KR100824501B1 - Balance weight-less elevator apparatus - Google Patents

Abstract

Provided is a counterweight weightless elevator apparatus capable of miniaturizing an elevator hoisting path by minimizing the space of the hoistway top and the pit part. To this end, an elevator car for elevating in an elevator hoist, a driving sheave or a returning sheave respectively provided at the top and the pit of the hoistway, and the driving sheave or the lining sheave are wound around one end thereof, From the top of the compartment, the other end is provided with a main rope installed in the car respectively from the bottom of the car, and both ends of the main rope are installed on one side of the car, and one end of the main rope is on one side of the car. It is installed in the lower part from an upper part, or the other end of a main rope is installed in the upper part of one side of a car from a lower part.

Description

Balancing elevator device {BALANCE WEIGHT-LESS ELEVATOR APPARATUS}

The present invention relates to an elevator apparatus (balance weightless elevator apparatus) which is not provided with a balance weight.

In a traction type counterweight elevator device, each end of the main rope is normally connected to an elevator car, and the car of the elevator interlocks with the rotation of the drive sheave on which the main rope is wound. Configured to move up and down. It is a front view of the conventional counterweight elevator apparatus which has such a structure, and shows schematic structure of the elevator apparatus of following patent document 1. As shown in FIG. In FIG. 4, the elevator car 1 which the user of an elevator rides at the time of movement is being fixed to the cage 3 through the buffer material 2, etc. In the cage frame 3, one end of the main rope 6 is placed at the center of the upper frame 3c disposed above the elevator car 1, and the lower frame (below the elevator car 1 is disposed). The other end part of the main rope 6 is elastically provided in the center part of 3a via the rope pulling apparatus 8a or 8b, respectively. The main rope 6, which is connected to the upper and lower portions of the car 5 via the rope pulling devices 8a and 8b, has a lining sheave provided at the top and the pit of the hoistway 7. The tensioning device 14 is wound around the returning sheave 10 and the drive sheave 9a and is provided with a tension device 14 provided in the pit of the hoistway 7. In addition, due to this tension imparted by the tensioning device 14, frictional force necessary for elevating the car 5 is generated between the main rope 6 and the drive sheave 9a.

Patent Document l: Japanese Patent Application Laid-Open No. 2004-67365

In the conventional elevator apparatus without counterweight, including the elevator apparatus described in Patent Literature 1, since the main rope 6 is connected to the upper and lower portions of the elevator vehicle 1, the rope pulling apparatuses 8a and 8b are provided. And devices provided at the top and the pit of the hoistway 7 interfere with each other, and the internal space of the hoistway 7 cannot be effectively utilized, resulting in a problem that the hoistway 7 is enlarged. That is, the top of the hoistway 7 is located at the top of the rope pull device 8a and the hoistway 7 provided above the elevator car 1 when the car 5 reaches the top of the hoistable range. Space for the connection part connecting the main rope 6 to the rope pulling device 8a between the elevator car 1 and the lining sheave 10 so that the installed lining sheave 10 does not interfere (Fig. L1 at 4 and a space (L2 in FIG. 4) for the adjusting part for adjusting the length of the main rope 6 should have been provided. On the other hand, in the pit part of the hoistway 7, the rope pull device 8b provided below the elevator car 1 and the pit part of the hoistway 7 when the cage | basket | car 5 reached | attained the lowest part of the hoistable range. In order to prevent the arranged traction machine 9 from interfering, a space (L4 and L3 in FIG. 4) for the connecting part and the adjusting part was required between the elevator car 1 and the hoisting machine 9.

In addition, when the cage | basket | car 5 is suspended by the some main rope 6, when the cage | basket | car 5 reaches the uppermost range of the elevating range, as shown in FIG. 5, the rope pulling apparatus 8a is carried out. Inclination occurs in. This inclination is the difference between the spacing of the rope grooves of the turning sheave 10 provided at the top of the hoistway 7 and the spacing of the rope pulling device 8a provided above the elevator car 1. In this case, the inclination increases as the distance between the lining sheave 10 and the rope pulling device 8a becomes shorter. For this reason, in order to keep the inclination angle (theta) of the rope pulling apparatus 8a in an allowable range, when the cage | basket | car 5 reaches | attained the uppermost part of the elevable range, the lining sheave 10 and the rope pulling apparatus ( A predetermined distance is necessary between 8a). On the other hand, the above problem may also occur between the hoisting machine 9 provided in the pit of the hoistway 7 and the rope pulling device 8b provided below the elevator car 1, so that the cage 5 can be moved up and down. When reaching the lowest part of, the inclination also occurs in the rope pulling device 8b. For the above reason, the space for maintaining the inclination angle (theta) of the rope pulling apparatus 8a, 8b in the tolerance range was needed in both the top part of the hoistway 7, and the pit part.

This invention is made | formed in order to solve such a problem, The objective is to provide the counterweight-less elevator apparatus which can minimize the elevator hoistway with the space of the top of a hoistway and a pit part to a minimum.

Means for solving the problem

An elevator apparatus without a counterweight according to the present invention is wound around an elevator car for elevating the inside of an elevator hoistway, a drive sheave or a lining sheave provided respectively at the top and the pit of the hoistway, and wound around the drive sheave or the lining sheave. One end has a main rope installed in the car from the top of the car and the other end from the bottom of the car, and both ends of the main rope are provided on one side of the car, and one end of the main rope is provided in the car. It is to be installed from one side lower part of the upper side, or the other end of the main rope is installed from the lower side one side upper part of the car.

Effect of the Invention

The present invention relates to an elevator car for elevating the inside of an elevator hoistway, a drive sheave or a lining sheave respectively provided at the top and the pit of the hoistway, and the driving sheave or the lining sheave, and one end of which is wound above the car. From the bottom of the car, the other end is provided with a main rope installed in the car, respectively, and both ends of the main rope are installed on one side of the car, and one end of the main rope is located above one side of the car. Since the other end of the main rope is installed on the upper side of one side of the car from below, the elevator hoisting path can be miniaturized by minimizing the space of the top and the pit of the hoistway.

FIG. 1: shows the elevator apparatus without a balance weight in Example 1 of this invention, (a) is the side view, (b) is the front view.

FIG. 2: shows the elevator apparatus without a balance weight in Example 2 of this invention, (a) is the side view, (b) is the front view.

Fig. 3 shows an elevator apparatus without a counterweight in Embodiment 3 of the present invention, (a) is a side view thereof, and (b) is a front view thereof.

4 is a front view of a conventional counterweight elevator apparatus.

5 is a detailed view of main parts of a conventional elevator apparatus.

* Explanation of Codes *

1 elevator body 2 cushioning material

3 elevator frame 3a lower frame

3b vertical frame 3c upper frame

4a, 4c lower support 4b, 4d upper support

5 elevator car 6 main rope

7 hoist 8a, 8b rope pull

9 hoist 9a drive sheave

10 liter sheave 11a, 11b rope shackle

12a, 12b spring holder 13a, 13b shackle spring

14 tension device

BRIEF DESCRIPTION OF DRAWINGS To describe the invention in more detail, it is described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same or corresponding part, The duplication description is abbreviate | omitted briefly or abbreviate | omitted suitably.

Example l

FIG. 1: shows the elevator apparatus without a balance weight in Example 1 of this invention, (a) is the side view, (b) is the front view. In FIG. 1, the elevator car 1 which boards when the user of an elevator moves is provided in the cage 3 which shows a substantially square ring shape via the buffer material 2. As shown in FIG. The cage frame 3 is disposed below the elevator body 1, and is placed in the lower frame 3a supporting the elevator body 1, and at both ends of the lower frame 3a, respectively. And a vertical frame 3b disposed on both sides of the elevator vehicle 1, and an upper frame 3c disposed over the upper portion of the vertical frame 3b and disposed above the elevator vehicle 1, It is arrange | positioned so that the upper and lower sides and the both sides of the elevator car 1 may be enclosed. Moreover, in the cage 3, the lower support 4a is provided in the lower side of one side, and the upper support 4b is provided in the upper side of one side, and it protrudes outward from one side of the cage 3; A part of each (hereinafter referred to as "projection") is disposed so as not to interfere with each other on the vertical projection surface.

The cage | basket | car 5 of the elevator which has such a structure is suspended by the some main rope 6, is guided by the guide rail (not shown) installed in the both sides, and elevates the inside of the hoistway 7. As shown in FIG. Each main rope 6 which suspends the cage | basket | car 5 is provided with the rope pulling apparatus 8a in each end, and is resilient from the upper side to the lower support body 4a via this rope pulling apparatus 8a. Is connected. Moreover, each main rope 6 has a driving sheave 9a of the hoisting machine 9 provided at the top of the hoistway 7 and a turning sheave provided at the hoistway 7 pit from the one end side connected to the lower support 4a. It is wound up by (10) sequentially, and the other end is elastically connected to the upper support body 4b from the lower side via the rope pulling apparatus 8b.

Next, the structure and arrangement | positioning of the rope pulling apparatus 8a, 8b provided in the edge part of each main rope 6 are demonstrated.

The rope pulling device 8a provided at one end of each main rope 6 is connected to one end of the main rope 6 above the lower support 4a and is formed through the protrusion of the lower support 4a. Rope Shackle 11a passing loosely through a hole (not shown), Spring holder 12a showing a substantially disk shape provided at the distal end of Rope Shackle 11a below the lower support 4a, and Spring It is installed between the upper surface of the holder 12a and the lower surface of the lower supporter 4a to press the spring holder 12a downwards, and the rope shackle 11a is inserted into the hollow part of the holder 12a. The shackle spring 13a is provided. In addition, the rope pulling device 8a is arranged so that each rope shackle 11a has a predetermined interval, and the lower part of the shackle spring 13a and the spring holder 12a are the lower frame of the cage frame 3. It is arrange | positioned so that it may be located slightly below (3a).

On the other hand, the rope pulling device 8b provided at the other end of each main rope 6 is connected to the other end of the main rope 6 at the bottom of the upper support 4b, and at the same time as the protrusion of the upper support 4b. Rope shackle 11b passing loosely through the formed through hole (not shown), spring holder 12b having an approximate disk shape provided at the distal end of the rope shackle 11b above the upper support 4b, and the upper support ( The shackle spring 13b, which is installed between the upper surface of 4b) and the lower surface of the spring holder 12b, presses the spring holder 12b upwards, and the rope shackle 11b is inserted into the hollow portion thereof. It is provided. In addition, the rope pulling device 8b is arranged so that each rope shackle 11b has a predetermined interval, and the top of the shackle spring 13b and the spring holder 12b are the top of the cage 3. It is arrange | positioned so that it may be located slightly above the frame 3c.

In addition, when an imbalance arises in the length of each main rope 6, by changing the installation position of the spring holder 12a of the rope pulling apparatus 8a and the spring holder 12b of the rope pulling apparatus 8b, It is possible to adjust the length of the main rope 6 individually. For example, when the spring holders 12b and 12b are screwed to the rope shackles 11a and 11b, the length of each main rope 6 is increased by rotating the spring holders 12a and 12b to move them up and down. It can be appropriate. The shackle spring 13a of the rope pulling device 8a and the shackle spring 13b of the rope pulling device 8b are generated during normal operation of the elevator, such as when the car 5 starts and stops. It is provided with the floating function which absorbs the inclination of the rope shackles 11a and 11b which fluctuate by the position of the cage | basket | car 5 at the same time to alleviate an impact.

According to Embodiment 1 of this invention, one end of the main rope 6 which hangs the cage | basket | car 5 of an elevator is connected to the lower support body 4a provided in the lower side of one side of the cage | basket | car 5, and its other end part. Is connected to the upper support body 4b provided on the upper side of one side of the cage | basket | car 5, the rope pulling apparatus 8a, 8b which connects the main rope 6 and the cage | basket | car 5 is a cage | basket | car. It is arrange | positioned at the side of (5). Therefore, the distance between the hoist 9 and the car 5 when the car 5 reaches the top of the liftable range can be minimized, and the elevator 7 can be miniaturized. . In addition, when the lifting | removing range of the cage | basket | car 5 and the cage | basket | car 5 in the cage | path 7 is not changed, it becomes possible to lower the installation position of the hoisting machine 9, and the installability and water retention of the hoisting machine 9 are made. This is improved.

