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Toe-lasting machine

阅读:288发布:2023-08-31

专利汇可以提供Toe-lasting machine专利检索,专利查询,专利分析的服务。并且A toe-lasting machine having wipers or tuck-in devices for an upper leather of a shoe in a joint area of a last, wherein a large part of the adjusting operations of the tuck-in devices are automatic. The toe-lasting machine includes a machine frame, a first carriage with a heel support, a second carriage with a wiper head and wipers, and a pair of support tuck-in devices. The tuck-in devices are mounted on the second carriage. An adjustable linkage system is supported on the first carriage and on the machine frame. The linkage system is set to serve as a limiting stop in co-operation with a detent associated with the second carriage which supports the tuck-in devices.,下面是Toe-lasting machine专利的具体信息内容。

1. A toe-lasting machine including a machine frame, a first carriage with a heel support, a second carriage with a wiper head and wipers, and a pair of separate tuck-in means for a joint area of an upper leather of a shoe characterized in that said second carriage on which is mounted said wiper head and said wipers also carries said tuck-in means, a length of a last is sensed from said heel support with aid of adjustable linkage means including a lever carrying a roller, said linkage means being supported on said firsT carriage with said heel support and on said machine frame, said roller being set to serve as a limiting stop in co-operation with a detent rigidly associated with said second carriage which supports said tuck-in means.
2. A toe-lasting machine according to claim 1, wherein said second carriage is propelled by said wiper head and is supported thereagainst via a spring.
3. A toe-lasting machine according to claim 2, wherein said spring together with its mount are adjustable along said second carriage.
4. A toe-lasting machine according to claim 1, wherein a pin supports said lever which carries said roller, said pin being adjustably accommodated in a slotted aperture in said machine frame, a support being slidably accommodated in a slotted aperture in said lever, a stop-bar being slidably accommodated in said support, said stop-bar carrying a collar adjustable therealong.
5. A toe-lasting machine according to claim 4, wherein said second carriage is propelled by said wiper head and is supported thereagainst via a spring.
6. A toe-lasting machine according to claim 5, wherein said spring together with its mount are adjustable along said second carriage.
7. A toe-lasting machine according to claim 1, wherein a twin-cylinder arrangement includes a first piston assembly carrying a pressure-plate for urging the upper leather against the last in the joint area and a second piston assembly carrying said tuck-in means within the joint area, and a bell-crank lever carrying said twin-cylinder assembly so that the latter is perpendicularly pivotable.
8. A toe-lasting machine according to claim 7, wherein a connecting rod of said second piston assembly carries a cross-piece with a guide-fork which prevents its torsional movement by bracing it against a connecting rod of said first piston assembly, said first piston assembly rod being provided with a cross-piece which carries a guide-bar securing it against a tortional movement by bracing it against a housing portion of said twin-cylinder arrangement.
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