Boots – shoes – and leggings – Boots and shoes – Foot-supporting or foot-conforming feature
Patent
1988-01-07
1990-02-06
Chi, James Kee
Boots, shoes, and leggings
Boots and shoes
Foot-supporting or foot-conforming feature
36 84, 36 43, 36 93, 128581, A43B 714, A43B 326, A43B 1338
Patent
active
048979384
DESCRIPTION:
BRIEF SUMMARY
FIELD OF TECHNOLOGY
The present invention relates to a shoe which fits to a foot freely and to a foot bed which also fits to a foot freely.
BACKGROUND OF THE INVENTION
In a prior art shoe, the foot girth is fixed individually. However, the foot for using it differs significantly in the foot girth from person to person even for the same foot length. For this reason, recently, along with an enhancement of the consumer level, shoes with various kinds of foot girths are prepared for various kinds of foot lengths. However, for that purpose, from a manufacturing standpoint, it is necessary to prepare separate lasts and last fittings or the like for different foot girths even for a shoe having the same design, method of manufacture, material and foot length, and dealers are also required to retain a multiple of stocks, which is disadvantageous. In particular, in the case of selecting an appropriate shoe among these stocks, a determination is normally made by actually wearing shoes of various foot girths of the same foot length which is used as a reference, so that each time the product value of a shoe deteriorates.
On the other hand, if a shoe fits loosely on the foot, there is a conventional method for implementing adjustments by placing plate-shaped whole length socks or inserts one on top of another; however, according to this method, even though adjustments can be made for the foot height, no adjustments can be made for the foot width and foot bottom surface. Under this condition, a shoe must be worn with unpleasantness and the presence of a cause for health injury.
As set forth above, in accordance with the prior art method, even for the same foot length, ones having various kinds of foot girths must be prepared and glued, and it is the current situation that an objective cannot be attained even if it is tried to adjust the foot girth by a plate-shaped whole length sock. Besides, adjustments cannot be carried out for the reality in which the right and left human feet inherently differ.
And yet, in selecting shoes, since a determination is made by wearing those among the stocks which appear to be appropriate, the product value deteriorates each time and it is difficult to select perfect ones because the degree of fitness to the feet cannot be viewed from the exterior.
DISCLOSURE OF THE INVENTION
In order to solve the above-described problems, the present invention includes the following structure.
(1) In a combination of a shoe main body having a foot length of a standard size and a foot girth or inner circumference larger than a standard size and a whole length sock (insert) detachably mounted within said shoe main body and of a three dimensional shape having a foot girth altering function, said whole length sock of a three dimensional shape having a foot girth altering function including an appropriate number, each having a surface shape or contour which adapts to the shape of a foot bottom and having a differing thickness, or including a base portion having a surface shape which adapts to the shape of foot bottom and an appropriate number of auxiliary portions having a shape close to a plate-shape, which are used as overlying or underlying the base portion.
(2) A foot bed having a three dimensional shape which adapts to the shape of a foot bottom, on which a foot may be placed in advance to confirm the degree of fitness by observing visually and touching by a hand, said foot bed being inserted into a predetermined shoe having a foot length of a standard size and a foot girth larger than a standard size to thereby obtain a foot girth of a standard size, and said foot bed being manufactured and used in a set for several kinds (for example, four kinds of A, B, C and D) different in shape for each foot length, these foot beds mainly having different thicknesses at a central portion in the longitudinal direction and having three dimensional shapes substantially same in thickness at the front and rear portions.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 through 3 illustrate three embodiments of a shoe i
REFERENCES:
patent: 1370799 (1921-03-01), Egerton
patent: 2008207 (1935-07-01), Greenberg
patent: 4413430 (1983-11-01), Brown
patent: 4520581 (1985-06-01), Irwin et al.
patent: 4633877 (1987-01-01), Pendergast
patent: 4680877 (1987-07-01), Fink
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