CN112739917A

CN112739917A - Fixing piece

Info

Publication number: CN112739917A
Application number: CN201980060175.2A
Authority: CN
Inventors: 池田哲也
Original assignee: Bellox Corp
Current assignee: Bellox Corp
Priority date: 2018-09-18
Filing date: 2019-09-17
Publication date: 2021-04-30
Anticipated expiration: 2039-09-17
Also published as: CN112739917B; JPWO2020059680A1; JP7039152B2; WO2020059680A1

Abstract

The present invention is a fastener fixed to a mounting member by a screw, including: an inner cylinder (24) which can screw the screw; an outer tube section (20) surrounding the inner tube section (24); and a first connecting part (28a) and a second connecting part (28b) which connect the inner tube part (24) and the outer tube part (20). The fixing member abuts against or approaches a second convex portion (12b) formed on the mounting member in a state of being fixed to the mounting member, thereby restricting the movement of the fixing member in both rotational directions around the shaft.

Description

Fixing piece

Technical Field

The present invention relates to a fixing member fixed to a mounting member by a screw.

Background

Patent document 1 discloses a grommet (grommet) for mounting various members on a vehicle body panel. The grommet has: a flange; a pair of extensions extending the flanges radially outward; and a clamping hole for inserting a screw. In addition, this grommet is still provided with: mounting holes for inserting screws into various plate-like members; and a pair of projections projecting from the rear surface. The grommet is composed of: when the screw is inserted into the engagement hole and tightened, the extension of the grommet abuts against the projection, thereby preventing the grommet from rotating.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2-173409

Disclosure of Invention

Problems to be solved by the invention

In the technique disclosed in patent document 1, the projection restricts the rotation of the grommet in one direction, but there is room for rotation in the other direction, and the grommet can rotate in the other direction.

The present invention has been made in view of the above problems, and an object thereof is to provide a fixture that restricts movement in two rotational directions in rotation of the fixture about an axis.

Means for solving the problems

In order to solve the above problem, one aspect of the present invention is a fixture fixed to a mounting member by a screw, the fixture including: an inner cylinder part which can screw the screw thread; an outer tube section surrounding the inner tube section; and a coupling portion that couples the inner tube portion and the outer tube portion. The fixing member abuts against or approaches a projection formed on the mounting member in a state of being fixed to the mounting member, thereby restricting movement of the fixing member in both rotational directions around the shaft.

Effects of the invention

According to the present invention, it is possible to provide a fixing member that restricts movement in two rotational directions in rotation of the fixing member around an axis.

Drawings

Fig. 1 is a perspective view of a fixing member of the embodiment.

Fig. 2 (a) is a front view of the fastener, and fig. 2 (b) is a side view of the fastener.

Fig. 3 (a) is a plan view of the fastener, and fig. 3 (b) is a bottom view of the fastener.

Fig. 4 (a) is a sectional view of the anchor shown in fig. 3 (a) taken along line a-a, and fig. 4 (B) is a sectional view of the anchor shown in fig. 3 (a) taken along line B-B.

Fig. 5 is a diagram for explaining the attached state of the fixture.

Fig. 6 is a perspective view of the mounting member.

Fig. 7 is a view for explaining an attachment structure for fixing a fixture to an attachment member.

Fig. 8 is a perspective view of a fastener according to a modification.

Fig. 9 is a view for explaining an attachment structure for fixing a mount of a modification to an attachment member.

Detailed Description

Fig. 1 is a perspective view of a fixing member 10 of the embodiment. Fig. 1 (a) is a perspective view of the anchor 10 viewed from above, and fig. 1 (b) is a perspective view of the anchor 10 viewed from below. Fig. 2 (a) is a front view of the fastener 10, and fig. 2 (b) is a side view of the fastener 10. Fig. 3 (a) is a plan view of the fixture 10, and fig. 3 (b) is a bottom view of the fixture 10. Note that the rear view of the fixing member 10 is the same as the front view, and the right side view and the left side view of the fixing member 10 are also the same.

