CN117730046A - Elevator car and elevator - Google Patents

Abstract

The invention provides an elevator car and an elevator. The elevator car comprises a car floor, a car frame and a load detection device. The car floor has a plate-like floor body and a pair of side frames provided at positions facing each other across the floor body for supporting opposite ends of the floor body. The car frame can support the car floor via the vibration-proof member. The load detection device detects a load acting on the car floor based on the displacement amount of the car floor. The load detection device has a detection plate, both ends of which in the extending direction are fixed to the pair of side frames, respectively, and has a surface to be detected on the opposite side of the surface opposite to the lower surface of the car floor.

Description

Elevator car and elevator

Technical Field

The present invention relates to an elevator car and an elevator.

Background

In order to prevent a load greater than or equal to a rated value from being applied to a hoisting machine or the like, an elevator in which passengers are loaded in an elevator car and lifted is provided with a load detection device for detecting the load of the elevator car. As a conventional technique related to a load detection device, for example, a technique described in patent document 1 is known.

Patent document 1 discloses the following structure: a load detector is mounted on a lower frame supporting a car floor of an elevator car, and an operating element is mounted in the center of a load detection frame which is displaced in synchronization with the sinking of a plurality of vibration-proof rubbers, and the distance between the operating element and the load detector is measured by the load detector. In the load detector, the load is detected by calculating the displacement amount of the load detection frame. Patent document 1 also describes the following technique: in order to reduce deflection of the load detection frame caused by local load applied to the car floor, the load detection frame is constituted by a pair of parallel frames respectively installed between 2 vibration-proof rubbers, and an actuator support frame installed in the middle of the pair of parallel frames and having an actuator installed in the center, and low rigidity portions having lower rigidity than other portions are provided at both end portions of the pair of parallel frames.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2015-217993

Disclosure of Invention

Problems to be solved by the invention

However, in the technique described in patent document 1, in order to detect the load of the elevator car, it is necessary to install a pair of parallel frames, an operating element supporting frame, and other members below the car floor. Therefore, there is a disadvantage in that the underfloor structure of the elevator car becomes complicated. On the other hand, in order to simplify the underfloor structure of the elevator car, it is effective to directly detect the displacement of the car floor by a sensor or the like. However, when the load of the elevator car increases due to the loading of passengers or the like, there is a concern that the car floor is bent downward with the load, and the displacement of the car floor cannot be accurately detected due to the influence of the downward bending.

The invention aims to provide an elevator car and an elevator, which can simplify the structure of a load detection device and reduce the influence of deflection of a car floor on the load detection device.

Means for solving the problems

In order to solve the above-described problems, an elevator car according to the present invention includes a car floor having a plate-like floor body and a pair of side frames provided at positions facing each other with the floor body interposed therebetween, for supporting opposite ends of the floor body. The elevator car further includes a car frame for supporting the car floor via the vibration isolation member, and a load detection device for detecting a load acting on the car floor based on the displacement amount of the car floor. The load detection device includes: a detection plate having a pair of side frames respectively fixed to both ends in the extending direction and having a gap between the detection plate and the lower surface of the car floor, and having a surface to be detected on the opposite side of the surface facing the lower surface of the car floor; and a load detector which is disposed in a state of facing the surface to be detected of the detection plate and is capable of measuring a distance from the surface to be detected.

The elevator of the invention has the elevator car.

Effects of the invention

According to the present invention, the structure of the load detection device is simplified, and the influence of the deflection of the car floor on the load detection device can be reduced.

Drawings

Fig. 1 is a schematic configuration diagram of an elevator according to an embodiment of the present invention.

Fig. 2 is an enlarged side view of an elevator car 3 according to an embodiment of the present invention.

Fig. 3 is a perspective view of an arrangement state of a car floor 10 in an elevator car 3 according to an embodiment of the present invention, as viewed from above.

Fig. 4 is a perspective view of an arrangement state of a car floor 10 in an elevator car 3 according to an embodiment of the present invention, as seen from below.

Fig. 5 is a configuration diagram showing an arrangement state of a car floor 10 in an elevator car 3 according to an embodiment of the present invention, as viewed from the front.

Fig. 6 is a perspective view of the car floor 10 according to an embodiment of the present invention as viewed from the upper surface.

Fig. 7 is a perspective view of the car floor 10 according to an embodiment of the present invention as seen from the lower surface.

Fig. 8 is an exploded perspective view of the floor main body 12 constituting the car floor 10 according to the embodiment of the present invention.

Fig. 9 is an enlarged view of the area E of fig. 5.

Detailed Description

An elevator car and an elevator according to an embodiment of the present invention will be described below with reference to the drawings. The present invention is not limited to the following examples. In the drawings described below, common components are denoted by the same reference numerals.

First, the structure of an elevator according to an embodiment of the present invention (hereinafter, referred to as this embodiment) will be described with reference to fig. 1. Fig. 1 is a schematic configuration diagram showing an elevator according to the present embodiment.

In the present embodiment, as shown in fig. 1, the so-called 2: an elevator 1 of the 1-winding (roping) type will be described as an example. In addition, the elevator of the present invention is not limited to 2: 1-winding type elevator can be applied to 1:1 winding mode elevator.

As shown in fig. 1, an elevator 1 includes: an elevator car 3 that moves up and down in a hoistway; a main sling 2; a traction machine 90; and a counterweight 5 suspended from the elevator car 3 via the main sling 2. Hereinafter, the direction in which the elevator car 3 and the counterweight 5 move up and down is referred to as the up-down direction.

The elevator car 3 is used for carrying persons and cargoes. Lower car sheaves 4A, 4B are provided at the lower part of the elevator car 3 in the up-down direction. The main rope 2 is wound around the lower car sheaves 4A and 4B. The balance weight 5 is provided with a weight-side sheave 6. The main rope 2 is wound around the counterweight-side sheave 6.

The hoisting machine 90 is disposed at the uppermost portion of the hoistway. The hoisting machine 90 has a sheave around which the main hoisting rope 2 is wound. The hoisting machine 90 elevates the elevator car 3 and the counterweight 5 in bucket form via the main hoisting rope 2.

One end of the main rope 2 is attached to the upper part of the hoistway. The main rope 2 extends from the upper part of the hoistway toward the car-side sheaves 4A and 4B. The main rope 2 is wound around the car-side sheaves 4A and 4B and the sheave of the hoisting machine 90 and the counterweight-side sheave 6 in this order from one end.

The other end portion of the main rope 2 extending upward from the counterweight-side sheave 6 is attached to the upper portion of the hoistway, as is one end portion. The elevator car 3 and the counterweight 5 are driven by the hoisting machine 90 to move up and down in the hoistway.

Further, the elevator car 3 includes: a car floor 10 serving as a floor surface of the car room 30; a side plate 7; a top plate 9; and a gate 8. The elevator car 3 further includes a car frame 20 (see fig. 2) for supporting the car floor 10. The car floor 10 and the ceiling 9 are disposed to face each other in the up-down direction. The side plates 7 are erected around the car floor 10 and the ceiling 9. In addition, an entrance is provided in one side plate 7 among the side plates 7 surrounding the periphery of the car floor 10. The door 8 is provided in the doorway so as to be openable and closable. The car floor 10, the side plates 7, the top plate 9, and the door 8 constitute a car room 30 in which people and cargoes are loaded in the elevator car 3.

Fig. 2 is an enlarged side view of the elevator car 3 shown in fig. 1. Fig. 3 is a perspective view of the arrangement of the car floor 10 in the elevator car 3 from above, and fig. 4 is a perspective view of the arrangement of the car floor 10 in the elevator car 3 from below. Fig. 5 is a block diagram showing a state in which the car floor 10 in the elevator car 3 is disposed when viewed from the front. In the present embodiment, as shown in fig. 2 to 5, the directions of the front and rear, up and down, and left and right are defined with reference to the line of sight of the occupant of the elevator 1 facing the elevator car 3.

As shown in fig. 2 to 4, the elevator car 3 includes a car frame 20 and a car room 30 disposed inside the car frame 20. The floor of the car room 30 is constituted by the car floor 10. The elevator car 3 further includes a pulley mechanism 40 and a load detection device 60 (see fig. 5).

[ cage frame ]

The car frame 20 has: an upper frame 22 disposed at an upper portion of the car chamber 30; a lower frame 23 disposed at a lower portion of the car chamber 30; a pair of opposite frames 21A, 21B connecting the ends of the upper frame 22 and the lower frame 23 at the side of the car chamber 30. The car frame 20 further includes a pair of floor support beams 41A and 41B for supporting the car floor 10. The car frame 20 is disposed so as to be displaced forward from the center position of the car chamber 30 in the front-rear direction. A pair of lower car sheaves 4A, 4B are disposed at a center position in the front-rear direction of the car chamber 30.

Both ends in the longitudinal direction (left-right direction) of the upper frame 22 are connected to the upper ends of the pair of opposite frames 21A, 21B by bolts. Both ends in the longitudinal direction (left-right direction) of the lower frame 23 are connected to the lower ends of the pair of opposite frames 21A, 21B by bolts. A suspension such as a tail cable and a compensation chain, not shown, is attached to the lower frame 23.

As shown in fig. 4, a pair of floor support beams 41A, 41B are fixed to both end portions of the lower frame 23 in the left-right direction by bolts. A vibration isolation member 46 is interposed between the pair of floor support beams 41A and 41B and the car floor 10. The pair of floor support beams 41A, 41B support the car floor 10 via the vibration-proof member 46. Each of the floor support beams 41A and 41B is constituted by a member extending in the front-rear direction, and is horizontally arranged in an orthogonal orientation to the lower frame 23.

Vibration isolation members 46 are disposed at both ends of the floor support beams 41A and 41B in the longitudinal direction, respectively. The vibration isolation member 46 is made of, for example, vibration isolation rubber. The car floor 10 is supported above the floor support beams 41A and 41B via vibration isolation members 46. Thereby, the load (load) of the elevator car 3 is simultaneously applied to the plurality of vibration-proof members 46 via the car floor 10. When the vibration isolation members 46 are deformed by receiving the load of the elevator car 3, the car floor 10 is displaced downward (sinking) according to the amount of deformation. The displacement amount of the car floor 10 varies according to the load of the elevator car 3. Specifically, the greater the load of the elevator car 3, the greater the displacement amount of the car floor 10. Thus, the load of the elevator car 3 can be detected by detecting the displacement amount of the car floor 10.

[ Pulley mechanism ]

A pulley mechanism 40 is provided below the car floor 10. The pulley mechanism 40 includes a pair of pulley brackets 42A, 42B, a rope guide 44, and a detector bracket 43 in addition to the pair of lower car pulleys 4A, 4B. The pair of pulley brackets 42A, 42B are mounted on a structure independent of the lower frame 23. Specifically, the pair of sheave brackets 42A, 42B are fixed by bolts to the lower surfaces of the pair of floor support beams 41A, 41B that are structurally independent from the lower frame 23 of the car frame 20. The under-car sheaves 4A, 4B are rotatably mounted to the sheave brackets 42A, 42B, and the under-car sheaves 4A, 4B are rotatably mounted to the sheave brackets 42A, 42B.

The rope guide 44 is bridged between the pair of pulley brackets 42A, 42B. The rope guide 44 is a rail-like member long in the left-right direction. Both ends of the rope guide 44 in the longitudinal direction are fixed to lower ends of the pulley brackets 42A, 42B by bolts. The rope guide 44 plays a role of protecting the main rope 2 so that foreign matter is not caught in the main rope 2 wound around the lower car sheaves 4A, 4B.

The detector bracket 43 is a bracket for attaching a load detector 50 described later to the pulley mechanism 40. The detector bracket 43 is installed between the pair of pulley brackets 42A and 42B. The detector bracket 43 is an elongated member that is long in the lateral direction. Both ends of the detector bracket 43 are fixed to the vicinity of the upper ends of the pulley brackets 42A, 42B by bolts.

[ Car floor ]

Next, the structure of the car floor 10 according to the present embodiment will be described with reference to fig. 6 to 8. Fig. 6 is a perspective view of the car floor 10 of the present embodiment as seen from the upper surface, and fig. 7 is a perspective view of the car floor 10 of the present embodiment as seen from the lower surface. Fig. 8 is an exploded perspective view of the floor main body 12 constituting the car floor 10.

As shown in fig. 6, the car floor 10 of the present embodiment includes a floor frame 16 and a floor main body 12.

The floor frame 16 includes a rear frame 11, a pair of side frames 13A, 13B, and a front frame 14. The pair of side frames 13A, 13B extend in the front-rear direction of the car floor 10, and fix the floor main body 12 to the floor support beams 41A, 41B. The front frame 14 extends in the lateral direction of the car floor 10, and protects the front side surface of the floor main body 12. The rear frame 11 extends in the lateral direction of the car floor 10, and protects the rear side surface of the floor main body 12.

The side frames 13A and 13B are formed to have a length substantially equal to the length of the floor main body 12 in the front-rear direction. The side frames 13A and 13B are formed of plate-like members bent at right angles so as to have lower surface portions arranged above the vibration isolation members 46 and side surface portions formed to cover the length of the side surfaces of the floor main body 12, and the vibration isolation members 46 are arranged on the upper surface sides of the floor support beams 41A and 41B. The side frames 13A and 13B include vibration-proof member contact portions 15 on the lower surface portions thereof, which are arranged to contact vibration-proof members 46 provided on the floor support beams 41A and 41B. The side frames 13A and 13B are fixed to the vertical frames 21A and 21B of the car frame 20 at the side portions.

The front frame 14 and the rear frame 11 are formed to have a length substantially equal to the length of the floor main body 12 in the lateral direction, and are fixed to cover the side surfaces of the floor main body 12 in the longitudinal direction. The rear frame 11 is fixed to the lower surface of the floor main body 12 at the lower end in the up-down direction, and is fixed to a pair of side frames 13A, 13B at both end portions in the left-right direction. The front frame 14 is fixed to the pair of side frames 13A and 13B at both ends in the left-right direction. The front frame 14 and the rear frame 11 of the floor main body 12 are formed in shapes suitable for respective applications. For example, a threshold, not shown, is fixed to the upper surface of the front frame 14 in the up-down direction.

As shown in fig. 8, the floor main body 12 includes an upper floor member 12A, a lower floor member 12B, and a plurality of floor reinforcing members 12C. The upper floor member 12A and the lower floor member 12B are each constituted by a flat plate-like rectangular member. The floor reinforcing member 12C is a C-shaped (transverse U-shaped) long member that is long in the front-rear direction. The upper floor member 12A and the lower floor member 12B are arranged in a state of being opposed to each other in the up-down direction. The plurality of floor reinforcing members 12C are disposed so as to be sandwiched between the upper floor member 12A and the lower floor member 12B. The plurality of floor reinforcing members 12C are arranged closely at regular intervals in the left-right direction. Further, the plurality of floor reinforcing members 12C are fixed between the upper floor member 12A and the lower floor member 12B using an adhesive.

In the present embodiment, as shown in fig. 7, a detection plate 51 of a load detection device 60 described later is attached to the lower surface side of the car floor 10 in the up-down direction.

In the present embodiment, the floor main body 12 is constituted by an upper floor member 12A, a lower floor member 12B, and a plurality of floor reinforcing members 12C provided therebetween. Thereby, the section modulus of the car floor 10 of the elevator car 3 becomes large. Therefore, for example, compared with the case where the car floor 10 is formed of one plate, the car floor 10 can be made more rigid. This can reduce the amount of deformation (deflection) when gravity is applied to the car floor 10. Further, even when the weight applied to the car floor 10 is different between, for example, the deep side and the near side of the car room 3, the car floor 10 can be displaced substantially uniformly as a whole while suppressing the local displacement of the car floor 10. That is, the displacement amount of the car floor 10 at the time of loading can be averaged.

