JPH04107788U - Electric lifting device - Google Patents

Abstract

(57) [Summary] [Purpose] To avoid the need to replace the entire electric lifting device even if the wire used for lifting reaches the end of its life. [Structure] A wire 10 is wound around the lifting drum 9 connected to the output shaft of the lifting motor 8, with one end fixed, and the wire 10 is inserted into the lifting part 3 so as to be freely retractable and move upward. The lifting section 3 is inverted and suspended by two wires 10. A winding motor 12 and a winding drum 13 connected to the output shaft of the winding motor 12 are fixed to the fixed part 2, and the other end of the wire 10 is fixed to the winding drum 13. has been done.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

With this invention, even if the wire in the part used for lifting has reached the end of its life, the electric lifting device can still be used. This invention relates to an electric lifting device that does not require replacement as a whole.

0002

[Conventional technology]

For lighting equipment used in areas with high ceilings such as atriums, electric lifting The device is mounted on the ceiling so that the lamp can be lowered to the floor, making maintenance such as lamp replacement easier. There are known devices that make it easier to do this.

0003 The electric lifting device used in such cases has a motor for lifting and lowering the lamp. Attach the drum and unwind or pull the wire wrapped around the lifting drum. It is designed to raise and lower light fixtures suspended from wires. lighting equipment The hanging wire is changed direction by a pulley, and the fixed part of the electric lifting device is The elevating part of an electric elevating device with a light fixture attached to it is suspended from the ceiling.

0004 However, when the light fixture is raised and lowered many times, the wires become frayed due to friction. However, even if other parts are fine, it is necessary to replace the electric lifting device to extend the life of the wire. The replacement work was difficult because it had to be done at a high place.

[0005]

[Problem that the idea aims to solve]

The problem we are trying to solve is that the wire used for lifting has reached the end of its lifespan. By realizing an electric lifting device that does not require replacing the entire electric lifting device, be.

[0006]

[Means to solve the problem]

This invention consists of a lifting motor that feeds out and winds up the wire, and a lifting motor for this lifting and lowering. Connected to the output shaft of the motor, fixed one end of the wire, and wrapped the wire around it. A fixed part equipped with a lifting drum and fixed to the mounting surface, and a fixed part that hangs from this fixed part. The lamps are suspended from wires and raised and lowered by a lifting motor to attach lighting equipment. In an electric lifting device equipped with a lifting part, the wire can be inserted into the lifting part so that it can freely appear and retract. and suspend two lifting parts, one end of which is fixed to the lifting drum and the other end of the wire. A winding drum that fixes and winds this wire and outputs this winding drum. A winding motor that connects to the shaft and winds the wire is installed on the fixed part. Ru.

[0007]

【Example】

1 and 2 show an embodiment of the present invention, which will be explained below based on the drawings. .

[0008] This electric lifting device 1 has a fixed part that is attached to a mounting surface of a high ceiling such as an atrium. 2, and an elevating part 3 suspended from the fixed part 2, and the elevating part 3 is equipped with a lighting device. Tool 4 is suspended.

[0009] The fixing part 2 has a bolt inserted into the mounting hole 7 of the mounting bracket 6 provided at both ends of the square box-shaped housing 5. A bolt is inserted through the ceiling and fixed to a high ceiling such as an atrium. Inside the housing 5, there is a motor 8 and a lifting drum attached to the output shaft of this lifting motor 8. 9 has been delivered.

0010 A wire 10 is wound around the lifting drum 9 with one end fixed. Ru. The wire 10 is changed direction by a pulley 11 provided in the housing 5 and is suspended. is inserted into the elevating part 3 so as to be freely retractable, and is reversed upward within the elevating part 3, The other end is supported by the fixed part 2.

[0011] A winding motor 12 and a winding motor 1 are provided on the upper surface of the housing 5 of the fixed part 2. A winding drum 13 attached to the output shaft of No. 2 is fixed. and, A wire 10 is inserted through a wire insertion hole 14 drilled in the housing 5. The other end of the wire 10 is fixed to a winding drum 13.

0012 The lifting section 3 is suspended in the form of two wires 10 that are inverted inside the lifting section 3. The chain 15 with the lighting fixture 4 attached to the lower end is suspended from the lower end. Ru. The lifting section 3 is moved by the wire 10 due to its own weight and the weight of the lighting equipment 4. It is located at the midpoint of the wire 10 coming out from the fixed part 2, regardless of the length of the wire 10 coming out.

