Vehicle with eccentrically mounted bumper

Claim 2

A vehicle comprising a wheeled base, a movable rear bumper at the rear end of the base, a single bumper means at the front of said base for alternatively causing accumulation of the base and for pushing of other vehicles, said bumper means including a curved surface extending transversely of the front end of the base and mounted for rotation about a horizontally eccentric axis at the 3 o''clock position.

Claim 3

A vehicle in accordance with Claim 1 including an upright tow pin at the front end of the base, said single bumper means being coupled to said tow pin for raising the tow pin to effect accumulation of the base.

Claim 4

A vehicle in accordance with Claim 1 including a bellcrank supported by said base, one leg of the bellcrank being coupled to said curved surface, the other leg of the bellcrank being coupled to said rear bumper.

Claim 5

A vehicle in accordance with Claim 1 wherein said rear bumper is biased to an upright position, means providing a blocking surface for preventing rotation of the rear bumper against said bias, and said single bumper means being coupled to said blocking means for selectively removing the blocking means.

Claim 6

A vehicle comprising a wheeled base, a tow pin disposed in an upright position centrally adjacent the front of the base, a movable rear bumper having a pushing position and an accumulation position, means biasing said bumper to one of said positions, blocking means for preventing said rear bumper from moving from said one position to its other position, and movably supported single bumper means at the front of said base for alternatively causing accumulation of the base and pushing other vehicles in front of the base, said single bumper means being coupled to said tow pin to move the tow pin when the bumper means moves, said single bumper means being coupled to said rear bumper to remove the blocking means when the single bumper means moves, said single bumper means including a cylinder extending transversely at the front of the base, said cylinder being supported for rotation about a horizontal transverse axis at the 3 o''clock position within its contour and parallel to its longitudinal axis.

Claim 7

A vehicle comprising a wheeled base, a tow pin disposed in an upright position centrally adjacent the front of the base, a movable rear bumper having a pushing position and an accumulation position, means biasing said bumper to one of said positions, blocking means for preventing said rear bumper from moving from said one position to its other position, and movably supported single bumper means at the front of said base for alternatively causing accumulation of the base and pushing other vehicles in front of the base, said single bumper means being coupled to said tow pin to move the tow pin when the bumper means moves, said single bumper means being coupled to said rear bumper to remove the blocking means when the single bumper means moves, said single bumper means including a cylinder extending transversely at the front of the base, said cylinder being supported for rotation about a horizontal transverse axis at the 3 o''clock position within its contour and parallel to its longitudinal axis.

Claim 8

A vehicle in accordance with Claim 5 wherein said rear bumper is biased to an upright position corresponDing to its pushing position, said rear bumper being pivotably mounted for movement from its pushing position to its accumulation position, said rear bumper having its upper edge positioned so as to move toward the front of the vehicle when the rear bumper moves from its pushing position to its accumulation position.

Claim 9

A vehicle comprising a wheeled base, an upright tow pin at the front end of the base, said tow pin being projectable to a position where its lower end is lower than the wheels on the base so that the lower end of the tow pin may enter a slot, a bumper means at the front of said base for raising the tow pin to effect accumulation of the base, said bumper means including a cylinder extending transversely at the front end of the base and mounted for rotation about a horizontal axis parallel to the longitudinal axis of said cylinder, the axis of rotation of said cylinder being at approximately the 3 o''clock position, and said bumper means including linkage extending from said cylinder to said tow pin to raise the tow pin upon rotation of said cylinder about said axis of rotation.

Claim 10

A vehicle comprising a wheeled base, an upright tow pin at the front end of the base, said tow pin being projectable to a position where its lower end is lower than the wheels on the base so that the lower end of the tow pin may enter a slot, a bumper means at the front of said base for raising the tow pin to effect accumulation of the base, said bumper means including a cylinder extending transversely at the front end of the base and mounted for rotation about a horizontal axis parallel to the longitudinal axis of said cylinder, the axis of rotation of said cylinder being at approximately the 3 o''clock position, and said bumper means including linkage extending from said cylinder to said tow pin to raise the tow pin upon rotation of said cylinder about said axis of rotation.

Claim 11

A vehicle comprising a wheeled base, a bumper supported at a front end of said base, said bumper including a curved surface mounted for rotation about a horizontally disposed eccentric axis, said eccentric axis being at approximately the 3 o''clock position, the axis of curvature of said surface and said eccentric axis lying in a horizontal plane.

Claim 12

A vehicle comprising a wheeled base, a bumper supported at a front end of said base, said bumper including a curved surface mounted for rotation about a horizontally disposed eccentric axis, said eccentric axis being at approximately the 3 o''clock position, the axis of curvature of said surface and said eccentric axis lying in a horizontal plane.