DE482904C - Freewheel hub with backstep brake and multi-disc clutch - Google Patents
Freewheel hub with backstep brake and multi-disc clutchInfo
- Publication number
- DE482904C DE482904C DEW79626D DEW0079626D DE482904C DE 482904 C DE482904 C DE 482904C DE W79626 D DEW79626 D DE W79626D DE W0079626 D DEW0079626 D DE W0079626D DE 482904 C DE482904 C DE 482904C
- Authority
- DE
- Germany
- Prior art keywords
- brake
- backstep
- disc clutch
- hub
- freewheel hub
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L5/00—Brakes, or actuating mechanisms therefor, controlled by back-pedalling
- B62L5/10—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub
- B62L5/14—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub the brakes being of disc type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Freilaufnabe mit Rücktrittbremse und Lamellerlkupplung Es sind bereits Freilaufnaben mit Rücktrittbremse und Lamellenkupplung für Fahrräder bekannt, bei denen die rotierenden Lamellen mit Nasen in Nuten der Nabenhülse gehalten werden. Infolge von Werkstoff-oder Härtefehlern brechen bei starker Beanspruchung die Nasen der Lamellen leicht ab. Beim Erfindungsgegenstand wird dieser Übelstand dadurch vermieden, daß zum Mitnehmen der rotierenden Lamellen die innere Bohrung der Nabenhülse oval ausgebildet ist, also Nasen an den Lamellen nicht mehr erforderlich sind.Freewheel hub with coaster brake and multi-disc clutch There are already Freewheel hubs with coaster brake and multi-plate clutch for bicycles known at which the rotating lamellas are held in grooves in the hub shell with lugs. As a result of material or hardness defects, the noses break under heavy use the slats off slightly. With the subject matter of the invention, this is a disadvantage avoided that the inner bore of the hub shell to take along the rotating lamellae is oval, so lugs on the lamellae are no longer required.
Die beiliegende Zeichnung zeigt einen Längs- und einen Querschnitt durch die Freilaufnabe mit Rücktrittbremse.The accompanying drawing shows a longitudinal and a cross section thanks to the freewheel hub with coaster brake.
Der, Antreiber a besitzt einerseits die Gewinde für Kettenkranz und Gegenmutter, anderseits ein zweifaches Schneckengewinde, in welches die beiderseits gezahnte Antreibermutter b eingreift. Beim Anfahren wird der Antreiber a durch Kettenrad und Kette nach rechts gedreht, wodurch sich die Stirnzähne der Antreibermutter b, welche durch die Feder d gegen Verdrehung geschützt wird, mit denen des Mitnehmerringes c kuppeln, der mit der Nabenhülse g fest verbunden ist. Bei Unterbrechung der Tretbewegung wird der Antreiber a stillgesetzt, da sich infolge des drehenden Rades die Antreibermutter b vom Mitnehmerring c löst, wodurch ein einwandfreier Freilauf entsteht. Um die Bremswirkung zu erzielen, tritt man in bekannter Weise zurück, wodurch sich die Stirnzähne der Antreibermutter b mit denen des Bremsringes e kuppeln. Bei weiterem Zurücktreten wird durch die Zusammenpressung der rotierenden f gegen die feststehenden h Bremslamellen die Bremswirkung erzielt. Der Bremsdruck wird durch den Bremskonus und Bremshebel aufgefangen. Die mit der Nabe g rotierenden Lamellen f sind in ihrem Querschnitt dem ovalen Querschnitt der Nabenhülse g angepaßt, so rlaß sie einwandfrei auch bei stärkster Beanspruchung festgehalten werden, ohne Beschädigung zu erleiden.The driver a has on the one hand the thread for the chain ring and lock nut, on the other hand a double worm thread in which the driver nut b, which is toothed on both sides, engages. When starting, the driver a is rotated to the right by the sprocket and chain, whereby the front teeth of the driver nut b, which is protected against rotation by the spring d, couple with those of the driver ring c, which is firmly connected to the hub sleeve g. When the pedaling movement is interrupted, the driver a is stopped because the driver nut b is released from the driver ring c as a result of the rotating wheel, which results in a perfect freewheel. In order to achieve the braking effect, one steps back in a known manner, whereby the front teeth of the driver nut b couple with those of the brake ring e. If you step back further, the braking effect is achieved by compressing the rotating f against the stationary h brake discs. The brake pressure is absorbed by the brake cone and brake lever. The lamellas f rotating with the hub g are adapted in their cross-section to the oval cross-section of the hub sleeve g, so that they can be properly held even under the greatest stress without suffering damage.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW79626D DE482904C (en) | Freewheel hub with backstep brake and multi-disc clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW79626D DE482904C (en) | Freewheel hub with backstep brake and multi-disc clutch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE482904C true DE482904C (en) | 1929-10-09 |
Family
ID=7610859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW79626D Expired DE482904C (en) | Freewheel hub with backstep brake and multi-disc clutch |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE482904C (en) |
-
0
- DE DEW79626D patent/DE482904C/en not_active Expired
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