Obstacle clearing device for wheels
OwnerJohn J. Navar, Thomas R. Navarinventors
Life of this patent
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Abstract
An obstacle moving device for a caster wheel is made of an electrically insulating material and is of two identical halves. The device is assembled without moving, stabilizing or disassembling the caster wheel by placing the halves on opposite sides of the caster wheel and then securing them together. A pair of roller assemblies inside the device abut the caster wheel so that rolling motion of the caster wheel pushes the device across the floor. Any obstacle encountered by the device is pushed along the path of movement of the wheel.
Claims15
In combination, a wheel having a rolling surface, a shaft rotatably supporting the wheel on a device to be rollably supported on a floor surface at least partially by the wheel, and obstacle clearing means for moving along the floor in advance of the wheel during rolling movement thereof and pushing objects away from the rolling path of the wheel, the obstacle clearing means comprising
- an obstacle clearing member supported on the floor and having a recess receiving the wheel therein, and
- means in the recess for abutting the rolling surface of the wheel and converting rolling movement of the wheel into sliding movement of the obstacle clearing member.
In combination, a wheel having a rolling surface, a shaft supporting the wheel for rotation about an axis on a device to be rollably supported on a floor surface at least partially by the wheel, and obstacle clearing means for moving along the floor in advance of the wheel during rolling movement thereof and pushing objects away from the rolling path of the wheel, the obstacle clearing means comprising
- an obstacle clearing member supported on the floor and being unattached and unsupported by the wheel and comprising first and second generally C-shaped sections providing a recess having the wheel therein, the first and second sections having sides transverse to the axis on opposite sides of the wheel and ends transverse to the sides and means releasably connecting the sections together.
Dependencies are inferred from the claim text.