JPH08214907A - Footwear structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an impermeable shoe. SOLUTION: This shoe is provided with a bottom 12 and an upper 14. The bottom 12 supports the lower edges of a layer forming the upper 14 against a lasting inner bottom 26, and the upper 14 is provided with an inner lining 16, an intermediate filler 18, an outer coating 22, and an impermeable film 20 interposed between the inner lining 16 and the outer coating 22. The impermeable film 20 is provided with an impermeable element hermetically fixed to the lasting inner bottom 26 or a lower peripheral edges hermetically connected to a strip 30.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an impermeable (ie, waterproof) footwear structure. This application includes both regular footwear and more specifically sports footwear, although the following description is considered by way of example for sports footwear.

[0002] The description of the present specification is based on the priority of the present application, the Italian utility model registration application No. TV94 U.
It is based on the description in the specification of No. 000060 (filed on November 23, 1994), and by referring to the number of the Italian utility model registration application, the description content of the Italian utility model registration application Shall form part of this specification.

[0003]

BACKGROUND OF THE INVENTION This type of footwear has a sole and an upper (also called upper) which includes an inner lining, an intermediate padding and an outer covering (leather or synthetic material).

These footwear must meet certain basic requirements, including the fact that they must be impermeable to water, that is, they must not allow water to penetrate into the interior of the footwear. .

It is already known to produce sports footwear. It has a film of impermeable material interposed inside the outer covering, more particularly between the intermediate stuffing and the inner lining. The film extends throughout the footwear and thus also between the lasting insole and the anatomical insole, thus forming a kind of sock.

The prior art, as an alternative, proposes solutions. That is, the impermeable film is provided only in the area of the upper of the footwear and is discontinuous in the area of the attachment edge of the lasting insole of the footwear.

[0007]

However, such a solution has the disadvantage that the footwear is not impermeable. Because the lower part of the upper (ie
This is because the water soaked from the bottom and the portion between the bottom of the lasting bottom) comes into contact with the end portion of the impermeable film, further advances to the inside, and soaks into the lining.

In order to avoid this disadvantage, impermeable footwear of the type mentioned above is conceived and is the subject of the present invention.

[0009]

One form of the present invention comprises a bottom and an upper, the bottom holding a lower edge of a layer forming the upper against a lasting insole, and the upper having an inner lining, In an impermeable footwear structure of the type comprising an intermediate padding, an outer covering and an impermeable membrane interposed between an inner lining and an outer covering, the impermeable membrane being sealed to the lasting insole. A footwear structure having a lower peripheral edge which is hermetically connected to a tightly secured impermeable element or strip.

The impermeable element may be a strip having a first end hermetically secured to the insole of the lasting.

The impermeable strip may have a second end rigidly fixed to the bottom.

The impermeable membrane is preferably interposed between the filling and the outer covering.

The lower peripheral edge of the impermeable membrane is preferably directly and sealingly secured to the impermeable strip.

In another form of the invention, a sealing element of impermeable material is interposed between the lasting insole and the bottom.
It has an inner peripheral edge that is hermetically secured to the impermeable strip and a forked outer peripheral edge that defines two ends that clamp at least the lower end of the impermeable membrane therebetween. It is a footwear structure characterized by that.

The outer peripheral edge of the sealing element may tightly clamp the lower end of the inner lining, padding and impermeable membrane therebetween.

It will be readily appreciated that if water soaks into the outer coating, it will run along the outer surface far away from the lower end of the impermeable membrane. However, since the lower end of the impermeable membrane is tightly connected to the lasting sole of the footwear, it is prevented from heading to the water lining and thereby from penetrating into the footwear. The waterproofing effect of the strip is complemented by the use of a known type of fixed felt on the lower surface of the lasting insole that blocks the propagation of water.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail based on the embodiments shown in the accompanying drawings.

In FIG. 1, a sports shoe is shown generally at 10.

The shoe 10 comprises a sole 12 and an upper 14. The upper 14 includes an inner lining 16 extending from the inner side to the outer side, an intermediate padding 18, a sweat impermeable membrane 20 and a dressing 22. The covering 22 is completed in the figure by a leather covering 24. For example, there may be another padding layer between the dressing 22 and the impermeable membrane 20, and the membrane 20 may be positioned to directly contact the leather wrap 24.

