JPS6039927Y2 - lighting equipment - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to lighting equipment, and more particularly to a mounting structure for a ballast.

[Conventional technology]

In general, this type of fluorescent lighting equipment has a structure in which a ballast is attached by screws to the inner side of the upper surface of the equipment body, which is attached to a surface to which it is attached, such as a ceiling surface.

In this structure, the large-diameter head of the screw that attaches the ballast protrudes from the top end, and the large-diameter head of this screw comes into contact with the surface to which it is attached, such as the ceiling, and the vibration sound of the ballast is transmitted to the non-mounted surface. This caused noise.

For this reason, conventional lighting equipment has a structure in which the mounting surface of the main body of the equipment has a bulging protrusion that also serves as reinforcement, so that the large diameter head of the screw rod to which the stabilizer is attached does not come into contact with the mounting surface. is taken.

[Problem that the invention attempts to solve]

In the above-mentioned conventional structure in which protrusions are formed on the mounting surface of the fixture body, the large diameter head of the screw rod may come into contact with the mounting surface due to warpage of the fixture body, and this tendency is particularly common in long lighting fixtures. It was remarkable.

In addition, in this type of lighting equipment, the ballast is attached to the inside of the upper surface of the equipment body, the threaded rod is screwed into the screw insertion hole of the equipment body from the outside of the upper surface of the equipment body, and then this screw rod is tightened to the ballast with the tightening screw. However, in this structure, the direction in which the stabilizer is installed and the direction in which the screw rod is inserted are opposite from the inside and outside of the mounting surface of the device body, and the device body is connected to the stabilizer. The problem was that the workability was poor, such as the need to turn it over during installation work.

The present invention was developed in view of the above-mentioned drawbacks, and the large-diameter head of the screw rod that attaches the ballast is exposed to the recess formed in the mounting surface of the lighting equipment body, and this large-diameter head is attached to a ceiling or other surface. The large-diameter head of the screw rod that is secured to the ballast by the opening in the side wall surface of the recess of the device main body is prevented from coming into contact with the mounting surface and the vibration sound of the ballast is not transmitted. To provide a lighting equipment in which the screw rod and the ballast are oriented in the same direction so that the screw rod and the ballast can be engaged from the inside of the equipment body, and the workability of installing the ballast is improved.

[Means for solving problems]

The lighting equipment of the present invention includes a lighting equipment main body, which has an opening in the side wall surface of a recess formed in the mounting surface, and an engagement groove opened in the opening in the bottom of the recess, and a recess in the equipment main body. a screw rod having a large diameter head that is housed in the recess of the instrument body from the opening and is engaged with the engagement groove; and a stabilizer that is engaged with the screw rod; The large-diameter head of the screw rod that locks the stabilizer is housed in the recess from the opening of the recess of the lighting fixture body, and the screw rod is engaged with the engagement groove to stabilize the screw rod. The present invention is characterized in that the large-diameter head of the screw rod does not come into contact with the surface to which it is attached, such as the ceiling, by engaging the screw rod and tightening the nut on the screw rod.

[Effect]

The lighting device of the present invention positions the large-diameter head of the screw rod in the opening formed in the side wall surface of the recess of the device body, and moves the screw rod so that it engages with the inner end of the engagement groove. The large head is housed in the recess, the screw rod is held vertically, a stabilizer is engaged with the screw rod, a nut is tightened on the screw rod, and the stabilizer is installed in the instrument body.

In this state, the large-diameter head of the screw rod does not protrude from the top surface of the instrument body, but is stored in the recess, and even when the instrument body is attached to the surface to be mounted, the large-diameter head of the screw rod does not protrude from the top surface of the instrument body. never be contacted.

〔Example〕

Next, the structure of an embodiment of the present invention will be explained with reference to the drawings.

Reference numeral 1 denotes a lighting equipment main body, which is formed into an elongated shape, and a reflector plate 2 is detachably attached to an opening on the bottom surface, and lamp sockets 4, 4, in which straight tube lamps 3 are mounted, are mounted opposite each other on the bottom surface of both ends. installed.

Further, the upper surface 5, which is the mounting surface of the instrument body 1, has a recess 6,
6 are formed at intervals for attaching ballasts 7.

Openings 8, 8 are formed in the outer side wall surfaces of both the recesses 6, 6, respectively, and the bottom surfaces 9 of the recesses 6, 6 have an engaging groove 10, which has one end opened in the openings 8, 8. 10 is formed in the longitudinal direction of the instrument body 1.

The ballast 7 also includes a ballast main body 14 made up of an iron core 12 and a coil 13, and a case 15 that houses the ballast main body 14. Screw rod insertion holes 16, 16 are formed at both ends of the case 15. has been done.

