JPS6219693Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a gate opening/closing device that manually opens and closes a gate installed in a water gate or weir installed in a river, etc., and can be freely attached to and detached from the manual handle of the gate opening/closing device. The present invention relates to improvements in a portable gate opening/closing drive device which is assembled into a vehicle and used to open and close the gate opening/closing device using the power of a prime mover.

Gate opening/closing device A, which opens and closes a gate that is freely openable and closable on a water gate or weir installed in a river, etc., is a first
As shown in the figure, a hollow abutment 30 formed in a cylindrical shape with a vertical axis is installed and fixed on the upper surface of the bridge body 2 arranged above the gate 1 and spanning the weir body,
A spindle 31 having a thread on its outer circumferential surface is arranged in the inner cavity of the support 30 so as to be movable up and down with its axial direction being vertical, and the bridge body 2 of the spindle 31
The lower end portion 31a hanging downward through the through hole 20 provided in the gate 1 is connected to the upper end portion of the gate 1, and the upper end side 31b of the spindle 31 is placed in the conductor housing 32 supported on the upper part of the support base 30. A handle shaft 33, which serves as a drive shaft for transmitting power via the female screw and the deceleration mechanism, is supported in the transmission housing 32, and the outer end of the handle shaft 33 is screwed onto a rotatably supported female screw. A handle 34 is attached, and by manually rotating the handle 34 in forward and reverse directions, the female screw is rotated and the spindle 31 is raised and lowered, thereby opening and closing the gate 1. For this reason, opening and closing the gate 1 requires repeating the rotation of the handle 34 many times, which is not only difficult, but also takes time to open and close the gate 1, which may result in not being able to do it in time when the water suddenly increases. may occur.

For this reason, a portable gate opening/closing operation auxiliary device has been developed which is detachably attached to the gate opening/closing device and allows the manual handle 34 of the device to be driven and rotated by the power of a prime mover such as a motor or an engine. ing. However, as shown in Japanese Utility Model Publication No. 13395/1983 and Japanese Utility Model Publication No. 13396/1983, the conventional one is an output shaft that is detachably connected to the handle of the gate opening/closing device or the drive shaft to which the handle is attached. In order to prevent a reduction gear equipped with a rotor from rotating due to a reaction when its output shaft is rotated, a detent lever whose free end is in contact with the ground is required. And from this,
There is a constraint that requires a space to install the non-rotating rod in a predetermined state, and there is also the problem of changing the direction of rotation when the speed reducer that is transmitted to the handle is transmitted to the prime mover using a flexible shaft. However, there is a problem in that the locking rod may be swung in the opposite direction, resulting in injury or equipment damage.

In order to solve these problems, the present invention aims to propose a new means for configuring a gate opening/closing operation auxiliary device in which the locking rod is omitted and the gate opening/closing device can be simply driven by a prime mover.

To achieve this purpose, the portable gate opening/closing drive device according to the present invention rotates together with the manual handle or handle shaft of the gate opening/closing device through a rotation axis coaxial with the handle shaft. A conduction pulley is detachably assembled, and an endless rope is used to transmit power between the conduction pulley and a power take-off pulley attached to a power take-off shaft mounted on the machine frame of a portable power take-off device.
The present invention is characterized in that the rope is guided to a rope guiding wheel pivotally supported by a flexible link having a rope tensioning device and a bendable joint.

Next, embodiments will be described in detail with reference to the drawings.

In FIGS. 2 and 3, a is a conduction pulley attached to the handle 34 of the gate opening/closing device A;
A cage-shaped mounting frame 42 is assembled to the handle 34 with a set bolt 40 and a tightening nut 41, and the axis line is aligned with the handle 34 at the center of the mounting frame 42.
A conduction shaft 43 is fixedly arranged so as to be coaxial with the handle shaft 33 of the handle shaft 33, and the central boss portion of the conduction pulley a is fitted to the outer end portion of the conduction shaft 43. It has a rotation axis coaxial with the shaft 33 and is assembled to rotate together with the handle shaft 33. The conduction pulley a can be configured such that the aforementioned transmission shaft 43 is directly attached to and detached from the handle shaft 33, or the center boss portion of the conduction pulley a is directly attached to and detached from the outer end of the handle shaft 33. May be assembled. Further, the transmission shaft 43 and the transmission pulley a may be configured to incorporate a speed change mechanism.

b is a portable power take-off device, and the prime mover 5 is mounted on a machine frame 50 that is formed so that it can be installed at a desired location.
1 (engine) and the output shaft of its prime mover 51 and a power take-off shaft 53 that is transmitted through a transmission mechanism 52, and the rotation direction of the rotational power transmitted from the output shaft to the power take-off shaft 53 is controlled by a lever 54. It is equipped with a forward/reverse mechanism 55 that can be switched between forward and reverse by operation, and further includes a transmission mechanism 52 and a prime mover 51.
An overload prevention device 56 is provided between the output shaft and the output shaft.

C is a power take-off pulley assembled to the power take-off shaft 53 of the portable power take-off device b, and its rotating shaft 60 is attached to the shaft joint 53 attached to the power take-off shaft 53.
It is assembled by fitting into a. The rotating shaft 60 thereof is pivotally supported by a shaft supporting member 74 provided on a link block 70 on the proximal end side of a swivel link d, which will be described later.

A rope e is stretched between the above-mentioned transmission pulley a and the power take-off pulley c, and is guided by a rope guide wheel 75 supported by a swivel link d, which will be described later.

The flexible link d includes a plurality of link blocks 70,
71, 72, 73 are the bendable and rotatable joints 7a.
. . . and each joint portion 7a
The range of bending and rotation is limited to a certain range until the opening stopper claws 76, 76 abut each other. The aforementioned rope guide wheels 75 are pivotally supported at the bending portion of the joint portion 7a so that the forward and return wheels are opposed to each other. Furthermore, the swivel link d is connected to the link block 70 on the proximal end thereof.
is attached and supported via a mounting seat 77 to the side surface of the machine frame 50 of the above-mentioned portable power take-off device b so that the mounting angle can be freely changed and adjusted. It is loosely supported on a transmission shaft 43 which is a shaft.

A mounting seat on the machine frame 50 side that corresponds to the mounting seat 77 is also formed on the opposite side of the machine frame 50, so that the assembly state to the machine frame 50 can be changed as shown in FIG. It is becoming more and more common. Furthermore, in order to cope with this change, the aforementioned power take-off shaft 53 is also provided with a shaft joint 53a at the opposite end.

Reference numeral 8 denotes a rope tensioning device installed on the flexible link d, in which the link block 70 on the proximal end side is provided with a threaded rod 81 that rotates when a dial 80 is operated, and a pinion 82 and a pinion 82 that rotate with the rotation of the threaded rod 81. The rack 83 is driven by the rotation of the pinion 82, and is provided with a rope-stretched support 84 that moves in and out.

In the illustrated embodiment, reference numeral 57 denotes a handle rod with a rotation speed control yoke and a power cutoff clutch lever of the portable power take-off device b;
is a stop for rope e to come off.

Next, to explain the operation and effect, in the gate opening/closing portable drive device according to the present invention configured as described above, the transmission pulley a, which is detachably attached to the handle 34 or the handle shaft 33 of the gate opening/closing device A, is connected to the handle. The power take-off shaft 5 of the power take-off device b is guided by an endless rope e that rotates on a rotation axis coaxial with the shaft 33 and whose transmission pulley a is pivotally supported by a swivel link d.
Since the rope e and the flexible link d guiding the rope e are driven by conduction with the conduction pulley c provided at 3, the conduction pulley a and the transmission shaft 43 are loosely fitted into the link block 73 by the bearing f. Therefore, the handle 34 of the gate opening/closing device A can be driven and rotated smoothly without being swung around by the reaction force when rotating the drive, and the handle 34 of the gate opening/closing device A can be driven and rotated smoothly without providing a rotation stopper. Even if the rotational direction of the power take-off shaft 53 is switched between forward and reverse, the rope e and the flexible link d will not be swung around, and the installation position of the portable take-out device b can be moved forward or backward due to the flexibility of the rope e. Left and right. Up and down. rope e
It can be installed freely up to the tension limit of the gate, convenient for operation on narrow slabs, and safely
The free link portion 4 can be opened and closed using the power taken out from the power take-off shaft 53 of the power take-off device b.
This is a portable drive device for opening and closing gates that can be transported by attaching and detaching the device 2 to c and the take-out device b.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the gate opening/closing device, and FIG. 2 is a side view of the portable gate opening/closing drive device according to the present invention assembled to the gate opening/closing device.
FIG. 3 is a longitudinal sectional side view of the same as above, FIG. 4 is a side view of the same when the assembled state is changed, and FIG. 5 is a front view of the same with a portion of the swivel link omitted. Explanation of drawing symbols, A...Gate opening/closing device, a...
...Conduction pulley, 1...Gate, 2...Bridge body, 2
0...Through hole, 30...Abutment, 31...Spindle, 31a...Lower end, 31b...Upper end side, 32
...Transmission housing, 33...Handle shaft, 34...Handle, 40...Set bolt, 41...Tightening nut, 42...Mounting machine frame, 43...Transmission shaft, b...
... Portable power take-off device, 50 ... Machine frame, 5
1... Prime mover (engine), 52... Transmission mechanism,
53...Power take-off shaft, 53a...Shaft joint, 54...
...Lever, 55... Forward/reverse mechanism, 56... Overload prevention device, 57... Handle lever with rotation speed control yoke and clutch lever, c... Power take-off pulley, d... Universal link, e... Rope, f...bearing, 60...rotating shaft, 7a...joint, 7
0, 71, 72, 73...link block, 74
...Axle supporting member, 75...Rope guide wheel, 76...
Opening stopper claw part, 77...Mounting seat, 78...Removal stopper, 8...Rope tension device, 80...Dial,
81... Screw rod, 82... Pinion, 83... Rack, 84... Support.

Claims (1)

[Scope of utility model registration request] A transmission pulley a, which rotates together with the handle shaft 33 through a rotational axis coaxial with the handle shaft 33, is detachably attached to the manual handle 34 or the handle shaft 33 of the gate opening/closing device A. and a power take-off pulley c assembled to a power take-off shaft 53 that is mounted on the machine frame 50 of a portable power take-off device b, through an endless rope e, and the rope e is connected to the rope tensioning device 8 in a flexible manner. A portable drive device for opening and closing a gate, which is guided by a rope guide wheel 75 supported by a flexible link d having a joint 7a.