DE378134C - Process for the production of door handles from seamless tube - Google Patents

Process for the production of door handles from seamless tube

Info

Publication number
DE378134C
DE378134C DEC27351D DEC0027351D DE378134C DE 378134 C DE378134 C DE 378134C DE C27351 D DEC27351 D DE C27351D DE C0027351 D DEC0027351 D DE C0027351D DE 378134 C DE378134 C DE 378134C
Authority
DE
Germany
Prior art keywords
production
seamless tube
door handles
trigger
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEC27351D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DEC27351D priority Critical patent/DE378134C/en
Application granted granted Critical
Publication of DE378134C publication Critical patent/DE378134C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/38Making other particular articles locksmith's goods, e.g. handles
    • B21D53/42Making other particular articles locksmith's goods, e.g. handles keys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Um bei Türdrückern sogenanntes Sparmaterial nicht verwenden zu müssen, ist man unter anderem schon dazu übergegangen, Türdrücker aus nahtlosem Rohr (dem bekannten Mannesmannrohr) herzustellen. Danach wird ein auf Länge abgeschnittenes Stahlrohr durch einen Schrägschnitt geteilt, und die Teile werden dann im rechten Winkel aneinandergesetzt und zusammengeschweißt. Um dem DrückerstiftIn order not to have to use so-called savings material with door handles, one is among other things already switched to, door handle made of seamless tube (the well-known Mannesmann tube) to manufacture. Thereafter, a steel pipe cut to length is divided by a bevel cut, and the parts are then put together at right angles and welded together. To the trigger pin

ίο Aufnahme zu gewähren, wird in dem solchermaßen gebildeten Drückerhals eine besondere Hülse eingesetzt, welche einen vierkantigen lichten Querschnitt besitzt.
Dieses Herstellungsverfahren ist außerordentlieh umständlich und zeitraubend sowie mangelhaft, weil die Schweißstelle, welche gleichzeitig die meistbeanspruchte Drückerstelle ist, einem Bruch leicht ausgesetzt ist. Wahrscheinlich ist der solchermaßen geschaffenen Bauart der Ge-
To allow reception, a special sleeve is used in the handle neck formed in this way, which has a square clear cross-section.
This manufacturing process is extremely laborious and time-consuming as well as inadequate because the welding point, which is also the most stressed trigger point, is easily exposed to breakage. Probably the type of construction created in this way is

danke vorausgegangen, die Übergangsstelle zwischen Drückerhals und Drückergriff zu biegen, doch konnte die erforderliche verhältnismäßig scharfe und kurze Biegung bei dem vorliegenden spröden Material nicht ausgeführt werden. Auch bei dem der Erfindung zugrunde liegenden Verfahren geschieht die Bildung des Türdrückers aus einem nahtlosen Rohr. Indessen besteht hier erfindungsgemäß der Drükkerhals mit dem Drückergriff, ebenso die Einsatzstelle des Drückerstiftes aus einem einzigen zusammenhängenden Stück, wobei eine den Beanspruchungen beim Biegen standhaltende Biegungsstelle dadurch geschaffen worden ist, daß das Rohrstück, aus welchem der Türdrücker gebildet werden soll, nach der Biegestelle und dem Drückerhalse hin allmählich verjüngt wird, worauf diese Einschnürung rechtwinklig umgebogen wird und die anschließenden Stücke mit entsprechenden allmählichen Übergängen zum ursprünglichen Rohrdurchmesser zum Drückergriff und Drückerhals ausgebildet werden.thank you preceded the transition point between the trigger neck and the trigger handle could bend, but could make the required relatively sharp and short bend in the present brittle material cannot be run. Also in the method on which the invention is based, the formation of the occurs Lever handle made from a seamless tube. In the meantime, according to the invention, there is the pusher neck here with the trigger handle, as well as the insertion point of the trigger pin from a single one contiguous piece, one of which withstands the stresses of bending The bending point has been created in that the piece of pipe from which the door handle is to be formed, gradually tapering towards the bending point and the trigger neck, whereupon this constriction is bent at right angles and the subsequent pieces with corresponding gradual transitions from the original pipe diameter to the Trigger handle and trigger neck are formed.

In der Zeichnung ist ein Ausführungsbeispiel eines nach dem Verfahren hergestellten Drückergriffes, und zwar inIn the drawing is an embodiment of a handle manufactured according to the method, namely in

Abb. ι im Mittelschnitt nach A-B der Abb. 2 und inFig. Ι in the middle section according to AB in Fig. 2 and in

Abb. 2 in Aufsicht dargestellt.Fig. 2 shown in top view.

Um den Bodenschluß des Rohrstückes am Griff herbeizuführen, wird das Ende 1 desselben zugeschärft und dann durch einen nach innen gerichteten, allseitigen Druck umgebördelt und zur Kappe geformt. Hierauf wird das Rohrstück im mittleren Teil nach der späteren Biegungsstelle 3 hin verjüngt. Diese Einschnürung gestattet den Biegeprozeß ohne Reißen oder Knicken des Rohres. Durch rechtwinkliges Umlegen der Kanten am anderen offenen Rohrende wird die Einsatzstelle 2 für den Drückerstift geschaffen.To bring about the bottom closure of the pipe section on the handle, the end 1 of the same Sharpened and then flanged by an inward pressure on all sides and shaped into a cap. Then the pipe section is in the middle part after the later bending point 3 tapers. This constriction allows the bending process to take place without tearing or kinking the pipe. By right-angled Turning the edges on the other open end of the pipe becomes the insert point 2 for the trigger pin created.

Claims (1)

Patent-An Spruch:Patent-An saying: Verfahren zur Herstellung von Türdrükkern aus nahtlosem Rohr, dadurch gekennzeichnet, daß zur Bildung eines handlichen Griffes und zur Ermöglichung einer rechtwinkligen Krümmung das Rohr nach der Biegestelle hin von beiden Enden allmählich verjüngt wird und zur Bildung der Drückerstifteinsatzstelle (2) die offenen Stirnkanten des Drückerhalses rechtwinklig nach innen umgelegt werden.Process for the production of door handles from seamless tube, characterized in that for the formation of a handy Handle and to allow a right-angled bend the tube gradually towards the bending point from both ends is tapered and the open front edges to form the push pin insertion point (2) of the trigger neck are turned inwards at right angles. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DEC27351D Process for the production of door handles from seamless tube Expired DE378134C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC27351D DE378134C (en) Process for the production of door handles from seamless tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC27351D DE378134C (en) Process for the production of door handles from seamless tube

Publications (1)

Publication Number Publication Date
DE378134C true DE378134C (en) 1923-07-04

Family

ID=7018332

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC27351D Expired DE378134C (en) Process for the production of door handles from seamless tube

Country Status (1)

Country Link
DE (1) DE378134C (en)

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