Patent ID: 6012547
Filing Date: 2000-01-11
Classification: B60P,B64F,B65G,B66F

Abstract:
A platform, havinga deck,a handrail, andmeans pivotally mounting the handrail to the deck for movement in opposite rotational directions between upright and inclined positions with respect to the deck, said mounting means includinga first arm pivotally connected at one end to the deck,a second arm pivotally connected at one end to the handrail,the opposite ends of the arms being pivotally connected to one another to form a parallelogram linkage which maintains the handrail and first arm parallel as the handrail moves between upright and inclined positions,a first link pivotally connected at one end of the deck,a second link pivotally connected at one end to the first arm,the opposite end of the first link being pivotally connected to an intermediate portion of the second link so that the second link is swung to a first position in which a face thereon engages a face on the first link to limit further rotational movement in a first rotational direction as the handrail is moved its upright position, andmeans applying a yieldable force to urge the pivotal connection of the arms to one another as the handrail is swung between its upright and inclined positions.