JPH0835353A - Turntable - Google Patents

Abstract

PURPOSE:To enable a turntable to be installed without excavating the ground surface. CONSTITUTION:A turntable main body 4 is rotatably carried by a base 2 set over a floor surface A via a great number of balls 3, and a drive means 5 is set on the floor surface at the outer circumference of the main body 4. The turntable main body 4 is rotated by friction force acted, between the turntable main body 4 and a friction wheel 21 by pressing the friction wheel 21 which is mounted onto the output shaft 20 of the drive means, and high in a frictional coefficient, onto the turntable main body 4 with pressure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turntable installed at a doorway or the like of a parking lot to change the direction of an automobile.

[0002]

2. Description of the Related Art In a conventional turntable for an automobile, the turntable body is housed in a recess provided on the floor so that the floor surface and the top surface of the turntable body are substantially flush with each other, and the turntable body is driven below the turntable body. The device is installed and the turntable body is rotated by the drive device via the flexion wheel, gears and chain.

[0003]

By the way, in the conventional turntable, since the turntable main body is housed in the recess of the floor surface, it takes a lot of time and cost to install the turntable, and rainwater or Dust easily collects, it takes time to remove it, and it is almost impossible to install it outdoors.Because the drive unit and the turntable body are interlocked with each other, leakage of water due to infiltration of rainwater into the drive unit etc. The turntable cannot be turned when it breaks down.

[0004] Therefore, an object of the present invention is to be installed without a large amount of work, which reduces the cost, and
Another object of the present invention is to provide a turntable that can be installed outdoors and can be easily rotated manually even if the drive device fails.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a turntable body which is rotatably installed, and a drive which is arranged on the outer periphery of the turntable body and rotates the body. The drive device is equipped with a friction wheel having a large friction coefficient on the output shaft, and the turntable body is rotated by frictional force by elastically pressing the wheel on the outer peripheral portion of the turntable body. It adopts the configuration that is.

[0006]

[Operation] The turntable body is rotatably installed on the floor surface, the drive device is arranged on the outer periphery of the body, and the friction wheel attached to the output shaft is elastically pressed against the outer periphery of the turntable body. When the drive mechanism is started in this state, the rotation of the friction wheel is transmitted to the turntable body by the frictional force between the friction wheel and the turntable body, and the table body rotates.

In addition, when the drive device fails, the turntable body can be rotated manually by releasing the pressure contact of the deflection wheel such as the spring tension to the turntable body.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment shown in FIGS. 1 and 2 is a type in which a drive device is installed on the floor surface, and the turntable 1
Rotatably supports a turntable body 4 via a large number of balls 3 on a base 2 installed on the floor A, and installs a drive device 5 on the floor A facing the outer periphery of the body 4. It has a structure.

In the base 2, a large number of annular plates 6 having different diameters are arranged concentrically around a central axis 7, adjacent annular plates 6 are connected to each other by a base material 8, and each plate 6 The guide rebars 9 are fixed at positions on the inner circumference side and the outer circumference side in the circumferential direction of the upper surface, and the guide rebar 9 can be directly installed on the floor surface A.

The turntable body 4 is formed by arranging a plurality of fan-shaped plates made of striped steel plates so as to have a planar disk shape. Adjacent side edges of the striped steel plates are connected by bolts and the central axis of the base 2 is arranged. In the state where the lower surface of the central portion is attached to 7, the angle member 10 and the band plate 11 are used on the lower surface side in a portion located directly above each annular plate 6 of the base 2 to form an annular shape concentric with the central axis 7. The rails 12 are fixed, and the ribs 13 are reinforced between the adjacent rails 12.

A large number of balls 3 made of steel balls or the like are interposed between the upper and lower facing surfaces of the rails 12 and the annular plates 6, and the turntable body 4 is smoothly rotated by the group of balls 3. It is rotatably supported. A slope plate 14 that is inclined downward toward the floor A is fixed to the outer periphery of the turntable body 4 so that the vehicle can be smoothly placed on the turntable body 4. Although not shown, a retainer is arranged between the adjacent balls 3 so that the balls 3 do not interfere with each other.

In the drive unit 5, a base plate 15 is fixedly arranged on the floor surface A at a position outside the outer circumference of the turntable body 4, and a mounting base 17 on which a reduction gear motor 16 is fixed is mounted on the base plate 15. The lower rear end of the lower plate 18 of the mount 17 is pivotally mounted on the base plate 15 by a pivot 19, and the motor 16 is centered on the pivot 19.
And the output shaft 2 of the motor 16
A friction wheel with a large friction coefficient attached to 0
1 is exposed to the outer peripheral portion of the upper surface of the turntable body 4. The reflection wheel 21 is made of rubber or urethane rubber.

A lower end of a bolt 22 vertically penetrating the lower tip side of the lower plate 18 of the mount 17 is pivotally fixed on the base plate 15, and a nut 23 screwed onto the upper end of the bolt 22 and the lower plate 18 are screwed together. The spring 24 is contracted to the bottom of the turntable body 4 by pushing down the entire mounting base 17 with the spring 24.
The turntable body 4 is rotated by the frictional force of the reflection wheel 21.

By using a striped steel plate for the turntable body 4, it is possible to effectively prevent slippage of the reflection wheel 21 and improve rotation transmission efficiency.

On the lower plate 18 of the mounting base 17, a lower end abuts on the base plate 15 by descending by screwing, and a levitation screw 25 for lifting the mounting base 17 to levitate the reflection wheel 21 above the turntable body 4. Provided,
By cutting the edge between the drive unit 5 and the turntable body 4, the turntable body 4 can be manually rotated when the drive motor or the like fails.

The motor 16 of the drive unit 5 and the upper portion of the reflection wheel 21 are covered with a cover 26. Since the motor 16 is on the ground, there is no occurrence of electric leakage due to infiltration of rainwater.

The first embodiment of the present invention has the above-mentioned construction, in which the base 2 is installed on the flat floor surface A, and the turntable main body is mounted on the base 2 through a large number of balls 3. 4 is placed and the drive device 5 is installed on the floor surface A outside the outer periphery of the main body 4, the turntable 1 is assembled, and as shown in FIG. Is pressed against.

When the motor 16 is started in this state, the rotation of the reflection wheel 21 is transmitted to the turntable main body 4 by friction, and the rotation of the main body 4 on which the automobile is mounted can change the direction. Further, if the levitation bolt 25 is screwed in to rotate the mount 17 upward and the friction wheel 21 is separated from the upper surface of the turntable body 4, the turntable body 4 can be rotated manually.

Next, a second embodiment shown in FIG. 3 is a type in which the driving device 5 is housed in a recess provided on the floor A,
The same parts as those in the first embodiment described above are designated by the same reference numerals and will not be described. The same applies to the subsequent examples.

In FIG. 3, a recess 31 is provided at one location on the floor surface A facing the outer periphery of the turntable body 4 to form a case 32.
The support base 3 embedded in the case 32 and arranged in the lower part of the case 32.
Nut member in which the tip end is pivotally attached to the case 32 by a pivot 34, and the upper end of a bolt 35 vertically penetrating the rear end of the support base 33 is fixed to the upper portion in the case 32 so that the 3 can be vertically swung. 36 and the lower end of the bolt 35 and the support base 33.
A spring 37 for pushing up the support 33 is contracted between the lower surfaces of the.

A worm gear reducer 38 is mounted on the support base 33.
Although not shown, a motor is mounted and the reflection wheel 21 is attached to the output shaft 39 of the speed reducer 38.

An annular friction plate 40 made of striped steel plate is fixed to the outer periphery of the turntable body 4, and the friction wheel 21 is pressed against the lower surface of the friction plate 40 to rotate the reflection wheel 21. The frictional force is transmitted to the turntable body 4.

In the second embodiment, the bolt 35
When the is rotated downward, the reflection wheel 21 is separated from the friction plate 40, and the turntable body 4 can be manually rotated.

Next, in the third embodiment shown in FIGS. 4 to 6, the upper surface of the turntable body 4 is made substantially flush with the floor surface A, and the drive device 5 is partially installed underground. This type has a motor installed on the ground.

In the third embodiment, the base 2 is provided on the floor surface A.
The turntable main body 4 is provided with a shallow recess a so that the upper surface of the main body 4 and the floor surface A are substantially flush with each other, so that the vehicle can be loaded and unloaded smoothly.

