Vehicle steering mechanisms
First Claim
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1. A steering mechanism for a long vehicle having leading and trailing ends and comprising:
- a first steering device located towards the leading end,a steering member located towards the trailing end and so controlled by a second steering device located towards the trailing end that the steering member will act in a steering mode in which it positively steers that end of the vehicle or in a following mode in which it follows an existing direction of motion which is in a straight line or follows an arc of constant radius;
a linkage between the first and second steering devices;
actuating means within that linkage, and responsive both to a first angle which the first device makes with the fore-and-aft centreline of the vehicle and a second angle which the second device makes the same line;
said actuating means operating to cause the second device to lock the steering member in its following mode whenever the second angle is less than a predetermined function of the first angle, but operating under other conditions to cause the second device to make the steering member operate in its steering mode in a manner which tends to make the second device progress to a condition wherein equality between the second angle and that function of the first angle is achieved.
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Abstract
A steering mechanism for a long vehicle having a first steering device located towards the leading end, a steering member located towards the trailing end and so controlled by a second steering device located toward the trailing end that the steering member will act in a steering mode in which it positively steers the trailing end of the vehicle, or in a following mode in which it follows an existing direction which is in a straight line or follows an arc of constant radius and a linkage between the first and second steering devices.
19 Citations
19 Claims
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1. A steering mechanism for a long vehicle having leading and trailing ends and comprising:
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a first steering device located towards the leading end, a steering member located towards the trailing end and so controlled by a second steering device located towards the trailing end that the steering member will act in a steering mode in which it positively steers that end of the vehicle or in a following mode in which it follows an existing direction of motion which is in a straight line or follows an arc of constant radius; a linkage between the first and second steering devices; actuating means within that linkage, and responsive both to a first angle which the first device makes with the fore-and-aft centreline of the vehicle and a second angle which the second device makes the same line; said actuating means operating to cause the second device to lock the steering member in its following mode whenever the second angle is less than a predetermined function of the first angle, but operating under other conditions to cause the second device to make the steering member operate in its steering mode in a manner which tends to make the second device progress to a condition wherein equality between the second angle and that function of the first angle is achieved. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification