Appeal No. 2004-0729 Page 3
Application No. 09/957,202
1. An arm assembly for a cover of a truck, the truck having
a cab, the assembly comprising:
a base pivotably connected to the truck proximate a
top of the cab;
an intermediate segment pivotably connected to the
base;
an extension connected to the cover and pivotably
connected to the intermediate segment; and
a first stop fixed to a bed of the truck.
Lawson discloses a flexible cover 32 mounted on the trailer 14 of a truck. The
cover is connected to a sidewall 20 of the trailer on one side and has an elongated
frame 34 connected to the opposite side thereof. Frame 34 and cover 32 are movable
between a closed position as illustrated in Figure 4 and an open position as illustrated
in Figure 6. Frame 34 is slightly longer than the length of the sidewall 20 of the trailer
and has a lip 36 for locating the frame on the top edge of the sidewall 18 in the closed
position, as best illustrated in Figure 7. A pneumatic device 42 having a movable piston
rod 44 is mounted on a platform 41 mounted on end wall 22 of the trailer. The piston
rod 44 is movable between an extended position as illustrated in Figure 4, in which the
cover is in its closed position, and a retracted position as illustrated in Figure 6, in which
the cover is in its open position. A lever 46 has one end connected by pivot means 48
to platform 41 and its opposite end connected to the frame 34. The rod 44 is pivotally
connected by means 50 to lever 46. A second lever 52 is connected by pivot means 54
to platform 41 and a link 56 has one end connected to lever 52 and its opposite end
connected to lever 46 so that the two levers move together as rod 44 is retracted.
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007