JP2003187633A - Lighting fixture mounting device directly fit to ceiling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture mounting device directly fit to the ceiling, of simple structure, light-weight, easy to assemble and of low cost. <P>SOLUTION: The device is an adapter 4 provided with an adapter base 7, a pair of locking members 8 arranged at either left and right side of the adapter base 7 and free in sliding movement in a radius direction, locking claws 15 formed at an outer end part of each locking member 8 rising from and setting in the adapter base 7, a biasing means 18 biasing the locking members 8 in the protruding direction of the locking claws 15, and a left and right pair of release pieces 20 mounted on the adapter base 7 in free turning and protruded from its underside. As the upper parts of the release pieces 20 are engaged with the locking members 8 and the lower parts of the release pieces 20 are turned toward an outer periphery direction, the locking members 8 move against the biasing means 18 so as the locking claws 15 to set in. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adapter which is detachably attached to a hook ceiling fixed to a ceiling and has a retractable locking claw, and a lighting fixture main body supported by the locking claw protruding from the adapter. The present invention relates to a ceiling-mounted direct lighting device mounting device.

[0002]

2. Description of the Related Art Locking members are arranged on both left and right sides of an adapter base attached to a hook ceiling so as to be movable in a radial direction, and the tip of the locking member is detachably engaged with a main body of a lighting fixture. The locking claw is formed so as to project from and retracts from the adapter base, the locking member is urged in the direction in which the locking claw protrudes, and the release protrusion provided on the lower surface of the locking member is exposed directly on the lower surface of the adapter base. Japanese Patent Laid-Open No. 2000-11740 discloses a lighting device mounting apparatus.

According to this, in a normal state in which the locking claws are projected from the adapter base, the lighting fixture main body is engaged with and supported by the locking claws, and the release projection is operated to immerse the locking claws. This allows the luminaire body to be removed. However, in this ceiling-mounted lighting fixture mounting device, since the locking member and the release projections integrated with the locking member are arranged on both the radial left and right sides of the adapter base, the release projections must be inserted in order to immerse the locking claws. It is necessary to move it towards the center of the adapter base, but it is difficult to push the release protrusion toward the center with the back of your thumb while supporting it with both hands so that the luminaire main body protruding from the adapter base does not fall down. there were.

In view of this, the locking claw can be relatively easily moved in and out while supporting the main body of the luminaire, and the release claw exposed on the lower surface of the adapter base is moved toward the outer periphery to move the locking claw to the adapter. Japanese Patent Application Laid-Open No. 2000-305
No. 23 publication. However, this one has a large number of parts and has a large number of parts because the left and right locking members are equipped with connecting bars reaching the opposite side, the connecting bars are crossed with each other, and the releasing projections are attached to the tips thereof. It was complicated and laborious to assemble, resulting in high costs.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ceiling-mounted luminaire mounting apparatus which has a simple structure and is lightweight, easy to assemble, and low in cost.

[0006]

SUMMARY OF THE INVENTION A ceiling-mounted lighting fixture mounting apparatus of the present invention is provided with adapter bases removably attached to a hook ceiling, and is arranged on both left and right sides of the adapter base and is movable in a radial direction. A pair of locking members, locking claws formed on the outer ends of these locking members and protruding and retracting from the adapter base, and a biasing means for biasing the locking members in the direction in which the locking claws project. An adapter having a pair of left and right release pieces that are rotatably mounted on the adapter base and project from the lower surface of the adapter base. The release pieces are rotatably attached to the adapter base and the upper part thereof is a locking member. And the lower part of the release piece is rotated in the separating direction, the locking member moves against the biasing force of the biasing means, and the locking claw is moved into the adapter base. Immerse It is intended.

The locking members are arranged on both the left and right sides of the adapter base, and the release pieces are directly engaged with the locking members, so that the latch members are extended to the opposite side and crossed with each other. The number of points is small, the structure is simple, and the assembly is easy. When the lower part of the release piece is rotated in the outer peripheral direction, the locking claws are made to immerse.As a result, while holding the body of the lighting fixture with both hands, hook your thumb on the release claw and pull it towards another finger. The claw can be removed from the luminaire main body, which facilitates the removal work of the luminaire main body.

A coil spring may be used as the urging means, a pair of locking members may be arranged on the same diameter, and both ends of one coil spring may abut on the inner ends thereof. Since only one coil spring for urging the locking member is required, the structure is further simplified.

[0009]

1 to 9 show a first embodiment. As shown in FIG. 9, the ceiling-mounted lighting fixture mounting device 1 according to the present invention has a hook ceiling 3 fixed to a ceiling 2.
Adapter 4 detachably attached to the adapter, and an adapter 4
And a lighting fixture main body 5 which is detachably attached. A pair of arcuate receiving ports 6 is formed on the lower surface of the hook ceiling 3, and terminals (not shown) connected to indoor wiring are installed in the inner part of the receiving ports 6.

As shown in FIGS. 1 and 2, the adapter 4 includes a hollow cylindrical adapter base 7 having an open lower surface,
The adapter base 7 includes a pair of locking members 8 which are arranged on both left and right sides and are movable in the radial direction.
The lower surface of the adapter base 7 is closed by a lower lid 9, and a pair of blades 10 that can be inserted into and removed from the receiving opening 6 of the hook ceiling 3 are projected on the upper surface of the adapter base 7 (FIGS. 4 and 5). Then, the plug blade 10 is inserted into the wide portion of the receiving opening 6 of the hook ceiling 3 and then moved in the direction of the narrow portion to be hooked, whereby the plug blade 10 is electrically connected to the terminal of the hook ceiling 3. , The adapter 4 is attached to the hook ceiling 3 in a locked state. An operation switch 11 is provided on the side surface of the adapter base 7 to release the rotation restriction of the adapter 4 with respect to the hooking ceiling 3 in the removal direction.

As shown in FIGS. 1 and 2, openings 12 are formed by cutting out side surfaces at both ends of one diameter of the adapter base 7, and a pair of springs are attached to the center of the one diameter. The piece 13 is provided so as to face the opening 12. The spring attachment pieces 13 are formed with projections 14 that project toward the opening 12. And the spring mounting piece 1
Locking members 8 are housed on the outside of 3 so as to be lined up above the one diameter and movable along this diameter.

A locking claw 15 is formed on the outer end of the locking member 8 so as to project and retract from the opening 12 of the adapter base 7 as the locking member 8 moves. The lower surface of the locking claw 15 is a tapered surface 15 ′ that is inclined upward as it approaches the tip. A through hole 16 penetrating in the vertical direction is formed in the locking member 8 slightly inside the locking claw 15.
A spring engagement groove 17 is formed at the inner end of the upper surface of the locking member 8. Further, one end of the biasing means composed of the coil spring 18 is externally fitted to the projection 14 of the adapter base 7, and the other end is brought into contact with the inner end surface of the spring engaging groove 17, whereby the locking member 8 is moved. The locking claw 15 is urged in a direction of protruding from the side surface of the adapter base 7.

A through hole 19 is formed in the lower lid 9 at a position corresponding to the through hole 16 of the locking member 8 and the locking claw 15 is formed.
Release piece 20 for immersing the adapter in the adapter base 7
Through the through hole 19 but protrudes to the lower surface of the adapter base 7. The diameter of the lower half of the through hole 19 increases toward the lower side, and the inner peripheral surface of the upper half of the through hole 19 is inclined upward inward. Grooves 21 reaching half the thickness from the upper surface of the lower lid 9 are formed on both front and rear sides of each through hole 19 (FIG. 8). A connection cord 23 electrically connected to the blade 10 extends below the lower lid 9, and a power connector 24 is attached to the tip of the connection cord 23 (FIGS. 3 and 9).

As shown in FIGS. 6-8, the release piece 20.
Is formed in a substantially V shape with the upper part bent inward,
The support shaft 22 projects from both sides of the bent corner. Further, by engaging the support shaft 22 with the groove 21 of the lower lid 9, the release piece 20 is attached to the adapter base 7 so as to be rotatable around the support shaft 22. Therefore, the release piece 20 is attached only by engaging the support shaft 22 with the groove 21 from above, and can be easily detached from the adapter base 7 only by moving the support shaft 22 upward with respect to the groove 21. And the release piece 20
The lower portion of the release piece 20 is exposed to the lower surface of the adapter base 7 through the through hole 19, and the upper portion of the release piece 20 is formed through the through hole 1 of the locking member 8.
6 to prevent the locking member 8 from coming out of the opening 12 of the adapter base 7.

In the normal state, as shown in FIGS. 1 and 4, the locking member 8 urged by the coil spring 18 is located near the outer periphery, and the locking claw 15 projects from the opening 12. At this time, the upper portion of the release piece 20 is pressed against the inner wall of the through hole 16,
The release piece 20 is located closer to the outer periphery and abuts on the outer peripheral surface of the upper half of the through hole 19, and the lower portion of the release piece 20 is located inside and the through hole 19 is located.
The inner peripheral surface of the lower half portion is abutted, and further rotation is restricted so that the locking member 8 does not come out. As shown in FIGS. 2 and 5, when the lower portion of the release piece 20 is rotated about the support shaft 22 in the separating direction (direction of arrow A),
Since the upper part of the release piece 20 rotates inward and pushes the inner wall of the through hole 16, the locking member 8 moves inward (in the direction of arrow B) along the radial direction, and as a result, the locking claw 15 moves. Immerse in the adapter base 7.

As shown in FIG. 9, the luminaire main body 5 has a cover 25 for covering an illuminating lamp (not shown).
A circular hole 26 for inserting the adapter 4 is formed in the center of the hole 5. A connection cord 27 for supplying electric power to the illuminating lamp extends from the luminaire main body 5, and a connector 28 detachably connected to the power connector 24 of the adapter 4 is attached to the tip of the connection cord 27. .

