JPH0130242B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rotary decorative lamp whose shade is rotated by a motor.

Conventional structure and its problems Conventionally, in rotary decorative lights in which the shade is rotated by a motor, there is a problem in that if external rotational force is applied to the shade, the inside of the motor, especially the speed reduction mechanism, will be damaged, making it difficult to use in actual use or during transportation. There were some inconveniences.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to provide a rotary decorative lamp in which the motor is extremely unlikely to be damaged even if a rotational force is applied to the shade from the outside.

Composition of the Invention The present invention includes a main body having a built-in motor and a light source provided on an end face, and a shade that covers the light source, and the shade is attached to an end of a rotating shaft of the motor that protrudes from the main body so as to be rotatable. It is something to support.

Nuts are then screwed onto the ends of the rotating shaft of the motor at intervals, and washers spaced apart from each other are provided between each nut with a cylindrical spacer interposed therebetween. The edge of the hole of the shade is provided with a frictional force through an intervening body made of a flexible material, and is supported so as to be freely rotatable against external force.

DESCRIPTION OF EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show a first embodiment, in which a main body 1 has a built-in motor 2. FIG. The motor 2 is attached to a substantially U-shaped chassis 4 via a substantially L-shaped mounting piece 3, and the top surface of the chassis 4 is connected to a substantially cylindrical recess 6 formed at the top of a substantially cylindrical cover 5. It is attached to the bottom of the unit with screws, etc. The lower end of the approximately inverted V-shaped hanging tool 8 at the lower end of the chain 7 for hanging passes through the recess 6 and the chassis 4, respectively, and is hooked to the chassis 4. Power is supplied to the main body 1 by a cord 10 including an intermediate switch 9. 11 is a plug, 12
is Heaton. A substantially circular end plate 13 is attached to the lower end of the chassis 4 with screws or the like, and the rotating shaft 14 of the motor 2 protrudes from a hole 15 in the end plate 13, which is formed to have an inner diameter slightly larger than its outer diameter. The rotating shaft 14 includes a shaft 16 protruding from the motor 2, a first joint 18 attached to the shaft 16 with a screw 17, and a second joint attached by screwing to the end of the first joint 18. 19 and this second joint 19 with screw 2.
0, a nut 22 screwed into the vicinity of the end of the rod 21, and a washer 24 and a washer 25 separated through a cylindrical spacer 23.
, a spring washer 26, and a nut 27. An intervening body 28 made of a flexible material such as rubber is arranged on the end face of the washer 24, and a hole 30 at the lower end of a substantially spherical shade 29 divided into upper and lower parts is fitted onto the outer periphery of the spacer 23. The edge of the hole 30 is located between the intervening body 28 and the washer 25, and the shade 29 is attached to the end of the rotating shaft 14 so as to be rotatable with respect to the rotating shaft 14. A decorative cap 31 made of a flexible material such as rubber is attached to the outer end of the rotating shaft 14 so as to be rotatable relative to the rotating shaft 14. Sade 29
The reason why is rotatably attached to the rotating shaft 14 is that the intervening body 28 provides a frictional force between the washer 24 and the washer 25 while supporting the washer 24 and the washer 25 so that they can rotate idly against external forces. Since the decorative cap 31 has a thread at the end of the rotary shaft 14, it is pushed into the thread and held there simply by friction, so that it can be rotatably mounted. The light source 32 is provided on the end plate 13 of the main body 1 and is attached to the end plate 13 via a socket 33.

When power is applied to the rotary decorative lamp according to this embodiment, the light source 32 lights up, the rotating shaft 14 is rotated by the motor 2, and the shade 29 is thereby rotated. Note that the shade 29 is the intervening body 2
It can rotate smoothly due to the friction force of 8. The light from the light source 32 is emitted to the outside from the star-shaped transparent part of the shade 29, and the star-shaped pattern projected on the wall surface etc. moves gently.

When a lateral impact is applied to the shade 29, the displacement of the idling shaft 14 is restricted by the hole 15 in the end plate 13, so there is almost no risk of damaging the speed reduction mechanism or the like inside the motor 2. Normally, speed reduction mechanisms often use gears made of synthetic resin, so they are easily damaged by impacts, but as mentioned above, they are made less susceptible to impacts, so the risk of damage can be avoided.

Next, even if rotational force is applied to the shade 29,
Since the shade 29 is rotatable with respect to the rotating shaft 14, the rotating shaft 14 can be
Since almost no rotational force acts on the motor 2, the motor 2 is protected. Note that the shade 29 idles while resisting the frictional force of the intervening body 28.

Further, even if the decorative cap 31 is turned by hand, since the decorative cap 31 is rotatable relative to the rotating shaft 14, almost no rotational force is applied to the rotating shaft 14, so the motor 2 is protected. will be accomplished.

Furthermore, holes 15 are formed in the rotating shaft 14, that is, the first joint 18 and the second joint 19.
Flange portion 18a, 1 formed to have an outer diameter larger than the inner diameter of
Since the holes 9a are provided above and below the hole 15, the motor 2 is still protected even if a vertical impact is applied to the shade 29.

Effects of the Invention According to the rotary decorative lamp of the present invention detailed above,
Even if a rotational force is applied to the shade from the outside, the shade will simply rotate idly and almost no rotational force will be applied to the motor's rotating shaft.Therefore, there is almost no risk of damage to the inside of the motor, especially the speed reduction mechanism, and in practical use. Or transportation problems can be definitely solved.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view thereof, and FIG. 3 is an enlarged longitudinal sectional view of the same main part. 1... Main body, 2... Motor, 13... End plate, 14... Rotating shaft, 22... Nut, 23...
Spacer, 24, 25... washer, 27... nut, 28... intervening body, 29... shade, 30...
Hole, 32...Light source.

Claims (1)

[Claims] 1. A main body having a built-in motor and a light source provided on the end surface, and a shade covering the light source, and nuts are screwed onto the ends of the rotating shaft of the motor protruding from the main body at intervals, and Washers spaced apart through cylindrical spacers are provided between each nut, and an intervening body made of a flexible material such as rubber is provided between each washer to apply frictional force to the hole edge of the shade hole. A rotating decorative light that is supported so that it can rotate idly against external forces.