Welt application process for unit soles and wedge platforms |
|||||||
| 申请号 | US45890374 | 申请日 | 1974-04-08 | 公开(公告)号 | US3927433A | 公开(公告)日 | 1975-12-23 |
| 申请人 | BOSTON MACHINE WORKS CO; | 发明人 | DECOULOS JOHN; | ||||
| 摘要 | Continuous welting, in sequence, is wetted with cement which is dried to provide a bonding stratum, is metered out to provide slack increments each equal in length to the perimeter of a shoe component, is advanced together with the perimeter of the shoe component through the nip between a pair of pressure applying wheels, is heated at the nip to reactivate the bonding stratum which causes the welting to adhere to the perimeter of the shoe component, and is severed at incremental demarcations. The wheels are designed specifically to advance the marginal edge of the shoe component and the welt through the nip and to apply pressure across any cross-sectional portion in the nip notwithstanding differences in the peripheral thicknesses of the shoe component. | ||||||
| 权利要求 | 1. A process for applying welting to a variable thickness shoe component, said process comprising the steps of advancing from a supply spool a length of said welting, applying cement to a surface of said welting, drying said cement on said surface to provide a coating, metering predetermined increments of said welting, feeding said welting together with said shoe component between a drive wheel and an adaptor wheel defining a nip therebetween with said shoe component in contact with said adaptor wheel and said welt in contact with said drive wheel, heat activating portions of said coating as said welting advances in said nip, severing said welting at said nip, the diameter of said drive wheel being less than one-tenth the diameter of said adaptor wheel, and accomodating the distance between said adaptor wheel and said drive wheel to the varying combined thickness of said shoe component and said welt as they pass through said nip without jamming. |
||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