To provide a step ride-over mechanism used for a handcart.SOLUTION: A front wheel mechanism of a handcart according to the present invention is composed of a holder which rotatably supports a wheel, a second holder which is swingably provided on the holder and is provided with an auxiliary wheel at the lower end, and to which a tensile force that swings in a traveling direction is applied by a tension spring interposed between the holder and the second holder, and a third holder which comprises a pressing surface at the lower end, is provided behind the second holder, and is swingably mounted to the holder, to which a tensile force that swings with respect to the handcart traveling direction is applied by interposing a tension spring between the holder and the third holder, and whose lower end surface is located below a lower end surface of the second holder.SELECTED DRAWING: Figure 1
【課題】手押し車に用いられる段差乗り越え機構を提供すること。【解決手段】本発明に係る手押し車の前輪機構は、車輪を回転自在に支持するホルダーと、ホルダーに揺動自在に設けられるとともに下端に補助輪を設けた第二ホルダーであって、ホルダーとの間には介在された引っ張りバネによって進行方向に対して揺動する引っ張り力が付与された第二ホルダーと、下端に押圧面を備えると共に第二ホルダーの後方に設けられ、しかもホルダーに揺動自在に取り付けられた第三ホルダーであって、ホルダーとの間に引っ張りバネを介在させること手押し車進行方向に対して揺動する引っ張り力を付与され、かつその下端面が第二ホルダーの下端面よりも下部に位置する第三ホルダーとにより構成されている。【選択図】 図1
FRONT WHEEL MECHANISM OF HANDCART
手押し車の前輪機構
2021-09-13
Patent
Electronic Resource
Japanese
IPC: | B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS |
HANDCART AND FRONT WHEEL LIFTING UNIT FOR USE IN HANDCART
European Patent Office | 2018
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