WO1992020540A1 - Barre de remorquage - Google Patents

Barre de remorquage Download PDF

Info

Publication number
WO1992020540A1
WO1992020540A1 PCT/GB1992/000851 GB9200851W WO9220540A1 WO 1992020540 A1 WO1992020540 A1 WO 1992020540A1 GB 9200851 W GB9200851 W GB 9200851W WO 9220540 A1 WO9220540 A1 WO 9220540A1
Authority
WO
WIPO (PCT)
Prior art keywords
sections
towbar
male
female
section
Prior art date
Application number
PCT/GB1992/000851
Other languages
English (en)
Inventor
Graham Woodruff
Original Assignee
Graham Woodruff
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
Priority claimed from GB919110326A external-priority patent/GB9110326D0/en
Application filed by Graham Woodruff filed Critical Graham Woodruff
Publication of WO1992020540A1 publication Critical patent/WO1992020540A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/14—Draw-gear or towing devices characterised by their type
    • B60D1/145—Draw-gear or towing devices characterised by their type consisting of an elongated single bar or tube
    • B60D1/155—Draw-gear or towing devices characterised by their type consisting of an elongated single bar or tube comprising telescopic or foldable parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/02—Releasable fastening devices locking by rotation
    • F16B21/04—Releasable fastening devices locking by rotation with bayonet catch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections

Definitions

  • the present invention relates to a towbar and more specifically to a portable rigid towbar which may be assembled from multiple lockable sections.
  • Rigid towbars used by towing vehicles are generally long, heavy items, which are difficult to store.
  • rigid towbars may be provided in two sections, the sections being coupled together when in use.
  • Smaller vehicles used for occasional towing, such as in an emergency often use flexible towropes of rope or wire.
  • the flexible type of towrope has a clear advantage for the motorist in that it is eas ly portable and can be conveniently stored in the vehicle.
  • the flexible towrope is convenient for storage, its towing performance is inferior to that of a rigid bar (particularly when the towing vehicle is braking). It would therefore be desirable to have a rigid towbar with the portability of a towrope. This would be especially useful to such as four wheel drive vehicles which may be required for towing, but which are generally used as all purpose vehicles, so that storage of a conventional towbar would not be practical .
  • the present invention provides a towbar comprising a plurality of sections which lock together to form a single length, the two sections at opposite ends of the assembled towbar having couplings to attach to respective vehicles and the adjoining ends of adjacent assembled sections each comprising a connecting member, one male and one female, one of the connecting members includes a locking member which locks the male connecting member within the female connecting member.
  • Adjacent sections may be locked together using a bayonet type fitting whereby the male end is inserted into the female end, projections on the male end being located into slots in the female end, and twisted relative to the female end.
  • the twisting motion causes each projection on the male end to pass into a locking part of the slot and the locking member engages behind one or each projection to prevent twisting in an opposite direction.
  • sections may be locked together using a fitting whereby the male end is inserted into the female end a bolt is placed through matching holes in both sections.
  • Each section may comprise a plurality of tubular members of substantially the same length fitted within one another but displaced axial!y with respect to one another and preferably connected to one another by means such as a rivet, welding, adhesive of crimping.
  • Figure 1 is a perspective view of adjoining ends of sections of a towbar before assembly according to a first embodiment of the invention
  • Figure 2 is a part axial section of the parts shown in Figure 1 ;
  • Figure 3 is a transverse section on line B...B of Figure 1 but with the sections assembled;
  • Figure 4 is a perspective view of a towbar section according to a second embodiment of the invention.
  • Figure 5 is a perspective view of one example of coupling;
  • Figure 6 is a plan view of an assembled towbar made up of 5 sections as shown in Figure 4.
  • a towbar comprising a plurality of sections which lock together to form a single length, the two sections at opposite ends of the assembled towbar having couplings to attach to respective vehicles.
  • FIG 1 shows the male and female ends (1,2) of two adjacent towbar sections.
  • Each towbar section has a female end (1) and a male end (2).
  • Female end (1) comprises a collar (3) which is permanently connected ( e.g. by welding ) onto one end of the tubular steel towbar section (4a) and a locking member (6).
  • the collar (3) has two similar shaped slots (5) positioned 180 degrees apart.
  • the slots are L shaped having an entry part (5a) parallel to the axis and a locking part (5b) extending transversely to the axis connected by a 90 degree corner.
  • the Male end (2) of adjacent towbar section (4b) includes projections (13) which protrude oppositely from the towbar section (4b).
  • the projections (13) may be provided by a pin which fits through opposed holes in the towbar section (4b) and protrudes at both sides of the towbar section (4b).
  • the locking member (6) which is shown in more detail in figure 2, comprises a locking pin (7) suitably mounted in a tubular member (10), a resilient member in the form of a spring (8) and release catch (9).
  • the locking member is shown as positioned within the towbar section (4a), however, it may also be positioned on the outside of the towbar section (4a).
  • the locking pin (7) is resiliently urged to an extended position by the spring (8). Retraction of the locking pin is achieved by movement of the release catch in a direction so as to compress the spring.
  • the couplings may be flexible and may comprise a ball and socket joint.
  • the locking pin To release the sections the locking pin must be retracted by pulling on the release catch and the male end twisted and pulled in the opposite direction.
  • the overall length of the towbar may be approximately 2.5 metres, made up of 6 sections each of approximatel 0.42 metres.
  • the sections are not necessarily of equal length, although this is desirable for ease of storage.
  • the collars (3) may be made from tubular steel or aluminium and the tubular towbar sections may be formed from steel or aluminium of lesser diameter.
  • the collars may be joined onto the tubular towbar sections using a welding technique such as friction welding.
  • Figure 4 shows a towbar section of a second embodiment of the invention with a male end (20) and female end (21).
  • the section comprises three tubular subsections (22,23,24) which are each of the same length but of different cross sectional areas. Although the cross section is shown as square it may equally be round.
  • the three tubular subsections are positioned so that the tubular subsection of smallest cross section (22) is partially inside the tubular subsection of next largest cross section (23) which is in turn positioned partially inside the tubular subsection of largest cross section (24).
  • the outside cross-section of each tubular subsection is substantially the same as the inside cross-section of the next largest tubular subsection so that they are a snug fit within each other.
  • Two thirds of the length of each of the two tubular subsections is inside its next largest tubular subsection.
  • the three tubular subsections which make up one section which may be, for example of steel or aluminium are permanently fixed together using rivets (25) or any other suitable fixing such as welding (at the exposed cut edges of the tubular subsections), adhesive
  • a towbar may be assembled which is made up of multiple sections.
  • the two sections on either end of the towbar have a coupling (see for example coupling 27 in figure 5) on their unconnected end, the coupling being suitable for joining to the respective vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Connection Of Plates (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

On décrit une barre de remorquage comprenant une multiplicité de parties qui se verrouillent réciproquement pour former une seule longueur, les deux parties situées aux extrémités opposées de la barre assemblée comportant des éléments d'accouplement devant être fixés à des véhicules respectifs, et les extrémités contiguës des parties adjacentes assemblées comprenant chacune un élément de raccordement mâle (1; 20) et femelle (2; 21) respectivement, l'un des éléments de raccordement étant pourvu d'un élément de verrouillage (5; 26) qui permet de verrouiller l'élément mâle dans l'élément femelle.
PCT/GB1992/000851 1991-05-13 1992-05-12 Barre de remorquage WO1992020540A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9110326.7 1991-05-13
GB919110326A GB9110326D0 (en) 1991-05-13 1991-05-13 Towbar
GB919125936A GB9125936D0 (en) 1991-05-13 1991-12-05 Towbar
GB9125936.6 1991-12-05

Publications (1)

Publication Number Publication Date
WO1992020540A1 true WO1992020540A1 (fr) 1992-11-26

Family

ID=26298896

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000851 WO1992020540A1 (fr) 1991-05-13 1992-05-12 Barre de remorquage

Country Status (3)

Country Link
EP (1) EP0584150A1 (fr)
CA (1) CA2102690A1 (fr)
WO (1) WO1992020540A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704483A1 (fr) * 1993-04-28 1994-11-04 Rapide Dispositif de fixation d'une remorque à un véhicule tracteur.
GB2284189A (en) * 1993-07-15 1995-05-31 David James Anderson Collapsible vehicle draw-bar
GB2286165A (en) * 1994-02-02 1995-08-09 Warehouse Interiors Limited Vehicle towing bar
FR2720681A1 (fr) * 1994-06-03 1995-12-08 Sidel Sa Tournette et machine de fabrication de récipients à partir de préformes utilisant au moins une telle tournette.
GB2308580A (en) * 1995-12-27 1997-07-02 Joseph Robert Millington An extendable tow bar
GB2369665A (en) * 2000-11-29 2002-06-05 Sgb Services Ltd Connection arrangement for scaffolding
US7168201B2 (en) * 2003-09-04 2007-01-30 Eagle Mountain Brokers, Inc. Connector assembly for a fishing pole
EP2141367A1 (fr) * 2008-06-30 2010-01-06 Fox International Group Limited Dispositif de liaison
FR2985554A1 (fr) * 2012-01-10 2013-07-12 Wichard Dispositif de connexion mecanique pour relier une charge a un support
GB2600117A (en) * 2020-10-21 2022-04-27 Flex Marine Power Ltd Marine connector apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510201A (en) * 1938-03-02 1939-07-28 Samuel Heath & Sons Ltd Improvements in garment supporting rails
GB2059896A (en) * 1979-10-10 1981-04-29 Clifton R J Improvements in or relating to vehicle recovery tow bars
GB2122962A (en) * 1982-06-25 1984-01-25 Teleto Limited Vehicle tow-bar
FR2586623A1 (fr) * 1985-09-05 1987-03-06 Guillemaud Dominique Barre de remorquage de vehicule
US4679959A (en) * 1986-10-16 1987-07-14 The United States Of America As Represented By The Secretary Of The Army Quick-connect/disconnect connector
GB2217281A (en) * 1988-04-13 1989-10-25 Constantin Mosteanu A collapsible towing bar for a road vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510201A (en) * 1938-03-02 1939-07-28 Samuel Heath & Sons Ltd Improvements in garment supporting rails
GB2059896A (en) * 1979-10-10 1981-04-29 Clifton R J Improvements in or relating to vehicle recovery tow bars
GB2122962A (en) * 1982-06-25 1984-01-25 Teleto Limited Vehicle tow-bar
FR2586623A1 (fr) * 1985-09-05 1987-03-06 Guillemaud Dominique Barre de remorquage de vehicule
US4679959A (en) * 1986-10-16 1987-07-14 The United States Of America As Represented By The Secretary Of The Army Quick-connect/disconnect connector
GB2217281A (en) * 1988-04-13 1989-10-25 Constantin Mosteanu A collapsible towing bar for a road vehicle

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704483A1 (fr) * 1993-04-28 1994-11-04 Rapide Dispositif de fixation d'une remorque à un véhicule tracteur.
GB2284189A (en) * 1993-07-15 1995-05-31 David James Anderson Collapsible vehicle draw-bar
GB2286165A (en) * 1994-02-02 1995-08-09 Warehouse Interiors Limited Vehicle towing bar
FR2720681A1 (fr) * 1994-06-03 1995-12-08 Sidel Sa Tournette et machine de fabrication de récipients à partir de préformes utilisant au moins une telle tournette.
WO1995033616A1 (fr) * 1994-06-03 1995-12-14 Sidel S.A. Mandrin de transport rapidement interchangeable pour preforme de recipient et utilisation de ce mandrin
GB2308580A (en) * 1995-12-27 1997-07-02 Joseph Robert Millington An extendable tow bar
GB2369665A (en) * 2000-11-29 2002-06-05 Sgb Services Ltd Connection arrangement for scaffolding
GB2369665B (en) * 2000-11-29 2003-08-27 Sgb Services Ltd Improvements in or relating to a connection arrangement
US7168201B2 (en) * 2003-09-04 2007-01-30 Eagle Mountain Brokers, Inc. Connector assembly for a fishing pole
EP2141367A1 (fr) * 2008-06-30 2010-01-06 Fox International Group Limited Dispositif de liaison
FR2985554A1 (fr) * 2012-01-10 2013-07-12 Wichard Dispositif de connexion mecanique pour relier une charge a un support
EP2615313A1 (fr) * 2012-01-10 2013-07-17 Wichard Dispositif de connexion mécanique pour relier une charge à un support
GB2600117A (en) * 2020-10-21 2022-04-27 Flex Marine Power Ltd Marine connector apparatus
GB2600117B (en) * 2020-10-21 2024-03-13 Flex Marine Power Ltd Marine connector apparatus

Also Published As

Publication number Publication date
CA2102690A1 (fr) 1992-11-14
EP0584150A1 (fr) 1994-03-02

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