Needle selection device for a circular knitting machine, particularly for ladies' stockings.
Nadelauswahlvorrichtung fur eine Rundstrickmaschine, insbesondere fur Damenstrumpfe.
Dispositif de selection d'aiguilles pour un metier a tricoter circulaire, notamment pour des bas de femmes.
- Assignee:
- SAVIO S.p.A., (263811), Via Udine 105, I-33170 Pordenone, (IT), (applicant designated states: DE;ES;FR;GB)
- Inventor:
- Furia, Edoardo, Via Volterrana 86 La Romola I-50026, San Casciano Val Di Pesa Florence, (IT)
- Legal Representative:
- De Carli, Erberto et al (44002), ING. BARZANO' & ZANARDO MILANO S.p.A. Via Borgonuovo, 10, I-20121 Milano, (IT)
Patent| Country Code/Number | Kind | Date |
|---|
| EP 379745 |
A1 |
August 01, 1990 (Basic) |
| EP 379745 |
B1 |
May 02, 1991 |
Application| Country Code/Number | Date |
|---|
| EP 89203029 |
November 29, 1989 |
Priority Application Number (Country Code, Number, Date): IT 899304 (890110)
Designated States: DE; ES; FR; GB
International Patent Class: D04B-015/78
Cited Patents (EP A): FR 2252431 A; DE 3537679 A; DE 2556814 A; DE 3242314 A
Abstract: EP 379745 A1
Electronically controlled electromagnetic needle selection in the direction of rotation of the needle cylinder in a circular knitting machine, including of the reciprocating motion type, particularly for ladies' stockings, is obtained by using:
- a cylinder (1) with needles (2) and elastic pusher jacks (5) housed in corresponding longitudinal tricks, each pusher jack (5) being provided with three butts, namely an upper butt (7) cooperating with a first ring cam (30) for its lowering into the selection position, an intermediate butt (8) which when in the selection position cooperates with a presser cam (35) in the centripetal direction, and a lower butt (9) provided in a position corresponding with a cam (40) for raising the pusher jack (5) to activate the corresponding needle;
- a rim structure (12) fixed to the needle cylinder (1) and provided lowerly, in line with eachpusher jack (5), with a radial horizontal groove (11) housing an elastic selector (10) having its foot (13) fitted onto the outer circumference of the rim structure and its head (17) underlying the foot (6) of the pusher jack (5) when this latter is in its rest position;
- a selection electromagnet (20) interposed between two permanent retaining magnets (22, 23) and fixed under each horizontal elastic selector (10), said electromagnet (20) cooperating with said selector (10) when this latter is urged against the electromagnet by the foot (6) of the pusher jack (5) under the action of the lowering cam (30), in order to either select or not select the corresponding lower butt (9) of the pusher jack (5) after its intermediate butt (8) haspassed along said presser cam (35).
Legal Status| Type | Pub Date | Kind | Description |
|---|
| Application: | 900801 | A1 | Published application (A1 with Search Report;A2 without Search Report) | | Examination: | 900808 | A1 | Date of filing of request for examination: 900607 | | Examination: | 901122 | A1 | Date of despatch of first examination report: 901004 | | Grant: | 910502 | B1 | Granted patent | | Oppn None: | 920422 | B1 | No opposition filed |
Language (Publication, Procedural, Application): English; English; English
Specification: EP 379745 B1 NEEDLE SELECTION DEVICE FOR A CIRCULAR KNITTING MACHINE, PARTICULARLY FOR LADIES' STOCKINGS This invention relates to an electromagnetic needle selection device for a circular knitting machine with reciprocating motion, particularly for ladies' stockings. 途中省略
Claims: EP 379745 B1 1. An electromagnetic needle selection device for a circular knitting machine, including of the reciprocating motion type, particularly for ladies' stockings, comprising for each needle an elastic pusher jack (5) and a horizontal elastic selector (10) housed in a radial groove (11)of a rim structure (12) fixed about the needle (2) cylinder (1), characterised in that said pusher jack (5) is provided with three butts (7, 8, 9), namely an upper butt (7) cooperating with a first ring cam (30) for its lowering into the selection position, an intermediate butt (8) which when in the selection position cooperates with a presser cam (35) in the centripetal direction, and a lower butt (9) provided in a position corresponding with aring cam (40) for raising the pusher jack (5) to activate the corresponding needle (2), said elastic selector (10) having its foot (13) of C-shape toenable it to fit into a corresponding vertical seat (14) provided in the outer circumference of said rim structure (12) and retained in the seat by aring spring (15), and its head (17) projecting into the corresponding trick (3) of the needle cylinder (1) in a position underlying the foot (6) of the pusher jack (5) when this latter is in its rest position; and comprisinga selection electromagnet (20) and at least one permanent retaining magnet(22, 23) which cooperates with said horizontal selector (10) when this latter is activated by said electromagnet (20), in order to either select or not select the corresponding lower butt (9) of the pusher jack (5) after itsintermediate butt (8) has passed along said presser cam (35). 以下省略
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