CH648085A5

CH648085A5 - Unit for twisting two straight wire ends

Info

Publication number: CH648085A5
Application number: CH3637/84A
Authority: CH
Inventors: Kurt Rueegg; Viktor Lichtensteiger
Original assignee: Gamper & Co Ag
Priority date: 1984-07-26
Filing date: 1984-07-26
Publication date: 1985-02-28

Abstract

The unit has a hollow handle (3) and a headpiece (4) which can rotate with respect to said handle. A bar (10) fastened on the headpiece has a helical groove and is seated in the cavity of the handle, in which a counter-piece interacts with the groove, such that, when the handle is displaced axially towards the headpiece, the two parts are set in rotation with respect to one another. A clamping device (2, 9, 6, 7) on the headpiece permits fixing of the two straight ends of the wire piece which are twisted together as a result of the abovementioned rotation. <IMAGE>

Description

**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **. ** WARNING ** beginning of DESC field could overlap end of CLMS **.

PATENTANSPRÜCHE 1. Gerät zum Zusammendrehen zweier gerader Drahtenden, dadurch gekennzeichnet, dass an einem Handgriff (3) verdrehbar ein Kopfstück (4) sitzt, das eine durch Hebeldruck (6) entgegen Federkraft lösbare Klemme (2, 9) zum Festklemmen der beiden Drahtenden aufweist, während der Handgriff Mittel (10, 11) aufweist, um durch axiales Verschieben gegenüber dem Kopfstück, dieses in Drehung gegenüber dem Handgriff zu versetzen. PATENT CLAIMS 1. Device for twisting two straight wire ends, characterized in that a head piece (4) is rotatably seated on a handle (3) and has a clamp (2, 9) which can be released by lever pressure (6) against spring force for clamping the two wire ends, while the handle has means (10, 11) to set the head piece in rotation with respect to the handle by axial displacement.

2. Drahtstück zur Verwendung mit dem Gerät nach Patentanspruch 1, dadurch gekennzeichnet, dass die beiden Drahtenden geradlinig sind. 2. Wire piece for use with the device according to claim 1, characterized in that the two wire ends are rectilinear.

Es sind bereits verschiedene Geräte bekannt, mit denen die Enden eines Drahtstückes, das einen zu umschnürenden Gegenstand oder mehrere zusammenzuhaltende Gegenstände umschlingt, miteinander verdrillt werden können. Various devices are already known with which the ends of a piece of wire which wraps around an object to be strapped or several objects to be held together can be twisted together.

Dabei wurden, beispielsweise zum Verbinden mehrerer Armierungseisen Drahtstücke verwendet, die an beiden Enden mit Schlingen versehen sind. Das Drahtstück wird zunächst um den zu verschnürenden bzw. die zu verbindenden Gegenstände gelegt. Durch die einander genäherten Schlingen an den Drahtenden wird sodann der Bügel eines Handgerätes geführt, der an einem gegenüber dem Handgriff drehbaren Kopfstück sitzt. Durch einen Schraubenmechanismus zwischen Griff und Kopfstück wird das letztere beim Ziehen am Griff in Rotation versetzt und damit das Verdrillen der beiden an die Schlingen angrenzenden Drahtenden bewirkt. Pieces of wire were used, for example to connect several reinforcing bars, which are provided with loops at both ends. The piece of wire is first placed around the objects to be tied or connected. The loop of a hand-held device is then guided through the loops which are sewn closer to one another at the wire ends and which is seated on a head piece which is rotatable relative to the handle. A screw mechanism between the handle and the head piece causes the latter to rotate when the handle is pulled, thus twisting the two wire ends adjacent to the loops.

Diesen bekannten Geräten haftet der grosse Nachteil an, dass nur mit Schlingen an den Enden versehene Drahtstücke verwendet werden können. Solche Drahtstücke werden zur Lagerung in einer grossen Anzahl zu einem Bündel zusammengefasst, das infolge der an den Enden vorhandenen Schlingen ein ziemlich sperriges Gebinde darstellt, im Gegensatz zu einem Bündel das aus Drahtstücken mit geraden Enden besteht. These known devices have the great disadvantage that only pieces of wire provided with loops at the ends can be used. Such pieces of wire are combined in large numbers for storage into a bundle which, due to the loops present at the ends, is a rather bulky package, in contrast to a bundle consisting of pieces of wire with straight ends.

Die vorliegende Erfindung hat sich daher die Aufgabe gestellt ein Gerät zu schaffen, bei dem für den eingangs erwähnten Zweck Drahtstücke mit geraden Enden verwendet werden können. Die wesentlichen Merkmale eines solchen Gerätes sind im Patentanspruch 1 angeführt. The present invention therefore has for its object to provide a device in which wire pieces with straight ends can be used for the purpose mentioned. The essential features of such a device are set out in claim 1.

Ein Ausführungsbeispiel des Erfindungsgegenstandes wird anhand der beiliegenden Zeichnung näher erläutert. Es zeigen: Fig. 1 das Drahtstück in zwei Zuständen, Fig. 2 eine Seitenansicht des Gerätes, teilweise im Schnitt, Fig. 3 das Gerät in Stirnansicht, Fig. 4 das Gerät mit etwas herausgezogenem Griff Fig. la zeigt das Drahtstück wie es in einer grossen Anzahl gebündelt auf Lager gehalten wird. Fig. 1 b zeigt das Drahtstück wie es um einige zu verbindende Stäbe 12 geschlungen ist. An embodiment of the subject matter of the invention is explained in more detail with reference to the accompanying drawings. Show it: 1 shows the piece of wire in two states, 2 is a side view of the device, partly in section, 3 the device in front view, Fig. 4 shows the device with a slightly pulled handle Fig. La shows the piece of wire as it is held in stock in a large number bundled. Fig. 1 b shows the piece of wire as it is wrapped around some rods 12 to be connected.

Das Gerät besteht aus einem hohlen Griffstück 3 und einem Kopfstück 4, an dem ein Stab 10 befestigt ist, der im Hohlraum des Griffstückes 3 liegt. In den Stab ist eine schraubenlinienförmige Nut 11 von grosser Steigung eingefräst, in die ein im Griffinneren angeordnetes Gegenstück eingreift. Zieht man Kopfstück 4 und Griff 3 entgegen der Wirkung einer eingebauten Feder auseinander, wie dies in Fig. 4 gezeigt ist, dann wird bei festgehaltenem Griff das Kopfstück in Rotation versetzt. In einem U-förmigen Endstück 9 des Kopfstückes ist ein am Umfang mit einer Riffelung versehens Rad 2 um einen exzentrischen Achsbolzen 8 drehbar gelagert. Am Umfang des Rades 2 ist ein Hebel 6 angeschweisst, auf den eine von einem Bolzen 5 getragene Schraubenfeder 7 einwirkt. The device consists of a hollow handle 3 and a head 4, to which a rod 10 is attached, which lies in the cavity of the handle 3. A helical groove 11 with a large pitch is milled into the rod, into which a counterpart arranged in the interior of the handle engages. If the head piece 4 and the handle 3 are pulled apart against the action of a built-in spring, as shown in FIG. 4, the head piece is set in rotation when the handle is held. In a U-shaped end piece 9 of the head piece, a wheel 2 provided with a corrugation on the circumference is rotatably mounted about an eccentric axle pin 8. A lever 6 is welded onto the circumference of the wheel 2, on which a helical spring 7 carried by a bolt 5 acts.

Mit dem Hebel 6 wird das Rad 2 um die Achse 8 entgegen der Wirkung der Feder 7 im Uhrzeigersinn verschwenkt und die beiden Drahtenden in den so entstandenen Spalt zwischen dem Rad 2 und dem U-Stück 9 eingeschoben. Beim Loslassen des Hebels werden die Drahtenden eingeklemmt und durch Wegziehen des Griffstückes 3 das Kopfstück 4 zur Rotation gezwungen, wodurch die Drahtenden miteinander verdrillt werden. With the lever 6, the wheel 2 is pivoted about the axis 8 counterclockwise against the action of the spring 7 and the two wire ends are inserted into the gap between the wheel 2 and the U-piece 9. When the lever is released, the wire ends are clamped in and the head piece 4 is forced to rotate by pulling away the handle 3, as a result of which the wire ends are twisted together.

Es sei schliesslich noch erwähnt, dass durch die Verwendung gerader Drahtstücke nicht nur an Drahtlänge gespart wird, sondern auch die Herstellung wesentlich verbilligt wird, da das Anbringen von Schlingen an den Drahtenden entfällt. Finally, it should be mentioned that the use of straight pieces of wire not only saves on wire length, but also significantly reduces manufacturing costs, since there is no need to attach loops to the wire ends.

Claims

PATENT CLAIMS

1. Device for twisting two straight wire ends, characterized in that a head piece (4) is rotatably seated on a handle (3) and has a clamp (2, 9) which can be released by lever pressure (6) against spring force for clamping the two wire ends, while the handle has means (10, 11) to set the head piece in rotation with respect to the handle by axial displacement.

2. Wire piece for use with the device according to claim 1, characterized in that the two wire ends are rectilinear.

Various devices are already known with which the ends of a piece of wire which wraps around an object to be strapped or several objects to be held together can be twisted together.

Pieces of wire were used, for example to connect several reinforcing bars, which are provided with loops at both ends. The piece of wire is first placed around the objects to be tied or connected. The loop of a hand-held device is then guided through the loops which are sewn closer to one another at the wire ends and which is seated on a head piece which can be rotated relative to the handle. A screw mechanism between the handle and the head piece causes the latter to rotate when the handle is pulled, thus twisting the two wire ends adjacent to the loops.

These known devices have the great disadvantage that only pieces of wire provided with loops at the ends can be used. Such pieces of wire are combined in large numbers for storage into a bundle which, due to the loops present at the ends, is a rather bulky package, in contrast to a bundle consisting of pieces of wire with straight ends.

The present invention therefore has for its object to provide a device in which wire pieces with straight ends can be used for the purpose mentioned. The essential features of such a device are set out in claim 1.

An embodiment of the subject matter of the invention is explained in more detail with reference to the accompanying drawings. Show it: 1 shows the piece of wire in two states, 2 is a side view of the device, partly in section, 3 the device in front view, Fig. 4 shows the device with a slightly pulled handle Fig. La shows the piece of wire as it is held in stock in a large number bundled. Fig. 1 b shows the piece of wire as it is wrapped around some rods 12 to be connected.

The device consists of a hollow handle 3 and a head 4, to which a rod 10 is attached, which lies in the cavity of the handle 3. A helical groove 11 with a large pitch is milled into the rod, into which a counterpart arranged in the interior of the handle engages. If the head piece 4 and handle 3 are pulled apart against the action of a built-in spring, as shown in FIG. 4, the head piece is set in rotation when the handle is held. In a U-shaped end piece 9 of the head piece, a wheel 2 provided with a corrugation on the circumference is rotatably mounted about an eccentric axle pin 8. A lever 6 is welded onto the circumference of the wheel 2, on which a helical spring 7 carried by a bolt 5 acts.

With the lever 6, the wheel 2 is pivoted about the axis 8 counterclockwise against the action of the spring 7 and the two wire ends are inserted into the gap between the wheel 2 and the U-piece 9. When the lever is released, the wire ends are clamped in and the head piece 4 is forced to rotate by pulling away the handle 3, as a result of which the wire ends are twisted together.

Finally, it should be mentioned that the use of straight pieces of wire not only saves on wire length, but also significantly reduces manufacturing costs, since there is no need to attach loops to the wire ends.

** WARNING ** End of CLMS field could overlap beginning of DESC **.