JPH0584603B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in lifting lighting fixtures, and more particularly to a device that can reliably support square lifting lighting fixtures at a predetermined location such as a ceiling surface.

[Conventional technology and its problems]

BACKGROUND OF THE INVENTION Conventionally, elevating lighting fixtures are often used for lighting fixtures installed on relatively high ceilings such as gymnasiums and hotel lobbies in order to easily and safely perform maintenance and inspection of the lighting fixtures or replace lamps.

As shown in FIG. 6, for example, an elevating lighting device has a fitting rod 5 which is supported by a wire 3 to a fitting cylinder 2 provided on an elevating base 1, and which supports a lighting fixture 4 at its lower end. However, the lighting equipment 4 is supported.

However, according to this device, if the bottom shape of the lighting fixture is circular, there is no need to specify the orientation of the lighting fixture with respect to the ceiling surface, but if the bottom shape of the lighting fixture is square, it is not necessary to specify the orientation of the lighting fixture. There is a need to.

In addition, if the fitting rod and fitting receiver are long, the rectangular lighting fixture can be pulled straight up, but if it is a recessed type, there are restrictions on the dimensions of the building's ceiling, so the structure shown in Figure 6 is However, there is a drawback that the vertical dimension of the entire vertical lighting device cannot be reduced and cannot be implemented.

[Purpose of the invention]

The present invention was invented in view of the above points, and it is possible to easily specify the direction of the lighting equipment, and furthermore, the vertical dimensions of the fitting receiver and the fitting rod are made small, so that the lighting device for lifting and lowering can be made thin. The purpose of the present invention is to provide a lighting device for lifting and lowering.

[Means for solving problems]

The present invention will be explained below with reference to FIGS. 1 to 5. In the figure, 11 is the main body of the vertical lighting device, 12
13 is a winding drum rotatably provided inside the lifting device main body 11, and 13 is a guide provided at the lower end of the lifting lighting device main body 11, with a vertically elongated guide groove 14 inside.
A pair of them are arranged at corresponding locations with a predetermined interval.

15 is a cylindrical body provided at the lower end of the guide body 13 as shown in FIG. The structure is designed for the inclined slide part 16, and the guide groove 14 of the guide body 13 and the cylindrical body 15
and the sloping top of the slide portion 16.

Further, the slide portion may be configured to have either an arcuate surface or a linear surface as long as it is symmetrical. 1
Reference numeral 7 denotes a pair of protrusions provided on the outer wall of the upper support body 18 that supports the lighting equipment. It is configured to engage and move in the guide groove 14 of.

Reference numeral 19 denotes a plurality of support rods disposed on the lower surface of the lifting illumination device 11 and inside the guide body 13, for example, four support rods are provided at equal intervals.

20 is a slide plate provided with through holes 21 at locations corresponding to the plurality of support rods 19 and has a hole 22 in the center through which a fitting rod penetrates; 23 is a winding drum 1;
2 is a wire supported at one end, 24 is a fitting rod supported by the wire 23, and 25 is a fitting rod 24.
A support 26 for supporting the light source is a socket for mounting a light source, and is fixed to a socket mounting plate 31 provided on the lower surface of the support 25. Reference numeral 27 is a shade with a rectangular lower surface supported by the support body 25, and is configured to be movable up and down. 28 is a socket tension spring, and when the shade 27 hits the ceiling surface, for example,
It is configured to extend slightly to absorb the gap between the shade 27 and the ceiling surface.

Reference numeral 29 denotes a rotating body provided on the outer wall of the upper support body 18, and is configured to fit into the guide groove 14 of the guide body 13 to prevent the lighting fixture from shaking when going up and down.

30 is a fixed contact fixed to the fixed contact mounting body 31, and 32 is a movable contact fixed to the support 25, which are disposed at locations corresponding to the fixed contacts 30.

[Action of the invention]

In the lifting lighting device having the above structure, when the winding drum 12 is rotated and the wire 23 is wound up, the fitting rod 24 is inserted into the central hole 2 of the slide plate 20.
The fitting rod 24 is guided to a predetermined position, and the protruding portion 17 is inserted along the sliding portion 16 of the cylindrical body 15.
moves, the rear rotating body 29 engages with the guide groove 14 of the cylindrical body 15, and the direction of the lighting fixture is specified,
be lifted directly above.

In addition, when lowering the lighting equipment, take up the winding drum 1.
2 is reversely rotated, the lighting fixture descends directly below in a state where the rotating body 29 is inclined to the vertical groove of the cylindrical body 15, and then the lighting fixture descends to the ground.

〔Effect of the invention〕

As described above, the present invention provides a pair of guide bodies having vertical guide grooves at locations corresponding to the bottom surface of the main body of the lifting device, and also provides a cylindrical body at the bottom end of the guide body, and divides the bottom surface of the cylindrical body. Divide into two around the line,
Each of the left and right sides is configured with a sliding part that slopes upward as it moves away from the separation line, and the guide groove of the guide body is aligned with the top of the sliding part of the cylindrical body,
In addition, the projecting part provided on the outer wall of the upper support body of the lighting fixture that moves up and down moves along the slope of the sliding part, and further engages with the guide groove of the guide body to move up and down. Since the protruding part moves along the guide grooves of the pair of guide bodies, the direction of the lighting fixture can be easily identified.Moreover, it can be pulled up straight upwards with little shaking, making it easy to use when the ceiling space is small and the lighting fixture is rectangular. It is possible to reliably support multiple lighting fixtures in the same direction.

Further, since the sliding portion of the cylindrical body is configured to have a symmetrical inclined surface, the protruding portion reliably moves along the sliding portion and engages the guide groove of the cylindrical body, which has the advantage of ensuring reliable operation.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the lifting lighting device according to the present invention, showing a state in which the lighting fixture is supported. Figure 2 is a cross-sectional view when the lighting equipment is slightly lowered from Figure 1, Figure 3 is a partial cross-sectional view of Figure 1, Figure 4 is a cross-sectional view of the main part of the plan view of Figure 1, and Figure 5 is a cross-sectional view of the main part of the plan view of Figure 1. The figure is a perspective view of the main part of FIG. 1, and FIG. 6 is a front view of the conventional lifting lighting device. 11... Lifting device main body, 12... Winding drum, 13
...Guiding body, 15... Cylindrical body, 27... Shade.

Claims (1)

[Claims] 1. A wire 23 supporting a lighting device at the lower end is wound around a winding drum 12 provided inside the elevating lighting device main body 11, and the wire 23 is supported so as to be unwound, allowing the lighting device to be lifted and lowered. In the freely configured vertical lighting device, a pair of guide bodies 1 each having a vertically elongated guide groove 14 at a corresponding location on the lower surface of the vertical lighting device main body 11 are provided.
3 and a cylindrical body 15 is provided at the lower end of the guide body 13, and the lower surface of the cylindrical body 15 is aligned with the dividing line A-
It is divided into two parts with A' as the center, and each of the left and right sides is configured with a slide part 16 that slopes upward as it moves away from the dividing point, and has a through hole 21 at a location corresponding to the support rod 19. Hole 2 into which the fitting rod fits
A slide plate 20 having a guide body 13 is disposed, and a slide plate 20 having a
The guide groove 14 of the cylindrical body 15 is aligned with the top of the slide part 16 of the cylindrical body 15, and the protrusions 17, 17 provided on the outer wall of the upper support body 18 of the lighting fixture that moves up and down are aligned along the slope of the slide part 16. The lighting device for lifting and lowering is configured to move along the guide body 16 and further engage the guide groove 14 of the guide body 16 to move up and down.