Support device
AssigneeCanon Kabushiki Kaisha
InventorsNobushige Korenaga, Kazunori Iwamoto
Life of this patent
Estimating the term…
Abstract
A supporting device for supporting a member having an inside movable portion includes a main frame, a supporting reference plate on which the member is to be placed and a plurality of driving mechanisms each being disposed between the main frame and the supporting reference plate and each having a high-rigidity displacement providing element and a low-rigidity supporting element of low damping factor, disposed in series.
Claims14
A supporting system for supporting a structure having a movable portion, a gravity center position of the structure being changeable with movement of the movable portion, said system comprising:
- a main frame for supporting the structure through a plurality of supporting members;
- a plurality of first supporting members coupled to a top of said main frame, each of said first supporting members having a predetermined rigidity and comprising an actuator being expansible and contractable along a vertical direction;
- and
- a second supporting member for connecting the structure and the first supporting members, said second supporting member having (i) a predetermined elasticity along the vertical direction, and (ii) a rigidity less than that of said first supporting members,
- wherein the structure is suspended from the top of said main frame through said first and second supporting members.
A method of supporting a structure having a movable portion, said method comprising the steps of:
- providing a main frame for supporting the structure through a plurality of supporting members, wherein the supporting members comprise (i) a plurality of first supporting members coupled to a top of the main frame, each first supporting member having a predetermined rigidity and having an actuator being expansible and countractable along a vertical direction, and (ii) a second supporting member for connecting the structure and the first supporting members, the second supporting member having a predetermined elasticity along the vertical direction and a rigidity less than that of the first supporting members;
- suspending the structure from the top of the main frame through the first and second supporting members;
- and
- moving the movable portion of the structure,
- wherein a gravity center position of the structure is changeable with the movement of the movable portion.
Dependencies are inferred from the claim text.