Steering device for towed implements
First Claim
1. A steering device for facilitating the steering of an implement towed by a work vehicle, said implement comprising a main frame having front and rear ends and at least one steerable surface engaging wheel attached to said frame, comprising:
- (a) a sensor means mounted on said frame for sensing a misalignment of said towed implement and said work vehicle and producing a signal corresponding to said misalignment; and
(b) a steering means associated with said steerable wheel for receiving said signal and for effecting movement of said steerable wheel in response to said signal until said towed implement and said work vehicle are realigned.
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Accused Products
Abstract
The present invention relates to a steering device for facilitating the steering of an implement towed by a work vehicle. The towed implement, for example, a farm implement such as a seeding device, comprises a main frame having front and rear ends and at least one steerable surface engaging wheel attached to the frame. The steering device comprising a sensor means mounted on the main frame of the towed implement for sensing a misalignment of the towed implement and the work vehicle and producing a signal corresponding to the misalignment. The steering device further comprises a steering means associated with the steerable wheel for receiving the signal produced by the sensor means and for effecting movement of the steerable wheel in response to the signal until the towed implement and the work vehicle are once again realigned.
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Citations
49 Claims
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1. A steering device for facilitating the steering of an implement towed by a work vehicle, said implement comprising a main frame having front and rear ends and at least one steerable surface engaging wheel attached to said frame, comprising:
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(a) a sensor means mounted on said frame for sensing a misalignment of said towed implement and said work vehicle and producing a signal corresponding to said misalignment; and
(b) a steering means associated with said steerable wheel for receiving said signal and for effecting movement of said steerable wheel in response to said signal until said towed implement and said work vehicle are realigned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 49)
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21. A steering device for facilitating the steering of an implement towed by a work vehicle, said implement comprising a main frame having front and rear ends and at least one steerable surface engaging wheel attached to said frame, comprising:
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(a) a surface engaging sensor member mounted perpendicular to said frame on said frame having side to side movement about a vertical axis, said sensor member being in neutral position when perpendicular to the frame;
(b) a sensing means responsively associated with said sensor member for sensing the horizontal position of said sensor member and for creating a signal corresponding to said horizontal position of said sensor member; and
(c) a steering actuating means associated with said steerable wheel for receiving said signal and for effecting movement of said steerable wheel in response to said signal until the sensor member is back to the neutral position. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A steering device for facilitating the steering of an implement towed by a work vehicle, said implement comprising a frame having front and rear ends and at least one steerable surface engaging wheel attached to said frame, comprising:
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(a) sensor means for determining the location of the centre of said towed implement and the location of the centre of said work vehicle and for producing a first signal when the centre of said towed implement and the centre of said work vehicle are misaligned;
(b) a sensing means for receiving said first signal and creating a second signal corresponding to the position of said towed implement in relation to said work vehicle; and
(c) a steering actuating means associated with said steerable wheel for receiving said second signal and for effecting movement of said steerable wheel in response to said second signal until the towed implement and the work vehicle are in alignment. - View Dependent Claims (46, 47, 48)
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Specification