Grip gear-shifter for actuating derailleur of bicycle
AssigneeNational Science Council
InventorsChan-Hua Feng, Jen-Ji Wang, I-Chao Yan, Te-Sheng Tseng
Life of this patent
Estimating the term…
Abstract
A grip gear-shifter for being used in actuating a derailleur of a bicycle is provided. The grip gear-shifter includes a return spring, a resilient steel plate having a polyhedron-formed controlling pawl, a guiding ring having a guiding notch for guiding a cable, a first module for lodging and positioning said controlling pawl when the bicycle are in the state of shifting gears, and a second module having a projection and a positioning unit for operating in coordination with the return spring and the resilient steel plate, thereby forming a relative motion of the resilient steel plate and the first module to correctly shift gears when the bicycle are in the state of shifting gears.
Claims15
A grip gear-shifter for being used in actuating a derailleur of a bicycle, comprising:
- a return spring;
- a resilient steel plate having a polyhedron-formed controlling pawl;
- a guiding ring having a guiding notch for guiding a cable;
- a first module for lodging and positioning said controlling pawl when said bicycle is in the state of shifting gears;
- and
- a second module having a projection and a positioning unit for operating in coordination with said return spring and said resilient steel plate,
- thereby forming a relative motion of said resilient steel plate and said first module to correctly shift gears when said bicycle is in said state of shifting gears, including:
- an operating grip having plural fixing slots for being used in operations of up-shift and down-shift, wherein said operating grip comprises said projection and said positioning unit for pressing said return spring to form a resilience due to the deformation of said return spring, wherein said positioning unit comprises a contacting portion and a positioning lump for said controlling pawl not being limited in said notch and having space to move when said grip-shifter in said state of shifting gears.
A grip gear-shifter for being used in actuating a derailleur of a bicycle, comprising:
- a return spring;
- a resilient steel plate having a polyhedron-formed controlling pawl;
- a guiding ring having a guiding slot and a circular indent for guiding and receiving a cable, a spring slot for receiving said return spring and a guiding notch for receiving said resilient steel plate;
- a first module for lodging and positioning said controlling pawl when said bicycle is in the state of shifting gears;
- and
- a second module having a projection and a positioning unit for operating in coordination with said return spring and said resilient steel plate,
- thereby forming a relative motion of said resilient steel plate and said first module to correctly position said derailleur when said bicycle is in said state of shifting gears, including:
- an operating grip having plural fixing slots for being used in operations of up-shift and down-shift, wherein said operating grip comprises said projection and said positioning unit for pressing said return spring to form a resilience due to the deformation of said return spring, wherein said positioning unit comprises a contacting portion and a positioning lump for said controlling pawl not being limited in said notch and having space to move when said grip-shifter in said state of shifting gears.
A grip gear-shifter for being used in actuating a derailleur of a bicycle, comprising:
- a return spring;
- a resilient steel plate having a polyhedron-formed controlling pawl;
- a guiding ring having a guiding slot and a circular indent for guiding and receiving a cable, a spring slot for receiving said return spring and a guiding notch for receiving said resilient steel plate;
- an operating grip having plural fixing slots for being used in operations of up-shift and down-shift, wherein said operating grip comprises a projection and a positioning unit for pressing said return spring to form a resilience due to the deformation of said return spring, wherein said positioning unit comprises a contacting portion and a positioning lump for said controlling pawl not being limited in said notch and having space to move when said grip-shifter in said state of shifting gears;
- a rubber cover for covering said operating grip handled by a user;
- a fixing main body for securing said grip gear-shifter to said bicycle;
- a grip-fixing element having a flange for lodging in an annular slot of said operating grip to fix said operating grip;
- a positioning slide having plural notches for being lodged by said controlling pawl and positioning said controlling pawl when said bicycle is in said state of shifting gears;
- a clamping element for suiting said fixing main body and fixing said fixing main body to a handlebar of said bicycle;
- and
- a cable trimmer disposed at a wound end of said cable for adjusting the tension of said cable.
Dependencies are inferred from the claim text.