JP2001267758A - Structure for attaching bracket to electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for attaching bracket to electric connection box which can reduce the number of parts and assembling man-hour and, at the same time, can be reduced in cost and occupying space. SOLUTION: In this structure, a bracket 20 has an opening 23 having the prescribed width corresponding to the interval between the rails 12 of an electric connection box 10, a flexible arm section 25 protruded upward from the lower end section 23b of the opening 23, and a stopper section 23c installed to the upper end of the opening 23. As the bracket 20 moves in the attaching direction, a guide section 24 forming the upper part of an inner edge section 23a of the opening 23 is inserted into recessed sections 13 and, at the same time, the arm section 25 is slid on the locking section 14 of the box 10 and elastically deformed. Then the arm section 25 gets over the locking section 14 and the front end of the section 25 is locked to the lower edge of the locking section 14. In addition, the stopper section 23c is brought into contact with the upper end sections of the rails 12 of the box 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection box, such as a junction block (J / B) for collectively connecting a part of an electric system of an automobile or the like, to a bracket fixed to a body panel or the like. The present invention relates to a structure for mounting a bracket to an electric junction box for mounting.

[0002]

2. Description of the Related Art A conventional bracket 4 for an electric junction box 30.
The mounting structure of No. 0 was mounted via an adapter 50 as a relay member, as shown in FIG. A fitting projection 31 for attaching the adapter 50 is provided on one side wall surface of the electric connection box 30. This fitting projection 31
A pair of rail portions 32 having a predetermined interval is provided so as to protrude in the vertical direction, and a locking portion 33 is provided between each of the rail portions 32.

As shown in FIG. 7, a concave rail portion 52 and a locked portion 53 are provided on one side surface 51 of the adapter 50. Each of the rail portions 32 of the electric connection box 30 is fitted into the concave rail portion 52. The locked portion 53
Are respectively connected to the rails 3 of the electric connection box 30 by the concave rails 52.
2 is engaged with the engaging portion 33 of the electric connection box 30 in a state of being inserted. Thereby, the adapter 50 is connected to the electric connection box 3.
0 is attached.

The adapter 50 has a flexible lock 55 in an internal space 54 as shown in FIG. The flexible lock 55 is connected to the internal space 54 through the opening 56.
It is fitted into the lock hole 41 of the bracket 40 inserted therein while being elastically deformed. Thereby, the bracket 40 is locked to the adapter 50.

[0005]

In the conventional mounting structure of the bracket 40 to the electric junction box 30 described above, the bracket 40 is attached to the electric junction box 30 via the adapter 50, and the adapter 50 is required. is there. For this reason, the number of parts and the number of assembling steps are increased, leading to an increase in cost and a problem of hindering space saving.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can reduce the number of parts and the number of assembling steps, thereby reducing costs.
It is an object of the present invention to provide a structure for mounting a bracket to an electric junction box which can save space.

[0007]

The object of the present invention is to provide a bracket mounting structure for mounting a bracket to an electric connection box, wherein the electric connection box is provided between the electric connection box and a side wall of the electric connection box main body. A recess is formed, and a pair of rails having a predetermined interval, and a fitting projection including a locking portion at a predetermined position between the rails are provided, and the bracket is attached to the electrical connection box when mounting. An opening having a predetermined width corresponding to an interval between the rails, and an upper portion projecting upward from a lower end in a longitudinal direction of the opening along the opening. A flexible arm portion having a predetermined width corresponding to an interval between the rail portions and having a distal end locked by the locking portion; and a rail portion provided at an upper end of an inner edge along a longitudinal direction of the opening. With the stopper that contacts the upper end Obtain it can be solved by a bracket structure for mounting the electric connection box according to claim.

According to the bracket mounting structure to the electric connection box having the above-described structure, when the bracket is mounted to the electric connection box, the opening on the bracket side is fitted with each rail of the fitting protrusion on the electric connection box side. At the same time, a part of the inner edge of the opening is fitted into the recess, and the stopper at the upper end of the opening comes into contact with the upper end of the rail. At this time, the tip of the flexible arm on the bracket side is elastically deformed by sliding the tip of the flexible arm on the side of the latch on the side of the electric connection box. Locked.

In other words, a part of the inner edge along the longitudinal direction forming the opening on the bracket side is inserted into the recess of the fitting projection on the electric connection box side, so that the horizontal direction intersecting the mounting direction of the bracket. Movement such as displacement in the direction is restricted. In addition, the stopper on the bracket side is in contact with the upper end of the rail on the electrical connection box side, and the distal end of the flexible arm on the bracket side is locked by the locking portion on the electrical connection box side, so that the bracket The movement of the electrical junction box in the mounting direction and the removing direction is restricted. Therefore, the bracket can be securely and easily attached to the electric junction box without the intervention of a relay member such as an adapter.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a bracket mounting structure for an electric junction box according to the present invention; FIG. FIG. 1 is a perspective view showing a state before mounting the bracket of the bracket mounting structure to the electric junction box of the present embodiment, FIG. 2 is an operation explanatory view showing a state at the time of starting bracket mounting in FIG. 1, and FIG. FIG. 4 is an operation explanatory view showing a state during bracket attachment, FIG. 4 is an operation explanatory view showing a state at the time of bracket attachment completion in FIG.
FIG. 2 is an explanatory view showing a bracket in FIG. 1.

As shown in FIG. 1, the bracket 20 of the bracket mounting structure for the electric junction box of the present embodiment can be directly attached to the electric junction box 10 without a relay member such as an adapter. . That is, the bracket 2 is located at a predetermined position on one side wall surface of the electric connection box 10.
0 is provided with a fitting projection 11.
The fitting protrusion 11 is formed between a pair of rails 12 and 12 provided at a predetermined interval along the vertical direction, and between the rail 12 and a side wall surface of the electric connection box main body.
A recess 13 is provided so as to close the lower end.

At a predetermined position between the pair of rail portions 12 along the longitudinal direction, an engaging portion 14 having a tapered surface on an upper side is provided. When the bracket 20 moves in the mounting direction (downward in FIG. 1) of the electrical junction box 10, the locking arm 14 moves when the flexible arm 25, which will be described later, passes over the locking portion 14. Slide the tip to guide.

As shown in FIGS. 1 and 5, the bracket 20 has a bracket hanging portion 21 which is bent downward at a substantially right angle. The bracket hanging portion 21 is formed with a crank portion 22 which is bent in a step-like manner.
Project outward from the upper portion 21b by a predetermined dimension. An opening 23 having a predetermined interval corresponding to the interval between the concave portions 13 is formed in the center of the bracket hanging portion 21 so as to straddle the crank portion 22.
When the opening 23 is attached to the electric junction box 10, the opening 23 moves in the attaching direction of the bracket 20.
Each of the guide portions 24 formed on the upper portion 21b side of each of the inner edges 23a is formed with a corresponding one of the concave portions so that the pair of rails 12, 12 on the side of the electric connection box 10 are sandwiched between inner edges 23a, 23a along the longitudinal direction. 13 is inserted.

The bracket 20 has an opening 2.
A single flexible arm 25 protrudes (upward in FIG. 1) from substantially the center of the lower end 23 b of the third unit 3 along the bracket hanging part 21. The flexible arm 25 is provided so as to project into the opening 23, and
1 protrudes outward from the surface of the upper portion 21b by a predetermined dimension. Also, on the back side of the flexible arm portion 25,
A tapered surface 25a is formed by bending,
With the movement of the bracket 20 to the electric connection box 10 in the mounting direction (downward in FIG. 1), the tapered surface 25a slidably contacts the locking portion 14 of the electric connection box 10 so that the flexible arm portion 25 is elastically deformed. Over the locking portion 14,
The tip is locked to the lower edge of the locking portion 14.

Further, at the upper end of the inner edge 23a along the longitudinal direction of the opening 23, each rail 1 on the electric connection box 10 side is provided.
A stopper 23c that is in contact with the upper end of the second member 2 is formed. The stopper portion 23c is brought into contact with the upper end of each rail portion 12 as the bracket 20 is pushed into the electric connection box 10 in the mounting direction, thereby defining the mounting completion position of the bracket 20.

The operation of the bracket mounting structure for the electric junction box having the above-described configuration according to the present embodiment will be described with reference to FIGS. First, as shown in FIGS. 2A to 2C, when the bracket 20 is mounted on the electric connection box 10, the mounting direction of the bracket 20 with respect to the electric connection box 10 (FIG.
With the movement of the electric connection box 10 to the middle and the lower side, the rails 12 of the electric connection box 10 are inserted into the openings 23 on the bracket 20 side, and the inner edges 23a on both sides of the opening 23 are connected to the electric connection box 10. Is inserted into each recess 13 on the side.

Next, as shown in FIGS. 3 (a) to 3 (c), when the bracket 20 is moved so as to be pushed into the fitting projection 11 on the side of the electric connection box 10 in the mounting direction. The tapered surface 25a of the flexible arm portion 25 slides on and is guided by the locking portion 14 on the side of the electric connection box 10, and
The flexible arm 25 is elastically deformed outward.

Next, as shown in FIGS. 4A to 4C, when the bracket 20 is further pushed in, the distal end of the flexible arm 25 goes over the locking portion 14 and the lower end of the locking portion 14 Locked to the edge. At this time, the stopper portion 23 of the bracket 20
The work of attaching the bracket 20 to the electric connection box 10 is completed by the contact of c with the upper end of each rail 12 on the electric connection box 10 side. Therefore, the bracket 20 is securely and easily attached to the fitting projection 11 of the electric connection box 10.

That is, the opening 23 on the bracket 20 side
Guides 24 forming the upper part of the electric connection box 10
The electric connection box 10 is inserted into each of the recesses 13 on the side of the electric connection box 10.
In the direction intersecting with the mounting direction of the bracket 20 with respect to the horizontal direction (in FIG. 1, the lateral direction along the side wall surface of the electric connection box 10 and the direction perpendicular to the side wall surface), movement such as displacement is regulated. Further, the distal end of the flexible arm portion 25 on the bracket 20 side is locked by the locking portion 14 on the electric connection box 10 side, so that the movement of the bracket 20 in the removal direction (upward in FIG. 1) is restricted. You. Further, the stopper portion 23c on the bracket 20 abuts on the upper end of each rail portion 12 on the electric connection box 10 side, so that the mounting direction of the bracket 20 (FIG. 1).
Movement to the middle and lower sides is restricted. Therefore, bracket 2
0 is easily and firmly attached to the electric junction box 10.

As described above, according to the bracket mounting structure for the electric junction box of the present embodiment, the opening 23 on the bracket 20 side is electrically connected to the bracket 20 with the movement of the bracket 20 to the electric junction box 10 in the mounting direction. Inner edges 23a, 23a extending in the longitudinal direction of each rail 12 on the connection box 10 side
Each of the guide portions 24, which is an upper portion of the inner edge portion 23a, is inserted into each of the concave portions 13 so as to be sandwiched therebetween. Further, the flexible arm 25 on the bracket 20 side is guided by the tapered surface 25a on the back surface thereof slidingly contacting the locking portion 14 on the electric connection box 10 side, so that the flexible arm portion 25 moves outward. It is elastically deformed, and its tip rides over the locking portion 14 and is locked to the lower edge of the locking portion 14. At this time, bracket 2
The stopper portion 23c on the 0 side contacts the upper end of each rail portion 12 on the electric connection box 10 side.

Therefore, the bracket 20 can be connected to the electric connection box 10 without using a relay member such as an adapter as in the prior art.
Can be directly attached to the device, and the attaching operation can be performed reliably and easily. As a result, the number of parts and the number of assembling steps can be reduced, so that the cost can be reduced and the space can be saved.

When an external force is applied to the bracket 20 attached to the electric junction box 10 in, for example, a further mounting direction (downward in FIG. 1), the flexible arm 25 of the bracket 20 is moved to the electric junction box 10 for example. Does not bend outward (toward the front in FIG. 1) to release the locked state of the distal end of the flexible arm 25 by the locking portion 14. Further, since the distal end of the flexible arm portion 25 by the locking portion 14 of the electric connection box 10 is bent inward to maintain the locked state, the electric connection box 1
A good attachment holding force of the bracket 20 to zero can be secured.

[0023]

As described above, according to the bracket mounting structure to the electric junction box of the present invention, the electric junction box forms a concave portion with the side wall of the electric junction box main body and has a predetermined interval. A pair of rails, a fitting projection provided with a locking portion at a predetermined position between the rails is provided, the bracket is
At the time of attachment to the electrical junction box, a rail portion is inserted between the inner edge portions, an opening having a predetermined horizontal width corresponding to the interval between the rail portions, and an opening extending from a lower end in the longitudinal direction of the opening along the opening. And a flexible arm portion having a predetermined width corresponding to the interval between the rail portions and having a distal end locked by the locking portion, and an inner edge upper end along the longitudinal direction of the opening. A stopper portion that contacts the upper end of the rail portion.

Accordingly, the opening is fitted into each rail of the fitting projection, and a part of each inner edge above the opening is fitted into the recess, and the stopper comes into contact with the upper end of each rail.
At this time, the flexible arm is slidably contacted with the locking portion and elastically deformed. When the flexible arm gets over the locking portion, it is locked to the lower edge of the locking portion. Therefore, a relay member such as an adapter is unnecessary, and the number of parts and the number of assembling steps can be reduced.
The cost can be reduced and the space can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before a bracket is attached to a bracket attaching structure to an electric junction box according to an embodiment of the present invention.

FIGS. 2A and 2B are explanatory diagrams showing a state at the start of bracket attachment in FIG. 1, wherein FIG. 2A is a perspective view, FIG. 2B is a cross-sectional view of FIG. 1A, and FIG. FIG.

FIGS. 3A and 3B are explanatory views showing a state in which the bracket is being mounted in FIG. 1; FIG. 3A is a perspective view, FIG. 3B is a cross-sectional view of FIG. 3A, and FIG. FIG.

4A and 4B are explanatory views showing a state at the time of completion of bracket attachment in FIG. 1; FIG. 4A is a perspective view, FIG. 4B is a cross-sectional view of FIG. 4A, and FIG. FIG.

5A and 5B are explanatory views showing a single bracket in FIG. 1; FIG. 5A is a front view, FIG. 5B is a plan view, and FIG.
FIG.

FIG. 6 is an exploded perspective view showing a conventional bracket mounting structure for an electric junction box.

FIG. 7 is a perspective view of the adapter in FIG. 6 as viewed from the back side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric connection box 11 Fitting protrusion 12 Rail part 13 Concave part 14 Lock part 20 Bracket 21 Bracket hanging part 22 Crank part 23 Opening 23a Inner edge 23c Stopper part 24 Guide part 25 Flexible arm part

Claims (1)

[Claims] 1. A bracket mounting structure for mounting a bracket to an electric junction box, wherein the electric junction box forms a recess with a side wall of an electric junction box main body and has a pair of spaced apart predetermined intervals. A fitting projection including a rail portion and a locking portion is provided at a predetermined position between the rail portion, and the bracket is inserted between the inner edge portions when the bracket is attached to the electric connection box. An opening having a predetermined width corresponding to the distance between the rails; and a predetermined projection corresponding to the distance between the rails, protruding upward from the lower end in the longitudinal direction of the opening along the opening. A flexible arm portion having a lateral width and a leading end locked by the locking portion; and a stopper portion abutting on an upper end of the rail portion at an upper end of an inner edge along a longitudinal direction of the opening. To the electrical junction box Socket mounting structure.