EP2006242B1 - Ponté élévateur, en particulier pour véhicules - Google Patents

Ponté élévateur, en particulier pour véhicules Download PDF

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Publication number
EP2006242B1
EP2006242B1 EP08158392.4A EP08158392A EP2006242B1 EP 2006242 B1 EP2006242 B1 EP 2006242B1 EP 08158392 A EP08158392 A EP 08158392A EP 2006242 B1 EP2006242 B1 EP 2006242B1
Authority
EP
European Patent Office
Prior art keywords
tubular body
receiving space
medium
line connection
valve
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.)
Not-in-force
Application number
EP08158392.4A
Other languages
German (de)
English (en)
Other versions
EP2006242A2 (fr
EP2006242A3 (fr
Inventor
Johannes Herrmann
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.)
Herrmann AG
Original Assignee
Herrmann 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 Herrmann AG filed Critical Herrmann AG
Priority to JP2008245033A priority Critical patent/JP5276942B2/ja
Publication of EP2006242A2 publication Critical patent/EP2006242A2/fr
Publication of EP2006242A3 publication Critical patent/EP2006242A3/fr
Application granted granted Critical
Publication of EP2006242B1 publication Critical patent/EP2006242B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • 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
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator

Definitions

  • the present invention relates to a device for lifting objects and in particular vehicles.
  • the following invention will be described with reference to a car lift, but it will be understood that the present device is suitable for lifting other objects.
  • Underfloor lifts usually have a piston arrangement with a first cylindrical piston, which is movable relative to a second cylindrical piston and is actuated by a hydraulic drive.
  • a hydraulic agent is usually used in the art, oil.
  • the present invention is therefore based on the object to provide a device for lifting objects, which allows a higher reliability and a higher user-friendliness. This is inventively achieved by a device according to claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.
  • An apparatus for lifting objects, and in particular vehicles, comprises a first tubular body and a second tubular body, the second tubular body being movable relative to the first tubular body in a longitudinal direction of the first tubular body. Furthermore, a first receiving space for a liquid medium is provided in the interior of the first tubular body, and furthermore a second receiving space is provided and a line connection for transporting the liquid medium from the first receiving space into the second receiving space.
  • the device has a supply line in order to supply the first receiving space another medium different from the first medium and the said line connection runs completely within the first receiving space or the second receiving space.
  • tubular bodies are meant in particular but not exclusively pistons that can be extended against each other like a telescope.
  • the liquid hydraulic medium is provided, which can be urged upon exposure to the gaseous medium in the second receiving space.
  • the second receiving space is increased and thus raised the second tubular body.
  • the other medium other than the first medium is a gaseous medium and in particular air.
  • a further medium a medium that does not mix with the first medium.
  • water could be provided as the first medium and oil as the second medium.
  • the conduit connection extends substantially completely within the first or second receiving space, and preferably within the first receiving space.
  • the second receiving space surrounding the first receiving space and the line connection is provided in the space between the outer wall of the first receiving space and an inner wall of the second receiving space and thus in the second receiving space.
  • the line connection is arranged within that tubular body which has the larger cross-section, and preferably within that tubular body which has the smaller cross-section. It should be noted that the exact configuration also depends on which of the two tubular body is designed to be stationary and which as movable.
  • the supply line extends at least partially within the first receiving space.
  • the supply line it would also be possible for the supply line to run, for example, outside the first tubular body, but within the second tubular body, and only open in one end section into a first receiving space, which is arranged, for example, in the first tubular body.
  • the supply line extends from an inlet, such as a valve, substantially entirely within the first receiving space or within the first tubular body.
  • the line connection runs completely within the first receiving space. However, the mouth region of this line connection, which projects into the second receiving space, is disregarded.
  • the line connection is designed as a rigid tube. It should be noted that in this embodiment, the receiving space does not change in terms of its receiving volume and thus the line connection can be performed as a rigid tube. This embodiment brings a lower susceptibility to wear with it.
  • the line connection runs within the liquid medium. This means that the receiving space is filled with the liquid medium and in turn runs the line connection within this liquid medium.
  • the supply line extends within the liquid medium.
  • the line connection and the supply line parallel to each other within the liquid medium.
  • the supply line is preferably designed as a rigid tube.
  • first tubular body is arranged stationary. This means that the first tubular body or the first piston, for example, is embedded in the ground and the second tubular body moves relative to the first tubular body.
  • tubular bodies are also understood as meaning bodies which are closed at their ends. In the context of this description, tubular bodies are generally those bodies which have a cavity in their interior.
  • a valve is arranged at an end portion of the line connection and this valve projects into the first tubular body.
  • This valve thus serves to control the liquid medium with which the first tubular body or hydraulic cylinder is supplied.
  • this valve is arranged at a lower end or at a bottom plate of the tubular body.
  • a second valve is arranged on the supply line.
  • the supply line communicates with a reservoir for the gaseous medium.
  • this is a compressor or the like, which conveys the gaseous medium into the first supply line at a predetermined pressure.
  • the liquid medium contains water.
  • water is possibly used as hydraulic medium with additives which prevent rust formation.
  • the use of water is advantageous over the use of oil, since water is disposed of as hydraulic fluid much less complicated can be regarded as environmentally friendlier.
  • the gaseous medium is air.
  • the present invention is further directed to a lift with at least one device of the type described above.
  • a lift on at least two devices of the type described above which are particularly preferably synchronously controlled.
  • a corresponding lifting platform also has a control valve which controls the supply of the gaseous medium into the supply line.
  • This control valve is preferably arranged separately with respect to the tubular body.
  • the control valve allows on the one hand a supply of the gaseous medium, on the other hand, however, can also be controlled via a control line arranged on the supply line control valve.
  • Fig. 1 shows a schematic plan view of an inventive device 1 for lifting objects.
  • This device has a first tubular body 2 and a second tubular body 4.
  • both tubular body 2, 4 formed as tubes with a cylindrical cross-section.
  • the two tubes 2, 4 are arranged concentrically to one another here.
  • At least the second tubular body 4, but preferably also the first tubular body 2 are made of aluminum, wherein both tubes are preferably extruded parts.
  • the second tubular body 4 has an outer tube 24 and a Inner tube 25 on. Between this outer tube 24 and the inner tube 25 struts (not shown) are arranged and in turn these threads in order thread to attach support elements on the second tubular body 4 can.
  • the second tubular body 4 moves and the first tubular body 2 is stationary or anchored in the ground.
  • a first receiving space 6 for a liquid medium is formed within the first tubular body 2.
  • this liquid medium is particularly preferably water, which is possibly enriched with additives to protect seals and valve body within the device 1.
  • a second receiving space 8 for the liquid medium is formed between the first tubular body 2 and the second tubular body 4.
  • the first receiving space and the second receiving space 8 are separated from each other and are preferably only in fluid communication with one another via a line connection 10.
  • the two tubular bodies 2 and 4 extend into Fig. 1 perpendicular to the plane of the figure upwards.
  • the line connection 10 which is disposed within the first tubular body 2, extends perpendicular to the plane of the figure upwards. Via this line connection 10, the liquid medium can be transported from the first receiving space into the second receiving space (lifting operation) or from the second receiving space into the first receiving space (lowering operation).
  • the reference numeral 12 refers to a supply line to the device from the outside via a supply line 23, a gaseous medium, and in particular air supply.
  • This supply line 12 extends in Fig. 1 perpendicular to the plane of the figure upwards.
  • the gaseous medium can be supplied to the first receiving space 6, and in this way the second tubular body 4 can be raised relative to the first tubular body 2.
  • the liquid medium can reach the line connection 10 via a valve 26 during the lifting process. More specifically, this is in the first receiving space 6 by supplying the gaseous medium under Pressed medium pressed through this opening 22 in the line connection 10 and thus ultimately transported into the second receiving space 8.
  • the valve 26 is a valve which is normally closed and thus prevents flow into and out of the conduit connection 10. Via a control line 28, which in turn is connected to a control valve (not shown), the valve 26 can be actuated.
  • Fig. 2 shows a side view of the device 1 with the valve closed. It can be seen that here the line connection 10 and the supply line 12 are arranged side by side. The respective lower portions of the pipe joint 10 and the supply pipe 12 are fixedly arranged in a bottom plate 32. It can be seen that the supply line 12 projects substantially upwards along the complete receiving space 6 in order to guide air into this area for the purpose of lifting. Of importance here is that the upper end of the supply line is always located above the level of the liquid medium or water 7 within the first receiving space 6. At the upper end of the supply line 12, a cap 18 is housed in a lid 17. The air flowing through the feed line 12 passes into this end cap 18 and from this in turn into the receiving space 6. Thus, this end cap 18 ensures that the air is introduced in any case above the level of the liquid 7 in the first receiving space 6.
  • the second receiving space 8 apart from the line connection 10, substantially completely closed.
  • the second receiving space 8 is within of the second tubular body 4 but formed outside the first tubular body 2.
  • the line connection 10 is not as in Fig. 2 shown exiting upward from the first tubular body 2, but through a side wall 2a of the tubular body.
  • the height of such a passage opening in the first tubular body 2 would also simultaneously determine the maximum extension height of the second tubular body 4.
  • Fig. 3 shows a device 1 with open valve 26. It can be seen that in a bottom 32 of the device and the valve 26 is arranged. About the (in Fig. 1 shown) opening 22 which in Fig. 3 is not shown, the hydraulic fluid 7 (water), enters the interior of the valve 26 and from there during the lifting operation in the line connection 10.
  • the valve 26 has a valve chamber 36 through which the liquid medium can flow.
  • a valve body 34 is provided which can be moved between an open position and a closed position.
  • the reference numeral 27 refers to a spring which causes a closed position of the valve.
  • a control piston 31, when exposed to air, may cause the valve body 34 to transition to the open position.
  • the reference numeral 16 refers to a closure body, which is arranged floating on the liquid 7 within the first receiving space 6. This is particularly preferably a sphere. As the level of liquid 7 falls below a certain level, the floating closure body closes the opening 22 and can thus cause the device to stop and, if necessary, issue an alarm to the user.
  • the hydraulic fluid passes, as mentioned above, into the valve space 36 and from there ultimately into the conduit connection 10.
  • the upper end of the conduit connection 10 passes through the lid 17, which is arranged on the first tubular body 2.
  • a recess 17a is provided within the lid 17 and the upper end of the line connection 10 protrudes slightly from the bottom of this recess. In this case, it is achieved that the recess 17a is not covered in any position of the second tubular body 4 and thus always accessible for operation.
  • the hydraulic medium or the water is introduced at a relatively high altitude level in the second receiving space through the line connection 10, so that advantageously means are provided which prevent the gaseous medium in the line connection 10th can penetrate.
  • Figures 2 - 3 is indicated in each case by a void, that both the first tubular body 2 and the second tubular body 4 may have a substantially greater extent in the longitudinal direction L.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Types And Forms Of Lifts (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Actuator (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Claims (12)

  1. Dispositif (1) pour le levage d'objets, et notamment de véhicules, avec un premier corps tubulaire (2) et un deuxième corps tubulaire (4), le deuxième corps tubulaire (4) étant déplaçable dans une direction longitudinale (L) du premier corps tubulaire par rapport au premier corps tubulaire (2), un premier espace de réception (6) pour un premier fluide liquide (7) étant prévu à l'intérieur du premier corps tubulaire (2) et un deuxième espace de réception (8) étant prévu ainsi qu'un raccordement de conduite (10) pour transporter le premier fluide liquide (7) du premier espace de réception (6) au deuxième espace de réception (8),
    ledit dispositif (1) comporte une conduite d'amenée (12) permettant de conduire vers le premier espace de réception (6) un autre fluide (9), différent du premier fluide (7), et mettre le premier fluide (7) sous pression caractérisé en ce que
    le raccordement de conduite (10) s'étend entièrement à l'intérieur du premier espace de réception (6).
  2. Dispositif (1) selon la revendication 1, caractérisé en ce que
    la conduite d'amenée (12) s'étend au moins partiellement à l'intérieur du premier espace de réception (6).
  3. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    le raccordement de conduite (10) est réalisé comme tuyau rigide.
  4. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    le raccordement de conduite (10) s'étend à l'intérieur du fluide liquide (7).
  5. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    la conduite d'amenée (12) s'étend à l'intérieur du fluide liquide (7).
  6. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    le premier corps tubulaire (2) est disposé de manière fixe.
  7. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce qu'
    une vanne (26) est disposée sur une partie d'extrémité du raccordement de conduite (10), et en ce que ladite vanne (26) pénètre dans le premier corps tubulaire (2).
  8. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce qu'
    une deuxième vanne est prévue sur la conduite d'amenée (12).
  9. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    la conduite d'amenée (12) est reliée à un réservoir pour le fluide gazeux (9).
  10. Dispositif (1) selon au moins une des revendications précédentes, caractérisé en ce que
    le fluide liquide (7) contient de l'eau.
  11. Dispositif selon au moins une des revendications précédentes, caractérisé en ce que
    le fluide gazeux (9) est de l'air (9).
  12. Plate-forme élévatrice comprenant au moins un dispositif (1) selon une des revendications précédentes.
EP08158392.4A 2007-06-23 2008-06-17 Ponté élévateur, en particulier pour véhicules Not-in-force EP2006242B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008245033A JP5276942B2 (ja) 2007-06-23 2008-09-24 車両および他の物体用のリフトプラットフォーム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007029017A DE102007029017B4 (de) 2007-06-23 2007-06-23 Vorrichtung zum Heben von Objekten, insbesondere für Fahrzeuge

Publications (3)

Publication Number Publication Date
EP2006242A2 EP2006242A2 (fr) 2008-12-24
EP2006242A3 EP2006242A3 (fr) 2010-03-17
EP2006242B1 true EP2006242B1 (fr) 2013-10-16

Family

ID=39717610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08158392.4A Not-in-force EP2006242B1 (fr) 2007-06-23 2008-06-17 Ponté élévateur, en particulier pour véhicules

Country Status (5)

Country Link
US (1) US8684141B2 (fr)
EP (1) EP2006242B1 (fr)
JP (1) JP5276942B2 (fr)
DE (1) DE102007029017B4 (fr)
DK (1) DK2006242T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104309636B (zh) * 2014-08-18 2016-03-23 中车青岛四方车辆研究所有限公司 自调整式托头

Family Cites Families (26)

* Cited by examiner, † Cited by third party
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US1488206A (en) * 1921-08-08 1924-03-25 Koenigkramer Frank Actuating mechanism
US1614790A (en) * 1926-06-12 1927-01-18 Stanley M Halstead Elevator
US1744673A (en) * 1927-06-10 1930-01-21 Timothy C Pomeroy Hydraulic jack
US1815907A (en) * 1928-03-24 1931-07-28 Wayne Co Elevator
US1899534A (en) * 1930-05-05 1933-02-28 Curtis Mfg Co Automobile lift
US1864325A (en) * 1930-05-05 1932-06-21 Curtis Mfg Co Supply conduit for piston machines
US1919156A (en) * 1930-05-13 1933-07-18 Jr Thomas A Banning Auto lift and the like
US1975551A (en) * 1931-10-15 1934-10-02 Logette Abraham Isaac Lifting device for motor and other vehicles
US1958960A (en) * 1934-02-10 1934-05-15 William H Warner Hydraulic lift
US2402265A (en) * 1945-02-15 1946-06-18 Globe Hoist Co Vehicle lift
GB640414A (en) * 1948-03-06 1950-07-19 Mavor & Coulson Ltd Improvements in props
US2802457A (en) * 1955-10-19 1957-08-13 Globe Hoist Co Lift apparatus
US2973178A (en) * 1956-10-29 1961-02-28 Schwarz Hermann Kg Two-part metallic mine prop
US3085785A (en) * 1958-09-19 1963-04-16 Adolphe C Peterson Apparatus and hoist means for construction
GB927600A (en) 1963-05-31 1963-05-29 Amalgamated Dental Co Ltd Hoist
US3112676A (en) * 1959-06-16 1963-12-03 Amalgamated Dental Co Ltd Hoist
DE1839580U (de) * 1959-06-16 1961-10-19 Amalgamated Dental Company Ltd Hebeeinrichtung.
US3053050A (en) * 1960-01-21 1962-09-11 Sommerer Erich Device for the lifting of loads
US3051141A (en) * 1960-06-01 1962-08-28 Dura Corp Hydraulic lift
US3447421A (en) * 1964-10-08 1969-06-03 James J Pelouch Vehicle lift
US3567240A (en) * 1969-04-11 1971-03-02 Samuel M Brassington Dual rate jack system for lift trucks
US3744372A (en) * 1972-03-29 1973-07-10 Dresser Ind Semi-hydraulic lift and improved valve therefor
JPS56164208A (en) 1980-05-23 1981-12-17 Nippon Kiki Kogyo Kk Constant-velocity multistage cylinder device
JPH066211B2 (ja) * 1987-05-30 1994-01-26 義光 小沢 空油圧昇降装置
US5601284A (en) * 1996-02-12 1997-02-11 Blackwell; Scott Adjustable basketball goal
DE10349065B3 (de) * 2003-10-22 2005-05-25 Hörnstein, Karin Hydraulische 2-Stempel-Hebebühne

Also Published As

Publication number Publication date
DE102007029017A1 (de) 2009-01-02
DE102007029017B4 (de) 2009-12-17
EP2006242A2 (fr) 2008-12-24
JP5276942B2 (ja) 2013-08-28
EP2006242A3 (fr) 2010-03-17
US8684141B2 (en) 2014-04-01
US20080314689A1 (en) 2008-12-25
DK2006242T3 (da) 2014-01-27
JP2009298590A (ja) 2009-12-24

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