초록 ▼

A hand grip member for insertion in the end of a tubular core for flexible rolled material such as plastic stretch film includes opposed handle portions projecting from one side of a support web which includes cylindrical bearing shoe segments projecting from the other side of the support web. The h

A hand grip member for insertion in the end of a tubular core for flexible rolled material such as plastic stretch film includes opposed handle portions projecting from one side of a support web which includes cylindrical bearing shoe segments projecting from the other side of the support web. The handle portions are spaced apart and may be squeezed to move toward each other thereby deflecting the web to cause the bearing shoes to expand radially into gripping engagement with the inner wall of the roll core to selectively control the drag on the roll as the material is unrolled in the stretch wrapping process. The hand grip members are preferably used in pairs and are preferably molded in one piece of a suitable elastic material such as nylon.

대표청구항 ▼

Apparatus for controlled manual unrolling of a length of flexible material wound on a tubular core defining an open ended cylindrical bore, said apparatus comprising: a pair of spaced apart, elongated hand grip means disposed in generally parallel relationship to a longitudinal axis, and sized and s

Apparatus for controlled manual unrolling of a length of flexible material wound on a tubular core defining an open ended cylindrical bore, said apparatus comprising: a pair of spaced apart, elongated hand grip means disposed in generally parallel relationship to a longitudinal axis, and sized and spaced to be grasped by a single operator\s hand and moved together; a pair of spaced apart brake shoe means sized to be received in the open ended cylindrical bore and to exert a variable sliding braking force on the interior surface of the cylindrical bore when forced apart and spaced from the hand grip means; and mechanical means interconnecting the hand grip means and the brake shoe means for forcing the brake shoe means apart to exert a variable sliding braking force on the core in response to a manually applied force on the hand grip means whereby an operator can both hold the core and roll of material thereon and control the tension of the flexible material as it is unwound from the core.