JPH06129415A - Luminaire - Google Patents

Abstract

PURPOSE:To fit a reflection plate to an appliance main body firmly by turning a fitting screw in a tightening direction. CONSTITUTION:A fitting screw 71 is rotatably inserted and fitted to a reflection plate 61. An engage-stopping member 41 is provided at an appliance main body through reflection plate metal fittings 31. The engage-stopping member 41 is provided with a pair of pinch-holding piece portions 43 into which the screw portion 72 of the fitting screw 71 is put under pressure at the process of the reflection plate 6 being attached and which mesh sides of the screw portion 72 and pinch-hold it elastically. Accordingly, at the process of the reflection plate 6 being attached, the reflection plate 61 can be temporarily fixed by the fitting screw 71 screw portion 72 being meshed between the pair of pinch-holding piece portions 43 of the engage-stopping member 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture having a reflector plate attached to the main body of the fixture.

[0002]

2. Description of the Related Art Conventionally, as a lighting fixture of this type, for example, as shown in FIG. 12, there is a two-lamp lighting fixture using a straight tube type lamp L.

This lighting fixture comprises a fixture main body 1 having a substantially U-shaped cross section, and socket fittings 2 are attached to both ends of the fixture main body 1, and a lamp socket 3 is attached to each socket fitting 2. And the screw hole 4 is formed.

Further, a reflecting plate 5 having a substantially V-shaped cross section is provided, and socket mounting holes 6 through which the lamp socket 3 is inserted are formed at both ends of the reflecting surface portions 5a on both sides of the reflecting plate 5, and a socket is formed. A mounting hole 8 is formed through which a mounting screw 7 for mounting the reflection plate, which is screwed into the screw hole 4 of the mounting bracket 2, is inserted.

Then, the lighting fixture is installed on the mounting surface such as the ceiling surface, after the fixture main body 1 is mounted on the mounting surface.
The reflection plate 5 is adhered and fitted from below, and the mounting screw 7 is screwed into the screw hole 4 of the socket mounting metal fitting 2 through the mounting hole 8 of the reflection plate 5 while supporting the reflection plate 5, and is fixed by tightening.
The tightening work of the mounting screw 7 is performed at four places. Finally, the lamp L is connected between the lamp sockets 3 at both ends.

[0006]

In the conventional lighting equipment,
To attach the reflector 5 to the instrument body 1, the attachment screw 7 must be tightened while supporting the reflector 5 in the state of being attached to the instrument body 1. In particular, the attachment is performed by one person. In this case, it is necessary to perform the difficult work of supporting with one hand and screwing with the other hand, and in the case of the reflection plate 5 having a substantially V-shaped cross section, it is necessary to perform screwing at four points. There is a problem that the attachment of the reflection plate 5 is troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting fixture in which a reflector can be easily attached to the fixture body.

[0008]

SUMMARY OF THE INVENTION The present invention comprises an instrument body,
A reflector plate attached to the instrument body, a mounting screw rotatably inserted in the reflector plate, and a screw portion of the attachment screw provided on the instrument body in the process of attaching the reflector plate. And a locking member having a pair of clamping pieces that are press-fitted and mesh with both sides of the threaded portion to elastically clamp.

[0009]

In the present invention, when the reflector is attached to the instrument body,
In the process of attaching the reflection plate to the device body, the screw part of the mounting screw inserted and fitted in the reflection plate is press-fitted between the pair of holding piece parts of the locking member provided in the device body, and the holding piece part is attached. Engages and holds both sides of the threaded portion of the mounting screw, and the reflector is temporarily fixed to the instrument body. Then, the reflecting plate is surely attached to the instrument body by further pushing and moving the attaching screw with respect to the locking member or rotating the attaching screw in the tightening direction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 3 and 5, reference numeral 11 denotes an instrument body, which is elongated along a straight tube-shaped lamp L and has a cross section from an upper surface portion 12 and edges 13 on both sides of the upper surface portion 12. A plurality of protrusions 15 are formed in a substantially U-shape and abut on the mounting surface 14 such as a ceiling surface to provide a predetermined gap between the upper surface 12 and the upper surface of the fixture.

A pair of left and right socket mounting brackets 21 are attached to both ends of the lower surface of the instrument body 11.
Each of the socket mounting brackets 21 is formed of a socket mounting piece 23 to which the lamp socket 22 is mounted and a fixture mounting piece 24 in a substantially L-shaped cross section. A hooking piece 25 is formed at the tip of the device mounting piece 24 in a direction substantially opposite to the socket mounting piece 23 at a right angle, and the hooking piece 25 is formed on the upper surface 12 of the device body 11. It is hooked and engaged with the upper surface of the instrument through a hooking hole (not shown). Then, as shown in FIG. 9, in a state before the reflection plate 61, which will be described later, is attached, the lamp socket 22 rotates downward due to the position of the center of gravity of the socket attachment fitting 21 to which the lamp socket 22 is attached.

Reflector mounting brackets 31 are attached to the lower surface of the instrument body 11 near both ends thereof, respectively. The reflector mounting bracket 31 has rising piece portions 33 formed upward from both sides of the horizontal piece portion 32, and each rising piece portion 33 is formed with a mounting piece portion 34. It is fixed to the lower surface of the upper surface 12 of the instrument body 11 by welding or the like. As shown in FIG. 2, the horizontal piece portion 32 has a square fitting hole 35 formed therein.

A locking member 41 is attached to the horizontal piece 32 of the reflection plate mounting member 31 by fitting it into the fitting hole 35. As shown in FIGS. 6 to 8, the locking member 41 is made of a metal spring plate material, and has a lower surface portion 42 and a pair of inwardly-folded nipping members that face each other from both sides of the lower surface portion 42. The piece 43 is integrally formed.

The lower surface portion 42 is a thread portion of a mounting screw 71 described later.
72 can be inserted, and long holes 44 are formed in both ends.
Is formed, and stopper portions 45 are formed so as to project at both end edges.

The pair of sandwiching pieces 43 are formed with a facing width interval and a lateral width, respectively, so that they can be fitted in the fitting hole 35, and a rising piece 46 is formed to rise from the lower surface 42 at a substantially right angle. The inclined piece portion 47 is bent inward from the upper end of the rising piece portion 46 so as to face each other, and the contact piece portions 48 are formed on both sides of the upper end of the inclined piece portion 47. The contact piece portion 48 contacts the contact piece portion 48 of the other sandwiching piece portion 43 to restrict the displacement of the sandwiching piece portion 43 inward.

Further, a meshing portion 49 which meshes with the screw portion 72 of the mounting screw 71 is formed in the central region of the upper end of the inclined piece portion 47 of each holding piece portion 43, and both meshing portions 49 are formed in different steps. There is.

Further, each holding piece portion 43 is formed with a locking piece portion 50 cut and raised with the lower end as a free end, and the tip of this locking piece portion 50 is elastically outward from the rising piece portion 46. Is projected.

Then, in order to attach the locking member 41 to the horizontal piece portion 32 of the reflection plate attachment fitting 31, as shown in FIG. 1, a pair of sandwiching piece portions 43 are placed below the fitting holes 35 of the horizontal piece portion 32. When the stopper portions 45 are joined to the lower surface of the horizontal piece portion 32, the respective locking piece portions 50 come into contact with the edges of the fitting hole 35 and elastically deform inward by inserting the respective locking piece portions 50 from each other. The tip of the piece 50 elastically projects above the fitting hole 35, and the horizontal piece 32 is sandwiched between the stopper 45 and the locking piece 50 and fixedly attached.

The reflection plate 61 is formed in a V-shaped cross section having reflection surface portions 62 on both sides, and end plates 63 having a substantially triangular shape are attached to both end surface portions thereof. Socket mounting holes 64 through which the lamp socket 22 is inserted are formed at both ends of each reflecting surface portion 62. In addition, on the top portion 65 of the both reflecting surface portion 62, the instrument body
Corresponding to the position of each reflector mounting bracket 31 of 11, mount screws 71
Is formed with a recess 66 into which is fitted. In this recess 66,
A horizontal mounting portion 67 is formed by press working, and a through hole 68 through which the screw portion 72 of the mounting screw 71 is inserted is formed in this mounting portion 67.

The mounting screw 71 has a head portion 73 integrally formed at one end of a screw portion 72 for rotational operation. The threaded portion 72 has a tip end side inclined with respect to the axial direction and a head portion.
Wedge-shaped screw thread with the 73 side as a plane substantially perpendicular to the axial direction
74 is formed in a spiral shape, and a flange portion 75 having a substantially triangular cross section is formed at the base end portion.

The mounting screw 71 has a threaded portion 72 inserted from below into a through hole 68 of the recess 66 of the reflection plate 61, and a push nut from the tip side of the threaded portion 72 protruding toward the inner surface of the reflection plate 61.
By press-fitting 81 and fitting the push nut 81 to the lower side of the flange portion 75, the push nut 81 is rotatably retained and retained on the reflection plate 61. The head 73 of the mounting screw 71 is fitted in the recess 66 so as to face the horizontal mounting portion 67 in parallel.

In the push nut 81, a plurality of locking projections 83 projecting in an inclined shape toward the upper surface side are dividedly formed on the inner peripheral portion of the ring portion 82 through slits, and the locking projections 83 of the flange portion 75 are formed. It is locked on the lower side and retained.

Next, the operation of this embodiment will be described.

The fixture body 11 is provided with a lamp socket mounting bracket 21, a reflector mounting bracket 31, and a locking member 41 mounted on the reflector mounting bracket 31, as well as a discharge lamp ballast and a terminal (not shown). A table is attached, and the reflector 61
A mounting screw 71 is attached to the screw with a push nut 81.

In order to mount the lighting fixture on the mounting surface 14 such as the ceiling surface, the fixture body 11 is first mounted on the mounting surface 14.

Then, as shown in FIG. 9, it is attached from below the instrument body 11 by holding the reflection plate 61.

During this attachment process, each lamp socket 22 is fitted into the socket mounting hole 64 of the reflection plate 61, and the socket mounting bracket 21 rotates outward as the reflection plate 61 moves upward,
The lamp socket 22 is fitted with the reflector 61 through the socket mounting hole 64.
Protruding to the lower surface of.

Further, in the attaching process, the screw portion 72 of the mounting screw 71 is inserted into the through hole 44 of the locking member 41, and
It abuts against the pair of sandwiching piece portions 43 and is press-fitted while expanding the space between the sandwiching piece portions 43. Since the through hole 44 is formed in a long hole shape in the longitudinal direction of the reflecting plate 61, it can be inserted even if the reflecting plate 61 is displaced in the longitudinal direction with respect to the instrument body 11. Then, the screw thread 74 of the screw portion 72 moves over while moving over the meshing portion 49 of the sandwiching piece portion 43 while meshing.

Then, as shown in FIG. 10, the reflecting plate 61 is pushed up to a position where the upper edge of the reflecting plate 61 contacts the mounting surface 14.

In this state, the engaging portions 49 of the holding piece portion 43 are engaged with both sides of the screw thread 74 of the screw portion 72, so that the engaging member
The downward movement of the mounting screw 71 with respect to 41 is locked, that is, the reflection plate 61 is temporarily fixed to the instrument body 11 via the mounting screw 71, and even if the hand is removed from the reflection plate 61, the reflection plate 61 Does not fall.

Then, as shown in FIG. 11, by pushing up the mounting screw 71 with a finger, the screw portion 72 is further press-fitted between the pair of holding piece portions 43, and the reflection plate 61 moves upward to move the upper edge portion. Comes into close contact with the mounting surface 14.

Further, by rotating the mounting screw 71 in the tightening direction (the direction of arrow A in FIG. 3), the screw portion 72 is screwed and rotated with respect to the meshing portion 49 of the pair of holding piece portions 43, a reflector
The state where 61 is in close contact with the mounting surface 14 makes it possible to firmly tighten and fix.

On the other hand, when the reflector 61 is removed for cleaning or maintenance of the reflector 61, the mounting screw 71 is rotated in the removing direction (the direction of arrow B in FIG. 3) so that the threaded portion 72 becomes a pair. By rotating in the screw-releasing direction with respect to the meshing portion 49 of the sandwiching piece portion 43, and the screw portion 72 being disengaged from between the pair of sandwiching piece portions 43, the reflection plate 61 is moved downward and from the instrument body 11 It can be removed.

If a wedge-shaped thread is used as the mounting screw 71, it can be easily inserted between the pair of holding pieces 43 and the meshing with the meshing portion 49 is strong, but it is a normal triangular shape. Alternatively, a thread-shaped mounting screw may be used.

The instrument shape is not limited to the reflector shape having a substantially V-shaped cross section, but can be applied to a reflector attachment structure having another shape, and the same effect can be obtained.

[0037]

According to the present invention, when the reflector is attached to the instrument body, the threaded portion of the mounting screw inserted and fitted into the reflector is provided on the instrument body in the process of attaching the reflector to the instrument body. Since it is press-fitted between the pair of holding pieces of the locking member, and the holding pieces engage and hold both sides of the screw portion of the mounting screw, the reflector can be temporarily fixed to the instrument body, and Push the mounting screw further against the locking member to move it,
By rotating the mounting screw in the tightening direction, the reflector can be securely attached to the instrument body, and the reflector can be easily attached.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a perspective view of a part of the above embodiment in a disassembled state.

FIG. 3 is an overall sectional view of the above-described embodiment.

FIG. 4 is a perspective view showing an assembled state of the embodiment.

FIG. 5 is a perspective view of the above embodiment in an exploded state.

FIG. 6 is a sectional view of a locking member of the above embodiment.

FIG. 7 is a bottom view of the locking member of the above embodiment.

FIG. 8 is a side view of a locking member of the above embodiment.

FIG. 9 is a partially cutaway end view for explaining the reflector mounting step of the above embodiment.

FIG. 10 is a cross-sectional view illustrating a reflecting plate attaching step of the above embodiment.

FIG. 11 is a cross-sectional view illustrating a reflecting plate attaching step of the above embodiment.

FIG. 12 is a perspective view of a conventional lighting device in an exploded state.

[Explanation of symbols]

 11 Instrument body 41 Locking member 43 Clamping piece 61 Reflector 71 Mounting screw 72 Screw

Claims (1)

[Claims] 1. An instrument main body, a reflector plate attached to the instrument main body, a mounting screw rotatably inserted into and fitted to the reflector plate, and an attachment screw provided on the instrument main body for covering the reflector plate. A lighting device, comprising: a locking member having a pair of clamping pieces that press-fit the threaded portion of the mounting screw in the mounting process and engage with both sides of the threaded portion to elastically clamp it.