TRACTION DEVICE

To provide a traction device capable of pulling a work vehicle stably in the traction device coupling a work device to the work vehicle.SOLUTION: A traction device coupling a work vehicle to a work vehicle includes: a forked first connection rod which expands to both work vehicle sides and in which two end parts on the expansion side are pivotally connected to the work vehicle; a second connection rod which expands from a first connection rod side to the work device side and in which an end part on the work device side is pivotally connected to the work device; and an intermediate connection part which connects end parts on the work vehicle side of the first connection rod and the second connection rod. Between the first connection rod and the intermediate connection part, a roll spindle extending from the work device side to the work vehicle side is provided, and at least one of the first connection rod and the intermediate connection part is rotatably connected to and supported around the roll spindle relative to the roll spindle.SELECTED DRAWING: Figure 4 【課題】作業車両に作業装置を連結させる牽引装置において、作業装置を安定して牽引可能な牽引装置を提供する。【解決手段】作業車両に作業装置を連結させる牽引装置であって、作業車両側へ拡開し、当該拡開側の２つの端部が作業車両に枢支連結される二又状の第１連結ロッドと、第１連結ロッド側から作業装置側に向かって延在し、当該作業装置側の端部が作業装置に枢支連結される第２連結ロッドと、第１連結ロッドと第２連結ロッドの作業車両側の端部とを連結する中間連結部と、を備え、第１連結ロッドおよび中間連結部相互間に、作業装置側から作業車両側に向かって延在するロール支軸が設けられ、第１連結ロッドおよび中間連結部の少なくとも一方は、ロール支軸に対して当該ロール支軸回りに回動可能に連結支持されている。【選択図】図４