PROBLEM TO BE SOLVED: To solve the problem that as seedling culture boxes applied with a series of sowing work are stacked when the seedling culture boxes are stopped, an impact is applied, and bed soil and covering soil may be displaced, thus causing an obstacle to efficiency and high speed.SOLUTION: The seedling culture boxes conveyed by a conveyance roller 16 are abutted on a leaf spring member 26 at a conveyance terminal end E. The leaf spring member 26 smoothly absorbs the impact by sliding and moving a lower end thereof on a fixed member and elastically deforming its curved part. When lifting the seedling culture boxes by lifting mechanisms 27, 30, 31, the leaf spring member biases the seedling culture boxes so that they are abutted on a front end regulating plate 21 over an entire lifting stroke.COPYRIGHT: (C)2010,JPO&INPIT【課題】一連の播種作業を施された育苗箱を積重ねるため、育苗箱を停止する際に衝撃が作用し、育苗箱の床土、覆土がズレることがあり、効率化、高速化の障害となっている。【解決手段】搬送ローラ16により搬送される育苗箱は、搬送終端部Eで板バネ部材26に当接する。板バネ部材26は、下端部を固定部材に摺動して移動しつつその湾曲部を弾性変形して、上記衝撃を滑らかに吸収する。持上げ機構27,30,31により育苗箱を持上げる際に、全持上げストロークに亘って板バネ部材は育苗箱を前端規制板21に当接するように付勢する。【選択図】図2
