Elevator device

Abstract

To provide an elevator device which is hardly affected by a shape (including a dimension) of shape steel, even if the shape steel is used.SOLUTION: An elevator device includes: a hoisting machine 102 having a sheave 102b; a main rope 107 which is wound around the sheave 102b and is driven by the hoisting machine 102; and a hoisting machine support part 120 for supporting the hoisting machine 102 in a hoistway. The hoisting machine support part 120 is divided into a first support member 121 and a second support member 122 in a rotary shaft direction 102bx of the sheave.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to an elevator device. [Background technology]

[0002] Patent Document 1 describes an elevator equipped with a fixing part that fixes the position of a hoist having a sheave around which a rope is wound (see paragraphs 0013 and 0017). The fixing part extends along a horizontal plane and has lower fixing members that are directly connected to one counterweight rail and the other counterweight rail, respectively (see paragraph 0018). The lower fixing members are made of channel steel (see paragraph 0018 and Figure 4). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-137511 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a machine-room-less elevator in which the control panel and the hoist are arranged in the hoistway, if the hoistway support is made of, for example, dimensional steel (section steel), the size of the hoistway support is determined by the shape (including dimensions) of the section steel. For this reason, the hoistway dimensions are easily affected by the shape of the section steel.

[0005] An object of the present invention is to provide an elevator device that is not easily affected by the shape (including dimensions) of shaped steel even when shaped steel is used. [Means for solving the problem]

[0006] In order to solve the above problems, the elevator device of the present invention comprises: An elevator system including a hoist having a sheave, a main rope wound around the sheave and driven by the hoist, a car and a counterweight that ascend and descend in a hoistway as the main rope is driven, a guide rail that guides the ascending and descending of the car and the counterweight, and a hoist support that supports the hoist in the hoistway, The hoist support portion is divided into a first support member and a second support member in the direction of the rotation axis of the sheave. Effect of the Invention

[0007] According to the present invention, it is possible to provide an elevator device that is not easily affected by the shape (including dimensions) of shaped steel even when shaped steel is used.

[0008] Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0009] [Figure 1] 1 is a cross-sectional view parallel to the vertical direction showing the configuration of an elevator device 100 according to an embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view parallel to the horizontal direction showing a configuration of an elevator device 100 according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a plan view showing the configuration and arrangement within the hoistway HW of a hoisting machine support section 120 according to one embodiment of the present invention. [Figure 4] 4 is a projection view of the hoisting machine support part 120 shown in FIG. 3 in the direction of arrow IV. [Diagram 5] 4 is a cross-sectional view of the hoisting machine support part 120 shown in FIG. 3 in the arrow VV direction. [Figure 6] 5 is a cross-sectional view similar to the cross-section taken along the arrow VV in FIG. 3, showing a modified example of the hoist support part 120 according to one embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0011] The configuration of the elevator device 100 will be described with reference to Figs. Fig. 1 is a vertical cross-sectional view showing the configuration of an elevator system 100 according to an embodiment of the present invention. In Fig. 1, the size of the hoistway HW and the position and orientation of each device arranged in the hoistway HW are depicted in a form different from the actual one in order to explain the configuration of the elevator system 100. Fig. 1 also shows a state in which the car 104 is stopped at a landing 112 on the top floor.

[0012] The x-axis, y-axis, and z-axis directions are defined as shown in Fig. 1. The x-axis direction is horizontal and coincides with the width direction of the car 104. The y-axis direction is horizontal and coincides with the depth direction of the car 104. The z-axis direction is vertical (up and down) and coincides with the direction in which the car 104 rises and falls.

[0013] The elevator device 100 comprises a car 104 and a counterweight 105 that rise and fall within a hoistway HW, a hoist 102 around which a main rope 107 connected to the car 104 and the counterweight 105 is wound, a guide rail 109 that is erected in the hoistway HW and guides the rise and fall of the car 104 and the counterweight 105, a control panel (control device) 101 that controls the elevator device 100, and a governor 111 (see Figure 2) for detecting the rising and falling speed of the car 104.

[0014] The car 104 and the counterweight 105 are provided inside a hoistway HW provided in a building, and are suspended in a bucket-like manner by a main rope 107. One rope end 107b of the main rope 107 is supported near the ceiling of the hoistway HW, hung on a pulley 104b provided on the underside of the car 104, and wound around a sheave 102b of the hoisting machine 102. The other rope end 107a of the main rope 107 wound around the sheave 102b of the hoisting machine 102 is supported by a hoisting machine support part 120 via a pulley 105a of the counterweight 105.

[0015] The car 104 is electrically connected to the control panel 101 by a tail cord (not shown), receives power via the tail cord, and exchanges control signals and various other signals with the control panel 101. A buffer 106 is disposed on the bottom of the elevator shaft HW below the car 104 and the counterweight 105. In Fig. 1, the buffer 106 for the counterweight 105 is illustrated, but the buffer for the car 104 is not illustrated.

[0016] The hoisting machine 102 is supported by a hoisting machine support part 120 and is disposed at the top of the hoistway HW. The control panel 101 is disposed at the top of the hoistway HW and is disposed near the hoisting machine 102. The elevator system 100 of this embodiment is a machine room-less elevator system in which devices such as the control panel 101 and the hoisting machine 102 are disposed in the hoistway HW. The support part 120 is depicted in a simplified manner in FIG. 1, and the configuration of the hoisting machine support part 120 will be specifically described later.

[0017] The car 104 and the counterweight 105 are guided in the vertical direction (ascending and descending direction) by a guide rail 109 erected in the vertical direction (height direction) along the inner wall (side wall) HW1 of the hoistway. The guide rail 109 is supported by a support base (guide rail support base) 103 and fixed to the inner wall HW1 of the hoistway HW by a rail bracket (not shown).

[0018] That is, in the elevator device 100 of this embodiment, an elevator body consisting of the car 104 and counterweight 105 connected to the main ropes 107 is guided by the guide rails 109 and moves up and down the hoistway HW. Here, "connected" does not mean that the main ropes 107 are fixed to the car 104 and counterweight 105, but includes being hung on pulleys as described below.

[0019] The governor 111 is a device that detects the ascending and descending speed of the car 104, and has a main body (governor sheave) 111a, an upper diverting pulley 111b arranged above the main body 111a, a lower diverting pulley 111c arranged below the main body 111a, and a governor rope 111e wound around the main body 111a, the upper diverting pulley 111b, and the lower diverting pulley 111c.

[0020] Fig. 2 is a cross-sectional view parallel to the horizontal direction showing the configuration of an elevator system 100 according to an embodiment of the present invention. Note that Fig. 2 illustrates the state of the elevator shaft HW as seen from above the car 104, and depicts the car top 104c of the car 104.

[0021] A car door 104a is provided on the side of the car 104 facing the elevator hall 112. An entrance door 112a is provided on the elevator hall 112 side at a position opposite the car door 104a. A space is provided between the hoistway wall HW1 and the other sides of the car 104 except for the side on which the car door 104a is provided, in which equipment (hoistway interior equipment) such as the hoistway machine 102, the governor 111, and the control panel 101 are disposed.

[0022] To enable such an arrangement, the hoist 102 is configured as a thin hoist in which the dimension in the direction of the rotation axis (x-axis) of the sheave 102b is smaller than the dimension in the horizontal direction and in the direction perpendicular to the rotation axis (y-axis). In this embodiment, the hoist 102 and the governor 111 are arranged in the space on the left side of the car 104 when viewed from the elevator hall 112 side. The hoist 102 is fixed to the hoistway wall HW1 by the hoistway support part 120 (see FIG. 1). The hoistway support part 120 is fixed to the car guide rail 109A and the counterweight guide rail 109B, and the hoist 102 is fixed to the hoistway wall HW1 via the guide rail 109.

[0023] The control panel 101 is disposed in a space formed on the right side of the car 104 when viewed from the elevator hall 112 side. The control panel 101 is fixed to the hoistway wall HW1 by a control panel bracket (not shown). In this case, the control panel bracket is fixed to the car guide rail 109A, and the control panel 101 is fixed to the hoistway wall HW1 via the car guide rail 109A.

[0024] The elevator device 100 of this embodiment is of a traction type, in which the hoist 102 frictionally drives the main rope 107 to raise and lower the car 104 up and down along the car guide rails 109A, and raise and lower the counterweight 105 up and down along the counterweight guide rails 109B. That is, the guide rails 109 described in FIG. 1 include a pair of car guide rails 109A that guide the car 104, and a pair of counterweight guide rails 109B that guide the counterweight 105.

[0025] The car guide rail 109A includes a car guide rail 109Aa arranged on one side of the car 104 in the width direction (x-axis direction) of the car 104, and a car guide rail 109Ab arranged on the other side of the car 104 in the width direction (x-axis direction) of the car 104. The counterweight guide rail 109B includes a counterweight guide rail 109Ba arranged on one side of the counterweight 105 in the depth direction (y-axis direction) of the car 104, and a counterweight guide rail 109Bb arranged on the other side of the counterweight 105 in the depth direction (Y-axis direction) of the car 104.

[0026] One car guide rail 109Aa and one counterweight guide rail 109Ba are fixed to the hoistway wall HW1 by a shared rail bracket 108C shared by the car guide rail 109Aa and the counterweight guide rail 109Ba. The other car guide rail 109Ab is fixed to the hoistway wall HW1 by a car rail bracket 108A. The other counterweight guide rail 109Bb is fixed to the hoistway wall HW1 by a counterweight rail bracket 108B.

[0027] A pair of counterweight guide rails 109B and one car guide rail 109Aa are disposed in a space between one side surface 104d1 of the car 104 and the elevator shaft wall HW1. In this embodiment, the side surface 104d1 of the car 104 is the left side surface (left side surface) when facing the car 104 from the elevator hall 112. The common rail bracket 108C is fixed to the elevator shaft wall HW1 facing the left side surface 104d1 of the car 104 as viewed from the elevator hall 112. The counterweight rail bracket 108B is fixed to the elevator shaft wall HW1 facing the back surface 104d2 of the car 104. The car rail bracket 108A is fixed to the elevator shaft wall HW1 facing the right side surface (right side surface) 104d3 of the car 104 as viewed from the elevator hall 112. The arrangement of the pair of counterweight guide rails 109B and the pair of car guide rails 109A is not limited to the arrangement described above.

[0028] Hereinafter, when there is no need to distinguish between the car guide rail 109A and the counterweight guide rail 109B for the car and the counterweight, they will be simply referred to as guide rails 109 in the description.

[0029] As described above, the elevator device 100 of this embodiment comprises a hoist 102 having a sheave 102b, a main rope 107 wound around the sheave 102b and driven by the hoist 102, a car 104 and a counterweight 105 that move up and down the hoistway HW as the main rope 107 is driven, a guide rail 109 that guides the car 104 and the counterweight 105 as they move up and down, and a hoist support unit 120 that supports the hoist 102 in the hoistway HW.

[0030] The configuration of the support portion (hoisting machine support portion) 120 of the hoisting machine 102 will be described with reference to Figs. 3 to 5. Fig. 3 is a plan view showing the configuration of the hoisting machine support part 120 according to one embodiment of the present invention and its arrangement in the hoistway HW. Fig. 4 is a projection view of the hoisting machine support part 120 shown in Fig. 3 in the view of an arrow IV. Fig. 5 is a cross-sectional view of the hoisting machine support part 120 shown in Fig. 3 in the view of an arrow VV.

[0031] As shown in Figures 3 to 5, the hoisting machine support part 120 is disposed below the hoisting machine 102. The hoisting machine 102 is placed on the hoisting machine support part 120, which supports the weight of the hoisting machine 102 and the suspended load of the main ropes 107. The hoisting machine support part 120 is sometimes called a machine beam. In the following description, the surface of the main body part 102a of the hoisting machine 102 on which the sheave 102b is provided will be referred to as the front surface, and the opposite surface will be referred to as the back surface.

[0032] As shown in Fig. 4, the hoist support part 120 is installed between a pair of counterweight guide rails 109B and fixed to the counterweight guide rails 109B. The hoist support part 120 is connected to the counterweight guide rails 109B by a connecting member 126. The hoist support part 120 and the connecting member 126 are formed using shaped steel, castings, or the like.

[0033] The hoist 102 is placed on a frame 127 fixed to the hoist support section 120 via an elastic body (elastic member) 124. The hoist 102 is then fixed to the counterweight guide rail 109B via the elastic body 124, the frame 127, the hoist support section 120, and a connecting member 126. The hoist 102 is connected to the frame 127 by a connecting member with the elastic body (elastic member) 124 sandwiched therebetween. The connecting member may be, for example, a bolt and a nut, but is not limited thereto.

[0034] The elastic body 124 functions as a vibration-proofing member that suppresses the transmission of vibration. The vibration-proofing member is, for example, a vibration-proof rubber. Therefore, the hoist 102 can be displaced relative to the counterweight guide rail 109B within the deformable range of the elastic body 124, and the fixation of the hoist 102 to the counterweight guide rail 109B does not mean a strict fixation that does not allow even a slight displacement.

[0035] In this embodiment, as shown in Fig. 3 to Fig. 5, one rope end 107a of the main rope 107 is fixed to the hoisting machine support part 120 through the sheave 102b of the hoisting machine 102, the pulley 105a of the counterweight 105, and the sheave 102b of the hoisting machine 102. On the other hand, the other rope end 107b is fixed to the hoistway HW through the guide rail 109, through the pulley 104b of the car 104. Specifically, the other rope end 107b is fixed to a main rope fixing member 107c fixed to the car guide rail 109Ab, as shown in Fig. 3. The hoisting machine support part 120 also serves as a main rope fixing member for fixing one end 107a of the main rope 107.

[0036] The hoisting machine support part 120 can be manufactured at low cost by using standardized material (shaped steel). In a machine-room-less elevator system in which the control panel 101 and the hoisting machine 102 are arranged in the hoistway HW, when the hoisting machine support part 120 is manufactured, for example, from standardized material, the size of the hoisting machine support part 120 is determined by the shape (including dimensions) of the standardized material. For this reason, the dimensions of the hoistway HW are affected by the shape of the standardized material.

[0037] Since standardized steel sections have standard dimensions, there is no choice but to select steel sections from among the standard dimensions. In this case, of the width dimension W120 (see Fig. 4), height dimension H120 (see Fig. 4), and depth dimension D120 (see Fig. 5) of the hoisting machine support part 120, the height dimension H120 and depth dimension D120 are restricted by the standard dimensions, which creates a problem. The width dimension W120 can be dealt with by cutting the steel material to the desired length.

[0038] For example, the height dimension H120 of the hoisting machine support part 120 needs to be made relatively large in consideration of the deflection caused when the weight of the hoisting machine 102 is received. In this case, if a shaped steel is selected from standard dimensions according to the height dimension H120, the depth dimension D120 becomes larger than necessary, and the dimensions of the hoistway HW in which this hoisting machine support part 120 is disposed also become larger than the dimensions when the height dimension H120 and the depth dimension D120 are optimized.

[0039] Hereinafter, the numerical values ​​of the width dimension W120, height dimension H120, and depth dimension D120 required for the hoist support portion 120 will be referred to as the required dimensions (required values), and the standard dimensions that satisfy these required dimensions will be referred to as the required standard dimensions (required standard values).

[0040] As shown in Fig. 5, in this embodiment, the hoisting machine support part 120 has a configuration divided into two members 121, 122 in the depth direction (x-axis direction). That is, the hoisting machine support part 120 is divided into a first support member 121 and a second support member 122 in the rotation axis direction 102bx of the sheave. The second support member 122 is disposed on the side of the sheave 102b of the hoisting machine 102 with respect to the first support member 121, and the first support member 121 is disposed near the side wall HW1 of the hoistway HW with respect to the second support member 122.

[0041] The first support member 121 and the second support member 122 are positioned to support the weight of the hoisting machine 102 and the hanging load of the main ropes 107.

[0042] In this embodiment, the first support member 121 and the second support member 122 are formed of standardized material (shaped steel). When standardized material (shaped steel) is used for the first support member 121 and the second support member 122, the first support member 121 and the second support member 122 may be called a first standardized member (first shaped steel member) 121 and a second standardized member (second shaped steel member) 122.

[0043] For the pair of first support member 121 and second support member 122, a combination of shaped steel is selected such that the respective height dimensions H121, H122 satisfy the required dimensions and the sum of the respective depth dimensions D121, D122 (D121+D122) is equal to or less than the required depth dimension D120. In this case, the height dimensions H121 and H122 are the same value. That is, the first support member 121 and the second support member 122 have the same height dimensions H121, H122 and width dimensions W121, W122. Note that the width dimension W120 is accommodated by cutting the shaped steel to the required width dimension W120.

