DE100055C - - Google Patents

Info

Publication number
DE100055C
DE100055C DENDAT100055D DE100055DA DE100055C DE 100055 C DE100055 C DE 100055C DE NDAT100055 D DENDAT100055 D DE NDAT100055D DE 100055D A DE100055D A DE 100055DA DE 100055 C DE100055 C DE 100055C
Authority
DE
Germany
Prior art keywords
hub
way
piece
longitudinal direction
tube
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.)
Active
Application number
DENDAT100055D
Other languages
German (de)
Publication of DE100055C publication Critical patent/DE100055C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Den Gegenstand der vorliegenden Erfindung bildet eine Nabe für Fahrräder, welche im wesentlichen dadurch gekennzeichnet ist, dafs sie aus einem einzigen Stahlrohr besteht, welches durch Stauchen in der Längsrichtung die beiden zur Aufnahme der Speichen erforderlichen Wulste erhalten hat.The subject of the present invention forms a hub for bicycles, which in the is essentially characterized in that it consists of a single steel tube, which the two required to accommodate the spokes by upsetting in the longitudinal direction Has received bulges.

Die Erfindung wird durch die beiliegende Zeichnung veranschaulicht.The invention is illustrated by the accompanying drawing.

Fig. ι zeigt die Nabe von der Seite, und zwar theils im Schnitt, theils in Ansicht.Fig. 1 shows the hub from the side, partly in section, partly in view.

Fig. 2 zeigt eine Endansicht der Nabe.Figure 2 shows an end view of the hub.

Die Herstellung der Nabe erfolgt in der Weise, dafs ein nahtloses Rohrstück aus Stahl oder einein anderen für geeignet erachteten Material derart in der Längsrichtung gestaucht wird, dafs an beiden Enden die zur Aufnahme der Speichen erforderlichen Wulste α entstehen. Die auf diese Weise hergestellten Naben sind nicht nur wesentlich billiger als die bisherigen, sondern auch bedeutend haltbarer. The hub is manufactured in such a way that a seamless tubular piece of steel or some other material considered suitable is compressed in the longitudinal direction in such a way that the bulges α required to accommodate the spokes are formed at both ends. The hubs made in this way are not only significantly cheaper than the previous ones, but also significantly more durable.

Die Fig. 3 beiliegender Zeichnung stellt das Gesenke dar, mit welchem das neue Verfahren ausgeführt wird.Fig. 3 of the accompanying drawing shows the dies with which the new method is performed.

Wie ohne Weiteres ersichtlich, besteht das Gesenke aus einem Kopfstück A, einem Bodenstück B und dem zwischen beiden liegenden Mittelstück, welches aus einem zweitheiligen Ring D und E besteht, der durch den Schlofsring F zusammengehalten wird. Die zu kröpfende Metallröhre wird auf einen Dorn C aufgesteckt, welcher die Weite des lichten Durchmessers der Nabenröhre besitzt. Das Arbeitsstück liegt in den ringförmigen Einschnitten b bezw. bi des Bodenstückes bezw. Deckels auf. Wird nun auf das Kopfstück des Gesenkes ein Druck ausgeübt, so kann sich die Röhre nur an den Stellen G und H des Gesenkes auswulsten, so dafs nach Vollendung des Druckes das in Fig. 1 und 2 dargestellte Product entsteht.As is readily apparent, the die consists of a head piece A, a bottom piece B and the middle piece located between the two, which consists of a two-part ring D and E , which is held together by the lock ring F. The metal tube to be crimped is placed on a mandrel C, which has the width of the inside diameter of the hub tube. The work piece lies in the annular incisions b respectively. b i of the bottom piece respectively. Lid on. If pressure is now exerted on the head piece of the die, the tube can only bulge out at points G and H of the die, so that after the pressure has been completed the product shown in FIGS. 1 and 2 is produced.

Claims (1)

Patent-Anspruch:Patent claim: Ein Verfahren zur Herstellung von Fahrradnaben, dadurch gekennzeichnet, dafs man ein glattes Metallrohr, dessen Durchmesser gleich dem der fertigen Nabe ist, durch einmaliges Stauchen derart über einen Dorn in seiner Längsrichtung kalt preist, dafs bei (a und al) die zum Befestigen der Radspeichen erforderlichen Flanschen entstehen.A process for the manufacture of bicycle hubs, characterized in that a smooth metal tube, the diameter of which is the same as that of the finished hub, is cold-priced by compressing it once over a mandrel in its longitudinal direction in such a way that at (a and a l ) the one for fastening the Flanges required for wheel spokes are created. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT100055D Active DE100055C (en)

Publications (1)

Publication Number Publication Date
DE100055C true DE100055C (en)

Family

ID=370903

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT100055D Active DE100055C (en)

Country Status (1)

Country Link
DE (1) DE100055C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629622A1 (en) * 1986-08-30 1988-03-03 Fichtel & Sachs Ag Driving hub for bicycles or the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629622A1 (en) * 1986-08-30 1988-03-03 Fichtel & Sachs Ag Driving hub for bicycles or the like
DE3629622C2 (en) * 1986-08-30 1998-04-09 Mannesmann Sachs Ag Drive hub for bicycles or the like.

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