# US 4,642,829 A · Shoe upper liner extender mechanism

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- Number: US 4,642,829 A
- Document ID: US4642829A
- Status: Granted
- Kind: A
- Application number: 06/656,136
- Filed: 1984-09-28
- Granted: 1987-02-17
- Earliest claimed: 1984-09-28
- Assignees: USM Corporation
- Inventors: Donald B. McIlvin
- Web page: https://patentgrep.com/patent/US4642829A

## CPC

- A43D 25/185: {by imprinter plates}
- A43D 11/00: Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings
- A43D: MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR

## Abstract

A machine for applying resinous stiffening material to the heel pocket portion of a shoe upper, and for holding a liner portion thereattached, away from the upper heel and sides by a liner extender as the resinous material is being applied, and then wiping the liner against the resinous upper while liner extender is being withdrawn from between the layers of material. The liner extender is comprised of a loop member articulately upwardly and outwardly from a nozzle as it advances to the heel pocket articulately downwardly and backwardly toward the nozzle during completion of the application of resinous material between the flexible layers of the shoe upper.

## Claims

### Claim 1

A machine for stiffening an area between the heel pocket of a shoe upper and the lining which is secured to the shoe upper at the top edge of the heel pocket by applying a hot resinous material to the heel pocket comprising
nozzle means for discharging hot resinous material, said nozzle means including a nozzle base,
means for supporting said nozzle base for pivotal displacement about a first axis between an advanced position and a retracted position.
elongated wiper means including a wiper blade,
said nozzle base including means for supporting said wiper means at a location remote from said wiper blade for pivotal displacement about a second axis parallel to said first axis from a remote position to a fully wiped position when said nozzle base is displaced from said advanced position to said retracted position,
liner extending means including
a liner engaging member,
an elongated arm having first and second ends,
means for securing said liner engaging member to the first end of said elongated arm, and
means for supporting said liner extending means between said nozzle means and said wiper means including
a first link member having first and second ends, said first link member pivotally secured at said first end to the second end of said elongated arm means and pivotally secured at the second end to said wiper means,
a second link member having first and second ends, said second link member pivotally secured at said first end, with said first link, to the second end of said elongated arm and pivotally secured at the second end to said nozzle base,
said elongated arm having a pin extending therefrom, and
a control arm having a slot for receiving said pin.

### Claim 2 (depends on 1)

A machine for stiffening an area between the heel pocket of a shoe upper and the lining according to claim 1, wherein said liner engaging member comprises a spring steel hoop having a broad loop at its distal end and wherein the ends of said hoop comprises said pin means.

### Claim 3 (depends on 1)

A machine for stiffening an area between the heel pocket of a shoe upper and the lining according to claim 1, wherein said control arm is pivotally connected with the second end of said second link member to said nozzle base means.