[ load detection device ]

Next, the load detection device 60 will be described. Fig. 9 is an enlarged view of the area E in fig. 5. The load detector 60 is composed of the detection plate 51 and the load detector 50.

As shown in fig. 7, the detection plate 51 is constituted by an elongated plate-like member extending in the left-right direction. The length of the detection plate 51 in the lateral direction is substantially the same as the length of the floor main body 12 in the lateral direction. The detection plate 51 is fixed to the lower surface portions of the pair of side frames 13A, 13B at the center positions in the front-rear direction by bolts at both ends in the left-right direction. The detection plate 51 is formed by bending downward in the up-down direction except for the portions (the central portions in the left-right direction) fixed to the both end portions of the side frames 13A and 13B so as to be spaced apart from the lower surface of the floor main body 12 by a predetermined distance. That is, the center portion of the detection plate 51 is disposed with a predetermined gap from the lower surface of the floor main body 12.

As shown in fig. 9, the lower surface of the center portion of the detection plate 51 in the up-down direction serves as a detection surface 51a of a load detector 50 described later. In the present embodiment, the surface 51a to be detected is configured to be horizontal.

The load detector 50 is constituted by a distance measuring sensor that measures a distance from the object. The distance measuring sensor as the load detector 50 is constituted by a displacement sensor, for example. In the present embodiment, the load detector 50 is constituted by a pitch sensor (gap sensor), which is one type of displacement sensor. The sensing portion of the pitch sensor is provided at the upper end portion of the load detector 50. The sensing unit is a unit for measuring a distance (pitch) from the object. The load detector 50 may be any sensor that can measure the displacement of the car floor 10 based on the distance from the surface 51a to be detected of the detection plate 51.

The load detector 50 is attached to the pulley mechanism 40, and the pulley mechanism 40 is a structure independent of the lower frame 23 of the car frame 20. Hereinafter, the mounting structure of the load detector 50 will be described in detail.

The load detector 50 is attached to the detector bracket 43 via a position adjustment mechanism 55. The position adjustment mechanism 55 is a mechanism capable of adjusting the mounting position of the load detector 50 in the up-down-left-right direction. As described above, the detector bracket 43 is installed between the pair of pulley brackets 42A and 42B, and is fixed to the respective pulley brackets 42A and 42B.

As shown in fig. 9, the position adjustment mechanism 55 is constituted by a base member 53 and a position adjustment member 54. The base member 53 is fixed to the detector bracket 43 by bolts. The position adjusting member 54 is fixed to the base member 53 using a bolt 28. The load detector 50 is longitudinally mounted to the position adjustment member 54. The base member 53 is formed with a long hole 29 through which the male screw portion of the bolt 28 passes, and the position adjusting member 54 is also formed with a long hole 27 through which the male screw portion of the bolt 28 passes. The bolts 28 and the long holes 27, 29 are provided 2 at appropriate intervals in the left-right direction.

The long hole 29 is formed long in the left-right direction, and the long hole 27 is formed long in the up-down direction. Further, the long hole 29 and the long hole 27 are arranged in a manner intersecting each other. The male screw portion of the bolt 28 is inserted into each of the long holes 29, 27 at a position where the long hole 29 and the long hole 27 intersect. The base member 53 and the position adjusting member 54 are fixed to each other by a tightening force of a nut (not shown) engaged with the male screw portion of the bolt 28. In addition, in a state where the tightening force of the nut is released, the position adjusting member 54 can be moved in both the left-right direction as the longitudinal direction of the long hole 29 and the up-down direction as the longitudinal direction of the long hole 27. Thereby, the mounting position of the load detector 50 can be adjusted in the up-down direction and the left-right direction.

The load detector 50 is attached to the detector bracket 43 such that the upper end thereof is close to the surface 51a to be detected of the detection plate 51 and faces the same. In the present embodiment, the detection plate 51 is provided at a position opposed to the substantially central position in the lateral direction by the detector bracket 43 fixed between the pair of pulley brackets 42A and 42B.

Here, a method of detecting the load of the elevator car 3 using the load detection device 60 of the present embodiment will be described. First, during operation of the elevator 1, the load detector 50 measures the distance g from the detected surface 51a of the detection plate 51. In a state where the car room 30 of the elevator car 3 is empty, the load applied to the plurality of vibration damping members 46 via the car floor 10 is small, and therefore the displacement amount (sinking amount) of the car floor 10 is small. When the displacement amount of the car floor 10 is small, the distance g from the upper end of the load detector 50 to the detected surface 51a of the detection plate 51 is long. Therefore, the distance measured by the load detector 50 is long in the state where the car room 30 is empty.

On the other hand, in a state in which several passengers are loaded into the car room 30 of the elevator car 3, the load of the elevator car 3 increases according to the total weight of the passengers, and thus the displacement amount of the car floor 10 increases. When the displacement amount of the car floor 10 becomes large, the detection plate 51 approaches the load detector 50 by a corresponding amount, and therefore the distance g from the upper end of the load detector 50 to the detected surface 51a of the detection plate 51 becomes short. Accordingly, in a state where the passenger gets into the car chamber 30, the distance g measured by the load detector 50 becomes shorter according to the total weight of the passenger. At this time, the change in the distance g measured by the load detector 50 corresponds to the displacement amount of the car floor 10. The displacement of the car floor 10 is determined by the load of the elevator car 3 including the total weight of passengers. Thus, the load of the elevator car 3 can be detected based on the detection result of the load detector 50.

In the present embodiment, the detection plate 51 for load detection is fixed to the pair of side frames 13A, 13B constituting the car floor 10. Accordingly, compared with the conventional structure in which the weight members are mounted between the vibration isolation members 46 to average the deflection of the vibration isolation members 46 and the detection plate is mounted at the center position thereof, the structure is simple and the mounting work is easy. Further, when the scale members are mounted between the vibration isolation members 46, there is a concern that the fixing points (joints) between the members become large, and the detection accuracy is degraded. In the present embodiment, since the both end portions of the detection plate 51 are fixed to only the pair of side frames 13A, 13B, the number of fixing points is small, and the detection accuracy can be improved.

When the floor main body 12 formed by overlapping a plurality of members is used as in the present embodiment, the adhesive used for joining the floor main body 12 may creep with the passage of time, and the displacement amount of the center portion of the car floor 10 may vary. In contrast, in the present embodiment, since the detection plate 51 is fixed to the side frames 13A and 13B, even when the central portion of the floor main body 12 is displaced with the passage of time, the position of the detection plate 51 is not displaced. Therefore, the load detection device 60 of the present embodiment is less susceptible to degradation of the car floor 10 over a long period of time, and can maintain the detection accuracy.

In the present embodiment, the floor main body 12 is constituted by the upper floor member 12A, the lower floor member 12B, and the plurality of floor reinforcing members 12C provided therebetween, and high rigidity is achieved. Therefore, the local displacement of the car floor 10 is suppressed, and even when the mounting position (loading position) of the passenger is shifted, the pair of side frames 13A, 13B are uniformly displaced. Thus, the displacement of the detection plate 51 fixed to the pair of side frames 13A and 13B is averaged regardless of the loading position, and therefore, high detection accuracy can be obtained by the load detection device 60 of the present embodiment.

In the present embodiment, the end portions of the detection plate 51 are fixed to the center positions of the side frames 13A and 13B in the front-rear direction, and the load detector 50 is disposed at a position opposed to the center position of the detection plate 51 in the left-right direction, but the present invention is not limited thereto. By increasing the rigidity of the floor main body 12, the displacement amount of the car floor 10 is averaged, and therefore, even when the position of the detection plate 51 and the attachment position of the load detector 50 to the detection plate 51 are changed, load detection can be performed with high accuracy. By setting the position of the detection plate 51 and the position of the load detector 50 so that the load can be detected at the center position of the car floor 10 as in the present embodiment, the load can be detected with higher accuracy.

