SU1521376A1 - Garden pruner - Google Patents

Abstract

The invention relates to handheld cutting tools for agricultural production and is intended to form and trim fruit trees, suitable shrubs, vineyards, ornamental plants, lawn mowing and various household purposes. The purpose of the invention is to increase the reliability and operational capabilities. Garden shears consist of two cutting knives 1 and 2 with handles 3 connected by a hinge 5, and a stopping and damping device made in the form of a spring clip 4 designed to lock the screw connection of the hinge and remove shock loads that occur on the handles at work. After setting the gap between the blades 1 and 2, the nut 6 is fixed with the flange bent upward side of the spring clip 4. The downward bent ends of the spring clip 4 firmly fix the bracket on the upper knife. The elastic elements 7 extinguish the shock loads that occur during cutting. 3 il.

Description

Sd N5

WITH

FIG.

The invention relates to handheld cutting tools for work, in agricultural production, and is intended to form and trim fruit trees, suitable shrubs, vineyards, ornamental plants, lawn mowing, and also for household purposes.

FIG. 1 schematically shows garden shears, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The scissors contain connected hinge-cutting knives 1,2c with knobs 3, a standing-porn-damping device in the form of a spring clip 4, worn on the axis of the bowstock 5. The shelves of the spring clip 4 are bent to form an S-shape. they are in contact with the sides of the upper knife and the nut 6 of the screw joint. The elastic elements 7 are associated with a spring clip 4 and are located between the internal non-working sides of the knives.

Garden shears work the following way.

When the nut 6 is rotated during the installation of the optimum gap between the knives 1 and 2, the upturned end of the spring bar contacts the side surface of the nut, while performing elastic reciprocating movements; when the gap is set, the nut 6 is fixed by the side surface or the entire plane of the upwardly bent end of the plank or by the walls of the hole 8 located at this end, and the nut surface formed by the two adjacent edges.

Bent down the ends of the spring bar kontakiruyut with the lateral non-working side of the knife, rigidly fixed the bar on this knife.

The elastic elements 7, located behind the axis of the joint, in the internal cavity between the lateral planes of the knives, when performing cutting movement (squeezing) with garden shears, contact these planes, and the shock loads that occur during cutting are extinguished.

This design improves operational performance due to the fact that the spring clip serves simultaneously to lock the nut of the hinge and to remove the shock loads when the handles come together.

Claims (1)

Invention Formula Garden shears containing cutting knives with handles that are hinge-shaped by means of a screw joint, and a stopping and damping device, are designed so that, in order to increase reliability and operational capabilities, the stopping and damping device is made in the form of a spring clip with two concentric holes under the axis of the joint, the sides of the shelf of the bracket placed under the nut are bent to form an S-shape and come into contact with the sides of the upper knife and the nut of the screw joint, and nnyh bracket with elastic elements arranged between the trailing side vnutrenni.mi knives.  rfffBepf yf ff Cpaa2 b 6 Г70верНу гу У srig.Z