PROBLEM TO BE SOLVED: To provide a carrying device 10 capable of an article while a cover 21 is stably put on each retainer 11, even if difference such as thermal expansion or elongation set is generated between a carrying chain 12 of a retainer conveyer 1 and a carrying chain 22 of a cover conveyer 2.SOLUTION: A layout interval P2 between the covers of the cover conveyers 2 is made to be larger than a layout interval P1 of the retainers of the retainer conveyer 1. Feeding length per unit time of the carrying chain 22 by an upstream side cover conveyer sprocket 4U and a downstream side cover conveyer sprocket 4D is made to be larger than feeding length per unit time of the carrying chain 12 by a driving sprocket 51 coupled to a driving motor 5, by the same ratio as the ratio P2/P1. Therefore, in a conveyer approaching zone R, the carrying chain 22 of the cover conveyer 2 is slackened as compared with the carrying chain 12 of the retainer conveyer 1.COPYRIGHT: (C)2010,JPO&INPIT【課題】リテーナコンベヤ1の搬送チェーン12と蓋コンベヤ2の搬送チェーン22との間に熱膨張や永久伸び等の差が生じても、蓋21を各リテーナ11上に安定に被せた状態で物品を搬送することができる搬送装置10を提供すること。【解決手段】蓋コンベヤ2の蓋同士の配設間隔P2をリテーナコンベヤ1のリテーナ同士の配設間隔P1よりも大きくし、上流側蓋コンベヤスプロケット4U及び下流側蓋コンベヤスプロケット4Dによる搬送チェーン22の単位時間当りの送り長を、駆動モータ5に連結された駆動スプロケット51による搬送チェーン12の単位時間当りの送り長よりも比率P2/P1と同じ比率で大きくすることによって、コンベヤ接近区間Rにおいて、蓋コンベヤ2の搬送チェーン22をリテーナコンベヤ1の搬送チェーン12よりも弛ませるようにした。【選択図】図1
