Seed furrow closing and covering disk

Details Seed furrow closing and covering disk Seed furrow closing and covering disk

A - Human Necessities

01

C

A01C 5/06 (2006.01)

Patent

CA 2244513

The planer row unit has a unit frame with a front member that is adapted to be secured to a tool bar. A subframe is secured to the front member by parallel links. A furrow opener disk, a seed shoe and a gauge wheel are secured to the subframe. A cam plate supported by a spring to the rear of the seed shoe presses seeds into moist soil in the bottom of a seed furrow. A seed covering disc is supported by a covering disc shank to the rear and to one side of the furrow opener. The covering disc has a circular plate portion that faces downwardly and forwardly, moves loose soil from the furrow opener into the seed furrow and rotates about a central axis that extends downwardly from a horizontal plane. A flange, with notches extends radially outward and rearwardly from the outer periphery of the circular plate portion, rolls and slides along the surface and limits soil penetration by the covering disk.

Cette invention concerne un ouvreur de sillon dont le bâti comporte un élément frontal adapté pour se fixer à une barre porte-outils. Un faux cadre fixé à l'élément frontal au moyen de bielles parallèles porte un disque ouvre-sillon, un disque de réglage et un distributeur de semences. Une plaque à came supportée par un ressort à l'arrière du distributeur de semences pousse les graines dans le sol humide au fond du sillon. Un disque couvre-semence tournant autour d'un axe incliné vers le bas et monté sur un bras déporté latéralement à l'arrière du disque ouvre-sillon comporte une partie pleine circulaire orienté vers le bas et l'avant pour pousser dans le sillon le sol meuble repoussé précédemment par le disque ouvre-sillon. La partie pleine circulaire du disque couvre-semence comporte un rebord radial dentelé qui roule et glisse sur le sol pour limiter la profondeur de pénétration dans le sol.

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