OBJECTIVE capable of adjusting the height of the handle portion easily, providing a handle height adjustment mechanism in the wheelbarrow. . [Configuration] supports the handle portion, a plurality of holes in the pair of slide members disposed in the vertical direction provided, the slide member is bridged between a pair of connecting member for supportably that vertically moves the pipe member, a pair of long holes extending in the horizontal direction is provided, provided with a guide pin protruding from the long holes in the pipe member outside the pipe member is freely reciprocating end freely out of the hole, a pair Equipped with the insert member in the pipe member, turned slidably around the pipe member, descends in an oblique direction on the inner peripheral surface thereof, and a pair provided operation lever Yuru? can guide grooves guide pins I have configured Te. . [Selection Figure Figure 1.【目的】ハンドル部の高さ調整を容易に行うことが可能な、手押し車におけるハンドル高さ調整機構を提供すること。【構成】ハンドル部を支持し、上下方向に設けられる一対のスライド部材に複数の孔部を設け、スライド部材が上下方向に移動することを可能に支持する一対の連結部材間に架け渡されるパイプ部材に、水平方向に伸びる一対の長孔を設け、当該長孔からパイプ部材外部に突出するガイドピンを備えると共に、パイプ部材内を往復動自在であり端部が孔部に出入り自在な、一対のインサート部材をパイプ部材内に装備し、パイプ部材に摺動自在に巻回され、その内周面に斜め方向に下降し、ガイドピンを緩挿可能なガイド溝を一対設けた操作レバーを備えて構成した。【選択図】 図1