US3393460A - Shoe with shape-holding supporting frame - Google Patents
Shoe with shape-holding supporting frame Download PDFInfo
- Publication number
- US3393460A US3393460A US649265A US64926567A US3393460A US 3393460 A US3393460 A US 3393460A US 649265 A US649265 A US 649265A US 64926567 A US64926567 A US 64926567A US 3393460 A US3393460 A US 3393460A
- Authority
- US
- United States
- Prior art keywords
- shoe
- sole
- supporting frame
- plastic
- shape
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
- B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/08—Heel stiffeners; Toe stiffeners
- A43B23/16—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like
- A43B23/17—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/22—Supports for the shank or arch of the uppers
Definitions
- FIGA A first figure.
- the present invention relates to a shoe construction and it is its object to provide the shoe with a built-in shapeholding frame which consists of a molded part of plastic which is produced by injection molding and comprises a rigid insole part which extends between the heel and ball areas of the shoe, and a heel cap which is integrally connected to this insole part and extends forwardly approximately to the arch portion of the shoe.
- the outer side of the supporting frame is then covered .by the material of the upper of the shoe.
- the supporting frame of a shoe of this type which may be produced in a simple manner, for example, by injection molding or casting, not only forms the shape-holding body of the shoe but also serves as a shape-holding support for the leather of the upper.
- the shaping of the rear part of the upper which in previous shoe constructions had to be carried out on a heel forming machine may therefore now be omitted.
- This not only renders the manufacture of a 'shoe considerably more simple and less expensive, but it also permits such a shoe to be made of a thinner leather of a lower quality without requiringthe use of an intermediate lining.
- the supporting frame may be made as a molded part of plastic, 2. shoe which is provided with such frame will have and retain the shape of the last on which it is made much more accurately than a shoe the shape of which depends primarily upon the stability of the material of the upper, for example, leather.
- these difliculties may be substantially overcome by molding the supporting frame in such a manner upon a sole which extends along the entire length of the shoe and will practically not shrink as the result of the molding operation that the supporting frame overlaps the lower side of the sole, while the part of this sole which projects forwardly from the supporting frame forms a flexible lasting sole.
- this full-length sole therefore has the further object to provide the shoe bottom with a flexible front part which is important for permitting a proper rolling motion of the foot.
- the supporting frame together with the full-length sole therefore forms a single prefabricated component.
- the full-length sole according to the invention may be made of a material similar to the materials of which the conventional insoles are made and may consist of a compressed fiber layer which is sufficiently flexible and resilient so as not to interfere with the natural rolling motion of the ball area of the foot and also has good moisture-absorbent properties to absorb the perspiration of the foot.
- a compressed fiber layer may also be easily glued together with the inner lining of the upper.
- Another feature of the invention consists in providing the rear part of the full-length sole within the heel cap with a central aperture, preferably of an oblong shape, which is adapted to be filled out with the plastic covering the lower side of the sole and also counteracts a distortion of the supporting frame when the plastic is cooling.
- FIGURE 1 shows a perspective view of the upper side of a full-length sole according to the invention
- FIGURE 2 shows a perspective view of the entire shoe insert according to the invention consisting of the sole according to FIGURE 1 and the supporting frame;
- FIGURE 3 shows a cross section which is taken along the line III--III of FIGURE 2;
- FIGURE 4 shows a cross section which is taken along the line 1V-IV of FIGURE 2;
- FIGURE 5 shows a top view of the built-in part according to FIGURE 2;
- FIGURE 6 shows a bottom view of the built-in part according to FIGURE 2; while FIGURE 7 shows a cross section which is taken along the line VII--VII of FIGURE 2.
- the shoe structure according to the invention comprises a full-length sole 1 which consists of a flexible but shape-holding material, for example, a fibrous synthetic-resin molded compound, which may be easily glued together with the inner lining of the upper, not shown.
- the sole 1 is provided within the heel area with an aperture 2 by stamping out a tongue 3 which is still connected at its front end to the sole 1. This sole is placed into the mold in the position as illustrated in FIGURE 1 so that the tongue 3 is bent downwardly and the aperture 2 is open for being filled with the plastic which forms the supporting frame.
