DE231895C

DE231895C -

Info

Publication number: DE231895C
Application number: DENDAT231895D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 231895 KLASSE 11 a. GRUPPE- M 231895 CLASS 11 a. GROUP

bewegten Fadenführern.moving thread guides.

Patentiert im Deutschen Reiche vom 7. Januar 1909 ab.Patented in the German Empire on January 7, 1909.

Die Erfindung betrifft eine Fadenheftmaschine, welche in bekannter Weise mit drei Nadeln und zwei Fadenführern versehen und dazu bestimmt ist, eine Heftung auszuführen, die in bekannter Weise darin besteht, daß die durch eine Papierlage gezogenen beiden Enden des Heftfadens durch eine ebenfalls durch die Lage geführte, den Stich unterbrechende Schleife desselben Fadens hindurchgezogen werden, umThe invention relates to a thread sewing machine, which in a known manner with three Provided with needles and two thread guides and intended for sewing, which, in a known manner, consists in the two ends being drawn through a sheet of paper of the stitching thread through a loop that is also guided through the layer and interrupts the stitch of the same thread can be pulled through to

ίο eine genügend feste Heftung ohne auftragende Knoten zu erreichen.ίο a sufficiently firm stapling without bulky Reaching knot.

Gemäß der Erfindung treten zwei federnde Schenkel, die durch den gehobenen Nadelhalter in einen sich allmählich verengenden Schlitz eines Böckchens bewegt und dadurch zusammengedrückt werden, in die von der mittleren Nadel gebildete Fadenschleife ein und spreizen ■ beim. Niedergang des Nadelhalters die Schleife, indem sie aus dem Führungsschlitz hinaustreten. Hierdurch wird eine sichere und bequeme Ausführung dieser bekannten Heftung erreicht. .According to the invention, two resilient legs pass through the raised needle holder moved into a gradually narrowing slot of a lug and thereby compressed into the thread loop formed by the middle needle and spread ■ the. Decline of the needle holder the loop, by stepping out of the guide slot. This makes it safe and convenient Execution of this known stitching achieved. .

In der Zeichnung ist Fig. 1 eine Vorderansicht der Heftmaschine. Die Fig. 2 bis 5 zeigen Einzelheiten des Antriebes für die Fadenführer und die letzteren selbst. Die Fig. 6 bis 8 zeigen Einzelheiten des mittleren Nadelhalters mit Schleifenöffner. Die Fig. g bis 12 zeigen den Stich in seiner allmählichen Vollendung.In the drawing, Fig. 1 is a front view of the stapler. Figures 2 to 5 show Details of the drive for the thread guides and the latter themselves. FIGS. 6 to 8 show Details of the middle needle holder with loop opener. Figs. G to 12 show the Stab in its gradual consummation.

Zum Zwecke des Heftens werden die zusammengelegten Blätter mit dem Rücken nach unten auf einen durchlochten V-förmigen Tisch 31 (Fig. i, 6 und 7) gelegt, auf welchem dieselben nach Ingangsetzung der Maschine durch einen Fuß 32 gepreßt werden. Ist dies geschehen, dann beginnt die mittlere Nadel 25 mit ihrem Halter 41 ihre Aufwärtsbewegung. Nachdem sie die zu heftenden Blätter durchstochen hat, bleibt sie in einer solchen Höhe stehen, daß sich ihre Haken gegenüber dem über der Papierlage zwischen den Haltern 45 und 46 (Fig. 1) gespannten Heftfaden 47 befindet. Derselbe erstreckt sich von einer Spule 48 abwärts durch die öse des sm Halter 45 federnd angebrachten Armes 49 und sodann in geringem Abstande entlang der Falte der Papierlage, wobei sein Ende zwischen den federnden Backen 50 des Halters 46 eingeklemmt ist. Der Halter 45 sitzt auf einer Querachse 51 fest, während Halter 46 auf derselben verschoben werden kann. Nachdem die Nadel 25 die beschriebene Stellung erreicht hat, werden die Halter 45 und 46 nach hinten bewegt, um den Heftfaden in den Haken der Nadel zu legen. Nadel 25 bewegt sich nunmehr wieder abwärts, nimmt den von ihr erfaßten Faden 47 mit und bildet auf diese Weise eine Schleife 26 (Fig. 9).. In der Zwischenzeit haben sich die Seitennadeln 27 und 28, durch ähnliche Vorrichtungen wie Nadel 25 angetrieben, ebenfalls nach oben bewegt, bis deren Haken gegenüber Faden 47 angekommen sind (Fig. 9). Da sich die Hakender Nadeln 27 und 28 im Gegensatz zu Nadel 25 nach hinten öffnen, erfahren Fadenhalter 45 und 46 nunmehr eine nach vorn schwingende Bewegung, um den Faden in die Haken zu legen. Nadeln 27 und 28 bewegen sich nunmehr ebenfalls nach unten und bleiben in ge-For the purpose of stapling, the folded sheets are turned upside down placed below on a perforated V-shaped table 31 (Fig. i, 6 and 7), on which the same be pressed by a foot 32 after starting the machine. Has this happened then the middle needle 25 with its holder 41 begins its upward movement. After this it has pierced the sheets to be stapled, it stops at such a height that their hooks opposite the one above the paper layer between the holders 45 and 46 (Fig. 1) tensioned stitching thread 47 is located. The same extends from a spool 48 downward the eyelet of the sm holder 45 resiliently attached arm 49 and then at a small distance along the fold of the paper layer, with its end between the resilient jaws 50 of the Holder 46 is clamped. The holder 45 sits firmly on a transverse axis 51 while Holder 46 can be moved on the same. After the needle 25 the described Position reached, the holders 45 and 46 are moved backwards to the sewing thread to put in the hook of the needle. Needle 25 now moves downwards again, takes the thread 47 detected by it and in this way forms a loop 26 (FIG. 9) .. In the In the meantime, the side needles 27 and 28, by similar devices as Needle 25 driven, also moved upwards, until its hook opposite thread 47 arrived (Fig. 9). Since the hooks of needles 27 and 28, in contrast to needle 25 open to the rear, thread holders 45 and 46 now experience a swinging forward Movement to put the thread into the hooks. Needles 27 and 28 are now moving also down and stay in

1 %1 %

Claims

Stand a short distance under table 31. During this movement the needles became the thread end pulled out of jaws 50, whereupon thread holder 46 immediately moves in the direction after holder 45 to moved.

During the last part of this movement, arm 49 of holder 45 pushes through the loop of which the thread 47 extends between the jaws 50 of the holder 46 and opens this, in order to finally enter a depression of the same, what an immediate closing the jaws under spring action. Here cut those at the bottom Side of the jaws 50 seated knife 61 from the thread part grasped by the needles, while the free end of the winding thread is clamped between jaws 50. Thread holder 46 now moves back to its original position and thereby tensions the thread above the table 31, which is used for stapling the next book.

After the needles 27 and 28 pass the ends of the sewing thread through the to be united Sheets have pulled through it, provisionally in the form of loops (Fig. Above) each of the latter is inserted into one of the thread guides 29 and 30, which are located in the intermediate

. time in the opposite direction through the extended loop 26 until its hook 29 ¹ un3. 30 ¹ (FIG. 2) have arrived opposite the needles 27 and 28, the thread guide 29 moving directly behind the needles and the thread guide 30 moving directly in front of the needles. A slide 67 carries the thread guide 29 and is displaceable on a cross rail 68. It also carries a toothed rack 69 which, with the aid of the gear 70, transmits its movement to a toothed rack 72 attached to a second slide 71.

The thread guide 30 is attached to the slide 71.

The above-mentioned spreading of the middle loop 26 is carried out by an eyelet opener consisting of two resilient legs 76, which is normally pushed back by holder 41 (Fig. 1), the legs being pressed together as a result of their engagement in a gradually narrowing slot 77 of a guide 78 . However, when holder 41 has reached its lowest position (Figs. 6 and 7), the opener moves sideways, with its legs spreading as a result of the peculiarly shaped slot ^ ¹ J and thereby expanding the loop 26, so around the thread guides 29 and 30 to allow easy passage. When the holder 41 of the needle 25 has reached its lowest position, it is rotated 90 ° at the same time in order to allow the loop 26 to be easily released when it is drawn together.

After the hooks of the thread guides 29 and 30 in the manner described in relation to the Arrived by the needles 27 and 28 held thread ends, the latter are through Slide 79, 80 inserted into these hooks. The sliders get their movements from one Lever 81, which is pushed to the side during the last part of the forward movement of the slide 71 will. When the thread ends are inserted into the open thread guides 29 and 30, the latter begin their return movement with simultaneous lowering of the needles 27 and 28. The movements are mutual regulated that the closing of the guide hook with simultaneous entrapment of the thread ends by piston 73 only takes place after those previously formed by needles 27 and 28 Loops pulled out into a simple thread as a result of the decline of the needles have been. .

The further decrease in the thread guides first causes the central ones to contract Loop 26, and after this tightly around the thread ends previously pulled through it has laid, the latter gradually slip out of the thread guides at the same time further tightening the loop.

After the stitch is done this way and a new thread is already over that Table has been unclamped, foot 32 rises to remove the stapled and insert of an unstapled book.

The various devices of the machine are driven by a common shaft 33. · ^k 95

Godfather ν t-An s PRu CH:

Thread sewing machine with three vertically moving needles and two vertically moving needles Thread guides, which are the thread ends guided by the outer needle through the paper layer pull through the loop held by the middle needle, characterized by that two resilient legs (76), which by the raised needle holder (41) moves into a gradually narrowing slot (77) of a lug (78) and thereby are compressed, enter the thread loop (26) formed by the needle (25) and when the Stand the needle holder (41) out of the slot (77) and spread the loop (26).

For this purpose ι sheet of drawings.