IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0087079
(2002-03-01)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
5 인용 특허 :
0 |
초록
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An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around
An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around connectors in the base and exits and reenters through two holes in one side, forming an external run that is connectable to the movable platform by a hook on its underside, and two stub handles are stored in clips in the base and attachable to filling on the outside for use. Two optional disk assemblies are mountable on the base and the cover by pins that fit loosely in holes therein, and have freely rotatable top pieces that add rotational movements to the reciprocating movements of the base and the movable platform. Elastic connecting bands are provided for tying the disk assemblies together during rotation, for closed-chain exercise, and are removable for open-chain exercise. These bands also resist separation of the platforms when the first resistance band is not connected. Representative exercises of various kinds are diagrammed.
대표청구항
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An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around
An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around connectors in the base and exits and reenters through two holes in one side, forming an external run that is connectable to the movable platform by a hook on its underside, and two stub handles are stored in clips in the base and attachable to filling on the outside for use. Two optional disk assemblies are mountable on the base and the cover by pins that fit loosely in holes therein, and have freely rotatable top pieces that add rotational movements to the reciprocating movements of the base and the movable platform. Elastic connecting bands are provided for tying the disk assemblies together during rotation, for closed-chain exercise, and are removable for open-chain exercise. These bands also resist separation of the platforms when the first resistance band is not connected. Representative exercises of various kinds are diagrammed. aim 1 and further comprising: a second planetary gear carrier member supported for rotation; and a plurality of second planet gears supported by the second carrier member, the plurality of second planet gears being rotatably driven by the gear end of the drive shaft and interacting with the ring gear to rotatably drive the second carrier member. 5. The impact wrench as set forth in claim 4 and further comprising a carrier gear supported by the second carrier member for rotation with the second carrier member, the carrier gear engaging the first-mentioned plurality of planet gears to rotatably drive the first-mentioned carrier member.6. The impact wrench as set forth in claim 1 wherein said gear assembly provides a gear reduction ratio of at least 13:1.7. The impact wrench as set forth in claim 6 wherein said gear assembly provides a gear reduction ratio of about 16:1.8. The impact wrench as set forth in claim 1 wherein said gear assembly is a two-stage planetary gear assembly.9. The impact wrench as set forth in claim 8 wherein said gear assembly provides a gear reduction ratio of at least 13:1.10. The impact wrench as set forth in claim 8 wherein said gear assembly provides a gear reduction ratio of 16:1.11. The impact wrench as set forth in claim 8 wherein said gear assembly includes a first stage and a second stage, one of the first stage and the second stage providing a gear reduction ratio of 4:1, the other of the first stage and the second stage providing a gear reduction ratio of at least 3:1.12. The impact wrench as set forth in claim 11 wherein the other of the first stage and the second stage provides a gear reduction ratio of 4:1.13. The impact wrench as set forth in claim 1 wherein the power source is a battery, and wherein the impact wrench further comprises the battery supported by the tool housing.14. The impact wrench as set forth in claim 13 wherein the battery is removably supported by the tool housing.15. The impact wrench as set forth in claim 1 wherein the gear assembly further includes a biasing member positioned between the gear assembly housing and the ring gear, the biasing member applying a biasing force to components of the impact wrench, the biasing force being applied in a direction toward the tool element.16. The impact wrench as set forth in claim 15 wherein the biasing member is an O-ring positioned between the gear assembly housing and the ring gear.17. An impact wrench comprising: a tool housing; a motor supported by the tool housing and connectable to a power source; and a drive assembly drivingly connectable between the motor and a tool element and operable to drive the tool element for working on a workpiece, the drive assembly including a cam shaft rotatably drivable by the motor and defining a helical first groove and a helical second groove, at least one of the first groove and the second groove having an extended axial length,a ram member drivingly connected to the cam shaft and including a ram lug,a cam ball engageable between the cam shaft and the ram member to connect the ram member to the cam shaft for rotation with and axially movement relative to the cam shaft, andan anvil member including an anvil lug engageable with the ram lug to drive the anvil member, the anvil member being drivingly connectable to the tool element to rotatably drive the tool element; wherein said impact wrench is selectively operable to drive the tool element in a forward direction and in a reverse direction, wherein, during operation in the forward direction, the cam ball is movable in one of the first groove and the second groove, and wherein, during operation in the reverse direction, the cam ball is movable in the other of the first groove and the second groove; and wherein the first groove has a first axial length, and wherein the second groove has a second axial length, the second axial length being less than the first axial length. 18. The impact wrench as set forth in claim 17, whe rein the motor includes a rotatable drive shaft having a gear end, the impact wrench further comprising a gear assembly including a gear assembly housing supported by the tool housing, a ring gear supported by the gear assembly housing, one of the gear assembly housing and the ring gear having an end defining a first bearing race, a planetary gear carrier member supported for rotation relative to the ring gear and defining a second bearing race, the carrier member being drivingly engageable with the tool element to drive the tool element, a plurality of planet gears supported by the carrier member and drivingly connectable to the gear end of the drive shaft, the plurality of planet gears interacting with the ring gear to rotatably drive the carrier member, and a plurality of bearing members supported between the first bearing race and the second bearing race. 19. The impact wrench as set forth in claim 18 wherein the ring gear has the end defining the first bearing race.20. The impact wrench as set forth in claim 18 wherein the gear assembly further includes an annular retainer engaging each of the plurality of bearing members.21. The impact wrench as set forth in claim 18 wherein the gear assembly provides a gear reduction ratio of at least 13:1.22. The impact wrench as set forth in claim 18 wherein the gear assembly provides a gear reduction ratio of 16:1.23. The impact wrench as set forth in claim 18, wherein the cam shaft is connected to the carrier member for rotation with the carrier member.24. The impact wrench as set forth in claim 18, wherein the drive assembly is connected between the gear assembly and the tool element.25. The impact wrench as set forth in claim 18 wherein the gear assembly further includes a second planetary gear carrier member supported for rotation, and a plurality of second planet gears supported by the second carrier member, the plurality of second planet gears being rotatably driven by the gear end of the drive shaft and interacting with the ring gear to rotatably drive the second carrier member. 26. The impact wrench as set forth in claim 25 wherein the gear assembly further includes a carrier gear supported by the second carrier member for rotation with the second carrier member, the carrier gear engaging the first-mentioned plurality of planet gears to rotatably drive the first-mentioned carrier member.27. The impact wrench as set forth in claim 18 wherein the gear assembly is a two-stage planetary gear assembly.28. The impact wrench as set forth in claim 27 wherein the gear assembly provides a gear reduction ratio of at least 13:1.29. The impact wrench as set forth in claim 28 wherein the gear assembly provides a gear reduction ratio of 16:1.30. The impact wrench as set forth in claim 27 wherein the gear assembly includes a first stage and a second stage, one of the first stage and the second stage providing a gear reduction ratio of 4:1, the other of the first stage and the second stage providing a gear reduction ratio of at least 3:1.31. The impact wrench as set forth in claim 30 wherein the other of the first stage and the second stage provides a gear reduction ratio of 4:1.
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