| 摘要 |
A moulded wheel made of plastic material for children's vehicle with pedal-driven wheels, consisting of two identical half-wheels (1a, 1b) separated by the symmetry plane perpendicular to the axis of the wheel and formed by a shell element produced by only one moulding process and by means of only one die and back draft, and including a hollow, peripheral tire portion (2) which has a semicircular radial section and is connected to a central disc portion (3) from which a short, hollow shaft (4) projects outwards and is integrated with a box-like radial arm (5) integrated in turn at its external end with a sleeve (6) which is provided with a hole (6a) having an axis parallel to the axis of the wheel, and in which the hollow shaft (7) of the pedal crank (8) is fitted, from the internal face of each half-wheel (1a, 1b) at least one guide pin (10) and one guide seat (11) projecting at positions diametrically symmetric with respect to the axis of the wheel and at least one fixing pin (12) and one housing (13) projecting at diametrically opposed positions. |
