JPH0648669Y2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lighting fixture including a lamp such as a reflector lamp.

[Prior Art] As a lighting fixture, as shown in FIG. 4, a fixture main body 1 is provided with a reflector lamp or the like as a lamp 2, and has a bottomed cylindrical main body 1, and an opening edge of the main fixture 1. A packing 5 to be attached and a shade 3 attached to the outer peripheral surface of the opening of the appliance body 1 with a screw 4 are provided. When the lamp 2 is attached to the appliance body 1 from the front, the inner peripheral edge of the front end portion of the packing 5 becomes the lamp 2. There is one in which the lamp 2 is elastically held by the packing 5 by elastically contacting the peripheral surface thereof.

[Problems to be Solved by the Invention] However, since the packing 5 directly contacts the lamp 2 such as a reflector lamp which becomes hot in the above-described lighting equipment,
The heat of the lamp 2 deteriorates the packing 5 and shortens its life.

The present invention has been made in view of the above points, and an object thereof is to provide a lighting fixture that can reduce deterioration of the packing due to heat of the lamp.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a fixture main body to which a lamp is attached from the front side that is open, and an outer collar around the outer peripheral surface in the center in the front-rear direction. A tubular packing that fits the rear end into the opening of the fixture body and has a front end that makes elastic contact with the outer peripheral surface of the lamp when the lamp is mounted, and a cylindrical tubular packing that covers the outer periphery of the lamp and uses the packing at the rear edge. And a shade that is attached to the front of the instrument body such that the outer brim is sandwiched between the outer collar and the opening edge of the instrument body.

[Operation] The present invention is configured as described above, so that the heat applied to the front end portion that is elastically contacted with the lamp through the outer brim that is sandwiched between the rear edge of the shade and the opening edge of the appliance body and exposed to the outside. In addition to radiating the heat, the heat is also radiated through the shade and the appliance body that come into contact with the outer collar, so that deterioration of the packing due to the heat of the lamp can be reduced.

[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention. As shown in FIG. 2, the lighting device of this embodiment also has a lamp 2 such as a reflector lamp, a bottomed cylindrical device body 1 mounted from the front side where the lamp 2 is open, and an outer periphery of the lamp 2. And a packing 5 for elastically holding the lamp 2 and a substantially cylindrical shade 3 whose front portion is expanded in diameter. Here, the packing 5 of the present embodiment, as shown in FIG.
The outer periphery of the lamp 2 when the lamp 2 is attached to the main body 1 of the instrument is a tubular shape in which the outer collar 5a is provided around the entire center in the front-rear direction of the outer peripheral surface, and the lamp 2 is attached to the inner surface of the front end portion 5e protruding forward from the outer collar 5a. An inner collar 5c is formed that elastically contacts the surface. The outer collar 5a has a plurality of through holes 5b. The opening edge of the instrument body 1 is made thicker toward the front to form a mounting portion 1a for the shade 3 and the packing 5, and a plurality of screw holes corresponding to the insertion holes 5b of the packing 5 are formed in the mounting portion 1a. 1b is perforated. In addition, a bent piece 3a is formed on the inner peripheral edge of the rear opening of the shade 3, and a plurality of through holes 3b are formed in the bent piece 3a in correspondence with the insertion holes 5b.

In this embodiment, the rear end portion 5d of the packing 5 protruding rearward from the outer collar 5a is fitted into the opening of the device body 1 to attach the packing 5 to the opening of the device body 1. At this time, the tubular rear end portion 5d of the packing 5 serves as a guide, and the packing 5 can be easily attached to the instrument body 1. In this state, the bent piece 3a of the shade 3 is brought into contact with the front surface of the outer collar 5a of the packing 5 to dispose the shade 3 on the front side of the packing 5, and the through hole 3b
And the screw 4 is screwed into the screw hole 1b through the insertion hole 5b, and the outer collar 5a is provided between the front end face of the mounting portion 1a of the instrument body 1 and the bent piece 3a of the shade 3 as shown in FIG. The packing 5 and the shade 3 are integrally attached to the instrument body 1 in a sandwiched manner.
Here, the outer peripheral surface of the outer collar 5a of the packing 5 and the outer peripheral surface of the mounting portion 1a are formed in a shape that is continuous with the outer peripheral surface of the shade 3 so as to be beautifully designed. When the lamp 2 is attached to the socket 6 provided in the main body 1, the inner collar 5c having an inner diameter smaller than the outer diameter of the portion of the lamp 2 that elastically contacts makes elastic contact with the outer peripheral surface of the lamp 2 and 2 is elastically held by the packing 5. The rear end of the packing 5 when the lamp 2 is mounted
The 5d is pressed against the inner surface of the instrument body 1 to support the front end portion 5e having the inner collar 5c formed thereon, thereby preventing the front end portion 5e from falling inside and unnecessarily winding the inner collar 5c inside. I am doing it. According to this embodiment, the packing 5
The outer peripheral surface of the outer collar 5a is exposed to the outer surface of the luminaire, and the heat of the inner collar 5c that abuts the lamp 2 can be radiated from this outer peripheral surface and the shade 3 and the fixture body 1 that contact the outer collar 5a. The heat of the inner collar 5c can also be radiated through this, so that the deterioration of the packing 5 due to the heat generated by the lamp 2 can be minimized. If a material having a high thermal conductivity is used as the material of the packing 5, the shade 3 and the device body 1, a better heat dissipation effect of the packing 5 can be expected.
Further, by inserting the outer collar 5a between the bent piece 3a of the shade 3 and the mounting portion 1a of the instrument body 1, it is possible to eliminate a gap formed at the seam between the shade 3 and the instrument body 1. Therefore, there is also an advantage that light leakage from the joint between the shade 3 and the instrument body 1 can be prevented. By the way, in the above-mentioned case, the inner collar 5c was provided around the inner circumference of the front end portion 5e of the packing 5, but as long as the front end portion 5e of the packing 5 is in elastic contact with the outer peripheral surface of the lamp 2, it is not always necessary. It is not necessary to form the inner collar 5c.

[Effects of the Invention] As described above, the present invention is a device body in which a lamp is mounted from the front side of the opening, and a cylindrical outer body with an outer collar around the entire center in the front-rear direction. The packing is attached by fitting the rear end into the opening of the lamp, and the front end elastically contacts the outer peripheral surface of the lamp when the lamp is mounted, and the outer flange of the packing is attached to the outer peripheral surface of the lamp by a tubular shape that covers the outer periphery of the lamp. Since it is equipped with a shade that is attached to the front of the device body so as to be sandwiched between it and the opening edge, the lamp is inserted through the outer collar that is sandwiched between the rear edge of the shade and the opening edge of the device body and exposed to the outside. It is possible to dissipate the heat reaching the front end portion that elastically contacts with, and also dissipate the heat through the shade and the appliance body that are in contact with the outer collar, so that the deterioration of the packing due to the heat of the lamp can be reduced. In addition, when the outer collar of the packing is sandwiched between the rear edge of the shade and the opening edge of the instrument body,
It is possible to eliminate a gap formed at the seam between the shade and the device body, and thus it is possible to prevent light leakage from the seam portion between the shade and the device body.

[Brief description of drawings]

FIG. 1 is a perspective view of a packing according to an embodiment of the present invention, FIG. 2 is a partial sectional view showing a packing installation state of the same, FIG. 3 is an enlarged sectional view of part A of FIG. 2, and FIG. It is the side view which fractured a part of conventional example. 1 is an instrument main body, 2 is a lamp, 3 is a shade, 5 is a packing, 5a is an outer collar, 5d is a rear end portion, and 5e is a front end portion.

Claims (1)

[Scope of utility model registration request] 1. A luminaire including a lamp such as a reflector lamp, wherein a luminaire main body to which the lamp is mounted is provided from an opening front side, and an outer collar is provided around the entire circumference of the outer peripheral surface in the center in the front-rear direction. A cylindrical packing that fits the rear end into the opening of the fixture body and has a front end that elastically contacts the outer peripheral surface of the lamp when the lamp is mounted, and a tubular packing that covers the outer periphery of the lamp and that has the packing at the rear edge. A luminaire, comprising: a shade attached to the front of the luminaire body such that the outer collar is sandwiched between the outer rim and the opening edge of the luminaire body.