JPH0241759Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a technology for preventing false lighting in traffic signal lights, and in particular relates to a louver for traffic signal lights that can improve the structure of the louver and reduce production costs. It is something.

[Conventional technology]

In commonly used traffic signal lights, when outside light such as sunlight hits the front lens of the signal light directly, the light from the outside that penetrates through the lens is reflected by the reflector and goes out. It is known that a louver can occur between the lens and the bulb to prevent light from entering from outside. Something is used to block it.

[The problem that the idea attempts to solve]

However, this type of louver has a structure in which a large number of fins with a predetermined width are arranged side by side in the surface direction with a certain distance between them, and the upper surface of each fin is painted black and the lower surface is finished with a reflective mirror finish. Therefore, fins each having a surface treated are assembled to a frame to form a louver, or each fin of a press-formed product is painted.

Therefore, in the former case, a large number of assembly steps are required to assemble a large number of fins to the frame, and in the latter case, each fin must be painted to avoid staining the surface of adjacent fins, which requires a large amount of labor. Since this process takes time, there is a problem in that the manufacturing cost increases.

The present invention was devised in view of the above problem, and aims to simplify the manufacturing and assembly of the louver installed between the lens and the light bulb to prevent false lighting of traffic signal lights, thereby reducing the manufacturing cost. The aim is to provide a traffic signal light using a new structure that can be expected to reduce the

[Means to solve the problem]

In order to achieve the above object, the louver for a traffic signal light according to the present invention is a louver that is fixed to the light emitting surface between the lens and the light bulb of the traffic signal light, and is made of a suitable plate such as a stainless steel plate with one side mirror-finished. An annular support part of an appropriate width is formed on the outer periphery of a thick sheet metal material,
Before dividing the inner forming edge of the annular support part into a plurality of sections with a width equal to or wider than the forming width of the fin, and connecting and cutting both ends of each section with the inner forming edge through appropriately sized notches. an edge, a trailing edge that is cut at the same or parallel to the cutting part of the adjacent leading edge to or near the inner component edge, and a cut from both ends of the trailing edge to an end position on the inner component edge side spaced apart from the notch; Each fin is formed by the hammered parts that form both edges, and the non-mirror-finished surface of the sheet metal material is treated with anti-reflection by painting, etc., and then each fin is formed by a non-cutting part between the notch and the inner constituent edge. The gist is that the parts are folded up and supported in parallel at a predetermined angle.

[Effect]

According to the above configuration, the louver for pseudo lighting is connected by a slight uncut portion between the notch formed at both ends of the front edge of each fin and the inner edge of the annular support portion, and Since it is easy to fold up, it is possible to fold it up manually after cutting.

Therefore, with the above configuration, the fin surface is not damaged during the folding process, and a non-reflective black matte coating can be applied before the folding process, making it possible to streamline the painting process and reduce the work time. Efficiency can be improved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a traffic signal light louver according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of the main parts of the louver. As shown in FIG. 5, the louver 1 according to the present invention has an annular supporting portion 2 attached to a lens 13 on the opening surface of a bowl-shaped reflecting mirror 12 having a light bulb mounting socket 14 fixed to the bottom.
The reflector 12 is sandwiched and integrated between the outer peripheral surface of the reflector 12 and the flange of the reflector 12.

As shown in FIGS. 2 and 3, the louver 1 is made by cutting a metal plate such as a suitably thick stainless steel plate into a disk shape, with one side mirror-finished 3 and the other side painted black 4. , an annular support part 2 with an appropriate width
Draw an inner constituent edge 5 that constitutes the inner constituent edge 5.
A plurality of sections 7 are divided and formed to have the same or wider width as the formation width of the fins 6, which will be described later, and the fins 6 are formed by cutting and raising each section 7 respectively.

As shown in FIG. 3, each of the divided sections 7 has a semicircular arc-shaped bending notch 9 protruding inward near both ends of the cut portion of the front edge 8 connecting the inner constituent edges 5. 9 is cut and formed, and the abutting intersection position P of the end edges 11, 11 extending from both ends of the cut portion of the rear edge 10 with the inner constituent edge 5 on the front end side of the cut portion is set at the penetration level L of the notch 9 for bending. Each fin 6 is cut and formed by a punched portion X which is selected adjacent to the cutting portion of the front edge 8 which is approximately equal to , and which is connected to the annular support portion 2 by the inner constituent edge 5 of the intrusion level. After that, when a force is applied with a fingertip to bend each fin 6 in the direction of the three mirror-finished surfaces (in the direction of arrow A), each section 7 is aligned with the abutting intersection point P of the inner constituent edge 5 and the notch 9 for bending. It can be easily bent along the folding line G (indicated by a dashed line) connecting the tops, and by bending each of these at approximately 80 degrees (θ),
The assembly of the louver 1 is completed.

Therefore, as described above, the annular support part 2 is sandwiched between the outer peripheral part of the lens 13 and the flange of the reflector 12 so that the three mirror-finished surfaces of the louver 1 face downward and the four black-painted surfaces face upward. It can be integrated into a traffic signal light.

The louver 1 for traffic signal lights with the above configuration can be bent manually, so it can be painted black 4.
The painted surface will not be damaged even if it is bent after being done. Therefore, by using a polished material on one side of a stainless steel plate as the material for the louver 1, it is possible to apply a black coating 4 for non-reflective finishing to the other side before bending.As a result, there is no need for masking etc. during painting. There is no need for further processing.

[Effect of idea]

Since the traffic signal light louver according to the present invention is configured as described above, the notches formed at both ends of the front edge and the inner edge of the annular support part are slightly By creating a structure in which the fins are connected by a non-cutting part and making it possible to manually fold and fold the fins, it is possible to apply a black non-reflective coating to the edges before folding and folding. Therefore, it is possible to mechanize the painting process and improve work efficiency, which will contribute to lower manufacturing costs, and the practical effects of implementing the present invention will be extremely large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a main part showing one embodiment of a louver for a traffic signal light according to the present invention, Fig. 2 is a cross-sectional view taken from Fig. 1, Fig. 3 is a front view showing the cutout of the louver, and Fig. 4 5 is an enlarged view of the same main part, and FIG. 5 is a side sectional view of the traffic signal light showing the state in which the louver is attached. DESCRIPTION OF SYMBOLS 1... Louver, 2... Annular support part, 3... Mirror finishing, 4... Black painting, 5... Inner component edge, 6...
...Fin, 8... Leading edge, 9... Notsuchi, 10...
Trailing edge, 11... End edge, 12... Reflector, 13...
Lens, 15... Light bulb, G... Folded curved section, X...
Punching section.

Claims (1)

[Claims for Utility Model Registration] It is formed from a single metal plate material with mirror finishing 3 on one side and black coating 4 on the other side, and is equipped with an annular support part 2 and a large number of fins 6, each of which The fins 6 have a front edge 8 defined by a punched portion It is characterized in that it is connected to the inner constituent edge 5 of the annular support part 2 at a folding line G of the edge 8, and is folded at a predetermined angle at the folding line G to form a parallel shape. Louvers for traffic signal lights.