WO2023021653A1

WO2023021653A1 - Elevator car and elevator

Info

Publication number: WO2023021653A1
Application number: PCT/JP2021/030360
Authority: WO
Inventors: 智貴仮屋; 浩史川上; 好貴戸村
Original assignee: 株式会社日立製作所
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2023-02-23

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

car and elevator

The present invention relates to cars and elevators.

Conventionally, an elevator is equipped with a car, a counterweight, a rope that connects the car and the counterweight, and a hoist around which this rope is wound. In addition, the floor assembly that constitutes the floor of the car is fixed to the floor frame by fastening with a large number of rivets and fixing screws, so the fastening work for assembling the floor assembly is very complicated. rice field.

In addition, in order to reduce the fastening work, there is, for example, the one described in Patent Document 1. Patent Literature 1 describes a technique of bonding a floorboard to a pair of side beams with an adhesive and bonding a plurality of floor beams to the lower surface of the floorboard.

JP-A-11-236178

However, with the technology described in Patent Document 1, there is a possibility that the adhesion between the floor beams and the floorboards will come off as the adhesive deteriorates over time, causing the floor beams to come off the floorboards.

In consideration of the above problems, an object of the present invention is to provide a car and an elevator that can prevent peeling of panel members and reinforcing members even when the adhesive deteriorates over time.

In order to solve the above problems, the car is equipped with a floor assembly that serves as the floor surface of the car room that constitutes the elevator car. The floor assembly consists of a flat panel member, a reinforcing member that is adhesively fixed to the panel member using an adhesive, and a fixing that faces the panel member and is fastened and fixed to the reinforcing member by mechanical fastening using the fixing member. and a frame.

In addition, the elevator is equipped with a car that ascends and descends the hoistway. Moreover, the car having the structure mentioned above is applied to the car.

According to the car and elevator configured as described above, it is possible to prevent the panel member and the reinforcing member from peeling off even when the adhesive deteriorates over time.

1 is a schematic configuration diagram showing an elevator according to an embodiment; FIG. It is a perspective view which shows the floor assembly and frame of the car concerning an example of an embodiment. It is a perspective view which shows the floor assembly of the car concerning an example embodiment. 4 is a perspective view of the car floor assembly according to the embodiment, viewed from a direction different from that of FIG. 3. FIG. 1 is an exploded perspective view showing a floor body of a floor assembly of a car according to an embodiment; FIG. Fig. 10 is a perspective view showing a state in which a lower panel of the floor body of the floor assembly of the car according to the embodiment is removed; Fig. 2 is a perspective view showing a state in which a floor frame member of the floor assembly of the car according to the embodiment is removed; 8A is a plan view, and FIG. 8B is an enlarged view of a fastening portion of FIG. 8A, which schematically shows a method of assembling the floor assembly of the car according to the embodiment. FIG. 4 is a cross-sectional view showing fastening points of the floor assembly of the car according to the embodiment;

Embodiments of the car and elevator will be described below with reference to FIGS. 1 to 9. In addition, the same code|symbol is attached|subjected to the member which is common in each figure.

1. Embodiment 1-1. Configuration Example of Elevator 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 configuration diagram showing an elevator of this example.

The example shown in FIG. 1 shows a so-called 2:1 roping type elevator 1. The elevator is not limited to the 2:1 roping type elevator, and can be applied to a 1:1 roping type elevator.

As shown in FIG. 1, an elevator 1 includes a car 2 that ascends and descends in a hoistway, a main rope 3, a hoist 4, and a counterweight 5 that is suspended from the car 2 via the main rope 3. and have Hereinafter, the direction in which the car 2 and the counterweight 5 move up and down is defined as the vertical direction.

"Put people and luggage in car 2." A car-side pulley 2a is provided on the upper part of the car 2 in the vertical direction. A main rope 3 is wound around the car-side pulley 2a. The counterweight 5 is provided with a weight-side pulley 5a. A main rope 3 is wound around the weight side pulley 5a.

The hoist 4 is installed at the top of the hoistway. In addition, the hoist 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 crane manner.

