JPS636807Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lighting fixture, particularly a hanging fluorescent lamp fixture.

Conventionally, this type of hanging fluorescent fixture is used by suspending a lighting fixture lamp body from the lower end of a cord or the like that hangs down from a ceiling surface. For example, as shown in FIGS. 1 and 2, a cord adjuster 3 is fixed to the upper end of a cylinder 2 that houses a stabilizer element 8 inside and has a cord accommodation space 9 above the stabilizer element 8. A disc-shaped lid body 4 was firmly attached. Note that 10 is the lamp body, and 7 is a compound. however,
In this case, a cord adjuster 3 is provided in the cord storage space 9.
Since approximately half of the cord storage space 9 is inserted, the cord storage space 9 actually has a dimension B from the lower end of the cord adjuster 3 to the upper end of the ballast element 8. Therefore, in order to secure the cord storage space 9, it has conventionally been necessary to make the length A of the cylindrical body 2 longer than necessary, resulting in an increase in material costs.
Also, if a cord adjuster 3 is used that has a tightening piece 32 that automatically deforms to tighten the cord 1 when it is pulled in the opposite direction to the insertion direction of the cord 1, for example, this type of cord Since the material of the adjuster 3 is plastic resin, the cylindrical body 2
If the cord 1 is forcibly pushed into the cord storage space 9 without making the length A long, the cord 1 will be bent as shown by the broken line in FIG. 2, and the cord adjuster 3 will be damaged. It was hot.

Furthermore, conventionally, for example, as in the cord adjustment device disclosed in Japanese Utility Model Publication No. 48-29743, a cord storage case is provided on the top surface of the lighting equipment body, and a cord wrapping body integrally formed with the storage case allows the cord to be elastically held. A wide range of activities were being carried out.

This invention allows the conventional cord adjustment tool 3 to be used as is in such a cord adjustment device,
Moreover, the present invention aims to provide a lighting fixture in which the cord adjustment tool is covered and hidden by the cylindrical portion, and the shape is streamlined.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

Reference numeral 6 designates a disc-shaped lid body with a plurality of screw holes 65 on its peripheral edge, and a hollow cylindrical portion 61 protruding upward at the center. A through hole 63 for inserting a cord adjuster is provided in the section. Moreover, the inner diameter of this cylindrical portion 61 is the same as that of the cylindrical body 2.
The diameter is smaller than the inner diameter of the The cord adjuster 3 is inserted into the through hole 63.

This cord adjuster 3 has a cylindrical shape, and a locking flange 33 is integrally formed on the outer periphery slightly above the center of the cylinder, and a plurality of locking flange parts 33 are formed in the lower part of the cylinder by vertical grooves. A tightening piece 32 is formed in sections, and a protrusion 31 is integrally formed on the inside of the lower end of the tightening piece 32. Also, through hole 6
When the cord adjuster 3 is inserted into the cord adjuster 3 and pushed in until the collar 33 is locked, the cord adjuster 3
The lower end portion is located above the upper end of the cylindrical body 2, and even if the cord 1 is forcibly pushed in, the deformation of the lower end portion of the cord adjuster 3 is restricted by the inner wall of the cylindrical portion 61. 3 will not be damaged.

In the above configuration, the cord adjuster 3 is connected to the lid 6
Push the cylindrical part 61 into the through-hole 63 until the flange part 33 hits it, then insert the cord 1 into the cylindrical part of the cord adjuster 3 from the bottom to the top, and then insert the cord 1 into the cylinder part 6. A screw hole 65 is used at the upper end of the body 2, and the body 2 is fixed with a plurality of screws 5. In this state, the length of the cord 1 can be adjusted freely. When the length adjustment of the cord 1 is completed, when the cord adjuster 3 is pulled upward as shown in FIG. 3B, the cord 1 is tightened and fixed by the tightening piece 32 and the protrusion 31.

This idea is structured as above, so
The following effects occur.

(1) The conventional cord adjuster 3 can be used as is.

(2) Since the inner diameter of the lid cylindrical portion 61 is set within the deformation limit of the cord adjuster 3, damage to the cord adjuster 3 can be prevented.

(3) Since the cord adjuster 3 is covered and hidden by the lid cylindrical portion 61, it has a flat shape.

[Brief explanation of the drawing]

Figure 1 is a schematic cross-sectional view of a conventional hanging lighting fixture.
Figure 2 is a sectional view of the conventional cord storage part, and Figure 3 A and B are sectional views of the cord storage part of the present invention. Each is shown below. FIG. 4 is a perspective view of the lid of the present invention. In the figure, 2 is a cylinder, 3 is a cord adjuster, 31 is a protrusion, 32 is a tightening piece, 33 is a flange, 6 is a lid, 61
63 is a cylindrical portion, 63 is a through hole, and 8 is a stabilizer element.
Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] a lamp body 10, a cylinder body 2 with an open top end that is fixed to the upper surface of the lamp body and houses a ballast element 8 so as to form a cord housing space 9 in the upper part;
It is fixed to the upper end opening of this cylinder and has a through hole 6 in the center.
The lid body 6 has a cylindrical portion 61 provided with a cylindrical portion 61 projecting upward, and a cylindrical cord adjuster 3 which is inserted into the through hole 63 of the cylindrical portion 61 and has the cord 1 inserted thereinto. The cord adjuster 3 is provided with a locking collar part 33 on the outer periphery of the upper part of the cylinder, and a plurality of tightening pieces 32 are provided in the lower part of the cylinder inserted into the inside of the cylinder part 61 by vertical grooves. A protrusion 31 for tightening and fixing the cord is provided inside the lower end of the tightening piece 32, and the cord adjustment tool 3 is provided separately.
When the length of the push-in cord 1 is adjusted until the collar portion 33 is locked in the through hole 63 of the cylindrical portion 61, the lower end portion of the cord adjuster 3 is deformed by the inner wall of the cylindrical portion 61. A lighting device characterized in that the inner diameter of the cylindrical portion 61 is set so as to stay within the deformation limit of the cord adjuster 3 by regulating the deformation of the cord adjuster 3.