JP2505290Y2 - Switchgear for small enclosures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an opening / closing device for a small housing provided in various office automation equipment and office equipment.

[Prior Art] Office automation equipment such as a stock price information display device or various office equipment is installed in a conspicuous, extremely limited space such as a counter at a store or an office or on a desk. Therefore, it is required to be as compact and excellent in design as possible.

The casing of such equipment is provided with an opening that can be opened and closed by an opening / closing device for maintenance. Furthermore, this opening is often provided at a position such as the front surface or the side surface of the device that influences the appearance of the device.

For this reason, the opening / closing device has a structure in which the pivotal support portion of the door body is not exposed to the outside so as not to impair the design of the device.

 A conventional opening / closing device will be described with reference to FIG.

In the figure, reference numeral 1 denotes a front panel of the housing, and the front panel 1 is provided with an opening 2. Hinge metal fittings 3 are fixed to the lower portions of both sides of the opening 2, and door hinge support holes 4 are formed in the hinge metal fittings 3.

A holding hole 6 having a required depth is formed at the lower end of the door body 5 that opens and closes the opening 2. A compression spring 7 is provided in the holding hole 6.
The pivot pin 8 is slidably inserted with the interposition of. Thus, when the door 5 is attached to the opening 2, the pivot pin 8 and the door pivot hole 4 are aligned with the pivot pin 8 pushed in, The pivot pin 8 is fitted in the door pivot hole 4 by the restoring force of the compression spring 7.

The door body 5 can be opened and closed centering around the pivot pin 8.

Next, FIG. 4 shows another conventional switchgear.

In this conventional opening / closing device, pivot pins 8 are fixed to both sides of the lower end of the door body 5.

On the other hand, the door fitting pivot hole 4 is bored in the bearing fitting 9 that supports the pivot pin 8, and a bracket (not shown) is used to
It is attached to the front panel 1 by screws 10.

When the door body 5 is mounted, the pivot pin 8 is fitted into the door pivot hole 4, and the bearing fitting 9 is fixed to the bracket in this state.

[Problems to be Solved by the Invention] However, all of the above-described conventional switchgear have a problem that the number of parts is large, the cost is high, the assembling and disassembling work is complicated, and the maintainability is poor.

In view of the above situation, the present invention aims to provide an opening / closing device for a small housing having a small number of parts and excellent maintenance workability.

[Means for Solving the Problems] According to the present invention, a pivot pin is fixed to a door body, and a holding plate made of an elastic material is provided on a vertical frame portion of a panel opening to which the door body is attached. A notch is provided to form a pivot pin retainer, a pivot pin holding groove is provided on the holding plate so as to face the tip of the pivot pin retainer, and the pivot pin can be inserted into and removed from the pivot pin retaining groove. It is characterized by having done.

[Operation] To attach the door, push the pivot pin into the notch,
The pivot pin is fitted into the holding groove and completed.

In this state, the pivot pin retainer prevents the pivot pin from falling out of the holding groove, and the door body opens and closes around the pivot pin.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

It should be noted that, in FIGS. 1 and 2, those equivalent to those shown in FIGS. 3 and 4 are designated by the same reference numerals.

The pivot pins 8 are fixed to both sides of the lower end of the door body 5 with a slight offset to the inside of the housing.

Around the opening 2 provided on the front panel 1, left and right vertical frame portions 11 and upper and lower horizontal frame portions 12 are formed by folding back toward the inside of the housing. Slit-shaped engagement holes 13 are formed at both ends of the.

The door body holding plate 14 has protrusions 18 on the upper and lower sides, and by fitting the protrusions 18 into the engagement holes 13, the door body holding plate 14 is attached along the left and right vertical frame portions 11.

A substantially L-shaped notch 15 having an opening end is formed on the door body holding plate 14 on the lower front surface side of the door body holding plate 14, and the notch is formed.
A pivot pin retainer (16) hanging down along the front edge of the door retaining plate (14) is formed by (15). The lower end of the pivot pin retainer 16
It faces the horizontal portion of the cut 15 and forms an open end having a width narrower than the diameter of the pivot pin 8. A holding groove 17 into which the pivot pin 8 is fitted is formed in the horizontal portion of the cut 15.

The door holding plate 14 is made of a highly elastic material such as a synthetic resin so that the pivot pin retainer 16 can be appropriately elastically deformed when the pivot pin 8 is inserted and removed.

The attachment and detachment of the door body 5 will be described with reference to FIGS.

 The door body 5 is attached to the panel 1 from the front side.

The pivot pin 8 is pushed in from the open end of the cut 15.
As described above, the opening end is narrower than the diameter of the pivot pin 8, and by pushing the pivot pin 8, the pivot pin retainer is pressed.
16 is bent, and the pivot pin 8 is fitted in the holding groove 17.

When the pivot pin 8 is fitted in the holding groove 17, the pivot pin retainer 16 is restored. When the pivot pin retainer 16 is in the restored state, the lower end of the pivot pin retainer 16 contacts the pivot pin 8 to prevent the pivot pin 8 from rattling and to prevent the pivot pin 8 from falling out of the holding groove 17.

Thus, the door body 5 is rotatably held by the door body holding plate 14 via the pivot pin 8.

Next, regarding the removal of the door body 5, the pivot pin retainer is pressed.
Push the lower end of 16 and remove the pivot pin 8 from the holding groove 17, or
Alternatively, the pivot pin 8 is simply removed by applying a horizontal force.

The present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications such as the shape of the pivot pin retainer and the material of the door holding plate can be made.

[Advantage of Invention] As described above, according to the present invention, the number of parts is small,
In addition, the door can be attached and detached simply by inserting the pivot pin from the front of the device into the notch, the work is simple and no tools are required,
Since it requires less work space, it is extremely effective in reducing costs and improving maintainability.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention, FIGS. 2 (A) and 2 (B) are explanatory views showing a work procedure in this embodiment, and FIG. 3 is a partial perspective view showing a conventional example. FIG. 4 is a partial perspective view showing another conventional example. 1 is a front panel, 5 is a door, 8 is a pivot pin, 14 is a door holding plate, 15 is a notch, 16 is a pivot pin retainer, and 17 is a holding groove.

Claims (1)

(57) [Scope of utility model registration request] 1. A pivot pin is fixed to a door body, and a holding plate made of an elastic material is provided on a vertical frame portion of a panel opening to which the door body is attached. A small casing characterized in that a pivot pin holding groove is formed in the holding plate facing the tip of the pivot pin retainer, and the pivot pin can be inserted into and removed from the pivot pin holding groove. Body opening and closing device.