Improved chassis for a heavy vehicle
AssigneeIdv Defence Vehicles Italia S.P.A.
InventorsNicola Cristalli, Marco Fornasari, Davide Braghieri
Life of this patent
Estimating the term…
Abstract
A chassis for a heavy vehicle comprising a first and a second side member extending along a longitudinal axis of the vehicle between a first end portion and a second end portion, the chassis comprising an extension system fixed to said first end portion and extending along the longitudinal axis beyond the first end portion, the extension system being configured to support different suspension configurations to support a cab of the vehicle.
Claims22
—A chassis (1) for a heavy vehicle comprising a first and a second side member (2a, 2b) extending along a longitudinal axis (A) of said vehicle between a first end portion (2′) and a second end portion (2″), said chassis (1) comprising an extension system (5) fixed to said first end portion (2′) and extending along said longitudinal axis (A) beyond said first end portion (2′), said extension system (5) being configured to support different suspension configurations (20, 30) to support a cab of said vehicle,
- wherein said extension system (5) comprises a pair of lateral portions (6) each fixed to a respective side member (2) externally with respect to the space laterally comprised thereby, a free portion (6′) of each of said pair of lateral portions (6) extending longitudinally beyond the respective side member (2),
- wherein each side member (2) comprises a vertical wall (3) and a pair of walls (4′, 4″) extending cantilevered from upper and lower edges of said vertical wall (3) in the direction of the opposite side member (2), said lateral portions (6) each comprising a vertical wall (7) facing said vertical wall (3) of the respective side member (2) and a pair of walls (8′, 8″) extending cantilevered from upper and lower edges of said vertical wall (79) in the opposite direction of the respective side member (2).
—The chassis according to claim 1, wherein said extension system (5) is further configured to support a steering system (11) of said vehicle.
—The chassis according to claim 1, wherein said extension system (5) comprises an end portion (9) suitable for connecting said free portions (6′) of said side portions (6).
—The chassis according to claim 3, wherein said end portion (9) comprises a pair of lateral portions (9″) suitable for allowing fixing thereof with said free portions (6″) and a central portion (9′) comprised between said side portions (9″) formed as a box.
—The chassis according to claim 1, wherein said vertical wall (7) of said side portions (6) extends vertically above said vertical wall (3) of the respective side member (2).
—The chassis according to claim 1, wherein said chassis (1) comprises a hub (12) fixed to said vertical wall (7) and extending on the opposite side of said side member (2), said hub (12) being configured to carry a mechanism (13) of said steering system.
—The chassis according to claim 6, wherein said hub (12) extends cantilevered from said vertical wall (7) beyond said pair of walls (8′, 8″).
—The chassis according to claim 1 comprising a first cross member (40) placed in correspondence with said first end portion (2′), said first cross member (40) comprising a pair of lateral fixing elements (40″) and a central portion (40′), said lateral fixing elements (40″) being shaped so as to position said central portion (40′) vertically below said side members (2).
—The chassis according to claim 1 comprising a second cross member (60) placed in correspondence with said second end portion (2′'), said second cross member (60) comprising a pair of lateral fixing elements (60″′) and a central portion (60′), said lateral fixing elements (60″′) being shaped so as to position said central portion (60′) vertically below said side members (2).
—The chassis according to claim 9, wherein said central portion (60′) has a circular section, said second cross member (60) comprising a pair of connecting portions (60″) having at least partially circular cross-section and configured for connecting said central portion (60′) to said lateral fixing elements (60″′).
—The chassis according to claim 1 comprising a third cross member element (50) placed between said first and said second end portions (2′, 2″), said third cross member (50) comprising a pair of lateral fixing flanges (51) and a central portion (52), said lateral fixing flanges (51) being shaped so as to position said central portion (52) vertically below said side members (2).
—The chassis according to claim 11, wherein said central portion (62) has the shape of a plate parallel to the ground.
—The chassis according to claim 11, wherein said lateral fixing flanges (51) define a seat suitable for engaging a rotatable element.
—A vehicle comprising a chassis (1) according to claim 1, a cab, a suspension system (20, 30) for supporting said cab on said chassis (1) and a steering system (11) carried by said chassis (1).
—The vehicle according to claim 14, wherein said suspension system (20, 30) comprises a rear part provided with a bridge element (24) fixed to said side members (2) by means of respective brackets (23, 36), and a support element (25) carried in a movable way by said bridge element (24), said support element (25) being connected to said cab.
The vehicle according to claim 15, wherein said brackets (23, 36) comprise a fixing portion (23′, 36′) fixed to said side members (2) and extending above them and an end portion (23″, 36″) connected to said bridge element (24).
The vehicle according to claim 15, further comprising a third cross member element (50) placed between said first and said second end portions (2′, 2″), said third cross member (50) comprising a pair of lateral fixing flanges (51) and a central portion (52), said lateral fixing flanges (51) being shaped so as to position said central portion (52) vertically below said side members (2), wherein said rear portion is placed in correspondence with said third cross member (50).
—The vehicle according to claim 14, wherein said suspension system (20) comprises a front part carried by said extension system (5), said front part (20) comprising a support bracket (22) fixed to said extension system (5), said support bracket (21) carrying a hinged element (21) cooperating with said cab.
—The vehicle according to claim 14, wherein said suspension system (20) comprises a front part carried by said extension system (5), said front part (30) comprising a support bracket (31) fixed to said extension system (5), said support bracket (31) cooperating with said cab and carried in a movable way by a flange (33) fixed to said extension system (5).
—The vehicle according to claim 19, wherein said suspension system (20) comprises a hinged element (32) hinged to said support bracket (31) and carried in a movable way by damping means (34) operatively interposed between said hinge element (32) and said flange (33).
—The vehicle according to claim 20, wherein said suspension system (20) comprises a torsion bar (35) connecting the support brackets (31) of each side member (2) to each other.
The vehicle according to claim 21 wherein said suspension system (30) comprises an arm (38) configured to connect the ends of said torsion bar (35) to said flanges (33).
Dependencies are inferred from the claim text.