US3760577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cleaning spinning chamber in ringless spinning machine
Assignee: Daiwa Boseki KK
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Filing: 1971-10-05
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Granted: 1973-09-25
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Expires: 1991-10-05
Abstract
Abstract A system for cleaning a spinning chamber of a ringless spinning machine having spinning units each provided with a body, a feed roller, a combing roller and a rotary spinning chamber and adapted to control the feed roller by the actuation of a yarn breakage sensing feeler. The body which holds the spinning chamber of the spinning unit is tilted to stop the rotation of the spinning chamber when a yarn breakage occurs. A suction is first applied to the spinning chamber to discharge the fibers remaining therein. Then compressed air is charged into the spinning chamber to loosen the residual material adhering to the inner wall surface of the spinning chamber, this loosened material being then discharged by the suction.
Inventors
- 👤 H Kihara
- 👤 T Urifu
- 👤 O Yuasa
- 👤 S Ejiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:39
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/22; D01H4/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
348 words
An apparatus for cleaning a rotary spinning chamber of a spinning unit of a ringless spinning machine, said spinning unit comprising a body, a feed roller and a combing roller operatively arranged in said body, a rotary spinning chamber, and a pulley operatively connected to said rotary spinning chamber for rotatively driving the same, said apparatus comprising: a casing mounted on said body and rotatably supporting said spinning chamber therein; a stationary frame; a spring-biased brake member mounted on said stationary machine frame for selective engagement with said driving pulley to brake said spinning chamber, said body being pivotably connected to said stationary machine frame at the bottom portion of said body, so that said body is tiltable between a first non-tilted position wherein the yarn is spun, a second tilted position wherein said driving pulley is brought into abutment with said brake member, and a third tilted positiOn wherein said body has been further tilted from said second tilted position; a locking member for normally locking said body in said first position; a suction tube extending through said body and having one end thereof opening into the interior of said spinning chamber for sucking air therefrom, the opposite end of said suction tube extending outside said body; a blow tube extending through said body and having one end thereof opening into the interior of said spinning chamber for blowing air thereinto, the opposite end of said blow tube extending outside said body; a suction source connected to said opposite end of said suction tube; a pressure source connected to said opposite end of said blow tube; and valve means arranged in said suction tube and said blow tube for establishing communication between said suction source and the interior of said spinning chamber through said suction tube responsive to the tilting movement of said body from said first position into said second position, and for establishing communication between said pressure source and the interior of said spinning chamber through said blow tube responsive to the tilting movement of said body from said second position into said third position.
Claim 2
Independent Claim
348 words
An apparatus for cleaning a rotary spinning chamber of a spinning unit of a ringless spinning machine, said spinning unit comprising a body, a feed roller and a combing roller operatively arranged in said body, a rotary spinning chamber, and a pulley operatively connected to said rotary spinning chamber for rotatively driving the same, said apparatus comprising: a casing mounted on said body and rotatably supporting said spinning chamber therein; a stationary frame; a spring-biased brake member mounted on said stationary machine frame for selective engagement with said driving pulley to brake said spinning chamber, said body being pivotably connected to said stationary machine frame at the bottom portion of said body, so that said body is tiltable between a first non-tilted position wherein the yarn is spun, a second tilted position wherein said driving pulley is brought into abutment with said brake member, and a third tilted positiOn wherein said body has been further tilted from said second tilted position; a locking member for normally locking said body in said first position; a suction tube extending through said body and having one end thereof opening into the interior of said spinning chamber for sucking air therefrom, the opposite end of said suction tube extending outside said body; a blow tube extending through said body and having one end thereof opening into the interior of said spinning chamber for blowing air thereinto, the opposite end of said blow tube extending outside said body; a suction source connected to said opposite end of said suction tube; a pressure source connected to said opposite end of said blow tube; and valve means arranged in said suction tube and said blow tube for establishing communication between said suction source and the interior of said spinning chamber through said suction tube responsive to the tilting movement of said body from said first position into said second position, and for establishing communication between said pressure source and the interior of said spinning chamber through said blow tube responsive to the tilting movement of said body from said second position into said third position.
Claim 3
Independent Claim
378 words
An apparatus for cleaning a rotary spinning chamber of a spinning unit of a ringless spinning machine, said spinning unit comprising a body, a feed roller and a combing roller operatively arranged in said body, a rotary spinning chamber, and a pulley operatively connected to said rotary spinning chamber for rotatively driving the same, said apparatus comprising: a casing mounted on said body and rotatably supporting said spinning chamber therein; a stationary frame; a brake member mounted on said stationary machine frame for selective engagement with said driving pulley to brake said spinning chamber, said body being pivotably connected to said stationary machine frame at the bottom portion of said body, so that said body is tiltable between a first non-tilted position wherein the yarn is spun, and a second tilted position wherein said driving pulley is brought into engagement with said brake member; a locking member for normally locking said body in said first position; a suction tube extending through said body and having one end thereof opening into the interior of said spinning chamber for sucking air therefrom, the opposite end of said suction tube extending outside said body; a blow tube extending through said body and having one end thereof opening into the interior of said spinning chamber for blowing air thereinto, the opposite end of said suction tube extending outside said body; a suction source connected to said opposite end of said suction tube; a pressure source connected to said opposite end of said blow tube; a switching valve means arranged in said suction tube for selectively establishing communication between said suction source and said interior of said spinning chamber through said suction tube responsive to the tilting movement of said body from said first position into said second position; and a two-stage flow control changeover valve means arranged in said blow tube for permitting a relatively small amount of air from said pressure source into the interior of said spinning chamber through said blow tube when said body is in said first position and for permitting a relatively large amount of air from said pressure source into the interior of said spinning chamber through said blow tube responsive to the tilting movement of said body from said first position into said second position.
Claim 4
Independent Claim
378 words
An apparatus for cleaning a rotary spinning chamber of a spinning unit of a ringless spinning machine, said spinning unit comprising a body, a feed roller and a combing roller operatively arranged in said body, a rotary spinning chamber, and a pulley operatively connected to said rotary spinning chamber for rotatively driving the same, said apparatus comprising: a casing mounted on said body and rotatably supporting said spinning chamber therein; a stationary frame; a brake member mounted on said stationary machine frame for selective engagement with said driving pulley to brake said spinning chamber, said body being pivotably connected to said stationary machine frame at the bottom portion of said body, so that said body is tiltable between a first non-tilted position wherein the yarn is spun, and a second tilted position wherein said driving pulley is brought into engagement with said brake member; a locking member for normally locking said body in said first position; a suction tube extending through said body and having one end thereof opening into the interior of said spinning chamber for sucking air therefrom, the opposite end of said suction tube extending outside said body; a blow tube extending through said body and having one end thereof opening into the interior of said spinning chamber for blowing air thereinto, the opposite end of said suction tube extending outside said body; a suction source connected to said opposite end of said suction tube; a pressure source connected to said opposite end of said blow tube; a switching valve means arranged in said suction tube for selectively establishing communication between said suction source and said interior of said spinning chamber through said suction tube responsive to the tilting movement of said body from said first position into said second position; and a two-stage flow control changeover valve means arranged in said blow tube for permitting a relatively small amount of air from said pressure source into the interior of said spinning chamber through said blow tube when said body is in said first position and for permitting a relatively large amount of air from said pressure source into the interior of said spinning chamber through said blow tube responsive to the tilting movement of said body from said first position into said second position.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |