JPS5925061Y2 - Lifting lighting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an elevating lighting device, and particularly to a structure that reduces the load on the motor when elevating a large illumination lamp body.

As shown in Fig. 1, the conventional general type lifting lighting device has a fitting tube 2 with an oblique tip at the lower end of the lifting device main body 1, and an illumination lamp body is placed below the fitting tube 2. A fitting rod 5 provided on the upper part of an elevating body 4 having a vertical axis 3 is configured to be detachable.

By the way, in the above structure, as the illumination lamp body 3 is raised, the fitting rod 5 is guided along the inclined surface of the fitting tube 2, and the fitting rod 5 rotates and rises to a predetermined position.

If the illumination lamp body 3 is relatively small and only a portion of the lamp body is used, the illumination lamp body 3 rotates according to the rotation of the fitting rod 5, and no extra load is applied to the motor.

However, when the lighting lamp 3 becomes larger or the number of lights increases, the rotation radius of the lighting lamp 3 becomes larger and the resistance increases, so the rotation speed becomes slower than the rising speed of the lighting lamp 3 and the motor becomes larger. The drawback is that it puts a load on the motor and damages it.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevating lighting device that can raise and lower an illumination lamp body with a large rotation radius without placing an extra load on the motor with a relatively simple improvement.

The present invention will be explained below with reference to FIGS. 2 to 4.

In FIG. 2, reference numeral 1 denotes the main body of the lifting device, and a drum 6 for winding the wire is provided inside.

Reference numeral 2 denotes a fitting cylinder provided below the lifting device main body 1, the lower end of which is formed obliquely and also forms a vertically elongated groove.

Reference numeral 4 denotes an elevating body, which has a fitting rod 5 on its upper part.

7 is a fixed plate provided at the lower part of the elevating body 4; 8 is a rotating plate configured to be rotatable about a support shaft 9 provided at the center of the fixed plate 7; 1;
0 is an arm supported on the rotating plate 8, 3 is a plurality of illumination lamps fixed to the tip of the arm 10, and 11 is a spring connecting a lower part of the elevating body 4 and a part of the rotating plate 8. , for example using a coil spring.

12 indicates a wire. Next, the assembly and operation of the elevating lighting device having the above structure will be explained.

First, a rotating plate 8 is rotatably supported on a support shaft 9 of a fixed plate 7 provided at the lower part of an elevating body 4 having a fitting rod 5 on the upper part, and an arm having an illumination lamp body 3 on the rotating plate 8. support 10,
Moreover, both the elevating body 4 and the rotating plate 8 are connected by a spring 11.

Next, the other end of the wire 12 whose one end is supported on the fitting rod 5 is supported on the winding drum 6 through the fitting cylinder 5.

In the lifting lighting device assembled in this way, the lifting body 4
When the fitting rod 5 is raised, the fitting rod 5 is guided along the inclined surface of the fitting cylinder 2, and the fitting rod 5 rises while rotating to a predetermined position.

By the way, in the vertical lighting device of the above structure according to the present invention, the lighting lamp body 3 is large in size or has a plurality of lights, and the rotation radius becomes large, so that the rising speed of the lighting lamp body 3 is constant and the rotation speed is slow. However, the load applied to the motor can be buffered by the action of the spring 11, and damage to the motor can be prevented.

As mentioned above, the present invention has a structure in which a rotating plate having an illumination light body is rotatably provided below the elevating body, and the elevating body and the rotating plate are connected by a spring. Even if the lighting body is large or multiple and the rotation radius becomes large, the advantage of preventing damage to the motor is that no extra load is applied to the motor due to the action of the spring when the lighting body is raised as mentioned above. There is.

[Brief explanation of the drawing]

Fig. 1 is an external view of the main parts of a conventional elevating lighting device, Fig. 2 is an external view of the main parts of the elevating lighting device according to the present invention, Fig. 3 is a side view showing the connection structure of the elevating body and the movable plate, FIG. 4 is a perspective view showing the connection structure between the elevating body and the movable plate. 1... Lifting device main body, 2... Fitting tube,
3...Illumination lamp body, 4...Elevating body, 5.
...Fitting rod, 7...Fixing plate, 8...
...Rotating plate, 10...Arm, 11...
·Spring.

Claims (1)

[Claims for Utility Model Registration] A fitting tube 2 is provided in the lower part of the lifting device main body 1, and a fitting tube 2 is provided in the upper part of the lifting body 4 which supports a large illumination lamp 3. In the structure in which the provided fitting rod 5 is supported in a freely fitting and removable manner, a rotary plate 8 which supports the illumination lamp body 3 having a large rotation radius is rotatably pivoted below the elevating body 4. And the same elevating body 4
and a rotating plate 8 are connected by a spring 11.