JP2016124694A - Swing prevention apparatus for control cable and elevator apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing prevention apparatus for control cable and an elevator apparatus in which swing of a control cable is prevented with a simple and cheap construction.SOLUTION: There is provided a swing prevention apparatus for control cable whose one end is connected to lower part of a cage, whose the other end is connected to a fixing tool arranged on elevation path inner wall, and which prevents swing of a control cable hung on both ends. The apparatus comprises a guide pulley which is arranged on the control cable and which moves in the same direction together with movement of the cage in elevation direction. The guide pulley comprises a pulley which rotates on the control cable together with the movement of the control cable when the control cable moves together with movement of the cage in elevation direction; and a guide plate sandwiching the pulley from front and backside.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control cable shake prevention device and an elevator device, and in particular, one end is connected to a lower part of a car and the other end is connected to a fixture on an inner wall of a hoistway so that the control cable hanging from both ends is shaken. The present invention is suitable for application to a control cable shake prevention device and an elevator device to be prevented.

  Conventionally, an elevator apparatus includes a control cable (also referred to as a tail cord) for operation control and power supply between a car and a control panel. The control cable has one end connected to the lower part of the car and the other end connected to a fixture on the inner wall of the hoistway. When the car moves in the up-and-down direction, it moves with the movement of the car.

  The control cable usually hangs down in the hoistway due to its own weight and is stationary, but if the car moves in the hoisting direction or the building shakes due to strong winds or earthquakes, it may swing around in the hoistway. . In this case, there is a risk that the control cable may get caught in the various devices in the hoistway or between the various devices and the hoistway wall and get damaged.

  Therefore, in the current elevator apparatus, a protective wire or the like is installed between various devices and the hoistway wall to prevent the control cable from being caught.

  In Patent Document 1, a magnet is embedded in a sheath of a control cable suspended along the inner wall of a hoistway, and a magnetic body is embedded in an inner wall of the hoistway at a position facing the embedded magnet. Has been attracted by magnetic force, and a control cable damping device is disclosed in which the control cable is restrained in the hoistway.

Japanese Patent No. 5277723

  However, in the technique described in Patent Document 1, since it is necessary to embed a magnet in the sheath of the control cable, there is a problem that the cost and weight of the control cable increase.

  In the technique described in Patent Document 1, the magnetic body embedded in the inner wall of the hoistway is an electromagnet capable of switching the magnetism, and the magnetism is switched according to the movement of the car in the lifting / lowering direction, and the control cable is attracted to the hoistway. And separation. Therefore, in addition to the operation control of the car, the operation control of the electromagnet is required separately, and there is a problem that the control system becomes complicated.

  The present invention has been made in consideration of the above points, and proposes a control cable shake prevention device and an elevator device that can prevent the control cable from shaking with a simple and inexpensive configuration.

  In order to solve such a problem, in the present invention, one end is connected to the lower part of the car, the other end is connected to a fixture on the inner wall of the hoistway, and the control cable that prevents the control cable from swinging from both ends is prevented. The anti-vibration device includes a guide pulley that is installed on the control cable and moves in the same direction as the car moves in the up-and-down direction, and the guide pulley moves when the control cable moves in the up-and-down direction of the car The pulley includes a pulley that rotates on the control cable as the control cable moves, and a guide plate that sandwiches the pulley from the front surface and the back surface.

  In order to solve such a problem, in the present invention, one end is connected to the lower part of the car and the other end is connected to a fixture on the inner wall of the hoistway to prevent the control cable from swinging from both ends. An elevator apparatus equipped with a cable runout prevention device is provided with a guide pulley that is installed on a control cable and moves in the same direction as the car moves in the up-and-down direction, and the guide pulley moves along with the movement of the car in the up-and-down direction. When the control cable is moved, the pulley includes a pulley that rotates on the control cable as the control cable moves, and a guide plate that sandwiches the pulley from the front surface and the back surface.

  According to the present invention, it is possible to prevent the control cable from swinging with a simple and inexpensive configuration.

It is a whole block diagram of an elevator apparatus. It is a front lineblock diagram of a guide pulley. It is a side block diagram of a guide pulley. It is a front lineblock diagram of a maintenance machine at the time of opening part closing. It is a front lineblock diagram of a holding machine at the time of opening opening. It is a top surface lineblock diagram of a holding machine.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Whole structure of elevator apparatus FIG. 1: shows the whole structure of the elevator apparatus 1 in this Embodiment. The elevator apparatus 1 includes a car 2 that accommodates passengers, a main rope 3 that raises and lowers the car 2, a control cable 6 that has one end connected to the lower portion of the car 2 and the other end connected to the fixture 4. Prepare. The fixture 4 is fixedly installed on the inner wall of the hoistway 5 and suspends the control cable 6.

  Here, in the elevator apparatus 1 according to the present embodiment, a guide pulley 7 that is installed on the control cable 6 between one end and the other end of the control cable 6 and moves between the one end and the other end, and a hoistway And a plurality of holding machines 8 which are arranged on the drooping line of the control cable 6 suspended along the inner wall 5 and fixedly installed on the inner wall of the hoistway 5. In addition, the apparatus consisting of the guide pulley 7 and the plurality of holding machines 8 is referred to as a control cable shake prevention apparatus here.

  The guide pulley 7 moves in the same direction as the moving direction of the car 2 as the control cable 6 moves when the control cable 6 moves along with the movement of the car 2 in the up-and-down direction. For example, when the car 2 moves in the upward direction, the guide pulley 7 also moves in the upward direction (the direction of arrow A).

  When the guide pulley 7 moves in the upward direction, the guide pulley 7 moves while collecting the control cable 6 held by the holding machine 8. When the guide pulley 7 moves in the downward direction, the holding pulley 8 holds the control cable 6. Move while. Details will be described later with reference to FIGS.

(2) Configuration of Guide Pulley The configuration of the guide pulley 7 will be described with reference to FIGS. 2 and 3. 2 shows an enlarged front configuration of the guide pulley 7 when viewed from the same direction as FIG. 1, and FIG. 3 shows a side configuration of the guide pulley 7 when viewed from the direction of the arrow X in FIG.

  The guide pulley 7 includes a cylindrical pulley 71, a shaft 72 that serves as a rotation shaft of the pulley 71, two guide plates 73 that sandwich the pulley 71 from the front surface and the back surface (both sides on the circular side), and a slip prevention roller 74. And a shaft 75 for slip-off prevention roller.

  The pulley 71 rotates on the shaft 72 by the frictional force with the control cable 6 and moves on the control cable 6. The guide plate 73 has a bearing portion of a shaft 72 and a shaft 75 for preventing slippage.

  The slip prevention roller 74 has a cylindrical shape, and is installed at the left and right positions when the pulley 71 is viewed from the front. The shaft 75 for slip prevention roller is passed through the inside of the slip prevention roller 74 and is rotatably fixed to the bearing portion of the guide plate 73.

  When the car 2 moves in the up-and-down direction and the control cable 6 moves, the pulley 71 and the slip-off preventing roller 74 are rotated by the frictional force with the control cable 6. The guide pulley 7 moves in the same direction as the moving direction of the car 2 as the control cable 6 moves. Since the control cable 6 passes between the pulley 71 and the slip prevention roller 74, it does not come off the pulley 71.

  By installing the guide pulley 7 on the control cable 6, a downward load from the guide pulley 7 is applied to the control cable 6 in addition to its own weight. Therefore, the vibration of the control cable 6 suspended from the lower portion of the car 2 and the fixture 4 can be suppressed.

(3) Configuration of Holding Machine The configuration of the holding machine 8 will be described with reference to FIGS. 4 and 5 show a front configuration of the holder 8 when viewed from the direction of the arrow X in FIG. FIG. 4 is a front configuration of the holder 8 when the opening is closed, and FIG. 5 is a front configuration of the holder 8 when the opening is opened. FIG. 6 shows the top structure of the holder 8 when viewed from the direction of arrow Y in FIG.

  As shown in FIGS. 4 to 6, the retainer 8 includes a case 81, a rotating shaft 82, and an opening / closing bar 83. The case 81 has a U-shape consisting of three sides when viewed from above, and one side is fixed to the inner wall of the hoistway 5 and the other two sides protrude to form an opening 84. The width of the opening 84 is sufficiently larger than the distance between the two guide plates 73 in order to allow the guide pulley 7 to move in the ascending / descending direction while passing through the inside of the holder 8.

  The rotary shaft 82 is formed by, for example, a torsion spring or the like, and holds the open / close bar 83 rotatably. The rotary shaft 82 maintains the open / close bar 83 in a horizontal state when the load on the open / close bar 83 is in an unloaded state, and when the load on the open / close bar 83 is applied in the direction of arrow A or in the reverse direction, that is, in the up / down direction, The opening / closing bar 83 is held while being rotated.

  The open / close bar 83 is rotatably held by the rotary shaft 82, and in a no-load state, maintains the horizontal state and closes the opening 84. When a load is applied in the ascending / descending direction, it rotates about the rotation shaft 82 and opens the opening 84. When the load state is changed to the no-load state again, the horizontal state at the initial position is restored by the spring force of the rotating shaft 82.

  Here, when the car 2 moves in the upward direction, the guide pulley 7 also moves in the upward direction. When the guide pulley 7 moves in the upward direction, the upper end of the guide plate 73 comes into contact with the open / close bar 83 of the holder 8 and pushes up the open / close bar 83 to open the opening 84.

  When the guide pulley 7 further moves in the upward direction with the opening 84 opened, the control cable 6 is wound around the pulley 71 and moved to the outside of the holder 8. When the guide pulley 7 further rises and passes through the opening / closing bar 83, the opening / closing bar 83 is in a no-load state and returns to the horizontal state that is the initial position.

  Next, when the car 2 moves in the downward direction, the guide pulley 7 also moves in the downward direction. When the guide pulley 7 moves in the descending direction, the lower end of the guide plate 73 comes into contact with the opening / closing bar 83 of the holder 8, and the opening / closing bar 83 is pushed down to open the opening 84.

  When the guide pulley 7 further moves in the downward direction with the opening 84 opened, the control cable 6 is separated from the pulley 71 and is housed and held in the holder 8. When the guide pulley 7 further descends and passes through the opening / closing bar 83, the opening / closing bar 83 is in a no-load state and returns to the horizontal state that is the initial position.

(4) Effects of this Embodiment As described above, according to the control cable shake preventing apparatus and the elevator apparatus 1 including this control cable shake preventing apparatus in the present embodiment, the guide pulley 7 is provided on the control cable 6. Are installed on the movement line of the guide pulley 7, and when the car 2 moves in the ascending direction, the guide pulley 7 also moves in the ascending direction to push up the opening / closing bar 83 of the holding machine 8 and hold it. When the control cable 6 held in the machine 8 is collected and the car 2 moves in the lowering direction, the guide pulley 7 also moves in the lowering direction and pushes down the opening / closing bar 83 of the holding machine 8. It was made to hold.

  By adopting the above configuration, even when the car 2 moves in the up-and-down direction or when the building shakes due to strong winds or earthquakes, the control is suspended from the lower part of the car 2 and the fixture 4. It is possible to prevent the cable 6 from swinging.

(5) Other Embodiments In the above-described embodiment, the open / close bar 83 has a single-open structure that rotates about the rotation shaft 82. However, the present invention is not limited to this, and each of the two sides that form the opening 84 is provided. Two rotating shafts may be provided, and a double-open structure in which two open / close bars open and close around the respective rotating shafts may be used. In this case, the impact at the time of contact with the guide plate 73 can be dispersed.

DESCRIPTION OF SYMBOLS 1 Elevator apparatus 2 Car 3 Main rope 4 Fixing tool 5 Hoistway 6 Control cable 7 Guide pulley 71 Pulley 72 Shaft 73 Guide plate 74 Detachment roller 8 Holding machine 81 Case 82 Rotating shaft 83 Opening / closing bar 84 Opening

Claims (8)

In the control cable runout prevention device for preventing one end of the control cable from hanging from both ends, one end connected to the lower part of the car and the other end connected to a fixture installed on the inner wall of the hoistway.
A guide pulley that is installed on the control cable and moves in the same direction as the car moves in the up-and-down direction;
The guide pulley is
When the control cable moves with the movement of the elevator car in the up-and-down direction, a pulley that rotates on the control cable with the movement of the control cable;
And a guide plate for sandwiching the pulley from the front surface and the back surface. The control cable is suspended along the inner wall of the hoistway,
Provided with a plurality of holding machines on the vertical line of the control cable,
The holding machine is
The control cable shake prevention device according to claim 1, wherein the control cable is held or released when the guide pulley passes. The holding machine is
A U-shaped case consisting of three sides;
An open / close bar installed in the case,
The case is
One of the three sides is fixed to the inner wall of the hoistway, the other two sides protrude perpendicular to the one side, and an opening is formed between the two sides.
The opening / closing bar is
In an unloaded state, the opening is closed,
The control cable shake prevention device according to claim 2, wherein the opening is opened in a state in which a load is applied in the ascending / descending direction. The opening / closing bar is
By maintaining the horizontal state in the no-load state, the opening is closed,
The state in which the load is applied in the ascending / descending direction, the opening is opened by rotating around a rotation shaft installed on one of the two sides. The control cable shake prevention apparatus as described. The guide pulley is
When the car moves in the upward direction, it moves in the same direction,
When passing through the holder, the opening and closing bar is pushed up by the guide plate to open the opening, and the control cable held by the holder is recovered from the opening,
When the car moves in the downward direction, it moves in the same direction,
5. The control cable runout according to claim 4, wherein when passing through the holding machine, the opening and closing bar is pushed down by the guide plate to open the opening, and the holding machine holds the control cable. Prevention device. The guide pulley is
The anti-vibration device for a control cable according to claim 5, further comprising a slip-off preventing roller that holds the pulley so as not to be detached from the control cable. The opening is
The control cable shake preventing apparatus according to claim 6, wherein the control cable shake preventing apparatus is larger than a distance between the guide plates. In an elevator apparatus equipped with a control cable runout prevention device for preventing the runout of the control cable hanging from both ends, one end connected to the lower part of the car and the other end connected to a fixture installed on the inner wall of the hoistway ,
A guide pulley that is installed on the control cable and moves in the same direction as the car moves in the up-and-down direction;
The guide pulley is
When the control cable moves with the movement of the elevator car in the up-and-down direction, a pulley that rotates on the control cable with the movement of the control cable;
An elevator apparatus comprising: a guide plate that sandwiches the pulley from a front surface and a back surface.

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