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US 8,555,609 B1Granted
Chain tool
AssigneeSpecialized Bicycle Components, Inc.
InventorsJason L. Chamberlain, Colin Alexander Davis Daw
Life of this patent
Estimating the term…
Abstract
A chain tool can be used to assemble or disassemble links on a chain, in particular a bicycle chain. The chain tool can be shaped and sized to be received within a component of a bicycle. For example, the chain tool can be received into a steerer tube at the head tube of the bicycle. The chain tool can also serve as a part of a headset, such as being a top cap of the headset.
Claims23
An assembly comprising:
- a chain tool, comprising:
- a main body having:
- a cavity extending through the main body and establishing a longitudinal axis;
- a main portion;
- a top portion adjacent the main portion, the top portion comprising a lip that extends radially outward from the longitudinal axis and from the main portion, the top portion shaped and sized to form a top cap of a headset with the lip configured to engage a stem or a spacer on a bicycle;
- and
- a channel in the main portion for receiving a link of a bicycle chain,
- wherein the cavity extends from a first opening at the top portion, through the both the top portion and the main portion to a second opening at the channel in the main portion;
- and
- a shaft received into and movable within the cavity of the main body, the shaft comprising a threaded section and a pin, the pin located on one end of the shaft and configured to contact and engage a chain pin of the link of the bicycle chain.
7 more elements
An assembly comprising:
- chain tool, comprising:
- a main body having:
- a cavity extending through the main body and establishing a longitudinal axis, the cavity having a threaded cavity portion;
- a main portion;
- a top portion adjacent the main portion and forming a head, the main portion forming a stem having an outer dimension less than the top portion;
- and
- a channel in the main portion for receiving a link of a bicycle chain, the cavity extending through both the head and the stem and opening at the channel;
- and
- a shaft received into and movable within the cavity of the main body, the shaft comprising a threaded section, an unthreaded section, and a pin, the pin located on one end of the shaft and configured to contact and engage a chain pin of the link of the bicycle chain, the threaded section positioned between the unthreaded section and the pin,
- the shaft having a first position wherein the shaft threaded section is configured to engage the threaded cavity portion and a second position wherein when the unthreaded section is positioned within the threaded cavity portion the shaft threaded section is positioned outside of the threaded cavity portion.
7 more elements
An assembly comprising:
- chain tool, comprising:
- a main body having:
- a cavity extending through the main body and establishing a longitudinal axis, the cavity having a threaded cavity portion;
- a main portion;
- a top portion adjacent the main portion and forming a head, the main portion forming a stem having an outer dimension less than the top portion;
- and
- a channel in the main portion for receiving a link of a bicycle chain, the cavity extending through both the head and the stem and opening at the channel;
- and
- a shaft received into and movable within the cavity of the main body, the shaft comprising a threaded section, an unthreaded section, and a pin, the pin located on one end of the shaft and configured to contact and engage a chain pin of the link of the bicycle chain, the shaft having a first position wherein the shaft threaded section is configured to engage the threaded cavity portion and a second position wherein the unthreaded section is positioned within the threaded cavity portion such that the shaft threaded section extends past and away from the main body;
- wherein the shaft further comprises a shaft head and a shaft stem, the shaft head comprising a socket configured to receive a tool.
7 more elements
An assembly comprising:
- chain tool, comprising:
- a main body having:
- a cavity extending through the main body and establishing a longitudinal axis, the cavity having a threaded cavity portion;
- a main portion;
- a top portion adjacent the main portion and forming a head, the main portion forming a stem having an outer dimension less than the top portion;
- a channel in the main portion for receiving a link of a bicycle chain, the cavity extending through both the head and the stem and opening at the channel;
- and
- a foldable handle;
- and
- a shaft received into and movable within the cavity of the main body, the shaft comprising a threaded section, an unthreaded section, and a pin, the pin located on one end of the shaft and configured to contact and engage a chain pin of the link of the bicycle chain, the shaft having a first position wherein the shaft threaded section is configured to engage the threaded cavity portion and a second position wherein the unthreaded section is positioned within the threaded cavity portion such that the shaft threaded section extends past and away from the main body.
7 more elements
An assembly comprising:
- chain tool, comprising:
- a main body having:
- a cavity extending through the main body and establishing a longitudinal axis, the cavity having a threaded cavity portion;
- a main portion;
- a top portion adjacent the main portion and forming a head, the main portion forming a stem having an outer dimension less than the top portion;
- and
- a channel in the main portion for receiving a link of a bicycle chain, the cavity extending through both the head and the stem and opening at the channel;
- a shaft received into and movable within the cavity of the main body, the shaft comprising a threaded section, an unthreaded section, and a pin, the pin located on one end of the shaft and configured to contact and engage a chain pin of the link of the bicycle chain, the shaft having a first position wherein the shaft threaded section is configured to engage the threaded cavity portion and a second position wherein the unthreaded section is positioned within the threaded cavity portion such that the shaft threaded section extends past and away from the main body;
- and
- a master link having a pair of plates received into the main body.
7 more elements
Dependencies are inferred from the claim text.