[0044] The first support member (first shaped steel member) 121 and the second support member (second shaped steel member) 122 can be arranged in parallel within the required depth dimension D120. When the sum of the depth dimensions D121, D122 (D121+D122) is less than the required depth dimension D120, it is advisable to provide a space (gap) δ between the first support member 121 and the second support member 122. As a result, the depth dimension when the pair of the first support member 121 and the second support member 122 are regarded as one member will be the same as the required depth dimension D120.

[0045] The depth dimension D121 and the depth dimension D122 may be the same numerical value or may be different numerical values. In this embodiment, the depth dimension D121 and the depth dimension D122 are different numerical values.

[0046] In this embodiment, as shown in FIG. 5, one rope end 107a of each of the main ropes 107 is fixed to the first support member 121. The reason why the rope ends 107a of all the main ropes 107 are arranged on the first support member 121 will be described in detail later, but such arrangement is facilitated by the fact that the depth dimension D121 of the first support member 121 in the rotation axis direction of the sheave 102b is larger than the depth dimension D122 of the second support member 122. In this embodiment, four main ropes 107 are provided, and it is preferable that the rope ends 107a of the four main ropes 107 are arranged close to each other rather than in a single row. For this reason, it is preferable that the depth dimension D121 of the first support member 121 to which the rope ends 107a of the four main ropes 107 are fixed can be secured large.

[0047] In this embodiment, channel steel is used for the first support member 121 and the second support member 122, but other shaped steels may be used. Also, different shaped steels may be used in combination. There are various types of channel steel, and any type may be used as long as it satisfies the conditions of strength and required dimensions.

[0048] In this embodiment, the hoisting machine support part 120 is composed of a pair of a first support member 121 and a second support member 122. This makes it possible to design the cross-sectional shape of the hoisting machine support part 120 that is optimal for the elevator shaft layout for each elevator device specification. In addition, manufacturability is improved, and manufacturing costs can be kept low. In this embodiment, the hoisting machine support part 120 is composed of a pair of a first support member 121 and a second support member 122. The hoisting machine support part 120 is not limited to this configuration, and may be divided into three or more parts.

[0049] Next, a fixing portion of the rope end (counterweight side rope end) 107a of the main rope 107 will be described with reference to FIG. As shown in Fig. 5, when the main rope 107 is wound around the sheave 102b, a rotational moment B due to a hanging load A of the main rope 107 acts on the hoisting machine support part 120. When the rotational moment B acts on the hoisting machine support part 120, the hoisting machine 102 tilts so as to fall from the upper side to the front side (the sheave 102b side). It is preferable to make the amount of this falling (tilt) of the hoisting machine 102 as small as possible.

[0050] In order to prevent the rotational moment B acting on the hoisting machine support part 120 from becoming large, more than half of the rope ends 107a fixed to the hoisting machine support part 120 are fixed to a first support member 121 arranged on the hoistway wall HW1 side. That is, the main rope 107 is composed of multiple main ropes. One rope end 107a of the multiple main ropes 107 is fixed to the hoisting machine support part 120. The rope ends 107a of more than half of the main ropes of the multiple main ropes 107 are fixed to the first support member 121.

[0051] The second support member 122 receives a large rotational moment B due to the hanging load of the main rope 107 wound around the sheave 102b of the hoist 102. By fixing half of the multiple rope ends 107a to the first support member 121, the rope ends 107a fixed to the first support member 121 and the rope ends 107a fixed to the second support member 122 become equal. This makes it possible to prevent an increase in the rotational moment B due to fixing the rope end (the rope end on the counterweight side) 107a.

[0052] Furthermore, by increasing the number of rope ends 107a fixed to the first support member 121 to more than half, a rotational moment is generated in the opposite direction to the rotational moment B due to the hanging load of the main rope 107 wound around the sheave 102b, which creates a countervailing effect against the rotational moment B, thereby achieving the effect of reducing the rotational moment B.

[0053] In order to maximize the effect of reducing the rotational moment B, it is preferable that all of the rope ends 107a are fixed to the first support member 121.

[0054] According to this embodiment, since the rotation moment B acting on the hoisting machine support part 120 can be suppressed, it is possible to reduce the cross-sectional shapes of the first support member 121 and the second support member 122. This increases the types of dimensional materials (shaped steel) that can be used, improving the degree of freedom in design.

[0055] A modified example of the hoist support part 120 will be described with reference to Fig. 6. Fig. 6 is a cross-sectional view similar to the cross-section taken along the arrow VV in Fig. 3, showing a modified example of the hoist support part 120 according to an embodiment of the present invention. Configurations similar to those in the above-described embodiment are given the reference numerals used in the above-described embodiment, and duplicated explanations will be omitted.

[0056] The following describes configurations and effects that differ from the above-described embodiment. In this modification, the first support member 121 and the second support member 122 have the same shape, and are arranged with their orientation in the x-axis direction swapped.

[0057] In this example, the depth dimension D121 of the first supporting member 121 and the depth dimension D122 of the second supporting member 122 are small, and a large gap is formed in the x-axis direction between the first supporting member 121 and the second supporting member 122. For this reason, members (e.g., flat steel) 123 and 124 that connect the first supporting member 121 and the second supporting member 122 are provided above and below the first supporting member 121 and the second supporting member 122.

[0058] That is, in this example, the first supporting member 121 and the second supporting member 122 are formed from shaped steel of the same shape, and members (for example, flat steel) 123, 124 connecting the upper and lower sides of the first supporting member 121 and the second supporting member 122 are provided.

[0059] The flat bars 123, 124 are inexpensive and easily available, and channel bars with small depth dimensions D121, D122 are also inexpensive and easily available, making them easy to manufacture and to accommodate various elevator device specifications.

[0060] The present invention is not limited to the above-mentioned embodiment, and includes various modified examples. For example, the above-mentioned embodiment is a detailed explanation of the present invention for easy understanding, and the present invention is not necessarily limited to those including all of the configurations described. In addition, it is possible to add, delete, or replace part of the configuration of the embodiment with other configurations. [Explanation of symbols]

[0061] 100... elevator device, 102b... sheave, 102bx... rotation axis direction of sheave 102b, 102... hoist, 104... car, 105... counterweight, 105a... pulley of counterweight 105, 107... main rope, 107a... one rope end of main rope 107, 107b... other rope end of main rope 107, 109... guide rail, 120... hoist support part, 121... First support member, 122...second support member, 123, 124...flat steel, D121...depth dimension of first support member 121, D122...depth dimension of second support member 122, H121...height dimension of first support member 121, H122...height dimension of second support member 122, HW...hoistway, HW1...side wall of hoistway HW, W121...width dimension of first support member 121, W122...width dimension of second support member 122.

Claims

1. An elevator system including a hoist having a sheave, a main rope wound around the sheave and driven by the hoist, a car and a counterweight that ascend and descend in a hoistway as the main rope is driven, a guide rail that guides the ascending and descending of the car and the counterweight, and a hoist support that supports the hoist in the hoistway, The elevator apparatus according to claim 1, wherein the hoist support portion is divided into a first support member and a second support member in a direction of a rotation axis of the sheave.

2. In claim 1, The second support member is disposed on a side of the sheave of the hoisting machine relative to the first support member, The elevator apparatus according to claim 1, wherein the first support member is disposed closer to a side wall of a hoistway than the second support member.

3. In claim 2, The elevator apparatus according to claim 1, wherein the first support member and the second support member have the same height and width dimensions.

4. In claim 3, An elevator apparatus, characterized in that the first support member and the second support member are arranged to support the weight of the hoisting machine and the hanging load of the main rope.

5. In claim 4, The main rope is composed of a plurality of main ropes, One rope end of each of the main ropes is fixed to the hoist support portion, The elevator apparatus according to claim 1, wherein rope ends of at least half of the main ropes are fixed to the first support member.

6. In claim 5, An elevator apparatus characterized in that the first support member has a depth dimension in the rotation axis direction that is larger than a depth dimension of the second support member.

7. In claim 6, The elevator apparatus according to claim 1, wherein the first support member and the second support member are formed of structural steel.

8. In claim 7, An elevator apparatus, characterized in that one rope ends of the plurality of main ropes are all fixed to the first support member.

9. In claim 8, One rope end of the plurality of main ropes is fixed to the hoist support part through the sheave of the hoist and the pulley of the counterweight, The other rope ends of the plurality of main ropes are fixed to a hoistway via the guide rail after passing through the sheave of the hoisting machine and the pulley of the car.

10. In claim 5, The first support member and the second support member are formed of shaped steel having the same shape, An elevator apparatus comprising a member connecting the upper and lower sides of the first support member and the second support member.

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