JP6477255B2 - Machine room-less elevator - Google Patents

Description

  The present invention relates to a machine room-less elevator, and more particularly to a support structure for a hoisting machine or the like.

  Elevators (machine room-less elevators) that have a hoisting machine installed in the hoistway and abolished the machine room above the hoistway are more flexible in building design than elevators that have a machine room In recent years, it has spread rapidly.

  In the machine room-less elevator, beams (hereinafter referred to as “elevated beams”) are installed on the upper ends of a pair of car guide rails and a pair of counterweight guide rails standing in the hoistway as needed. Both ends (first end and second end) of the main rope are fixed to the elevated beam, and the following return wheel or the like is attached to the elevated beam.

  For example, roping of the main rope having both ends fixed to the elevated beam is performed as follows. That is, the main rope suspended from the first end is wound around a car suspension wheel and folded upward, and the folded main rope is attached to the first return wheel attached to the elevated beam. Wrapped and folded downward. The main rope that is folded downward is wound around the drive sheave of the hoisting machine, folded back upward, and then wound around the second return wheel attached to the elevated beam, and then folded downward again. . The main rope that is folded downward is wound around a suspension wheel of a counterweight and folded upward. And the 2nd end part of the main rope turned up with the suspension vehicle of the counterweight is being fixed to the said overhead beam.

  In the elevator having the above-described configuration, when the drive sheave of the hoisting machine is rotationally driven, the car and the counterweight move up and down in the hoistway in opposite directions.

  Here, when the hoistway is viewed in plan, the hoistway wall facing the left side surface from the outer side of the car to the doorway, out of the three side surfaces of the car excluding one side surface provided with the doorway, The left side wall, the hoistway wall facing the right side surface will be referred to as the “right side wall”, and the hoistway wall facing the side surface (back side) opposite to the entrance / exit will be referred to as the “back wall”. Similarly, when the hoistway is viewed in plan, the space that is occupied by the car for ascending and descending and the space that exists between the left side wall and the space that exists between the left side wall and the right side wall are The space existing between the “right side space” and the back wall is referred to as “back space”.

  In order to suppress the total volume of the left side space, right side space, and rear space as much as possible, in a machine room-less elevator, the hoisting machine and the counterweight are usually the same of the three spaces. It is provided in the space. In this case, the door provided at the doorway is single-opened, and there is a special circumstance in which either the left or right side space is inevitably increased due to the door pocket that houses the door when it is fully open. Generally, the hoist and the counterweight are provided in the back space.

  A machine room-less elevator having a configuration in which both a hoist and a counterweight are provided in a back space is disclosed in FIGS. 4 and 5 of Patent Document 1 and the description part corresponding to these drawings. (Hereafter, this machine room-less elevator is referred to as “conventional elevator”).

  In conventional elevators, one of the pair of car guide rails (first car guide rail) is erected in the left side space, and the other car guide rail (second car guide rail) is the right side. It is erected in the space. Of the pair of counterweight guide rails provided between the counterweights, one (the first counterweight guide rail) is on the left side wall side with respect to the counterweight and the other (second The counterweight guide rails) are erected on the right side wall.

  An elevated beam having an L shape in plan view is formed on the upper end of the first car guide rail, the upper end of the first counterweight guide rail, and the upper end of the second counterweight guide rail. (Hereinafter referred to as “L-shaped elevated beam”). The L-shaped elevated beam is bent at a right angle in the vicinity of the corner formed by the left side wall and the back wall.

  In the L-shaped elevated beam, the first return wheel is attached to a portion parallel to the left side wall (hereinafter referred to as “first elevated beam portion”), and a portion parallel to the rear wall (hereinafter referred to as “ The second return wheel is attached to the “second elevated beam portion”. The first return wheel is attached to substantially the center in the longitudinal direction of the first elevated beam portion, and the second return wheel is attached substantially directly above the upper end of the first counterweight guide rail.