The screw rod insertion holes 16, 16 are provided with a vibration isolator 17 made of rubber or the like.
An annular locking groove 18 formed on the outer circumferential surface is inserted and locked.

A threaded rod through hole 19 is formed in the vibrating body 17 in the axial direction, and a square hole 20 is formed above the screw rod through hole 19.

Reference numeral 21 denotes a screw rod, and a square column part 23 is formed adjacent to the large-diameter head 22 to be engaged with the engagement groove 10 of the instrument main body 1 and the square hole 20 of the vibration isolator 17 in a locking manner.

Further, a plurality of protrusions 24 are formed on the upper surface of the instrument main body 1 to reinforce the instrument main body 1.

Next, the operation of this embodiment will be explained.

The locking grooves 18 of the vibration isolator 17 are fitted and locked into the screw rod insertion holes 16 and 16 at both ends of the case 15 of the stabilizer 7.

Then, the large-diameter head 22 of one screw rod 21 is positioned inside the opening 8 formed in the side wall surface of one of the recesses 6 from the inside of the instrument body 1, and the prismatic portion 23 of the screw rod 21 is inserted into the engagement groove 10. The screw rod 21 is moved so as to engage up to the inner end of the screw rod 21, and the large-diameter head 22 is housed in the recess 6 to hold the screw rod 21 vertically.

Next, insert the large diameter head 22 of the other screw rod 21 into the other recess 6.
facing the opening 8 in the side wall surface of the screw rod 21.
The threaded rod 21 is moved so that it engages with the engagement groove 10.

And screw rod insertion holes 1 at both ends of the case 15 of the stabilizer 7
6 and 16, the large-diameter head 22 engages with both side edges of the engagement groove 10 of the recess 6, and the screw rods 21, 21, which are held perpendicularly to the instrument body 1, are connected to the screw rods of the vibration isolator 17. It is inserted from the upper end side of the through hole 19, and the prismatic part 23 of this threaded rod 21 is inserted into the vibration isolator 17.
The stabilizer is engaged with the rectangular hole 20 of the screw rod 21 through the washer 25 and the nuts 26, 26 are tightened. 7 to the instrument body 1
Can be installed inside.

In this state, the large-diameter heads 22 of the screw rods 21, 21 do not protrude from the upper surface of the instrument body 1, but are housed in the recesses 6, 6, and even when the instrument body 1 is attached to the mounting surface 27, the screw rods do not stick. 21,2
The large diameter head 22 of No. 1 does not come into contact with the mounting surface 27.

[Effect of idea]

According to the present invention, an opening is formed in the side wall surface of the recess formed in the mounting surface of the lighting fixture body, and an engagement groove opened to this opening is formed in the bottom of the recess. By locating the large-diameter head of the screw rod that attaches the stabilizer inside the stabilizer, there is no risk of the screw rod coming into contact with the surface to which it is attached, even when the device body is attached to a mounting surface such as a ceiling. ,
There is no risk of the vibration sound of the ballast being transmitted, and noise can be reduced, and the large diameter head of the screw rod is positioned from the inside of the device body through the opening to the outside of the device body, that is, inside the recess, and the bottom surface of the recess is By engaging the stabilizer with the screw rod inserted into the engagement groove of the device and tightening the nut, the stabilizer is brought into contact with the inner surface of the device body, and then the screw rod is inserted from the outside of the device body. This eliminates the need for a reversing operation and improves the workability of installing the ballast.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is an enlarged longitudinal sectional front view of a portion of the same, and Fig. 3
The figure is an exploded perspective view of a portion of the same as above. DESCRIPTION OF SYMBOLS 1... Lighting fixture main body, 5... Upper surface serving as the mounting surface of the fixture main body 1, 6... Recessed portion, 7...
... Ballast, 8... Opening, 9...
Bottom surface of recess 6, 10... engagement groove, 21...
...Screw rod, 22...Large diameter head.

Claims (1)

[Scope of utility model registration request] A lighting equipment main body having an opening in the side wall surface of a recess formed in the mounting surface and an engagement groove opened in the opening in the bottom of the recess; Consisting of a screw rod having a large diameter head housed in a recess of the main body and engaged with the engagement groove, and a stabilizer that is engaged with the screw rod, the stabilizer is locked. Storing the large diameter head of the screw rod into the recess from the opening of the recess of the lighting fixture body, engaging the screw rod in the engagement groove, and engaging the stabilizer with the screw rod. A lighting fixture characterized in that a nut is tightened on the screw rod so that the large-diameter head of the screw rod does not come into contact with a surface to which it is mounted, such as a ceiling.