DE303798C

DE303798C -

Info

Publication number: DE303798C
Application number: DENDAT303798D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Für Handverletzte sind bereits Hilfsg'eräte geschaffen worden, mit denen es möglich ist, Werkstücke auf dem Arbeitstisch oder über diesem festzuhalten. Die Spannstellung der Einspann- oder Andrückvorrichtung erfolgt dabei mittels Fußtrittes. Diese bekannten Hilfsgeräte sind vorwiegend für den Bureaubedarf bestimmt und sind deshalb für die Benutzung durchAuxiliary devices are already available for hand injured persons have been created with which it is possible to hold workpieces on the work table or above it. The clamping position of the clamping or pressing device takes place by means of a kick. These known auxiliary devices are primarily intended for office use and are therefore intended for use by

ίο Handwerker wenig oder gar nicht geeignet.ίο Craftsmen little or not at all suitable.

Bei handwerklichen Arbeitsverrichtungen müssen die Werkstücke ganz nach ihrer Beschaffenheit wagerecht, senkrecht oder geneigt erfaßt und auch in sehr unterschied liehen Abständen von der eigentlichen Arbeitsstelle gehalten werden.In the case of manual work, the workpieces must be entirely according to their nature horizontally, vertically or inclined and also in very different ways borrowed distances are kept from the actual job.

Soll das mittels Fußtrittes in Spannstellung zu bewegende Hilfsgerät die Hand oder den fehlenden Arm irgendeines Handwerkers ersetzen können, so muß es imstande sein, das jeweils zu bearbeitende Werkstück genau in derselben Weise zu erfassen und in der gewünschten Lage zu halten, wie es sonst mit der Hand geschieht.If the auxiliary device to be moved into the clamping position by means of a kick is the hand or to replace the missing arm of some craftsman, it must be able to do so be to capture the workpiece to be machined in exactly the same way and in in the desired position, as is usually done by hand.

Diesen Anforderungen wird mit der Er-' fmduttg dadurch Rechnung getragen, daß eine in bekannter Weise mittels Fußtrittes in Klemmstellung zu bewegende Zange mit einem Kreuzgelenk in solche Verbindung gebracht wird, daß die Schließbewegung mittels des Fußtrittes in jeder Einstellung der Zange erfolgen kann. An einer längsverschiebbaren Achse sitzende Werkstückhalter, die durch ein Kreuzgelenk und außerdem durch Drehung um ihre Achse eine allseitig'e Einstellung ermöglichen, sind bekannt. Das solcherart mittels Fußtrittes zu schließende Maul der Zange läßt sich somit nach Art des Werkstückes wagerecht, senkrecht oder auch in beliebiger Neigung einstellen und innerhalb weiter Grenzen in jede gewünschte Höhenlage bringen und außerdem in beliebigem wag-erechten Abstand zur eigentlichen Arbeitsstelle verschwenken, so daß kleinere und größere Werkstücke beliebiger Form mit dem Gerät ebenso über der Arbeitsstelle gehalten werden können, wie das sonst geAvöhnlich von Hand geschieht.The Er- 'fmduttg takes these requirements into account in that a pliers to be moved in a known manner by means of a kick in the clamping position a universal joint is brought into connection that the closing movement means the kick can be done in any setting of the pliers. On one that can be moved lengthways Axis seated workpiece holder, which by a universal joint and also by rotation around its axis an all-sided Allow setting are known. The one to be closed in this way with a kick The jaws of the pliers can thus be positioned horizontally, vertically or evenly depending on the type of workpiece set at any inclination and within wide limits in any desired angle Bring altitude and also at any distance from the actual Swivel job so that smaller and larger workpieces of any shape with the device can also be held above the work site, as is otherwise usual done by hand.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. An exemplary embodiment of the invention is shown in the drawing.

