JPH07114526B2 - Mounting structure of electric connection box to vehicle body etc. - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mounting structure with improved assemblability and maintainability when assembling and fixing an electrical junction box used for wiring of an automobile to a vehicle body or the like.

[Conventional technology]

Generally, many electrical fuses and relays are installed in the electric junction box, and it is necessary to inspect or replace the fuses for any blowout or contact failure.

FIG. 5 shows a conventional mounting structure. An electric junction box a is usually installed inside an instrument panel cover (instrument panel cover) b with both ends fixed, and a small window or a small window is attached to the instrument panel cover b. A notch (not shown) is provided to maintain the fuse c and the like.

However, the instrument panel cover b often does not have a space for providing a small window or a notch. In this case, a rotary shaft d is provided at one end of the electric connection box a as shown in the figure, and the bracket is rotatably mounted on the bracket e. The electric junction box a is rotated to a position where maintenance is possible at c. However, the other end of the electrical junction box a has a structure in which a hook g that abuts a ceiling wall (stopper) f of an instrument panel is fixed by a clip h. Therefore, when the clip h is removed, the electric junction box a hangs down by its own weight, and therefore, it is necessary to put both hands in a narrow space of the instrument panel cover b to support this, which makes the work difficult and maintenance is poor. It was a thing.

Similarly, hooks g and clips h for fixing the electric junction box a
Since it is in the narrow instrument panel cover b, the workability at the time of mounting and releasing the electric junction box a was not good.

[Problems to be Solved by the Invention]

The present invention has been made in view of the above problems, and provides an attachment structure that is easy to assemble and release when fixing an electric junction box to a vehicle body or a panel and has good maintainability. It is an issue.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the present invention, as described in claim (1), an electric connection is provided on a vehicle body or a panel of an automobile, and an attachment portion is fixed to both end portions of the electric junction box. In the box mounting structure, one end of the electrical connection box is rotatably mounted on one of the mounting parts, a fixing pin is provided on the other end of the electrical connection box, and the fixing pin is supported on the other side of the mounting part. One end of the operation lever is rotatably attached, and a lock means is provided between the other end of the operation lever and the attachment portion, and the operation lever is provided with a stopper for the fixed pin, and the operation lever hangs down by its own weight when the operation lever is unlocked. A configuration is adopted in which the box can be held in a predetermined posture by the engagement of the fixing pin and the stopper.

As for the above-mentioned subject, as described in claim (2), in a mounting structure of an electric connection box, wherein a mounting portion is provided on a vehicle body or a panel of an automobile, and both ends of the electric connection box are fixed to this mounting portion. One end of the electric junction box is rotatably mounted on one side of the electric junction box, an engaging element and a hook-shaped stopper are provided on the other end of the electric junction box, and the other end of the mounting part is attached to the other end side of the electric junction box. The lock lever is configured to be biased, and the lock lever is provided with an engagement hole that engages with the engagement element to hold the connection box in a substantially horizontal state, and is provided with a locking portion for the hook-shaped stopper. The present invention can also be achieved by a configuration in which an electric connection box that hangs by its own weight when the engagement element and the engagement hole are disengaged can be held in a predetermined posture by a stopper that engages with the locking portion.

[Work]

According to the first invention, one of the free ends of the electric connection box hangs downward due to its own weight when the operation lever is released, but it is stopped in a predetermined inclined posture due to the engagement of the fixing pin and the stopper. Retained.

Similarly, according to the second aspect of the invention, the lock of the electric connection box is released by pulling the lock lever toward the front side, and the locking portion of the lock lever and the hook-shaped stopper of the electric connection box are engaged with each other so that a predetermined value is obtained. Held in a tilted position.

Therefore, during maintenance such as inspection and replacement of fuses and relays, the electric connection box can be easily moved to the maintenance position by operating the operation lever or the lock lever with one hand.

Further, assembling of the electrical junction box, as will be described later, a rotary shaft is projectingly provided at one end thereof and fitted into a bearing groove provided in a bracket, and the other end of the electrical junction box is constructed as described above. This can be easily done by locking with the operation lever or the lock lever. Therefore, assembling and fixing of the electric junction box and maintenance work can be easily performed in a narrow space such as the instrument panel cover.

〔Example〕

In FIG. 1, A is an electric junction box and B is a mounting portion thereof, and the mounting portion B is mounted inside an instrument panel (not shown).

The case 1 made of synthetic resin of the electrical junction box A has a plurality of relays 2 mounted on its upper wall 1a and a fuse insertion portion 3 formed on the upper wall 1a, and one end wall (the right end side in the drawing). ) 1b
A large number of fuses 4 are attached to the. This case 1
On both side walls 1c, 1c ', a rotary shaft 5 is projected near the left end thereof, and a fixing pin 6 is projected on the front side wall 1c near the right end.

Although a circuit board such as a bus bar wiring board including a bus bar and an insulating substrate and a printed wiring board is housed inside the case 1, the illustration thereof is omitted.

The mounting portion B is composed of a pair of brackets 7 and 7'for rotatably supporting the electric junction box A and a cover member 8 connected thereto, and is made of a hard synthetic resin, preferably sheet metal.

The bracket 7, 7'is provided with a bearing groove 9 for the rotary shaft 5, and the groove 9 is preferably provided with a rotary shaft support portion 9b which is continuous with a horizontal guide portion 9a and is inclined downward.

The cover member 8 includes an upper wall 8a, side walls 8b on both sides, and an end wall 8c on the right end side. The width of the upper wall 8a is made slightly larger than the width of the case 1 so that the relay 2 and the connector insertion portion 3 on the upper wall of the case can be housed in the cover member 8.

In the figure, a side wall 8b on the front side is provided with a cutout portion 8d in the middle so that the fixing pin 6 projects to the outside. An operation lever 10 for supporting the fixing pin 6 is provided on the right end side of the side wall 8b.
Has one end rotatably attached by a pin shaft 11. On the other end (free end) of the operating lever 10, an operating piece 12 having a locking claw 12a is provided so as to project downward, and a plurality of locking holes are provided correspondingly.
The locking plate 13 provided with 13a in multiple stages is integrally provided in the notch 8d,
The operating piece 12 and the locking plate 13 constitute a locking means for the operating lever 10 and the cover member 8.

It rotates about the operation lever 10 and the pin shaft 11 as shown by the arrow P, and hangs down by its own weight. A stopper 14 is preferably provided on the side wall 8b in order to prevent this sagging and to hold the operation lever 10 in a predetermined inclined posture with respect to the cover member 8.

In addition, the operation lever 10 has a fixing pin 6 near its free end.
A stopper 15 is provided for the. The stopper 15 is preferably provided with a hook-shaped bent portion 15a at the tip thereof so that the fixing pin 6 does not come off.

Assembling of the electrical junction box A to the mounting part B is done on both side walls 1c, 1
The rotating shafts 5, 5 of c'are attached to the bearing grooves 9 of the brackets 7, 7 '
And the electrical connection box A is held substantially parallel to the cover member 8 and the operating lever 10 is rotated upward so that the locking claw 12a of the operating piece 12 is inserted into the locking hole 13a of the locking plate 13. This is achieved by engaging and locking.

In the electric junction box A, the insertion end side of the fuse 4 tends to hang down due to its own weight, but the fixing pin 6 is supported by the locked operation lever 10 and the upper wall 1a of the case 1 is the end wall of the cover member 8. Since the end wall 8c functions as a stopper of the electric junction box A when it abuts against 8c, the electric junction box A is held and fixed in a stable state even when the vehicle is running or against vibration.

In FIG. 2, the electric connection box A indicated by a chain double-dashed line is
The locked state is shown. In the figure, 16 indicates an instrument panel cover, and the bracket 7 (7 ') of the mounting portion B.
Is fixed to the bulkhead (dashboard) between the engine compartment and the instrument panel by bolting or the like.

When inspecting or replacing the fuse 4, the relay 2, etc., one hand is inserted from the lower opening 17 of the instrument panel cover 16, the locks (12a, 13a) of the operation lever 10 are released, and the lever is slowly rotated toward the front side. As a result, in the electric connection box A that is going to hang down by its own weight, the fixing pin 6 has its operating lever 10
It moves while sliding on the top, tilts downward with the opening of the operating lever 10 as indicated by arrow E, and stops when the fixing pin 6 contacts the stopper 15, and reaches the maintenance position.

When necessary inspections and replacements are completed, the electric junction box A may be lifted or the operation lever 10 may be rotated upward and locked as described above.

If the locking plate 13 of the cover member 8 is provided with a plurality of locking holes 13a in upper and lower stages, by selecting the locking position of the operation lever 10, the electric connection box A is moved to the case upper wall 1a and the end wall ( It can be locked and locked so that it does not rattle when it is almost in contact with the stopper 8c. Therefore, even if there is a slight dimensional difference in the thickness of the case 1, this can be absorbed.

Also, a hook-shaped bent portion is formed on the stopper 15 of the operation lever 10.
If 15a is formed, the fixing pin 6 will not come off even if the hand is immediately released after the lever 10 is unlocked, and the electric junction box A can be held in a predetermined inclined posture. At that time, in the electric junction box A, the side wall 8b of the cover member 8 and the operation lever 10 together form a triangular restraint link,
The posture is stable and maintenance can be performed easily.

In this way, maintenance work such as assembling and fixing the electric connection box A to the mounting portion B, releasing the lock, and replacing the fuse becomes easy.

The embodiment shown in FIGS. 3 and 4 is an example in which mounting portions for fixing both ends of the electric junction box are provided separately.

In the figure, a rotary shaft 5 is projectingly provided near one end of the case 1 of the electric junction box A'as in the above, and an engaging member 18 is provided at the lower corner of the end wall 1b in which the fuse 4 at the other end is inserted. A hook-shaped stopper 19 is provided upright on the upper corner of the protrusion.

On the other hand, the mounting portion B'is constituted by a pair of brackets 7 and 7'having a bearing groove 9 and a lock lever 20 separated from each other.

The lock lever 20 is formed by punching and bending a metal plate having a texture, and a step-like locking portion 20c is provided between the upper half portion 20b and the lower half portion 20d. An accommodation space V for the stopper 19 is formed between the half portion 20b and the mounting plate portion 20a formed by bending, and an engagement hole 21 for engaging the engagement element 18 is provided above the lower half portion 20d. Become.

The brackets 7 and 7'of the mounting portion B'are fixed to the dashboard in the instrument panel as described above, and the lock lever 20 is fixed by bolting the mounting plate portion 20a to the ceiling wall (not shown) of the instrument panel. It is attached.

In FIG. 4, reference numeral C ₁ indicates a lock fixing position of the electric junction box A ′, C ₂ indicates a maintenance position, and C ₃ indicates a removal position.

At the lock fixing position C ₁ , one end of the electric junction box A ′ is
The rotary shaft 5 is fitted in the bearing groove 9 of the bracket 7 (7 '), and the other end of the rotary shaft 5 is engaged with the engaging hole 21 of the lock lever 20 biased toward the bracket 7 side. It is held in a state of being sandwiched between 7 and the lock lever 20.

At the time of maintenance, if the lower half portion 20d of the lock lever 20 is pulled forward with a fingertip as indicated by the arrow R, the engaging element 18 and the engaging hole 21
The electric connection box A'rotates downward by its own weight. At this time, the tip of the stopper 19 is the lock lever.
Since it is caught in the locking part 20C of 20, stop at that position,
The electrical junction box A'is held in the maintenance position C ₂ .

When the lock lever 20 is further pulled toward you at this position C ₂ , the engagement between the stopper 19 and the locking portion 20c is released, the fuse insertion end side of the electrical junction box A'is released, and the removal position C ₃
become.

In this position C ₃ electrical connection box A can be detached 'while supporting with one hand, the rotary shaft 5 electrical junction box A by withdrawing from the bearing groove 9' from the mounting portion B '.

The electric connection box A'can be easily attached by the reverse operation to the above.

The above is an example in which the rotary shaft 5 is provided at one end of the electric junction box A (A ') and fitted into the bearing groove 9 of the bracket 7 (7'). However, the bracket 7 is provided on the electric junction box side, A rotating shaft may be provided on the vehicle body or the panel side. The point is that one end of the electrical junction box may be rotatably attached to one of the mounting portions.

〔The invention's effect〕

As described above, according to the present invention, it is possible to easily attach and detach the electric connection box to and from a narrow mounting portion such as a vehicle body or a panel, and to perform a predetermined operation of the electric connection box by operating the operation lever or the lock lever during maintenance. Because it can be held in a tilted position, it is easy to inspect and replace fuses and relays, and maintainability is greatly improved.

Further, in the invention of the first aspect, the electric connection box can be immediately and easily shifted to the locked state by rotating the operation lever from the unlocked state of the operation lever.

[Brief description of drawings]

1 is an exploded perspective view of a mounting structure according to the present invention, FIG. 2 is a partially cutaway side view showing the assembled state and working state of the same, FIG. 3 is an exploded perspective view of another mounting structure according to the present invention, FIG. 4 is a partially cutaway side view showing the assembled state and the operating state of the above, and FIG. 5 is an explanatory view of a conventional mounting structure. A, A '... electrical junction box, B, B' ... mounting part, 1 ... case, 2 ... relay, 4 ... fuse, 5 ... rotary shaft, 6
...... Fixing pin, 7,7 '…… Bracket, 8 …… Cover member, 9 …… Bearing groove, 10 …… Operating lever, 12 …… Operating piece,
12a …… Locking claw, 13 …… Locking plate, 13a …… Locking hole, 14 ……
Stopper, 15 ... Stopper, 18 ... Engagement element, 19 ... Hook-shaped stopper, 20 ... Lock lever, 20c ... Locking part, 21 ... Engagement hole.

Claims (2)

[Claims] 1. A mounting structure for an electric connection box, wherein a mounting portion is provided on a vehicle body or a panel of an automobile, and both ends of the electric connection box are fixed to the mounting portion. One end of the electric connection box is rotated to one of the mounting portions. It is movably mounted and a fixing pin is provided at the other end of the electric junction box, and one end of an operation lever that supports the fixing pin is rotatably attached to the other end of the attachment part and the other end of the operation lever and the attachment part Locking means is provided between them to rotate the electric connection box to the lock position while sliding the fixing pin on the operating lever when the operating lever is rotated, and the operating lever is provided with a stopper for the fixing pin. A structure for mounting an electric connection box to a vehicle body or the like, wherein the electric connection box that hangs down by its own weight when the lock is released can be held in a predetermined posture by engagement of the fixing pin and the stopper. 2. A mounting structure of an electric connection box in which a mounting portion is provided on a vehicle body or a panel of an automobile, and both ends of the electric connection box are fixed to the mounting portion, and one end of the electric connection box is rotated to one of the mounting portions. It is movably mounted, has an engaging element and a hook-shaped stopper at the other end of the electric connection box, and the other side of the mounting part is a lock lever biased to the other end side of the electric connection box. Is provided with an engaging hole that engages with the engaging element to hold the electric junction box in a substantially horizontal state,
An engaging portion is provided for the hook-shaped stopper so that the electric connection box that hangs by its own weight when the engaging element and the engaging hole are disengaged can be held in a predetermined posture by the stopper engaging with the engaging portion. A structure for mounting an electrical junction box to a vehicle body, etc.