초록 ▼

The primary structural parts of the handle are two extruded telescopic tubes. A longitudinal rib on the smaller, inner tube slides in a groove in the rib on the larger, outer tube, preventing relative motion between the tubes. A box footplate is pivotally attached on a shaft to the free end of the o

The primary structural parts of the handle are two extruded telescopic tubes. A longitudinal rib on the smaller, inner tube slides in a groove in the rib on the larger, outer tube, preventing relative motion between the tubes. A box footplate is pivotally attached on a shaft to the free end of the outer tube with the axis of the shaft intersecting the long axis of the tubes and perpendicular to it. Rotation of the footplate is transferred by bevel gearing to a rod at the centers of the tubes which extends through a collet mechanism installed inside the smaller tube near its overlapped end. A lever and related linkage are attached to a fitting installed at the free end of the inner tube. The linkage connects the lever to the collect mechanism. Operation of the lever causes the collet to clamp onto the rod, thus locking the box footplate angular motion and the length of the handle. An auxiliary mechanism may be provided for locking the handle at any of a series of lengths.

대표청구항 ▼

[ I claim:] [1.]1. An adjustable length handle for flat finishers, said handle comprising:a box footplate,first and second telescopic tubes telescoped together,a lever anda collet mechanism,said collet mechanism being installed in said second tube,said lever being pivotally attached to said second t

[ I claim:] [1.]1. An adjustable length handle for flat finishers, said handle comprising:a box footplate,first and second telescopic tubes telescoped together,a lever anda collet mechanism,said collet mechanism being installed in said second tube,said lever being pivotally attached to said second tube,said box footplate being attached to said first tube by a pivot connection,said handle further comprising:first and second bevel gears,means for actuating said collet mechanism by operation of said lever, andmeans, including said first and second bevel gears, for interconnecting said box footplate and said collet mechanism such that actuation of said collet mechanism prevents rotation of said box footplate on said pivot connection.