JP2526967Y2 - Coupling device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling device used for attaching a junction block, a fuse box, an electric connection box, or the like to a vehicle body panel or the like.

[0002]

2. Description of the Related Art As a conventional coupling device of this type, for example, there is one shown in FIG. 16 described in Japanese Utility Model Laid-Open No. 2-5284. That is, this coupling device comprises a bracket 1 as a mounting body and a guide 3.
Is fixed to, for example, a vehicle body panel or the like, and the guide 3 is provided on, for example, a connector 5 as an attached body. The guide 3 is provided with a pair of left and right parts having an L-shaped cross section, and the back side in the insertion direction is connected to a stopper wall 7 having an L-shaped cross section like the guide 3. The distal end side of the bracket 1 is an insertion portion 9 having a flat plate shape so as to be inserted into the guide 3. Further, a projection 11 as a locking portion is provided on the surface of the connector between the guides 3, and an engagement hole 13 is provided on the bracket 1 as an engagement portion that engages with the projection 11 when the insertion is completed. . When fixing the connector 5 to the vehicle body panel, the guide 3 is opposed to the bracket 1, and the insertion portion 9 of the bracket 1 is interposed between the guides 3.
When the insertion is relatively performed, the projection 11 engages with the engagement hole 13 in the insertion completed state, and the insertion state is locked.

[0003]

An invention is, however, in the structure as described above, to facilitate insertion between the width dimension T ₁ and T ₂ of the left and right guide 3 and the insertion portion 9 of the bracket 1 Therefore, there is a relationship of T ₁ > T ₂ . Further, a predetermined clearance exists between the projection 11 and the engagement hole 13 to facilitate the engagement. Therefore, the presence of these clearances allows the guide 3 to move relatively but slightly with respect to the bracket 1, and may cause abnormal noise due to vehicle vibration or the like.

[0004] Accordingly, the present invention aims to provide a coupling device capable of preventing abnormal noise.

[0005]

In order to solve the above problems, the present invention is directed to a pair of left and right guides having an L-shaped cross section formed on one of a mounting body and a mounting body, and a pair of guides formed on the other side. The insertion portion to be inserted, the protruding locking portion formed on one of the mounting body or the attached body, and the locking portion formed on the other side in a state where the insertion of the insertion portion into the guide is completed. A flexible portion is provided on both left and right sides of at least one of the guide and the insertion portion, and the flexible portion is elastically contacted with the other in the left-right direction after the insertion is completed, It is characterized in that it is formed at a position where it comes into elastic contact even before the completion.

[0006]

The insertion portion is inserted between the pair of left and right guides, and when the insertion is completed, the engagement portion is engaged with the locking portion. A flexible portion formed on at least one of the guide and the insertion portion elastically contacts the other, and absorbs a clearance between the guide and the insertion portion.

[0007]

Embodiments of the present invention will be described below.

The coupling device shown in FIGS. 1 to 5 is also used for fixing, for example, a connector 5 as an attachment body to a vehicle body panel via a bracket 1 as an attachment body.
The basic configuration is the same as that shown in FIG. 16, and the same components are denoted by the same reference numerals, and redundant description will be omitted.

On the other hand, in the embodiment of the present invention, the side wall 3a is cut out with a slit 15 at the longitudinally intermediate portion of the left and right guide 3, and a flexible portion 17 is provided. The flexible portion 17 is formed so as to protrude toward the protrusion 11 side as a locking portion, and the protruding state is performed with an inclined portion 19 as shown in FIG. T ₃ is smaller than the width T ₂ of the insertion portion 9, and the interval T ₄ between the roots of the flexible portion 17 is formed larger than the width T _{2 of the} insertion portion 9.

The flexible portion 17 has an inclined portion 19 formed with an R when viewed from the planar direction of the guide 3, so that the insertion portion 9 can be easily inserted.

When the connector 5 is mounted on the vehicle body panel, the guide 3 is opposed to the bracket 1. If the connector 5 is inserted as it is, the insertion portion 9 of the bracket 1 is relatively inserted into the guide 3, and when the insertion is completed, the protrusion 11 Engages with the engagement hole 13 as an engagement portion.

Further, as shown in FIG.
The upper part of the flexible part 17 is slightly bent outward of the bracket 1.
Elastically contact the upper side of the insertion portion 9 to absorb the clearance between the two guides 3 and the bracket 1. Therefore, the bracket 1 and the guide 3 are firmly connected to each other even if there is a vehicle vibration or the like, and no abnormal noise is caused. Also, the flexible portion 1
Since the guide 7 is formed by cutting the guide 3 by the slit 15, a sufficiently high one can be obtained even in a small space.
Since the load F is received from the inclined portion 19, the play between the bracket 1 and the guide 3 can be firmly prevented.

FIG. 6 shows a modification of the number and positions of the flexible portions 17 in comparison with the arrangement and the number of the above-described embodiment shown in FIG. 6 (a). That is, FIG. 6B shows a configuration in which two flexible portions 17 are provided on each of the left and right side walls 3a, for a total of four. Therefore, in this example, the insertion portion 9 is pressed at the four points on the left and right sides, and the play between the bracket 1 and the guide 3 can be left more firmly.

In the case of FIG. 6C, in addition to the example of FIG. 6B, two flexible portions 17 are also provided on the stopper wall 7 side. Therefore, in this modified example, the insertion portion 9 can be pressed at four places on both the left and right sides, and can also be pressed on both ends of the insertion portion 9, so that rattling can be more firmly prevented. .

In the case of FIG. 6D, in addition to the example of FIG. 6A, one flexible portion 17 is provided at the center of the stopper wall 7. Therefore, in this modified example, the insertion portion 9 is pressed at two points on both the left and right sides, and furthermore, a three-point support is provided at a central portion on the distal end side, thereby firmly preventing rattling between the bracket 1 and the guide 3. be able to.

FIG. 7 shows another embodiment. In this embodiment, the insertion portion 9 having the engagement hole 13 on the connector 5 side
Provided on the vehicle body side, the guide 3, the engagement protrusion 11 and the flexible portion 1
7 is provided.

Therefore, also in this case, rattling can be prevented by the same operation as in the above embodiment.

FIGS. 8 to 10 show still another embodiment.

FIG. 8 is a perspective view showing a state before the guide 3 is inserted into the bracket 1, FIG. 9 is a plan view showing a state where the insertion portion 3 is inserted into the bracket 3, and FIG.
10 shows a partial cross-sectional view taken along line XX of FIG. 8 to 10, the left and right guides 3 are independent from each other, and a protrusion 21 for a stopper is protruded from the surface of the connector 5 on the back side in the insertion direction. An elastic arm-shaped flexible portion 23 is provided on the back side in an inclined manner. On the other hand, chamfers 9a corresponding to the inclination of the flexible portion 23 are formed on both sides of the front end of the insertion portion 9 of the bracket 1.

Therefore, in this embodiment, when the insertion portion 9 of the bracket 1 is inserted into the left and right guide 3 from the state of FIG. 8 as shown in FIG. The flexible portion 23 elastically contacts the left and right chamfers 9 a of the bracket 1. Therefore, as shown in FIG. 10, the projection 11 comes into contact with the engagement hole 13 so that the clearance between the two is absorbed, and the projection 11 is fixed without rattling. Bracket 1
In the insertion of the guide portion 3 and the insertion portion 9 in the normal state, the insertion is completed by the chamfer 9a abutting on the flexible portion 23, but when the insertion is more than necessary, the tip of the insertion portion 9 Abuts on the ridge 21 of the connector 5 to restrict excessive insertion. In this way, if the insertion of the insertion section 9 is regulated,
Thereafter, the elastic portion 23 returns to the state shown in FIG.

FIGS. 11 to 14 relate to still another embodiment, and FIGS. 11 to 13 correspond to FIGS.
, And a perspective view, a plan view, and FIG.
14 is a partial sectional view taken along the line XIII-XIII of FIG. And in this example,
The flexible portion 25 is formed over the left and right guides 3, and the center curved portion 25 a and the left and right inclined portions 25 b are connected to the arm 2.
5c is formed continuously and integrally. The left and right sides of the insertion portion 9 of the bracket 1 are R9b.

Therefore, in this embodiment, the left and right inclined portions 25b of the flexible portion 25 perform the same operation as the flexible portion 23 of FIG.
As described above, the clearance between the projection 11 and the engagement hole 13 can be absorbed.

In this embodiment, the guide 3 is inserted into the insertion portion 9.
When too much is inserted, the central curved portion 25a, the left and right inclined portions 25b, and the arms 25c bend as shown by the arrow P as shown in FIG. 14, and it is possible to restrict unnecessary insertion into the insertion portion 9. . Also, the elastic restoring force Q of the flexible portion 25
As a result, the state shown in FIG. 14 shifts to the state shown in FIG. 12, and the clearance between the projection 11 and the engagement hole 13 is absorbed as described above, and a firm fixing without rattling can be performed.

FIG. 15 shows a modification of the bracket 1. In this modification, flexible portions 27 are provided on both sides of the insertion portion 9. Therefore, in this embodiment, even if the left and right guides 3 do not have the flexible portions, the flexible portions 27 of the insertion portion 9 can be used.
With the function described above, substantially the same operation and effect as in FIG. 1 can be obtained. 8 and 11, or the flexible portion 1 of the left and right guide shown in FIGS. 6 (c) and 6 (d).
By using in combination with the one from which 7 has been removed, a firm fixation without rattling can be achieved.

[0025]

As is clear from the above, according to the structure of the present invention, when the insertion is completed, the flexible portion provided on at least one of the guide and the insertion portion is elastically contacted with the other, so that the two are loose. Sticking can be prevented. Moreover, even if the gap in the left-right direction between the locking portion and the engaging portion is small, the flexible portion elastically contacts at least in the left-right direction before the insertion is completed, and the position between the locking portion and the engaging portion. Since the regulation is performed, the insertion is easy and the rattling prevention function can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an exploded perspective view according to an embodiment of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a side view of a guide showing a back surface of a flexible portion.

FIG. 6 is a plan view showing a modification of the arrangement and the number of flexible portions.

FIG. 7 is an exploded perspective view according to another embodiment.

FIG. 8 is a perspective view according to another embodiment.

FIG. 9 is a plan view according to another embodiment.

FIG. 10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a perspective view according to still another embodiment.

FIG. 12 is a plan view according to the embodiment.

FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12;

FIG. 14 is an operation explanatory view.

FIG. 15 is a perspective view showing a modification of the bracket.

FIG. 16 is an exploded perspective view according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bracket 3 Guide 3a Side wall 5 Connector (block) 9 Insertion part 11 Projection 13 Engagement hole (engagement part) 15 Slit 17,23,25,27 Flexible part

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of left and right guides having an L-shaped cross section formed on one of a mounting body and a mounting body, an insertion portion formed on the other side and inserted into the guide, and one of the mounting body or the mounting body. And a protrusion formed on the other side and corresponding to the position of the left and right intermediate portion of the pair of guides, and a protrusion formed on the other side and engaged with the lock portion in a state where insertion of the insertion portion into the guide is completed. A flexible portion is provided on at least one of the left and right sides of the guide or the insertion portion, and the flexible portion is elastically contacted with the other at least in the left-right direction in a state where the insertion is completed. A coupling device formed at least at a position where it is elastically contacted in the left-right direction even before the coupling.