Michael Jackson的舞鞋專利

從得知Michael Jackson是美國專利第5255452號（Method and means for creating anti gravity illusion）的發明人之後，發現，我還真是慢知慢覺，原來很多文章已經在討論此專利了，尤其是從傾斜45度的舞步開始...

這件專利的名稱是說創造反地心引力的幻覺的方法，主要範圍所揭露的就比較「接近現實」，是一種將鞋子與鉤子連結，使人可以站在舞台上，並超越人的重心而傾斜：

1. A system for engaging shoes with a hitch means to permit a person standing on a stage surface to lean forwardly beyond his or her center of gravity, comprising:

at least one shoe having a heel with a first engagement means, said first engagement means comprising a recess formed in a heel of said shoe covered with a heel slot plane located at a bottom region of said heel, said heel slot plate having a slot formed therein with a relatively wide opening at a leading edge of said heel and a narrower terminal end rearward of said leading edge, said recess being larger in size above said terminal end of said slot than is said terminal end of said slot; and

a second engagement means, detachably engageable with said first engagement means, comprising a hitch member having an enlarged head portion connected by a narrower shank portion to a means for raising and lowering said head of said hitch member above and substantially level with or below said stage surface, said head portion being larger in size than said terminal end of said slot and said shank portion being narrower than said terminal end of said slot, wherein said hitch member can be moved through apertures in said stage surface between a projecting position raised above said stage surface and a retracted position at or below the stage surface, and when said head portion of said hitch member is raised above said stage surface, said first engagement means can be detachably engaged with said projecting hitch member, thereby allowing a person wearing the shoes to lean forwardly with his or her normal center of gravity beyond a front region of said shoes, and maintain said forward lean.

上圖專利公報首頁的代表圖顯示舞鞋的底部，其中有個V型的溝槽，這個就是用來鉤住舞台上的機關，也就是下圖顯示的34，固定舞鞋，再利用身體的協調性與肌力，將身體可以固定成一個斜角


像這樣：


Ron