Cars and elevators

Abstract

This elevator car comprises a floor assembly. The floor assembly is equipped with: a panel member having a tabular shape; a reinforcing member that is adhesively fixed to the panel member using an adhesive; and a fixation frame that faces the panel member and is fastened to the reinforcing member by mechanical fastening using a fixing member.

Description

Technical Field

[0006]

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

Background Art

[0002] Conventionally, an elevator includes an elevator car, a counterweight, a rope connecting the elevator car and the counterweight, and a hoist for winding the rope. Further, the floor assembly constituting the floor of the elevator car has a floor and a floor frame fixed by fastening with a large number of rivets or fixing screws, so that the fastening work for assembling the floor assembly has been very complicated.

[0003] Also, in order to reduce the fastening work, for example, there is one as described in Patent Document 1. Patent Document 1 describes a technique of adhering a floor board to a pair of side beams with an adhesive and adhering a plurality of floor beams to the lower surface of the floor board.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0008] Furthermore, the elevator is equipped with a car that moves up and down the hoistway. The car is of the configuration described above. [Effects of the Invention]

[0009] With the above configuration of the elevator car and elevator, it is possible to prevent the panel members and reinforcing members from peeling off even if the adhesive deteriorates over time. [Brief explanation of the drawing]

[0010] [Figure 1] This is a schematic diagram showing an elevator according to an embodiment. [Figure 2] This is a perspective view showing the floor assembly and frame of a ride car according to an embodiment. [Figure 3] This is a perspective view showing the floor assembly of a train car according to an example embodiment. [Figure 4] This figure shows the floor assembly of a train car according to an embodiment, and is a perspective view taken from a different direction than Figure 3. [Figure 5] This is an exploded perspective view showing the floor body of the elevator car floor assembly according to an embodiment. [Figure 6] This is a perspective view showing the lower panel of the floor body of the elevator car floor assembly according to an embodiment example. [Figure 7] This is a perspective view showing the floor frame member of the elevator car floor assembly according to an embodiment example in which the floor frame member has been removed. [Figure 8] Figure 8A schematically shows the assembly method of the elevator car floor assembly according to an embodiment, with Figure 8A being a plan view and Figure 8B being an enlarged view of the fastening points in Figure 8A. [Figure 9] It is a cross-sectional view showing fastening points of a car floor assembly according to an embodiment example.

Mode for Carrying Out the Invention

[0011] Hereinafter, embodiments of a car and an elevator will be described with reference to FIGS. 1 to 9. In each figure, common members are denoted by the same reference numerals.

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

[0013] In the example shown in FIG. 1, an elevator 1 of a so-called 2:1 roping system is shown. Note that the elevator is not limited to an elevator of the 2:1 roping system, and can also be applied to an elevator of the 1:1 roping system.

[0014] As shown in FIG. 1, the elevator 1 has a car 2 that moves up and down in a hoistway, a main rope 3, a hoisting machine 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 move up and down is defined as the vertical direction.

[0015] People and loads are placed on the car 2. A car-side pulley 2a is provided at the upper part in the vertical direction of the car 2. The main rope 3 is wound around the car-side pulley 2a. A weight-side pulley 5a is provided on the counterweight 5. The main rope 3 is wound around the weight-side pulley 5a.

[0016] The hoisting machine 4 is installed at the uppermost part of the hoistway. The hoisting machine 4 also has a sheave around which the main rope 3 is wound. Then, the hoisting machine 4 hoists and lowers the car 2 and the counterweight 5 in a suspended manner via the main rope 3.

[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. Then, the main rope 3 is wound around the car-side pulley 2a, the drum of the hoisting machine 4, and the weight-side pulley 5a in this order from one end.

[0018] Also, the other end of the main rope 3 that extends upward from the weight-side pulley 5a in the hoistway is attached to the upper part of the hoistway in the same manner as the one end. By driving the hoisting machine 4, the car 2 and the counterweight 5 move up and down in the hoistway.

[0019] 1-2. Configuration Example of the Car The car 2 includes a floor assembly 10 that serves as the floor surface of the car compartment, side plates 11, a ceiling 12, a door unit 13, and a frame body 16 (see FIG. 2). The floor assembly 10 and the ceiling 12 are arranged to face each other in the vertical direction. The side plates 11 are erected around the floor assembly 10 and the ceiling 12. Among the side plates 11 that surround the periphery of the floor assembly 10, an entrance is provided in the front side plate disposed in the front of the car 2. A door unit 13 is installed at the entrance so as to be openable and closable. And the floor assembly 10, the side plates 11, the ceiling 12, and the door unit 13 constitute a car compartment in the car 2 for loading people and luggage.

[0020] FIG. 2 is a perspective view showing the floor assembly 10 and the frame body 16. As shown in FIG. 2, the floor assembly 10 is supported by the frame body 16. The frame body 16 has two vertical frames extending in the vertical direction and a horizontal frame extending in the left-right direction which is the width direction. Also, a car-side pulley 2a is attached to the lower part in the vertical direction of the frame body 16.

[0021] 1-3. Configuration Example of the Floor Assembly Next, the configuration of the floor assembly 10 will be described with reference to FIGS. 3 to 7. FIGS. 3 and 4 are perspective views showing the floor assembly 10. As shown in Figures 3 and 4, the floor assembly 10 comprises a floor body 20, a fixing bracket 23, and a floor frame member 27. The floor body 20 is formed in a substantially rectangular shape. The floor body 20 is supported by the frame 16 (see Figure 2). The fixing bracket 23 is fixed to the front end of the floor body 20 in the front-rear direction, i.e., the front part. A door sill (not shown) that movably supports the door section 13 is attached to the fixing bracket 23.

[0022] Figure 5 is an exploded perspective view showing the floor unit 20. Figure 6 is a perspective view showing the floor unit 20 with only the lower panel 21 removed. The floor body 20 comprises a lower panel 21 and an upper panel 22, which represent panel members, and a plurality of reinforcing members 25 and 26. The lower panel 21 and the upper panel 22 are formed in a flat plate shape. The upper panel 22 faces the lower panel 21 in the vertical direction. The reinforcing members 25 and 26 are positioned between the lower panel 21 and the upper panel 22.

[0023] The reinforcing members 25 and 26 have a roughly U-shaped cross-section when cut vertically. The reinforcing member 25 extends along the front-to-back direction of the floor body 20. Multiple reinforcing members 25 are arranged along the width direction, which is the left-to-right direction of the floor body 20. As shown in Figure 6, the reinforcing member 26 is positioned at the rear end of the floor body 20 in the front-to-back direction.

[0024] The reinforcing member 26 has slits formed therein for positioning multiple reinforcing members 25. This restricts the horizontal movement of the multiple reinforcing members 25. In addition, fixing nuts 26a (see Figure 9) are provided at the locations on the reinforcing member 26 where the fixing bolts 35, described later, are fastened and secured.

[0025] Although an example has been described in which multiple reinforcing members 25 are arranged in a line along the width direction of the floor body 20, the method is not limited to this, and multiple reinforcing members 25 may also be arranged in a line along the front-to-back direction of the floor body 20.

[0026] The reinforcing members 25 and 26 are interposed between the lower panel 21 and the upper panel 22. The reinforcing members 25 and 26 are bonded and fixed to the lower panel 21 and the upper panel 22 using adhesive 41 (see Figure 8A). Therefore, the vertical movement of the reinforcing members 25 and 26 is restricted by the lower panel 21 and the upper panel 22.

[0027] As shown in Figure 6, through holes 21a are formed in the four corners of the lower panel 21. The opening diameter of the through holes 21a is larger than the outer diameter of the threaded portion of the fixing bolt 35, which will be described later. The threaded portion of the fixing bolt 35 is inserted through the through holes 21a.

[0028] As shown in Figure 4, the floor frame member 27 is positioned to surround all four sides of the floor body 20. The floor frame member 27 is then fastened and fixed to the floor body 20 via fixing bolts 35. Figure 7 is a perspective view showing the floor frame member 27 removed from the floor assembly 10. As shown in Figure 7, the floor frame member 27 has a pair of fixed frames 28, 28 and a pair of connecting frames 29, 29. The fixed frames 28, 28 are positioned on both sides of the floor assembly 10 in the width direction, which is the left-right direction. These fixed frames 28 extend along the front-rear direction of the floor assembly 10. The fixed frames 28 face the outer edge of the lower panel 21 of the floor body 20 and also face the side surface of the floor body 20. The fixed frames 28 are fastened and fixed to the floor body 20 via fixing bolts 35.

[0029] The connecting frames 29 are positioned at both ends of the fixed frame 28 in the front-to-back direction. The connecting frames 29 connect the pair of fixed frames 28, 28. The pair of connecting frames 29, 29 are positioned at both ends of the floor body 20 in the front-to-back direction.

[0030] 2. Example of floor assembly work Next, an example of the assembly process for the floor assembly 10 having the above-described configuration will be explained with reference to Figures 6 to 9. Figures 8A and 8B schematically illustrate the assembly method of the floor assembly; Figure 8A is a plan view, and Figure 8B is a magnified view of the fastening points. Figure 9 is a cross-sectional view magnified of the fastening points.

[0031] First, as shown in Figure 8A, adhesive 41 is applied to the areas on the lower panel 21 where the reinforcing members 25 and 26 will be placed. Next, the reinforcing members 25 and 26 are pressed onto the lower panel 21. The bonding process between the upper panel 22 and the reinforcing members 25 and 26 is similar, so the explanation for that process is omitted. This completes the assembly of the floor body 20, which consists of the lower panel 21, the upper panel 22, and the reinforcing members 25 and 26.

[0032] In this way, the reinforcing members 25 and 26, the lower panel 21, and the upper panel 22 are fixed together using adhesive 41, thereby fixing the two parts together over a surface area. This increases the rigidity of the floor body 20 compared to fixing them at points using mechanical fastening with rivets or screws.

[0033] Next, as shown in Figure 7, the floor frame member 27 is attached to the floor body 20 from below in the vertical direction. Then, as shown in Figures 8A to 9, the fixing frame 28 is fastened and secured to the floor body 20 via fixing bolts 35. As shown in Figure 9, the fixing bolts 35 pass through the lower panel 21 and are fastened to fixing nuts 26a provided on the reinforcing member 26. In this way, the fixing frame 28 and the reinforcing member 26 are fastened and secured by the fixing bolts 35.

[0034] The lower panel 21 is held in place by the fixing frame 28 and the reinforcing member 26. Therefore, even if the adhesive between the lower panel 21 and the reinforcing member 26 peels off due to deterioration of the adhesive 41 over time, the lower panel 21 can still be held in place by fastening the fixing frame 28 and the fixing bolts 35. Furthermore, by using mechanical fastening with the fixing bolts 35 in combination, the rigidity of the floor assembly 10 can be maintained even if the adhesive 41 peels off.

[0035] Furthermore, mechanical fastening using fixing bolts 35 is only required at the four corners of the lower panel 21. This reduces the workload associated with mechanical fastening and simplifies the assembly of the floor assembly 10.

[0036] In this example, a fixing bolt 35 was used as the fixing member for mechanical fastening, but this is not the only option. Rivets may also be used as the fixing member for mechanical fastening. The opening diameter of the insertion hole 21a provided in the lower panel 21 is formed to be larger than the outer diameter of the area through which the rivet is inserted.

[0037] As described above, the reinforcing members 25 and 26 and the lower panel 21 are bonded and fixed together with adhesive 41. Therefore, there is a risk that the lower panel 21 may shift relative to the reinforcing members 25 and 26 before the adhesive 41 has set. As a result, the holes in the lower panel 21 into which the fixing bolts 35 are inserted may shift, making it impossible to fasten and fix the panel with the fixing bolts 35. Therefore, it was necessary to provide an assembly jig to prevent the lower panel 21 from shifting position until the adhesive 41 had set.

[0038] In contrast, in the elevator car 2 of this example, the opening diameter of the insertion hole 21a in the lower panel 21 is made sufficiently larger than the outer diameter of the threaded portion of the fixing bolt 35. As a result, even if the position of the lower panel 21 shifts before the adhesive 41 sets, the fixing bolt 35 can still be inserted into the insertion hole 21a. Consequently, mechanical fastening can be performed using the fixing bolt 35 without the need for an assembly jig to prevent the lower panel 21 from shifting, thereby simplifying the assembly work of the floor assembly 10.

[0039] Furthermore, although this example describes a case in which a fixing nut 26a is provided on the reinforcing member 26 to which a fixing bolt 35 is fastened, it is not limited to this, and the fixing nut may also be provided on the upper panel 22 side. By providing the fixing nut 26a on the reinforcing member 26, it is possible to prevent the threaded portion of the fixing nut 26a or the fixing bolt 35 from protruding from the floor surface of the floor assembly 10, thereby improving the aesthetic appearance of the floor assembly 10.

[0040] Furthermore, although this example describes a configuration in which the fixing frame 28 is positioned opposite the lower panel 21 and the fixing bolts 35 are inserted from below in the vertical direction, the method is not limited to this. For example, in the case of a floor assembly without a lower panel 21, the fixing frame 28 may be placed on the upper panel 22, and the fixing bolts 35 may be inserted from above in the vertical direction to fasten and fix the reinforcing member 26 and the fixing frame 28. In this case, even if the adhesive 41 peels off, it is possible to prevent the reinforcing member 26 from falling off the upper panel 22.

[0041] However, as in the floor assembly 10 of this example, by providing a lower panel 21 positioned below the reinforcing members 25 and 26 in the vertical direction, the reinforcing members 25 and 26 can be held by the lower panel 21 if the adhesive between the reinforcing members 25 and 26 and the upper panel 22 peels off. Furthermore, by positioning the fixing frame 28 below the lower panel 21 and inserting the fixing bolts 35 from below in the vertical direction, it is possible to prevent the heads of the fixing bolts 35 from protruding from the floor surface of the floor assembly 10. As a result, the floor surface of the floor assembly 10 can be made smooth.

[0042] It should be noted that the invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention as described in the claims.

[0043] Furthermore, although an example in which the reinforcing members 25 and 26 are made of U-shaped steel has been described, the method is not limited to this, and for example, the reinforcing member 24 may be made of a rectangular prism-shaped steel, an H-beam, or any other shape.

[0044] Furthermore, this technology can also be applied to multi-car elevators, where multiple elevator cars move up and down within a single hoistway.

[0045] In this specification, although terms such as "parallel" and "orthogonal" are used, these do not mean only strictly "parallel" and "orthogonal," but may also refer to states that are "approximately parallel" or "approximately orthogonal," which include "parallel" and "orthogonal" and are within a range in which they can perform their functions. [Explanation of Symbols]

[0046] 1…Elevator, 2…Car, 3…Main rope, 4…Hoisting machine, 10…Floor assembly, 10…Floor assembly, 11…Side panel, 13…Door section, 16…Frame, 20…Floor body, 21…Lower panel (panel member), 21a…Through hole, 22…Upper panel (panel member), 23…Fixing bracket, 25, 26…Reinforcement members, 26a…Fixing nut, 27…Floor frame member, 28…Fixing frame, 35…Fixing bolt (fixing member), 41…Adhesive

Claims

1. It includes a floor assembly that forms the floor surface of the elevator car, The aforementioned floor assembly body, A flat panel member, A reinforcing member is bonded and fixed to the panel member using an adhesive, A fixing frame facing the panel member and fastened to the reinforcing member by mechanical fastening using a fixing member, Equipped with, The aforementioned fixing member is a fixing bolt, The reinforcing member is provided with a fixing nut that fastens with the fixing bolt. The panel member has an insertion hole through which the threaded portion of the fixing bolt is inserted. The aforementioned fixing frame is fastened and secured at the four corners of the panel member. The opening diameter of the through-hole is formed to be larger than the outer diameter of the threaded portion of the fixing bolt, so that even if the position of the panel member shifts before the adhesive sets, the threaded portion of the fixing bolt can still be inserted into the through-hole. The panel member is sandwiched between the reinforcing member and the fixing frame. A train car.

2. The aforementioned panel member is The top panel and It has an upper panel and a lower panel that is opposite to it in the vertical direction, The reinforcing member is positioned between the upper panel and the lower panel, and the upper panel and are bonded and fixed to the lower panel using adhesive. The aforementioned fixing frame is positioned below the lower panel in the vertical direction. The elevator car according to claim 1.

3. The fixing member is inserted into the fixing frame from below in the vertical direction. The elevator car according to claim 2.

4. Equipped with a car that ascends and descends the elevator shaft, The aforementioned elevator car includes a floor assembly that forms the floor surface of the elevator car, The aforementioned floor assembly body, A flat panel member, A reinforcing member is bonded and fixed to the panel member using an adhesive, A fixing frame facing the panel member and fastened to the reinforcing member by mechanical fastening using a fixing member, Equipped with, The aforementioned fixing member is a fixing bolt, The reinforcing member is provided with a fixing nut that fastens with the fixing bolt. The panel member has an insertion hole through which the threaded portion of the fixing bolt is inserted. The aforementioned fixing frame is fastened and secured at the four corners of the panel member. The opening diameter of the through-hole is formed to be larger than the outer diameter of the threaded portion of the fixing bolt, so that even if the position of the panel member shifts before the adhesive sets, the threaded portion of the fixing bolt can still be inserted into the through-hole. The panel member is sandwiched between the reinforcing member and the fixing frame. Elevator.

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