Material handling vehicle
First Claim
1. A vehicle comprising a first frame, a second frame attached to said first frame for pivotal movement about a first horizontal axis perpendicular to the longitudinal axis of the vehicle, a third frame attached to said first frame for pivotal movement about a second horizontal axis parallel to the longitudinal axis of the vehicle, first and second motor wheel units mounted on said third frame, each of said motor wheel units including a drive wheel having its rotational axis substantially vertically aligned with said first horizontal axis, and a load platform suspended from said first and second frames for swinging movement in a plurality of planes.
6 Assignments
0 Petitions
Accused Products
Abstract
A wire-guided vehicle (10) in which a load is carried by a load platform (18) which is suspended from a base frame (12) by link members (42). The load is carried on a load carriage (20) which is moved vertically relative to the load platform by a plurality of screw jacks (92) acting between the load platform and the load carriage. The base frame is articulated about a transverse axis (27), and a power unit (14) which includes drive-steer units (16) is mounted on the base frame for pivotal movement about a longitudinal axis (34). A battery carrier (116) of the vehicle includes a latch assembly (152) which retains the power supply batteries within the vehicle while permitting easy removal when the latch assembly is engaged by a battery cart (170).
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Citations
13 Claims
- 1. A vehicle comprising a first frame, a second frame attached to said first frame for pivotal movement about a first horizontal axis perpendicular to the longitudinal axis of the vehicle, a third frame attached to said first frame for pivotal movement about a second horizontal axis parallel to the longitudinal axis of the vehicle, first and second motor wheel units mounted on said third frame, each of said motor wheel units including a drive wheel having its rotational axis substantially vertically aligned with said first horizontal axis, and a load platform suspended from said first and second frames for swinging movement in a plurality of planes.
Specification