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
  • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
  • B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated

Definitions

• This invention relates to a lift, and more par ⁇ ticularly to a lift for lifting automative vehicles of the type used in a garage for the inspection or reparing thereof.
• This mechanism should comprise intricate electrical wir ⁇ ing, an electric device for movement of motor to the right and to the left in turn and various auxiliary parts resulting in difficult manufacture.
• this lift cannot be operated at all in case of power failure. Operating the lift in a moist place, snowy or rainy weather involves risk of elec ⁇ tric shock.
• a hydraulic lift having hvdrauli ⁇ operated arms.like the mechanically operated lift is also constructed co plicately comprising motor, pump, valves incurred by intricate plumbing, intri ⁇ cate electrical wiring, control switch and the like.
• An object of the present invention which over ⁇ comes the disadvantages pointed out above in the prior art lifts is to provide a lift having an air cylinder therein of which up-and-down movement • effects lifting and lowering operation of its arms in balance and safety.
• the compressed air for operating an air cylinder is stored in a separate storage tank.
• the air storage tank may be fulfilled either by air produced from the air compress or by exhaust gas discharged from other automotive ve- hides so that in an emergency such as in power fail ⁇ ure the operation of the lift will be achieved normal ⁇ ly.
• a compressed air tank constituting part of the present invention has another exhaust pipe through which air may be suppoied to an impact wrench, spray gun or other various parts of automotive vehicles at need.
• Fig. 1 is a partial front elevational view show ⁇ ing details of the present invention with the carrier arms in an slightly elevated position;
• Fig. 2 is a partial side elevational view taken along the arrow "A" of Fig. 1;
• Fig. 3 is a sectional view taken along lines B-B' of Fig. 1.
• the uprights 1, 1' houses guide rails 2 respectively which guide rollers 4.
• the rollers 4 are movably mounted on both sides of carriers 3,3'.
• a longitudinal air tank 5 Centrally inwardly of the upright 1' is provid ⁇ ed a longitudinal air tank 5.
• Three valves 6,7, and 8 regulate and check the air of an air tank 5.
• the uppermost " valve 6 is for checking and regu ⁇ lating the air produced from an air compressor (not shown) .
• the middle valve 7 other than serving to lift the carriers 3,3' also serves to regulate and 5 check the air of the air tank 5 for the air to be su ⁇ pplied to an impact wrench or spray gun, if necessary.
• the lower control valve 8 is for use when the use of the air compressor is impossible such as in the case of power failure. In such an emergency, the ⁇ ] _ Q exhaust gas from other automotive vehicles through a hose and the like may be supplied to the air storage tank 5, whereby the lifting operation will be achieved without trouble.
• An auto trap 9 is provided below the air tank 5 ⁇ _5 for removing the moisture produced from the air tank thus facilitating the operation of an air cylinder 10.
• the air cylinder 10 is longitudinally provided centrally inwardly of the upright 1.
• a piston support 12 connected upwardly of the carrier 3 is joined to 20 the upper end of the piston 11 so that the piston 11, the piston support 12 and carrier 3 move simultaneous ⁇ ly with one another.
• Carriers 3,3' are mounted on the uprights 1,1' respectively (see Fig. 3) and arms 14 together with 25 gears are movably fixed to tne uprights 1,1* by pins 15.
• a control lever 16 serves to limit the rotation of the arms 14 causing the arms 14 to be stopped at desired point.
• Balancer members 17 are movably bolted into the 30 end of the arms 14 and their height may changed freely by means of a screw.
• the balancer members 17 serve to balance automotive vehicles when lifted.
• the carrier 3 which is rais ⁇ ed or lowered by a piston 11 has anchored protions at its bottom to which a wire rope 18 is securely an- 5 chored.
• a wire rope 18 is longitudinally guided by a roller 19a and moves through the inside of the base cover 20.
• rollers 19b,19c which ride into the lower and upper ends of the air tank 5 the other end of the wire rope 18 is anchored to the upper 10 end of the right carrier 3 * .
• a pipe 21 which transmits the air pressure from the air tank 5 passes through the inside of the base cover 20, a gate valve 22, and a pressure gage 23.
• the operating levers 24,25 for controlling the ⁇ 5 air from the upper and lower part of the air cylin ⁇ der 10 move the piston 11 upward and downward.
• Air of a predetermined pressure is supplied into the air tank 5 by means of an air compressor and the like. If desiring to lower the carriers 3,3' the air Q in the cylinder 10 will be exhausted by operating the lever 25 causing the carriers 3,3" with their arms 14 to be lowered, thus allowing the piston 11 to be fit ⁇ ted within the cylinder 10. Thereby the piston sup ⁇ port 18 pushes down the carrier 3 and the wire rope 18 moves to the right whereby the other end of the wire rope 18 which is anchored to the upper end of the carrier 3 ' by being by guided by the rollers 19 , 19c is lowered thus lowering the right carrier 3'.
• the operation of the lever 24 will cause the air in the air in the air tank 5 to be transmitted through the pype 21 into the air cylinder 10.
• This allows the piston 11 to be raised causing the piston support which is secured to the both sides of the piston 11 and connected to the carrier 3, to be raised simulta ⁇ neously therewith.
• the carrier 3 and the arm 14 will be raised.
• the maintenance of the opened position of the lever 24 enables the continuous upward movement of the automobiles. And when the automobile gets to a suitable elevated position, by operating the lever 24 to be in the closed position, the lifting is stop ⁇ ped maintaining the height. In this condition by ro ⁇ tating the lever 28 for the engagement of the ratchet 27 and the toothed portion of the uprithts 1,1' , the carriers 3,3' will be more securely mounted to the up ⁇ rights 1,1' assuring safe work condition.

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)
• Valve Device For Special Equipments (AREA)
• Magnetic Heads (AREA)

Priority Applications (2)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26627704

Family Applications (1)

Country Status (5)

Cited By (7)

Citations (3)

• 1988
  • 1988-03-31 EP EP19880903405 patent/EP0309538A1/en not_active Withdrawn
  • 1988-03-31 BR BR888806992A patent/BR8806992A/pt unknown
  • 1988-03-31 JP JP1988600018U patent/JPH01500006U/ja active Pending
  • 1988-03-31 WO PCT/KR1988/000007 patent/WO1988007496A1/en not_active Application Discontinuation
  • 1988-03-31 AU AU15710/88A patent/AU1571088A/en not_active Abandoned

Patent Citations (3)

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