A case 31 is embedded in a recess 31 of the floor surface A in the outer peripheral portion of the turntable body 4, and a case 32 is formed.
A worm reducer 38 is fixed to a mounting base 33 having one end attached by a pivot 34, and a bolt 35 pivotally fixed to the case 32 penetrates the other end of the mounting base 33 and is screwed to the rear end of the bolt 35. By compressing the spring 37 between the fitted nut and the mounting base 33, the reflection wheel 24 mounted on the output shaft 39 of the speed reducer 38 is attached to the turntable body 4
The friction plate 40a made of striped steel plate provided on the outer peripheral surface of the is pressed against.

A waterproof motor 51 is installed on the ground at an appropriate position outside the turntable body 4, and the motor 51 and the input shaft 52 of the speed reducer 38 are connected by a flexible shaft 53.

The flexible shaft 53 is protected by a protective tube 54 and an outer vinyl pipe 55. For example, the flexible shaft 53 has a length of about 2 to 3 m, and connects the speed reducer 38 and the motor 51 with a gentle curve close to a straight line.
Ensure reliable conduction. Further, when the motor 51 is installed on the ground, there is no fear of electric leakage due to flooding, and the flexible shaft 53 can be used at any angle.

In the second embodiment described above,
The drive motor of the speed reducer 38 may be installed on the ground using a flexible shaft as in the third embodiment, and in the second and third embodiments, the speed reducer 38 may be installed as a waterproof measure. A waterproof type may be used, a drain port may be provided in the bottom of the case 32, an insertion hole for a pumping pipe may be provided, and the upper opening of the case 32 may be sealed with a lid.

The third embodiment is constructed as described above,
When the ground motor 51 is activated, the rotation of the reflection wheel 21 that is input to the speed reducer 38 via the flexible shaft 53 and is attached to the output shaft 39 of the friction plate 40 is performed.
The frictional force with a is transmitted to the turntable body 4, and the body 4 rotates.

[0032]

As described above, according to the present invention, the turntable body installed on the floor is elastically brought into pressure contact with the reflection wheel of the drive unit disposed on the outer periphery thereof, and the turntable is turned by the frictional force. Since the table body is rotated, a floor-mounted turntable can be configured, and excavation of the floor can be unnecessary or extremely reduced.
The installation cost can be significantly reduced.

Further, by eliminating the need for excavating the floor surface, the problems of rainwater infiltration and dust can be solved, and since the reflection wheel is driven by pressing it against the turntable body, if the reflection wheel is separated, When the drive device fails, the turntable body can be manually rotated.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a first embodiment showing a turntable of the present invention.

FIG. 2 is a vertical sectional front view showing an enlarged main part of the above.

FIG. 3 is a vertical cross-sectional front view of essential parts showing a second embodiment.

FIG. 4 is a plan view showing a third embodiment.

FIG. 5 is an enlarged cross-sectional plan view of the main part of the above.

[FIG. 6] Front view of the same section

[Explanation of symbols]

 1 turntable 2 base 3 ball 4 turntable body 5 drive device 16, 51 motor 17 mounting base 20 output shaft 21 reflection wheel

Claims (4)

[Claims] 1. A turntable body that is rotatably installed, and a drive device that is arranged on the outer periphery of the turntable body and that rotates the body. The drive device comprises:
The turntable is equipped with a friction wheel with a large friction coefficient on the output shaft, and the friction force causes the turntable body to rotate by elastically pressing the wheel onto the outer circumference of the turntable body. 2. The turntable according to claim 1, wherein the drive device is installed on the ground so as to be vertically swingable, and the elasticity of the spring causes the reflection wheel to be pressed against the upper surface of the turntable body. 3. The drive device comprises a speed reducer arranged at a position below the outer circumference of the turntable body, and a reflection wheel attached to the output shaft of the speed reducer is brought into pressure contact with the outer peripheral portion of the turntable body to be installed on the ground. The turntable according to claim 1, wherein the input shaft of the motor and the speed reducer are linked by a flexible shaft. 4. The turntable body is rotatably supported by a large number of balls interposed between the turntable body and the base, and a portion of the body on which the reflection wheel is pressed is formed of a striped steel plate. The turntable described in 3 to 3.