One end of the main rope 3 is attached to the top of the hoistway. The main rope 3 extends from the top of the hoistway toward the car-side pulley 2a. The main rope 3 is wound from one end on the car-side pulley 2a, the sheave of the hoist 4, and the weight-side pulley 5a in this order.

Also, the other end of the main rope 3 extending upward from the weight-side pulley 5a of the hoistway is attached to the top of the hoistway in the same manner as the one end. By driving the hoist 4, the car 2 and the counterweight 5 move up and down in the hoistway.

1-2. Configuration Example of Car The car 2 includes a floor assembly 10 that serves as a floor surface of the car room, a side plate 11, a ceiling 12, a door portion 13, and a frame 16 (see FIG. 2). . The floor assembly 10 and the ceiling 12 are arranged facing each other in the vertical direction. The side plates 11 are erected around the floor assembly 10 and the ceiling 12 . Of the side plates 11 surrounding the floor assembly 10, the front side plate arranged in front of the car 2 is provided with an entrance. A door part 13 is installed at the doorway so that it can be opened and closed. The floor assembly 10, the side plates 11, the ceiling 12 and the door portion 13 constitute a car room in which people and luggage are placed in the car 2. As shown in FIG.

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

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

FIG. 5 is an exploded perspective view showing the floor body 20. As shown in FIG. 6 is a perspective view showing a state in which only the lower panel 21 is removed from the floor body 20. FIG.
The floor body 20 includes a lower panel 21 and an upper panel 22 representing panel members, and a plurality of reinforcing

members

25 and 26 . The lower panel 21 and the upper panel 22 are formed flat. The upper panel 22 vertically faces the lower panel 21 . Reinforcing

members

25 and 26 are arranged between the lower panel 21 and the upper panel 22 .

The reinforcing

members

25 and 26 are formed to have a substantially U-shaped cross section when cut in the vertical direction. The reinforcing member 25 extends along the front-rear direction of the floor body 20 . The plurality of reinforcing members 25 are arranged along the width direction, which is the left-right direction of the floor body 20 . Further, as shown in FIG. 6 , the reinforcing member 26 is arranged at the rear end portion of the floor body 20 in the front-rear direction.

The reinforcing member 26 is formed with slits for positioning the plurality of reinforcing members 25 . Thereby, horizontal movement of the plurality of reinforcing members 25 is restricted by the reinforcing member 26 . A fixing nut 26a (see FIG. 9) is provided at a portion of the reinforcing member 26 where a fixing bolt 35, which will be described later, is fastened and fixed.

Although an example in which a plurality of reinforcing members 25 are arranged along the width direction of the floor body 20 has been described, the present invention is not limited to this, and a plurality of reinforcing members 25 are arranged along the front-rear direction of the floor body 20. They can be placed side by side.

The reinforcing

members

25 and 26 are interposed between the lower panel 21 and the upper panel 22. The reinforcing

members

25, 26 are adhesively fixed to the lower panel 21 and the upper panel 22 using an adhesive 41 (see FIG. 8A). Therefore, vertical movement of the reinforcing

members

25 and 26 is restricted by the lower panel 21 and the upper panel 22 .

As shown in FIG. 6, insertion holes 21a are formed at the four corners of the lower panel 21. As shown in FIG. The opening diameter of the insertion hole 21a is formed to be larger than the outer diameter of the threaded portion of the fixing bolt 35, which will be described later. A threaded portion of the fixing bolt 35 is inserted through the insertion hole 21a.

As shown in FIG. 4 , the floor frame members 27 are arranged so as to surround the four sides of the floor body 20 . The floor frame member 27 is fastened and fixed to the floor body 20 via the fixing bolts 35 . 7 is a perspective view showing a state where only the floor frame member 27 is removed from the floor assembly 10. FIG.
As shown in FIG. 7, the floor frame member 27 has a pair of fixed

frames

28, 28 and a pair of connection frames 29, 29. As shown in FIG. The fixed frames 28 , 28 are arranged on both sides of the floor assembly 10 in the width direction, which is the left-right direction. The fixed frame 28 extends along the front-rear direction of the floor assembly 10 . The fixed frame 28 faces the outer edge of the lower panel 21 of the floor body 20 and faces the side face of the floor body 20 . The fixed frame 28 is fastened and fixed to the floor body 20 via fixing bolts 35 .

