KR860000130A - All-around offset type cutting shears with full width pre-cutter - Google Patents

Abstract

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Description

All-around offset type cutting shears with full width pre-cutter

As this is a public information case, the full text was not included.

1 is a side view showing an embodiment of an offset type cutting scissors of the present invention showing that it is in an open state, a side view showing part of the cutaway, FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 2, and FIG. Side view showing the upper cutting blade of the offset cutting shear shown in FIG.

Code description for main part

10... Cutting shears, 12,14... Cutting blade, 16... Main pivot bolt, 18,20... Handle, 22.. Plate, 24... New, 26. Pivot bolt, 40,42... Pivot bolt, 70,72... Cutting surface, 88... . Wedge-shaped cut, 92,94... Pivot Boss.

Claims (12)

First and second cutting blades having first and second planar pivot bosses, first and second cutting planes offset with respect to their planes, and opposite shaft handle means for rotating the upper and lower cutting blades. It consists of pivot means for rotatably connecting the upper and lower cutting blades about an axis perpendicular to the pivot boss so that the first and second cutting surfaces can be moved between the open position and the closed position to cut the plate therebetween. In the universal offset cutting scissors for cutting plate and wire rod, the cutting scissors have a portion extending upward from the first pivot boss to form a wedge-shaped cut of the inclined wire cutter, the first cutting surface is a wedge It is possible to grind together with the die cut, the upwardly extending portion of the lower cut blade constitutes an opposite cut face for the wedge cut, the pivot boss and the cut face cut While the surface can be polished to sharpen it again, the offset between the first and second pivots used as the reference surface is retained and the opposite face of the wire cutter is acting on the front width of the wedge-shaped cutout during cutting. A universal offset shear, characterized in that the cutting of the wire rod is unhindered and the cutting scissors can also cut small circles of at least about 2.0 inches to 2.5 inches in diameter. The upper portion extending from the first pivot boss is a support portion, and the wire cutter is to be used simultaneously as a restriction stop for the movement of the first and second cut surfaces of the upper and lower cutting blades. Cutting shears for pinch-type catty bars with supporting bases and wedge-shaped cutouts. 3. The scissors according to claim 2, wherein the wedge-shaped cuts comprise about 40-60 ° cut edges. 4. The scissors according to claim 3, wherein the wedge-shaped cuts are made of cut edges of about 50 degrees. 5. A three point toggle connection structure is formed between the opposing handle means and the cutting blade according to claim 4, wherein the opposing handle means comprise pivot coupling between the opposing handle means and the upper and lower cutting blades therebetween. When the blade is closed, the pivot joint angle formed by the pivot joint and pivot joint is about 115 ° -120 °, and the pivot joint is approached to the dead point between the pivot joints, so that strong cutting force can be obtained. Cutting scissors on a bar. 6. The shear of claim 5 wherein the pivot angle is about 117 degrees. The wire cutter according to claim 1, wherein the wire cutter is used as the cutting type cutter by forming the cutting edge portion opposite to the wedge-shaped cutting portion so that the upward extension of the first pivot boss can be cut past the opposite cutting edge portion. Cutting shears. 8. The shear scissors of claim 7 wherein contacts are provided on both handle means to provide a restriction stop for movement of the first and second cut surfaces of the saw blade. 9. The shear scissors of claim 8 wherein the cut edge angle of the wedge-shaped cut is about 40 ° -60 °. 10. The shear scissors of claim 9 wherein the cut edge angle of the wedge-shaped cutout is about 50 degrees. The three-point toggle connection configuration is formed between the two handle means and the cutting blade, wherein the opposite handle means includes a pivot connection between the pivot coupling and the upper and lower cutting blades therebetween. And the cutting scissors of the bar made by the cutting scissors as the angle formed by each pivot engagement and pivot connection when the cutting blade is in the closed position approaches the dead point between the pivot connections. 12. The scissors shears of claim 11 wherein the pivot engagement angle is about 117 degrees. ※ Note: The disclosure is based on the initial application.