JPS61183804A - Variable shade for luminous body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a variable tube for a light emitter.

BACKGROUND OF THE INVENTION Conventionally, there are many types of shade provided on a light emitting body, but all of them are fixed, and there is no shade that allows the light to be focused and expanded by the light emitting body.

The problem to be solved by the invention is a shade for a light-emitting body that can freely diffuse and condense the illumination of the light-emitting body without reducing the illumination intensity of the light-emitting body.

Means for Solving the Problems The present invention relates to a variable tube for a light emitting body in which a plurality of curved pieces are arranged in series on the outside of the light emitting body as openings of varying sizes.

A plurality of curved pieces connected to the outside of the working light emitter are opened or closed depending on the size of the light condensed by the active light emitter.

Embodiment An embodiment of the present invention will be described with reference to the drawings. A horizontal folding part 2 is provided on the outer circumference of a conical hat 1.
18 rectangular holes 4 with trapezoidal protrusions 3 on the inner edges are provided at equal intervals, the entire folded portion 2 is bent upward from the inside of the hole 4 to provide a rising wall 5, and The upper part is bent outward to provide a horizontal or diagonally horizontal step 6. At this time, the above-mentioned holes 4 are also provided in the wall 5 and the step 6.

Further, in order to reinforce the step 6, an edge 7 which is bent upward is provided on the outer periphery of the step 6.

Separately, both ends of the tip are cut out to form a protrusion 8 at the left and right shoulders 8a and the tip, and at a position behind the protrusion 8 and in front of the left and right shoulders 8a, parallel to the top side of the protrusion 8. A trapezoidal hole 9 having a short side 9a is provided, and the lower part is curved concavely toward the rear, and the lower part is curved concavely when viewed from the rear, and the width increases from the front to the rear. A piece 10 is formed.

Then, insert the protrusion 8 of the curved piece 10 into the hole 4 provided in the folded part 2 from outside between the folded part 2 and the step 6, and then insert the protrusion 3 of the folded part 2 into the bent part from below. 10, the protruding piece 3 protruding from the hole 9 is bent upward, and the hat 1 and the curved piece 10 are locked and engaged. At that time, the song piece 10 installed on the hat 1
When moved upward, the left and right shoulders 8a of the curved piece 10 come into contact with both sides of the wall 5, starting from the joint between the short side 9a of the hole 9 of the curved piece 10 and the top surface of the protruding piece 3. , prevents the curved piece 10 from entering, and the lower surface of the protrusion 8 of the curved piece 10 contacts the upper surface of the folded part 2 of the shade 1, and the rear upper surface of the hole 9 of the curved piece 10 contacts the lower surface of the step 6 of the shade 1. The opening limit of the curved piece 10 is determined respectively.

Also, when the curved piece 10 provided on the hat 1 is hung downward,
This also starts from the joint between the short side 9a of the hole 9 of the curved piece 10 and the top surface of the protruding piece 3, and the protruding piece 3
The front sides of both sides of the cap are held together to prevent the bent piece 10 from falling off from the shade 1, and the upper surface of the protrusion 8 of the bent piece 10 is held in the hole 4 of the step 6 of the shade 1.
The curved piece 10 is fastened to the shade 1 such that the point where it touches the long side of the shade is the closing limit of the curved piece 10. Next, insert the protrusion 8 of another curved piece 10 into the adjacent hole 4, and attach the curved piece 10 to the shade 1 in the same way. 4, the curved piece 10 and one side of the curved piece 10 are always overlapped and connected with the left front tongue or right front tongue.

By arranging the above-mentioned curved pieces 10 in parallel, it is possible to prevent the light from the light emitting body from leaking outside the curved pieces 10, and if force is applied from the outside of the curved piece 10, which is opened, the bending Piece 1
Each piece of 0 presses against each other and closes as if squeezing inward, and if a force is applied to the front of the piece 10 to spread it out, each piece of the piece 10 also transmits the pushing force to each other and opens up. .

In addition, in the drawing, the number of curved pieces 10 provided on the shade 1 is set to 18, but by changing the outer diameter of the shade 1, the size of the curved pieces 10, the degree of curvature of the curved shape, etc. Song piece 10 to be provided
The number of pieces 10 is not limited to 18, and five or more pieces 10 can be installed depending on the necessity such as the size of the shade 1, which is also suitable for the purpose of the present invention.

In addition, as another embodiment, a folded part is not provided at the tip of the lower outer periphery of the hat, and an edge is formed with two walls connected from the above-mentioned horizontal folded part one step above the tip, and the projecting piece of the folded part and the hole are formed. Then, a curved piece also having the above-mentioned shape is locked and fixed, and then the next bent piece is connected to the next hole and protruding piece on one side of the previous bent piece with the left front tongue or the right front tongue. It may also be a variable shade.

Effects of the Invention As described above, in this invention, when a force is applied inward from the outside of the curved piece, each piece of the curved piece presses against each other and closes as if constricting, and is also pushed forward and expanded. If force is applied, each piece of the curved piece transmits the force of pushing each other and opening it. Furthermore, by making the outside of the shade the variable shade described above, there is an effect that light can be easily focused according to the necessity of the illumination body without reducing the illumination intensity of the light emitter.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of the present invention. FIG. 2 is a partially exploded perspective view of an embodiment of the present invention. 1... Cap, 2... Folded part, 3... Protrusion, 4... Hole, 5... Wall, 6... Step, 7... Edge, 8... Protrusion , 8a... Shoulder, 9... Hole, 9a... Short side, 10.
...Song piece. f'-State procedure amendment May 20, 1985

Claims (1)

[Claims] A variable shade for a light-emitting body that has multiple curved pieces connected to the outside of the light-emitting body so that it can be opened and closed.