JP3175183B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

 [Object of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device used as a spotlight or the like.

[0002]

2. Description of the Related Art This type of luminaire in which a lamp main body is held on a ceiling surface or a wall surface via a rod-shaped arm has a structure in which the lamp main body is normally rotatable with respect to an arm, and a light beam is moved to a desired position. Is configured to be irradiated. The lamp body houses a lamp socket therein, and the lamp is mounted on the socket. Also,
The arm is provided with a through hole, a wiring cord is passed through the through hole, and power is supplied to the lamp.

Here, as means for connecting the lamp body to the arm, conventionally, as shown in FIG.
A groove is formed in the outer peripheral wall of the holding member 3 and the groove is screwed from the outside of the holding member 3 attached to the end of the arm 2. The lamp body 1 can be tilted about the groove, and the light of the lamp can be directed to a target direction.

[0004]

However, in the conventional luminaire, since the main body of the luminaire is connected to the arm by screwing as described above, the structure becomes complicated and assembly is not easy. Further, the center line of the arm and the center line of the lamp body do not coincide with each other.

The present invention has been made in view of the above-mentioned problems, and has a simple structure and easy assembly.
It is another object of the present invention to provide an easy-to-use lighting device in which the center line of the arm and the lamp body can be matched. [Configuration of the invention]

[0006]

SUMMARY OF THE INVENTION A lighting apparatus according to the present invention comprises :
A through hole communicating with the end side and the rear end side;
A lamp body having a locking portion formed at the rear end side;
When one end is inserted from the front end side of the through hole of the main body, the lamp
Protruding on both sides of the other end so as to lock on the locking part of the main body
It has a shaft provided, and this shaft
An arm for rotatably supporting the body; provided on the shaft
As well as friction with the inner wall of the locking part of the lamp body
And rotation suppressing means for suppressing rotation.
I do.

[0007]

[0008]

[0009]

[0010]

According to the lighting device of the present invention, the front of the through hole of the lighting device main body.
By inserting the arm from the end side, this arm
The lamp body is rotatably supported by the shaft provided at
And a rotation suppressing means provided on the shaft.
Is in contact with the inner wall of the locking part of the lamp body and is turned by friction.
Suppress movement.

[0011]

[0012]

[0013]

[0014]

FIG. 1 is a block diagram showing a first embodiment of the present invention. In the drawing, reference numeral 1 denotes a lamp main body in which a lamp socket 4 is housed, 2 denotes an arm which supports the lamp main body 1 at an end portion so as to be rotatable and a wiring cord 5 passes through an internal through hole, and 6 denotes an arm .
A shaft 7 protruding on both sides of the end of the unit 2 is a V-shaped leaf spring attached to the shaft 6, between the tip of the leaf spring 7 and the wall surface of the groove which is the inner wall surface of the lamp body 1. The rotation of the lamp body 1 with respect to the arm 2 is suppressed by the frictional force.

FIG. 2 shows the shape of the end of the arm 2 which is connected to the lamp main body 1. FIG. 3 shows a state of the assembling work. First, the arm 2 is inserted from inside the lamp body 1 (lamp side) with one end of the wiring cord 5 connected to the lamp socket 4. At this time, the shaft 6 is locked to the end of the lamp body 1 and does not come out of the arm 2. Next, the lamp socket 4 is fixed to the inside of the lamp body 1 with screws 8, and a lamp 9 such as a halogen bulb is mounted on the socket 4. Then, the other end of the arm 2 is fixed to a ceiling surface or the like, and the other end of the wiring cord 5 is connected to a power source, thereby completing the assembling operation.

In the lighting fixture having the above configuration,
The end of the arm 2 is joined to the center of the end of the lamp body 1, so that the center lines of the arm 2 and the lamp body 1 coincide. For this reason, the irradiation direction of the lamp 9 can be easily adjusted, and the device is easy to use. Further, the structure is simple and the assembling is easy. The wiring code 5 does not necessarily have to be wired through the inside of the arm 2, and may be wired to the arm 2.

FIG. 4 is a block diagram showing a second embodiment of the present invention, and the same reference numerals as in FIG. 1 denote the same components. In the drawing, reference numeral 10 denotes a locking member having a large frictional force provided in a gap between the tip of the arm 2 and the inner wall of the lamp body 1, and is formed by a projection or the like. Then, the rotation of the lamp main body 1 with respect to the arm 2 is suppressed by the locking member 10, and the irradiation direction of the lamp can be adjusted at a desired angle. Even with such a configuration, the center lines of the arm 2 and the lamp body 1 can be matched, and the same operation and effect as in the above embodiment can be obtained. As means for suppressing rotation, other O
Any type such as a ring and a push screw may be used, and those skilled in the art can appropriately select them.

[0018]

FIG. 5 is a block diagram showing another embodiment of the present invention. In this embodiment, a V-shaped leaf spring 12 is attached to a shaft 6 protruding from both ends of an end of an arm 2 so that the tip of the spring 12 contacts the inner wall of the lamp body 1 and the lamp socket 4. The leaf spring 12 is housed in a groove 13 inside the lamp body 1. like this
With such a configuration , it is possible to prevent the lamp socket 4 and the shaft 6 from projecting.

[0020]

According to the first aspect of the present invention, as described above.
According to such a lighting fixture, the front end of the through hole of the lamp body is
The arm is inserted into the arm
The lamp body is rotatably supported by the shaft
And the rotation suppressing means provided on the shaft is a lamp main body.
Suppression of rotation by friction in contact with the inner wall of the locking part
Therefore, it is easy to assemble.
A dynamic state is feasible.

According to a third aspect of the present invention, there is provided a lighting device.
If the rotation suppressing means provided on the shaft
It is provided so as to contact the
The step is blocked from moving by the lamp socket, resulting in an arc.
Movement can be prevented, and a stable structure can be provided.

[0022]

[0023]

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the shape of the end of the shaft of FIG. 1;

FIG. 3 is an explanatory view showing a state of the assembling work of the lighting fixture of FIG. 1;

FIG. 4 is a configuration diagram showing another embodiment of the present invention.

FIG. 5 is a configuration diagram showing another embodiment of the present invention.

FIG. 6 is a sectional view showing a conventional example.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-121583 (JP, A) JP-A-2-244505 (JP, A) JP-A 63-12106 (JP, U) JP-A Sho 56- 29852 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F21V 21/30 F21V 21/10 F21V 21/26

Claims (3)

(57) [Claims] 1. A through hole communicating with a front end side and a rear end side.
And a locking portion is formed on the rear end side of the through hole.
When one end of the lamp body is inserted from the front end side of the through hole of the lamp body,
Protrudes on both sides of the other end to lock to the locking part of the lamp body
The shaft is provided as
An arm rotatably supporting the lamp body ; an inner wall provided on the shaft and having a locking portion of the lamp body.
Luminaire characterized by comprising: a rotation suppressing rotation suppressing means by friction in contact with. The rotation suppressing means is constituted by a V-shaped leaf spring.
The lighting device according to claim 1, wherein the lighting device is formed. 3. A lamp socket is provided in a through hole of a lamp body.
Is provided, and the rotation suppressing means comes into contact with the lamp socket.
The lighting fixture according to claim 1, wherein the lighting fixture is provided as follows .