JPH06639B2 - Driving operation device for electric hoisting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a driving operation for operating a hoisting switch, a hoisting switch and a speed controller of an electric hoisting device such as an electric chain block or an electric hoist. It relates to the device.

[Prior art]

Conventionally, as a driving control device for an electric hoisting device, the actual operating device is 4
As disclosed in Japanese Patent Laid-Open No. 8-35070, an intermediate portion of an inner lid is pivotally attached to an opening of a box having a mechanical / electrical conversion control device such as a potentiometer, by a pivot fixed to the inner lid. , Meshing an arcuate gear fixed to its pivot with a pinion fixed to the operation shaft of the mechanical / electrical conversion control device, and connecting both end portions of the inner lid and the intermediate portion of the box body through a neutral position holding spring. Operation in which one end or the other end of the inner lid is pressed and the inner lid is used to rotate the operation shaft of the mechanical / electrical conversion control device through the pivot, the arc gear, and the pinion. Operating devices are known.

[Problems to be solved by the invention]

However, in the case of the above-mentioned conventional operation control device, since it is configured to operate one mechanical-electrical conversion control device, an operation operation having a hoisting switch, a hoisting switch and a speed controller. The device has a problem that it cannot be adopted.

[Object and Structure of Invention]

An object of the present invention is to provide a driving operation device for an electric hoisting device which can advantageously solve the above-mentioned problems, and the gist of the present invention is to attach the driving operation cable 1 to the driving operation device. An intermediate portion of the operation lever 3 is pivotally attached to the support box 2 by a pivot shaft 4, and an intermediate portion of the acupressure piece 5 is integrally provided at an outer end portion of the operation lever 3, and the operation lever 3 is used to center the pivot shaft 4 as a center. Rotating member 6 that is rotated
Is provided with an arcuate gear 7 having a common center with the pivot 4, and a pinion 10 meshing with the arcuate gear 7 is fixed to an operation shaft 9 of a speed controller 8 fixed to the support box 2. At the inner end of the operating lever 3, a hoisting striker 11 for operating the hoisting switch LS-U fixed to the support box 2 and a hoisting switch LS-D fixed to the support box 2 are operated. A hoisting striker 12 is provided, and a neutral position holding spring 13 for holding the operating lever 3 and the rotating member 6 in a neutral position is fixed to the support box 2, and the electric hoisting device. It is located in the operation control device.

〔Example〕

 The present invention will now be described in detail with reference to the illustrated example.

1 to 8 show an embodiment of the present invention, in which a handle 17 is provided at a lower end portion of a driving operation cable 1 in an electric hoisting device such as an electric chain block or an electric hoist. The upper part of the support box 2 provided integrally is attached, and the support box 2 is composed of a box body 18 and a groove-shaped support metal fitting 20 housed in the box body 18 and fixed by screws 19, and the upper part of the support box 2 The operation lever 3 is inserted through a slit 21 provided in the pivot shaft 4 rotatably inserted through an intermediate portion of the operation lever 3.
Is inserted over both side plates of the groove-shaped support fitting 20,
An intermediate portion of the acupressure piece 5 is integrally provided at the outer end portion of the operating lever 3 which is locked by the snap ring 22 and protrudes outward from the slit 21.

One end of a rotating member 6 arranged in the support box 2 is rotatably fitted to the pivot 4, and the other end of the rotating member 6 has an arc shape having a common center with the pivot 4. An electric speed controller 8 provided with a gear 7 and composed of a potentiometer or a variable resistor is fixed to a groove-shaped support fitting 20, and a pinion 10 fixed to an operating shaft 9 of the speed controller 8 is the arcuate gear. The hoisting switch LS-U and the hoisting switch LS-D are fixed to the side plate of the groove-shaped support fitting 20.

A hoisting switch LS-U is provided at the inner end of the operation lever 3.
Arc-shaped hoisting striker 11 for manipulating and arc-shaped hoisting striker 12 for manipulating hoist switch LS-D
And are provided at intervals in the circumferential direction of the pivot 4, and the roller 24 at the tip of the switch lever 23 in the hoisting switch LS-U is arranged so as to approach or contact the operation start end of the hoisting striker 11. Further, the roller 26 at the tip of the switch lever 25 in the unwinding striker LS-D is arranged so as to approach or contact the operation starting end portion of the unwinding striker 12.

A protrusion 27 for holding a neutral position of a circular cross section, which extends parallel to the pivot 4 toward the operation lever 3, is integrally provided at an intermediate portion of the rotating member 6, and the protrusion for holding the neutral position of the rotating member 6 is provided. A pressed portion forming through hole 28 is provided in a portion between the portion 27 and the pivot 4, and the operation lever 3 further includes a rotating pressing member 14 inserted in the center of the pressed portion forming through hole 28. Are provided integrally.

A pair of side plates 30 whose intervals are gradually reduced as they move away from the mounting plate 29 are bent and connected to both ends of the mounting plate 29, and the tip ends of the respective side plates 30 gradually move toward the mounting plate 29. A pair of pressing plates 31 with a reduced space
Are arranged in series to form a neutral position holding spring 13, and a mounting plate 29 for the neutral position holding spring 13 is formed.
Is superposed on the groove bottom plate of the groove-shaped support fitting 20 and fixed by the screw 19, and further, the pair of pressing plates 31
Is a pressing member 14 for rotation and a protrusion 27 for holding the neutral position.
The operation lever 3 and the rotating member 6 are held in the neutral position by the spring 13 for holding the neutral position.

When the operation lever 3 and the rotating member 6 are held in the neutral position, the rotating pressing member 14 and the rotating pressed members 15 on both sides of the pressed member forming through hole 28 in the rotating member rotating direction are formed. Between them, a delay rotation gap 16 of uniform size is provided.

A winding-up display 32 is provided on the surface of one side of the acupressure piece 5, and a winding-down display 33 is provided on the surface of the other side of the acupressure piece 5.
And a dustproof elastic bellows 3 extending over the back surface around the acupressure piece 5 and around the slit 21 in the box 18.
4 are arranged and fixed by an adhesive.

In the operation control device of the above-described embodiment, when the handle 17 is gripped and the portion of the winding display 32 of the acupressure piece 5 is pressed with a finger to gradually rotate the operation lever 3, first, FIG. As shown in, the hoisting striker 11 operates the switch lever 23 of the hoisting switch LS-U,
The hoisting operation of the electric hoisting device is started by the signal of the hoisting switch LS-U. In this case, the operating lever 3
Until the rotating pressing member 14 in FIG. 2 engages with the rotating pressed portion 15 in the rotating member 6, the pair of pressing plates 3
1 engages with both side surfaces of the protrusion 27 for holding the neutral position, and the rotating member 6 is held at the neutral position.

After the rotation pressing member 14 is engaged with the rotation pressed portion 15 and the operation lever 3 is further rotated, the rotation member 6 is rotated by the operation lever 3. The operating shaft 9 of the speed controller 8 is rotated by the arcuate gear 7 of 6 via the pinion 10 to increase the hoisting speed.

Further, when the pressing force of the finger-pressure piece 5 is relaxed, the rotating member 6 is rotated toward the neutral position by the force of the neutral position holding spring 13, and the operating shaft 9 of the speed controller 8 is decelerated. The operating lever 3 is rotated and is rotated by the force of the spring 13 for holding the neutral position to the neutral position, and the operation of the hoisting switch LS-U by the hoisting striker 11 is released, so that the electric hoisting device is operated. Hoisting operation is stopped.

Press the portion of the unwinding indicator 33 on the acupressure piece 5 with your finger,
When the operation lever 3 is gradually rotated in the opposite direction, firstly, the switch lever 25 of the lowering switch LS-D is operated by the lowering striker 12 to move the lowering switch L.
The S-D signal starts the lowering operation of the electric hoisting device. In this case, the pair of pressing plates 31 are provided on both side surfaces of the protrusion 27 for holding the neutral position until the rotating pressing member 14 of the operation lever 3 is engaged with the rotating pressed portion 15 of the rotating member 6. The rotating member 6 is engaged and held in the neutral position.

After the rotation pressing member 14 is engaged with the rotation pressed portion 15 and the operation lever 3 is further rotated, the rotation member 6 is rotated by the operation lever 3. The operating shaft 9 of the speed controller 8 is rotated by the arcuate gear 7 of 6 via the pinion 10, and the lowering speed is increased.

Further, when the pressing force of the finger-pressure piece 5 is relaxed, the rotating member 6 is rotated toward the neutral position by the force of the neutral position holding spring 13, and the operating shaft 9 of the speed controller 8 is decelerated. The operation lever 3 is rotated and is rotated by the force of the spring 13 for holding the neutral position to the neutral position, and the operation of the lowering switch LS-D by the lowering striker 12 is released. The unwinding operation of is stopped.

