Leg press machine
申请公布号:US6220993(B1)
申请号:US19990365777
申请日期:1999.08.03
申请公布日期:2001.04.24
发明人:SENCIL PHILIP
分类号:A63B21/06;A63B23/04;(IPC1-7):A63B21/06
主分类号:A63B21/06
摘要:A leg press machine includes a movement arm including a footboard and a pair of links pivotally mounting the footboard to a frame for movement by an exerciser's feet. A resistance arm is mounted to the fame and connected by a link to one of said pair of links. One or more free weight plates are mounted to the resistance arm which provides a predetermined resistance to the movement arm. The frame has a rack for mounting weight plates at a height at the level of the waist-chest area of the exerciser to facilitate movement of the weight plates between the rack and resistance arm. A prop is provided on the frame for holding the weight arm in the raised position to facilitate entry to and exit from the machine.
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WATER-STORING TRAY FOR PLANT GROWING MAT
HELICOPTER ACTIVE NOISE CONTROL SYSTEM
ELCTRIC BYCICLE HAVING LOAD INDUCING VARIABLE VENT DRIVING DEVICE
METHOD OF ENCODING/DECODING A DIGITAL GRAY SHAPE/COLOR INFORMATION
MOBILE REGION AND COMMUNICATION REGION SETTING METHOD FOR AN ELECTRONIC TOLL COLLECTING SYSTEM