slits 91 are partially extended to form the extended portions 201 and 202.
As shown in FIG. 20, the extension portions 201 and 202 have their distal ends protruding outward in the normal state of the leg portion 90. When the insertion leg 60 of the pin 40 is inserted deeply into the leg portion 90 and the leg piece 92 is expanded, the both leg pieces 92 can move along the extension portions 201 and 202 to prevent the slit 91 from expanding. .

That is, since the groove width of the slit 91 does not change even when the leg piece 92 is expanded, it is possible to reduce the entry of foreign matter such as gravel as compared with a conventional grommet in which the groove width of the slit is expanded.
In addition, although the prevention part 200 was comprised from the extension parts 201 and 202, it is not limited to these.
(Third embodiment)
Next, although not shown, a third embodiment of the present invention will be described.

The feature of this embodiment is that the prevention portion extends from the lower surface of the flange of the grommet along the length direction of the slit.
In this embodiment, the preventing portion can be formed on the flange side of the grommet.

(First embodiment)
10 clips
20 Base 21 Mounting hole
30 Parts 31 Through hole
40 pin
50 Grommet 51 Insertion hole
52 Slide protrusion 53 Temporary protrusion
60 Insertion leg 70 Head
80 Flange 81 Recess
82 recess
90 Leg 91 Slit
92 Leg piece 93 Flat surface
94 Tip thick part 95 Locking claw
100 center leg
101,102 first and second contact portions
103,104 First and second protrusions
105 Locking groove 106 Slide groove
107 Temporary stop groove
110 Prevention part
111 to 114 Central wing part 115 to 118 Tip wing part (second embodiment)
200 Prevention part 201,202 Extension part

The present invention relates to a clip, in which a pin is slidably guided straight in an axial direction with respect to a grommet.

  Conventionally, a pin has an insertion hole into which the pin can be inserted, and a grommet in which a plurality of leg pieces are formed by a slit provided in the length direction of the leg, and the grommet is inserted into the insertion hole of the pin. A clip that can be partially expanded is known (see, for example, paragraph number “0008” in Patent Document 1 and FIGS. 1 to 6, paragraph number “0015” in Patent Document 2 and FIGS. 1 to 4).

JP 2006-105359 A JP 2010-7687

However, when the conventional clip described above is used for fastening a bumper of an automobile, for example, there is a possibility that gravel, mud, or the like may enter between the pin and the grommet from the outside.
For this reason, the conventional clip described above has a problem that it is difficult to release the fastening state when gravel or mud enters.
That is, when a foreign object such as gravel enters between the pin and the grommet, the frictional resistance between them increases, or the foreign object such as gravel acts as a kind of “wedge” to pull out the pin. There was a risk that it would be impossible.

Accordingly, each invention described in each claim has been made in view of the problems of the conventional techniques described above, and the object thereof is as follows.
(Claims 1-4)
The inventions described in claims 1 to 4 have the following objects.
That is, the invention according to claim 1 is configured such that the pin is slide-guided straight in the axial direction with respect to the grommet.
That is, according to each invention of Claims 1-4, a pin is guided without shifting | deviating horizontally from between the leg pieces of a grommet.

Each invention described in each claim has been made to achieve each of the above-mentioned objects, and features of each invention will be described below using embodiments of the invention shown in the drawings. .
In addition, the code | symbol in parenthesis shows the code | symbol used in embodiment of invention, and does not limit the technical scope of this invention.
Also, the drawing numbers indicate the drawing numbers used in the embodiments of the invention and do not limit the technical scope of the present invention.
(Claim 1)
The invention described in claim 1 is characterized by the following points.

First, as shown in FIGS. 1, 4 to 6 and 8, for example, at least one leg piece (92) of the leg piece (92) of the grommet (50) is slid in the axial direction of the pin (40). In addition, a guide portion (for example, central wing portions 111 to 114) for guiding the expansion between the plurality of leg pieces (92, 92) is provided.
  Secondly, as shown in FIG. 8, for example, as shown in FIG. 8, the guide portions (for example, the central wing portions 111 to 114) are provided across the side portions of the plurality of leg pieces (92) in the expanded state of the leg pieces (92). It was.

(Claim 2)
The invention described in claim 2 is characterized by the following points in addition to the characteristics of the invention described in claim 1 described above.

That is, at both ends of the pin (40), as shown in FIG. 8, for example, guide portions (central wing portions 111 to 114) are provided.
(Claim 3)
The invention described in claim 3 is characterized by the following points in addition to the characteristics of the invention described in claim 1 or claim 2 described above .

In other words, the width of the guide portion (for example, the central wing portions 111 to 114) is longer than the width of the slit (91) between the leg pieces (92) as shown in FIGS. 8, 14, 16, and 17, for example.
(Claim 4)
The invention described in claim 4 is characterized by the following points in addition to the features of the invention described in any one of claims 1-3 .

That is, for example, as shown in FIGS. 8 and 14, the pin (40) slides in the axial direction between protrusions (for example, temporary fixing protrusions 53, 53) provided on the slit (91) side of the grommet (50). A second guide portion (for example, an end portion of the central leg 100) is provided.

Since this invention is comprised as mentioned above, there exists an effect as described below.
(Claims 1-4)
According to each invention of Claims 1-4, there exist the following effects.
That is, according to the first aspect of the present invention, the pin is slidably guided in the axial direction with respect to the grommet.
That is, according to each invention of Claims 1-4, a pin is guided without shifting | deviating horizontally from between the leg pieces of a grommet.

It is a disassembled perspective view of a clip. It is sectional drawing of the attachment state of a clip. It is a perspective view of a pin. It is a front view of a pin. It is a bottom view of a pin. It is a side view of a pin. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is an enlarged view of the C part of FIG. It is sectional drawing which follows the DD line | wire of FIG. It is the perspective view which looked at the grommet from the upper part. It is the perspective view which looked at the grommet from the lower part. It is a side view of the grommet which made one half a cross section. It is a bottom view of a grommet. It is a front view of the grommet which made one half a section. It is a perspective view of the clip temporarily fixed state. It is a front view of the clip of the temporarily fixed state which made the half a cross section. It is a top view of the clip of a temporary stop state. It is a front view of the clip of the temporarily fixed state which made the half a cross section. FIG. 9 is a diagram illustrating a prevention unit according to the second embodiment of this invention. It is explanatory drawing of the prevention part which shows the state corresponding to FIG. 20 and the leg part of the grommet expanded.

In FIG. 1, reference numeral 10 denotes a clip. As shown in FIG. 2, for example, a base 30 such as an automobile body is attached to a component 30 such as an under cover.
In addition, although the body of the motor vehicle is illustrated as the base 20 and the under cover is illustrated as the component 30, it is not limited to these.
As shown in FIG. 2, the base 20 is provided with a rectangular mounting hole 21 through which the clip 10 can be inserted and through the front and back surfaces. Further, the clip 30 can be inserted into the component 30, and a rectangular through-hole 31 is provided through the front and rear surfaces while aligning with the attachment hole 21.

As shown in FIG. 1, the clip 10 is roughly divided into the following parts.
The following (1) and (2) will be described later.
(1) Pin 40
(2) Grommet 50
The parts of the clip 10 are not limited to the above (1) and (2).
(Pin 40)
As shown in FIGS. 1 to 10, the pin 40 can be inserted into an insertion hole 51 of a grommet 50 described later. The pin 40 is integrally formed of a thermoplastic synthetic resin having appropriate rigidity and elasticity, for example, PBT (polybutylene terephthalate).

