Textiles: weaving – Special-type looms – Pushed shed pocket
Reexamination Certificate
1999-12-06
2001-04-10
Falik, Andy (Department: 3741)
Textiles: weaving
Special-type looms
Pushed shed pocket
C139S194000
Reexamination Certificate
active
06213161
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to an arrangement for the holding of a weft thread for a series shed weaving machine and to a series shed weaving machine with an arrangement of this kind.
An arrangement of this kind is known from WO 96/38613. This arrangement contains two holder elements which are arranged stationarily and overlap at least section-wise, at least two ring-shaped forwarding elements which are arranged parallel to one another and at a spacing on both sides of the holder arrangement and which are movably arranged relative to the latter in order to push a weft thread which extends transversely to the direction of movement of the forwarding elements and transversely to the holder elements between the holder elements, and a stretching nozzle in order to tension the weft thread in the insertion direction.
The rigid association of the holder elements and the forwarding elements relative to one another, i.e. with respect to one another, proves to be disadvantageous because a holding force is present thereby which can not be changed for the use of different weft yarns without greater cost and complexity. In addition the setting is critical.
SUMMARY OF THE INVENTION
An arrangement for the holding of a weft thread for a series shed weaving machine has a holder apparatus (
11
) for the weft thread (
4
). Two forwarding elements (
12
,
13
) are arranged at both sides of the holder apparatus and are movable relative to the holder apparatus in order to introduce the weft thread. The weft thread (
4
) extends transversely to the holder apparatus and transversely to the holder apparatus and transversely to the direction of movement of the forwarding elements, into the holder apparatus (
11
) and furthermore, an apparatus (
14
) in order to catch and to tension the weft thread. The holder apparatus comprises a thread clamp (
15
) with a stationary clamping part (
17
) and a movable clamping part (
18
) which is under spring action and which forms a clamping gap (
27
). The weft thread is held in a stretch state by the forwarding elements (
12
,
13
) and the apparatus (
14
) and is displaceable transversely through the clamping gap. The required clamping force can be set in an advantageous manner through the thread clamp.
The object of the invention is to improve an arrangement for the holding of a weft thread and to simplify the setting of the clamp.
This object is satisfied in accordance with the invention by the characterising features of claim
1
.
The advantage that can be achieved with the invention is to be seen in the simplified settability of the clamping force.
REFERENCES:
patent: 3792723 (1974-02-01), Titov
patent: 4088159 (1978-05-01), Komarov
patent: 4587996 (1986-05-01), Steiner
patent: 2312709 (1973-09-01), None
patent: 0 148 292 A1 (1985-07-01), None
patent: 0 582 763 A1 (1994-02-01), None
patent: WO 96/38613 (1996-12-01), None
Falik Andy
Sulzer Ruti AG
Townsend and Townsend / and Crew LLP
LandOfFree
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