The connection frames 29 are arranged at both ends of the fixed frame 28 in the front-rear direction. A connection frame 29 connects the pair of fixed

frames

28 , 28 . A pair of connection frames 29 , 29 are arranged at both ends of the floor body 20 in the front-rear direction.

2. Assembly Work Example of Floor Assembly Next, an assembly work example of the floor assembly 10 having the above-described configuration will be described with reference to FIGS. 6 to 9. FIG.
8A and 8B schematically show a method of assembling a floor assembly, where FIG. 8A is a plan view and FIG. 8B is an enlarged view of fastening points. FIG. 9 is a cross-sectional view showing an enlarged fastening portion.

First, as shown in FIG. 8A, the adhesive 41 is applied to the portions of the lower panel 21 where the reinforcing

members

25 and 26 are arranged. The reinforcing

members

25 , 26 are then crimped to the bottom panel 21 . Since the operation of bonding the upper panel 22 and the reinforcing

members

25 and 26 is the same, the explanation thereof will be omitted. Thereby, the floor body 20 composed of the lower panel 21, the upper panel 22, and the reinforcing

members

25 and 26 is assembled.

By bonding and fixing the reinforcing

members

25 and 26, the lower panel 21 and the upper panel 22 using the adhesive 41, the two parts are fixed on the surface. Thereby, the rigidity of the floor body 20 can be increased as compared with the case where the floor body 20 is fixed at points by mechanical fastening using rivets or fixing screws.

Next, as shown in FIG. 7, the floor frame member 27 is attached from below the floor body 20 in the vertical direction. Then, as shown in FIGS. 8A to 9 , the fixed frame 28 is fastened and fixed to the floor body 20 via the fixing bolts 35 . As shown in FIG. 9, the fixing bolt 35 passes through the lower panel 21 and is fastened to a fixing nut 26a provided on the reinforcing member 26. As shown in FIG. As a result, the fixing frame 28 and the reinforcing member 26 are fastened and fixed by the fixing bolts 35 .

The lower panel 21 is sandwiched between a fixed frame 28 and a reinforcing member 26. Therefore, even if the adhesion between the lower panel 21 and the reinforcing member 26 is broken due to deterioration of the adhesive 41 over time, the lower panel 21 can be held by fastening the fixing frame 28 and the fixing bolt 35 . Furthermore, by using mechanical fastening using the fixing bolts 35 together, the rigidity of the floor assembly 10 can be maintained even when the adhesive 41 is peeled off.

In addition, only the four corners of the lower panel 21 are mechanically fastened by the fixing bolts 35 . As a result, it is possible to reduce the burden of mechanical fastening work, and to simplify the assembly work of the floor assembly 10 .

In this example, an example using the fixing bolt 35 as a fixing member for mechanical fastening has been described, but the present invention is not limited to this. A rivet may 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 portion through which the rivet is inserted.

As described above, since the reinforcing

members

25 and 26 and the lower panel 21 are adhesively fixed by the adhesive 41, there is a possibility that the lower panel 21 may be displaced from the reinforcing

members

25 and 26 until the adhesive 41 is fixed. be. Therefore, the holes in the lower panel 21 into which the fixing bolts 35 are inserted may be misaligned, and the fixing bolts 35 may not be able to be fastened and fixed. Further, it is necessary to provide an assembly jig for preventing the lower panel 21 from being displaced until the adhesive 41 is fixed.

On the other hand, in the car 2 of this example, the opening diameter of the insertion hole 21a in the lower panel 21 is formed to be 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 is displaced before the adhesive 41 is fixed, the fixing bolt 35 can be inserted into the insertion hole 21a. As a result, mechanical fastening can be performed by the fixing bolts 35 without using an assembly jig for preventing the positional displacement of the lower panel 21, and simplification of the assembly work of the floor assembly 10 can be achieved.

