JP6726409B2 - elevator - Google Patents

Description

The present invention relates to an elevator having a hoist installed in an upper part of a hoistway.

The elevator includes, for example, a car, a hoistway for raising and lowering the car, a counterweight that moves up and down in the hoistway in conjunction with the car, and a rope that connects the car and the counterweight. Further, the elevator has a sheave around which the rope is wound, and is also provided with a hoisting machine that raises and lowers the car in the hoistway by rotating the sheave.

In general, there is also known a machine roomless elevator in which a hoisting machine is installed in the upper part of the hoistway and which does not have a machine room on the upper side of the hoistway (for example, see Patent Document 1). In this elevator, the hoisting machine is installed, for example, in the upper part of the hoistway and is attached to a beam member extending in the depth direction of the hoistway. In such an elevator, the car has a car body having an opening, a car door that opens and closes the opening of the car body, and an opening/closing mechanism that drives the car door to open and close. The car opening/closing mechanism includes, for example, a hanger for suspending a car door, a belt and a rail for guiding movement of the hanger, and the like. Therefore, a part of the car opening/closing mechanism may project from the car body in the car door opening/closing direction.

JP, 07-010434, A

In the elevator, when the car passes through the landing on the top floor and is located at the highest position due to some abnormality, the protruding portion of the opening/closing mechanism may come into contact with the beam member.

An object of the present invention is to provide an elevator in which the opening/closing mechanism of the car door is prevented from coming into contact with the beam member.

An elevator according to the present invention includes a car body having an opening, a car door that opens and closes an opening of the car body, and a driving part that drives the car door to open and close and a protruding portion that is a part of the car body in the opening and closing direction of the car door. A cage having an opening/closing mechanism projecting to, a hoistway for raising or lowering the car, a counterweight that moves up and down in the hoistway in conjunction with the car, and a rope connecting the car and the counterweight, A hoist having a sheave around which the rope is wound, and a hoist that raises and lowers the car in the hoistway by rotating the sheave, and an upper part of the hoistway so as to intersect the protruding portion when viewed in a vertical direction. And a beam member that supports the hoisting machine, and the beam member is adjacent to the first portion including a crossing portion that intersects the protruding portion in a vertical direction. A second part is included, and the lower end of the first part is located above the lower end of the second part and is not in contact with the protruding part when the car is located at the uppermost position.

According to this structure, even when the car is located at the uppermost position, the lower end of the first portion of the beam member does not contact the protruding portion of the opening/closing mechanism, so that the opening/closing mechanism of the car door may contact the beam member. It can be suppressed.

According to the elevator of the present invention, it is possible to provide an elevator in which the opening/closing mechanism of the car door is prevented from coming into contact with the beam member.

FIG. 1 is a schematic diagram for explaining the configuration of an elevator according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view taken along line II-II of FIG. 1 in the elevator according to the same embodiment. FIG. 3 is an enlarged view of an upper portion of the elevator according to the same embodiment. FIG. 4 is an enlarged view of an upper portion of the elevator according to the modification. FIG. 5 is an enlarged view of an upper portion of the elevator according to the modification.

An embodiment of an elevator according to the present invention will be described below with reference to FIGS. 1 to 3. The elevator according to the present invention is a so-called machine roomless elevator that does not have a machine room. The car of the elevator includes a car body having an opening, a car door that opens and closes the opening, and an opening/closing mechanism that opens and closes the car door. The opening/closing mechanism includes, for example, a hanger for suspending the car door, a belt and a rail for guiding the movement of the hanger, and the like. Therefore, a part of the opening/closing mechanism projects from the car body in the opening/closing direction of the car door. This elevator includes a hoist that raises and lowers a car in a hoistway. The hoisting machine is supported by a beam member fixed in the hoistway at an upper part of the hoistway. It should be noted that FIG. 1 is a schematic diagram, and the components of the elevator according to the present embodiment are arranged as shown in FIGS. 2 and 3. Further, in FIG. 3, the car body is shown by a virtual line.

In this elevator, the car may pass through the landing on the uppermost floor due to some abnormality, and in this case, the car is at a certain position (for example, in the configuration in which the ascent and descent of the car are guided by the guide rail, Stop at the top position). Thus, even when the car is located at the uppermost position, the lower end of the part that is a part of the beam member and that intersects with the projecting part of the opening/closing mechanism in a vertical view is in contact with the projecting part of the opening/closing mechanism. Don't touch

For example, the elevator according to the present embodiment is installed in a building having a plurality of layers. As shown in FIG. 1, the elevator 1 includes a car 2, a hoistway 3 for moving the car 2 up and down, a counterweight 4 that moves up and down in the hoistway 3 in association with the car 2, a car 2, and a counterweight 4. And a rope 5 for connecting. The elevator 1 also includes a hoisting machine 6 having a sheave 60 around which the rope 5 is wound, and a beam member 7 that supports the hoisting machine 6.

The hoistway 3 extends in the Z-axis direction (vertical direction, vertical direction) in the building. The counterweight 4 is a counterweight of the car 2. Further, since the counterweight 4 is connected to the car 2 by the rope 5 as described above, it moves up and down in the hoistway 3 in conjunction with the car 2. Specifically, the counterweight 4 descends when the car 2 is rising, and rises when the car 2 is descending. The hoisting machine 6 has a motor (not shown) and an encoder (not shown) capable of detecting the rotation speed and the rotation direction of the motor, in addition to the sheave 60 described above. In addition, the hoisting machine 6 can raise and lower the car 2 and the counterweight 4 by rotating the sheave 60.

The car 2 is guided by, for example, a guide rail extending in the Z-axis direction to move up and down in the hoistway 3 (moves in the Z-axis direction), and can be stopped at a position facing a landing provided in each floor. The car 2 also includes a car body 20 having an opening 200, a car door 21 that opens and closes the opening 200 of the car body 20, and an opening/closing mechanism 22 that drives the car door 21 to open and close (see FIG. 1 ). The car 2 of the present embodiment may pass through the top floor landing and move further upward due to some abnormality, and in this case, the uppermost position (the highest position, For example, stop at the upper end position of the guide rail). Thus, when the car 2 is located at the highest position, the upper part of the car 2 is located above a part of the lower end of the beam member 7, as shown in FIG.

The car body 20 includes, for example, a ceiling, a wall, a floor in the car 2, and a space defined by these. The opening 200 is a doorway of the car body 20.

For example, there are two car doors 21. The pair of car doors 21 is a double door that can be opened and closed in the Y-axis direction. Specifically, the pair of car doors 21 move outward in the Y-axis direction so as to be separated from each other when the door is opened, and move inward in the Y-axis direction so as to approach each other when the door is closed.

The opening/closing mechanism 22 has a protruding portion 220 that protrudes from the car body 20 in the Y-axis direction. In the car 2 of the present embodiment, the opening/closing mechanism 22 includes a hanger for suspending the car door 21, a drive motor for moving the hanger, and a belt (for example, an endless belt) or a rail for guiding the movement of the hanger in the Y-axis direction. Including etc. The opening/closing mechanism 22 of the present embodiment is provided on the top of the car body 20. Therefore, the protruding portion 220 is provided on the upper portion of the car body 20. Specifically, the protruding portion 220 is configured by a portion located outside the belt in the Y-axis direction and a portion located outside the rail in the Y-axis direction. Therefore, the protruding portion 220 has a portion protruding from the car body 20 to one side in the Y-axis direction and a portion protruding from the car body 20 to the other side in the Y-axis direction.

The beam member 7 is arranged on the upper portion 30 of the hoistway 3. As shown in FIG. 2, the beam member 7 crosses the upper portion 30 of the hoistway 3 so as to intersect with the projecting portion 220 of the opening/closing mechanism 22 when viewed in the Z-axis direction. One of the beam members 7 of the present embodiment is arranged in the upper portion 30 of the hoistway 3 while avoiding the car body 20. The beam member 7 of the present embodiment is a H-shaped steel, an I-shaped steel, or a channel steel when viewed in the X-axis direction, and is a rod-shaped member extending in the depth direction (X-axis direction) of the car body 20. Yes (see FIGS. 2 and 3). The beam member 7 of the present embodiment is arranged outside the car body 20 in the Y-axis direction and extends substantially linearly in the X-axis direction.

The dimension of the beam member 7 of this embodiment in the Z-axis direction is partially different (see FIG. 3 ). Both ends of the beam member 7 in the X-axis direction (both ends in the extending direction of the beam member 7) are fixed to, for example, portions that define the hoistway 3. Further, the upper end 701 of the beam member 7 of the present embodiment extends in the X-axis direction and is located at substantially the same height in the Z-axis direction in any part in the X-axis direction or the Y-axis direction.

The beam member 7 includes a first portion 71 including an intersecting portion 710 that intersects the protruding portion 220 of the opening/closing mechanism 22 when viewed in the Z-axis direction, and a second portion 72 adjacent to the first portion 71. The beam member 7 of the present embodiment includes a first portion 71 and a second portion 72. In addition, in the beam member 7 of the present embodiment, the first portion 71 is, for example, a portion that spreads from the intersection 710 to both sides in the X-axis direction. Furthermore, in the beam member 7 of the present embodiment, one second portion 72 is arranged on each side of the first portion 71 in the X-axis direction. The dimension of the first portion 71 in the Z-axis direction is smaller than the dimension of the second portion 72 in the Z-axis direction.

The lower end 711 of the first portion 71 is located above the lower end 721 of the second portion 72 in the Z-axis direction. In other words, the lower end 721 of the second part 72 projects below the lower end 711 of the first part 71 in the Z-axis direction. Further, the lower end 711 of the first portion 71 is at a position where it does not contact the protruding portion 220 when the car 2 is located at the uppermost position. In the beam member 7 of the present embodiment, the lower end 711 of the first portion 71 and the lower end 721 of the second portion 72 extend, for example, in the X-axis direction (horizontal direction).

With the above-described configuration, the beam member 7 of the present embodiment has a long shape in which a part thereof is cut off in the Z-axis direction when viewed in the Y-axis direction, so that the first portion 71 contacts the protruding portion 220. A structure that does not touch is realized.

Hereinafter, the effect of the elevator 1 will be described.

In the elevator 1, the lower end 711 of the first portion 71 of the beam member 7 does not contact the protruding portion 220 of the opening/closing mechanism 22 even when the car 2 is located at the highest position.

By the way, in the case of using a long beam member whose dimension in the Z-axis direction is substantially the same as that of the second portion 72 of the beam member 7 and which is not chipped in the Y-axis direction, In order to prevent the first portion 71 from coming into contact with the protruding portion 220, the entire beam member must be placed above (higher position). On the other hand, in the elevator 1 of the present embodiment, since the beam member 7 has a long shape in which a part thereof is cut off when viewed in the Y-axis direction, compared with a beam member in which none of the above parts is cut off, The beam member 7 can be arranged below (lower position). As a result, it is possible to reduce the overhead dimension that is the dimension from the floor of the uppermost floor on which the car 2 of the elevator 1 is landed to the top of the hoistway 3.

Further, when using a beam member having a long shape in which the dimension in the Z-axis direction is substantially the same in any part and no part is cut off when viewed in the Y-axis direction, the opening/closing mechanism 22 is applied to the beam member. The position of the lower end of the beam member must be raised to prevent contact, but the position of the upper end of the beam member must be lowered to reduce the overhead dimension. In this case, the dimension of the beam member in the Z-axis direction becomes smaller, and the cross-sectional area in the X-axis direction view and the Y-axis direction view becomes smaller. The smaller the cross-sectional area of the beam member as viewed in the X-axis direction and the smaller the cross-sectional area as viewed in the Y-axis direction, the smaller the strength of the beam member 7, and therefore the strength of the beam member. On the other hand, since the beam member 7 of the present embodiment has an elongated shape in which a part thereof is cut off when viewed in the Y-axis direction, even if the position of the lower end 721 of the second portion 72 is low, Since the lower end 711 is located above the lower end 721 of the second portion 72, it is possible to prevent the opening/closing mechanism 22 from abutting on the beam member 7, and further, it is possible to prevent the opening and closing mechanism 22 from being chipped. By increasing the dimension in the Z-axis direction of the portion (second portion 72) other than the first portion 71 in the beam member 7 in comparison with the beam member having the shape, the cross-sectional area in the X-axis direction and the Y-axis direction. The cross-sectional area can be increased, and the strength of the beam member 7 can also be increased. As a result, the beam member 7 according to the present embodiment can stably support the hoisting machine 6 while preventing contact with the opening/closing mechanism 22.

It should be noted that the elevator 1 of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention. For example, the configuration of another embodiment can be added to the configuration of one embodiment, and a part of the configuration of one embodiment can be replaced with the configuration of another embodiment. In addition, some of the configurations of certain embodiments may be deleted.

For example, although one beam member 7 is arranged in the upper portion 30 of the hoistway 3, a plurality of beam members 7 may be arranged. Further, the beam member 7 extends substantially linearly in the X axis direction, but may extend in the X axis direction in a state of being inclined with respect to the X axis direction, the Y axis direction, and the Z axis direction.

In the beam member 7 of the above-described embodiment, the first portion 71 includes the intersection portion 710 and is a portion that spreads from the intersection portion 710 to both sides in the X-axis direction, but the first portion 71 includes only the intersection portion 710. May be.

Further, the beam member 7 of the above-described embodiment has a long shape in which a part is cut off, but as shown in FIG. 4, it may be a long shape in which no part is cut off. In this case, the dimension of the first portion 71 in the Z-axis direction and the dimension of the second portion 72 in the Z-axis direction are substantially the same. Moreover, at least a part of the upper end 701 of the beam member 7 extends in a state of being inclined with respect to the X-axis direction. At least a part of the lower end 721 of the second portion 72 also extends in a state of being inclined with respect to the X-axis direction. Similarly, the lower end 711 of the first portion 71 may also extend in a state of being inclined with respect to the X-axis direction.

Further, the beam member 7 of the above embodiment is composed of the first portion 71 and the second portion 72, and the second portions 72 are arranged one on each side of the first portion 71 in the X-axis direction. However, as shown in FIG. 5, the second part 72 is arranged on one side of the first part 71 in the X-axis direction, and the third part 73 is arranged on the other side of the second part 72 in the X-axis direction. May be. The third part 73 is, for example, a part adjacent to the second part 72. The lower end 731 of the third part 73 may be located above the lower end 721 of the second part 72 in the Z-axis direction. Further, the lower end 731 of the third portion 73 may be located at substantially the same height as the lower end 711 of the first portion 71 in the Z-axis direction.

The opening/closing mechanism 22 of the above-described embodiment is provided on the upper portion of the car body 20, but may be provided on the lower portion of the car body 20 or may be provided only on the lower portion of the car body 20. When the opening/closing mechanism 22 is provided in the lower portion of the car body 20, the protruding portion 220 is provided in the lower portion of the car body 20, for example. Further, the opening/closing mechanism 22 has the protruding portion 220 protruding from the car body 20 to one side in the Y-axis direction and the protruding portion 220 protruding from the car body 20 to the other side in the Y-axis direction. It suffices to have at least one of these (of the projecting portions 220 that respectively project from the car body 20 to the one side and the other side in the Y-axis direction).

Although the pair of car doors 21 are double-opening doors, they may be single-opening doors. Further, the car 2 has two car doors 21, but may have one car door or a plurality of car doors 21 of three or more.

Even with the above configuration, in the elevator 1, even when the car 2 is located at the uppermost position, the lower end 711 of the first portion 71 of the beam member 7 does not abut the protruding portion 220 of the opening/closing mechanism 22. The opening/closing mechanism 22 of the door 21 can be prevented from coming into contact with the beam member 7.

1... Elevator, 2... Car, 20... Car body, 200... Opening, 21... Car door, 22... Opening/closing mechanism, 220... Projection part, 3... Hoistway, 30... Top, 4... Counterweight, 5... Rope, 6... Hoisting machine, 60... Sheave, 7... Beam member, 71... First part, 72... Second part, 73... Third part, 701... Upper end, 710... Intersection, 711, 721, 731... Lower end

Claims (1)

A car body having an opening, a car door that opens and closes the opening of the car body, and an opening/closing mechanism that drives the car door to open and close and a protruding portion that is a part of the car body projects in the opening and closing direction of the car door. Basket,
A hoistway for the car to go up and down,
A counterweight that moves up and down in the hoistway in conjunction with the basket,
A rope connecting the car and the counterweight,
A hoist having a sheave around which the rope is wound, and rotating the sheave to raise and lower the car in the hoistway;
A beam member that traverses the upper portion of the hoistway so as to intersect with the protruding portion in a vertical direction, and that supports the hoisting machine,
Equipped with
The hoist is arranged below the beam member,
The beam member includes a first portion including an intersecting portion that intersects with the protruding portion in a vertical direction view, and a second portion adjacent to the first portion,
The lower end of the first portion is configured to positioned above the lower end of the second portion, Ri position near without contact with the projecting portion when positioned above said car is the most,
An elevator in which the upper end of the beam member is located at the same height in the vertical direction in both the opening/closing direction of the car door and the depth direction of the car body .

Images