Specifically, as shown in FIGS. 1 to 10, the pin 40 includes the following units when roughly classified.
The following (1) and (2) will be described later.
(1) Insertion leg 60
(2) Head 70
In addition, each part of the pin 40 is not limited to the above (1) and (2).
(Grommet 50)
As shown in FIGS. 1, 2, and 11 to 15, the grommet 50 has an insertion hole 51 into which an insertion leg 60 to be described later of the pin 40 can be inserted, and is provided in the length direction of the leg 90 to be described later. A plurality of, for example, two leg pieces 92 are formed by the slits 91. As shown in FIG. 2, the grommet 50 can be partially expanded by inserting the insertion leg 60 into the insertion hole 51. Similar to the pin 40, the grommet 50 is integrally formed of a thermoplastic synthetic resin having appropriate rigidity and elasticity, for example, POM (polyacetal).

In addition, although two pieces were illustrated as the number of the leg pieces 92, it is not limited to this, You may form three or more.
Specifically, as shown in FIGS. 1 and 11 to 15, the grommet 50 includes the following parts when roughly classified.
The following (1) and (2) will be described later.

(1) Flange 80
(2) Leg 90
In addition, each part of the grommet 50 is not limited to the above (1) and (2).
(Insertion leg 60)
As shown in FIGS. 1 to 10, the insertion leg 60 can be inserted into an insertion hole 51 of a grommet 50 described later.

Specifically, as shown in FIGS. 1 to 10, the insertion leg 60 includes the following parts when roughly classified.
The following (1) and (2) will be described later.
(1) Central leg 100
(2) Prevention unit 110
In addition, each part of the insertion leg 60 is not limited to the above (1) and (2).
(Head 70)
As shown in FIGS. 1 to 6, 8, and 10, the head 70 projects from the end of the insertion leg 60, that is, from the upper end in FIG. 1, and its outer diameter is the inner diameter of the insertion hole 51 of the grommet 50 described later. It is set larger. Specifically, as shown in FIG. 5, the head 70 has a plane formed in an oval shape or an oval shape.

Although the head 70 is formed in an oval or oval shape on the plane, it is not limited to this.
(Flange 80)
As shown in FIGS. 1, 2, and 11 to 15, the flange 80 is formed with an insertion hole 51 into which the insertion leg 60 of the pin 40 can be inserted in the center, and the outer diameter is the inner diameter of the mounting hole 21 of the base 20. It is set larger.

Specifically, as shown in FIGS. 1 and 11 to 15, the flange 80 is formed in a substantially disk shape, and the insertion hole 51 is formed in a substantially rectangular shape that is long in the diameter direction.
Although the flange 80 is formed in a substantially disk shape and the insertion hole 51 is formed in a substantially rectangular shape, it is not limited to these.
Specifically, as shown in FIGS. 1, 2, and 11 to 15, the flange 80 includes the following parts in addition to the insertion hole 51.

In addition, each part of the flange 80 is not limited to following (1) and (2).
(1) Recess 81
As shown in FIGS. 11, 13, and 15, the recess 81 is a portion into which the head portion 70 of the pin 40 fits. The recess 81 is recessed in a substantially circular shape from the upper surface of the flange 80 around the insertion hole 51. As shown in FIG. 2, at the position where the lower surface of the head 70 is in contact with the bottom surface of the recess 81 (hereinafter referred to as “lock position”), the upper surface of the head 70 and an annular shape around the flange 80 are provided. The projecting edge portion is arranged to be substantially flush with each other.

(2) Recess 82
As shown in FIGS. 1, 11, 13, and 15, the recess 82 is not shown in the state where the head portion 70 of the pin 40 is fitted in the recess 81, but a screwdriver or the like is inserted to The head 70 is levitated from the bottom surface of the recess 81. As shown in FIGS. 1 and 11, the recess 82 is located at both ends in the longitudinal direction centering on the insertion hole 51, and is formed by denting the annular projecting edge around the recess 81. ing.

On the other hand, the insertion hole 51 includes the following parts as shown in FIGS.
In addition, each part of the insertion hole 51 is not limited to following (3) and (4).
(3) Slide protrusion 52
As shown in FIG. 14, the slide protrusion 52 projects into the insertion hole 51 and guides the insertion leg 60 of the pin 40 inserted into the insertion hole 51 so as to be slidable. The slide protrusion 52 protrudes in a semicircular cross section from at least one end portion of both end portions in the longitudinal direction of the insertion hole 51. The slide protrusion 52 fits into a slide groove 106 of the center leg 100 described later, and slides relatively along the slide groove 106 when the pin 40 is inserted.

(4) Temporary stop projection 53
As shown in FIG. 14, the temporary fixing protrusion 53 projects into the insertion hole 51 and temporarily fixes the insertion leg 60 of the pin 40 inserted into the insertion hole 51. There are a total of four temporary fixing projections 53 at the four corners of both end portions in the longitudinal direction of the insertion hole 51, and project in a semicircular cross section. The temporary fixing protrusion 53 fits into a temporary fixing groove 107 of the central leg 100, which will be described later, and temporarily fixes the central leg 100 in a state where it is inserted shallowly into the insertion hole 51 as shown in FIGS. Hereinafter, it is referred to as “temporary fixing position”).
(Leg 90)
As shown in FIGS. 1, 2, and 11 to 15, the leg portion 90 hangs down from the lower surface of the flange 80 and can be inserted into the mounting hole 21 of the base 20 and the through hole 31 of the component 30.

Specifically, as shown in FIGS. 1, 2, and 11 to 15, the leg 90 includes the following units.
In addition, each part of the leg part 90 is not limited to following (1)-(5).
(1) Slit 91
As shown in FIGS. 1, 2, 11, 12, 14, and 15, the slit 91 is provided in the length direction of the leg 90, and the leg 90 includes a plurality of, for example, two leg pieces. Divided into 92. Specifically, the slit 91 extends from the end surface of the distal end portion of the leg portion 90 toward the lower surface of the flange 80. The slit 91 is provided along the longitudinal direction of the insertion hole 51 of the flange 80 and faces the short side direction of the insertion hole 51.

Although the number of leg pieces 92 is exemplified as two, the present invention is not limited to this, and the number of leg pieces 92 can be increased to three or more by increasing the number of slits 91.
(2) Leg piece 92
As shown in FIGS. 1, 2, and 11 to 15, two leg pieces 92 are opposed to each other with the slit 91 interposed therebetween.

(3) Flat surface 93
As shown in FIGS. 1, 2, 12, 13, and 15, the flat surface 93 is formed on the inner peripheral surface of the leg piece 92, and is formed substantially vertically in the drawing.
Although not shown, the flat surface 93 abuts against projecting surfaces 103 and 104 of the insertion leg 60 of the pin 40 described later, and both are in line contact along the length direction of the leg 90.

In addition, as a configuration in which the inner peripheral surface of the leg piece 92 of the grommet 50 and the outer peripheral surface of the insertion leg 60 of the pin 40 contacting the inner peripheral surface are in line contact along the length direction of the leg portion 90, The flat surface 93 is not limited.
(4) Thick end 94
As shown in FIGS. 1, 2, 11, 12, and 15, the distal end thick portion 94 is located at the distal end portion of the leg piece 92 and protrudes toward the slit 91. The wall thickness is gradually increased toward the tip.

(5) Locking claw 95
As shown in FIGS. 2, 13, and 15, the locking claw 95 is located on the inner surface of the distal end thick portion 94 and protrudes toward the slit 91 in a substantially trapezoidal shape or a substantially triangular shape. The locking claw 95 includes an inclined surface inclined obliquely downward toward the slit 91, and a substantially horizontal lower surface in FIG.

As shown in FIG. 2, the locking claw 95 fits into a locking groove 105 (to be described later) of the pin 40 in the locked position, and locks the pin 40 in the locked position.
(Center leg 100)
The center leg 100 contacts the inner periphery of the leg piece 90 of the grommet 50 as shown in FIGS. The center leg 100 is formed in a plate shape, has a lateral width equal to or smaller than the lateral width in the longitudinal direction of the insertion hole 51 of the flange 80, for example, substantially equal lateral width, and is equal to or smaller than the lateral width before and after the longitudinal direction of the insertion hole 51, for example, thinner than the lateral width. It has a thickness.

Specifically, as shown in FIGS. 1 to 10, the central leg 100 includes the following units.
In addition, each part of the center leg 100 is not limited to following (1)-(5).
(1) First and second contact portions 101, 102
As shown in FIGS. 1, 3, 5 to 8, and 10, the first and second contact portions 101 and 102 are located on the front and back surfaces of the central leg 100 in the thickness direction, and the leg pieces of the grommet 50 It is in contact with the inner periphery of 92, that is, the flat surface 93 and the tip thick portion 94.

(2) First and second projecting surfaces 103 and 104
As shown in FIGS. 1, 3, 4, 6, and 8, the first and second projecting surfaces 103 and 104 are positioned at the first and second contact portions 101 and 102, respectively, and the leg pieces 92 of the grommet 50. It protrudes toward the flat surface 93. As shown in FIG. 8, the first and second projecting surfaces 103 and 104 are located approximately at the center in the width direction of the central leg 100 and project in a substantially semicircular cross section. Further, the first and second projecting surfaces 103 and 104 extend in the vertical direction in FIGS. 1, 3, 4 and 6 along the length direction of the central leg 100.

Although not shown, the first and second projecting surfaces 103 and 104 are in contact with the flat surface 93 of the leg piece 92 of the grommet 50, and both are in line contact along the length direction of the leg portion 90.
In addition, as a configuration in which the inner peripheral surface of the leg piece 92 of the grommet 50 and the outer peripheral surface of the insertion leg 60 of the pin 40 contacting the inner peripheral surface are in line contact along the length direction of the leg portion 90, It is not limited to the first and second projecting surfaces 103,104.

(3) Locking groove 105
As shown in FIGS. 1, 2, 6, 7, and 10, the locking groove 105 is located on the lower end side of the central leg 100, and the locking claw 95 of the grommet 50 is fitted into the locking groove 105. As shown in FIG. 10, the locking groove 105 is formed of an inclined surface that is recessed in a concave shape, and the upper edge portion is inclined downward toward the bottom, and the lower edge portion is a substantially horizontal lower surface in the drawing.

(4) Slide groove 106
As shown in FIGS. 4, 5, 7 and 8, the slide groove 106 is formed at at least one end of the both ends in the width direction of the central leg 100, and the slide projection 52 of the grommet 50 is fitted therein. . The slide groove 106 extends in the longitudinal direction of the central leg 100, that is, in the vertical direction in FIG.

(5) Temporary stop groove 107
As shown in FIGS. 1, 3, and 4, the temporary fixing groove 107 is located on the lower end side of the central leg 100, and the temporary fixing protrusion 53 of the grommet 50 is fitted into the temporary fixing groove 107. The temporary fixing groove 107 is formed between a central wing portion 111 and a tip wing portion 112, which will be described later, and is recessed in a substantially U shape.
(Prevention unit 110)
As shown in FIGS. 1, 3 to 6, 8, and 9, the prevention unit 110 is located on at least one of the pin 40 and the grommet 50, for example, on the insertion leg 60 of the pin 40, and foreign matter such as gravel Is to prevent the entry of.

In addition, although the prevention part 110 was located in the pin 40, it is not limited to this, You may be located in the grommet 50 side, or may be located in the pin 40 and the grommet 50, respectively.
Specifically, the prevention unit 110 includes the following units as illustrated in FIGS. 1, 3 to 6, 8, and 9.
In addition, each part of the prevention part 110 is not limited to following (1) and (2), You may comprise the prevention part 110 from either (1) and (2).

(1) Central wings 111-114
As shown in FIGS. 1, 3 to 6, 8, and 9, the central wing portions 111 to 114 are located in the middle of the length of the central leg 100, and have a substantially wing shape outward from the central leg 100. It extends.
The central wing portions 111 to 114 function as wall portions of the prevention portion 110 that is extended to the insertion leg 60 of the pin 40. In addition, although the center wing | blade part 111-114 was illustrated as a wall part, it is not limited to these.

