JPS6120814Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stopper mechanism for pulling out a unit of a unit type structure that collectively stores protective relays, etc. in a switchboard, cubicle, etc.

It is well known that a protective relay or the like housed in a switchboard or cubicle is constructed as a pull-out unit to reduce the size and facilitate maintenance and inspection.

By the way, in the past, many units of this type of structure were not equipped with a stopper mechanism when the drawer was drawn out. On the other hand, protective relays housed in a switchboard or cubicle are connected to the panel by various people, but in most cases, as shown in Figure 1, a cable 9 is used to connect the relay group to the panel via a connector 8. Alternatively, the devices in the panel are connected to each other, and the unit 3 is pushed into the panel 1 and fixed to the panel surface with the screws 5. When inspecting and repairing, loosen the screws 5 and pull the unit 3 forward using the handle 4. I have to. In this case, the weight of the unit 3 is relatively heavy, and if there is no stopper mechanism, it is likely that the unit 3 will be pulled out too much when it is attached or detached, and if it is pulled out too much, excessive weight will be applied to the connector 8 and cable 9, leading to damage. There was also a defect in that unit 3 itself was in danger of falling off the board.

From this perspective, the present invention has been made with the aim of eliminating the above-mentioned defects. According to the present invention, this is achieved by providing a stopper mechanism of a novel configuration, which includes a stopper and a function for canceling the stopper function, in the middle of drawing out the unit.

The structure will be described below with reference to FIGS. 1 to 5 showing examples.

1 and 2 are a plan view and a side view of a board in which a stopper mechanism according to the present invention is attached to a relay unit. The figure shows unit 3 from the board.
It shows the state when it is pulled out about 1/3. A decorative board 6 is attached to the front of the unit 3, which is framed and houses multiple relays.
The board 1 has a bent part 2 on the upper side of the front.
is provided.

Now, the mounting position of the stopper mechanism 30 does not matter, but when the unit 3 is pulled out, the load is not applied to the front, so the unit 3 is temporarily stopped when it is pulled out about 1/3, and the frame 7 above the outer frame of the unit 3 is moved. A stopper mechanism 30 is attached to both sides of the stopper mechanism.

Next, the stopper mechanism will be explained in detail with reference to FIGS. 3 and 4 and FIG. 5, which is an exploded perspective view for better understanding.

3 to 5 show, for example, a stopper mechanism 30 attached to the left side of the unit 3 in the drawing. In the embodiment, the support body 10 is made of a flat plate, and both sides of one longitudinal end are rounded to form a shaft hole 21. ing. In addition, there may be one shaft hole 21 in the center, and in this case, stoppers 12 and 13, which will be described later, are disposed so as to bridge on both sides thereof. To prevent rotation, it is preferable to cut out the center part, use a bridge part, or provide it separately. Further, the shaft hole 21 may be formed in the support body 10 by welding a pipe to a flat plate, regardless of the method shown in the drawings. Flat plates 12 and 13 are integrally welded at different angles of 90 degrees at a required interval to the outer peripheral surface of the pipe 11 which is hinged to the shaft hole 21 of the support body 10 via the shaft 16.
is attached so that it can be raised and lowered freely on the open side of the support. This flat plate 12 (hereinafter referred to as the first stopper) plays the role of a stopper when the unit is pulled out, and the flat plate 13 (hereinafter referred to as the second stopper)
The side serves to release the first stopper 12 and also serves as a stopper when the unit 3 is inserted. That is, when the unit 3 is mounted on the board 1, the first stopper 12 is upright, and the second stopper 13 is down. When the unit 3 is pulled out, the raised protrusion of the first stopper 2 comes into contact with the bent portion 2 of the board 1 and is temporarily stopped at that position. In this state, when the connector 8 is disconnected and the lying second stopper 13 is rotated 90 degrees to stand up, the first stopper 12 lies horizontally and can be penetrated through the bent portion. Therefore, as can be seen from the function, the material of the stoppers 12 and 13 may be a round bar or a square bar instead of a flat plate. Sho stopper 1
The pipe 11 is fixed with a spring 19 secured by a screw 20 in order to prevent the parts 2 and 13 from moving loosely and impairing their functions.
In the figure, two notches 14 and 15 are provided in the center of the pipe 11, and these notches 14 and 15 are
The pipe 11 is held down by a spring 19 to prevent it from rotating. In order to provide the same anti-rotation function as the notches 14 and 15, a small flat plate may be welded to the outer surface of the pipe 11. Retaining rings 17 are installed at both ends of the shaft 16 and fit into grooves provided in the shaft 16 via washers 18 . A split pin may be used to prevent the shaft 16 from falling off.

The stopper mechanism 30 having the novel structure described above is attached to both sides above the unit 3. When installing the unit 3, the unit 3 is screwed to a position deep enough so that when the unit 3 is pulled out, the load will not be applied to the front. When installing unit 3 on panel 1, use second stopper 1.
3 and push it into the board with the first stopper 12 facing down and insert the second stopper 13 into the bent part 2 of the board 1.
Connect the connector 8 at the position where it touches and stops,
Next, by knocking down the second stopper 13, the first
The stopper 12 will stand up, but since the stopper 12 is already located inside the panel and does not get in the way, push the decorative plate 6 of the unit 3 until it is flush with the panel surface and fix it with the screws 5. When the unit 3 is pulled out, the first stopper 12 remains upright, so the bent portion 2
It will stop at the position where it touches. In this state, the connector 8 is disconnected, the second stopper 13 is raised, and the first stopper 12 is laid down, so there is no obstruction to the drawer and the remaining portion can be safely pulled out. The stopper mechanism 30 may be mounted symmetrically on the left and right sides, and the stoppers 12 and 13 may be the same and used in reverse.

As described above and as can be seen from the diagram, two stoppers with different functions, which are hinged to the support and are spaced apart and at different angles, are made to work together and are prevented from constantly moving, so that the function of the stopper is always maintained. When pulling out the unit without damaging it,
The stopper stops the unit in the middle of the drawer, making it safe and easy to disconnect the connector, and the operation of the second stopper releases the pullout blocking condition, making subsequent drawers safe. When inserting the unit, the second stopper After the connector is stopped midway and the connector is connected, the push-in prevention state is released, allowing the installation work to be carried out safely and easily. Although the description has been made regarding a device having a relay unit structure, the present invention can be applied to other devices equipped with a heavy pull-out mechanism.

[Brief explanation of the drawing]

Fig. 1 is an installation plan view of a relay unit equipped with a stopper mechanism according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 A and B show different states of the stopper. A plan view, FIGS. 4A and 4B are sectional views taken along line BB in FIGS. 3A and 3B, and FIG. 5 is an exploded perspective view of the stopper. Identical parts in FIGS. 1 to 5 are designated by the same reference numerals. DESCRIPTION OF SYMBOLS 1... Board, 2... Bend part, 3... Relay unit, 7... Frame, 8... Connector, 10...
Support, 11... Pipe, 12... First stopper, 13... Second stopper, 14, 15... Notch, 16... Shaft, 19... Spring.

Claims (1)

[Claims for Utility Model Registration] 1. A stopper support that is fixed to a predetermined location of a drawer unit, and a stopper support that is hinged to the support and that is arranged at a right angle or a near right angle to each other at a required interval. A first stopper and a second stopper are provided in the form of a protrusion that are integrally formed so that the other one can be raised and lowered when the other is raised, and the first stopper is installed so as to be located inside the second stopper. However, when storing the unit, the prevention of storage by the first stopper is released when the second stopper is in the upright state, and then the prevention of storage by the second stopper itself is released by laying down the second stopper. When pulling out the unit, use the second
1. A stopper mechanism for a drawer-type unit, characterized in that the prevention of drawing by the first stopper is released by raising the stopper. 2 Utility Model Registration Scope of Claim 1. The stopper mechanism for a drawer-type unit, wherein the stopper support has means for preventing the stopper from shifting.