JPH0515210U - Fixing device for lamp shade in lighting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to assemble and fix a glass lamp shade to the lighting fixture body securely without fear of chipping or cracking. [Constitution] Glass barrel surface (34) of lamp shade (D)
A ring packing (38) made of an elastic material such as elastic rubber or synthetic resin is fitted into the receiving concave groove (37) of the fixture (C) formed in the above, and by the packing (38). It was set so that it could receive the fixture (C).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lamp shade fixing device in a lighting fixture, and particularly, it is improved so as to prevent the glass lamp shade from being chipped or cracked and to fix and maintain it stably and firmly to the fixture body.

[0002]

[Prior Art]

 In conventional downlights and other lighting fixtures, when fixing the glass lampshade fitted in the fixture body, insert it into the concave circumferential groove cut out on the barrel surface of the lampsade. In this case, a plurality of screws screwed in from the barrel surface of the device are pressed and locked, or a plurality of leaf spring locking claws fixed to the barrel surface of the instrument body are pressed and locked. ..

[0003]

[Problems to be solved by the device]

 However, in the case of such a fixing means, the metal push screw and the locking claw are in direct contact with the glass lamp shade, and there is a concern that the lamp shade may be chipped or cracked, or other damage may occur. Therefore, it is impossible to strongly tighten the push screw or set the spring pressure of the locking claw to be strong. As a result, even if a slight vibration, shock, or other external force is applied during transportation or use, it may be rattled and an unpleasant contact noise may be generated.

[0004]

[Means for Solving the Problems]

 The present invention is intended to solve such a problem, and in view of the structure for that purpose, a plurality of lamp shade fixing devices are installed in a protruding state in the centripetal direction from the barrel surface of the device body, while receiving the fixing devices. A recessed circumferential groove for use is formed on the barrel surface of a glass lamp shade that is fitted into the above-mentioned fixture body, and the fixture is locked in the recessed circumferential groove to assemble the lamp shade into the fixture body. The device is characterized in that a ring packing made of rubber, synthetic resin, or other elastic material is fitted into the concave circumferential groove so that the packing can receive the fixture. is there.

[0005]

[Action]

 According to the above configuration of the present invention, the ring packing made of rubber, synthetic resin, or other elastic material is fitted in the concave circumferential groove of the glass lamp shade, and the fixing tool is directly attached to the ring packing. Since they are in contact with each other, there is no risk of chipping, cracking, or other damage to the lamp shade, and therefore the push screw as the fixing tool is strongly tightened and the spring pressure of the locking claw is also strong. Can be set to, and as a result, a stable and robust fixed state of the lamp shade can be obtained, and vibration and shock can be effectively absorbed by the ring packing.

Further, since the ring packing can be expanded and contracted, the ring packing can be stretched so as to enlarge its diameter and easily fitted into the concave circumferential groove of the lamp shade, and the operation can be performed. When you release your hand, it contracts by itself and fits tightly into the concave groove of the lamp shade, so you can bear the pressing force of the fixture, but there is no risk of accidental displacement.

[0007]

【Example】

 Hereinafter, the specific configuration of the present invention will be described in detail with reference to the illustrated embodiment. FIGS. 1 to 3 show the present invention applied to an Amai embedded luminaire (downlight), and (A) shows the whole. It is a typical silk hat type instrument main body, and a socket mount (12) is internally fixed by a plurality of tapping screws (13) on its flat top surface (11).

Similarly, (14) is a connecting terminal fixedly installed on the top surface (11) of the instrument body (A) from above, (15) is a wiring hole, and (16) is downward to the socket mount (12). The lamp socket (19) is a reflector (not shown) that is planted in the socket (16), which is integrally fastened with a plurality of machine screws (18) through a heat shield (17). Is shown.

Further, (20) is a plurality of heat-dissipating holes distributed in the barrel surface (21) of the appliance body (A), and (B) is a pair for attaching the appliance body (A) to the ceiling surface (22). The fittings are made of leaf springs that are bent in a substantially L-shape facing each other, and each of them has a vertical mounting piece (23) on the inside of the barrel surface (21) of the instrument body (A). In addition to being joined from one side, they are fixedly integrated by a ribet (24). Reference numeral (25) is a steadying piece bent outward from the upper end of the mounting piece (23) at a right angle, and is locked in the locking hole (26) of the barrel surface (21).

