JPH09166131A - Illuminating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of corrosion and wear to a hinge part even when a high friction force is generated at a hinge part for a fixed body and an opening closing body so that the opening closing body is prevented from rapid downward rotation. SOLUTION: An illumination apparatus is formed in such a manner that an illumination apparatus body with a built-in lamp consists of a fixed body 2 and an opening closing body 3 and the opening closing body 3 is attached to the fixed body 2 through a hinge part 13 around which the opening closing body 3 is rotated with respect to the fixed body 2. A coupling piece 6 is formed of a material having wear resistance higher than that of a material of which the fixed body 2 and the opening closing body 3 are formed and the coupling piece 6 is attached to either the fixed body 2 or the opening closing body 3. A connection piece 7 is formed integrally with the other of the fixed body 2 and the opening closing body 3 and a cover plate 8 formed of a material having wear resistance higher than that of a material of which the fixed body 2 and the opening closing body 3 are formed is non-rotatably attached to the connection piece 7. The hinge part 13 is formed by pivotally mounting the connection piece 7 on the coupling piece 6 in such a state that the coupling piece 6 is forced into pressure contact with the connection piece 7 through the covering plate 8, and this way forms the hinge part 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device used as a floodlight outdoors such as in a stadium.

[0002]

2. Description of the Related Art FIG. 9 shows an example of a luminaire A. The luminaire main body 1 is formed by providing a lamp accommodating portion inside and also disposing a lamp in the lamp accommodating portion.
Further, the front surface of the luminaire main body 1 is formed as a light transmitting surface 11 for transmitting light, and the light generated by the lamp is emitted from the light transmitting surface 11.

The lighting fixture main body 1 is composed of a fixed body 2 and an opening / closing body 3 made of aluminum die casting. The fixed body 2 is formed such that the front surface is formed as the transparent surface 11 and substantially the entire rear surface is opened as an opening 12. The opening / closing body 3 is pivotally attached to the lower edge of the opening 12 of the fixed body 2 by a hinge portion 13.
It is attached rotatably with respect to. Further, the lamp housing portion is formed across the fixed body 2 and the opening / closing body 3. The luminaire A formed in this way is in a normal use state by attaching the opening / closing body 3 to the fixed body 2 so as to close the opening 12 of the fixed body 2, but the lamp housing portion for replacing the lamp or the like. When the maintenance is performed, the opening / closing body 3 is rotated downward to open the lamp housing portion to the outside. By opening the lamp housing portion in this manner, the maintenance can be easily performed. It was done.

FIG. 10A shows an exploded perspective view of the hinge portion 13 of the fixed body 2 and the opening / closing body 3. At the lower edge of the opening 12 of the fixed body 2, a pair of bearings (see FIG. 10A).
(One is not shown in the figure.) 14 is projected by integral molding, and a groove portion 15 having a substantially semi-arcuate shape is recessed on the rear surface of each bearing portion 14, and the groove portion 15 is formed on the outer side surface of the bearing portion 14. It is open. Further, a screw hole 16 is formed inside the groove 15 on the rear surface of each bearing portion 14. A pair of protruding pieces (one of which is not shown in FIG. 10A) 17 is integrally formed on the lower surface of the opening / closing body 3, and a shaft portion 18 having a circular cross section is provided on the inner surface of each protruding piece 17. ing.

Then, the protruding piece 1 coated with a lubricant such as grease
7 is fitted into the groove portion 15 of the bearing portion 14 and covers the peripheral surface of the shaft portion 18 protruding from the groove portion 15 so as to receive the pressing bracket 19 made of a stainless steel (SUS) steel plate having a substantially U-shaped cross section. Arranged on the rear surface of the portion 14, and the holding metal fitting 1
Insert the screw 21 into the through hole 20 provided in
By screwing 1 into the screw hole 16 of the bearing portion 14, the hinge portion 13 as shown in FIG. 10B can be formed.

In the luminaire A having the hinge portion 13 formed as described above, the depth of screwing the screw 21 into the screw hole 16 is increased so that the pressing metal fitting 19 and the shaft portion 18 or the shaft portion 18 and the groove portion are formed. 15 can be strongly contacted to generate a large frictional force between the shaft portion 18 and the pressing fitting 19 or the groove portion 15, and the large frictional force generated in the hinge portion 13 causes the opening / closing body 3 to rapidly rotate downward. By avoiding this, a large force is not applied to the hinge portion 13 and damage to the hinge portion 13 is prevented.

FIG. 11 shows an exploded perspective view of another hinge portion 13. A pair of connecting pieces (one of which is not shown in FIG. 11) 6 is integrally formed on the lower edge of the opening 12 of the fixed body 2 by projection, and each connecting piece 6 has a through hole that opens on both side surfaces. 22 is provided. Further, a pair of connecting pieces (one is not shown in FIG. 11) 7 are integrally formed on the lower surface of the opening / closing body 3, and each connecting piece 7 is provided with an insertion hole 23 opening to both side surfaces. .

Then, the outer surface of the connecting piece 6 is brought into contact with the inner surface of the connecting piece 7, and a bolt 25 fitted with a washer 24 is attached.
The hinge portion 13 can be formed by inserting the nuts 28 and 29 into the through hole 22 and the insertion hole 23 and screwing nuts 28 and 29 to the tip of the bolt 25 via washers 26 and 27. In the luminaire A having the hinge portion 13 thus formed, the outer surface of the connecting piece 6 and the inner surface of the connecting piece 7 are strongly contacted by increasing the screwing depth of the bolt 25 and the nuts 28, 29. A large frictional force can be generated by causing the hinge portion 13 not to suddenly rotate downward by the large frictional force generated in the hinge portion 13 so that a large force is not applied to the hinge portion 13. The hinge portion 13 is prevented from being damaged.

[0009]

However, in the above-described conventional lighting fixture A, the fixed body 2 and the opening / closing body 3, because of the ease of molding,
And the shaft portion 18, the bearing portion 14, and the connecting piece 6 and the connecting piece 7.
Is formed of a molding material such as aluminum die casting, and therefore, the shaft portion 18, the bearing portion 14, and the connecting piece 6 are formed.
The connection piece 7 had low wear resistance. Therefore, in the above-described conventional lighting fixture A, when the opening / closing body 3 is repeatedly rotated to perform maintenance of the lamp housing portion, the shaft portion 1
There is a problem that the coating applied to the bearing 8, the bearing portion 14, and the connecting piece 6 and the connecting piece 7 may be peeled off to corrode the hinge portion 13 or wear the hinge portion 13. Then, due to the corrosion and wear of the hinge portion 13, the strength of the hinge portion 13 is reduced and the hinge portion 13 is easily damaged, and there is a possibility that parts such as the opening / closing body 3 may drop.

The present invention has been made in view of the above points, and even if a large frictional force is generated between the fixed body and the hinge portion of the opening / closing body so that the opening / closing body is not rapidly rotated downward, the hinge portion is formed. It is an object of the present invention to provide a lighting fixture which can prevent corrosion and wear from occurring in the lighting fixture.

[0011]

A lighting fixture A according to claim 1 of the present invention comprises a lighting fixture main body 1 having a lamp 5 built therein with a fixed body 2 and an opening / closing body 3, and the opening / closing body 3 being a fixed body. In the lighting fixture in which the opening / closing body 3 is attached to the fixed body 2 via the hinge portion 13 for rotating with respect to 2, the material having higher wear resistance than the material forming the fixed body 2 and the opening / closing body 3. The connecting piece 6 is attached to one of the fixed body 2 and the opening / closing body 3, the connecting piece 7 is integrally formed on the other side of the fixing body 2 and the opening / closing body 3, and the fixing body 2 and the opening / closing body are formed. In a state in which the contact plate 8 made of a material having higher abrasion resistance than the material forming the connection member 3 is non-rotatably attached to the connecting piece 7 and the connecting piece 7 is pressed against the connecting piece 6 via the contact plate 8. The hinge portion 1 is formed by pivotally connecting the connecting piece 7 to the connecting piece 6.
3 is formed.

A luminaire A according to claim 2 of the present invention.
In addition to the structure of claim 1, the fixed body 2 and the opening / closing body 3 are
Aluminum die-casting is used as the material for forming the above, and a stainless steel plate is used as the material having higher wear resistance than the material for forming the fixed body 2 and the opening / closing body 3. Further, in addition to the configuration of claim 1 or 2, the lighting fixture A according to claim 3 of the present invention presses the connecting piece 6 and the backing plate 8 with a fastener 9 and applies an elastic force in the press contacting direction. The body 10 and the backing plate 8
It is characterized in that it is provided on the tightening tool 9 so as to be in contact with.

[0013]

Embodiments of the present invention will be described below. The luminaire A of the present invention has an appearance similar to that of the conventional example shown in FIG. 9, and as shown in FIGS. 2A and 2B, the luminaire main body 1 is composed of a fixed body 2 and an opening / closing body 3. Has been done. The fixed body 2 is formed by using aluminum die casting which is a molding material, and its surface is coated for corrosion prevention. Further, the fixed body 2 is a cylindrical body having a larger diameter toward the front side, the front surface and the rear surface thereof are opened, and the inner surface thereof is formed as a reflecting surface for reflecting light.

A transparent glass plate 30 is attached to the front opening 2a of the fixed body 2, and a circular mounting frame 35 is attached to the front edge of the fixed body 2 with screws 31.
The peripheral edge portion of the glass plate 30 is sandwiched and fixed by and the opening edge portion on the front surface of the fixed body 2. In addition, an auxiliary reflecting plate 32 for controlling the light distribution of the light generated by the lamp 5 is provided inside the fixed body 2. Further, locking pieces 33 are formed on both sides of the upper surface of the fixed body 2 by bending the edge portion of the opening 2b on the rear surface of the fixed body 2 upward, and on the lower surface of the fixed body 2, the connecting pieces 6 are rearward. It is provided so as to project.

The opening / closing body 3 is made of aluminum die casting which is a molding material, and its surface is coated for corrosion prevention. On the front surface of the opening / closing body 3, a reflecting plate 34 that is convexly curved rearward is attached. A lamp 5 formed of a discharge lamp or the like is arranged in front of the reflecting plate 34, and the lamp 5 has an end fixed to a supporting portion 36 provided at a side end of the front surface of the reflecting plate 34. It is attached to the opening / closing body 3. Further, projecting portions 37 are provided on both sides of the upper surface of the opening / closing body 3 and the projecting portion 3 is provided.
A rear end of a coupling member 38 having a substantially inverted L-shaped cross section is pivotally attached to the front surface of the connector 7, and the coupling member 38 is attached to the protruding portion 37 so as to be vertically rotatable. An engagement piece 39 is formed at the front end of the coupling fitting 38 so as to project rearward. Further, the handle portion 4 is provided on the upper surface of the opening / closing body 3 behind the protruding portion 37.
0 is provided, and a connection box 41 is provided on the lower surface of the opening / closing body 3.

The connection box 41 is provided with two inlets 42. One inlet 42 has an electric wire connected to a ballast, and the other inlet 42 has an electric wire connected to a relay. It is inserted. The electric wire connected to the ballast is connected to the relay electric wire 43 inside the connection box 41, and the relay electric wire 43 is attached to the crimp terminal 44 via the igniter inside the opening / closing body 3. The crimp terminal 44 is the lamp 5
Bolt and nut 4 to the socket where the lead wire of
5 is connected. The electric wire connected to the relay is connected to the interlock switch 46 inside the connection box 41. Further, a connecting piece 7 is provided on the lower surface of the opening / closing body 3 so as to project forward, and a hinge portion 13 is formed by pivotally connecting the connecting piece 6 of the fixed body 2 and the connecting piece 7 of the opening / closing body 3. The lighting fixture main body 1 can be formed by rotatably attaching the opening / closing body 3 to the fixed body 2 via the hinge portion 13.

The lighting fixture body 1 has a substantially U-shaped mounting bracket 6
0 is attached. The mounting bracket 60 is for mounting the lighting fixture A on a lighting stand or the like.
Each of the tips is pivotally attached to both sides of the opening / closing body 3. By rotating the lighting fixture body 1 up and down with respect to the mounting bracket 60, the direction of light irradiation can be changed. In addition, 90 is a mounting disc for mounting the mounting bracket 60 to a lighting stand or the like, and 91 is the mounting bracket 6 for mounting the lighting fixture body 1.
A disk for holding the disk at a constant angle with respect to 0, and 92 is a handle for controlling the rotation of the disk 91.

FIG. 1A shows an exploded perspective view of a part of the hinge portion 13. Reference numeral 65 denotes a connecting metal fitting that is bent and formed of a stainless steel plate having higher wear resistance than the aluminum die casting, and is a protrusion 49 provided on the lower surface of the fixed body 2.
Is formed by providing connecting pieces 6 projecting downward at both ends of a mounting plate 47 attached to the lower surface of the mounting plate 47 with screws 50. The rear portion of the connecting piece 6 serves as the connecting portion 6a and the opening 2 on the rear surface of the fixed body 2.
The connecting piece 6a is projected rearward from the b, and the connecting portion 6a is provided with through holes 48 that open to both side surfaces.
The rear end is formed in a substantially semi-circular shape.

The connecting piece 7 is made of aluminum die cast which is integrally molded when the opening / closing body 3 is formed.
Are integrally connected to the front surfaces of a pair of coupling portions 51 projecting from the lower surface of each of them (note that one connecting piece 7 is not shown in FIG. 1A). Further, the thickness dimension of the connecting piece 7 is formed smaller than the thickness dimension of the connecting portion 51, and a step portion 52 is formed in the connecting portion between the connecting piece 7 and the connecting portion 51. Further, the connecting piece 7 is formed with through holes 53 opening to both side surfaces, and the front surface of the connecting piece 7 has a semi-arcuate shape.

Reference numeral 8 is a backing plate made of a stainless steel plate, and the two backing plates 8 are integrated by connecting the upper ends of the two backing plates 8 with a coupling piece 54. Further, insertion holes 55 are formed on both side surfaces of each contact plate 8, and the front end of each contact plate 8 is formed in a substantially semi-circular shape. FIG.
In (c), a bolt 70 and a nut (double nut) 57,
The fastener 9 formed at 58 is shown. The bolt 70 is a stepped bolt and has a cylindrical shaft portion 9
A threaded portion 9b is continuously formed at the end of a. 10
Is a biasing member formed by a disc spring washer, and is shown in FIG.
As shown in (b), it is formed so as to be convexly bent on one surface side, and has elasticity in the insertion direction of the bolt 70 inserted into the insertion hole 56 provided at the substantially central portion.

The hinge portion 13 is formed as follows. First, the contact plate 8 is attached to the side surface of the connection piece 7 by inserting the gap between the pair of contact plates 8 from the front side of the connection piece 7. At this time, the back end of the backing plate 8 is brought into contact with the step portion 52, so that the backing plate 8 is locked at the step portion 52, and the backing plate 8 can be non-rotatably attached to the connection piece 7. . Next, the contact plate 8 on the inner surface side of the connection piece 7 is brought into contact with the outer surface of each connection piece 6. Next, the insertion hole 56 is inserted into the shaft portion 9a of the bolt 70, and the urging body 10 is attached to the bolt 70. At this time, the convex side of the urging body 10 is directed toward the head 9c side of the bolt 70. Next, the bolt 70 is inserted into the through hole 48, the through hole 53, and the insertion hole 55 to penetrate the connecting piece 6, the connecting piece 7, and the contact plate 8 and the screw portion 9b of the bolt 70 protruding from the inner surface of the connecting piece 6. 1 (b) by screwing nuts 57, 58 onto the head portion 9c of the bolt 70 and the nuts 57, 58 to clamp the connecting piece 6, the connecting piece 7 and the contact plate 8 and tightening them with the tightening tool 9. The hinge portion 13 as shown in can be formed.

