FR2560847A1 - Articulated mini-tractor - Google Patents
Articulated mini-tractor Download PDFInfo
- Publication number
- FR2560847A1 FR2560847A1 FR8403729A FR8403729A FR2560847A1 FR 2560847 A1 FR2560847 A1 FR 2560847A1 FR 8403729 A FR8403729 A FR 8403729A FR 8403729 A FR8403729 A FR 8403729A FR 2560847 A1 FR2560847 A1 FR 2560847A1
- Authority
- FR
- France
- Prior art keywords
- tractor
- mini
- wheels
- articulation
- steering
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
- B62D53/021—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit comprising a universal coupling joint
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
La présente invention concerne un mini-tracteur pour les petits travaux de la ferme. The present invention relates to a mini-tractor for small farm work.
Les engins connus dans ce genre et plus particulièrement dans les plus petites dimensions sacrifient le confort du conducteur ou les qualités d'adhérence des roues motrices. En effet, les solutions retenues sur les tracteurs plus importants n'y sont pas retenues. Pour des raisons évidentes d'économie la direction n' est assurée que par des petites roues ou même par une seule roue particulièrement peu efficace. Ces roues s'enfoncent facilement et par suite freinent le tracteur. De plus le bâti du tracteur est rigide : la charge et le conducteur sont soumis aux mêmes réactions négatives du terrain. Les roues directrices, si elles sont deux, se débattent sur une faible amplitude. Il s'ensuit, lorsqu'une seule roue porte, un report en diagonale de la charge donc une diminution de l'adhérence d'une des deux roues motrices et ainsi un patinage rapide.Le problème de diminution de l'efficacité de l'entraînement des roues motrices se ressent aussi dans le cas d'une seule roue directrice quand le conducteur désire tourner du côté où le tracteur penche. La roue directrice gratte le sol près de son flanc au lieu de rouler nettement sur sa bande de roulement. The known machines in this genre and more particularly in the smallest dimensions sacrifice the comfort of the driver or the grip qualities of the drive wheels. In fact, the solutions adopted on larger tractors are not retained there. For obvious reasons of economy, the steering is only ensured by small wheels or even by a single wheel which is particularly ineffective. These wheels sink easily and consequently brake the tractor. In addition, the tractor frame is rigid: the load and the driver are subject to the same negative reactions from the terrain. The steering wheels, if there are two of them, struggle over a small amplitude. It follows, when a single wheel carries, a diagonal transfer of the load therefore a decrease in the grip of one of the two driving wheels and thus a fast skating. The problem of reduction of the efficiency of the Driving the drive wheels is also felt in the case of a single steering wheel when the driver wishes to turn to the side where the tractor leans. The steering wheel scrapes the ground near its side instead of rolling clearly on its tread.
Enfin le trajet des roues directrices étant différent des roues motrices, ces tracteurs n'utilisent pas au mieux leur étroitesse en virage serré entre des obstacles ou dans des ouvertures.Finally, the path of the steering wheels being different from the driving wheels, these tractors do not make the best use of their narrowness in tight turns between obstacles or in openings.
Le tracteur selon l'invention remédie à ces inconvénients en regroupant deux solutions connues sur divers engins de hauts de gamme mais rarement cumulées. I1 comporte deux demi-bâtis, disposant chacun diun essieu à 2 roues. Ces deux bâtis sont ar tipules entre eux, à la fois en direction et en inclinaison à mi-distance entre les essieux. L'association de ces deux caractéristiques désolidarise le conducteur des secousses dûes à la charge sur le demi-buti opposé et surtout conserve l'adhérence constante des roues motrices.Le pouvoir directionnel des 2 roues directrices est assuré par la constance de leur charge, la bonne application de leur bande de roulement au sol et l'inscription de leur passage sur un rayon sans aucun ripage de l'une d'entre-elles,
Ces caractéristiques réunies engendrent un très bon rendement dynamique du tracteur dans les terrains degradés. Son agi lité remplace avantageusement les composants statiques tels que les masses dites d'adhérence sur-les tracteurs plus sommaires.The tractor according to the invention overcomes these drawbacks by combining two solutions known on various high-end machines but rarely combined. It has two half-frames, each having a 2-wheel axle. These two frames are ar tipules between them, both in direction and in inclination halfway between the axles. The combination of these two characteristics dissociates the driver from the jolts due to the load on the opposite half-stop and above all retains the constant grip of the drive wheels. The directional power of the 2 steering wheels is ensured by the constancy of their load, the correct application of their tread to the ground and the recording of their passage on a spoke without any shifting of one of them,
These characteristics combined generate a very good dynamic performance of the tractor in degraded terrain. Its agility advantageously replaces static components such as the so-called grip masses on more basic tractors.
Enfin les roues suiveuses passant dans les mêmes traces que les premières, le mini-tracteur s'inscrit dans les passages les plus étroits et les virages serrés.Finally, the following wheels passing in the same tracks as the first, the mini-tractor fits in the narrowest passages and tight turns.
La figure 1 représente schématiquement le tracteur en élévation. La benne sur un des deux demi-bAtis est présentée à titre indicatif. D'autres outils s'y montent. Figure 1 shows schematically the tractor in elevation. The bucket on one of the two half-bAtis is presented for information only. Other tools are mounted there.
La figure 2 montre sur une vue de devant du tracteur en terrain inégal, l'articulation en pivot des deux demi-chassis. Figure 2 shows in a front view of the tractor in uneven terrain, the pivot joint of the two half-chassis.
La figure 3 montre par une vue de dessus de l'articulation directionnelle à proximité du pivot central, la circulation des roues avant et arrière sur un même rayon. Figure 3 shows a top view of the directional articulation near the central pivot, the movement of the front and rear wheels on the same spoke.
Ainsi les roues sont toujours tangeantes au cercle décrit par le passage de leur bande de roulement
Le mini-tracteur articulé rend ainsi en agriculture ou sur les chantiers divers des services autres que ceux dus à sa seule petite dimension. Thus the wheels are always tangent to the circle described by the passage of their tread
The articulated mini-tractor thus renders in agriculture or on various sites services other than those due to its small size alone.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8403729A FR2560847A1 (en) | 1984-03-06 | 1984-03-06 | Articulated mini-tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8403729A FR2560847A1 (en) | 1984-03-06 | 1984-03-06 | Articulated mini-tractor |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2560847A1 true FR2560847A1 (en) | 1985-09-13 |
Family
ID=9301910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8403729A Pending FR2560847A1 (en) | 1984-03-06 | 1984-03-06 | Articulated mini-tractor |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2560847A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014075142A1 (en) * | 2012-11-16 | 2014-05-22 | Peter Boulton | Articulated motor vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB723103A (en) * | 1952-06-03 | 1955-02-02 | Hargreaves & Company Ltd W | Improvements in or relating to articulated tractor-trailer combinations |
FR1199608A (en) * | 1958-03-14 | 1959-12-15 | Improvements to load handling devices with interchangeable load supports | |
US3159229A (en) * | 1961-04-13 | 1964-12-01 | Thwaites Engr Co Ltd | Articulated chassis for a vehicle |
-
1984
- 1984-03-06 FR FR8403729A patent/FR2560847A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB723103A (en) * | 1952-06-03 | 1955-02-02 | Hargreaves & Company Ltd W | Improvements in or relating to articulated tractor-trailer combinations |
FR1199608A (en) * | 1958-03-14 | 1959-12-15 | Improvements to load handling devices with interchangeable load supports | |
US3159229A (en) * | 1961-04-13 | 1964-12-01 | Thwaites Engr Co Ltd | Articulated chassis for a vehicle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014075142A1 (en) * | 2012-11-16 | 2014-05-22 | Peter Boulton | Articulated motor vehicle |
EP2920043A4 (en) * | 2012-11-16 | 2016-07-06 | Peter Boulton | Articulated motor vehicle |
US9415715B2 (en) | 2012-11-16 | 2016-08-16 | Peter Boulton | Articulated motor vehicle |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9033430B2 (en) | Track assembly for an all-terrain vehicle (ATV) or other tracked vehicle | |
US20030159860A1 (en) | Track assembly for an all-terrain vehicle | |
KR19980018277A (en) | Working vehicle with semi-crawler | |
US9981703B2 (en) | Track system | |
FR2560847A1 (en) | Articulated mini-tractor | |
US20220089232A1 (en) | Support structure for connecting at least one support wheel assembly to a frame member of a track system and track system having the same | |
US20030159859A1 (en) | Track assembly for an all-terrain vehicle | |
JPH1045051A (en) | Tractor | |
CA2854554C (en) | Track assembly for an all-terrain vehicle | |
US6631607B1 (en) | Zero turn tractor with front mounted engine | |
JP3566229B2 (en) | Semi-crawler type traveling device | |
CA2825509C (en) | Track assembly for an all-terrain vehicle | |
JPH09123953A (en) | Suspension structure for crawler type vehicle | |
EP1457410B1 (en) | Crawler vehicle with twin running wheels | |
US3937288A (en) | All terrain vehicle | |
US20220388584A1 (en) | Support structure for connecting a plurality of support wheel assemblies to a frame member of a track system and track system having the same | |
US20210237813A1 (en) | Drive wheel for a track system, endless track for a track system and track system | |
US20220089231A1 (en) | Support structure for connecting at least one support wheel assembly to a frame of a track system and track system having the same | |
JPH02293281A (en) | Body structure in crawler vehicle | |
FR2702188A1 (en) | Device forming pneumatic caterpillar tracks intended for a vehicle such as an agricultural tractor, and vehicle equipped with at least one such device | |
JP2502080Y2 (en) | Crawler type vehicle | |
EP3946977A1 (en) | Tread for an agricultural vehicle | |
JPH03246174A (en) | Crowler belt type six-wheel car | |
JPH04257778A (en) | Semicrawler type passenger working machine | |
JPH11321726A (en) | Tractor |