JPS635368Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a method of locking the door and lower box of a distribution box with a single-swing door.By lightly pressing the door, the door is locked to the lower box, and the door is locked to the lower box. The purpose of the present invention is to provide a locking device for the lower box and the door, in which the door and the lower box are unlocked by pressing the handle when opening the box.

An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 shows a lower box having an opening edge 2 bent inward, 3 a door hinged to the lower box, and 4 a handle. It is.

FIG. 2 is an exploded view of the door and handle, and the door 3 is provided with a guide 5, a tongue-shaped end 7 with a square hole 6 at its tip, and a spring support 13 as shown in the figure. The handle 4 has an engaging claw 8 on the bottom surface that engages with the opening edge 2 of the lower box 1, sliding grooves 9 on both ends, and a recess in the center of the bottom surface for mounting the spring plate 10. 16, and a protrusion 12 on the back for attaching the spring 11.
has been established.

The spring plate 10 has a contact portion 21 that contacts the opening edge 2 of the lower box 1 by bending, and a retaining portion 14 that corresponds to the square hole 6 of the tongue-shaped end 7 of the door. It is screwed into the recess 22 at the center of the bottom of 4 from the bottom side.

The spring 11 is installed between the protrusion 12 of the handle 4 and the spring support 13 of the door 3, and always urges the handle 4 outward with respect to the door 3.

The door 3 with the handle 4 attached as described above is attached to the lower box 1.
The door 3 is hinged as shown in FIG.
Because it is pushed up by the spring plate 10, the retaining part 14 of the spring plate 10 is not caught in the square hole 6 of the tongue-shaped end 7 of the door 3, and the handle 4 is always urged outward by the spring 11. , the engaging claw 8 is engaged with the opening edge 2 of the lower box 1 from the back side and prevents the door 3 from opening.

When opening the door 3, move the handle 4 to the right in FIG. In other words, when the door 3 is opened by pushing the door inward, the contact part 21 of the spring plate 10 and the opening edge 2 of the lower box 1 are separated, and the contact part 2
1 protrudes from the bottom surface of the handle 4. Therefore, when the handle 4 is pushed inward to open the door 3, the retaining part 14, which is integrally formed with the contact part 21 as shown in FIG. come to the position,
The handle 4 is latched into the square hole 6 and locked in that position, and the handle 4 is held until the door 3 is closed to the lower box 1 and the contact portion 21 of the spring plate 10 is pushed up by the opening edge 2 of the lower box 1. It doesn't move.

When the door 3 is closed and the contact portion 21 of the spring plate 10 is pushed up by the opening edge 2 of the lower box 1, the retaining portion 14 and the square hole 6 of the tongue-shaped end 7 of the door 3 are unlatched, and The handle 4 is moved by the biasing force of the spring 11 to the outside of the door 3, that is, to the position shown in FIG.

In the locking device configured as described above, the handle 16 is fixed to the door 20 as in the conventional case shown in FIG.
Compared to a method in which the claw 17 provided on the back side of the door 6 is force-fitted into the claw holder 19 installed on the lower box 18, the position of the claw 17 and the claw holder 19 is misaligned, and the door 20 collides with the lower box 18. Inconveniences such as damage to the claw 16 can be avoided.

Furthermore, when the engaging claw 8 engages with the opening edge 2 of the lower box 1, the engagement surface is perpendicular to the opening direction of the door, so the door does not open easily when the door is closed. The locking of the door and the lower box is reliable, and when the door is to be opened, it is only necessary to push the handle inward, which has the effect of greatly improving operability.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of the distribution box according to the embodiment of the present invention, Figure 2 is an exploded view of the door and handle, and Figure 3 is the locking device when the door and lower box are closed. 4 is a sectional view of the locking device when the door is open, and FIG. 5 is an external perspective view of a conventional electricity distribution box. 1... Lower box, 2... Opening edge, 3... Door, 4...
Handle, 5... Guide, 6... Square hole, 7... Tongue-shaped end, 8... Engaging claw, 9... Sliding groove, 10... Spring plate, 11... Spring, 12... Projection, 13 ... Spring retainer, 14 ... Retaining part, 15 ... Screw, 16 ... Handle, 17 ... Claw, 18 ... Lower box, 19 ... Claw support,
20...Door, 21...Contact portion, 22...Recess.

Claims (1)

[Scope of utility model registration request] In a distribution box with a single-swing door, the door has a tongue-shaped end with a square hole at the handle attachment point, a spring support and a guide, and a handle with a sliding groove on the side and an engaging pawl and a recess on the bottom. a spring plate screwed into the recess of the handle, the spring plate having a contact portion corresponding to the opening edge of the lower box and a retaining portion latched to the square hole in the tongue-shaped end of the door; A locking device for a door of an electricity distribution box, which is comprised of a spring installed between a support and a handle to always bias the handle outward from the door.