- tongue 3 that is, the side facing the foot
- tongue 3 is reinforced by a strip 4 of spring steel which is secured thereto and braces the arch of the foot.
- the tongue 3 By bending the tongue 3 downwardly, it may be pressed so firmly against the wall of the mold during the molding of the supporting frame that the lower side of this tongue will not be covered by plastic.
- the lower side of sole 1 is therefore covered with the plastic of the supporting frame only within the area of the marginal strip 1' which surrounds the aperture 2.
- this part of the sole is pressed firmly against the wall of the mold while the supporting frame is being molded.
- the pins which are provided in the mold to hold the tongue 3 and the marginal strip 1' in the desired position during the molding operation leave small apertures 7 in the molded product as indicated in FIGURES and 6.
- the full-length sole 1 consists of a material which may be easily glued together with the inner lining of the shoe, the upper side of the marginal strip 1 which is not covered with plastic will form a very suitable gluing surface for securing the supporting frame to the inner lining of the shoe.
- the plastic of the supporting frame may also flow over the arch portion of sole 1.
- the coating 8 of plastic which is thus formed ends near the center of sole 1 at a short distance from the line which forms the axis about which the sole is bent during the natural rolling motion of the foot. This prevents the sole 1 from breaking within this area.
- the coating of plastic within the arch portion on the upper side of sole 1 has the advantage that, due to the shrinking of the plastic while cooling, a dished recess is formed which is very suitable for adapting the sole to the shape of the foot. If the coating of plastic would not be provided on the upper side but on the lower side on sole 1, this would result in a bulging of the sole in the upward direction in deviation from the shape of the foot.
- the front end of the plastic coating 8 forms a concave arc 9.
- the marginal parts of the plastic coating 8 therefore extend farther toward the flexible part of sole 1 and thereby improve the stability of the foot by considerably increasing the resistance of the sole against bending in the lateral directions.
- the ball area of the sole 1 in front of the arc 9 is likewise molded so as to have a dished shape in accordance with the shape of this part of the bottom of the foot and the corresponding last.
- This dished shape is preferably molded in the same operation with the molding of the supporting frame upon the sole 1 by employing the heat and pressure of molding the latter parts also for molding the sole 1 to the desired shape.
- the operation of molding the supporting frame also serves for providing the lower side of the tongue 3 with a projection 10 to which a heel, not shown, may be subsequently secured.
- tongue 3 is provided with an aperture 11 through which the plastic may flow into a recess in the wall of the mold which has a shape in accordance with the projection 10 so that the latter will be formed therein.
- This projection 10 is preferably made of an angular block-shape so that when the heel is fitted thereon, it will also be properly centered.
- the aperture 11 in tongue 3 coincides with an aperture 12 in the steel strip 4 so as to permit the plastic to flow through both apertures into the recess in the mold.
- the supporting frame according to the invention preferably consists of high-pressure polyethylene which possesses the desired physical characteristics of this frame.
- the plastic for producing the supporting frame is preferably injected into the mold near the rear end of sole 1, preferably at a point in front of the apex of the sole.
- the molecules will thereby be oriented in the longitudinal direction of the supporting frame so that the shrinkage of the cooling plastic will have the least effect upon the desired size and shape of the molded article.
- a shoe having a built-in insert comprising a shapeholding supporting frame consisting of a molded part of plastic forming a heel cap extending substantially to the arch portion of the shoe, and a full-length sole extending substantially from the rear end to substantially the front end of said shoe and having a flexible front part and a rear part, said rear part being molded together with said heel cap and rendered substantially rigid thereby, said heel cap having lower parts extending around the lateral sides of said rear part and overlapping the lower side thereof and molded thereto, said sole consisting of a material adapted to be substantially nonshrinking under the effects of molding said heel cap to said sole, the outer side of said heel cap being adapted to serve as a base for supporting the material of the upper of said shoe.
- said aperture is of an oblong shape and is formed by cutting out a tongue from said rear part of said sole, said tongue remaining secured at its front end to said sole and being bent downwardly from said sole so as to permit the plastic to flow into said aperture during the operation of molding said supporting frame.
- said insert further comprises a reinforcement adapted to form an arch support secured to Said sole and having an aperture substantially coinciding with said aperture in the rear part of said sole, said plastic filling out both of said apertures in the operation of molding said supporting frame.
