US3091872A - Shank and heel seat member for footwear - Google Patents

Shank and heel seat member for footwear Download PDF

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Publication number
US3091872A
US3091872A US42175A US4217560A US3091872A US 3091872 A US3091872 A US 3091872A US 42175 A US42175 A US 42175A US 4217560 A US4217560 A US 4217560A US 3091872 A US3091872 A US 3091872A
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US
United States
Prior art keywords
shank
seat member
heel
heel seat
thermoplastic
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
Application number
US42175A
Other languages
English (en)
Inventor
Baumann Franz
Zendron Franz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ballys Shoe Factories Ltd
Original Assignee
Ballys Shoe Factories Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ballys Shoe Factories Ltd filed Critical Ballys Shoe Factories Ltd
Priority to US42175A priority Critical patent/US3091872A/en
Priority to GB24906/61A priority patent/GB991415A/en
Priority to CH805961A priority patent/CH406898A/de
Priority to DK283961AA priority patent/DK128267B/da
Priority to FR867620A priority patent/FR1298575A/fr
Priority to BE605975A priority patent/BE605975A/fr
Priority to AT534061A priority patent/AT244802B/de
Application granted granted Critical
Publication of US3091872A publication Critical patent/US3091872A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/142—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the medial arch, i.e. under the navicular or cuneiform bones
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

