A neck exercising apparatus (10) including an elongated support member (14) adapted to be suspended from a door (100) and operatively connected to a generally U-shaped leaf spring member (20) having a head rest member (30) movably attached to the outboard leg (22) of the spring member (20); wherein, the position of the head rest member (30) on the spring member (20) determines the amount of resistance provided by the spring member (20).
申请公布号
US5135445(A)
申请公布日期
1992.08.04
申请号
US19910692853
申请日期
1991.04.29
申请人
CHRISTENSEN, KIM D.;GREENAWALT, KENT S.;SPORER, C. F. SUNNY;MOORE, J. FORREST
发明人
CHRISTENSEN, KIM D.;GREENAWALT, KENT S.;SPORER, C. F. SUNNY;MOORE, J. FORREST