Linear electromagnetic actuator and a drive unit on which it is equipped
AssigneeNippon Thompson Co., Ltd.
InventorSeiji Takei
Life of this patent
Estimating the term…
Abstract
A linear electromagnetic actuator and drive unit are described that ensure high durability for the wiring used for signal transmission, minimize the effect of the friction of said wiring on the operation of the moving portion to enable the obtaining of a highly precise operating state, achieve both reduced costs and compact size, and are able to maintain the function of the wiring itself for a long time. The above effects are obtained by using a printed wiring substrate for the wiring, and providing a sliding member that guides the printed wiring substrate by sliding on it.
Claims14
A linear electromagnetic actuator having a flexible printed wiring substrate that transmits signals, connected between a stationary side of the actuator and a moving side of the actuator, said actuator comprising:
- a stationary, rigid member secured to the stationary side of the actuator, said member having a substantially flat upper surface with a low coefficient of friction, the flexible printed wiring substrate being supported on said flat upper surface in a predetermined bent state as the moving side moves relative to the stationary side.
A drive unit that includes a linear electromagnetic actuator having a stationary side and a moving side, said drive unit comprising:
- a flexible printed wiring substrate that transmits signals, connected between the stationary and moving sides of the actuator;
- and
- a stationary, rigid member secured to the stationary side of the actuator, said member having a substantially flat upper surface with a low coefficient of friction, the flexible printed wiring substrate being supported on said flat upper surface in a predetermined bent state as the moving side moves relative to the stationary side.
A linear electromagnetic actuator having a flexible printed wiring substrate that transmits signals, juxtapositioned in a bent state between and connecting primary and secondary sides that mutually perform relative movement, said actuator comprising:
- a sliding member extending in a direction of relative movement of the primary and secondary sides, said sliding member having a surface with a low coefficient of friction, the printed wiring substrate being slidably supported on the surface of said sliding member.
Dependencies are inferred from the claim text.