To provide a spring-based assist device for a foot-stepping type carriage that can be retrofit regardless of a wheel initially provided on a hand-push carriage and does not require a motor or a battery.SOLUTION: A spring-based assist device includes: a base part 61; a foot-stepping type assist lever part 62 provided with an assisting foot-stepping part 62; and an assisting wheel support part 63 provided with an assisting wheel 63c as a road surface kicking part and provided with an assist operation guide pin 63d. The base part 61 is provided with assist force generating rear guide parts 61c, 61c for yielding assist force by guiding the assist operation guide pin 63d backward. When the assisting foot-stepping part 62b of a foot-stepping type assist lever part 62 is pushed down, the assist operation guide pin 63d is pushed out backward as a result of being guided by the assist force generating rear guide parts 61c, 61c while the assisting wheel support part 63 descends, and the assisting wheel 63c kicks a road surface to yield forward assist force.SELECTED DRAWING: Figure 7

    【課題】手押し台車に最初から設けられている車輪とは関係なく後付けすることができ、かつ、モータやバッテリ等も必要としない足踏み式の台車用バネ式アシスト装置を得る。【解決手段】ベース部61と、アシスト用足踏み部62bが設けられた足踏み式アシストレバー部62と、路面蹴り部としてアシスト用車輪63cが設けられと共に、アシスト動作ガイドピン63dが設けられたアシスト用車輪支持部63とを備え、ベース部61には、アシスト動作ガイドピン63dを後方へ案内してアシスト力を得るアシスト力発生用後方案内部61c,61cが設けられており、足踏み式アシストレバー部62のアシスト用足踏み部62bを押下げると、アシスト用車輪支持部63は下降しながらアシスト動作ガイドピン63dがアシスト力発生用後方案内部61c,61cに案内されることにより後方へ押し出され、アシスト用車輪63cが路面を蹴って前方へのアシスト力を得る。【選択図】図7


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    Title :

    SPRING-BASED ASSIST DEVICE FOR CARRIAGE AND HAND-PUSH CARRIAGE


    Additional title:

    台車用バネ式アシスト装置、および手押し台車


    Contributors:

    Publication date :

    2021-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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