SHIFTER FOR A BICYCLE TRANSMISSION
First Claim
1. A shifter for a bicycle transmission, comprising:
- a housing;
a cable spool for winding a control cable thereon;
an actuator operable to perform a cable-pull operation and a cable-release operation;
a retaining element nonrotatably connected to the cable spool, the retaining element having a retaining contour;
a releasing element nonrotatably connected to the actuator, the releasing element having a releasing contour; and
a locking pawl having first and second ends, the first end supported by the housing, the second end simultaneously engageable with the retaining contour and the releasing contour.
1 Assignment
0 Petitions
Accused Products
Abstract
A shifter for a bicycle transmission that includes a housing, a cable spool, an actuator, a locking pawl simultaneously engageable with teeth of a releasing element and a retaining element. A cable-release operation is initiated by motion of the releasing element relative to the retaining element which causes the releasing teeth to slide under the locking pawl and lift the locking pawl over a retaining tooth. A preload spring is arranged between the actuator and the cable spool to prevent play between the actuator and the cable spool and is also preloaded during the cable-release operation to assist the cable-release operation after the locking pawl is released from the retaining teeth.
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Citations
19 Claims
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1. A shifter for a bicycle transmission, comprising:
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a housing;
a cable spool for winding a control cable thereon;
an actuator operable to perform a cable-pull operation and a cable-release operation;
a retaining element nonrotatably connected to the cable spool, the retaining element having a retaining contour;
a releasing element nonrotatably connected to the actuator, the releasing element having a releasing contour; and
a locking pawl having first and second ends, the first end supported by the housing, the second end simultaneously engageable with the retaining contour and the releasing contour. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18)
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16. The shifter as defined in claim 16, wherein the actuator and the releasing element are formed as one part.
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19. The shifter as defined in claim 19, wherein the brake housing segment and the housing form one part.
Specification