AT79328B

AT79328B - Equipment on bicycles and similar vehicles to avoid accidents when the fork breaks.

Info

Publication number: AT79328B
Authority: AT
Inventors: Cornelis Van Der Leun
Original assignee: Cornelis Van Der Leun
Priority date: 1915-07-16
Filing date: 1916-06-03
Publication date: 1919-12-10

Description

  

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 Flansch, an der oberen Seite mit einem Gewinde versehen. Am Ende des   SteueMohMjS S ist   eine Biichse 12   gelötet,   die mit Muttergewinde für das Gewindende der Spindel 8 versehen ist. 



   Falls nun das innere Gabelrohr an einer gefährlichen Stelle, wie bei 13 angegeben, bricht, so bleibt trotzdem der Zusammenhang zwischen der Gabelnabe und dem Steuerrohr, mithin zwischen dem Vorderrade und dem Steuerrohr bestehen. Hiedurch wird verhindert, dass das Vorderrad sich   losreisst   und der Fahrer sich nach vorn überschlägt bzw. stürzt. 



   In Fig. 2 ist ein wagerechter Schnitt durch die Gabelnabe 9 gezeigt. Aus dieser Darstellung geht hervor, dass die Schraubenspindel 8 an der Stelle, wo sich die Gabelnabe befindet, abgeflacht ist. 



   In der Gabelnabe ist z. B. auf halber Höhe eine kleine Stiftschraube 14 angeordnet, die durch Zusammenwirken mit der Abflachung der Spindel 6 eine Verdrehung der Spindel zur Gabelnabe verhindert. 



   Dadurch bleibt dem Fahrer, selbst wenn das innere Gabelrohr an der Gabelnabe gebrochen ist, die Macht über sein Steuer erhalten, und es ist das Schwenken des Fahrrades nach links oder nach rechts, ohne den Willen des Fahrers ausgeschlossen. Versuche mit einem Fahrrade, dessen inneres Gabelrohr gebrochen war, haben die Wirksamkeit der beschriebenen Sicherung in jeder Hinsicht bewiesen.



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 Flange, threaded on the top. At the end of the SteueMohMjS S a connector 12 is soldered, which is provided with a nut thread for the threaded end of the spindle 8.



   If the inner fork tube now breaks at a dangerous point, as indicated at 13, the connection between the fork hub and the head tube, therefore between the front wheel and the head tube, still exists. This prevents the front wheel from tearing loose and the driver rolling over or falling forward.



   In Fig. 2 a horizontal section through the fork hub 9 is shown. It can be seen from this illustration that the screw spindle 8 is flattened at the point where the fork hub is located.



   In the fork hub is z. B. a small stud screw 14 is arranged halfway up, which prevents rotation of the spindle to the fork hub by interacting with the flattening of the spindle 6.



   As a result, even if the inner fork tube on the fork hub is broken, the rider retains control of his steering wheel and the bike cannot be turned left or right without the rider's will. Tests with a bicycle with a broken inner fork tube have proven the effectiveness of the described securing in every respect.

Claims

It is not necessary to tighten the screw spindle 8 forcefully. It is enough if this is done by hand. The inner fork tube then further forms the connection between the control and fork hub, while the spindle 8 serves exclusively as a structural part for securing, is not stressed and has no disadvantage as a result of the EMI2.1 a break in the inner fork tube is noticeable.

However, if the spindle is tightened too strongly, the spindle and the inner fork tube perform the same service. If the latter breaks, the spindle maintains the connection. It could then happen that the driver does not notice the break, which is not recommended.

The arrangement of the small screw 14 is one of the means by which rotation of the screw with respect to the fork hub can be prevented. The head of the screw spindle 8 can also be used for this purpose. The arrangement of the screw 14, however, at the same time provides an opportunity for the attachment of the front wheel fender. EMI2.2

It is clear that the type of securing described in no way prevents the steering from being set at different heights and furthermore that it can be attached to both old and new bicycles.

The device is simple and, because it is arranged inside the fork tube, it is preferable to the earlier and still used securing with safety forks, which connect the Kugeikopi hanger bar to the front axle.

PATENT CLAIMS: 1. Device on bicycles and similar vehicles to avoid accidents when the fork breaks, characterized in that the inside of the ball head bearing cm connecting element between the fork hub and the control (1) is provided without a fixed connection groove the inner fork tubes (6).

Device on bicycles and the like. According to claim l, in which the control attachment EMI2.3