Actuator for a bicycle gear-shift
First Claim
1. Actuator device (10, 100) for a bicycle gear-shift, comprising an articulated quadrilateral (11) with four connecting rods (21, 22, 23, 24) hinged together according to four pin axes (31, 32, 33, 34) by four pin elements (41, 42, 43, 44), in which the first connecting rod (21) is intended to be integrally fixed to the bicycle frame, the second connecting rod (22) is opposite to the first connecting rod (21) in the articulated quadrilateral (11) and is intended to be fixed to a support for a gear-shift derailleur;
- a motor member (12), having a variable length according to a drive axis (13) and active between two opposite pin elements (41, 42) to move them towards and away from each other deforming the articulated quadrilateral (11);
characterised in that the drive axis (13) substantially intersects the pin axis (31, 32) of both the two pin elements (41, 42) between which the drive member (12) is active.
1 Assignment
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Accused Products
Abstract
A bicycle gear-shift actuator (10, 100) having an articulated quadrilateral support (11) with four connecting rods (21, 22, 23, 24) hinged together by four pin elements (41, 42, 43, 44), and a motor member (12), having a variable length output shaft that travels along a drive axis (13) between two opposite pin elements (41, 42) to move them for deforming the articulated quadrilateral (11). Preferably, the drive axis (13) perfectly intersects the pin axis (32) of at least one (42) of the two pin elements (41, 42).
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Citations
20 Claims
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1. Actuator device (10, 100) for a bicycle gear-shift, comprising
an articulated quadrilateral (11) with four connecting rods (21, 22, 23, 24) hinged together according to four pin axes (31, 32, 33, 34) by four pin elements (41, 42, 43, 44), in which the first connecting rod (21) is intended to be integrally fixed to the bicycle frame, the second connecting rod (22) is opposite to the first connecting rod (21) in the articulated quadrilateral (11) and is intended to be fixed to a support for a gear-shift derailleur; -
a motor member (12), having a variable length according to a drive axis (13) and active between two opposite pin elements (41, 42) to move them towards and away from each other deforming the articulated quadrilateral (11);
characterised in that the drive axis (13) substantially intersects the pin axis (31, 32) of both the two pin elements (41, 42) between which the drive member (12) is active. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A bicycle gear-shift actuator (10, 100) comprising:
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an articulated quadrilateral support (11) with four connecting rods (21, 22, 23, 24) hinged together by four pin (41, 42, 43, 44) which define;
a motor member (12), having a variable length output shaft that traverses along a drive axis (13) extending between two diagonally opposed pins (41, 42) and moves them toward and away from each other to deform the articulated quadrilateral support (11); and
the drive axis (13) substantially intersects each pin axis (31, 32) of the diagonal pins (41, 42). - View Dependent Claims (19, 20)
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Specification