Fig. ι zeigt im Aufriß das Gerät, dessen Zange mittels Schnurzug zu schließen ist, und Fig. 2 zeigt teihveise im Aufrißschnitt eine Ausführungsform, bei welcher die Öffnungsund Schließbewegung der Zange durch eine Hebel stange erfolgt.Fig. Ι shows in elevation the device whose Pliers is to be closed by means of a pull cord, and Fig. 2 shows partially in elevation section one Embodiment in which the opening and closing movement of the tongs is controlled by a Lever rod takes place.

Die schlank gestaltete Zange α besitzt einen runden Schaft b, welcher drehbar und. mittels einer Druckschraube r feststellbar in der Hülserf gehalten wird, so daß die Zange« um ihre eigene Achse beliebig verstellt werden kann. Der eine Zangenschenkel a schwingt um den Zapfen i und wird durch die Feder f in Offenstellung gedrängt. Die Schließbewegung erfolgt bei der Ausführungsform nach Fig. 1 durch einen Schnuroder Seilzug g, der durch den hohlen Schaft b hindurch nach der Rolle h des unbeweglichen Zangenschenkels und von dort nach dem Schenkel abführt. .The slender pliers α has a round shaft b, which can be rotated and. held in place in the sleeve by means of a pressure screw r so that the pliers can be adjusted as desired about its own axis. One of the pliers legs a swings around the pin i and is pushed into the open position by the spring f. In the embodiment according to FIG. 1, the closing movement takes place by means of a cord or cable pull g, which leads through the hollow shaft b to the roller h of the immovable pliers limb and from there to the limb. .

Der Seilzug endigt nach untenhin in einen Fußtrittbügel oder Trethebel. Damit Werk-The cable ends down in a foot stirrup or pedal lever. So that work

Claims

If pieces can be held in a certain position for a long time, it is advisable to set up the pliers so that they can be locked using a screw in and nut η (Fig. i). The sleeve is held so that it can swing vertically around the bolt k in a head piece ο which is mounted in the foot part q with a vertical pin p so that it can swing horizontally. While the pliers can thus be rotated as required depending on the type of workpiece and held in place by means of the screws r due to the rotatable mounting of the oscillating shaft b in the sleeve d, the hinge points k and p offer the possibility of the pliers both in the vertical direction and in the horizontal direction Direction "to a place any distance away from the work place. All these hinge points can of course be locked so that the workpiece is held securely while the work is being carried out. The foot section can be fixed on the workbench or set up temporarily adjustable using a screw clamp , and it is also possible to design this foot part in the manner of a column. So that the device can also be used to press workpieces onto other workpieces or tools, it can be provided with suspension devices for another train, which is in a kick lever or bracket digt. The embodiment of the arm replacement shown in Fig. 2 differs from the one just described only in that an angle lever t with rod u is used to open and close the pliers α α ', which carries a plate w at its front ends through their mutually inclined Slots ν pins s of the pliers legs α α 'reach through. When the angle lever t swings down, there is such a shift P λ th τ claims: the plate w that the pliers are closed by its slots. In the case of the reverse movement, it is opened. The opening movement can be brought about by the spring y. To grasp lighter and weaker workpieces, the front ends of the pliers legs can be provided with appropriately designed attachments so that they are able, for example, to themselves the smallest nails and screws had to be held in place until they were partially hammered or screwed into the fastening point.

1st Pliers-like workpiece holder with foot operation, especially for hand injured persons, characterized by the combination of a pair of pliers (α α), which can be closed by means of a footstep and rotatable about its axis, with a universal joint (kp) in such a way that the in any vertical as well as any horizontal distance pliers adjustable from the workplace can be moved into the closed position in any position by means of the foot step.

2. Workpiece holder according to claim 1, characterized in that it is provided opposite the tong pull (g) with a suspension device (s) for pulling down the tongs (α α ') .

3. Workpiece holder according to claim 1, characterized in that the opening and closing movement of the tongs by a linkage (tu) with a slot guide (ν s) for the tong legs (α α) takes place.

1 sheet of drawings.