Moreover, since the one end of the main rope 6 is connected to the lower support body 4a of the lower side of one side of the cage | basket | car 5 from upper part, even when the cage | basket | car 5 reaches the uppermost range of the elevable range, The distance by the height of the cage | basket | car 5 is always provided between the drive sheave 9a of the hoisting machine 9 provided in the top part of the hoistway 7, and the rope pulling apparatus 8a. Therefore, as in the related art, the space for maintaining the inclination of the rope pulling device 8a at the top of the hoistway 7 within the allowable range is not necessary, and the space at the top of the hoistway 7 can be reduced. Moreover, even when the cage | basket | car 5 reaches | attains the lowest part of a cage | basket | lifting range, the distance between the lining sheave 10 and the cage | basket | car 5 provided in the pit part of the hoistway 7 for the same reason as the above. At the same time, the space for maintaining the inclination of the rope pulling device 8b within the allowable range in the pit portion of the hoistway 7 is unnecessary.

In addition, the rope pulling device 8a provided at one end of the main rope 6 is disposed so that the spring holder 12a, which is an adjustment portion of the rope pulling device 8a, is located at the lower part of the car 5. When the operator adjusts the length of the main rope 6, the operator can easily operate the spring holder 12a from the lower side of the car 5, and is excellent in workability. The same applies to the rope pulling device 8b provided at the other end of the main rope 6, and the spring holder 12b, which is an adjustment part of the rope pulling device 8b, is disposed to be located above the car 5, As a result, the operator can easily operate the spring holder 12b from the upper side of the car 5 when adjusting the length of the main rope 6.

In addition, in Example 1, although the hoisting machine 9 is arrange | positioned at the top part of the hoistway 7, and the lining sheave 10 is respectively arrange | positioned at the pit part of the hoistway 7, the top part of the hoistway 7 and It is a matter of course that the same effects as those of the first embodiment are provided when turning sheaves which are rotated respectively in the pit portions, for example, have a configuration in which the hoisting machine 9 is provided in the pit portion of the hoistway 7. It does not matter.

Example 2

FIG. 2: shows the elevator apparatus without a balance weight in Example 2 of this invention, (a) is a side view, (b) is a front view. In FIG. 2, the lower support body 4c is provided in the lower part of the side surface of the cage 3 which supports the elevator car 1 so that one part may protrude outward from the one side surface of the cage 3. . Moreover, each main rope 6 which hangs the cage | basket | car 5 is provided with the rope pulling apparatus 8a in each end part, and it is upper side to the lower support body 4c via this rope pulling apparatus 8a. It is elastically connected from. Moreover, each main rope 6 is provided in the drive sheave 9a of the hoisting machine 9 provided in the top part of the hoistway 7, and the pit part of the hoistway 7 from the one end side connected to the lower support body 4c. It is wound up sequentially on the lining sheave 10, and the other end thereof is elastically connected to the lower support body 4c from below via the rope pulling device 8b.

The rope pulling device 8a provided at one end of each main rope 6 is connected to one end of the main rope 6 from above the lower support 4c and is formed through the protrusion of the lower support 4c. Rope Shackle 11a loosely passing through the hole (not shown), Spring holder 12 having a substantially disk shape provided at the distal end of Rope Shackle 11a below the lower support 4c, and Spring Holder 12a. Shackle spring (13a) is provided between the upper surface and the lower surface of the lower support (4c) and press the spring holder 12a downwards, while the rope shackle (11a) is inserted into the hollow portion therethrough have. In addition, the rope pulling device 8a is arranged so that each rope shackle 11a has a predetermined interval, and the lower part of the shackle spring 13a and the spring holder 12a are the lower part of the cage frame 3. It is arrange | positioned so that it may be located slightly below the frame 3a.

On the other hand, the rope pulling device 8b provided at the other end of each main rope 6 is connected to the other end of the main rope 6 from the lower side of the lower support 4c, and at the protrusion of the lower support 4c. Rope shackle 11b passing loosely through the formed through hole, spring holder 12b having an approximate disk shape provided at the distal end of the rope shackle 11b above the lower support 4c, and the upper part of the lower support 4c. The shackle spring 13b is provided between the surface and the lower surface of the spring holder 12b to press the spring holder 12b upwards, and the rope shackle 11b is inserted through the hollow portion thereof.

