Inner band brake

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The inner band brake is a friction brake in which instead of the brake shoes, a brake band is pressed from the inside onto the brake drum. The inner band brake was mainly used on motorcycles .

In 1912, William S. Harley applied for a patent on the inner band brake, which was first installed in the 1912 Harley-Davidson X8 . Also in 1912, the manufacturer Indian combined the inner band brake with an outer band brake. 1917 received u. a. also H. N. Moore a patent on the inner band brake. After the First World War, the inner band brake was replaced by the classic drum brake or inner shoe brake. Few manufacturers, like Norbert Riedel with Imme , still use the principle of the inner band brake on motorcycles after the Second World War .

The inner band brake should - compared to the classic drum brake - have achieved a more even distribution of the braking effect in the circular arc of the drum. However, the theoretical advantage of allowing a larger braking surface to become effective compared to the internal shoe brake with the same brake drum is offset by the undesirable self-reinforcement.

Individual evidence

  1. ^ Kurt Mair: The motorcycle: technology - care - repairs. Heel Verlag, reprint of the 2nd edition 1937, ISBN 978-386852-307-2 , pp. 240–241
  2. ↑ US Patent 1094558
  3. ↑ Victor W. Page ': Early Motorcycles. Dover Publications, New York 1914, p. 415. Reprint 2004, ISBN 0-486-43671-3 .
  4. ↑ Victor W. Page ': Early Motorcycles. Dover Publications, New York 1914, p. 417. Reprint 2004, ISBN 0-486-43671-3 .
  5. ↑ US Patent 1300634
  6. ↑ Cheeky bee. ( Memento from January 2, 2013 in the Internet Archive ) In: Motorcycle . 22, 2003 (PDF file; 342 kB).
  7. ^ Kurt Mair: The motorcycle: technology - care - repairs. Heel Verlag, reprint of the 2nd edition 1937, ISBN 978-386852-307-2 , pp. 240–241
  8. ↑ Victor W. Page ': Early Motorcycles. Dover Publications, New York 1914, p. 416. Reprint 2004, ISBN 0-486-43671-3 .