JP2019127359A - elevator - Google Patents

Abstract

To provide an elevator capable of suppressing abutting of an opening/closing mechanism of a car door against a beam member.SOLUTION: This elevator is provided with: a car 2 having a car body 20 that has an opening 200, a car door 21 that opens/closes the opening 200, and an opening/closing mechanism 22 which drives the car door 21 to open/close and in which a projected part 220 projects from the car body 20 in the opening/closing direction of the car door 21; a hoistway 3; a counter weight 4; a rope 5 for connecting a car 2 and the counter weight 4; a hoist 6; and a beam member 7 that traverses an upper part 30 of the hoistway 3 so as to intersect the projected part 220 in a perpendicular view, and supports the hoist 6. The beam member 7 includes a first part 71 that includes an intersection part 710 intersecting the projected part 220 in the perpendicular view, and a second part 72 that is adjacent to the first part 71. A lower end 711 of the first part 71 is positioned above a lower end 721 of the second part 72, and positioned not to abut against the projected part 220 when the car 2 is positioned highest.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an elevator in which a hoisting machine is installed at an upper portion in a hoistway.

  The elevator includes, for example, a hoistway in which a car moves up and down, a counter weight moving up and down in the hoistway interlockingly with the car, and a rope connecting the car and the counter weight. The elevator also includes a hoist having a sheave around which the rope is wound and rotating the sheave to raise and lower the car in the hoistway.

  In general, a machine room-less elevator in which a hoisting machine is installed in an upper part in a hoistway and no machine room is provided on the upper side of the hoistway is known (for example, see Patent Document 1). In this elevator, the hoisting machine is installed on, for example, an upper part of a hoistway and attached to a beam member extending in the depth direction of the hoistway. In such an elevator, the car includes a car body having an opening, a car door that opens and closes the opening of the car body, and an opening and closing mechanism that drives the car door to open and close. The car opening and closing mechanism includes, for example, a hanger that suspends a car door, a belt and a rail that guide the movement of the hanger, and the like. Therefore, a part of the opening / closing mechanism of the car may protrude in the opening / closing direction of the car door from the car body.

Japanese Patent Application Publication No. 07-010434

  In the elevator, when the car passes through the landing on the uppermost floor due to some abnormality and is positioned at the uppermost position, 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 and closing mechanism of a car door is prevented from coming into contact with a beam member.

  The elevator according to the present invention includes a car body having an opening, a car door for opening and closing the opening of the car body, and a car door which is opened and closed, and a protruding portion which is a part of the car body is the opening and closing direction of the car door An elevator having an opening / closing mechanism projecting to a shaft, a hoistway in which the car moves up and down, a counter weight for moving up and down in the hoistway interlockingly with the car, and a rope for connecting the car and the counter weight A hoist having a sheave around which the rope is wound and rotating the sheave rotates the car up and down in the hoistway, and an upper portion of the hoistway so as to intersect the projecting portion in a vertical direction view And a beam member for supporting the hoist, the beam member including a first portion including a crossing portion intersecting the protruding portion in a vertical direction, and the first portion A lower part of the first part is located above the lower part of the second part, and does not come into contact with the protruding part when the car is located at the uppermost position. In position.

  According to this configuration, the lower end of the first portion of the beam member does not abut on the projecting portion of the opening / closing mechanism even when the car is positioned at the uppermost position, so the opening / closing mechanism of the car door may abut on the beam member It is suppressed.

  According to the elevator of this invention, the elevator which suppressed that the opening / closing mechanism of the car door contact | abutted to the beam member can be provided.

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 in the II-II line direction of FIG. 1 in the elevator according to the embodiment. FIG. 3 is an enlarged view of the upper portion of the elevator according to the same embodiment. FIG. 4 is an enlarged view of an upper portion of an elevator according to a modification. FIG. 5 is an enlarged view of an upper portion of an elevator according to a modification.

  Hereinafter, an embodiment of an elevator according to the present invention will be described with reference to FIGS. The elevator according to the present invention is a so-called machine roomless elevator having no machine room. The elevator car includes a car body having an opening, a car door for opening and closing the opening, and an opening and closing mechanism for opening and closing the car door. The opening and closing mechanism includes, for example, a hanger that suspends the car door, a belt or a rail that guides the movement of the hanger, and the like. Therefore, a part of the opening / closing mechanism protrudes from the car body in the opening / closing direction of the car door. The elevator comprises a hoist for raising and lowering the car in the hoistway. This hoisting machine is supported at the upper part in the hoistway by a beam member fixed in the hoistway. In addition, FIG. 1 is a schematic diagram, and each structure in the elevator of this embodiment is arrange | positioned as shown in FIG.2 and FIG.3. Further, in FIG. 3, the car body is shown by virtual lines.

  In this elevator, the car may pass through the landing on the top floor due to some abnormality, in which case the car may be in a fixed position (e.g., in the configuration where the raising and lowering of the car is guided by the guide rails, the guide rails Stop at the top position. Thus, even when the car is located at the uppermost position, the lower end of the portion that is a part of the beam member and intersects the protruding portion of the opening / closing mechanism in the vertical direction is in contact with the protruding portion of the opening / closing mechanism. I do not touch.

  For example, the elevator according to the present embodiment is installed in a building having a plurality of levels. As shown in FIG. 1, the elevator 1 includes a car 2, a hoistway 3 in which the car 2 moves up and down, a counterweight 4 that moves up and down in the hoistway 3 in conjunction with the car 2, a car 2 and a counterweight 4 And a rope 5 connecting the two. The elevator 1 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, the counterweight 4 moves up and down the hoistway 3 in conjunction with the car 2. Specifically, the counterweight 4 is lowered when the car 2 is raised, and is raised when the car 2 is lowered. In addition to the above-described sheave 60, the hoist 6 includes a motor (not shown) and an encoder (not shown) capable of detecting the rotational speed and rotational direction of the motor. In addition, the hoisting machine 6 can raise and lower the car 2 and the counterweight 4 by rotating the sheave 60.

  For example, the car 2 is guided by a guide rail extending in the Z-axis direction, moves 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 level. Further, the car 2 has a car body 20 having an opening 200, a car door 21 for opening and closing the opening 200 of the car body 20, and an opening and closing mechanism 22 for opening and closing the car door 21 (see FIG. 1). The car 2 of the present embodiment may move further upward through the landing on the top floor due to some abnormality, and in this case, the highest position (highest position) located above the landing on the top floor For example, stop at the upper end of the guide rail). Thus, when the car 2 is located at the uppermost 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, and a space defined by these in the car 2. The opening 200 is an entrance and exit of the car body 20.

  For example, two car doors 21 exist. The pair of car doors 21 are double doors 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 separate 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 and closing mechanism 22 has a projecting portion 220 which protrudes from the car main 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, endless belt) or rail for guiding the movement of the hanger in the Y-axis direction. Etc. The opening and 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 on the outer side in the Y-axis direction of the belt or a portion located on the outer side in the Y-axis direction of the rail. 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 disposed on the upper portion 30 of the hoistway 3. As shown in FIG. 2, the beam member 7 traverses the upper portion 30 of the hoistway 3 so as to intersect the projecting portion 220 of the opening and closing mechanism 22 in the Z-axis direction. One beam member 7 of the present embodiment is disposed in the upper portion 30 of the hoistway 3 in a state in which the car body 20 is avoided. Further, the beam member 7 of the present embodiment is a bar-like member extending in the depth direction (X-axis direction) of the car main body 20, while being H-shaped steel, I-shaped steel or channel steel in the X-axis direction view. (See FIGS. 2 and 3). The beam member 7 of the present embodiment is disposed outside the car body 20 in the Y-axis direction and extends substantially linearly in the X-axis direction.

  The dimension in the Z-axis direction of the beam member 7 of the present embodiment 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 positioned at substantially the same height in the Z-axis direction at any portion in the X-axis direction or the Y-axis direction.

  Beam member 7 includes a first portion 71 including a crossing portion 710 intersecting with a protruding portion 220 of opening / closing mechanism 22 in the Z-axis direction, and a second portion 72 adjacent to first portion 71. The beam member 7 of the present embodiment includes a first part 71 and a second part 72. Moreover, in the beam member 7 of this embodiment, the 1st site | part 71 is a site | part which spread on both sides in the X-axis direction from the intersection part 710, for example. Furthermore, in the beam member 7 of the present embodiment, one second portion 72 is disposed on each side of the first portion 71 in the X-axis direction. The dimension of the first part 71 in the Z-axis direction is smaller than the dimension of the second part 72 in the Z-axis direction.

  The lower end 711 of the first part 71 is located above the lower end 721 of the second part 72 in the Z-axis direction. In other words, the lower end 721 of the second portion 72 protrudes downward in the Z-axis direction more than the lower end 711 of the first portion 71. Further, the lower end 711 of the first portion 71 is at a position not in contact with the projecting portion 220 when the car 2 is positioned 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 configuration, the beam member 7 of the present embodiment has a long shape such that a part thereof is notched upward in the Z-axis direction when viewed in the Y-axis direction. The 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 abut on the projecting portion 220 of the opening / closing mechanism 22 even when the car 2 is positioned at the uppermost position.

  By the way, when using a beam member having a long shape in which the dimension in the Z-axis direction is substantially the same as the second part 72 of the beam member 7 in any part and no part is missing in the Y-axis direction view, In order to prevent the first portion 71 from coming into contact with the projecting portion 220, the entire beam member has to be disposed at the upper side (high position). On the other hand, in the elevator 1 of the present embodiment, the beam member 7 has a long shape such that a part thereof is missing in the Y-axis direction view. The beam member 7 can be arranged at the lower side (lower position). Thereby, the overhead dimension which is a dimension from the floor of the uppermost floor where the car 2 of the elevator 1 is landed to the top of the hoistway 3 can be reduced.

  In addition, 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 missing 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 size. In this case, the dimension of the beam member in the Z-axis direction decreases, and the cross-sectional area in the X-axis direction and the cross-sectional area in the Y-axis direction decrease. Since the strength of the beam member 7 decreases as the cross-sectional area of the beam member viewed in the X-axis direction and the cross-sectional area viewed in the Y-axis direction, the strength of the beam member decreases. On the other hand, since the beam member 7 of the present embodiment has an elongated shape in which a part is chipped in the Y-axis direction view, even if the position of the lower end 721 of the second portion 72 is low, Since the lower end 711 is positioned above the lower end 721 of the second portion 72, it is possible to prevent the contact of the opening and closing mechanism 22 with the beam member 7, and furthermore, the long portion not lacking any of the above-mentioned portions Compared with the beam member having a shape, by increasing the dimension in the Z-axis direction of the part (second part 72) other than the first part 71 in the beam member 7, the cross-sectional area in the X-axis direction view and the Y-axis direction The cross-sectional area can be increased, and the strength of the beam member 7 can also be increased. Thereby, in the beam member 7 of this embodiment, the winding machine 6 can be stably supported while preventing contact by the opening / closing mechanism 22.

  In addition, the elevator 1 of this invention is not limited to the said embodiment, Of course in the range which does not deviate from the summary of this invention, a various change can be added. For example, the configuration of another embodiment can be added to the configuration of a certain embodiment, and a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment. Furthermore, a part of the configuration of an embodiment can be deleted.

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

  In the beam member 7 of the above embodiment, the first portion 71 includes the crossing portion 710 and is a portion which spreads to both sides from the crossing portion 710 in the X-axis direction, but the first portion 71 is constituted only by the crossing portion 710 May be

  Moreover, although the beam member 7 of the said embodiment was elongate with a part missing, as shown in FIG. 4, it may be elongate without any part missing. In this case, the dimension in the Z-axis direction of the first portion 71 and the dimension in the Z-axis direction of the second portion 72 are substantially the same. Further, at least a part of the upper end 701 of the beam member 7 extends while 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 inclined with respect to the X-axis direction. Similarly, the lower end 711 of the first portion 71 may extend in a state inclined with respect to the X-axis direction.

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

  Although the opening / closing mechanism 22 of the above embodiment is provided at the upper part of the car body 20, it may be provided at the lower part of the car body 20 or may be provided only at the lower part of the car body 20. When the opening / closing mechanism 22 is provided at the lower part of the car body 20, the protruding portion 220 is provided at the lower part of the car body 20, for example. The opening / closing mechanism 22 has a protruding portion 220 protruding from the car body 20 to one side in the Y-axis direction and a protruding portion 220 protruding from the car body 20 to the other side in the Y-axis direction. Among these, it is sufficient to have at least one (of the projecting portions 220 projecting from the car body 20 to one side and the other side in the Y-axis direction).

  The pair of car doors 21 is a double-opening door, but may be a single-opening door. Further, although the car 2 has the two car doors 21, it may have one or a plurality of three or more car doors 21.

  Even with the above configuration, the lower end 711 of the first portion 71 of the beam member 7 does not abut on the projecting portion 220 of the opening / closing mechanism 22 even when the car 2 is positioned uppermost in the elevator 1. The contact between the opening and closing mechanism 22 of the door 21 and the beam member 7 can be suppressed.

DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Car, 20 ... Car body, 200 ... Opening, 21 ... Car door, 22 ... Opening / closing mechanism, 220 ... Protrusion part, 3 ... A hoistway, 30 ... Upper part, 4 ... Counter weight, 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 for opening and closing the opening of the car body, and an opening and closing mechanism for driving the car door to open and close and for projecting a part thereof from the car body to project in the opening and closing direction of the car door; What you have,
A hoistway in which the car ascends and descends;
A counterweight that moves up and down in the hoistway in conjunction with the car;
A rope connecting the cage 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 traversing the upper part of the hoistway so as to intersect the projecting portion in a vertical direction and supporting the hoisting machine;
With
The beam member includes a first portion including a crossing portion intersecting with the protruding portion in a vertical direction view, and a second portion adjacent to the first portion.
An elevator, wherein the lower end of the first portion is located above the lower end of the second portion and is not in contact with the projecting portion when the car is positioned at the uppermost position.

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