Definitions

  • This invention relates to shoes, and more particularly to a shank for shoes which is particularly adapted to use with machines for stapling uppers to shanks.
  • the rear portion of the sole extending from the heel to the beginning of the fore-foot must be as rigid as possible and only very slightly resilient.
  • the rigid1ty of the rear portion of the sole is conventionally obtained by means of card board pieces and shank members of steel or wood. These rigid members are fitted between the usual insole and the outer sole, and the remaining empty spaces are filled with a filler. Assembling of shoe soles having such rigid members is cumbersome and mcreases the cost of production of the shoe.
  • the rigidity of the sole is not always sufficient. When using steel shanks it may occur that the front end of the shank, which transmits the weight of the person wearing the shoe to the street through the outer sole, damages the outer sole. Also the weight of the shoe is considerably increased by such stiifening members.
  • a rigid shank and heel seat member formed of a synthetic plastic material, such as a thermoplastic or thermosetting resinous material, which may or may not be reinforced with glass fibers impregnated in the plastic, the shank and heel seat member being shaped to fit the arched shape of the shank portion of the shoe exactly so as to eliminate the use of any further stiffening members or separate shank pieces.
  • FIG. 1 is a perspective view of the shank and heel seat member according to the present invention
  • FIG. 2 is a longitudinal sectional view of an embodiment of the shank and heel seat member according to the present invention.
  • FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;
  • FIG. 4 is a sectional view similar to FIG. 3 of a modified embodiment of the shank and heel seat member according to the present invention.
  • FIG. 5 is a longitudinal sectional view of a modification of the shank and heel seat member according to the present invention.
  • FIG. 6 is a sectional View taken along line 66 of FIG. 5;
  • FIG. 7 is a view of a further modified embodiment of the shank and heel seat member according to the present invention.
  • FIG. 8 is a longitudinal sectional view taken along line 88 of FIG. 7;
  • FIG. 9 is a sectional View taken along line 99 of FIG. 8;
  • FIG. 10 is a sectional view of a shoe with the shank according to the present invention incorporated therein;
  • FIG. ll is a sectional view taken along line 11-41 of FIG. 10;
  • FIG. 12 is a sectional view taken along line 1212 of FIG. 10.
  • the shank and heel seat member according to the invention extends in a direction along the length of the shoe into which it is to be placed, preferably from the heel to the beginning of a flexible ball portion, the material of the shank and heel seat member having the same shape and contour as the shape of the finished footwear in the portion corresponding to the shank and heel portion to the beginning of the forefoot of the shoe.
  • FIGS. 10l2 show a sole and heel assembly for a womans shoe made with a shank and heel seat member according to this invention.
  • the sole comprises an outer sole member 6, and insole including a flexible forepart o1v ball portion 9 and a rigid shank and heel seat member 16 extending from the end of the ball portion to the heel seat of the heel 11, and a sock lining 8.
  • the forepart or ball portion 9 of the insole is made of any of the usual materials such as leather, cork or other flexible material.
  • the part 9 of the insole is attached to the rigid shank and heel seat member 10.
  • the upper 14 is lasted to the shank portion of the shank heel seat member It? by shank lasting staples 15 and is lasted to the heel portion by tacks 16.
  • the seat face of the heel ll of the shoe is dished to provide a recess 12 and the heel portion of the shank and heel seat member 1t) overlies this recess with the edge of the upper between the shank and heel seat member 16 and the heel ll.
  • the front end of the shank and heel seat member ll; of resinous material is attached by means of adhesive to the flexible ball portion 9.
  • the composite insole is fixed to the outer sole 6 by adhesive or other conventional means and to the heel 11 by the usual screws or heel attaching nails 17.
  • the general shape of the shank and heel seat member Is as shown in FIG. 1, it being curved in the longitudinal direction to conform to the shank of the shoe, and being dished in the transverse direction to conform to the shape of the bottom of the foot.
  • the shank and heel seat member comprises a body 20 which is comprised of a hard plastic material which is sufficiently rigid to withstand the bending stresses imposed on the member in normal use.
  • a strip of material 21 which provides an area on the bottom of the body 20 into which staples from a staple driving apparatus, such as is used in stapling uppers to lasts, can be driven. This strip of material 21 extends substantially the entire length of the shank and heel seat member. As seen in FIG.
  • FIG. 4 has two relatively narrow strips 21 and 21 of material embedded in the bottom of body 20 along the side edges 3 thereof, the material providing two areas on the bottom of the body 20,, into which staples can be driven.
  • the body of the embodiments of FIGS. 2-4, designated by reference numeral 20 with :an appropriate subscript, is of a hard plastic, such as a thermosetting polyester resin, such as Polylite 8027. This resin can be reenforced with a mat of glass fibers which are embedded in the body of the shank and heel seat member.
  • the material which forms the strips or cover, designated by reference numeral 21 with an appropriate subscript, can be any one of a plurality of. substances. it can, for example, be a softer plastic, such as polystyrene, or a braided glass fiber fabric or a cotton fabric impregnated with polystyrene.
  • the material can also be a natural or manufactured fibrous material, such as leather, leather board, or fibre board such as is commonly used in the shoe industry.
