FR2701802A1 - PTO guard for tractor - Google Patents

PTO guard for tractor Download PDF

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Publication number
FR2701802A1
FR2701802A1 FR9302142A FR9302142A FR2701802A1 FR 2701802 A1 FR2701802 A1 FR 2701802A1 FR 9302142 A FR9302142 A FR 9302142A FR 9302142 A FR9302142 A FR 9302142A FR 2701802 A1 FR2701802 A1 FR 2701802A1
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FR
France
Prior art keywords
joint
protector
tractor
bracket
pto
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
FR9302142A
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French (fr)
Other versions
FR2701802B1 (en
Inventor
Bihan Rene
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TONALIS
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TONALIS
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Publication date
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Priority to FR9302142A priority Critical patent/FR2701802B1/en
Publication of FR2701802A1 publication Critical patent/FR2701802A1/en
Application granted granted Critical
Publication of FR2701802B1 publication Critical patent/FR2701802B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
    • A01B71/08—Means for protecting against dust, or the like, or for cleaning agricultural implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0866—Protective coverings for parts of machine tools; Splash guards using covering means adaptable to the workpieces, e.g. curtains or bristles

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

PTO (Power take-off) guard for a tractor, for the type of PTO which uses a cardan-type transmission joint, characterised in that it consists of two flexible layers (7) each arranged on either side of the joint (6) and suspended from a bracket (8) extending above the said joint.

Description

La présente invention est relative à un protecteur de prise de force pour tracteur. The present invention relates to a PTO protector for a tractor.

On sait que les tracteurs agricoles ont tous une prise de force pour transmettre l'énergie mécanique nécessaire au fonctionnement du véhicule tracté, ci-après dénommé "Ia remorque". It is known that agricultural tractors all have a power take-off to transmit the mechanical energy necessary for the operation of the towed vehicle, hereinafter referred to as "the trailer".

Pour adapter l'arbre menant à l'arbre mené de la remorque, il est nécessaire de faire appel à un joint de transmision à la Cardan. To adapt the shaft leading to the driven shaft of the trailer, it is necessary to use a Cardan joint.

Ce joint tournant est la cause de nombreux accidents, dont certains sont très graves. De ce fait, la législation française a imposé l'utilisation de protecteurs qui empêchent l'usager d'accéder à la partie tournante du joint. This rotating joint is the cause of many accidents, some of which are very serious. As a result, French law has imposed the use of protectors which prevent the user from accessing the rotating part of the joint.

L'expérience a montré que ces protecteurs étaient très fragiles et ne résistaient guère à des manipulations répétées. L'expérience a montré, aussi, que la plupart des usagers étaient très négligents et ne remplaçaient pas un protecteur endommagé. Experience has shown that these protectors are very fragile and do not withstand repeated handling. Experience has also shown that most users are very careless and do not replace a damaged protector.

La présente invention est relative à un protecteur pour joint de transmission et il est remarquable en ce qu'il est constitué par deux cloisons souples, disposées de part et d'autre du joint, suspendues sous une potence disposée au-dessus dudit joint. The present invention relates to a protector for a transmission joint and it is remarkable in that it consists of two flexible partitions, arranged on either side of the joint, suspended under a bracket disposed above said joint.

De préférence, on utilise la potence de support des flexibles acheminant le fluide hydraulique nécessaire au fonctionnement des vérins de commande des différents organes de la remorque. Preferably, use is made of the support bracket for the hoses conveying the hydraulic fluid necessary for the operation of the control jacks of the various components of the trailer.

Chaque paroi est constituée par une pluralité de bandes souples qui se chevauchent. Each wall is formed by a plurality of overlapping flexible strips.

La présente invention sera mieux comprise par la description qui va suivre faite en se référant au dessin annexé à titre d'exemple indicatif seulement sur lequel
-la figure 1 est une vue partielle, en élévation, montrant une remorque attelée à un véhicule tracteur, l'ensemble étant pourvu du protecteur de l'invention;
-la figure 2 est une vue en coupe, à plus grande échelle, effectuée selon la ligne II-II de la figure 1.The present invention will be better understood from the description which follows made with reference to the attached drawing by way of indicative example only, in which
FIG. 1 is a partial view, in elevation, showing a trailer coupled to a tractor vehicle, the assembly being provided with the guard of the invention;
FIG. 2 is a sectional view, on a larger scale, taken along line II-II of FIG. 1.

En se reportant au dessin, on voit que le véhicule tracteur est désigné par 1 et que la remorque, en l'occurence une tonne à lisier, est désignée par 2.  Referring to the drawing, it can be seen that the towing vehicle is designated by 1 and that the trailer, in this case a slurry tanker, is designated by 2.

Le timon 3 de la remorque supporte un compresseur 4, permettant d'effectuer le remplissage et la vidange de la tonne, entraîné par la prise de force 5 du tracteur par l'entremise d'un joint de transmission 6, à la
Cardan.The drawbar 3 of the trailer supports a compressor 4, making it possible to fill and empty the ton, driven by the PTO 5 of the tractor via a transmission joint 6, at the
Cardan.

Ce joint tournant 6 est très dangereux aussi la législation impose qu' il soit pourvu d'un protecteur. Généralement ce protecteur est rapidement détérioré et démonté par l'utilisateur qui ne le remplace pas. Certain utilisateurs ôtent de façon définitive le protecteur pour accéder plus rapidement au joint. This rotating joint 6 is very dangerous also the legislation requires that it be provided with a protector. Generally this protector is quickly damaged and dismantled by the user who does not replace it. Some users permanently remove the protector to access the seal more quickly.

Le protecteur de l'invention a pour but de lutter contre ces pratiques dangereuses. The purpose of the protector of the invention is to combat these dangerous practices.

