CN100379669C

CN100379669C - Elevator apparatus

Info

Publication number: CN100379669C
Application number: CNB038100797A
Authority: CN
Inventors: 木川弘; 冈本健一; 小寺秀明
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2003-06-06
Filing date: 2003-06-06
Publication date: 2008-04-09
Anticipated expiration: 2023-06-06
Also published as: JPWO2004108575A1; EP1518811B1; WO2004108575A1; CN1665735A; EP1518811A1; EP1518811A4; DE60335370D1; JP4323483B2

Abstract

The present invention relates to an elevator device which comprises a hoist way, a cage, a buffer, a cage arm and a switch, wherein the cage rises and falls in the hoist way, the buffer is arranged in a pit under the hoist way and can support the cage and absorb cage impact, the cage arm is arranged under the cage and can vertically move with the cage, and the switch is activated in response to the downward motion of the cage arm so as to stop the cage. The switch and the cage are arranged in a vertical projective plane of the cage by the arm, so the cross sectional area of the hoist way is reduced.

Description

Lift appliance

Technical field

The present invention relates to have in the hole that is arranged on the lift well bottom, for example accept and to surpass the lift appliance that descends the car of floor stop position most and absorb the energy disperser of its impact.

Background technology

As traditional lift appliance, known have a kind of the setting respectively in the hole of lift well bottom to descend floor to surpass switch, go up floor most and surpass switch with restriction with restriction most, by being separately positioned on car cam, counterweight cam and this switch butt on car and the counterweight, make switch motion, thereby make the structure that car promptly stops (such as, with reference to Japanese patent laid-open 7-157219 communique, Fig. 1).

But, occasion in this structure, car is fixed on the side of car with cam, counterweight also is fixed on the side of counterweight with cam, in addition, descend most floor in lift well, to be arranged on the outside of car, go up floor simultaneously most and also in lift well, be arranged on the outside that counterweight is used cam above switch, so there are the problems such as cross-sectional area increase of lift well with restriction with cam with limiting above switch.

Summary of the invention

The present invention is in order to address the above problem, and its purpose is, a kind of lift appliance that can dwindle lift well cross-sectional area etc. is provided.

Lift appliance of the present invention comprises: lift well; In this lift well, carry out the lifting body of lifting; Be arranged in the hole of described lift well bottom, accept described lifting body and absorb the energy disperser of its impact; Be arranged on described lifting body downside, follow the arm that lifting body moves up and down; And according to the switch that moves down, described lifting body is stopped of this arm, described switch and described arm are arranged in the vertical projection surface of described lifting body.Described energy disperser comprises: the energy disperser body; Be arranged on this energy disperser body around, towards upper and lower to the guide that extends; Be arranged to slidably and be fixed with the guide plate of described arm with respect to this guide above-below direction, on described guide, be provided with and be used for guide plate holding device that described guide plate is kept, on described arm, be provided with the arm holding device that the arm with described lifting body butt is kept, at described lifting body is that car is being gone up the floor stop position most and descended most when carrying out lifting in the range of floor stop position, described arm remains on the described guide with holding device and by described guide plate by described guide plate, when described lifting body carries out lifting outside described range, described arm remains on the lifting body with holding device by described arm, and follows lifting body and move up and down.

Description of drawings

Fig. 1 is the constructional drawing of the lift appliance of expression example 1 of the present invention.

Fig. 2 is the constructional drawing in the action way of lift appliance of presentation graphs 1.

Fig. 3 is the cutaway view along the III-III line of Fig. 2.

Fig. 4 is the constructional drawing of the lift appliance of expression example 2 of the present invention.

Fig. 5 is the constructional drawing of the lift appliance of expression example 3 of the present invention.

Fig. 6 is the constructional drawing of the lift appliance of expression example 4 of the present invention.

The specific embodiment

Below, with reference to accompanying drawing best example of the present invention is described.And in each example, put on prosign for same, equal member or position and describe.

Example 1

Fig. 1 is the constructional drawing of the lift appliance of example 1 of the present invention.

This lift appliance comprises: lift well 1; Be formed on the Machine Room 2 on lift well 1 top; Be arranged on the winch 9 in this Machine Room 2; By rope 6 well-bucket shapes be suspended on the pulley 4 of this winch 9 and the deflector wheel 5, as the car 7 of lifting body and as the counterweight 8 of lifting body; Be fixed on car 7 under, the car in the hole of lift well 1 bottom 10 is with energy disperser 11; Be fixed on counterweight 8 under, the counterweight in the hole of lift well 1 bottom 10 is with energy disperser 12.

In addition, lift appliance comprises: be fixed on the car arm 13 on the car usefulness energy disperser 11; The upper terminal safety switch 14 of the limit switch when being fixed on the car usefulness energy disperser 11, as Maintenance and Repair; The limit switch that car moved before action closes to an end with energy disperser 11 is a lower terminal end safety switch 15.

Above-mentioned car is damping hole bar type oleo gears with energy disperser 11, comprising: pedestal 16; Be fixed on the energy disperser body 17 on this pedestal 16; The a pair of bar-shaped guide 18 that is fixedly installed on the pedestal 16 is arranged respectively in the front and back of this energy disperser body 17; Can slide up and down and be the guide plate 19 of コ font with respect to this guide 18; Round guide 18 settings, with the spring 22 of guide plate 19 towards the car 9 side application of forces.Above-mentioned energy disperser body 17 comprises: in keep oil cylindrical shape fixed part 20; The columnar movable part 21 that slides up and down with respect to this fixed part 20.

This lift appliance also has and the identical structure of car 7 sides in counterweight 8 sides.

Promptly comprise: be fixed on the counterweight arm 30 on the counterweight usefulness energy disperser 12; The upper terminal safety switch 31 of the limit switch when being fixed on the counterweight usefulness energy disperser 12, as Maintenance and Repair; The limit switch that counterweight was moved before action closes to an end with energy disperser 12 is a lower terminal end safety switch 32.In addition, counterweight is also identical with energy disperser 11 with car with energy disperser 12, has: the energy disperser body 34 that is made of pedestal 33, fixed part 38 and movable part 39; Bar-shaped guide 35; Guide plate 36 and spring 37.

Below, the action of the lift appliance of said structure is described.

In service at above-mentioned lift appliance, because of any former thereby make car 7 surpass the occasion of descending the floor stop position most, conflict with arm 13 with car in the vertical projection surface of car 7 in the bottom surface of car 7 in its way, car is followed car 7 declines with arm 13 then, car arm 13 and upper terminal safety switch 14 butts, 14 actions of upper terminal safety switch, braking force acts on winch 9.

When even car 7 these braking forces do not stop yet, car 7 continues to descend, and follows car arm 13 and lower terminal end safety switch 15 butts that car 7 descends, 15 actions of lower terminal end safety switch, and the power supply of lift appliance is cut off, and car 7 promptly stops.At this moment, lower terminal end switch 15 is arranged to, and car uses the movable part 21 of energy disperser 11 in the front of the position that arrives its range, and promptly move the front of the car arrival lowest positions among car 7 arrival Fig. 2.

In addition, above-mentioned lift appliance in service, because of any former thereby make car 7 surpass the occasion that goes up the floor stop position most, conflict with arm 30 with the counterweight in the vertical projection surface of counterweight 8 in the bottom surface of counterweight 8 in its way, counterweight is followed counterweight 8 declines with arm 30 then, counterweight is moved with arm 30 and upper terminal safety switch 31 butts, upper terminal safety switch 31, and braking force acts on winch 9.

When even car 7 these braking forces do not stop yet, car 7 continues to rise, and counterweight 8 continues to descend, follow counterweight arm 30 and lower terminal end safety switch 32 butts that counterweight 8 descends, 32 actions of lower terminal end safety switch, the power supply of lift appliance is interdicted, and car 7 promptly stops.At this moment, lower terminal end switch 32 is arranged to, and counterweight uses the movable part 39 of energy disperser 12 in the front of the position that arrives its range, i.e. the not shown arrival of car 7 arrival is topmost moved the front of position.

