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Montage und Justage von Zangenbremsen (Quelltext anzeigen)
Version vom 29. Juni 2018, 13:00 Uhr
, 29. Juni 2018→Zangenbremsentypisierung: Bilder und Übersetzungsanfang
(→Siehe auch: ergänzt) |
(→Zangenbremsentypisierung: Bilder und Übersetzungsanfang) |
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==Zangenbremsentypisierung== | ==Zangenbremsentypisierung== | ||
Es gibt drei verbreitete Untertypen von Zangenbremsen: | |||
===Eingelenk-Seitenzug=== | |||
[[Datei:Caliper-600.png|right|Shimano Eingelenk-Seitenzugbremse]] | |||
Beide Bremsarme schwenken um eine zentrale Schraube, die die Bremse mit dem Rahmen oder der Gabel verbindet. Die Zughülle ist an einem Arm befestigt und der innere Zug ist mit dem anderen Arm verbunden. | |||
Die Bremsschuhe von Eingelenk-Bremsen bewegen sich nur wenig (abwärts) während sie verschleißen und folgen auch gut verzogenen [[Felge]]n. Jedoch kann das zentrieren schwierig sein, da jeder Arm einzeln von einer Feder zurückgezogen wird. | |||
===Zweigelenk-Seitenzug=== | ===Zweigelenk-Seitenzug=== | ||
[[Datei:BR0610.jpg|left|Shimano Zeigeleng-Seitenzugbremse]] | |||
The brake cable housing attaches to one brake arm and the inner wire, to the other. The mechanism is asymmetrical; one brake arm rotates around the centerbolt and the other, around a pivot above the wheel on the side opposite the cable. A cam connects the brake arms so they move by equal and opposite amounts. High mechanical advantage makes this type of brake desirable where reach is long, if the brake also is rigid. | The brake cable housing attaches to one brake arm and the inner wire, to the other. The mechanism is asymmetrical; one brake arm rotates around the centerbolt and the other, around a pivot above the wheel on the side opposite the cable. A cam connects the brake arms so they move by equal and opposite amounts. High mechanical advantage makes this type of brake desirable where reach is long, if the brake also is rigid. | ||
A dual-pivot sidepull centers especially well, due to the cam connecting the brake arms. There may even be a centering adjusting screw at the cam. If asked to track a warped rim, the brake rotates around the centerbolt, tending to loosen it. The brake arm on the side with the offset pivot migrates up toward the tire as it wears. | A dual-pivot sidepull centers especially well, due to the cam connecting the brake arms. There may even be a centering adjusting screw at the cam. If asked to track a warped rim, the brake rotates around the centerbolt, tending to loosen it. The brake arm on the side with the offset pivot migrates up toward the tire as it wears. | ||
===Mittelzug=== | ===Mittelzug=== | ||
Each brake arm rotates around a pivot on its side of the wheel, and above the rim. Both brake shoes migrate upward toward the tire as they wear. | [[Datei:BRdiacompe750.jpg|right|Dia Compe Mittelzugbremse]]Each brake arm rotates around a pivot on its side of the wheel, and above the rim. Both brake shoes migrate upward toward the tire as they wear. | ||
Centerpulls were popular in the 1960s and 1970s and are now somewhat popular for bicycles that require a long brake reach. These brakes use a transverse cable and require a frame-or fork-mounted cable hanger, and so are very similar to U brakes. See the article about U brakes for advice on cable installation and adjustment. | Centerpulls were popular in the 1960s and 1970s and are now somewhat popular for bicycles that require a long brake reach. These brakes use a transverse cable and require a frame-or fork-mounted cable hanger, and so are very similar to U brakes. See the article about U brakes for advice on cable installation and adjustment. | ||
==Reichweite== | ==Reichweite== | ||
