JP2934158B2 - Hinge protection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for protecting a hinge made of resin.

[0002]

2. Description of the Related Art As shown in FIG.
The electric connection box 1 in which a cover 5 for opening and closing the opening 4 is integrally provided via a thin hinge 7 has been widely used. In such a structure, the hinge 7 projects from the box body 3 when the cover 5 is closed, so that the hinge 7 may come into contact with or be hooked with other parts when the electric connection box 1 is transported or mounted. And the hinge 7 may be damaged.

As a structure for avoiding such inconvenience, FIG.
As shown in FIG. 1, there is disclosed an electric junction box 11 in which a cover 5 is provided with a protective projection 9 projecting more than the hinge 7 (see Japanese Utility Model Application Laid-Open No. 62-130054). According to this structure, the contact between the hinge 7 and other components and the like is prevented by the protection projection 9, and the hinge 7 can be prevented from being damaged when the cover 5 is closed.

[0004]

However, in the conventional structure shown in FIG. 6, when a load is applied to the cover 5 from a lateral direction intersecting the opening and closing direction with the cover 5 opened, the cover 5 is opened. 5 is twisted and the hinge 7 is twisted in the direction of the arrow in the figure. When the hinge 7 is twisted in this manner, a shearing force concentrates on the hinge 7, and a crack may be generated from the end of the thin hinge 7, and the hinge 7 may be damaged. For this reason, when the cover 5 is opened and the wiring harness is routed or the electronic components are attached, care must be taken so that no load is applied to the cover 5, and the operation is complicated.

[0005] Further, the other structure shown in Fig. 7 is similar in that the hinge 7 is twisted in the direction of the arrow in the figure when a lateral load is applied to the cover 5. The hinge 7 may be damaged with the cover 5 opened.

[0006] The present invention is, in consideration of the above circumstances, the opening of the cover
It is an object of the present invention to provide a hinge protection structure capable of reliably preventing damage to a hinge even when a load is applied to the cover from a lateral direction regardless of the degree .

[0007]

According to the first aspect of the present invention, a cover is integrally provided on a resin box body via a hinge, and a side wall intersecting the hinge opening / closing axis of the box body. Next, with the cover opened, the hinge of the cover is opened.
A projection is provided in contact with the outer surface of the side wall intersecting the opening / closing axis of the hinge to support the cover from the opening / closing axis direction of the hinge, and the upper end of the projection on the hinge side is closed with the cover closed.
In this state, the cover is provided along the outer surface of the side wall of the cover .

[0008]

[0009]

[0010]

According to the first aspect of the present invention, when the cover is opened, the protrusion provided on the side wall intersecting the opening / closing axis of the hinge of the box body is formed outside the side wall intersecting the opening / closing axis of the hinge of the cover.
Since the cover is supported in the hinge opening and closing direction by contacting along the surface, a load is applied to the open cover from the lateral direction, and even if the cover is torsionally deformed, the protrusion of the box body As a result, the deformation of the cover is suppressed, the hinge can be prevented from being twisted , and
With the cover closed, close the upper end of the
The box is installed along the outer wall surface, so the box
The contact area of the protrusion of the main body can be set wider,
Regardless of the degree of opening of the bar, the cover
Ru can be used to support the over.

[0011]

[0012]

[0013]

BRIEF DESCRIPTION based first embodiment according to claim 1 of the present invention in FIGS.

FIG. 1 is a perspective view showing a structure for protecting a hinge according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which a cover of FIG. 1 is opened. The same reference numerals are given and the description is omitted.

As shown in FIG. 1, the box body 3 of the electric connection box 21 has a connection-side short side wall 3a to which the cover 5 is connected via a hinge 7, and a hinge 7 from both ends of the connection-side short side wall 3a. The cover 5 includes two long side walls 3b bent in a direction substantially perpendicular to the opening / closing axis, and a separation short side wall 3c bent from the long side wall 3b and facing the connection side short side wall 3a. Connection-side short side wall 5 corresponding to connection-side short side wall 3a, long side wall 3b, and separation-side short side wall 3c of box body 3
a, a long side wall 5b, and a separation side short side wall 5c.
A locking projection 13 is protruded from the separation side short side wall 3 c of the box body 3, and is engaged with the locking projection 13 and locked when the cover 5 is closed on the separation side short side wall 5 c of the cover 5. A frame-shaped flexible arm 15 protrudes.

As shown in FIG. 2, the box body 3 has a plate-like projection 23 along the outer surfaces of the two long side walls 5b of the cover 5 with the cover 5 opened. And are provided integrally. The protruding portion 23 is formed on the long side wall 3 of the box body 3.
1b, the upper end 23a of the projection 23 on the hinge side is provided with a cover 5 as shown in FIG.
The cover 5 is provided along the outer surface of the long side wall 5b even when the cover 5 is closed.

According to such a structure, as shown in FIG.
When the cover 5 is opened, the protrusion 23 protruding from the box body 3 is along the outer surface of the long side wall 5b of the cover 5, so that in this state, the cover 5 is placed on the cover 5 from the lateral direction (the opening and closing axis of the hinge 7). Even when a load is applied and the cover 5 tries to twist and deform in the direction of the arrow in the drawing, the long side wall 5b of the cover 5
, And the cover 5 is connected to the hinge 7 by the projection 23.
And the deformation of the cover 5 is suppressed. Thus, the hinge 7 can be prevented from being twisted, so that the shearing force does not concentrate on the hinge 7 and acts on the hinge 7, so that the hinge 7 can be prevented from being damaged.

The projection 23 is provided along the outer surface of the long side wall 5b of the cover 5 even when the cover 5 is closed. The projection 23 comes into contact with the outer surface of the long side wall 5b, the cover 5 can be supported by the projection 23, and damage to the hinge 7 can be prevented.

Next, a second embodiment of the present invention will be described with reference to FIGS.

FIG. 3 is a perspective view showing a hinge protection structure according to a second embodiment of the present invention, FIG. 4 is an enlarged view of a locking portion and an engaging portion, and FIG. 5 is a state in which the cover of FIG. 3 is opened. FIG. 4 is a perspective view showing the same portions as those in the conventional and the first embodiments, and the same reference numerals are given and the description thereof is omitted.

As shown in FIG. 3, in the second embodiment, two long side walls 5b of the cover 5 are used instead of the projections 23 of the first embodiment.
In addition, a thin plate-shaped projection 33 having an engagement portion 35 at the end is provided. On the long side wall 3b of the box body 3, a rod-shaped locking portion 37 with which the engaging portion 35 is detachably engaged is protruded. The protrusion 33 is provided integrally with the cover 5, and the locking portion 37 is provided integrally with the box body 3.

As shown in FIG. 4, the engaging portion 35 is formed in the shape of an arc groove having a notch 35a at the tip, and the inner diameter D1 of the engaging portion 35 is slightly larger than the outer diameter D3 of the locking portion 37. The width D2 of the notch 35a is slightly smaller than the inner diameter D3 of the locking portion 37. Thus, when the cover 5 is opened, the notch 35 a contacts the locking portion 37, and when the cover 5 is further moved to open, the notch 35 a is expanded and the locking portion 37 is engaged with the engaging portion 35. Are combined.

According to such a structure, as shown in FIG.
By engaging the locking portion 37 with the engaging portion 35, the cover 5 is strongly supported in a state where the cover 5 is opened,
Since the torsional deformation of the cover 5 in the direction of the arrow in the drawing is strongly suppressed, the hinge 7 can be more reliably prevented from being twisted. Therefore, it is possible to more reliably prevent the hinge 7 from being damaged by the concentration of the shearing force on the hinge 7.

[0024]

[0025]

As described above, according to the first aspect of the present invention, even if a load is applied to the cover from the lateral direction while the cover is open, the cover is likely to be twisted and deformed . The protrusion of the main body suppresses the deformation of the cover on the hinge side and prevents the hinge from being twisted, so that the hinge can be prevented from being damaged when the cover is opened , and the box is formed on the outer surface of the side wall of the cover. The protrusion of the main body
Because the contact area is set wide,
Regardless, the cover is supported from the hinge opening / closing
Ru it is possible to prevent damage to the Nji.

[0026]

[0027]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a hinge protection structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a cover of FIG. 1 is opened.

FIG. 3 is a perspective view showing a hinge protection structure according to a second embodiment of the present invention.

FIG. 4 is an enlarged view of a locking portion and an engaging portion.

FIG. 5 is a perspective view showing a state where a cover of FIG. 3 is opened.

FIG. 6 is a perspective view showing a conventional example.

FIG. 7 is a perspective view showing another conventional example.

[Explanation of symbols]

 3 Box body 3b Long side wall (side wall) 5 Cover 5b Long side wall (side wall) 7 Hinge 23 Projection 33 Projection 35 Engagement part 37 Engagement part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-130054 (JP, U) Japanese Utility Model Hei 5-46758 (JP, U) Japanese Utility Model Sho 39-17879 (JP, Y1) (58) Field (Int.Cl. ⁶ , DB name) B65D 35/44-35/54 B65D 39/00-55/16

Claims (1)

(57) [Claims] A cover is integrally provided on a box body made of resin via a hinge, and the cover intersects with an opening / closing axis of the hinge of the box body.
The side wall or in a state of opening the cover, the cover
A projection for supporting the cover from the opening / closing axis direction of the hinge is provided so as to contact along an outer surface of a side wall intersecting with the opening / closing axis of the hinge. Mosquito
With the bar closed, follow the outer surface of the side wall of the cover
A hinge protection structure provided in a hinge.