US3801038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck for a tube or sleeve and serving as a bobbin support
Assignee: Maschinenfabrik Rieter AG
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Filing: 1972-10-19
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Granted: 1974-04-02
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Expires: 1992-10-19
Abstract
Abstract A chuck or mandrel for a bobbin tube or sleeve serving as bobbin support embodying a thread catch ring and a thread severing ring defining therebetween a thread catching zone. The thread severing ring is provided at an end face with a substantially ring-shaped arrangement of spaced recesses and teeth formed between such recesses, these teeth each having an inner sharp cutting edge for engaging and separating or cutting a thread. The teeth are arranged in a direction facing away from the end face of the bobbin tube or sleeve. The thread catch ring is located at the region of the end face of the thread severing ring. This thread catch ring extends at least partially beneath the teeth of the thread severing ring when the tube is completely pushed onto the chuck. There are also provided thread clamping means.
Inventors
- 👤 O Wust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:16
CPC Classifications
B; B65; B65H; B65H65/00; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
142 words
A chuck device for a tube serving as a bobbin support, comprising a chuck sleeve, a thread catch ring and a thread servering ring defining therebetween a thread catch zone mounted on said chuck sleeve, said thread severing ring having an end face provided with a substantially ring-shaped arrangement of spaced teeth and intermediate recesses, each of said teeth having an inner sharp cutting edge for engaging and cutting a thread, said teeth being arranged in a direction which faces away from the end of the tube when mounted on the chuck sleeve, said thread catch ring being arranged at the region of said end face of the thread severing ring, said thread catch ring having a thread guide surface extending partially beneath the teeth when the tube is completely pushed onto the chuck sleeve, and thread clamp means for the thread.
Claim 2
Dependent Claim
142 words
A chuck device for a tube serving as a bobbin support, comprising a chuck sleeve, a thread catch ring and a thread servering ring defining therebetween a thread catch zone mounted on said chuck sleeve, said thread severing ring having an end face provided with a substantially ring-shaped arrangement of spaced teeth and intermediate recesses, each of said teeth having an inner sharp cutting edge for engaging and cutting a thread, said teeth being arranged in a direction which faces away from the end of the tube when mounted on the chuck sleeve, said thread catch ring being arranged at the region of said end face of the thread severing ring, said thread catch ring having a thread guide surface extending partially beneath the teeth when the tube is completely pushed onto the chuck sleeve, and thread clamp means for the thread.
Claim 3
Dependent Claim
25 words
The chuck device as defined in claim 1, wherein each of the teeth possess a conical outer surface inclined in the direction of the tube.
Claim 4
Dependent Claim
25 words
The chuck device as defined in claim 1, wherein each of the teeth possess a conical inner surface and said inner cutting edge is inclined.
Claim 5
Dependent Claim
21 words
The chuck device as defined in claim 3, wherein the conical inner surface tapers at an inclination away from the tube.
Claim 6
Dependent Claim
25 words
The chuck device as defined in claim 1, wherein the thread severing ring is mounted on the chuck sleeve so as to be movable therealong.
Claim 7
Dependent Claim
22 words
The chuck device as defined in claim 1, further including means for fixedly mounting the thread catch ring on the chuck sleeve.
Claim 8
Dependent Claim
29 words
The chuck device as defined in claim 1, wherein the thread catch ring possesses a conical thread guide surface defining said thread guide surface extending partially beneath the teeth.
Claim 9
Dependent Claim
19 words
The chuck device as defined in claim 1, wherein the thread catch ring possesses a cylindrical thread guide surface.
Claim 10
Dependent Claim
49 words
The chuck device as defined in claim 1, wherein the thread catch ring possesses a cylindrical thread guide surface and a conical thread guide surface extending in the direction towards the tube, at least one of said guide surfaces defining said thread guide surface extending partially beneath the teeth.
Claim 11
Dependent Claim
29 words
The chuck device as defined in claim 1, wherein the thread clamping means are defined by a gap formed between the thread catch ring and the thread severing ring.
Claim 12
Dependent Claim
17 words
The chuck deviCe as defined in claim 10, wherein the gap is limited by essentially parallel walls.
Claim 13
Dependent Claim
17 words
The chuck device as defined in claim 10, wherein the gap is limited by conical boundary walls.
Claim 14
Dependent Claim
21 words
The chuck device as defined in claim 1, wherein the thread severing ring includes means for guiding and receiving the tube.
Claim 15
Dependent Claim
31 words
The chuck device as defined in claim 13, further including a stop, said thread severing ring being displaceably mounted on the chuck sleeve between the thread catch ring and the stop.
Claim 16
Dependent Claim
37 words
The chuck device as defined in claim 13, further including means for connecting the thread severing ring with the tube so that the thread severing ring can be withdrawn together with the tube from the chuck sleeve.
References Cited (Backward Citations)
GB1097204A
Cited
DE2048416A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |