Flexible shaft whose core yarn elasticity is less than that of wound yarn
AssigneeInderflex-Technoflex
InventorDenis Tores
Life of this patent
Estimating the term…
Abstract
A flexible shaft designed to rotate inside a sheath for transmitting rotary motion can include at least one core wire and winding wired wound around the core wire. The core wire has an elasticity and resilience that are lower than the elasticity and resilience of the winding wires. According to some examples, the core wire can be formed of annealed copper or annealed brass. The winding wires can be formed of steel.
Claims17
A flexible shaft designed to rotate inside a sheath for the purpose of transmitting rotary motion, the shaft comprising at least one core wire and winding wires wound around the core wire, the winding wires having a substantially smooth and continuous outer surface wherein the core wire presents elasticity and resilience that are lower than the elasticity and resilience of the winding wires.
A rotary motion transmission device comprising a sheath and a flexible shaft received inside the sheath, the sheath comprising a core formed of a hollow cylinder whose inside diameter is arranged to enable the shaft to rotate inside the sheath, the flexible shaft having at least one core wire and winding wires wound around the core wire, the winding wires having a substantially smooth and continuous outer surface, wherein the core wire has an elasticity that is lower than the elasticity of the winding wires.
An adjustment system for adjusting a seat of a motor vehicle, the system comprising:
- a seat;
- at least one adjustment runner mounted on a structure of the motor vehicle;
- adjustable means for fastening the seat to the runner(s);
- a drive motor provided with at least one rotary outlet;
- and
- a transmission disposed between the outlet of the drive motor and the adjustable means, so as to move the adjustable means along the adjustment runner in response to the outlet rotating, the transmission including a flexible shaft rotatably received within a sheath, the flexible shaft having a core wire and winding wires wound around the core wire, the winding wires having a smooth, continuous surface, wherein the core wire presents elasticity and resilience that are lower than the elasticity and resilience of the wires.
Dependencies are inferred from the claim text.