JPH0513104Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an electric cabinet for accommodating a television receiver or the like whose right and left directions can be changed by remote control.

[Prior Art] Conventionally, in this type of rotary cabinet, a cabinet body is slidably fitted to a pedestal via a bearing to support the weight of the cabinet body, and a drive shaft is connected from the bottom of the cabinet body. A friction wheel that protrudes almost vertically,
It is known that the friction wheel is in sliding contact with the outer peripheral surface of the pedestal, and this friction wheel is rotationally driven by an electric drive device attached to the cabinet body to rotate the cabinet body. −
(See Publication No. 11565).

According to the above configuration, when the electric drive device is driven by the remote control to rotate the friction wheel, the rotational force of the friction wheel is transmitted to the pedestal, and the cabinet body placed on the pedestal is smoothly rotated. It can be rotated.

Moreover, when the cabinet body is rotated manually or is locked due to contact with an obstacle, the friction wheel will slip on the sliding surface with the pedestal, causing undue stress on the electric drive device. This can effectively prevent damage.

Conventionally, as a rotary cabinet, the main body of the cabinet is rotatably supported on a pedestal via rollers around a rotation axis, and an annular wall is concentrically protruded from the pedestal, and the cabinet can be rotated manually. This is known (see Utility Model Application Publication No. 60-31366).

[The problem that the idea aims to solve]

However, according to the structure of the rotary cabinet disclosed in Japanese Utility Model Application No. 60-11565, a friction wheel is brought into sliding contact with the outer circumferential surface of the pedestal, and a frictional force is applied in the radial direction of the pedestal. Since it is rotationally driven, a high-precision rotating device such as a bearing is required, and the manufacturing and assembly work is troublesome.

In other words, if the cabinet body is rotatably supported on the pedestal with some wobbling,
Even if the friction wheel applies frictional force in the radial direction and attempts to make sliding contact, the cabinet body will be eccentric in the opposite direction with respect to the pedestal, making it impossible to transmit rotational driving force to the cabinet body and causing the cabinet to spin idly. There is.

On the other hand, according to the structure of the rotary cabinet disclosed in Japanese Utility Model Application Publication No. 60-31366, for example, when a resin pedestal is deformed by the rotation of the rollers, the annular wall protruding from the pedestal is deformed. There is a risk that the screw may come into contact with the bottom surface of the cabinet main body and damage the cabinet main body during the rotation operation.

This invention was made to solve the above problems, and the object is to provide a rotary cabinet that has a simple structure, is easy to manufacture and assemble, can achieve smooth rotation, and is free from damage. With the goal.

[Means to solve the problem]

The rotary cabinet according to this invention has an annular rail formed on the top surface of the pedestal concentrically with the rotation axis of the cabinet body, and a predetermined interval provided in the circumferential direction concentrically with the rotation axis on the bottom surface of the cabinet body. A rotary drive having a plurality of rollers mounted on the cabinet body and rolling on the top surface of the rail, and a drive roller mounted with a drive shaft running substantially parallel to the bottom surface of the cabinet body and pressed against the top surface of the rail. It is characterized by being equipped with a device.

[Effect]

According to the above structure, since the drive roller is mounted on the bottom surface of the cabinet body with its drive shaft running substantially parallel to the bottom surface of the cabinet body, the drive roller is pressed against the top surface of the rail by the weight of the cabinet body.
Due to the rotational frictional resistance, the cabinet main body is rotationally driven.

Furthermore, even when the cabinet body is rotatably supported on the pedestal with some wobbling, the drive roller is always pressed against the upper surface of the rail by the weight of the cabinet body, so the configuration is simple. Moreover, manufacturing and assembly work is extremely easy.

In addition, since multiple rollers run on the upper surface of the rails protruding from the pedestal, even a heavy cabinet body can be rotated easily, and even if the pedestal is made of resin, the rollers Even if the rail is deformed by rotation, there is no risk that the rail will come into contact with the bottom surface of the cabinet main body, and damage to the rail can be effectively prevented.

