[Object] To provide a full float type crankshaft device for bicycle which allows a sub-assembly formed by integrating crankshafts to be mounted on a body side. [Constitution] The crankshaft device includes a shaft 1 provided at a center of a cylindrical hanger member 9, having cranks attached to both end portions, which is configured to have bearings 3,3 provided at inner sides where the cranks are attached, a housing 2 configured at an outer diameter side of the shaft 1 to support the shaft 1 via the bearings 3, and clamp nuts 5 each with a cup-like shape as a whole, which are attached to both end portions of the housing 2 having O-rings 6 as rubber elastic elements interposed between both end portions.
CRANKSHAFT DEVICE FOR BICYCLE
19.11.2015
Patent
Elektronische Ressource
Englisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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