JPS586955B2 - Kogentsuki Kaiten Kanban Souchi - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rotating signboard device with a light source.

A rotating signboard device equipped with a light source can significantly enhance the advertising effect by exhibiting lighting effects in addition to the versatility due to its rotational movement.

However, in conventional devices, the light source is attached to a stationary part such as a support, and not to a rotating part such as a signboard, which makes it difficult to introduce current into the light source attached to a rotating part. This is said to be one of the reasons.

However, if the light source is fixed to a stationary part, the distance between the light source and the signboard surface of the cylindrical signboard changes during one rotation of the cylindrical signboard, resulting in the intensity of light reaching the signboard surface. The problem is that it is constantly changing and cannot be maintained constant.

In addition, when the cross-sectional shape of a cylindrical sign is rectangular, the distance from the light source differs greatly between the short side of the signboard and the long side of the signboard, so the intensity of light on each signboard side is greatly affected. There is a problem that a difference arises and the signboard effect is impaired.

Therefore, in order to eliminate such drawbacks, it is desirable to have a device in which the light source is attached to the rotating signboard so that the light source can rotate together with the signboard.

Another problem with conventional rotating signage devices is that the drive motor not only rotates the signboard, but the drive shaft of the motor also has to support the weight of the signboard. In order to drive the rotation, it is necessary to use a large motor with a considerably large capacity.

Furthermore, in conventional devices, the drive shaft of the motor and the rotating signboard are directly connected, which can cause accidents involving people if a person comes into contact with the signboard, or if the signboard falls over due to strong winds. The problem is that the motor continues to rotate even though the motor is stopped, which can lead to damage or burnout of the motor.

The purpose of the present invention is to eliminate the drawbacks of the conventional device as described above, to make it possible to attach a light source to the rotating signboard side, and to make it possible to drive a rotating signboard of the same size as the conventional device using a small motor instead of a large-capacity drive motor. To provide a rotating signboard device with a light source that can be rotated and does not cause burnout of the motor even if the signboard falls down.

A rotating signboard device with a light source according to the present invention that achieves the above object is a rotating signboard device in which a drive motor is provided on a support column, and a cylindrical signboard is rotated around the support column by the power of the drive motor. A light source and a slip ring connected to the light source by a conductive wire are installed inside the signboard, a brush that contacts the slip ring and is connected to a power source by a conductive wire is attached to the pillar, and a support is formed on the top of the pillar. The rotating shaft is supported in the thrust direction by a bearing provided on the support base through the stepped portion of the rotating shaft, and the rotational center of the cylindrical signboard is supported without being fixed to the upper end of the rotating shaft, and the rotating shaft is The lower end of the shaft is connected to the drive shaft of the drive motor.

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 is a longitudinal cross-sectional view of a rotating signboard device with a light source according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 1.

In the figure, a pillar P stands vertically on a base 1, and a cylindrical signboard R that covers the pillar P inside and rotates around the pillar P is provided.

The column P is composed of a column main body 2, frames 3 and 4 attached to the upper end of the column main body 2, and a support base 6 formed on the upper part of the frame 4.

The frames 3 and 4 are assembled by a plurality of support rods 5 so as to form a space at a constant interval.

On the other hand, the cylindrical signboard R is composed of a cylindrical signboard main body 12 and a guide tube 13 fixed to the rotational center of the upper surface of the cylindrical signboard main body 12.

A motor 7 having a built-in speed reduction mechanism is attached to the lower surface of the frame 4 constituting the above-mentioned support P.

In addition, a bearing 8 is mounted on the support base 6 on the upper side of the frame 4.
is mounted, and a rotating shaft 8 is rotatably supported by this bearing 8.

The rotating shaft 8 is supported in the thrust direction via a stepped portion in the middle thereof.

The lower end of this rotary shaft 9 fits into the drive shaft 10 of the motor 7 and is fixed with a screw 11.

Therefore, as the motor 7 rotates, the rotating shaft 9 is rotationally driven.

The rotational center of the cylindrical sign body 12 is supported at the upper end of the rotating shaft 9 without intervening fixing means such as screws.

Therefore, when the rotating shaft 9 rotates, the cylindrical sign body 12
rotates by receiving rotational torque only from the frictional force between it and the upper end of the rotating shaft 9, and if an overload is applied, such as when a person touches the cylindrical sign R side, the upper end of the rotating shaft 9 and the cylindrical sign body will rotate. There is a slip between the shaft and the center of rotation at 12, and the overload is released.

A guide tube 13 provided at the center of rotation of the cylindrical sign body 12 surrounds the outer periphery of the upper end of the rotating shaft 9, so that the upper end of the rotary shaft 9 always maintains the position of the center of rotation of the cylindrical sign body 12.

Reference numeral 14 is a lead wire for the motor 7, which is connected to an external power source through the inside of the support main body 2.

The cross-sectional shape of the cylindrical sign body 12 may be either square or round, as long as it allows necessary advertising letters, patterns, or pictures to be drawn on its outer surface.

The cylindrical sign body 12 is made of a translucent or transparent material, and a light bulb 15 serving as a light source is attached to the inside thereof.

Of course, this light bulb 15 can also be replaced with other light sources such as a fluorescent light.

A slip ring 17 is attached to the outer periphery of the guide tube 13 that constitutes the cylindrical sign R through an insulating material 16, and this slip ring 17 rotates together with the guide tube 13, that is, the cylindrical sign R. .

On the other hand, a brush 18 is provided so as to come into contact with the surface of this slip ring 17.

This brush 18 is held by a frame 19 fixed to a column P, more specifically, a support base 6, and is always subjected to a pressing force toward the slip ring 17 by a built-in spring 20.

A conducting wire 21 is connected to this brush 18 so as to conduct current from an external power source.

Therefore, the current introduced by the conductor 21 is conducted via the brush 18 to the slip ring 17 and from this slip ring 17 via the conductor 22 to the bulb 15.
, the light bulb 15 emits light.

According to the mainstream rotating signboard device with a light source, a light source (light bulb 15) and a slip ring 17 connected to the light source with a conductive wire 22 are attached to the inside of the cylindrical sign R, and the slip ring 17 is brought into contact with the light source. Since the brush 18 is attached to the support column H, current can be supplied from an external power source to the light source on the cylindrical signboard R side through the brush 18 and slip ring 17 that are in contact with each other.

Therefore, the signboard surface of the cylindrical signboard R is always irradiated with light of a constant luminous intensity from a certain position inside the signboard, and a stable signboard effect can be obtained.

Further, the rotating shaft 9 supporting the tube-folding sign R is supported in the thrust direction via the stepped portion of the rotating shaft 9 with respect to the bearing 8 provided on the support base 6 at the top of the column R. All of the weight of the hanging signboard is received by the support base 6 via the bearing 8.

Therefore, the weight of the cylindrical signboard R is not loaded on the drive shaft 10 of the motor 7 connected to the lower end of the rotating shaft 9.

As a result, it is sufficient for the motor 7 to have a capacity to rotate the cylindrical signboard R, and there is no need to consider the capacity to drive the signboard while supporting the weight of the signboard.

Moreover, even when the cylindrical signboard R is overloaded at startup or due to wind or mischief, a slip occurs between the rotating shaft 9 and the cylindrical signboard R, and no large load is applied to the motor 7.

Therefore, unlike conventional devices, a large-capacity motor is not required, and a small-capacity motor can be sufficient for driving the device.

In addition, the upper end of the rotating shaft 9 is not fixed to the cylindrical signboard H, and the driving force is transmitted only by frictional force, so even if the signboard itself stops due to falling, for example, the rotating shaft 9 will remain attached to the cylindrical signboard R. Since the motor slips against the motor, there is no risk of excessive load being applied to the motor, causing accidents such as burnout, or accidents that could cause a person to get caught if they come into contact with it.

As described above, according to the present invention, it is possible to attach the light source to the side of the rotating signboard, and it is also possible to use a small motor with a small capacity as the drive motor instead of a conventional large capacity one, and it is possible to prevent the motor from burning out. A rotating signboard device with a light source that is less likely to cause accidents such as these can be obtained.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a rotating signboard device with a light source according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line A-A in FIG. 1. P... Prop, 2... Prop body, 6...
...Support stand, 7...Motor, 8...
...Bearing, 9...Rotating shaft, 10...
... Drive shaft, R ... Tubular signboard, 12 ...
- Cylindrical sign body, 15...Light bulb (light source), 17
...Slip ring, 18...Brush, 2L22...Conductor.

Claims (1)

[Claims] 1. In a rotating signboard device in which a drive motor is provided on a support and a cylindrical signboard is rotated around the support by the power of the drive motor, a light source is provided inside the cylindrical signboard and the light source is connected to the light source by a conducting wire. A slip ring is attached, and a brush that contacts the slip ring and is connected to a power source by a conductor is attached to the column, a support is formed at the top of the column, and the rotating shaft is connected to the bearing provided on the support. The rotary shaft is supported in the thrust direction via a stepped portion, the rotational center of the cylindrical signboard is supported without being fixed to the upper end of the rotary shaft, and the lower end of the rotary shaft is connected to the drive shaft of the drive motor. A rotating signboard device with a light source featuring: