JPS6320016Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a lighting fixture applied to a floodlight or the like.

[Background technology]

In the conventional projector, as shown in FIGS. 1 and 2, an opening hole 2 for lamp replacement is formed in the side of a substantially box-shaped reflecting plate 1, and a socket portion 3 is removably fastened to the opening hole 2 with a screw 4. 5 is a front glass provided in the opening of the reflecting plate 1, 6 is a socket, and 7 is a lamp. When replacing the lamp of this projector, the socket portion 3 is removed. This is the front glass 5
There is no need to make the front glass 5 a removable structure, or even if there is no front glass 5, the reflector 1 can be used to accommodate the space for attaching the lamp 7.
It has the advantage that there is no need to increase the size.

However, when replacing the lamp by removing the socket part 3, the lamp 7 collides with the edge of the opening hole 2 when passing the lamp 7 through the opening hole 2, as shown in FIG. 7 could be damaged. Further, as shown in FIG. 4, when the lamp 7 is inserted and the screw 4 is tightened, it is necessary to support the socket part 3 by hand, which has the disadvantage that the workability of attaching the socket part 3 is poor. On the contrary,
The socket part is attached to the reflector plate by forming a locking hole on the edge of the opening hole in the reflector plate, providing a hook part in the socket part, and locking the hook part in the locking hole. (For example, Utility Model 58-99708
(No. 49-41251), but there was also a risk that the lamp would be damaged when the lamp was inserted or removed.

[Purpose of invention]

Therefore, the purpose of this invention is to provide a lighting fixture that can prevent lamp damage.

[Disclosure of invention]

This idea consists of a substantially box-shaped reflector plate with an opening hole for lamp replacement, a lamp that is detachably attached to the reflector plate and inserted through the opening hole, and a lamp that is inserted through the opening hole. The socket includes a plurality of abutting guides protruding around the lamp.

According to the configuration of this invention, since a guide is provided around the lamp, the guide comes into contact with the edge of the aperture when the lamp is inserted into or removed from the aperture, thereby preventing the lamp from colliding with the edge of the aperture. Therefore, damage to the lamp can be prevented when replacing the lamp.

An embodiment of this invention is shown in FIGS. 5 to 9. That is, this projector has a reflecting plate 8 and a socket part 9. The reflecting plate 8 has a substantially box shape, and a groove 10 is formed in the opening edge of the reflecting plate 8 to form a front glass 11.
is fitted. Further, an opening hole 12 for lamp replacement is formed on one side of the reflector plate 8, a plurality of hook-shaped hook receiving holes 13 are formed on the peripheral edge of the opening hole 12, and a hole 12 is formed adjacent to each hook receiving hole 13. A screw hole (welding or tapping of a nut) 14 is formed therein. On the other hand, the socket part 9 has a concave part 15 drawn in the center,
A socket 16 is attached to the recess 15, a guide/temporary fitting 17 is attached corresponding to the hook receiving hole 13, a screw insertion hole 18 is formed corresponding to the screw hole 14, and a rubber packing 19 is attached to the periphery. I am wearing it. The guide/temporary fitting 17 is formed by integrally forming a protruding guide 20 and a hook 21 by punching a sheet metal. Also, screw insertion hole 18
A screw 23 with a butterfly-shaped knob 22 is passed through the hole, and a retaining ring 24 prevents the screw from coming off. 25 is a lamp.

The lamp 25 is replaced with the socket part 9 removed from the reflector plate 8. To install the socket part 9, attach the lamp 25 to the socket 16, fit the tip of the lamp 25 into the opening hole 12 of the reflector plate 8 as shown by the arrow in FIG.
Insert it while being guided by the edge of 2. Next, the hook 21 is passed through the insertion part 26 of the hook receiving hole 13 and rotated by a predetermined angle θ to lock the hook 21 in the hook receiving hole 13. At this time, the rubber packing 19 comes into contact with the surface of the reflecting plate 8 due to the dimension opening, and the socket portion 9 becomes temporarily fixed (FIG. 8). In this temporarily fastened state, the tip of the screw 23 is exactly facing the screw hole 14, so by turning the butterfly-shaped knob 22, it is screwed into the screw hole 14, and the socket portion 9 is tightened and fixed to the reflector plate 8. When removing the socket part 9, perform the above procedure in reverse.

With this configuration, when the lamp 25 is inserted into or removed from the reflector 8, the guide 20 guides the lamp 25.
5 is positioned at the center of the opening hole 12, the lamp 25 will not collide with the edge of the opening hole 12, and there is no risk of damage. Further, by temporarily fixing the hook 21 to the hook receiving hole 13, there is no need to support the socket portion 9 by hand while screwing it, as is the case with the conventional method, and thus work efficiency is improved. In this way, lamp replacement by attaching and detaching the socket portion 9 becomes easy.

In addition, in this invention, the fixing means is the screw 23.
However, the present invention is not limited to this, and any other method may be used as long as it is removable and can be securely fixed, such as a so-called bayonet fixing method in which a locking spring and a stopper are provided on the hook portion. In addition, the hook receiving hole 13 and the hook 21
The number is not limited to three, for example, even one can be temporarily fixed by simply setting the dimensions so that they will tightly engage with each other. Further, the hook receiving hole 13 may be a recess instead of a hole, and may be any hook receiving portion that locks rotationally. The shape of the hook shall also be determined in accordance with the hook receiving portion.

[Effect of idea]

As mentioned above, according to the lighting equipment of this invention,
A guide is provided around the lamp, so when the lamp is inserted into or removed from the aperture, the guide comes into contact with the edge of the aperture, so the lamp does not collide with the edge of the aperture. This has the effect of preventing damage to the

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional example, and FIG.
Fig. 5 is an exploded perspective view of one embodiment of this invention, Fig. 6 is a sectional view of the socket part after it has been attached, Fig. 7 is an exploded perspective view showing the hook receiving hole and the hook, Fig. 8 is a sectional view of the socket part in a provisionally fixed state, and Fig. 9 is a sectional view of the socket part in a fixed state. 8...reflector, 9...socket part, 12...opening hole, 20...guide, 25...lamp.

Claims (1)

[Scope of utility model registration request] A substantially box-shaped reflector plate having an aperture for lamp replacement, and a plurality of reflectors that are removably attached to the reflector plate to hold the lamp inserted through the aperture, and that abut against the inner periphery of the aperture. and a socket portion with a guide protruding around the lamp.