In the present embodiment, the load detector 50 is mounted on a structure independent of the lower frame 23 on which the overhang is mounted. Thus, even when the load applied from the overhang to the lower frame 23 changes due to the lifting stroke of the elevator car 3, the load of the elevator car 3 can be detected as much as possible without being affected by the load.

The above-described embodiments are described in detail for the purpose of easily understanding the present invention, and are not necessarily limited to the configuration including all of the description. For example, a part of the structure of the embodiment may be replaced with another structure, and another structure may be added to the structure of the embodiment. In addition, other structures may be added, deleted, or replaced with some of the structures of the embodiment.

For example, the position adjustment mechanism in the present embodiment is configured to be able to adjust the mounting position of the load detector 50 in the up-down-left-right direction, but is not limited thereto, and may be configured to be able to adjust the mounting position of the load detector 50 in only the up-down direction or only the left-right direction.

In the present embodiment, the vibration-proof rubber is exemplified as the vibration-proof member 46, but the vibration-proof member 46 is not limited to the vibration-proof rubber, and may be constituted by other members, for example, an elastic member such as a spring, as long as the vibration-proof member exhibits vibration-proof performance.

Description of the reference numerals

1 … … elevator, 2 … … main sling, 3 … … car room, 4A, 4B … … car lower sheave, 10 … … car floor, 11 … … rear frame, 12 … … floor main body, 12A … … upper floor member, 12B … … lower floor member, 12C … … floor reinforcing member, 13a … … side frame, 14 … … front frame, 15 … … vibration-proof member abutment portion, 16 … … floor frame, 20 … … car frame, 21A, 21B … … upright frame, 22 … … upper frame, 23 … … lower frame, 27, 29 … … slot, 28 … … bolt, 30 … … car room, 40 … … pulley mechanism, 41A, 41B … … floor support beam, 42A, 42B … … sheave bracket, 43 … … detector bracket, 44 … … rope guide, 46 … … vibration-proof member, 50 … … load detector, 51 … … detection plate, 51A … … detected surface, 50 … … base member, 54 … … position adjustment member, 55 … … position adjustment mechanism, … … position detection device.

Claims (4)

1. An elevator car, comprising:

a car floor having a plate-like floor body and a pair of side frames provided at positions facing each other across the floor body, for supporting opposite ends of the floor body;

a car frame for supporting the car floor via a vibration-proof member; and

a load detection device capable of detecting a load acting on the car floor based on the displacement amount of the car floor,

the load detection device includes:

a detection plate having a detection surface on the opposite side of a surface facing the lower surface of the car floor, the detection plate having both ends in the extending direction fixed to the pair of side frames, respectively; and

and a load detector which is disposed in a state of facing the detection surface of the detection plate and is capable of measuring a distance from the detection surface.

2. The elevator car of claim 1, wherein:

the car floor includes:

an upper floor member;

a lower floor member opposite to the upper floor member; and

and a plurality of floor reinforcing members disposed between the upper floor member and the lower floor member.

3. The elevator car of claim 1, wherein:

the car frame has a lower frame to which a overhang can be mounted,

the load detector is mounted to a structure independent of the lower frame.

4. An elevator, characterized in that:

having an elevator car, the elevator car comprising:

a car floor having a plate-like floor body and a pair of side frames provided at positions facing each other across the floor body, for supporting opposite ends of the floor body;

a car frame for supporting the car floor via a vibration-proof member; and

a load detection device capable of detecting a load acting on the car floor based on the displacement amount of the car floor,

the load detection device includes:

a detection plate having a detection surface on the opposite side of a surface facing the lower surface of the car floor, the detection plate having both ends in the extending direction fixed to the pair of side frames, respectively; and

and a load detector which is disposed in a state of facing the detection surface of the detection plate and is capable of measuring a distance from the detection surface.