  The hoisting machine has a support beam (hereinafter referred to as “L-shaped”) in a plan view, which is stretched between the first guide rail for the car and the first guide rail for the counterweight in the lower part of the hoistway. "L-shaped support beam"). Like the L-shaped elevated beam, the L-shaped support beam is bent at a right angle in the vicinity of the corner formed by the left side wall and the back wall. In the L-shaped support beam, a portion parallel to the left side wall is referred to as a “first support beam portion”, and a portion parallel to the back wall is referred to as a “second support beam portion”. The hoisting machine is attached to the second support beam part.

International Publication No. 01/42121 Japanese Patent No. 3502270 (Japanese Patent Laid-Open No. 2000-26041) Japanese Patent No. 3438697 (Japanese Patent Laid-Open No. 2000-238976) Japanese Patent No. 3509727 (Japanese Patent Laid-Open No. 2002-87742)

  In the conventional elevator having the above-described configuration, a downward load due to the weight of the car or the like is applied to the first elevated beam portion of the L-shaped elevated beam via the first return wheel that directly suspends the car. It takes. The L-shaped elevated beam is different from a simple straight beam (hereinafter referred to as “straight beam”), and because of its shape (L-shaped), a torsional moment is generated in addition to the bending moment due to the load. To do. The bending moment and the torsional moment are maximized at the joint between the L-shaped elevated beam and the first car guide rail and the joint between the L-shaped elevated beam and the first counterweight guide rail.

  Further, an upward load is applied to the second support beam portion of the L-shaped support beam via a hoisting machine having a drive sheave around which a main rope pulled upward is wound. The L-shaped support beam, like the L-shaped elevated beam, has a shape (L-shape), and thus the upward load generates a torsional moment in addition to the bending moment. The bending moment and the torsional moment are maximized at the joint between the L-shaped support beam and the first car guide rail and the joint between the L-shaped support beam and the first counterweight guide rail.

  In this way, in the conventional elevator, the elevated beam (L-shaped elevated beam) that supports the first return wheel and the support beam (L-shaped support beam) that supports the hoisting machine are L-shaped in plan view. Therefore, only the bending moment is generated in the straight beam, but as described above, the torsional moment is generated in addition to the bending moment. For this reason, in the conventional elevator, it is necessary that the first car rail and the first counterweight rail to which these beams are joined have rigidity capable of withstanding these two kinds of moments.

  By the way, with the recent increase in the scale of commercial facilities, elevators installed in these facilities have increased in capacity. For this reason, in the conventional elevator, the load applied to the L-shaped elevated beam and the L-shaped support beam increases, and the size of the guide rail for the car and the guide rail for the counterweight that supports these beams is increased.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide a machine room-less elevator that can suppress as much as possible the increase in size of a guide rail for a car and a guide rail for a counterweight as compared with the conventional elevator. And

In order to achieve the above object, a machine room-less elevator according to the present invention is provided with an entrance / exit on one side surface, and whether the suspension car is attached or not, the plan view of the car excluding the side surface provided with the entrance / exit. A hoistway having first and second side walls facing each of the side surfaces existing on both sides of the entrance / exit among the three side surfaces, and a back wall facing the side surface opposite to the entrance / exit, and in plan view A first side space that exists between the first side wall and the exclusive space that the car occupies for raising and lowering in the hoistway, and a second that exists between the exclusive space and the second side wall. The first and second car guide rails are vertically provided in the side space, and are provided in the back space existing between the exclusive space and the back wall in plan view. A counterweight with a suspension car , Wherein each between the counterweight and the first side wall and said second side wall, is erected from the floor of the hoistway ceiling near a first guiding the counterweight in a vertical direction And a second counterweight guide rail, and a hoisting machine having a drive sheave provided in the rear space between the first side wall and the first counterweight guide rail. The first return wheel provided at the upper part of the first side space, the second return wheel provided at the upper part of the back space, and between the first end and the second end, The suspension wheel attached to the car, the first return wheel, the drive sheave, the second return wheel, and the suspension of the counterweight are suspended in this order, and the first end and the first The car is suspended between the return wheel of 1 and the second return And has a main rope for suspending said counterweight between the two ends, at the corner of the first side wall and the rear wall, ceiling near the floor of the column said hoistway are erected to the first diverting pulley is stretched between the pillar and the first car guide rail, along with and is supported by the elevated beam was linearly on the take The machine is supported by a linear support beam spanned between the first counterweight guide rail and the support column.

  Further, as the support column, a guide rail having the same configuration as that of the first and second car guide rails and the first and second counterweight guide rails is used. The guide rail is smaller in size than any of the first and second car guide rails and the first and second counterweight guide rails.

  According to the machine room-less elevator having the above-described configuration, the elevated beam is suspended by the main rope between the first return wheel and the first end portion via the first return wheel. Although the downward load due to the weight of the car is applied, the elevated beam has a straight shape, so that a torsional moment that causes a problem with the L-shaped elevated beam in a conventional elevator hardly occurs and is mainly bent. Only moments. Further, the support beam on which the hoisting machine is supported is configured not to be joined to the first car guide rail. As a result, the rigidity required for the first car guide rail on which the elevated beam is stretched can be kept lower than in the prior art. As a result, an increase in the size of the guide rail for the car can be suppressed as much as possible as compared with the conventional elevator.

  In addition, an upward load is applied to the support beam through the hoist having the drive sheave on which the main rope pulled upward is applied to the support beam. However, the support beam is linear. Therefore, the torsional moment which causes a problem in the L-shaped support beam in the conventional elevator hardly occurs, and mainly the bending moment. Thereby, the rigidity required for the first counterweight guide rail on which the support beam is stretched can be suppressed to be lower than that of the conventional art. As a result, an increase in the size of the counterweight guide rail can be suppressed as much as possible as compared with a conventional elevator.

1 is a perspective view showing a schematic configuration of a machine room-less elevator according to an embodiment. It is a top view which shows schematic structure of the said machine room less elevator. It is the figure which expanded a part of FIG.

  Hereinafter, an embodiment of a machine room-less elevator according to the present invention will be described with reference to the drawings. In addition, FIG. 1 represents the state which remove | excluded the ceiling and two wall surfaces among the floor surface, ceiling, and four wall surfaces which comprise the hoistway 20 mentioned later. Moreover, FIG. 2 is a plane expressed in a state excluding the ceiling, and a part of the car 12 described later is cut. In FIG. 2, configurations unnecessary for the description using the drawing are omitted.

  As shown in FIGS. 1 and 2, the machine room-less elevator 10 according to the embodiment includes a car 12 in which an entrance 14 is provided on one side surface. A central double door type car door 16 is provided at the doorway 14. In FIG. 2, what is indicated by reference numeral 18 is a landing door.

  Here, of the three sides of the car 12 excluding one side face where the entrance / exit 14 is provided, from the outside of the car 12 toward the entrance / exit 14, the left side is the left side 12L, the right side is the right side 12R, Let the side surface which exists in the opposite side to the entrance / exit 14 be the back surface 12B.

  When the hoistway 20 is viewed in plan, the hoistway wall facing the left side 12L of the car 12 is the left side wall 20L, the hoistway wall facing the right side 12R is the right side wall 20R, and the hoistway facing the back side 12B. The wall will be referred to as a back wall 20B.

  Similarly, when the hoistway 20 is viewed in plan, the space that the car 12 occupies for raising and lowering (hereinafter referred to as “exclusive space”. The exclusive space is a virtual space having a substantially rectangular parallelepiped shape that is long in the vertical direction. ) And the left side wall 20L are referred to as a left side space LS, a space between the right side wall 20R is referred to as a right side space RS, and a space between the rear side wall is referred to as a back side space BS. To do.

  The car 12 is provided with a suspension wheel 24 including a pair of pulleys 24a and 24b on the outer bottom thereof.

  In the left side space LS and the right side space RS in the hoistway 20, car guide rails 26 and 28 are erected, respectively. Each of the car guide rails 26 and 28 is laid from the floor surface 20F of the hoistway 20 to the vicinity of the ceiling (not shown), and guides the car 12 in the vertical direction.

  A counterweight 30 having a suspension wheel 32 is provided in the back space BS of the hoistway 20.

  Between the counterweight 30, the left side wall 20L, and the right side wall 20R, counterweight guide rails 34 and 36 are erected, respectively. The counterweight guide rail 34 is erected in the middle in the left-right direction of the back space BS in FIG. The counterweight guide rail 36 is erected on the corner between the back wall 20B and the right side wall 20R. The counterweight guide rails 34 and 36, like the car guide rails 26 and 28, are laid from the floor 20F of the hoistway 20 to the vicinity of the ceiling (not shown), and guide the counterweight 30 in the vertical direction. To do.

  Each of the car guide rails 26 and 28 and the counterweight guide rails 34 and 36 are connected to each other by a plurality of structural steel members having a “T” cross section (hereinafter referred to as “guide rail material”). (The state of the connection is not shown).

  A column 38 is erected at the corner between the left side wall 20L and the back wall 20B. The support column 38 has substantially the same length as the car guide rails 26 and 28 and the counterweight guide rails 34 and 36, and is laid from the floor surface 20F of the hoistway 20 to the vicinity of the ceiling (not shown). The struts 38 can have the same configuration as, for example, the car guide rails 26 and 28 and the counterweight guide rails 34 and 36. That is, as the support 38, a guide rail formed by connecting a plurality of steel bars (guide rail materials) having a “T” -shaped cross section can be used. In this case, for the reasons described later, the guide rails constituting the support column 38 can be smaller in size than the car guide rails 26 and 28 and the counterweight guide rails 34 and 36.

  A straight first elevated beam 40 is stretched between the upper end of the car guide rail 26 and the upper end of the column 38. Both ends of the first elevated beam 40 are joined to the car guide rail 26 and the support column 38 by fasteners such as bolts and nuts (not shown). As shown in FIG. 3, one end of a bracket 42 made of an L-shaped angle member is joined to the upper end of the column 38 by bolts and nuts (not shown). In addition, in FIG. 3, the illustration of the 1st return wheel 44 mentioned later is abbreviate | omitted. The end of the first elevated beam 40 on the column 38 side is joined to the column 38 in a state of being placed on the other end of the bracket 42 as shown.

  Returning to FIG. 1, a first return wheel 44 including a pair of pulleys 44 a and 44 b is supported on the first elevated beam 40.

  Between the upper end portion of the support column 38, the upper end portion of the counterweight guide rail 34, and the upper end portion of the counterweight guide rail 36, a second elevated beam 50 that is entirely linear is stretched. Yes.

  As shown in FIG. 3, the second elevated beam 50 includes two elongated plate members 52, 54 facing each other with a gap G therebetween, and rectangular plate members 56, 58 joined to both ends of the plate members 52, 54, respectively. It consists of. The plate members 52 and 54 and the plate members 56 and 58 are joined by fillet welding (a weld bead is not shown), for example.

  The end of the second elevated beam 50 on the counterweight guide rail 36 side is fixed to the upper end of the counterweight guide rail 36 via a bracket (not shown).

  As shown in the drawing, one end of the bracket 60 made of an L-shaped angle member is joined to the center portion in the longitudinal direction of the second elevated beam 50 by fillet welding (the weld bead is not shown). Then, with the tip end of the counterweight guide rail 34 in contact with the one end portion side of the bracket 60, the other end portion side of the bracket 60 is joined to the counterweight guide rail 34 with bolts and nuts (not shown). Has been.

  The column 38 side end of the second elevated beam 50 is merely placed on the bracket 42, and is not joined to the column 38 (bracket 42).

  In the second elevated beam 50 joined to the counterweight guide rail 34 via the bracket 60, the second return wheel 62 made of a single pulley is directly above the end of the counterweight guide rail 34. Is supported. As shown in the figure, a pair of brackets 64 and 66 made of L-shaped angle members are joined to the plate members 52 and 54 constituting the second elevated beam 50. A shaft 68 is fixed to both the brackets 64 and 66, and the second return wheel 62 is rotatably supported by the shaft 68.

  Returning to FIG. 1, a straight third elevated beam 70 is stretched between the upper end of the counterweight guide rail 36 and the upper end of the car guide rail 28. Both ends of the third elevated beam 70 are joined to the counterweight guide rail 36 and the car guide rail 28 by bolts and nuts (not shown).

  In the lower part of the hoistway 20, a linear support beam 72 is suspended between the support column 38 and the counterweight guide rail 34. Both ends of the support beam 72 are joined to the column 38 and the counterweight guide rail 34 by fasteners (not shown) such as bolts and nuts.

  A hoisting machine 74 having a drive sheave 76 is supported by a support beam 72. Thereby, the hoisting machine 74 will be installed in the back space BS when the hoistway 20 is viewed in plan. The installation position of the hoisting machine 74 in the vertical direction of the hoistway 20 is preferably just above the pit PT showing the range with a one-dot chain line, as shown in the example, considering the ease of maintenance of the hoisting machine 74, for example. .

  The machine room-less elevator 10 is hung on the suspension wheel 24 of the car 12, the first return wheel 44, the drive sheave 76 of the hoisting machine 74, the second return wheel 62, and the suspension wheel 32 of the counterweight in this order. Has a passed main rope 78. As shown in FIG. 1, the first end 78 a of the main rope 78 is attached to the third elevated beam 70, and the second end 78 b is attached to the second elevated beam 50. The main rope 78 is composed of a plurality of (in this example, four) wire ropes, but is illustrated with a single line for convenience.

  The main rope 78 suspended from the first end 78a fixed to the third elevated beam 70 is wound around the suspension wheel 24 of the car 12 and folded upward, and the folded main rope 78 is 1 is wound around the first return wheel 44 supported by the elevated beam 40 and folded downward. The main rope 78 folded back downward is wound around the drive sheave 76 of the hoisting machine 74 and folded back upward again, and then wound around the second return wheel 62 supported by the second elevated beam 50. And folded back downward again. The main rope 78 folded downward is wound around the suspension wheel 32 of the counterweight 30 and folded upward. The second end portion 78 b of the main rope 78 that is folded upward by the suspension wheel 32 is fixed to the second elevated beam 50. The main rope 78 passes through the gap G between the plate member 52 and the plate member 54 in the second elevated beam 50 before and after the second return wheel 62 (FIG. 3).

  As is apparent from the above roping, the main rope 78 suspends the car 12 between the first end 78a and the first return wheel 44, and the second return wheel 62 and the second end 78b. The counterweight 30 is suspended between the two.

  An inverter panel 80 for driving the hoisting machine 74 is attached to the rear wall 20B in the vicinity of the hoisting machine 74, and controls opening and closing of the inverter board 80 and the car door 16 to control the machine room-less elevator. A control panel 82 that realizes 10 smooth operations is attached to the left side wall 20L in the vicinity of the pit PT.

  In the machine room-less elevator 10 having the above configuration, when the hoisting machine 74 is driven and the driving sheave 76 is rotated in the direction of arrow A, the main rope extending from the first end 78a to the first return wheel 44. The car 12 is lifted up at 78, and the counterweight 30 is lowered by its own weight and the like. On the contrary, when the drive sheave 76 is rotated in the direction of the arrow B, the counterweight 30 is lifted by the main rope 78 portion extending from the second return wheel 62 to the second end 78b, and the counterweight 30 is raised. The car 12 descends due to its own weight or the like.

  In this case, even when the car 12 is stopped, the downward load due to the weight of the car 12 or the like is applied to the first elevated beam 40 via the first return wheel 44 that directly suspends the car 12. However, since the first elevated beam 40 is a straight beam, the torsional moment that is a problem with the L-shaped elevated beam in the conventional elevator hardly occurs, and mainly the bending moment. . Further, the support beam 72 that supports the hoisting machine 74 is not joined to the car guide rail 26. Thereby, the rigidity required for the guide rail 26 for the car to which the first elevated beam 40 is joined can be suppressed to be lower than the conventional one. As a result, an increase in the size (enlargement) of the guide rail for the car can be suppressed as much as possible as compared with the conventional elevator.

  Further, an upward load is applied to the support beam 72 via a hoisting machine 74 having a drive sheave 76 around which a main rope 78 pulled upward is wound. However, the support beam 72 is a linear beam. For this reason, the torsional moment which has become a problem with the L-shaped support beam in the conventional elevator is hardly generated, but mainly the bending moment. Thereby, the rigidity required for the counterweight guide rail 34 to which the support beam 72 is joined can be suppressed to be lower than the conventional one. As a result, an increase in the size (increase in size) of the counterweight guide rail can be suppressed as much as possible as compared with a conventional elevator.

  When the transport capacity increases in the conventional elevator configuration, the guide rail for the car in which the L-shaped elevated beam and the L-shaped support beam are joined increases in size, and the L-shaped support beam is joined. The guide rails for the counterweight that were used were upsized. In this case, not only the guide rail to which the L-shaped elevated beam and the L-shaped support beam are joined, but also the other guide rail that is paired with the guide rail must be increased in size. That is, in the conventional elevator, all four guide rails are increased in size.

  On the other hand, according to the machine room-less elevator 10 according to the present embodiment, such an increase in size can be suppressed as much as possible. However, in the machine room-less elevator 10, the support 38 is added to the hoistway 20. However, the support 38 is erected at the corner of the back wall 20 </ b> B and the left side wall 20 </ b> L. It does not adversely affect the arrangement of other members and equipment.

  Also, since the column 38 is smaller than the cage guide rails 26 and 28 and the counterweight guide rails 34 and 36, all four guide rails are increased in size even if the column 38 is added. Compared to doing so, there is no major economic problem.

  The reason why the column 38 is smaller in size than the car guide rails 26 and 28 and the counterweight guide rails 34 and 36 is as follows. That is, in the car guide rails 26 and 28 and the counterweight guide rails 34 and 36, for example, when an earthquake or the like occurs and the car 12 or the counterweight 30 rolls, While it is necessary to consider that the load received from the car 12 and the counterweight 30 can be withstood, it is sufficient that the support column 38 has a small size because it is not necessary to consider such a thing.

  As described above, the machine room-less elevator according to the present invention has been described based on the embodiment. However, the present invention is not limited to the above-described form, and for example, the following form may be employed.

  (1) In the above embodiment, the guide rails having the same configuration as the car guide rails 26 and 28 and the counterweight guide rails 34 and 36 are used as the support columns 38. That is, although the support | pillar 38 was comprised with the shape steel material whose cross section was "T" shape, it is not restricted to this, For example, you may use an H-shaped steel material.

  (2) The arrangement of the constituent elements other than the car 12 in the hoistway may be changed symmetrically toward the entrance / exit 14 of the car 12. That is, the main components will be described. The support column is erected at the corner of the back wall 20B and the right side wall 20R. A first elevated beam is spanned between the car guide rail standing on the right side space RS and the support column, and the first return wheel is supported by the first elevated beam. In the rear space BS, the arrangement of the hoisting machine and the counterweight in the left-right direction is exchanged. Along with this, the left guide rail of the pair of car guide rails is erected at the corner of the back wall 20B and the left side wall 20L. A support beam is spanned between the guide rail on the right side of the pair of guide rails and the support column, and the hoisting machine is supported by the support beam.

  (3) In the second elevated beam 50 of the above-described embodiment, the portion on the column 38 side may be omitted from the portion where the bracket 60 is joined (this portion is not included). This is because there is no hindrance in supporting the second end portion 78b of the main rope 78 and the second return wheel 62 even without the portion.

  (4) In the above embodiment, the arrangement position of the hoisting machine 74 in the vertical direction in the hoistway 20 is set in the vicinity of the pit PT, but the present invention is not limited to this, and may be the middle of the hoistway 20. The position may be closer to the ceiling (not shown).

  (5) In the above embodiment, the first return wheel 44 is composed of two pulleys, but it may be composed of one or three or more. Moreover, in the said embodiment, although the 2nd return wheel 62 was comprised by one pulley, you may comprise not only this but 2 or more.

  (6) In the above-described embodiment, the suspension wheel 24 of the car 12 is attached to the outer bottom surface of the car 12, but the present invention is not limited thereto, and may be attached to the upper surface of the car 12. Further, the number of pulleys constituting the suspension wheel 24 is not limited to two, and may be one or three or more.

  (7) In the above embodiment, the suspension wheel 32 of the counterweight 30 is configured by one pulley, but it may be configured by two or more.

  The present invention can be suitably used for, for example, a large-capacity machine room-less elevator.

DESCRIPTION OF SYMBOLS 10 Machine room less elevator 12 Car 12L Left side surface 12R Right side surface 12B Rear side 14 Entrance 20 Lift shaft 20L Left side wall 20R Right side wall 20B Rear side wall 24 Suspension car 26, 28 Car guide rail 30 Counterweight 32 Suspension car 34, 36 Fishing Weight guide rail 38 Post 40 First elevated beam 44 First return wheel 62 Second return wheel 72 Support beam 74 Hoisting machine 76 Drive sheave 78 Main rope 78a First end 78b Second end LS Left side Surface space RS Right side space BS Back space

Claims (2)

Whether an entrance / exit is provided on one side and a suspension car is attached,
The first and second side walls facing each of the side faces existing on both sides of the entrance, and the side face opposite to the entrance, out of the three side faces of the cage except for the side face provided with the entrance, in plan view A hoistway having a back wall facing the
A first side space existing between the first side wall and the exclusive space that the car occupies for raising and lowering in the hoistway in plan view, and the space between the exclusive space and the second side wall. And first and second car guide rails which are respectively installed upright in a second side space existing in the vehicle and guide the car in the vertical direction;
A counterweight having a suspension car provided in a back space existing between the exclusive space and the back wall in plan view;
A first and a first guide that are provided between the counterweight and the first side wall and the second side wall from the floor surface of the hoistway to the vicinity of the ceiling , and guide the counterweight vertically. A second guide rail for counterweight,
In the rear space, a hoisting machine having a drive sheave provided between the first side wall and the first counterweight guide rail;
A first return wheel provided on top of the first side space;
A second return wheel provided at an upper portion of the back space;
Between the first end and the second end, the suspension wheel attached to the car, the first return wheel, the drive sheave, the second return wheel, and the counterweight suspension wheel Hanging in this order, the car is suspended between the first end portion and the first return wheel, and the counterweight is suspended between the second return wheel and the two end portions. A main rope to suspend,
Have
A pillar is erected from the floor surface of the hoistway to the vicinity of the ceiling at the corner of the first side wall and the back wall,
The first return wheel is supported by a linear elevated beam spanned between the first car guide rail and the column,
The machine room-less elevator, wherein the hoisting machine is supported by a linear support beam spanned between the first counterweight guide rail and the column.   The first and second car guide rails and the first and second counterweight guide rails are used as the support pillars, and the guide rails used for the support pillars are used. 2. The machine room-less elevator according to claim 1, wherein the elevator has a size smaller than any of the first and second car guide rails and the first and second counterweight guide rails. .

Images