CN1047360C

CN1047360C - Elevator apparatus

Info

Publication number: CN1047360C
Application number: CN95120952A
Authority: CN
Inventors: 圷广人; 箦河原准; 重田政之
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 1994-12-27
Filing date: 1995-12-27
Publication date: 1999-12-15
Anticipated expiration: 2015-12-27
Also published as: GB2296487A; HK63197A; GB9525504D0; CN1132174A; KR960022228A; GB2296487B

Abstract

The elevator apparatus comprises a car (3, Fig 4) supported in a frame (4) via a platform frame 8. The frame has uprights 7A, B and a lower plank (6) comprising spaced beams 6A, B. The emergency stop device is governor actuated and comprises a wedge device 22, 24 gripping guide rails 1. The device is attached to the frame and platform through a reaction force supporting member 17 and, preferably, a moment supporting member 33. The moment supporting member 33 can be attached to the platform frame as shown or to the bottom of the member 17 and the frame members 6A, B (Figs 6 and 7). The member 17 is preferably a thick, rigid plate as shown or both members 17, 33 may be formed from thin sheet steel with bent end portions (39, 40, Fig 8).

Description

Elevator with lightweight safety device

The present invention relates to a kind of elevator, particularly a kind of elevator with lightweight safety device.

The safety device of the prior art in elevator is fixed on the bottom of pod framework with the supporting gondola, and in the face of and stretch to the guide rail of elevator, be as described in the Japanese Utility Model patent application of 50-11249 (1975) or the Japanese Utility Model patent application that publication number is 49-36192 (1974) as publication number.

In above-mentioned safety device, because sponson is subjected to bigger brake load and bears bigger moment of deflection when promptly stopping, therefore, need enough bending stiffness for this safety device of the brake load that acts on sponson, and thickening forms the reinforcing member of safety device, so just the problem that a weight that makes safety device becomes too heavy occurred.Especially in large-scale hypervelocity elevator, become too big problem with regard to the ratio of the weight that has a safety device and gondola total weight.

An object of the present invention is to provide a kind of elevator with lightweight safety device.

To achieve these goals, elevator provided by the invention comprises that a gondola (car) that moves up and down along a pair of vertically arranged guide rail, one are that install in the face of guide rail, be fixed in the safety device of the pod framework of the car (cab) by a bracket supports gondola, it is characterized in that, the supporting member of one antagonistic force is set on the top of safety device, this antagonistic force supporting member is fixed in pod framework, and this safety device is antagonistic force supporting members support thus then.

According to said structure, because safety device is by the antagonistic force supporting members support that is fixed on pod framework, the most of brake load when gondola promptly stops can being born and is distributed to pod framework by the antagonistic force supporting member by the antagonistic force supporting member.As a result, form the thickness of the reinforcing member of safety device and can do thinlyyer, therefore, the weight of safety device just can be low weight.

Fig. 1 is the front view of first embodiment of safeguard device of elevator of the present invention;

Fig. 2 is the cutaway view along the planar interception of Fig. 1 II-II line;

Fig. 3 is the birds-eye view of Fig. 1;

Fig. 4 is the scheme drawing of the whole elevator of the present invention;

Fig. 5 is the gondola lateral plan of elevator of the present invention;

Fig. 6 is and the cooresponding view of Fig. 2 that it illustrates another embodiment of safeguard device of elevator of the present invention;

Fig. 7 is the birds-eye view of Fig. 6;

Fig. 8 is and the cooresponding view of Fig. 1 that it illustrates another embodiment of safeguard device of elevator of the present invention.

An embodiment of safeguard device of elevator of the present invention is described below in conjunction with Fig. 1 to 5.

Shown in Figure 4 and 5, a gondola 2 is directed and can moves up and down along a pair of vertically arranged guide rail 1.Gondola 2 is made up of the pod framework 4 of a car 3 and a supporting car 3.Pod framework 4 is rectangle, and has at the spaced crossbeam 5 of vertical direction and a supporter 6 and a pair of vertical frame spare 7A, the 7B that is connected crossbeam 5 and this supporter 6.Forming this crossbeam and the supporter of pod framework 4 is made up of a pair of frame unit that is parallel to each other.One support 8 is fixed on the supporter of being made up of pair of

frames part

6A, 6B 6, and car 3 is isolated rubber bearing on support by a vibration insulator 9 as vibration.On the other hand, a main push-towing rope rope or rope 10 link to each other with crossbeam 5 with suspention gondola 2.

One governor sheave 11 is installed in the Machine Room that is arranged in elevator hoistway top, and a governor strop 13 is at governor sheave 11 and be installed in tension on the tension pulley block 12 of hoistway bottom.Be connected in governor hawser or rope 13 by a joystick 14A who is rotatably supported in pod framework 4 one sides.Be connected in joystick 14A by an a connection piece 14 that is rotatably supported in pod framework 4.Attaching parts 14 almost extends on the whole length of crossbeam 5 width, and the top ends of lifting bar 15A, the 15B that hangs along vertical frame spare 7A, 7B pivotally is connected with two ends of attaching parts 14 respectively.Safety device 16 is installed mutually face-to-face at the end portion of

lifting bar

15A, 15B.

Safety device 16 as shown in Figures 1 to 3 is bearing on the frame unit of forming pod framework 4 by an antagonistic force supporting member 17.Antagonistic force supporting member 17 has a groove 17G (Fig. 3) in the face of guide rail 11, and has the slab that is enough to resist the rigidity of bigger brake load by one and make.The antagonistic force supporting member of being made by slab 17 is arranged between frame unit 6A, the 6B of supporter 6, and its top surface contacts with the bottom side of support 8.With screw 21 both sides of antagonistic force supporting member 17 are fixed on frame unit 6A, the 6B.

Safety device 16 is bearing in the bottom of fixing as mentioned above antagonistic force supporting member 17.The structure of supporting is as follows: the basal surface of the link of being made by thin plate 18 being fixed and hung on antagonistic force supporting member 17 with bolt 19.The one supporting member 20A that is made by thin plate is connected in the suspended end of link 18 with a bolt 20Ab.The thickness of the plate of link 18 and supporting member 20A is thinner, because all parts of the safety device 16 that they will be described below supporting, thin thickness is also enough.

Parts 20 are to be used for protecting the lifting bar 15A that will be described below, a sweep 15E and a pair of voussoir 22 as braking element of 15B bottom, or are used to connect other parts, but it is not the parts that directly constitute safety device 16.

The lower end of lifting bar 15A, the 15B that is hanging is placed between link 18, supporting member 20A and the guide rail 1, forms towards the rectangular sweep 15E of guide rail 1 lateral bending in the lower end.Sweep 15E has a groove 15G in the face of guide rail 1, and in the mutual aspectant position of guide rail 1 both sides a pair of voussoir 22 is arranged.

Voussoir 22 is parallel to guide rail surface in the face of guide rail one side, and the opposite side of voussoir 22 is that its top is to guide rail 1 side bevelled smooth surface.

On the inclined surface of a pair of

voussoir

22,22, have respectively a plurality of that connecting, with surperficial contacted

roller

23,23, these rollers are kept with guide 24,24.

Guide

24,24 is installed in supporting member 20A and goes up and to contact with a plurality of rollers 23, and have one with the parallel inclined surface of voussoir 22 inclined surfaces.Guide 24 is a upright surface at the opposite side of roller mating surfaces.The guide plate 25 of restriction voussoir 22 sense of motions is arranged on the guide 24.

In the vertical surface side of

guide

24,24, a wrapper plate 27 and a backing plate 26 of regulating the gap between brake component 22 and the guide rail 1 are arranged, this backing plate 26 and wrapper plate 27 are arranged on the partly inboard of 28 liang of legs of a U-shaped elastic body.Two legs of

guide

24,24 and U-shaped elastic body 28 couple together with bolt 29, and two legs of U-shaped elastic body 28 and wrapper plate 27 pines are incorporated into bolt 29.One elastic component 30 a for example spring is installed between two legs of bolt 29 heads and U-shaped elastic body 28

guide

24,24 is pulled to the interior side direction of 28 liang of legs of U-shaped elastic body.Form a concave surface at two inboard legs of U-shaped elastic body 28 and a mating surfaces between the wrapper plate 27, form the convex surface that curvature is identical with concave surface at another mating surfaces, even so that move in the gap between two legs of U-shaped elastic body 28,

voussoir

22,22 is to become to be parallel to each other in the face of the total surface of guide rail surface.

Guide finger 31 protrudes in

guide

24,24 upper and lower sides respectively up down.In the face of the position of guide finger 31, place by the upper and lower side of attaching parts 18 towards the bent sweep 18E that forms of guide rail 1 lateral bending and towards the extendible portion of guide rail 1 side extension supporting member 20A.Have a slotted hole 32 its length to extend on the direction of folder guide rail 1 at sweep 18E, guide finger 31 can pass it.

With bolt 34 a moment supporting member 33 is fixed in the top of antagonistic force supporting member 17 at guide rail 1 opposite side, the both ends of moment supporting member 33 laterally are fixed on the pair of

frames part

6A, 6 of supporter 6 by bolt 35.

The mechanism that below description is had the safety device of top structure.When gondola 2 moved downwards with the abnormal speed that surpasses normal speed for a certain reason, governor sheave 11 detected abnormal speed and stops operating to stop the motion of governor hawser 13.When gondola 2 continued operation downwards after 13 stop motions of governor hawser, joystick 14A rose with rotating connector 14.Because the rotation of attaching parts 14, the lifting bar 15A, the 15 raised voussoirs 22 that are positioned at lifting bar 15A, 15 lower end sweep 15E that make that are connected in attaching parts move up.By the motion of voussoir 22, two voussoirs 22 are pushed between the raceway surface of guide rail 1 and guiding

piece

24,24 to force to stop further operation downwards of gondola 2.

As shown in Figure 2, by gondola 2 be forced to stop brake load _bAct on the antagonistic force supporting member of guide rail 1 side, this antagonistic force supporting member be subjected to one with the contact position of support 8 and the top surface of antagonistic force supporting member 17 as a fulcrum P than macrobending moment.Yet antagonistic force supporting member 17 is owing to be that slab structure than macrobending rigidity forms and both sides are fixed on pair of frames parts 6A, the 6B by having, thereby can not be out of shape.In addition, the antagonistic force supporting member leaves fulcrum P in its position, an end of guide rail 1 opposite side and compares brake load _bThe position of effect is left fulcrum P and is come far, and this end is fixed on pair of frames parts 6A, the 6B by moment supporting member 33.Therefore, the distortion of antagonistic force supporting member 17 is by a less antagonistic force _rAnd stopped.

As mentioned above, owing to act on the brake load of antagonistic force supporting member 17 _bCan be distributed on the pod framework 4, thus do not need to form whole safety device with slab, thereby, can reduce the weight of safety device.

On the other hand, along with brake component 22 move up and the pressure of gondola 2 stops,

guide

24,24 moves in the direction of leaving guide rail 1 by two opening of leg of U-shaped elastic body 28.At this moment, stop

guide

24,24 to fall towards the guide finger 31 that stretches out up and down and slotted hole 32 from supporting member 20A.

Though the moment supporting member 33 of embodiment is the bodies of rod with square-section in the above, but owing to act on the antagonistic force of moment supporting member is less as mentioned above, so the parts with L shaped cross section or U-shaped cross section that form by bent flat plate or common material also can adopt.

Fig. 6 and Fig. 7 show another embodiment, wherein, one moment supporting member 37 is connected in the bottom surface of antagonistic force supporting member 17 and dangles downwards at the opposite side of guide rail 1, and with bolt 38 the downward overhang of moment supporting member 37 is fixed on pair of frames part 6A, the 6B.Other structures are identical with top embodiment, and same parts is represented with identical numbering in the drawings.Adopt this structure, can obtain the effect identical with top embodiment.

Fig. 8 shows another embodiment, and wherein an antagonistic force supporting member 39 forms by bending a steel plate, suitably is arranged on the position of brake load or moment loading by the reinforcing member 40 that forms of bending steel plate.Other structure is identical with top embodiment, and in the drawings, identical parts also all use identical numbering to represent.

Because the structure that has adopted the rigidity of antagonistic force supporting member 39 to provide by bending one steel plate as mentioned above, the embodiment as antagonistic force supporting member 17 compares with above-mentioned usefulness one slab, and the weight of the safety device of this embodiment can further reduce.

As the above, because the antagonistic force supporting member is fixed in the parts of composition pod framework with the supporting safety device, so the brake load that acts on safety device is accepted by the antagonistic force supporting member, is distributed to pod framework then.As a result, form the thickness of the reinforcing member of safety device and can do thinlyyer, thereby make the weight of safety device become lighter.

As mentioned above, according to the present invention, can be made into the lighter elevator of its safety device weight.

Claims

1. the elevator with lightweight safety device comprises gondola, a safety device in the face of described guide rail installation that moves up and down along a pair of vertically arranged guide rail, it is characterized in that,

Safety device is arranged between the pair of frames part, this is to the supporter of frame unit formation one by the pod framework of the car of bracket supports gondola, the supporting member of one antagonistic force is set on the top of described safety device, this antagonistic force supporting member is fixed in described pod framework and supports safety device, and the antagonistic force that the work of safety device is caused is delivered on the pod framework by the antagonistic force supporting member.

2. an elevator as claimed in claim 1 is characterized in that,

The sidepiece of described antagonistic force supporting member is fixed on the supporter of described pod framework.

3. elevator as claimed in claim 2 is characterized in that, the top surface of the supporting member of described antagonistic force is connected with the bottom surface of described support.

4. elevator as claimed in claim 2 is characterized in that, described supporter has the frame unit structure at an interval to form with a pair of mutually face-to-face.

5. elevator as claimed in claim 2 is characterized in that, described antagonistic force supporting member is installed between the described pair of frames part and is fixed on two frame units.

6. as each described elevator in the claim 2,3,4 and 5, it is characterized in that described antagonistic force supporting member is made by its thickness plate thicker than described pod framework.

7. elevator as claimed in claim 1, it is characterized in that, on the top of described safety device described antagonistic force supporting member is set integratedly, the sidepiece of this antagonistic force supporting member is fixed on the supporter of described pod framework, is fixed in described supporter at the described antagonistic force supporting member of guide rail opposite side by a moment supporting member.

8. elevator as claimed in claim 7 is characterized in that, the top surface of the supporting member of described antagonistic force is connected with the bottom surface of described support.

9. as each described elevators of claim 7 and 8, it is characterized in that, described safety device comprises the brake component supporting member of the brake component that a supporting promptly stops and the attaching parts that connects described antagonistic force supporting member and described brake component supporting member, and described brake component supporting member and described attaching parts form by flat steel plate.