초록 ▼

A foldable push cart to carry a cutting machine comprised of a tabletop frame, a support frame and a telescoping rod; adaptable to any cutting machine; an extension bracket on each side of the cart works with built-in oblique push block and slide rod depending on the length and height of the individ

A foldable push cart to carry a cutting machine comprised of a tabletop frame, a support frame and a telescoping rod; adaptable to any cutting machine; an extension bracket on each side of the cart works with built-in oblique push block and slide rod depending on the length and height of the individual work piece; a hoisting cable controls work height and retraction of the cart; the telescoping rod provides self-locking safety function, and wheels are pivoted to a pair of cross legs.

대표청구항 ▼

What is claimed is: 1. A cutting machine push cart foldable and adaptable to any size of the cutting machine or similar machine, comprising: a tabletop frame, a support frame and a telescoping rod, the tabletop frame having multiple tracks, multiple locking plates, and multiple positioning plates,

What is claimed is: 1. A cutting machine push cart foldable and adaptable to any size of the cutting machine or similar machine, comprising: a tabletop frame, a support frame and a telescoping rod, the tabletop frame having multiple tracks, multiple locking plates, and multiple positioning plates, the multiple tracks being disposed on said tabletop frame parallel to one another, the multiple locking plates having a hole defined centrally therein, the locking plates being inserted into said trucks for locking said positioning plates onto said tracks, the tabletop frame including two pivot holders and two chutes provided on both sides at a bottom of the tabletop frame; the support frame including a first pair and a second pair of cross legs pivoted to each other at pivot point, a pulley provided at a top end of the second pair of cross legs, and two wheels pivotally attached to the lower end of the second pair of cross legs; the telescoping rod having both ends respectively pivoted to the first and the second pair of cross legs below said pivot point, the telescoping rod being extendable and retractable, a hoisting cable provided to control extension and retraction of the telescoping rod; the top of the first pair of cross legs being pivoted to the pivot holder of the tabletop frame; the pulleys at the top of the second pair of cross legs being inserted into the chutes. 2. The cutting machine push cart of claim 1, wherein the telescoping rod includes an outer tube, an inner tube inserted into the outer tube, a fastening device, two catches, a torsion spring and a tension spring; a positioning bit and a slot being provided at one end of the outer tube, multiple positioning slots being provided by the inner tube a claw extending downwardly from the fastening device, a limiting slot being disposed on the top end of the fastening device, and an eyelet being provided in the rear end of the fastening device; the torsion spring being provided between the positioning bit and the catches; the mobile end of the catch extending into the slot and the positioning slot; the fastening device being locked by the limited slot above the positioning bit of the outer tube; one end of the tension spring being hooked into the eyelet and the other end being hooked to a terminal of the hoisting cable. 3. The cutting machine push cart of claim 1, wherein an extension bracket is inserted into a hollow tube at each of both ends of the tabletop frame. 4. The cutting machine push cart of claim 3, wherein two extension rods are provided vertically to each hollow tube at the rear of the extension bracket and a roller is laterally provided at the tops of both extension rods; an oblique push block disposed in the extension bracket is drawn by a puller screw; both slopes of the oblique push block respectively upholding a slide rod; the slide rod sliding outwardly to hold against the body of the extension rod, and the extension rod being firmly secured to the extension bracket. 5. The cutting machine push cart of claim 1, wherein a handle is provided at a selected side of the tabletop frame. 6. The cutting machine push cart of claim 1, wherein each said positioning plate comprises a long slot defined therein and a locking hole is provided on both ends of the positioning plate. 7. The cutting machine push cart of claim 1, wherein a fixation bit is provided at a top end of the body of the outer tube to secure the hoisting cable. 8. The cutting machine push cart of claim 1, wherein a pneumatic lever is provided between the second pair of cross legs and the tabletop frame. 9. The cutting machine push cart of claim 1, wherein a safety handle is pivoted on a selected side of the tabletop frame and a latch is disposed on a selected leg of the first pair of cross legs. 10. The cutting machine push cart of claim 9, wherein the safety handle is linked to the hoisting cable and a pin; the hoisting cable being configured to control the extension and retraction of the telescoping rod, and the pin being restricted when the push cart is retracted.