PROBLEM TO BE SOLVED: To provide a cover apparatus for a rotary tiller capable of lightening by extrusion molding with aluminum alloy and manufacturing at a low cost without having the number of components.SOLUTION: In the cover apparatus for a rotary tiller, a main cover 34 for covering the upper part of the rotary tiller part 5 is provided between a pair of right and left end members 37 and a rear cover 35 is vertically and swingably provided on a rear end edge of the main cover 34. The main cover 34 connects an upper and lower walls 45, 46, front and rear walls 47, 48, and between the upper and lower walls 45 and 46 and has a plurality of connecting ribs 49 arranged in parallel with a rotation center line of the rotary tiller part 5 over the right and left direction of the main cover 34, which are integrally formed by extrusion molding with aluminum alloy.COPYRIGHT: (C)2012,JPO&INPIT【課題】 アルミ合金で押出成形することにより、軽量化できると共に、部品点数が少なく、安価に製作できるロータリ耕耘機のカバー装置を提供する。【解決手段】 ロータリ耕耘部5の上方を覆う主カバー34が左右一対の端部部材37間に設けられ、主カバー34の後端縁に後カバー35が上下揺動自在に取り付けられたロータリ耕耘機のカバー装置であって、主カバー34は、上下壁45,46、前後壁47,48、及び上下壁45,46間を連結し、且つ主カバー34の左右方向に亘りロータリ耕耘部5の回転中心線と平行に配置された複数本の連結リブ49を有し、これらがアルミ合金による押出成形により一体成形されている。【選択図】図1