The lift appliance of said structure, upper terminal safety switch 14, lower terminal end safety switch 15 and car arm 13, being arranged on lifting body is in the vertical projection surface of car 7, in addition, upper terminal safety switch 31, lower terminal end safety switch 32 and counterweight arm 30, being arranged on lifting body is in the vertical projection surface of counterweight 8, so the comparable traditional structure of the cross-sectional area of lift well 1 is little.

In addition, upper terminal safety switch 14, lower terminal end safety switch 15 are fixed on car with on the energy disperser 11, upper terminal safety switch 31, lower terminal end safety switch 32 are fixed on counterweight with on the energy disperser 12, each switch and energy disperser are integrated, the installation exercise of switch and energy disperser is simple, can reduce cost of installation.

Each

arm

13,30 is respectively by being moved up and down by the

guide plate

19,36 of

guide

18,35 guiding, so moving up and down of

arm

13,30 is reliable, stable.

In the above-mentioned example, guide, guide plate and the spring part as energy disperser is described, but also the guide that the guide plate that is fixed with switch and arm is slided up and down, leads can be fixed on lifting body below.This occasion, lifting body descends, the front end face of while arm and the arm carrier butt that is arranged on the bottom surface, hole, the cardinal extremity face of arm is approaching with switch thereupon, butt, switch motion.

Example 2

Fig. 4 is the constructional drawing of the lift appliance of example 2 of the present invention.

In this lift appliance, car directly is fixed on the car 7 with arm 13, and car is directly followed car 7 with arm 13 and moved up and down.

In addition, though do not illustrate, counterweight directly is fixed on the counterweight 8 with arm 30, and counterweight is directly followed counterweight 8 with arm 30 and moved up and down.At this moment, car 7 and counterweight 8 be supported, the lifting on one side of horizontal direction on one side on the guide rail that not shown lift well vertical is provided with, so it is reliable and stable to be fixed on moving up and down of

arm

13,30 on car 7 and the counterweight 8.

The lift appliance of this example is compared with example 1, the

spring

22,37 that does not need to be used to arm 13,30 is resetted, to the

guide

18,35 of these

spring

22,37 guiding, with the

guide plate

19,36 of

arm

13,30 one, simple in structure.

In addition, example 1 disposes the occasion of

spring

22,37 like that, arrives the height of the

spring

22,37 after lowest positions (or counterweight arrival lowest positions) only needs to dispose compression at car.When the command speed of lift appliance little, the stroke of energy disperser 11,12 and highly also reducing then, the height of the spring after the configurable compression shortens.On the other hand, being spaced apart of upper

terminal safety switch

14,31 and lower terminal

end safety switch

15,32 is constant, and be irrelevant with the command speed of lift appliance, so even the command speed of lift appliance reduces, the desired stroke of spring also not too can change.Therefore, the command speed of lift appliance is more little, and the configuration of spring is just difficult more.

By contrast, in this example, no longer need

spring

22,37, thereby this situation can not occur, also can be suitable fully for the elevator of low velocity.

In the above-mentioned example, arm is fixed on the lifting body, energy disperser is fixed in the hole, but also energy disperser directly can be fixed on the lifting body, and arm is fixed in the hole.

Example 3

In this lift appliance, guide plate is on the end of magnet 50 car 7 sides that are fixed on guide 18 with holding device.Guide plate 19 is adsorbed on the magnet 50 by the magnetic force of this magnet 50.

In addition, arm is that magnet 51 is fixed on the end of car with car 7 sides of arm 13 with holding device.Car is adsorbed on the car 7 by the magnetic force of this magnet 51 with arm 13.

Although do not illustrate, counterweight 8 sides also are identical structures.

In this example, car 7 is being gone up the floor stop position most and is being descended most when carrying out lifting in the range of floor stop position, and car remains on the car usefulness energy disperser 11 by the guide plate 19 that is kept by magnet 50 with arm 13.

When car 7 continued to descend above above-mentioned range, car 7 was adsorbed on car with on the arm 13 by magnet 51, and meanwhile, guide plate 19 separates from magnet 50.Then, car is followed the decline of car 7 with arm 13 and is moved down, carries out the action identical with example 1 then.

When car 7 continued to rise above above-mentioned range, counterweight 8 was adsorbed on counterweight with on the arm 30 by magnet, and meanwhile, counterweight is separated from magnet with guide 35.Then, counterweight is followed the rising of car 7 with arm 30 and is moved down, carries out the action identical with example 1 then.

The lift appliance of this example, compare with example 1, do not need to be used to

spring

22,37 that

arm

13,30 is resetted, the occasion that identical with example 2, the descending speed of car 7 is low, the stroke of the movable part of energy disperser 11,12 21,39 is short is also applicable.

In the above-mentioned example, used magnet 50 as guide plate with holding device, but be not limited thereto.Such as, guide plate physically ended with the end card of guide when also guide plate arrived the end of guide, to the guide plate effect down during the external force of direction, and the structure that guide plate descends.

Used magnet 51 as arm with holding device, but be not limited thereto.Such as, also when conflicting with arm, the end of arm lifting body physically engages the structure that is separated from each other when acting on separating force between lifting body and the arm mutually.

Example 4

In this lift appliance, car is fixed on the car 7 with arm 13, and upper terminal safety switch 14, lower terminal end safety switch 15 are fixed on this car with on the arm 13 simultaneously.Be fixed on the side of car with the carrier 52 of upper terminal safety switch 14, lower terminal end safety switch 15 butts with energy disperser 11.

Although do not illustrate, also be same structure for counterweight 8 sides.

The lift appliance of this example is compared with example 1, the

spring

22,37 that does not need to be used to arm 13,30 is resetted, the

guide

18,35 that this

spring

22,37 is led, with the

guide plate

19,36 of

arm

13,30 one, simple in structure.

Do not need to be used to

spring

22,37 that

arm

13,30 is resetted, the occasion that identical with example 2, the descending speed of car 7 is low, the stroke of the movable part of

energy disperser

11,12 21,39 is short is also applicable.

In above-mentioned each example, the occasion of using oleo gear is illustrated, but also bumper.

The possibility of utilizing on the industry

As mentioned above, the present invention is for dwindling the liter that has in the hole that is arranged on the lift well bottom, accepts decline The cross-sectional area of lift well of lift appliance that falls body and absorb the buffer of its impact is useful.

Claims

1. a lift appliance is characterized in that, comprising:

Lift well;

In this lift well, carry out the lifting body of lifting;

Be arranged in the hole of described lift well bottom, accept described lifting body and absorb the energy disperser of its impact;

Be arranged on described lifting body downside, follow the arm that lifting body moves up and down; And

According to the following switch that moves, described lifting body is stopped of this arm,

Described switch and described arm are arranged in the vertical projection surface of described lifting body,

Described energy disperser comprises: the energy disperser body; Be arranged on this energy disperser body around, towards upper and lower to the guide that extends; Be arranged to slidably and be fixed with the guide plate of described arm with respect to this guide above-below direction,

On described guide, be provided with and be used for guide plate holding device that described guide plate is kept, on described arm, be provided with the arm holding device that the arm with described lifting body butt is kept,

At described lifting body is that car is being gone up the floor stop position most and descended most when carrying out lifting in the range of floor stop position, described arm remains on the described guide with holding device and by described guide plate by described guide plate, when described lifting body carries out lifting outside described range, described arm remains on the lifting body with holding device by described arm, and follows lifting body and move up and down.

2. lift appliance as claimed in claim 1 is characterized in that described switch is fixed on the described energy disperser.

3. lift appliance as claimed in claim 2 is characterized in that described arm is arranged on the described energy disperser up and down movably.

4. lift appliance as claimed in claim 1 or 2 is characterized in that described arm is fixed on the described lifting body.

5. lift appliance as claimed in claim 1 is characterized in that, described arm is fixed on the described lifting body, and described switch is fixed on this arm simultaneously.