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
  • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
  • B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
• • 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
  • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
• • 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
  • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
  • B66F7/065—Scissor linkages, i.e. X-configuration

Definitions

• the present invention relates to a bench for car repair.
• the car bench of the invention can be used conveniently as a bench for work in a workshop and in all situations in which it is necessary to lift a car even simply to check its lower parts which are not visible or during tire replacements; for example, the invention is useful particularly but not exclusively in body shops as a bench for measuring the geometric parameters of a car affected by an accident.
• the most widely used work benches include those constituted by a deck which is associated with a pantograph (or scissor-like) lifting device, whose height from the ground, when fully lowered, is in any case 40-50 centimeters.
• Benches which are recessed in the floor are also known.
• a pit is formed in the floor and a lifting device for the bench, for example an electric and hydraulic pantograph lifting unit, is arranged on the bottom of the pit.
• the bench is shaped complementarity to the plan profile of the pit and when it is completely lowered the surface of the bench on which the car rests is substantially aligned with the floor.
• the aim of the present invention is to solve the above-mentioned drawbacks observed in known types of bench, by providing a car bench which allows easy placement of the car.
• an object of the present invention is to provide a car bench which allows to lift the car without particular danger for workers and for damaging tools.
• Another object of the present invention is to provide a car bench which is structurally simple.
• a car bench of the type which comprises first lifting means for a deck onto which the car is to be arranged, said first lifting means being of the type to be arranged on the bottom of a pit provided in the floor of the room in which said bench works and being adapted to allow a vertical movement of said deck from a position which is substantially aligned with the level of the floor in which the pit is provided to a position which is raised from the floor, said deck being substantially shaped complementarity with respect to the plan contour of the pit, characterized in that it comprises second lifting means for a platform to be arranged between the bottom of the pit and said deck, said platform being shaped complementarily with respect to the plan contour of the pit, said second lifting means allowing a vertical movement from a lowered position within said pit to a raised position so as to close said pit.
• Figure 1 is a perspective view of a car bench according to the invention during lifting
• Figure 2 is a sectional front view of the car bench of Figure 1 when it is completely lowered;
• Figure 3 is a sectional front view of the car bench of Figures 1 and 2 during lifting. Ways of carrying out the Invention
• a car repair bench according to the invention is generally designated by the reference numeral 10.
• the bench 10 comprises on the bottom 1 1 of a pit 12, which has a typical rectangular plan contour and is provided in a floor 13, first lifting means 14 for a deck 15 onto which the car (not shown in the figures) is to be arranged.
• the first lifting means 14 allow a vertical movement of the deck 15 from a position in which it is substantially aligned with the level of the floor in which the pit is provided to a position in which it is raised from the floor.
• the lifting means 14 are constituted by a pantograph lifting device 16 of the electrohydraulic type which is arranged centrally with respect to the deck 15.
• the plan space occupation of the pantograph lifting device 16 is smaller than the plan contour of the pit 12, forming in practice some space between the walls of the pit 12 and the lifting device 16.
• the deck 15, in this embodiment, is of the type which constitutes the vehicle supporting surface of a measurement bench for body shop workers; for example, the typical structure of a deck constituted by two longitudinal tracks 17 whose width allows the optional placement of wheels and which are supported by a frame constituted by longitudinal members 18 and cross- members 19 on which it is possible to fix centering templates and other measurement devices.
• the deck 15 is substantially shaped complementarily to the plan contour of the pit 12, so that when it is completely lowered it closes the pit.
• the bench further comprises, on the bottom of the pit 12, second means 20 for lifting a platform 21 which is arranged between the bottom 1 1 of the pit 12 and the deck 15; the platform 21 is shaped complementarily to the plan contour of the pit 12.
• the second lifting means 20 allow a vertical movement of the platform 21 from a position in which it is lowered inside the pit 12 to a position in which it is substantially aligned with the level of the floor so as to close the pit.
• the platform 21 is constituted by metal beams 22 which have a C-shaped cross-section and are fixed monolithically to each other so as to have centrally a through opening 23 for accommodating and moving the pantograph lifting device 16.
• the second lifting means 20 are constituted, in this embodiment, by pneumatic springs 24, substantially of a known type, which are arranged between the bottom 1 1 of the pit 12 and the platform 21 ; in particular, in this example there are four pneumatic springs 24 arranged at the four corners of the platform 21.
• the pneumatic springs 21 are of course connected to a pneumatic system (not shown in the figures), which allows their inflation and deflation.
• the actuation of the pantograph lifting device 16 is controlled by an electronic control unit 25, which is available to an operator by means of controls.
• the first lifting means and the second lifting means must be mutually coordinated so that when the deck 15 is lifted, this is followed by a lifting of the platform 21 , and so that lowering of the former is matched by a lowering of the latter.
• the difference in the actuation time of the first lifting means with respect to the second lifting means can be preset in the electronic control unit 25 (which in this case controls directly also the pneumatic system connected to the springs 24) or can be managed by a sensor system, so that the detection of a vertical movement of the deck in a given direction is matched, after a certain preset time, by the actuation of the pneumatic springs so as to provide a corresponding translational motion of the platform.
• the second means can be constituted by other types of translational actuator, such as for example pneumatic or hydraulic cylinders or electromechanical actuators.
• the first lifting means also can be constituted by other types of device.
• the present invention in fact provides a car bench which allows to lift the car easily.
• the materials employed may be any according to requirements and to the state of the art.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Geology (AREA)
• Mechanical Engineering (AREA)
• Structural Engineering (AREA)
• Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38830376

Family Applications (1)

Country Status (5)

Cited By (4)

Families Citing this family (4)

Citations (4)

Family Cites Families (2)

• 2006
  • 2006-10-31 IT ITPD20060403 patent/ITPD20060403A1/it unknown
• 2007
  • 2007-10-09 WO PCT/EP2007/060688 patent/WO2008052864A1/en active Application Filing
  • 2007-10-09 EP EP07803628A patent/EP2077972B1/en active Active
  • 2007-10-09 JP JP2009533775A patent/JP5232792B2/ja active Active
  • 2007-10-09 CN CN200780040317.6A patent/CN101528585B/zh active Active

Patent Citations (4)

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