초록 ▼

A dual-function exercise device includes lower body exercise device, a frame, and a movable handle assembly. The movable handle assembly includes two independent pulling devices and a rotary shaft journalled on the frame. Each pulling device includes a pulley disposed rotatably on the frame, a pull

A dual-function exercise device includes lower body exercise device, a frame, and a movable handle assembly. The movable handle assembly includes two independent pulling devices and a rotary shaft journalled on the frame. Each pulling device includes a pulley disposed rotatably on the frame, a pull cord wound on the pulley, a handgrip fastened to an end of the cord and movable to unwind the cord from the pulley, and a biasing unit for biasing the cord to wind around the pulley when the cord is pulled and is subsequently released.

대표청구항 ▼

The invention claimed is: 1. A dual-function treading exerciser comprising: a lower body exerciser and an upper body exerciser, said upper body exerciser including: a frame joined to the lower body exerciser; a movable handle assembly including a pair of pulling devices mounted on said frame, and a

The invention claimed is: 1. A dual-function treading exerciser comprising: a lower body exerciser and an upper body exerciser, said upper body exerciser including: a frame joined to the lower body exerciser; a movable handle assembly including a pair of pulling devices mounted on said frame, and a rotary shaft journalled substantially vertically on said frame, each of said pulling devices including, a pulley disposed on said frame, a pull cord wound on said pulley, a handgrip fastened to an end of said pull cord and movable rearwardly to unwind said pull cord from said pulley, and a biasing unit for biasing said pull cord to wind around said pulley when said cord is pulled rearwardly and is subsequently released; a flywheel assembly mounted on said rotary shaft, said flywheel assembly including a flywheel and a pair of magnetically conductive rings disposed respectively and on opposite sides of said flywheel; a unidirectional bearing disposed between said rotary shaft and each of said pulleys so as to rotate said rotary shaft synchronously with said pulleys only when said pulleys rotate in a direction in which said pull cords are unwound from said pulleys; and, a magnetic resistance device disposed adjacent to said flywheel assembly so as to provide resistance to rotation of said flywheel assembly. 2. The dual-function exerciser of claim 1, wherein said lower body exerciser comprises: a treading platform; and a continuous tread extending around said platform. 3. The dual-function exerciser of claim 1, wherein said movable handle assembly is joined to a front portion of said frame. 4. The dual-function exerciser of claim 1, wherein said frame extends upwardly from a front portion of said dual-function exerciser. 5. The dual-function exerciser of claim 1, wherein said frame extends upwardly from a front portion of said dual-function exerciser, and said movable handle assembly is joined to an upper portion of said frame. 6. The dual-function exerciser of claim 1, and further comprising fixed handles, and wherein said movable handle assembly is disposed substantially higher than said fixed handles. 7. The dual-function exerciser of claim 1, wherein said biasing unit of each of said pulling devices includes a spring member biased to rotate in a predetermined direction. 8. The dual-function exerciser of claim 7, wherein said spring member is a spiral spring that is fastened to a housing at one end and to the respective one of said pulleys at the other end. 9. The dual-function treading exerciser of claim 1, wherein said magnetic resistance device includes: a positioning seat fixed on said frame and having two spaced-apart parallel sliding rails; and a magnet seat including a U-shaped body, said body having two opposite side walls which are provided respectively with two aligned magnet units, between which said flywheel assembly is disposed, and a connecting wall which interconnects said side walls and which is formed with a threaded hole that engages a threaded shaft so as to move said U-shaped body toward and away from said flywheel when said threaded shaft is rotated relative to said positioning seat, thereby adjusting magnitude of the resistance. 10. The dual-function treading exerciser of claim 9, wherein said magnetic resistance device further includes: a motor disposed on said frame and provided with a motor shaft; and a gear sleeved on said motor shaft and engaging an externally threaded portion of said threaded shaft so as to transfer rotation of said motor shaft to said threaded shaft. 11. A dual-function treading exerciser comprising: a lower body exerciser and an upper body exerciser, said upper body exerciser including; a frame joined to the lower body exerciser; a movable handle assembly including a pair of pulling devices mounted on said frame, and a rotary shaft journalled substantially vertically on said frame, each of said pulling devices including, a chamber, a pulley disposed in said chamber, a pull cord wound on said pulley, a handgrip fastened to an end of said pull cord and movable rearwardly to unwind said pull cord from said pulley, and a biasing unit for biasing said pull cord to wind around said pulley when said cord is pulled rearwardly and is subsequently released; a flywheel assembly mounted on said rotary shaft, said flywheel assembly including a flywheel, and a pair of magnetically conductive rings disposed respectively and on opposite sides of said flywheel; a unidirectional bearing disposed between said rotary shaft and each of said pulleys so as to rotate said rotary shaft synchronously with said pulleys only when said pulleys rotate in a direction, in which said pull cords are unwound from said pulleys; and, a magnetic resistance device disposed adjacent to said flywheel assembly so as to provide resistance to rotation of said flywheel assembly. 