DE102838C

DE102838C -

Info

Publication number: DE102838C
Application number: DENDAT102838D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 63: Sattlerei, Wagenbau und Fahrräder.CLASS 63: Saddlery, wagon construction and bicycles.

WILLIAM HENRY CHAPMAN in LONDON. Zerlegbare Nabe für Fahrräder.WILLIAM HENRY CHAPMAN in LONDON. Dismountable hub for bicycles.

Patentirt im Deutschen Reiche vom 12. März 1898 ab.Patented in the German Empire on March 12, 1898.

Der Zweck der vorliegenden Erfindung ist es, die Wegnahme des Treibrades bei einem Fahrrad von dem Gestell zu ermöglichen, ohne die Triebkette und das Kettengehä'use zu entfernen. The purpose of the present invention is to remove the drive wheel at a To enable bicycle from the frame without removing the drive chain and the chain housing.

Zu diesem Zwecke wird die Nabe in eigenthümlicher Weise aus zwei Theilen gebildet, welche so mit einander verkuppelt sind, dafs lediglich durch die Wegnahme des centralen Bolzens und die Lösung der Kupplung das Rad mit einem seiner Lager entfernt werden kann, während das andere Lager zugleich mit dem Kettenrad der Treibkette und dem Kettenkasten unverändert an dem Gestell bleibt.For this purpose the hub is formed in a peculiar way from two parts, which are so coupled with one another that only by removing the central one Bolt and loosening the clutch the wheel with one of its bearings can be removed can, while the other bearing at the same time with the sprocket of the drive chain and the chain case remains unchanged on the frame.

In den beiliegenden Zeichnungen ist eine derartige Construction dargestellt. Fig. 1 und 2 sind Ansichten der neuen Construction von zwei entgegengesetzten Enden, Fig. 3 ist ein Längsschnitt, Fig. 4 zeigt einen Theil der Kuppelstelle zwischen dem Theil A B abgewickelt, Fig. 5 und 6 zeigen Schnitte durch Abänderung der Kupplung der beiden Theile der Nabe.Such a construction is shown in the accompanying drawings. 1 and 2 are views of the new construction from two opposite ends, Fig. 3 is a longitudinal section, Fig. 4 shows part of the coupling point developed between the part AB , Figs. 5 and 6 show sections by modifying the coupling of the two parts the hub.

Die Nabe ist aus zwei Theilen A und B gebaut, welche durch einen Schraubenkragen C, der sich einerseits an einen Flantsch b anlegt, zusammengehalten werden.The hub is made up of two parts, A and B , which are held together by a screw collar C which, on the one hand, rests against a flange b .

Dabei schraubt sich das Gewinde dieses Kragens auf den Haupttheil A der Nabe auf, und die gegenüberliegenden Theile des mit Zahnlücken durchbrochenen Flantsches b und der entsprechend gestalteten Stirnseite des Theiles A greifen in einander ein (Fig. 3, 4 und 5).The thread of this collar is screwed onto the main part A of the hub, and the opposite parts of the flange b , which is perforated with tooth gaps, and the correspondingly shaped end face of part A engage in one another (Figs. 3, 4 and 5).

Die Verkupplung der beiden Nabentheile A und B kann in sehr verschiedener Art erfolgen.The coupling of the two hub parts A and B can be done in very different ways.

In jedem Falle müssen sie aber so in einander geschoben werden, dafs sie in tangentialer Richtung zu dem . Nabenumfang beansprucht werden können und der Kragen C selbst von jeder Beanspruchung frei bleibt. In Fig. 3 und 4 ist die zu diesem Zweck angebrachte Zahn- oder Klauenkupplung gezeigt, Fig. 5 zeigt in ähnlicher Weise Schraubenstifte a¹, welche radial in das Nabenende A eingeschoben sind und in entsprechende Schlitze a² des Theiles B eintreten.In any case, however, they must be pushed into one another in such a way that they are tangential to the. Hub circumference can be claimed and the collar C itself remains free from any stress. In Fig. 3 and 4 attached to this end tooth or claw coupling is shown, Fig. 5 shows in a similar way bolts pins a ^1, which are radially inserted into the hub end A and enter corresponding slots ^a2 of the part B.

In Fig. 6 ist der Theil b^l der Nabe A mit Gewinde versehen und schraubt sich in den Theil B ein, wobei das Gewinde entgegengesetzt dem des Kragens C verläuft, so dafs jeder Anstofs, der das eine Gewinde lockert, das andere anzieht.In Fig. 6, part b ^l of hub A is threaded and screwed into part B , the thread being opposite to that of collar C, so that any material which loosens one thread tightens the other.

Der Theil A trägt die Flantschen a, an welche sich die Speichen anschliefsen. Auf dem. Theil B ist das Zahnrad D befestigt, während die Fuge, welche die beiden Nabentheile trennt, zwischen diesem Zahnrad und dem benachbarten Flantsch α ist.Part A carries the flanges a to which the spokes are attached. On the. Part B is attached to gear D , while the joint separating the two hub parts is between this gear and the adjacent flange α .

Der Theil B ist innen zur Kugelbahn des Kugellagers E ausgestaltet, dessen Lagerkegel, statt auf dem centralen Bolzen befestigt zu sein, unmittelbar aufsen an dem unteren Ende der Hinterradgabel F angeschraubt ist.The inside of the part B is designed as the ball track of the ball bearing E , the bearing cone of which, instead of being attached to the central bolt, is screwed directly on the outside to the lower end of the rear fork F.

Der Lagerkegel hat zu diesem Zweck eine Schulter c, welche sich von innen an das Gabelende F anlegt, durch dessen Schlitz das mit Schraubengewinde versehene Ende durchgreift, welches mit Hülfe eines Zwischenringes H und der Mutter G befestigt wird und in bekannter Weise zur Regelung der Kettenspannung verstellbar ist. Das Zahnrad D kann auf demFor this purpose, the bearing cone has a shoulder c, which rests against the fork end F from the inside, through the slot of which the screw- threaded end extends, which is fastened with the aid of an intermediate ring H and the nut G and in a known manner to regulate the chain tension is adjustable. The gear D can be on the

Claims

Part B can be fastened in any suitable manner. In the drawing it is screwed onto a shoulder and secured by a nut d. / is the central bolt, one shoulder i of which fits into the outer end of the hollow bearing cone E, while the shoulder i1 is provided with screw thread in order to be screwed to the inner end of the bearing cone and so the bearing cone against that on it to support onerous weight. This is supported once directly outside in the fork and for the second time at i1. The bearing cone J of the ball bearing at the other end of the hub is clamped to the rear fork end F by means of a shoulder z2 of the central bolt / and a nut K. An intermediate ring H1 is interposed in a known manner, and adjustability in a known manner is also available on this side. The corresponding ball track L is adjustably screwed into the main part A in the hub and secured by a nut /. With this arrangement, the wear of the two ball bearings is compensated for by a single readjustment, and there is no tendency to pull the two legs of the rear fork together or to spread them apart, since the bearing cones E and J are attached to these fork legs themselves and through the bolts / are kept at a constant distance. The cup carrying the second ball track is slipped over the shoulder of the bearing cone J which is provided with screw threads. A flat nut j is attached between it and the other end -F1 of the fork leg. This sits in such a position that, even after the nut K and the bolt I have been removed, the bearing cone cannot fall out of the cup, nor is it so far removed from it that the balls can slide out. When a spoke is to be renewed on the side close to the gear, it is often necessary to remove the latter from the hub. This is very difficult because the gear is regularly screwed on very tightly. The solution of the two parts of the hub meets this difficulty. When releasing the hub, the method is used that the coupling C b is released and the screw nut K is removed. After the central bolt has been released, the part of the wheel hub on the left in Fig. 3, together with the left ball bearing, is released from the frame and can be pulled out. Before doing this, screw the nut j so close to the bearing plate L that it remains close enough to the bearing cone J to prevent the balls from falling out. Pa τ ε ν τ - A ν s ρ R ü c η ε:

1. A dismountable hub for drive wheels of bicycles, characterized in that the chain wheel (D) is attached to a special part (B) to be coupled with the hub, which at the same time forms one half (cup) of the ball bearing, the other half (Bearing cone E) is connected to the frame fork, for the purpose of being able to remove the wheel without having to remove the chain wheel.

2. An embodiment of the hub protected by claim 1, characterized in that that the bearing cone of one of the two ball bearings is permanently screwed to the associated half of the frame fork, while the other bearing cone is on the central bolt used for stiffening / is pushed on and clamped by screwing the same to the associated half of the frame fork, to which Purposes, the central bolt / and then the main part, the hub with the one Ball bearings that can be removed by yourself.

3. An embodiment of the hub protected by claim 1, characterized .by

. an axis (I) designed as a screw bolt with head / Zy , onto which the bearing cone (E) belonging to the bearing to be coupled to the hub is screwed on the one hand, while on the other hand it rests on a collar (i).

1 sheet of drawings.