Self-propelled snow remover
First Claim
1. A self-propelled snow remover comprising:
- a machine body;
travel units mounted on the machine body to undergo turning movement and linear movement;
at least one steering member mounted to the machine body and operable to turn the travel units;
a snow-removing implement mounted to the machine body to undergo lifting, lowering and rolling movements relative to the machine body;
a lift drive mechanism that lifts and lowers the snow-removing implement; and
a control unit that controls the lift drive mechanism by issuing a lift drive instruction to the lift drive mechanism so as to automatically lift the snow-removing implement when a steering condition in which the steering member is turned is determined to be satisfied, and by issuing a lowering drive instruction to the lift drive mechanism so as to automatically lower the snow-removing implement when the steering condition is determined to be no longer satisfied.
1 Assignment
0 Petitions
Accused Products
Abstract
A self-propelled snow remover has a machine body, travel units mounted on the machine body to undergo turning movement and linear movement, and at least one steering member mounted to the machine body and operable to turn the travel units. A snow-removing implement is mounted to the machine body to undergo lifting, lowering and rolling movements relative to the machine body. A lift drive mechanism lifts and lowers the snow-removing implement. A control unit controls the lift drive mechanism by issuing a lift drive instruction to the lift drive mechanism so as to automatically lift the snow-removing implement when a steering condition in which the steering member is turned is determined to be satisfied, and by issuing a lowering drive instruction to the lift drive mechanism so as to automatically lower the snow-removing implement when the steering condition is determined to be no longer satisfied.
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Citations
20 Claims
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1. A self-propelled snow remover comprising:
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a machine body; travel units mounted on the machine body to undergo turning movement and linear movement; at least one steering member mounted to the machine body and operable to turn the travel units; a snow-removing implement mounted to the machine body to undergo lifting, lowering and rolling movements relative to the machine body; a lift drive mechanism that lifts and lowers the snow-removing implement; and a control unit that controls the lift drive mechanism by issuing a lift drive instruction to the lift drive mechanism so as to automatically lift the snow-removing implement when a steering condition in which the steering member is turned is determined to be satisfied, and by issuing a lowering drive instruction to the lift drive mechanism so as to automatically lower the snow-removing implement when the steering condition is determined to be no longer satisfied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A self-propelled snow remover comprising:
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a machine body; travel units mounted on the machine body to undergo turning movement during a turning operation; at least one steering member mounted to the machine body and operable to turn the travel units during a turning operation; a snow-removing implement mounted to the machine body to undergo lifting and lowering movements relative to the machine body; a lift drive mechanism that lifts and lowers the snow-removing implement; and control means for controlling the lift drive mechanism to automatically lift the snow-removing implement during a turning operation by the steering member from a first height position to a second height position, and to automatically lower the snow-removing implement to the first height position when the turning operation by the steering member is stopped. - View Dependent Claims (12, 13, 14, 15)
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16. A self-propelled snow remover comprising:
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a machine body; at least one travel unit mounted on the machine body for undergoing turning movement during a turning operation; at least one steering member mounted to the machine body for performing a turning operation to turn the travel unit; a snow-removing implement mounted to the machine body for undergoing lifting, lowering, and rolling movements relative to the machine body; a lift drive mechanism for lifting and lowering the snow-removing implement; a rolling drive mechanism for rolling the snow-removing implement; and a microcomputer that (a) executes a first control routine that controls the lift drive mechanism to automatically lift the snow-removing implement from an initial height position thereof when a steering condition in which the steering member performs a turning operation is determined to be satisfied and that controls the lift drive mechanism to automatically lower the snow-removing implement to the initial height position when the steering condition is determined to be no longer satisfied, and (b) executes a second control routine that controls the rolling drive mechanism to roll the snow-removing implement to a preselected rolling position when the steering condition is determined to be no longer satisfied. - View Dependent Claims (17, 18, 19, 20)
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Specification