초록 ▼

An axle assembly (10) is disclosed including a carrier (24) having side edges extending intermediate the frame rails (14) of a truck 12 and supports (28) secured to the frame rails (14). The carrier (24) is moved relative to the frame rails (14) by a screw (32) rotated about an axis by a hydraulic m

An axle assembly (10) is disclosed including a carrier (24) having side edges extending intermediate the frame rails (14) of a truck 12 and supports (28) secured to the frame rails (14). The carrier (24) is moved relative to the frame rails (14) by a screw (32) rotated about an axis by a hydraulic motor (36) to move a collar (40) threaded thereon and secured to the carrier (24). The carrier (24) is selectively locked in position relative to the frame rails (14) by simultaneously sliding first and second pins (44) slideably mounted to the carrier (24) into seats (58) fixed to the frame rails (14). The first ends of a pair of arms (66) are secured to an axle (60) having steerable wheels (62) while the opposite ends are pivotally mounted to the carrier (24). The arms (66) are pivoted relative to the carrier (24) by an actuator (70) to move the wheels (62) between ground-engaging and elevated positions. First and second arcuate brackets (84) are secured to the opposite ends of a rotatable shaft (80) and carry pedestals (86). A hydraulic cylinder (88) rotates the shaft (80) to place the pedestals (86) in a horizontal, transport position and a vertical, lock-out position with the lower ends of the pedestals (86) abutting with the axle (60) and their upper ends vertically in line with and for abutment with stop pads (94) secured to the supports (28).

대표청구항 ▼

[ I claim:] [1.] Axle assembly for a vehicle adapted to travel over a surface and having longitudinally extending frame rails having a longitudinal extent, comprising, in combination: a carrier; means for movably mounting the carrier to the frame rails of the vehicle for movement in a longitudinal d

[ I claim:] [1.] Axle assembly for a vehicle adapted to travel over a surface and having longitudinally extending frame rails having a longitudinal extent, comprising, in combination: a carrier; means for movably mounting the carrier to the frame rails of the vehicle for movement in a longitudinal direction between a retracted position and an extended position; means for moving the carrier in the movably mounting means between the retracted and extended positions; an axle including at least a pair of wheels; at least a first arm having a first end and a second end, with the axle secured to the first end of the arm and the second end of the arm being pivotally mounted to the carrier about a lateral axis; and means for pivoting the arm relative to the carrier for adjustably moving the axle relative to the carrier for vertical movement of the wheels between a surface engaging position and an elevated position spaced above the surface, with the pivoting means having a first end pivotally mounted to the carrier and a second end pivotally mounted to the arm, with the axle assembly being positioned generally within the longitudinal extent of the frame rails when the carrier is in the retracted position, with the carrier movable between the retracted and extended positions with the wheels in either the surface engaging position or the elevated position.