GB1332570A - Sewing machines - Google Patents
Sewing machinesInfo
- Publication number
- GB1332570A GB1332570A GB4690071A GB4690071A GB1332570A GB 1332570 A GB1332570 A GB 1332570A GB 4690071 A GB4690071 A GB 4690071A GB 4690071 A GB4690071 A GB 4690071A GB 1332570 A GB1332570 A GB 1332570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tension
- release rod
- check spring
- bracket
- slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009958 sewing Methods 0.000 title 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
1332570 Thread tensioning device PFAFF INDUSTRIEMASCHINEN GmbH 8 Oct 1971' [3 Nov 1970] 46900/71 Heading D1G In a disc type thread tensioner the tension release rod 22 is caused to rotate as it moves axially so as to release both the coil spring 20 and the tension check spring 9. The release rod has a helical bearing surface 24 is contact with a stationary guide plate 27, and carries a bracket 29 the free end of which fits into a slot 31 in the sleeve 6 which surrounds the coiled part of the tension check spring. When the presser bar 34 is raised the release rod is pushed axially by an inclined surface 33 and is forced to rotate by the guide plate 27. The bracket 29 rotates the sleeve until it presses against the tension check spring 9. Projections 32 on each side of the slot 31 act as stops. A second weaker pair of tensioning discs may be supported on a plate 1 near the main pair (Fig. 4, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7040674 | 1970-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1332570A true GB1332570A (en) | 1973-10-03 |
Family
ID=6615455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4690071A Expired GB1332570A (en) | 1970-11-03 | 1971-10-08 | Sewing machines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3738298A (en) |
| JP (1) | JPS533875Y2 (en) |
| GB (1) | GB1332570A (en) |
| IT (1) | IT939908B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5613000B2 (en) * | 1972-12-26 | 1981-03-25 | ||
| JPS49128571A (en) * | 1973-04-13 | 1974-12-09 | ||
| JPS50128587A (en) * | 1974-03-29 | 1975-10-09 | ||
| GB1481366A (en) * | 1975-06-23 | 1977-07-27 | Western Stamping Corp | Toy sewing machine |
| JPS53146479A (en) * | 1977-05-26 | 1978-12-20 | Meiji Nat Kougiyou Kk | Device for firing discharge lamp |
| US4448139A (en) * | 1981-10-27 | 1984-05-15 | Usm Corporation | Automatic thread changing sewing machine |
| US4611547A (en) * | 1984-06-13 | 1986-09-16 | Janome Sewing Machine Co., Ltd. | Upper thread tension device of a sewing machine |
| JP5458748B2 (en) * | 2009-08-31 | 2014-04-02 | アイシン精機株式会社 | Sewing machine with needle thread tension adjustment device |
| CN207793568U (en) | 2016-11-21 | 2018-08-31 | 耐克创新有限合伙公司 | Be pleated sewing machine |
| IT202200002474A1 (en) * | 2022-02-10 | 2023-08-10 | Vi Be Mac Spa | Thread tensioning device for sewing machines and sewing machine comprising a thread tensioning device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE675102C (en) * | 1937-09-23 | 1939-04-29 | Phoenix Naehmaschinen A G Baer | Upper thread tensioning device for sewing machines |
| DE723852C (en) * | 1938-12-06 | 1942-08-12 | An Vittorio Necchi Soc | Tensioning device for the needle thread of sewing machines |
| US2701694A (en) * | 1952-03-20 | 1955-02-08 | White Sewing Machine Corp | Thread tension device for sewing machines |
| US2726053A (en) * | 1952-04-21 | 1955-12-06 | Vittorio Necchi Societa Per Az | Device for adjusting the tension of the upper thread in sewing machines |
| US3206138A (en) * | 1963-05-24 | 1965-09-14 | Loma B Beaty | Thread tensioning device with interchangeable parts |
-
1971
- 1971-10-01 IT IT70221/71A patent/IT939908B/en active
- 1971-10-08 GB GB4690071A patent/GB1332570A/en not_active Expired
- 1971-10-28 US US00193279A patent/US3738298A/en not_active Expired - Lifetime
- 1971-11-02 JP JP1971101641U patent/JPS533875Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3738298A (en) | 1973-06-12 |
| JPS533875Y2 (en) | 1978-01-31 |
| JPS47292U (en) | 1972-06-26 |
| IT939908B (en) | 1973-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |