JP2591110Y2 - Spotlight - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] The present invention relates to stage lighting in theaters and TVs.
The present invention relates to a spotlight used for lighting in a studio, and more particularly, to an improvement in a mounting structure of an arm provided outside a lamp body having a built-in optical mechanism.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, an arm mounting base for holding a nut 18 in a guide groove 17 formed on an outer surface of a lamp 16 is shown in FIGS. A portion 19 having a disc spring 21 at the lower part of the arm 20 is rotatably abutted on the outside of such an arm mounting base 19, and a screw rod is provided from the outside of the arm. The arm 20 is fixed to the lamp body 16 by screwing a tightening handle 23 with the fixed 22 to the nut 18 fixed to the arm mount 19 through the disc spring 21 and the arm mount 19. ing.

[0003]

By the way, in the above-mentioned conventional structure, a fastening handle having a threaded rod protruding from the outside of the arm is used to fix the arm.
In this case, the nut into which the screw rod is screwed so as not to make a hole in the lamp body is supported by the arm mount while floating from the outer surface of the lamp body. For this purpose, the arm mounting base is formed by bending a flat plate outward to accommodate the nut to form a space corresponding to the height of the nut. If a hole is made in the lamp body, a structure must be provided to prevent light from leaking out, and the structure of the lamp body becomes complicated,
In addition, there are problems such as an increase in weight.

Therefore, the amount of protrusion of the arm attachment portion on the left and right outer surfaces of the lamp body to the outer surface of the tightening handle is large,
Accordingly, the overall width becomes long, and there is a disadvantage that many spotlights cannot be installed when the spotlights are installed side by side. In addition, there is a problem that it is not refreshed in design due to a large amount of protrusion from the lamp body.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a spotlight having a short overall width and which can be installed in a narrow place. is there.

[0006]

In order to achieve the above-mentioned object, a technical measure taken by the present invention is to fit an arm mounting base into guide grooves formed on the right and left outer surfaces of a lamp body having a built-in optical mechanism. Attached to the arm mount so that it can be moved and adjusted freely, and a screw rod is fixed to the arm mount toward the outside, and the lower portions on both sides of the gate-shaped arm on the outside of the arm mount are connected to the screw rod. It is characterized in that it is fitted and rotatably supported, and a tightening handle is fastened to the screw rod side end.

The above-mentioned arm mounting base is composed of a substrate fitted into the guide groove and a pressing plate arranged outside the guide groove. The two are fastened by screws and loosened by screws. The mounting table is movable in the front-rear direction along the guide grooves. Further, a nut is embedded in the tightening handle so that the nut can be screwed into the screw rod. A disc spring is attached to the lower portion on both sides of the arm as in the conventional structure.

[0008]

According to the above-mentioned means, the screw rods are fixed to the arm mounting base mounted on the guide grooves so as to be movable and adjustable. The arm is fixed by screwing the tightening handle onto the screw rod from outside the arm. Since the screw rod is fixed upright on the arm mounting base, the mounting base may be flat, and is disposed close to the outer surface of the lamp body.

[0009]

In the spotlight of the present invention, a guide groove extending in the front-rear direction is formed on the left and right outer surfaces of a lamp body having a built-in optical mechanism, and an arm mounting base is fitted and engaged with the left and right guide grooves. Attached to the arm mount so that a screw rod is raised and fixed to the outside, and the lower portions on both sides of the gate-shaped arm are fitted to the screw mount on the outer side of the arm mount to rotate. Since it is movably supported and a tightening handle is fastened to the end of the screw rod, the arm mounting base is in the form of a flat plate and is placed close to the outer surface of the lamp body. The position can be made closer to the lamp body side as compared with the conventional structure. Therefore, assuming that the structure of the arm is the same as the conventional one, the amount of protrusion of the lamp body from the left and right outer surfaces is about 2/3 of the conventional product, and the overall width can be reduced.

Therefore, when installing the spotlights, their mounting pitch is shortened, and more spotlights can be installed in the same area than the number of conventional products installed. In addition, since the amount of protrusion of the left and right outer surfaces of the lamp body can be reduced as compared with conventional products, a cleaner appearance can be achieved even in terms of design.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a spotlight according to an embodiment of the present invention; FIG.
Reference numeral 2 denotes a gate-shaped arm. The arm 2 has a guide groove 3 formed on the left and right outer surfaces of the lamp body 1 from the front side to the rear side.
Is mounted so as to be rotatable in the vertical direction via an arm mounting base 4 which is mounted so as to be movable and adjustable in the front-rear direction.

The lamp body 1 is formed in a cylindrical shape using a metal material, similarly to the conventional structure, and houses therein a light bulb, a reflecting mirror, a lens, etc. (not shown) constituting an optical mechanism. A rear cover is attached to the opening on the side so as to be freely opened and closed.

An arm mount 4 attached to the guide groove 3 of the lamp body 1 has a substrate 5 fitted in the guide groove 3 and sliding in the front-rear direction, and a guide groove 3 having substantially the same shape as the substrate 5. A holding plate 6 arranged to face the substrate 5 from the outside;
A screw 8 for fastening a holding plate 6 is fixed to the substrate 5 in an outward direction, and the screw 8 is fixed to the holding plate 6. A hole 9 through which the hole 9 is formed is opened, and an edge of the guide groove 3 of the lamp body 1 is clamped by fastening a nut 10 to a screw 8 that has passed through the hole 9, and the arm mounting base 4 is fixed. Further, the receiving seat 7 fixed to the outer surface of the holding plate 6 integrally projects a flange projecting outward on a circular peripheral edge, and the disc spring fixed to the arm 2 joined to the receiving seat 7 may come off. I try not to.

Further, a screw rod 11 is fixed upright toward the outside at a substantially central position on the outer surface of the substrate 5, and the screw rod 11 projects outward through a hole opened at the center of the holding plate 6. The lower part of both sides of the arm 2 is fitted and the tightening handle 12
To be fastened.

The lower portions on both sides of the gate-shaped arm 2 are formed into a flat plate by press working or the like, and a disc spring 13 is fixed to a surface of the flat plate portion facing the arm mount 4 by a rivet or the like. A hole 14 through which the screw rod 11 penetrates and protrudes is opened at the center, and a tightening handle is attached to the protruding screw rod 11.
12 can be screwed together.

The tightening handle 12 is configured such that a nut 15 is buried and fixed in a center shaft portion of the tightening handle 12 and is screwed with the screw rod 11. Although the receiving seat 7 for receiving the disc spring 13 on the arm 2 side of the arm mounting base 4 is formed separately from the holding plate 6, an annular edge is formed integrally with the holding plate 6, and the receiving seat is omitted. Of course, it may be possible.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a spotlight according to the present invention.

FIG. 2 is an enlarged sectional view taken along the line (2)-(2) of FIG. 1 and omits an optical mechanism inside the lamp body.

FIG. 3 is an enlarged sectional view of an arm attachment portion.

FIG. 4 is an exploded view of an arm mounting portion, with a part cut away.

FIG. 5 is an enlarged sectional view of an arm attachment portion in a conventional spotlight.

FIG. 6 is an exploded view of an arm attachment portion shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Light body 2 ... Arm 3 ... Guide groove 4 ... Arm mounting base 11 ... Screw rod 12 ... Tightening handle

Claims (1)

(57) [Scope of request for utility model registration] A guide groove extending in the front-rear direction is formed on the left and right outer surfaces of a lamp body having a built-in optical mechanism, and an arm mounting base is fitted and engaged with the left and right guide grooves so as to be movable and adjustable. A screw rod is fixed to the arm mounting base so as to face outward, and lower portions on both sides of a gate-shaped arm are rotatably supported by fitting the screw rods to the outside of the arm mounting base. A spotlight with a fastening handle fastened to the end of the screw rod.