JP2856301B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture installed on a support bar of a system ceiling, for example.

[0002]

2. Description of the Related Art Conventionally, in a system ceiling, a plurality of support bars are suspended and supported below a ceiling structure. As shown in FIGS. 10 and 11, the support bar a is formed in a substantially T-shaped cross section having a horizontal portion b and a vertical portion c, and a hollow protruding from both sides of the vertical portion c above the vertical portion c. A rectangular locking projection d is provided. A lighting fixture and a ceiling plate are installed on a pair of support bars a that are adjacent to each other in parallel, and a ceiling surface is configured.

As shown in FIGS. 9 to 11, a conventional lighting fixture installed on a support bar a has a fixture main body 1 attached to frames 1a on both sides and both ends of the frame 1a. It is formed in a frame shape from the socket mounting base 1b,
The lamp socket 2 and the reflector 3 are mounted on the lower surfaces of both socket mounts 1b.

[0004] The instrument body 1 is installed on a support bar a by a plurality of support legs 4 attached to the frames 1a on both sides. The support leg 4 includes a support member 5 attached to the frame 1a, a leg member 6 supported movably in a vertical direction by the support member 5, and a locking member 7 attached to the leg member 6. It has.

The leg member 6 is held in such a manner that a leaf spring 8 attached to the support member 5 selectively engages with upper and lower engaging holes 6a of the leg member 6 so that the height position can be adjusted. The lower part of the leg member 6 is provided with a fitting part 6b that fits on the upper part of the support bar a. The fitting part 6b includes a protruding piece part 6c that fits inside the support bar a, and a fitting part 6b of the support bar a. It has a mounting piece 6d that is mounted on the upper surface and fitted to the outside and has a substantially L-shaped cross section.

The locking member 7 is made of a leaf spring material, and the mounting piece 7a at the upper end is provided with a rivet 9 on one side of the mounting piece 6d of the leg member 6.
And a locking portion 7b which is bent upward from the lower end into a substantially V-shaped cross section so as to be lockable on the lower surface side of the locking projection d of the support bar a.

As shown in FIG. 10, when the instrument is mounted, the instrument main body 1 is located between the pair of support bars a from above.
And the fitting portion 6b of the leg member 6 of each support leg 4 is placed and fitted on the support bar a. At this time, the locking portion 7b of the locking member 7 comes into contact with the support bar a and is elastically deformed inward of the device.
Before the fitting portion 6b is placed on the support bar a, the locking portion 7b is elastically locked to the lower surface side of the locking projection d of the support bar a.

Accordingly, the support bar a is sandwiched between the fitting portion 6b of the leg member 6 and the locking portion 7b of the locking member 7, and the mounting state of the instrument body 1 on the support bar a is stabilized. At the same time, it aims to prevent falling.

[0009]

By the way, there are a plurality of types of support bars a used in the system ceiling. For example, as shown in FIG. 11, as compared with the support bar a of FIG. The vertical length of d may be long.

In such a case, even if a lighting fixture suitable for installation on the support bar a in FIG. 10 is to be installed on the support bar a in FIG. Due to the shortage, the locking portion 7b cannot be locked to the lower surface of the locking projection d of the support bar a.

Therefore, conventionally, a plurality of types of locking members 7 are manufactured corresponding to the types of the locking projections d of the support bar a, and a plurality of types of support legs 4 to which each locking member 7 is attached. It is necessary to prepare.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a single locking member and one type of support leg provided with the locking member are used to connect a plurality of types of support bars. It is an object of the present invention to provide a lighting fixture that can cope with a stop projection and that can share a locking member and a support leg.

[0013]

According to the first aspect of the present invention,
A lighting fixture comprising: a fixture main body; and a plurality of support legs provided on the fixture main body, wherein the lighting fixture supports the fixture main body on a support bar having a locking projection on an upper portion through the support leg. The body is provided with a fitting portion that fits on the upper portion of the support bar, and a locking member that protrudes below the support leg and locks with a locking projection of the support bar is provided. A mounting piece is provided to be attached to the support leg, a plurality of locking pieces having different lengths are provided from the mounting piece, and each locking piece can be locked to a locking projection of the support bar. Is provided.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the locking member is provided with a plurality of locking pieces separated by slits, and the upper end of the slit is mounted. It is provided above the lower end position of the support leg to which the piece is attached.

[0015]

According to the first aspect of the present invention, the instrument body is supported on the support bar by the plurality of support legs provided on the instrument body. In the support leg, the fitting portion is fitted to the upper portion of the support bar, and the locking portion of the locking member is locked to the locking projection of the support bar, and is held by the support bar. Then, even when the vertical heights of the locking projections of the support bar are different, one of the plurality of locking pieces having different lengths is locked to the locking projection of the support bar.

According to the second aspect of the present invention, in addition to the function of the first aspect, the locking member provided on the support leg has an upper end portion of the slit separating the adjacent locking piece portion. Since it is located above the lower edge of the body, each locking piece projecting from the support leg can be displaced independently, and even if one of the locking pieces is displaced, the other locking pieces will be displaced. It is not affected by displacement.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of a lighting fixture according to the present invention will be described below with reference to FIGS.

It is to be noted that the same reference numerals are used for the support bars as in the conventional explanation. That is, as shown in FIG. 4, the support bar a is formed to have a substantially T-shaped cross section having a horizontal portion b and a vertical portion c, and a hollow rectangular shape protruding on both sides of the vertical portion c above the vertical portion c. Are provided. Then, on a pair of support bars a adjacent in parallel,
Lighting fixtures and ceiling panels are installed to form the ceiling surface.

As shown in FIGS. 3 and 4, the luminaire installed on the support bar a is such that the luminaire main body 11 is opposed to each other and a pair of frames 12 are arranged in parallel. Socket mounting base by connecting both ends of 12
13 is attached, and is formed in a square frame shape.

The frame 12 has a substantially U-shaped cross section,
And a lower surface portion 15 having a width shorter than the upper surface portion 14 are formed in parallel, and a side surface portion 16 is formed on the outer surface side of the upper surface portion 14 and the lower surface portion 15.

At one end of the upper surface of the instrument body 11, a case 19 which accommodates electric components such as a ballast 17 and has a terminal block 18 facing the end face is attached.

A lamp socket 20 for connecting a straight tube lamp L and a reflector 21 are mounted on the lower surface of the socket mount 13 of the appliance body 11. The reflector 21 is provided with a reflector 24 having a side plate 23 provided to expand downward from both sides of the upper plate 22, and a reflector 24.
And an end plate 25 for closing the end surface of the end plate.
25 has a connection hole 27 through which the lamp L connected to the lamp socket 20 is inserted.

As shown in FIG. 1, a plurality of support legs 31 for supporting the instrument body 11 with respect to a support bar a are attached to both sides of the instrument body 11. The support leg 31 includes a support member 32, a leaf spring 33, a leg member 34, and a locking member 35.

The support member 32 has a substrate portion 41 parallel to the side surface portion 16 of the frame 12, and a support piece portion 42 joined to the upper surface of the upper surface portion 14 of the frame 12 from the upper edge of the substrate portion 41. A support piece member 43 that is bent and joined to the lower surface portion 15 of the frame 12 and has a substantially L-shaped cross section is fixed to the substrate portion 41 with rivets 44. Further, fitting pieces 45 each having a substantially L-shaped cross section, into which the leg members 34 are slidably fitted in the up-down direction, are formed opposite to each other from both side edges of the substrate section 41 to the outer surface side. . Then, the distal end portion 42a of the support piece portion 42 fits inside the upper surface portion 14, and the distal end portion 43a of the support piece member 43 engages inside the lower surface portion 15 and is screwed to the substrate portion 41. The support member 32 is attached to the frame 12 by the tip of the screw 46 abutting on the side surface 16.

The leaf spring 33 has an upper end secured to the support member 32 by a rivet 44 together with a support piece member 43. The lower end of the leaf spring 33 extends outwardly through an opening (not shown) of the substrate portion 41 of the support member 32. A projecting engagement projection 47 is formed.

The leg member 34 is formed in a vertically long shape, and an edge 52 to be fitted into the fitting piece 45 of the support member 32 is bent from both side edges of the substrate portion 51 to the outer surface side. Engagement holes 53 for selectively engaging the engagement protrusions 47 of the leaf spring 33 are formed near the lower end and near the upper end of the board portion 51, respectively.
The 53 has an escape hole 54 for preventing interference with the head of the rivet 44 or the screw 46.

A fitting portion 55 is formed below the substrate portion 51 so as to be placed and fitted on the support bar a.
Reference numeral 55 denotes a mounting piece 58 having a substantially L-shaped cross section having an upper surface 56 fitted to the upper surface of the support bar a and an outer surface 57 fitted to the outer surface of the support bar a from the center of the lower edge of the substrate 51. Is bent, and a fitting piece 59 that fits into the inner surface of the support bar a from one side position of the mounting piece 58 is formed to protrude in parallel with the substrate 51.

When no light control member such as a louver is installed below the reflector 21, the leg member 34 is fitted with the lower engaging hole 53 in the engaging projection 47 of the leaf spring 33. Then, the downwardly projecting dimension of the leg member 34 is set to be small. On the other hand, when a light control body such as a louver is installed below the reflector 21, the leaf spring 33 is used.
The upper engagement hole 53 is fitted into the engagement projection 47 of the leg member 34.
Is set large so that a space for installing a light control body is provided between the support bar a and the reflector 21.

As shown in FIGS. 1 and 2, the locking member 35 is made of a leaf spring material, and has a mounting piece 62 having a mounting hole 61 on the upper side. 63
The two locking pieces 64 having different lengths separated by two
a and 64b are formed to project from the lower ends of the locking pieces 64a and 64b in a substantially V-shape obliquely upward toward the outer surface to engage with the lower surface of the locking projection d of the support bar a. Locking portions 65a and 65b that can be stopped are formed respectively.

The locking member 35 is provided on the base of the leg member 34.
A mounting piece 62 is fixed to the other side of the mounting piece 58 by a rivet 66. In this fixed state, each locking piece 64
a and 64b project below the lower edge of the substrate portion 51, and the upper end of the slit 63 is located above the lower end of the leg member.

Next, the operation of this embodiment will be described.

First, when the lighting fixture is installed on the support bar a shown in FIG. 4, the fixture main body 11 integrally attached with the reflector 21 and the like is dropped between the pair of support bars a from above.
The support legs 31 on both sides of the instrument body 11 are placed and fitted on the support bar a, and the instrument body 11 is placed on the support bar a via the support legs 31.
I support.

The mounting and fitting of the support leg 31 to the support bar a
The fitting portion 55 of the leg member 34 is fitted from above the support bar a.
At this time, the locking portions of the locking pieces 64a and 64b of the locking member 35
65a and 65b come into contact with the locking projections d of the support bar a and are elastically deformed inward of the device, and before the mounting piece 58 of the fitting portion 55 is mounted on the upper surface of the support bar a, first, , Locking piece with long protruding length
The engagement portion 65b of the support bar 64b elastically engages with and returns to the lower surface side of the engagement protrusion d of the support bar a.
The locking portion 65a of the support bar 64a elastically engages and returns to the lower surface side of the locking projection d of the support bar a.

Accordingly, the support bar a is sandwiched between the fitting portion 55 of the leg member 34 and the locking portion 65a of the locking piece portion 64a having a short protruding length of the locking member 35 to support the instrument body 11. The mounting state on the bar a is stabilized, and the fall can be prevented.

As described above, there are a plurality of types of support bars a used for the system ceiling. For example, as shown in FIG. 5, as compared with the support bar a of FIG. May be long. In such a case, the locking portion 65a of the locking piece 64a having a short protruding length of the locking member 35 cannot be locked to the lower surface of the locking protruding portion d of the support bar a, but the locking portion having a long protruding length can be locked. The locking portion 65b of the piece 64b can be locked to the lower surface of the locking projection d of the support bar a.

Therefore, one locking member 35 and one type of support leg 31 to which the locking member 35 is attached can correspond to the locking projections d of a plurality of types of support bars a. The member 35 and the support leg 31 can be shared.

FIGS. 6 and 7 show examples in which a single locking member 35 can support a plurality of types of support bars a.

The support bar a shown in FIG. 6 is an integral type formed by extrusion molding, and has a locking projection d (d1, d2) formed at the upper end of the vertical portion c and below it. FIG. 6 (a) shows the case where the distance between the locking projections d1 and d2 is the smallest, and the lower locking projection d2 is engaged with the locking piece 34a having a shorter projection length of the locking member 35. The stop portion 35a can be locked, and FIG.
(b) shows a case where the distance between the locking projections d1 and d2 is slightly wide.
The locking portion 35b of the locking piece 34b having a long protruding length of the locking member 35 can be locked to the lower locking protrusion d2, and FIG. 6 (c) shows the position between the locking protrusions d1 and d2. In the case where the interval is the widest, the locking portion 35b of the locking piece 34b having a long protruding length of the locking member 35 can be locked to the lower locking projection d2.

The support bar a shown in FIG. 7 is of a type formed by combining a plurality of plate members or pressing a pipe member so as to have a substantially T-shaped cross section, and a locking projection formed at the upper end of a vertical portion c. It is formed so that the vertical length of d is different. FIG. 7 (a) shows a case where the vertical length of the locking projection d is the shortest.
FIG. 7 (b) shows a case in which the vertical length of the locking projection d is slightly longer, and the locking member 35a is fixed to the locking projection d.
The locking portion 35a of the locking piece portion 34a having a short protruding length of 35 can be locked, and FIG. 7 (c) shows a case where the vertical length of the locking protrusion d is longer. The locking portion 35b of the locking piece 34b having a long protruding length of the locking member 35 can be locked. FIG. 7D shows a case where the vertical length of the locking projection d is the longest. The locking portion 35b of the locking piece 34b having a long protruding length of the locking member 35 can be locked to the portion d.

The locking member 35 attached to the leg member 34
Since the upper end of the slit 63 is located above the lower edge of the leg member 34, the locking pieces 34a,
34b is elastically deformed independently, so that even if one of the locking pieces 34a, 34b is elastically deformed, the other is not affected by the elastic deformation. For example, as shown in FIG. 5, the locking portion 35a of the locking piece portion 34a having a short protruding length is connected to the locking projection d of the support bar a.
Even if the elastic piece is elastically deformed inward due to contact with the device, the locking piece portion 34b having a long protruding length does not deform inwardly of the device, and the locking portion 35b of the locking piece portion 34b becomes a locking protrusion. d.

Next, FIG. 8 shows another embodiment of the locking member 35 of the present invention.
Three locking pieces 64a, 64b, 64c of different lengths, which are separated into three by slits 63 from the lower side, protrude,
Each locking piece 64a, 64b, 64c has a locking portion 65a, 65b, 65c
Is provided. In the case of this embodiment, the three locking pieces 64a, 64b, 64c can cope with more types of locking projections d of the support bar a.

[0042]

According to the first aspect of the present invention, a plurality of locking pieces having different lengths are provided on the locking member. Can be locked to the locking projection of the support bar. Therefore, one locking member and one type of support leg provided with the locking member can correspond to the locking projections of a plurality of types of support bars, and the locking member and the support leg can be shared. Can be achieved.

According to the second aspect of the invention, in addition to the operation of the first aspect, the locking member provided on the support leg has an upper end portion of a slit for separating the adjacent locking piece portion. Since it is located above the lower edge of the supporting leg, each locking piece projecting from the supporting leg can be independently displaced, and even if one of the locking pieces is displaced, the other locking piece is displaced. The portion can be prevented from being affected by the displacement.

[Brief description of the drawings]

FIG. 1 is a perspective view of a support leg showing one embodiment of a lighting fixture of the present invention.

FIG. 2 is a perspective view of a locking member of the embodiment.

FIG. 3 is a perspective view of the lighting fixture of the embodiment.

FIG. 4 is a partial cross-sectional view showing an example of mounting the lighting fixture of the embodiment.

FIG. 5 is a partial cross-sectional view showing another attachment example of the lighting fixture of the embodiment.

FIG. 6 is a partial cross-sectional view showing an example of attachment of the lighting fixture of the embodiment to various support bars.

FIG. 7 is a partial cross-sectional view showing an example of attachment of the lighting fixture of the embodiment to various support bars.

FIG. 8 is a perspective view of a locking member showing another embodiment of the lighting fixture of the present invention.

FIG. 9 is a perspective view of a support leg of a conventional lighting fixture.

FIG. 10 is a partial cross-sectional view showing a mounting example of a conventional lighting fixture.

FIG. 11 is a partial cross-sectional view showing another example of mounting a conventional lighting fixture.

[Explanation of symbols]

 11 Instrument body 31 Support leg 35 Locking member 55 Fitting part 62 Mounting piece 63 Slit 64a, 64b, 64c Locking piece 65a, 65b, 65c Locking part a Support bar d Locking projection

Continuation of the front page (56) References JP-A-4-223003 (JP, A) JP-A-4-329206 (JP, A) JP-A-4-27512 (JP, U) JP-A 62-8514 (JP) , U) Fully open 63-70613 (JP, U) Fully open 63-153418 (JP, U) Fully open 63-153417 (JP, U) Fully open 63-153416 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F21V 21/04 E04B 9/00

Claims (2)

(57) [Claims] 1. An illuminating apparatus comprising: a fixture main body; and a plurality of support legs provided on the fixture main body, and supporting the fixture main body on a support bar having a locking projection on an upper portion through the support leg. In the support leg, a fitting portion fitted to the upper portion of the support bar is provided, and a locking member that protrudes below the support leg and locks to a locking protrusion of the support bar is provided, The locking member includes a mounting piece attached to the support leg, a plurality of locking pieces having different lengths from the mounting piece, and a locking projection of the support bar is provided on each locking piece. A lighting device characterized in that a locking portion capable of locking is provided on the portion. 2. The locking member according to claim 1, wherein a plurality of locking pieces are provided separately from each other by a slit, and an upper end of the slit is provided above a lower end position of a support leg to which the mounting piece is attached. The lighting fixture according to claim 1, wherein