In addition, in this example, an example in which the fixing nut 26a to which the fixing bolt 35 is fastened is provided on the reinforcing member 26 has been described, but the present invention is not limited to this, and the fixing nut may be provided on the upper panel 22 side. By providing the fixing nut 26a on the reinforcing member 26, the fixing nut 26a and the threaded portion of the fixing bolt 35 can be prevented from protruding from the floor surface of the floor assembly 10, and the appearance of the floor assembly 10 can be improved. can be done.

Furthermore, in this example, the fixing frame 28 faces the lower panel 21, and the fixing bolt 35 is inserted from below in the vertical direction, but the present invention is not limited to this. For example, in the case of a floor assembly that does not have the lower panel 21, the fixing frame 28 is placed on the upper panel 22, the fixing bolt 35 is inserted from above in the vertical direction, and the reinforcing member 26 and the fixing frame 28 are fastened and fixed. may In this case, it is possible to prevent the reinforcing member 26 from coming off from the upper panel 22 even if the adhesive 41 is peeled off.

However, as in the floor assembly 10 of this example, by providing the lower panel 21 arranged below the reinforcing

members

25 and 26 in the vertical direction, the bonding between the reinforcing

members

25 and 26 and the upper panel 22 was broken. In some cases, the reinforcing

members

25 , 26 can be retained by the lower panel 21 . Furthermore, by arranging the fixing frame 28 below the lower panel 21 and inserting the fixing bolt 35 from below in the vertical direction, the head of the fixing bolt 35 is prevented from protruding from the floor surface of the floor assembly 10. be able to. As a result, the floor surface of the floor assembly 10 can be made smooth.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications are possible without departing from the gist of the invention described in the claims.

In addition, although an example in which the reinforcing

members

25 and 26 are made of U-shaped steel has been described, the reinforcing members 24 are not limited to this. It may be configured with a shape.

Furthermore, as an elevator, it can also be applied to a multi-car elevator in which multiple cars move up and down in one hoistway.

In this specification, words such as "parallel" and "perpendicular" are used, but these do not strictly mean only "parallel" and "perpendicular", but include "parallel" and "perpendicular". Furthermore, it may be in a "substantially parallel" or "substantially orthogonal" state within the range where the function can be exhibited.

1... elevator, 2... car, 3... main rope, 4... hoist, 10... floor assembly, 10... floor assembly, 11... side plate, 13... door section, 16... frame body, 20... floor body 21... Lower panel (panel member) 21a... Insertion hole 22... Upper panel (panel member) 23... Fixing

bracket

25, 26... Reinforcing member 26a... Fixing nut 27... Floor frame member 28... Fixing Frame, 35... Fixing bolt (fixing member), 41... Adhesive

Claims

Equipped with a floor assembly that serves as the floor surface of the cage that constitutes the elevator car,
The floor assembly includes:
a flat panel member;
a reinforcing member adhesively fixed to the panel member using an adhesive;
a fixing frame that faces the panel member and is fastened and fixed to the reinforcing member by mechanical fastening using a fixing member;
Carriage with
An insertion hole through which the fixing member is inserted is formed in the panel member,
The car according to claim 1, wherein an opening diameter of the insertion hole is formed to be larger than an outer diameter of a portion through which the fixing member is inserted.
The panel member is
a top panel;
a lower panel vertically opposed to the upper panel;
the reinforcing member is disposed between the upper panel and the lower panel and is adhesively fixed to the upper panel and the lower panel using an adhesive;
The car according to claim 1, wherein the fixed frame is arranged below the lower panel in the vertical direction.
The car according to claim 3, wherein the fixing member is inserted into the fixing frame from below in the vertical direction.
The fixing member is a fixing bolt,
The car according to claim 1, wherein the reinforcing member is provided with a fixing nut to be fastened with the fixing bolt.
The car according to claim 1, wherein the fixed frame is fastened and fixed at four corners of the panel member.
Equipped with a car that ascends and descends the hoistway,
The car comprises a floor assembly that serves as a floor of the car room,
The floor assembly includes:
a flat panel member;
a reinforcing member adhesively fixed to the panel member using an adhesive;
a fixing frame that faces the panel member and is fastened and fixed to the reinforcing member by mechanical fastening using a fixing member;
Elevator with.