JPH0719983B2 - Structure of assembled cabinet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a cabinet for accommodating electronic communication equipment, in which a bottom plate and a top plate are thinned and, at the same time, a metal fitting for bonding having sufficient strength is separately prepared to reduce the weight of the entire cabinet. An electronic communication equipment assembly cabinet in which a door and a back cover are arranged on the front and rear open surfaces of a frame body composed of a bottom plate, a top plate, and a pair of left and right side plates for the purpose of reducing the Bending the front and rear edges of the bottom plate and the top plate material provided with a rectangular cutout at a right angle to form a contact surface with the inner surfaces of the door and the back lid after assembly,
As a separate member, an elongated flat plate member having a width corresponding to the width of the bottom plate or the top plate provided with tongue pieces bent at a right angle and having a width corresponding to the width of the cutout portion at both ends is prepared, and this is used as the bottom plate. And arranged along the front and rear edges of the top plate and fixed so that the tongue pieces occupy positions on both sides of the contact surface and the front surface thereof is in a positional relationship in which the front surface is retracted by the plate thickness from the contact surface. The front and rear edges of both side plates are bent at a right angle to form a channel portion having a U-shaped cross section capable of receiving the tongue piece, and the tongue piece is inserted into the channel to form a bottom plate and a top plate and both side plates. Are assembled and screwed to their joints to form a frame body in which the front and rear surfaces of the frame body are aligned in the same plane.

[Industrial application field]

The present invention relates to a cabinet that houses electronic communication equipment.

[Conventional technology]

As shown in FIG. 8, the conventional cabinet of the above-mentioned type has a front door 6 and a back cover 7 on the front and rear open surfaces of the frame body composed of a bottom plate 1, a top plate 2 and a pair of left and right side plates 4. It is made by mounting.

As shown in FIG. 9, the frame body includes a bottom plate 1 and a top plate 2.
Bend both side edges and form tongue pieces 3 at the four corners (only the bottom plate is shown in the figure), and the front and rear edges of the pair of left and right side plates 4 are U-shaped as shown in FIG. The channel portion 5 formed by bending is inserted, fitted and fixed, and assembled.

[Problems to be Solved by the Invention]

In the conventional cabinet having this structure, the bottom plate and the top plate are bent to form a tongue piece, and this portion is used as a joint region with the side plate. It is necessary to have strength as. Therefore, there is no choice but to use thick metal plates for the bottom plate and the top plate, and there is a drawback that the weight as a whole increases.

Further, as is apparent from FIG. 10, since the front surface A of the bottom plate (top plate) 1 is at a position retracted backward from the front surface B of the side plate 4 by the plate thickness t of the side plate, In order to improve the adhesiveness of the base plate to prevent the leakage of radio waves and from a design point of view, spacers 8 and 19 having the same thickness as the side plates are welded and fixed in the area of the front surface A of the bottom plate 1, The gap is filled so as to be flush with the front surface B of the side plate 4. This tends to increase the weight of the cabinet.

The present invention solves the problems of the prior art, thins the bottom plate and the top plate, and at the same time prepares a metal fitting having sufficient strength instead of the tongue piece to reduce the weight of the entire cabinet. The purpose is to

Furthermore, it is an object of the present invention to provide a cabinet structure that takes measures to prevent the occurrence of radio wave leakage and electrostatic damage.

[Means for Solving the Problems]

The purpose is an assembly cabinet for electronic communication equipment in which a door and a back cover are arranged on the front and rear open surfaces of a frame body composed of a bottom plate, a top plate, and a pair of left and right side plates, and a substantially square cutout portion at four corners. The front and rear edges of the bottom plate and the top plate material provided with are bent at right angles to form a contact surface with the inner surfaces of the door and the back cover after assembly, and as a separate member, a width corresponding to the width of the cutout portion is formed. A slender flat plate member having a width corresponding to the width of the bottom plate or the top plate having both ends of the tongue bent at a right angle is prepared, and this is arranged along the front and rear edges of the bottom plate and the top plate. The tongue pieces occupy positions on both sides of the abutment surface and are fixed so that the front surface of the abutment surface is retracted by the thickness of the abutment surface, while the front and rear edges of both side plates are bent at a right angle. Forming a channel portion having a U-shaped cross section capable of receiving a piece, A bottom plate, a top plate, and both side plates are assembled by inserting a piece into the channel, and the joint portions are screwed to form a frame main body in which the front and rear surfaces of the frame main body are aligned in the same plane. It is achieved by the cabinet structure.

[Action]

Since the front surface of the frame body composed of the bottom plate, the top plate and both side plates forms the same plane, when the doors are attached to the front and rear open surfaces, the inner surface of the door and the front surface of the frame body are separated from each other. There is no step between them and there is no gap. Adhesiveness is also improved when a rubber packing made of a conductive material is interposed in order to establish conduction between the two.

Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments shown in the drawings.

〔Example〕

As shown in FIG. 1, the cabinet of the present invention has a bottom plate 1
The frame body is composed of four members: 0, a top plate 11, and left and right side plates 12, and a front door 13 and a back cover 14 attached to front and rear open surfaces of the frame body.

As shown in FIG. 2, the bottom plate 10 has a contact surface 22 formed on the front surface by bending the front and rear edges of the sheet metal material obtained by cutting the four corners of the rectangle into a substantially square shape at right angles.

On the other hand, a flat plate member 15 having a shape as shown in FIG. 3 having a length substantially equal to the width of the bottom plate 10 is prepared, and the overhanging portions on both sides having a width d equal to the width of the square cut portion of the bottom plate 10 are prepared.
Bend 15a at a right angle to form a tongue piece 16 that rises toward the front. Then, the flat plate member 15 is attached to the bottom plate 10.
The tongue pieces 16 are arranged on both sides of the contact surface 22 by welding to the upper side, and are positioned so as to be retracted rearward from the contact surface 22 by the plate thickness t of the side plate. This state is shown in FIG. The top plate 11 is also subjected to the same processing.

As shown in FIG. 5, the side plate 12 is provided with a longitudinal channel portion 17 having a U-shaped cross section by bending both front and rear edges of the sheet metal material inward twice at right angles.
The inner method of the width of is set to such an extent that it can fit with the tongue piece 16. The wall 17a inside the lower region of the channel portion 17
Eliminates only the height h of the flat plate member 15 to prevent interference between the two during assembly.

Further, as shown in FIG. 6, although there is a slight difference in shape, the top plate has a similar configuration.

In order to assemble the bottom plate 10, the top plate 11, and the side plates 12 thus prepared, the tongue pieces 16 are inserted into the upper and lower open ends of the channel portion 17 of the side plate 12, as shown in FIG. Position the four. Then, through the hole 18 provided in the front surface 20 of the channel portion 17, the screws 21 are screwed into the screw holes 19 provided in the tongue piece 16 corresponding to this, thereby fixing the four members to form the frame body. To do.

In the frame body completed in this way, the front surface 20 of the channel portion 17 of the side plate 12 is protruded forward by the plate thickness t from the tongue piece 16, and as a result, the contact surfaces 22 of the bottom plate 10 and the top plate 11 are formed.
Lined up in the same vertical plane as. This also applies to the rear surface of the frame body. As indicated by the hatched lines in FIG. 1, a conductive coating 24 is applied to the regions exposed on the front and rear surfaces of the frame body.

When the door 13 and the back cover 14 are attached to the frame body, a packing 23 made of a conductive rubber material is fixed to the inner surface of the frame body in a frame shape.
Is adhered to the conductive coating 22 which is completely on the same plane,
A perfect electromagnetic seal is obtained.

[Effects of the Invention] As described in detail above, according to the present invention, the tongue for engaging with the side plate is constituted by a member different from the bottom plate and the top plate, and therefore, the tongue is given strength. Therefore, even if a sheet metal material having a sufficient plate thickness is used, it does not affect the plate thickness of the bottom plate or the top plate itself, and hence the weight, as in the conventional case, and the frame body can be made lightweight. it can.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the configuration of a cabinet of the present invention, FIG. 2 is a perspective view showing the molding of a bottom plate, FIG. 3 is a perspective view showing the molding of a flat plate member for a tongue piece, and FIG. Is a perspective view showing the arrangement of the flat plate member and the bottom plate, FIG. 5 is a perspective view showing the molding of the side plate, FIG. 6 is a perspective view of the front end of the top plate, and FIG. 7 is the bottom plate and the side plate. Fig. 8 is a perspective view showing the assembly of Fig. 8, Fig. 8 is a perspective view of a conventional cabinet, Fig. 9 is a perspective view showing a tongue piece of a bottom plate of the conventional cabinet, and Fig. 10 is a side plate and a bottom plate of the conventional cabinet. It is a top view which shows an assembly. 10 ... bottom plate, 11 ... top plate, 12 ... side plate, 13 ... door, 14 ...
… Back cover, 15 …… flat plate member, 16 …… tongue piece, 17 …… channel part, 18 …… hole, 19 …… screw hole, 20 …… front of channel part, 21 …… screw, 22 …… this Face to face.

Claims (1)

[Claims] 1. Electronic communication in which a door (13) and a back cover (14) are arranged on the front and rear open surfaces of a frame body composed of a bottom plate (10), a top plate (11) and a pair of left and right side plates (12). An equipment assembly cabinet, in which the bottom plate having substantially square cutouts at its four corners and the front and rear edges of the top plate material are bent at a right angle to make contact with the inner surfaces of the door and the back cover (22 ) Is formed,
As a separate member, an elongated flat plate member (15) having a width corresponding to the width of the bottom plate or the top plate provided with tongue pieces (16) bent at a right angle and having a width corresponding to the width of the cutout portion is provided. Prepare and arrange them along the front and rear edges of the bottom plate (10) and top plate (11), and the tongues (16) occupy positions on both sides of the contact surface (22), and their front surfaces contact. It is fixed so that it has a positional relationship of being retracted from the surface (22) by the thickness of the plate, while the front and rear edges of both side plates (12) are bent at a right angle to receive the tongue piece (16). A channel section (17) having a cross section is formed, and the tongue piece (16) is connected to the channel (17).
By assembling the bottom plate (10), the top plate (11) and the both side plates (12), and screwing the joints (18, 19, 21) so that the front and rear faces are in the same plane. A cabinet structure that features a complete frame body.