| 摘要 |
A portable cart mounted on wheels and having a frame with spaced upright walls mounted thereon. Portable trays are mounted between the spaced upright walls. Means secures the trays in detachable assembly with the spaced upright walls. An improved series of toolholders is mounted in assembly on the portable trays. Each of the toolholders has a central tubular section for receiving an elongated tool in supported assembly therewith. The toolholder has one of its sides provided with a recessed area. A clamp block is mounted in the recessed area between the toolholder and the tray. The clamp block and the recessed area have upright matching engaged surfaces slidable relative to one another. A thumb screw is mounted on the toolholder and extended through and engaged in threaded assembly with the wedge block. The wedge block is oriented and constructed so as to cause relative movement between the upright matching engaged surfaces to firmly wedge the wedge block and toolholder and tray in snug fixed assembly together. The turning of the thumb screw is effective to cause the relative movement between the inclined surfaces to either fixedly secure or to release the toolholder from the tray.
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