In order to mount the luminaire main body 5 on the ceiling 2, the adapter 4 mounted on the hook ceiling 3 and the circular hole 26 are aligned with each other, and then the cover 25 is pushed up. Then, the edge of the circular hole 26 collides with the locking claw 15, but since the lower surface of the locking claw 15 has a tapered surface 15 ', the edge of the circular hole 26 rises along the tapered surface 15'. , Push the locking member 8 inward. Then, when the cover 25 moves completely above the locking claw 15, the locking member 8 is pushed by the coil spring 18 and moves toward the outer periphery, and as a result, the locking claw 15 projects laterally of the adapter base 7. And engages with the lower surface of the edge of the circular hole 26 to support the luminaire main body 5.

When removing the luminaire main body 5, while supporting the cover 25 with both hands, put the thumbs of both hands on the lower part of the releasing piece 20 exposed on the lower surface of the adapter base 7, and pull the thumbs to other fingers to release the releasing piece. The lower part of 20 is rotated in the separating direction. Then, the upper part of the release piece 20 rotates inward and presses the locking member 8 in the central direction, so that the locking member 8 moves inward against the biasing force of the coil spring 18, and the locking claw 15 becomes the adapter. Immerse inside the base 7. As a result, the engagement between the locking claw 15 and the edge of the circular hole 26 is released, and the luminaire main body 5 can be lowered. When the release piece 20 is released, the locking member 8 is pushed by the coil spring 18 and moves in the outer peripheral direction, and the locking claw 15 projects.

10 and 11 show a second embodiment of the present invention. The spring attachment pieces 13 are not provided on the adapter base 7, and the locking members 8 are arranged on both sides of one diameter of the adapter base 7. Further, both ends of one coil spring 18 are fitted into the spring engaging grooves 17 of the left and right engaging members 8 so that both ends of the coil spring 18 are brought into contact with the inner end surface of the engaging member 8 (the spring engaging groove 17).
Back wall). Then, the locking member 8 is locked by the coil spring 18, and the locking claw 15 is locked by the adapter base 7.
It is urged in a direction projecting from (FIG. 10). As shown in FIG. 11, when the lower portion of the release piece 20 is rotated in the separating direction, the upper portion of the release piece 20 pushes the locking member 8 inward, the coil spring 18 is crushed from both sides, and the locking claw 15 is released. Immerse in the adapter base 7. Other configurations and a method for attaching and detaching the lighting fixture body 5 are almost the same as those in the first embodiment.

[0020]

According to the first aspect of the invention, while supporting the main body of the luminaire with both hands, the thumb hooked on the lower portion of the releasing piece is pulled to rotate the lower portion of the releasing piece in the separating direction. The lighting fixture main body can be easily removed, and it is less bulky than the one in which the left and right locking members are crossed with each other, the number of parts is small, and the assembly is easy, so the manufacturing cost is reduced. It is possible. According to the invention of claim 2, since only one coil spring for urging the locking member is required, the structure is further simplified.

[Brief description of drawings]

FIG. 1 is a sectional view of an adapter according to a first embodiment when a locking claw is projected.

FIG. 2 is a cross-sectional view of the adapter according to the first embodiment when the locking claw is immersed.

FIG. 3 is a perspective view of an adapter

FIG. 4 is a side view when the locking claw of the adapter is projected.

FIG. 5 is a side view when the locking claw of the adapter is immersed.

FIG. 6 is a perspective view of a locking member and a release piece in a normal state.

FIG. 7 is a perspective view of a locking member and a release piece when the release piece is rotated.

FIG. 8 is an exploded perspective view of a lower lid and a release piece.

FIG. 9 is an exploded perspective view of a ceiling-mounted lighting fixture mounting device.

FIG. 10 is a sectional view of the adapter according to the second embodiment when the locking claws are projected.

FIG. 11 is a cross-sectional view of the adapter according to the second embodiment when the locking claw is inserted.

[Explanation of symbols]

1 Ceiling-directed lighting fixture mounting device 2 ceiling 3 hook ceiling 4 adapter 5 Lighting fixture body 6 Receptacle 7 Adapter base 8 locking member 9 Lower lid 10 blades 11 Operation switch 12 openings 13 Spring mounting piece 14 Protrusion 15 Locking claw 15 'tapered surface 16 through holes 17 Spring engagement groove 18 Coil spring (biasing means) 19 through holes 20 Release piece 21 groove 22 Support shaft 23 Connection code 24 power connector 25 covers 26 circular holes 27 connection cord 28 connectors

Claims (2)

[Claims] 1. An adapter base detachably attached to a hook ceiling, a pair of locking members disposed on both left and right sides of the adapter base and movable in a radial direction, and outer end portions of these locking members. A locking claw formed on the adapter base and protruding from the adapter base, a biasing means for biasing the locking member in a direction in which the locking claw projects, and a pair of left and right mounted on the adapter base and projecting from the lower surface thereof. In a ceiling-mounted lighting fixture mounting device comprising an adapter having a release piece, the release piece is rotatably attached to the adapter base, and an upper portion thereof is engaged with the locking member, respectively, By rotating the lower part of the release piece in the separating direction, the locking member moves against the biasing force of the biasing means, and the locking claw is retracted into the adapter base. A lighting device mounting device directly attached to the ceiling. 2. The urging means comprises a coil spring, the pair of locking members are arranged on the same diameter, and both ends of one coil spring are in contact with inner ends thereof. Ceiling lighting fixture mounting device.