FIG. 9 shows an example in which an auxiliary spring for strengthening the spring force of the neutral position holding spring 13 is provided.
5, a pair of spring plates 36 whose distance is gradually reduced as they are separated from the mounting plate 35 are bent and connected continuously to form an auxiliary spring 37. The auxiliary spring 37 has a neutral position maintaining spring. 13 is inserted, and the tip of the spring plate 36 of the auxiliary spring 37 has the neutral position holding spring 13
Is abutted on the intermediate portion of the side plate 30.

In the case of the above-described embodiment, both the operating lever 3 and the turning member 6 can be held in the neutral position by the single spring 13 for holding the neutral position.

When carrying out the present invention, a rotating pressing member is provided on both sides in the rotating direction on the inner end side of the operating lever 3, and a delay is provided between the rotating pressing member and both side surfaces of the rotating member 6 in the rotating direction. A rotation gap may be provided.

〔The invention's effect〕

According to the present invention, when one side portion or the other side portion of the acupressure piece 5 is pressed by the finger to rotate the operation lever 3, first, the hoisting striker 11 or the hoisting striker 11 at the inner end portion of the operation lever 3 is wound. By the lower striker 12, the hoisting switch LS-U or the hoisting switch LS-D is operated to start the hoisting operation or the hoisting operation of the electric hoisting device, and the operation lever 3 is further rotated. Then, the operating shaft 9 of the speed controller 8 is rotated by the arcuate gear 7 provided on the rotating member 6 which is rotated by the operating lever 3 to adjust the hoisting speed or the hoisting speed. Therefore, by simply pressing one side portion or the other side portion of the acupressure piece 5, the operation of the hoisting switch LS-U or the hoisting switch LS-D and the hoisting speed are performed. And operation of the speed controller 8 for adjusting the unwinding speed Preparative can be performed, if will further loosen the pressing force of the finger pressure piece 5, the neutral position holding springs 13
The effect of being able to automatically rotate both the operation lever 3 and the rotating member 6 to the neutral position by the force of is obtained.

[Brief description of drawings]

1 to 8 show an embodiment of the present invention, in which FIG. 1 is a vertical sectional front view of an operating device for an electric hoisting device, FIG. 2 is a vertical sectional side view thereof, and FIG. Is A- in FIG.
A sectional view taken along the line A, FIG. 4 is a sectional view taken along the line BB in FIG. 2, FIG. 5 is a front view of a driving operating device for an electric hoisting device, and FIG. 6 is a pressing member for rotation and a pressed portion for rotation. Fig. 7 is a vertical sectional front view showing a portion of Fig. 7, Fig. 7 is a front sectional view showing a neutral position holding spring, and Fig. 8 is a vertical sectional front view showing a state immediately after operating a hoisting switch. FIG. 9 is a vertical cross-sectional front view showing a drive operating device for an electric hoisting device provided with an auxiliary spring. In the figure, 1 is a cable for driving operation, 2 is a support box, 3 is an operating lever, 4 is a pivot, 5 is an acupressure piece, 6 is a rotating member, 7 is an arc gear, 8 is a speed controller, and 9 is an operation. axis,
Reference numeral 10 is a pinion, 11 is a hoisting striker, 12 is a hoisting striker, 13 is a neutral position holding spring, 14 is a rotating pressing member, 15 is a rotating pressed portion, 16 is a delayed rotating gap, and 17 is A handle, 23 is a switch lever, 24 is a roller, 25 is a switch lever, 26 is a roller, 27 is a neutral position holding protrusion, 28 is a through hole for forming a pressed portion, 31 is a holding plate, 32 is a winding display, 33 is an unwinding display, 34 is a dustproof telescopic bellows, LS-U is a hoisting switch, and LS-D is a hoisting switch.

Claims (1)

[Claims] 1. An intermediate portion of an operation lever 3 is pivotally attached to a support box 2 attached to a driving cable 1 by a pivot shaft 4, and an intermediate portion of an acupressure piece 5 is integrated with an outer end portion of the operation lever 3. An arc gear 7 having a common center with the pivot 4 is provided on a pivot member 6 provided on the pivot box 4 about the pivot 4 by the operation lever 3.
A pinion 10 meshing with the arcuate gear 7 is fixed to an operation shaft 9 of a speed controller 8 fixed to the hoisting switch LS-, which is fixed to the support box 2 at an inner end portion of the operation lever 3. A hoisting striker 11 for operating U and a hoisting striker 12 for operating a hoisting switch LS-D fixed to the support box 2 are provided. A neutral position holding spring 13 for holding the member 6 in the neutral position is fixed, and the operation device for an electric hoisting device.