CN113636431A

CN113636431A - Elevator car of elevator for carrying people and goods

Info

Publication number: CN113636431A
Application number: CN202110460897.6A
Authority: CN
Inventors: 川端亮平; 铃木隆裕; 岛田胜博
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2020-05-11
Filing date: 2021-04-27
Publication date: 2021-11-12
Anticipated expiration: 2041-04-27
Also published as: JP2021178689A; JP7450453B2; CN113636431B

Abstract

Provided is an elevator car for a passenger or freight elevator, which can suppress the weight increase and the cost increase of the elevator car and can suppress the damage of a vibration-proof rubber by utilizing a structure with high mechanical strength existing in the prior art. An elevator car of an elevator for carrying people or goods is provided with: a floor on which a cargo is placed; a underfloor base that supports the floor via a plurality of vibration-proof rubbers; a plurality of jack bolts provided on the underfloor base and supporting the floor when the vibration-proof rubber is replaced; and a bracket that hangs down from a lower surface of the floor and restricts deformation of the vibration-proof rubber in a front-rear direction by coming into contact with the jack bolt.

Description

Elevator car of elevator for carrying people and goods

Technical Field

The present invention relates to an elevator car of a passenger-carrying freight elevator in which vibration-proof rubber is disposed under a floor.

Background

As an elevator car of an elevator in which vibration-proof rubber is disposed under a floor, an elevator car described in patent document 1 is known.

For example, in the specification of patent document 1, as a structure of "a car of an elevator that attenuates vibration of an elevator car and is comfortable to ride", there are the following descriptions: "laminated anti-vibration rubbers 13 are provided at both ends of a pair of lower beams 17 provided at the lower end of the car frame 6A in the lateral direction to support the load of the elevator car and attenuate vibration transmitted to the elevator car. The laminated vibration-proof rubber 13 has about 10 layers of vibration-proof rubber and an intermediate plate laminated inside the end plate. The stopper 14 is fixed to the lower beam 17, and the stopper rubber 14a is fixed to the side surface of the stopper 14. The stopper 14 is provided vertically to the lower surface of the bottom of the elevator car at a predetermined interval from the stopper rubber 14 a. "

Further, patent document 1 describes, in paragraph 0032, the following: at each of the four corners of the lower surface of the car floor 6B1 of the car room 6B, a prismatic stopper 14B is fixed at an interval of 3mm from each stopper rubber 14 a. Further, in paragraph 0038, the following are described: "in fig. 1 and 2 showing the car of the elevator of the present invention, since the stopper 14B prevents excessive displacement of the car chamber 6B, the displacement of the car chamber can be suppressed within a certain range, and the laminated vibration-proof rubber 13 is not damaged. "

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 8-104482

As described above, in the elevator of patent document 1, the prismatic stoppers are added to the four corners of the lower surface of the car floor, whereby excessive displacement of the car room can be prevented and damage to the vibration-proof rubber can be prevented. In order to apply the technique of patent document 1 to a passenger or cargo elevator for transporting heavy objects such as automobiles with such a configuration, it is necessary to add a stopper having high mechanical strength in order to limit the shear deformation of the vibration-proof rubber accompanying the loading and unloading of automobiles and the like within a predetermined range.

However, the addition of such a stopper having high mechanical strength not only increases the weight of the elevator car, but also increases the manufacturing cost of the elevator car.

Disclosure of Invention

Problems to be solved by the invention

In view of the above problems, an object of the present invention is to provide an elevator car for a man-riding or freight-carrying elevator, which can suppress an increase in weight and an increase in cost of the elevator car and can suppress damage to a vibration-proof rubber by using a conventional structure having high mechanical strength.

Means for solving the problems

In order to solve the above problems, an elevator car of a man-carrying or freight-carrying elevator according to the present invention includes: a floor on which a cargo is placed; a underfloor base that supports the floor via a plurality of vibration-proof rubbers; a plurality of jack bolts provided on the underfloor base and supporting the floor when the vibration-proof rubber is replaced; and a bracket that hangs down from a lower surface of the floor and restricts deformation of the vibration-proof rubber in a front-rear direction by coming into contact with the jack bolt.

Effects of the invention

According to the elevator car of the passenger or freight elevator of the present invention, by utilizing the structure having high mechanical strength which has been conventionally used, it is possible to suppress an increase in weight and cost of the elevator car and to suppress damage to the vibration-proof rubber.

Drawings

Fig. 1 is a schematic diagram of a man-carrying cargo elevator in carrying in and out.

Fig. 2 is a side view showing the vibration-proof rubber of the elevator car of the embodiment in a normal state and in a state where shear deflection occurs.

FIG. 3 is a top and side view of a bracket of an embodiment.

Fig. 4 is a top view of an elevator car showing a structure between a floor and an underfloor base of an embodiment.

Fig. 5 is a side view showing a state of the jack bolt at the time of replacement of the vibration-proof rubber.

Description of reference numerals:

1 Elevator cage

11 floor

12 under-floor base

13 vibration-proof rubber

14 jack bolt

15 bracket

15a buffer

15b long hole

15h horizontal part

15v vertical part

2 guide device

3 guide rail

4 Motor vehicle

5 elevator lobbies.

Detailed Description

Hereinafter, an elevator car of a man-riding and freight-carrying elevator according to an embodiment of the present invention will be described with reference to the drawings.

Fig. 1 is a schematic view of the elevator for loading/unloading a passenger/cargo according to the present embodiment, in which 1 is an elevator car that ascends and descends in an elevator shaft, 2 is a guide device provided above and below the elevator car 1, 3 is guide rails provided on the left and right sides of the elevator shaft, 4 is an automobile that is an example of heavy goods transported by the elevator car 1, and 5 is an elevator hall. In the elevator car 1, vibration damping rubber 13 that suppresses vibration is disposed between the floor 11 and the underfloor base 12. In the following, each direction of the front, rear, upper, and lower sides is defined as illustrated in the drawings.

When the motor vehicle 4 is carried into the elevator car 1 as shown in fig. 1, the motor vehicle 4 that is traveling across the elevator hall 5 and the elevator car 1 presses the floor 11 rearward, and therefore, a shearing force in the front-rear direction is generated in the vibration isolating rubber 13. On the other hand, when the motor vehicle 4 is carried out from the elevator car 1, the motor vehicle 4 running across the elevator car 1 and the elevator hall 5 pulls the floor 11 forward, and therefore a shearing force is generated in the vibration isolating rubber 13 in a direction opposite to the direction of carrying. Therefore, in the present embodiment, the jack bolt 14, which has a high mechanical strength and is conventionally provided, prevents excessive displacement of the vibration isolating rubber 13 when the automobile 4 is carried in and out.

Fig. 2 is a side view showing the vibration-proof rubber 13 in (a) a normal state and (b) a shear deflection, and is a diagram showing in detail a displacement regulating structure of the vibration-proof rubber 13 by using the jack bolt 14.

As shown in the drawing, in the elevator car 1 of the present embodiment, between the floor 11 and the underfloor base 12, a vibration-proof rubber 13 for connecting the floor 11 and the underfloor base 12, a jack bolt 14 provided on the upper surface of the underfloor base 12, and a bracket 15 provided on the lower surface of the floor 11 are disposed. More specifically, the vibration-proof rubber 13, the bracket 15, and the jack bolt 14 are arranged in this order from the front, and the jack bolt 14, the bracket 15, and the vibration-proof rubber 13 are arranged in this order from the front.

Fig. 3 is a diagram illustrating the structure of the bracket 15 in detail, wherein fig. 3 (a) is a plan view and fig. 3 (b) is a side view. As shown in the drawing, the bracket 15 has a substantially L-shaped cross-sectional shape including a vertical portion 15v and a horizontal portion 15h, and a cushion 15a is provided on the front end side of the vertical portion 15v and an elongated hole 15b is provided in the horizontal portion 15 h.

As shown in fig. 2 (a), the vertical portion 15v of the bracket 15 hangs down between the vibration-proof rubber 13 and the jack bolt 14. Therefore, as shown in fig. 2 (b), when the floor panel 11 is displaced rearward, the rear surface of the vertical portion 15v of the front bracket 15 comes into contact with the front surface of the front jack bolt 14, thereby restricting the deformation of the front and rear anti-vibration rubbers 13. On the contrary, when the floor 11 is displaced forward, the front surface of the vertical portion 15v of the rear bracket 15 comes into contact with the rear surface of the rear jack bolt 14, thereby restricting the deformation of the front and rear vibration-proof rubbers 13. The shock absorbing member 15a such as rubber, resin, or cloth provided on the distal end side of the vertical portion 15v suppresses damage to the jack bolt 14 and the bracket 15 when they are in contact with each other.

