JPH08295469A - Emergency stop operation device for hydraulic elevator - Google Patents

Abstract

PURPOSE: To provide an emergency stop operation device for a hydraulic elevator to facilitate operation of an emergency stop device during the emergency stop of a cage, and shorten a working time, and perform a work by one man. CONSTITUTION: An emergency stop lever 5 is rotatably attached to the lower part of a cage 1. A rope winding drum 9 coupled to the motor rotary shaft 11 of a motor 10 installed to the upper part of the car cage 1 is arranged approximately vertically upward of the emergency lock lever 5. Further, a wire rope 12 has one end tied in the rope fixing hole 5a of the emergency stop lever 5 and is arranged to the upper part side of the car cage 1 along the outer wall of the cage 1 and the other end side is wound to the rope winding drum 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency stop operating device for a hydraulic elevator.

[0002]

2. Description of the Related Art FIG. 6 is a side view showing a conventional hydraulic elevator, FIG. 7 is a top view showing a conventional hydraulic elevator, and FIG. 8 is a view for explaining the operation of an emergency stop device equipped in the conventional hydraulic elevator. 8A shows the normal operation, and FIG. 8B shows the emergency stop operation. In the figure, 1 is a cab room, 2 is a safety handrail attached to the upper part of the cab room 1, 3 is extended to the left and right of the cab room 1 over the entire hoistway (not shown), and is attached to the cab room 1. The main rails 4 which engage with the guide shoes (not shown) to guide the raising and lowering of the cab 1 are safety devices attached to the lower part of the cab 1.
Is composed of a pulling rod 4a, a wedge-shaped shoe 4b connected to the pulling rod 4a, a gripper 4c for accommodating the shoe 4b, and a roller 4d disposed between the shoe 4b and the gripper 4c. . Reference numeral 5 denotes an emergency stop lever rotatably attached, and the rotation torque of the emergency stop lever 5 is transmitted to the emergency stop device 4 via the connecting shaft portion 6 to operate the emergency stop device. 5
Reference numeral a is a rope fixing hole provided in the emergency stop lever 5, and reference numeral 7 is a hemp rope or a cotton rope. Although not shown, this hydraulic elevator is for moving the pump to move the plunger linearly by using a liquid, for example, spindle oil as a medium to raise and lower the cab 1.

Next, the emergency stop operation of the conventional hydraulic elevator will be described. When the cab 1 is in normal operation, the safety device 4 has the pull-up rod 4a lowered so that it is located between the wedge-shaped shoe 4b and the main rail 3 as shown in FIG. 8 (a). There is a predetermined gap. Then, at the time of maintenance and inspection of the hydraulic elevator and repair of the trouble, first, one worker climbs to the upper part of the cab 1,
Drop the rope 7 from the top of the cab 1. Another worker enters the pit of the hoistway and ties the lower end side of the rope 7 hung from above the cab 1 to the rope fixing hole 5a of the emergency stop lever 5. After that, the worker on the cab 1
The rope 7 is pulled up while the car room 1 is being lowered. Then, the emergency stop lever 5 rotates upward, and the rotational torque of the emergency stop lever 5 is transmitted to the emergency stop device 4 via the connecting shaft portion 6. Then, the pulling rod 4a is pulled up, and the wedge-shaped shoe 4b is pulled up along the roller 4d. The shoe 4b is shown in FIG.
As shown in, the wedge effect cuts into between the main rail 3 and the gripper 4c, and the cab 1 is stopped by the frictional force. Then, the upper end side of the rope 7 is tied to the safety handrail 2 while keeping the tension of the rope 7, and the work such as maintenance and inspection and trouble repair is performed.

[0004]

Since the conventional hydraulic elevator is constructed as described above, it is necessary to tie the rope 7 to the rope fixing hole 5a of the emergency stop lever 5 every time the work is performed, and the workability is deteriorated. There is a problem that it takes time to work and that a worker who enters the pit is required in addition to a worker on the cab 1. Further, since the rope 7 is a hemp rope or a cotton rope, there is also a problem that when the pull-out lever 5 is pulled up to rotate the rope 7, the rope 7 extends and the emergency stop operation is delayed. It was

The present invention has been made in order to solve the above-mentioned problems, and when an emergency stop of a cab is performed, the emergency stop device can be easily operated and the working time can be shortened, and one person can The purpose is to obtain an emergency stop operating device for a hydraulic elevator that can work.

[0006]

SUMMARY OF THE INVENTION A safety elevator operating device for a hydraulic elevator according to the present invention grips a main rail that guides the raising and lowering of a cab by operating a safety device installed at a lower portion of the cab of the hydraulic elevator. An emergency stop operating device for a hydraulic elevator that stops the cab, and an emergency stop lever that is rotatably attached to the lower part of the cab and that activates the emergency stop device by turning torque, and an emergency stop lever on the upper side of the cab. The rope take-up drum that is placed, the motor that is placed at the top of the cab and drives the rope take-up drum to rotate, and one end is fixed to the emergency stop lever, and the top of the cab is placed along the outer wall of the cab. And a wire rope wound around the rope winding drum at the other end.

