| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a conventional electric foot warmer having legs at four corners that some persons must stretch their legs on the opposite sides of a leg of the foot warmer when it is used by a large number of persons or that the top plate is limited to square or rectangular shape. SOLUTION: Since a single post 3 supports an upper frame 2 and a bottom plate 4 has the same size as a top plate, as shown on Fig. 1, stability is sustained and since only one leg is employed, no person stretch one's legs on the opposite sides of the leg of a foot warmer when it is used by a large number of persons. Furthermore, the foot warmer can be used neatly in both Japanese- style room and Western-style room because the top plate is not limited to square shape.
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