FR2623447A1 - Towing element, particularly for trailers with a bed - Google Patents

Towing element, particularly for trailers with a bed Download PDF

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Publication number
FR2623447A1
FR2623447A1 FR8716278A FR8716278A FR2623447A1 FR 2623447 A1 FR2623447 A1 FR 2623447A1 FR 8716278 A FR8716278 A FR 8716278A FR 8716278 A FR8716278 A FR 8716278A FR 2623447 A1 FR2623447 A1 FR 2623447A1
Authority
FR
France
Prior art keywords
trailer
towing
bed
towing element
ring
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
FR8716278A
Other languages
French (fr)
Other versions
FR2623447B1 (en
Inventor
Bernard Ledru
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR8716278A priority Critical patent/FR2623447B1/en
Publication of FR2623447A1 publication Critical patent/FR2623447A1/en
Application granted granted Critical
Publication of FR2623447B1 publication Critical patent/FR2623447B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60DVEHICLE CONNECTIONS
    • B60D1/00Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/01Traction couplings or hitches characterised by their type
    • B60D1/02Bolt or shackle-type couplings

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Agricultural Machines (AREA)

Abstract

Towing element, particularly for a trailer with a bed, interacting with a box 3 secured to a hitch 4 which can move rotationally about a horizontal spindle 5 fixed to the drawbar 6 of a trailer to be towed. Its front part consists of a ring 1 which is extended towards the rear by a rod whose back part includes a heel 61 which is cast and then machined to the sides, the latter bearing on components 62, 63 located inside the box 3.

Description

ELEMENT DE REMORQUAGE NOTAMMENT POUR REMORQUES A
PLATEAU.
TOWING ELEMENT, ESPECIALLY FOR TRAILERS
TRAY.

La présente invention se rapporte à un élément de remorquageS notamment du type permettant de relier une remorque à plateau à un tracteur.The present invention relates to a towing element, in particular of the type enabling a flatbed trailer to be connected to a tractor.

On connaît délà de tels éléments constitués drun anneau, prolongé par une queue filetée, solidarisé à un boîtier fixé par un bras articulé prolongeant la remorque à tracter, au moyen d' un écrou traverse' par une goupille.There are known such elements consisting of a ring, extended by a threaded tail, secured to a housing fixed by an articulated arm extending the trailer to be towed, by means of a nut traversed by a pin.

Toutefois dans certaines situations telles que traction violente, démarrage, accélération ou décélération, passage de déformations du sol, des contraintes mécaniques considérables s' exercent au niveau de la tige filetée et de I' écrou, entraînant leur détérioration et le cisaillement de la goupille.However in certain situations such as violent traction, starting, acceleration or deceleration, passage of deformations of the ground, considerable mechanical stresses are exerted at the level of the threaded rod and of the nut, causing their deterioration and the shearing of the pin.

On peut ainsi assister à la désolidarisation de 1' anneau du boîtier provoquant la rupture des attelages et la dérive de la remorque.It is thus possible to witness the separation of the ring from the housing, causing the coupling to break and the trailer to drift.

Pour éviter une telle situation, I' utilisation de ce type d'assemblage implique de fréquents démontages périodiques pour le contr8le du serrage de 1' écrou, de la présence et de 1' état de la goupille, etc.To avoid such a situation, the use of this type of assembly involves frequent periodic disassembly for checking the tightening of the nut, the presence and condition of the pin, etc.

La présente invention a pour but de pallier les inconvénients ciVessus par 1' utilisation d'un nouveau type d'assemblage, qui sera maintenant décrit à titre d' exemple non limitatif au regard des figures 1 à 6 ci-lointes, se rapportant respectivement - la figure 1, à une vue en coupe longitudinale de l'ensemble de
I' assemblage selon 1' état antérieur de la technique, - la figure 2, à une vue en plan du dispositif de la figure i, - la figure 3, à l'anneau d'assemblage de la figure B vu en détail, - la figure 4, à une vue en coupe longitudinale de l'ensemble de
l'assemblage selon l'invention, - la figure 5, à une vue en plan du dispositif de la figure 4, - la figure 6, à un détail de l'assemblage selon la vue de la figure 4.
The present invention aims to overcome the disadvantages ciVessus by 1 use of a new type of assembly, which will now be described by way of nonlimiting example with regard to Figures 1 to 6 below, relating respectively - Figure 1, in a longitudinal sectional view of the assembly of
I 'assembly according to the prior art, - Figure 2, to a plan view of the device of Figure i, - Figure 3, to the assembly ring of Figure B seen in detail, - Figure 4, a longitudinal sectional view of the assembly of
the assembly according to the invention, - Figure 5, a plan view of the device of Figure 4, - Figure 6, a detail of the assembly according to the view of Figure 4.

En référence aux figures 1, 2 et 3, on voit un anneau de remorquage I solidarisé par sa partie postérieure 2 à un boîtier 3 solidaire d' un attelage 4 mobile en rotation autour d' un axe horizontal 5 fixé au timon 6 de la remorque à tracter.With reference to FIGS. 1, 2 and 3, we see a towing ring I secured by its rear part 2 to a housing 3 secured to a hitch 4 movable in rotation about a horizontal axis 5 fixed to the drawbar 6 of the trailer to tow.

La solidarisation ci-dessus est effectuée par l'intermédiaire du boîtier 3 à l'intérieur duquel est solidarisé un fourreau 7, traversé par la queue 2 de l'anneau de remorquage dont 1' extrémité filetée reçoit l'écrou 8.The above connection is effected by means of the housing 3 inside which a sleeve 7 is secured, crossed by the tail 2 of the towing ring, the threaded end of which receives the nut 8.

Les rebords de ce dernier prennent appui, par l'intermédiaire d' une rondelle 9 sur l'épaulement du fourreau 7. Une goupille 10 traverse l'écrou 8 et la partie filetée de l'élément 2 de remorquage afin d' assurer leur verrouillage. La faiblesse de l'assemblage ci-dessus se situe donc au niveau des filetages et de la goupille 10, qui peuvent se rompre sous l'action des fortes contraintes évoquées précédemment.The edges of the latter bear, via a washer 9 on the shoulder of the sheath 7. A pin 10 passes through the nut 8 and the threaded part of the towing element 2 in order to ensure their locking . The weakness of the above assembly is therefore at the threads and the pin 10, which can break under the action of the strong stresses mentioned above.

L'objet de l'invention se situe dans un nouvel élément de remorquage visible aux figures 4 et 5 et en détail à la figure 6. The object of the invention is located in a new towing element visible in FIGS. 4 and 5 and in detail in FIG. 6.

On retrouve la disposition générale de nombreux éléments constituant
I' assemblage précédent - le boîtier 3, - 1' attelage 4, - l'axe horizontal 5, - le timon 6 de la remorque.
We find the general arrangement of many elements constituting
I 'previous assembly - the housing 3, - 1 hitch 4, - the horizontal axis 5, - the drawbar 6 of the trailer.

Par contre, un changement intervient au niveau de la structure de la partie postérieure 60 de l'anneau de remorquage 1, vu en détail à la figure 6 ; cette dernière comporte un talon 61, venu de fonderie puis usiné aux cotes, qui remplace le système antérieur de vis > écrou - rondelle - goupille, particulièrement fragile au niveau du filetage, et supprime le démontage périodique de vérification. La pièce ci-dessus
coopère avec le boîtier 3 qui comporte à à intérieur des pièces d'appui
62 - 63 pour la tête 61 de la pièce 60.
By cons, a change occurs at the structure of the rear part 60 of the towing eye 1, seen in detail in Figure 6; the latter comprises a heel 61, which came from the foundry and then machined at the sides, which replaces the previous system of screw> nut - washer - pin, particularly fragile at the level of the thread, and eliminates the periodic disassembly of verification. The room above
cooperates with the housing 3 which has inside support parts
62 - 63 for the head 61 of the part 60.

Des essais de résistance à la traction effectués sur 1' élément de
remorquage selon l'invention ont montré qu' audelà de 120 tonnes de
traction, c' est 1' anneau 1 lui-même qui cède et non sa partie
postérieure coopérant avec le boîtier 3, contrairement aux produits
homologues selon la technique antérieure.
Tensile strength tests performed on the element
towing according to the invention have shown that beyond 120 tonnes of
traction, it is the ring 1 itself which yields and not its part
rear cooperating with the housing 3, unlike the products
counterparts according to the prior art.

Claims (1)

REVENDICATIONCLAIM Elément de remorquage, notamment pour remorque à plateau, coopérant avec un boîtier (3) solidaire d' un attelage (4) mobile en rotation autour un un axe horizontal (5) fixé au timon (6) d'une remorque à tracter, caractérisé par le fait que sa partie antérieure est constituée par un anneau (I) qui se prolonge vers j'arrière par une tige dont la partie postérieure comporte un talon (61) venu de fonderie puis usiné aux cotes, ce dernier prenant appui sur des pièces (62 - 63) disposées à l'intérieur du bottier (3). Towing element, in particular for flatbed trailer, cooperating with a housing (3) integral with a hitch (4) movable in rotation about a horizontal axis (5) fixed to the drawbar (6) of a towing trailer, characterized by the fact that its front part is constituted by a ring (I) which is extended towards the rear by a rod, the rear part of which comprises a heel (61) coming from foundry then machined at the sides, the latter resting on parts (62 - 63) arranged inside the case (3).
FR8716278A 1987-11-24 1987-11-24 TOWING ELEMENT, ESPECIALLY FOR PLATFORM TRAILERS Expired - Fee Related FR2623447B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8716278A FR2623447B1 (en) 1987-11-24 1987-11-24 TOWING ELEMENT, ESPECIALLY FOR PLATFORM TRAILERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8716278A FR2623447B1 (en) 1987-11-24 1987-11-24 TOWING ELEMENT, ESPECIALLY FOR PLATFORM TRAILERS

Publications (2)

Publication Number Publication Date
FR2623447A1 true FR2623447A1 (en) 1989-05-26
FR2623447B1 FR2623447B1 (en) 1991-04-19

Family

ID=9357109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8716278A Expired - Fee Related FR2623447B1 (en) 1987-11-24 1987-11-24 TOWING ELEMENT, ESPECIALLY FOR PLATFORM TRAILERS

Country Status (1)

Country Link
FR (1) FR2623447B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978134A (en) * 1989-08-24 1990-12-18 Dahl Dean R Foldable towing hitch for vehicles
EP0405231A2 (en) * 1989-06-28 1991-01-02 Ringfeder GmbH Towbar for vehicle trailers
FR2682324A1 (en) * 1991-10-14 1993-04-16 Pommier & Cie Hitching ring for a trailer drawbar
US5346245A (en) * 1993-08-10 1994-09-13 Barker Manufacturing Company, Inc. Portable tank with extending handle
EP2080644A1 (en) * 2008-01-18 2009-07-22 Redrock Engineering limited A swivel hitch
US9415647B2 (en) * 2013-12-10 2016-08-16 Teleswivel, Llc Adjustable height hitch apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1680236A (en) * 1927-01-15 1928-08-07 Harry C Zimmerman Draft coupling
US2471636A (en) * 1945-07-30 1949-05-31 William E Martin Trailer connection
FR1253320A (en) * 1959-12-30 1961-02-10 Grau Brake System Co With Ltd Traction goggles for trailer drawbars, stretchers, slip brakes and the like
DE1982831U (en) * 1968-01-17 1968-04-04 Rockinger Spezial Fab Joh TRAILER HITCH.
DE6910130U (en) * 1969-03-10 1969-10-16 Fendt & Co Xaver TRAILER HITCH
US3552775A (en) * 1968-03-06 1971-01-05 Richard E Warner Trailer hitch coupling

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1680236A (en) * 1927-01-15 1928-08-07 Harry C Zimmerman Draft coupling
US2471636A (en) * 1945-07-30 1949-05-31 William E Martin Trailer connection
FR1253320A (en) * 1959-12-30 1961-02-10 Grau Brake System Co With Ltd Traction goggles for trailer drawbars, stretchers, slip brakes and the like
DE1982831U (en) * 1968-01-17 1968-04-04 Rockinger Spezial Fab Joh TRAILER HITCH.
US3552775A (en) * 1968-03-06 1971-01-05 Richard E Warner Trailer hitch coupling
DE6910130U (en) * 1969-03-10 1969-10-16 Fendt & Co Xaver TRAILER HITCH

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405231A2 (en) * 1989-06-28 1991-01-02 Ringfeder GmbH Towbar for vehicle trailers
EP0405231A3 (en) * 1989-06-28 1992-01-08 Ringfeder G.M.B.H. Towbar for vehicle trailers
US4978134A (en) * 1989-08-24 1990-12-18 Dahl Dean R Foldable towing hitch for vehicles
FR2682324A1 (en) * 1991-10-14 1993-04-16 Pommier & Cie Hitching ring for a trailer drawbar
US5346245A (en) * 1993-08-10 1994-09-13 Barker Manufacturing Company, Inc. Portable tank with extending handle
EP2080644A1 (en) * 2008-01-18 2009-07-22 Redrock Engineering limited A swivel hitch
US9415647B2 (en) * 2013-12-10 2016-08-16 Teleswivel, Llc Adjustable height hitch apparatus

Also Published As

Publication number Publication date
FR2623447B1 (en) 1991-04-19

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ST Notification of lapse

Effective date: 20070731