PROBLEM TO BE SOLVED: To provide a traveling carriage capable of easily getting over a small upward step while an operational state when normally travelling forward.SOLUTION: In a traveling carriage, a front wheel diameter R, an auxiliary wheel diameter r, center-to-center distance L between an auxiliary wheel 16 and a front wheel 14 and an attachment angle ψ of the auxiliary wheel 16 to the front wheel 14 are configured so that by a principle of leverage where an input point of force of a holding part 11a is defined as a force point and a ground point with an upper face of an upward step 30 of the auxiliary wheel 16 is defined as a supporting point, when force Fx for travelling forward a base substance 10 is input to the force point, force for lifting the front wheel 14 to a height position where the front wheel 14 can get over the upward step 30 acts related to a point of action of the force capable of lifting the front wheel 14.SELECTED DRAWING: Figure 3
【課題】通常の前方走行時の操作状態のままで容易に上り段差を乗り越えることが可能な走行台車を提供する。【解決手段】把持部11aの力の入力点を力点とし、かつ補助輪16の上り段差30の上面との接地点を支点としたてこの原理によって、基体10を前進走行させる力Fxを力点に入力したときに、前輪14を持ち上げ可能な力の作用点に対して、前輪14を上り段差30を乗り越え可能な高さ位置まで持ち上げる力が作用するように、前輪径R、補助輪径r、補助輪16と前輪14との中心間距離L及び前輪14に対する補助輪16の取付角度ψを構成する。【選択図】 図3
TRAVELING CARRIAGE
走行台車
2016-03-17
Patent
Electronic Resource
Japanese
IPC: | B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS / A61H PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY , Geräte für die physikalische Therapie, z.B. Vorrichtungen zum Lokalisieren oder Anregen spezieller Reflexpunkte am Körper |