Control cable supporting device of elevator

Abstract

The invention provides a control cable supporting device of an elevator, which can realize light weight of an elevator car. In a control cable support device (7) of an elevator, a reel device (71) has a reel (713) around which a control cable (6) connected to a car (2) is wound. The holding device (72) holds the control cable (6) fed from the reel (713). The linkage mechanism (74) rotates the spool (713) in the direction in which the control cable (6) is wound when the car (2) moves upward. The reel device (71) is provided above the range of movement of the car (2). The holding device (72) is provided on the upper part of the car (2).

Description

Technical Field

[0001] The present disclosure relates to a control cable supporting device of an elevator for supporting a control cable connected to a car. Background Art

[0002] Patent Document 1 discloses an elevator that supports the middle portion of a control cable hanging from the bottom of a car by means of a cable supporting unit.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2011-26062 Summary of the invention

[0006] Problems to be solved by the invention

[0007] In the conventional elevator disclosed in Patent Document 1, since the control cable hangs down from the lower part of the car, the load of the control cable is applied to the lower part of the car. Therefore, in the conventional elevator, it is necessary to improve the strength of the lower part of the car. As a result, in the conventional elevator, the weight of the car becomes larger.

[0008] The present disclosure is made to solve the above-mentioned problems, and an object of the present disclosure is to provide an elevator control cable supporting device capable of reducing the weight of a car.

[0009] Means for solving problems

[0010] The control cable support device of the elevator disclosed in the present invention comprises: a drum device, which has a drum for winding a control cable connected to a car; a holding device, which holds the control cable sent out from the drum; and a rotational force applying part, which rotates the drum in the direction of winding the control cable when the car moves upward, one of the drum device and the holding device is used as a car side device, and the other is used as a support side device, the car side device is arranged on the upper part of the car, and the support side device is arranged at a position above the moving range of the car.

[0011] Effects of the Invention

[0012] According to the control cable supporting device of the elevator disclosed in the present invention, it is possible to reduce the weight of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view showing the main parts of the elevator according to Embodiment 1.

[0014] Figure 2 It is a side view showing the main part of the elevator according to Embodiment 2.

[0015] Figure 3It is a side view showing the main part of the elevator according to Embodiment 3.

[0016] Figure 4 It is a side view showing the main part of the elevator according to the fourth embodiment.

[0017] Figure 5 It is a side view showing the main part of the elevator according to Embodiment 5.

[0018] Figure 6 It is a side view showing the main parts of the elevator according to Embodiment 6.

[0019] Figure 7 It is a side view showing the main parts of the elevator according to Embodiment 7.

[0020] Figure 8 Yes means Figure 7 An enlarged view of the winding device and adjustment mechanism.

[0021] Fig. 9 Yes means Figure 8 A top view of the reel device and adjustment mechanism.

[0022] Fig.10 It means along Fig. 9 The front view of the winding device and the adjustment mechanism when observed by arrow A.

[0023] Fig.11 It is a top view showing the drum device and adjustment mechanism of the elevator according to the eighth embodiment.

[0024] Fig.12 It means along Fig.11 The front view of the winding device and the adjustment mechanism when observed by arrow B.

[0025] Fig.13 It is a top view showing the drum device and adjustment mechanism of the elevator according to the ninth embodiment.

[0026] Fig.14 It means along Fig.13 The front view of the winding device and the adjustment mechanism when observed with arrow C.

[0027] Description of symbols

[0028] 2: car, 4: traction machine, 6: control cable, 21: car suspension wheel, 42: driving rope pulley, 71: winding device, 72: holding device, 74: linkage mechanism (rotational force applying part), 75: linkage mechanism (rotational force applying part), 76: elastic body (rotational force applying part), 77: adjustment mechanism, 713: winding drum. DETAILED DESCRIPTION

[0029] The method for implementing the object of the present disclosure is described with reference to the accompanying drawings. In each figure, the same or equivalent parts are marked with the same reference numerals, and repeated descriptions are appropriately simplified or omitted. In addition, the object of the present disclosure is not limited to the following embodiments, and any constituent element of the embodiment can be deformed or omitted without departing from the scope of the present disclosure.

[0030] Implementation method 1.

[0031] Figure 1 1 is a side view showing the main part of the elevator of Embodiment 1. In the figure, a car 2 and a counterweight (not shown) are suspended in a hoistway 1 by a main rope 3. A pair of car suspension wheels 21 are provided at the lower part of the car 2. A counterweight suspension wheel (not shown) is provided at the upper part of the counterweight.

[0032] A hoisting machine 4 and a control panel 5 are provided at the upper portion of the hoistway 1. The hoisting machine 4 and the control panel 5 are supported by a support member 10 fixed in the hoistway 1. Therefore, the elevator of the present embodiment is a machine room-less elevator having no machine room.

[0033] The hoisting machine 4 includes a hoisting machine body 41 and a driving sheave 42 .

[0034] The hoisting machine body 41 has a motor. The driving sheave 42 is rotatably provided on the hoisting machine body 41. The driving sheave 42 rotates relative to the hoisting machine body 41 by the driving force of the motor of the hoisting machine body 41.

[0035] The control panel 5 controls the operation of the elevator. The rotation of the drive sheave 42 relative to the traction machine body 41 is controlled by the control panel 5.

[0036] The main rope 3 has a first end 3a and a second end not shown. The first end 3a and the second end are connected to the support member 10 at the upper part of the hoistway 1. The main rope 3 is wound from the first end 3a in the order of a pair of car suspension sheaves 21, a drive sheave 42, and a counterweight suspension sheave to the second end. Therefore, the main rope 3 suspends the car 2 and the counterweight in a 2:1 rope winding method.

[0037] The main rope 3 moves according to the rotation of the driving sheave 42. The pair of car suspension wheels 21 and the counterweight suspension wheels rotate according to the movement of the main rope 3. Thus, the car 2 and the counterweight move in the up-down direction in the hoistway 1 according to the rotation of the driving sheave 42. In addition, the pair of car suspension wheels 21 and the counterweight suspension wheels rotate according to the movement of the car 2 and the counterweight. The traction machine 4 and the control panel 5 are arranged at a position above the respective moving ranges of the car 2 and the counterweight.

[0038] The control cable 6 is connected to the control panel 5. A portion of the control cable 6 hangs down in the hoistway 1. The control cable 6 is connected to the car 2 in the hoistway 1. Thus, the control panel 5 and the car 2 can communicate with each other via the control cable 6. The control cable 6 moves in the hoistway 1 as the car 2 moves.

[0039] The control cable 6 is supported by a control cable support device 7. The control cable support device 7 includes a reel device 71, a holding device 72, and a linkage mechanism 74.

[0040] The winding drum device 71 is installed as a support-side device in the upper part of the hoistway 1. The winding drum device 71 as a support-side device is installed above the moving range of the car 2 and the counterweight.

[0041] The reel device 71 includes a reel support base 711 , a reel rotation shaft 712 , and a reel 713 .

[0042] The drum support 711 is fixed to the support member 10. The drum rotation shaft 712 is rotatably provided on the drum support 711. The drum rotation shaft 712 is horizontally arranged. In the present embodiment, the drum rotation shaft 712 is arranged parallel to the axis of the driving sheave 42.

[0043] The reel 713 is a cylindrical member fixed to the reel rotation shaft 712. The reel 713 is arranged coaxially with the reel rotation shaft 712. The reel 713 rotates integrally with the reel rotation shaft 712 relative to the reel support 711 around the axis of the reel 713.

[0044] The control cable 6 is wound around the reel 713. In the reel device 71, the control cable 6 is wound around the reel 713 and the control cable 6 is fed out from the reel 713 according to the rotation of the reel 713.

[0045] The holding device 72 is provided as a car-side device on the upper part of the car 2. The control cable 6 is connected to the car 2 from the control panel 5 via the drum device 71 and the holding device 72. The holding device 72 holds the control cable 6. The control cable 6 is connected to the equipment included in the car 2.

[0046] The linkage mechanism 74 is a rotation force applying portion that applies a rotation force to the drum 713. The linkage mechanism 74 rotates the drum 713 in a direction to wind up the control cable 6 when the car 2 moves upward. In addition, the linkage mechanism 74 rotates the drum 713 in a direction to send out the control cable 6 when the car 2 moves downward. That is, the linkage mechanism 74 rotates the drum 713 according to the movement of the car 2. The linkage mechanism 74 is provided at a position above the respective moving ranges of the car 2 and the counterweight.

[0047] The interlocking mechanism 74 mechanically interlocks the rotation of the winding drum 713 with the rotation of the driving sheave 42. Thus, the interlocking mechanism 74 applies the rotational force of the driving sheave 42 to the winding drum 713. The interlocking mechanism 74 includes a first pulley 741, a second pulley 742, and a transmission body 743.

[0048] The first pulley 741 is fixed as a first rotating member to the rotating shaft of the driving sheave 42. Thus, the first pulley 741 rotates integrally with the driving sheave 42 around the axis of the driving sheave 42.

[0049] The second pulley 742 is fixed as a second rotating member to the drum rotating shaft 712. Thus, the second pulley 742 rotates integrally with the drum rotating shaft 712 and the drum 713 around the axis of the drum 713.

[0050] The transmission body 743 is an endless belt wound between the first pulley 741 and the second pulley 742. The transmission body 743 moves according to the rotation of the first pulley 741. The second pulley 742 rotates according to the movement of the transmission body 743. Thus, the rotation of the drive sheave 42 is transmitted to the drum 713 via the first pulley 741, the transmission body 743 and the second pulley 742. The drum 713 rotates due to the rotation of the drive sheave 42 being transmitted to the drum 713. Thus, the drum 713 is linked to the rotation of the drive sheave 42 through the linkage mechanism 74.

[0051] The drum 713 is linked to the rotation of the driving sheave 42 when the car 2 moves upward through the linkage mechanism 74, thereby rotating in the direction of winding the control cable 6. In addition, the drum 713 is linked to the rotation of the driving sheave 42 when the car 2 moves downward through the linkage mechanism 74, thereby rotating in the direction of sending out the control cable 6.

[0052] In the interlocking mechanism 74 , the outer diameters of the first pulley 741 and the second pulley 742 are set so that the amount of winding and feeding of the control cable 6 by the drum 713 corresponds to the moving distance of the car 2 .

[0053] Next, the operation of the elevator will be described. When the control panel 5 controls the traction machine 4 to rotate the drive sheave 42, the car 2 and the counterweight move in the up-down direction in the hoistway 1. The rotation direction of the drive sheave 42 when the car 2 moves upward is opposite to the rotation direction of the drive sheave 42 when the car 2 moves downward.

[0054] When the car 2 moves upward, the drum 713 is linked to the rotation of the drive sheave 42 via the linkage mechanism 74, so that the drum 713 rotates in the direction of winding up the control cable 6. Thus, the drum 713 winds up the control cable 6 while the car 2 moves upward.

[0055] When the car 2 moves downward, the drum 713 is linked to the rotation of the drive sheave 42 through the linkage mechanism 74, so that the drum 713 rotates in the direction of sending out the control cable 6. Thus, the drum 713 sends out the control cable 6, and the car 2 moves downward.

[0056] In such an elevator control cable support device 7, the drum device 71 is arranged at a position above the moving range of the car 2. In addition, the holding device 72 is arranged at the upper part of the car 2. And when the car 2 moves upward, the drum 713 rotates in the direction of winding the control cable 6 through the linkage mechanism 74. Therefore, the control cable 6 can be hung from a position above the moving range of the car 2. Thereby, the load of the control cable 6 can be suppressed from being applied to the car 2. In addition, since the control cable 6 can be prevented from hanging from the lower part of the car 2, it is not necessary to increase the strength of the lower part of the car 2. Furthermore, it is not necessary to arrange the suspension device for suspending the control cable 6 at the lower part of the car 2. Therefore, the weight reduction of the car 2 can be achieved. In addition, the material cost of the car 2 can also be reduced.

