Hydraulic Dual Control Device for Bicycle

摘要

A bicycle dual control device hydraulically operated, so that using one single device the cyclist may operate, by applying different hand pressures or taps from the handlebar, two unidirectional control mechanisms, preferably a brake and a bicycle gear-shifting mechanisms. The control device comprises two unidirectional control units within a single lever or handgrip attached to the handlebar, wherein each one of them comprises an acting member, an operating member connected to a control circuit and a coupling element which links the two previous members. In a preferred embodiment of the invention, the operating member related to the gear shifting is hydraulic and comprises a piston and a cylinder mounted integrated inside the brake acting member.

主权项

1. A bicycle dual control device (1) comprising:
a housing cover (60), a first supporting member (17) attached to the bicycle handlebar (0) with a mounting member (50); a first unidirectional control unit (10), configured to operate a first control mechanism through a first control circuit (14), comprising a first operating member (16) linked to the first control circuit (14) and operated by a first acting element (11) to be operated with the hand or fingers of the cyclist, and a first coupling assembly (15) which links said first operating member (16) with said first acting element (11), therefore the first acting element (11) pivots around a fix first pivot axis (B) of said first supporting member (17) roughly orthogonal to the riding plane of the bicycle; and a second unidirectional control unit (20), configured to operate a second control mechanism through a second control circuit (24), comprising a second operating member (26) linked to the second control circuit (24) and operated by a second acting element (21) to be operated with the hand or fingers of the cyclist, and a second coupling assembly (25) which links said second operating member (26) with said second acting element (21); Characterized in that: the second control unit (20) is hydraulic and it is integrated inside the first acting element (11), and the second operating member (26) comprises a second master cylinder (22) mounted into the body of the first acting element itself (11) and a second master piston (23) reciprocating within said second master cylinder (22) and biased by means of a second return spring (18), being the second acting element (21) coupled to the second master piston (23) through the second coupling assembly (25) that pushes said second master piston (23) inside said second master cylinder (22).