Specifically, as shown in FIG. 8, a total of four central wing portions 111 to 114 are provided at the four corners of the first and second abutting portions 101 and 102 of the central leg 100, and as a whole project in a substantially H-shaped cross section. ing.
Of the four central wings 111 to 114, the distance to the end face located outside the central wings 111 and 113, 112 and 114 facing the center leg 100 is the groove of the slit 91 of the grommet 50 More than the width, for example, longer than the groove width. Of the four central wings 111 to 114, the distance between the central wings 111 and 112, 113 and 114 facing each other across the first and second projecting surfaces 103 and 104 is greater than the lateral width of the leg piece 92, for example, It is made to substantially correspond to the width.

Although the number of the central wing portions 111 to 114 is four, the number is not limited to this, and the number of the central wing portions 111 to 114 may be a number that can block the release surface of the slit 91.
(2) Tip wings 115-118
As shown in FIGS. 1, 3 to 6, and 8, the tip wings 115 to 118 are located at the tip of the central leg 100 and extend outwardly from the central leg 100 in a substantially blade shape.

The tip wings 115 to 118, together with the central wings 111 to 114, function as a wall portion of the prevention unit 110 that extends from the insertion leg 60 of the pin 40. In addition, although the front wing | blade part 115-118 was illustrated as a wall part, it is not limited to these.
As shown in FIG. 5, a total of four tip wings 115 to 118 are provided at the four corners of the first and second contact portions 101, 102 of the central leg 100, and project as a whole in a substantially H-shaped cross section.

  The four tip wings 115 to 118 have a distance from the tip wings 115 and 117 facing away from the center leg 100 to the end face located outside the 116 and 118, and the groove width of the slit 91 of the grommet 50. For example, the length is set longer than the groove width. Of the four tip wings 115 to 118, the distance between the central wings 115 and 116, 117 and 118 facing each other across the first and second projecting surfaces 101 and 102 is equal to or greater than the lateral width of the leg piece 92. It is made to substantially correspond to the width.

In addition, although four pieces were illustrated as the number in the tip wings 115 to 118, the number is not limited to this, and it may be a number that can block the release surface of the slit 91.
(How to use clip 10)
Next, a method for using the clip 10 having the above-described configuration will be described.
First, as shown in FIGS. 16-19, the insertion leg 60 of the pin 40 is inserted according to the insertion hole 51 of the grommet 50, and it is set as a temporary fix | stop state.

Next, the part 30 is attached to the base 20 as shown in FIG.
Although the clip 10 is temporarily fixed, when attaching the component 30, the grommet 50 may be attached to the base 20 and the component 30 first, and the pin 40 may be inserted last.
First, as shown in FIG. 2, the base 20 and the component 30 are overlapped, and the mounting holes 21 and the through holes 31 of both are aligned.

Next, the leg portion 90 of the grommet 50 in the temporarily fixed state is inserted from the mounting hole 21 side of the base 20 toward the through hole 31 of the component 30 as shown in FIG.
Finally, by inserting the pin 40 deeply into the insertion hole 51 of the grommet 50, the leg portion 90 of the grommet 50 is expanded on the back side of the component 30, as shown in FIG. By expanding the leg portion 90 of the grommet 50, the base 20 and the component 30 are sandwiched between the bottom surface of the flange 80 in a superposed state, and the component 30 is fastened to the mounting hole 21 of the base 20 via the clip 10. .

When the clip 10 is fastened, the opposing release surface of the slit 91 of the grommet 50 is not shown, but the prevention portion 110 of the pin 40, that is, the four central wing portions 111 to 114 and the four tip wing portions 115 to. 118 is closed from the outside.
For this reason, the prevention part 110 of the pin 40 prevents foreign matters such as gravel, sand, mud and dust from entering the hollow inside of the leg part 90 from the slit 91 of the grommet 50.

