Side-shift limiter
AssigneeCascade Corporation
InventorsAndrea Dal Dosso, Pat S. McKernan, D. Clark Jordan, Gregory A. Nagle, David W. Petronek
Life of this patent
Estimating the term…
Abstract
A side shift limiting attachment for a material handing vehicle alerts the vehicles operator and restricts side shifting, lifting, tilting and/or rotation of the attachment when the side shift displacement is approaching or has reached a limit for a lift height.
Claims36
A system for limiting a lateral position of a load face for a material handling vehicle, the system comprising:
- (a) a lateral position sensor arranged to output a lateral position datum quantifying a distance between a material handling vehicle lateral datum and a load face lateral datum;
- (b) a height sensor arranged to output a height datum quantifying a height of a vertical load face datum relative to a surface supporting said material handling vehicle;
- and
- (c) a controller arranged to receive said lateral position datum and said height datum and to output a side shift control signal when said lateral position datum corresponds to a side shift limit for said height datum.
A load handling attachment for a material handling vehicle, said load handling attachment comprising;
- (a) a load face defined by a load engaging member and movable laterally and vertically relative to said material handling vehicle;
- (b) a lateral position sensor arranged to output a lateral position datum quantifying a distance to a lateral load face datum;
- (c) a height sensor arranged to output a height datum quantifying a distance between a load face height datum and a surface supporting said material handing vehicle;
- and
- (d) a controller arranged to receive said lateral position datum and said height datum and operable according to a stored instruction to output a side shift control signal when said lateral position datum exceeds a side shift limit for said height datum.
A method for limiting a lateral position of a load face for a material handling vehicle, the method comprising the steps of:
- (a) quantifying a distance between a material handling vehicle lateral datum and a load face lateral datum;
- (b) quantifying a height of a vertical load face datum relative to a surface supporting said material handling vehicle;
- and
- (c) limiting a speed of lateral displacement of said load face datum when said distance between said material handling vehicle lateral datum and said load face lateral datum corresponds to a limit at said height datum.
Dependencies are inferred from the claim text.