Roller

摘要

The invention relates to a roller (1) having a wheel (2), which is accommodated in a housing, and a locking device (10, 17), the locking device (10, 17) being actuated by foot actuation of an actuating element (5) which is arranged so that it extends radially outwardly with respect to a vertical (V) that passes through a securing portion of the roller (1). To provide a roller which is advantageously formed with regard to locking by foot operation, it is proposed that an actuating portion of the actuating element (5) extends circumferentially at least far enough that a second foot actuation in the circumferential direction with respect to the vertical (V) may be carried out next to an area of the actuating portion by way of which a first foot actuation has been carried out.

主权项

1. A roller (1) having a wheel (2), which is accommodated in a housing, and a locking device (10, 17), the locking device (10, 17) being actuated by foot actuation of an actuating element (5) which is arranged so that it extends radially outwardly with respect to a vertical (V) that passes through a securing portion of the roller (1),
wherein an actuating portion of the actuating element (5) extends circumferentially 360° with respect to the vertical; and wherein the actuating element (5) moves completely vertically as a whole during an actuation; wherein a vertical portion (4) is a guide for the actuating element (5), and wherein a cylindrical projection (7) of a disk-like body of the actuating element (5) is for guidance on an outer surface of said vertical portion (4); and wherein there is a complete circumference extension, which is without an interruption; and wherein an action part (10) which acts on a running surface (9) of the wheel (2) is provided; wherein the actuating element (5) interacts with the action part (10) via a plurality of action cams (23) which engage in succession the action part (10) and are provided on a rotatably mounted cam wheel (24).