Next, a method of using the luminaire A of the present invention will be described. First, when illuminating with the luminaire A, the outer surface of the connecting piece 6 and the contact plate 8 provided on the inner surface of the connecting piece 6 are slid with the bolt 70 as an axis to slide the opening / closing body 3 with respect to the fixed body 2.
Is rotated upward and the opening / closing body 3 is arranged so as to face the opening 2b on the rear surface of the fixed body 2, and the coupling fitting 38 of the opening / closing body 3 is disposed.
Is rotated to elastically engage the engagement piece 39 with the engagement piece 33 of the fixed body 2. In this way, the lamp housing 4 formed by the interior of the fixed body 2 and the space in front of the reflector 34 of the opening / closing body 3 inside the lighting fixture body 1 is formed by being closed by the fixing body 2 and the opening / closing body 3. To be done. Then, the lamp 5 can be illuminated by supplying power to the lamp 5 to turn on the lamp 5 and reflecting the light generated by the reflector 34 or the auxiliary reflector 32 to pass through the glass plate 30 to illuminate an object. Is.

In the above lighting apparatus A, it is necessary to perform maintenance when the lamp 5 is replaced or the reflecting plate 34 or the like is contaminated. In this case, the coupling fitting 38 of the opening / closing body 3 is rotated upward. To release the engagement between the engagement piece 39 and the engagement piece 33 of the fixed body 2, and to slide the outer surface of the connection piece 6 and the contact plate 8 provided on the inner surface of the connection piece 7 around the bolt 70 as a handle. The part 40 is held by hand and the opening / closing body 3 is rotated downward with respect to the fixed body 2. By thus opening the lamp housing portion 4 as shown in FIG. 4, it is possible to easily perform maintenance such as replacement of the lamp 5 and removal of dirt on the reflection plate 34 and the like.

In the lighting apparatus A, the nuts 57 and 58 are deeply screwed into the threaded portion 9b of the bolt 70 to increase the tightening force of the tightening tool 9 so that the connecting piece 6 and the contact plate 8 are strongly contacted with each other. It is possible to generate a large frictional force, and it is possible to prevent the opening / closing body 3 from being rapidly rotated downward by its own weight due to the large frictional force of the hinge portion 13. 7
It is possible to prevent the damage of the hinge portion 13 such as the breakage of 0, the connecting piece 6, the connecting piece 7, and the contact plate 8.

Further, since the connecting piece 6 and the contact plate 8 which rub against each other when the opening / closing body 3 is rotated are made of a stainless steel plate having higher abrasion resistance than aluminum die casting which is a molding material, it is different from the conventional example. It is possible to prevent the connection piece 6 and the connection piece 7 from being peeled off or worn away by the coating, and to prevent the hinge portion 13 from being damaged due to corrosion or wear. It is possible to prevent the opening / closing body 3 from dropping due to breakage.

Further, since the biasing body 10 having elasticity in the tightening direction of the tightening tool 9 is provided between the head 9a of the bolt 70 and the contact plate 8 provided on the outer surface of the connecting piece 7, the connecting piece 6 and the connecting piece 6 are connected. Even if there is a tolerance in the thickness dimension of the piece 7 or the pad plate 8, this tolerance can be absorbed by the elasticity of the urging body 10, and the tightening force by the tightening tool 9 can always be maintained at a certain level or more. The biasing body 10 may not be used.

FIG. 5 (d) shows another example of the contact plate 8, which is not integrated with the connecting piece 54 like the contact plate 8 shown in FIG. 1 (a). Is. Then, one contact plate 8 is arranged on each of the outer side surface and the inner side surface of the connection piece 7, and the rear end of the contact plate 8 is brought into contact with the stepped portion 52 of the connection piece 7. Holding the contact plate 8 between the connection piece 6 and the connection piece 7 by bringing the side contact plate 8 into contact with the outer side surface of the connection piece 6 and tightening with the tightening tool 9 in the same manner as in the above embodiment. You can

6A and 6B show another example of the connecting fitting 65. The connecting metal fitting 65 of FIG.
7 is formed by projecting a connecting piece 6 at one end of 7. The connecting metal fittings 65 are used in a pair as shown in FIG.
So that it has almost the same shape as the connecting fitting 65 shown in (a),
The connection pieces 6 of the connection fittings 65 are arranged so that the inner surfaces thereof face each other, and the attachment plate 47 is used by attaching the attachment plate 47 to the protrusion 49 on the lower surface of the fixed body 2 with screws. One of the nuts 57 and 58 of the tightening tool 9 is fixed to the connecting fitting 65 shown in FIG. 6B by welding in advance at the peripheral edge of the through hole 48 on the inner surface of the connecting piece 6. Incidentally, also in the connecting fitting 65 shown in FIG. 1A, the nut 57 may be fixed to the peripheral portion of the through hole 48 by welding in advance as in the case of FIG. 6B.

Another example of the fastener 9 is shown in FIGS. 7 (a) to 7 (d). The tightening tool 9 of FIG. 7A is composed of a nut 72 having a shaft portion 9 a having a female screw 71 on a head portion 9 c and a bolt 73 screwed to the female screw 71. The tightening tool 9 shown in FIG.
And a nut 75, 58, and a tubular body 75 that is inserted into the bolt 74 to serve as the shaft portion 9a. FIG.
The tightening tool 9 in (c) is composed of a nut body 77 provided with taps (female threads) 76 opening on both sides, and a pair of bolts 78 screwed into the taps 76. The tightening tool 9 of FIG. 7D is composed of a bolt 79 having a threaded portion 9b protruding from both sides of the shaft portion 9a, and nuts 80 and 81 screwed into the threaded portions 9b. In the tightening tool 9 in this case, one nut may be screwed into each threaded portion 9b.

FIG. 8 shows another example of the connecting piece 7. The connecting piece 7 has a step portion 52 like the connecting piece 7 of FIG.
Is not formed, and instead, a pair of dowels 82 and 83 are provided on the side surface of the connecting piece 7 so as to project. When attaching the backing plate 8 to the connecting piece 7, the rear end of the backing plate 8 is brought into contact with the dowels 82 and 83, whereby the backing plate 8 is non-rotatably attached to the connecting piece 7. You can

[0031]

As described above, according to the first aspect of the present invention, the main body of the luminaire including the lamp is formed of the fixed body and the opening / closing body, and the opening / closing body is rotated with respect to the fixing body. In the lighting fixture in which the opening / closing body is attached to the fixed body via the hinge part of the, the connecting piece is formed of a material having higher abrasion resistance than the material forming the fixing body and the opening / closing body, and Attach the connecting piece to one of them, and integrally form the connecting piece on the other side of the fixed body and the opening / closing body, and connect the backing plate made of a material having higher abrasion resistance than the material forming the fixing body and the opening / closing body. Since the hinge portion is formed by pivotally attaching the connecting piece to the connecting piece in a state where the connecting piece is non-rotatably attached and the connecting piece is pressed against the connecting piece via the contact plate,
By pressing the contact plate against the connecting piece, the connecting piece and the contact plate can be strongly contacted to generate a large frictional force, and the large frictional force of the hinge part causes the opening / closing body to rapidly rotate downward due to its own weight. It is possible to prevent the hinge part from being broken such as the connecting piece or the connecting piece being broken by the abrupt rotation of the opening / closing body, and the opening / closing body is rotated. Since the connecting piece and the contact plate that rub against each other at the time are made of a material with high abrasion resistance, it is possible to prevent paint peeling and wear on the connecting piece and connecting piece as in the conventional example. This makes it possible to prevent the parts from being damaged by corrosion or wear.

According to a second aspect of the present invention, aluminum die casting is used as a material forming the fixed body and the opening / closing body, and the wear resistance is higher than that of the material forming the fixing body and the opening / closing body. Since a stainless steel plate was used as the material, by forming the connecting piece and the backing plate with a stainless steel plate, which has higher wear resistance than aluminum die casting, the connecting piece and connecting piece will not have paint peeling or wear like the conventional example. It is possible to prevent this from occurring, and it is possible to prevent damage to the hinge portion due to corrosion or wear.

In the invention according to claim 3 of the present invention, the connecting piece and the contact plate are pressed against each other by the tightening tool, and an urging body having elasticity in the pressing direction is brought into contact with the contact plate to provide the tightening tool. Therefore, even if there is a tolerance in the thickness of the connecting piece, the connecting piece, or the contact plate, this tolerance can be absorbed by the elasticity of the biasing element, and the tightening force by the tightening tool can always be secured above a certain level. It is a thing.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view of a part of a hinge portion showing an embodiment of the present invention, and FIG. 1B is a sectional view of a part of the hinge portion.

2A is a perspective view of the same as seen from the front side, and FIG. 2B is a perspective view of the same as seen from the rear side.

FIG. 3 is a sectional view of the same.

FIG. 4 is a perspective view showing a state in which the opening / closing body is rotated with respect to the above-mentioned fixed body.

5A is a perspective view of the urging body of the same, FIG. 5B is a cross-sectional view of the urging body of the same, FIG. 5C is a side view of the tightening tool of the same, and FIG. It is a perspective view which shows the other example of a board.

FIG. 6 (a) is a perspective view showing another example of the above-mentioned connecting fitting,
(B) is a perspective view showing another example of the above.

7 (a) to (d) are exploded cross-sectional views showing the same fastener.

FIG. 8 is a perspective view showing another example of the above connecting piece.

FIG. 9 is a side view showing a conventional example.

FIG. 10A is an exploded perspective view of a part of a hinge portion of a conventional example, and FIG. 10B is a sectional view of the hinge portion of the same.

FIG. 11 is an exploded perspective view of a part of another hinge portion of the conventional example.

[Explanation of symbols]

 1 Lighting Fixture Main Body 2 Fixed Body 3 Opening / Closing Body 5 Lamp 6 Connecting Piece 7 Connecting Piece 8 Contact Plate 9 Tightening Tool 10 Biasing Body 13 Hinge Part A Lighting Fixture

Claims (3)

[Claims] 1. A lighting fixture in which a lighting fixture body containing a lamp is formed of a fixed body and an opening / closing body, and the opening / closing body is attached to the fixing body via a hinge part for rotating the opening / closing body with respect to the fixing body. In the above, the connecting piece is formed of a material having higher wear resistance than that of the material forming the fixed body and the opening / closing body, and the connecting piece is attached to one of the fixing body and the opening / closing body. The connecting piece is integrally formed and a backing plate made of a material having higher wear resistance than the material forming the fixed body and the opening / closing body is non-rotatably attached to the connecting piece and connected to the connecting piece via the backing plate. A luminaire, characterized in that the hinge portion is formed by pivotally connecting the connecting piece to the connecting piece in a state where the pieces are pressed against each other. 2. The aluminum die casting is used as a material forming the fixed body and the opening / closing body, and a stainless steel plate is used as a material having higher wear resistance than the material forming the fixing body and the opening / closing body. Claim 1
The lighting fixture according to 1. 3. The tightening tool presses the connecting piece and the contact plate together, and an urging member having elasticity in the press contact direction is brought into contact with the contact plate to provide the tightening tool. The luminaire according to 2.