To provide an autonomous travel type cleaner capable of miniaturizing a wheel unit.SOLUTION: In an autonomous travel type cleaner, wheels 2, 3 rotate by an input of a driving source, and includes a shaft 34 for supporting a load of a vehicle body, and speed reduction mechanisms 33, 35, 36, 37, 38 provided between the shaft 34 and the wheels 2, 3. The speed reduction mechanisms are constituted by a plurality of stages of speed reduction gears 33, 35, 36, 37, 38, they are arranged in a region equal to or less than an outer diameter dimension s3 of the wheels 2, 3 when viewed in a rotary shaft direction of the driving wheels 2, 3 rotated respectively by the drive of each travel motor. When viewed in the frontward/backward direction, part of or all of each of the speed reduction gears 33, 35, 36, 37, 38 constituting the speed reduction mechanism is positioned in a region of a width dimension s4 of the driving wheels 2, 3. The last speed reduction gear 38 reduces speed by the speed reduction gears 35, 36 using an inscribed trochoidal curve.SELECTED DRAWING: Figure 15
【課題】車輪ユニットの小型化が可能な自律走行型掃除機を提供する。【解決手段】本発明の自律走行型掃除機は、車輪2、3は、駆動源の入力により回転し、車体の荷重を支えるシャフト34と、シャフト34と車輪2、3との間に設けられる減速機構33、35、36、37、38とを備え、減速機構は、複数段の減速ギヤ33、35、36、37、38から構成され、各走行モータの駆動でそれぞれ回動される駆動輪2、3の回転軸方向に見て駆動輪2、3の外径寸法s3以下の領域内に配置され、前後方向に見て、駆動輪2、3の幅寸法s4の領域内に減速機構を構成する各減速ギヤ33、35、36、37、38の一部または全部が位置し、最終の減速ギヤ38は、内接するトロコイド曲線を用いた減速ギヤ35、36で減速している。【選択図】図15
AUTONOMOUS TRAVEL TYPE CLEANER
自律走行型掃除機
2020-05-14
Patent
Electronic Resource
Japanese
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