JPH06162816A - Luminaire fitted on ceiling - Google Patents

Abstract

PURPOSE:To removing work at a high position with safety and ease by employing a spring energized latch mechanism for mutually fitting the members of a luminaire fitted on a ceiling and exposing the removing operation portion to the lower face of the luminaire mainframe. CONSTITUTION:When a luminaire mainframe 7 is fitted to a fitting adaptor 4 fixed to a ceiling, the mainframe 7 is pushed up from the lower face of the fitting adaptor 4. Then, the locked portion 8 of the mainframe 7 is put in contact with the inside face of the fitting adaptor 4 and displaced inward against a spring 9. When the mainframe 7 is further pushed up, the locked portion 8 is fitted to a locking hole 6 and the mainframe 7 is fitted to the fitting adaptor 4. To remove the mainframe 7 from the fitting adaptor 8, the operation portion 15 exposed to the lower face of the mainframe 7 is pushed up against a spring 13 so that the DC-AC conversion portion 14 gives inward displacement to the locked portion 8 which is released from the locking hole 6 to remove the mainframe 7 being lowered from the fitting adaptor 4. It is thus possible to do removing work for the mainframe 7 at a high position with safety and ease.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted lighting fixture, and more particularly to a mechanism for attaching / detaching constituent members of a lighting fixture generally referred to as a ceiling-mounted type.

[0002]

2. Description of the Related Art Heretofore, the work of mounting such type of lighting equipment has not been carried out so much. From a general point of view, it is conceivable to employ a spring-biased latch mechanism for mutual attachment of a plurality of members in order to facilitate the attachment. That is, in order to keep the locking parts provided on each member in a locked state, one locking part is attached by a spring provided laterally on the member side along the radiation from the center of one member. It is generally known to employ a biasing mechanism. However, an example in which such a mechanism is adopted in a ceiling-mounted lighting fixture is disclosed in JP-B-58-487.
Only the No. 36 publication is found.

[0003]

In the above publication, the mounting is relatively easy. That is, by simply fitting the member called a stat member and the member called a stat cover member in the vertical direction, the respective locking portions provided on the respective members are brought into the locked state, so that the members are mounted on the ceiling. By the way, in the case of a ceiling-mounted lighting fixture, it is necessary to remove the fixture once installed by cleaning or moving, but in such a case, dangerous removal work at high places is required. Even if the latch mechanism is adopted, there are problems that are not recognized in this respect. In other words, if the compatibility is insufficient due to the safety and ease of removal work at high places peculiar to ceiling-mounted lighting fixtures, and if the compatibility is insufficient, how would the mechanism be improved? There was no recognition as to what to do. That is, there was a point that was not motivated as a problem to be solved. For example, in the above publication,
The removal of the stat member and the stat cover member is performed by rotating and loosening a stopper formed of a screw exposed on the side surface of the stat cover member and then further rotating the stat cover member. As described above, since the stopper is exposed on the outer side surface of the stat cover member, it is located at a height extremely close to the ceiling and is not appropriate in view of safety and easiness of removal work. Moreover, the operation of rotating the stat cover member at a high place is extremely dangerous.

In view of the fact that the present invention has a problem to be solved by all means in regard to the work of removing at high places and this is very important, the work of removing at high places can be carried out safely and easily. An object is to provide a ceiling-mounted lighting fixture.

[0005]

According to a first aspect of the present invention, a first member and a second member are longitudinally fitted to each other, and a first engaging portion provided on the first member side and a first engaging portion provided on the second member side are provided. (2) A lighting fixture that is mounted on the ceiling by locking the locking part,
The first locking portion is urged by a spring provided laterally on the first member side so as to follow the radiation from the center of the first member, and the first locking portion and the second locking portion are locked. The unlocking member that is maintained and is provided on the first member side to release the locked state has the lower end operation portion exposed to the lower surface on the first member side, and the operation portion is displaced. Thus, the ceiling-mounted lighting fixture is such that the first locking portion is displaced against the biasing direction of the spring and the locked state is released.

According to a second aspect of the present invention, the first member and the second member are fitted in the longitudinal direction, and the first locking portion provided on the first member side and the second locking portion provided on the second member side are engaged. A lighting fixture that is mounted on a ceiling when it is in a stopped state, in which a first locking portion is urged by a spring provided in the lateral direction on the first member side along the radiation from the center of the first member, The locked state of the first locking portion and the second locking portion is maintained, and the locking release member provided on the first member side for releasing this locking state has the operation portion at the lower end of the first locking portion. The lock release member is exposed on the lower surface on the member side, and the lock release member is moved upward by the displacement operation of the operation portion, and the first lock portion is displaced counter to the biasing direction of the spring through the orthogonal conversion portion. Is a ceiling-mounted luminaire in which the locked state is released.

According to a third aspect of the present invention, the first member and the second member are fitted in the longitudinal direction, and the first locking portion provided on the first member side and the second locking portion provided on the second member side are engaged. A lighting fixture mounted on a ceiling when in a stopped state, wherein a first spring provided laterally on the first member side so as to follow radiation from the center of the first member biases the first locking portion. Thus, the locked state of the first locking portion and the second locking portion is maintained, and the locking release member provided on the first member side for releasing this locking state is
The unlocking member is urged in the vertical direction by a second spring provided on the first member side, the lower end operation portion is exposed on the lower surface on the first member side, and the operation portion is displaced and operated. Is moved upward against the urging direction of the second spring,
In the ceiling-mounted lighting fixture, the first locking portion is displaced counter to the biasing direction of the first spring via the orthogonal conversion portion to release the locked state.

[0008]

According to the first aspect of the present invention, since the operating portion at the lower end of the unlocking member is exposed on the lower surface on the first member side, the operating portion can be operated safely and easily at the time of removal at a high place. . On the contrary, in the above-mentioned publication, the operation part (stopper) operated by the user at the time of removal is exposed on the outer side surface, and the position is inevitably very close to the ceiling, so the removal work is not easy and there is a considerable risk. Is accompanied by.

According to the second aspect of the invention, of course, the above operation is further achieved. Further, the lock releasing member is moved upward by an operation of simply pushing up the operation portion exposed on the lower surface on the first member side, and through the orthogonal conversion portion. The first locking portion is displaced against the biasing direction of the spring to release the locked state, so that the operation portion can be operated more safely and easily when detaching at a high place.

According to the third aspect of the invention, the above-mentioned action is of course, and further, the locking release member pushed up once more smoothly returns to its original position by the urging force of the second spring. It returns to the original position more smoothly, and the work to put it in the attached state again is done more smoothly.

[0011]

EXAMPLES Examples of the present invention will now be described with reference to the drawings. However, the present invention should not be construed as limited based on matters peculiar to only the examples, and the technical scope of the present invention. Must be determined based on the matters shown in the claims.

A ceiling ceiling body 2 and a mounting plate 3 are fixed to the ceiling 1 in advance. The cylindrical mounting adapter 4 is mounted on the ceiling 1 by screwing a screw 5 onto the mounting plate 3, and a locking hole 6 is provided on the side surface. A locking portion 8 is provided on the upper surface of the disk-shaped main body 7 so as to be covered with a case 11 which is biased outward by a spring 9 and attached by a screw 10. Then, the locking portion 8 is locked by entering the locking hole 6. The unlocking member 12 has an intermediate portion around which a spring 13 is wound, which penetrates the main body 7, and has an inclined orthogonal conversion portion 14 at the upper end for displacing the locking portion 8 inward by upward movement. The operation portion 15 at the lower end is exposed on the lower surface of the main body 7.

More specifically, the upper surface of the tip of the engaging portion 8 has a sloped shape, the spring 9 is wound around the pin 16 at the rear end, and the pin 16 partially projects from the rear end of the case 11. The convex portion 17 on the intermediate upper surface of 8 projects from the long hole 18 of the case 11. The orthogonal conversion part 14 of the unlocking member 12 is the locking part 8
And the uppermost end protrudes from the hole 19 of the case 11 and a retaining pin 20 is attached to that portion. The intermediate side surface of the mounting adapter 4 has a step portion 21 that expands outward, has a reflecting surface 22 that extends from the end thereof along the side surface of the main body 7 and then expands outwardly, and the end portion of the reflecting surface 22 is often Providing a known glove fitting 23, the glove 24
Is installed. A cord 25 and a hooking sealing cap 26 are led out from the upper surface of the main body 7, and an annular fluorescent lamp 28 is held on the lower surface of the main body 7 via a support spring 27.

According to the above construction, in order to mount the main body 7 on the mounting adapter 4, the hook sealing cap 26 is connected to the hook sealing body 2 and then the main body 7 is pushed up from the lower surface of the mounting adapter 4. At this time, the locking portion 8 comes into contact with the inner side surface of the mounting adapter 4 and is displaced inward, and when the main body 7 is further pushed up, the locking portion 8 fits into the locking hole 6 and the main body 7 is mounted. It is attached to the adapter 4.
Further, in order to remove the main body 7 from the mounting adapter 4, the operation portion 1
Push up 5. At this time, since the orthogonal conversion portion 14 displaces the locking portion 8 inward, the locking portion 8 is released from the locking hole 6 and can be removed by lowering the main body 7 as it is.

As described above, according to this embodiment, the main body 7 and the mounting adapter 4 can be easily attached and detached, and the mounting adapter 4 covers the locking mechanism portion on the upper surface of the main body 7 to improve the appearance.

In addition to providing the locking hole 6 directly on the mounting adapter 4, a plate material having a hole equivalent to the locking hole 6 on the inner surface of the mounting adapter 4 may be fixedly mounted on the mounting adapter 4. At this time, the hole may be substantially U-shaped with the upper edge opened.

In the first invention based on the above-described embodiment, the first member 7 and the second member 4 are fitted in the longitudinal direction, and the first locking portion 8 and the second member provided on the first member 7 side are provided. A lighting fixture that is attached to the ceiling 1 when the second locking portion 6 provided on the fourth side is in a locked state, and is lateral in the first member 7 side so as to follow the radiation from the center of the first member 7. The first locking portion 8 is urged by the spring 9 provided on the first locking portion 8 to maintain the locked state of the first locking portion 8 and the second locking portion 6, and the first locking portion 8 is released to release this locking state. Lock release member 12 provided on the member 7 side
The operating portion 15 at the lower end thereof is exposed on the lower surface on the first member 7 side, and the displacement of the operating portion 15 displaces the first locking portion 8 against the urging direction of the spring 9. It is nothing but a ceiling-mounted lighting fixture that releases the locked state.

According to the first aspect of the present invention, since the operation portion 15 at the lower end of the locking release member 12 is exposed on the lower surface on the first member 7 side, it is safe to operate the operation portion 15 when detaching at a high place. And easy to do.

Next, in the second invention, the first member 7 and the second member 4 are fitted in the longitudinal direction, and the first engaging portion 8 provided on the first member 7 side and the second member 4 side are provided. A lighting fixture that is attached to the ceiling 1 when the second locking portion 6 is in the locked state, and is a spring provided laterally on the first member 7 side so as to follow the radiation from the center of the first member 7. 9 is the first locking portion 8
Is urged to maintain the locked state of the first locking portion 8 and the second locking portion 6, and to release this locked state, the first member 7
The unlocking member 12 provided on the side is exposed at the lower surface of the operating portion 15 at the lower end on the first member 7 side, and the unlocking member 12 is moved upward by the displacement operation of the operating portion 15. The ceiling-mounted lighting fixture is one in which the first locking portion 8 is displaced through the orthogonal conversion portion 14 against the biasing direction of the spring 9 to release the locked state.

According to the second aspect of the invention, the above-mentioned action is of course, and further, the unlocking member 1 is simply operated by pushing up the operating portion 15 exposed on the lower surface on the first member 7 side.
2 is moved upwards, the first locking portion 8 is displaced through the orthogonal conversion portion 14 against the biasing direction of the spring 9, and the locked state is released.
The operation of the operation unit 15 can be performed more safely and easily.

According to the third aspect of the invention, the first member 7 and the second member 4 are fitted in the longitudinal direction, and the first locking portion 8 provided on the first member 7 side and the second member 4 side are provided. A lighting fixture that is attached to the ceiling 1 when the second locking portion 6 is in a locked state, and is provided laterally on the first member 7 side so as to follow the radiation from the center of the first member 7. The first locking portion 8 is biased by the one spring 9 to maintain the locked state of the first locking portion 8 and the second locking portion 6, and the first member 7 is used to release this locked state. The unlocking member 12 provided on the first side is vertically urged by the second spring 13 provided on the first member 7 side, and the operation portion 15 at the lower end is exposed on the lower surface on the first member 7 side. Then, the lock release member 12 is moved upward against the biasing direction of the second spring 13 by the displacement operation of the operating portion 15, The first locking portion 8 is none other than the ceiling mounting luminaires is displaced against the biasing direction in which the locking state is released in the first spring 9 via the section 14.

According to the third aspect of the invention, the above-described action is of course, and further, the unlocking member 12 that has been pushed up returns to the original position more smoothly by the urging force of the second spring 13. The stopper portion 8 also returns to the original position more smoothly, and the work of putting it in the attached state again can be performed more smoothly.

[0023]

As described above, in the ceiling-mounted luminaire of the present invention, when the latch mechanism by the spring bias is adopted for the mutual attachment of a plurality of members, it is necessary to remove the attached one by cleaning or moving. With the above in mind, it was possible to make improvements by recognizing the problem that removal work at high altitudes should be fully considered, and the operation section operated by the user during removal is exposed on the lower surface on the first member side. Therefore, there is an effect that the dismounting work at a high place can be performed safely and easily.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a vertical sectional view of the same.

[Explanation of symbols]

 1 Ceiling 4 Second Member (Mounting Adapter) 6 Second Locking Part (Locking Hole) 7 First Member (Main Body) 8 First Locking Part (Locking Part) 9 First Spring (Spring) 12 Unlocking Member 13 Second spring (spring) 14 Orthogonal transformation part 15 Operation part

Claims (3)

[Claims] 1. A first member and a second member are fitted in a vertical direction so that a first locking portion provided on the first member side and a second locking portion provided on the second member side are in a locked state. In the lighting fixture to be mounted on the ceiling, the first locking portion is biased by the spring laterally provided on the first member side so as to follow the radiation from the center of the first member. The locking state of the stop portion and the second locking portion is maintained, and the unlocking member provided on the first member side to release this locking state has the operation portion at the lower end on the first member side. A ceiling-mounted luminaire, which is exposed on a lower surface, and is displaced in opposition to an urging direction of the spring by displacing the operating portion to release the locked state. 2. A first member and a second member are fitted in a vertical direction, and a first locking portion provided on the first member side and a second locking portion provided on the second member side are in a locked state. In the lighting fixture to be mounted on the ceiling, the first locking portion is biased by the spring laterally provided on the first member side so as to follow the radiation from the center of the first member. The locking state of the stop portion and the second locking portion is maintained, and the unlocking member provided on the first member side to release this locking state has the operation portion at the lower end on the first member side. The unlocking member is exposed to the lower surface, and the lock releasing member is moved upward by the displacement operation of the operating portion, and the first locking portion is displaced counter to the urging direction of the spring through the orthogonal conversion portion to move the locking member. The ceiling-mounted luminaire according to claim 1, wherein the stopped state is released. 3. A first member and a second member are fitted in a longitudinal direction, and a first locking portion provided on the first member side and a second locking portion provided on the second member side are brought into a locked state. A lighting fixture that is attached to the ceiling by becoming, wherein the first locking portion is biased by a first spring laterally provided on the first member side along the radiation from the center of the first member, The locking state of the first locking portion and the second locking portion is maintained, and the locking releasing member provided on the first member side to release the locking state is provided on the first member side. While being urged vertically by the second spring,
The operation portion at the lower end is exposed on the lower surface on the first member side, and the displacement operation of the operation portion causes the unlocking member to move upward against the biasing direction of the second spring, and through the orthogonal conversion portion. The first locking portion is displaced against the biasing direction of the first spring to release the locked state.
The ceiling-mounted lighting fixture described.