ES439097A1 - Low friction means for sewing machine work clamp - Google Patents
Low friction means for sewing machine work clampInfo
- Publication number
- ES439097A1 ES439097A1 ES439097A ES439097A ES439097A1 ES 439097 A1 ES439097 A1 ES 439097A1 ES 439097 A ES439097 A ES 439097A ES 439097 A ES439097 A ES 439097A ES 439097 A1 ES439097 A1 ES 439097A1
- Authority
- ES
- Spain
- Prior art keywords
- work
- clamp
- clamps
- work clamp
- sewing machine
- 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
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
- D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
- D05B3/08—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes for buttonholes with eyelet ends
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2209/00—Use of special materials
- D05D2209/06—Use of special materials with low friction
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2209/00—Use of special materials
- D05D2209/10—Particular use of plastics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
A mechanism for minimizing frictional resistance to movement of sewing machine work clamps which permits a substantial increase in machine speed. Plastic lined sockets carrying steel ball bearings are elevated through the throat plate in timed relationship with the sewing needle rise and prior to feeding work clamp movement. The balls impinge on the bottom work clamp raising the bottom work clamp and upper work clamp out of engagement with the throat plate thereby also increasing clamping pressure on the work material between the clamps. An arched clamp frame which supports the work clamps absorbs the reaction force through similar balls in plastic lined sockets impinging on a hardened steel plate on the underside of the bracket arm. Motion of the entire clamp assembly takes place on ball bearings which are retracted during needle penetration to obviate flagging of the work material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US512795A US3896748A (en) | 1974-10-04 | 1974-10-04 | Low friction means for sewing machine work clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES439097A1 true ES439097A1 (en) | 1977-03-01 |
Family
ID=24040595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES439097A Expired ES439097A1 (en) | 1974-10-04 | 1975-07-03 | Low friction means for sewing machine work clamp |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3896748A (en) |
| JP (1) | JPS5857197B2 (en) |
| DE (1) | DE2518912A1 (en) |
| ES (1) | ES439097A1 (en) |
| FR (1) | FR2286904A1 (en) |
| GB (1) | GB1502911A (en) |
| IT (1) | IT1038298B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4441444A (en) * | 1982-02-26 | 1984-04-10 | Amf Inc. | Anti-friction apparatus for cloth feedplate |
| GB2134551A (en) * | 1983-01-18 | 1984-08-15 | Peter Arthur Taylor | Sewing Machines |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2822771A (en) * | 1955-09-30 | 1958-02-11 | Singer Mfg Co | Sewing machines |
| GB933885A (en) * | 1961-03-09 | 1963-08-14 | Tootal Broadhurst Lee Co Ltd | Improvements in or relating to sewing machine feed mechanisms |
| US3308776A (en) * | 1964-05-06 | 1967-03-14 | Singer Co | Sewing machines having bobbin thread replenishing means |
| DE2301936A1 (en) * | 1973-01-16 | 1974-07-18 | Guenter Toelle | SEWING MACHINE |
-
1974
- 1974-10-04 US US512795A patent/US3896748A/en not_active Expired - Lifetime
-
1975
- 1975-04-14 JP JP50045100A patent/JPS5857197B2/en not_active Expired
- 1975-04-28 DE DE19752518912 patent/DE2518912A1/en not_active Ceased
- 1975-05-09 GB GB19529/75A patent/GB1502911A/en not_active Expired
- 1975-05-20 IT IT23542/75A patent/IT1038298B/en active
- 1975-06-05 FR FR7517553A patent/FR2286904A1/en active Granted
- 1975-07-03 ES ES439097A patent/ES439097A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5857197B2 (en) | 1983-12-19 |
| JPS5147855A (en) | 1976-04-23 |
| DE2518912A1 (en) | 1976-04-15 |
| IT1038298B (en) | 1979-11-20 |
| GB1502911A (en) | 1978-03-08 |
| FR2286904B1 (en) | 1981-04-17 |
| US3896748A (en) | 1975-07-29 |
| FR2286904A1 (en) | 1976-04-30 |
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