To provide a household tire replacement auxiliary device allowing tire detachment/attachment to be done safely, quickly and easily, so as to assist a heavy load work of replacement of snow tires before and after winter season in a snowy region.SOLUTION: A pair of freely rotatable rollers 9 rotatably supporting a tire is arranged in U shape, and ascending/descending arms 8 supporting the rollers are link-interlocked to ascend/descend while turning at the same angle. Each turning ascend force is generated only with a tensile force of a tension spring 4 pulled by a swing operation lever 3 so as to lift from the ground a tire laid on the ground and supported with the two rollers. The features of the invention is: that a lift force generated by an elastic body tensile force counterbalances weight of the tire; and that ascend/descend conditions can be finely adjusted with a very small external force; and that an operator can easily rotate, ascend/descend and move the tire simultaneously forward/backward, to right/left while holding the tire with both hands, to quickly perform detachment/attachment works. As the greatest advantage of the invention, a main manual work becomes an operation of pushing up a lever 3, with no half-sitting work, thereby, enabling prevention of back pain.SELECTED DRAWING: Figure 9
【課題】雪国での冬季前後のスノータイヤの交換作業は重負荷作業である。家庭用の、安全迅速軽快にタイヤ着脱可能なタイヤ交換補助機を提供する。【解決手段】タイヤを回転自在に支持する一対の遊転ローラー9をコの字状に配置しこのローラーを支持する昇降腕8がリンク連動し同角度昇降旋回を行う。旋回上昇力は揺動操作レバー3にて引張られた引張りスプリング4の張力のみで発生させ、地表に置いたタイヤは2本のローラーに支持され地表より浮揚する。特徴は弾性体張力で発生した揚力はタイヤを無重量化せしめ、尚且つ軽微な外力で昇降微調整が可能な点にあり、作業者は両手でタイヤを把持しながら、回転、昇降、前後左右移動動作を同時進行で軽快に行いながら着脱作業が迅速に実施できる。人力作業はレバー3を押し下げる動作が主体であり、中腰作業が無く腰痛を予防できる点が最大利点となる。【選択図】図9
HOUSEHOLD TIRE REPLACEMENT AUXILIARY DEVICE
家庭用タイヤ交換補助機
2019-09-19
Patent
Electronic Resource
Japanese
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |