JP2005268027A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire simple in structure, high in material yield, and very easy to fit a lamp holder to a reflecting plate. <P>SOLUTION: The luminaire has a lamp L, the reflecting plate 1 installed on the back surface of the lamp L, and the lamp holder 10 being fit to the reflecting plate 1 comprising a base part 11 and spring parts 12a, 12b, an engaging part 2 having an engaging piece 4 formed by cutting up to the lamp L side of the reflecting plate 1 and bent almost in parallel to the top surface of the reflecting plate 1 is installed, an engaging projection part 5 is installed in either one of the engaging piece 4 and a base part 11 of the lamp holder 10, and a locking hole 13 locking in the engaging projection part is installed in the other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lighting fixture, and more particularly to a reflector of a lighting fixture and a lamp holder attached to the reflector.

A conventional lighting fixture of this type has a straight or circular tube lamp, a reflector provided on the back of the lamp, and an attachment spring fixed to the reflector and attaching the lamp to the reflector. Is provided with a fixing piece that intersects with the spring portion at a base end of the spring portion that holds the lamp, and the reflecting plate is opposed to an engaging portion that is curved in a substantially U-shaped cross-section to which the fixing piece is engaged. And an opening is provided between the engaging portions in the vicinity of the engaging portions (see, for example, Patent Document 1).
JP 2000-215727 A (page 2-3, FIG. 1-3)

The mounting spring (lamp holder) of Patent Document 1 is provided with a spring part that holds the lamp and a fixing piece that intersects the spring part in a direction orthogonal to the base part, and a pair of engaging parts that face each other and the reflector plate between them. Since a pair of openings must be provided respectively, the structure is complicated and the manufacture is troublesome. In particular, the lamp holder has a problem that the yield of the material is poor.
Also, when attaching the lamp holder to the reflector, it is necessary to slide after inserting one end of the fixed piece from one opening of the reflector, and insert both ends of the fixed piece into the engaging part. Is extremely troublesome.

  The present invention has been made to solve the above-described problems, and has an object to provide a lighting apparatus that has a simple structure, a high material yield, and an extremely easy attachment of the lamp holder to the reflector. It is.

  The luminaire according to the present invention includes a lamp, a reflector provided on the back of the lamp, and a lamp holder that includes a base portion and a spring portion and is attached to the reflector to hold the lamp, and the lamp of the reflector An engagement portion having an engagement piece which is cut and raised to the side and then bent substantially parallel to the upper surface of the reflecting plate, and an engagement protrusion is provided on one of the engagement piece and the base of the lamp holder. The other is provided with a locking portion for locking to the engaging protrusion.

  According to the present invention, the structure is simple, the yield of the material is good, the attachment of the lamp holder to the reflector is extremely easy, and the workability can be improved.

FIG. 1 is an explanatory view showing a reflector plate and a lamp holder of a lighting fixture according to an embodiment of the present invention.
The lighting device according to the present invention includes a reflector 1 provided on the back side of a straight tube (or curved tube) lamp L, and a lamp holder 10 that is fixed to the reflector 1 and holds the lamp L. .

  As shown in FIG. 2, the reflector 1 is bent up and bent to the upper surface side (the lamp L mounting side) to form the vertical wall 3, and then bent in a longitudinal direction substantially parallel to the upper surface of the reflector 1. The engagement portion 2 is formed to form an engagement piece 4. An engagement protrusion 5 is provided at the substantially central portion of the lower surface of the engagement piece 4 (on the side opposite to the mounting side of the lamp L). Yes. In this case, it is desirable that the free end side (opening side) of the engagement piece 4 of the engagement portion 2 is formed so as to be located on the opposite side of a lamp socket (not shown) provided in the lighting fixture.

  As shown in FIG. 3, the lamp holder 10 is formed by bending a metal piece having elasticity. The lamp holder 10 rises from a substantially flat base 11 and both sides of the base 11 almost vertically, and then moves away from each other. It consists of a pair of spring portions 12a and 12b that are curved in an arc shape with substantially the same shape as the outer shape of the lamp L, and whose upper end portions are bent outward and curled. A locking hole 13 to be formed is provided.

  In addition to the shape of the lamp holder 10 shown in FIG. 4, for example, as shown in FIG. 4A, after bending a metal piece having elasticity, the lamp holder 10 rises almost vertically from both sides of the base 11. Some include a pair of spring portions 12a and 12c which are bent in a square shape in a direction away from each other and the upper end portion is bent outward. Further, as shown in FIG. 4 (b), the synthetic resin is molded, bent up in directions away from each other after rising from both sides of the base 11, and both ends thereof are bent upwards almost vertically again. Then, the rib holding part 14 is formed by projecting a rib almost horizontally on the inner side slightly below the upper end part, or after bending the upper end part inward and downward by bending the sheet metal as described above, Some lamp holders 14 have ribs that are bent horizontally in the direction of approaching each other, and in any case, if the lamp holder has a flat base and rising parts on both sides, it is locked to the base. By providing a hole, it can be used in the present invention.

In the engaging portion 2 of the reflecting plate 1 configured as described above, the gap t formed between the upper surface of the reflecting plate 1 and the lower surface of the engaging piece 4 is the plate thickness t ₁ of the base 11 of the lamp holder 10. The width W of the engagement piece 4 is slightly narrower than the inner width W ₁ of the rising portions of the spring portions 12a and 12b of the lamp holder 10. In other words, the width W ₁ of the rising portions of the spring portions 12 a and 12 b is formed to be slightly larger than the width W of the engaging portion 4.

Further, in the drawing, the engagement protrusion 5 provided on the engagement piece 4 of the engagement portion 2 has a triangular cross section due to an inclined surface gradually descending from the free end side of the engagement piece 4 toward the vertical wall 3. However, the present invention is not limited to this, and may be an appropriate shape such as a three-month shape, a circle shape, or a square shape.
Moreover, although the case where the square locking hole 13 which is a locking part was provided in the base 11 of the lamp holder 10 was shown, the shape of the locking hole 13 is the engagement provided in the engaging part 2 of the reflecting plate 1. The shape may correspond to the shape of the protrusion 5 (can be locked), and may be changed as appropriate, for example, by providing a locking protrusion on the upper surface side of the base 11 by cutting and raising instead of the hole. .

Next, a procedure for attaching the lamp holder 10 to the reflecting plate 1 configured as described above will be described.
First, as shown in FIG. 5 (a), the lamp holder 10 is positioned on the free end side (opening side) of the engaging piece 4 of the engaging portion 2 of the reflecting plate 1, and its base 11 is placed on the reflecting plate 1. Slide in the direction of the arrow along the top surface. And as shown in FIG.5 (b), the base 11 of the lamp holder 10 is inserted between the upper surface of the reflecting plate 1 and the engagement piece 4 from the free end side of the engagement piece 4 of the engagement part 2, Further, the lamp holder 10 is pushed in the direction of the arrow.

  As a result, the base portion 11 abuts against the engagement protrusion 5 of the engagement piece 4 and moves forward while elastically deforming the engagement piece 4 slightly upward. The combined piece 4 returns to its original state, and as shown in FIG. 5 (c), the edge of the locking hole 13 is locked to the vertical wall 3 side of the engaging protrusion 5, and the lamp holder 10 is in a predetermined position. And fixed at that position. In this case, in a state where the locking hole 13 is locked to the engaging protrusion 5, the engaging protrusion 5 or the locking hole 13 is arranged so that the end portion of the base portion 11 comes into contact with the vertical wall 3 of the engaging portion 2. It is desirable to set the position.

In the above description, the case where the present invention is applied to the reflecting plate 1 having an arc-shaped cross section is shown, but the shape of the reflecting plate 1 is not limited to this, and other shapes such as a flat plate shape and a trapezoidal cross section are reflected. The invention can also be carried out on plates.
Moreover, although the engagement protrusion 5 was provided in the engagement piece 4 of the engagement part 2 provided in the reflecting plate 1, and the locking hole 13 which is a locking part was provided in the base 11 of the lamp holder 10, it showed. The engaging piece 4 of the engaging portion 2 may be provided with a locking portion, and the base portion 11 of the lamp holder 10 may be provided with an engaging protrusion.

  According to the present invention, the structure is simple, the yield of the material of the lamp holder 10 is good, and the mounting of the lamp holder 10 to the reflector 1 does not require separate parts such as screws and rivets, No special tool is required, and the base 11 of the lamp holder 10 only needs to be pushed into the engaging portion 2 of the reflector 1, so that it is very simple and the workability can be greatly improved.

  Further, in attaching the lamp holder 10 to the reflector 1, the locking hole 13 is locked to the engaging protrusion 5, and the engaging piece 4 is held by the rising portions provided on both sides of the lamp holder 10, The lamp holder 10 can be securely mounted at a predetermined position without falling off or rotating.

It is explanatory drawing which shows the reflecting plate and lamp holder of the lighting fixture which concern on one embodiment of this invention. It is a perspective view of the engaging part provided in the reflecting plate of FIG. It is a perspective view of the lamp holder of FIG. It is explanatory drawing of the other example of a lamp holder. It is explanatory drawing which shows the attachment procedure of the lamp holder to a reflecting plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Reflecting plate, 2 engaging part, 3 vertical wall, 4 engaging piece, 5 engaging protrusion, 10 lamp holder, 11 base, 12a, 12b spring part, 13 locking hole (locking part).

Claims (3)

A lamp, a reflector provided on the back surface of the lamp, and a lamp holder that includes a base and a spring and is attached to the reflector to hold the lamp;
An engaging portion having an engaging piece which is cut and raised to the lamp side of the reflecting plate and then bent substantially parallel to the upper surface of the reflecting plate is provided, and is engaged with either the engaging piece or the base of the lamp holder. The lighting fixture characterized by providing the protrusion and the latching | locking part latched to this engagement protrusion on the other.   The clearance between the lower surface of the engaging piece of the engaging portion provided on the reflecting plate and the upper surface of the reflecting plate is formed substantially equal to the plate thickness of the base portion of the lamp holder. Lighting fixtures. The distance between the rising portions of the spring portions provided on both sides of the base portion of the lamp holder is formed to be slightly larger than the width of the engaging piece of the engaging portion provided on the reflecting plate. lighting equipment.

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