A castor (1) has a securing device (V) for blocking running action and/or steering action of a wheel (2) mounted in a fork (3). A mounting of the fork (3) permits pivoting about a vertical axis (yy). A push rod (11) operates an integrally formed combination part (K) located at the fork for providing...http://www.google.de/patents/US6584641?utm_source=gb-gplus-sharePatent US6584641 - Brake and steering lock for castor
