Shoe structure and fabricating method of the same

1. Field of the Invention

The present invention relates generally to a shoe structure. More particularly, the present invention relates to a shoe structure which has an upper portion formed with a plurality of teeth-like extensions that penetrated the edge slits of an insole and covered by a peripheral shielding band.

2. Description of the Related Art

There are varieties of shoe structure that provides different function and fulfills specific purpose as being designed. Generally, the shoe structure includes an upper portion and a sole, wherein the upper portion covers the upper and sides of a foot, and the sole is connected to the lower end of the upper portion for supporting the foot of a shoe wearer.

Typically, the shape of the upper portion is determined by a last. While the sole is connected with the upper portion, a last is fitted therebetween for fixing the shape that will make the upper portion to be shaped according to the last so as to improve wearing comfortability.

A shoe structure and method as disclosed in U.S. Pat. No. 6,757,990 issued to Smith, includes an upper portion encapsulated the outer edge of insole and connected to an outsole. Another shoe structure disclosed in U.S. Pat. No. 2,434,024 issued to Vlasak discloses an insole having teeth-like extensions for penetrating the upper portion and round over the out edges of the insole and the midsole before it is connected with an outsole.

The upper portion of Vlasak is formed with a plurality of slits for permitting the teeth-like extensions of the insole passing therethrough, therefore the rain, water and some liquids may flow into the underside of the insole via the slits; this always cause the shoe become mildewed and shorten the durability of the shoe. Further, the Vlasak shoe structure needs more cost to apply the glue for bonding the insole, midsole and out sole in its due assembly process.

The present invention provides a new and improved shoe structure comprising: at least an upper, an insole and an outsole. The lower edge of the upper is formed with a plurality of teeth-like extensions, and the insole has a plurality of slits for allowing the teeth-like extensions to pass therethrough thereby to be glued and bonded with the outsole. The shoe structure further includes a peripheral shielding band which can be bonded and/or stitched at the lower end of the upper portion to avoid rain, liquid or water flowing into the underside of the sole via the slits and the teeth-like extensions.

The present invention also provides a method for fabrication of such a shoe. One embodiment of the method according to the present invention, includes the following steps:

1. forming a plurality of edge slits along the edge of an insole of a shoe;

2. forming a plurality of teeth-like extensions at the lower end of an upper portion of the shoe;

3. preparing a peripheral shielding band with a width;

4. leading the teeth-like extensions to pass through the edge slits;

5. bonding the teeth-like extensions beneath the underside of the insole; and

6. bonding the teeth-like extensions and the insole to an outsole; and

7. connecting the peripheral shielding band to the lower end of the upper portion to cover teeth-like extensions 21 and the edge slits 110.

As the shoe structure of the present invention does not include a midsole, this may improve the softness and comfortability of the shoe; further, due to the peripheral shielding band is covered on the edge slits, this would prevent the rain or water from penetrating into the sole via the edge slits. Accordingly, the method and the shoe structure can eliminate the drawbacks of the above-mentioned traditional shoes.

Additional features and advantages of the invention will be set forth in the description to follow, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims as well as the appended drawings.

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