JP2022167100A - Fastener - Google Patents

Abstract

To provide a fastener which can secure a sufficient withdrawal force.SOLUTION: A fastener 10 comprises a first plate part having a free end at a tip, a second plate part lying opposite the first plate part and having a free end at a tip, and a connecting part connecting base ends of the first plate part and the second plate part to each other. Each of the first plate part and the second plate part includes: a lock part which is inclined so that an interval in an opposing direction is narrower toward a tip side, and locked to a rear edge of an attachment hole 14a; a first abutment part located on the tip side with respect to the lock part and abutting on a boss 12; and a second abutment part located on a base end side with respect to the lock part and abutting on the boss 12. An interval between a pair of the first abutment parts in the opposing direction when viewed along a width direction is equal to or smaller than plate thicknesses of the first plate part and the second plate part.SELECTED DRAWING: Figure 1

Description

The present invention relates to fasteners for attaching components to mounting members.

In Patent Document 1, a U-shaped square bent portion formed in the center of a flat plate, an inclined piece portion extending and expanding on both sides of the square bent portion, and a plate bent from the inclined piece portion. A clip is disclosed that includes a support piece portion that extends inwardly through the clip, and a pair of locking pieces that are formed by slanting a portion of an inclined piece portion and a bent portion inwardly from each inclined piece portion.

JP-A-2001-65517

In the technique disclosed in Patent Document 1, a pair of support pieces can be bent in a direction to approach each other in a state where the clip is attached to the rectangular window of the mounting member, that is, bent in a direction to release the support to the rectangular window. Because it is possible, there is a risk that sufficient withdrawal force cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fastener that can secure a sufficient withdrawal force.

In order to solve the above problems, one aspect of the present invention is a fastener that is attached to a boss and inserted into an attachment hole together with the boss, the fastener comprising a first plate portion having a free end at the tip; and a connecting portion connecting the base ends of the first plate portion and the second plate portion. The first plate portion and the second plate portion are inclined so that the interval in the facing direction narrows toward the distal end side, and the locking portion that is locked to the back edge of the mounting hole and the locking portion that is closer to the distal end side than the locking portion. A first contact portion is positioned to contact the boss, and a second contact portion is positioned closer to the proximal side than the locking portion and contacts the boss. The distance between the pair of first contact portions in the opposing direction seen along the width direction is equal to or less than the plate thickness of the first plate portion and the second plate portion.

ADVANTAGE OF THE INVENTION According to this invention, the fastener which can ensure sufficient extraction force can be provided.

FIG. 4 is a perspective view of an example fastener attached to a boss; 1 is a perspective view of an example fastener; FIG. 3(a) is a front view of the fastener, FIG. 3(b) is a side view of the fastener, and FIG. 3(c) is a top view of the fastener. It is a perspective view of the fastener of the state which made the 1st board part and the 2nd board part approach. FIG. 4 is a cross-sectional view of the fastener attached to the boss;

FIG. 1 is a perspective view of an example fastener 10 attached to a boss 12. FIG. Fastener 10 is used to attach a component to mounting member 14 . The part may be an interior panel of the vehicle, an in-vehicle part such as an operation panel provided with a switch for opening and closing a window, or a decorative part with a design such as a cover.

The boss 12 is provided integrally with the component and formed to protrude from the back surface of the component. A plurality of bosses 12 are formed on the component. The tip of the boss 12 is tapered. The boss 12 has a boss body 12a and side walls 12b. The boss body 12a is formed in a flat plate shape. A pair of side wall portions 12b are formed on both sides of the boss body 12a. The side wall portion 12b restricts the movement of the fastener 10 in the width direction.

The mounting member 14 may be a trim panel, a vehicle body panel, or the like. The mounting member 14 has a rectangular mounting hole 14a. A plurality of mounting holes 14a are formed according to the positions of the bosses 12, and are formed with their long sides oriented in the same direction.

The fastener 10 is attached to the boss 12 of the part and then to the attachment hole 14a of the attachment member 14. As shown in FIG. In the event of a component failure, the fastener 10 is pulled out from the mounting hole 14a without being removed from the boss 12. - 特許庁

For example, if the component provided with the boss 12 is an operation panel, the larger the operation area provided with the operation switches, the better. The boss 12 cannot be provided on the back surface of the operation area, but is provided on the frame of the operation panel. Therefore, the interval L between the mounting holes 14a is reduced to form the fastener 10 that can be inserted into the small mounting holes 14a.

FIG. 2 is a perspective view of the fastener 10 of the embodiment. 3(a) is a front view of the fastener 10, FIG. 3(b) is a side view of the fastener 10, and FIG. 3(c) is a top view of the fastener 10. FIG.

The fastener 10 is made of a metal material and formed by cutting and pressing a metal plate. By forming with a metal material, it is possible to give a higher pull-out force than in the case of forming with a resin material. The fastener 10 includes a first plate portion 20 a , a second plate portion 20 b and a connecting portion 22 .

The first plate portion 20a and the second plate portion 20b face each other and have a free end at the tip 21a. The connecting portion 22 connects the base ends 21b of the first plate portion 20a and the second plate portion 20b. The first plate portion 20a and the second plate portion 20b can be expanded or approached and bent to sandwich the boss 12 therebetween. The direction in which the first plate portion 20a and the second plate portion 20b face each other is called the facing direction. Further, the direction connecting the distal end 21a to the proximal end 21b of the first plate portion 20a and the second plate portion 20b is referred to as an extension direction or a height direction. Further, the direction perpendicular to the extending direction and the facing direction and connecting the pair of side wall portions 12b of the boss 12 is called the width direction.

The first plate portion 20a includes a proximal side plate portion 24a, an expanding plate portion 26a, an engaging portion 28a, a claw portion 30a, a central piece portion 32, a first contact portion 40a, a second contact portion 42a, and a folded portion 44a. have. The proximal side plate portion 24a extends from the proximal end 21b toward the distal end 21a, and the spreading plate portion 26a is formed so as to be connected to the proximal side plate portion 24a and spread toward the distal end 21a. A claw portion 30a is formed on the expanding plate portion 26a. The claw portion 30a engages so as to bite into the boss body 12a. As a result, the fastener 10 can be attached to the boss 12 without forming a hole in the boss body 12a. The claw portion 30a is positioned at the center in the width direction.

The engaging portion 28a is inclined so that the distance between the second plate portion 20b and the second plate portion 20b narrows toward the tip 21a, and is engaged with the rear edge of the mounting hole 14a. The boss 12 can be fixed to the mounting member 14 by locking the locking portion 28a to the rear edge of the mounting hole 14a. The engaging portion 28a is bent from the expanding plate portion 26a and inclined inward in the opposing direction toward the tip 21a side. Since the engaging portion 28a has the inclined surface, it is possible to absorb changes in the plate thickness of the mounting member 14. As shown in FIG.

The center piece portion 32 is located on the tip 21a side of the first plate portion 20a, and is formed narrow by notching both sides. The folded portion 44a is bent so as to be folded back in the middle of the central piece portion 32 and protrudes outward in the opposing direction. The folded portion 44a can prevent the fastener 10 from falling out of the mounting hole 14a. The center piece portion 32 is formed from the engaging portion 28a to the folded portion 44a.

The first contact portion 40a is located closer to the distal end 21a than the engaging portion 28a, and is provided at a position where the engaging portion 28a and the folded portion 44a are bent. Due to this bending, the first contact portion 40a protrudes inward in the facing direction and comes into contact with the boss body 12a.

The second contact portion 42a is located closer to the proximal end 21b than the engaging portion 28a, and is provided at a position where the proximal side plate portion 24a and the expansion plate portion 26a are bent. Due to this bending, the second contact portion 42a protrudes inward in the opposing direction and comes into contact with the boss body 12a.

The second plate portion 20b includes a proximal side plate portion 24b, an expanding plate portion 26b, a locking portion 28b, a claw portion 30b, a through hole portion 34, a side piece portion 36, a first contact portion 40b, and a second contact portion 42b. and a folded portion 44b.

