Elevator car and elevator

Abstract

To provide an elevator car and an elevator that are able to ensure the strength of a floor assembly by restricting an increase in the weight of the floor assembly.SOLUTION: An elevator car includes a floor assembly 10. The floor assembly 10 includes a floor body 20 and frames 22, 23 for supporting the floor body 20. The floor body 20 includes: a lower panel 25; an upper panel; a beam member disposed between the lower panel 25 and the upper panel; and a reinforcing beam member 31B disposed between the lower panel and the upper panel and having strength higher than the beam member.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a car and an elevator. [Background technology]

[0002] Conventionally, an elevator includes a car, a counterweight, a rope connecting the car and the counterweight, and a hoist around which the rope is wound. The car also includes a floor assembly that constitutes the floor.

[0003] Conventional floor assembly technologies include, for example, that described in Patent Document 1. Patent Document 1 describes a technology that includes a plate material, a reinforcing member disposed on one main surface side of the plate material, and an adhesive layer that bonds the plate material and the reinforcing member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2023-23552 A Summary of the Invention [Problem to be solved by the invention]

[0005] Furthermore, a plurality of beam members, which are reinforcing members, are arranged in a line between the upper panel and the lower panel. When a load is applied to the floor assembly, stress is concentrated on the beam members. In order to ensure the strength, in the conventional technology, the thickness of the beam members is increased or reinforcing members are provided on all of the beam members. As a result, there is a problem that the number of parts increases and the weight of the floor assembly increases.

[0006] In consideration of the above problems, an object of the present invention is to provide a car and elevator that can suppress an increase in the weight of the floor assembly and ensure the strength of the floor assembly. [Means for solving the problem]

[0007] In order to solve the above problems, the elevator includes a floor assembly that serves as the floor surface of a car room that constitutes an elevator car. The floor assembly includes a floor body and a frame that surrounds the periphery of the floor body and supports the floor body. The floor body includes a lower panel, an upper panel that faces the lower panel in the vertical direction, a beam member disposed between the lower panel and the upper panel, and a reinforcing beam member that is disposed between the lower panel and the upper panel and has a strength higher than that of the beam member.

[0008] The elevator also includes a car that moves up and down the elevator shaft. The car may have the above-described configuration. Effect of the Invention

[0009] According to the car and elevator having the above-mentioned configuration, an increase in the weight of the floor assembly can be suppressed, and the strength of the floor assembly can be ensured. [Brief description of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing an elevator according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a perspective view showing a passenger car according to an embodiment. [Diagram 3] 1 is a perspective view showing a floor assembly of a passenger car according to an embodiment of the present invention; [Figure 4] 1 is a plan view showing a floor assembly of a passenger car according to an embodiment of the present invention. FIG. [Diagram 5] 1 is a perspective view showing a floor assembly in a passenger car according to an embodiment with the upper panel of the floor body removed; FIG. [Figure 6] 1 is an enlarged perspective view showing an end portion of a beam member of a floor body of a passenger car according to an embodiment of the present invention; FIG. [Figure 7] 2 is an enlarged perspective view showing the ends of the beam members and reinforcing frames of the floor body of the passenger car according to the embodiment. FIG. [Figure 8] 1 is a cross-sectional view showing a floor assembly of a passenger car according to an embodiment of the present invention. [Figure 9] 9A and 9B show a beam member of a floor assembly of a car according to an embodiment, with FIG. 9A being a front view and FIG. 9B being a side view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the car and elevator will be described with reference to Fig. 1 to Fig. 9. In addition, the same reference numerals are used to designate common members in each drawing.

[0012] 1. Elevator configuration example First, the configuration of an elevator according to an embodiment (hereinafter, referred to as "this example") will be described with reference to FIG. FIG. 1 is a schematic diagram showing the elevator of this example.

[0013] The example shown in Fig. 1 shows a so-called 2:1 roping type elevator 1. Note that the elevator is not limited to the 2:1 roping type elevator, and the present invention can also be applied to a 1:1 roping type elevator.

[0014] As shown in Fig. 1, an elevator 1 has a car 2 that rises and falls in a hoistway, a main rope 3, a hoist 4, and a counterweight 5 suspended from the car 2 via the main rope 3. Hereinafter, the direction in which the car 2 and the counterweight 5 rise and fall is referred to as the up and down direction.

[0015] The car 2 has a car chamber 9 for carrying passengers and baggage. A car side pulley 2a is provided at the top in the vertical direction of the car 2. A main rope 3 is wound around the car side pulley 2a. The counterweight 5 is provided with a weight side pulley 5a. The main rope 3 is wound around the weight side pulley 5a.

[0016] The hoisting machine 4 is installed at the top of the elevator shaft. The hoisting machine 4 has a sheave around which the main rope 3 is wound. The hoisting machine 4 raises and lowers the car 2 and the counterweight 5 via the main rope 3 in a bucket-like manner.

[0017] One end of the main rope 3 is attached to the upper part of the hoistway. The main rope 3 extends from the upper part of the hoistway toward the car-side pulley 2a. The main rope 3 is then wound from its one end around the car-side pulley 2a, the sheave of the hoisting machine 4, and the weight-side pulley 5a, in that order.

[0018] The other end of the main rope 3 extending from the weight-side pulley 5a toward the top of the hoistway is attached to the upper part of the hoistway, similar to the one end. When the hoisting machine 4 is driven, the car 2 and the counterweight 5 move up and down in the hoistway.

[0019] 2. Example of car configuration FIG. 2 is a perspective view showing the car 2. As shown in FIG. As shown in Figures 1 and 2, the car 2 includes a hollow car chamber 9, a door section 13, a frame body 16 (see Figure 2), and a car side pulley 2a. As shown in Figure 2, the car chamber 9 includes a front plate 11, a side plate 14, a floor assembly 10 that forms the floor surface of the car chamber 9, and a ceiling 12. The floor assembly 10 and the ceiling 12 are disposed facing each other in the vertical direction.

[0020] The front panel 11 and the side panels 14 are erected around the floor assembly 10 and the ceiling 12. An entrance 11a is provided in the front panel 11. A door section 13 (see FIG. 1) is installed in the entrance 11a so as to be able to be opened and closed.

[0021] The car chamber 9 having the above-mentioned configuration is supported by a frame body 16. The frame body 16 has two vertical frames extending in the up-down direction and a horizontal frame extending in the left-right direction, which is the width direction. Furthermore, a floor assembly 10 of the car chamber 9 is supported by a lower horizontal frame that is disposed below in the up-down direction among the horizontal frames. Furthermore, a car side pulley 2a is attached to the lower part of the lower horizontal frame.

[0022] 3.Examples of floor assembly configurations Next, the configuration of the floor assembly 10 will be described with reference to FIGS. FIG. 3 is a perspective view showing the floor assembly 10, and FIG. As shown in FIGS. 3 and 4, the floor assembly 10 has a floor body 20, a door sill 18, and a side floor frame 22 and a rear floor frame 23 that form a frame.

[0023] The floor body 20 is formed in a substantially rectangular shape. A door sill 18 is fixed to the front end, i.e., the front part, of the floor body 20 in the front-rear direction. The door sill 18 movably supports the door part 13. A rear floor frame 23 is fixed to the rear end, in the front-rear direction, of the floor body 20. The rear floor frame 23 extends along the width direction perpendicular to the front-rear direction of the floor body 20. 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 so as to surround the four sides of the floor body 20. The floor body 20 is supported by the side floor frames 22 and the rear floor frame 23 that constitute the frame. The floor body 20 is supported by the frame body 16 via the side floor frames 22.

[0024] The floor body 20 has an upper panel 21 which is a panel member. The upper panel 21 is formed in a substantially rectangular flat plate shape.

[0025] Fig. 5 is a perspective view showing the floor assembly 10 with the upper panel 21 of the floor main body 20 removed. Fig. 6 is an enlarged perspective view showing the end of a beam member 31, described later, in the floor main body 20. Fig. 7 is an enlarged perspective view showing the end of a beam member 31 and a reinforcing frame 32, described later, in the floor main body 20.

[0026] 5 to 7, the floor body 20 has a lower panel 25 that faces the upper panel 21 in the up-down direction, a plurality of beam members 31 that form joists, a pair of reinforcing frames 32, and a reinforcing member 34. The plurality of beam members 31 and the pair of reinforcing frames 32 are interposed between the upper panel 21 and the lower panel 25.

[0027] The cross section of the beam member 31 and the reinforcing frame 32 cut in the vertical direction is formed to be substantially U-shaped (C-shaped). The beam member 31 is a long steel material. The shape of the beam member 31 is not limited to the above-mentioned example, and various other shapes can be applied.

[0028] The pair of reinforcing frames 32 are disposed on two opposing sides of the lower panel 25. The reinforcing frames 32 are also disposed at the front and rear ends in the front-to-rear direction of the lower panel 25. The reinforcing frames 32 extend along the width direction of the lower panel 25. As shown in Fig. 7, the reinforcing frame 32 is formed with a plurality of slits 32a for positioning the plurality of beam members 31.

[0029] The multiple beam members 31 are arranged so that their longitudinal direction is parallel to the front-to-rear direction of the lower panel 25. The beam members 31 are arranged so that their longitudinal direction is parallel to the longitudinal direction of the side floor frame 22. The beam members 31 are also arranged side by side at intervals in the width direction of the lower panel 25. Both longitudinal ends of the beam members 31 are fitted into slits 32a formed in the reinforcing frame 32.

[0030] The multiple beam members 31 and the pair of reinforcing frames 32, 32 are fixed to the lower panel 25 and the upper panel 21 by various fixing methods, such as adhesively fixing them using an adhesive, or fastening them using rivets or fixing bolts.

[0031] Also, although an example has been described in which the beam members 31 are arranged parallel to the front-to-rear direction of the lower panel 25, the present invention is not limited to this, and the beam members 31 may be arranged so that their longitudinal direction is parallel to the width direction of the lower panel 25. Note that, by arranging the beam members 31 parallel to the front-to-rear direction of the lower panel 25, it is possible to easily avoid interference between the beam members 31 and rivets, fixing screws, etc. provided on the floor assembly 10 or the frame.

[0032] FIG. 8 is a cross-sectional view of the floor assembly 10. As shown in FIG. 8, the side floor frame 22 has a cross section cut in the vertical direction that is formed into a substantially L-shape. The side floor frame 22 has a side surface portion 22b and a bottom surface portion 22c that is perpendicular to the side surface portion 22b. The side surface portion 22b faces the end portion in the width direction of the floor body 20. The bottom surface portion 22c is bent substantially vertically from the side surface portion 22b toward the center portion in the width direction of the floor body 20. The bottom surface portion 22c faces the bottom surface of the lower panel 25 of the floor body 20 in the vertical direction at a predetermined length from both ends in the width direction of the floor body 20. In other words, the bottom surface portion 22c faces only both ends in the width direction of the bottom surface of the floor body 20.

[0033] Here, when a load is applied to the floor main body 20, stress is concentrated on both ends in the width direction of the floor main body 20. At this time, the beam member 31 (hereinafter referred to as the first beam member 31A) that is arranged on the outermost side in the width direction among the multiple beam members 31 is arranged 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.

[0034] In contrast, the beam member 31 (hereinafter referred to as the second beam member 31B) that is arranged on the inner side in the width direction of the first beam member 31A among the multiple beam members 31 is arranged on the outer end portion 22a of the lower surface portion 22c of the side floor frame 22. In other words, the second beam member 31B overlaps with a part of the lower surface portion 22c of the side floor frame 22. And the beam member (hereinafter referred to as the third beam member 31C) that is arranged on the inner side in the width direction of the second beam member 31B among the multiple beam members 31 is not arranged on the lower surface portion 22c of the side floor frame 22. Therefore, when a load is applied to the floor main body 20, the location where stress is concentrated is the second beam member 31B among the multiple beam members 31.

[0035] Therefore, as shown in Figs. 6 to 8, the reinforcing member 34 is provided only on the second beam member 31B, which is the beam member 31 on which the most stress is concentrated. Therefore, the second beam member 31B is configured as a reinforcing beam member having a higher strength than the other beam members 31A and 31B. This ensures the strength of the floor assembly 10. Furthermore, by not providing the reinforcing members 34 on all of the beam members 31, the number of parts can be reduced, and an increase in the weight of the floor assembly 10 can be suppressed. Furthermore, the load imposed on the operation of attaching the reinforcing members 34 to the beam members 31 can be reduced.

[0036] The reinforcing member 34 has a substantially L-shaped cross section when cut in the vertical direction. 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 and lower, 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.

[0037] Furthermore, by arranging the reinforcing member 34 on the inside of the second beam member 31B, rather than on the outside of the second beam member 31B, it is possible to prevent the outer diameter of the second beam member 31B from becoming larger than the outer diameters of the other beam members 31A and 31C. In other words, when multiple beam members 31 are arranged side by side on the lower panel 25, it is possible to prevent the height of the second beam member 31B from becoming higher than the other beam members 31A and 31C.

[0038] Furthermore, when the reinforcing member 34 is cut in a vertical direction and formed into a substantially U-shaped cross section like the second beam member 31B, high machining 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-shape and dividing it into two, it is possible to reduce the machining accuracy of the reinforcing member 34 and to easily perform the fixing work of the reinforcing member 34. Furthermore, as a method for fixing the reinforcing member 34, various fixing methods such as fastening using fixing bolts and welding can be applied.

[0039] FIG. 9 shows the second beam member 31B, with FIG. 9A being a front view and FIG. 9B being a side view. 9A and 9B, the reinforcing members 34 are disposed only on both longitudinal ends of the second beam member 31B where stress is most concentrated in the second beam member 31B. This allows the weight of the second beam member 31B to be reduced compared to a case in which the reinforcing members 34 are disposed on the entire second beam member 31B, and facilitates the installation work.

[0040] Furthermore, by fixing the reinforcing member 34 to the end of the second beam member 31B, the second beam member 31B can be configured to be the same as the first beam member 31A and the third beam member 31C. As a result, the multiple beam members 31A, 31B, and 31C can be made common, improving the processing and assembly of the floor assembly 10.

[0041] The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention as defined in the claims.

[0042] Further, although an example in which the beam member 31 is made of a U-shaped steel material has been described, the present invention is not limited to this, and for example, the beam member 31 may be made of a square column-shaped steel material, an H-shaped steel material, or other various shapes. The reinforcing member 34 is appropriately set in accordance with the shape of the beam member 31.

[0043] In the above-described embodiment, the reinforcing member 34 is provided only on the second beam member 31B among the multiple beam members 31, but the present invention is not limited to this. For example, the reinforcing member 34 may also be provided on the first beam member 31A, which is disposed on the outermost side in the width direction of the floor main body 20 among the multiple beam members 31, or on the beam member 31 disposed in the center in the width direction.

[0044] Moreover, the beam members 31 on which the reinforcing member 34 is provided among the plurality of beam members 31 are set according to the position of the outer end 22a of the lower surface 22c of the side floor frame 22 that constitutes 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 22c of the frame among the plurality of beam members 31, or on the beam member 31 that is off the lower surface 22c and closest to the outer end 22a. Generally, as in the floor assembly 10 of the present example described above, the second beam member 31B that is second from the outside in the width direction among the plurality of beam members 31 is disposed on the outer end 22a of the lower surface 22c of the frame.

[0045] Furthermore, when the beam member 31 is arranged so that its longitudinal direction is parallel to the width direction of the lower panel 25, the reinforcing member 34 is arranged on the beam member 31 on the outer end portion of the underside of the frame (rear floor frame 23 or door sill 18) among the multiple beam members 31, or on the beam member 31 closest to the outer end portion 22a.

[0046] In the above-described embodiment, the reinforcing member 34 is provided as a separate member on the beam member 31, and the second beam member 31B is used as a reinforcing beam member, but the present invention is not limited to this, and the reinforcing member 34 and the beam member 31 may be integrally formed. In other words, any configuration may be used as long as the predetermined beam member is reinforced, for example, by thickening a portion of the predetermined beam member.

[0047] Furthermore, the present invention can also be applied to a multi-car elevator in which multiple cars move up and down within a single elevator shaft.

[0048] In this specification, the words "parallel" and "orthogonal" are used, but these do not mean only "parallel" and "orthogonal" in the strict sense, but may also mean a "substantially parallel" or "substantially orthogonal" state that includes "parallel" and "orthogonal" and is within a range in which the respective functions can be exerted. [Explanation of symbols]

[0049] Explanation of the Reference Numerals 1... elevator, 2... car, 3... main rope, 4... hoist, 9... cage, 10... floor assembly, ...11... front panel, 11a... entrance, 12... ceiling, 13... door section, 14... side panel, 16... frame, 18... door sill, 20... floor body, 21... upper panel, 22... side floor frame (frame), 22a... outer end, 22b... side section, 22c... underside, 23... rear floor frame (frame), 25... lower panel, 31... beam member, 31A... first beam member, 31B... second beam member (reinforcing beam member), 31C... third beam member, 32... reinforcing frame, 32a... slit, 34... reinforcing member

Claims

1. a floor assembly which serves as a floor surface of a car room which constitutes an elevator car; The floor assembly includes: The floor body, A frame surrounding the periphery of the floor body and supporting the floor body, The floor body is The lower panel and an upper panel facing the lower panel in the up-down direction; a beam member disposed between the lower panel and the upper panel; a reinforcing beam member disposed between the lower panel and the upper panel and having a strength greater than that of the beam member; A car equipped with:

2. The reinforcing beam member includes a reinforcing member, The reinforcing member is provided on a predetermined beam member among the plurality of beam members, thereby forming the reinforcing beam member.

2. The car according to claim 1.

3. the frame has a lower surface portion that faces a part of a lower surface of the lower panel in the up-down direction, The reinforcing member is provided on one of the beam members at a position corresponding to the position of the outer end of the lower surface portion.

3. The car according to claim 2.

4. The reinforcing member is provided on a beam member on an outer end of the lower surface portion, or on a beam member that is out of the lower surface portion and closest to a lower end of the lower surface portion, among the plurality of beam members. A car according to claim 3.

5. The frame has a side floor frame arranged parallel to the front-rear direction of the floor body, The beam members are arranged at intervals in a width direction perpendicular to the front-rear direction of the floor body, The beam member is disposed such that its longitudinal direction is parallel to the side floor frame, The reinforcing member is provided on a beam member on the outer end of the lower surface portion of the side floor frame, or on a beam member that is out of the lower surface portion and closest to the lower end of the lower surface portion. A car according to claim 3.

6. The reinforcing members are provided only at both ends of the beam member in the longitudinal direction.

3. The car according to claim 2.

7. The reinforcing member is fixed to the inside of the beam member.

3. The car according to claim 2.

8. The beam member has a cross-sectional shape cut in the vertical direction that is U-shaped, The reinforcing members are formed in an L-shape, and two of them are fixed to each end of the beam member. A car according to claim 7.

9. Equipped with a car that ascends and descends through the elevator, The elevator car includes a floor assembly that serves as a floor surface of a car room, The floor assembly includes: The floor body, A frame surrounding the periphery of the floor body and supporting the floor body, The floor body is The lower panel and an upper panel facing the lower panel in the up-down direction; a beam member disposed between the lower panel and the upper panel; a reinforcing beam member disposed between the lower panel and the upper panel and having a strength greater than that of the beam member; Equipped with elevator.

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