JPH0711372Y2 - Fixing device for lamp shade in lighting equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lampshade fixing device for a lighting fixture, and more particularly to prevent the glass lampshade from being chipped or cracked and to stably and firmly fix it to the main body of the fixture. It is an improved version.

[0002]

2. Description of the Related Art In conventional downlights and other lighting equipment, in fixing a glass lamp shade fitted in the main body of the equipment, a concave peripheral groove cut out on the barrel surface of the lamp shade is used. , A plurality of screws screwed from the barrel surface of the device body are pressed and locked, or a plurality of leaf spring locking claws fixed to the barrel surface of the device body are pressed and locked. It is customary.

[0003]

However, in the case of a fixing means such as this, since the metal push screw and the locking claw are in direct contact with the glass lamp shade, the lamp shade is chipped or broken. There is a fear of causing other damage, and therefore it is not possible 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 discomfort may be generated.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and has a structure for that purpose, in which a plurality of lamp shade fixing devices are extended in the centripetal direction from the barrel surface of the device body. While installed, the receiving concave circumferential groove of the fixture is formed on the barrel surface of the glass lamp shade fitted into the instrument body, and by locking the fixture to the concave circumferential groove, In a lighting fixture for assembling a lamp shade to the main body of the fixture, a ring packing made of elastic rubber, synthetic resin, or other elastic material is fitted into the concave circumferential groove so that the fixing tool can be received by the packing. It is characterized by what has been set.

[0005]

According to the above construction 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 this ring packing. Since there is no contact with the lampsade, there is no risk of chips, cracks, or other damage to the lampsade, so the push screw as the fixture 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 impact can be effectively absorbed by the ring packing.

Further, since the ring packing is expandable and contractible, the ring packing is stretched so as to enlarge its diameter.
It can be easily fitted into the recessed groove of the lampsade, and when the operator's hand is released, it contracts by itself and fits tightly into the recessed groove of the lampsade, so the pressing force of the fixture is taken up. However, there is no risk of accidental displacement.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific construction of the present invention will be described in detail below with reference to the illustrated embodiments. FIGS. 1 to 3 show the present invention applied to a ceiling-embedded lighting fixture (downlight).
(A) is an overall device body in the shape of a silk hat, and a socket mount (12) is fixedly mounted on a flat top surface (11) thereof by a plurality of tapping screws (13).

Similarly, (14) is a connecting terminal fixedly installed from above on the top surface (11) of the instrument body (A), (15)
Is a wiring hole, and (16) is a plurality of small screws (18) to the socket mount (12) from below via a heat shield (17).
The lamp socket (19) is a lamp (not shown) that is integrated in the socket (16).
It shows a reflector of.

Further, (20) is a plurality of heat-dissipating holes distributed in the barrel surface (21) of the instrument body (A), and (B) is a pair for attaching the instrument body (A) to the ceiling surface (22). Mounting brackets, which are made of leaf spring members bent in a substantially L-shape facing each other, and each of which has a vertical mounting piece (23) on one side,
It is joined to the barrel surface (21) of the instrument body (A) from the inside, and is fixedly integrated with the rivet (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 the body cylinder surface (21).
Is locked in the locking hole (26).

Wing piece (27) forming the other side of the mounting bracket (B)
Is bent and raised at an acute angle from the lower end portion of the attachment piece (23), and also largely protrudes laterally outward through the lead-out hole (28) opening in the barrel surface (21) of the instrument body (A). ing. And this wing piece (27) is the attachment piece (23).
And the ceiling boundary (2
By elastically locking to the embedding port (S) of 2),
The instrument body (A) is locked and held so as not to fall. Reference numeral (29) is a stopper collar bent from the lower end of the barrel surface (21) of the appliance body (A), and covers the embedding opening (S) of the ceiling surface (22).

As described above, the fitting (B) is joined and fixed to the barrel surface (21) of the instrument body (A) from the inside, so that it is joined and fixed from the opposite side. In comparison with the above, the elastic deformation action of the blade piece (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.

(C) is a barrel surface (21) of the instrument body (A)
Is a plurality of lamp shade fixtures that are installed so as to extend in the centripetal direction, and are embodied from a total of three push screws (30) distributed in a radial symmetrical arrangement type in FIGS. That is, the push screw (30) has a screw hole (3) formed on the barrel surface (21) of the instrument body (A).
It is screwed into 1) so as to be able to advance and retreat from the outside, and its tip portion presses a lamp shade described later.

However, the fixture for the lamp shade (C)
As a substitute for the push screw (30) shown in FIGS.
Locking claw (32) made of a leaf spring material as shown in the modified example of FIG.
May be employed, and this may be joined to the barrel surface (21) of the instrument body (A) from the inside so as to project in the centripetal direction, and may be fixed via the rivet (33).

Further, (D) is a glass lamp shade or glove, which has a small-diameter barrel surface (34) to be fitted into the instrument body (A) and also the above-mentioned restraint of the instrument body (A). The collar (29) is provided with a large-diameter decorative surface (35) that covers the collar from below, and the center thereof is opened as a light projecting port (36) of the lamp. However, its floodlight (3
It may not have 6).

(37) is a notch on the barrel surface (34) of the lamp shade (D), preferably in a substantially V-shape that expands outwardly, in a state of a relation corresponding to the fixing tool (C). It is a concave circumferential groove in which the tip of the fixing tool (C) is received and locked, 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, the lamp shade (D) is used.
Since it is a relatively thick product, it is only provided with a concave peripheral groove (37) in a so-called notched state on its barrel surface (34), but its lamp shade (D) is as shown in FIG. In the case of a relatively thin product, the V-shaped concave circumferential groove (37) may of course be formed by bending the barrel surface (34) itself.

Reference numeral (38) is a ring packing molded from elastic rubber, synthetic resin, or other elastic material, and while utilizing its expanding and contracting action, the lamp shade (D) is used.
It is fitted in the concave groove (37).

That is, this is stretched to a slightly expanded state and fitted into the concave circumferential groove (37) of the barrel surface (34) of the ramp shade (D), and the self-contracting force with the operating hand released. Thus, 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, such ring packing (3
8) Fit the barrel surface (34) of the lamp shade (D) fitted in the concave groove (37) in advance into the instrument body (A) from below, and then push the push screw (30). ) Is screwed inward, and its tip is locked in the concave circumferential groove (37) of the ramp shade (D) under the compressed state of the ring packing (38) being pushed in. As a result, the lamp shade (D) is attached to the appliance body (A).

As the lamp shade fixture (C),
When a leaf spring material locking claw (32) is used instead of the push screw (30), the barrel surface (21) of the instrument body (A) is used.
By pushing the shade (D) into the instrument body (A) so that the concave claws (37) of the ramp shade (D) are locked to the locking claw (32) protruding from the Good, then again the locking pawls (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 instrument 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 fixing tool (C) is used.
Since the tip of the lamp comes into direct pressure contact with the ring packing (38), the glass lamp shade (D) will not be affected by vibrations, shocks, or other external forces during transportation as well as during assembly work. There is no fear of chipping or cracking of), and on the contrary, the vibration and shock can be effectively absorbed by the ring packing (38).

The ring packing (38) bears the pressing force of the fixture (C) and elastically deforms by itself, so that the push screw (30) is strongly tightened or engaged. The spring pressure of the pawl (32) can be strengthened,
As a result, the lamp shade (D) can be stably and firmly assembled and locked in 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]

As described above, according to the present invention, a plurality of lamp shade fixing devices (C) are installed in the centering direction from the barrel surface (21) of the device body (A), while
A concave circumferential groove (37) for receiving the fixture (C) is formed on the barrel surface (34) of the glass lamp shade (D) fitted into the instrument body (A), and the concave circumferential groove is formed. (3
In the lighting fixture in which the lamp shade (D) is assembled to the fixture body (A) by locking the fixture (C) to 7), especially rubber or synthetic material that can expand and contract into the concave circumferential groove (37). Since the ring packing (38) made of resin or another elastic material is fitted and the fixing tool (C) can be received by the packing (38), the problems of the prior art mentioned at the beginning are solved. There is an effect that can be easily improved.

That is, in the assembled state of the glass lamp shade (D) to the instrument body (A), its fixture (C).
Does not come into direct contact with the lamp shade (D) itself, but comes into contact with the ring packing (38) fitted in the concave circumferential groove (37) of the lamp shade (D) itself. Even if it is subjected to vibration, shock, or other external force during or during use, the lampsade (D) may be damaged or chipped,
There is no fear of cracking, and 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) is stretched so as to enlarge its diameter. Under the self-contractile force of releasing the operating hand, the concave circumferential groove (3) of the ramp shade (D)
7) There is also an effect that it can be fitted into the inside with good stability, and that the fitting work can be performed lightly by a so-called one-touch type.

Further, since the ring packing (38) can be elastically deformed, the push screw (3) as the fixture (C) is used.
0) can be tightly tightened, and the spring pressure of the locking claw (32) can be set to be strong, and as a result, the pushing screw (30) can be used without worrying about cracking or chipping of the lamp shade (D). The heavy lamp shade (D), which is made of glass, can be firmly assembled to and held in the main body (A) of the appliance by a strong tightening operation.

It can be said that the structure necessary for achieving the purpose is extremely simple and sufficient, and the mass production effect can be maximized.

[Brief description of drawings]

FIG. 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) -Push 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 fixtures (C) are installed from the barrel surface (21) of the instrument body (A) in a state of being projected in the centripetal direction, and the fixture (C) receiving recesses are provided. A circumferential groove (37) is formed on the barrel surface (34) of the glass lamp shade (D) fitted into the instrument body (A), and the fixing tool (C) is inserted into the concave circumferential groove (37). In the lighting fixture in which the lamp shade (D) is assembled to the fixture body (A) by locking the ring, a ring pad made of rubber, synthetic resin, or other elastic material that can expand and contract into the concave circumferential groove (37). Fit the king (38) and fix it with the packing (38).
Fixing device for a lamp shade in a luminaire, characterized in that it is set so as to receive the light.