EP4361083A1 - Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung - Google Patents

Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung Download PDF

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Publication number
EP4361083A1
EP4361083A1 EP22203305.2A EP22203305A EP4361083A1 EP 4361083 A1 EP4361083 A1 EP 4361083A1 EP 22203305 A EP22203305 A EP 22203305A EP 4361083 A1 EP4361083 A1 EP 4361083A1
Authority
EP
European Patent Office
Prior art keywords
air bellow
plate
air
connecting plate
lifting frame
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.)
Pending
Application number
EP22203305.2A
Other languages
English (en)
French (fr)
Inventor
Alexander Stolzenbach
Thomas Keller
Jan Smolarkiewicz
Vitalij Stel
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.)
Herkules Hebetechnik GmbH
Original Assignee
Herkules Hebetechnik GmbH
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 Herkules Hebetechnik GmbH filed Critical Herkules Hebetechnik GmbH
Priority to EP22203305.2A priority Critical patent/EP4361083A1/de
Publication of EP4361083A1 publication Critical patent/EP4361083A1/de
Pending legal-status Critical Current

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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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/35—Inflatable flexible elements, e.g. bellows

Definitions

  • the present invention relates to an air bellow device for a vehicle lifting frame and a vehicle lifting frame comprising an air bellow device. Particularly, the present invention relates to an air bellow device which is pneumatically operated.
  • Vehicle lifting frames are commonly present in car shops or other work shops where cars need to be lifted for performing maintenance and service of the cars, especially to the undercarriage of the cars.
  • a vehicle lifting frame which has raised a car makes it possible for a person, for example a mechanic, to perform necessary operations towards the undercarriage of the car and the person can maintain a comfortable working position while working on the car.
  • the vehicle lifting frame is exposed to heavy loads which can affect how fast a car can be lifted to a desired height by the vehicle lifting frame.
  • Air bellow technique has proven to be a good and reliable technique to use with vehicle lifting frames.
  • air bellows are inflated with air whereby they within a short time period are being expanded and affecting the vehicle lifting frame to lift the car to the desired height. Frequent use over time will expose the vehicle lifting frame to wear as a result from the lifting and lowering of cars. The wear results in that the air bellow device must be replaced by a new air bellow device. Replacement of an air bellow device is normally time consuming and affect the work flow in the car shop.
  • a problem with present technology relating to air bellow devices and vehicle lifting frames is that air bellows often are secured and connected to the vehicle lifting frame with glue in combination with screws. When glue is not part of the fixation method, it is common that air bellows are arranged and secured in the vehicle lifting frame by use of complex and multiple fixation elements.
  • a problem with the above fixation technologies and methods to connect the air bellow device to the vehicle lifting frame is that they are both time consuming and expensive when it comes to replace the air bellow device.
  • Another problem which may emerge during the replacement process is that other business operations within an organisation or company which relies on the operation and functionality of the vehicle lifting frame may not be able to operate as planned.
  • An object of the present invention is to provide an air bellow device for a vehicle lifting frame and a vehicle lifting frame comprising an air bellow device which aims are to overcome the above mentioned problems.
  • a further object of the invention is to provide an air bellow device for a vehicle lifting frame which will facilitate assembly and maintenance compared to those of the prior art.
  • the present invention is described as an air bellow device for a vehicle lifting frame, which air bellow device comprises a first connecting plate, a second connecting plate, a first air bellow, and an air intake.
  • the air bellow is arranged between the first connecting plate and the second connecting plate, which first connecting plate comprises a first plate zone which is arranged with a first upper connecting surface, which first upper connecting surface is arranged around a top aperture arranged in the first plate zone.
  • the second connecting plate comprises a second lower connecting surface.
  • the first upper connecting surface and the second lower connecting surface are substantially arranged towards the air bellow arranged between the upper connecting surface and the second lower connecting surface.
  • the first air bellow comprises a first lower opening with a first lower flange, which first lower flange is connected to the first upper connecting surface.
  • the first connecting plate comprises a second plate zone, which second plate zone comprises a first upper free surface which is arranged to face in a same direction as the first upper connecting surface and which first upper free surface comprises the air intake.
  • the position of the air intake has the effect that the vehicle lifting frame can obtain a low height when the air bellow device is deflated.
  • the low height of the vehicle lifting frame has the effect that cars with low ground clearance, for example sport cars, easily can position them over the vehicle lifting frame to then be lifted by the vehicle lifting frame for maintenance or service.
  • the second plate zone comprises a duct which is arranged to communicate with the air intake and the top aperture.
  • the first connecting plate is a sandwich construction and comprises a top plate, a middle plate, and a bottom plate.
  • the three plates are placed on top of each other forming the sandwich construction.
  • the sandwich construction has the effect that strength and rigidity of the first connecting plate is increased compared to if the first connecting plate would have been made of one solid piece of material.
  • a further effect is that the sandwich construction facilitates manufacture compared to if the first connecting plate would have been manufactured from one piece of material.
  • the top aperture is arranged in the top plate and is arranged to communicate with the first lower opening.
  • the first lower opening is arranged in the air bellow and is connected with the top plate.
  • An effect of the top aperture is to cooperate with the first lower opening and with a middle aperture which is arranged in the middle plate.
  • the middle plate comprises a slot which is arranged in the middle plate in the second plate zone and extends from the middle aperture.
  • a second air bellow is arranged between the first air bellow and the second connecting plate. Further, the second air bellow comprises a second lower flange which is arranged to connect with a first upper flange which is arranged on the first air bellow. In a further embodiment, a third air bellow is arranged between the second air bellow and the second connecting plate. To this, the third air bellow comprises a third lower flange which is arranged to connect with a second upper flange which is arranged on the second air bellow.
  • the air bellow device comprises a stabilising arm, which stabilising arm comprises a first end and a second end, which first end comprises a holding element which is arranged to connect with an element which is arranged between two adjacent air bellows, and which second end is adopted to releasably connect to a platform of the vehicle lifting frame.
  • the holding element is arranged to connect around a circumference where two adjacent air bellows are connected to each other.
  • the second end is T-shaped and adopted to be releasably connected to two connecting joints which are arranged on the platform.
  • An effect that the second end is T-shaped is that stability and rigidity of the stabilising arm is increased. Because the stabilising arm is connected to the two connecting joints, the stabilising arm can only pivotably move around the connecting joints in either upgoing or downgoing movements.
  • the first connecting plate comprises a first lower surface which is arranged with first connecting elements adopted to connect to a support arrangement of the vehicle lifting frame with form fitting.
  • the form fitting connection between the first connecting plate and the support arrangement in the vehicle lifting frame results in that time needed for replacing the air bellow device during service and maintenance can be reduced.
  • the second connecting plate comprises a second upper surface which is arranged with a second connecting element adopted to connect the upper surface to an underside of a platform of the vehicle lifting frame.
  • An effect of the second connecting element is that it attaches and secures the air bellow to the vehicle lifting device whereby the air bellow device is secured in its position during raising and lowering of the platform.
  • a vehicle lifting frame according claim 16 comprising an air bellow device and which air bellow device has been described above.
  • Fig 1 illustrates a view of a vehicle lifting frame 2 comprising an air bellow device 1.
  • the vehicle lifting frame 2 comprises a platform 34, a first scissor linkage 43, a second scissor linkage 44, and a base 45.
  • the platform 34 comprises an underside 41.
  • the first and the second scissor linkage 43, 44 are connected to the underside 41.
  • Each scissor linkage 43, 44 includes two bars which on a position half the distance between their respective ends are pivotably connected to each other.
  • the first and the second scissor linkage 43, 44 are arranged with the base 45, which base 45 is arranged opposite the platform 34.
  • the platform 34 and the base 45, with respect to each other, have substantially similar length and width.
  • a support arrangement 38 is located between the first and the second scissor linkage 43, 44 .
  • the air bellow device 1 is arranged between the support arrangement 38 and the underside 41 of the platform 34.
  • the platform 34 with respect to the base 45, is arranged to move in a vertical direction when the air bellows 5, 6 are inflated or deflated with air.
  • Fig 2 illustrates a cross view of the air bellow device 1.
  • the air bellow device 1 comprises a first, second and third air bellow 5, 6, 25. Further, the air bellow device 1 comprises a first connecting plate 3, a second connecting plate 4, and a stabilising arm 30.
  • the air bellows 5, 6, 25 are arranged between the first connecting plates 3 and the second connecting plate 4.
  • the stabilising arm 30 comprises a first end 31 and second end 32. The first end 31 is arranged with a holding element 33 which is arranged to connect to an area with the air bellow device 1 where two adjacent air bellows 5, 6 are connected to each other.
  • the second end 32 of the stabilising arm 30 is T-shaped ( Fig 2 is a cross view whereby only half the stabilising arm is visualised in the figure).
  • the T-shaped second end 32 is connected to two connecting joints 35a, 35b which are arranged on the underside 41 of the platform 34 (See Fig 3 ). Because the stabilising arm 30 is connected to the two connecting joints 35a, 35b, the stabilising arm 30 is limited to pivot around the two connecting joints 35a, 35b in either an upgoing or downgoing direction. Any other movements, for example sideways, are thus prevented. The upgoing and downgoing pivoting movements of the stabilising arm 30 follows the platform 34 vertical elevation.
  • the first air bellow 5 comprises a first upper opening 9 and a first lower opening 11.
  • a first upper flange 10 arranged around the first upper opening 9 .
  • a first lower flange 12 arranged around the first lower opening 11 .
  • Connection means 15 are arranged to connect the first lower flange 12 with a first connecting surface 7 which is arranged on the first connecting plate 3.
  • the second air bellow 6 comprises a second upper opening 29 and a second lower opening 13.
  • a second upper flange 28 arranged around the second upper opening 29 .
  • a second lower flange 14 arranged around the second lower opening 13 .
  • Connection means 15 are arranged to connect the second lower flange 14 with the first upper flange 10.
  • the upper flange 10 is arranged around the first upper opening 9 of the first air bellow 5.
  • the third air bellow 25 comprises a third lower opening 26.
  • a third lower flange 27 arranged around the third lower opening 26.
  • Connection means 15 are arranged to connect the third lower flange 27 with a second upper flange 28.
  • the second upper flange 28 is arranged around the second upper opening 29 of the second air bellow 6.
  • the second connecting plate 4 is arranged on an upper part of the third air bellow 25.
  • the upper part is arranged opposite the third lower opening 26.
  • the second connecting plate 4 comprises a second lower surface 8 which is arranged to be connected to the upper part of the third air bellow 25.
  • a second connecting element 40 is arranged on the upper surface 39.
  • the second connecting element 40 may be a threaded element, for example a screw, which may be arranged to cooperate with a nut or other fixation element.
  • the second connecting element 40 is arranged to be connected to the underside 41 of the platform 34 (not shown in figure).
  • Fig 3 illustrates part of vehicle lifting frame 2 where part of the platform 34 in a view from underneath is illustrated.
  • Fig 3 illustrates the second end 32 of the stabilising arm 30, which second end 32 is connected with a first connecting joint 35a and a second connecting joint 35b via a respective pin element.
  • the pin element may for be a bult and screw.
  • the first and second connecting joints 35a, 35b are fixed arranged to the underside 41 for example by welding.
  • the stabilising arm 30 is arranged to pivotably move around the pin elements which are arranged with the connecting joints 35a, 35b.
  • the pivotably movement can be either an upgoing movement or a downgoing movement.
  • the stabilising arm 30, via the pin elements is releasably connected to the connecting joints 35a, 35b whereby during maintenance, service or replacement, the stabilising arm 30 can be removed from the platform 34.
  • Fig 4 illustrates the air bellow device 1 in a view from underneath.
  • the stabilising arm 30 is connected with its first end 31 (see Fig 2 ) to an area where two adjacent air bellows 5, 6, 25 are connected to each other.
  • the first connecting plate 3 is on one side arranged with a first upper connecting surface 7 (see Fig 5 ), and on an opposite other side a first lower surface 36 is arranged. against the first upper connecting surface 7 the first air bellow 5 is arranged.
  • the first connecting plate 3 comprises several first connecting elements 37 which connecting elements 37 are arranged on the periphery around the connecting plate 3.
  • the connecting plate 3 is a sandwich construction which comprising a top plate 19, a middle plate 20, and a bottom plate 21 (see Fig 5 ). The three plates 19, 20, 21 are placed on top of each other and via the first connecting elements 37 connected to each other.
  • Fig 5 illustrates a cross view of the first connecting plate 3.
  • the first connecting plate 3 comprises mentioned top plate 19, middle plate 20, and bottom plate 21.
  • the first connecting plate 3 comprises two plate zones, a first plate zone 16 and a second plate zone 17.
  • the first plate zone 16 has a shape which is substantially circular.
  • the second plate zone 17 has a tongue shape, or oblong shape, which is connected with the first plate zone 16 and extends from the first plate zone 16.
  • the first connecting plate 3 with the first lower surface 36 is arranged to be form fitted in a recess which is arranged in the support arrangement 38 (see Fig 1 ).
  • the recess and the first connecting plate 3 have a similar and corresponding shape whereby the first connecting plate 3 is arranged to be form fitted into the recess.
  • the first connecting plate 3 comprises an outer periphery which is slightly smaller than the inner periphery of the recess to be able for the first connecting plate 3 and the recess to fit into each other.
  • the middle plate 20 is arranged against the bottom plate 21.
  • the top plate 19 is arranged against the middle plate 20.
  • the plates 19, 20, 21 which are arranged on top of each other, together form a sandwich construction, all having a similar outer periphery.
  • the middle plate 20 is arranged with a middle aperture 23 which is arranged in the first plate zone 16. Further, the middle plate 20 is arranged with a slot 24 which slot 24 is arranged in the second plate zone 17.
  • the middle aperture 23 and the slot 24 are arranged to communicate with each other.
  • the inner edge of the middle aperture 23 and the inner edge of the slot 24 are arranged to form one common inner periphery.
  • a top aperture 22 is arranged in the top plate 19 in the first plate zone 16. Between the top plate 19 and the bottom plate 21 in the second plate zone 17 is a duct 46 arranged. The duct 46 is arranged to communicate with the middle aperture 23 and the top aperture 22.
  • the air intake 18 may be a valve which is arranged to be regulated or adjusted to either let air enter into the duct 46 or let air flow out from the duct 46.
  • the air bellow device may be related to primarily a vehicle lifting frame. It will be appreciated that the principles described above with an air bellow device may be applied to other types lifting frames.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Damping Devices (AREA)
EP22203305.2A 2022-10-24 2022-10-24 Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung Pending EP4361083A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22203305.2A EP4361083A1 (de) 2022-10-24 2022-10-24 Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22203305.2A EP4361083A1 (de) 2022-10-24 2022-10-24 Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung

Publications (1)

Publication Number Publication Date
EP4361083A1 true EP4361083A1 (de) 2024-05-01

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ID=84360528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22203305.2A Pending EP4361083A1 (de) 2022-10-24 2022-10-24 Luftbalgvorrichtung für einen fahrzeughubrahmen und fahrzeughubrahmen mit einer luftbalgvorrichtung

Country Status (1)

Country Link
EP (1) EP4361083A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521861A (en) * 1967-11-03 1970-07-28 Gray Mfg Co Vehicle lift
EP1383702B1 (de) * 2001-05-04 2006-05-31 Olmec S.R.L. Verfahren und vorrichtung zur steuerung eines einfach wirkenden druckluftzylinders
KR20090083185A (ko) * 2008-01-29 2009-08-03 주식회사한일테크 자동차용 에어 잭
WO2016195501A1 (en) * 2015-06-05 2016-12-08 Jpm Beheer B.V. Modular recovery system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521861A (en) * 1967-11-03 1970-07-28 Gray Mfg Co Vehicle lift
EP1383702B1 (de) * 2001-05-04 2006-05-31 Olmec S.R.L. Verfahren und vorrichtung zur steuerung eines einfach wirkenden druckluftzylinders
KR20090083185A (ko) * 2008-01-29 2009-08-03 주식회사한일테크 자동차용 에어 잭
WO2016195501A1 (en) * 2015-06-05 2016-12-08 Jpm Beheer B.V. Modular recovery system

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