FR2513944A1 - Wheel for agricultural tractor - incorporates radial crampons on rim which engage into ground on rotation - Google Patents

Wheel for agricultural tractor - incorporates radial crampons on rim which engage into ground on rotation Download PDF

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Publication number
FR2513944A1
FR2513944A1 FR8118889A FR8118889A FR2513944A1 FR 2513944 A1 FR2513944 A1 FR 2513944A1 FR 8118889 A FR8118889 A FR 8118889A FR 8118889 A FR8118889 A FR 8118889A FR 2513944 A1 FR2513944 A1 FR 2513944A1
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France
Prior art keywords
ground
studs
wheel
rotation
improvement
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FR8118889A
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French (fr)
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FR2513944B1 (en
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SOMAC
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SOMAC
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Publication of FR2513944B1 publication Critical patent/FR2513944B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/02—Wheels with spade lugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/02—Wheels with spade lugs
    • B60B15/023—Wheels with spade lugs being of the broad form type
    • B60B15/025—Wheels with spade lugs being of the broad form type with non-cylindrical shape

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The wheel for a tractor comprises a hub (1) attached to a drive-shaft of the vehicle which is connected to an outer rim (3) by spokes (2). The rim carries crampons (5), each incorporating a radial projection (6) at one end which engages into the ground as the wheel rotates. The crampons are tetrahedral in shape, or alternatively are in the form of cones with the pointed ends extending radially for engagement with the soil.

Description

Perfectionnement aux roues de tracteurs et de vehicules agricoles.Improvement to the wheels of tractors and agricultural vehicles.

La présente invention a pour objet un perfectionnement aux roues de tracteurs et de véhicules agricoles. Ces roues sont destinees à permettre d'effectuer tous les travaux agricoles en terrains durs ou mous, sans risque d'abîmer les cultures. The present invention relates to an improvement to the wheels of tractors and agricultural vehicles. These wheels are intended to allow all agricultural work to be carried out on hard or soft ground, without risk of damaging the crops.

On sait en effet que les roues usuelles des tracteurs ou autres machines, lorsqu'elles sont recouvertes de bandages pneumatiques ou autres, ou meme les roues-cages, permettent difficilement la réalisation de certains travaux agricoles du fait de la largeur desdits bandages qui abment le terrain ou les cultures elles-m8mes.  It is known in fact that the usual wheels of tractors or other machines, when covered with pneumatic or other tires, or even the cage wheels, make it difficult to carry out certain agricultural work because of the width of said tires which damage the field or the crops themselves.

Conformement à la présente invention, on utilise des roues comportant un moyeu monte sur l'arbre moteur du véhicule et relie & au moins une jante portant des crampons présentant une extremite pointue s'étendant radialement et s'engageant dans le sol lors de la rotation de la roue. In accordance with the present invention, wheels are used which have a hub mounted on the motor shaft of the vehicle and connects to at least one rim carrying studs having a pointed end extending radially and engaging in the ground during rotation. of the wheel.

Par rapport aux roues équipées de bandages pneumatiques ou de crampons de type connu, la roue perfectionnée suivant l'invention evite l'écrasement de la recolte céréalière tous les stades de la végétation.  Compared to wheels fitted with pneumatic tires or studs of known type, the improved wheel according to the invention avoids crushing the cereal harvest at all stages of the vegetation.

Par ailleurs, ce type de roue perfectionnee crampons en forme de pointe permet d'obtenir une bonne adhérence superieure meme a celle des bandages pneumatiques. In addition, this type of improved spike-shaped spike wheel provides good grip, even better than that of pneumatic tires.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre de plusieurs modes de réalisation et en se référant aux dessins annexés, sur lesquels
- la figure 1 est une vue en élévation latérale d'un mode de realisation d'une roue suivant l'invention;
- la figure 2 est une vue en élévation de face de la roue perfectionnée représentée à la figure 1;
- la figure 3 est une vue en perspective d'un mode de realisation d'un crampon suivant l'invention;
- la figure 4 est une vue en perspective d'un autre mode de réalisation d'un crampon.Other characteristics and advantages of the invention will be better understood on reading the following description of several embodiments and with reference to the accompanying drawings, in which
- Figure 1 is a side elevational view of an embodiment of a wheel according to the invention;
- Figure 2 is a front elevational view of the improved wheel shown in Figure 1;
- Figure 3 is a perspective view of an embodiment of a crampon according to the invention;
- Figure 4 is a perspective view of another embodiment of a crampon.

Aux figures 1 et 2, on a représente une roue suivant l'invention qui comprend un moyeu 1 destine à entre monte, d'une manière connue en soi, sur l'arbre moteur d'un tracteur ou d'une machine agricole, ledit moyeu étant relié par des rayons 2,2a constitues par des barres repliées et conformes à deux jantes 3,3a constituees par une couronne circulaire. La liaison par les rayons 2,2a 2a est renforcee par une couronne intermddiaire 4. In Figures 1 and 2, there is shown a wheel according to the invention which comprises a hub 1 intended for between mounts, in a manner known per se, on the drive shaft of a tractor or an agricultural machine, said hub being connected by spokes 2,2a constituted by folded bars and conforming to two rims 3,3a constituted by a circular crown. The connection by the spokes 2,2a 2a is reinforced by an intermediate ring 4.

Sur chacune des jantes 3,3a, sont fixes notamment par soudure ou tout autre moyen connu des crampons 5,5a repartis è la périphérie de la jante. On each of the rims 3.3a, are fixed in particular by welding or any other known means of the studs 5.5a distributed at the periphery of the rim.

Les crampons 5,5a (figures 1, 2 et 3) sont constitues de tétraèdres dont l'extrémité pointue 6 s'etend radialement afin de pénétrer dans le sol 7 lors de la rotation de la roue suivant la flèche F. The studs 5.5a (FIGS. 1, 2 and 3) are made up of tetrahedrons whose pointed end 6 extends radially so as to penetrate into the ground 7 during the rotation of the wheel according to arrow F.

Le bord d'attaque du sol des crampons 5,5a est constitue par une arête 8 du tétraèdre s'étendant obliquement à l'avant desdits crampons. Les crampons 5,5a sont fixes sur la jante 3,3a par l'une de leurs faces dans laquelle est ménagée une ouverture 9 recevant la jante. The leading edge of the ground of the studs 5.5a is constituted by an edge 8 of the tetrahedron extending obliquely to the front of said studs. The studs 5.5a are fixed on the rim 3.3a by one of their faces in which is formed an opening 9 receiving the rim.

Suivant un autre mode de réalisation represente à la figure 4, les crampons 5,5a sont constitués d'éléments en forme de pentaèdre ou de pyramide dont la pointe ou sommet 10 s'étend radialement et dont la face de base présente une ouverture 11 dans laquelle est engagée et fixée la jante 3, 3a. According to another embodiment represented in FIG. 4, the studs 5.5a consist of elements in the form of a pentahedron or pyramid whose tip or apex 10 extends radially and whose base face has an opening 11 in which is engaged and fixed the rim 3, 3a.

Dans le cas d'un pentaèdre, le bord d'attaque du sol est constitué par une arête 12 ét il presente à l'arrière une arête 12a qui est symetrique de l'arête 12 par rapport au sommet 10. In the case of a pentahedron, the leading edge of the ground is constituted by an edge 12 and it presents at the rear an edge 12a which is symmetrical with the edge 12 with respect to the vertex 10.

I1 serait également possible de realiser des crampons 5,5a ayant la forme d'un cane ou d'un demi-cône dont la pointe s'étendant radialement s'engagerait dans le sol lors de la rotation de la roue. Dans le cas d'un demi-c8ne, la surface arrondie est dirigee vers le bord d'attaque. I1 would also be possible to make studs 5.5a having the shape of a cane or a half-cone whose tip extending radially would engage in the ground during the rotation of the wheel. In the case of a half-cone, the rounded surface is directed towards the leading edge.

Bien entendu, l'invention n'est pas limitative et l'homme de l'art pourra y apporter des modifications sans sortir pour cela du domaine de l'invention.  Of course, the invention is not limiting and those skilled in the art may make modifications to it without departing from the scope of the invention.

Claims (5)

REVENDICATIONS 1. Perfectionnement aux roues de tracteurs et vehicules agricoles comportant un moyeu monte sur l'arbre moteur du véhicule et relié au moins une jante portant des crampons, caractérisé en ce que les crampons (5,5a) présentent une extremite pointue (6') s'étendant radialement et s'engageant dans le sol lors de la rotation de la roue.1. Improvement to the wheels of tractors and agricultural vehicles comprising a hub mounted on the motor shaft of the vehicle and connected to at least one rim carrying studs, characterized in that the studs (5.5a) have a pointed end (6 ') extending radially and engaging in the ground during rotation of the wheel. 2. Perfectionnement aux roues suivant la revendication 1, caractérisé en ce que les crampons (5,5a) présentent la forme de tetraèdres dont une pointe (6) s'engage dans le sol lors de la rotation de la roue et dont le bord d'attaque du sol est constitue par une arête (8) du tétraèdre.2. Improvement to the wheels according to claim 1, characterized in that the studs (5.5a) have the form of tetrahedrons, one point (6) of which engages in the ground during the rotation of the wheel and the edge of which d he ground attack is constituted by an edge (8) of the tetrahedron. 3. Perfectionnement aux roues suivant la revendication 1, caractérisé en ce que les crampons (5,5a) présentent la forme d'un pentaèdre ou pyramide dont la pointe (10) est engagée dans le sol lors de la rotation de la roue et dont le bord d'attaque du sol est constitue par une arête (12) du pentaèdre.3. Improvement to the wheels according to claim 1, characterized in that the studs (5.5a) have the shape of a pentahedron or pyramid whose tip (10) is engaged in the ground during the rotation of the wheel and whose the leading edge of the ground is constituted by an edge (12) of the pentahedron. 4. Perfectionnement aux roues suivant la revendication 1, caractérisé en ce que les crampons (5,5a) présentent la forme d'un cOne dont l'extrémité pointue s'étend radialement pour son engagement dans le sol.4. Improvement to the wheels according to claim 1, characterized in that the studs (5.5a) have the shape of a cone whose pointed end extends radially for its engagement in the ground. 5. Perfectionnement aux roues suivant la revendication 1, caractérisé en ce que les crampons (5;5a) présentent la forme d'un demi-ctne dont le bord d'attaque présente une surface arrondie. 5. Improvement to the wheels according to claim 1, characterized in that the studs (5; 5a) have the shape of a half-ctne whose leading edge has a rounded surface.
FR8118889A 1981-10-07 1981-10-07 IMPROVEMENT ON WHEELS OF TRACTORS AND AGRICULTURAL VEHICLES Expired FR2513944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8118889A FR2513944B1 (en) 1981-10-07 1981-10-07 IMPROVEMENT ON WHEELS OF TRACTORS AND AGRICULTURAL VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8118889A FR2513944B1 (en) 1981-10-07 1981-10-07 IMPROVEMENT ON WHEELS OF TRACTORS AND AGRICULTURAL VEHICLES

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FR2513944A1 true FR2513944A1 (en) 1983-04-08
FR2513944B1 FR2513944B1 (en) 1986-11-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU178213U1 (en) * 2017-06-14 2018-03-27 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный аграрный университет" Traction Wheel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1368629A (en) * 1918-07-09 1921-02-15 Herman H Helland Detachable mud hock or spike for tractor-wheels
FR709367A (en) * 1931-01-14 1931-08-06 Tractor wheel
US1850024A (en) * 1929-06-11 1932-03-15 Mcgregor Alec Munro Traction wheel lug
US1930615A (en) * 1932-08-16 1933-10-17 Neal C Harris Self cleaning lug
US1964889A (en) * 1932-06-18 1934-07-03 John Deere Tractor Co Tractor
FR818755A (en) * 1936-12-24 1937-10-04 Cimat Wallut Traction wheel with interchangeable claws
FR1363443A (en) * 1963-05-04 1964-06-12 Anti-slip devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1368629A (en) * 1918-07-09 1921-02-15 Herman H Helland Detachable mud hock or spike for tractor-wheels
US1850024A (en) * 1929-06-11 1932-03-15 Mcgregor Alec Munro Traction wheel lug
FR709367A (en) * 1931-01-14 1931-08-06 Tractor wheel
US1964889A (en) * 1932-06-18 1934-07-03 John Deere Tractor Co Tractor
US1930615A (en) * 1932-08-16 1933-10-17 Neal C Harris Self cleaning lug
FR818755A (en) * 1936-12-24 1937-10-04 Cimat Wallut Traction wheel with interchangeable claws
FR1363443A (en) * 1963-05-04 1964-06-12 Anti-slip devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU178213U1 (en) * 2017-06-14 2018-03-27 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный аграрный университет" Traction Wheel

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Publication number Publication date
FR2513944B1 (en) 1986-11-21

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