CN1772587A

CN1772587A - Elevator

Info

Publication number: CN1772587A
Application number: CN 200510120211
Authority: CN
Inventors: 野口直昭; 宫田弘市; 三好宽
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2004-11-09
Filing date: 2005-11-07
Publication date: 2006-05-17
Anticipated expiration: 2025-11-07
Also published as: CN100360391C; HK1087391A1; JP4052304B2; JP2006131385A

Abstract

To provide an elevator, the elevator having an inexpensive guide device simple in constitution. The elevator has a pair of guide rails (1) arranged in a hoistway and a riding car (43) lifting along these guide rails, and controls a pressing force by one actuator (33) to guide rails of two guide rollers (2a, 2b) arranged on both sides by sandwiching the guide rails (1). Coil springs (4a, 4b) for pressing the rollers (2a, 2b) to the guide rails are fixed to rods (5a, 5b) connected to both ends of a movable body (35) movably horizontally. Compressive forces of the coil springs (4a, 4b) can be changed according to the vibration of the riding car (43) and the state of an unbalanced load by the control force of the actuator (33).

Description

Elevator

Technical field

The present invention relates to a kind of elevator, and the present invention especially is adapted to realize the riding traveling comfort of good elevator along lifting rail.

Background technology

Because elevator is along the lifting rail that is provided with on vertical, so in the upper and lower of lift car guiding device has been installed respectively.This guiding device is generally by the roller that contacts with guide rail, constitute roller with the rod member of this roller of axle bearing and with certain power by being pressed in spring on the guide rail etc.In order to improve the riding traveling comfort of lift car, in the content of patent documentation 1 record a kind of method is disclosed for example, in the method, detect by degree of dip to lift car, be applied to pressing force on the guide rail to change by roller.In this invention, possess a kind of mechanism, the output of the sensor that this mechanism is detected according to the degree of dip to lift car, drive installation is at the actuator of spring end.

Patent documentation 1: the spy opens flat 4-365775 communique

But, in above-mentioned patent documentation 1, on 3 rollers that guiding device had actuator has been installed respectively, so the complex structure of guiding device and costing an arm and a leg.And when elevator was installed, the spring that generally will be in the natural length state was pressed into, thus with certain power with spring by being pressed on the guide rail.In above-mentioned patent documentation 1, it is installed in actuator on the end of this spring, and is not making consideration aspect the comfort feature of installation exercise and initial stage debugging operation.

Summary of the invention

The object of the present invention is to provide a kind of elevator, this elevator has guiding device simple in structure and easy for installation.

In order to achieve the above object, in the present invention, roller is arranged on the both sides of guide rail and clamps guide rail, and is applied to pressing force on the guide rail by a driving device controls by this roller.This actuating device by one with the same direction of roller on carry out horizontal motion movable link, with a pair of rod of this movable link bonded assembly and spring, according to the vibration of lift car and degree of dip etc. to controlling with the rod member of axle bearing roller.

The invention effect

According to the present invention, can constitute a kind of vibrationproof guiding device simple in structure and easy for installation, can provide a kind of riding traveling comfort good elevator.

Description of drawings

Fig. 1 is the elevator unitary side pseudosection among the present invention the 1st embodiment.

Fig. 2 is the side-looking sectional detail drawing of the guiding device of conventional confguration.

Fig. 3 is the horizontal sectional drawing of the guiding device among Fig. 2.

Fig. 4 is the side cutaway view of the guiding device among the present invention the 1st embodiment.

Fig. 5 is the horizontal sectional drawing of the guiding device among Fig. 4.

Fig. 6 is the horizontal sectional drawing of the present invention the 2nd embodiment.

Nomenclature

The 1-guide rail, 2a, 2b, 2c-roller, 3a, 3b, 3c-rod member, 4a, 4b, 4c-coil spring, 5a, 5b, 5c-rod, 6a, 6b, the fixing nut, 7a, 7b, 36a, 36b-elastic component used of 6c-, the 8-brace table, 9-mounted panel, 10a, 10b, 10c-axle, the 33-actuator, 34-cheese head screw, 35-movable link, 37-linear guide member, 41a, 41b-guiding device, 42-vibration-proof rubber piece, the 43-lift car, 44-elevator door, 45-support frame.

The specific embodiment

Followingly embodiments of the invention are described with reference to accompanying drawing.Fig. 1 is the lift appliance single-piece side cutaway view among the present invention the 1st embodiment.In the hoist trunk of elevator, on vertical, be provided with the guide rail that pair of right and left is T font section shape, lift car 43 moves up and down along this guide rail 1.Wherein, because guide rail 1 difference of height and distortion etc. can occur when mounted, and this difference of height and distortion etc. act on lift car 43 and make it produce forced displacement.In general, for the transfer of vibration that prevents to produce by this forced displacement to lift car 43, between lift car 43 and car frame 7, be provided with vibration-proof rubber piece 42.And car frame 7 is configured to be provided with respectively at an upper portion thereof and at a lower portion thereof guiding

device

41a, 41b, thereby lift car 43 can be moved up and down along guide rail 1.

Below, about being installed in guiding device 41a, the 41b on the car frame 7,, roller 2a, the 2b that seizes guide rail 1 protuberance from both sides on both sides by the arms is elaborated with reference to Fig. 2 and Fig. 3.Fig. 2 is the side cutaway view of guiding device.At first, by a pair of

rod member

3a, 3b axle bearing, the lower end of these rod members is supported on the brace table 8 by pole respectively for roller 2a, 2b.Wherein, even

roller

2a, 2b must be arranged to when lift car 43 lateral oscillation take place, perhaps overbalance occurs owing to the passenger takes advantage of into the load that causes lift car 43, it can not break away from guide rail 1 yet.For with

roller

2a, 2b by being pressed on the guide rail 1 (not shown), the state that coil

spring

4a, 4b are compressed with its natural length is fixed on rod member 3a, the 3b.

Be applied to pressing force on the guide rail 1 in order to regulate easily by

roller

2a, 2b, more satisfactory is to adopt a kind of structure that can freely change

coil spring

4a, 4b length.For this reason, generally adopt following a kind of structure, in this structure, by

nut

6a, 6b set on the fastening end by fixing excellent 5a, 5b of brace table 8 to change the amount of compression of coil spring 4a, 4b.In addition, abnormal dip occurs, be provided with elastic component 7a, 7b respectively,, thereby avoid

rod member

3a, 3b to surpass the angle of rotation of regulation by the effect of these elastic components 7a, 7b performance drg in order to prevent lift car.

Fig. 3 is the top plan view of guiding device.Be provided with among this guiding device 41a, the 41b and clamp T shape guide rail 1 and its three

roller

2a, 2b, 2c that exerts pressure, and rod member 3a, the 3b, the 3c that support above-mentioned rollers with axle respectively.And be provided with

coil spring

4a, 4b, 4c, this

coil spring

4a, 4b, 4c by this

rod member

3a, 3b, 3c respectively from three directions with

roller

2a, 2b, 2c by being pressed on the guide rail 1.In addition, in order on the direction vertical, to press

pressing roller

2a, 2b, excellent 5a, 5b and

coil spring

4a, 4b and the coaxial setting of the line of centers of

rod member

3a, 3b with each face of described guide rail 1.In order to realize said structure easily, the end of described excellent 5a, 5b, 5c is fixed on the tabular surface of the brace table 8 that for example is the コ word shape.

Below, with reference to Fig. 4 the first embodiment of the present invention is described.Be connected on the stay bearing plate 9 on the supported platform 8 actuator 33 has been installed.This actuator 33 for example directly links to each other with movable link 35 by cheese head screw 34 and coupler (not shown).Wherein, movable link 35 is the same with actuator 33, for example is installed on the stay bearing plate 9 by linear guide member 37, and can only carries out horizontal motion in the direction identical with the swaying direction of roller 2a, 2b.The excellent 5a, the 5b that have connected pair of right and left at the two ends of movable link 35, the end of

coil spring

4a, 4b is fixed by nut 6a, the 6b that is arranged on this stick end.After adopting this structure,, the horizontal balance of movable link 35 is controlled, just can be changed the compressive force of

coil spring

4a, 4b by sending instruction to actuator 33.Wherein, the command signal that sends to actuator 33 is according to the acceleration pick-up (not shown) that is arranged in the lift car 43, and perhaps the output of the sensor (not shown) that the interval between lift car 43 and the guide rail 1 is detected determines.

