Tuning of a kinematic relationship between members
AssigneeEddy Current Limited Partnership
InventorsAndrew Karl Diehl, Christopher James Allington
Life of this patent
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Abstract
Described herein is a device comprising members in a kinematic relationship. The kinematic relationship is at least partially governed by at least one magnetically induced force that introduces a force threshold that, in effect, provides a threshold to part movement and confers a degree of hysteresis, preventing movement until a sufficiently large energizing force is applied. The effect may be further altered by use of an additional magnetically induced force interaction with at least one further member to urge or slow movement once started and/or to prevent movement once a new position is reached.
Claims22
1-27. (canceled)
A brake device comprising:
- at least one first member being a pawl or arm mechanically linked to a second member, the second member being a rotating rotor, and at least one third member, the at least one third member interacting with the at least one first member based on relative movement between the at least one first and at least one third members inducing an eddy current brake effect between the at least one first and third members;
- at least one magnetically attracted relationship between the at least one first and second members that introduces a force threshold that confers a degree of hysteresis preventing movement between the first and second members up to a force threshold and, when this force threshold is exceeded by application of an energizing force of sufficient magnitude to the second member, the magnetically attracted relationship between the first and second members is overcome and the at least one first member then moves relative to the second member;
- and
- as the at least one first member moves relative to the second member, the at least one first member interacts with the third member to induce an eddy current brake effect between the at least one first and third members in turn braking relative movement between the third member and second member via the at least one first member.
A brake device comprising:
- at least one first member being a pawl or arm mechanically linked to a second member, the second member being a linear translating carriage, and at least one third member, the at least one third member interacting with the at least one first member based on relative movement between the at least one first and at least one third members inducing an eddy current brake effect between the first and third members;
- at least one magnetically attracted relationship between the at least one first and second members that introduces a force threshold that confers a degree of hysteresis preventing movement between the at least one first and second members up to a force threshold and, when this force threshold is exceeded by application of an energizing force of sufficient magnitude to the second member, the magnetically attracted relationship between the first and second members is overcome and the at least one first member then moves relative to the second member;
- and
- as the at least one first member moves relative to the second member, the at least one first member interacts with the third member to induce an eddy current brake effect between the first and third members in turn braking relative movement between the third member and second member via the at least one first member.
Dependencies are inferred from the claim text.