Pallet unloading apparatus
AssigneeWillamette Industries, Inc.
InventorTimothy H. Milligan
Life of this patent
Estimating the term…
Abstract
An apparatus for unloading stacked sheet material from a supporting surface such as a pallet. A frame structure is provided including a station for positioning a loaded pallet. A ram reciprocates between an advanced and a retracted position at a height sufficient to pass over the pallet. Sweeping means is mounted on the ram for frictional sweeping engagement with the sheet material and pallet to remove cleanly all of the stack of sheet material.
Claims8
An apparatus for unloading stacked sheet material from a support comprising:
- (a) a frame structure including a station for positioning the support having the stack of sheet material thereon;
- (b) forward and rearward support-engaging stops on the frame structure for limiting movement of the support in forward and rearward directions,
- (c) a ram reciprocatably mounted on the frame structure at a height sufficient to pass over the support and operable to move between an advanced forward position and a retracted rearward position;
- (d) sweeping means mounted on the ram and extending therebelow for frictional sweeping engagement with the sheet material and the support for pushing the support to its forward stop and then pushing the stack of sheet material from the support to the advanced forward position of the ram and for pulling the support back to its rearward stop;
- and
- (e) drive means mounted on the frame structure for reciprocating the ram.
An apparatus for unloading stacked sheet material from a support comprising:
- (a) a frame structure including a station for positioning the support having the stack of sheet material thereon;
- (b) a ram reciprocatably mounted on the frame structure at a height sufficient to pass over the support and operable to move between an advanced position and a retracted position;
- (e) a piece of flexible belting forming sweeping means attached to the face of the ram and extending therebelow for frictional sweeping engagement with the sheet material and the support;
- and
- (d) drive means mounted on the frame structure for reciprocating the ram.
An apparatus for unloading stacked sheet material from a support comprising:
- (a) a frame structure including a station for positioning the support having the stack of sheet material thereon;
- (b) a ram reciprocatably mounted on the frame structure at a height sufficient to pass over the support and operable to move between an advanced position and a retracted position;
- (c) a bladder of rough material forming sweeping means mounted on the underside of the ram and extending therebelow for frictional sweeping engagement with the sheet material and the support;
- and
- (d) drive means mounted on the frame structure for reciprocating the ram.
Dependencies are inferred from the claim text.