PROBLEM TO BE SOLVED: To provide a spreader of joint sand and fertilizer, etc. including a conveyance belt capable of conveying spread materials reliably even when a spreading width is increased or a resistance load is exerted on the whole conveyance belt due to a reduced feed amount of the spread materials.SOLUTION: The spreader includes: a truck capable of travelling a hopper arranged on a rear side of the truck and storing spread materials such as joint sand and fertilizer, etc. a conveyance device for conveying to a rear side the spread materials supplied from the hopper through a lower outlet of the hopper and a spreading device for spreading the spread materials on the rear side of the conveyance device. The conveyance device is configured to drive a conveyance belt with a conveyor roller formed with a groove in a circumferential direction. A cog belt is stuck on a face on the conveyor roller side of the conveyance belt, the cog belt engaging with the groove in the circumferential direction of the conveyor roller in driving.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】 散布幅が広がったり、また、散布材料の送り量が少なくなって搬送ベルト全体に抵抗負荷が掛かっても散布材料を確実に搬送できる搬送ベルトを備えた目砂、肥料等の散布機を提供する。【解決手段】 走行可能な台車と、その台車の後方に設けられた目砂、肥料等の散布材料を収容するホッパーと、このホッパーの下部出口を通ってホッパーから供給される散布材料を後方に搬送する搬送装置と、この搬送装置の後方にて散布材料を散布する散布装置を備えた散布機であって、搬送装置が、周方向に溝を形成されたコンベヤローラーにより搬送ベルトを駆動するように構成され、搬送ベルトのコンベヤローラー側の面に駆動時にコンベヤローラーの周方向溝に嵌合するコグベルトを貼着したことを特徴とする散布機。【選択図】図6
