JPS634404B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a draw-out type power circuit breaker device.

Conventionally, as this type of draw-out type power circuit breaker device, those shown in FIGS. 1 to 3 have been used. That is, 1 is a main body of the circuit breaker that conducts energization and disconnection, 2 is a truck, and this truck is provided with a pair of front wheels 3 and a pair of rear wheels 4, and a handle connection is provided at the end of the truck. When the hole 5 is drilled and the circuit breaker is moved linearly in the front and back direction,
Front wheels 3 and rear wheels 4 attached to the truck part 2
When changing the moving direction of the circuit breaker using
As shown in FIG. 3, insert the pin 6a of the wheeled handle 6 for transportation into the hole 5 of the truck section 2, push the handle 6 in the direction of the arrow, and move the rear wheel 4 of the truck section 2 off the ground. It is floated and the handle is pulled in the direction of movement.

As mentioned above, in the case of conventional draw-out type power circuit breakers, when moving the circuit breaker, a separately prepared moving handle is connected to the circuit breaker, and by operating the handle, the rear wheels of the circuit breaker are moved. A lifting operation is required, and as a result, if the weight of the circuit breaker increases, a large operating force is required to lift the wheels, making operation difficult. Further, the wheeled handle for transportation is usually stored separately from the circuit breaker, so when the circuit breaker is moved, the transportation handle must be retrieved from the storage location each time.

The present invention has been made in order to eliminate the defects of the conventional devices described above, and is a drawer-type power circuit breaker that allows the direction of movement of the circuit breaker to be changed without using an attached handle. The purpose is to provide equipment.

The drawer type power circuit breaker device according to the present invention includes:
It consists of a circuit breaker main body and a truck that supports the circuit breaker body. A pair of intermediate wheels are provided between a pair of front wheels and a pair of rear wheels which are movably mounted, and which roll in contact with the floor surface when the truck part is pulled out. It has characteristics.

Hereinafter, the present invention will be specifically explained based on drawings showing an example of its implementation.

In FIGS. 4 and 5, 1 is the main body of the circuit breaker, and 2 is a truck. On the truck 2, the circuit breaker is mounted so as to be freely rollable on an installation rail 10 installed on the floor. A pair of front wheels 3 and a pair of rear wheels 4 are provided.
A pair of intermediate wheels 7 are located at the lower part of the center of gravity of the circuit breaker between the rear wheels 4 and the rear wheels 4, and are slightly lower than the installation rail surface that the front and rear wheels 3 and 4 contact when the truck section 2 is pulled out. It is installed lowered so that it touches the floor. In the illustrated example, the intermediate wheel 7 is located inside the front and rear wheels 3 and 4, but it may be located outside.

A panel 8 that stands up on the front side of the circuit breaker body 1 is provided at the end of the truck section 2, and an operating grip 9 is attached to the front surface side of the panel 8.

In the drawer-type power circuit breaker device configured as described above, when in use, as shown in FIG.
0, the intermediate wheels 7 are removed from the rails 10, and are placed in a floating state without contacting the floor surface.

When the circuit breaker is to be moved, the grip 9 of the front panel 8 is grasped and pulled, and the trolley section 2 is pulled out from the rail 10. With this withdrawal operation,
The front wheels 3 and the rear wheels 4 are mounted on installation rails 10.
When it comes off, it floats off the floor and only the intermediate wheels 7 come into contact with the floor instead, so the intermediate wheels 7 can be used to move the circuit breaker back and forth, and the direction of movement can also be easily changed. be able to.

In particular, if the intermediate wheel 7 is placed at the center of gravity of the circuit breaker, the smoothness of the direction change operation can be greatly improved.

Although the above embodiment has been described in the case of a drawer-type power circuit breaker, the same effects as described above can be obtained even if the present invention is applied to other switching devices.

As described above, according to the present invention, when moving the drawer-type power circuit breaker device, a moving handle is not used, so the operation is extremely easy, and in particular, there is no need to lift the circuit breaker when moving. Moreover, the moving operation can be performed immediately without having to order a moving handle each time. In addition, since the device does not have a moving handle connection, the overall aesthetic appearance of the device can be enhanced when the front panel is attached.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional device, Fig. 2 is a plan view, Fig. 3 is a side view of the device showing how the moving handle is used, and Fig. 4 is a drawer-type electric power device showing an embodiment of the present invention. A side view of the circuit breaker device, and FIG. 5 is a front view of the installed state. In the drawing, 1 is the main body of the circuit breaker, 2 is the truck, 3 is the front wheel, 4 is the rear wheel, 5 is the handle connection hole, and 6
is a moving handle, 6a is a pin, 7 is an intermediate wheel,
8 is a panel, 9 is a grip, and 10 is an installation rail.

Claims (1)

[Scope of Claims] 1. Consists of a circuit breaker main body and a truck that supports the circuit breaker body, and the truck has a breaker installed on the floor to move the truck in the front and back direction. A pair of intermediate wheels that roll in contact with the floor surface when the truck part is pulled out, between a pair of front wheels and a pair of rear wheels that are rotatably placed on the installation rail. A drawer-type power circuit breaker device characterized by being provided with. 2. The drawer-type power circuit breaker device according to claim 1, wherein the intermediate wheel is provided below the center of gravity of the circuit breaker main body. 3. The drawer-type power circuit breaker device according to claim 1 or 2, characterized in that a panel having an operating grip is erected at an end of the trolley portion.