WINDSHIELD WIPER 的一小段英文

wang9813

WINDSHIELD WIPER
EXTENSION MECHANISM
Klaus A Michalke assigned to Chrysler Motors
Corporation
An improved windshield wiper system having an
articulated wiper arm assembly, in the form of a
wiper arm and a drag arm, which incorporates a
three-link parallelogram arrangement wherein a
greater blade wiping area is attained at selected
portions of the windshield. A portion of the
outer end of the wiper arm is pivotally connected
to one end of each of a pair of parallel outer and
inner links. The other ends of the pair of links are
pivotally connected to a blade support link such
that the blade is maintained parallel with the
wiper arm. The free end of the drag arm is
pivotally connected to an intermediate point on
the inner link. Consequently, the blade is
positioned at a radially minimum location when
the blade is at its rest or park position and a ra-
dially maximum location upon the blade traver-
sing a predetermined arc.

daobike

很好的资料，学习一下！