JP5240687B2 - Elevator rope steady rest - Google Patents

Description

  The present invention relates to a steady rest device that suppresses runout of a rope in an elevator.

Elevators include a main rope that suspends the car and counterweight in the hoistway, a compen- sion rope that compensates for variations in the weight balance between the car and the counterweight, and a governor rope that operates the emergency stop device for the car. Is provided. An anti-sway device that suppresses the swing of these ropes is provided.
Japanese Patent Publication No. 64-6112 discloses a governor rope steadying device. This steadying device includes a steadying member attached to a guide rail that guides the car. This steadying member is composed of a U-shaped fixed frame partially having an open portion and a movable frame provided so as to open and close the open portion of the fixed frame. The governor rope is passed through a space surrounded by the fixed frame and the movable frame, and the fixed frame and the movable frame are used to prevent the steady state.
The car is provided with an engaging member at a position corresponding to the movable frame of the steadying member. A part of the governor rope is connected to the link mechanism of the emergency stop device of the car, and when the connecting part approaches the steady member according to the movement of the car, the engaging member stops. The movable frame is brought into contact with the movable frame of the member, and the movable frame is rotated by this contact to open the opening portion of the fixed frame. By this opening, the connecting portion can be passed, and after the passage, the movable frame is returned to the original position. It returns to close the open part of the fixed frame.
Japanese Patent Publication No. 64-6112

  However, in the rope steady rest device of Japanese Examined Patent Publication No. 64-6112, when the engaging member of the car comes into contact with the movable frame of the steady rest member, noise and vibration are generated by the impact, and the inside of the car There is concern that passengers may feel uncomfortable or uneasy.

  The present invention has been made paying attention to such a point, and the object of the present invention is to properly connect the connecting portion between the rope and the car with respect to the rope steadying member without generating noise or vibration. An object of the present invention is to provide an elevator rope steadying device that can be passed.

The invention of claim 1 comprises a fixed frame having an opening part in a part thereof, and a movable frame that is rotatably provided on the fixed frame and that opens and closes the opening part of the fixed frame by the rotation operation. An anti-sway member that surrounds a rope connected to the elevator car by a frame and a movable frame to prevent the anti-sway, a drive source that rotates the movable frame, and an elevator car to the anti-sway member Detecting means for detecting the approach of the sensor and outputting a signal; and based on the signal output by the detecting means, the movable frame is rotated via the drive source to open the opening portion of the fixed frame. And a control means that allows the connecting portion of the rope and the car cage to pass through the steadying member , and the movable frame is in the shape of a long plate and can be rotated in the middle of its longitudinal direction via a rotating shaft. Supported by the rotary shaft Engaging roller in the longitudinal direction end portion of the movable frame to be found is characterized in that the weight for the balance the other longitudinal end portion is attached.

  The invention according to claim 2 is characterized in that the rope is at least one of an elevator main rope, a governor rope, and a compensation rope.

  The invention of claim 3 is characterized in that a protection member for the rope passing through the inside of the fixed frame and the movable frame is provided on the inner surface of the fixed frame and the movable frame of the steadying member.

  According to a fourth aspect of the present invention, there is provided a mechanical means for mechanically rotating the movable frame when the movable frame is not rotated by the driving source.

  According to this invention, the connecting portion between the rope and the car can be properly passed through the rope steadying member without generating noise or vibration.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 7 show a first embodiment of the present invention. This embodiment is a steady rest device for an elevator main rope. FIG. 1 shows the overall configuration of an elevator. A pair of car guide rails 2 and weight guide rails 3 are vertically provided in the elevator hoistway 1. A car 6 is disposed between the guide rails 2 for the car, and a counterweight 7 is disposed between the guide rails 3 for the weight.

A hoisting machine 8 is attached to the upper part of the guide rail 2, and a main rope 9 is wound around a traction sheave 8 a of the hoisting machine 8. Then, the car rope 6 and the counterweight 7 are suspended in the hoistway 1 by the 2: 1 roping method.
In other words, a pair of car sheaves 12 (only one is shown) is rotatably attached to the lower part of the car 6 and one weight sheave 13 is rotatably attached to the upper part of the counterweight 7. . The car sheave 12 is attached to the lower portion of the car 6 via a sheave frame 14 so that a part of the car sheave 12 protrudes outward from the side surface of the car 6.

  One end side of the main rope 9 wound around the traction sheave 8a of the hoisting machine 8 is drawn below the car 6 and hooked onto the car sheave 12, and further pulled out above the car 6. It is connected to a hitch 15 provided on the upper part of the guide rail 2. The other end side of the main rope 9 is hooked to the weight sheave 13 of the counterweight 7, further pulled out above the counterweight 7 and connected to a hitch 16 provided on the upper portion of the guide rail 3.

  The car 6 and the counterweight 7 are suspended in the hoistway 1 by such a 2: 1 roping method, and the car 6 and the counterweight 7 are respectively attached to the guide rails 2 and 3 according to the driving of the hoisting machine 8. Move up and down along.

The guide rail 2 for the car is provided with a plurality of steadying members 20 with a predetermined interval. As shown in FIGS. 2 to 5, the steady-rest member 20 includes a substantially U-shaped fixed frame 22 having an open portion 21, and a long plate-shaped movable frame 23 that opens and closes the open portion 21 of the fixed frame 22. The portion extending along the side surface of the car 6 of the main rope 9 is passed through the space surrounded by the fixed frame 22 and the movable frame 23, and the steadying is achieved.
The fixed frame 22 of the steadying member 20 is attached to the guide rail 2 via a bracket 26 as shown in FIG. 2, and a movable frame 23 is attached to the fixed frame 22 via a rotary shaft 27 shown in FIGS. It attaches so that rotation is possible, and the opening part 21 of the fixed frame 22 is opened and closed by the rotation operation | movement. In the movable frame 23, an engagement roller 29 is rotatably attached to an end portion on one end side, and a balance weight 30 is attached to an end portion on the other end side. A motor 31 as a drive source for driving and rotating the movable frame 23 is attached to the fixed frame 22, and a control device 32 for controlling the motor 31 is attached to the bracket 26. The engaging roller 29 is preferably formed of a buffer material such as rubber or soft plastic.

When the car 6 is moved up and down, a part of the periphery of the car sheave 12, which is a connecting part between the main rope 9 and the car 6, passes through the space inside the opening part 21 of the opened fixed frame 22. pass.
As shown in FIGS. 1 and 2, brackets 33 are attached to the guide rails 2 to which the steady member 20 is attached, respectively, on the upper and lower sides of the steady member 20. When the car 6 approaches the steady stop member 20 up to a predetermined distance, detection sensors 34a and 34b are attached to the bracket 33, and signals detected by the detection sensors 34a and 34b are the motors. It is sent to a control device 32 for controlling 31. The detection sensors 34a and 34b are optical sensors that optically detect the approach of the car 6, for example.
Further, as shown in FIGS. 1 and 6, an engagement member 36 is attached to the car 6 at a position corresponding to the engagement roller 29 provided on the movable frame 23 of the steadying member 20. The engaging member 36 has a substantially arcuate shape having pushing portions 36a and 36b inclined in opposite directions on the upper and lower portions, and is attached to the side surface of the sheave frame 14 that supports the car sheave 12, for example.
Note that a plurality of such steady rests are provided on the guide rails 2 on both sides of the car 6 at predetermined intervals in the vertical direction, and are routed around the car sheave 12 below the car 6. The main rope 9 extending on both sides of the car 6 is surrounded by the fixed frame 22 and the movable frame 23 of each steadying device so that the deflection is suppressed.
Next, the operation will be described.

When the car 6 moves downward and approaches the steady member 20 shown in FIGS. 1 and 2 during the operation of the elevator, the approach of the car 6 is first detected by the detection sensor 34a, and the signal is sent to the control device 32. The motor 31 is driven by the control of the control device 32 based on the signal. Then, the movable frame 23 rotates about the rotation shaft 27 by the operation of the motor 31, and the opening portion 21 of the fixed frame 22 is opened.
As a result, the car sheave 12 can pass through the inside of the fixed frame 22, so that the car sheave 12 does not come into contact with the steadying member 20 when the car 6 approaches the steadying member 20. 20 arrangement parts are passed. After passing the car 6, the motor 31 rotates in the reverse direction and the movable frame 23 rotates in the reverse direction. The movable frame 23 closes the opening 21 of the fixed frame 22, and the car 6 along the guide rail 2. The main rope 9 extending upward is surrounded by the movable frame 23 and the fixed frame 22, and the swinging thereof is suppressed.
When the car 6 moves upward, the approach of the car 6 is detected by the detection sensor 34b on the lower side of the steadying member 20, and the motor 31 is driven by the control by the control device 32 based on the signal, and the movable frame 23 rotates to open the open portion 21 of the fixed frame 22 so that the car sheave 12 can pass through the inside of the fixed frame 22, so that the car sheave 12 does not come into contact with the steady-rest member 20. After passing through the arrangement portion of the member 20, the motor 31 rotates reversely and the movable frame 23 rotates in the reverse direction, and the movable frame 23 closes the opening portion 21 of the fixed frame 22, so that the guide rail 2 A main rope 9 extending along the upper side of the car 6 along the upper side is surrounded by the movable frame 23 and the fixed frame 22, and the swinging thereof is suppressed.
As described above, the movable frame 23 of the steadying member 20 is rotated by the control of the motor 31 when the car 6 approaches, so that shocking noise and vibration may occur during the rotation. Therefore, there is no inconvenience that causes discomfort and anxiety to passengers in the car 6.
By the way, in the case where the motor 31 does not operate due to a failure or malfunction of the electrical parts such as the detection sensors 34a, 34b, the control device 32, and the motor 31, and the car 6 that moves upward approaches the steady member 20, As shown in FIG. 7, first, the pushing portion 36a on the upper portion of the engaging member 36 contacts the engaging roller 29 of the movable frame 23, and the movable frame 23 is mechanically pushed by the pushing portion 36a to rotate upward. Then, the opening portion 21 of the fixed frame 22 is opened, and the car 6 can be passed.
Further, when the car 6 moves downward, the lower pressing portion 36b of the engaging member 36 comes into contact with the engaging roller 29 of the movable frame 23, and the movable frame 23 is mechanically pressed by the pressing portion 36b to be lowered. Rotating in the direction, the opening 21 of the fixed frame 22 is opened, and the car 6 can pass through.
Therefore, even if the electric parts such as the detection sensors 34a and 34b, the control device 32, and the motor 31 are broken, the car sheave 12 normally passes through the arrangement portion of the steady member 20, and the steady member. 20 is not damaged.

