Elevator rope arrangement

Abstract

The present application provides a kind of elevator rope device.The elevator rope device of the present application has elastomer and rope shackles, the elastomer is arranged in car frame, a plurality of main ropes suspending the car frame are elastically supported in the car frame, the car frame supports the car room being lifted in the elevator shaft, the elastomer is supported in the rope shackles, the rope device connects the main rope with the car frame, the elevator rope device is characterized in that, it is provided with: rotating shaft, it is fixed to car frame;And swing part, it is rotated supported by rotating shaft, can be along the direction of the tension of main rope and be swung like a lever, one side of swing part is connected with the end of main rope, the other side is connected with the rope shackles.

Description

Technical Field

[0001] This invention relates to a rope device for connecting the main rope suspending the car to the car frame of an elevator. Background Technology

[0002] In existing elevators, the rope system installed on the car frame connects the main rope to a rope shackle located on the car compartment side of the car frame via the car frame. The rope shackle connecting the end of the main rope is located between the car frame and the car compartment, protruding from the car frame toward the car compartment side. (See, for example, Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 4-94386

[0006] When the rope shackle is positioned so that it protrudes from the car frame towards the car compartment, sufficient space along the length of the rope shackle must be ensured between the car frame and the car compartment. Therefore, the space between the car frame and the car compartment cannot be reduced to a size less than the length of the rope shackle, thus presenting a challenge in reducing the overall height of the car frame. Furthermore, the difficulty in reducing the overall height of the car frame can sometimes affect the required overhead height (OH) of the hoistway. Summary of the Invention

[0007] The present invention was made to solve the aforementioned problems, and its object is to provide a rope device for an elevator that, when a rope shackle is installed on the upper part of the car frame, is not affected by the length dimension of the rope shackle, and can reduce the total height of the car frame.

[0008] The elevator rope device of the present invention has an elastic body and a rope shackle. The elastic body is disposed on the car frame and elastically supports multiple main ropes suspending the car frame on the car frame. The car frame is supported in the elevator shaft for raising and lowering of the car. The elastic body is supported by the rope shackle. The rope device connects the main ropes to the car frame. The elevator rope device is characterized by having: a rotating shaft fixed to the car frame; and a swinging part rotatably supported by the rotating shaft, which can swing in a lever-like manner along the direction of tension of the main ropes. One side of the swinging part is connected to the end of the main rope, and the other side is connected to the rope shackle.

[0009] Invention Effects

[0010] The present invention enables a rope device for an elevator that, when a rope shackle is installed on the upper part of the car frame, is not affected by the length dimension of the rope shackle, and can reduce the total height of the car frame. Attached Figure Description

[0011] Figure 1 This is a perspective view showing the rope device (integral) of the elevator according to Embodiment 1 of the present invention.

[0012] Figure 2 This illustrates Embodiment 1 of the present invention. Figure 1 A top view of the elevator's rope system.

[0013] Figure 3 This illustrates Embodiment 1 of the present invention. Figure 1 A front view of the main part of the elevator's rope system.

[0014] Figure 4 This illustrates Embodiment 1 of the present invention. Figure 1 A three-dimensional view of the main parts of the elevator's rope system.

[0015] Figure 5 This illustrates Embodiment 1 of the present invention. Figure 1 A perspective view of the main components of the elevator's rope system (without the front surface of the car frame).

[0016] Figure 6 This is a perspective view showing the main parts of the rope device of the elevator according to Embodiment 2 of the present invention.

[0017] Figure 7 This illustrates Embodiment 2 of the present invention. Figure 6 A top view of the elevator's rope system.

[0018] Figure 8 This illustrates Embodiment 2 of the present invention. Figure 6 A front view of the main part of the elevator's rope system.

[0019] Figure 9 This illustrates Embodiment 2 of the present invention. Figure 6 A three-dimensional view of the main parts of the elevator's rope system.

[0020] Label Explanation

[0021] 1: Car; 2: Main rope; 3: Car room; 4: Car frame; 5, 10: Rope device; 6: Rope shackle; 60: Spring; 61: Rope end bar; 7, 71, 72, 11, 111, 112: Swinging part; 70, 110: Rotating shaft; 8: Adjusting bolt; 9, 12: Mounting plate. Detailed Implementation

[0022] Implementation method 1.

[0023] Figure 1 This is a perspective view showing the rope device (integral) of the elevator according to Embodiment 1 of the present invention. Figure 2This illustrates Embodiment 1 of the present invention. Figure 1 A top view of the elevator's rope system. Figure 3 This illustrates Embodiment 1 of the present invention. Figure 1 A front view of the main part of the elevator's rope system. Figure 4 This illustrates Embodiment 1 of the present invention. Figure 1 A three-dimensional view of the main parts of the elevator's rope system. Figure 5 This illustrates Embodiment 1 of the present invention. Figure 1 A perspective view of the main components of the elevator's rope system (without the front surface of the car frame).

[0024] In the diagram, within the hoistway, the car 1 and the counterweight (not shown) are suspended by multiple ropes 2 (six in this example) in a 1:1 rope-winding configuration. The car 1 has a car chamber 3 and a car frame 4, which supports the car chamber 3. The main ropes 2 are wound around the drive sheave (not shown) of the traction machine located at the top of the hoistway. The car 1 and the counterweight are raised and lowered within the hoistway by the rotation of the drive sheave. When the car 1 and the counterweight are raised and lowered within the hoistway, the car 1 is guided by a pair of car guide rails (not shown), and the counterweight is guided by a pair of counterweight guide rails (not shown).

[0025] A rope device 5 is provided on the upper part of the car frame 4, which connects the main rope 2 to the car frame 4. One rope device 5 is connected to one end of one main rope 2; in this example, six rope devices 5 are configured. The rope device 5 has: a rope shackle 6, which elastically supports the main rope 2 to the car frame 4; and a swinging part 7, one end of which is connected to the end of the main rope 2, and the other end of which is connected to the rope shackle 6.

[0026] A rotating shaft 70 is fixed to the upper end of the car frame 4, which provides rotatable support for the swing section 7. A pair of swing sections 71 and 72 are formed in the swing section 7, centered on the rotating shaft 70. The swing sections 71 and 72 are arranged at approximately a 90-degree angle to each other, sandwiching the rotating shaft 70. The length direction of the swing section 71 is horizontal, and the rotating shaft 70 is positioned outside the car frame 4, beyond the end of the swing section 71.

[0027] The rope shackle 6 includes: a spring 60 that elastically supports the main rope 2 to the car frame 4; and a rope end bar 61 that supports the spring 60. Furthermore, the rope shackle 6 is fixed to the upper part of the car frame 4 and positioned outside the car frame 4, relative to the swing part 7, and is configured such that the direction of spring 60 displacement is horizontal.

[0028] An adjusting bolt 8 is provided on the rope end rod 61, which is linked to the rope end rod 61 when it is moved. The adjusting bolt 8 can be fixed at any position on the rope end rod 61 and is configured to abut against the upper end of the spring 60. When the rope end rod 61 is moved, the adjusting bolt 8 is linked and abuts against the upper end of the spring 60 to press the spring 60.

[0029] The swing section 71 is arranged horizontally along its length, and its end is positioned inside the car frame 4, closer to the end of the swing section 72, and at approximately the same height as the rotation axis 70. The end of the swing section 71 is connected to the end of a main rope 2, and it can swing in a lever-like manner along the direction of the tension of the main rope 2.

[0030] The swing section 72 is arranged vertically along its length, and its end is positioned outside the car frame 4 and below the rotating shaft 70, compared to the end of the swing section 71. The end of the swing section 72 is connected to the end of the rope head rod 61. When the swing section 71 swings, the swing section 72 swings in a generally horizontal direction at an angle of approximately 90 degrees relative to the direction of tension of the main rope 2.

[0031] A mounting plate 9 is provided on the upper part of the car frame 4, and the rope shackle 6 is mounted and supported on the side of the mounting plate 9. The rope end rod 61 is arranged horizontally along its length, and the end of the rope end rod 61 opposite to the spring 60 is connected to the swing part 72. When the swing part 72 swings, the rope end rod 61 is pulled out in a generally horizontal direction, and the load of the main rope 2 acts on the spring 60 through the rope end rod 61. Here, when viewed from the horizontal direction, both the swing part 7 and the rope shackle 6 are arranged to overlap with the car frame 4.

[0032] Furthermore, in the prior art, the height of the upper side of the car frame 4 is approximately 200mm to 250mm, and the height of the swing part 7 is within 200mm to 250mm. Additionally, although the total height (length direction) of the spring 60 sometimes varies depending on the weight of the car, its width remains almost constant. Therefore, even when the total height of the spring 60 varies depending on the weight of the car, since the rope shackle 6 is arranged horizontally along its length, it does not affect the vertical dimension of the car frame 4.

[0033] Next, the operation of Embodiment 1, configured as described above, will be explained. When the car 1 is suspended from the main rope 2, the swinging part 71 is pulled upward and swings counterclockwise around the rotation axis 70. As the swinging part 71 swings counterclockwise, the swinging part 72 swings approximately horizontally, pulling the rope end rod 61 toward the center of the car frame 4. When the rope end rod 61 is pulled toward the center of the car frame 4, the spring 60 is compressed by the adjusting bolt 8. As a result, the load from the end of the main rope 2 acts on the rope shackle 6 via the swinging part 7, and the car 1 is elastically supported by the rope shackle 6.

[0034] As described above, according to Embodiment 1, the rope device 5 has a spring 60 and a rope shackle 6. The spring 60 is provided on the car frame 4 and elastically supports multiple main ropes 2 suspending the car frame 4 on the car frame 4. The car frame 4 is supported on the car room 3 that moves up and down in the elevator shaft. The spring 60 is supported on the rope shackle 6. The rope device 5 connects the main ropes 2 to the car frame 4. The rope device 5 includes: a rotating shaft 70, which is fixed to the car frame 4; and a swinging part 7, which is rotatably supported by the rotating shaft 70 and can swing in a lever-like manner along the direction of the tension of the main ropes 2. The swinging part 71 is connected to the end of the main rope 2, and the swinging part 72 is connected to the rope shackle 6. When viewed from the horizontal direction, the length direction of the rope shackle 6 is arranged on the side of the car frame 4. Thus, the elevator rope device 5 can be realized such that when the rope shackle 6 is arranged on the upper part of the car frame 4, it is not affected by the length direction dimension of the rope shackle 6, and the total height of the car frame 4 can be reduced.

[0035] Furthermore, the swing parts 71 and 72 are arranged at approximately 90 degrees to each other with the rotating shaft 70, thereby enabling the length direction of the rope shackle 6 to be arranged horizontally. Therefore, the elevator rope device 5 can be made so that even if the total height of the spring 60 changes according to the weight of the car, it will not be affected by the length direction dimension of the rope shackle 6, and the total height of the car frame 4 can be reduced.

[0036] Furthermore, the rope shackle 6 is configured such that the direction of spring 60 displacement is horizontal, thereby enabling the elevator rope device 5 to achieve the following: even if the total height of spring 60 changes according to the weight of the car, the vertical dimension of the car frame 4 will not be affected because the length direction is arranged in the horizontal direction.

[0037] Implementation method 2.

[0038] Figure 6 This is a perspective view showing the main parts of the rope device of the elevator according to Embodiment 2 of the present invention. Figure 7 This illustrates Embodiment 2 of the present invention. Figure 6 A top view of the elevator's rope system. Figure 8 This illustrates Embodiment 2 of the present invention. Figure 6 A front view of the main part of the elevator's rope system. Figure 9 This illustrates Embodiment 2 of the present invention. Figure 6 A three-dimensional view of the main parts of the elevator's rope system.

[0039] In the figure, the rope device 10 of Embodiment 2 of the present invention is different in that the rope shackle 6 is arranged protruding to the upper side of the car frame 4. Other than this, the same reference numerals are used for the same parts and the description is omitted.

[0040] A rotating shaft 110 is fixed to the upper end of the car frame 4, which provides rotational support for the swing section 11. In the swing section 11, a swing section 111 and a swing section 112 are formed with the rotating shaft 110 as the center. The swing sections 111 and 112 are arranged in a straight line, sandwiching the rotating shaft 110 between them.

[0041] The swing parts 111 and 112 are arranged in a generally horizontal direction along their length, and are capable of swinging in a lever-like manner along the direction of tension of the main rope 2. The swing part 111 is connected to the end of the main rope 2, and the swing part 112 is connected to the end opposite to the spring 60 of the rope shackle 6. Furthermore, the rope shackle 6 is configured such that the direction of spring 60 displacement is vertical. Here, both the end of the main rope 2 and the rope shackle 6 are located on the upper side of the car frame 4.

[0042] The rotating shaft 110 of the swing section 11 is located between the end of the main rope 2 and the rope head rod 61. When the car 1 is suspended by the main rope 2, the load of the entire car 1 acts on the rotating shaft 110, and this load acts on the car frame 4 via the rotating shaft 110. Therefore, the car frame 4, on which the rotating shaft 110 is located, is locally reinforced so that the strength of the car frame 4 can withstand the load when the load of the entire car 1 acts on the car frame 4.

[0043] Here, the load acting on the car frame 4 from the end of the main rope 2 via the swing part 11 varies depending on the position of the rotating shaft 110. For example, if the rotating shaft 110 is positioned away from the main rope 2 and the longitudinal frame of the car frame 4, the car frame 4 needs to be reinforced. Conversely, if the rotating shaft 110 is positioned close to the longitudinal frame of the car frame 4, the reinforcement of the car frame 4 can be reduced.

[0044] For example, if the position of the rotating shaft 110 is too close to the rope head rod 61 side in order to reduce the reinforcement of the car frame 4, the load acting on the rope head rod 61 from the swing part 11 will increase, and the spring 60 will need to be strengthened.

[0045] Therefore, the rotating shaft 110 is positioned at the midpoint between the end of the main rope 2 and the rope head rod 61. As a result, the point of application of the load acting on the car frame 4 via the swing part 11 from the end of the main rope 2 is changed to a position close to the longitudinal frame of the car frame 4, thus avoiding excessive reinforcement of the car frame 4 and minimizing the reinforcement of the spring 60.

[0046] A mounting plate 12 is provided on the upper surface of the car frame 4, and the rope shackle 6 is mounted and supported on the upper surface of the mounting plate 12. The lower end of the rope end bar 61 of the rope shackle 6 is fixed to one end of the swing part 11, and the upper end passes through the car frame 4 and the spring 60 and is arranged to protrude upward from the car frame 4. The rope end bar 61 is configured to move up and down in conjunction with the swing part 11 when it swings.

[0047] Next, the operation of Embodiment 2, configured as described above, will be explained. When the car 1 is suspended from the main rope 2, a load is applied from the main rope 2 to the rope shackle 6 via the swinging part 11. When this load is applied, the swinging part 111 swings upward. When the swinging part 111 swings upward, the swinging part 112 swings downward. When the swinging part 112 swings downward, the rope end rod 61 moves downward in response. When the rope end rod 61 moves downward, the adjusting bolt 8 moves downward in response.

[0048] When the adjusting bolt 8 moves downward, its lower end presses against the upper end of the spring 60, compressing the spring 60. Furthermore, when the car 1 moves up and down while suspended by the main rope 2, the swing part 11 swings like a lever, causing the rope end rod 61 to move up and down in tandem. Here, because the adjusting bolt 8 presses against or moves away from the upper end of the spring 60, the elastic force of the spring 60 is activated. Thus, the car 1 is elastically supported by the main rope 2.

[0049] Furthermore, multiple rope shackles 6 are provided on the upper part of the car frame 4, and the main ropes 2 are also configured for each rope shackle 6, thus there are multiple ropes. When the elevator is in use, the length of the main ropes 2 will change over time, but the degree of change is different for each main rope 2. Therefore, tension adjustment is required for each main rope 2. This tension adjustment is performed by shifting the fixed position of the adjusting bolt 8 of the rope shackle 6 upward or downward.

[0050] In existing rope shackles, tension adjustment is also performed by repositioning the adjusting bolt located on the rope shackle. However, since the rope shackle is located between the car frame 4 and the car compartment 3, it is necessary to reach between the car frame 4 and the car compartment 3. During such adjustment, because it is necessary to reach between the car frame 4 and the car compartment 3, one may sometimes adopt an improper posture and lose balance, making the maintenance work difficult.

[0051] Since the rope shackle 6 of the present invention is arranged to protrude above the car frame 4, when maintenance work is performed on the upper part of the car frame 4, it will not result in an unreasonable posture, and the work can be performed in a relaxed posture.

[0052] As described above, according to embodiment 2, when viewed from the horizontal direction, the rope shackle 6 is arranged protruding towards the upper side of the car frame 4. As a result, the elevator rope device 5 can be made so that maintenance work on the rope shackle 6 can be easily carried out on the car frame 4, and the work can be carried out in a safe posture.

[0053] Furthermore, by making the length from the rotating shaft 110 to the end of the main rope 2 the same as the length from the rotating shaft 110 to the rope shackle 6, it is possible to achieve an elevator rope device 5 that does not excessively increase the reinforcement of the car frame 4 and minimizes the reinforcement of the spring 60.

[0054] Furthermore, in Embodiment 1, the swing portion 71 and the swing portion 72 are arranged at an angle of approximately 90 degrees to each other, sandwiching the rotation axis 70. However, they may not necessarily be arranged at approximately 90 degrees. For example, it is easy to form the angle between the swing portion 71 and the swing portion 72 to an angle other than approximately 90 degrees, corresponding to the direction in which they are arranged along the length of the rope shackle 6, and the same effect will be achieved.

[0055] Furthermore, although the length direction of the rope shackle 6 is arranged in either the horizontal or vertical direction, it is not necessary to set it in either direction. For example, by coordinating with other equipment arranged on the upper part of the car frame, it is easy to arrange it in a direction other than the horizontal or vertical direction, and of course, it will achieve the same effect.

[0056] Furthermore, in Embodiment 2, the length from the rotating shaft 110 to the end of the main rope 2 and the length from the rotating shaft 110 to the rope shackle 6 are the same length, but they do not necessarily need to be the same. For example, it is easy to adjust the ratio of these lengths appropriately according to the weight, strength, number of main ropes 2, etc., and of course, the same effect will be achieved.

[0057] Industrial availability

[0058] This invention relates to a rope device for connecting the main rope suspending the car to the car frame of an elevator.

Claims

1. An elevator rope device comprising an elastic body and a rope shackle, the elastic body being disposed on a car frame, elastically supporting multiple main ropes suspending the car frame on the car frame, the car frame being supported in an elevator shaft for raising and lowering a car, the elastic body being supported by the rope shackle, the elevator rope device connecting the main ropes to the car frame, characterized in that it comprises: A rotating shaft, which is fixed to the car frame; and The swinging part, rotatably supported by the rotating shaft, is capable of swinging in a lever-like manner along the direction of tension of the main rope. One side of the swinging part is connected to the end of the main rope, and the other side is connected to the rope shackle. When viewed from a horizontal direction, the rope shackle is positioned to protrude towards the upper side of the car frame.

2. The elevator rope device according to claim 1, characterized in that, The swinging parts are arranged at a predetermined angle, sandwiching the rotation axis between each other.

3. The elevator rope device according to claim 1, characterized in that, The rope shackle is configured such that the direction of displacement of the elastomer is vertical.

4. The elevator rope device according to claim 2, characterized in that, The rope shackle is configured such that the direction of displacement of the elastomer is vertical.

5. The elevator rope device according to any one of claims 1 to 4, characterized in that, The length from the rotating shaft to the end of the main rope and the length from the rotating shaft to the rope shackle are the same.

Images