EP0857120A1 - Dispositif de remorquage - Google Patents

Dispositif de remorquage

Info

Publication number
EP0857120A1
EP0857120A1 EP96938236A EP96938236A EP0857120A1 EP 0857120 A1 EP0857120 A1 EP 0857120A1 EP 96938236 A EP96938236 A EP 96938236A EP 96938236 A EP96938236 A EP 96938236A EP 0857120 A1 EP0857120 A1 EP 0857120A1
Authority
EP
European Patent Office
Prior art keywords
boom
supporting
vehicle
towed
joint
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Withdrawn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
EP96938236A
Other languages
German (de)
English (en)
Inventor
Juhani VYYRYLÄINEN
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.)
Kouvolan Sun-Filter Oy
Original Assignee
Kouvolan Sun-Filter Oy
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 Kouvolan Sun-Filter Oy filed Critical Kouvolan Sun-Filter Oy
Publication of EP0857120A1 publication Critical patent/EP0857120A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/12—Vehicles adapted to transport, to carry or to comprise special loads or objects for salvaging damaged vehicles
    • B60P3/125—Vehicles adapted to transport, to carry or to comprise special loads or objects for salvaging damaged vehicles by supporting only part of the vehicle, e.g. front- or rear-axle

Definitions

  • the present invention relates to a towing de ⁇ vice as defined m the preamble of claim 1.
  • a towmg device which is mounted on a breakdown vehicle for the towmg of an ⁇ other vehicle.
  • a towing device comprises a frame which is fixedly connected to the chassis of a break ⁇ down vehicle, being fixed e.g. directly to the longi ⁇ tudinal beams of the chassis of a truck or to auxil- lary frames mounted on them.
  • the frame of the towing device may also be fixed to a chassis which is provided with interchangeable platform equip ⁇ ment and which can be moved onto the chassis of a ve ⁇ hicle provided with corresponding equipment for moving an interchangeable platform.
  • the prior-art towing de ⁇ vice further comprises a boom comprising an arm part pivoted by its first end on the frame of the towing device by means of a first horizontal joint, whose joint axis lies substantially in a horizontal direc- tion transverse to the longitudinal direction of the breakdown vehicle, and a vertical part fixedly con ⁇ nected to the second end of the arm part, from which the vertical part extends downwards n a substantially vertical direction.
  • the towmg device com- prises a supporting boom connected to the lower end of the vertical part, extending substantially rearwards the longitudinal direction of the breakdown vehicle and provided with supporting elements for supporting the vehicle to be towed.
  • the tow g de- vice comprises a power means arranged to act between the frame and the boom to turn the boom and the sup ⁇ porting boom about the first horizontal joint axis so that the front or rear end of the vehicle to be towed can be lifted clear of the ground and supported by the boom, permitting the vehicle to be towed by the break ⁇ down vehicle.
  • a problem with the use of prior-art towing devices is that the point at which the load of the ve ⁇ hicle being towed is centred on the supporting boom of the breakdown vehicle lies at a fairly long distance from the point of ground support of the rear wheels of the breakdown vehicle, with the result that the mass centre of the vehicle combination of breakdown vehicle and towed vehicle is shifted considerably rearwards and the load of the towed vehicle develops a large torque tending to turn the breakdown vehicle about the point of ground support of its rear wheels and to lift the front wheels of the breakdown vehicle off the ground.
  • the object of the invention is to eliminate the above-mentioned drawbacks.
  • a specific object of the invention is to pre ⁇ sent a simple, cheap and easy-to-use towing device which allows the breakdown vehicle to be used with ad ⁇ ditional weights considerably smaller than before or without any additional weights at all without essen ⁇ tially reducing the controllability or steerability of the breakdown vehicle, making it possible to increase the carrying capacity of the breakdown vehicle and to tow heavier loads with it.
  • the towmg device of the invention is charac ⁇ terized by what is presented claim 1.
  • the supporting boom is so designed that it can be fixedly attached by means of supporting elements to the chassis of the ve ⁇ hicle to be towed so that when the supporting boom has been fixed to a vehicle to be towed, the supporting boom and the vehicle to be towed form a continuous as ⁇ sembly rigid against downward forces;
  • the towing de ⁇ vice comprises a vertical joint with a vertical joint axis, disposed in front of the assembly formed by the supporting boom and the vehicle to be towed so that it allows the combination to turn;
  • the supporting boom is pivoted on the vertical part of the boom with a second horizontal joint so that it can turn freely, the joint axis of said horizontal joint lying substan- tially in a horizontal direction transverse to the longitudinal direction of the vehicle.
  • the invention is based on the idea that the vehicle to be towed and the supporting boom attached to it form an assembly which is hauled like a semi-trailer after the breakdown vehicle, said assembly being rigid at least against downward forces, this rigidity being en ⁇ sured e.g. by the weight of the vehicle to be towed, which holds the supporting boom pressed against the vehicle.
  • the invention has the advantage that, due to the joint between the boom and the supporting boom, the load force imposed on the breakdown vehicle by the vehicle being towed always acts in a vertical direc ⁇ tion, being applied to the joint axis of the second horizontal joint, which is located as close as possi ⁇ ble to the breakdown vehicle, so the moment arm is considerably shorter than in prior-art solutions.
  • a breakdown vehicle equipped w th a towing device as provided b the m- vention is therefore able to tow heavier vehicles than before.
  • the supporting elements comprise a first supporting ele- ment and a second supporting element, which are dis ⁇ posed along the length of the supporting boom at a distance from each other; and at least the rearward one of the supporting elements is so designed that it can be fixedly attached to the chassis of the vehicle to be towed.
  • the first supporting element consists of a supporting surface open at the top, a supporting hook or hooks or an equivalent supporting point, on which the vehicle to be towed is held fast by its own weight.
  • the second supporting element may consist of various chains, belts, cables, clasps, latches, hooks and sockets, slots and grooves and equivalent, which may be provided either in the sup ⁇ porting boom or in the vehicle to be towed or in both.
  • the essential feature of the second supporting element is that it keeps the supporting boom connected to the towed vehicle against the force exerted by the weight of the vehicle.
  • the supporting ele ⁇ ments consist of a socket or an equivalent space in the towed vehicle into which the supporting boom is inserted or placed and the second supporting element is a suitable locking device by means of which the supporting boom is locked fast in the socket.
  • the supporting boom is preferably adjustable in length.
  • the supporting boom may be of a construc ⁇ tion permitting shortening and elongation in a tele ⁇ scopic manner.
  • the supporting boom can be attached to the chassis of the vehicle to be towed so that the supporting boom is stiff against downward forces.
  • the telescopic adjust- ment allows the supporting boom to be fitted to dif ⁇ ferent vehicles to be towed.
  • the supporting boom comprises a first supporting boom sec- tion, connected with a second horizontal joint to the vertical part of the boom, and a second supporting boom section, connected with a vertical joint to the first supporting boom section.
  • the device comprises a first set of locking elements for locking the vertical joint rigidly in position.
  • the first set of locking elements may consist of mechani ⁇ cal locking devices, but the locking can also be ef ⁇ fected using a hydraulic cylinder, which, when re- leased, acts as a damper of the horizontal movement of the supporting boom and it can also be used for turn ⁇ ing the supporting boom horizontally.
  • the device comprises a second set of locking elements for locking the second horizontal joint rigidly m posi ⁇ tion.
  • the second locking element is preferably the same hydraulic cylinder that is normally used to raise and lower the supporting boom between a vertical high position and a horizontal low position. In this case, by releasing the hydraulic cylinder durmg towmg, it functions as a damper of the vertical movement.
  • the power means is a pressurized-medium operated power means, such as a hydraulic cylinder, preferably a sin- gle action hydraulic cylinder.
  • the boom and/or the supporting boom is constructed of tu ⁇ bular profiled beams of rectangular cross-section.
  • the rearward second supporting element comprises a bottom support transverse to the supporting boom, designed to support the vehicle to be towed from below, and a de- tachable and attachable flexible tying element con ⁇ nected to the bottom support, designed to be tied around the chassis or a part of it.
  • Fig. 1 presents a diagrammatic side view of an embodiment of the device of the invention, mounted on a breakdown vehicle, as well as a vehicle towed by means of the towmg device, and
  • Fig. 2 presents a perspective view of the em ⁇ bodiment of the towing device presented in Fig. 1, seen obliquely from above.
  • FIGS 1 and 2 show a towing device mounted on a breakdown vehicle for towing another vehicle.
  • the towing device comprises a frame 1 which is fixed to the chassis A of the breakdown vehicle.
  • the towing device comprises a boom 2, which is constructed of a tubular profiled beam of rectangular cross- section.
  • the boom 2 comprises an arm part 2 1 , which is pivoted by its first end 3 on the chassis A by means of a first horizontal joint 4, whose joint axis 5 lies substantially in a horizontal direction transverse to the longitudinal direction of the breakdown vehicle.
  • the boom 2 comprises a vertical part 2 " fixedly connected to the second end 6 of the arm part 2 1 , from which the vertical part 2 " extends downwards in a substantially vertical direction.
  • the supporting boom 7 is connected to the lower end of the vertical part 2 " , extending substantially rearwards the lengthways direction of the breakdown vehicle, the supporting boom 7 being pivoted on the vertical part 2 Z of the boom by means of a second horizontal joint 12, whose joint axis 13 lies a substantially hori- zontal direction transverse to the longitudinal direc ⁇ tion of the breakdown vehicle.
  • a hydraulic cylinder 15 which also acts as a second locking ele ⁇ ment, by means of which the second horizontal joint 12 can be locked m a desired position, e.g. to hold the supporting boom in an upright position durmg trans- port or in a horizontal position when the supporting boom is being moved into position under a vehicle to be towed.
  • the supporting boom 7 comprises supporting elements 8 , 8 for supporting the vehicle to be towed.
  • the supporting boom 7 can be fixedly attached to the chassis B of the vehicle to be towed so that when the supporting boom 7 has been fixed to the vehicle to be towed, the sup ⁇ porting boom 7 and the vehicle to be towed form a con- tinuous, rigid assembly.
  • the towing device comprises a vertical joint 10, whose joint axis 11 lies in a vertical direction and which is disposed in front of the assembly formed by the vehicle to be towed and the supporting boom 7 to allow the combina- tion to turn.
  • the vertical joint 10 is also provided with a first set of locking elements 14 to lock the vertical joint 10 rigidly in position.
  • a power means 9 Disposed between the frame 1 and the boom 2 is a power means 9 for turning the boom 1 and the sup- porting boom 7 about the first horizontal joint 4 to lift the front or rear end of the vehicle to be towed clear of the ground so that its weight is supported by the boom.
  • the power means 9 a pressurized-medium oper ⁇ ated power means, such as a hydraulic cylinder, pref- erably a single action hydraulic cylinder.
  • the supporting boom 7 comprises a first sup ⁇ porting boom section 7 , pivoted with the second hori-
  • the second supporting boom section 7 ⁇ of the supporting boom 7 is of a construction permitting telescopic length adjustment.
  • the supporting boom 7 is composed of tubular profiled beams of rectangular cross-section.
  • the supporting elements 8 1 , 8 2 comprise a first supporting element 8 and a second supporting element 8 which are disposed along the length of the supporting boom 7 at a distance from each other so that the chassis of the vehicle to be towed can be at ⁇ tached to the supporting boom at two points .
  • the for- ward first supporting element 8" comprises a support designed to support the chassis of the vehicle to be towed from below.
  • the rearward supporting element 8 can be fixedly attached to the chassis B of the vehi ⁇ cle to be towed.
  • the rearward or second supporting element 8 also comprises a bottom support 16 trans ⁇ verse to the supporting boom, designed to support the chassis B of the vehicle to be towed from below, and addition a detachable and attachable, flexible ty ⁇ ing element 17, e.g. a chain, belt or the like, which is connected to the bottom support and which can be tied around the chassis B or a part of it.
  • a detachable and attachable, flexible ty ⁇ ing element 17 e.g. a chain, belt or the like, which is connected to the bottom support and which can be tied around the chassis B or a part of it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

Dispositif de remorquage monté sur une dépanneuse et comprenant un cadre (1) fixé à la dépanneuse, une flèche (2) comprenant une partie bras (21) pivotante par sa première extrémité (3) sur le cadre (a) au moyen d'une première articulation horizontale (4) et une partie verticale (22) accouplée fixe à la partie bras, à partir de laquelle ladite partie verticale s'étend vers le bas dans un sens sensiblement vertical, une flèche de support (7) accouplée à l'extrémité inférieure de la partie verticale (22), s'étendant sensiblement vers l'arrière et pourvue d'éléments de support (81, 82) servant à supporter le véhicule à remorquer, ainsi qu'un moyen de puissance (9) entre le cadre et la flèche. La flèche de support (7) peut être fixée au châssis (B) du véhicule à remorquer par l'intermédiaire des éléments de support ( 81, 82), de telle manière que la flèche de support et le véhicule à remorquer constituent un ensemble continu rigide.
EP96938236A 1995-11-14 1996-11-11 Dispositif de remorquage Withdrawn EP0857120A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI955486A FI102362B1 (fi) 1995-11-14 1995-11-14 Hinauslaite
FI955486 1995-11-14
PCT/FI1996/000611 WO1997018104A1 (fr) 1995-11-14 1996-11-11 Dispositif de remorquage

Publications (1)

Publication Number Publication Date
EP0857120A1 true EP0857120A1 (fr) 1998-08-12

Family

ID=8544382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96938236A Withdrawn EP0857120A1 (fr) 1995-11-14 1996-11-11 Dispositif de remorquage

Country Status (4)

Country Link
EP (1) EP0857120A1 (fr)
AU (1) AU7573596A (fr)
FI (1) FI102362B1 (fr)
WO (1) WO1997018104A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8622413B2 (en) 2006-08-09 2014-01-07 Atc Transportation Llc Front tow extended saddle
US8371599B2 (en) 2010-12-14 2013-02-12 L. Thomas Duvall Truck towing system and assembly
GB2566299B (en) 2017-09-07 2019-10-09 Supacat Ltd A vehicle lift device
FR3123837A1 (fr) * 2021-06-10 2022-12-16 Dominique Canovas Ensemble de dépannage-remorquage pour véhicule remorqueur, et véhicule remorqueur le comprenant
FR3141900A1 (fr) * 2022-11-14 2024-05-17 Dominique Canovas Ensemble de dépannage-remorquage perfectionné pour véhicule remorqueur, et véhicule remorqueur le comprenant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473334A (en) * 1981-09-18 1984-09-25 Brown Andrew M Automobile lifting and towing equipment
FR2541951A1 (fr) * 1983-03-02 1984-09-07 Creusot Loire Vehicule de depannage pour engins routiers lourds et procede d'utilisation
GB2198401A (en) * 1986-12-01 1988-06-15 P C M Vehicle recovery unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9718104A1 *

Also Published As

Publication number Publication date
FI955486A0 (fi) 1995-11-14
FI102362B (fi) 1998-11-30
WO1997018104A1 (fr) 1997-05-22
AU7573596A (en) 1997-06-05
FI102362B1 (fi) 1998-11-30
FI955486A (fi) 1997-05-15

Similar Documents

Publication Publication Date Title
US3690482A (en) Vehicle towing device
US5451088A (en) Combination frame-supported box receiver and self-stabilizing bed extension
US4948327A (en) Towing apparatus for coupling to towed vehicle undercarriage
US4929142A (en) Vehicle carrier with wheel lift
US4932830A (en) Motor vehicle and boat trailer
US4068772A (en) Dual load trailer
US20080085176A1 (en) Vehicle accessory hoist
US6068282A (en) Tongue retention and release mechanism
US3826334A (en) Mobile aerial platform
US5803699A (en) Apparatus and method for loading and unloading containers
US4637770A (en) Self-equalizing lifting trailer
US4265585A (en) Loading device for vehicle beds
GB1579540A (en) Trailer loading and unloading system
US4269396A (en) Wrecker-hoist attachment for truck bed
US20020182026A1 (en) Double-deck trailer
US4815915A (en) Under-vehicle towing apparatus
US4383807A (en) Towing vehicle, boom, winching and lifting apparatus
US3825132A (en) Towing and lifting apparatus
WO1996031430B1 (fr) Mecanisme pour le chargement et le dechargement de conteneurs transportes par camion
WO1996031430A3 (fr) Mecanisme pour le chargement et le dechargement de conteneurs transportes par camion
US4712967A (en) Car carrier assembly
EP0857120A1 (fr) Dispositif de remorquage
CA1036631A (fr) Remorque pour le transport d'embarcations
US6203264B1 (en) Boat trailer carrier for over car dolly
US20040161323A1 (en) Vehicular towing apparatus using air lift

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980611

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK FR GB SE

17Q First examination report despatched

Effective date: 19991020

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010320