JPS6116568Y2 - - Google Patents

Description

[Detailed explanation of the idea] This idea relates to downlights.

Conventional downlights, as shown in Figure 1,
A long hole 2 is formed in the circumferential body 1a of the hat-shaped instrument body 1 in the axial direction, and a plate spring 3 bent at an obtuse angle is placed on the outside of the instrument body 1. Thumbscrew 4 through long hole 2 from inside
As shown in FIG. 2, the device body 1 is inserted into the ceiling hole 5 and the thumbscrew 4 is tightened to connect the other end of the leaf spring 3 extending diagonally downward and the device body 1.
Clamp the ceiling material 6 with the brim 1b of the fixture body 1.
I was starting to install it.

However, in a downlight with such a configuration, it is necessary to tighten the thumbscrew 4, making it difficult to fix the fixture body 1, and if the diameter of the fixture body 1 is small, it is difficult to reach inside the fixture body 1. It was impossible to fix it.

Therefore, downlights have been proposed that can solve these problems. As shown in FIG. 3, this downlight is constructed by fixing a vertical piece of a V-shaped bending plate spring 8 to the outer surface of a peripheral body 7a of a hat-shaped device main body 7, and extending an inclined piece obliquely upward from the lower end of the vertical piece.
By bending the inclined piece of the V-shaped bending leaf spring 8 and bringing it into close contact with the outer surface of the peripheral body of the instrument body 7, the instrument body 7 is inserted into the ceiling hole 9 as shown in FIG. To restore the leaf spring 8,
The ceiling material 10 is elastically held between the V-shaped bent plate spring 8 and the flange portion 7b of the appliance body 7, so that the appliance body 7 is fixed.

However, in a downlight with such a configuration, as shown in FIG. (broken line), and when the ceiling material 10 is considerably thick, there is a problem in that the V-shaped bent leaf spring 8 is plastically deformed beyond its elastic limit.

Therefore, the purpose of this invention is to provide a downlight that is easy to attach to the ceiling and can sufficiently accommodate differences in the thickness of ceiling materials.

An embodiment of this invention is shown in FIGS. 6 to 9. That is, as shown in FIGS. 6 and 7, this downlight has a hat-shaped device main body 11.
A constriction part 12 is provided at the lower end of the circumferential body part 11a of the V
The upper part of the vertical piece of the bent leaf spring 13 is attached to the device body 11.
is fixed above the constricted part 12 on the outer surface of the circumferential body part 11a, and by positioning the constricted part 12 behind the lower part of the vertical piece of the V-shaped bent plate spring 13, it acts as a spring escape recess, and the V-shaped bent plate spring The upwardly inclined piece 13 and the flange 11b of the appliance body 11 elastically support the opening edge of the ceiling material 14, as shown in FIG. 8 or 9. In this case, V
Since the constricted portion 12 of the bent leaf spring 13 acts as a spring escape recess, when the ceiling material 14 is clamped, not only the upwardly inclined piece but also the lower part of the vertical piece as shown in FIGS. It will bend according to the thickness of the ceiling material 14, and the difference in tearing strength due to the difference in the thickness of the ceiling material 14 will be reduced, and plastic deformation will not occur even if there is a large difference in the thickness of the ceiling material 14. It is possible to respond adequately without any problems.

To attach the V-shaped bent leaf spring 13 to the ceiling, the upwardly sloping piece of the V-shaped bent leaf spring 13 is bent and brought into close contact with the outer surface of the circumference of the main body 11, and the appliance body 11 is inserted into the ceiling hole 15. This is done by elastically clamping the periphery of the ceiling hole 15 between the upwardly inclined piece of the V-shaped bent leaf spring 13 and the collar 11b of the appliance body 11.

As described above, the downlight of this invention includes a hat-shaped appliance body, a vertical piece whose upper part is fixed to the outer surface of the peripheral body of the appliance body, and a vertical piece extending outward from the lower end of the vertical piece to the appliance body. a V-shaped bent leaf spring consisting of an upwardly inclined piece that elastically clamps the opening edge of the ceiling material with the brim portion of the body; and a spring relief provided at the lower rear of the vertical piece of the V-shaped bent leaf spring on the outer surface of the peripheral body of the appliance body. Since it is equipped with a recess for
It has the advantage of being easy to install on the ceiling and being able to adequately accommodate differences in the thickness of ceiling materials.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional downlight, Figure 2 is a sectional view when it is installed on the ceiling, Figure 3 is a perspective view of the proposed example, Figure 4 is a sectional view when it is installed on the ceiling, and Figure 5 is 6 is a perspective view of an embodiment of this invention, FIG. 7 is a sectional view thereof, and FIGS. 8 and 9 show installation on thin and thick ceilings. FIG. DESCRIPTION OF SYMBOLS 11... Instrument main body, 12... Constriction (spring relief recess), 13... V-shaped bent leaf spring, 14...
Ceiling material.

Claims (1)

[Scope of utility model registration request] A hat-shaped appliance body, a vertical piece whose upper part is fixed to the outer surface of the circumferential body of this appliance body, and a collar of the appliance body that extends outward from the lower end of this vertical piece to elastically close the opening edge of the ceiling material. A downlight comprising: a V-shaped bent plate spring consisting of a clamping upwardly inclined piece; and a spring relief recess provided at the lower rear of the vertical piece of the V-shaped bent plate spring on the outer surface of the circumferential body of the device main body.