EP0286301A1 - Plate-forme de travail montable sur véhicule - Google Patents

Plate-forme de travail montable sur véhicule Download PDF

Info

Publication number
EP0286301A1
EP0286301A1 EP88302815A EP88302815A EP0286301A1 EP 0286301 A1 EP0286301 A1 EP 0286301A1 EP 88302815 A EP88302815 A EP 88302815A EP 88302815 A EP88302815 A EP 88302815A EP 0286301 A1 EP0286301 A1 EP 0286301A1
Authority
EP
European Patent Office
Prior art keywords
boom
vehicle
lift
personnel access
lift according
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.)
Granted
Application number
EP88302815A
Other languages
German (de)
English (en)
Other versions
EP0286301B1 (fr
Inventor
Ridley Stokoe
Wynford David Ollin
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.)
British Engines Ltd
Original Assignee
BRITISH ENGINES Ltd
Aerial Access Equipment Ltd
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 BRITISH ENGINES Ltd, Aerial Access Equipment Ltd filed Critical BRITISH ENGINES Ltd
Publication of EP0286301A1 publication Critical patent/EP0286301A1/fr
Application granted granted Critical
Publication of EP0286301B1 publication Critical patent/EP0286301B1/fr
Expired 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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type

Definitions

  • the present invention is a lift of the type used to enable an operator to gain access to an elevated location and is mountable upon a vehicle.
  • Vehicle-mounted personnel access lifts currently available occupy a substantial proportion of the normal load-carrying area of the vehicle or entail structural features which impede normal use of the load-carrying area.
  • one existing form of such a lift comprises a combination of lifting booms which are disposed along the centre line of a lorry chassis and lie parallel to the length of the vehicle; thus little if any of the lorry remains available for carrying goods or personnel.
  • An alternative available vehicle-mounted personnel lift is based upon a closed van. Again the lifting booms are disposed lengthwise of the vehicle but usually above the roof of a conventional van body and usually extending to at least a small extent rearward of the body.
  • the boom assembly is mounted upon the top of a vertical column, which in turn is mounted upon the vehicle chassis and extends upwardly through the body interior.
  • the access lift comprises an access platform or cage carried upon a lift assembly which comprises at least two articulated booms and is adapted to be so mounted upon a vehicle that said two articulated booms are stowable together transverse to the length of the vehicle.
  • the lift assembly may be stowed, when not in use, in a transverse position immediately behind the driving cab for the vehicle or, less desirably, at the rear of the load-carrying surface.
  • the remaining load-carrying area is unimpeded or is impeded to a minimum extent.
  • the boom assembly upon which the lift is based is made as compact as possible and to that end it is desirable that none of the booms be longer than can be accommodated within the width of the vehicle.
  • the lowermost boom (and thereby the whole boom assembly) is pivotally mounted at a point lying above one side of the vehicle chassis, either at the level of the load-carrying surface or at a level elevated above that surface.
  • An advantage of mounting the boom assembly at the top of a telescopic vertical column is that the operating height of the lift may be increased by extending the column.
  • an important further advantage is that, by extending the column telescopically as the first step in using the access lift, the boom assembly may be raised to a level at which it can be operated freely without any risk of impeding adjacent pedestrians or road traffic.
  • a further advantage of a telescopic column is that, by extending the column, the point of attachment of the boom assembly to the vehicle may be raised to above the height of the vehicle cab, thereby permitting, if desired, rotation of the assembly about a vertical axis to enable the lift to extend in directions other than across the length of the vehicle.
  • the lowermost boom in the assembly be so pivoted about a horizontal pivot at the point of attachment that said lowermost boom may adopt a downwardly-inclined position, for example extending at an angle of the order of fortyfive degrees downwardly across the width of the vehicle towards the chassis. In this way, a particularly compact orientation of the assembly may be achieved when the latter is stowed.
  • a particularly preferred form of the personnel access lift according to the invention includes a generally vertical boom, displaced across the width of the vehicle from the point of attachment of the assembly to the vehicle and linked to the vehicle by a parallel-motion linkage, whereby said vertical boom will retain its generally vertical orientation throughout operation of the access lift.
  • the lowermost boom may extend downwardly from the upper end of that column to the lower end of the vertical boom, and a link running parallel to the lowermost boom may ensure that the vertical boom remains parallel to the column at all times.
  • Such a vertical boom may if desired also be telescopically extensible.
  • the boom assembly may be made particularly compact in its collapsed or stowed condition by arranging that at least one of the booms, for example the uppermost boom, is off-set relative to a lower boom or relative to said optional vertical column along the line of mutual pivoting of said upper and lower booms.
  • the lift may usefully be hydraulically operated.
  • at least one of the pairs of articulated booms and/or the lowermost boom and said optional vertical column may be caused to pivot relative to each other by means of a hydraulic ram extending between them.
  • the hydraulic driving power for operating the lift may be provided by some form of power take-off mechanism from the vehicle engine.
  • at least one such hydraulic ram is dispensed with by providing a mechanical linkage between, for example, the uppermost pair of booms such that upward pivotting of one of the booms automatically pivots the other boom upwardly about their mutual pivot.
  • the uppermost boom will carry at its upper end a platform or cage to carry the operator. It is highly desirable that a self-levelling mechanism be provided to maintain the platform level at all positions of the boom assembly.
  • Such self-levelling mechanisms for example tie-rods linking the platform to another part of the lift structure, are already known per se .
  • Operation of the lift is preferably effected from controls located on the platform or cage, so that an operator may enter the cage and elevate the latter and adjust its spatial position from within the cage.
  • the movement of the booms and cage may be controlled from the level of the vehicle surface.
  • the access lift according to the present invention may be custom-made for a particular make of lorry or van or may even be built with the vehicle itself. However it is envisaged as being particularly suitable for designing as a conversion or modification unit or kit for addition to a standard vehicle chassis after manufacture of the latter.
  • the whole lift structure including if desired an aforesaid vertical column, may be built upon one or more cross-members designed to be mounted across an existing vehicle chassis.
  • a cross-member or members is provided with a lift-jack at each end, which may be extended downwards into contact with the adjacent ground surface to provide extra stability to the personnel lift when it is to be used.
  • Such a self-contained unit for attachment to a vehicle chassis may be sold or shipped as such, for example overseas, to a factory where vehicles are produced or to a workshop in which vehicle modifications are carried out.
  • the base frame of the personnel access lift comprises two cross-members 7, together carrying a lifting jack 8 at each end and secured across the chassis 9 of a vehicle, immediately behind the driving cab 10.
  • a column 11 Projecting vertically from the cross-members 7, at the nearside of the vehicle, is a column 11, which is telescopically extensible under hydraulic pressure.
  • the upper end 12 of the column 11 lies, when contracted, somewhat above the height of the top of the cab 10; that upper end 12 carries the boom assembly.
  • the lowermost boom 13 is pivotted at one end at pivot point 14 on the column end 12 and carries at its other end a vertical boom 15.
  • Parallel to the boom 13 and also linking the column upper end 12 and the boom 15 is a link 16, which holds the boom 15 vertical whatever the position of the boom 13.
  • the vertical boom 15 In the stowed position of the boom assembly, as shown in Fig. 1, the vertical boom 15 is located above the cross-members 7 at the opposite side of the vehicle to the vertical column 11 and the boom 13 lies across the vehicle at an angle of the order of 45° to the horizontal.
  • a cranked extension 18 a of the boom 18 is linked to the vertical boom 15 by a link 20.
  • the effect of the link 20 is that, when the boom 17 pivots clockwise relative to the vertical boom 15, the uppermost boom 18 pivots in the same direction relative to the boom 17.
  • a personnel cage 21 At the upper end of the boom 18 is located a personnel cage 21.
  • a self-levelling mechanism (not shown) is provided to ensure that the cage 21 remains level in all positions of the boom assembly.
  • Relative pivotting of the lowermost boom 13 and the vertical column 11 is effected by a hydraulic ram 22 and pivotting of the boom 17 relative to the vertical boom 15 is effected by a hydraulic ram 23 (not visible in Fig. 2).
  • Pivotting of the uppermost boom 18 is effected by the link 20.
  • Figs. 4 to 6 show an assembly such as described above mounted upon a van.
  • the assembly is located between the cab 10 and van bodies 25 and 26 respectively, body 26 being partially extended forward at 27 to increase its capacity as compared with body 25.
  • the assembly is located at the rear of the van, behind the body 28.
  • the illustrated embodiment of the invention is a very compact personnel lift, which can be mounted on a vehicle with minimum adaptation of the vehicle and with very little demand on load-carrying capacity, but which can extend to a substantial height relative to the height of the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP19880302815 1987-04-04 1988-03-30 Plate-forme de travail montable sur véhicule Expired EP0286301B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8708123 1987-04-04
GB878708123A GB8708123D0 (en) 1987-04-04 1987-04-04 Vehicle mounted access lift

Publications (2)

Publication Number Publication Date
EP0286301A1 true EP0286301A1 (fr) 1988-10-12
EP0286301B1 EP0286301B1 (fr) 1992-03-11

Family

ID=10615284

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88302814A Withdrawn EP0286300A1 (fr) 1987-04-04 1988-03-30 Flèche pour plate-forme de travail
EP19880302815 Expired EP0286301B1 (fr) 1987-04-04 1988-03-30 Plate-forme de travail montable sur véhicule

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP88302814A Withdrawn EP0286300A1 (fr) 1987-04-04 1988-03-30 Flèche pour plate-forme de travail

Country Status (4)

Country Link
EP (2) EP0286300A1 (fr)
DE (1) DE3868962D1 (fr)
FI (1) FI881542A (fr)
GB (3) GB8708123D0 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307898A (en) * 1993-03-08 1994-05-03 Purdy Paul J Aerial work apparatus
FR2702752A1 (fr) * 1993-03-17 1994-09-23 Hiviaco 88 Dispositif élévateur pour nacelle de transport de personnes.
FR2704539A1 (fr) * 1993-04-29 1994-11-04 Somadel Appareil d'élévation de personnel pour véhicule.
EP0931759A1 (fr) * 1998-01-27 1999-07-28 Grove U.S. LLC Flèche latérale pour plateforme de travail mobile à mât vertical
CN115240447A (zh) * 2022-07-29 2022-10-25 重庆电子工程职业学院 一种智能交通障碍桩

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137189B (de) * 1961-01-04 1962-09-27 Robel & Co G Fahrbare Arbeitsbuehne
US3132718A (en) * 1960-04-27 1964-05-12 Hunt Pierce Corp Power-operated boom structure
FR1440808A (fr) * 1965-04-16 1966-06-03 élévateur perfectionné, adaptable à un véhicule
FR2085928A1 (fr) * 1970-04-08 1971-12-31 Tranchero Jacques
GB1325474A (en) * 1970-11-05 1973-08-01 V Pt I Tyazhelogo Mash Mechanical elevator
GB1431980A (en) * 1973-12-28 1976-04-14 Merrick J A Elevating devices
DE3540630A1 (de) * 1984-11-16 1986-05-22 Aktiebolaget Sjölanders Smides & Mek Verkstad, Osby Fahrbare arbeitsbuehne

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB618793A (en) * 1946-10-18 1949-02-28 Taylor & Sons Manchester Ltd F Improvements in or relating to mobile cranes
DK119543A (fr) * 1967-11-14 1971-01-18
GB1263604A (en) * 1969-07-05 1972-02-16 Simon Eng Dudley Ltd Aircraft refuelling apparatus
FR2085264B1 (fr) * 1970-04-02 1975-02-21 Potain Sa
GB1290402A (fr) * 1970-04-23 1972-09-27
FR2085509B1 (fr) * 1970-04-28 1976-12-03 Rotheisler John
CA973821A (en) * 1971-05-27 1975-09-02 Albert L. Clark Aerial platform
JPS5148144Y2 (fr) * 1971-10-20 1976-11-19
US3854606A (en) * 1971-11-26 1974-12-17 Cascade Corp Vehicle with material loader
US3807575A (en) * 1972-06-13 1974-04-30 Merrick Hydraulics Inc Elevating devices
US4019604A (en) * 1975-06-16 1977-04-26 Fabtek, Inc. Elevating platform apparatus
FR2511998A1 (fr) * 1981-08-27 1983-03-04 Laillet Jean Nacelle elevatrice a verin unique d'elevation
IT1154479B (it) * 1982-02-25 1987-01-21 Jacques Tranchero Macchina trasportabile su autoveicolo atta ad elevare una navicella ad altezze diverse
US4511015A (en) * 1983-06-15 1985-04-16 Purdy Paul J Manlift
US4623067A (en) * 1984-12-04 1986-11-18 Iowa Mold Tooling Co., Inc. Compact foldable crane

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132718A (en) * 1960-04-27 1964-05-12 Hunt Pierce Corp Power-operated boom structure
DE1137189B (de) * 1961-01-04 1962-09-27 Robel & Co G Fahrbare Arbeitsbuehne
FR1440808A (fr) * 1965-04-16 1966-06-03 élévateur perfectionné, adaptable à un véhicule
FR2085928A1 (fr) * 1970-04-08 1971-12-31 Tranchero Jacques
GB1325474A (en) * 1970-11-05 1973-08-01 V Pt I Tyazhelogo Mash Mechanical elevator
GB1431980A (en) * 1973-12-28 1976-04-14 Merrick J A Elevating devices
DE3540630A1 (de) * 1984-11-16 1986-05-22 Aktiebolaget Sjölanders Smides & Mek Verkstad, Osby Fahrbare arbeitsbuehne

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307898A (en) * 1993-03-08 1994-05-03 Purdy Paul J Aerial work apparatus
FR2702752A1 (fr) * 1993-03-17 1994-09-23 Hiviaco 88 Dispositif élévateur pour nacelle de transport de personnes.
FR2704539A1 (fr) * 1993-04-29 1994-11-04 Somadel Appareil d'élévation de personnel pour véhicule.
EP0931759A1 (fr) * 1998-01-27 1999-07-28 Grove U.S. LLC Flèche latérale pour plateforme de travail mobile à mât vertical
FR2774083A1 (fr) * 1998-01-27 1999-07-30 Kidde Ind Inc Dispositif elevateur perfectionne
US6378652B1 (en) 1998-01-27 2002-04-30 Grove U.S.L.L.C. Lateral jib for vertical mast mobile elevating work platform
CN115240447A (zh) * 2022-07-29 2022-10-25 重庆电子工程职业学院 一种智能交通障碍桩
CN115240447B (zh) * 2022-07-29 2023-04-25 重庆电子工程职业学院 一种智能交通障碍桩

Also Published As

Publication number Publication date
EP0286301B1 (fr) 1992-03-11
GB8807595D0 (en) 1988-05-05
FI881542A (fi) 1988-10-05
GB2203123B (en) 1990-12-12
GB8708123D0 (en) 1987-05-13
DE3868962D1 (de) 1992-04-16
FI881542A0 (fi) 1988-03-31
GB2203122B (en) 1990-12-12
GB2203123A (en) 1988-10-12
GB8807596D0 (en) 1988-05-05
EP0286300A1 (fr) 1988-10-12
GB2203122A (en) 1988-10-12

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