PROBLEM TO BE SOLVED: To provide a preliminary seedling stand structure in which stabilizing of supporting a preliminary seedling stand and increase in efficiency of an assembly operation can be attained.SOLUTION: The preliminary seedling stand structure includes: two or more preliminary seedling stand supports 28 erected to a body frame in a condition estranging mutually to a vehicle cross direction two or more support arms 29 which are prepared corresponding to each support 28, and supported by supports 28 so that rotation in a direction of a shaft circumference of a swinging spindle G of which a base end part is in alignment with a vehicle cross direction may become possible and a preliminary seedling stand which has a holder part 102 in which each support arm 29 can be intercalated, respectively at a back surface by the side of opposite with a preliminary seedling placing surface, wherein the support arm 29 is mounted at the preliminary seedling stand by making the support arm 29 intercalate in the holder part 102 from the free end part side, and making the preliminary seedling stand relatively move to the support arm 29, and the preliminary seedling stand is removed from the support arm 29 by making the preliminary seedling stand mounted to the support arm 29 relatively move from the base end part side to the free end part side along a longitudinal direction of the support arm 29.COPYRIGHT: (C)2012,JPO&INPIT【課題】予備苗台の支持安定化と組付作業の効率化とを図り得る予備苗台構造を提供する。【解決手段】車両前後方向に相互に離間した状態で機体フレームに立設された複数の予備苗台支柱28と、各支柱28に対応して備えられ、基端部が車両前後方向に沿う揺動支軸Gの軸回り方向における回動が可能となるように支柱28に支持された複数の支持アーム29と、予備苗載置面と反対側の裏面に各支持アーム29がそれぞれ挿入可能なホルダー部102を有する予備苗台とを備え、支持アーム29をその自由端部の側からホルダー部102に挿入させて予備苗台を支持アーム29に対して相対移動させることで予備苗台が支持アーム29に装着され、支持アーム29に装着されている予備苗台を支持アーム29の長手方向に沿って前記基端部の側から前記自由端部の側へ相対移動させることで予備苗台が支持アーム29から取り外されるようにした。【選択図】図3
