Elevator car and elevator

Abstract

The invention provides an elevator car and an elevator which can restrain weight increase of a floor assembly and ensure strength of the floor assembly. An elevator car is provided with a floor assembly (10). The floor assembly (10) is provided with a floor main body (20) and frames (22, 23) for supporting the floor main body (20). The floor body (20) is provided with a lower plate (25), an upper plate (21), a plurality of beam members (31) disposed between the lower plate (25) and the upper plate (25), and reinforcing beam members disposed between the lower plate and the upper plate and having higher strength than the beam members.

Description

Technical Field

[0001] The invention relates to an elevator car and an elevator. Background Art

[0002] In the past, the elevator was equipped with an elevator car, a counterweight, a suspension rope connecting the elevator car and the counterweight, and a hoisting machine for winding the suspension rope. In addition, the elevator car was equipped with a floor assembly constituting a floor.

[0003] As a conventional technology related to a floor assembly, there is a technology described in Patent Document 1, for example. Patent Document 1 describes a technology including a plate, a reinforcing member disposed on one main surface of the plate, and an adhesive layer for bonding the plate and the reinforcing member.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2023-23552

[0007] In addition, a plurality of beam members, which represent reinforcing members, are arranged between the upper plate and the lower plate. Here, when a load is applied to the floor assembly, stress is concentrated on the beam members. Furthermore, in order to ensure strength, in the prior art, the thickness of the beam members is increased, or reinforcing members are provided on all of the plurality of beam members. As a result, there are problems such as an increase in the number of components and an increase in the weight of the floor assembly. Summary of the invention

[0008] Problems to be solved by the invention

[0009] In view of the above-mentioned problems, an object of the present invention is to provide an elevator car and an elevator capable of suppressing an increase in the weight of a floor assembly and ensuring the strength of the floor assembly.

[0010] Solutions to Solve Problems

[0011] In order to solve the above-mentioned problems, a floor assembly is provided, which becomes a floor surface of an elevator car room constituting an elevator car. The floor assembly includes: a floor body; and a frame which surrounds the periphery of the floor body and supports the floor body. The floor body includes: a lower plate; an upper plate which is opposed to the lower plate in the vertical direction; a beam member which is arranged between the lower plate and the upper plate; and a reinforcing beam member which is arranged between the lower plate and the upper plate and has higher strength than the beam member.

[0012] In addition, the elevator is equipped with an elevator car that moves up and down in the elevator passage. In addition, the elevator car applies the elevator car having the above-mentioned structure.

[0013] Effects of the Invention

[0014] According to the elevator car and the elevator having the above-described structure, it is possible to suppress an increase in the weight of the floor assembly and to ensure the strength of the floor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic configuration diagram showing an elevator according to an embodiment.

[0016] Figure 2 It is a perspective view showing an elevator car according to the embodiment.

[0017] Figure 3 It is a perspective view showing a floor assembly of an elevator car according to the embodiment.

[0018] Figure 4 It is a plan view showing a floor assembly of an elevator car according to the embodiment.

[0019] Figure 5 This is a perspective view showing a floor assembly in an elevator car according to the embodiment, with an upper plate of a floor main body removed.

[0020] Figure 6 This is a perspective view showing an enlarged end portion of a beam member of a floor body of an elevator car according to the embodiment.

[0021] Figure 7 This is a perspective view showing an enlarged beam member of a floor body of an elevator car according to the embodiment and an end portion of a reinforcement frame.

[0022] Figure 8 It is a cross-sectional view showing a floor assembly of an elevator car according to the embodiment.

[0023] Fig. 9 1 is a diagram showing a beam member of a floor assembly of an elevator car according to an embodiment. Fig. 9 A is the main view, Fig. 9 B is a side view.

[0024] Description of Reference Numerals

[0025] 1: elevator, 2: elevator car, 3: main hoist, 4: hoist, 9: elevator car room, 10: floor assembly, 11: front panel, 11a: entrance, 12: ceiling, 13: door, 14: side panel, 16: frame, 18: door sill, 20: floor body, 21: upper panel, 22: side floor frame (frame), 22a: outer end, 22b: side panel, 22c: lower surface, 23: rear floor frame (frame), 25: lower panel, 31: beam member, 31A: first beam member, 31B: second beam member (reinforcement beam member), 31C: third beam member, 32: reinforcement frame, 32a: slit, 34: reinforcement member. DETAILED DESCRIPTION

[0026] Below, refer to Figure 1 to Figure 9 Embodiment examples of the elevator car and the elevator will be described. It should be noted that the same reference numerals are given to common components in each figure.

[0027] 1. Example of elevator structure

[0028] First, refer to Figure 1 The structure of an elevator according to an embodiment example (hereinafter referred to as “this example”) will be described.

[0029] Figure 1 1 is a diagram showing a schematic structure of the elevator of this example.

[0030] exist Figure 1 In the example shown, a so-called 2:1 roping elevator 1 is shown. It should be noted that the elevator is not limited to a 2:1 roping elevator, and can also be applied to a 1:1 roping elevator.

[0031] like Figure 1 As shown, the elevator 1 includes an elevator car 2 that moves up and down in an elevator shaft, a main rope 3, a hoist 4, and a counterweight 5 suspended from the elevator car 2 via the main rope 3. Hereinafter, the direction in which the elevator car 2 and the counterweight 5 move up and down is referred to as the up and down direction.

[0032] The elevator car 2 has an elevator car room 9 for carrying people and cargo. An elevator car side pulley 2a is provided at the upper part of the elevator car 2 in the vertical direction. The main rope 3 is wound around the elevator car side pulley 2a. The counterweight 5 is provided with a counterweight side pulley 5a. The main rope 3 is wound around the counterweight side pulley 5a.

[0033] The hoisting machine 4 is installed at the uppermost part of the hoisting passage. In addition, the hoisting machine 4 has a sheave around which the main rope 3 is wound. And the hoisting machine 4 raises and lowers the elevator car 2 and the counterweight 5 in a bucket-like manner via the main rope 3.

[0034] One end of the main rope 3 is installed on the upper part of the lifting passage. The main rope 3 extends from the upper part of the lifting passage toward the elevator car side pulley 2a. And the main rope 3 is wound around the elevator car side pulley 2a, the rope sheave of the hoist 4, and the counterweight side pulley 5a in sequence from one end.

[0035] The other end of the main rope 3 extending from the counterweight side pulley 5a toward the upper part of the hoistway is attached to the upper part of the hoistway in the same manner as the first end. The hoisting machine 4 is driven to move the elevator car 2 and the counterweight 5 up and down in the hoistway.

[0036] 2. Example of elevator car structure

[0037] Figure 2 It is a perspective view showing the elevator car 2 .

[0038] like Figure 1 as well as Figure 2 As shown in FIG. 1 , the elevator car 2 includes a hollow elevator car chamber 9, a door portion 13, and a frame 16 (see FIG. 1 ). Figure 2 ) and the elevator car side pulley 2a. Figure 2 As shown, the elevator car room 9 includes a front panel 11, a side panel 14, a floor assembly 10 serving as a floor surface of the elevator car room 9, and a ceiling 12. The floor assembly 10 and the ceiling 12 are disposed facing each other in the up-down direction.

[0039] The front panel 11 and the side panels 14 are erected around the floor assembly 10 and the ceiling 12. It should be noted that the front panel 11 is provided with an entrance 11a. Figure 1 ) can be set to open and close.

[0040] The elevator car room 9 having the above-mentioned structure is supported by a frame 16. The frame 16 has two longitudinal frames extending in the up-down direction and a transverse frame extending in the left-right direction as the width direction. In addition, the floor assembly 10 of the elevator car room 9 is supported by a lower transverse frame arranged at the lower part in the up-down direction among the transverse frames. And, the elevator car side pulley 2a is installed at the lower part of the lower transverse frame.

[0041] 3. Example of floor assembly structure

[0042] Next, refer to Figures 3 to 7 The structure of the floor assembly 10 will be described.

[0043] Figure 3 is a perspective view showing the floor assembly 10, Figure 4 It is a plan view showing the floor assembly 10 .

[0044] like Figure 3 as well as Figure 4 As shown, the floor assembly 10 includes a floor body 20, a door sill 18, and a side floor frame 22 and a rear floor frame 23 that constitute a frame.

[0045] The floor body 20 is formed in a substantially rectangular shape. A door sill 18 is fixed to the front end portion in the front-rear direction of the floor body 20, that is, the front portion. The door sill 18 supports the door portion 13 so that it can move. In addition, a rear floor frame 23 is fixed to the rear end portion in the front-rear direction of the floor body 20. The rear floor frame 23 extends along the width direction of the floor body 20 that is orthogonal to the front-rear direction. Side floor frames 22 are fixed to both ends in the width direction of the floor body 20. The side floor frames 22 extend along the front-rear direction of the floor body 20. Therefore, the door sill 18, the side floor frames 22, and the rear floor frame 23 are arranged in a manner surrounding the four sides of the floor body 20. In addition, the floor body 20 is supported by the side floor frames 22 and the rear floor frame 23 that constitute the frame. And the floor body 20 is supported by the frame 16 via the side floor frames 22.

[0046] The floor body 20 has an upper plate 21 which is a plate member. The upper plate 21 is formed in a substantially rectangular flat plate shape.

[0047] Figure 5 It is a perspective view showing the floor assembly 10 in a state where the upper plate 21 of the floor body 20 is removed. Figure 6 This is a perspective view showing an enlarged end portion of a beam member 31 described later in the floor body 20 .

[0048] Figure 7 This is a perspective view showing an enlarged view of end portions of a beam member 31 and a reinforcement frame 32 in the floor body 20 , which will be described later.

[0049] like Figures 5 to 7 As shown, the floor body 20 includes a lower plate 25 vertically opposed to the upper plate 21, a plurality of beam members 31 constituting reinforcing ribs, a pair of reinforcement frames 32, and reinforcement members 34. The plurality of beam members 31 and the pair of reinforcement frames 32 are interposed between the upper plate 21 and the lower plate 25.

[0050] The cross-sectional shape of the beam member 31 and the reinforcement frame 32 cut in the vertical direction is formed into a substantially U-shaped (C-shaped) shape. In addition, the beam member 31 is a long steel material. It should be noted that the shape of the beam member 31 is not limited to the above example, and various other shapes can be applied.

[0051] A pair of reinforcement frames 32 are disposed on two sides of the lower plate 25 that are opposite to each other. In addition, the reinforcement frames 32 are disposed at the front end and the rear end of the lower plate 25 in the front-rear direction. In addition, the reinforcement frames 32 extend along the width direction of the lower plate 25. In addition, as Figure 7 As shown, a plurality of slits 32 a for positioning the plurality of beam members 31 are formed in the reinforcement frame 32 .

[0052] The plurality of beam members 31 are arranged so that their length directions are parallel to the front-rear direction of the lower plate 25. The beam members 31 are arranged so that their length directions are parallel to the length directions of the side floor frames 22. In addition, the beam members 31 are arranged in a row at intervals in the width direction of the lower plate 25. Both ends of the beam members 31 in the length direction are fitted into the slits 32a formed in the reinforcement frame 32.

[0053] The plurality of beam members 31 and the pair of reinforcement frames 32 , 32 are fixed to the lower plate 25 and the upper plate 21 by, for example, bonding with an adhesive, or by other various fixing methods such as fastening and fixing with rivets or fixing bolts.

[0054] In addition, an example in which the beam member 31 is arranged parallel to the front-rear direction of the lower plate 25 is described, but the present invention is not limited thereto, and the beam member 31 may be arranged so that its length direction is parallel to the width direction of the lower plate 25. It should be noted that by arranging the beam member 31 parallel to the front-rear direction of the lower plate 25, interference between the beam member 31 and rivets, fixing screws, etc. provided on the floor assembly 10 or the frame can be easily avoided.

[0055] Figure 8 2 is a cross-sectional view showing the floor assembly 10 .

[0056] like Figure 8 As shown in the figure, the cross-sectional shape of the side floor frame 22 cut in the vertical direction is formed into a substantially L-shape. The side floor frame 22 has a side surface portion 22b and a lower surface portion 22c orthogonal to the side surface portion 22b. The side surface portion 22b is opposed to the end portion in the width direction of the floor body 20. The lower surface portion 22c is bent substantially perpendicularly from the side surface portion 22b toward the center portion in the width direction of the floor body 20. The lower surface portion 22c is opposed to the lower surface of the lower plate 25 of the floor body 20 in the vertical direction by a predetermined length from the two ends in the width direction of the floor body 20. That is, the lower surface portion 22c is opposed only to the two ends in the width direction of the lower surface of the floor body 20.

[0057] Here, when a load is applied to the floor body 20, stress is concentrated on both ends in the width direction of the floor body 20. At this time, the beam member 31 (hereinafter referred to as the first beam member 31A) disposed on the outermost side in the width direction among the plurality of beam members 31 is disposed on the lower surface portion 22c of the side floor frame 22. Therefore, the stress applied to the first beam member 31A can be supported by the side floor frame 22.

[0058] On the other hand, among the plurality of beam members 31, the beam member 31 (hereinafter referred to as the second beam member 31B) disposed on the inner side in the width direction than the first beam member 31A is disposed on the outer end portion 22a of the lower surface portion 22c of the side floor frame 22. That is, the second beam member 31B overlaps a portion of the lower surface portion 22c of the side floor frame 22. Furthermore, among the plurality of beam members 31, the beam member (hereinafter referred to as the third beam member 31C) disposed on the inner side in the width direction than the second beam member 31B is not disposed on the lower surface portion 22c of the side floor frame 22. Therefore, when a load is applied to the floor body 20, the second beam member 31B among the plurality of beam members 31 is the location where stress is concentrated.

[0059] Therefore, if Figures 6 to 8 As shown, the reinforcing member 34 is provided only in the second beam member 31B where the stress is most concentrated among the plurality of beam members 31. Therefore, the second beam member 31B is configured as a reinforcing beam member with higher strength than the other beam members 31A and 31B. Thus, the strength of the floor assembly 10 can be ensured. Furthermore, by not providing the reinforcing member 34 in all of the plurality of beam members 31, the number of components can be reduced, and the increase in the weight of the floor assembly 10 can be suppressed. Furthermore, the load borne by the work of attaching the reinforcing member 34 to the beam member 31 can be reduced.

[0060] The cross-sectional shape of the reinforcing member 34 cut in the up-down direction is formed into a substantially L-shape. In addition, two reinforcing members 34, 34 are fixed to the end of the second beam member 31B. The two reinforcing members 34 are fixed to two locations, the upper part and the lower part, inside the second beam member 31B. In this way, by dividing the reinforcing member 34 into two and fixing them to the end of the second beam member 31B, the reinforcing member 34 can be easily inserted into the second beam member 31B.

[0061] Furthermore, by arranging the reinforcing member 34 on the inner side of the second beam member 31B rather than on the outer side of the second beam member 31B, it is possible to prevent the outer diameter of the second beam member 31B from being larger than the outer diameters of the other beam members 31A and 31C. In other words, it is possible to prevent the height of the second beam member 31B from being higher than the other beam members 31A and 31C when the plurality of beam members 31 are arranged in a row on the lower plate 25.

[0062] In addition, when the cross-sectional shape cut in the vertical direction of the reinforcing member 34 is formed into a substantially U-shaped shape similarly to the second beam member 31B, high processing accuracy is required for the reinforcing member 34 and the second beam member 31B. In contrast, by forming the reinforcing member 34 into a substantially L-shaped shape and dividing it into two, the processing accuracy of the reinforcing member 34 can be reduced, and the fixing operation of the reinforcing member 34 can be easily performed. In addition, as a fixing method for the reinforcing member 34, for example, various other fixing methods such as fastening and fixing using fixing bolts and welding can be applied.

[0063] Fig. 9 3 is a diagram showing the second beam member 31B. Fig. 9 A is the main view, Fig. 9 B is a side view. Fig. 9 A and Fig. 9 As shown in FIG. 1B, the reinforcing member 34 is disposed only at both ends of the second beam member 31B in the longitudinal direction where the stress is most concentrated. Thus, compared with the case where the reinforcing member 34 is disposed on the entire second beam member 31B, the weight of the second beam member 31B can be reduced, and the installation operation can be easily performed.

[0064] In addition, by fixing the reinforcing member 34 to the end of the second beam member 31B, the structure of the second beam member 31B can be made the same as that of the first beam member 31A and the third beam member 31C. As a result, the plurality of beam members 31A, 31B, and 31C can be made common, and the processing and assembling properties of the floor assembly 10 can be improved.

[0065] It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention described in the technical claims.

[0066] In addition, the beam member 31 is described as being made of a U-shaped steel material, but the present invention is not limited thereto, and the beam member 31 may be made of a square prism-shaped steel material, H-shaped steel, or other various shapes. Furthermore, the reinforcing member 34 may be appropriately set according to the shape of the beam member 31 .

[0067] In the above-mentioned embodiment, the example in which the reinforcing member 34 is provided only in the second beam member 31B among the plurality of beam members 31 is described, but the present invention is not limited thereto. For example, the reinforcing member 34 may also be provided in the first beam member 31A disposed at the outermost side in the width direction of the floor body 20 among the plurality of beam members 31, or in the beam member 31 disposed in the center portion in the width direction.

[0068] In addition, the beam member 31 provided with the reinforcing member 34 among the plurality of beam members 31 is set according to the position of the outer end 22a of the lower surface portion 22c of the side floor frame 22 constituting the frame of the floor assembly 10. That is, the reinforcing member 34 is provided on the beam member 31 on the outer end 22a of the lower surface portion 22c of the frame among the plurality of beam members 31, or on the beam member 31 separated from the lower surface portion 22c and closest to the outer end 22a. It should be noted that, usually, the second beam member 31B, which is the second from the outer side in the width direction among the plurality of beam members 31, is arranged on the outer end 22a of the lower surface portion 22c of the frame, similarly to the floor assembly 10 of the present example described above.

[0069] In addition, when the beam member 31 is arranged so that its longitudinal direction is parallel to the width direction of the lower plate 25, the reinforcement member 34 is arranged on the beam member 31 on the outer end portion of the lower surface portion of the frame (rear floor frame 23, door sill 18) among the plurality of beam members 31, or on the beam member 31 closest to the outer end portion 22a.

[0070] In addition, in the above-mentioned embodiment, the example in which the reinforcing member 34 is provided as another member on the beam member 31 and the second beam member 31B is used as a reinforcing beam member is described, but the present invention is not limited thereto, and the reinforcing member 34 may be formed integrally with the beam member 31. That is, a structure may be used to reinforce a predetermined beam member by thickening a part of the predetermined beam member, for example.

[0071] Furthermore, as an elevator, it is also applicable to a multi-car elevator in which a plurality of elevator cars move up and down in one elevator shaft.

[0072] It should be noted that, in this specification, words such as "parallel" and "orthogonal" are used, but they do not mean only strictly "parallel" and "orthogonal", but can also mean a state of "approximately parallel" or "approximately orthogonal" that includes "parallel" and "orthogonal" and is within the range where they can perform their functions.

Claims

1. An elevator car, wherein: The elevator car includes a floor assembly that serves as a floor surface of an elevator car room constituting the elevator car. The floor assembly comprises: The main body of the floor; and a frame surrounding the floor main body and supporting the floor main body, The floor main body comprises: lower plate; an upper plate, which is opposed to the lower plate in the up-down direction; a beam member disposed between the lower plate and the upper plate; and The reinforcing beam member is disposed between the lower plate and the upper plate and has higher strength than the beam member.

2. The elevator car according to claim 1, wherein: The reinforcing beam member includes a reinforcing member, The reinforced beam member is formed by providing the reinforcing member in a prescribed beam member among the plurality of beam members.

3. The elevator car according to claim 2, wherein: The frame has a lower surface portion that is opposed to a portion of the lower surface of the lower plate in the up-down direction. The reinforcing member is provided at a beam member at a position corresponding to a position of an outer end portion of the lower surface portion among the plurality of beam members.

4. The elevator car according to claim 3, wherein: The reinforcing member is provided on a beam member on an outer end portion of the lower surface portion, or a beam member separated from the lower surface portion and closest to a lower end portion of the lower surface portion, among the plurality of beam members.

5. The elevator car according to claim 3, wherein: The frame has a side floor frame arranged parallel to the front-rear direction of the floor body. The plurality of beam members are arranged at intervals in a width direction perpendicular to the front-rear direction of the floor body. The beam member is configured such that the length direction of the beam member is parallel to the side floor frame. The reinforcing member is provided on a beam member on an outer end portion of the lower surface portion of the side floor frame, or a beam member separated from the lower surface portion and closest to a lower end portion of the lower surface portion, among the plurality of beam members.

6. The elevator car according to claim 2, wherein: The reinforcing member is provided only at both ends of the beam member in the longitudinal direction.

7. The elevator car according to claim 2, wherein: The reinforcement member is fixed to the inner side of the beam member.

8. The elevator car according to claim 7, wherein: The cross-sectional shape of the beam member cut in the vertical direction is formed into a U-shape, The reinforcing member is formed in an L shape, and two reinforcing members are fixed to each of the two end portions of the beam member.

9. An elevator, wherein: The elevator includes an elevator car that moves up and down in an elevator shaft. The elevator car includes a floor assembly that serves as a floor surface of the elevator car room. The floor assembly comprises: The main body of the floor; and a frame surrounding the floor main body and supporting the floor main body, The floor main body comprises: lower plate; an upper plate, which is opposed to the lower plate in the up-down direction; a beam member disposed between the lower plate and the upper plate; and The reinforcing beam member is disposed between the lower plate and the upper plate and has higher strength than the beam member.

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