In addition, others have the same structure as Example 1. FIG.

By having such a structure, the rope pulling apparatuses 8a and 8b are concentrated in the lower part of the cage | basket | car 5, and it becomes possible to simplify structure and reduce component parts. Moreover, since work which connects the main rope 6, length adjustment work, etc. can be performed from the bottom of all the cage | basket | cars 5, it is excellent in workability. Otherwise, the same effects as in Example 1 are obtained. In addition, when sufficient space is not provided between the one side surface of the cage | basket | car 5 and the hoistway wall which opposes this one side, the rope pulling apparatus 8b is operated from the lower side of the cage | basket | car 5, and the main rope ( Although it becomes difficult to adjust the length of 6), since the length of each main rope 6 can be adjusted individually by operating the spring holder 12a of the rope pulling apparatus 8a, there is no problem in particular. In this case, the mechanism of the adjusting part for adjusting the length of the main rope 6 is unnecessary for the rope pulling device 8b, and the structure can be simplified.

Example 3

Fig. 3 shows an elevator apparatus without a counterweight in Embodiment 3 of the present invention, (a) is a side view thereof, and (b) is a front view thereof. In FIG. 3, an upper support 4d is provided on one side upper part of the cage 3 for supporting the elevator car 1 so that a part thereof protrudes outward from one side of the cage 3. have. Moreover, each main rope 6 which hangs the cage | basket | car 5 is provided with the rope pulling apparatus 8a in each end, and it is upwards to the upper support 4d via this rope pulling apparatus 8a. Is elastically connected. Moreover, each main rope 6 is attached to the drive sheave 9a of the hoisting machine 9 provided in the top part of the hoistway 7 from the one end side connected to the upper support body 4d, and the pit part of the hoistway 7. It is wound up sequentially on the turning sheave 10, and the other end thereof is elastically connected to the upper support 4d from below via the rope pulling device 8b.

The rope pulling device 8a provided at one end of each main rope 6 is connected to one end of the main rope 6 from above the upper support 4d, and is formed through the protrusion of the upper support 4d. Rope shackle 11a passing loosely through holes (not shown), spring holder 12a showing an approximate disk shape provided at the distal end of rope shackle 11a at the lower portion of upper support 4d, and spring holder 12a. It is provided between the upper surface of the upper surface and the lower surface of the upper support (4d) to press the spring holder 12a downwards, and at the same time there is provided with a shackle spring (13a) through which the rope shackle (11a) is inserted into the hollow portion have.

On the other hand, the rope pulling device 8b provided at the other end of each main rope 6 is connected to the other end of the main rope 6 at the bottom of the upper support 4d, and at the same time as the protrusion of the upper support 4d. Rope shackle 11b passing loosely through the formed through hole, spring holder 12b having a substantially circular shape provided at the distal end of rope shackle 11b above upper support 4d, and upper part of upper support 4d. The shackle spring 13b is provided between the surface and the lower surface of the spring holder 12b to press the spring holder 12b upwards, and the rope shackle 11b is inserted through the hollow portion thereof. In addition, the rope pulling device 8b is arranged so that each rope shackle 11b has a predetermined interval, and the top of the shackle spring 13b and the spring holder 12b are the top of the cage 3. It is arrange | positioned so that it may be located slightly above the frame 3c.

In addition, others have the same structure as Example 1. FIG.

By having such a structure, the rope pulling apparatuses 8a and 8b are concentrated in the upper part of the cage | basket | car 5, and it becomes possible to simplify a structure and to reduce component parts. Moreover, since the connection work of the main rope 6, the length adjustment work, etc. can all be performed from the upper side of the cage | basket | car 5, it is excellent in workability. In particular, it is also possible to perform the above work on the ceiling of the car 5, and there is no need to prepare a new scaffold or the like at the time of work. Otherwise, the same effects as in Example 1 are obtained. In addition, when sufficient space is not provided between the one side surface of the cage | basket | car 5 and the hoistway wall which opposes this one side, the rope pulling apparatus 8a is operated from the upper side of the cage | basket | car 5, and the main rope 6 Although it becomes difficult to adjust the length of), since the length of each main rope 6 can be adjusted individually by operating the spring holder 12b of the rope pulling apparatus 8b, it does not become a problem in particular. In this case, the rope pulling device 8a does not need a mechanism at the top for adjusting the length of the main rope 6, and the structure can be simplified.

