Thickness adjustment and stabilizer bar system for a case erector
First Claim
1. A case forming machine for erecting cases from knock down case form to an open form and move an opened case downward to a bottom forming station comprising a fixed jaw and a moveable jaw mounted for movement on a pivotal axis between a pick-up position wherein said fixed and moveable jaws are substantially parallel and an open squaring position wherein said fixed and moveable jaws are substantially perpendicular, a plurality of radially spaced, concentric stabilizer bars fixed adjacent to one end to said fixed jaw and arranged to form concentric segments of circles centered on said pivotal axis, passages through said moveable jaw positioned to permit said bars to pass through said moveable jaw as said moveable jaw is moved between said pick-up and open positions, said bars having their bottom edges in a radial plane relative to said pivotal axis.
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Accused Products
Abstract
A case forming machine for erecting cases from knock down case form to an open form and move an opened case downward to a bottom forming station using a fixed and a moveable jaw system is improved by providing a plurality of radially spaced, concentric stabilizer bars fixed to the fixed jaw and arranged to form concentric segments of circles centered on the pivotal axis of the moveable jaw and having their bottom edges in a radial plane relative to the pivotal axis. Also provided is a micrometer type adjustment mechanism that is used for adjusting the gap between the fixed and moveable jaws when the jaws are in the parallel pick-up position.
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Citations
12 Claims
- 1. A case forming machine for erecting cases from knock down case form to an open form and move an opened case downward to a bottom forming station comprising a fixed jaw and a moveable jaw mounted for movement on a pivotal axis between a pick-up position wherein said fixed and moveable jaws are substantially parallel and an open squaring position wherein said fixed and moveable jaws are substantially perpendicular, a plurality of radially spaced, concentric stabilizer bars fixed adjacent to one end to said fixed jaw and arranged to form concentric segments of circles centered on said pivotal axis, passages through said moveable jaw positioned to permit said bars to pass through said moveable jaw as said moveable jaw is moved between said pick-up and open positions, said bars having their bottom edges in a radial plane relative to said pivotal axis.
- 9. A case forming machine for erecting cases from knock down case form to an open form and move an opened case downward to a bottom forming station comprising a fixed jaw and a moveable jaw mounted for movement on a pivotal axis between a pick-up position wherein said fixed and moveable jaws are substantially parallel and an open squaring position wherein said fixed and moveable jaws are substantially perpendicular, the improvement comprising an adjustment mechanism having a mounting portion and an adjustment portion, said mounting portion mounted for pivotal movement on said pivotal axis and said adjustment portion being moveable relative to said mounting portion in a direction substantially parallel to said fixed jaw when said moveable jaw is in said open squaring position and means to move said adjusting portion relative to said mounting portion thereby adjusting the gap between said fixed and moveable jaws when said jaws are in said parallel pick-up position.
Specification