1. A bicycle hub freewheel assembly configured to be mounted in a freely rotatable manner to a hub shaft of a bicycle hub, comprising:
a cylindrical outer main body including a first outer radially facing portion having a first rotation preventing section configured to radially engage an inner radially facing part of at least one first sprocket such that the outer main body cannot rotate relative to the at least one first sprocket, the cylindrical outer main body also including a second outer radially facing portion; and
a cylindrical adapter mounted in a freely rotatable manner on the second outer radially facing portion of the outer main body, the adapter including a second rotation preventing section configured to radially engage an inner radially facing part of at least one second sprocket such that the adapter cannot rotate relative to the at least one second sprocket.
2. The bicycle hub freewheel assembly as recited in claim 1, wherein
the outer main body and the adapter are constructed of different materials.
3. The bicycle hub freewheel assembly as recited in claim 2, wherein
the first and second rotation preventing sections have a generally identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction, and that are prevented from rotating relative to each other by engaging simultaneously with one of the first and second sprockets.
4. The bicycle hub freewheel assembly as recited in claim 1, wherein
the first and second rotation preventing sections have a generally identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction, and that are prevented from rotating relative to each other by engaging simultaneously with one of the first and second sprockets.
5. The bicycle hub freewheel assembly as recited in claim 4, wherein
the adapter is press fitted onto an outer radially facing portion of the outer main body.
6. A bicycle hub freewheel assembly configured to be mounted in a freely rotatable manner to a hub shaft of a bicycle hub, comprising:
a cylindrical outer main body including a first outer radially facing portion configured to radially engage an inner radially facing part of at least one first sprocket and a second outer radially facing portion, the first and second outer radially facing portions being formed as a single unitary element; and
a cylindrical adapter constructed of a different material than the outer main body, and including an inner engaging section having an inner radially facing surface engaging an outer surface of the second outer radially facing portion of the outer main body such that the adapter cannot rotate relative to the outer main body.
7. The bicycle hub freewheel assembly as recited in claim 6, wherein
the adapter includes a first rotation preventing section that engages an inner radially facing part of at least one second sprocket such that the adapter cannot rotate relative to the at least one second sprocket.
8. The bicycle hub freewheel assembly as recited in claim 7, wherein
the outer main body includes a second rotation preventing section that engages the inner radially facing part of the at least one first sprocket such that the outer main body cannot rotate relative to the at least one first sprocket; and
the first and second rotation preventing sections have generally an identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction.
9. The bicycle hub freewheel assembly as recited in claim 7, wherein
the adapter is press fitted onto the second outer radially facing portion of the outer main body.
10. The bicycle hub freewheel assembly as recited in claim 6, wherein
the adapter is press fitted onto the second outer radially facing portion of the outer main body.
11. A bicycle hub comprising:
a hub shaft;
a bicycle hub freewheel assembly mounted to rotate freely about the hub shaft; and
a hub shell arranged closely adjacent to the bicycle hub outer in an axial direction and mounted to rotate freely about the hub shaft,
the hub freewheel assembly including
a cylindrical outer main body including a first outer radially facing portion having a first rotation preventing section configured to radially engage an inner radially facing part of at least one first sprocket such that the outer main body cannot rotate relative to the at least one first sprocket, the cylindrical outer main body also including a second outer radially facing portion, and
a cylindrical adapter mounted in a freely rotatable manner on the second outer radially facing portion of the outer main body, the adapter including a second rotation preventing section configured to radially engage an inner radially facing part of at least one second sprocket such that the adapter cannot rotate relative to the at least one second sprocket.
12. The bicycle hub as recited in claim 11, wherein
the outer main body and the adapter are constructed of different materials.
13. The bicycle hub as recited in claim 12, wherein
the first and second rotation preventing sections have a generally identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction, and that are prevented from rotating relative to each other by engaging simultaneously with one of the first and second sprockets.
14. The bicycle hub as recited in claim 11, wherein
the first and second rotation preventing sections have a generally identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction, and that are prevented from rotating relative to each other by engaging simultaneously with one of the first and second sprockets.
15. The bicycle hub as recited in claim 14, wherein
the adapter is press fined onto the second outer radially facing portion of the outer main body.
16. A bicycle hub comprising:
a hub shaft;
a bicycle hub freewheel assembly mounted to rotate freely about the hub shaft; and
a hub shell arranged closely adjacent to the bicycle hub freewheel assembly in an axial direction and mounted to rotate freely about the hub shaft,
the hub freewheel assembly including
a cylindrical outer main body including a first outer radially facing portion configured to radially engage an inner radially facing part of at least one first sprocket and a second outer radially facing portion, the first and second outer radially facing portions formed as a single unitary element, and
a cylindrical adapter constructed of a different material than the outer main body, and including an inner engaging section having an inner radially facing surface engaging an outer surface of the second outer radially facing portion of the outer main body such that the adapter cannot rotate relative to the outer main body.
17. The bicycle hub as recited in claim 16, wherein
the adapter includes a first rotation preventing section that engages an inner radially facing part of at least one second sprocket such that the adapter cannot rotate relative to the at least one second sprocket.
18. The bicycle hub as recited in claim 17, wherein
the outer main body includes a second rotation preventing section that engages the inner radially facing part of the at least one first sprocket such that the outer main body cannot rotate relative to the at least one first sprocket; and
the first and second rotation preventing sections have generally an identical diametric cross sectional shape that are arranged closely adjacent to each other in an axial direction.
19. The bicycle hub as recited in claim 17, wherein
the adapter is press fitted onto the second outer radially facing portion of the outer main body.
20. The bicycle hub as recited in claim 16, wherein
the adapter is press fitted onto the second outer radially facing portion of the outer main body.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A tool for engaging and rotating a rebar coupler, said tool comprising:
a member having at least one extension engageable with an end plate of a threaded rebar coupler; and
a shaft attached to the member, such that the shaft and the member are rotatable about an axis of the shaft to engage a threaded rebar coupler via said at least one extension and induce rotation of the threaded rebar coupler for threading the rebar coupler onto an end section of rebar.
2. A tool as set forth in claim 1 further comprising a plurality of extensions.
3. A tool as set forth in claim 2 wherein the member further comprises a face perpendicular to the shaft and adapted for flatwise engagement with the end plate of the threaded rebar coupler.
4. A tool as set forth in claim 3 wherein the extensions extend generally perpendicularly from the face for engagement with the end plate of the threaded rebar coupler.
5. A tool as set forth in claim 4 wherein the tool is adaptable to engage differently sized rebar couplers.
6. A tool as set forth in claim 4 wherein the extensions extend outwardly from the face near the lateral edges of the face.
7. A tool as set forth in claim 6 wherein the extensions are adapted for engagement with a plurality of lateral edges of the end plate.
8. A tool as set forth in claim 7 wherein the member is circular and the extensions are chord-shaped continuations of the circular member.
9. A tool as set forth in claim 8 wherein said chord-shaped extensions and the face cooperate to form a seat that closely conforms to the outline of the end plate for engaging the end plate to facilitate conjoint rotation of the tool and coupler.
10. A tool as set forth in claim 5 wherein the extensions each comprise at least two sets of bearing surfaces for engagement of differently sized rebar couplers.
11. A tool as set forth in claim 10 wherein the member is circular and the extensions are chord-shaped continuations of the circular member, said extensions comprising multiple bearing surfaces for engaging and rotating differently sized rebar couplers without modifying the configuration of the tool.
12. A tool as set forth in claim 4 wherein at least one of the extensions are attachable to and detachable from the face.
13. A tool as set forth in claim 12 wherein the face further comprises at least one hole for receiving said at least one extension.
14. A tool as set forth in claim 13 wherein said at least one hole and said at least one extension are cylindrically shaped.
15. A tool for engaging and rotating a plate, said tool comprising:
a member having at least one extension engageable with a plate; and
a shaft attached to the member, such that the shaft and member may be rotated about an axis of the shaft to engage the plate via said at least one extension and induce rotation of the plate.
16. A tool as set forth in claim 15 further comprising a plurality of extensions.
17. A tool as set forth in claim 16 wherein the member further comprises a face perpendicular to the shaft and adapted for flatwise engagement with the plate for aligning the plate with the member.
18. A tool as set forth in claim 17 wherein the extensions extend generally perpendicularly from the face for engagement with the plate for rotation of the plate.
19. A tool as set forth in claim 18 wherein the tool is adaptable to engage differently sized plates.
20. A method of threading a threaded rebar coupler onto an end section of rebar comprising the steps of:
securing a tool in a rotating machine, such as a rotary drill;
engaging the tool with a threaded rebar coupler;
engaging the threaded rebar coupler with an end section of rebar; and
rotating the drill to induce conjoint rotation of the tool and the coupler so that the threads of the coupler engage the rebar for mounting the coupler on the rebar.