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EP0955262A1 - Hydraulischer Aufzug - Google Patents

Hydraulischer Aufzug Download PDF

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Publication number
EP0955262A1
EP0955262A1 EP99108943A EP99108943A EP0955262A1 EP 0955262 A1 EP0955262 A1 EP 0955262A1 EP 99108943 A EP99108943 A EP 99108943A EP 99108943 A EP99108943 A EP 99108943A EP 0955262 A1 EP0955262 A1 EP 0955262A1
Authority
EP
European Patent Office
Prior art keywords
car
cylinder
support plate
telescopic
jack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99108943A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eileen W. Rossman
Karl B. Orndorff
Scott C. Conrey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP99108943A priority Critical patent/EP0955262A1/de
Publication of EP0955262A1 publication Critical patent/EP0955262A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • F15B15/165—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type with synchronisation of sections

Definitions

  • the invention relates to a hydraulic elevator according to the preamble of patent claim 1.
  • Such lifts are already known. Depending on the type of attachment of the conveyor cage to the hydraulic jack, they can be assigned to three different designs.
  • the car rests on a platform at the front end of the jack.
  • a disadvantage of this configuration is the large space requirement of the retracted jack.
  • the jack in the so-called backpack arrangement runs behind the car and engages the upper part of a frame that carries the car.
  • the attachment point is specified by the prescribed height of the upper frame part. Consequently, depending on the car type and the specified mounting height of the upper frame part, a jack with a correspondingly long cylinder is necessary. In some cases, an additional extension of the cylinder is used or a cylinder with excess length is selected to meet the mounting conditions.
  • a support frame together with the conveyor basket form a unit that is only preassembled at the place of use.
  • Two lateral guide elements are connected to the supporting frame at the upper end by a cross member.
  • Two telescopic jacks are attached to the crossmember and the conveyor cage above them are housed together with the guide elements on opposite sides in indentations of the cabin walls.
  • the pistons of the lifters are firmly connected to the crossmember and the lower end of the cylinders is screwed to the side projections of the conveyor basket floor. Since the piston is held on the crossmember, the cylinder and with it the conveyor basket attached to it lifts when pressure is applied.
  • this hydraulic elevator drive saves recesses below the bottom floor and a larger drive-over height at the upper end of the lifting distance, it has the disadvantage that it is only suitable for elevator systems with a short lifting distance.
  • the hydraulic jacks, whose cylinders must at least correspond to the length of the intended stroke, are also particularly complex.
  • the invention is based on the technical problem of demonstrating an elevator installation with a hydraulic drive, which is of simple construction and requires little installation effort regardless of the length of the stroke distance to be operated.
  • the essence of the invention is that the hydraulic jack protrudes through the car floor into the car, the jack and car being connected to one another on the car floor. Depending on its length, depending on the length of the stroke, the lifter can thus protrude in the retracted state, either into the car or beyond the car. In this way lifters with a longer compression length and consequently an additional lifting distance can be used, whereas hydraulic applications with cylinder lengths that are smaller than those previously required for fastening to the car can be selected for applications with a short lifting distance. As a result, a lifter selection that is independent of the installation length is now possible, with cylinder extensions previously required being dispensed with, and costs being saved as a result.
  • the fastening device comprises a support plate which is arranged essentially at right angles to the longitudinal axis of the cylinder and is fixed in position on the cylinder in the stroke direction.
  • the support plate can be particularly simple on Cylinder are mounted and attached if it is provided with a central recess approximately corresponding to the cross-sectional area of the cylinder and only needs to be pushed onto the cylinder.
  • Guide means have proven to be very helpful for an exact vertical alignment of the support plate with respect to the longitudinal axis of the cylinder.
  • These can be designed, for example, as a pipe socket, which is arranged on the one hand coaxially to the recess and is connected on the end face to the support plate and on the other hand is pushed onto the cylinder to match the diameter.
  • a weight-saving and equally inexpensive version of the support plate is a welded construction in which available semifinished products can be used and the required rigidity is achieved by means of elements on the plate side facing away from the car for stiffening the structure in the form of ribs.
  • a lifter is provided with two or more pistons which can be telescopically extended from a cylinder and is equipped with a mechanical synchronizing device known per se, which forces evenly divided partial strokes between successive telescopic parts in each stroke position .
  • a mechanical synchronizing device known per se, which forces evenly divided partial strokes between successive telescopic parts in each stroke position .
  • free first ends of connecting means of the synchronizing device are likewise guided through the recess in the car floor and the car and are fixed in place at a suitable height.
  • the usual storage or fastening points on the shaft walls are no longer required.
  • the synchronizing device makes do with an embodiment of the invention in which all free ends of the connecting elements are pulled through the car to the upper end of the lifting path and are supported there on a cross member.
  • the crossmember connects two guide rails of the car, which are arranged on the side of the telescopic jack.
  • This embodiment of the multi-level elevator is also combined into a structural unit that is delivered preassembled and only needs to be set up.
  • Another embodiment is particularly compact with a synchronization device and a special arrangement of the toothed pulleys or pulleys belonging to this device, over which the connecting means run. It is intended that the axes of these disks form an acute angle when viewed in the horizontal plane with an imaginary connecting line drawn between the two lateral guide rails. With appropriate guidance of the connecting means, this measure ensures that the distance of the free first ends led upwards through the car to the telescopic jack can be significantly reduced and therefore the recess in the car floor and the entire passenger channel can be dimensioned smaller.
  • FIG. 1 shows a hydraulic elevator system with a self-supporting car 1.
  • a telescopic door 2 is attached to the front of the car 1, which can be laterally displaced or retracted by means of an overlying door drive 3, with appropriate actuation in the direction of the arrow 4, or can be extended again counter to the arrow 4.
  • the complete car 1 is suspended between two guide rails 5, 6 arranged on opposite sides and fixedly connected to the building (not shown) and can be moved in the longitudinal direction with the aid of a telescopic jack 9 over the lifting distance.
  • the telescopic jack essentially consists of a cylinder 10, an intermediate piston 11 and an end piston 12, the intermediate piston 11 and the end piston 12 being telescopically extendable from the cylinder 10.
  • the telescopic lifter 9 is a so-called synchronous telescopic lifter, which is equipped with a synchronizing device, which in each stroke position forces evenly divided partial strokes between successive telescopic parts 10, 11, 12 and which is described in more detail below in connection with FIG. 2 .
  • the front end of the end piston 12 of the telescopic jack 9 is mounted on the shaft bottom 7 via a jack bracket 8 and extends essentially parallel to the guide rails 5, 6. Its cylinder 10 extends in the Area of the door 2 through the front part of the car 1 and, depending on the required length, freely projects freely beyond the car 1.
  • the car 1 lies with the underside of its car floor 14 on the support plate 15 and is screwed to it by means of screws 16.
  • insulation material can be inserted between the support plate 15 and the car floor in order to dampen the transmission of vibrations to the car.
  • Wheel plug screws 16 with a self-centering screw head and anti-rotation device are particularly advantageous for this purpose.
  • the centering on the head of the screw 16 prevents any play in the plug-in holes when screwing tight, as a result of which the telescopic jack 9 is automatically aligned with respect to the conveyor basket 1 and the guide rails 5, 6.
  • the support plate 15 is welded to the cylinder 10, at the end facing the shaft floor 7, or is firmly connected to it in another suitable manner.
  • the mounting height of the support plate 15 depends on the depth of the intended passage or the shaft depth, the lifting speed of the elevator and the number of telescopic piston stages 12, 11, etc.
  • the support plate 15, as shown in FIG. 2, is designed as a welded construction in which a rectangular plate 21 is provided in the center with a circular opening (not shown), the diameter of which corresponds to the cylinder diameter 20.
  • a pipe socket 18 is welded on the end face coaxially to the opening and serves as a guide for the vertical alignment of the support plate 15 with respect to the cylinder longitudinal axis 17. Furthermore points the support plate 15 ribs 19, which stiffen the plate 21 towards the pipe socket 18.
  • FIG. 2 shows a section of the synchronous telescopic lifter 9 with the synchronization device already mentioned, which in the illustrated embodiment connects the telescopic parts, namely, the cylinder 10, the intermediate piston 11 and the end piston 12 to one another by means of two so-called 2: 1 hangers.
  • the two hangers are constructed identically, but attached to the telescopic jack 9 on different sides.
  • Each hanger consists of a rope 22 (or a chain or the like), of which a first end 23 is fixed to the sleeve 24 of the cylinder 10 and which runs over a rope pulley 25 and is thereby deflected by 180 degrees and also essentially vertically according to the invention the car floor 14 and the conveyor cage 1 through to a cross member 27 at the upper end of the lifting path, where the second rope end 35 is attached.
  • the cross member 27 is selected, for example, as an L-profile support and forms a fixed connection between the guide rails 5, 6. Due to the connection via the cable 22, the intermediate piston 11 can only extend by half of this stroke distance for any given stroke distance of the cylinder 10. Consequently, the partial strokes between the successive telescopic parts 10, 11, 12 are the same in each stroke position.
  • the attachment of the second rope ends 35, 35a to the cross member 27 represents a simplification compared to existing methods.
  • the cable pulleys 25 and 25a arranged opposite one another on the sleeve 28 of the intermediate piston 11 are not on axes of rotation which are axially aligned with one another 26, 26a, but their axes 26, 26a enclose an acute angle 32 in the horizontal plane with an imaginary connecting line 31 drawn between the two lateral guide rails 5, 6.
  • This arrangement of the rope sheaves 25, 25a makes it possible to guide the rope ends running through the car 1 to the cross member 27 closer along the telescopic jack and thus to save space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP99108943A 1998-05-08 1999-05-05 Hydraulischer Aufzug Withdrawn EP0955262A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99108943A EP0955262A1 (de) 1998-05-08 1999-05-05 Hydraulischer Aufzug

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98108381 1998-05-08
EP98108381 1998-05-08
EP99108943A EP0955262A1 (de) 1998-05-08 1999-05-05 Hydraulischer Aufzug

Publications (1)

Publication Number Publication Date
EP0955262A1 true EP0955262A1 (de) 1999-11-10

Family

ID=8231896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108943A Withdrawn EP0955262A1 (de) 1998-05-08 1999-05-05 Hydraulischer Aufzug

Country Status (12)

Country Link
US (1) US6098759A (pt)
EP (1) EP0955262A1 (pt)
JP (1) JP2000203777A (pt)
CN (1) CN1235117A (pt)
AR (1) AR019276A1 (pt)
AU (1) AU749841B2 (pt)
BR (1) BR9902067A (pt)
CA (1) CA2271225C (pt)
MY (1) MY121061A (pt)
NZ (1) NZ335366A (pt)
SG (1) SG75168A1 (pt)
ZA (1) ZA993144B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7010221B2 (en) 1999-10-08 2006-03-07 Arizant Healthcare Inc. Intravenous fluid warming cassette with stiffening member, fluid container and key mechanism

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6659231B2 (en) 2002-03-12 2003-12-09 Inventio Ag Self-balancing synchronization assembly for a hydraulic elevator
EP1510493A1 (de) * 2003-08-12 2005-03-02 Inventio Ag Aufzugsanlage mit belastungsabhängigem Tragmittelfixpunkt
CN107010512B (zh) * 2009-03-13 2019-12-03 奥的斯电梯公司 支承导轨的电梯系统门框
US9561934B2 (en) 2009-03-13 2017-02-07 Otis Elevator Company Elevator system with guide rail bracket
US10017358B2 (en) 2014-06-10 2018-07-10 Thyssenkrupp Elevator Corporation Hydraulic elevator system and method
CN105197735A (zh) * 2015-10-23 2015-12-30 北京安泰鸿源电梯设计有限公司 一种轿厢系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE96535C (pt) *
US3065738A (en) * 1961-03-06 1962-11-27 Esco Elevators Inc Hydraulic elevator jack units
CH463745A (de) * 1968-01-31 1968-10-15 Gebauer & Cie Hydraulischer oder pneumatischer Gleichlauf-Teleskopstempel
US3954157A (en) * 1974-08-16 1976-05-04 Dover Corporation Elevator lifting frame
US4316316A (en) * 1980-07-28 1982-02-23 Westinghouse Electric Corp. Shipping assembly for a hydraulic jack
GB2104477A (en) * 1981-08-24 1983-03-09 Dover Corp Hydraulic elevator installations

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US304823A (en) * 1884-09-09 hutchinson
US1060907A (en) * 1912-08-19 1913-05-06 Theodore J Kirn Plunger-elevator.
US1620305A (en) * 1926-10-04 1927-03-08 James M Koford Elevator
FR717693A (fr) * 1930-05-27 1932-01-12 Dispositif élévateur
US3650356A (en) * 1969-12-18 1972-03-21 Rchard L Brown Hydraulically-actuatable elevator system
US3942458A (en) * 1974-12-19 1976-03-09 Mcallister Brothers Inc. Elevating pilothouse
US4206684A (en) * 1975-08-19 1980-06-10 Gosney James A Hydraulic jack
JPS5251648A (en) * 1975-10-20 1977-04-25 Hitachi Ltd Hydraulic elevator
US4041845A (en) * 1975-11-20 1977-08-16 Westinghouse Electric Corporation Hydraulic elevator apparatus
US4201053A (en) * 1978-11-06 1980-05-06 Dover Corporation Telescopic cylinder automatic synchronizer
US4225014A (en) * 1978-11-28 1980-09-30 The Texacone Company Self-aligning elevator connection
US4361208A (en) * 1980-12-22 1982-11-30 Westinghouse Electric Corp. Modular elevator car
US4361209A (en) * 1980-12-22 1982-11-30 Westinghouse Electric Corp. Elevator system
US4479633A (en) * 1982-08-19 1984-10-30 The Marmac Company Telescopic differential column hydraulic cylinder
US4667775A (en) * 1986-04-30 1987-05-26 Westinghouse Electric Corp. Hydraulic elevator system
FI100962B (fi) * 1994-06-14 1998-03-31 Kone Oy Hydraulihissin ripustusjärjestely

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE96535C (pt) *
US3065738A (en) * 1961-03-06 1962-11-27 Esco Elevators Inc Hydraulic elevator jack units
CH463745A (de) * 1968-01-31 1968-10-15 Gebauer & Cie Hydraulischer oder pneumatischer Gleichlauf-Teleskopstempel
US3954157A (en) * 1974-08-16 1976-05-04 Dover Corporation Elevator lifting frame
US4316316A (en) * 1980-07-28 1982-02-23 Westinghouse Electric Corp. Shipping assembly for a hydraulic jack
GB2104477A (en) * 1981-08-24 1983-03-09 Dover Corp Hydraulic elevator installations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7010221B2 (en) 1999-10-08 2006-03-07 Arizant Healthcare Inc. Intravenous fluid warming cassette with stiffening member, fluid container and key mechanism

Also Published As

Publication number Publication date
CN1235117A (zh) 1999-11-17
AU749841B2 (en) 2002-07-04
US6098759A (en) 2000-08-08
ZA993144B (en) 1999-11-05
MY121061A (en) 2005-12-30
AU2701399A (en) 1999-11-18
JP2000203777A (ja) 2000-07-25
SG75168A1 (en) 2000-09-19
AR019276A1 (es) 2002-02-13
CA2271225C (en) 2006-11-14
BR9902067A (pt) 2000-02-22
NZ335366A (en) 2001-01-26
CA2271225A1 (en) 1999-11-08

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