The fixing member 10 is used to attach an interior panel such as an instrument panel or a trim panel to a vehicle body panel. The fixture 10 is formed so that a screw member for fixing to the interior panel can be inserted. The vehicle body panel and the interior panel are respectively formed with mounting holes, the mount 10 is inserted into the mounting hole of the vehicle body panel, and the screw member is inserted through the insertion hole of the interior panel.

The vehicle body panel functions as an attached member having an attachment hole, and the interior panel functions as an attachment member attached to the attached member. The member to be attached is not limited to the vehicle body panel, and may be a component such as a cowl or a bumper, and the member to be attached is not limited to the interior panel, and may be a decorative component.

The fastener 10 includes an outer tube portion 20, a head portion 22, an inner tube portion 24, a screw hole 26, a first coupling portion 28a, a second coupling portion 28b, an elastic locking portion 30, a hole portion 32, a void portion 34, a protrusion portion 36, and a side rib 38.

The outer tube portion 20 is formed in a square tube shape, surrounds the inner tube portion 24, and is inserted into the mounting hole of the member to be mounted. The head 22 is formed in a flange shape at the upper end of the outer tube portion 20, has a rectangular outer shape, and is hooked on the edge of the mounting hole of the member to be mounted. The inner tube portion 24 is formed in a cylindrical shape and has a bottom inside the outer tube portion 20. The inner cylindrical portion 24 is located coaxially with the outer cylindrical portion 20. A threaded hole 26 is formed inside the inner tube portion 24.

The first coupling portion 28a and the second coupling portion 28b (which will be referred to as "coupling portion 28" when they are not distinguished) are formed in a wall shape, and are disposed in parallel so as to face each other, and couple the outer tube portion 20 and the inner tube portion 24. The coupling portion 28 is located at a position sandwiching the inner tube portion 24, and the pair of elastic locking portions 30 extend in directions facing each other. The coupling portion 28 partitions the inner side of the outer tube portion 20 into a hole portion 32 and a space portion 34.

The pair of elastic locking portions 30 are formed to be flexible toward the outer tube portion 20 and to protrude outward of the outer tube portion 20, and when the anchor 10 is inserted into the mounting hole of the member to be mounted, the pair of elastic locking portions 30 are locked to the edge of the mounting hole. The pair of elastic locking portions 30 are located at positions facing each other with the inner tube portion 24 interposed therebetween, and can be flexed so as to approach or separate from each other.

The holes 32 are formed in a pair between the outer tube portion 20 and the inner tube portion 24, and the holes 32 are formed in an elongated hole shape partitioned by the coupling portion 28 and the outer tube portion 20. The hole 32 is provided as a through hole in the embodiment, but may have a bottom. The surface of the hole 32 defined by the coupling portion 28 and the outer cylindrical portion 20 may be simply referred to as the inner surface of the hole 32. A pair of gaps 34 are formed between the pair of holes 32. The clearance 34 ensures a movement space of the elastic locking portion 30. As shown in fig. 3, the direction in which the pair of elastic locking portions 30 face each other is the first direction D1, and the direction orthogonal to the first direction D1 is the second direction D2. The first direction D1 is a direction parallel to the mounting surface of the mounting member. The length of the hole portion 32 in the first direction D1 is longer than the length of the void portion 34 in the first direction D1 and the second direction D2.

The plurality of protrusions 36 are formed to protrude outward from the edge of the head portion 22. The protrusions 36 are formed on two parallel sides of the four sides of the head 22, and a pair of the parallel sides are formed on one side so as to be separated in the width direction.

The side rib 38 is formed to protrude toward the outer surface of the outer tube portion 20 and is located at the center of the outer surface of the outer tube portion 20. By providing the side ribs 38, even if the outer shape of the outer cylinder 20 is set smaller than the mounting hole into which the outer cylinder 20 is inserted, the side ribs 38 abut against the mounting hole to suppress play, and the outer cylinder 20 can be set small and easily inserted into the mounting hole. Thus, when the outer tube 20 is inserted into the rectangular mounting hole, the outer tube 20 can be inserted even if the rotation angle of the outer tube 20 is offset from the mounting hole.

Fig. 4 (a) is a sectional view of the anchor 10 shown in fig. 3 (a) taken along line a-a, and fig. 4 (B) is a sectional view of the anchor 10 shown in fig. 3 (a) taken along line B-B.

As shown in fig. 4 (a), a void portion 34 is formed inside the elastic locking portion 30, and a space in which the elastic locking portion 30 can flex inward is secured. The inner tube portion 24 is formed in a bottomed tubular shape and is shorter than the outer tube portion 20 in the axial direction.

As shown in fig. 4 (b), the gap 34 is located between the pair of holes 32. The coupling portion 28 is set to be slightly shorter than the inner cylindrical portion 24 in the axial direction and longer than half of the axial length of the outer cylindrical portion 20. This ensures rigidity of coupling portion 28. The pair of coupling portions 28 is located on the outer side in the width direction than the elastic locking portion 30, and does not restrict the movement of the elastic locking portion 30.

Fig. 5 is a diagram for explaining the attached state of the fixture 10. In the mounted state, the fixture 10 is fixed to the mounting member 12 by a screw 16 inserted into the insertion hole 12a of the mounting member 12. The stator 10 is fixed to the member 14 by the elastic engaging portion 30 engaged with the inner edge of the mounting hole 14a, with the outer cylinder portion 20 inserted into the mounting hole 14a of the member 14.

Fig. 6 is a perspective view of the mounting member 12. Fig. 6 shows a mounting surface on the back side of the mounting member 12. The mounting member 12 has: an insertion hole 12a through which a screw 16 is inserted; and a first projection 12c and a second projection 12b (which will be referred to as "projections" without distinguishing them) projecting from the mounting surface.

The second protrusions 12b are provided in a pair with the insertion hole 12a and the first protrusions 12c interposed therebetween, and are formed in a wall shape and extend parallel to each other. As shown in fig. 5, the head 22 of the fixing member 10 is received in the second projection 12 b. The first convex portion 12c can be inserted into the hole portion 32.

The first protrusions 12c are provided in a pair with the insertion holes 12a interposed therebetween, and are formed in a wall shape and extend parallel to each other. The interval between the pair of first projections 12c is shorter than the interval between the pair of second projections 12 b. The first convex portion 12c is provided to extend in a direction orthogonal to the second convex portion 12 b. That is, the direction in which the pair of first convex portions 12c face each other is orthogonal to the direction in which the pair of second convex portions 12b face each other.

A method of mounting the fixing member 10 will be explained. The fixture 10 is first secured to the mounting member 12. The operator inserts the first projecting portion 12c into the hole portion 32, receives the head portion 22 between the pair of second projecting portions 12b, and inserts and fastens the screw 16 from the insertion hole 12a into the screw hole 26 of the inner cylindrical portion 24. Thereby, the fixture 10 is fixed to the mounting member 12. If the mounting member 12 is an interior trim panel, a plurality of the fixtures 10 are fixed by screws 16.

Next, the operator aligns and inserts the outer tube portion 20 into the mounting hole 14a of the member to be mounted 14, and causes the pair of elastic locking portions 30 to be flexed and locked to the inner edge of the mounting hole 14a shown in fig. 5. In this way, the mounting member 12 is mounted to the mounted member 14 via the fixture 10. By fixing the mount 10 to the mounting member 12, the mount 10 can be simply press-fitted to the member to be mounted 14, and the mounting work is facilitated when the interior panel is mounted to the vehicle body panel.

Fig. 7 is a diagram illustrating an attachment structure for fixing the fixture 10 to the attachment member 12. Fig. 7 shows a state before being mounted on the mounted member 14 in a state seen from the back side of the mounting member 12.