Le protecteur de l'invention est constitué par deux nappes souples 7 disposées, chacune, de part et d'autre du joint 6 dont l'axe est schématisé en 6a sur la figure 2. The protector of the invention consists of two flexible plies 7, each arranged on either side of the seal 6, the axis of which is shown diagrammatically at 6a in FIG. 2.

Chaque nappe est rendue solidaire par son bord supérieur d'une potence 8 s'étendant au-dessus du joint. La potence 8 peut être portée soit par le véhicule tracteur soit par la remorque. Each ply is made integral by its upper edge with a bracket 8 extending above the joint. The bracket 8 can be carried either by the towing vehicle or by the trailer.

Selon une caractéristique de l'invention, la potence usuelle de support des flexibles 9 d'acheminement du fluide hydraulique nécessaire au fonctionnement des différents vérins de la remorque, est utilisée pour supporter les deux nappes constituant le protecteur de l'invention, comme cela ressort des figures du dessin qui illustre ce cas particulier mais très avantageux. According to a characteristic of the invention, the usual bracket for supporting the hoses 9 for conveying the hydraulic fluid necessary for the operation of the various cylinders of the trailer, is used to support the two plies constituting the protector of the invention, as is apparent figures of the drawing which illustrates this particular but very advantageous case.

Selon une autre caractéristique de l'invention, chaque nappe 7 est constituée par une pluralité de bandes 7a, verticales. Les bandes 7a sont assemblées de façon à ce que le bord vertical de l'une recouvre le bord de la bande adjacente. According to another characteristic of the invention, each ply 7 is formed by a plurality of vertical strips 7a. The strips 7a are assembled so that the vertical edge of one covers the edge of the adjacent strip.

D'une façon générale, les bandes précitées sont réalisées dans une matière plastique résistante mais suffisamment souple pour pouvoir être soulevées en vue d'accéder au joint 6. In general, the aforementioned bands are made of a resistant plastic material but flexible enough to be able to be lifted in order to access the seal 6.

Un avantage important du protecteur de l'invention est d'être totalement indépendant du joint, l'accès à ce dernier ne nécessitant pas le démontage du protecteur.  An important advantage of the protector of the invention is to be completely independent of the seal, access to the latter not requiring the dismantling of the protector.

Claims (4)

REVENDICATIONS 1- Protecteur de prise de force de tracteur du genre de celle faisant appel à un joint de transmission à la Cardan, caractérisé en ce qu'il est constitué par deux nappes souples (7) disposées, chacune, de part et d'autre du joint (6) et suspendues sous une potence (8) s'étendant au-dessus dudit joint. 1- Tractor PTO protector of the same type as that using a cardan joint, characterized in that it is constituted by two flexible plies (7), each arranged on either side of the joint (6) and suspended under a bracket (8) extending above said joint. 2- Protecteur selon la revendication 1, caractérisé en ce que la potence (8) est celle habituellement utilisée pour assurer le support des flexibles d'acheminement du fluide hydraulique. 2- Protector according to claim 1, characterized in that the bracket (8) is that usually used to provide support for the hoses for conveying the hydraulic fluid. 3-Protecteur selon l'une quelconque des revendications 1 et 2, carctérisé en ce que chaque nappe souple est constituée par une pluralité de bandes verticales (7a). 3-Protector according to any one of claims 1 and 2, characterized in that each flexible sheet is constituted by a plurality of vertical strips (7a). 4-Protecteur selon la revendication 3, caractérisé en ce que l'un  4-Protector according to claim 3, characterized in that one des bords verticaux de chaque bande est recouvert par le bord de la vertical edges of each strip is covered by the edge of the bande adjacente.  adjacent strip.
FR9302142A 1993-02-25 1993-02-25 PTO guard for tractor. Expired - Fee Related FR2701802B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9302142A FR2701802B1 (en) 1993-02-25 1993-02-25 PTO guard for tractor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9302142A FR2701802B1 (en) 1993-02-25 1993-02-25 PTO guard for tractor.

Publications (2)

Publication Number Publication Date
FR2701802A1 true FR2701802A1 (en) 1994-09-02
FR2701802B1 FR2701802B1 (en) 1995-03-31

Family

ID=9444403

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9302142A Expired - Fee Related FR2701802B1 (en) 1993-02-25 1993-02-25 PTO guard for tractor.

Country Status (1)

Country Link
FR (1) FR2701802B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1112056A (en) * 1966-03-31 1968-05-01 Ford Motor Co Tractor having pto guard
AT332738B (en) * 1975-01-24 1976-10-11 Eumig PROTECTIVE DEVICE
US4096789A (en) * 1977-04-06 1978-06-27 Kimball International, Inc. Saw guard
EP0098206A2 (en) * 1982-06-28 1984-01-11 KEARNEY & TRECKER CORPORATION Flexible strip curtain
EP0196263A1 (en) * 1985-03-28 1986-10-01 Kuhn S.A. Agricultural machine with improved power transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1112056A (en) * 1966-03-31 1968-05-01 Ford Motor Co Tractor having pto guard
AT332738B (en) * 1975-01-24 1976-10-11 Eumig PROTECTIVE DEVICE
US4096789A (en) * 1977-04-06 1978-06-27 Kimball International, Inc. Saw guard
EP0098206A2 (en) * 1982-06-28 1984-01-11 KEARNEY & TRECKER CORPORATION Flexible strip curtain
EP0196263A1 (en) * 1985-03-28 1986-10-01 Kuhn S.A. Agricultural machine with improved power transmission

Also Published As

Publication number Publication date
FR2701802B1 (en) 1995-03-31

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Effective date: 20061031