Fig. 5 be first embodiment of the invention guiding device overlook horizontal sectional drawing.Movable link 35 is arranged on for example inside of the brace table 8 of コ word shape, has connected excellent 5a, 5b on its two ends, left and right sides.Movable link 35 can pass through actuator (33 among Fig. 4) with excellent 5a, 5b, carries out parallel motion on the directions X of Fig. 5.In structure so, brace table 8 is arranged in overlooking horizontal profile than the more close lift car side of these excellent 5a, 5b (the Y direction among Fig. 5), and the distance between this brace table 8 and excellent 5a, the 5b is a length L.Adopt this structure,, breach (on the short transverse at guiding device) need be set in the part aspect the moving range of the directions X of excellent 5a, 5b, thereby can form low-cost structure at brace table 8.

In general,

rod member

3a, 3b are supported with pole by brace table 8, can only swing at a hand of rotation.It is desirable to, the center of

rod member

3a, 3b is on the identical axis with the center of

coil spring

4a, 4b, should avoid excessive moment of flexure to act on axle 11a, 11b, the 11c or brace table 8 with pole support roller 2a, 2b.According to setting of the present invention, there is no need for example to make the section shape of

rod member

3a, 3b partly outstanding in the Y direction, therefore can form cheap guiding device.In addition, the two ends of movable link 35 are provided with the interference member of being made up of

elastic component

36a, 36b, even actuator 33 also can be controlled the moving range of movable link 35 within the specific limits just in case break down, can also alleviate the impulsive force that brace table 8 is caused simultaneously.

In addition, Fig. 6 is the horizontal profile detail drawing of the guiding device among the present invention the 2nd embodiment.In the present embodiment, the two ends of movable link 35 have protuberance or sweep, and excellent 5a, 5b are fixed on this position.And this movable link 35 is arranged on the outside of brace table 8.

When constituting by square column with rod member 3a, the 3b of

axle bearing roller

2a, 2b, from the center of

roller

2a, 2b to the width decision of the distance on the Y direction at the center of

rod member

3a, 3b by roller thickness and rod member.

In the guiding device that actuating device is not set, owing to excellent 5a, 5b need be fixed on the brace table 8, so the position of the Y direction of brace table 8 is typically provided to more close guide rail 1 side than excellent 5a, 5b.According to this structure, at this existing elevator, can use the brace table 8 of existing guiding device, append the driver train that movable link 35 and actuator 33 etc. are set.And owing to movable link 35 is not arranged on brace table 8 inside, so can enlarge the moving range of movable link 35, the U Zee bar steel Z of the enough cheapnesss of energy constitutes movable link 35.Identical with the 1st embodiment, be provided with a pair of

elastic component

36a, 36b in the inboard of brace table 8 or movable link 35, even actuator 33 is just in case break down, also the moving range of movable link 35 can be controlled in certain scope, can also alleviate the impulsive force that brace table 8 is caused simultaneously.

Claims

1. an elevator by forming along the pair of guide rails of vertical setting and along the lift car of this lifting rail in hoist trunk, is characterized in that,

Have and clamp described guide rail from both sides and be connected to its pair roller of exerting pressure, with a pair of rod and the movable link, the end that move in the horizontal direction are fixed on the elastic component on the described rod, by the actuator that the motion of described movable link is controlled, control is applied to pressing force on the described guide rail by described roller.

2. elevator according to claim 1 is characterized in that, is provided with the device that the inclination to the lateral oscillation of described lift car or lift car detects, and according to this detection limit the horizontal balance of described movable link is controlled.

3. elevator according to claim 1 is characterized in that, supports the brace table of described rod member with pole, in the horizontal profile of guiding device, is provided with than the inboard of the more close lift car of described rod.

4. elevator according to claim 1 is characterized in that, two end faces of described movable link perhaps are provided with a pair of elastic component with the brace table that pole is supported described rod member, and the amount of movement of described movable link is limited on the specified value.

5. elevator according to claim 1 is characterized in that, in the horizontal profile of guiding device, the section shape of described movable link is formed the コ word shape of bending two ends, and described rod is fixed in this sweep.