B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 1/14 (2006.01) B21D 1/12 (2006.01)
Patent
CA 2401930
A frame straightening apparatus is disclosed, using vertical posts positioned under the vehicle to push outward to straighten deformities in the frame. The apparatus is lightweight, strong and easily configurable from beside the vehicle under repair, without requiring increased ground clearance. The apparatus comprises a pair of floor rails bolted to, embedded within or forming part of the floor of the repair facility. The top of each floor rail has a partially closed channel into which a series of bolts can be inserted and slid longitudinally along the rail. The bolts can be used to quickly fasten and adjust a transverse U-shaped pushing rail and one or more transverse holding rails. The pushing rail has a series of bores along each leg, to which a U-shaped pivot base may be attached using pins. The pivot base is short enough to clear the undercarriage of a vehicle under repair positioned over the floor rails. A pushing post may then be positioned into place and quickly fastened into place at the top of the pivot base using pins. The pushing post pivots about the pivot base and, under the force of a ram assembly attached at the other end to the pushing rail, can apply pushing pressure on the frame of the vehicle under repair. Each holding rail permits a sliding post to slide along its length. One of the sliding posts may conveniently be short enough to clear the undercarriage of the vehicle under repair. A holding post may be positioned into place and quickly fastened into place at the top of the sliding post using pins. The holding post grips the exterior of the vehicle frame and is held in position by a chain attached at its other end to the holding rail. Diamond repairs may be effected using a set of diamond rails comparable to and abutting the floor rails in a transverse direction. Minor downward frame pulling repairs may be effected by the use of a pulley assembly attached to the pushing rail and a chain assembly. The apparatus may be conveniently mounted onto the bed of a towed platform to permit remote repairs.
Linquist Scott Allan
Smart & Biggar
LandOfFree
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