| 摘要 |
The boot consists of a shell having a lower part (1), on which is articulated an upper part (2, 3) which can pivot about a substantially horizontal pivot pin (4). This pivoting is limited by an elastic device (7) mounted between the upper part (2) and the shell (1). This elastic device comprises a rigid base (8), in the extension of which is mounted a bar of elastic material (15) having the same cross-section as the base. A tubular slide (19) slides on the base and prevents the elastic material from expanding when axial pressure is exerted on the latter. The elasticity of the device therefore varies according to the position of the slide (19). A means of axial guidance prevents the elastic material (15) from bending or buckling. |
