| 摘要 |
The trainer is equipped with a mechanical inertia system which controls the lever braking mechanism of the trailer wheel consisting of hinged levers (6, 11) connected by a rotary pin (12) mounted between a one-sided expanding brake shoe (2) mounted on a load bearing shield (1) which is within the determinative arresters (14) mounted so that it can rotate on the bearing pin (3) of the trailer wheel. The rotary pin (12) is shaped like a crank lever; each of its arms (8) has one firmly mounted cog (13). Each of these cogs (13) has a spring catch (15) which is fixed on one of the two levers (6,11) of the brake mechanism. The auxiliary lever (6), equipped with at least one one-sided ball joint (?7) is in contact through one its parts with the releaser (5) of its straightness and buckling. The releaser (5) may consist of, e.g. one of the parts of the auxiliary lever (6) a sliding sleeve (18) with a fixed arm (19) with a longitudinal channel (20) containing a control pin (17) firmly connected to the axle arm (4) of the trailer and running in the support shield (1) of the brake shoe (2) through the created semi-circular channel (16).<IMAGE>
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