That is, if a foreign object such as gravel enters between the pin and the grommet, the frictional resistance between them increases, or the foreign object such as gravel acts as a kind of “wedge” and the pin can be pulled out. Although there was a possibility of disappearing, the prevention part 110 of the pin 40 can prevent the entry of foreign matter such as gravel, so that these problems can be solved. .
On the other hand, when releasing the fastening state of the clip 10, although not shown, a screwdriver or the like is inserted from the recess 82 of the grommet 50, and the head portion 70 of the pin 40 is lifted from the bottom surface of the recess 81, thereby The insertion leg 60 can be slid in a direction to be removed from the insertion hole 51 of the grommet 50.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 20 and 21, the feature of the present embodiment is that the prevention unit 200 is located at a part of the leg piece 92 of the grommet 50 and extends in the length direction of the slit 91. is there.
That is, using FIG. 20 and FIG. 21, the leg pieces 92 cut by the slits 91 are partially extended to form the extended portions 201 and 202.
As shown in FIG. 20, the extension portions 201 and 202 have their distal ends protruding outward in the normal state of the leg portion 90. When the insertion leg 60 of the pin 40 is inserted deeply into the leg portion 90 and the leg piece 92 is expanded, the both leg pieces 92 can move along the extension portions 201 and 202 to prevent the slit 91 from expanding. .

That is, since the groove width of the slit 91 does not change even when the leg piece 92 is expanded, it is possible to reduce the entry of foreign matter such as gravel as compared with a conventional grommet in which the groove width of the slit is expanded.
In addition, although the prevention part 200 was comprised from the extension parts 201 and 202, it is not limited to these.
(Third embodiment)
Next, although not shown, a third embodiment of the present invention will be described.

The feature of this embodiment is that the prevention portion extends from the lower surface of the flange of the grommet along the length direction of the slit.
In this embodiment, the preventing portion can be formed on the flange side of the grommet.

(First embodiment)
10 clips
20 Base 21 Mounting hole
30 Parts 31 Through hole
40 pin
50 Grommet 51 Insertion hole
52 Slide protrusion 53 Temporary protrusion
60 Insertion leg 70 Head
80 Flange 81 Recess
82 recess
90 Leg 91 Slit
92 Leg piece 93 Flat surface
94 Tip thick part 95 Locking claw
100 center leg
101,102 first and second contact portions
103,104 First and second protrusions
105 Locking groove 106 Slide groove
107 Temporary stop groove
110 Prevention part
111 to 114 Central wing part 115 to 118 Tip wing part (second embodiment)
200 Prevention part 201,202 Extension part

Claims (10)

idea,
The pin has an insertion hole into which the pin can be inserted, and includes a grommet in which a plurality of leg pieces are formed by a slit provided in the length direction of the leg portion,
In the clip in which the grommet can be partially expanded by inserting the pin into the insertion hole,
At least one of the pin and the grommet,
A clip provided with a prevention portion for preventing foreign matter such as gravel from entering. The prevention unit is
The clip according to claim 1, wherein the clip is located at a part of an insertion leg of the pin and extends along a length direction of the slit. The prevention unit is
The clip according to claim 1, wherein the clip is located in a part of the leg piece of the grommet and extends in a length direction of the slit. The prevention unit is
The clip according to claim 1, wherein the clip extends from a lower surface of the flange of the grommet along a length direction of the slit. The prevention unit is
The clip according to claim 1, wherein the clip is a wall portion that extends from an insertion leg of the pin. The pin insertion leg is
A central leg having an abutting portion in contact with the inner periphery of the leg piece of the grommet;
The clip according to any one of claims 1, 2, and 5, further comprising a wing portion extending outward from the central leg. The wings are
The clip according to claim 6, wherein the clip is located in the middle of the length of the central leg. The wings are
The clip according to claim 6 or 7, wherein the clip is located at a tip portion of the center leg.   The inner peripheral surface of the leg piece of the grommet and the outer peripheral surface of the insertion leg of the pin contacting the inner peripheral surface are in line contact along the length direction of the leg portion. The clip according to any one of claims 1 to 8. The inner peripheral surface of the leg piece of the grommet as a flat surface,
The clip according to claim 9, wherein an outer peripheral surface of the insertion leg of the pin is a protruding surface protruding toward the flat surface.

Images