US20230108387A1 - Double-Layer Footwear for Precluding Water Penetration - Google Patents
Double-Layer Footwear for Precluding Water Penetration Download PDFInfo
- Publication number
- US20230108387A1 US20230108387A1 US17/494,793 US202117494793A US2023108387A1 US 20230108387 A1 US20230108387 A1 US 20230108387A1 US 202117494793 A US202117494793 A US 202117494793A US 2023108387 A1 US2023108387 A1 US 2023108387A1
- Authority
- US
- United States
- Prior art keywords
- rubber foam
- joint member
- foam panel
- seam
- footwear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0205—Uppers; Boot legs characterised by the material
- A43B23/0215—Plastics or artificial leather
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0205—Uppers; Boot legs characterised by the material
- A43B23/0235—Different layers of different material
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/025—Uppers; Boot legs characterised by the constructive form assembled by stitching
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/0245—Uppers; Boot legs characterised by the constructive form
- A43B23/0255—Uppers; Boot legs characterised by the constructive form assembled by gluing or thermo bonding
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/02—Uppers; Boot legs
- A43B23/06—Waterproof legs
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/12—Special watertight footwear
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A double-layer footwear, especially a water sport footwear, comprises: an outer rubber foam panel defining a first joint member in an outer seam in the outer rubber foam panel, and an inner rubber foam panel defining a second joint member in an inner seam in the inner rubber foam panel and adhered with the outer rubber foam panel with an adhesive, with the second joint member being projectively separated from the first joint member with a barrier distance, to thereby securely preclude water penetration through the outer and inner seams into a wearer's foot.
Description
- A conventional water sport shoe, as made of covering (1) as shown in
FIGS. 1 ˜3, comprises: a first rubber foam panel (11) and a second rubber foam panel (12), both panels (11, 12) being joined by an adhesive and stitching at seam (13) for preventing water penetration through the panels (11, 12). - However, after a time period of service, the seam (13) may be leaked or broken due to the following reasons:
- 1. The chemical, such as the chlorine ion in sea water with pressure (P), may cause the degradation of the adhesive in the seam, thereby resulting in joint failure or leakage (L) of the shoe.
2. As being compressed by the water pressure (P), especially when immersed in a deep sea, the shoe covering made of rubber foam may be thinned under the high water pressure. However, the hard impurities, as formed during the foaming process of foam, may not be thinned. A water leakage (L) may then be formed through such impurities in the foam, thereby causing water penetration into the wearer's foot.
3. Even not subjected to high water pressure, the seam at two joined foam panels or sheets may still be leaked after repeated use, such as due to mechanical stress and strain. - The present inventor has found the drawbacks of a conventional water sport shoe, and invented the present double-layer footwear for precluding water penetration through the footwear.
- The object of the present invention is to provide a double-layer footwear, especially a water sport footwear, comprising: an outer rubber foam panel defining a first joint member in an outer seam in the outer rubber foam panel, and an inner rubber foam panel defining a second joint member in an inner seam in the inner rubber foam panel and adhered with the outer rubber foam panel with an adhesive, with the second joint member being projectively separated from the first joint member with a barrier distance, to thereby securely preclude water penetration through the outer and inner seams into a wearer's foot.
-
FIG. 1 shows two separated rubber foam sheets of a conventional water sport shoe. -
FIG. 2 shows a rubber foam panel formed by adhering and sewing the two separated rubber foam sheets together fromFIG. 1 . -
FIG. 3 shows the conventional shoe being leaked when subjected to water pressure. -
FIG. 4 shows two rubber foam sheets adapted for forming an outer rubber foam panel in accordance with the present invention. -
FIG. 5 shows the joining of the two rubber foam sheets to form the outer rubber foam panel of the present invention. -
FIG. 6 shows two rubber foam sheets adapted to be joined to form an inner rubber foam panel in accordance with the present invention. -
FIG. 7 shows a footwear covering by adhering the outer rubber foam panel and the inner rubber foam panel of the present invention. -
FIG. 8 shows a footwear covering by adhering a fabric layer on an inner side of the rubber foam covering of the present invention. -
FIG. 9 shows a footwear as made in accordance with the present invention. -
FIG. 10 shows a cross sectional illustration as viewed from Line 10-10 ofFIG. 9 . - As shown in
FIGS. 4 ˜10, the present invention comprises a double-layer footwear, which is made by acovering 10 consisting of an outerrubber foam panel 1, and an innerrubber foam panel 2 combined and adhered by an interface adhesive 3 between the twopanels - Two fabric layer 4 (
FIG. 8 ) are formed on both sides of therubber foam panels fabric layer 4 may be made of nylon, polyester, etc. - As shown in
FIG. 4 , the outer rubber foam (or rubber sponge)panel 1 includes two outerrubber foam sheets - As shown in
FIG. 5 , the two outerrubber foam sheets rubber foam sheets sheets sheets - As shown in
FIG. 6 , the innerrubber foam panel 2 includes two innerrubber foam sheets rubber foam sheets rubber foam sheets FIG. 7 ). A stitching (not shown) may also be provided to further fasten the tworubber foam sheets - The outer
rubber foam panel 1 and the innerrubber foam panel 2 are adhered and joined by an interface adhesive 3, which may also be a rubber adhesive, to form the covering 10 of the footwear. - The second
joint member 23 is projectively deviated or separated from the firstjoint member 13 with a barrier distance D for securely precluding any unexpected water penetration through the outer seam with the firstjoint member 13. The word “projectively” used herewith is intended to define the twojoint members rubber foam panels - The “barrier” distance D may also be referred as a safety distance between the first joint member 13 (at outer seam) and the second joint member 23 (at inner seam), whereby even unexpected incoming water penetrates through the outer seam of the
first panel 1, the interface adhesive 3 bonded between the first andsecond panels - Such a barrier distance D is not limited in the present invention, and may be at least 6 mm, or may be a quarter of the periphery of a footwear boot (
FIGS. 9, 10 ) of the present invention. - For absolutely precluding any water penetration, a sealing tape (not shown) may be further provided to fasten a bottom of the second joint member 23 (or inner seam). Such a sealing tape may include a heat tape made of hot melt PU adhesive or a glue tape made of Neoprene and rubber adhesive. but not limited in the present invention.
- The rubber foam or rubber sponge of the present invention may include Neoprene, Styrene-Butadiene Rubber (SBR), etc.
- The
outer panel 1 may have a thickness of 1.5˜5 mm, while theinner panel 2 may have a thickness of 1.5˜6 mm but not limited in this invention. - Thanks to the barrier distance D between the outer
joint member 13 at the outer seam and the innerjoint member 23 at the inner seam. The incoming water even penetrates inwardly through the first joint member 13 (outer seam), if unfortunately failed or not bonded, the incoming water will be precluded beyond the barrier distance D of the interface adhesive 3 as adhered between the outer andinner panels joint member 23 at the inner seam as projectively separated from the firstjoint member 13. - Otherwise, if there is no barrier distance exists, the second (or inner)
joint member 23 will be aligned with the first (or outer)joint member 13. The water, after attacking the first joint member 13 (outer seam), if failed or deboned, will directly penetrate inwardly to attack the second joint member 23 (inner seam), thereby possibly causing leakage through the seams of the twopanels - The
joint member FIG. 8 , for example. - The present invention may be further modified without departing from the spirit and scope of the present invention.
- A single sheet of rubber foam panel may be rolled up and has its opposite end portions joined by a joint member to form cylindrical-shape structure, like a boot.
- The present invention may produce any kind of footwear, including water sport footwears, shoes, or boots.
Claims (4)
1. A double-layer footwear comprising: an outer rubber foam panel having a first joint member for joining an outer seam in the outer rubber foam panel, and an inner rubber foam panel having a second joint member for joining an inner seam in the inner rubber foam panel and adhered with the outer rubber foam panel with an interface adhesive, with the second joint member projectively separated from the first joint member with a barrier distance, to preclude water penetration through the outer and inner seams into a wearer's foot; and each said joint member including an adhesive and a stitching.
2. A double-layer footwear, which is made by a covering consisting of an outer rubber foam panel, and an inner rubber foam panel combined and adhered by an interface adhesive between the outer and inner panels;
said outer rubber foam panel including two outer rubber foam sheets, joined by a first joint member at an outer seam by adhering and sewing the opposite end portions of the two outer rubber foam sheets to join the two outer rubber foam sheets together;
said inner rubber foam panel including two inner rubber foam sheets joined by a second joint member at an inner seam by adhering or sewing the opposite end portions of the two inner rubber foam sheets and then joined together;
said outer rubber foam panel and said inner rubber foam panel adhered and joined by an interface adhesive to form the covering of the footwear;
said second joint member projectively deviated or separated from said first joint member with a barrier distance for securely precluding unexpected water penetration.
3. A footwear according to claim 2 , wherein each said joint member includes an adhesive and a stitching.
4. A footwear according to claim 2 , wherein said covering further comprises a sealing tape adhered on a bottom of said inner seam of said inner rubber foam panel for further sealing said inner seam.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/494,793 US20230108387A1 (en) | 2021-10-05 | 2021-10-05 | Double-Layer Footwear for Precluding Water Penetration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/494,793 US20230108387A1 (en) | 2021-10-05 | 2021-10-05 | Double-Layer Footwear for Precluding Water Penetration |
Publications (1)
Publication Number | Publication Date |
---|---|
US20230108387A1 true US20230108387A1 (en) | 2023-04-06 |
Family
ID=85773988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/494,793 Abandoned US20230108387A1 (en) | 2021-10-05 | 2021-10-05 | Double-Layer Footwear for Precluding Water Penetration |
Country Status (1)
Country | Link |
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US (1) | US20230108387A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040020077A1 (en) * | 2002-10-25 | 2004-02-05 | Lacrosse Footwear, Inc. | Rubber footwear with neoprene layer |
US20110252667A1 (en) * | 2008-12-22 | 2011-10-20 | Geox S.P.A. | Waterproof and vapor-permeable shoe |
US20130133227A1 (en) * | 2011-11-28 | 2013-05-30 | Chih-Yung Yu | Footwear and Production Method Thereof |
-
2021
- 2021-10-05 US US17/494,793 patent/US20230108387A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040020077A1 (en) * | 2002-10-25 | 2004-02-05 | Lacrosse Footwear, Inc. | Rubber footwear with neoprene layer |
US20110252667A1 (en) * | 2008-12-22 | 2011-10-20 | Geox S.P.A. | Waterproof and vapor-permeable shoe |
US20130133227A1 (en) * | 2011-11-28 | 2013-05-30 | Chih-Yung Yu | Footwear and Production Method Thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SHEICO GROUP ( SHEI CHUNG HSIN INDUSTRIAL ) CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHIUE, HENG-WEN;REEL/FRAME:057785/0514 Effective date: 20211013 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |