US3693377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat bed knitting machine
Assignee: H Stoll GmbH and Co KG
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Filing: 1971-01-22
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Granted: 1972-09-26
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Expires: 1991-01-22
Abstract
Abstract A flat bed knitting machine including jacks mounted in needle tricks in the needle beds and arranged to control movement of the needles. Selector jacks operate the needle-actuating jacks in accordance with the pattern and patterning butts on successive selector jacks are staggered in different planes. Each patterning lock has, for each plane of the patterning butts, adjustable advancing lock parts for selecting jack butts to be acted on and hence to operate the respective needle-actuating jacks. Each advancing lock part is controlled electrically, independently of the other advancing lock part in accordance with the pattern. The advancing lock parts, viewed in the direction of travel of the carriage, are located in advance of a characteristic operating position of the needles. Further lock parts return the selector jacks to the original positions following each characteristic operating position.
Inventors
- 👤 Wilhelm Hadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:37
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/68; D04B15/78; D04B15/70
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
232 words
In a flat bed knitting machine of the type which includes jacks mounted in needle tricks in the needle beds and arranged to control the movement of the needles, the said needle-actuating jacks being operated by selector jacks controlled by patterning locks of a machine carriage in accordance with the pattern as the carriage moves relative to the beds, and in which patterning butts on successive selector jacks in the needles beds are disposed in different planes in a staggered formation; the improvement wherein each patterning lock of the machine has, for each plane of patterning butts first means for acting on the selector jacks in that plane to operate their respective needleactuating jacks, adjustable advancing lock parts for selectively causing selector jack butts to be operated by said first means, control means for electrically controlling the operation of each advancing lock part independently of one another in accordance with the pattern, said adjustable advancing lock parts, viewed in the direction of travel at any time of the carriage, being arranged in advance of a characteristic operating position of the needles such that, in their operative condition and in conjunction with longitudinal displacement of the selector jacks concerned, they bring about an interruption of the operation of the associated needles and including returning means for returning said selector jacks to their original positions after their respective neeDles pass each said characteristic position.
Claim 2
Dependent Claim
232 words
In a flat bed knitting machine of the type which includes jacks mounted in needle tricks in the needle beds and arranged to control the movement of the needles, the said needle-actuating jacks being operated by selector jacks controlled by patterning locks of a machine carriage in accordance with the pattern as the carriage moves relative to the beds, and in which patterning butts on successive selector jacks in the needles beds are disposed in different planes in a staggered formation; the improvement wherein each patterning lock of the machine has, for each plane of patterning butts first means for acting on the selector jacks in that plane to operate their respective needleactuating jacks, adjustable advancing lock parts for selectively causing selector jack butts to be operated by said first means, control means for electrically controlling the operation of each advancing lock part independently of one another in accordance with the pattern, said adjustable advancing lock parts, viewed in the direction of travel at any time of the carriage, being arranged in advance of a characteristic operating position of the needles such that, in their operative condition and in conjunction with longitudinal displacement of the selector jacks concerned, they bring about an interruption of the operation of the associated needles and including returning means for returning said selector jacks to their original positions after their respective neeDles pass each said characteristic position.
Claim 3
Dependent Claim
131 words
A flat bed knitting machine according to claim 1, wherein the said advancing lock parts are displaceably mounted in the patterning locks of the machine carriage and are provided with guide surfaces held against fixed cam tracks which extend in the longitudinal direction of the needle beds, between the said planes of patterning butts, such that after each selection of selector jacks, the advancing lock parts, selectable in accordance with the pattern, are positively lifted by the fixed cam tracks clear of the patterning butts and into the range of action of said control means which comprises electrical retaining elements which are so selectively influenced as either to hold advancing lock parts in their lifted positions or to permit such lock parts to fall again for action upon predetermined patterning butts.
Claim 4
Dependent Claim
38 words
A flat bed knitting machine according to claim 2, wherein each cam track comprises initially separate parts which function to retain jacks in the needle beds and are readily removable from the bed to permit of changing jacks.
Claim 5
Dependent Claim
102 words
A flat bed knitting machine according to claim 2, wherein a holding magnet, the energized condition of which is controlled in accordance with the pattern, is associated with each advancing lock part as a retaining element, and the advancing lock parts pass along the cam tracks during movement out of the range of the patterning butts and, in each instance, into the range of action of the holding magnets, the advancing lock parts and the associated holding magnets being arranged in the carriage of the machine and having no movement relatively to one another in the direction of travel of the carriage.
Claim 6
Dependent Claim
21 words
A flat bed knitting machine according to claim 2, wherein the advancing lock parts are spring biassed towards the cam tracks.
Claim 7
Dependent Claim
53 words
A flat bed knitting machine according to claim 2, wherein each of the cam tracks is defined by a series of identical cam elements which are juxtaposed in a row, these cam elements additionally forming abutments for the patterning butts of the selector jacks for limiting the longitudinal displacement of the said jacks.
Claim 8
Dependent Claim
35 words
A flat bed knitting machine according to claim 6, wherein the cam elements are detachably secured in the needle bed by spring urged engagement of lugs on the elements in recesses in the needle bed.
Claim 9
Dependent Claim
76 words
A flat bed knitting machine according to claim 1, wherein the selector jacks act on needle-actuating jacks which are pivotally coupled to the needles, or to other jacks which are in turn coupled to the needles such that the operating butts of the said needle-actuating jacks are moved out of the range of action of the locks on the machine carriage, by virtue of resilient bending of the jacks, when the advancing lock parts become effective.
Claim 10
Dependent Claim
36 words
A flat bed knitting machine according to claim 8, wherein the pattern locks of the machine carriage include presser lock parts over which run the patterning butts of those selector jacks operated by advancing lock parts.
Claim 11
Dependent Claim
54 words
A flat bed knitting machine according to claim 8, wherein each selector jack is pivotally connected to a slider element having a bevel shaped end which is adapted to cooperate with a stationary counter bevel surface on a bar extending in the longitudinal direction of the needle beds transversely to the needle tricks therein.
Claim 12
Dependent Claim
78 words
A flat bed needle bed according to claim 1, wherein the said advancing lock parts are displaceably mounted in patterning locks of the machine carriage, between the said planes of patterning butts, presser lock parts fixed on the carriage between said advancing lock parts and extending in the longitudinal direction of said carriage, such that when an advancing lock part is in the operative position, it moves a patterning butt onto a presser lock part located adjacent thereto.
Claim 13
Dependent Claim
35 words
A flat bed needle bed according to claim 11, wherein said returning means includes restoring lock parts fixed on the carriage between the planes and arranged to restore selected patterning butts to their original position.
Claim 14
Dependent Claim
19 words
A flat bed needle bed according to claim 11, including a separate electromagnet for operating each advancing lock part.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |