DE157069C

DE157069C -

Info

Publication number: DE157069C
Application number: DENDAT157069D
Authority: DE
Priority date: 1904-01-18
Also published as: FR350810A

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Hölzerne Radspeichen haben bekanntlich in der Regel runde Schäfte und mit der Radnabe zu verbindende Kopfenden mit sogen. »Schilden«, d. h. Teile mit flachen, spitz zulaufenden Stirnflächen (s. beispielsweise Fig. 6 und 8 der Zeichnung). Das Gleiche gilt für sehr viele hölzerne Werkzeugstiele. ' Bis heute werden solche Radspeichen bezw. Werkzeugstiele aus rechteckigen Holzstücken zumeistAs is well known, wooden wheel spokes usually have round shafts and with the wheel hub to be connected head ends with so-called. "Shields," d. H. Parts with flat, pointed ones End faces (see, for example, FIGS. 6 and 8 of the drawing). The same applies very many wooden tool handles. 'To this day, such wheel spokes are resp. Tool handles mostly from rectangular pieces of wood

ίο vermittels des sogen. Zieheisens hergestellt, was eine sehr mühsame und zeitraubende Arbeit ist. Vorliegende Erfindung betrifft nun eine Vorrichtung, welche im Querschnitt ovalrunde Radspeichen mit Schilden aus einem rechteckigen Holzstück selbsttätig zu schneiden gestattet. Als Werkzeug dient ein umlaufendes Rundschnittmesser. Der Erfin-dungsgegenstand besteht aus einer beweglichen Wange, welche durch Führungen in einer krummlinigen, für die Schildbildung erforderlichen Bahn an das Messer heranbewegbar geführt ist, und einem an dieser Wange geradlinig verschiebbaren, mit ihr lösbar gekuppelten Schlitten mit Spannvorrichtung zum Einspannen des Werkstückes (rechteckiges Holzstück), alles in solcher Anordnung, daß zunächst Wange und Schlitten zusammen zwecks Zuschneidens des Schildes der Speiche gegen das Messer hinbewegt werden können und dann der Schlitten nach Löskuppeln von der Wange für sich allein zwecks Rundschneidens des Speichenschaftes geradlinig an der festgestellten Wange vorgeschoben werden kann.ίο by means of the so-called. Made of drawing iron, which is a very tedious and time consuming job. The present invention relates now a device which has oval-round wheel spokes with shields in cross-section a rectangular piece of wood is allowed to cut automatically. A is used as a tool circumferential round cutting knife. The subject of the invention consists of a movable Cheek, which by guides in a curvilinear, necessary for the shield formation Web is guided to the knife so that it can be moved, and one that can be moved in a straight line on this cheek and is detachably coupled to it Slide with clamping device for clamping the workpiece (rectangular piece of wood), all in such an arrangement, that first the cheek and slide moved together for the purpose of cutting the shield of the spoke against the knife and then the slide after releasing the coupling from the cheek on its own for the purpose of circular cutting of the spoke shaft in a straight line on the fixed cheek can be.

Die Fig. ι und 2 der beiliegenden Zeichnung -veranschaulichen in Oberansicht eine zur Bearbeitung von Speichen dienende Ausführungsform dieser Vorrichtung im Ruhezustand und während des Arbeitens.FIGS. 1 and 2 of the accompanying drawing illustrate a top view embodiment of this device for processing spokes in the idle state and while working.

Fig. 3, 4 und 5 sind Einzeldarstellungen.3, 4 and 5 are individual representations.

Big. 6, 7 und 8 zeigen Beispiele von Radspeichen (für sich allein und in Anwendung), wie sie mit dieser Vorrichtung hergestellt werden können.Big. 6, 7 and 8 show examples of wheel spokes (on its own and in use), as they can be produced with this device.

Es ist α (Fig. 1 und 2) ein wagerechter Arbeitstisch, durch dessen Mitte die senkrechte Welle b geht, die ein gabelförmig profiliertes Rundschnittmesser c trägt (Fig. 4). Diese Messerwelle wird mit großer Geschwindigkeit in Umdrehung versetzt. Auf dem Tisch α ist zur Seite der Messerwelle b eine Wange d beweglich gelagert; ein Zapfen e derselben greift in einen geradlinigen Schlitz f des Tisches α (Fig. 3), während die Wange d andererseits mit einem bei g am Tisch drehbar gelagerten Handhebel h durch eine Schlitzzapfenverbindung zusammenhängt. Auf dem Tisch α ist eine Wangenführungsschiene i einstellbar und auswechselbar befestigt, welche mit einem krummlinigen, für die Schildbildung an der Speiche erforderlichen Schlitz j verseilen ist, in welchen ein Finger k der Wange d eingreift. Durch die Schlitzführung der Wange d (Schlitz f und Schlitz j) wird diese letztere, wenn sie durch Drehung des Hebels h auf dem Tisch vorgeschoben wird, gezwungen, eine entsprechend krummlinige Bahn in bezug' auf das Messer c aus-It is α (Fig. 1 and 2) a horizontal work table, through the center of which the vertical shaft b goes, which carries a fork-shaped profiled circular knife c (Fig. 4). This knife shaft is set in rotation at high speed. A cheek d is movably mounted on the table α on the side of the knife shaft b; a pin e of the same engages in a straight slot f of the table α (Fig. 3), while the cheek d, on the other hand, is connected to a hand lever h rotatably mounted on the table at g by a mortise and tenon connection. A cheek guide rail i is adjustable and replaceably attached to the table α, which is stranded with a curvilinear slot j required for the formation of a shield on the spoke, in which a finger k of the cheek d engages. The slot guide of the cheek d (slot f and slot j) forces the latter, when it is advanced on the table by turning the lever h , to follow a correspondingly curvilinear path in relation to the knife c.

Claims

respectively. The slotted rail i also serves to limit the stroke of the cheek d. The cheek d is provided with a dovetail-shaped guide (FIG. 5) in which a carriage m is slidably arranged. This carriage carries a clamping device consisting of a front jaw η and a rear jaw 0 each with a clamping screw for clamping the rectangular pieces of wood ν serving as workpieces and is equipped with a handle ρ to move the carriage m in the cheek d. The latter is provided with an opening r (FIG. 5) and the slide in with an opening s. A bolt t passing through these openings is used for the temporary coupling of the slide m with the cheek d. The device described is used in the following way: After a workpiece in the form of a rectangular piece of wood ν has been clamped between the jaws η ο and the slide m has been coupled with the cheek d through the bolt t, the drive of the knife shaft b engaged and by grasping the lever h and the handle ρ the cheek together with the slide 'advanced, whereby the whole thing is moved in a curvilinear path to the knife c according to the slot guide provided for the cheek, so that the latter is gradually more and more incisive the shield surfaces, as shown in FIG. 8, can arise. With the guide finger k of the cheek reaching the left end of the slot in the rail i, the shield is also produced over its entire length. Then the bolt t is pulled up for the purpose of decoupling and the slide m alone, for which the cheek now held against adjustment by the rail i and by continued action on the lever h, forms the guide, by means of the handle ρ in this cheek, so that now the knife c evenly processes the part of the workpiece corresponding to the spoke shaft on the half facing it and cuts it round. Once this has been completed, the lever h is turned in the opposite direction in order to remove the workpiece that has been processed on one side and, after turning and re-clamping, to have its other half processed in the same way. In this way, one obtains a wheel spoke that is oval-round in the shaft part and provided at one head end with a front and a rear shield. As can be seen from FIGS. 1 and 2, the slide m has a number of holes u, which allow adjustment of the clamping jaw 0 fastened by means of screws on the slide, which can be used for clamping workpieces which differ considerably in length. The wheel camber is expediently made larger than the front because of the rear shield of the spokes. So z. For example, FIGS. 6 to 8 show a spoke with two dissimilar shields; it is namely w the oval-round shaft, \ the pin, χ the front and y the rear, longer shield of the spoke. Such changes in the proportions of the shields of the spokes can be achieved by using cheek guide rails with an appropriately curved slot. The device can, if necessary, on an existing woodworking machine, such as. B. moulder attached. Patent-A ν Proverbs:

1. Device for cutting round, wooden wheel spokes with head shields and tool handles from rectangular workpieces, characterized by a cheek that can be moved to the rapidly rotating circular knife (c) through guides (f and j) in a curvilinear path required for shield formation (d ) and one in the same linearly displaceable, releasably coupled with her carriage (m) with clamping device for clamping the workpiece, which cooperate in such a way that first cheek (d) and carriage (in) together for the purpose of cutting the shield of the spoke respectively. of the tool handle can be moved towards the knife (c) and then the carriage (in) after uncoupling from the cheek (d) for the purpose of cutting the spoke respectively. Handle shaft can be pushed forward in a straight line on the fixed cheek (d) .

2. Apparatus according to claim 1, characterized in that the one guide for the cheek (d) consists of an exchangeable rail (i) which is provided with a guide slot (j) for the pin (It) of the cheek and also to limit it of the stroke of the latter.

1 sheet of drawings.