JPH051686Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a structure for mounting parts, and more specifically, the present invention relates to a structure for attaching parts, and more specifically, the present invention relates to a structure for attaching parts, and more specifically, to a body of an automobile or the like from which a plurality of fixing bolts protrude, a hole into which the fixing bolts are fitted is formed. This invention relates to a structure for attaching members for various uses.

(Prior Art) Such a mounting structure is used, for example, to attach a member such as an accelerator pedal stopper of an automobile, and an example thereof is shown in FIGS. 9 and 10.
There is one shown in the figure. That is, the member 1 made of synthetic resin
is equipped with two boss holes 2a, 2b, and after fitting the two stud bolts 3 protruding from the body side into these boss holes 2a, 2b, respectively, the stud bolts 3 protruding from the boss holes 2a, 2b are inserted. A nut 4 for fixing the member is screwed onto the tip of the member 3. When welding two stud bolts 3 to the body side, it is unavoidable that the pitch P between the stud bolts 3 varies due to errors in welding positions. For this reason, one boss hole 2a is formed into a round hole that fits closely into the stud bolt 3 for positioning, and the other boss hole 2b is used to absorb the variation in pitch P, and both boss holes 2a and 2b are formed. It was formed in the shape of a long hole along the connecting straight line A.

(Problem that the invention attempts to solve) However, in the conventional nut tightening method described above, member 1
In addition, a plurality of nuts 4 are required, which goes against the demand for cost reduction by reducing the number of parts.
Further, after the stud bolts 3 are fitted into the boss holes 2a and 2b, additional work is required to tighten the nuts, which is contrary to the demand for improved workability by reducing the number of assembly steps.

By the way, if a retaining tab that can elastically engage with the thread groove of the bolt is integrally formed on the inner periphery of the boss hole for fitting the bolt in the synthetic resin component, the attachment of the component can be completed simply by fitting the bolt into the boss hole, and the above-mentioned problems do not occur. However, with this method, the problem arises of how to deal with variations in the pitch between the bolts.

Therefore, the present invention aims to solve this problem.

(Means for Solving the Problems) The means for achieving the above object is based on a vehicle body for various uses in which a body of an automobile or the like from which a plurality of mounting bolts protrude is provided with a plurality of holes for fitting each of the bolts. The structure is for attaching a member, and among the plurality of holes, one reference hole has a retaining pawl that elastically engages with the thread groove of the bolt, and a retaining pawl that elastically engages with the thread groove of the bolt. At least two abutting against the outer periphery from a predetermined direction
A wide positioning rib is provided on the inner periphery of each hole other than the reference hole along a straight line connecting the hole and the reference hole, and a width is provided at any position in the width direction. The bolt is provided with a retaining pawl that can be elastically engaged with the thread groove of the bolt.

(Function) When attaching a member, the center of attachment of the member is determined by the bolt that fits into the reference hole, and lateral displacement of the member with respect to the body does not occur.

Variations in pitch between the bolt fitted in the reference hole and the bolts fitted in each of the other holes are absorbed by wide retaining claws provided in each of the other holes.

(Embodiment) Next, a first embodiment of the present invention will be described based on FIGS. 1 to 4.

As shown in FIG. 4, two stud bolts 6 are fixed to a body 5 of an automobile or the like. The diameter of the stud bolt 6 (thread diameter) is x, and the distance between the axes of the two stud bolts 6 is set to be y. However, this distance y may vary to some extent based on errors in the welding work of the stud bolts 6.

On the other hand, a member 7 made of synthetic resin that has a predetermined purpose (for example, an accelerator pedal stopper for automobiles) is a hollow member whose outer periphery is constituted by a side wall 8 and a top plate 9. A vertical hole 10 is provided. A reference boss 11 is integrally formed inside one of the pair of vertical holes 10, and an adjustment boss 12 is integrally formed inside the other. These bosses 11 and 12 are formed in a vertically cylindrical shape, and have a truss-shaped guide portion 1 provided at the lower end opening.
It is integrally continuous with the vertical hole 10 via 3. The width between the axes of both bosses 11 and 12 is the same as the set distance y between the axes of the stud bolt 6.

On the inner periphery of the reference boss 11, a pair of retaining pawls 14 and four positioning ribs 15 are respectively protruded in the axial direction. The claw 14 is the second
As shown in the figure, a thin plate-like tongue protrudes from a direction perpendicular to the straight line B connecting the axis of the boss 11 and the axis of the boss 12, and projects obliquely upward as shown in Figure 3a. It is a piece, and its pointed end is adapted to engage with a threaded groove of a stud bolt 6 fitted into a boss 11. The claw 14 can be elastically deformed in the thickness direction. Next 4 ribs 15
are vertical protrusions that protrude from positions that divide the inner circumference of the boss 11 into approximately four equal parts, and each rib 1
The top surface of 5 is formed along the circumferential surface of the diameter x.

On the inner periphery of the adjustment boss 12, a pair of retaining pawls 16 protrude in the axial direction from a direction perpendicular to the straight line B. This pawl 16 is also a plate-like tongue piece that protrudes obliquely upward and is elastically deformable in the thickness direction, and the pointed portion at the tip engages with the thread groove of the bolt 6 fitted into the boss 12. It's getting old. The pawl 16 is formed wider along the straight line B compared to the pawl 14 described above, and therefore, even if the fitting position of the bolt 6 varies to some extent along the straight line B as shown in FIG. It is designed so that engagement with the thread groove can be performed without any problem.

This embodiment is constructed as described above and is used as follows. That is, the bosses 11 and 12 of the member 7 are fitted into the two stud bolts 6 fixed to the body 5 from above under the guidance of the guide portion 13. At this time, each boss 11, 12
Since the pawls 14 and 16 engage with the thread grooves of each stud bolt 6 to prevent it from coming off, the member 7 can be attached to the body 5 with one touch. Therefore, workability is good. Further, in this installation work, there is no need to separately prepare other types of parts. Therefore, it meets the demand for cost reduction by reducing the number of parts.

On the other hand, even if the spacing between the two stud bolts 6 varies somewhat from the original set spacing y, the wide pawl 16 on the adjustment boss 12 absorbs this variation, thereby preventing problems during assembly work. Does not occur. Moreover, since the stud bolt 6 fitted into the reference boss 11 is fixed by the rib 15,
Even if there is variation in the above set interval y, the attachment position of the member 7 to the body 5 is constant, and no lateral displacement of the member 7 occurs after attachment.

Note that other embodiments of the present invention are described below.

The positioning rib provided on the reference boss is
As long as the stud bolts can be fixedly regulated, the number and shape of the stud bolts are not limited. Regarding the shape of this rib, for example, the rib 1 shown in FIG.
7 and 17', which can come into contact with a portion of the stud bolt 18, may also be used.

The tip of the retaining pawl provided on the reference boss or adjustment boss is not arc-shaped along the thread groove of the bolt as in the first embodiment, but is shaped like the pawl 19 shown in FIG. It may be formed linearly as shown in FIG. Furthermore, in order to widen the range of adjustment of the adjustment boss to variations in the spacing of the stud bolts, the adjustment boss 20 is formed to have an oval cross-sectional shape along the straight line B, as shown in FIG. Based on this, the retaining claw 21 may be formed wider.

As shown in FIGS. 8a and 8b, the retaining claw provided on the reference boss and the adjustment boss is provided by opening a window 23 in the wall of the boss 22 and protruding the claw 24 from the edge of the window. You may also let them do so.

(Effects of the invention) The present invention can be assembled at low cost and with good workability when attaching parts for various purposes to the bodies of automobiles, etc., and can also be used to eliminate variations in the spacing of multiple mounting bolts. can be accommodated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a synthetic resin member according to a first embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3a is a cross-sectional view taken along the line X--X in FIG. 2, and FIG. 3b is a cross-sectional view taken along the line Y--Y in FIG.
Fig. 4 is a view showing the mounting state of the synthetic resin member on the body side according to the Z-Z sectional view of Fig. 2; Fig. 5 is a sectional view showing another embodiment of the positioning rib; Figs. 6 and 7 are plan views showing another embodiment of the retaining claw; Fig. 8a is a perspective view showing another embodiment of the retaining claw; Fig. 8b is a J-J sectional view of Fig. 8a; Fig. 9 is an exploded perspective view of the conventional example; and Fig. 10 is a vertical sectional view of the mounting state. 5...Body; 6...Stud bolt; 7...
Parts, 11, 12... boss, 14... claw, 15...
…Ribs, 16…Claws.

Claims (1)

[Claims for Utility Model Registration] A structure for attaching a member for various purposes having a plurality of holes for fitting each of the bolts to a body of an automobile or the like from which a plurality of mounting bolts protrude, the plurality of mounting bolts protruding from the body of a vehicle, etc. Among the holes, one reference hole has a retaining pawl that elastically engages with the thread groove of the bolt, and at least two positioning pawls that abut the outer periphery of the bolt from a predetermined direction. A wide rib is provided on the inner periphery of each hole other than the reference hole along a straight line connecting that hole and the reference hole, and a bolt can be inserted at any position in the width direction. A mounting structure for a member, characterized in that it is provided with a claw that can be elastically engaged with a thread groove and is used to prevent the member from coming off.