- said plastic also covers at least a part of the upper side of said sole and forms a coating thereon extending forwardly up to a line spaced at a short distance from a line forming the axis about which the sole is bent during the natural rolling motion of the foot on which said shoe is worn.
- said sole consists of a material capable of being easily glued together with an inner lining of the shoe and has on its upper side within the area of said heel cap a marginal strip surrounding said aperture and not covered with the plastic of said supporting frame. said marginal strip being adapted for gluing thereto the lower edge of said lining.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER0045803 | 1967-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3393460A true US3393460A (en) | 1968-07-23 |
Family
ID=7407772
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US649265A Expired - Lifetime US3393460A (en) | 1967-04-19 | 1967-06-27 | Shoe with shape-holding supporting frame |
US749894*A Expired - Lifetime US3536805A (en) | 1967-04-19 | 1968-05-07 | Method of making shoes with shapeholding supporting frame |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US749894*A Expired - Lifetime US3536805A (en) | 1967-04-19 | 1968-05-07 | Method of making shoes with shapeholding supporting frame |
Country Status (11)
Country | Link |
---|---|
US (2) | US3393460A (fr) |
AT (1) | AT295353B (fr) |
BE (1) | BE703484A (fr) |
CH (1) | CH458990A (fr) |
DE (1) | DE1685707A1 (fr) |
ES (1) | ES139218Y (fr) |
FI (1) | FI42924B (fr) |
FR (1) | FR1531222A (fr) |
GB (1) | GB1149434A (fr) |
LU (1) | LU55857A1 (fr) |
NO (1) | NO117284B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5179791A (en) * | 1991-08-19 | 1993-01-19 | Lain Cheng K | Torsional spring insole and method |
US5297349A (en) * | 1987-11-06 | 1994-03-29 | Nike Corporation | Athletic shoe with rearfoot motion control device |
US5720117A (en) * | 1995-06-16 | 1998-02-24 | Ariat International, Inc. | Advanced torque stability shoe shank |
US20070039208A1 (en) * | 2005-08-22 | 2007-02-22 | Fila Luxembourg S.A.R.L. | Adaptable shoe having an expandable sole assembly |
US20080141562A1 (en) * | 2006-12-13 | 2008-06-19 | Fila Luxembourg S.A.R.L. | Adjustable arch support assembly |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409745A (en) * | 1981-09-09 | 1983-10-18 | Fratelli Musci | Insole system for shoe with removably-mounted heel |
IT8430626V0 (it) * | 1984-02-02 | 1984-02-02 | Asolo Sport Sas | Sottopiede anatomico conglobante puntale e tallone particolarmente per calzature sportive. |
GB2188531B (en) * | 1986-03-17 | 1989-11-15 | John Alan Drew | Shoe |
RO118110B1 (ro) * | 1996-10-02 | 2003-02-28 | Hbn Shoe, Llc | Pantof cu toc înalt |
CA2700840A1 (fr) * | 2007-09-28 | 2009-04-02 | Blundstone Australia Pty Ltd | Article de chaussure |
US8973290B2 (en) | 2012-07-30 | 2015-03-10 | Nike, Inc. | Reinforcing shank arrangement for footwear sole structure |
WO2014110026A2 (fr) | 2013-01-08 | 2014-07-17 | Saudi Arabian Oil Company | Procédé d'optimisation de la charge catalytique dans les procédés d'hydrocraquage |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2403422A (en) * | 1942-08-06 | 1946-07-02 | John Deere Tractor Co | Power lift |
US3068872A (en) * | 1959-08-11 | 1962-12-18 | Brody Alec Elliot | Foot supporting device |
US3091872A (en) * | 1960-07-11 | 1963-06-04 | Bally S Shoe Factories Ltd | Shank and heel seat member for footwear |
US3120710A (en) * | 1958-10-07 | 1964-02-11 | Ariston Schuhfabrik Romen G M | Shoe construction with molded rigid rear sole part |
US3333353A (en) * | 1963-07-19 | 1967-08-01 | Garcia Pedro Arnau | Manufacture of footwear |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483004A (en) * | 1945-08-30 | 1949-09-27 | Gregg Jon | Premolding and loading apparatus |
US2607061A (en) * | 1949-12-28 | 1952-08-19 | United Shoe Machinery Corp | Method of attaching heels to shoes |
US2764768A (en) * | 1951-10-26 | 1956-10-02 | United Shoe Machinery Corp | Shoe lasts |
US3026573A (en) * | 1956-12-26 | 1962-03-27 | Modern Shoe Making Machine Cor | Method of stiffening a shoe upper |
US3035291A (en) * | 1958-03-05 | 1962-05-22 | Cambridge Rubber Co | Method of making footwear having waterproof soles |
US2912772A (en) * | 1959-04-15 | 1959-11-17 | Schuyler G Harrison | Shoe structure having molded basic units |
-
1967
- 1967-04-19 DE DE19671685707 patent/DE1685707A1/de active Pending
- 1967-06-13 NO NO168571A patent/NO117284B/no unknown
- 1967-06-19 AT AT567267A patent/AT295353B/de not_active IP Right Cessation
- 1967-06-26 ES ES1967139218U patent/ES139218Y/es not_active Expired
- 1967-06-27 US US649265A patent/US3393460A/en not_active Expired - Lifetime
- 1967-06-28 GB GB29942/67A patent/GB1149434A/en not_active Expired
- 1967-07-11 FI FI1906/67A patent/FI42924B/fi active
- 1967-07-12 CH CH998367A patent/CH458990A/de unknown
- 1967-07-17 FR FR114502A patent/FR1531222A/fr not_active Expired
- 1967-09-05 BE BE703484D patent/BE703484A/xx unknown
-
1968
- 1968-04-08 LU LU55857A patent/LU55857A1/xx unknown
- 1968-05-07 US US749894*A patent/US3536805A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2403422A (en) * | 1942-08-06 | 1946-07-02 | John Deere Tractor Co | Power lift |
US3120710A (en) * | 1958-10-07 | 1964-02-11 | Ariston Schuhfabrik Romen G M | Shoe construction with molded rigid rear sole part |
US3068872A (en) * | 1959-08-11 | 1962-12-18 | Brody Alec Elliot | Foot supporting device |
US3091872A (en) * | 1960-07-11 | 1963-06-04 | Bally S Shoe Factories Ltd | Shank and heel seat member for footwear |
US3333353A (en) * | 1963-07-19 | 1967-08-01 | Garcia Pedro Arnau | Manufacture of footwear |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5297349A (en) * | 1987-11-06 | 1994-03-29 | Nike Corporation | Athletic shoe with rearfoot motion control device |
US5179791A (en) * | 1991-08-19 | 1993-01-19 | Lain Cheng K | Torsional spring insole and method |
US5720117A (en) * | 1995-06-16 | 1998-02-24 | Ariat International, Inc. | Advanced torque stability shoe shank |
US20070039208A1 (en) * | 2005-08-22 | 2007-02-22 | Fila Luxembourg S.A.R.L. | Adaptable shoe having an expandable sole assembly |
US20070039209A1 (en) * | 2005-08-22 | 2007-02-22 | Fila Luxembourg S.A.R.L. | Method and system for providing a customized shoe |
US20070043582A1 (en) * | 2005-08-22 | 2007-02-22 | Fila Luxembourg S.A.R.L. | Method and system for providing customized footwear to a retail consumer |
US20080141562A1 (en) * | 2006-12-13 | 2008-06-19 | Fila Luxembourg S.A.R.L. | Adjustable arch support assembly |
Also Published As
Publication number | Publication date |
---|---|
DE1685707A1 (de) | 1971-08-26 |
FR1531222A (fr) | 1968-06-28 |
NO117284B (fr) | 1969-07-21 |
US3536805A (en) | 1970-10-27 |
ES139218U (es) | 1968-11-16 |
ES139218Y (es) | 1973-03-16 |
FI42924B (fr) | 1970-08-03 |
LU55857A1 (fr) | 1968-07-03 |
AT295353B (de) | 1971-12-27 |
CH458990A (de) | 1968-06-30 |
BE703484A (fr) | 1968-02-01 |
GB1149434A (en) | 1969-04-23 |
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