Side-shift limiter
First Claim
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1. 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.
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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.
50 Citations
36 Claims
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1. A system for limiting a lateral position of a load face for a material handling vehicle, the system comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A load handling attachment for a material handling vehicle, said load handling attachment comprising;
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(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. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for limiting a lateral position of a load face for a material handling vehicle, the method comprising the steps of:
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(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. - View Dependent Claims (32, 33, 34, 35, 36)
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Specification