Sit-up exercising device

Claim 1

An exercising device for use in conjunction with a door, comprising a roller having a resilient surface and a length at least equal to the width of two human feet; a frame having side walls and a rear wall presenting a rearward facing door engaging surface, said frame having a floor engaging footing extending in a horizontal plane beneath the roller; a shaft supporting the roller between the side walls and having coaxial extensions passing through said side wall to form elongated generally cylindrical hand grips extending beyond each of the side walls by a distance at least equal to the width of a human hand, the frame having a flange extending rearwardly of the rear wall in the same horizontal plane as said footing and engageable with the bottom of a door, and a further flange upstanding from said rearwardly extending flange and having a forward facing vertical door engaging surface, the frame being so configured that when the rear wall and the flanges are engaged with the faces and bottom of a door and the floor engaging footing is engaged with a floor beneath the door, said roller and said hand grips are supported for rotation on a common axis parallel to and adjacent the bottom of the door and the floor therebeneath in a position such as to allow unobstructed access to said roller and said hand grips respectively by the insteps and palms of a user with said rear wall providing a rest for the soles of a user's feet when the user's insteps are engaged beneath the roller.