JP3335531B2 - Spotlight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a spotlight used for stage lighting and the like.

[0002]

2. Description of the Related Art A spotlight of this type has a body in which a lamp is built in by attaching end members to the front and rear of a cylindrical body formed by bending a steel plate. However, since a high wattage lamp is used, a number of heat dissipation holes are formed for heat dissipation, and a light-shielding plate is placed at an interval on the inner surface side of the heat dissipation hole to prevent light leakage from the heat dissipation hole Was. Attempts have also been made to integrally mold the entire cylindrical body constituting the main body with an aluminum extruded material at once.

[0003]

However, it is impossible to extrude the entire cylindrical body at once using an aluminum extruded material unless it has a considerable thickness.
It should be noted that there is a problem to be solved that requires a certain wall thickness and results in a considerable weight. The present invention has been made in view of the above-mentioned problems, and has as its object to provide a spotlight that can achieve weight reduction.

[0004]

To summarize the present invention, a plurality of extruded members divided in the front-rear direction form a substantially cylindrical shape, and end members are attached to the front and back of the extruded members to incorporate a lamp. The end member and the extruded material are
Through the hole of the end member and push it out.
Front-rear splitting integrally formed on the inner surface of the material in the front-rear direction
By screwing into a screwed cylinder with
It is a spotlight .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described. However, these are merely exemplary embodiments adopted based on the present invention, and the present invention is limited to matters unique to only the embodiments. The technical scope of the present invention must be determined based on the matters stated in the claims or matters that are substantially equivalent thereto.

In the illustrated embodiment, a plurality of extruded members 1 divided in the front-rear direction form a substantially cylindrical shape, and end members 2 and 3 are attached to the front and rear of the extruded members 1. Is a spotlight in which the main body 5 incorporating the is configured. And the adjacent extruded materials 1, 1
An overlapping portion 7 is formed between them with a space 6 therebetween. Extruded material 1 is suitably made of aluminum and has a thickness of 1.1.
~ 1.7 mm is preferred.

More specifically, the end member 2 on the front side having the opening 8 and the extruded members 1 are connected to the end member 2.
By passing the screws 9 through the holes 10 of the end member 2 from the side, and screwing into the front side of the front and rear cut-out screwing cylinder 11 integrally formed on the inner surface of the extruded material 1 in the front and rear direction, Attached to each other. Rear end member 3
Are mounted in the same manner by screwing a screw (not shown) through the hole 12 of the end member 3 to the rear surface side of the screwing cylinder 11.

In addition to the extruded members 1, there are provided extruded members 13 located at openings on the lower surface side of the extruded members 1. The extruded members 13 are also preferably made of aluminum, and preferably have a wall thickness of 1.1 to 1.7 mm. In addition, an overlapping portion 7 is formed between adjacent extruded members 13, 13 with a space 6 therebetween. Furthermore, the adjacent extruded materials 1, 1
An overlapping portion 7 is also formed between the portions 3 with a space 6 therebetween.
In addition, it is not necessary to form the overlapping part 7 which separated the space 6 in all between the adjacent extruded materials, and a part between the adjacent extruded materials may be in close contact with each other. End members 14 and 15 are provided before and after the extruded members 13.
, Etc., are screwed into the split screw-in cylinders 17 and attached by the same means as described above. A rotatable hinge 19 is provided between the front surface of the end member 14 and the lower surface of the lens hood 18 attached to the front surface of the end member 2.
Are connected by On the other hand, a latch fitting 20 extending from the rear face of the end member 3 is attached to the rear face of the end member 15, and the latch fitting 20 is latched on the rear face of the end member 3 so that the end member 15 and the end member 3 are joined. I have. When the latch metal 20 is released, the portion composed of the end members 14 and 15 and the extruded members 13... Is opened downward about the hinge 19.

The lamp 4 is connected to a pedestal 22 through a socket 21.
, And a reflecting mirror 23 is also attached to the pedestal 22. The pedestal 22 is attached to a shaft 24 which is attached across the end members 14, 15. The rear end of the shaft 24 projects from the rear surface of the end member 15, and a knob 25 is fixed to the rear end of the shaft 24.
Moves back and forth, and the diameter of the light from the lamp 4 projected onto the object via the lens 27 sandwiched between the lens hood 18 and the end member 2 via the O-ring 26 can be varied. When the latch 4 is released, the portion of the lamp 4 composed of the end members 14 and 15 and the extruded members 13 is opened downward about the hinge 19 together with the pedestal 22, the socket 21, the lamp 4 and the reflecting mirror 23. So
Can be easily replaced. A holding frame 28 such as a color filter is mounted on the front surface of the lens hood 18. Also,
An arm 29 for suspension and holding is provided between both outer surfaces of the main body 5.

According to the present embodiment, since the substantially cylindrical portion of the main body 5 is constituted by a plurality of relatively small extruded materials 1 (or extruded materials 13) formed in a divided manner, the extruded materials are formed at the time of molding. A thin material can be molded, and a significant reduction in weight can be achieved. When the extruded material is aluminum, a material having a thickness of about 1.1 to 1.7 mm can be formed. Also, the end member and the extruded material
Extrude a screw by passing a screw through the hole of the end member from the member side.
Front and rear slits integrally molded on the inner surface of the front and rear
Can be attached to each other by screwing
It is approximately cylindrical with multiple extruded materials formed separately
Configuration is possible. In addition, since an overlapping portion 7 is formed between adjacent extruded members with an appropriate space 6 therebetween, effective heat dissipation and prevention of light leakage can be achieved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a sectional view as viewed from the side.

FIG. 3 is a half sectional view as viewed from the front.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Extruded material 2, 3 End member 4 Lamp 5 Main body 6 Space 7 Overlapping part

Claims (2)

(57) [Claims] 1. A spotlight having a substantially cylindrical shape formed by a plurality of extruded members divided in a front-rear direction, and end members attached to the front and rear of the extruded members to form a main body with a built-in lamp. And push the end member
A material is a screw from the end member side to a hole in the end member.
Through the inner surface of the extruded material
By screwing into a screwing cylinder with a split in the front and rear direction
And spotlights mounted on each other. 2. The spotlight according to claim 1, wherein an overlapping portion is formed between adjacent extruded members with a space therebetween.