Substantially linear vertical lift system
AssigneeSiemens Medical Solutions USA, Inc.
InventorsHan-su Kim, Kyung-dong Lee, Chang-hoon Baek
Life of this patent
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Abstract
A substantially vertical lift system is disclosed herein. The substantially vertical lift system is comprised of a platform, base, and a lifting mechanism. The lifting mechanism is designed to displace the platform in a substantially linear manner, and if desired, in a position parallel to the base. Multiple lifting mechanisms may be used, and displaced either in a side-by-side or stacked orientation. The configuration of the lifting mechanism is implementation dependent.
Claims37
A lift device system for use in displacing a load in a substantially linear manner, the lift device system comprising:
- a platform;
- a base;
- a lifting mechanism coupled with the platform and the base, the lifting mechanism comprising:
- a first member having first and second ends, where the first end of the first member is pivotally coupled with the platform;
- a second member, having first and second ends, where the first end of the second member is pivotally coupled with the base, at a first point, and the second end is pivotally coupled with the second end of the first member;
- and
- a connecting member having first and second ends, wherein the first end of the connecting member is pivotally coupled with the base at a second point, where the second point is above the first point, and the second end of the connecting member is pivotally coupled with first member.
A lift device system operative to displace a load in a substantially linear manner, the lift device system comprising:
- a platform;
- a base;
- a lifting mechanism coupled with the platform and the base, the lifting mechanism comprising:
- a first member having first and second ends, where the first end of the first member is pivotally coupled with the platform;
- a second member, having first and second ends, where the first end of the second member is pivotally coupled with the base;
- a third member having first and second ends, where the first end of the third member is pivotally coupled with the base;
- a shared member, having first and second ends, where the first end of the shared member is pivotally coupled with the second end of the first member and the second end of the second member, and the second end of the shared member is pivotally coupled with the second end of the third member;
- and
- a connecting member having first and second ends, wherein the first end of the connecting member is pivotally coupled with the first member and the second end of the connecting member is pivotally coupled with third member.
A lift device system for use in displacing a load in a substantially linear manner, the lift device system comprising:
- a platform;
- a base;
- a lifting mechanism coupled with the platform and the base, the lifting mechanism comprising:
- a first member, having first and second ends, where the first end of the first member is pivotally coupled with the base at a first point;
- a second member having first and second ends, where the first end of the second member is pivotally coupled with the platform at a second point;
- and
- a shared member, wherein the second ends of the first and second members are pivotally coupled with the shared member, at a first coupling point and a second coupling point, respectively.
A method for determining the length and coupling location of a first end of a connecting member of a lift device system for use in displacing a platform coupled with a base via a first, a second, and a connecting member, the method comprising:
- determining the desired trajectory of the platform and the respective lengths of the first and second members;
- determining the coupling location of a second end of the connecting member with the first member;
- plotting the trajectory of the first and second members and the coupling location of the second end of the connecting member, in a first, second, and third positions;
- determining the bisecting line between the coupling location of the first end of the first member and the connecting member when in the first and third positions;
- selecting a point on the bisecting line to denote the coupling location of the first end of the connecting member with the base;
- and
- calculating the length and coupling location of the first end of the connecting member based on the desired trajectory of the platform.
A method of operation of a lift device system for use in linearly displacing a platform pivotally coupled with base via a first, second, and connecting members, the method comprising:
- actuating the lift device system from a first position;
- rotating the connecting member in an arcuate motion with respect to the first member and the base;
- confining the trajectory of the first member and the second member to the motion of the connecting member;
- translating the trajectory of the first member to the platform;
- and
- displacing the platform of the lift device system in a linear manner from the first position to a second position.
A method for determining a linear trajectory and length of a connecting member of a lift device system for use in displacing a platform coupled with a base via a first, a second, a third, a shared, and a connecting member, the method comprising:
- determining the desired trajectory of the platform and the respective lengths of the first, second, third, and shared members;
- determining the coupling location of a second end of the connecting member with respect to the third member;
- maintaining a fixed position of the first member while rotating the shared and third members;
- plotting the trajectory of the third member with respect to the coupling location of the second end of the connecting member in a first, second, and third positions;
- determining the bisecting line between the coupling location of the second end of the connecting member with the third member in the first and third positions, such that where the bisecting line intersects the first member determines the coupling location of a first end of the connecting member with the first member;
- and
- calculating the length of the connecting member as the distance between the coupling location of the first end of the connecting member with the first member and the coupling location of the second end of the connecting member with respect to the third member.
A method of operation of a lift device system for use in linearly displacing a platform coupled with a base via a first, a second, a third, a shared, and a connecting member, the method comprising:
- actuating the platform of the lift device system from a first position;
- rotating the connecting member in an arcuate motion with respect to the first and third members;
- confining the trajectory of the first and third members to the motion of the connecting member;
- translating the trajectory of the first and third members to the second and shared members;
- translating the trajectory of the first member to the platform;
- and
- displacing the platform to a second position.
A method for determining the length and coupling location of a connecting member of a lift device system for use in displacing a platform coupled with a base via a first member, a second member, a connecting member, and a shared member, the method comprising:
- determining the desired trajectory of the platform and the respective lengths of the first and second members;
- determining the dimensions of the shared member;
- determining the coupling location of a first end of the connecting member with the second member;
- actuating the first, second, and shared members with respect to a linear axis;
- plotting the trajectory of the second member and the coupling location of the first end of the connecting member with the second member in a first, second, and third positions;
- determining the bisecting line between the coupling location of the first end of the connecting member with the second member in the first and third positions;
- determining a circle with a circumference that intersects the coupling locations of the first end of the connecting member with the second member in the first, second, and third positions, on which the center of the circle is disposed on the bisecting line;
- and
- calculating the length and coupling location of the second end of the connecting member, where the length of the connecting member is equal to the radius of the circle and the coupling location of the second end of the connecting member with the first member is at the center of the circle.
A method of operation of a lift device system for use in linearly displacing a platform coupled with a base via a first member, a second member, a connecting member, and a shared member, the method comprising:
- actuating the lift device system from a first position;
- rotating the first member in an arcuate motion with respect to the second and connecting members;
- confining the trajectory of the shared and connecting members to the motion of the first member;
- translating the motion of the shared and connecting members to the second member;
- and
- displacing the platform to a second position in a substantially linear manner.
A lift device system for use in linearly displacing a platform operative to carry a load, the lift device system comprising:
- a lift mechanism coupled with the platform and a base, the lift mechanism operative to displace the platform vertically without horizontal displacement;
- wherein the lift mechanism is further operative to be disposed between the base and the platform during operation;
- and
- is further operative to displace the platform independent of the length of the platform and the base.
Dependencies are inferred from the claim text.