Method of an apparatus for lasting sides of shoes on lasts, comprising a side tack insertion device
AssigneeUSM Corporation
InventorsRudolf Bender, Hans-Gerd Dietrich, Gerhard Giebel
Life of this patent
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Abstract
Method of and apparatus for side lasting shoes on lasts comprising a side tack insertion device, wherein the latter is moved along the lasting margin in an operating path following the course of the shank region. A friction closure element (tensioning strap, roller, smoothing runner) is moved stepwise in a longitudinal direction of the shoe and with each step is pressed periodically against the upper in a strip-like region associated with each tack insertion, whereby the upper is stretched in a direction towards the lasting margin.
Claims2
A combined wiper and tack insertion device for a lasted shoe comprising
- a tack insertion device,
- an arm for carrying said tack insertion device,
- means for supporting said arm for horizontal movement along a selected path,
- clamp means for forcefully engaging and tensioning an upper to prepare the upper for tack insertion including
- a wiper assembly,
- a tensioning assembly, and
- housing means for supporting said wiper assembly and said tensioning assembly,
- said arm including means for supporting said housing means for rotation about a horizontal axis,
- means for forcefully biasing said housinig means from an elevated position towards a lowered position,
- said wiper assembly including
- wiper means displaceable with said housing means, and
- means for horizontally, forcefully displacing said wiper means from a retracted position to an advanced position,
- said tensioning assembly including a tension strap secured at one end to said wiper means and having an outer surface adapted to forcefully engage the lasted shoe,
- means for non-compressively engaging the inner surface of said tension strap,
- means for mounting said non-compressively engaging means on said housing means and
- means for pulling the other end of said tension strap.
Dependencies are inferred from the claim text.