FR2812791A1 - DEVICE FOR PRUNING HEDGE OR MASSIVE TREES AND SHRUBS USING A COUNTERWEIGHT SYSTEM - Google Patents

Abstract

Device for pruning and pruning trees and shrubs arranged in hedges and beds. Using a counterweight system. The invention relates to a device for using a pruning tool, whether it be a heat or electric motor hedge trimmer, a chainsaw, or others. It consists of a tube with right angle (1) on which two pulleys (3) are fixed. A rope or cable (4) connects the hedge trimmer to the counterweight through the pulleys (3). The counterweight is guided in a plastic protective tube (9). The right angle tube (1) fits into the tube (2) and allows 360 degree rotation of the tube (1). The tube (2) is drilled in several places (11) to raise or lower the tube (1). The tube (2) is attached to a carriage (7) to move the device.The device according to the invention is particularly intended for the pruning and pruning of trees and shrubs arranged in hedges and clumps in order to facilitate the carrying of the device. 'pruning tool.

Description

DESCRIPTION

  the present invention relates to a device designed and imagined to facilitate the pruning of trees and shrubs arranged in hedges or in clumps on parks, gardens and green spaces. The thermal engine hedge trimmer is heavy to lift and carry for pruning work. This device according to the invention relieves the effort of carrying the motor hedge trimmer by considerably reducing its weight by the principle of counterbalancing the weight of the motor hedge trimmer has a counterweight. This also applies to work by

  electric chainsaw and hedge trimmer.

  Here is its operating principle shown in the attached drawing A small diameter round tube (1) welded at right angles to which are fixed two pulleys (3) A thin rope or cable (4) passes through the pulleys (3) and connects the counterweight (5) to the motor hedge trimmer (6) which allows easy movement back and forth from bottom to top and from left to right of the motor hedge trimmer (6). Pruning work is done without the constraint of the weight of the motor hedge trimmer (6) and with flexibility, skill, and maneuverability even when working 1 5 in height, for example on a stepladder The round tube (1) fits in another round tube (2) with a larger diameter which allows a complete 360 rotation of the tube (1) and consequently of positioning the arrow of the tube (1) above the hedge to optimize the carrying of the motor hedge trimmer ( 6) and

  be able to cut over several meters without having to move the device.

  2.0 The tube (2) is fixed on a carriage (7) of any shape with four wheels

(12) (13)

  Two inflatable wheels (12) equipped with brakes for safety and two swivel wheels (13) for easier movement and guidance of the device The trolley (7) can also be equipped with a slide for its movement in the case

wheel removal ((12) (13).

  A handle (10) is attached to the tube (2) to move the device.

  A large diameter plastic tube (9) is attached to the tube (1) to prevent

  balancing of the counterweights while allowing the complete rotation of the boom (1).

  The tube (2) will be drilled in several places (11) to be able to introduce a support pin, this in order to raise or lower the tube (1) according to the height of the hedge to be cut.

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  The base of the trolley (7) will be fitted with a metal grid (8) to make a small platform so that the hedge trimmer (6) or the counterweight (5) can be installed.

  stabilizing masses can be installed there.

  3 5 A base (14) for tilting and raising the tubes (1) and (2) could be added to the carriage (7) in order to better position the arrow of the tube (1) according to the terrain relief. The device comprising (1) (2) (6) (5) (3) (4) (9) (11) can optionally

be fixed on another support.

  The device will be removable for easy transport.

  The device according to the invention is particularly intended for pruning trees and shrubs arranged in hedges or in clumps. This work by this process becomes much less tiring and necessarily less dangerous especially when one has to prune in height using a stepladder or other, the imbalance caused by the weight of the hedge trimmer motor (6) becomes

  4 5 practically zero and therefore less risk of falls.

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Claims (4)

  1 - Device for pruning or pruning trees and shrubs by considerably reducing the carrying effort of the working tool (6) characterized in that it comprises a counterweight system consisting of pulleys (3) and a counterweight (5) connected by a rope   (4) fixed to a boom (1) possibly extendable.   2- Device according to claim 1- characterized in that the tube (1) is rotatable   in its support (2) and includes a protection (9) against the weight (5).   3- Device according to claims 1- and 2- characterized in that the tube (1) is   adjustable in height (11) in the vertical tube (2).   4- Device according to any one of the preceding claims, characterized in   that the tube (2) is fixed to a tilting base (14).   - Device according to any one of the preceding claims, characterized in   that the tube (2) and the base (14) are fixed on a carriage (7) equipped with a grid (8) and provided wheels or slides.