[0007]

In the present invention, the rope winding drum is rotated by driving the motor. Then, when the rope winding drum rotates in the winding direction of the wire rope, the wire rope is wound. At this time, one end of the wire rope is pulled up, and the emergency stop lever fixed to one end of the wire rope is rotated. Then, the turning torque of the emergency stop lever is transmitted to the emergency stop device, the emergency stop device is operated, and the cab is stopped.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention, FIG. 2 is a side view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention, and FIG. FIG. 4 is a top view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the invention, FIG. 4 is a view for explaining the operation of the emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention, and FIG. FIG. 9 is a front view showing the vicinity of a switch portion of a hydraulic elevator emergency stop operating device according to one embodiment, in which the same or corresponding parts as those of the conventional hydraulic elevator shown in FIGS. 6 to 8 are designated by the same reference numerals, The description is omitted.

In the figure, 9 is a rope winding drum which is connected to a motor rotating shaft 11 of a motor 10 installed in the upper part of the cab 1 and is arranged substantially vertically above the emergency stop lever 5; A wire rope, one end of which is connected to the rope fixing hole 5a of the emergency stop lever 5 and is vertically wired along the outer wall surface of the cab 1, and the other end of which is wound around the rope winding drum 9, 13 is a wire rope The steady ring 12 for restricting the shake of the motor 12 is fixed to the mounting base 15 attached to the safety handrail 2 and the motor 10 is fixed.
Is a switch for controlling the drive of the motor, 16 is a cord for connecting the motor 10 and the switch 14, and 17 is a power plug.

Next, the operation of this embodiment will be described. When the cab 1 is operating normally, the switch 14 is turned off, and the emergency stop lever 5 is set at A in FIG.
In the position. Therefore, in the safety device 4, as shown in FIG. 8A, the pulling rod 4a is lowered so that a predetermined gap is provided between the wedge-shaped shoe 4b and the main rail 3. Then, at the time of maintenance and inspection of the hydraulic elevator and trouble repair, first, the worker climbs to the upper part of the cab 1. Then, the switch 14 is tilted to the upward rotation side while the car room 1 is being lowered. Then, the motor 10 is driven and the rope winding drum 9 moves the wire rope 1
Rotate in the direction to wind 2. Then, the wire rope 12 is wound around the rope winding drum 9, and the emergency stop lever 5 rotates to the position B in FIG. The turning torque of the emergency stop lever 5 is transmitted to the emergency stop device 4 via the connecting shaft portion 6. Then, the pulling rod 4a is pulled up, and the wedge-shaped shoe 4b is pulled up along the roller 4d. Then, as shown in FIG. 8B, the shoe 4b bites between the main rail 3 and the gripper 4c by the wedge effect, and the cab 1
To stop. Here, when the switch 14 is turned off, the suspension of the cab 1 is maintained, and the work such as maintenance and inspection and trouble repair can be safely performed.

As described above, according to this embodiment, the motor 10 is arranged above the cab 1, the rope winding drum 9 is connected to the motor rotating shaft 11 of the motor 10, and the wire rope 12 is connected to the cab 1. Since it is wired along the outer wall surface of the rope, one end of the wire is connected to the rope fixing hole 5a of the emergency stop lever 5 and the other end is wound around the rope winding drum 9, the operator can go up to the upper part of the cab 1. The safety device 4 can be operated by controlling the drive of the motor 10. Therefore, there is an effect that the operation of the emergency stop device 4 can be easily performed in a short time and by one person without asking other workers for assistance. In addition, the wire rope 12 does not stretch like the hemp rope or the cotton rope, and the safety device 4 can be operated without delay.

[0012]

As described above, according to the present invention, the emergency stop lever which is rotatably attached to the lower part of the cab and operates the emergency stop device by the turning torque, and the emergency stop lever is arranged on the upper side of the cab. A rope winding drum, a motor that is installed at the top of the cab and drives the rope winding drum to rotate, and one end is fixed to an emergency stop lever, along the outer wall of the cab to the top of the cab. The hydraulic elevator emergency stop operation can be easily and quickly operated by one person, since the emergency stop device can be operated easily and in a short time because the wire rope is provided and the other end of the wire rope is wound around the rope winding drum. The device is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention.

FIG. 2 is a side view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention.

FIG. 3 is a top view showing an emergency stop operating device for a hydraulic elevator according to an embodiment of the present invention.

FIG. 4 is a view for explaining the operation of the emergency stop operating device for the hydraulic elevator according to the embodiment of the present invention.

FIG. 5 is a front view showing the vicinity of the switch portion of the emergency stop operating device for the hydraulic elevator according to the embodiment of the present invention.

FIG. 6 is a side view showing a conventional hydraulic elevator.

FIG. 7 is a top view showing a conventional hydraulic elevator.

FIG. 8 is a diagram for explaining the operation of a safety device equipped in a conventional hydraulic elevator.

[Explanation of symbols]

1 car room, 3 main rails, 4 emergency stop device, 5 emergency stop lever, 9 rope winding drum, 10 motor, 12 wire rope.

Claims (1)

[Claims] 1. An emergency stop operating device for a hydraulic elevator, wherein the emergency stop device installed in the lower part of the cab of a hydraulic elevator is operated to hold a main rail that guides the raising and lowering of the cab, thereby stopping the cab. An emergency stop lever that is rotatably attached to the lower part of the cab and operates the emergency stop device by a turning torque, a rope winding drum arranged on an upper side of the cab, and an upper part of the cab. And a motor for driving the rope winding drum to rotate, one end of which is fixed to the emergency stop lever, is wired along the outer wall of the car room to the upper side of the car room, and the other end is An emergency stop operating device for a hydraulic elevator, comprising: a wire rope wound around a rope winding drum.