JPS5927629Y2 - Control device housing opening/closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing device for a control equipment casing, and particularly to an opening/closing device for a small-sized control equipment casing that houses a small-sized control equipment.

Conventionally, hinges, hinges, and other parts have been used in opening/closing devices for control equipment casings.

FIG. 1 shows an external view of such a conventional opening/closing device for a control equipment case.

In the figure, the chassis 10 includes control equipment parts (not shown).
is attached, and a left side plate 12 and a right side plate 14 are screwed to both end faces thereof.

One end of a hinge 16 is screwed onto the upper and lower surfaces of the left side plate, and a door 18 with control equipment parts (not shown) attached to the front and back surfaces is attached to the other end of the hinge 16 with mounting screws 2.
It is pivoted so that it can be opened and closed freely.

One side of the door 18 is attached to the right side plate 14 by a fixing screw 22.
is fixed.

Next, to explain its function, when the door 18 is opened by removing the fixing screw 22 fixed to the door 18, the end surface 18a of the door 18 is connected to the contact side 12 of the left side plate 12, as shown in FIG.
The opening angle is set at the position where it contacts a.

However, the hinges, hinges 16, etc. used in the opening/closing parts of conventional small control equipment casings are not commercially available, so they have to be specially manufactured.

Also, the side surface 18a of the door 18 and the contact side 12 of the left side plate 12
Since the collision area with a was large, there was a drawback that the paint near the collision area was largely peeled off.

The present invention was developed in view of the conventional problems mentioned above, and its purpose is to provide a hinge function to the control equipment casing itself without using a hinge, and to reduce the contact area between the door and the side plate. To provide an opening/closing device for a control equipment casing, which prevents paint from peeling off and is positioned at a predetermined opening angle.

In order to achieve the above object, the present invention includes a chassis for attaching control equipment parts, two side plates fixed to the chassis, and a door pivoted to the upper and lower protruding pieces of one of the side plates for attaching control equipment parts. One side of the side plate to which the door is pivotally attached has a recessed notch, and the opening angle of the door is determined by both ends of the recessed notch.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 3 shows a preferred embodiment of the opening/closing device for a control equipment casing according to the present invention.

In the drawings, the same members as in the conventional example are given the same reference numerals and their explanations will be omitted.

A projecting piece 24a is provided on the upper and lower surfaces of the left side plate 24 fixed to the chassis 10, and the door 18 is pivoted to the projecting piece 24a by means of a mounting screw 20, as shown in FIG. It is worn.

Further, one side of the left side plate 24 is recessed as shown in FIG. 3, and is shown as a recessed recess 24b.

The contact sides 24C at both ends of the concave top portion 24b are brought into contact with the end surface 18a of the door 18 when the door 18 is opened, thereby positioning the opening angle θ of the door 18.

Next, to explain its operation, the door 18, which is opened by removing the fixing screw 22, opens at the position where the side surface 18a of the door 18 contacts the contact side 24C of the left side plate 24, as shown in FIG. The angle is set.

Figures 6A and 6B show the state in which the door 18 is closed and the state in which the door 1 is closed.
A cross-sectional view of the main part in a state where 8 is open is shown.

If the opening angle θ shown in FIG. 6B is too large, the wiring between the chassis 10 and the door 18 will become long, and the wiring may hit the control device when the door 18 is closed. , l).

By setting the lengths of c and d to appropriate values, they are set to approximately 120'<<.

When the door 18 is opened in this way, the left side plate 2
The portion where the abutting side 24C of the door 18 collides with the side surface 18a of the door 18 is only a portion having a length l shown in FIG.

As described above, according to the present invention, by providing the control device casing itself with a hinge function, the door can be opened and closed smoothly without requiring an opening/closing device such as a hinge or a hinge.

Furthermore, by recessing one side of the side plate that collides with the side of the door when the door is opened, the collision area of the door becomes smaller, making it difficult for the paint to peel off, and at the same time, the opening angle of the door is also positioned.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional opening/closing device for a control equipment case;
FIG. 2 is a bottom view showing the conventional device shown in FIG. 1 in an open state; FIG. 3 is a perspective view of the control equipment housing according to the present invention;
Fig. 4 is a front view of the main parts of the switching device according to the present invention shown in Fig. 3, Fig. 5 is a bottom view showing the opening/closing device according to the invention shown in Fig. 3 in an open state, and Fig. 6A. 6 is an enlarged sectional view of the bottom of the main part showing the closed state of the switchgear according to the present invention;
Figure B is an enlarged bottom sectional view of the essential parts showing the opening/closing device according to the present invention shown in Figure 6A in an open state. Identical members in each figure are given the same reference numerals, and 10 is a chassis;
14 is a right side plate, 18 is a door, 24 is a left side plate, 24a is a protruding piece, 24b is a recessed part, and 24C is a contact side.

Claims (1)

[Scope of utility model registration request] It has a chassis to which the control equipment parts are attached, two side plates fixed to the chassis, and a door which is pivoted to the upper and lower protruding pieces of one of the side plates and to which the control equipment parts are attached, and the side plate to which the door is pivotally attached. An opening/closing device for a control equipment housing, characterized in that one side is recessed and the opening angle of the door is determined by both ends of the recess.