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Priority to ES1975211793UpriorityCriticalpatent/ES211793Y/en
Publication of ES211793UpublicationCriticalpatent/ES211793U/en
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Publication of ES211793YpublicationCriticalpatent/ES211793Y/en
Speed box, particularly for bicycles, characterized in that it is constituted by elements generally of straight section forming all of them together a single piece, defining the aforementioned elements a low profile that leads to a box of transverse pinions, beyond which a rear fork extends whose profile arms are attached to tie rods that extend the high profile, on the one hand by bearings (chunaceras) for receiving the axle of a wheel and on the other by a profile that is open, in the direction of the passage of wheel delimited by the fork and the straps, in order to simultaneously constitute a transverse element for reinforcement of the elbow and a partial mudguard of the rear wheel. (Machine-translation by Google Translate, not legally binding)
ES1975211793U1975-04-241975-04-24
FRAME FOR SPEEDS, PARTICULARLY FOR BICYCLES.
ExpiredES211793Y
(en)
Improvements in the construction of devices for the propulsion by hand of bicycles and other vehicles (Machine-translation by Google Translate, not legally binding)