Roughing machine having rockable shoe assembly support

A machine for roughing the margin of an upper of a shoe assembly, said shoe assembly comprising a last having an insole located on its bottom and the upper mounted thereon and being secured to the bottom of the insole, the heel and forepart portions of the shoe assembly lying in intersecting planes, comprising:

• a shoe assembly support for supporting the shoe assembly bottom-up;
• a margin sensor engageable with the upper margin;
• a side sensor, located below the margin sensor, engageable with the side of the shoe assembly;
• a roughing tool located above the support, inwardly of the side sensor, and proximate to the margin sensor and engageable with the upper margin to rough the upper margin;
• means mounting both sensors and the roughing tool for unitary heightwise movement;
• means mounting both sensors and the roughing tool for unitary inward-outward movement in a particular direction;
• support moving means for so moving the support as to move succeeding upper margin portions past the margin sensor and as to move corresponding succeeding side portions of the shoe assembly past the side sensor to thereby move said margin portions past the roughing tool, said support moving means comprising means for so rotating the support 180 degrees about a vertical axis in a particular rotational direction as to rotate a first end of the upper margin past the roughing tool, means for thereafter so horizontally moving the support linearly as to move a side of the upper margin past the roughing tool, and means for thereafter so rotating the support 180 degrees about said vertical axis in said particular direction as to rotate the second end of the upper margin past the roughing tool;
• means enabling the margin sensor to move heightwise and follow the contour of said upper margin portions to thereby enable the roughing tool to move heightwise accordingly;
• and means enabling the side sensor to move inwardly-outwardly in said particular direction and follow the contour of said side portions to thereby enable the roughing tool to move inwardly-outwardly accordingly;
• the machine having the improvement comprising:
• means mounting the support for rocking movement between a first position and a second position about a horizontal axis that is transverse to the direction of said linear movement;
• means for initially retaining the support in said first position wherein the end of the shoe assembly bottom corresponding to said first end of the upper margin lies in a substantially horizontal plane;
• and triggering means actuable pursuant to said linear movement for rocking the support from its first position to its second position wherein the end of the shoe assembly bottom corresponding to said second end of the upper margin lies in a substantially horizontal plane;
• whereby a line extending from the area of engagement of the roughing tool with each portion of the ends of the upper margin along the surface of the engaged margin to the outer periphery of the margin portion and towards the area of engagement of the side sensor with the corresponding portion of the side of the shoe assembly will be substantially parallel to said particular direction.