JPS593453Y2 - lift device - Google Patents

Description

[Detailed description of the invention] This invention relates to a lifting device used for high ceiling lighting equipment, etc.

Lighting fixtures installed in atriums and the like are long and have a high hanging position, but maintenance such as lamp replacement must be performed easily and safely.

For this reason, conventional lighting equipment of this type is
It was like the picture.

That is, in the lighting equipment shown in FIG. 1, pulleys 2 and 3 are attached to a ceiling 1, a cord 4 is hung between the pulleys 2 and 3, and is run along the ceiling 1 and a wall 5, and a winder 6 attached to the wall 5 is used to provide lighting. Raise and lower the appliance 7.

In the one shown in FIG. 2, an elevating device 8 is installed in the ceiling 1, and a lighting fixture 7 is attached to this to raise and lower it.

The one in FIG. 3 uses a simple cord reel 9, and the up and down operations are performed by a person riding on a stand 10.

11 is a curl cord.

However, in the case of Fig. 1, the cord impairs the aesthetic appearance and is not easy to install, and in the case of Fig. 2, the equipment becomes large-scale, and in the case of Fig. 3, this method of hanging equipment is difficult. It is not suitable for long or heavy instruments, and because it is semi-fixed, it lacks safety.

Therefore, the object of this invention is to provide a lifting device that is excellent in both safety and aesthetics, is easy to install, and can be lifted and lowered safely and easily.

A first embodiment of this invention is shown in FIGS. 4 to 8.

That is, this lifting device is constructed by bolting the mounting plate 13 to the ceiling 12, hanging the hanger 14 on the mounting plate 13, passing the shaft 16 laterally through the upper end of the hanging pipe 15, and hanging the shaft 16 on the hanger 14. A pipe 15 is hung swingably, and a flange 18 is attached with a fixing nut 17 to cover the ceiling.

A thread is formed at the lower end of the hanging pipe 15, and a joint fitting 19 is screwed into the joint fitting 19 (details in Fig. 5).A horizontal hole is formed in the joint fitting 19, and the upper end of the storage pipe 20 is externally fitted into the joint fitting 19. The hanging pipe 15 and the storage pipe 20 are integrated by penetrating and connecting them with fixing bolts 21.

A cover 22 is placed on the upper end surface of the storage pipe 20.

Note that 21a is a bag nut. Inside the storage pipe 20, there are two slide pipes 20a that overlap concentrically.
, 20 b is slidably fitted, and the storage pipe 20
An inward locking portion 23 is formed at the lower end of the outer slide pipe 20H, and an outward locking portion 24 is formed at the upper end of the outer slide pipe 20H so that the outer slide pipe 20a engages with each other at the lowest position. An inward locking portion 25 is formed at the lower end of the outer slide pipe 20a, and an outward locking portion 26 is formed at the upper end of the inner slide pipe 20b so that the pipes 20b engage with each other when the pipe 20b descends; Furthermore, a pair of screws (hooks) 27, 27' are provided in the horizontal direction of the flat end of the inner slide pipe 20b, and a pair of hook-shaped grooves 28 are formed in the lower end of the storage pipe 20 opposite to these. (Only one side is shown in the figure), the slide pipe 20 a is stored in the storage pipe 20 by hooking the screws 27 and 27' into the groove 28 as shown in FIG.
20b is locked in the highest position.

A threaded groove is further formed at the lower end of the inner slide pipe 20b, and a joint fitting 30 is sandwiched between the two nuts (29 and 29'), and the upper end of the lamp post 31 is passed through the joint fitting 30 and fixed. A shaft 32 passes through them laterally and connects them to each other.

Further, a wire winder 33 is attached to the fixed shaft 32, and the tip of the wire 34 is attached to the inner slide pipe 20.
It is connected to the fixed shaft 21 through b.

There is also a hanging pipe inside the sliding pipe. 20
b and the inside of the light fixture support 31 from the ceiling 12 to the light fixture 3.
A curl cord 36 connected to 5 is passed through.

The lamps 35 are attached to the lamp support 31, and the lower end of the lamp support 31 is provided with a grip operation rod 37 for lifting and lowering operations.

Next, the operation of this lifting/lowering operation will be explained.

The hanging installation height of the lamp 35 is adjusted by the length of the hanging pipe 15.

When pulling down the lamp 35, twist the pair of screws 27 and 27' out of the key groove 28, grasp the grip operation rod 37, and pull it downward.

As a result, the inner slide pipe 20b lowers and locks at the lower end of the outer slide pipe 20a, and the outer slide pipe 20a lowers and locks at the lower end of the storage pipe 20 and stops. 9 to 10).

On the other hand, during the lowering operation, the wire 34 of the wire winder 33 is unwound, and the wire winder 33 supports the weight of the lamp.

Since the lifting operation and locking are performed in the reverse order as described above, this lifting device is able to handle heavy lighting as it is normally suspended by a hanging pipe 15, compared to a hanging method using only a wire winder. There is no danger of the instrument falling, and rotation of the instrument is also prevented.

Compared to hanging using only the slide pipe method, the internal wire winder 33 allows the weight of the device to be held, and the operability and safety when raising and lowering it are very good. (When the lamp is removed, the entire weight of the lamp rests on the arm), and the lamp can be raised and lowered by operating the operating rod 37 at the lower end of the lamp support 31, which is located away from the groove 28, making the operation safe and easy.

You can also adjust the height when using the light.

In addition, it has an excellent appearance and is easy to install.

A second embodiment of this invention is shown in FIGS. 11 to 14.

That is, in this lifting device, in the first embodiment, the hanging pipe 15 and the storage pipe 20 have the same diameter, and there are an upper hanging pipe 38 and three lower hanging pipes, which are connected to each other by a joint pipe 40. At the same time, a wire holding plate 41 is placed on the upper end surface of the lower hanging pipe 39 (first
(Details in Fig. 2), the wire 34 is fixed to the wire holding plate 41 by tying a knot at its tip.

The upper hanging pipe 38 is formed with a large number of horizontal holes 42 at regular intervals in the axial direction, and the upper hanging pipe 38 is cut according to the hanging height of the lamp 35. A horizontal hole 42 at the upper end allows the shaft 16 in the ceiling to pass through.

In addition, one slide pipe 43 is attached to the lower hanging pipe 3.
9, the wire winder 33 is attached to the joint fitting 30 with a shirt I-30a and covered with a cover 44, and the lamp post 31 is connected with a shirt I-30b at the bottom of the cover 44.

Further, the curl cord 45 is wrapped around the outer surfaces of the hanging pipes 38 and 39.

The rest is the same as the first embodiment.

With this configuration, in addition to having the same effect as the first embodiment, since the hanging pipe is divided in the center, the packaging can be made smaller, and the position where the wires are tied can be brought to the center. Although the hanging pipe is cut when adjusting the hanging height, the wire part is not affected and workability is good (no need to adjust the length of the wire itself).

Further, since the end face of the pipe can be used to stop the wire holding plate 41, no machining is required for this purpose.

As described above, the lifting device of this invention has a slide pipe that holds a light fixture passed through the hanging pipe suspended from the ceiling so that it can be raised and lowered freely, and a wire winder is installed inside, and the upper end of the slide pipe and A locking part that locks each other is provided at the lower end of the hanging pipe, and a hook part that locks each other is provided at the lower end of the slide pipe and hanging pipe, which improves the safety and aesthetics of lifting and lowering operations, and makes installation work easy. Moreover, it has the effect of making raising and lowering operations safer and easier.

[Brief explanation of drawings]

1 to 3 are schematic diagrams showing a conventional lifting device, FIG. 4 is a half-sectional view of the first embodiment of this invention, FIG. 5 is a partially enlarged half-sectional view thereof, and FIG. 6 is another example. 7 is a partial side view thereof, FIG. 8 is a side view showing the locked state of the screw, FIGS. 9 and 10 are side views showing the raised and lowered state, and FIG. The figure is a half-sectional view of the second embodiment.
FIG. 12 is an enlarged half-sectional view of a portion thereof, FIG. 13 is a partially exploded perspective view of FIG. 11, and FIG. 14 is an enlarged half-sectional view of another portion of FIG. 11. 15.38,39... Hanging pipe, 20
a, 20 b, 43...-slide pipe, 2
3.25...Locking part, 24.26...
Locking part (holding part), 27.27'... Screw (hanging part), 28... Key groove (hanging part), 28...
...key groove (engaging means), 33 ... wire winder, 40 ... joint pipe, 41.
...Wire holding plate.

Claims (1)

[Scope of utility model registration request] A hanging pipe whose upper end is fixed to the ceiling and whose lower end is provided with a locking part projecting in the radial direction and a rotating catch receiving part, and a hanging pipe which is fitted into the hanging pipe so as to be able to rise and fall freely and the locking part is at the lowest position. a slide pipe provided with a retaining portion that engages with the hook and a hook portion that is hooked on the hook receiving portion at the highest position; an object to be lifted and lowered that is fixedly suspended from the lower end of the slide pipe; and a wire winder attached to either one of the hanging pipes and fixing the tip of the wire to the other.