[0057] In addition, since the control cable 6 can be prevented from hanging down from the lower part of the car 2, the imbalance of the car 2 due to the load of the control cable 6 can be suppressed. As a result, it is not necessary to provide a balancing weight in the car 2 for correcting the imbalance of the car 2, and the manufacturing operation of the car 2 can be easily performed, and the weight of the car 2 can be further reduced. In addition, since the control cable 6 can be prevented from being connected to the lower part of the car 2, the arrangement of the equipment provided at the lower part of the car 2 can be rationalized.

[0058] In addition, the interlocking mechanism 74 mechanically interlocks the rotation of the drum 713 and the driving sheave 42. Therefore, when the car 2 moves, it is possible to easily suppress the control cable 6 from becoming loose or excessive tension from being applied to the control cable 6.

[0059] Implementation method 2.

[0060] Figure 2 1 is a side view showing the main part of the elevator of Embodiment 2. In the figure, a machine room 20 is provided above the hoistway 1. The traction machine 4, the control panel 5, the drum device 71 and the linkage mechanism 74 are provided in the machine room 20. Therefore, the elevator of this embodiment becomes an elevator having a machine room 20.

[0061] The hoisting machine 4, the control panel 5, the drum device 71 and the interlocking mechanism 74 are supported on the floor 201 of the machine room 20. Thus, the hoisting machine 4, the control panel 5, the drum device 71 and the interlocking mechanism 74 are arranged above the moving range of the car 2 and the counterweight.

[0062] The main rope 3 is wound around the driving sheave 42 in the machine room 20. The control cable 6 is wound around the drum 713 in the machine room 20.

[0063] A main rope through hole (not shown) and a control cable through hole (not shown) are formed in the partition wall 202 forming the floor 201 of the machine room 20. The main rope through hole and the control cable through hole penetrate the partition wall 202. The main rope 3 wound on the driving sheave 42 passes through the main rope through hole from the machine room 20 to reach the shaft 1. The control cable 6 sent from the drum 713 passes through the control cable through hole from the machine room 20 to reach the shaft 1.

[0064] The first end 3a of the main rope 3 is connected to the upper part of the car 2. The second end of the main rope 3 is connected to the upper part of the counterweight. Therefore, the main rope 3 suspends the car 2 and the counterweight in a 1:1 roping method. The other structures and operations are the same as those of the first embodiment.

[0065] Thus, in the elevator having the machine room 20, the control cable 6 can be hung from a position above the moving range of the car 2. In addition, the control cable 6 can be prevented from hanging from the lower part of the car 2. Therefore, in the elevator having the machine room 20, the same effect as that of the first embodiment can be obtained.

[0066] In Embodiments 1 and 2, the transmission body 743 is an endless belt. However, the transmission body 743 is not limited thereto, and may be an endless chain, for example. When the transmission body 743 is a chain, the first rotating member and the second rotating member around which the transmission body 743 is wound are sprockets.

[0067] Implementation method 3.

[0068] Figure 3 It is a side view showing the main part of the elevator according to Embodiment 3. The control cable supporting device 7 includes a winding drum device 71 , a holding device 72 , and an interlocking mechanism 75 .

[0069] The winding drum device 71 is provided as a car-side device on the upper portion of the car 2. The structure of the winding drum device 71 is the same as that of the first embodiment.

[0070] The holding device 72 is provided as a support side device at the upper part of the hoistway 1. The holding device 72 as a support side device is provided at a position above the moving range of the car 2 and the counterweight. The holding device 72 is supported by the supporting member 10. The structure of the holding device 72 is the same as that of the first embodiment.

[0071] The control cable 6 is connected to the car 2 from the control panel 5 via the holding device 72 and the winding drum device 71. The holding device 72 holds the control cable 6. In the winding drum device 71, the control cable 6 is wound around the winding drum 713. The control cable 6 is connected to the equipment included in the car 2.

[0072] The linkage mechanism 75 is a rotation force applying unit that applies a rotation force to the drum 713. The linkage mechanism 75 rotates the drum 713 in a direction to wind up the control cable 6 when the car 2 moves upward. In addition, the linkage mechanism 75 rotates the drum 713 in a direction to send out the control cable 6 when the car 2 moves downward. That is, the linkage mechanism 75 rotates the drum 713 according to the movement of the car 2. The linkage mechanism 75 is provided in the car 2.

[0073] The interlocking mechanism 75 mechanically interlocks the drum 713 with the rotation of one car suspending sheave 21. Thus, the interlocking mechanism 74 applies the rotational force of one car suspending sheave 21 to the drum 713. The interlocking mechanism 75 includes a first pulley 751, a second pulley 752, a transmission body 753, and a guide device 754.

[0074] The first pulley 751 is fixed as a first rotating member to the rotating shaft of the car suspending sheave 21. Thus, the first pulley 751 rotates integrally with the car suspending sheave 21 around the axis of the car suspending sheave 21.

[0075] The second pulley 752 is fixed as a second rotating member to the drum rotating shaft 712. Thus, the second pulley 752 rotates integrally with the drum rotating shaft 712 and the drum 713 around the axis of the drum 713.

[0076] The transmission body 753 is an endless belt wound between the first pulley 751 and the second pulley 752. The transmission body 753 moves according to the rotation of the first pulley 751. The second pulley 752 rotates according to the movement of the transmission body 753. Thus, the rotation of the car suspension sheave 21 is transmitted to the drum 713 via the first pulley 751, the transmission body 753 and the second pulley 752. The drum 713 rotates due to the rotation of the car suspension sheave 21 being transmitted to the drum 713. Thus, the drum 713 is linked to the rotation of the car suspension sheave 21 through the linkage mechanism 75.

[0077] In the interlocking mechanism 75 , the outer diameters of the first pulley 751 and the second pulley 752 are set so that the amount of winding and feeding of the control cable 6 by the drum 713 corresponds to the moving distance of the car 2 .

[0078] The guide device 754 is configured to arrange the transmission body 753 away from the car 2. The guide device 754 includes a plurality of guide rollers 755.

[0079] The plurality of guide rollers 755 are provided at mutually separated positions of the car 2. The transmission body 753 is wound around the plurality of guide rollers 755. Thus, the transmission body 753 avoids the car 2 and reaches the winding device 71 from the car suspension pulley 21. The transmission body 753 moves according to the rotation of the first pulley 751 while being guided by the plurality of guide rollers 755.

[0080] Each car suspension wheel 21 rotates according to the movement of the car 2. The drum 713 is linked to the rotation of the car suspension wheel 21 when the car 2 moves upward through the linkage mechanism 75, so that the drum 713 rotates in the direction of winding the control cable 6. In addition, the drum 713 is linked to the rotation of the car suspension wheel 21 when the car 2 moves downward through the linkage mechanism 75, so that the drum 713 rotates in the direction of sending out the control cable 6. The other structures are the same as those in Embodiment 1.

[0081] Next, the operation of the elevator will be described. When the driving sheave 42 is rotated by controlling the traction machine 4 through the control panel 5, the car 2 and the counterweight move in the up-down direction in the hoistway 1. When the car 2 moves in the up-down direction, each car suspension pulley 21 rotates according to the movement of the car 2. The rotation direction of the car suspension pulley 21 when the car 2 moves upward is opposite to the rotation direction of the car suspension pulley 21 when the car 2 moves downward.

[0082] When the car 2 moves upward, the drum 713 is linked to the rotation of the car suspension sheave 21 through the linkage mechanism 75, so that the drum 713 rotates in the direction of winding the control cable 6. Thus, the drum 713 winds the control cable 6 while the car 2 moves upward.

[0083] When the car 2 moves downward, the drum 713 is linked to the rotation of the car suspension sheave 21 through the linkage mechanism 75, so that the drum 713 rotates in the direction of sending out the control cable 6. Thus, the drum 713 sends out the control cable 6 while the car 2 moves downward.

[0084] In such a control cable support device 7 of an elevator, a holding device 72 is arranged at a position above the moving range of the car 2. In addition, a reel device 71 is arranged at the upper part of the car 2. And when the car 2 moves upward, the reel 713 rotates in the direction of winding the control cable 6 through the linkage mechanism 75. Therefore, the control cable 6 can be hung from a position above the moving range of the car 2. In addition, the control cable 6 can be prevented from hanging from the lower part of the car 2. Therefore, the same effect as that of embodiment 1 can be obtained. In addition, in the case where the reel device 71 cannot be arranged at the upper part of the hoistway 1 from the perspective of the installation space, etc., the holding device 72 with a smaller installation space than the reel device 71 can also be arranged at the upper part of the hoistway 1. Thereby, the degree of freedom of the installation of the control cable support device 7 can be improved.

[0085] In addition, the interlocking mechanism 75 mechanically interlocks the drum 713 with the rotation of the car suspending sheave 21. Therefore, when the car 2 moves, it is possible to easily suppress the control cable 6 from becoming loose or excessive tension from being applied to the control cable 6.

[0086] Implementation method 4.

[0087] Figure 4 1 is a side view showing the main part of the elevator of Embodiment 4. In the figure, a machine room 20 is provided above the hoistway 1. The traction machine 4, the control panel 5 and the holding device 72 are provided in the machine room 20. Therefore, the elevator of this embodiment is an elevator having a machine room 20.

[0088] The hoisting machine 4, the control panel 5, and the holding device 72 are supported by the floor 201 of the machine room 20. Thus, the hoisting machine 4, the control panel 5, and the holding device 72 are provided above the respective moving ranges of the car 2 and the counterweight.

[0089] The main rope 3 is wound around the driving sheave 42 in the machine room 20. The control cable 6 is held by the holding device 72 in the machine room 20.

[0090] A main rope through hole (not shown) and a control cable through hole (not shown) are formed in a partition wall 202 forming a floor 201 of the machine room 20. The main rope through hole and the control cable through hole penetrate the partition wall 202. The main rope 3 wound around the driving sheave 42 passes through the main rope through hole from the machine room 20 to reach the inside of the hoistway 1. The control cable 6 hanging from the holding device 72 passes through the control cable through hole from the machine room 20 to reach the inside of the hoistway 1.

[0091] The first end 3a and the second end of the main rope 3 are connected to the partition wall 202. A car suspension pulley 21 is provided on the upper part of the car 2. The main rope 3 is wound from the first end 3a in the order of the car suspension pulley 21, the drive sheave 42, and the counterweight suspension pulley to the second end. Therefore, the main rope 3 suspends the car 2 and the counterweight in a 2:1 rope winding method.

[0092] The linkage mechanism 75 mechanically links the rotation of the drum 713 and the car suspension sheave 21. Thus, the linkage mechanism 74 applies the rotational force of the car suspension sheave 21 to the drum 713. The linkage mechanism 75 includes a first pulley 751, a second pulley 752, and a transmission body 753. The structures of the first pulley 751, the second pulley 752, and the transmission body 753 are the same as those in Embodiment 3.

[0093] In this embodiment, since the first pulley 751 and the second pulley 752 are both arranged on the upper part of the car 2, the transmission body 753 can be wound between the first pulley 751 and the second pulley 752 without using the guide device 754. Therefore, in this embodiment, the guide device 754 in Embodiment 3 is not provided in the car 2. The transmission body 753 in this embodiment is wound between the first pulley 751 and the second pulley 752 without being wound around the guide rollers 755 of the guide device 754. The other structures and actions are the same as those in Embodiment 3.

[0094] Thus, in an elevator having a machine room 20, the control cable 6 can be hung from a position above the moving range of the car 2. In addition, the control cable 6 can be prevented from hanging from the lower part of the car 2. Therefore, the same effect as that of the third embodiment can be obtained.

[0095] In Embodiments 3 and 4, the transmission body 753 is an endless belt. However, the transmission body 753 is not limited thereto, and may be an endless chain, for example. When the transmission body 753 is a chain, the first rotating member and the second rotating member around which the transmission body 753 is wound are sprockets.

[0096] Implementation method 5.

[0097] Figure 5 1 is a side view showing the main part of the elevator of Embodiment 5. In this embodiment, an elastic body 76 is used instead of the interlocking mechanism 74 in Embodiment 1. The control cable support device 7 includes a drum device 71, a holding device 72, and an elastic body 76. The structures of the drum device 71 and the holding device 72 are the same as those in Embodiment 1.

[0098] The elastic body 76 is a rotational force applying portion that applies a rotational force to the drum 713. The elastic body 76 is provided on the drum support stand 711. The elastic body 76 applies an elastic restoring force as a rotational force to the drum 713 in the direction of winding the control cable 6 via the drum rotating shaft 712. Thus, the elastic restoring force of the elastic body 76 is always applied to the drum 713 in the direction of winding the control cable 6. As the elastic body 76, a torsion spring, a spiral spring, or the like is used.

[0099] When the car 2 moves upward, the drum 713 rotates in the direction of winding the control cable 6 by the elastic restoring force of the elastic body 76. In addition, when the car 2 moves downward, the drum 713 rotates in the direction of feeding the control cable 6 by overcoming the elastic restoring force of the elastic body 76 by the dead weight of the car 2. The other structures are the same as those in the first embodiment.

[0100] Next, the operation of the elevator will be described. When the control panel 5 controls the traction machine 4 to rotate the drive sheave 42, the car 2 and the counterweight move in the up-down direction in the hoistway 1. The rotation direction of the drive sheave 42 when the car 2 moves upward is opposite to the rotation direction of the drive sheave 42 when the car 2 moves downward.

[0101] When the car 2 moves upward, the drum 713 rotates in the direction of winding up the control cable 6 due to the elastic restoring force of the elastic body 76. Thus, the drum 713 winds up the control cable 6 while the car 2 moves upward.

[0102] When the car 2 moves downward, the drum 713 overcomes the elastic restoring force of the elastic body 76 by the dead weight of the car 2 and rotates in the direction of sending out the control cable 6. Thus, the drum 713 sends out the control cable 6 while the car 2 moves downward.

[0103] In such an elevator control cable support device 7, the same effects as those of Embodiment 1 can be obtained. In addition, the elastic restoring force of the elastic body 76 can be applied to the drum 713 as a rotational force. As a result, the number of components of the control cable support device 7 can be reduced compared with Embodiments 1 to 4, and the structure of the control cable support device 7 can be simplified. Furthermore, it is not necessary to interlock the drum 713 with the rotation of the drive sheave 42, or to interlock the drum 713 with the rotation of the car suspension sheave 21. As a result, the degree of freedom of the installation position of the drum device 71 can be increased, and the installation operation of the control cable support device 7 can be easily performed.

[0104] In addition, when the car 2 moves, the control cable 6 can always be kept in a state of tension by the elastic restoring force of the elastic body 76. Thus, the lateral vibration of the control cable 6 can be more reliably suppressed when the car 2 moves. Therefore, when the car 2 moves, the control cable 6 can be more reliably prevented from being hooked on the beams in the hoistway 1.

[0105] Implementation method 6.

[0106] Figure 6 1 is a side view showing the main part of the elevator of Embodiment 6. In the figure, a machine room 20 is provided above the hoistway 1. The traction machine 4, the control panel 5, the drum device 71 and the elastic body 76 are provided in the machine room 20. Therefore, the elevator of this embodiment becomes an elevator having a machine room 20.

[0107] The hoisting machine 4, the control panel 5, the drum device 71 and the elastic body 76 are supported by the floor 201 of the machine room 20. Thus, the hoisting machine 4, the control panel 5, the drum device 71 and the elastic body 76 are arranged above the moving range of the car 2 and the counterweight.

[0108] The main rope 3 is wound around the driving sheave 42 in the machine room 20. The control cable 6 is wound around the drum 713 in the machine room 20.

[0109] A main rope through hole (not shown) and a control cable through hole (not shown) are formed in the partition wall 202 forming the floor 201 of the machine room 20. The main rope through hole and the control cable through hole penetrate the partition wall 202. The main rope 3 wound on the driving sheave 42 passes through the main rope through hole from the machine room 20 to reach the shaft 1. The control cable 6 sent from the drum 713 passes through the control cable through hole from the machine room 20 to reach the shaft 1.

[0110] The first end 3a of the main rope 3 is connected to the upper part of the car 2. The second end of the main rope 3 is connected to the upper part of the counterweight. Therefore, the main rope 3 suspends the car 2 and the counterweight in a 1:1 roping method. The other structures and operations are the same as those of the fifth embodiment.

[0111] Thus, in an elevator having a machine room 20, the same effect as in Embodiment 1 can be obtained. In addition, the elastic restoring force of the elastic body 76 can be applied as a rotational force to the drum 713. Thus, in an elevator having a machine room 20, the same effect as in Embodiment 5 can be obtained.

[0112] Furthermore, in embodiments 5 and 6, a reel device 71 is provided as a support side device at a position above the respective moving ranges of the car 2 and the counterweight, and a retaining device 72 is provided as a car side device on the upper portion of the car 2. However, a retaining device 72 may be provided as a support side device at a position above the respective moving ranges of the car 2 and the counterweight, and a reel device 71 may be provided as a car side device on the upper portion of the car 2. In this way, the same effect as in embodiment 1 can be obtained. In addition, the structure of the control cable support device 7 can be simplified, and the setting operation of the control cable support device 7 can also be easily performed. Moreover, it is also possible to more reliably prevent the control cable 6 from being hooked on beams, etc. in the hoistway 1.

[0113] Implementation method 7.

[0114] Figure 7 1 is a side view showing the main part of the elevator of Embodiment 7. The control cable support device 7 has a drum device 71, a holding device 72, an elastic body 76, and an adjustment mechanism 77. The structures of the drum device 71, the holding device 72, and the elastic body 76 are the same as those of the sixth embodiment.

[0115] In the hoistway 1, a suspension reference line P is pre-set along the vertical direction. The holding device 72 is arranged on the suspension reference line P. When the car 2 moves in the up-down direction, the holding device 72 as a car-side device moves along the suspension reference line P. The position of the control cable 6 from the drum 713 to the holding device 72 is consistent with the suspension reference line P.

[0116] When the control cable 6 is wound around the drum 713, the control cable 6 is stacked on the outer peripheral surface of the drum 713. The stacking thickness of the control cable 6 relative to the drum 713 increases as the drum 713 winds up the control cable 6, and decreases as the drum 713 feeds out the control cable 6. Therefore, assuming that the position of the drum device 71 is fixed relative to the suspension reference line P, the position of the control cable 6 from the drum 713 to the holding device 72 deviates from the suspension reference line P due to the change in the stacking thickness of the control cable 6 relative to the drum 713.

[0117] The adjustment mechanism 77 adjusts the position of the drum device 71 relative to the suspension reference line P so as to maintain the position of the control cable 6 from the drum 713 to the holding device 72 in a state consistent with the suspension reference line P. The stacking thickness of the control cable 6 relative to the drum 713 changes according to the rotation of the drum 713. Therefore, the adjustment mechanism 77 adjusts the position of the drum device 71 relative to the suspension reference line P according to the rotation of the drum 713.

[0118] The adjustment mechanism 77 moves the drum device 71 in a direction in which the axis of the drum 713 is away from the suspension reference line P by the rotation of the drum 713 in the direction in which the control cable 6 is wound. In addition, the adjustment mechanism 77 moves the drum device 71 in a direction in which the axis of the drum 713 is close to the suspension reference line P by the rotation of the drum 713 in the direction in which the control cable 6 is fed out. Thus, even if the drum 713 rotates and the stacking thickness of the control cable 6 relative to the drum 713 changes, the position of the control cable 6 from the drum 713 to the holding device 72 can be maintained in a state in which it coincides with the suspension reference line P.

[0119] Figure 8 Yes means Figure 7 An enlarged view of the winding device 71 and the adjustment mechanism 77. Fig. 9 Yes means Figure 8 A top view of the reel device 71 and the adjustment mechanism 77. Fig.10 It means along Fig. 9 The front view of the reel device 71 and the adjustment mechanism 77 when viewed from the arrow A. In the present embodiment, the control cable 6 is in a belt shape. Therefore, in the present embodiment, the dimension of the control cable 6 in the width direction is greater than the dimension of the control cable 6 in the thickness direction. The control cable 6 is wound around the reel 713 while making the width direction of the control cable 6 coincide with the axial direction of the reel 713.

[0120] like Fig. 9 As shown, the control cable 6 from the drum 713 to the holding device 72 passes through the control cable passing hole 203 formed in the partition wall 202. The suspension reference line P is set as a straight line passing through the control cable passing hole 203.

[0121] In the reel device 71 , one reel support stand 711 is disposed on each side of the reel 713 in the axial direction of the reel 713 . The reel rotation shaft 712 and the reel 713 are supported by the two reel support stands 711 .

[0122] The adjustment mechanism 77 includes a pair of support rails 771 and a gear device 772 .

[0123] The pair of support rails 771 are horizontally fixed to the floor 201 of the machine room 20. The pair of support rails 771 are arranged parallel to each other. When the reel device 71 is viewed from above, the axis of the reel 713 is perpendicular to each support rail 771.

[0124] The reel support platform 711 is provided so as to be slidable one by one on a pair of support rails 771. Thus, the reel device 71 can move relative to each support rail 771 in the longitudinal direction of each support rail 771.

[0125] The gear device 772 is provided at a position farther from the reel 713 than the one reel support 711 in the axial direction of the reel 713. The gear device 772 includes a rack 773, a first gear 774, a second gear 775, and a third gear 776.

[0126] The rack 773 is fixed to the floor 201. The rack 773 is arranged in parallel with each support rail 771. The rack 773 is provided with a plurality of teeth arranged along the longitudinal direction of the rack 773.

[0127] The first gear 774 is fixed to the reel rotating shaft 712. Thus, the first gear 774 rotates integrally with the reel rotating shaft 712 and the reel 713 around the axis of the reel 713. The first gear 774 is arranged coaxially with the axis of the reel 713. A plurality of teeth arranged along the circumferential direction of the first gear 774 are provided on the outer periphery of the first gear 774.

[0128] The second gear 775 and the third gear 776 are arranged between the rack 773 and the first gear 774. The second gear 775 is arranged between the third gear 776 and the first gear 774. The rotation axes of the second gear 775 and the third gear 776 are attached to one of the reel support platforms 711. The axes of the second gear 775 and the third gear 776 are parallel to the axis of the first gear 774.

[0129] A plurality of teeth arranged along the circumferential direction of the second gear 775 are provided on the outer periphery of the second gear 775. In the present embodiment, the outer diameter of the second gear 775 is the same as the outer diameter of the first gear 774.

[0130] A plurality of teeth arranged in the circumferential direction of the third gear 776 are provided on the outer peripheral portion of the third gear 776. In the present embodiment, the outer diameter of the third gear 776 is larger than the outer diameter of the second gear 775.

[0131] The second gear 775 is meshed with the first gear 774 and the third gear 776. The third gear 776 is meshed with the second gear 775 and the rack 773. Thus, the second gear 775 and the third gear 776 rotate according to the rotation of the first gear 774.

[0132] The third gear 776 rotates, and the third gear 776 moves in the longitudinal direction of the rack 773 while meshing with the rack 773. Thus, the reel device 71 moves in the longitudinal direction of the support rail 771 according to the rotation of the reel rotating shaft 712 and the reel 713.

[0133] Therefore, the gear device 772 is operated according to the rotation of the drum 713 in the direction of winding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is away from the suspension reference line P. In addition, the gear device 772 is operated according to the rotation of the drum 713 in the direction of feeding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is close to the suspension reference line P.

[0134] The moving distance of the drum device 71 when the drum 713 rotates is equal to the change in the stacking thickness of the control cable 6 relative to the drum 713 when the drum 713 rotates by adjusting the gear ratio in the gear device 772. Therefore, when the drum 713 rotates, the position of the control cable 6 from the drum 713 to the holding device 72 is maintained at the position of the suspension reference line P by the movement of the drum device 71 relative to the support rail 771. The other structures are the same as those in the sixth embodiment.

[0135] In such an elevator control cable support device 7, the elastic restoring force of the elastic body 76 can be applied to the drum 713 as a rotational force. Therefore, the same effect as that of the sixth embodiment can be obtained. In addition, the adjustment mechanism 77 adjusts the position of the drum device 71 relative to the suspension reference line P according to the rotation of the drum 713. Therefore, even if the stacking thickness of the control cable 6 relative to the drum 713 changes, the position of the control cable 6 from the drum 713 to the holding device 72 can be maintained relative to the suspension reference line P. As a result, when the car 2 moves in the up and down direction, the control cable 6 in the hoistway 1 can be prevented from vibrating left and right.

[0136] Implementation method 8.

[0137] Fig.11 It is a top view showing the drum device 71 and the adjustment mechanism 77 of the elevator according to the eighth embodiment. Fig.12 It means along Fig.11 7. The front view of the reel device 71 and the adjustment mechanism 77 when viewed along the arrow B. The adjustment mechanism 77 includes a pair of support rails 771 and a speed reduction device 78. The structure of the pair of support rails 771 is the same as that of the seventh embodiment.

[0138] The speed reduction device 78 is provided at a position farther from the spool 713 than the one spool support 711 in the axial direction of the spool 713. The speed reduction device 78 includes a rack 781, a first sprocket 782, a second sprocket 783, a chain 784, and a rotating gear 785.

[0139] The rack 781 is fixed to the floor 201. The rack 781 is arranged in parallel with each support rail 771. The rack 781 is provided with a plurality of teeth arranged along the longitudinal direction of the rack 781.

[0140] The first sprocket 782 is fixed to the reel rotating shaft 712 as a first rotating member. Thus, the first sprocket 782 rotates integrally with the reel rotating shaft 712 and the reel 713 around the axis of the reel 713. The first sprocket 782 is arranged coaxially with the axis of the reel 713. A plurality of teeth arranged along the circumferential direction of the first sprocket 782 are provided on the outer periphery of the first sprocket 782.

[0141] The second sprocket 783 is arranged as a second rotating member at a position away from the first sprocket 782. In this embodiment, the second sprocket 783 is arranged below the first sprocket 782. The rotating shaft of the second sprocket 783 is attached to one of the reel support platforms 711. The axis of the second sprocket 783 is parallel to the axis of the first sprocket 782.

[0142] When the reduction gear 78 is viewed from above, the first sprocket 782 and the second sprocket 783 are respectively arranged at positions offset from the area of ​​the rack 773. In the present embodiment, when the reduction gear 78 is viewed from above, the first sprocket 782 and the second sprocket 783 are respectively arranged at positions farther from the reel support 711 than the rack 773.

[0143] A plurality of teeth arranged in the circumferential direction of the second sprocket 783 are provided on the outer peripheral portion of the second sprocket 783. In the present embodiment, the outer diameter of the second sprocket 783 is larger than the outer diameter of the first sprocket 782.

[0144] An endless chain 784 is wound as a transmission body between the first sprocket 782 and the second sprocket 783. Thus, the chain 784 meshes with the teeth of the first sprocket 782 and the second sprocket 783. The chain 784 moves according to the rotation of the first sprocket 782. The second sprocket 783 rotates according to the movement of the chain 784.

[0145] The rotating gear 785 is fixed to the rotating shaft of the second sprocket 783. Thus, the rotating gear 785 rotates integrally with the second sprocket 783 about the axis of the second sprocket 783. In the present embodiment, the outer diameter of the rotating gear 785 is smaller than the outer diameter of the second sprocket 783.

[0146] The rotating gear 785 is disposed between the second sprocket 783 and one of the reel support platforms 711. A plurality of teeth arranged along the circumferential direction of the rotating gear 785 are provided on the outer periphery of the rotating gear 785. The rotating gear 785 meshes with the rack 781. As the rotating gear 785 rotates, the rotating gear 785 moves in the longitudinal direction of the rack 781 while meshing with the rack 781.

[0147] Therefore, the speed reduction device 78 is actuated according to the rotation of the drum 713 in the direction of winding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is away from the suspension reference line P. In addition, the speed reduction device 78 is actuated according to the rotation of the drum 713 in the direction of feeding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is close to the suspension reference line P.

[0148] The moving distance of the reel device 71 when the reel 713 rotates is the same as the change in the stacking thickness of the control cable 6 relative to the reel 713 when the reel 713 rotates by adjusting the reduction ratio in the reduction device 78. The reduction ratio in the reduction device 78 is adjusted by adjusting the outer diameters of the first sprocket 782, the second sprocket 783 and the rotating gear 785. The other structures are the same as those in the seventh embodiment.

[0149] Even with such an adjustment mechanism 77 , the rotation of the first sprocket 782 can be transmitted to the second sprocket 783 by the movement of the chain 784 , thereby adjusting the position of the reel device 71 relative to the suspension reference line P according to the rotation of the reel 713 .

[0150] Implementation method 9.

[0151] Fig.13 It is a top view showing the drum device 71 and the adjustment mechanism 77 of the elevator according to the ninth embodiment. Fig.14 It means along Fig.13 71 and the front view of the winding device 71 and the adjustment mechanism 77 when viewed from the arrow C. The adjustment mechanism 77 includes a pair of support rails 771 and a speed reduction device 79. The structure of the pair of support rails 771 is the same as that of the eighth embodiment.

[0152] The reduction gear 79 is provided at a position farther from the reel 713 than the reel support 711 on one side in the axial direction of the reel 713. The reduction gear 79 includes a rack 791, a first pulley 792, a second pulley 793, a belt 794, and a rotating gear 795. The structure of the rack 791 is the same as that of the rack 781 in the eighth embodiment.

[0153] The first pulley 792 is fixed to the drum rotating shaft 712 as a first rotating member. Thus, the first pulley 792 rotates integrally with the drum rotating shaft 712 and the drum 713 around the axis of the drum 713. The first pulley 792 is arranged coaxially with the axis of the drum 713.

[0154] The second pulley 793 is arranged as a second rotating member at a position away from the first pulley 792. In this embodiment, the second pulley 793 is arranged below the first pulley 792. The rotating shaft of the second pulley 793 is attached to one of the reel support platforms 711. The axis of the second pulley 793 is parallel to the axis of the first pulley 792.

[0155] When the reduction gear 79 is viewed from above, the first pulley 792 and the second pulley 793 are respectively arranged at positions deviated from the area of ​​the rack 773. In the present embodiment, when the reduction gear 79 is viewed from above, the first pulley 792 and the second pulley 793 are respectively arranged at positions of the reel support 711 which are farther away from the rack 773. In addition, in the present embodiment, the outer diameter of the second pulley 793 is larger than the outer diameter of the first pulley 792.

[0156] An endless belt 794 is wound as a transmission body between the first pulley 792 and the second pulley 793. The belt 794 moves in accordance with the rotation of the first pulley 792. The second pulley 793 rotates in accordance with the movement of the belt 794.

[0157] The rotating gear 795 is fixed to the rotating shaft of the second pulley 793. Thus, the rotating gear 795 rotates integrally with the second pulley 793 around the axis of the second pulley 793. In the present embodiment, the outer diameter of the rotating gear 795 is smaller than the outer diameter of the second pulley 793.

[0158] The rotating gear 795 is disposed between the second pulley 793 and one of the reel support platforms 711. A plurality of teeth arranged along the circumferential direction of the rotating gear 795 are provided on the outer periphery of the rotating gear 795. The rotating gear 795 meshes with the rack 791. As the rotating gear 795 rotates, the rotating gear 795 moves in the longitudinal direction of the rack 791 while meshing with the rack 791.

[0159] Therefore, the speed reduction device 79 is actuated according to the rotation of the drum 713 in the direction of winding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is away from the suspension reference line P. In addition, the speed reduction device 79 is actuated according to the rotation of the drum 713 in the direction of feeding the control cable 6, thereby the drum device 71 moves in the direction in which the axis of the drum 713 is close to the suspension reference line P.

[0160] The moving distance of the drum device 71 when the drum 713 rotates is the same as the change in the stacking thickness of the control cable 6 relative to the drum 713 when the drum 713 rotates by adjusting the reduction ratio in the reduction device 79. The reduction ratio in the reduction device 79 is adjusted by adjusting the outer diameters of the first pulley 792, the second pulley 793 and the rotating gear 795. The other structures are the same as those in the eighth embodiment.

[0161] Even with such an adjustment mechanism 77 , the rotation of the first pulley 792 can be transmitted to the second pulley 793 by the movement of the belt 794 , thereby adjusting the position of the reel device 71 relative to the suspension reference line P according to the rotation of the reel 713 .

[0162] In Embodiments 7 to 9, a reel device 71 is provided as a support-side device at a position above the respective moving ranges of the car 2 and the counterweight, and a holding device 72 is provided as a car-side device at the upper portion of the car 2. However, the holding device 72 may be provided as a support-side device at a position above the respective moving ranges of the car 2 and the counterweight, and the reel device 71 may be provided as a car-side device at the upper portion of the car 2. Even in this case, the same effect as that of Embodiment 6 can be obtained. In this case, the adjustment mechanism 77 is provided at the upper portion of the car 2 together with the reel device 71.

[0163] In Embodiments 7 to 9, the adjustment mechanism 77 is applied to the control cable support device 7 of Embodiment 6. However, the present invention is not limited thereto, and the adjustment mechanism 77 may be applied to the control cable support device 7 of Embodiments 1 to 5. When the adjustment mechanism 77 is applied to the control cable support device 7 of Embodiments 1, 2, and 5, the adjustment mechanism 77 is provided above the moving range of the car 2 and the counterweight. When the adjustment mechanism 77 is applied to the control cable support device 7 of Embodiments 3 and 4, the adjustment mechanism 77 is provided above the car 2.

[0164] The above-mentioned structure shown in the above-mentioned embodiment is an example of the content of this disclosure. The embodiment can be combined with other well-known technologies. Part of the structure of the embodiment can be omitted or changed within the scope of not departing from the gist of this disclosure.

Claims

1. A control cable support device for an elevator, comprising: A drum device having a drum for winding a control cable connected to the car; a holding device that holds the control cable fed out from the drum; and a rotation force applying unit that rotates the drum in a direction in which the control cable is wound when the car moves upward, One of the drum device and the holding device is used as a car-side device, and the other is used as a support-side device. The car side device is arranged on the upper part of the car, The support-side device is provided at a position above the moving range of the car.

2. The control cable supporting device of an elevator according to claim 1, wherein: The reel device is the support side device, The rotation force applying unit is a linkage mechanism that mechanically links the rotation of the drum with the rotation of a driving sheave of a traction machine that moves the car. The car moves according to the rotation of the driving sheave, The winding drum is linked to the rotation of the driving sheave when the car moves upward through the linkage mechanism, thereby rotating in the direction of winding the control cable. The winding drum is linked to the rotation of the driving sheave when the car moves downward through the linkage mechanism, and rotates in the direction in which the control cable is sent out.

3. The control cable supporting device of an elevator according to claim 1, wherein: The drum device is the car-side device, The rotation force applying unit is a linkage mechanism that mechanically links the rotation of the drum with the rotation of a car suspension pulley provided on the car. The car suspension wheel rotates according to the movement of the car, The winding drum is linked to the rotation of the car suspension wheel when the car moves upward through the linkage mechanism, so as to rotate in the direction of winding the control cable. The drum is linked to the rotation of the car suspending wheel when the car moves downward through the linkage mechanism, thereby rotating in the direction in which the control cable is sent out.

4. The control cable supporting device of an elevator according to claim 1, wherein: The rotation force applying part is an elastic body that applies elastic restoring force to the drum in the direction of winding the control cable. When the car moves upward, the drum rotates in the direction of winding the control cable due to the elastic restoring force of the elastic body. When the car moves downward, the drum overcomes the elastic restoring force of the elastic body and rotates in the direction of sending out the control cable.

5. The control cable supporting device for an elevator according to any one of claims 1 to 4, wherein: The control cable supporting device of the elevator includes an adjustment mechanism for adjusting the position of the winding drum device relative to a suspension reference line preset in a vertical direction according to the rotation of the winding drum. The holding device is arranged on the suspension reference line, The adjustment mechanism moves the drum device in a direction in which the axis of the drum is away from the suspension reference line by rotating the drum in a direction in which the control cable is wound. The adjustment mechanism moves the reel device in a direction in which the axis of the reel approaches the suspension reference line by the reel rotating in a direction in which the control cable is fed out.

Images