On the other hand, the horizontal portion 15h of the bracket 15 is in surface contact with the lower surface of the floor panel 11, and is fixed to the lower surface of the floor panel 11 by a bolt inserted through the elongated hole 15 b. Since the bracket 15 can be adjusted in position in the front-rear direction within the range of the elongated hole 15b, the distance between the vertical portion 15v of the bracket 15 and the jack bolt 14, that is, the amount of displacement in the front-rear direction of the vibration-proof rubber 13 can be arbitrarily set. The design distance between the vertical portion 15v of the bracket 15 on the front side and the jack bolt 14 is made shorter than the design distance between the vertical portion 15v of the bracket 15 on the rear side and the anti-vibration rubber 13, and the design distance between the vertical portion 15v of the bracket 15 on the rear side and the jack bolt 14 is made shorter than the design distance between the vertical portion 15v of the bracket 15 on the front side and the anti-vibration rubber 13, so that the anti-vibration rubber 13 does not contact the bracket 15 even if the floor 11 moves in the front-rear direction.

Fig. 4 is a plan view showing a structure between the floor 11 and the underfloor base 12, and fig. 4 (a) corresponds to fig. 2. As shown in the drawing, vibration-proof rubbers 13 and the like are provided at four corners between the floor 11 and the underfloor base 12. On the other hand, fig. 4 (b) is a modification of fig. 2 and 4 (a). In fig. 4 (b), instead of the configuration of fig. 2 and 4 (a), the jack bolt 14, the bracket 15, and the vibration-proof rubber 13 are arranged in this order from the front, and the vibration-proof rubber 13, the bracket 15, and the jack bolt 14 are arranged in this order from the rear. Even with such a configuration, the same operational effects as those in fig. 2 and 4 (a) can be obtained.

Fig. 5 is a side view for explaining the original use of the jack bolt 14. The jack bolt 14 is a member conventionally provided to jack up and support the floor panel 11, and therefore has sufficient mechanical strength to restrict displacement of the floor panel 11, for example, when the deteriorated vibration-proof rubber 13 is replaced.

In the present embodiment, since the horizontal portion 15h of the bracket 15 is disposed above the jack bolt 14, when the jack bolt 14 jacks up the floor 11, the floor 11 is supported via the horizontal portion 15 h. Therefore, the horizontal portion 15h of the bracket 15 functions as a reinforcement of the floor panel 11, and a situation in which a local load from the jack bolt 14 directly acts on the floor panel 11 can be avoided.

According to the elevator car of the passenger or freight elevator of the embodiment described above, by utilizing the structure having high mechanical strength which has been conventionally used, it is possible to suppress an increase in weight and an increase in cost of the elevator car and to suppress damage to the vibration-proof rubber.

Claims

1. An elevator cage of an elevator for carrying people and goods is characterized in that,

the elevator car of the elevator for carrying people and goods is provided with:

a floor on which a cargo is placed;

a underfloor base that supports the floor via a plurality of vibration-proof rubbers;

a plurality of jack bolts provided on the underfloor base and supporting the floor when the vibration-proof rubber is replaced; and

and a bracket that hangs down from a lower surface of the floor and restricts deformation of the vibration-proof rubber in a front-rear direction by coming into contact with the jack bolt.

2. The elevator car of an elevator for carrying persons or goods according to claim 1,

the vibration-proof rubber, the bracket, and the jack bolt are arranged in this order from the front,

the jack bolt, the bracket, and the vibration-proof rubber are arranged in this order from the front at the rear.

3. The elevator car of an elevator for carrying persons or goods according to claim 1,

the jack bolt, the bracket, and the vibration-proof rubber are arranged in this order from the front,

the vibration-proof rubber, the bracket, and the jack bolt are arranged in this order from the front at the rear.

4. Elevator car of a passenger-cargo elevator according to claim 2 or 3,

the design distance between the bracket at the front and the jack bolt is smaller than the design distance between the bracket at the rear and the anti-vibration rubber,

the design distance between the bracket at the rear and the jack bolt is smaller than the design distance between the bracket at the front and the anti-vibration rubber.

5. The elevator car of an elevator for carrying persons or goods according to claim 1,

the bracket has a substantially L-shaped cross-section,

a vertical portion having a substantially L-shaped cross section is disposed between the vibration-proof rubber and the jack bolt,

the horizontal portion of the substantially L-shaped cross section is in surface contact with the floor above the jack bolt.

6. Elevator car of an elevator for carrying persons or goods according to claim 5,

a buffer member is provided on the jack bolt side of the vertical portion of the bracket.

7. The elevator car of an elevator for carrying persons or goods according to claim 6,

the buffer member is any one of rubber, resin, and cloth.

8. Elevator car of an elevator for carrying persons or goods according to claim 5,

a long hole is arranged on the horizontal part of the bracket,

the distance between the vertical portion of the bracket and the jack bolt can be adjusted by fastening the bolt penetrating through the long hole.