12. The dual-function exerciser of claim 11, wherein said lower body exerciser comprises: a treading platform; and a continuous tread extending around said platform. 13. The dual-function exerciser of claim 11, wherein said movable handle assembly is joined to a front portion of said frame. 14. The dual-function exerciser of claim 11, wherein said frame extends upwardly from a front portion of said dual-function exerciser. 15. The dual-function exerciser of claim 11, wherein said frame extends upwardly from a front portion of said dual-function exerciser, and said movable handle assembly is joined to an upper portion of said frame. 16. The dual-function exerciser of claim 11, and further comprising fixed handles, and wherein said movable handle assembly is disposed substantially higher than said fixed handles. 17. The dual-function exerciser of claim 11, wherein said biasing unit of each of said pulling devices includes a spring member biased to rotate in said chamber in a predetermined direction. 18. The dual-function exerciser of claim 17, wherein said spring member is a spiral spring that is fastened to a housing at one end and to the respective one of said pulleys at the other end. 19. The dual-function treading exerciser of claim 11, wherein said magnetic resistance device includes: a positioning seat fixed on said frame and having two spaced-apart parallel sliding rails; and a magnet seat including a U-shaped body, said body having two opposite side walls which are provided respectively with two aligned magnet units, between which said flywheel assembly is disposed, and a connecting wall which interconnects said side walls and which is formed with a threaded hole that engages a threaded shaft so as to move said U-shaped body toward and away from said flywheel when said threaded shaft is rotated relative to said positioning seat, thereby adjusting magnitude of the resistance. 20. The dual-function treading exerciser of claim 19, wherein said magnetic resistance device further includes: a motor disposed on said frame and provided with a motor shaft; and a gear sleeved on said motor shaft and engaging an externally threaded portion of said threaded shaft so as to transfer rotation of said motor shaft to said threaded shaft. 21. A dual-function treading exerciser comprising: a lower body exerciser and an upper body exerciser, said upper body exerciser including; a frame joined to the lower body exerciser; a movable handle assembly including a pair of pulling devices mounted on said frame to operate independently of one another to enable a plurality of upper body exercises, and a rotary shaft journalled substantially vertically on said frame, each of said pulling devices including, a pulley disposed on said frame, a pull cord wound on said pulley, a handgrip fastened to an end of said pull cord and movable rearwardly to unwind said pull cord from said pulley, and a biasing unit for biasing said pull cord to wind around said pulley when said cord is pulled rearwardly and is subsequently released; a flywheel assembly mounted on said rotary shaft, said flywheel assembly including a flywheel, and a pair of magnetically conductive rings disposed respectively and on opposite sides of said flywheel; and, a unidirectional bearing disposed between said rotary shaft and each of said pulleys so as to rotate said rotary shaft synchronously with said pulleys only when said pulleys rotate in a direction, in which said pull cords are unwound from said pulleys. 22. The dual-function exerciser of claim 21, wherein said lower body exerciser comprises: a treading platform; and a continuous tread extending around said platform. 23. The dual-function exerciser of claim 21, wherein said movable handle assembly is joined to a front portion of said frame. 24. The dual-function exerciser of claim 21, wherein said frame extends upwardly from a front portion of said dual-function exerciser. 25. The dual-function exerciser of claim 21, wherein said frame extends upwardly from a front portion of said dual-function exerciser, and said movable handle assembly is joined to an upper portion of said frame. 26. The dual-function exerciser of claim 21, and further comprising fixed handles, and wherein said movable handle assembly is disposed substantially higher than said fixed handles. 27. The dual-function exerciser of claim 21, wherein said biasing unit of each of said pulling devices includes a spring member biased to rotate in a predetermined direction. 28. The dual-function exerciser of claim 27, wherein said spring member is a spiral spring that is fastened to a housing at one end and to the respective one of said pulleys at the other end. 29. The dual-function treading exerciser of claim 21, wherein said movable handle assembly further includes: magnetic resistance device disposed adjacent to said flywheel assembly so as to provide resistance to rotation of said flywheel assembly. 30. The dual-function treading exerciser of claim 29, wherein said magnetic resistance device includes: a positioning seat fixed on said frame and having two spaced-apart parallel sliding rails; and a magnet seat including a U-shaped body, said body having two opposite side walls which are provided respectively with two aligned magnet units, between which said flywheel assembly is disposed, and a connecting wall which interconnects said side walls and which is formed with a threaded hole that engages a threaded shaft so as to move said U-shaped body toward and away from said flywheel when said threaded shaft is rotated relative to said positioning seat, thereby adjusting magnitude of the resistance. 31. The dual-function treading exerciser of claim 30, wherein said magnetic resistance device further includes: a motor disposed on said frame and provided with a motor shaft; and a gear sleeved on said motor shaft and engaging an externally threaded portion of said threaded shaft so as to transfer rotation of said motor shaft to said threaded shaft.