AT232933B

AT232933B - Stylus apparatus for moving the heald frames according to the pattern

Info

Publication number: AT232933B
Application number: AT732862A
Authority: AT
Original assignee: Rueti Ag Maschf
Priority date: 1962-09-14
Filing date: 1962-09-14
Publication date: 1964-04-10

Description

  

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  Tastnadelapparat zum mustergemässen Bewegen der   Webschäfte   
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 steuernde Schaft wird in seine untere Stellung gebracht. Falls er sich bereits dort befindet, so bleibt er in derselben. 



   PATENTANSPRÜCHE : 
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 durchAbtastenstuhles, mit Haltern, welche die Tastnadeln tragen, die senkrecht zur Lochkarte bewegt werden, wobei einer Schaftmaschine zum Steuern der   Schaftbewegung Impulse über Stossstangen   gegeben werden, dadurch gekennzeichnet, dass jede Tastnadel (14) mittels eines Haltestückes   (15)   an einer Sperrstange (16, 19) be- festigt ist,   wobei die Sperrstange (16, 19)   an einem dreischenkeligen, federbelasteten Schwenkhebel (23) um ihre eigene Achse drehbar und in dessen Ebene gegen   die Kraft einer Feder (31) in Abhängigkeit   von der Lo- chungder Musterkarte (11) schwenkbar gehalten ist, wobei der Schwenkhebel (23) mit einem Antrieb zum Aus- heben der Tastnadeln (14) und mit den Steuerelementen (33, 34)

   für die Schaftmaschine zusammenwirkt und   jeder Sperrstange (16, 19) ein fester Anschlag (20)   zugeordnet ist, gegen welchen sie nur   beimEindringen   der
Tastnadel (14)   in ein Loch der Musterkarte (l l) stösst,   die Schwenkbewegung der   Sperrstange (16, 19)   ausbleibt,   und damit eine von der Belastungsfeder (29) verursachte Verstellbewegung des Schwenkhebels   (23) verhindert.



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  Stylus apparatus for moving the heald frames according to the pattern
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 controlling shaft is brought to its lower position. If it is already there, it will stay there.



   PATENT CLAIMS:
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 by scanning chair, with holders which carry the scanning needles which are moved perpendicular to the punch card, a dobby for controlling the shaft movement being given impulses via bumpers, characterized in that each scanning needle (14) is attached to a locking rod (16 , 19), the locking bar (16, 19) being rotatable about its own axis on a three-legged, spring-loaded pivot lever (23) and in its plane against the force of a spring (31) depending on the perforation of the sample card (11) is held pivotably, the pivot lever (23) with a drive for lifting the scanning needles (14) and with the control elements (33, 34)

   for the dobby and each locking rod (16, 19) is assigned a fixed stop (20), against which it is only used when the
The wand (14) pushes into a hole in the sample card (l l), the pivoting movement of the locking rod (16, 19) does not occur, and thus an adjustment movement of the pivot lever (23) caused by the loading spring (29) is prevented.

Claims

2. Stylus apparatus according to claim l, characterized in that for mounting the locking rod (16, 19) in the first arm (22) of the pivot lever (23) a conical bearing trough for one end (17) of the Locking rod (16. 19) and in the middle arm (25) of the pivot lever (23) a slot for the locking rod (16, 19) is provided, the third arm (27) of the pivot lever (23) being actuated by a camshaft (30) running synchronously with the loom drive against the action of a spring (29).

3. A wand apparatus according to claim l, characterized in that to achieve the rotation of the locking rod (16, 19) for scanning two rows of holes lying in the transverse direction on the sample card (11), one in the transverse direction to the sample card (11) is displaceable and each with one Longitudinal slot (38) for each Stylus (14) provided rail (39) is provided.