JPH0120741Y2 - - Google Patents

Description

[Detailed explanation of the idea] 〔Technical field〕 This invention relates to lighting equipment.

[Background technology]

Emergency lights, spot lights, downlights, etc. often require highly accurate light distribution.

By the way, in conventional downlights, the fourth
As shown in the figure and FIG.
The reflector plate 4 was attached to the device main body 3 by a pair of bending springs 6 protruding from the lamp socket 5. 7 is a ceiling material, and 8 is a lamp.

However, since the bending spring 6 protrudes to the side of the lamp 8, there is a drawback that the lamp light is blocked. In addition, when the reflector plate 4 is attached to the bending spring 6, the reflector plate 4 may be deformed, the spring 6 may be plastically deformed, and furthermore, due to dimensional variations, etc., the lamp 8
There is a drawback that the position of the reflector 4 relative to the lamp is not maintained at a predetermined position, and as a result, the control angle θ of the lamp light changes. Furthermore, although the frame 1 is held in contact with the surface of the ceiling material 7, its resting position changes up and down due to the unevenness of the surface of the ceiling material 7, and due to changes in the position of the transparent hole 9 in the center of the frame 1. However, the control angle θ of the lamp light changes, and a highly accurate and stable light distribution cannot be obtained.

In order to solve the above problem, as shown in FIG. 3, the frame 1 and the reflector 4 are integrated, and the frame 1 with the reflector 4 attached is fixed to the main body 3 with a tightening spring 2. It is conceivable to adopt a structure in which the reflecting plate 4 is disposed in the socket 5. The applicant has already proposed this point (Utility Application No. 59-024197)
issue).

This will be explained as follows based on FIG. A socket support 10 is provided at the top of the device body 3, and a screw 12 serving as a mounting shaft is loosely fitted into a mounting hole 11 at the bottom of the socket support 10, and the head 1 is attached.
2a, and screw the top surface of the lamp socket 5 to the tip of the screw 12. This lamp socket 5
The guide grooves 13 are formed on both sides, and the guide grooves 13 are formed on both sides.
A guide body 1 having a pair of legs 14 guided by
5 into the lamp socket 5 in a slidable manner,
A hole into which the screw 12 is loosely fitted is formed in the center of the guide body 15. Furthermore, coil spring 1 is attached to screw 12.
6, and its both ends are compressed against the guide body 15 and the rear surface of the lamp socket 5. The frame body 1 has a reflective plate 4 integrally provided in the transparent hole 9 in the center, a pair of tight springs 2 are provided on both sides of the frame body 1, and a pair of tight springs 2 are attached to the receiving bracket 17 attached to the inner surface of the instrument body 3. hook the tip of the A lamp insertion hole 18 through which the lamp 8 passes is formed in the top of the reflection plate 4.

When the frame 1 is pushed up, the top of the reflector 4 comes into contact with the lamp socket 5. When the frame 1 is pushed up further, the coil spring 16 is compressed and the tight spring 2 is released at the position where the frame 1 comes into contact with the surface of the ceiling material 7. It becomes locked by the holding force.

Because of this configuration, there is no lamp light shielding as in the conventional case, and the positional relationship (distance α) between the reflector 4 and the lamp 8 is determined by the lower surface of the lamp socket 5, and is not affected by the unevenness of the surface of the ceiling material 7. So,
The control angle of the lamp light is stabilized with high precision. It also prevents eccentricity and damage to the lamp due to unexpected external forces.

However, in the case of this prior application, as the lamp socket 5 rises, the screw 12 also rises and penetrates into the depths of the socket support 10, which poses a problem when arranging electrical components etc. within the socket support 10. In order to solve this problem, the height of the socket support 10 must be increased, resulting in the problem that the entire lighting fixture becomes larger.

[Purpose of invention]

The purpose of this invention is to provide a lighting fixture that not only has a highly accurate control angle of lamp light, but also can be miniaturized as a whole.

[Disclosure of invention]

The lighting fixture of this invention includes a fixture body, a socket holder fixed within the fixture body, a lamp socket held movably in the holder, a compression spring interposed between the lamp socket and the fixed part, and a rear part. a reflector plate having a lamp insertion hole at its end and whose rear end presses and moves the lamp socket against the compression spring; A frame body with a light-transmitting hole is fixed to the instrument main body via a plurality of locking springs while in contact with a surface to be fixed.

Fixed parts within the device body (e.g. socket support)
The socket holder is fixed to the lamp socket, and the lamp socket is held in such a way that it can move forward and backward and not fall off, so even if the lamp socket moves in and out as the frame and reflector are pushed in, the compression spring will only contract and the lamp socket will not fall off. There is nothing that can get into the fixed parts inside. Therefore, this fixing part (for example, the socket support) does not need to be made unnecessarily high, and the entire lighting fixture can be made smaller.

Of course, the advantages obtained from the prior application are preserved.

Embodiment An embodiment of this invention will be described based on FIGS. 1 and 2. The appliance body 3 is inserted into the embedding hole 7a of the ceiling material 7 and fixed to the ceiling material 7 by the fixture 19 and the collar 20. A socket support 10 is provided at the top of the device body 3, and a socket holder 21 is fixed to the bottom of the socket support 10 with screws 22. The socket holder 21 includes a plurality of guide pieces 24 that are parallel to each other and extend along the moving direction of the lamp socket 5, and have a locking step 23 formed in the middle part.
A substrate 2 formed by bending these guide pieces 24
5. 26 is an insertion hole for the screw 22, and 27 is a female screw hole formed in the lower plate of the socket support 10, into which the screw 22 is screwed.

The lamp socket 5 has a plurality of guide grooves 13 formed along the axial direction on its circumferential surface, and the guide grooves 13 are guided by guide pieces 24 so as to be slidable forward and backward. Reference numeral 28 denotes a board fixed to the upper surface of the lamp socket 5 with screws 29, and the guide piece 2 of the socket holder 21 is attached to this board 28.
Notch-shaped locking portion 3 that locks with the locking step portion 23 of No. 4
0 and a notch 31 into which the lead wire 35 is inserted. 32 is a lead wire insertion portion formed in the lamp socket 5, and 33 is a lead wire insertion hole formed in the socket support 10.

A compression coil spring 34 is interposed between the base plate 25 of the socket holder 21 fixed to the socket support 10 and the base plate 28 fixed to the lamp socket 5, and urges the lamp socket 5 downward.
By locking the locking portion 30 with the locking step portion 23, the lamp socket 5 is prevented from falling off.

The rest is the same as the prior application example (Figure 3), so
Identical parts are given the same reference numerals, and their explanations are omitted.

Operation While aligning the lamp insertion hole 18 with the lamp 8,
The upper surface of the reflector 4 is brought into contact with the lower surface of the socket 5. Subsequently, the locking spring 2 is locked to the receiving fitting 17 of the instrument main body 3.

When the frame body 1 and the reflector plate 4 are further pushed in, the lamp socket 5 rises against the coil spring 34, but at this time, only the coil spring 34 contracts and nothing enters into the socket support body 10. Therefore, the socket support 10 can be made lower than in the prior application.

When the frame 1 is pushed in until it contacts the lower surface of the ceiling material 7, the repulsive force of the coil spring 34 is weaker than the pulling force of the tight spring 2 that pulls up the frame 1.

Since the positional relationship between the socket 5 and the lamp 8 and the reflector 4 is accurately determined by the abutment between the reflector 4 and the lamp 5, the control angle of the lamp light can be determined with high precision.

Even if the frame body 1 moves left and right, or even if the ceiling material 7 has unevenness, the coil spring 34 absorbs the left and right and up and down movements, so there is no fear that the reflector 4 will shift from a predetermined position when installed.

[Effect of idea]

According to this invention, it is possible to accurately position the reflector with respect to the socket, and not only can the control angle of the lamp light be determined with high precision, but also the overall size can be reduced. .

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of this invention during installation, Fig. 2 is an exploded perspective view thereof, Fig. 3 is a sectional view of the prior application example, Fig. 4 is a sectional view of the conventional example, and Fig. 5 is a partially enlarged cross-sectional view. DESCRIPTION OF SYMBOLS 1...Frame body, 2...Kick spring, 3...Appliance body, 4...Reflector plate, 5...Lamp socket, 9...
... Transparent hole, 13... Guide groove, 18... Lamp insertion hole, 21... Socket holder, 23... Locking step, 24... Guide piece, 30... Locking part, 34
...Coil spring (compression spring).

Claims (1)

[Claims for Utility Model Registration] (1) A device main body, a socket holder fixed within the device main body, a lamp socket held in the holder so as to be movable forward and backward, and a compressor interposed between the lamp socket and the fixed portion. a spring, a reflection plate having a lamp insertion hole at its rear end and whose rear end presses and moves the lamp socket against the compression spring; and a peripheral part of the transparent hole is fixed to the open end of the reflection plate. A lighting fixture comprising: a frame with a light-transmitting hole that is fixed to the fixture main body via a plurality of tightening springs while in contact with a surface to which the fixture main body is fixed. (2) The socket holder has a plurality of guide pieces each having a locking step in an intermediate portion and extending in the moving direction of the lamp socket, and the lamp socket has a guide groove of the guide piece and the locking step. The lighting fixture according to claim (1) of the utility model registration claim, which has a locking part that locks the stepped part. (3) The compression spring is configured such that when the frame is attached, the compression spring exerts a force that pushes the frame weaker than the tightening force that pulls the frame into place. Lighting equipment described in item 1).