JPS5843136Y2 - Lifting device for lighting equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a lifting device for lighting equipment.The purpose of this invention is to install a simple brake on the lighting equipment body equipped with a hanging string retractor, and to gently pull the drawstring. An object of the present invention is to provide a lifting device for a lighting fixture that can raise a lighting fixture body.

Conventionally, a so-called lifting device for positioning a lighting fixture at a desired height is as shown in FIG. When the lighting fixture 4 is fixed at a position, and the handle 5 of the lighting fixture 4 is raised and lowered, and the handle 5 is released at the desired position, the weight W of the lighting fixture and the winding force F of the winding device 2 balance out, and the lighting fixture 4 comes to rest. Things are common.

In this case, when starting to move from a stationary state, the weight of the lighting equipment W
The product of the coefficient of static friction μ of the hanging cord 3 in the retractor 2 acts as a force to maintain the stationary state, so as the weight W increases, the force required for raising and lowering increases in proportion.

In particular, if the lifting force is large when the weight is large, it will be difficult to determine the uppermost position, which may cause problems such as the lighting fixture 4 and the retractor 2 colliding with each other or coming to a standstill before reaching the uppermost position. Ta.

The present invention was made in view of the above reasons.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 4.

Figure 2 shows the lighting fixture when it is installed on a structure such as a ceiling, and Figure 3 shows the main parts. It is.

Reference numeral 7 denotes a hanging cord retractor attached to the lighting equipment main body 6, which has a retracting force greater than the weight of the equipment main body 6, and lifts the equipment main body 6 to the highest position if the brake is released by the brake described later. It is something that can be done.

Reference numeral 8 denotes a hanging cord, which is wound around the retractor 7 and whose other end is attached to a structure 9 such as the ceiling.

10. 10 is a brake piece attached to the device body 6 10', 10
' is a fulcrum and is arranged symmetrically to the suspension string 8, and the swinging end 11.11 is connected to the coil spring 1, for example.
2, etc., to press the suspension string 8 and brake it.

A drawstring 13 is also attached to the other swinging end 12.12 of the brake piece 10.10 and hangs down below the instrument body 6.

When this drawstring 13 is pulled downward, the brake piece 10.10 receives a swinging force in the opposite direction to the direction in which it is energized, and the swinging end 1
1.11 is released from the state in which it was pressing the hanging cord 8, and eventually these energized brake pieces 10.
10 and the drawstring 13 act as a brake for the winder 7 by pressing and releasing the hanging string 8.

FIG. 4 shows the operation of the present invention. At point a, the drawstring 13 is not pulled, so the rake piece 10.10
Due to the spring of the coil spring 12, the swinging end 11.degree. 11 presses the hanging cord 8, the brake is released, and the winding device 7 stops winding.

Therefore, the instrument main body 6 is positioned at a desired height, but even in this state, the winding force of the winding device 7 is not enough to reach the swing end.
1 and 11 and the hanging cord 8.

At this pressing point, the swinging end 11.11 acts to further strengthen the pressing, that is, the braking, so that the instrument body 6 can be reliably held still.

At b, when the drawstring 13 is pulled, the brake pieces 10, 10 swing in the opposite direction to the swinging direction by the coil spring 12, and therefore, the swinging end 11° 11 releases the pressure of the hanging string 8 and performs braking. is released, the retractor 7 retracts the hanging cord 8, and when the user releases the pull cord 13 at the desired position, the instrument main body 6 comes to rest in the state shown in a.

On the other hand, when lowering the instrument body 6, the instrument body 6 is pulled down against the winding force of the winder 7.
3 may be used to pull down the instrument body 6.Also, even if the pull string 13 is not pulled, the pressure, that is, the braking, will be weakened at the pressure point between the swinging ends 11, 11 and the hanging string 8. The instrument main body 6 can be lowered with approximately the same pull-down force as the conventional one.

The present invention provides a lifting device for a lighting equipment that includes a lighting equipment main body 6, a hanging cord retractor 7 attached to the lighting equipment main body 6, and a brake that brakes the winding of the hanging cord retractor 7.
The brake consists of two brake pieces 10.10 which are swingable on the luminaire main body 6 and are arranged symmetrically on the suspension string 8, and the brake pieces 10.10 are attached to the swing end 11,
11 is elastically energized to press and brake the suspension string 8, and a drawstring 13 is attached to the other swinging end 12.12, and by pulling the drawstring 13, the pressure is released. Since the braking is released when the lighting device is raised, a lifting device for the lighting device can be obtained that allows the lighting device to be positioned at a desired height by simply pulling the drawstring 13 lightly when raising the lighting device, and also allows the lighting device to be placed in the highest position. Conventionally, when lifting the lighting equipment, the lighting equipment itself was lifted with a force corresponding to its weight, so there was a risk of accidentally colliding with the winder or structures above the lighting equipment, causing damage to the lighting equipment. Winder 7
Safety is increased because it can be stopped at the highest position, and when the lighting equipment is positioned at the desired height, the winding force of the winding device acts so that the braking by the swinging end 11.11 becomes stronger. It also has the effect of being able to stand still reliably.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional example, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a front view, Fig. 3 is a perspective view of the main part, and Fig. 4 is a part showing the operation. It is a front view. 6...Lighting equipment body, 7...Hanging string winder, 8...Hanging string, 10.10...
Brake piece, 13... Pull string.

Claims (1)

[Scope of utility model registration request] In a lifting device for a lighting equipment, which includes a lighting equipment body, a hanging cord retractor attached to the lighting equipment body, and a brake that brakes the winding of the hanging cord retractor, the brake is configured to swing on the lighting equipment body. It consists of two brake pieces that are freely movable and are arranged symmetrically on the hanging cord, and the swinging end of the brake piece is resiliently energized so that it presses the hanging cord and brakes it, and the other swinging 1. An elevating device for a lighting equipment, characterized in that a drawstring is attached to the end, and by pulling the drawstring, the pressure is released and the braking is released.