The blade piece (27) forming the other side of the mounting bracket (B) is bent and bent at an acute angle from the lower end portion of the mounting piece (23), and again the body surface (A) of the instrument body (A) ( 21) It is largely projected laterally outward through a lead-out hole (28) opening in. Then, the blade piece (27) is elastically deformed with the bending boundary portion with the mounting piece (23) as a fulcrum, and is elastically locked to the embedding opening (S) of the ceiling surface (22), The instrument body (A) is locked so that it cannot be dropped. Reference numeral (29) is a stopper collar bent from the lower end of the barrel surface (21) of the device body (A), and covers the embedding opening (S) of the ceiling surface (22).

As described above, since the mounting bracket (B) is joined and fixed to the barrel surface (21) of the instrument body (A) from the inside, it is joined and fixed from the opposite side. In comparison with the above, the elastic deformation action of the blade (27) with the bending boundary as a fulcrum is less likely to yield and age early, and there is an advantage that the durability of the mounting bracket (B) can be improved.

[0012] (C) is a plurality of lamp shade fixtures that are erected from the barrel surface (21) of the instrument body (A) toward the centripetal direction, and in FIGS. It is embodied from a total of three push screws (30) to be distributed. That is, the pushing screw (30) is screwed into the screw hole (31) formed in the barrel surface (21) of the instrument body (A) so as to be able to advance and retract from the outside, and the tip end portion It is designed to press the lamp shade described later.

However, as the fixture (C) for the lamp shade, instead of the push screw (30) in FIGS. 1 to 3, a locking claw made of a leaf spring material as shown in a modified example of FIG. 4 is used. (32) is adopted, and it is joined to the barrel surface (21) of the instrument body (A) from the inside so that it also projects in the centripetal direction, and is fixed via the rivet (33). good.

Further, (D) is a glass lamp shade or globe, which has a small-diameter barrel surface (34) to be fitted into the instrument body (A) and also the above-mentioned stopper of the instrument body (A). The collar (29) is provided with a large-diameter decorative surface (35) which covers from below, and its center is opened as a light projecting port (36) of the lamp. However, it may not have the light projecting port (36).

Reference numeral (37) is a notch in the barrel surface (34) of the lamp shade (D), which is preferably in a substantially V-shape that expands outwardly, in a state of a corresponding position corresponding to the fixture (C). It is a concave circumferential groove, and the tip portion of the fixture (C) is received and locked therein, so that the lamp shade (D) can be attached to the instrument body (A) so as not to fall. ..

In this respect, in FIGS. 1 to 3, since the lamp shade (D) is a relatively thick product, a concave circumferential groove (37) in a cutout state is provided on the barrel surface (34) thereof. However, when the lamp shade (D) is a relatively thin product as shown in FIG. 4, the V-shaped concave circumferential groove (37) is formed by bending the barrel surface (34) itself. Of course it is good to model.

Reference numeral (38) is a ring packing molded from elastic rubber, synthetic resin, or other elastic material, and while utilizing the expansion and contraction action, the ring packing is inserted into the concave circumferential groove (37) of the lamp shade (D). Be fitted.

That is, this is stretched to a slightly expanded state, fitted into the concave circumferential groove (37) of the barrel surface (34) of the ramp shade (D), and the operator contracts by releasing the operating hand. By force, it is possible to stably and closely fit the groove bottom surface of the concave circumferential groove (37). In that case, it is desirable that the cross-sectional shape of the ring packing (38) is set to be substantially V-shaped corresponding to the concave circumferential groove (37).

Then, the barrel surface (34) of the lamp shade (D) in which such a ring packing (38) is fitted in the concave groove (37) in advance is introduced into the instrument body (A). After fitting from below, the push screw (30) is screwed inward, and the tip of the screw is pushed into the ring packing (38) and compressed. It is locked to (37), which will result in the lamp shade (D) being assembled to the appliance body (A).

When the locking claw (32) of a leaf spring material is used as the lamp shade fixing device (C) instead of the push screw (30), the barrel surface of the appliance body (A) ( 21) Push the shade (D) into the instrument body (A) so that the concave claw (37) of the ramp shade (D) is locked to the locking claw (32) that projects from the side. All that is required is that the locking claws (32) will come into direct pressure contact with the ring packing (38).

Reference numeral (39) in FIGS. 1 and 2 denotes a decorative ring, which is interposed between the stop collar (29) of the device body (A) and the overhanging decorative surface (35) of the lamp shade (D). It is installed.

In any case, when the lamp shade (D) is assembled to the instrument body (A), the tip of the fixture (C) directly comes into pressure contact with the ring packing (38). Of course, there is no tendency for the glass lamp shade (D) to be chipped or broken even when subjected to vibrations, shocks, or other external forces during transportation or use, not to mention during mounting work. The ring packing (38) can effectively absorb the impact and the like.

Further, the ring packing (38) bears the pressing force of the fixture (C) and elastically deforms by itself, so that the pressing screw (30) is strongly tightened or engaged. The spring pressure of the pawl (32) can be strengthened, and as a result, the lamp shade (D) can be stably and firmly assembled and locked to the instrument body (A) without rattling. This is because there is no need to worry about cracking or chipping of the lamp shade (D).

[0024]

[Effect of the device]

 As described above, according to the present invention, a plurality of lamp shade fixing devices (C) are installed in a protruding state in the centripetal direction from the barrel surface (21) of the device body (A), and The receiving concave circumferential groove (37) is formed on the barrel surface (34) of the glass lamp shade (D) to be fitted into the instrument body (A), and is fixed to the concave circumferential groove (37). In a lighting fixture in which the lamp shade (D) is assembled to the fixture body (A) by locking the fixture (C), rubber, synthetic resin, or other elastic material that can expand and contract, particularly into the concave circumferential groove (37). Since the ring packing (38) made of material is fitted so that the fixing tool (C) can be received by the packing (38), the problems of the prior art mentioned at the beginning can be easily improved. effective.

That is, when the glass lamp shade (D) is assembled to the instrument body (A), the fixture (C) does not directly contact the lamp shade (D) itself, and the concave circumferential groove (37 Since it comes into contact with the ring packing (38) fitted to the lamp), the lamp shade can be subjected to vibrations, shocks, and other external forces during transportation and use as well as during the above-mentioned assembly work. There is no concern about scratches, chips, cracks, etc. of (D), but rather, the vibrations and shocks can be effectively absorbed by the packing (38).

Further, since the ring packing (38) is made of elastic rubber, synthetic resin, or other elastic material in the form of a predetermined ring, the ring packing (38) can be stretched to enlarge its diameter. With the self-contracting force generated by releasing the operating hand, it can be fitted in the concave peripheral groove (37) of the ramp shade (D) with good stability, and the fitting work is also a so-called one-touch type. There is also an effect that can be done.

Further, since the ring packing (38) can be elastically deformed, the push screw (30) as the fixture (C) is strongly tightened, and the spring pressure of the locking claw (32) is also increased. It can be set strongly, and as a result, without worrying about cracking or chipping of the lamp shade (D), by strongly tightening the push screw (30), a heavy lamp shade (D) made of glass can be set. It can be securely attached to the device body (A) without any risk.

Even a necessary structure for achieving the purpose is remarkably simple and sufficient, and the mass production effect can be maximized.

[Brief description of drawings]

1 is a cross-sectional view of a half cutaway showing the present invention applied to a ceiling-embedded luminaire.

FIG. 2 is a partial cross-sectional view taken along line 2-2 of FIG.

FIG. 3 is a cross-sectional view of a half cutout showing a lamp shade extracted.

FIG. 4 is a cross-sectional view of a half cutaway showing a modified example corresponding to FIG.

[Explanation of symbols]

 (A) -Apparatus body (B) -Mounting bracket (C) -Fixing tool (D) -Lampsade (21) -Cylinder surface (30) -Press screw (32) -Locking claw (34) -Cylinder tube Surface (35), decorative surface (37), concave groove (38), ring packing

Claims (1)

[Scope of utility model registration request] 1. A plurality of lamp shade fixing devices (C) are installed in a state of being extended in a centripetal direction from a barrel surface (21) of a device body (A), and receiving recesses of the fixing devices (C). A circumferential groove (37) is formed on the barrel surface (34) of the glass lamp shade (D) fitted in the instrument body (A), and the fixing tool (C) is fitted into the concave circumferential groove (37). In the lighting fixture for assembling the lamp shade (D) to the fixture body (A) by locking the ring, a ring pad made of elastic material such as rubber, synthetic resin or other material that can expand and contract into the concave circumferential groove (37). Fit the king (38) and fix it by the packing (38).
Fixing device for a lamp shade in a lighting fixture, characterized in that it is determined so as to receive the light.