JP4498759B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus, and more particularly to reduction of overhead dimensions in the vicinity of the upper end portion of a counterweight guide rail.

  As for the layout of a conventional so-called machine room-less elevator, for example, Japanese Patent Application Laid-Open No. 2000-95462 (Patent Document 1) discloses a structure in which the installation space of the elevator is further reduced to increase the use efficiency of the building. In this example, the machine room at the top of the hoistway is omitted, and overhead dimensions (the dimension from the top floor to the hoistway ceiling) and pit dimensions (dimensions from the bottom floor to the hoistway bottom), and the plane of the hoistway It is shown that the frontage and depth dimensions are reduced to save space. Hereinafter, in order to clarify the characterizing portion of the present invention, the conventional apparatus will be described more specifically with reference to FIGS. 16 and 17.

  In the conventional apparatus as described above, as shown in the drawing, the counterweight 4, the weight-side return wheel 7, the car-side return wheel 8, the hoisting machine sheave 10, and the like are arranged on the side surface of the car 1. Since the weight-side return wheel 7 is disposed at the top of the guide rail 5a on the front side of the hoistway 2 (left side in FIG. 16) in the guide rail 5 for the counterweight 4, the guide rail 5a is placed on the weight-side return wheel 7 It must be stopped in front of the weight-turning wheel 7 so as not to hit.

  That is, the hoisting rope 11 wound around the weight suspension vehicle 6 pivotally attached to the counterweight 4 is hung on the weight side return wheel 7 disposed at the top of the hoistway 2. Since the weight side return wheel 7 is disposed on the guide rail 5a, it is necessary to stop the upper end of the guide rail 5a at a length that does not interfere with the weight side return wheel 7. In addition, a guide shoe 41 and a fueling device 42 are attached to the upper part of the counterweight 4, and when the car 1 is pushed down to the pit 13 in an emergency, for example, the counterweight 4 goes too far to the top. In this case, the upper end of the guide rail 5 needs to have such a length that the guide shoe 41 and the oil filler 42 cannot be removed, and a margin dimension indicated by Hm in FIG. 16 is secured in advance as the margin. In addition, 9 is a car suspension wheel pivotally attached to the bottom of the car 1, 12 is a car side rope stop, and Ho is an overhead dimension.

JP 2000-95462 A (page 3, FIG. 1)

  As described above, in the conventional elevator apparatus, the extension line of the guide rail 5a on the near side of the hoistway 2 in the guide rail 5 for the counterweight 4 is in a position where it interferes with the weight-side return wheel 7. In order to make the rail length such that the shoe 41 and the oil filler 42 do not come off, it is necessary to secure a margin dimension indicated by Hm in FIG. 17, and there is a problem that the overhead dimension Ho is increased accordingly.

  The present invention has been made to solve the above-described problems of the conventional device, and is constructed such that the weight-side return wheel at the top of the hoistway and the guide rail for counterweight do not interfere with each other. It is an object of the present invention to provide an elevator apparatus that does not require a short top and can reduce the overhead dimension.

The elevator apparatus according to the present invention includes a counterweight connected to the above car by a hoisting rope that moves up and down the hoistway and lowered or raised according to the up and down of the car, and the counterweight fixed to the hoistway. An elevator apparatus comprising a pair of counterweight guide rails for guiding a weight and a weight-side return wheel provided at an upper part of the hoistway to deflect the direction of the hoisting rope, wherein the counterweight is the car The pair of guide weights for the counterweight are arranged so as to oppose substantially diagonal positions in the horizontal plane direction of the counterweight, and the guide rail for the counterweight and the weight-side return wheel Are arranged in a horizontal direction so as to avoid mutual interference.
Further, the elevator apparatus according to the present invention is fixed to the hoistway and a counterweight which is connected to the car by a hoisting rope and moved up and down the hoistway, and is lowered or raised according to the upper and lower sides of the car. An elevator apparatus comprising a pair of counterweight guide rails for guiding the counterweight and a weight-side return wheel provided at an upper part of the hoistway to deflect the direction of the hoisting rope, for the counterweight The pair of guide rails are arranged eccentrically with each other so as to face the longitudinal surfaces of the counterweight in the horizontal plane direction, and the counterweight guide rail and the weight-side return wheel are horizontally arranged. They are arranged so as to avoid such mutual interference.
Further, the elevator apparatus according to the present invention is fixed to the hoistway and a counterweight which is connected to the car by a hoisting rope and moved up and down the hoistway, and is lowered or raised according to the upper and lower sides of the car. In an elevator apparatus comprising a pair of counterweight guide rails for guiding the counterweight and a weight-side return wheel provided at an upper part of the hoistway to deflect the direction of the hoisting rope, the counterweight is A projection shape in a horizontal plane direction is formed in a substantially L shape, and the counterweight guide rail is disposed substantially diagonally opposite to the counterweight, and the counterweight guide rail and the weight-side return wheel Are arranged in a horizontal direction so as to avoid mutual interference.