In the first embodiment, the steady rest device is intended for the main rope 9, but as shown in FIG. 8 as the second embodiment, a steady rest device intended for the governor rope 40 may be used. It is.
As shown in FIG. 8, the governor rope 40 is wound around a governor sheave 41 and a tensioning wheel 42, and the middle of the governor rope 40 is connected to a link mechanism 48 of an emergency stop device provided at the lower part of the car 6. Yes. The governor rope 40 travels at the same speed as the car 6, and when the car 6 descends at an abnormal speed, a governor device (not shown) is actuated via the governor rope 40, and the governor rope 40 travels by that action. When the governor rope 40 stops traveling, the emergency stop device for the car 6 is activated and the car 6 is brought to an emergency stop.

  The governor rope 40 is provided with the steadying member 20 and the detection sensors 34a and 34b having the same structure as that of the first embodiment. The steadying member 20 and the detection sensors 34a and 34b are attached to the guide rail 2 for the car via brackets 45 and 46, respectively.

  Also in the second embodiment, as in the case of the first embodiment, when the car 6 moves and approaches the steadying member 20, the approach of the car 6 is first detected by the detection sensor 34a or 34b. Based on the signal, the motor 31 (see FIG. 3) is driven, the movable frame 23 rotates to open the open portion 21 of the fixed frame 22, and the connecting portion between the governor rope 40 and the car 6 is opened by this opening. It is possible to pass through the inside of the fixed frame 22. After the passage, the motor 31 reverses and the movable frame 23 rotates in the reverse direction, the open portion 21 of the fixed frame 22 is closed by the movable frame 23, and the governor rope 40 is surrounded by the fixed frame 22 and the movable frame 23. And the fluctuation is suppressed.

Also in the second embodiment, as in the case of the first embodiment, the movable frame 23 of the steadying member 20 is rotated by driving by the motor 31 when the car 6 approaches. Therefore, there is no shocking noise or vibration during the rotation, and therefore there is no inconvenience that causes discomfort and anxiety to passengers in the car 6.
Furthermore, as shown in FIG. 9 as a third embodiment, the present invention can also be applied to a steady rest device for the compen rope 50. The compensation rope 50 compensates for a change in the weight balance between the car 6 side and the balance weight 7 side according to the moving position of the car 6, and between the lower part of the balance weight 7 and the lower part of the car 6, U It is stretched so as to hang down in a letter shape. A tension wheel 51 is provided at the lower portion of the compen- sive rope 50, and an end portion of the compen- sive rope 50 on the side of the car 6 is connected to a hitch 52 that protrudes outward from the lower side of the car 6. .

  The compensator 50 is provided with the steady member 20 and the detection sensors 34a and 34b having the same structure as that of the first embodiment. The steadying member 20 and the detection sensors 34a and 34b are attached to the guide rail 3 for weight, for example, via brackets 55 and 56, respectively.

  Also in the third embodiment, as in the case of the first and second embodiments, when the car 6 moves and approaches the steadying member 20, the approach of the car 6 is first detected by the detection sensor 34a or 34b. And the motor 31 (see FIG. 3) is driven based on the signal, and the movable frame 23 is rotated to open the opening 21 of the fixed frame 22. With this opening, the compensator 50 and the car 6 The connecting portion can pass through the inside of the fixed frame 22. After the passage, the motor 31 reverses and the movable frame 23 rotates in the reverse direction, the open portion 21 of the fixed frame 22 is closed by the movable frame 23, and the compensator 50 is moved between the fixed frame 22 and the movable frame 23. It is surrounded and the shake is suppressed.

Also in the third embodiment, as in the first and second embodiments, the movable frame 23 of the steadying member 20 is rotated by driving by the motor 31 when the car 6 approaches. Therefore, no shocking noise or vibration is generated during the rotation, and therefore there is no inconvenience that gives passengers discomfort and anxiety in the car 6.
In addition, this invention may be a case where the same steadying apparatus as the above-mentioned each embodiment is provided with respect to each of the main rope 9 of the elevator, the governor rope 40, and the compensation rope 50.

  By the way, each of the ropes 9, 40, 50 is surrounded by the fixed frame 22 and the movable frame 23 so that the swing of the ropes 9, 40, 50 is suppressed. If this point is taken into consideration, it is preferable to provide protective means for preventing scratches inside the fixed frame 22 and the movable frame 23.

  FIG. 10 shows an example of protection means. In this example, rotatable rollers 60 are provided on the inner surfaces of the fixed frame 22 and the movable frame 23, respectively. These rollers 60 are made of an elastic body such as rubber or a soft plastic material, and can be rotated and exchanged on the inner surface of each side of the fixed frame 22 and the inner surface of the movable frame 23 so that the rotation axis thereof is horizontal. It is attached as possible.

  According to such a configuration, the ropes 9, 40, 50 surrounded by the fixed frame 22 and the movable frame 23 and passing through the inside thereof only come into contact with the rotatable roller 60, so that the fixed frame 22, the movable frame 23, Therefore, the ropes 9, 40 and 50 can be prevented from being damaged.

  FIG. 11 shows another example of the protection means. In this example, an elastic body 61 made of rubber or a soft plastic material is fixed to the inner surfaces of the fixed frame 22 and the movable frame 23 in place of the roller 60. It is attached to the inner surface of each side of the frame 22 and the inner surface of the movable frame 23 in an exchangeable manner.

  Even in such a configuration, the ropes 9, 40, 50 surrounded by the fixed frame 22 and the movable frame 23 and passing through the inner side thereof are in direct contact with the fixed frame 22 and the movable frame 23 only by contacting the elastic body 61. Therefore, the ropes 9, 40, 50 can be prevented from being damaged.

The perspective view which shows the whole structure of an elevator provided with the rope steadying apparatus which concerns on 1st Embodiment of this invention. The perspective view which shows the external appearance of the attaching part of the rope steadying apparatus. The perspective view of the rope steadying apparatus. The top view of the rope steadying apparatus. The front view of the rope steadying apparatus. The perspective view which shows the means to operate the rope steadying apparatus mechanically. The perspective view which shows the state at the time of operation | movement of the mechanical means. The perspective view which shows the whole structure of an elevator provided with the rope steadying apparatus which concerns on 2nd Embodiment of this invention. The perspective view which shows the structure of the whole elevator provided with the rope steadying apparatus which concerns on 3rd Embodiment of this invention. The perspective view which shows the example which provides a rope protection means in a rope steadying apparatus. The perspective view which shows the other example which provides a rope protection means in a rope steadying apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2.3 ... Guide rail 6 ... Riding car 8 ... Hoisting machine 9 ... Main cable rope 12 ... Car sheave 20 ... Stabilizing member 21 ... Opening part 22 ... Fixed frame 23 ... Movable frame 31 ... Motor (drive) source)
32 ... Control device 34a. 34b ... Detection sensor (detection means)
36 ... engaging member 40 ... governor rope 41 ... governor sheave 50 ... compen rope

Claims (4)

A fixed frame having an opening part in a part thereof, and a movable frame that is rotatably provided on the fixed frame and that opens and closes the opening part of the fixed frame by the pivoting operation, and the elevator includes the fixed frame and the movable frame. An anti-rest member that surrounds the rope connected to the car and
A drive source for rotating the movable frame;
Detecting means for detecting the approach of the elevator car to the steadying member and outputting a signal;
Based on the signal output from the detection means, the movable frame is rotated via the drive source to open the open portion of the fixed frame and to the steadying member of the connecting portion of the rope and the car. Control means for allowing passage;
Comprising
The movable frame is in the form of a long plate, and a middle part of the movable frame is rotatably supported via a rotation shaft, and an engagement roller is provided at one end in the longitudinal direction of the movable frame with the rotation shaft as a boundary. A rope steadying device for an elevator , wherein a balance weight is attached to the other end in the direction .   The elevator rope steadying apparatus according to claim 1, wherein the rope is at least one of an elevator main rope, a governor rope, and a compensating rope.   The elevator according to claim 1 or 2, wherein a protection member for the rope passing through the inside of the fixed frame and the movable frame is provided on inner surfaces of the fixed frame and the movable frame of the steadying member. Rope steady rest device.   4. A mechanical means for mechanically rotating the movable frame when the movable frame is not rotated by the drive source is provided. An elevator rope steady rest device according to claim 1.

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