Importance

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Abstract

A cord winder for winding a cord comprises a first structure having a bottomed cylindrical shape and a second structure rotatably held in the first structure. The second structure includes a circular base portion, a center cylindrical stud raised on a center of the circular base portion and radially extending ribs formed on an outer surface of the center cylindrical stud. The ribs are arranged to constitute a bobbin structure. The first and second structures are provided with a cord inserting groove through which the cord can be led to the bobbin structure when the first and second structures take mutually coincident positions. The cord is wound on the bobbin structure when relative rotation takes place between the first and second structures. A braking structure is employed for braking the relative rotation when an external force is applied to the first and second structures to induce the relative rotation. The braking structure includes a curved toothed structure connected to one of the first and second structures and a resilient projection possessed by the other of said first and second structures. The projection is resiliently engaged with the toothed member.

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First Claim