EP3228579A1 - Vérin de levage à fourche de support de rotation et de pivotement - Google Patents

Vérin de levage à fourche de support de rotation et de pivotement Download PDF

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Publication number
EP3228579A1
EP3228579A1 EP16163638.6A EP16163638A EP3228579A1 EP 3228579 A1 EP3228579 A1 EP 3228579A1 EP 16163638 A EP16163638 A EP 16163638A EP 3228579 A1 EP3228579 A1 EP 3228579A1
Authority
EP
European Patent Office
Prior art keywords
supporting fork
frame
swivelling
hoisting jack
fork
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.)
Withdrawn
Application number
EP16163638.6A
Other languages
German (de)
English (en)
Inventor
Juan DONATIU CUELLO
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.)
Importaciones Nauticas SA
Original Assignee
Importaciones Nauticas SA
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 Importaciones Nauticas SA filed Critical Importaciones Nauticas SA
Priority to EP16163638.6A priority Critical patent/EP3228579A1/fr
Publication of EP3228579A1 publication Critical patent/EP3228579A1/fr
Withdrawn legal-status Critical Current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
    • B66F3/36—Load-engaging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0007—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby for engines, motor-vehicles or bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/48—Manually-movable jib cranes for use in workshops
    • B66C23/485—Manually-movable jib cranes for use in workshops for lifting and moving engines, e.g. car or aero engines or parts thereof

Definitions

  • This invention refers to an hydraulic and/or pneumatic hoisting jack located on a frame having capacity to move on the plane of the ground and having a supporting fork with capacity to rotate 360° in respect to the frame, while at the same time the column supporting said fork has capacity to swivel within an angle comprised between -30 and +30 degrees approximately.
  • Another object of the invention consists in the structure of the frame of the hydraulic and/or pneumatic hoisting jack, permitting a plurality of movements of the above mentioned supporting fork, in a precise form.
  • Hydraulic and/or pneumatic hoisting jacks exist already in the market, having the corresponding forks, which height can be regulated with the purpose to locate the supporting fork in the correct position to hoist the corresponding weight. However said forks are always located in the same plane.
  • the hoisting jacks known in this field are not capable to raise certain weights or objects, particularly those mounted on the hull of boats.
  • a part of said weights, above all those referring to the engines of the boats, are located inside of the hulls, while other parts of said engines, mainly the devices for driving the propeller or propellers and the assembly of levers for steering the boat, are located outside of the hull of the boat, being therefore difficult enough to hoist said weights without harming the surfaces of the hull in the vicinity of said parts of the engine, mainly in the engines of the IPS type, having two engines and two propellers with two rudders, in diverging directions.
  • the object of the invention is the incorporation of a modified hoisting jack to a frame structure, permitting the associated supporting jack to rotate 360°, having as well the possibility to swivel said fork in respect to a vertical axis regulable between - 30 and +30 degrees approximately, and finally permitting the rotation of 360° and the translation of said frame and its structure on the plane of the ground and consequently the hoisting jack and the movable fork associated to said frame.
  • the invention comprises the following means:
  • the translation and supporting means for the hoisting jack include a frame with a fixed column perpendicular to the frame, apart from the supporting structure of said frame with the corresponding wheels, permitting the movement of the hoisting jack and the frame across the plane of the ground.
  • the means for the vertical movement and swivelling of the supporting fork both vertically and angularly, have a thread joining the column perpendicular to the frame to the swivelling column.
  • the means for swivelling the supporting fork comprise horizontal pins perpendicularly protruding from the pneumatic and/or hydraulic cylinder permitting the rotation of said cylinder and particularly of said fork.
  • the means for the adaptation of the supporting fork to the dimensions of the mass to be suspended include multiple extensible tubular elements, forming some kind of a "U" structure with a vertical arm which is perpendicular to the base of said "U".
  • the present invention comprises a frame formed by longitudinal beams and cross beams with the corresponding wheels, on which the movable hoisting jack hydraulically or pneumatically driven is incorporated.
  • a tubular element is welded to the frame, so that the hoisting jack and said tubular element can oscillate in respect to the structure of the frame and in this way also the supporting fork, associated to said tubular element.
  • the assembly of commanding levers for the engines is secured by means of clamps located at the ends of the three arms forming the supporting base.
  • the structure of the hoisting jack in one of the embodiments eventually possible is practically cylindrical, having in its part welded to the same a tubular column inside of which a second tubular element is located, permitting the second element to slide within the first element, as well as the raising and descent of the supporting fork, on which upper end means are incorporated for pressing a fork or support with a "U" configuration, having at the ends of its arms the corresponding clamps.
  • Said internal tubular column has some supporting plates perpendicular to the column and parallel to each other which hold a prismatic bar having an orifice for the passage of a worm gear driven by the corresponding hand lever, so that the movement of the worm gear implies according to a first degree of freedom, the oscillation in respect to the vertical axis of the supporting fork between +30 and -30 degrees approximately, according to a second degree of freedom, it implies the tubular element to slide up and down with the supporting fork by the action of the hydraulic and/or pneumatic hoisting jack, permitting a third degree of freedom the rotation of 360° of the supporting fork in respect of the rest of elements or parts integrating the invention, and finally a fourth degree of freedom permits to rotate and displace the assembly of the hoisting jack and its frame by means of the wheels of the frame sliding on the plane of the ground.
  • the supporting fork is formed by tubular sections integrating a "U" structure, which base has a variable width, permitting the adaptation to different configurations of the mass to be suspended with four degrees of freedom, securing the masses by means of corresponding clamps at the ends of the three arms.
  • the supporting fork is assembled on the internal tubular element which drives the hoisting jack by means of the corresponding circular flanges, permitting the rotation of 360° of the fork and the fixture to said tubular element by means of the corresponding handle.
  • the hoisting jack (10) has on the frame (11) a pneumatic and/or hydraulic cylinder (15), a tubular column (17) which has internally another tubular element (24), in which upper end some means for pressing the supporting fork (27) are located.
  • the frame (11) of the hoisting jack (10) has a supporting structure serving as movable support to the hoisting jack (10), having longitudinal beams (11a) secured by cross beams (11b) permitting the movement of said hoisting jack (10) by means of the wheels (31) located in the lower part of the cross beams (11b), permitting the movement of the hoisting jack as a whole.
  • another column (22) is secured, being perpendicularly arranged to the cross beams (11b) and having its an upper end (22) a bar (23) which is capable to rotate in respect to the fins (22a) which are crossed by a half axis going through said bar (23) and fins (22a).
  • an hydraulic or pneumatic cylinder (15) which by means of a lever (16) in the case of being an hydraulic cylinder, displaces upside down and vice versa the supporting fork (27) fixing the tubular element (24) which is the base of (27) by means of the pressing elements (25) which have the form of corresponding circular flanges (25a-25b).
  • the cylinder (15) and the arm (17) can move oscillating forwards and rearwards, by means of clamps (12), which secure the shafts (34) welded to the body of said cylinder (15), the horizontal extensions (12a) of the clamps (12) being screwed to the longitudinal beams (11a).
  • the tubular element (24) having the capacity to slide up and down within the internal part of the column (17), receives the force from the hoisting jack (10), provoking the raising and descent of the supporting fork (27) in whatever position, existing one degree of freedom for rotation in 360° thanks to said pressing elements and the lever (33), which when rotating in the counterclockwise sense releases the pressure on the supporting fork (27), permitting to locate the same in the suitable position, while when rotating clockwise the lever (33) secures the fork in the selected position.
  • the supporting plates (18) are welded to the column (17) and its purpose is to support said bar (19) between its internal surfaces, in which orifice (19a) engages the threaded rod (21a) driven by the hand control wheel (21b).
  • the frame (11) On the frame (11) is perpendicularly assembled the column (22) which blocks the rotation means of the threaded rod (21a) which rotates by means of the hand control wheel (21b) according to another of, the features of the invention.
  • the structure of the frame (11) and the elements which are assembled on the same, permit to locate the supporting fork (27) under or aside of the weight to be handled, in order to raise or lower said weight by the action of the lever (16) on the pneumatic cylinder (10).
  • the better adapt the supporting fork (27) to the shape of the weight to be suspended it has a base (27a) with extensible arms (27b) which slide by the action of the lever (33) putting closer or farther away the arms (27b) and the clamps (28) welded to the ends of said arms (27b) and perpendicularly to the base (27a) of a third arm (17c).
  • the mass to be suspend comprises one or more rudders with the driving means for the propellers, located outside the hull of the boat, which elements by means of the supporting fork (27) and its three clamps (28) can be disassembled from the engine or engines located inside of the hull to be eventually repaired being afterwards assembled again.
  • the rudders of the IPS engines form a certain angle in respect to the vertical and when they should be repaired are separated from the engines assembled inside of the hull, changing gaskets and any other internal parts of the driving means including the propellers, for its subsequent re-assembly with the assistance of a movable hoisting jack having a supporting fork with three arms in which ends clamps are located to be adapted to the specific shape of said rudders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
EP16163638.6A 2016-04-04 2016-04-04 Vérin de levage à fourche de support de rotation et de pivotement Withdrawn EP3228579A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16163638.6A EP3228579A1 (fr) 2016-04-04 2016-04-04 Vérin de levage à fourche de support de rotation et de pivotement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16163638.6A EP3228579A1 (fr) 2016-04-04 2016-04-04 Vérin de levage à fourche de support de rotation et de pivotement

Publications (1)

Publication Number Publication Date
EP3228579A1 true EP3228579A1 (fr) 2017-10-11

Family

ID=55808352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16163638.6A Withdrawn EP3228579A1 (fr) 2016-04-04 2016-04-04 Vérin de levage à fourche de support de rotation et de pivotement

Country Status (1)

Country Link
EP (1) EP3228579A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107785054A (zh) * 2017-11-10 2018-03-09 大连交通大学 一种空间曲梁六自由度微位移工作台
EP3670423A1 (fr) * 2018-12-21 2020-06-24 GEDORE Holding GmbH Dispositif de levage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700132A (en) * 1971-04-21 1972-10-24 James R Waters Floor hoist
US4090625A (en) * 1977-01-10 1978-05-23 Jerry Walters Portable hydraulic hoist for vehicular engines
US4239196A (en) * 1979-05-09 1980-12-16 Hanger James E Engine stand
US5190265A (en) * 1992-01-21 1993-03-02 Otc Division Of Spx Corporation Vehicle service tool
US6491293B1 (en) * 2002-02-08 2002-12-10 Michael L. Brewer Rotatable engine holding assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700132A (en) * 1971-04-21 1972-10-24 James R Waters Floor hoist
US4090625A (en) * 1977-01-10 1978-05-23 Jerry Walters Portable hydraulic hoist for vehicular engines
US4239196A (en) * 1979-05-09 1980-12-16 Hanger James E Engine stand
US5190265A (en) * 1992-01-21 1993-03-02 Otc Division Of Spx Corporation Vehicle service tool
US6491293B1 (en) * 2002-02-08 2002-12-10 Michael L. Brewer Rotatable engine holding assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107785054A (zh) * 2017-11-10 2018-03-09 大连交通大学 一种空间曲梁六自由度微位移工作台
EP3670423A1 (fr) * 2018-12-21 2020-06-24 GEDORE Holding GmbH Dispositif de levage

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