JPH0521769Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a lighting device having a reflector.

(B) Prior art This type of lighting equipment having a reflector plate is designed to connect the lamp and the reflector by inserting the lamp into a lamp insertion hole formed in the reflector plate and bringing the peripheral edge of the lamp insertion hole into contact with the lamp socket. The desired light distribution is obtained by fixing the positional relationship.

For example, in the lighting fixture disclosed in Japanese Utility Model Application Publication No. 60-172219, the lamp socket is not fixed to the fixture body, but is held by a compression spring so that it can move forward and backward from the fixture body. The compression spring presses the lamp socket toward the reflector to bring the reflector into contact with the lamp socket. However, in this method, since the lamp socket moves up and down with respect to the appliance body, the wiring cord to the lamp socket moves and bends, and there is a risk that the cord may be damaged or broken.

In addition, in the structure disclosed in the above publication, the reflector and the frame of the reflector in contact with the ceiling surface are integrated, so if the frame (reflector) is tilted due to unevenness of the ceiling surface, for example, There was a risk that the positional relationship between the reflector and the lamp would be misaligned, making it impossible to obtain the desired light distribution.

(c) Problems to be solved by the invention The purpose of the invention is to provide a lighting fixture in which the lamp and the reflector can be accurately positioned and the wiring cord connected to the lamp socket will not be damaged.

(d) Means for Solving the Problems The lighting device of the present invention includes a cylindrical device body with one end open, a lamp socket fixed in the device body, and a lamp insertion hole formed therein. a reflector whose peripheral edge abuts the lamp socket; a frame which is pressed and fixed toward the opening at one end of the appliance main body by a plurality of first springs; and a frame which is provided on the frame and engages with the peripheral edge of the reflector. and a plurality of second springs that press and hold the reflector in the direction of the lamp socket, the second springs having a spring piece whose tip supports the peripheral edge of the reflector, and a spring piece attached to the frame. The main piece is characterized in that the mounting pieces are formed so as to extend in the same direction from the main piece.

(E) Effect According to the above structure, the wiring cord does not move because the lamp socket is fixed, and the reflection plate is held in the direction of the lamp socket by the second spring provided in the frame, so that the lamp socket is not moved. Positioned by the contact surface. In addition, the second spring has a spring piece that supports the reflector and a mounting piece that is attached to the frame body, which are folded back through the main piece, and the spring piece and the mounting piece act as a whole as a spring member. The spring provides a large elastic range of stroke in the vertical direction.

(f) Examples Examples of the present invention shown in the drawings will be described below. Reference numeral 1 denotes a bottomed cylindrical instrument body with a collar 2 formed at one end opening, and a plurality of guide claws 33 for locking a lock spring described later are provided inside the instrument body. This appliance main body 1 is attached to a ceiling 5 with a mounting bracket 4, and the brim 2 is brought into contact with the lower surface of the ceiling 5. 6 is an electric circuit unit attached to the inside of the instrument body 1 via a metal fitting 7;
Reference numeral 8 denotes a lamp socket fixed to the appliance main body 1 via the electric circuit unit, 9 a lamp attached to the lamp socket, 10 a bowl-shaped reflector plate, and a lamp insertion hole in the center thereof into which the lamp 9 is inserted. 11 is formed. Reference numeral 12 denotes a frame body that covers the brim 2 that is in contact with the ceiling 5 surface, and a cylindrical reflector steady rest 13 and a disc member 14 are connected to the inner circumference 1 of both of them.
5 is fixedly configured. A rising portion 16 facing upward is formed on the outer periphery of the disc member 14, and the reflector steady rest 13 has a slightly larger diameter than the outer diameter of the reflector 10, and has a guide claw of the instrument body 1. 3, 3... and presses the frame 12 toward one end opening of the instrument main body 1, that is, upwardly, and fixes it to the instrument main body 1. It is attached by fasteners 18, 18. Furthermore, this reflector plate steady rest 13 has a pair of square holes 19, 19, .
and a reflector presser 21 that prevents the reflector 10 from coming off. Reference numeral 22 designates E-shaped springs as a plurality of second springs that are attached to the frame 12 and press and hold the reflecting plate 10 upward (in the direction of the lamp socket 8). The E-shaped spring 22 includes a main piece 23, spring pieces 24 extending in the same direction from both ends of the main piece, and a mounting piece 25 extending in the same direction from the center of the main piece 23. It consists of a bent piece 26 bent at a substantially right angle from the mounting piece, and a claw hole 27 formed in the bent piece.

The assembly method of this embodiment will be explained below. First, the E-shaped spring 22 has its spring pieces 24, 24.
It is attached from the outside of the reflector steady rest 13 so that the tips thereof protrude inwardly from the square holes 19, 19, and the mounting claws 20 are inserted into the claw holes 27 and then bent and fixed. Next, the reflector 10 is fitted from above the frame 12, and the reflector retainer 21 is
The reflector plate 10 is attached to the frame body 12 by bending it inward. At this time, the peripheral edge of the reflecting plate 10 is supported by the tip of the spring piece 24 of the E-shaped spring 22.

On the other hand, a lamp 9 is attached to the lamp socket 8 in advance, and the appliance body 1 is fixed to the ceiling 5. Then, when the tight springs 17, 17 are locked to the guide claws 3, 3 (see Fig. 2) and the frame body 12 is pushed upward, the frame body 12 is moved by the tight springs 17, 3,
17, which tends to lift the frame 12, causes the upper end of the rising portion 16 to come into contact with the ceiling 5, and is attached to the appliance main body 1 (see FIG. 1). At this time, the reflection plate 10 is
The elasticity that tries to separate the frame 12 and the reflector 10 pushes it toward the lamp socket 8, and the peripheral edge of the lamp insertion hole 11 of the reflector 10 comes into contact with the lower surface of the lamp socket 8.

In this attached state, the elastic force of the E-shaped spring 22 to push down the frame 12 is weaker than the elastic force of the tight spring 17 to hold the frame 12, so the frame 12 does not move downward. It never gets hot. Even if the ceiling 5 is uneven and the frame 12 is slightly tilted with respect to the appliance body 1,
Since the reflector plate 10 is pressed in the direction of the lamp socket 8 by the E-shaped spring 22, the lamp socket 8 and the reflector plate 10 are in contact with each other and are maintained in a normal positional relationship. Since the positional relationship between the lamp socket 8 and the lamp 9 is constant, the lamp socket 8 and the reflector 1
If the positional relationship with 0 is maintained normally, the light distribution characteristics will not change. Furthermore, since the lamp socket 8 is fixed to the appliance main body 1, there is no risk of the wiring cord (not shown) moving and causing damage or breakage.

In this embodiment, since the E-shaped spring 22 is used to press the reflection plate 10, a stroke with a larger elastic range in the vertical direction can be obtained compared to the case where a simple leaf spring is used. A uniform pushing force can be obtained all around the circumference. Therefore,
Even if the width of the frame body 12 and the disc member 14 (indicated by W in FIG. 1) is narrow, a good effect can be obtained with the small E-shaped spring 22 that can be incorporated therein. That is, small E
The shaped spring 22 favorably presses the reflector 10 in the direction of the lamp socket 8, so that the positional relationship between the lamp 9 and the reflector 10 can always be maintained correctly, and the desired light distribution can always be obtained. Furthermore, since the tip of the spring piece 24 is substantially aligned with the end of the inner circumference 15 of the disc member 14, the E-shaped spring 22 is difficult to see from the outside, and the E-shaped spring 22 is attached to the reflector steady rest 13. Since there are no spot weld marks on the frame 12, the appearance can be made beautiful.

(g) Effects of the invention According to the invention, since the opposite plate can be held at a fixed position relative to the lamp socket, the desired light distribution can be easily obtained. Furthermore, since the lamp socket is fixed, there is no risk of damaging the wiring cord. Furthermore, the second spring provides a large elastic stroke in the vertical direction, so even if the width of the frame is narrow, the small second spring incorporated there will effectively press the reflector in the direction of the lamp socket, allowing the lamp to reflect the light. The positional relationship of the plates can always be maintained correctly, and the desired light distribution can always be obtained.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIGS. 1 and 2 are cross-sectional views showing how the reflector and frame are attached; FIG. 3 is a perspective view of the frame; and FIG. It is a perspective view showing a shape spring. 1... Appliance body, 8... Lamp socket, 10
... Reflector plate, 11 ... Lamp insertion hole, 12 ... Frame body, 17 ... Hard spring, 22 ... E-shaped spring.

Claims (1)

[Scope of utility model registration request] A cylindrical appliance body with one end open, a lamp socket fixed within the appliance body, a reflection plate having a lamp insertion hole formed therein and a peripheral edge of the lamp insertion hole abutting the lamp socket, and a plurality of first springs. a frame body that is pressed and fixed toward the opening at one end of the device main body; and a plurality of holes that are provided on the frame body and that lock onto the peripheral edge of the reflector plate and press and hold the reflector plate in the direction of the lamp socket. The second spring has a spring piece whose tip supports the peripheral edge of the reflecting plate, and a mounting piece that is attached to the frame, each extending in the same direction from the main piece. Lighting equipment characterized by: