PROBLEM TO BE SOLVED: To provide a device for cutting and seeding potatoes, which is capable of easily switching the cut-seeding and whole grain seeding of the potatoes, capable of eliminating working mistakes and performing the falling down of the seed potatoes more adequately.SOLUTION: The cut-seeding and whole grain seeding are switched by making a partitioning plate (A) having a cutting knife (A3) pass through a groove (B2) installed to cross at a right angle with a rotary arm shaft (B1), and engaging or releasing a hook lever (A1) with U-shaped hooks (B3, B4). On installing the partitioning plate (A), a plate like part (A2) formed at the partitioning plate by bending presses a bent rod (D4), and the bent rod (D4) presses a supplementary pressure plate (D3) to make the supplementary pressure plate (D3) open always. On removing the partitioning plate (A), the bent rod (D4) loosely penetrates the supplementary pressure plate (D3) and is pushed to the pressure plate side by a spring action. By the switching, in the case of the cut-seeding, cut pieces are regulated between a prescribed spacing with each other by the change of timing of escape from the support of right and left pressure plates (D1, D2), and in the case of the whole grain seeding, seed potatoes fall down adequately right under by the fact that the lower edges of the pressure plates are matched.COPYRIGHT: (C)2012,JPO&INPIT【課題】切断播種・全粒播種を容易に切り替える。【解決手段】切断用ナイフ(A3)をもつ仕切り板(A)を回転アーム軸(B1)と直交して設けた溝(B2)に通し、フックレバー(A1)をコ字形のフック(B3,B4)に係脱させて、切断播種・全粒播種を切り替える。仕切り板(A)の取付けの際、仕切り板に曲成された板状部分(A2)が曲棒(D4)を押圧し、曲棒(D4)が補助圧板(D3)を押圧して常時補助圧板(D3)が開く。仕切り板(A)を取り外した時は、曲棒(D4)は補助圧板(D3)と遊貫され、バネの作用により、圧板側に押される。この切替により切断播種の場合は左右の圧板(D1,D2)の支持から脱するタイミングがかわることで切片同士が所定の株間に規制され、全粒播種の場合は圧板の下縁が揃うことで的確に真下に落下させる。【選択図】図3
