JPS5833607Y2 - Lighting shade rotating device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a rotating device for a lighting shade.

In addition to having a freely bendable arm, the lighting stand is equipped with a rotating device between the arm and the lighting shade, so that the lighting shade can be appropriately rotated by the rotating device to illuminate the object to be viewed. There is something I did.

As shown in Fig. 1, the conventional rotating device has a rotating body fitted onto a pipe a forming an arm of a lighting stand, and a screw d is tightened onto the pipe a from a groove C of the rotating body to rotate the rotating body. Preventing it from coming out of the pipe, and further screwing a ring nut (e) onto the rotating body and pressing the cylindrical tightening part f of the rotating body,
This fixes the rotating body to the pipe, and the second
As shown in the figure, the rotating body is configured to be able to rotate on the outer periphery of the pipe a by an angle extending over the range of the groove C, that is, by θ' degrees.

Note that g is a mounting portion to which the lighting shade can be fixed.

By the way, in the conventional rotating device, since the parts are fitted on the outside of the pipe as described above, the outer diameter becomes large, which has the disadvantage of being unsightly in appearance.

In addition, since there are many parts, there is also the disadvantage that the cost increases accordingly.

The present invention aims to improve the above-mentioned drawbacks, provide a rotating device that can be housed inside a pipe, and can reduce the number of parts.

Next, an example of implementation of the present invention will be described with reference to FIGS. 3 to 6.

3 to 5 are diagrams showing an embodiment of the present invention,
FIG. 6 is a diagram showing a lighting stand to which the present invention is applied.

The rotating device of the present invention is composed of a rotating body 1 and a spring 3 that allows the rotating body to be attached to a pipe 2 of a lighting stand.

A cylindrical tightening portion 1 protruding from one side of the flange portion 11 of the rotating body 1
2 has an outer diameter that can be inserted into the pipe 2 as shown in FIG. A stopper 12b is provided in a protruding manner, and a protrusion 12C for locking the spring 3 is provided inside.

As shown in FIGS. 3 and 4, the protrusions are arranged so that, for example, in the axial direction of the cylindrical tightening part 12, parts corresponding to the width of the spring 3 are spaced apart from each other and facing each other. They protrude so as to face each other on the inner periphery.

The mounting part 13 protrudes from the other side of the collar part 11 of the rotating body, and fixes the shade mounting bracket 5 to which the illuminator 4 is attached by inserting a pin or the like into its insertion hole 13a, and rotates together with the illuminator. Allow body 1 to rotate.

The spring 3 has a substantially C-shaped plate shape, and is
It is installed inside the cylindrical tightening part 12 by the protrusion 12C, and its elastic restoring force prevents the slot 12a of the cylindrical tightening part.
are expanded so that the cylindrical tightening portion 12 of the rotating body 1 inserted into the pipe 2 is brought into pressure contact with the inner wall of the pipe 2.

However, the pipe 2 has a cutout groove 21 in a part of its periphery through which the stopper 12b of the rotating body 1 can be inserted to regulate the rotation angle, and the stopper 12b is inserted into the cutout groove.
2b slides so that the rotating body can rotate through a regulated θ angle.

Since the rotating device of the present invention has the above-described configuration, the spring 3 is attached to the inside of the cylindrical tightening portion 12 of the rotating body 1 by the protrusion 12C, and the tightening portion 12 is compressed to reduce the outer diameter. While pressing, insert into the pipe 2 until it abuts against the flange 11.

In this way, the elastic restoring force of the spring 3 works to expand the cylindrical clamping part 12 outward, so that the cylindrical clamping part 12 can be brought into pressure contact with the inner wall of the pipe 2. , In this state, the stopper 1 of the tightening part is removed from the notch groove 21 of the pipe.
2b can be protruded to complete the assembly.

The rotating device of the present invention is used by attaching the mounting portion 13 of the rotating body 1 to the shade mounting bracket 5 to which the illuminator 4 is attached, as shown in FIG.

In this way, the rotating body 1
The illuminator 4 can be rotated within the range in which the stopper 12b can be rotated.

That is, as shown in FIG. 4, the ribs 1 to 12b protruding from the cutout groove 21 of the pipe can move the rotating body which moves simultaneously with the illuminator 4 within the pipe within the range of θ. Also, when the illuminator 4 is turned and stopped, the pipe 2
Since the cylindrical tightening part 12 having a slit therein is pressed against the spring 3, it can be stopped at that angular position.

As described above, the present invention allows the cylindrical tightening part to be easily and securely fitted into the pipe and the rotating body to have the same outer diameter as the pipe, so there is no loss of aesthetic appearance. There is no
Also, compared to the conventional method of loosening the ring nut, changing the angle of the illuminator, and then tightening the ring nut again, the condition can be maintained simply by changing the angle of the illuminator. Since it consists of a rotating body and a spring, it is possible to reduce both the number of parts and the number of assembly steps, which has the effect of reducing costs accordingly.

[Brief explanation of drawings]

Fig. 1 is a half sectional view showing an example of a conventional rotating device, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a sectional view showing an embodiment of the present invention, and Fig. 4 is a sectional view showing an example of a conventional rotating device. BB line sectional view in Figure 3, No. 5
The figure is a view taken along arrow C in FIG. 3, and FIG. 6 is a front view showing a lighting fixture to which the present invention is applied. 1... Rotating body, 11... Flam part, 12...
......Cylindrical tightening part, 12a...Slit,
12b...Stopper, 12C...
Protrusion, 13... Mounting part, 3... Pipe, 21... Notch groove, 3... Spring, 4...
...Lighting device, 5...Shade mounting bracket.

Claims (1)

[Scope of utility model registration request] In a lighting shade rotating device configured such that a rotating body is attached to a pipe of a lighting stand, the rotating body supports the lighting shade, and regulates the rotation angle of the lighting shade, the rotating body has a cylindrical shape that can be inserted into the pipe. It consists of a tightening part and a cap attachment part, and the cylindrical tightening part has a stopper protruding from a part of its outer periphery and a slit in the axial direction, and furthermore, the slit can be enlarged inside the cylindrical tightening part. A spring is attached, and a cutout groove is provided in the circumferential side of the pipe to allow the stopper to be inserted to regulate the rotation angle, and the cylindrical tightening portion of the rotary body is inserted into the pipe, and the spring is inserted into the pipe. The elastic restoring force presses the cylindrical clamping part against the inner surface of the pipe, causing the stopper of the cylindrical clamping part to protrude into the notched groove of the pipe to prevent the rotating body from coming out of the pipe, and also to prevent the rotating body from coming out of the pipe. A rotating device for a lighting shade, characterized in that it is designed to regulate the rotation angle of the lighting shade.