PROBLEM TO BE SOLVED: To provide a handcart including a novel mechanism allowing front wheels to run on a step and enhancing mobility.SOLUTION: A vehicle body 10 of the handcart includes: front wheels 11 and rear wheels 12. A getting-over-step wheel 20 supported on a base 21 on an undersurface of the vehicle body 10 can change its position forward/backward, and is exerted with a forward biasing force by a biasing force exertion device 24 at all times. The getting-over-step wheel 20 sticks to outside of the base 21 at all times, and is located at a front side of the front wheel 11 even when being retreated maximally. A rotation transmission part 26 is arranged at a rear part of the getting-over-step wheel 20, and the rotation transmission part 26 is connected to an operation force transmission part 31. The getting-over-step wheel 20 retreating against the biasing force is received by the rotation transmission part 26. At this time, if operation force is applied to the operation force transmission part 31, rotation is generated in the rotation transmission part 26, and getting-over-step rotation is generated in the getting-over-step wheel 20 received by the rotation transmission part 26.COPYRIGHT: (C)2016,JPO&INPIT【課題】前輪を段差に乗り上げさせるための新規機構を備え、移動性がさらに向上した手押し車を提供する。【解決手段】手押し車の車体10は前輪11と後輪12を備える。車体10の下面のベース21に支持された段差乗り越え車輪20は前後に位置変更可能であり、附勢力付与装置24により常時前方への附勢力を与えられている。段差乗り越え車輪20は常にベース21の外側にはみ出し、最大限後退したときにも前輪11より前方に位置する。段差乗り越え車輪20の後方には回転伝達部26が配置され、回転伝達部26は操作力伝達部31に連結される。附勢力に抗して後退した段差乗り越え車輪20を回転伝達部26が受け止める。ここで操作力伝達部31に操作力が加わると回転伝達部26に回転が生じ、回転伝達部26に受け止められている段差乗り越え車輪20に段差乗り越え回転が生じる。【選択図】図1