As described above, according to the unbalanced elevator apparatus according to the present invention, both ends of the main rope which hangs the elevator car are connected to one side of the car via a rope pulling device, and the car is at the top of the liftable range. When the parts and the bottom are reached, the equipment and the rope pulling device provided on the top and the pit of the hoistway are not likely to interfere. Therefore, the space required for the top and the pit of the hoistway can be minimized, thus occupying space. It becomes possible to provide this small counterweight free elevator apparatus.

Claims (8)

An elevator car for elevating in an elevator hoist, a driving sheave or a returning sheave provided at the top and a pit of the hoistway, respectively, and one end of the drive sheave or the turning sheave, An unbalanced elevator device having a main rope provided at an upper side of a car from the top of a car, and the other end thereof from a lower side of the car, wherein the main ropes are provided at both sides of one side of the car. At the same time, the one end portion is provided on the lower side of one side of the car from above, or the other end is provided on the one side surface upper portion of the car from below the balance weight elevator device. The method of claim 1, One end of the main rope provided from the upper side to the lower side of the car, or the other end of the main rope provided from the lower side to the upper side of the side of the car, the rope pull provided with an adjusting portion for adjusting the length of the main rope It is provided in the cage via the apparatus, The said adjustment part of the said rope pulling apparatus is arrange | positioned so that adjustment is possible from at least one of the lower side and the upper side of the cage, The counterweight-free elevator apparatus characterized by the above-mentioned. An elevator car for elevating an elevator hoist, a drive sheave or a lining sheave provided at the top and the pit of the hoistway, respectively, and one end of which is wound around the car sheave or the lining sheave; An unbalanced elevator device having a main rope provided at the other end from the lower side of the car, respectively, provided in the car, wherein the main rope is provided at one end of the lower side of the car from above and at the same time. Counterweight elevator device, characterized in that the end is provided from the lower side on the upper side of the side of the car. The method of claim 3, Both ends of the main rope are installed in the car via a rope pulling device having an adjusting part for adjusting the length of the main rope, and the adjusting part of the rope pulling device provided at one end of the main rope is provided in the elevator. And said adjusting portion of said rope pulling device provided at the other end of said main rope so as to be adjustable from a lower side of said compartment and to be adjustable from an upper side of said cage. An elevator car for elevating the inside of the elevator hoistway, a drive sheave or a lining sheave provided at the top and the pit of the hoistway, and the drive sheave or the lining sheave, respectively, one end of which is wound from above the car; The other end is provided with a non-balance weight elevator device having a main rope installed in the car from the lower side of the car, each of which has a lower support provided below one side of the car, wherein the main rope has one end An elevator device without a counterweight, wherein the lower end is provided from the upper side and the other end is provided from the lower side to the lower support. The method of claim 5, One end of the main rope is installed in the car via a rope pulling device provided with an adjusting part for adjusting the length of the main rope, and the adjusting part of the rope pulling device is arranged to be adjustable from the lower side of the car. Elevator device without a counterweight, characterized in that. An elevator car for elevating the inside of the elevator hoistway, a drive sheave or a lining sheave provided at the top and the pit of the hoistway, and the drive sheave or the lining sheave, respectively, one end of which is wound from above the car; Moreover, the other end is provided with the non-weighted elevator apparatus provided with the main rope installed in the said car from the lower side of the said car respectively, Comprising: The upper support body provided in the upper part of one side of the said car, The said main rope has the said one end part A counterweight without an elevator device, characterized in that the upper end is installed from the top, and the other end is provided on the upper support from the bottom. The method of claim 7, wherein The other end of the main rope is installed in the car via a rope pulling device provided with an adjusting part for adjusting the length of the main rope, and the adjusting part of the rope pulling device is adjustable from the upper side of the car. Counterweight elevator device, characterized in that arranged.

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