The head portion 22 is accommodated between the pair of second convex portions 12b, and the protruding portions 36 at the edges of the head portion 22 abut on or come close to the second convex portions 12b, respectively. The pair of first convex portions 12c are inserted into the pair of holes 32, and the first convex portions 12c abut against or approach the inner surfaces of the holes 32. Thus, the first projection 12c and the second projection 12b can restrict the movement of the fixture 10 in both rotational directions around the shaft, respectively, and can suppress the fixture 10 from rotating together with the screw 16 when the screw 16 is fastened and detached. The movements of the fixing member 10 in both rotational directions about the shaft refer to clockwise and counterclockwise rotations of the fixing member 10 as viewed in the axial direction in fig. 7. The first convex portion 12c and the second convex portion 12b regulate the rotation of the mount 10, respectively, and thereby, even if one dimensional tolerance is increased, the looseness of the mount 10 with respect to the attachment member 12 can be suppressed. For example, the clearance between the second projection 12b and the head 22 may be set smaller or larger than the clearance between the first projection 12c and the hole 32.

By inserting the first convex portion 12c into the hole portion 32 inside the outer tube portion 20 and restricting the movement of the fastener 10, the first convex portion 12c can support the outer tube portion 20, the inner tube portion 24, and the coupling portion 28, and stabilize the fastener 10. Further, since the side surfaces of the outer cylinder 20, the inner cylinder 24, and the coupling portion 28 are used for rotation restriction, a structure for rotation restriction can be easily provided.

The first convex portion 12c extends in the first direction D1 across the center of the hole portion 32. The first convex portion 12C abuts or approaches the inner surface of the hole portion 32 at two positions separated by a line L1 linking the shaft center C1 of the fastener 10 and the center C2 of the first convex portion 12C. Further, the second convex portion 12b abuts against or approaches the pair of protrusions 36 of the head portion 22 at two positions separated by a line L2 connecting the center C3 and the shaft center C1 of the second convex portion 12b sandwiching the head portion 22. The center C3 of the second convex portion 12b is located at the center of the portion of the second convex portion 12b that overlaps with the head portion 22 in the first direction D1. Accordingly, when the fixture 10 is to be rotated in one direction around the shaft, the one end 40a of the first projection 12c abuts against the inner surface of the hole 32 to restrict the rotation, and when the fixture 10 is to be rotated in the other direction, the other end 40b of the first projection 12c abuts against the inner surface of the hole 32 to restrict the rotation, and the rotation of the fixture 10 in both directions around the shaft can be restricted only by the first projection 12 c.

Since the plurality of protrusions 36 are in contact with or close to the pair of second convex portions 12b, respectively, the movement of the anchor 10 in the first direction D1 is restricted by the second convex portions 12b, and the offset of the anchor 10 in the first direction D1 can be suppressed. Further, the first projecting portion 12c abuts or approaches the inner surface of the hole portion 32 in the second direction D2, whereby the movement of the fastener 10 in the second direction D2 is restricted by the first projecting portion 12c, and the displacement of the fastener 10 in the second direction D2 can be suppressed. This suppresses the movement of the fixture 10 fixed to the mounting member 12, and facilitates the insertion of each of the plurality of fixtures 10 fixed to the mounting member 12 into the mounting hole 14a of the mounted member 14.

The length of the first convex portion 12c in the first direction D1 is longer than the length of the void 34 in the second direction D2. That is, the void portion 34 is formed so that the first convex portion 12c cannot enter. This can prevent the first convex portion 12c from being inserted into the void portion 34 and the elastic locking portion 30 from being hardly bent. Further, the first convex portion 12c can be prevented from being erroneously inserted into the void portion 34.

Fig. 8 is a perspective view of a fastener 100 according to a modification. Fig. 8 (a) is a perspective view of the fastener 100 as viewed from above, and fig. 8 (b) is a perspective view of the fastener 100 as viewed from below. In the fixture 100 according to the modification, the coupling portion 128 and the hole 132 have different shapes from the fixture 10 shown in fig. 1 (a).

The connecting portion 128 is formed in a wall shape and connects the outer tube portion 20 and the inner tube portion 24. The coupling portion 128 divides the inside of the outer cylinder 20 into halves to define a hole 132. The hole 132 is located between the outer tube portion 20 and the inner tube portion 24, is defined by the coupling portion 128, the outer tube portion 20, and the inner tube portion 24, and has an arc-shaped portion formed by the outer peripheral surface of the inner tube portion 24.

Fig. 9 is a view for explaining an attachment structure of the mount 100 of the modification to the attachment member 112. Fig. 9 shows a state before being mounted on the mounted member 14 in a state seen from the back side of the mounting member 112.

The mounting member 112 has a screw insertion hole (not shown), a first projection 114, and a second projection 116. The first convex portion 114 is curved so as to surround the inner tube portion 24, and is formed in a pair of wall shapes. The second protrusions 116 are provided in a pair with the first protrusions 114 therebetween, and are formed in a wall shape and extend parallel to each other. The direction in which the pair of first protrusions 114 face is the same as the direction in which the pair of second protrusions 116 face.

The pair of first protrusions 114 are inserted into the pair of holes 132, respectively, and the first protrusions 114 are close to the inner cylindrical portion 24 and the connection portion 128, which are inner surfaces of the holes 132. The pair of first protrusions 114 is shaped along the outer peripheral surface of the inner cylindrical portion 24, and surrounds the inner cylindrical portion 24, thereby suppressing the movement of the anchor 100 in the first direction D1 and the second direction D2 along the rear surface of the mounting member 112.

Since both ends of the first projection 114 are close to the coupling portion 128, when the fixture 100 is about to pivot, the coupling portion 128 abuts against the first projection 114 to restrict movement of the fixture 100 in both rotational directions. The second protrusion 116 restricts the movement of the fastener 100 in the first direction D1 by sandwiching the head 22. Further, the second protrusion 116 abuts against the outer peripheral surface of the head 22 to restrict the movement of the fixing member 100 in both rotational directions.

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

Industrial applicability

Description of reference numerals:

10: a fixing member;

12: a mounting member;

12 a: inserting through holes;

12 c: a first convex portion;

12 b: a second convex portion;

14: an installed member;

14 a: mounting holes;

16: a screw;

20: an outer cylinder portion;

22: a head portion;

24: an inner cylinder part;

26: a threaded hole;

28 a: a first connecting portion;

28 b: a second coupling portion;

30: an elastic locking part;

32: a hole portion;

34: a void portion;

36: a protrusion portion;

38: and a side rib.

Claims

1. A fixture fixed to a mounting member by a screw, the fixture comprising:

an inner cylinder part which can screw the screw thread;

an outer tube section surrounding the inner tube section; and

a coupling part for coupling the inner tube part and the outer tube part,

the fixing member abuts against or approaches a projection formed on the mounting member in a state of being fixed to the mounting member, thereby restricting movement of the fixing member in both rotational directions around the shaft.

2. The fixing member according to claim 1, further comprising:

and a hole portion, which is located between the inner tube portion and the outer tube portion, and into which a first projection formed on the mounting member can be inserted.

3. The fixture according to claim 2,

the protruding portion abuts against or approaches the inner surface of the hole portion at two positions separated by a line connecting the axial center of the fastener and the center of the protruding portion.

4. A fixture according to claim 2 or 3,

the outer tube section abuts against or approaches a second projection formed on the mounting member located outside the outer tube section in a state of being fixed to the mounting member,

the movement of the mount in a first direction parallel to the mounting surface of the mounting member is restricted by the first protrusion, and the movement of the mount in a second direction parallel to the mounting surface of the mounting member and orthogonal to the first direction is restricted by the second protrusion.

5. The fixture according to any one of claims 2 to 4,

the outer cylinder portion is formed in a square cylinder shape,

the connecting portion forms the hole portion and the void portion by partitioning an inner side of the outer tube portion,

the void portion is formed so that the projection cannot enter.

6. The fixture according to any one of claims 1 to 5,

after the fastener is fixed to the mounting member by a screw, the outer tube portion is inserted into the mounting hole of the member to be mounted, and the mounting member is mounted to the member to be mounted.