The proximal side plate portion 24b extends from the proximal end 21b toward the distal end 21a. The expanding plate portion 26b is formed so as to be connected to the proximal side plate portion 24b and expand toward the distal end 21a. A claw portion 30b is formed on the expanding plate portion 26b. The claw portion 30b engages so as to bite into the boss body 12a.

The locking portion 28b is inclined so that the distance between the first plate portion 20a and the first plate portion 20a narrows toward the tip 21a, and is locked to the rear edge of the mounting hole 14a. The boss 12 can be fixed to the mounting member 14 by locking the locking portion 28b to the back edge of the mounting hole 14a. The engaging portion 28b is bent from the expanding plate portion 26b and inclined inward in the opposing direction toward the tip 21a side.

The pair of side piece portions 36 are located on the tip 21a side of the first plate portion 20a and are notched in the center. A through hole portion 34 is formed between the pair of side piece portions 36 . The folded portion 44b is bent so as to be folded back in the middle of the side piece portion 36 and protrudes outward in the opposing direction. The through hole portion 34 and the side piece portion 36 are formed from the engaging portion 28b to the folded portion 44b.

The first contact portion 40b is located closer to the distal end 21a than the engaging portion 28b, and is provided at a position where the engaging portion 28b and the folded portion 44b are bent. Due to this bending, the first contact portion 40b protrudes inward in the opposing direction and comes into contact with the boss body 12a.

The second contact portion 42b is located closer to the proximal end 21b than the engaging portion 28b and the claw portion 30b, and is provided at a position where the proximal side plate portion 24b and the expansion plate portion 26b are bent. Due to this bending, the second contact portion 42b protrudes inward in the opposing direction and comes into contact with the boss body 12a.

As shown in FIG. 3A, the first contact portion 40a of the first plate portion 20a and the first contact portion 40b of the second plate portion 20b are formed to be shifted in the width direction. The first contact portion 40b of the second plate portion 20b has a through hole portion 34 into which the first contact portion 40a of the first plate portion 20a can enter. Thereby, the tip 21a sides of the first plate portion 20a and the second plate portion 20b can be crossed.
Further, by arranging the first contact portion 40a in the center, it is possible to suppress the first contact portion 40a from generating rotational torque with respect to the boss body 12a.

The widthwise length of the central piece portion 32 and the sum of the widthwise lengths of the pair of side piece portions 36 are set to be substantially the same. Thereby, the clamping force of the first contact portion 40a and the first contact portion 40b can be made uniform.

As shown in FIG. 3(b), the distance between the pair of first contact portions 40a and 40b in the opposing direction when viewed along the width direction is equal to or less than the plate thickness of the first plate portion 20a and the second plate portion 20b. be. As a result, when a plurality of fasteners 10 are collectively conveyed, it is possible to prevent another fastener 10 from entering between the first contact portions 40a and 40b and becoming entangled. In addition, the facing direction of the fastener 10 can be made compact. Furthermore, the distance between the pair of first contact portions 40a and 40b in the opposing direction when viewed along the width direction is zero or less. The distance between the pair of first contact portions 40a and 40b in the facing direction may be a negative value, that is, the state where the pair of first contact portions 40a and 40b intersect. As a result, entanglement between the fasteners 10 can be suppressed more reliably. In addition, the facing direction of the fastener 10 can be made more compact.

As shown in FIG. 3B, the spacing Lt between the pair of second contact portions 42a and 42b in the facing direction is narrower than the length of the connecting portion 22 in the facing direction and narrower than the thickness of the boss body 12a. The pair of proximal side plate portions 24a and 24b approach toward the distal end 21a. As a result, the pair of second contact portions 42a and 42b can protrude inward in the facing direction, so that when the fastener 10 is sandwiched between the boss body 12a, the first plate portion 20a and the second plate portion 20b are separated from each other. are bent in the direction of separation in the opposing direction, and even if the interval Lt in the opposing direction between the pair of second contact portions 42a and 42b widens, the position of the pair of second contact portions 42a and 42b with respect to the boss body 12a can be easily adjusted. Can be set. By determining the positions at which the pair of second contact portions 42a and 42b come into contact with the boss body 12a, the load holding the boss body 12a can be stabilized.

