Abrégé

The present invention relates to a tree root cutter which substantially increases the cutting force of a saw blade for cutting roots buried in the ground in order to fundamentally avert damage to crops, and which allows cutting chips generated in the process of cutting with the saw blade to be easily removed when lodging in gaps in the main body of the cutter. More specifically, the present invention is a tree root cutter having a main cutting body (100) itself having: a cover on the inside of which is provided a drive device and projecting on one side of which there is the rotational shaft of the drive device; a saw blade which is connected to and rotates with the rotational shaft; a support provided in an upward direction in the centre of the upper part of the cover; a step-on part which can be pressed by foot on the upper part of the cover; and a securing rod which is provided so as to be able to slide vertically at a side surface of the cover, wherein the tree root cutter comprises: a cutting guide member which is positioned between the saw blade and cover, is provided so as to rotate freely on the outer circumferential surface of the rotational shaft of the drive device, and is fastened to one side of the cover; and the cutting guide member comprises a cutting blade part closely attached to a portion in the direction of rotational advance of the saw blade in such a way as to facilitate cutting, and a movable block which can easily remove cutting chips lodged between the sawblade and the cover.

Classes IPC  ?

• A01D 23/02 - Machines à décolleter (décolleteuses) décolletage avant l'arrachage
• A01D 27/02 - Machines à double mécanisme, décolleteur et arracheur à outils fixes
• A01D 23/00 - Machines à décolleter (décolleteuses)

Abrégé

The present invention relates to an excavating screw for agricultural use, and more particularly, to an excavating screw for agricultural use comprising: a screw body arranged to prepare a hole of a predetermined depth into the ground to install facilities for cultivation of horticultural products, install pillars of vinyl house, or to cut kudzu roots; a transfer screw formed at the upper portion of the screw body to transfer and discharge stuffs produced from the excavation in an upward direction; and an excavating blade arranged beneath the transfer screw to excavate the ground in an easy way and scoop up earth and hard objects such as stones or the like onto the transfer screw in a stable fashion. The excavating screw of the present invention is configured in that the transfer screw is formed at the upper portion of the screw body, and the excavating blade is arranged at the lower portion of the screw body to excavate the ground. The excavating screw of the present invention comprises: the transfer screw having a screw blade arranged into a spiral shape swirling along a rod to transfer and discharge stuffs produced from the evacuation in an upward direction; and the excavating blade having a needle-shaped end cutting part formed at the lowest end thereof to dig into the center of the area to be excavated, a side cutting part which is arranged onto the end cutting part, and is upwardly sloped to dig into the side portion of the area to be excavated and scoop earth or stones in an upward direction, and a rotary cutting part which rotates in an arc outside the radius of rotation of the side cutting part to dig into the area.

Classes IPC  ?

• E02F 5/04 - Dragues ou engins de terrassement à usages particuliers pour creuser des tranchées ou fossés avec des tarières
• A01B 35/00 - Autres machines pour le travail de la terre

Abrégé

The present invention relates to a tree root cutter, and more particularly, to a tree root cutter which thoroughly and effectively cuts the roots of trees from beneath earth to wither the trees which might otherwise grow over together with kudzu root and cause damage to the crops. The tree root cutter of the present invention comprises: a saw blade which rotates by rotating power; a driver unit for driving the saw blade; a cover equipped with a cutter body which transmits rotating power and which has a support for allowing a user to hold the cutter, wherein said cover has a shape capable of supporting the saw blade and the driver unit, and digging into earth; a foot pressing unit arranged on the cover to press the cover; and a fixing post which slides in a vertical direction from the top of the cover and is fixed at the ground.

Classes IPC  ?

• A01D 23/02 - Machines à décolleter (décolleteuses) décolletage avant l'arrachage
• A01D 23/00 - Machines à décolleter (décolleteuses)
• A01G 23/06 - Déracinage ou arrachage d'arbresExtraction ou élimination de souches