Inside the shoe 10, there is arranged a lasting insole 26 whose lower surface is covered with a felt layer (not shown), and an anatomical or removable insole 28 thereon.

The inner lining 16, padding 18, impermeable membrane 20, dressing 22 and leather wrap 24 extend to an intermediate position between the edge of the lasting insole 26 and its center, respectively. Forms a peripheral portion. The perimeter of the impermeable membrane 20 has an impermeable element or strip 3 interposed between the bottom 12 and the lasting insole 26.
It is tightly fixed at 0. In the illustrated embodiment,
The strip 30 includes a first end 30b that is firmly fixed between the bottom 12 and the last midsole 26, and a second end 3 that is hermetically fixed to the bottom edges of the bottom 12 and the upper 14.
Has 0a.

However, there is continuous impermeability with an inner portion rigidly fixed between the bottom 12 and the lasting midsole 26 and a peripherally tightly fixed peripheral edge at the lower edges of the bottom 12 and upper 14. It is also possible to provide a sex element.

FIG. 2 shows a shoe 40 similar to the shoe described above. This includes inner lining 16, padding 18 and sweat impermeable membrane 20 extending near the periphery of the lasting insole 26, while dressing 22 and leather wrap 24 contact them with impermeable strip 30. Has been extended until. A sealing element 42 of impermeable material, such as a plastic material, is interposed between the lasting insole 26 and the dressing 22. The sealing element 42 tightly clamps the inner peripheral edge which is tightly secured to the impermeable strip 30 and the lower ends of the inner lining 16, the padding 18 and the impermeable membrane 20 therebetween. Two ends 42
a, 42b having a forked outer peripheral edge defined by a and 42b. Thus, another primary defense is created against the possibility of water entering the interior of the shoe.

Finally, changes or modifications that are conceptually or functionally within the scope of the invention are possible. For example, the strip 30 could comprise the perimeter of an element of the same material suitable to completely or almost completely cover the lower surface of the lasting insole 26.

[Brief description of drawings]

1 is a partial cross-sectional view of an embodiment of footwear according to the present invention.

2 is a partial cross-sectional view of another embodiment of the present invention with the addition of a sealing element.

[Explanation of symbols]

 10,40 Shoes 12 Sole 14 Upper (instep) 16 Inner lining 18 Filling 20 Impermeable membrane 22 Covering material 24 Leather covering 26 Lasting insole 28 Anatomical insole 30 Strip 42 Sealing element

Claims (7)

[Claims] 1. A bottom (12) and an upper (14) are provided, the bottom (12) holding the lower edge of the layer forming the upper (14) against the lasting insole (26) and the upper. (14) an inner lining (16), an intermediate filling (18), an outer covering (22) and an impermeable membrane (20) interposed between the inner lining (16) and the outer covering (22). In an impermeable footwear structure of the type comprising an impermeable membrane (20) sealed to an impermeable element or strip (30) that is sealingly secured to the lasting insole (26). Footwear structure having a lower peripheral edge that is electrically connected. 2. The impermeable element is a strip (30) having a first end (30b) sealingly secured to a lasting insole (26). Footwear structure according to 1. 3. The impermeable strip (30) comprises:
Footwear structure according to claim 2, characterized in that it has a second end (30a) rigidly fixed to the sole (12). 4. The impermeable membrane (20) is a padding (1).
Footwear structure according to any of claims 1 to 3, characterized in that it is interposed between the outer covering (22) and the outer covering (8). 5. The method according to claim 1, wherein the lower peripheral edge of the impermeable membrane (20) is directly and sealingly fixed to the impermeable strip (30). Footwear structure as described. 6. A sealing element (42) of impermeable material,
An inner peripheral edge interposed between the lasting insole (26) and the bottom (12) and sealingly fixed to the impermeable strip (30) and at least the lower end of the impermeable membrane (20). Two ends (42a) that clamp the part tightly between the two
, 42b) having a forked outer peripheral edge defining the footwear structure according to any one of claims 1 to 4. 7. The outer peripheral edges (42a, 42b) of the sealing element (42) tightly seal the inner lining (16), the padding (18) and the lower end of the impermeable membrane (20) together. The footwear structure according to claim 6, wherein the footwear structure is clamped between them.