Claims
- 1. A doubling and twisting bed for use in a twisting machine in which a plurality of substantially identically shaped packages are supplied on a corresponding plurality of substantially identically shaped conical take-up tubes and are vertically arranged to define upper packages and lower packages, wherein each of the substantially identically shaped conical take-up tubes defines a larger diameter side and a smaller diameter side, wherein each of the substantially identically shaped packages is formed substantially on the larger diameter side of a corresponding one of the substantially identically shaped take-up tubes and wherein the smaller diameter side of each of the substantially identically shaped take-up tubes defines a substantially yarn free projection having a substantially conical exterior surface, the doubling and twisting bed comprising:
- a first substantially tubular body configured to receive one of the substantially identically shaped take-up tubes of a lower package,
- a second substantially tubular body configured to fit onto the first substantially tubular body and to receive one of the substantially identically shaped take-up tubes of an upper package, the second substantially tubular body defining a lower portion having a substantially conical interior surface, and
- the lower portion of the second substantially tubular body defining a space for receiving the yarn free projection on the smaller diameter side of the take-up tube of the lower package,
- the substantially conical interior surface being configured to define a substantially uniform gap between the yarn free projection on the smaller diameter side of the take-up tube of the lower package and the second substantially tubular body throughout the space.
- 2. A doubling and twisting bed for use in a twisting machine in which packages are supplied on conical take-up tubes and are vertically arranged to define upper packages and lower packages, wherein each of the conical take-up tubes defines a larger diameter side and a smaller diameter side, wherein each package is formed substantially on the larger diameter side of the take-up tube and wherein the smaller diameter side of the take-up tube defines a substantially yarn free projection, the doubling and twisting bed comprising:
- a first substantially tubular body configured to receive a take-up tube of a lower package,
- a second substantially tubular body configured to fit onto the first substantially tubular body and to receive a take-up tube of an upper package, the second substantially tubular body defining a lower portion, and
- the lower portion of the second substantially tubular body defining a space for receiving the yarn free projection on the smaller diameter side of the take-up tube of the lower package,
- wherein the first substantially tubular body comprises a continuous flange portion, a substantially conical portion, a substantially straight portion and an inlet guide portion, and
- wherein the second substantially tubular body comprises a stationary tube, an elevating tube configured to fit loosely on the stationary tube, and a spring interposed between the stationary tube and the elevating tube, and
- wherein the stationary tube defines an internal, downwardly directed conical space.
- 3. The doubling and twisting bed of claim 2, comprising:
- a shock absorber,
- a receiving portion for the shock absorber formed below the stationary tube, and
- a second flange portion formed below the elevating tube.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3-176177 |
Jun 1991 |
JPX |
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3-240502 |
Aug 1991 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/032,379, filed on Mar. 18, 1993 and now abandoned, which is itself a division of application Ser. No. 07/900,912, filed on Jun. 18, 1992 now U.S. Pat. No. 5,305,962.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
1995533 |
Bochmann et al. |
Mar 1935 |
|
3783597 |
Greive et al. |
Jan 1974 |
|
4439979 |
Winkelmann |
Apr 1984 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
2827814 |
Jan 1980 |
DEX |
Divisions (1)
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Number |
Date |
Country |
Parent |
900912 |
Jun 1992 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
32379 |
Mar 1993 |
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