Electrical junction box

Details Electrical junction box Electrical junction box

2003-07-28

2004-11-23

Dinkins, Anthony (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

C174S058000, C174S059000, C439S076200, C220S003200

Reexamination Certificate

active

06822163

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical junction box in which a junction box body is freely housed and drawn out by sliding against a corer.
2. Description of the Related Art
There is the earlier technology shown in
FIG. 1
as the subject type of electrical junction box. As shown in
FIG. 1
, this electrical junction box
1
includes a waterproof cover
2
located, for example, within an engine compartment. The waterproof cover
2
is constituted by a lower cover
2
a
and an upper cover
2
b
. The lower cover
2
a
is fixed to a vehicle body (not shown). The upper cover
2
b
covers the top opening of the lower cover
2
a
and is provided so as to be freely detachable from the lower cover
2
a
. On the mutually opposed inner sides of the lower cover
2
a
, a pair of guide rail grooves
3
is provided, and a pair of guide rails
5
of a junction box body
4
is engaged with the guide rail grooves
3
.
One surface of the junction box body
4
is formed as a maintenance surface
4
a
, on which a fuse, a relay, a connector and the like are mounted. The junction box body
4
slides in a vertical direction S because the pair of guide rail grooves
3
of the lower cover
2
a
guides a pair of rails
5
. Due to this sliding movement, the junction box body
4
is provided so as to be freely inserted to and drawn out from the lower cover
2
a.
As a maintenance inspection operation of the electrical junction box
1
, checking of the fuse condition or replacement of the fuse on the maintenance surface
4
a
can be carried out by drawing out the junction box body
4
from the lower cover
2
a
. In addition, an operation of relay replacement or the like can be carried out by completely drawing out the junction box body
4
and moving the drawn-out junction box body
4
closer to a maintenance inspector. According to the foregoing, there is an advantage in that this sliding electrical junction box
1
can be installed even at a position where a periphery part
6
is located over the upper cover
2
b
and thus a space cannot be reserved for maintenance inspection of the junction box body
4
by merely opening the upper cover
2
b.
SUMMARY OF THE INVENTION
However, in the aforementioned electrical junction box
1
, a space between the top surface of the lower cover
2
a
and the periphery part
6
above the lower cover
2
a
, designated as a dimension L, is a dimension for drawing out the junction box body
4
. When this drawing-out dimension cannot be sufficiently reserved the maintenance inspection operation can be carried out only in a state where the junction box body
4
is merely drawn out from the inside of the lower cover
2
a
by sliding movement. Therefore, there has been a problem of extremely bad workability.
Moreover, when the sufficient dimension for drawing out the electrical junction box body
4
cannot be reserved, if replacement of the junction box body
4
itself is required, the only method for the replacement is to remove the periphery part
6
. However, it is not always possible to remove the periphery part
6
.
The present invention was made in consideration of the above-described problems. It is an object of the present invention to provide an electrical junction box in which a junction box body can be easily removed from a cover even in the case where a sufficient dimension cannot be reserved for drawing out the junction box body.
According to one aspect of the present invention, there is provided an electrical junction box, comprising: an electrical junction box, comprising: a junction box body; and a cover which houses and holds the junction box body, wherein a guide rail groove is provided on any one of an inner surface of the cover and an outer surface of the junction box body, and a guide rail guided by the guide rail groove is provided on the other thereof; and the guide rail groove is formed so that the inlet side thereof is a wide groove part having a width wider than that of the guide rail.


REFERENCES:
patent: 5515988 (1996-05-01), Oda
patent: 5702021 (1997-12-01), Ito
patent: 5915978 (1999-06-01), Hayakawa et al.
patent: 6121548 (2000-09-01), Matsuoka
patent: 6515226 (2003-02-01), Chiriku et al.
patent: 6541700 (2003-04-01), Chiriku et al.
patent: 6561822 (2003-05-01), Depp et al.
patent: 6570088 (2003-05-01), Depp et al.
patent: 6679708 (2004-01-01), Depp et al.

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