  According to this invention, the guide rail top for the counterweight and the weight-side return wheel do not interfere with each other, and the margin when the counterweight is pushed up can be secured at substantially the same position as the weight-side return wheel. Therefore, it is not necessary to provide a margin in the lower part of the weight-side return wheel as in the prior art, and the overhead dimension at the top of the hoistway can be reduced.

Embodiment 1 FIG.
FIGS. 1 to 5 illustrate the main part of an elevator apparatus according to Embodiment 1 for carrying out the present invention. FIG. FIG. 3 is an enlarged perspective view showing a fueling device and a guide shoe portion provided at the upper portion of the counterweight, and FIG. 4 is an arrangement at the upper portion of the hoistway shown in FIG. FIG. 5 is a longitudinal sectional view showing a state in which the car has pushed down into the pit for some reason in FIG. 4 and the counterweight has jumped up (too much pushed up). As shown in the figure, the car 1 moves up and down the hoistway 2 while being guided by the car guide rail 3. The counterweight 4 for balancing with the car 1 is guided by a pair of guide rails 5 including a guide rail 5 a on the near side in the depth direction of the hoistway 2 and a guide rail 5 b on the far side of the hoistway 2. In the first embodiment, the guide rail 5a and the guide rail 5b are arranged to face each other with a gap G shown in FIG. 2 shifted in phase in the horizontal plane. The guide rail 5a is disposed on the side wall 2b, and the guide rail 5b is disposed on the side. Each is fixed to the back wall 2a.

  That is, as shown in FIG. 2, one guide rail 5a is closer to the side wall 2b of the hoistway 2 than the position of the center line C of the counterweight 4, and the other guide rail 5b is more than the hoistway 2 from the center line C. The weight-side return wheel 7 and the guide rail 5a are arranged so as not to interfere with each other by tilting the rotational axis θ of the weight-side return wheel 7 toward the back wall 2a of the hoistway 2. As shown in FIG. 4, the upper end portion of the guide rail 5 a is provided so as to extend upward from the weight side return wheel 7, and a margin dimension when pushing up is secured in the vicinity of the weight side return wheel 7.

  41 is a guide shoe fixed on both sides of the upper portion of the counterweight 4, 42 is an oiler fixed above the guide shoe 42, 43 is an oil penetration mop, and 6 is pivotally attached to the upper portion of the counterweight 4. A weight suspension wheel, 7a is a mounting metal for supporting the weight side return wheel 7, 8 is a car side rotation wheel, 8a is a mounting metal for supporting this car side rotation wheel 8, 9 is a car suspension wheel, and 10 is a hoisting machine. A car, 11 is a hoisting rope, 11a is a weight side rope clamp, and 11b is a rope shackle. Note that the same reference numerals denote the same or corresponding parts throughout the drawings.

  Next, the operation of the first embodiment configured as described above will be described. In the first embodiment, the position of the guide rails 5a and 5b for the counterweight 4 is symmetrically shifted from the center line C of the counterweight 4, so that the direction of the rotation axis θ of the weight-side return wheel 7 is changed. It is possible to avoid the upper end portion of the guide rail 5a from interfering with the weight-side return wheel 7 only by being slightly inclined. Therefore, the guide rail 5a can be extended to the full top of the hoistway 2, and as shown in FIG. 5, even when the counterweight 4 is pushed upward from the normal state for some reason, the guide shoe 41, the oil supply There is no possibility that the container 42 or the like collides with the weight-side return wheel 7. Since other operations as the elevator apparatus are the same as those of the conventional apparatus, description thereof is omitted.

  As described above, according to the first embodiment, in the conventional apparatus, the margin dimension Hm that has to be provided in the lower portion of the weight-side return wheel 7 can be configured in the portion of the weight-side return wheel 7, and the overhead is increased. The effect that the dimension Ho can be kept small is acquired.

Embodiment 2. FIG.
6 and 7 show the main part of an elevator apparatus according to Embodiment 2 of the present invention. FIG. 6 is a plan view showing the main part structure of the upper part of the hoistway, and FIG. 7 shows the details of the counterweight part of FIG. FIG. In the second embodiment, as shown in the figure, a pair of guide rails 5a and 5b for the counterweight 4 are disposed diagonally opposite diagonal positions as viewed from above the counterweight 4. The weight-side return wheel 7 is disposed substantially in line with the weight suspension wheel 6 and is completely separated from the guide rail 5a. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  According to the second embodiment configured as described above, the guide rail 5a on the near side of the hoistway 2 is arranged at the corner portion of the counterweight 4, so that it is substantially on the center line C of the counterweight 4. The interference with the weight-side return wheel 7 can be avoided, the same effect as the first embodiment can be obtained, and it is not necessary to incline the direction of the rotation axis of the weight-side return wheel 7. Has the advantage of being easy.

Embodiment 3 FIG.
8 and 9 show the main part of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 8 is a plan view showing the main part structure of the upper part of the hoistway, and FIG. 9 shows the details of the counterweight part of FIG. FIG. As shown in the figure, in the third embodiment, the counterweight 4 itself is disposed obliquely on the plane with respect to the car 1, and the pair of guide rails 5a and 5b for guiding the counterweight 4 are substantially parallel to the side wall 2b. And is arranged so as to guide the diagonal portion of the counterweight 4 on the plane, and the rotation axis θ of the weight-side return wheel 7 is inclined in the direction of the landing side of the hoistway 2 (left side in the figure). Thus, the weight-side return wheel 7 and the guide rail 5a are configured not to interfere with each other. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  According to the third embodiment configured as described above, the rope position of the weight suspension vehicle 6 is shifted from the extension line of the guide rail 5a. The interference between the side turning wheel 7 and the guide rail 5a can be released, and at the same time, the relationship between the weight hanging wheel 6 and the rope hanging (fleet angle) of the weight side turning wheel 7 can be improved, and the same effect as in the first embodiment is achieved. Is obtained.

Embodiment 4 FIG.
10 and 11 show the main part of an elevator apparatus according to Embodiment 4 of the present invention. FIG. 10 is a plan view showing the main part structure of the upper part of the hoistway, and FIG. 11 shows the details of the counterweight part of FIG. FIG. As shown in the figure, in the fourth embodiment, a pair of guide rails 5a and 5b for the counterweight 4 are disposed opposite to each other on both side surfaces 4a and 4b in the longitudinal direction of the counterweight 4 in the horizontal plane direction. The guide rail 5a is fixed to the side wall 2b, and the guide rail 5b is fixed to the back wall 2a. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  According to the fourth embodiment configured as described above, the weight-side return wheel 7 and the guide rail 5a completely escape so that they do not interfere with each other, and at the same time the rope suspension of the weight-side return wheel 6 and the weight-side return wheel 7 Relationships can be arranged honestly. Therefore, this embodiment can obtain the same effects as those of the first embodiment, and the rail mounting method can be greatly changed, so that a possibility of forming a new layout can be expected.

Embodiment 5 FIG.
12 and 13 show the main part of an elevator apparatus according to Embodiment 5 of the present invention. FIG. 12 is a plan view showing the main part configuration of the upper part of the hoistway, and FIG. 13 shows the details of the counterweight part of FIG. FIG. In the fifth embodiment, as shown in the drawing, the guide shoe 41 is attached to the attachment portion 44 protruding from the side surface portion 4a facing the side wall portion 2b in the longitudinal direction of the counterweight 4 in the horizontal direction, and a pair of guide rails 5a and 5b are arranged on the side surface portion 4a side of the counterweight 4 with a phase shifted in parallel to the center line C of the counterweight 4. Reference numerals 51a and 51b denote brackets for fixing the guide rails 5a and 5b to the side wall 2b. Since other configurations are the same as those of the fourth embodiment, description thereof is omitted.

  According to the fifth embodiment having the above configuration, the weight-side return wheel 7 and the guide rail 5a completely escape, so that the same effect as in the first embodiment can be obtained, and the guide rail 5a is connected to the side surface portion of the counterweight 4. Therefore, it is possible to reduce the distance between the rails in the depth direction of the hoistway 2, and the depth direction dimensions in the horizontal direction in the drawing including the guide rails 5a and 5b and the brackets 51a and 51b for mounting the guide rails 5a and 51b are as follows. The depth of the counterweight 4 can be accommodated smaller, and the effect that the space in the depth direction of the hoistway 2 can be further reduced can be obtained.

Embodiment 6 FIG.
14 and 15 show the main part of an elevator apparatus according to Embodiment 6 of the present invention. FIG. 14 is a plan view showing the main part structure of the upper part of the hoistway, and FIG. 15 shows the details of the counterweight part of FIG. FIG. As shown in the figure, in the sixth embodiment, the counterweight 4 is formed in a substantially L shape and arranged on the outer corners of the hoistway 2 so that the two outer sides that are substantially perpendicular to each other are arranged along the rear corner of the hoistway 2. 5b is arranged on a substantially diagonal line connecting the L-shaped ends of the counterweight 4. Since other configurations are the same as those of the fourth embodiment, description thereof is omitted.

  In the fifth embodiment configured as described above, there is no interference between the weight-side return wheel 7 and the guide rail 5a, and the same effect as in the first embodiment can be obtained. By arranging the L-shaped counterweight 4 in the space, an effect that the hoistway space can be effectively used is also obtained.

  In addition, the elevator apparatus demonstrated in the said Embodiment 1-6 is only an example of what prevented the guide rail 5 for counterweights, and the weight side return wheel 7 from mutually interfering, These are not necessarily what was illustrated. It is needless to say that the same effect can be expected even if the arrangement, shape, and the like thereof are appropriately changed.

The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 1. FIG. The principal part top view which shows the detail of the counterweight part of FIG. The perspective view which expands and shows the oil feeder and guide shoe part which were provided in the counterweight upper part of FIG. The longitudinal cross-sectional view which shows the arrangement | positioning in the hoistway upper part shown in FIG. FIG. 5 is a longitudinal sectional view showing a state where a car is pushed down into a pit in FIG. 4 and a counterweight jumps up. The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 2. FIG. The top view which shows the detail of the counterweight part of FIG. The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 3. FIG. The top view which shows the detail of the counterweight part of FIG. The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 4. FIG. The top view which shows the detail of the counterweight part of FIG. The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 5. FIG. The top view which shows the detail of the counterweight part of FIG. The top view which shows the principal part structure of the hoistway upper part of the elevator apparatus by Embodiment 6. FIG. The top view which shows the detail of the counterweight part of FIG. The top view which shows roughly the apparatus arrangement | positioning in the hoistway in the conventional elevator apparatus. The longitudinal cross-sectional view which shows the equipment arrangement | positioning of the top vicinity and bottom vicinity of the hoistway shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Car, 2 hoistway, 2a back wall part, 2b side wall part, 3 car guide rail, 4 counterweight, 4a, 4b side part, 5 (for counterweight) guide rail, 5a (front side of hoistway) Rails, 5b guide rails (at the back of the hoistway), 6 weight suspension vehicles, 7 weight side return vehicles, 7a attachments, 8 cage side return vehicles, 8a attachments, 9 cage suspension vehicles, 10 hoisting sheaves, 11 hoisting rope, 11a weight side rope stopper, 11b rope shackle, 12 cage side rope anchor, 13 pit, 41 guide shoe, 42 oil feeder, 43 oil penetration mop, Hm margin dimension, Ho overhead dimension, θ rotation axis.

Claims (3)

Whether to go up and down the hoistway,
A counterweight connected to the above car by a hoisting rope and lowered or raised according to the top and bottom of the car;
A pair of counterweights for the counterweight that is fixed relative to the hoistway and guides the counterweight;
In an elevator apparatus provided with a weight-side return wheel provided at the upper part of the hoistway and deflecting the direction of the hoisting rope,
The counterweight is arranged obliquely with respect to the car,
The pair of guide weights for the counterweight are arranged to face substantially diagonal positions in the horizontal plane direction of the counterweight,
An elevator apparatus characterized in that the counterweight guide rail and the weight-side return wheel are horizontally shifted so as to avoid mutual interference. Whether to go up and down the hoistway,
A counterweight connected to the above car by a hoisting rope and lowered or raised according to the top and bottom of the car;
A pair of counterweights for the counterweight that is fixed relative to the hoistway and guides the counterweight;
In an elevator apparatus provided with a weight-side return wheel provided at the upper part of the hoistway and deflecting the direction of the hoisting rope,
The pair of guide weights for the counterweight are arranged so as to be eccentric from each other so as to face the longitudinal surfaces of the counterweight in the horizontal plane direction, respectively .
The balance a guide rail and the counterweight-side return pulley of the sinker is shifted horizontally disposed, features and to Rue elevators apparatus to become avoiding interference of each other. Whether to go up and down the hoistway,
A counterweight connected to the above car by a hoisting rope and lowered or raised according to the top and bottom of the car;
A pair of counterweights for the counterweight that is fixed relative to the hoistway and guides the counterweight;
In an elevator apparatus provided with a weight-side return wheel provided at the upper part of the hoistway and deflecting the direction of the hoisting rope,
The counterweight is formed in a substantially L-shaped projection in the horizontal plane direction, and the guide rail for the counterweight is disposed substantially opposite to the counterweight on the counterweight ,
The balance a guide rail and the counterweight-side return pulley of the sinker is shifted horizontally disposed, features and to Rue elevators apparatus to become avoiding interference of each other.

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