JP3348685B2 - Mounting structure of electrical junction box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for an electric connection box mounted on a motor vehicle, and more particularly, to a method for securely fixing an electric connection box to be covered with a stay on a vehicle body.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, when an electric connection box 1 mounted on a vehicle is mounted on a stay 2 on a vehicle body side, a stay mounting lock portion 3 is projected from an outer surface of the electric connection box 1; The flexible piece 3a provided in the stay attaching lock portion 3 is bent and inserted into the locking hole 2a of the stay 2, and after the insertion, the flexible piece 3a is returned to its original state and protrudes from the upper surface of the flexible piece 3a. The locking claw 3b is locked to the upper edge of the locking hole 2a, and the electric connection box 1 is attached to the stay 2.

When a separate cover 3 is attached to the electric junction box 1, the cover 3 is locked to the electric junction box 1 in advance. That is, while the lock frame 3b is projected downward from the peripheral wall 3a of the cover 3, the lock claw 4 is projected from the outer surface of the electric connection box 1 and the lock frame 3b is locked to the lock claw 4 so that the cover 3 is locked. Are locked to the electric junction box 1.

[0004]

The electric connection box 1 is connected to the stay 2 by a flexible piece 3a of a stay attaching lock portion 3.
Is bent and passed through the locking hole 2a of the stay 2, and then
Since it is a movable lock structure in which the lock claw 3b is returned and locked to the upper edge of the lock hole 2a, there is an advantage that the lock portion 3 for the stay is easily inserted into the lock hole 2a and locked. There is a problem that the stay lock portion 3 is easily detached from the locking hole 2a.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to make it easy to attach an electric connection box to a stay and at the same time to make it difficult to remove the electric connection box, and to securely attach the electric connection box to a stay.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a stay mounting lock portion is provided on an outer surface of an electric connection box, and a lock is provided on a flexible piece provided on the stay mounting lock portion. Claws are protruded, and the stay mounting lock portion is inserted by bending the flexible piece into the lock hole of the stay, and the lock claw is locked to the periphery of the lock hole, and the stay is locked with the stay in the locked state. A lock portion for the cover projecting into the gap between the electric connection boxes is formed at the free end of the flexible piece, while a lock frame having a lock hole formed below the peripheral wall of the cover over the electric connection box projects downward. The lock frame is inserted into the gap between the electrical connection box and the stay, and the lock hole for the cover at the distal end of the flexible piece of the stay mounting lock portion locked to the stay is inserted and locked into the lock hole. , The lock part for the stay mounting is also used as the lock part for the cover. Provides a mounting structure for an electric junction box are.

A plurality of lock holes, such as two lock holes, are provided in parallel on a lock frame provided on the cover, and a cover lock portion is protruded in parallel at the distal end of the flexible piece of the stay mounting lock portion. A plurality of lock coupling portions may be provided.

[0008] As described above, when the electric junction box is mounted on the stay, a movable lock similar to that of the related art is used, and the flexible piece of the stay mounting lock portion is bent and inserted into the lock hole of the stay. After the insertion, the flexible piece is returned to its original state, and the lock claw on the upper surface of the flexible piece is locked to the periphery of the locking hole. After attaching the electric junction box to the stay, cover the electric junction box with a cover, insert the lock frame of the cover between the outer surface of the electric junction box and the stay, and project from the stay at the tip of the lock frame. The cover lock portion of the stay mounting lock portion is bent and inserted and locked in the lock hole of the lock frame.

As described above, since the electric connection box is attached to the stay as a movable lock as in the prior art, the electric connection box can be easily attached to the stay via the stay attaching lock portion. In addition, since the stay mounting lock portion locks the cover over the electrical connection box, the stay mounting lock portion hardly bends,
The lock with the stay can be prevented from being released, and the electric connection box can be firmly attached to the stay.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the stay fixing side wall of the electric connection box 10 has an upper portion 10a projecting stepwise from a lower portion 10b, and a stay fixing lock portion 11 is fixed from the recessed lower portion 10b. It protrudes horizontally to the side.
As shown in FIG. 2, the stay mounting lock portion 11 has left and right support portions 11a protruding from the outer surface of the electric connection box 10, and the ends of the left and right support portions are connected by a connection portion 11b.
b, the flexible piece 11c is projected between the left and right support portions 11a, and a pair of left and right lock claws 11 is provided on the upper surface of the flexible piece 11c.
d is provided.

A cover lock portion 11f protrudes from the center of the free end of the flexible piece 11c facing the outer surface of the electrical connection box of the flexible piece 11c. Lock portion 11f for the cover
Is set so as to protrude between the stay 5 and the lower portion 10b of the electric connection box 10 when the electric connection box 10 is attached to the stay 5.

As shown in FIG. 2, a separate cover 12 is provided over the electric connection box 10, and a peripheral wall 12a of the cover 12 is brought into contact with an upper surface 10c of the electric connection box 10, and a stay is provided. The lock frame 13 protrudes downward from the peripheral wall 12a on the fixed side.

The lock frame 13 has a shape in which a vertical lock hole 14 is formed in the center of the lower part. The lock hole 14 is formed by a cover lock portion 11f at the distal end of the flexible piece of the stay attachment lock piece 11. The dimensions are set to insert and lock. The length of the lock frame 13 is such that the lower end 13a of the lock frame is positioned below the flexible piece 11c of the stay mounting lock piece 11 with the peripheral wall 12a abutting against the upper surface 10c of the electric connection box 10. .

As shown in FIG. 3A, the electric connection box 10 is attached to the stay 5 of the automobile in the same manner as before, before the separate cover 12 is attached. That is, the stay attaching lock portion 11 is inserted into the engagement hole 5a of the stay 5,
The flexible piece 11c is bent so that the lock claw 11d passes through the locking hole 5a. After the passage, the movable piece 11c returns to its original state, the lock claw 11d is locked to the upper edge of the locking hole 5a, and the electric connection box 10 is attached to the stay 5. In this state,
The cover lock portion 11f at the free end on the free end side of 1c protrudes into the gap C between the stay 5 and the outer surface of the electric connection box 10.

After attaching the electric connection box 10 to the stay 5, as shown in FIG. 3B, a cover 12 is put on the upper part of the electric connection box 10, and the lock frame 13 is attached to the stay 5 and the electric connection box 10. Insert into gap C. Lower end 1 of lock frame 13
3A comes into contact with the cover lock portion 11f protruding into the gap C, passes while bending the cover lock portion 11f, and when the lock hole 14 coincides with the cover lock portion 11f, as shown in FIG. As shown in FIG.
Is restored to its original state and is inserted and locked in the lock hole 14.

As described above, the stay attaching lock portion 11 protruding from the electric connection box 10 has the lock claw 11d having the stay 5d.
At the same time, the cover lock portion 11f locks to the cover 12, so that both the stay 5 and the cover 12 are locked.

In other words, the stay mounting lock portion 11
Since the lock claw 11d is locked to the stay 5, the upward tilt of the flexible piece 11c is restricted, and the cover lock portion 11f at the tip of the flexible piece 11c locks the cover 12. Because it is locked to the frame 13, the downward inclination is restricted. Therefore, the flexible piece 11c bends in both the up and down directions and cannot be tilted. As a result, the stay mounting lock portion 11 of the electric connection box 10 can be firmly locked and connected to the stay 5 without possibility of falling off, and the cover 12 Can be securely locked so as not to come off easily.

In the above embodiment, only one locking hole 14 is provided in the lock frame 13 of the cover 12. However, as shown in FIG. On the other hand, two cover lock portions 11f and 11g are provided in parallel on the free end side of the flexible piece 11c of the stay mounting lock portion 11 protruding from the electric connection box 10, and the cover is provided at two places on the left and right. 12 may be lock-coupled to the electrical junction box 10.

[0020]

As is apparent from the above description, according to the present invention, since the electric connection box is locked to the stay on the vehicle side by the movable lock portion, it is easy to attach to the stay and to the stay. After attaching the cover, a separate cover is put on the electrical connection box, and this cover is locked by the stay mounting lock part, and the lock of the stay and the cover is also used, so the lock can be hardly released from the stay, The connection box can be securely fixed to the stay. At the same time, the cover can be hardly unlocked, and the cover can be securely fixed to the electric connection box.

[Brief description of the drawings]

FIG. 1A is a schematic side view of a main part of an electric connection box according to an embodiment of the present invention, and FIG. 1B is an enlarged plan view of a stay mounting lock portion.

FIG. 2A is a schematic side view of a main part of the cover of the embodiment, and FIG. 2B is an enlarged front view of the main part.

FIGS. 3A, 3B, and 3C are side views of main parts showing an attaching process.

FIGS. 4A and 4B are enlarged views of a main part showing a modification.

FIG. 5 is a drawing showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 5 Stay 5a Locking hole 10 Electrical connection box 11 Lock part for stay attachment 11c Flexible piece 11d Lock claw 11f Lock part for cover 12 Cover 13 Lock frame 13 Lock hole

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-202444 (JP, A) JP-A-8-251761 (JP, A) JP-A-9-8469 (JP, A) JP-A-9-469 103018 (JP, A) JP-A-10-322848 (JP, A) JP-A-11-32411 (JP, A) JP-A-11-113136 (JP, A) Japanese Utility Model Application No. Sho 61-22124 (JP, U) Japanese Utility Model Application 63-113422 (JP, U) Japanese Utility Model Application Hei 5-91123 (JP, U) Japanese Utility Model Application Hei 6-84728 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 3/08 H02G 3/16 B60R 16/02

Claims (1)

(57) [Claims] 1. A stay mounting lock portion is projected from an outer surface of an electric connection box, a lock claw is projected from a radius piece provided on the stay mounting lock portion, and the stay mounting lock portion is attached to the stay. The flexible piece is inserted into the locking hole by bending it, and the locking claw is locked to the periphery of the locking hole, and the cover locking portion projecting into the gap between the stay and the electrical connection box in the locked state. While forming at the free end of the flexible piece, a lock frame having a lock hole formed below the peripheral wall of the cover covering the electric connection box is projected downward, and the lock frame is provided in a gap between the electric connection box and the stay. A configuration in which the lock portion for the cover at the distal end of the lockable portion for the stay attachment locked to the stay is inserted and locked into the lock hole, and the lock portion for the stay attachment is also used as the lock portion for the cover. The mounting structure of the electrical junction box.