Abstract:
A structure (1) for wheels with high mechanical resistance against impulse type loads comprising a plate (2) for fixing to a carcase to be supported, a fork (3) for the idle support of the actual wheel and suitable pivoting means (4) that are interposed between the plate (2) and the fork (3). The pivoting means (4) comprise a substantially vertical shaft (5) that is rigidly coupled to a substantially central hole (6) of the plate (2) and at least one bell-shaped housing (7), which is integral with the shaft (5) and which is associated with the portion of the shaft (5) that protrudes downwards from the plate (2). The bell-shaped housing (7) is provided with a seat (8) for respective rolling organs (9). The structure (1) also comprises at least one cover (10), which is counter-shaped with respect to the bell-shaped housing (7) and which faces it, and which is also provided with a seat (11) for respective rolling organs (9). The cover (10) is in turn stably associated with the fork (3) for its rotatable operative support.
Abstract:
A braking assembly, particularly for wheels of trolleys, bins and manually moved structures in general, of the type that can be associated with a support fork (A), for a wheel (B) of a structure (C) to be moved. The assembly (1) comprises at least one bracket (2) for supporting lever means (3) provided with a pedal (4), which in turn is articulated to the bracket (2) and is associated with a braking organ (5); the organ (5) is movable between two elastically stable configurations, respectively of disengagement from the wheel (B) and of locking it. The bracket (2) comprises an accommodation opening (6) for an appendage (4a) of the pedal (4), in the locked configuration. The lever means (3) comprise a closing fluke (7), which is located above so as to cover the opening (6) and which is movable with respect to the bracket (2), after coming into contact with the appendage (4a), in the locked configuration.