[Example of idea]

FIG. 1 is an exploded perspective view of an embodiment in which this invention is applied to a television receiver, and is a view seen from the front with the space between the cabinet body 1 and the pedestal 2 opened.
FIG. 2 is a bottom view of the cabinet body 1, and FIG. 3 is a sectional view of the bottom of the cabinet body 1 and the pedestal taken from the front along a plane passing through the rotation axis. In the figure, the upper surface 2a of the pedestal 2 is formed with a vertical axis 6 in the center and an annular rail 7 coaxially with this axis 6. 7a (referred to as "rail surface") serves as both a rail surface and a friction surface. Bottom surface 1a of cabinet body 1
The shaft hole 3 into which the shaft 6 is inserted, and the three rollers arranged in the three recesses 5 which are distributed and formed on the circumference facing the annular rail surface 7a. 4 are disposed, and in the recess 11 also formed on the bottom surface 1a, a motor 9 and a silicon rubber etc. attached to its drive shaft 9a are disposed. A rotary drive device 8 is provided, and the cabinet body 1 is placed on a pedestal 2 with a shaft 6 inserted into a shaft hole 3. When the rollers 4 are in contact with the annular rail surface 7a to support the load, the drive roller 10 is deformed by a predetermined amount, and its elastic force causes a predetermined amount of friction between the rollers 4 and the annular rail surface 7a. configured to generate force.

The rotary cabinet configured in this way is
A rotation signal sent from a remote control device (not shown) is received by a receiving device (not shown), and the motor 9 is rotated in the commanded direction.
Along with this, the drive roller 10 rotates, generating a rotational force between it and the annular rail surface 7a to rotate the cabinet body 1, and return to a position where the rotation signal is stopped or a rotation not shown. The rotation of the cabinet body 1 is stopped by the position limiting device at the position where the drive current to the motor 9 is cut off.

According to the above configuration, the drive roller 10 is mounted on the bottom surface of the cabinet body 1 with its drive shaft 9a running substantially parallel to the drive roller 10.
0 is pressed against the upper surface 7a of the rail 7 by the weight of the cabinet body 1, and the cabinet body 1 is rotationally driven by its rotational frictional resistance.

Furthermore, even when the cabinet body 1 is rotatably supported on the pedestal 2 with some wobbling, the drive roller 10 always remains on the upper surface 7 of the rail 7.
Since the weight of the cabinet main body 1 is pressed against the main body 1, the structure is simple and the manufacturing and assembly work is extremely easy.

In addition, since the plurality of rollers 4 run on the upper surface of the rail 7 protruding from the pedestal 2, even a heavy cabinet body 1 can be rotated easily. Pedestal 2 is the above roller 4
Even if the rail 7 is deformed by rotation, there is no risk that the rail 7 will come into contact with the bottom surface of the cabinet body 1, and damage to the rail 7 can be effectively prevented.

[Effect of idea]

As detailed above, this invention has a configuration in which the drive roller is brought into pressure contact with the upper surface of the rail by the weight of the cabinet body, and the cabinet body is rotated by the rotational frictional resistance. Assembly work is extremely easy;
Moreover, even if the cabinet itself is heavy,
It can be rotated easily without fear of damage.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of this invention, Fig. 2 is a bottom view of the cabinet main body of this embodiment,
FIG. 3 is a sectional view of the bottom of the cabinet body and the pedestal of this embodiment. 1... Cabinet body, 1a... Bottom surface, 2...
...Pedestal, 2a...Top surface, 3...Shaft hole, 6...Shaft,
7... Annular rail, 7a... Upper surface, 8... Rotation drive device, 10... Drive roller, 20... Roller device. Note that in each figure, the same reference numerals indicate the same parts.

Claims (1)

[Scope of utility model registration request] In a rotary cabinet, the cabinet body is placed on a pedestal, and the cabinet body is rotated by an electric rotary drive device that is driven and controlled by a remote control,
an annular rail formed on the top surface of the pedestal concentrically with the rotation axis of the cabinet body; and an annular rail mounted on the bottom surface of the cabinet body concentrically with the rotation axis at a predetermined interval in the circumferential direction; The cabinet comprises a plurality of rollers that roll on the upper surface, and a rotation drive device that has a drive roll that is mounted on the bottom surface of the cabinet body with a drive shaft running substantially parallel to the bottom surface and that is pressed against the top surface of the rail. A rotary cabinet characterized in that the driving roller is brought into pressure contact with the upper surface of the rail by the weight of the main body, and the cabinet main body is rotated by the rotational frictional resistance thereof.