JPS6019298Y2 - lift device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a lifting device for lighting equipment and the like.

Conventionally, there have been devices in which the device can be raised and lowered by rotating multiple arms (for example, Utility Model No. 48-36677).
issue).

However, if the lifting range is increased, the arm becomes longer, so it is necessary to increase the width of the device.

Furthermore, since the arm is fixed with screws, there is a drawback that the screws loosen due to repeated lifting and lowering, allowing it to fall naturally.

Therefore, the object of this invention is to provide an elevating device that allows easy elevating and lowering operations, can set the elevating range regardless of the width, and does not naturally descend due to repeated elevating and lowering.

A lighting fixture to which an embodiment of this invention is applied is shown in FIGS. 1 to 3.

That is, this lighting fixture is attached to the ceiling 1 by inserting the ceiling cylindrical holder 3 into the embedded hole 2 of the ceiling 1 and using the mounting spring body 4.

A pair of vertical guides 5 are mounted inside the holding body 3 so as to face each other.

These vertical guides 5 are shaped like channels having a U-shaped cross section as shown in FIG. 2, and have webs 5a extending inward, and upper regulating recesses 6 tapered upward at predetermined positions above the webs 5a. By forming the web 5
A lower regulating recess 7 is formed at a predetermined position below a by cutting and raising the lower regulating recess 7 in a downwardly tapered manner.

Further, a pair of frame attachment springs 9 are extended from the lower end opening 8 of the holder 3, and a frame 10 is engaged with the frame attachment springs 9 by covering the hole edge of the ceiling 1.

On the other hand, the device body 11 is attached to the vertical piece 12 of the L-shaped bent metal fitting 12.
The horizontal piece 12b of the metal fitting 12 is attached to the flange 14 by the cylindrical shaft 14a so as to be rotatable in the horizontal direction, and the center part of the flange 14 is attached to the sliding body. Install it on 15.

The sliding body 15 is a channel bent into a U-shape, and the rising pieces 16 on both sides are slidably fitted onto the vertical guide 5.

Further, a hole 17 is formed in the center of the rising piece 16, and the hole 17 is
A spring body 18 that protrudes in a dogleg shape and presses against the vertical guide 5 is attached.

Note that the electric wire 19 is connected to the socket through the top of the holder 3, the sliding body 15, the flange 14, and the cylindrical shaft 14a.

Figure 1 shows this lighting fixture as a downlight.

In this case, the spring body 18 of the sliding body 15 is engaged with the upper regulating recess 6 of the vertical guide 5, and movement upward from this position is stopped by the upper edge 6a of the upper regulating recess 6 and is prevented.

On the other hand, if you want to turn this state into a spotlight, do the following.

First, pull down the instrument body 11.

At this time, the spring body 18 is retreated along the taper 6b, so that it can smoothly move downward, and the sliding body 15 descends along the vertical guide 5.

When the spring body 18 reaches the lower regulating recess 7, the spring body 18 is restored and engaged with the lower regulating recess 7, and further downwardly, the spring body 18 engages with the lower edge 7a of the recess and is therefore regulated.

In this state, by rotating the L-shaped fitting 12 horizontally, loosening the knob screw 13 and rotating it vertically, spot illumination can be performed in a predetermined direction.

Note that when returning from this state to a downlight, the spring body 18
can move backward along the taper 7b of the lower regulating recess 7, so it can smoothly slide upward.

As described above, in the lifting device of this invention, an upper regulating recess and a lower regulating recess are formed in the vertical guide, and a spring body is provided protruding from the sliding body that slides on the vertical guide to engage with the recess. This allows for easy lifting and lowering operations, and there is no need to increase the outer diameter of the device even if the lifting range is increased.Furthermore, since the spring body locks into the recess, the sliding body naturally descends as it deforms and lifts. This has the effect of ensuring that it is held in place without any problems.

The disclosed technology of a lifting device for a lighting fixture or the like will be described below.

(Purpose) The purpose is to make it easy to move up and down with a simple configuration.

(Structure) A lighting fixture to which an embodiment of the disclosed technology is applied is shown in FIGS. 4 to 9.

That is, in this lighting fixture, the flange 2 of the fixture body 20
1, two guide posts 22 are installed upright, and the top 24 of the cylindrical instrument holder 23 is connected to an upper top plate 25 and a lower top plate 26.
A spring body 28 compressed into a horizontal U-shape is fitted between the upper top plate 25 and the lower top plate 26, and the upper and lower pieces of the spring body 28 are Holes 29, 30 through which the guide posts 22 pass are formed in the holes 27, 29, 30, and the guide posts 22 are passed through the holes 27, 29, 30.

In the figure, numeral 31 is a holder mounting bracket, 32 is an L-shaped bracket, and its horizontal piece 32a is rotatably attached to the flange 21 by a cylindrical shaft 33, and its vertical piece 32b is attached to the instrument body 20 vertically via a knob shaft 34. It is mounted so that it can rotate freely.

Further, 35 is an electric wire, 36 is a ceiling, 37 is a frame, and 38 is a frame attachment spring.

(motion) Figure 4 shows a case where it is used as a downlight.

In this case, the edges of the holes 29 and 30 of the spring body 28 bite and lock into the guide post 22 due to the spring action, and the instrument body 20
is supported in that position.

FIG. 5 shows a case where a spotlight is used.

In this case, when attempting to pull down the instrument main body 20 from the state shown in FIG. 9
As the guide post 22 is bent as shown in the figure, the hole 29 is displaced laterally and the guide post 22 can slide, and the upper end 22a of the guide post 22 is stopped by the upper top plate 25.

In this state, when the knob shaft 34 is loosened, it can be rotated vertically in a predetermined direction, and when the L-shaped metal fitting 32 is rotated horizontally, the instrument main body 20 is oriented in any horizontal direction, allowing spot illumination.

Further, when moving up from a spotlight to a downlight, the spring body 28 can move the guide post 22 as shown in FIG. 8 in a manner opposite to that shown in FIG. 9.

(Effects) As described above, in the lifting device of the disclosed technology, a horizontal U-shaped spring body is fitted between two top plates, and the guide post of the lifting object is passed through the hole in the top plate and the spring body. The simple configuration has the advantage that the lifting object can be easily raised and lowered, and moreover, it can be stopped at any desired position.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a lighting fixture to which an embodiment of the invention is applied, Fig. 2 is an exploded perspective view of its main parts, Fig. 3 is a cross-sectional view of its main parts, and Fig. 4 is a cross-sectional view of an embodiment of the disclosed technology. A cross-sectional view of the applied lighting equipment, Figure 5 is a cross-sectional view of the spotlight in use, and Figure 6 is a cross-sectional view of the applied lighting equipment.
The figure is a perspective view of the main part, and FIGS. 7 to 9 are side views of the spring body in its operating state. 5...Vertical guide, 6...Upper regulation recess, 7...Lower regulation recess, 15...Sliding body, 18... Spring body.

Claims (1)

[Scope of utility model registration request] a pair of vertical guides facing each other, a sliding body slidably installed between these vertical guides, an upper regulating recess formed at a predetermined position in the upper part of at least one of the vertical guides, and a lower regulating recess formed at a predetermined position in the lower part; and a spring body that comes into elastic contact with the vertical guide provided on the sliding member and engages with the upper regulating recess or the lower regulating recess by sliding of the sliding member. Lifting device with.