Cross-bar tool mounting system

Abstract

A tool mounting frame incorporates a unique structure that secures the frame to a base at least at four points. The four-point connection ensures that the tool mounting frame will not move relative to the base. The frame has particular application in moving cross-bars, which are subject to vibration and stress from the weight of the parts they are moving. In a first embodiment, the frame incorporates two spaced locking portions that are interconnected by axially extending rails. The rails allow the mounting of tools at any location along the rail. The connection between the locking portions and the base includes pins at each lateral side of each of the forward and rear positions. In this way, a secure connection is provided. In a second embodiment, the four-point connection is provided by locking pins, and also by a roller fixed to the base which is received between two spring biased fingers. The spring biased fingers ensure that there will be no relative vertical movement between the roller and the frame, while ensuring a vertical clamping force. In another feature of this invention, an over-center handle is utilized to draw the frame into a locked position relative to the base. The inventive over-center handle has applications in structure other than that specifically disclosed in this application.