[0013] This electric lifting device 1 is wired as shown in FIG. The switch 16, the down switch 17 and the light switch 18 control the switch during normal use. It is familiar. When the lift switch 16 is turned on, the lift motor 8 is turned on by the power supply 19. The wire 10 is wound around the lifting drum 9 and restarted at the set top dead center. The power is turned off by the mitt switch. With the rise switch 16 turned OFF When the lowering switch 17 is turned on, the lifting motor 8 rotates in the opposite direction to the lifting direction, and the The yarn 10 is let out, the lifting section 3 is lowered, and the limit switch is activated at the set bottom dead center. It works and the power is turned off. The power to the lighting fixture 4 is supplied by the lifting part 3 connected to the fixed part 2. It is designed to be supplied by a contact mechanism that makes contact in a closed state. And the lifting section 3 is fully raised, the rise switch 16 and the fall switch 17 are turned OFF. When the lighting switch 18 is turned on and off, the lighting fixture 4 can be turned on and off using the lighting switch 18.

[0014] By the way, when the elevating section 3 is repeatedly raised and lowered as described above, the section that is being used The wire 10 becomes frayed in minutes and reaches the end of its life. In that case, lower the lifting section 3. After turning off the lowering switch 17, turn on the winding switch 20. Ru. Then, the winding motor 12 is connected to the power supply 19, and the wire 10 is connected to the winding motor 12. It is wound up on the reeling drum 13, and the elevating section 3 rises. At this time, the buzzer 21 is also connected to power supply 19, so you can see that it is different from the rise caused by normal operation. It is being done. When the lifting section 3 rises, the limit switch 22 is activated at the set top dead center. operates, the winding motor 12 is disconnected from the power supply 19, and the lifting section 3 stops rising. Stop. At this time, the wire 10 of the part that had been used for raising and lowering the lifting section 3 until then is wound up on the winding drum 13, and there is no longer any risk of fraying due to friction. Ru. Then, in normal operation thereafter, a new part is moved from the lifting drum 9. The wire 10 is fed out and used. The buzzer 21 activates the winding switch 20. It keeps ringing until you turn it off to prevent the possibility of erroneous operation.

[0015] In this electric lifting device 1, the lifting section 3 is repeatedly raised and lowered to remove the wires in the part that is in use. - When wire 10 becomes frayed and reaches the end of its life, wind up that part of wire 10. By doing so, a new portion of the wire 10 can be used for subsequent lifting. The lifespan of the electric lifting device can be extended, and there is no need to replace the electric lifting device at high places. Also, when the winding motor 12 is activated, the buzzer 21 sounds and normal lifting operation is performed. This has the effect of clearly indicating that the information is different and preventing the risk of erroneous operation.

[0016]

[Effect of the idea]

As explained above, the electric lifting device of the present invention has a At the end of the wire's life, by winding that part of the wire, the normal A new part of the wire can be used for operation, extending the life of the electric lifting device. This eliminates the need to replace electric lifting equipment at high places.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the state in which the electric lifting device of the present invention is used.

FIG. 2 is a wiring diagram showing how the electric lifting device of the present invention is used.

[Explanation of symbols]

1 Electric lifting device 2 Fixed part 3 Lifting section 4 Lighting equipment 8 Lifting motor 9 Lifting drum 10 wire 12 Winding motor 13 Winding motor 16 Rise switch 17 Lower switch 20 Winding switch

Claims (1)

[Scope of utility model registration request] [Claim 1] Equipped with a lifting motor that feeds out and winds up the wire, and a lifting drum that is connected to the output shaft of the lifting motor, fixes one end of the wire, and wraps the wire, and is fixed to a mounting surface. In an electric lifting device that includes a fixed part and a lifting part that is suspended by a wire hanging from the fixed part and is raised and lowered by a lifting motor to attach lighting equipment, the wire is inserted into the lifting part so that it can be raised and lowered. One end of the wire is fixed to the lifting drum, the other end is fixed to the winding drum for winding the wire, and the winding drum is connected to the output shaft to wind the wire. An electric lifting device characterized by having a winding motor installed in a fixed part.