US4254614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supporting a spindle of an open-end spinning frame
Assignee: Toyota Industries Corp
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Filing: 1979-10-09
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Granted: 1981-03-10
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Expires: 1999-10-09
Abstract
Abstract A device for preventing a spindle of an open-end spinning frame, which device comprises a rotatable spindle having a rotor attached at one end thereof and a shaft, formed at the other end thereof, to be pressed by a running belt, a bearing casing for rotatably supporting the spindle, a holder for holding the bearing casing via a pair of resiliently yieldable members. At least one of the resiliently yieldable members are detachably mounted on a sleeve detachably secured to the bearing casing. A labyrinth seal is formed between the rotor and the sleeve.
Inventors
- 👤 Noriaki Miyamoto
- 👤 Masao Shiraki
- 👤 Kinpei Mitsuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:10
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/06; F16C27/063; D; D01; D01H; D01H4/00; D01H4/04; D01H4/08; D01H4/12; F16C2340/00; F16C2340/18
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A device for supporting a spindle in an open-end spinning frame, which device comprises a rotatable spindle, a bearing casing for rotatably supporting said spindle, a holder for holding said bearing casing therein, and at least two annular elastic members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, wherein at least one of said members is detachably coupled to said bearing casing so as to be readily removable therefrom.
Claim 2
Independent Claim
88 words
A device for supporting a spindle in an open-end spinning frame, which device comprises a rotatable spindle, a bearing casing for rotatably supporting said spindle, a holder for holding said bearing casing therein, and at least two annular elastic members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, wherein at least one of said members is detachably coupled to said bearing casing so as to be readily removable therefrom.
Claim 3
Dependent Claim
37 words
A device according to claim 1, which further comprises a sleeve attached onto said bearing casing and having a peripheral groove, and said detachable member is a resiliently yieldable endless ring and is engaged within said groove.
Claim 4
Dependent Claim
15 words
A device according to claim 2, wherein said sleeve has a plurality of peripheral grooves.
Claim 5
Dependent Claim
20 words
A device according to claim 2, further comprising set screw means for detachably securing said sleeve to said bearing casing.
Claim 6
Independent Claim
135 words
A device for supporting a spindle in an open-end spinning frame, which device comprises: a rotatable spindle; a bearing casing for rotatably supporting said spindle; a holder for holding said bearing casing therein; a sleeve attached onto said bearing casing and having a peripheral groove: at least two members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, at least one of said members being detachably mounted on said bearing casing and comprising a resiliently yieldable endless ring engaged within said groove; and a rotor fixed to one end of said spindle, said sleeve extending toward said rotor to form a narrow clearance between said rotor and said sleeve, said narrow clearance serving as a labyrinth seal.
Claim 7
Independent Claim
135 words
A device for supporting a spindle in an open-end spinning frame, which device comprises: a rotatable spindle; a bearing casing for rotatably supporting said spindle; a holder for holding said bearing casing therein; a sleeve attached onto said bearing casing and having a peripheral groove: at least two members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, at least one of said members being detachably mounted on said bearing casing and comprising a resiliently yieldable endless ring engaged within said groove; and a rotor fixed to one end of said spindle, said sleeve extending toward said rotor to form a narrow clearance between said rotor and said sleeve, said narrow clearance serving as a labyrinth seal.
Claim 8
Independent Claim
91 words
A device for supporting a spindle in an open-end spinning frame, which device comprises a rotatable spindle, a bearing casing for rotatably supporting said spindle, a holder for holding said bearing casing therein, at least two members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, wherein at least one of said members is detachably mounted on said bearing casing, and a metallic member for electrically connecting said bearing casing to said holder.
Claim 9
Independent Claim
91 words
A device for supporting a spindle in an open-end spinning frame, which device comprises a rotatable spindle, a bearing casing for rotatably supporting said spindle, a holder for holding said bearing casing therein, at least two members, spaced from each other along an axial direction of said spindle and disposed between said bearing casing and said holder, for preventing the vibration of said spindle, wherein at least one of said members is detachably mounted on said bearing casing, and a metallic member for electrically connecting said bearing casing to said holder.
Claim 10
Dependent Claim
37 words
A device according to claim 5, wherein said sleeve has a hole formed therein so as to communicate a space surrounding said rotor with the outside of said sleeve, whereby the vacuum with said space is lowered.
Claim 11
Dependent Claim
37 words
A device according to claim 5, wherein the surfaces of said sleeve and said rotor, which surfaces face each other to form a clearance therebetween, are different from each other whereby the labyrinth seal effect is increased.
Claim 12
Dependent Claim
29 words
A device according to claim 1, wherein another member is made of a resiliently yieldable material of an annular ring shape and is fixedly mounted on said bearing casing.
Claim 13
Dependent Claim
28 words
A device according to claim 9, wherein said annular ring shaped member has a hole formed therein for passing therethrough an air flow for cooling said bearing casing.
Claim 14
Dependent Claim
26 words
A device according to claim 3, wherein said resiliently yieldable endless ring is selectively engaged with one of said plurality of peripheral grooves of said sleeve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |