JPS63202592A - Operating driving device for electric winder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an operating device for an electric hoisting device such as an electric chain hoist or an electric hoist.

[Prior art]

Conventionally, as an operating device for an electric hoisting device, the
As announced by Publication No. 1-152569,
A load hanging device is connected to the hanging end of the load lifting strip hanging from the electric hoisting device body via the switch box body, and a grip protruding laterally from the switch box body. 2. Description of the Related Art There is known an operating device having a structure in which a push button for a hoisting switch and a push button for a hoisting switch are provided.

[The ode that the invention attempts to solve]

However, in the case of the above-mentioned conventional operation control device for an electric hoisting device, the push button of the switch is provided on the grip that protrudes laterally from the switch box body, so it is difficult to press the switch by grasping the grip. During operation, a vertical force is applied to the grip, which may cause the switch box body and the luggage hanger to tilt. It becomes difficult to do.

[Purpose and structure of the invention]

The object of the present invention is to provide an operating device for an electric hoisting device that can advantageously solve the above-mentioned problems. The upper part of a support member 5, which includes a switch box 3 and a vertical holding cylinder 4 connected to the lower part thereof, is connected to the hanging end of the hanging load lifting strip 2. A load hanging device 6 is connected to the lower part, and a grip 7 is provided on the outer layer of the holding wI4, and a hoisting switch SU and a hoisting switch S are attached to the switch box B.
D and D are provided at intervals in the lateral direction.

〔Example〕

Next, the invention will be explained in detail using fully illustrated examples.

1 to 3 show an embodiment of the present invention, in which an upper hook 8 for hanging is connected to the upper part of an electric hoist main body 1 consisting of an electric chain hoist main body, and The upper part of the cable support member 9 is connected by a delt 10 to the hanging end of the load lifting strip 2 made of a load chain hanging from the load sheave of the upper device main body 1, and the lower center of the cable support member 9 The upper part of the switch box 6 is screwed and connected to a male threaded shaft 11 provided in the switch box 6, and the upper end part of a vertical holding cylinder 4 having a circular cross section is fixed by welding to the central lower part of the switch box 6. 9, the switch box 3, and the holding cylinder 4 constitute a support member 5.

A load hanging device 6 consisting of a hook is provided at the lower end of the holding tube 4.
are screwed together, and a rubber cylindrical grip 7 having a large number of annular anti-slip protrusions provided at intervals in the vertical direction is fitted on the outer surface of the holding cylinder 4, and the adhesive Further, on the front plate of the switch 3, there is a winding switch SU consisting of a two-stage pushbutton switch.
and a lowering switch SD consisting of a two-stage push-down switch are installed at a small interval in the lateral direction.

On the surface of the push button 12 of the hoisting switch SU, a low speed hoisting mark 13 consisting of a short hexagonal mark with an upward apex corner and a long vertical direction, and a long hexagonal mark with an upward apex corner and a long vertical direction. High speed hoisting mark 1 consisting of hexagonal marks
4 is displayed, and on the surface of the lowering switch SD push button 15, there is a low speed lowering mark 16 consisting of a short hexagonal mark having a downward apex corner and a short vertical length, and a downward apex corner. A high-speed lowering mark 17 consisting of a hexagonal mark with a long vertical length is displayed, and the hoisting switch SU and lowering switch SD are connected to the electric hoisting device via a telescopic spiral cable 18. The shipping elevating strip 2 is inserted into the spiral portion of the cable 18.

When using a DC motor as the motor in the electric hoisting device main body 1, the power source voltage can be converted by changing the resistance value of the power source by operating the two-stage hoisting switch SU or the hoisting switch SD. Converts hoisting and hoisting speeds. In addition, when using AC parent-child motors with different rotational speeds as the electric motors in the electric hoisting device main body 1, the changeover switch is controlled by operating the two-stage hoisting switch SU or lowering switch SD, and the motor Perform switching operation. The means for switching the resistance value of the power supply using a two-stage switch and the means for controlling the changeover switch for the AC parent-child motor are well known, and detailed explanations thereof will be omitted.

When the driver holds the grip 7 with one hand and presses the push button 12 of the soil hoisting switch SU to the first position with the thumb of the other hand, the electric hoist starts low-speed hoisting operation. When the hoisting switch SU is started and the pushbutton 12 of the hoisting switch SU is pushed all the way to the second stage position, the electric hoisting device is switched from low-speed hoisting operation to high-speed hoisting operation, and then the pushbutton 1
2 to the first stage position, the electric hoisting device is switched to low-speed hoisting operation, and when the thumb is released from the pushbutton 12, the pushbutton 12 returns to the initial position and each of the hoisting switches SU The contact is turned off and the operation of the electric hoist is stopped.

Further, while the driver is holding the grip 7 with one hand, the push button 1 of the lowering switch SD is pressed with the thumb of the other hand.
5 to the first stage position, low-speed lowering operation of the electric hoisting device is started, and when the lowering switch SD is pressed down, the lowering switch 1 is pressed.
5 to the second stage position, the electric hoisting device switches from low-speed hoisting operation to high-speed hoisting operation, and when the push button 15 is returned to the first position, the electric hoisting device switches to low-speed hoisting operation. When the operation is switched to lower operation and the thumb is released from the push button 15, the push button 15 returns to the initial position and the lowering switch S is activated.
Each contact of D is turned off, and the electric hoisting device is stopped.

In the case of the electric hoisting device equipped with the two-speed operation control device of the above embodiment, high-speed operation is required during lifting and lowering of empty boxes, lifting and lowering of the load hanging device 6 during no-load operation, and during lifting and lowering. It is also possible to perform low-speed operation at the start of lifting a load, at the end of the lifting movement of the load, and when the load to be lowered is seated.
When unloading, if the suspended load is deviated laterally, the load can be easily lowered to the specified position by performing low-speed lowering operation while pressing the grip 7 laterally. can.

When carrying out this invention, any hanging fitting may be used instead of the hook as the luggage hanging device 6, and the wheels of a trolley equipped with a traveling drive device may be used as the luggage hanging device 6. The electric hoist main body 1 may be placed on the lower part of the trolley frame, and the upper part of the electric hoist main body 1 may be connected to the lower part of the trolley frame.

As the hoisting switch SU and the hoisting down switch SD, other arbitrary switches may be used instead of the push button switches. Without fitting and fixing the separate grip 7 to the holding cylinder 4 yet, a grip having anti-slip annular protrusions arranged at intervals in the vertical direction is directly formed on the outer peripheral surface of the holding cylinder 4. You may.

The present invention can be implemented in an operating device for an electric hoist having a wire lobe hoisting drum, and can also be implemented in an operating device for an electric hoisting device that performs single-speed hoisting and lowering operations. can do.

〔Effect of the invention〕

According to this invention, the switch box 3
A support member 51r includes a vertical holding cylinder 4 connected to the lower part of the supporting member 51r, through which a luggage hanger 6 is connected, a grip 7 is provided on the outer periphery of the holding cylinder 4, and a grip 7 is provided on the outer circumference of the holding cylinder 4. Since the hoisting switch SU and the hoisting switch SD are spaced apart from each other in the horizontal direction, the driver can simply hold the grip 7 with one hand and press the hoisting switch with the thumb of the other hand. By performing a simple operation of operating SU or lowering switch SD,
While preventing the luggage hanging tool 6 from tilting, the hoisting switch S
U and the lowering switch SDt can be easily operated in a stable state to perform hoisting and lowering operations of the electric hoisting device, and since the grip 7 is fixed to the holding cylinder 4, Even if the grip 7 is moved laterally from diagonally above or below in order to adjust the lateral position of the cargo while it is suspended, the grip 7 will not move vertically relative to the switch box B. Therefore grip 7
grip part, hoisting switch SU and lowering switch S
Since the distance from D is always kept constant, effects such as good operability of the hoisting switch SU and the hoisting switch SD can be obtained at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of an electric hoisting device having a driving operation device of the invention, and Fig. 2 is a front view of an electric hoisting device according to an embodiment of the invention. FIG. 6 is a front view of the operating device, and FIG. 6 is a partially longitudinal side view thereof. In the figure, 1 is the electric hoisting device body, 2 is a strip for lifting and lowering a suspended load, 6 is a switch box, 4 is a holding cylinder, 5 is a support member, 6 is a load hanging device, 7 is a grip, and 9 is a cable support Members, 12 and 15 are push buttons, 18 is a cable, SU
is a hoisting switch, and SD is a hoisting switch.

Claims (1)

[Claims] A strip 2 for lifting and lowering a suspended load hanging from the electric hoisting device main body 1
The upper part of a support member 5, which includes a switch box 3 and a vertical holding cylinder 4 connected to the lower part thereof, is connected to the hanging end of the switch box 3, and a load hanging device 6 is connected to the lower part of the holding cylinder 4. In addition, a grip 7 is provided on the outer periphery of the holding cylinder 4, and a hoisting switch SU and a hoisting down switch SD are provided on the switch box 3 at intervals in the lateral direction. Operation device for electric hoisting equipment.