MODIFICATION TO THE BICYCLE CRANKSET SYSTEM BY JOINTS ON THE RIGHT AND LEFT PEDAL ARMS, WITH CENTRAL PIN AND BUILT-IN CHAINRING
Patent Information
- Authority / Receiving Office
- IT · IT
- Patent Type
- Utility models
- Current Assignee / Owner
- MONTANARI ALDO
- Filing Date
- 1996-05-10
- Publication Date
- 2001-05-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing bicycle crankset systems lack flexibility and stability, particularly in the connection between the pedal arms and the central pin, leading to inefficient power transfer and discomfort during cycling.
A bicycle crankset system with joints on the right and left pedal arms, featuring a central pin and built-in chainring, utilizing a ball bearing joint and stabilization bearings to enhance rigidity and ensure a smooth pedal path.
The system provides improved flexibility and stability, enhancing power transfer efficiency and reducing discomfort by allowing for a more natural pedaling motion.
Description
PC96U000012 DESCRIPTION of the Industrial Utility Model: "modification to the bicycle crankset system by means of joints on the right and left pedal arms, with central pin and incorporated chain ring", on behalf of MONTANARI ALDO, resident in Piacenza via Emilia Pave se n e 119, filed on >IC>|05p^G TEXT BEFORE DESCRIPTION, The tool must be mounted mirror-image on both pedals. It consists of an alloy disc with a circular hole in the center, a loop to accommodate the base of the pedal arm, and a circular tunnel on the outside, partially open only outward. The disc is secured to the bicycle frame with screws. The pedal block consists of an arm that extends from the central axle (a single body with chainring), joined to a joint consisting of a ball bearing; this is joined to a second arm that ends in a T, with the normal pedal on the outside and an axle equipped with one guide ball bearing and two stabilizing bearings on the inside, which fit into the tunnel of the alloy disc, making the structure rigid and the pedal's path fixed.Drawing 1 shows the alloy disc with a central hole and an open tunnel along the outer band; drawing 2 represents the central section of the same; the other drawings, from 3 to 6, represent the pedal block in four different progressive positions with respect to the disc (here stylized).
Claims
CLAIMS 1) shape of the alloy disc, in a single block, characterized by a) central circular hole, except for a U-shaped handle for housing the pin which connects the pedal arm with the chain-holder crown; b) tunnel along the outer perimeter, made in J 2) pin, connected to the pedal arm, 180 ° from the pedal itself, to be housed in the tunnel at J_1, complete with 1 bearing guide ball net and 2 stabi ball bearings. lization. 3) ball bearing joint between the two pedal arms. PC9 6U 0 0001 2