Abrégé

A wheel rim, in particular for a wheel of an agricultural vehicle is disclosed, in which an annular body comprises a central annular portion extending around an axis, two peripheral annular portions for coupling with the beads of a tyre and two intermediate annular portions that connect the two peripheral annular portions to the central annular portion, each intermediate annular portion comprises a tilted wall with an external frustoconical surface that forms an angle α with a plane that is perpendicular to the aforesaid axis.

Classes IPC  ?

• B60B 21/10 - Jantes caractérisées par la forme du logement du pneumatique du rebord de jante, p. ex. ondulées
• B60B 21/02 - Jantes caractérisées par leur section transversale

Produits et services

Vehicles; Apparatus for locomotion by land, air or water; Tractors; Tractor trailers.

Produits et services

Vehicles; Apparatus for locomotion by land, air or water; Tractors; Tractor trailers.

Abrégé

A fastening system (1) for fastening an auxiliary wheel (2) to a main wheel (3) of an agricultural vehicle comprises an annular spacer (18) interposed between a rim (4) of the main wheel (3) and a further rim (17) of the auxiliary wheel (2), and a plurality of tensioning devices (33) acting between the auxiliary wheel (2) and the main wheel (3), for holding the auxiliary wheel (2) pressed against the main wheel (3). In order to reduce the stress to which a disc (5) of the main wheel (3) is subjected, a fastening element (24), or auxiliary disc, is provided comprising a first fastening portion (25), which can be detachably fixed to a hub (6) of the vehicle and a second fastening portion (28), which is axially spaced from the first fastening portion (25), wherein each of the tensioning devices (33) comprises a first end element (34) that can be detachably fastened to the second fastening portion (28) and a second end element (36) that can be detachably fastened to the annular spacer (18).

Classes IPC  ?

• B60B 11/02 - Ensembles de roues distinctes montées pour rotation indépendante ou couplée
• B60B 11/06 - Roues avec plusieurs jantes montées sur un seul corps de roue

Abrégé

A variable track wheel (1) comprises a rim (2) suitable for receiving a tyre, and a disc (3) through which said wheel (1) is mountable on a hub (37), said disc (3) being removably secured by fastenings (6) to a connecting member (4) provided in said rim (2), said connecting member (4) projecting towards a rotation axis (X) of said wheel (1), said wheel further comprising a plurality of spacers (15) interposed between an annular perimeter zone (36) of said disc (3) and said connecting member (4) of said rim (2), said disc (3) and said rim (2) being mountable in a plurality of reciprocal axial positions and in a plurality of reciprocal orientations to obtain a variation in the track of said wheel (1), said wheel (1) further comprising at least one centring device (8; 9) for mutual positioning of said disc (3) and of said rim (2), said centring device (8; 9) comprising a hole (10; 10a; 10b) and a pin (11), said hole (10; 10a; 10b) or said pin (11) being provided in said connecting member (4) or in said disc (3), said centring device (8; 9) further comprising a coupling element (21) so conformed as to cooperate with said hole (10; 10a; 10b) and with said pin (11) for reciprocally coupling said pin (11) and said hole (10; 10a; 10b).

Classes IPC  ?

• B60B 23/00 - Fixation de la jante au corps de la roue
• B60B 23/12 - Fixation de la jante au corps de la roue par dispositifs permettant de faire varier la position axiale de la jante par rapport au corps de la roue, pour réglage à la largeur de la voie
• B60B 3/00 - Roues pleines, c.-à-d. roues avec corps en forme de disque supportant la charge

Abrégé

A variable track wheel (1) comprises a rim (2) suitable for receiving a tyre, and a disc (3) through which said wheel (1) is mountable on a hub (37), said disc (3) being removably secured by fastenings (6) to a connecting member (4) provided in said rim (2), said connecting member (4) projecting towards a rotation axis (X) of said wheel (1), said wheel further comprising a plurality of spacers (15) interposed between an annular perimeter zone (36) of said disc (3) and said connecting member (4) of said rim (2), said disc (3) and said rim (2) being mountable in a plurality of reciprocal axial positions and in a plurality of reciprocal orientations to obtain a variation in the track of said wheel (1), said wheel (1) further comprising at least one centring device (8; 9) for mutual positioning of said disc (3) and of said rim (2), said centring device (8; 9) comprising a hole (10; 10a; 10b) and a pin (11), said hole (10; 10a; 10b) or said pin (11) being provided in said connecting member (4) or in said disc (3), said centring device (8; 9) further comprising a coupling element (21) so conformed as to cooperate with said hole (10; 10a; 10b) and with said pin (11) for reciprocally coupling said pin (11) and said hole (10; 10a; 10b).

Classes IPC  ?

• B60B 3/00 - Roues pleines, c.-à-d. roues avec corps en forme de disque supportant la charge
• B60B 23/00 - Fixation de la jante au corps de la roue
• B60B 23/12 - Fixation de la jante au corps de la roue par dispositifs permettant de faire varier la position axiale de la jante par rapport au corps de la roue, pour réglage à la largeur de la voie