As shown in FIG. 3B, the extension plate portion 26a and the engaging portion 28a have the same length in the extending direction. That is, the bending position between the expanding plate portion 26a and the locking portion 28a is located between the first contact portion 40a and the second contact portion 42a. As a result, the force for inserting the fastener 10 into the mounting hole and the force for removing it from the mounting hole can be substantially the same.

FIG. 4 is a perspective view of the fastener 10 with the first plate portion 20a and the second plate portion 20b approaching each other. When the first plate portion 20a and the second plate portion 20b approach each other, the first contact portion 40a and the first contact portion 40b are shifted in the width direction. After entering, the tip sides of the first plate portion 20a and the second plate portion 20b intersect.

By bending the first plate portion 20a and the second plate portion 20b closer together, the distance between the first contact portion 40a and the first contact portion 40b in the opposing direction is determined. The first plate portion 20a and the second plate portion 20b return to the expanding direction due to springback when bending is performed. Therefore, by allowing the center piece portion 32 to enter the through hole portion 34, the interval in the facing direction between the first contact portion 40a and the first contact portion 40b can be set to zero or less.

5 is a cross-sectional view of fastener 10 attached to boss 12. FIG. The first contact portion 40a and the first contact portion 40b sandwich the boss body 12a, and the second contact portion 42a and the second contact portion 42b sandwich the boss body 12a. As a result, each of the first plate portion 20a and the second plate portion 20b abuts against the boss body 12a like a piece on both sides. Therefore, when the fastener 10 and the boss 12 are pulled out from the mounting hole 14a, the first plate portion 20a and the second plate portion 20b are less likely to flex in the direction of approaching each other, and the pull-out force can be increased. As a result, even if the fastener 10 is made thin and the amount of wrap around the attachment hole 14a by the locking portions 28a and 28b is reduced, a sufficient removal force can be ensured. Therefore, it can be attached to the attachment hole 14a in which the interval L is reduced.

In addition, since the fastener 10 is sandwiched between the boss 12 at two upper and lower positions, it can be stably fixed to the boss 12, suppressing rattling during transportation, and suppressing rattling with respect to the mounting member 14 in the mounted state. can.

The present invention is not limited to the above-described embodiments, and modifications such as various design changes can be made to the embodiments based on the knowledge of those skilled in the art. Examples may also be included within the scope of the invention.

10 Fastener 12 Boss 12a Boss body 12b Side wall 14 Mounting member 14a Mounting hole 20a First plate 20b Second plate 21a Tip 21b Base end 22 Connecting portion 24a, 24b Base End side plate portions 26a, 26b Expansion plate portions 28a, 28b Locking portions 30a, 30b Claw portions 32 Central piece portion 34 Through hole portion 36 Side piece portion 40a, 40b First contact portion 42a, 42b second contact portion, 44 folded portion.

Claims (4)

A fastener attached to the boss and inserted into the mounting hole together with the boss,
a first plate portion having a free end at its tip;
a second plate facing the first plate and having a free end at its tip;
a connecting portion that connects the base ends of the first plate portion and the second plate portion;
The first plate portion and the second plate portion are
a locking portion that is inclined so that the interval in the opposing direction narrows toward the distal end side and that locks onto the back edge of the mounting hole;
a first contact portion located on the distal end side of the locking portion and in contact with the boss;
and a second abutment portion positioned closer to the proximal end than the locking portion and abutting against the boss,
A fastener, wherein an interval between the pair of first contact portions in the opposing direction viewed along the width direction is equal to or less than the plate thicknesses of the first plate portion and the second plate portion. 2. The fastener according to claim 1, wherein the distance between the pair of first contact portions in the opposing direction when viewed along the width direction is zero or less. The pair of first contact portions are formed to be shifted in the width direction,
3. The fastener according to claim 1, wherein one of the first contact portions has a through hole into which the other of the first contact portions can be inserted. The fastener according to any one of claims 1 to 3, wherein the distance between the pair of second contact portions in the facing direction is narrower than the length of the connecting portion in the facing direction.

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