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US 4,378,712 AGranted
Control cable
AssigneeNippon Cable System Inc.
InventorJunnosuke Yoshifuji
Life of this patent
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Abstract
A control cable having a foamed elastic layer provided between an inner cable and a conduit, in which by the existence of the foamed elastic layer, the control cable is especially free from a noise generated when operated.
Claims3
A gear-operable control cable comprising:
- a conduit,
- an inner cable inserted in the conduit to be operated, the inner cable being a screw inner cable engagable with a gear comprising a core and teeth formed by winding a wire spirally on the outer surface circumference of the core at a constant gap tightly, and
- a foamed elastic layer adhered closely to the outer circumference of core between adjacent teeth along the entire core so as to project more than the height of the teeth outward radially.
Dependencies are inferred from the claim text.