JP2023119155A - Fixing structure - Google Patents

Abstract

To provide a fixing structure capable of preventing a stud bolt from entering obliquely to appropriately attach an attachment member to a member to be attached, when attaching the attachment member to the member to be attached having the stud bolt.SOLUTION: A fixing structure 10 comprises a body part 11 into which a stud bolt 50 is inserted from one side to the other side along an axial direction, and a pair of first locking piece parts 14c, 14d that are locked in a bolt groove part 51 of the stud bolt 50 inserted into the body part 11. The first locking piece parts 14c, 14d include a wing part 141 that is elastically deformable, and a claw part 142 locked to the bolt groove part 51. The wing part 141 has an end part on the other side in the axial direction fixed adjacent to a bolt insertion hole 13 of an end surface wall part located on the other side in the axial direction.SELECTED DRAWING: Figure 4

Description

The present invention relates to fixing structures.

As a technique for attaching a mounting member such as a wire harness, a pipe, or a heat insulating material to a member to be mounted such as an automobile body, for example, Patent Document 1 discloses a stud receiving hole for receiving a stud having a screw or a circumferential groove. and a stud locking portion that locks onto the screw of the stud or the like, and the stud locking portion moves toward the base of the stud when a force is applied to separate the mounting member from the mounted member. A locking device is disclosed that provides a projection that limits the movement of the body.

Further, in Patent Document 2, as a retainer that retains the stud by being engaged with the thread or circumferential groove of the stud, it has a pair of side walls forming a stud receiving space for receiving the stud and a stud retaining piece, A retainer is disclosed in which the flexible piece constituting the stud engaging piece has a specific shape.

Further, in Patent Document 3, as a fixture that engages and fixes a stud bolt, a locking piece that engages with the stud bolt and a locking piece that engages the claw portion of the locking piece with the stud bolt are disclosed. A fastener is disclosed having a biasing spring strip.

JP-A-11-173320 JP 2009-185902 A JP-A-9-32833

[0004] When attaching the above-described locking device to the stud bolt, the stud bolt may be inserted obliquely, preventing normal locking.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended to prevent the oblique entry of stud bolts when attaching a mounting member to a member to be mounted having a stud bolt. An object of the present invention is to provide a fixing structure that can properly perform

In order to achieve the above object, a fixing structure according to the present invention is a main body portion provided on a mounting member, through which a stud bolt fixed to a member to be mounted is inserted axially from one side to the other side. and a pair of first locking pieces provided in the main body portion facing each other along the width direction intersecting with the axial direction and locked to the bolt groove portions of the stud bolts inserted through the main body portion. wherein the main body portion is opposed along the width direction to a pair of end wall portions located opposite to each other along the axial direction and having bolt insertion holes through which the stud bolts are inserted. a pair of side wall portions respectively positioned and extending between the pair of end wall portions along the axial direction; surrounded by the pair of end wall portions and the pair of side wall portions; a bolt receiving space for receiving the stud bolt inserted through the bolt insertion hole, the first locking piece projecting from the side wall toward the bolt receiving space and extending toward the other side in the axial direction; A wing portion that extends toward the side and is elastically deformable, and a claw portion that protrudes from the wing portion and is engaged with the bolt groove portion, and the wing portion extends along the axis line. The end portion on the other side in the axial direction is fixed adjacent to the bolt insertion hole of the end wall portion positioned on the other side in the axial direction.

The fixing structure according to the present invention is said to be capable of properly attaching the mounting member to the mounting member by preventing the oblique entry of the stud bolt when mounting the mounting member to the mounting member having the stud bolt. Effective.

1 is a perspective view showing a schematic configuration of a fixing structure according to an embodiment; FIG. FIG. 2 is a perspective view showing a schematic configuration of the fixing structure (when the stud bolt is inserted) according to the embodiment. FIG. 3 is a side view showing a schematic configuration of the fixing structure according to the embodiment. FIG. 4 is a side view showing a schematic configuration of the fixing structure (when the stud bolt is inserted) according to the embodiment. FIG. 5 is a cross-sectional view of a fixing structure according to an embodiment.

EMBODIMENT OF THE INVENTION Below, embodiment which concerns on this invention is described in detail based on drawing. In addition, this invention is not limited by this embodiment. In addition, components in the following embodiments include components that can be easily replaced by those skilled in the art, or components that are substantially the same.

In the following description, among the first direction, the second direction, and the third direction that intersect each other, the first direction will be referred to as the "axial direction X", and the second direction will be referred to as the "width direction Y". The third direction is called "depth direction Z". Here, the axial direction X, the width direction Y, and the depth direction Z are substantially orthogonal to each other. The axial direction X typically corresponds to the direction in which the stud bolt is inserted into the main body of the fixing structure, and corresponds to the direction in which the pair of end wall portions face each other. The width direction Y typically corresponds to the direction in which the pair of side wall portions face each other, and corresponds to the direction in which the pair of locking pieces correspond to each other. Unless otherwise specified, each direction used in the following description is the direction in which each part is assembled with each other.

[Embodiment]
One embodiment of the fixing structure according to the present invention will be described based on FIGS. 1 to 5. FIG. In FIGS. 2 and 4, illustration of the member to be attached is omitted, and only the stud bolt is shown.

As shown in FIGS. 1 and 2, the fixing structure 10 according to the present embodiment is provided on the mounting member 1 and engages a stud bolt 50 fixed to a mounted member (not shown). The stud bolt 50 has a helical or annular bolt groove 51 formed in the shaft. The mounting member 1 is used, for example, to fix a cable or the like to a mounted member such as a vehicle body panel. In the mounting member 1, a holding member 20 for holding a cable or the like and a fixing structure 10 are integrally molded with an insulating resin material. The holding member 20 constitutes a protector that is wrapped around a cable or the like to protect it and that regulates the wiring route of the cable or the like. The holding member 20 has a semicylindrical first holding portion 21 and a second holding portion 22 , and the first holding portion 21 and the second holding portion 22 are connected by a connecting portion 25 . The second holding part 22 forms a cylindrical holding part together with the first holding member by bending at the connecting part 25 . The holding member 20 is fixed with the first holding portion 21 and the second holding portion 22 using the holding portions by inserting and engaging the engaging portion 23 into the insertion opening 24 . Note that the configuration of the holding member 20 is merely an example, and a holding member having another configuration may be employed.

The fixing structure 10 includes a main body portion 11 through which a stud bolt 50 fixed to a member to be attached is inserted from one side toward the other side along the axial direction X, and a width direction crossing the axial direction X of the main body portion 11. A pair of upper locking piece portions 14a, 14b and upper locking piece portions 14c, 14d are provided facing each other along Y and locked in the bolt groove portion 51 of the stud bolt 50 inserted through the main body portion 11. A pair of lower locking pieces 14c and 14d positioned on the other side in the axial direction X are provided. In other words, the upper locking piece portions 14a and 14b are locking piece portions positioned on one side in the axial direction X (bolt insertion hole 12 side) from the first upper locking piece portions 14a and 14b. can. In the fixing structure 10 of this embodiment, the pair of upper locking piece portions 14a and 14b correspond to the pair of second locking piece portions, and the pair of lower locking piece portions 14c and 14d correspond to the pair of first locking piece portions. Equivalent to one piece. In the fixing structure 10, the stud bolt 50 is inserted from one side, ie, the bolt insertion hole 12, and is inserted toward the other side, ie, the bolt insertion hole 13 side. It penetrates so as to protrude from the insertion hole 13 .

The body portion 11 is positioned opposite to each other along the axial direction X and has a pair of end wall portions 11a and 11d formed with bolt insertion holes 12 and 13 through which the stud bolts 50 are inserted, respectively, and a pair of end wall portions 11a and 11d along the width direction Y. a pair of side wall portions 11b and 11c extending between the pair of end wall portions 11a and 11d along the axial direction X and facing each other along the depth direction Z, and a pair of struts 16a, 16b extending along the axial direction X between the pair of end wall portions 11a, 11d. A space defined by the pair of end wall portions 11a and 11d and the pair of side wall portions 11b and 11c constitutes a bolt receiving space portion 11e for receiving the stud bolt 50 inserted through the bolt insertion hole 12. do.

The end wall portion 11a is formed with a bolt insertion hole 12 through which the stud bolt 50 is inserted. They are arranged facing each other along the direction.

The side wall portion 11b extends between the end wall portions 11a and 11d. The pieces 14d are arranged side by side from the end wall portion 11a side to the end wall portion 11d side.

The side wall portion 11c extends between the end wall portions 11a and 11d, and the wall surface of the side wall portion 11c on the side of the bolt receiving space portion 11e is provided with an upper locking piece portion 14a and a lower locking piece. The portions 14c are arranged side by side from the end wall portion 11a side to the end wall portion 11d side.

The struts 16a and 16b are provided extending between the end wall portions 11a and 11d. The struts 16a and 16b are formed so that their widths gradually widen from one side (bolt insertion hole 12 side) to the other side (bolt insertion hole 13 side) in the axial direction X, and the bolt insertion holes 12 and 13 are formed. concatenate Thereby, the fixing structure 10 prevents the stud bolt 50 from obliquely entering in the direction of the struts 16a and 16b.

The lower locking piece portions 14c and 14d are formed to protrude from the side wall portions 11b and 11c toward the bolt receiving space portion 11e and extend toward the other side in the axial direction X. As shown in FIG. The lower locking pieces 14 c and 14 d include elastically deformable wings 141 and claws 142 protruding from the wings 141 and locked to the bolt grooves 51 . The wings 141 of the lower locking pieces 14c and 14d are fixed so that the ends on the other side in the axial direction X are adjacent to the bolt insertion holes 13 of the end wall portion 11d located on the other side in the axial direction. . The width of the lower locking pieces 14c and 14d along the depth direction Z is slightly larger than the diameter of the stud bolt 50, and is formed to be approximately 5 mm, for example.

The lower locking pieces 14c and 14d bend when the stud bolt 50 is inserted, thereby reducing the force (insertion force) required when the stud bolt 50 is inserted. If the thickness of the lower locking pieces 14c and 14d is reduced, the insertion force of the stud bolt 50 can be reduced. The direction of insertion of the stud bolt 50 can be returned to the axial direction by the elastic forces of 14 c and 14 d, and the tip of the stud bolt 50 cannot be passed through the bolt insertion hole 13 . In the present embodiment, in order to restrict the insertion direction of the stud bolt 50, the wings 141 of the lower locking pieces 14c and 14d have their ends on the other side in the axial direction X positioned on the other side in the axial direction X. It is fixed adjacent to the bolt insertion hole 13 of the end wall portion 11d. By fixing the ends of the wings 141 of the lower locking pieces 14c and 14d adjacent to the bolt insertion holes 13, the insertion of the tip of the stud bolt 50 into the bolt insertion holes 13 can be guided. . Further, the wing portions 141 of the lower locking piece portions 14c and 14d can be made thinner than the wing portions 141 of the upper locking piece portions 14a and 14b, which will be described later. By thinning the wings 141 of the lower locking pieces 14c and 14d, the insertion force of the stud bolt 50 can be reduced, but there are problems of damage due to insertion of the stud bolt 50 and oblique insertion of the stud bolt 50. occurs. In the fixing structure 10 of the present embodiment, since the ends of the wings 141 of the lower locking pieces 14c and 14d are fixed adjacent to the bolt insertion holes 13, the wings of the lower locking pieces 14c and 14d are fixed. Even if the thickness of 141 is reduced, it is possible to prevent damage due to insertion of the stud bolt 50 and oblique insertion of the stud bolt 50 . As a result, the fixing structure 10 prevents the oblique entry of the stud bolt 50 when attaching the mounting member 1 to the mounting member having the stud bolt 50, and properly mounts the mounting member 1 to the mounting member. can be done. From the viewpoint of insertability of the stud bolt 50 into the bolt insertion hole 13, the wings 141 of the lower locking pieces 14c and 14d may be fixed to the bolt insertion hole 13 without steps (flush). preferable.

The upper locking pieces 14a, 14b are formed to protrude from the side wall portions 11b, 11c toward the bolt receiving space portion 11e and extend toward the other side in the axial direction X. As shown in FIG. The second locking pieces 14 a and 14 b include elastically deformable wings 141 and claws 142 projecting from the wings 141 and locked to the bolt grooves 51 . The width of the upper locking pieces 14a, 14b along the depth direction Z is slightly larger than the diameter of the stud bolt 50, for example, about 5 mm, like the upper locking pieces 14c, 14d.

As with the lower locking pieces 14c and 14d, the upper locking pieces 14a and 14b bend when the stud bolt 50 is inserted, thereby reducing the insertion force of the stud bolt 50. As shown in FIG. In order to adjust the insertion force of the stud bolt 50, the thickness of the upper locking pieces 14a, 14b is adjusted. The portion 141 is formed thicker than the wings 141 of the lower locking pieces 14c and 14d. Even when the lower locking pieces 14c and 14d are made thin to fix the ends of the wings 141 adjacent to the bolt insertion holes 13 and the stud bolts 50 are inserted into the lower locking pieces 14c and 14d, the stud bolts 50 are prevented from bending. However, if the wings 141 of the upper locking pieces 14a and 14b are thin like the first locking pieces 14c and 14d, the insertion direction of the stud bolt 50 cannot be controlled and the stud There is a risk that the bolt 50 will enter obliquely. Therefore, it is preferable that the wing portions 141 of the upper locking piece portions 14a and 14b are formed thicker than the wing portions 141 of the lower locking piece portions 14c and 14d.

In this embodiment, the stud bolt 50 is locked by the lower locking piece portions 14c, 14d and the upper locking piece portions 14a, 14b, but high fixing strength of the mounting member to the mounted member is not required. In some applications, the fixing structure 10 need not be provided with upper locking pieces 14a, 14b. Further, the fixing structure 10 may be provided with a pair of third locking pieces between further locking pieces, for example the lower locking pieces 14c, 14d and the upper locking pieces 14a, 14b. .

Reference Signs List 1 mounting member 10 fixing structure 11 body portion 11a, 11d end wall portion 11b, 11c side wall portion 11e bolt receiving space portion 12, 13 bolt insertion hole 14a, 14b upper locking piece portion (second locking piece portion)
14c, 14d lower locking piece (first locking piece)
16a, 16b Strut 20 Holding member 21 First holding part 22 Second holding part 23 Engagement part 24 Insertion opening 25 Connection part

Claims (2)

a body portion provided on the mounting member and through which the stud bolt fixed to the member to be mounted is inserted from one side toward the other side along the axial direction;
A pair of first locking pieces are provided on the main body so as to face each other along a width direction intersecting with the axial direction, and are locked to bolt grooves of the stud bolts inserted through the main body. ,
The main body is
a pair of end wall portions located opposite each other along the axial direction and each having a bolt insertion hole through which the stud bolt is inserted;
a pair of side wall portions facing each other along the width direction and extending between the pair of end wall portions along the axial direction;
a bolt receiving space formed by being surrounded by the pair of end wall portions and the pair of side wall portions and receiving the stud bolt inserted through the bolt insertion hole;
The first locking piece is
an elastically deformable wing portion that protrudes from the side wall portion toward the bolt receiving space portion and extends toward the other side in the axial direction;
a pawl portion formed to protrude from the wing portion and engaged with the bolt groove portion;
The feather portion has an end portion on the other side in the axial direction adjacent to and fixed to the bolt insertion hole of the end wall portion located on the other side in the axial direction,
Fixed structure. The bolt of the stud bolt that is provided facing the main body portion along the width direction, is located on the one side in the axial direction from the first locking piece portion, and is inserted through the main body portion. A pair of second locking pieces to be locked in the groove,
The first locking piece portion is thinner than the second locking piece portion,
The fixing structure according to claim 1.

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