Shift operating device

Patent metadata

Field	Value
Publication number	US-11279437-B2
Application number	US-202117246992-A
Country	US
Kind code	B2
Filing date	May 3, 2021
Priority date	May 8, 2020
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

A shift operating device includes a frame body, a cable spool assembly, a first elastic component, an upshift lever, a driving pawl, a positioning pawl, a movable component, and a downshift lever. The cable spool assembly is disposed on the frame body. The first elastic component can force the cable spool assembly to rotate along a first direction. The upshift lever can rotate the cable spool assembly along a second direction by the driving pawl. The positioning pawl is disposed on the frame body and engaged with the cable spool assembly. The movable component is linearly and movably disposed on the frame body and in contact with the positioning pawl. The downshift lever is disposed on the frame body and in contact with the movable component. When the downshift lever is pivoted, the downshift lever forces the movable component to detach the positioning pawl from the cable spool assembly.

First claim

What is claimed is:

1. A shift operating device, configured to be mounted on a handlebar and to pull a bicycle cable, comprising:
a frame body;
a cable spool assembly, rotatably disposed on the frame body, wherein the cable spool assembly is configured for the bicycle cable to wind thereon;
a first elastic component, disposed on the cable spool assembly, wherein the first elastic component is configured to force the cable spool assembly to rotate along a first direction;
an upshift lever, pivotably disposed on the frame body;
a driving pawl, pivotably disposed on the upshift lever; wherein when the upshift lever is pivoted, the upshift lever forces the cable spool assembly to rotate along a second direction opposite to the first direction via the driving pawl;
a positioning pawl, pivotably disposed on the frame body, wherein the positioning pawl is removably engaged with the cable spool assembly;
a movable component, linearly and movably disposed on the frame body, wherein the movable component is in contact with the positioning pawl; and
a downshift lever, pivotably disposed on the frame body and in contact with the movable component; wherein when the downshift lever is pivoted, the downshift lever forces the movable component to detach the positioning pawl from the cable spool assembly so as to force the first elastic component to rotate the cable spool assembly along the first direction.

2. The shift operating device according to claim 1 , wherein when the upshift lever is not pivoted, the driving pawl is separated from the cable spool assembly; when the upshift lever is pivoted, the upshift lever drives the driving pawl to engage with the cable spool assembly.

3. The shift operating device according to claim 2 , wherein the frame body has a contact portion; when the upshift lever is not pivoted, the driving pawl is in contact with the contact portion so as to separate the driving pawl from the cable spool assembly; when the upshift lever is pivoted, the driving pawl is separated from the contact portion.

4. The shift operating device according to claim 3 , further comprising a second elastic component, wherein the second elastic component is disposed on the driving pawl, and the second elastic component is configured to force an engagement portion of the driving pawl to move towards the cable spool assembly.

5. The shift operating device according to claim 1 , wherein the frame body comprises a bottom plate and a top plate, the bottom plate and the top plate are spaced apart from each other, the cable spool assembly and the positioning pawl are located between the bottom plate and the top plate, the movable component is movably disposed on the top plate, and the downshift lever is pivotably disposed on the bottom plate and the top plate.

6. The shift operating device according to claim 5 , wherein the top plate comprises a plate portion and a protrusion portion protruding from the plate portion, the movable component has a guide hole, the protrusion portion of the top plate is disposed through the guide hole of the movable component, and the movable component is linearly movable relative to the plate portion.

7. The shift operating device according to claim 6 , wherein the protrusion portion comprises a connection part and at least one positioning part, the at least one positioning part is connected to the plate portion via the connection part, the at least one positioning part is spaced apart from the plate portion, the connection part is located in the guide hole of the movable component, and the movable component is movably located between the at least one positioning part and the plate portion.

8. The shift operating device according to claim 7 , wherein the movable component has at least one recess connected to the guide hole; when the downshift lever is pivoted, the at least one positioning part and the at least one recess are misaligned with each other.

9. The shift operating device according to claim 6 , wherein the protrusion portion and the plate portion are integrally formed into a single piece.

10. The shift operating device according to claim 1 , further comprising a casing and a cover, wherein the cable spool assembly, the first elastic component, the driving pawl, the positioning pawl, and the movable component are located in the casing, the casing has a clamp ring portion and a cable arrangement hole, the clamp ring portion is configured to clamp the handlebar, the cable arrangement hole is located between the downshift lever and the clamp ring portion, and the cover is removably mounted on the casing and covers the cable arrangement hole.

11. The shift operating device according to claim 10 , wherein the cover includes a plate portion and a protrusion portion connected to each other, the protrusion portion is inserted into the cable arrangement hole, and the plate portion covers the cable arrangement hole.

12. The shift operating device according to claim 10 , wherein the cover comprises a plate portion and a pillar portion connected to each other, the casing further has an insertion hole spaced apart from the cable arrangement hole, and the pillar portion is inserted into the insertion hole, and the plate portion covers the cable arrangement hole.

13. The shift operating device according to claim 1 , further comprising a stopping pawl, wherein the stopping pawl is pivotably disposed on the frame body; during a pivoting movement of the downshift lever, the downshift lever is moved from an initial position to a downshift position and then return to the initial position; when the downshift lever is moved from the initial position to the downshift position, the downshift lever forces the positioning pawl to detach from the cable spool assembly via the movable component and forces the stopping pawl to engage with the cable spool assembly via the movable component so that the cable spool assembly is rotated by a first angle along the first direction and then is stopped by the stopping pawl; when the downshift lever returns to the initial position form the downshift position, the stopping pawl is detached from the cable spool assembly, and the positioning pawl is engaged with the cable spool assembly so that the cable spool assembly is rotated by a second angle along the first direction and then is stopped by the positioning pawl.

14. The shift operating device according to claim 13 , wherein the cable spool assembly has a plurality of grooves, there is an angle formed between two lines that respectively connects bottoms of two of the plurality of grooves which are adjacent to each other with a rotation axis of the cable spool assembly, and a sum of the first angle and the second angle is substantially equal to the angle.

15. The shift operating device according to claim 13 , further comprising a second elastic component, wherein the second elastic component is disposed on the stopping pawl, and the second elastic component is configured to force an engagement portion of the stopping pawl to move away from the cable spool assembly.

16. The shift operating device according to claim 1 , further comprising a second elastic component, wherein the second elastic component is disposed on the positioning pawl, and the second elastic component is configured to force an engagement portion of the positioning pawl to move towards the cable spool assembly.

Assignees

• Tektro Technology Corp

Inventors

• Calendrille Jr John L
• Tsai Chung-Sheng

Classifications

• B62M25/04 Primary

  hand actuated · CPC title

• F16C1/18

  in which the end portion of the flexible member is laid along a curved surface of a pivoted member · CPC title

• G05G1/04

  Controlling members for hand actuation by pivoting movement, e.g. levers · CPC title

• G05G1/01

  Arrangements of two or more controlling members with respect to one another (double foot control, e.g. for instruction vehicles G05G1/34; mounting units comprising an assembly with two or more pedals G05G1/36) · CPC title

• B62K23/06 Primary

  Levers · CPC title