JP2546268Y2 - Towing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a traction machine,
The present invention relates to a novel improvement for mounting a motorized driver having a motor on a chain winding mechanism having a chain to obtain a portable electric configuration and for remotely controlling the motorized driver by a remote controller.

[0002]

2. Description of the Related Art As a conventional traction machine of this type, for example, in the case of a lever hoist used for rebuilding a pillar of a building, as shown in FIG. It is disposed obliquely between the intermediate portion 1b and the upper portion 2c. That is, the first lever hoist 3
, A pair of hooks 4 provided at both ends of the chain 4
a and 4b are provided between the middle part 1b and the lower part 2a of the pillars 1 and 2. In the case of the second lever hoist 5, the wire rope 6 connected to the upper part 2 c of the columns 1 and 2 is connected to the chain 8 via the wire clip 7, and the chain 8 is connected to the column via the second lever hoist 5. 1 is connected to the lower part 1a.

[0003]

[Problems to be Solved by the Invention] Since the conventional towing machine is configured as described above, the following problems exist. That is, in the above-mentioned conventional example, each lever hoist is operated by input, and the adjustment of the tension largely depends on the feeling and experience of the worker, and it is a heavy physical work for the worker. When the average age of workers rose, the task was extremely difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. In particular, a portable and remote control is provided in which a motor driven motor having a motor is mounted on a chain winding mechanism having a chain. An object of the present invention is to provide a traction machine having an operable electric configuration.

[0005]

The traction machine according to the present invention is:
In a traction machine in which a chain is moved by a sprocket, a chain winding mechanism having the sprocket, an electric driver provided in the winding mechanism for rotating the sprocket, and an electric driver provided in the electric driver A motor driver for controlling the driving of the motor, a first wireless transceiver connected to the motor driver, and a remote control having a second wireless transceiver wirelessly coupled to the first wireless transceiver. And the electric drive unit is configured to be remotely operated via the remote operation unit, and the electric drive unit and the remote operation unit include:
This is a configuration in which a tension display meter is provided.

A traction machine according to the present invention is a traction machine in which a chain is moved by a sprocket. A chain winding mechanism having the sprocket, and an electric motor provided on the winding mechanism for rotating the sprocket. A driving body, a motor driver provided on the electric driving body for controlling driving of the motor, a first connector connected to the motor driver, and a second connector coupled to the first connector via a cable Wherein the electric drive is remotely operated via the remote control, and the electric drive and the remote control are provided with a tension display meter.

More specifically, the electric driving body has a start / stop switch and a rotation direction changeover switch of the motor, and can operate independently without using the remote operation body. It is.

More specifically, the present invention is configured such that the state of charge of the secondary battery of the electric driving body is displayed on the electric driving body and the remote control body.

[0009] More specifically, the present invention is configured such that a battery replacement alarm of the remote control is displayed on the remote control.

[0010] More specifically, the remote operation body is configured to remotely control a plurality of the electric driving bodies.

[0011]

In the traction machine according to the present invention, since the electric drive having the motor is mounted on the chain winding mechanism, the first hook of the chain is connected to, for example, the upper part of the pillar, and the chain winding mechanism is connected. Is connected to the lower part of the other pillar and the motor of the electric driving body is driven by remote control, the chain is wound up via the sprocket and the traction can be performed. In this state, even if the electric driver is separated from the chain winding mechanism, the chain is not loosened by the chain winding mechanism speed reducer having at least one stage worm speed reducer coupled to the sprocket. Further, the torque generated by the motor can be calculated from the value of the current flowing through the motor by a tension display meter, and the torque can be converted into tension from the reduction ratio and the sprocket diameter.
Further, it is possible to remotely check the tension display, the state of the battery, and the like by remote control.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a traction machine according to the present invention will be described in detail with reference to the drawings. The same or equivalent parts as those in the conventional example will be described with the same reference numerals. FIG.
FIG. 2 is a schematic diagram illustrating the entire configuration of the traction machine according to the present invention. In FIG. 1, reference numeral 10 denotes an electric driving body having a built-in DC-type motor 11, which has a switch 12 for starting and stopping the motor 11, and a rotation direction switch 13. A motor driver 14 is connected, and the motor 11 and the motor driver 14 are configured to be driven by a secondary battery 15. The motor driver 14 and the secondary battery 15 are connected to a first wireless transceiver 51a having a first antenna 50a.

An overload protection section 17 (for example, a well-known torque limiter) is connected to the motor 11 via a speed reducer 16. The overload protection section 17 has a rotating coupling projection 17a projecting therefrom. Is provided.

The speed reducer 16 is provided with a rotation speed changeover switch 18. The rotation speed changeover switch 18 is connected to the first tension indicating meter 1 connected to the motor driver 14.
9 is connected. This first tension indicating meter 19
The motor driver 14 calculates a motor generated torque from a current value flowing through the motor 11, and converts the torque into a tension based on a reduction ratio of the speed reducer 16 and a sprocket diameter of a sprocket 20, which will be described later. The function is performed without using a torque sensor. And the scale conversion of the tension display meter 19 can be changed in conjunction with the reduction ratio switching.

The electric driver 10 is detachably attached to a chain winding mechanism 23 having a chain 22 wound around the sprocket 20 by a well-known one-touch coupling 21 provided at one end 10a of the electric driver 10. A second hook 25 is rotatably mounted via a rotation mechanism 26 to a handle 24 which is attached and is downwardly hung at one end 23 a of the chain winding mechanism 23.

The one end 23a is provided with the coupling projection 17a.
The sprocket 2 is provided via a chain winding mechanism speed reducer 28 having at least one stage worm speed reducer.
0, one end 22a of the chain 22 is formed as a free end, and the other end 22b is connected to the first hook 2a.
9 is connected. Although not shown, the chain winding mechanism speed reducer 28 must have at least one stage worm speed reducer, and the number of stages can be increased or decreased according to the load on the chain.

The traction machine 30 shown in FIG. 1 is configured as shown in FIGS. 2 and 3, and the secondary battery 15 is provided at an end of the handle 24 so as to be detachable. The one-touch coupling 21 employs a well-known structure of a ring slide type coupling as shown in FIGS.

In the state where the chain 22 is pulled by the tension, even if the electric driving body 10 is cut off from the chain winding mechanism 23, at least one stage built in the chain winding mechanism speed reducer 28 is used. The chain 22 is configured not to be loosened by a well-known worm speed reducer (not shown). The switch 12 also serves as a start / stop and a rotation speed setting command. When the switch 12 is inserted deeply, the rotation of the motor 11 is increased, and the rotation of the motor 11 is controlled by the reduction gear 16, the overload protection unit 17,
The sprocket 20 is configured to be able to perform normal and reverse rotation via the coupling protrusion 17a, the coupling recess 27, and the speed reducer 28 for the chain winding mechanism.

The rotation speed changeover switch 18 is mechanically connected to the speed reducer 16 and can freely change the meshing combination of the internal gears (not shown). The first tension display meter 19 is configured so as to be able to switch its display scale in conjunction with the rotation speed changeover switch 18.

The first wireless transmitter / receiver 51a is provided with a second operation member of a remote operation member 60 which is formed separately from the electric driving member 10.
The wireless transmitter / receiver 51b is wirelessly connected to each other via the antennas 50a and 50b. The remote controller 60 has a battery 61, a microcomputer 62 including a CPU, and the same display function as the first tension display meter 19. Having a second
A tension display device 19a, a rotation direction command switch 63 for giving a rotation direction command for the motor 11, and a plurality of the electric driving bodies 10 (in FIG. 1, a single unit is used, but a plurality is used).
And the second wireless transceiver 51b is connected to the microcomputer 62, the battery 61, and the selection switch 64 via the second wireless transceiver 51b. All the information of the remote controller 60 is configured to be able to communicate with the towing machine 30 via the first wireless transceiver 51a.

Next, the operation will be described. First, as shown in FIGS. 1 and 5, after the switch 12 is turned on and activated, the second hook of the chain winding mechanism 23 is locked to the locking portion 40 of the lower portion 1 a of the column 1, and the chain 22 is turned on. By operating the rotation direction command switch 63 of the remote control body 60 in a state where the first hook 29 is locked to the wire clip 7 of the wire rope 6, the rotation direction command is transmitted to the microcomputer 62, the first and the second. 2 wireless transceiver 51
a, 51b and the motor 11 via the motor driver 14.
To rotate the sprocket 20 via the speed reducer 16, the overload protection device 17 and the chain winding speed reducer 28 to wind up the chain 22, for example, to adjust the building condition of the pillar 1 of the building. it can. It should be noted that the start / stop command is also issued by the remote control.

In the case described above, the rotation direction of the chain 22 can be freely and remotely controlled via the rotation direction command switch 63, and the tension of the chain 22 is displayed in the same manner by the respective tension display meters 19 and 19a. The tension state of the chain 22 can be checked in real time by the remote operation body 60.

The second tension display meter 19a of the remote operation body 60 has both a tension value display and a battery charge alarm (status) display of the secondary battery 15, and the motor current value of the motor 11 and the secondary battery 15 The result of calculating the secondary battery voltage value by the microcomputer 62 via an A / D converter (not shown) is displayed on the LCD or LE of the second tension display meter 19a.
D is displayed on the display surface. The second tension display meter 19a also serves as a tension value display and a battery charge alarm for the secondary battery 15, and displays a result of a calculation by the microcomputer 62 of a digital signal received by wireless communication.
The battery 61 of the remote control 60 also serves as a battery replacement alarm.
The result calculated by can be displayed.

Further, as shown in FIG.
And remotely controlling the plurality of towing machines 30 provided on the wire 6 of each column 1 by using one remote control body 60 to freely adjust the tension of the wire 6 using the selection switch 64 Can be.

FIGS. 6 to 9 show another embodiment of the traction machine according to the present invention. The electric drive unit 10 and the remote control unit 60 are connected to each of the above-mentioned radio transceivers. 5
1a and 51b corresponding to the first connector 51aA and the second connector 51aA.
Each connector 51aA, 51b is used by using the connector 51bA.
A is connected by a cable 70, and other configurations and operations are the same as those in FIGS. 1 to 5 described above. Omitted.

[0026]

[Effects of the Invention] The traction machine according to the present invention can obtain the following effects. 1. By driving the chain take-up mechanism by an electric driver which is operated by remote control, the muscular work of the operator can be eliminated. Further, the work time required for the lever repetition work of the conventional lever hoist can be reduced. 2. Since the quantitative value of the tension can be known by the tension display meter, the work can be performed without the need for a skilled worker. 3. Rechargeable batteries and batteries make it easy to carry. Also, there is no restriction on the work place. 4. The electric drive and mechanism can be attached and detached with one touch.
In a state where there is tension, only the mechanical parts are not loosened, so that a large number of mechanical parts can be operated with a small number of electric driving bodies. 5. A single remote control unit can remotely control a plurality of electric drive units, so that one person can adjust the tension while observing the inclination of the column with a transit. 6. The battery warning display makes it easy to know when to replace the secondary battery.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an entire configuration of a traction machine according to the present invention.

FIG. 2 is a front view showing the actual configuration of FIG. 1;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a perspective view showing a remote operation unit.

FIG. 5 is a configuration diagram showing a towing state.

FIG. 6 is a schematic view showing another embodiment of the traction machine according to the present invention.

FIG. 7 is a front view showing the actual configuration of FIG. 6;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a configuration diagram showing a towing state.

FIG. 10 is a configuration diagram showing a conventional configuration.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric drive body 11 Motor 12 Switch 13 Rotation direction changeover switch 15 Secondary battery 17 Overload protection part 19, 19a Tension display meter 20 Sprocket 21 One-touch coupling 22 Chain 17a Coupling protrusion 23 Chain take-up mechanism part 27 Coupling concave part 28 Chain winding mechanism speed reducer 60 Remote control body 51a, 51b Wireless transceiver 51aA, 51bA Connector 70 Cable 61 Battery 62 Microcomputer 63 Rotation direction command switch 64 Selection switch

 ──────────────────────────────────────────────────続 き Continued on the front page (73) Utility model holder 000172813 Sato Kogyo Co., Ltd. 1-111 Sakuragicho, Toyama City, Toyama Prefecture (73) Utility model holder 390037154 Daiwa House Industry Co., Ltd. 1-chome Awaza, Nishi-ku, Osaka-shi, Osaka No. 5-16 (72) Inventor: Yosuke Takaba 3--19-9, Shin Kamata, Ota-ku, Tokyo Inside Tamagawa Seiki Co., Ltd. (72) Shuzaburo Tajika 3--19, Shin-Kamata, Ota-ku, Tokyo No. 9 Tamagawa Seiki Co., Ltd. (56) References JP-A-51-76761 (JP, A) Japanese Utility Model Laid-Open No. 4-44278 (JP, U) Japanese Utility Model Laid-Open No. 4-97793 (JP, U)

Claims (6)

(57) [Scope of request for utility model registration] 1. A traction machine in which a chain (22) is moved by a sprocket (20), a chain winding mechanism (23) having the sprocket (20), and a chain winding mechanism (23). The sprocket provided on the (20)
An electric driver for rotating the motor, and the electric driver
A motor driver (14) provided in (10) for controlling driving of a motor (11); a first wireless transceiver (51a) connected to the motor driver (14); and a first wireless transceiver. (51
a) and a remote control (60) having a second wireless transceiver (51b) wirelessly coupled to the electric drive (10), wherein the electric driver (10) is remotely controlled via the remote control (60). And a tension indicator (19, 19a) is provided on the electric driver (10) and the remote controller (60). 2. A traction machine in which a chain (22) is moved by a sprocket (20). A chain winding mechanism (23) having the sprocket (20), and a chain winding mechanism (23). The sprocket provided on the (20)
An electric driver for rotating the motor, and the electric driver
(10) a motor driver (14) for controlling the driving of a motor (11); a first connector (51aA) connected to the motor driver (14); and a first connector (51aA). A remote controller (60) having a second connector (51bA) coupled via a cable (70), wherein the electric driver (10) is remotely controlled via the remote controller (60). The electric drive unit (10) and the remote control unit (60) which are configured and
A traction machine provided with a tension display meter (19, 19a). 3. The electric driving body (10) includes a start / stop switch (12) and a rotation direction changeover switch for the motor (11).
The device according to claim 1, further comprising (13), wherein the operation can be performed independently without using the remote control body (60).
Or the traction machine according to 2. 4. The state of charge of the secondary battery (15) of the electric driving body (10) is determined by the electric driving body (10) and the remote operation body.
The traction machine according to any one of claims 1 to 3, wherein the traction machine is configured to be displayed as (60). 5. The remote control body (60) according to claim 1, wherein an alarm for replacing the battery of the remote control body (60) is displayed on the remote control body (60). Traction machine. 6. The traction machine according to claim 1, wherein the remote control body (60) is configured to remotely control a plurality of the electric driving bodies (10).