Patent
Swim stroke exercise device
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TLDR
A swim stroke exercise device including an adjustable resistance mechanism is provided in this paper, where a roller assembly having a roller clutch and a drive shaft extending from one end and a spring rewind assembly attached opposite the drive shaft is used to simulate a swimming motion.Abstract:
A swim stroke exercise device including an adjustable resistance mechanism is provided The resistance mechanism is attached to one end of the exercise device and includes a roller assembly having a roller clutch and a drive shaft extending from one end and a spring rewind assembly attached opposite the drive shaft The drive shaft supports a drive pulley including a number of concentric engagement areas having different diameters Adjustably disposed above the roller assembly, a resistance device includes an output shaft terminating in a mag pulley opposite the resistance device formed similarly to the drive pulley with a number of concentric engagement areas having different diameters that are aligned with the engagement areas on the drive pulley The concentric engagement areas allow a belt trained about the pulleys to be moved to various positions on both the drive pulley and mag pulley to increase or decrease the amount of resistance provided to the drive shaft by the clutch A separate adjustment mechanism is also connected directly to the clutch to vary the resistance provided by the clutch An elongate member is attached to the roller assembly and is pulled to simulate a swimming motion against the resistance provided by the resistance device and the spring rewind assembly When pulling ceases on the elongate member, the spring rewind assembly retracts the elongate member without interference from the resistance mechanism due to the roller clutchread more
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References
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Variable resistance exercise device
TL;DR: In this paper, a variable resistance exercise device was proposed to provide a variable resisting force in response to a user's applied force by varying the viscosity of a variable fluid which surrounded plates rotated by the user applied force.
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Multifunction excercise machine with ergometric input-responsive resistance
TL;DR: In this paper, a roller carriage with paired upper and lower rollers rides on an adjustable inclined monorail, and a tension cord connects the carriage to a rear stanchion.
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Exercise apparatus with electronically variable resistance
TL;DR: In this paper, a variable torque drive system is coupled to the suspended weight to selectively alter the amount of resistance experienced by the user during the exercise, and a reduced level of assistance may be provided so that increased negative resistance is experienced.
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Energy absorber for exercising machines
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Dry land swimming training apparatus
TL;DR: In this paper, a portable, adjustable apparatus for dry land swimming training is disclosed, which comprises a frame supporting a bench on which the torso of a user can be supported in generally horizontal position.