  • fibrous material such as leather, leather board, or fibre board such as is commonly used in the shoe industry.
  • the only essential limitation on the nature of the material is that it must be softer than the hard plastic of the body 20 and sufficiently soft to take the staples.
  • a fiber glass mat is placed in a mold and a liquid polyester is poured into the mold. Then a layer of a softer plastic with a thickness of from to V is added to the mold.
  • This layer can also be a fibrous material impregnated with a softer plastic.
  • a braided glass fiber strip may be placed in a layer of polystyrene. The entire assembly is then pressed and molded at a tempera-aure of approximately 140 C. for a period of from /2 to 1 minute.
  • strips of soft material such as fiberboard or cotton fabric are stapled to a mat of glass fibers and the assembly is then placed in a mold, covered with a liquid polyester and premed and molded at a temperature of about 140 C. for a period of about /2 to 1 minute.
  • the shank and heel seat member comprises a body 20 of a somewhat softer plastic material than the plastic material which is used in the embodiments of FIGS. 1-4, and into which staples can easily be driven.
  • This softer plastic needs reinforcing strips 22 and 23 which can be of braided or woven fabric of natural or artificial fibers or metal. For example, there can be used interwoven strands of braided glass fibers.
  • the material of the strips is impregnated with the plastic of the body 20 which may be a polystyrene, and when the plastic hardens, the strips act as a reen-forcing means for the shank and heel seat member.
  • FIGS. 7-9 The embodiment of FIGS. 7-9 is similar to'that of FIGS. 5 and 6, the material of the strips 22 and 23 being wire mesh or woven wire screen. As with the woven fiber material of the strips of the embodiment of FIGS. 5 and 6, the wire screen acts as a reenforcement. As seen in FIG. 9, the wire mesh strip 22 is narrower than strip 23 so that relatively wide edge areas of plastic are left exposed along the bottom of the shank body 20 to receive staples.
  • the molding of the shank and heel seat members of the embodiments of FIGS. 5-9 is similar to that of the other embodiments.
  • the woven strip on one surface is placed in the mold, the plastic poured in and then the other reenforcing strip placed on the top surface.
  • the assembly is then cured in the manner usual for the plastic.
  • shank and heel seat members: of the present invention may also be produced by injection molding.
  • FIGS. 5-9 The embodiments of the shank and heel seat member as shown in FIGS. 5-9, while they are made of somewhat softer plastic than those of FIGS. 1-4, are nevertheless just as satisfactory from a stability standpoint.
  • the reenforcement strips provide the necessary rigidity which is provided by the hardness of the plastic in the embodiments of FIGS. 1-5.
  • shank and heel seat member which can be produced in a single operation by a molding operation and out of plastic material, yet which is conformable to the last for the shoe in which it is to be incorporated. It is very rigid, both before and after the conforming to the last, yet staples can be driven into it and are retained therein.
  • the use of the shank and heel seat member according to the present invention eliminates the necessity to use any other insole elements, such as a metal shank, fillers, etc.
  • a shank and heel seat member for an insole for footwear consisting essentially of a shaped substantially rigid thermoplastic portion, the thermoplastic being sufiicientlysoft to receive and retain lasting staples and tacks, said thermoplastic portion being adapted to extend along the length of the footwear from the heel to the beginning of a flexible ball member, said thermoplastic portion having the same shape and contour as the shape of the finished footwear in the portion corresponding to the shank and heel portion to the beginning of the forefoot, and a reenforcement extending along the central portion of both the top and bottom surfaces of said thermoplastic portion, said reenforcement being strands of substantially inextensible material embedded in said thermoplastic, a portion of said strands extending in the axial direction of the member and the remainder of said strands extending laterally of the member, said strands forming a screen-like mesh.
  • thermoplastic portion as claimed in claim 1 in which the reenforcement on the bottom surface of said thermoplastic portion is substantially less in width than the Width of said shank and heel seat member, whereby lasting staples and tacks can be driven into the thermoplastic portion along the outside edges of the bottom thereof without interference from the reenforcement member extending along the bottom of the thermoplastic portion.
  • a shank and heel seat member as claimed in claim 1 in which said strands in each reenforcemen-t are metal wire and are interwoven into a screen.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US42175A 1960-07-11 1960-07-11 Shank and heel seat member for footwear Expired - Lifetime US3091872A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US42175A US3091872A (en) 1960-07-11 1960-07-11 Shank and heel seat member for footwear
GB24906/61A GB991415A (en) 1960-07-11 1961-07-10 Shank stiffener and heel seat member for footwear
CH805961A CH406898A (de) 1960-07-11 1961-07-10 Brandsohle
DK283961AA DK128267B (da) 1960-07-11 1961-07-10 Armeret gelenkstykke af plast til bindsåler for fodtøj.
FR867620A FR1298575A (fr) 1960-07-11 1961-07-11 Pièce de cambrillon et siège du talon pour chaussures
BE605975A BE605975A (fr) 1960-07-11 1961-07-11 Pièce de cambrillon et siège du talon pour chaussures.
AT534061A AT244802B (de) 1960-07-11 1961-07-11 Teilbrandsohle aus Kunststoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42175A US3091872A (en) 1960-07-11 1960-07-11 Shank and heel seat member for footwear

Publications (1)

Publication Number Publication Date
US3091872A true US3091872A (en) 1963-06-04

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ID=21920446

Family Applications (1)

Application Number Title Priority Date Filing Date
US42175A Expired - Lifetime US3091872A (en) 1960-07-11 1960-07-11 Shank and heel seat member for footwear

Country Status (7)

Country Link
US (1) US3091872A (da)
AT (1) AT244802B (da)
BE (1) BE605975A (da)
CH (1) CH406898A (da)
DK (1) DK128267B (da)
FR (1) FR1298575A (da)
GB (1) GB991415A (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393460A (en) * 1967-04-19 1968-07-23 Romen Bruno Shoe with shape-holding supporting frame
US3394473A (en) * 1966-09-06 1968-07-30 Romen Bruno Shoe having shape-retaining means
US4133117A (en) * 1977-02-03 1979-01-09 Bush Universal, Inc. Stiffener for shoes or the like
US4162583A (en) * 1977-10-26 1979-07-31 Bush Universal, Inc. Shoe stiffener
US4272897A (en) * 1979-11-13 1981-06-16 Ponce Gerald J Steel shank support for molded unit sole
US5396719A (en) * 1992-12-07 1995-03-14 Medical Materials Corporation Apparatus for maintaining the tuckboard of footwear in a particular shape
US5416989A (en) * 1993-03-29 1995-05-23 Brown Group, Inc. Shoe with a shank having a cushion therein
US20040216328A1 (en) * 2002-09-11 2004-11-04 Laduca Phillip F High-heeled jazz dancing and character dancing shoe
US7730634B2 (en) 2002-09-11 2010-06-08 Laduca Phillip F High-heeled jazz dancing and character dancing shoe
ITTV20100030A1 (it) * 2010-03-05 2011-09-06 Ilaria Malaguti Suoletta per calzatura
ITPD20110254A1 (it) * 2011-07-28 2013-01-29 Rubensluciano S P A Soletta di montaggio per tomaia di calzatura, calzatura comprendente detta soletta di montaggio e procedimento di fabbricazione di una siffatta calzatura
WO2016014922A1 (en) * 2014-07-24 2016-01-28 Carver Andrew Lewis High heeled shoe with internal comfort and pronation control system
WO2023174760A1 (de) * 2022-03-15 2023-09-21 Peter Baum Absatzschuh

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414102Y2 (da) * 1975-03-19 1979-06-13
NL7806461A (nl) * 1977-06-21 1978-12-27 Toho Beslon Co Binnenzool en werkwijze voor het vervaardigen daarvan.
FR2652239A1 (fr) * 1989-09-28 1991-03-29 Salomon Sa Semelle interne pour chaussure et chaussure pourvue d'une telle semelle.
TW228469B (da) * 1991-06-19 1994-08-21 Uhl Sportartikel Karl

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1695996A (en) * 1927-05-13 1928-12-18 Davis Robert Shoe shank
US1920670A (en) * 1931-12-16 1933-08-01 Herbert H Roosa Fabric envelope covered metal shank for shoes
US2002707A (en) * 1934-09-05 1935-05-28 Chester M Moore Shoe shank stiffener
US2013168A (en) * 1932-10-04 1935-09-03 William H Nickerson Shank stiffener for shoes
US2129588A (en) * 1934-12-01 1938-09-06 Stacy M Nickerson Hardened shank stiffener with clincher prongs
US2294982A (en) * 1941-03-31 1942-09-08 United Shoe Machinery Corp Shank stiffener
US2358886A (en) * 1942-12-03 1944-09-26 Michael F Sullivan Shoe shank
US2371322A (en) * 1945-03-13 Shank stiffener and method of
US2558317A (en) * 1946-11-18 1951-06-26 Schwartz Russell Plato Shank piece for shoes
US2644250A (en) * 1951-11-23 1953-07-07 Joseph A Ciaio Laminated shoe sole
US2838855A (en) * 1956-03-16 1958-06-17 Maccarone Fred Narrow shank shoe and process of making the same

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371322A (en) * 1945-03-13 Shank stiffener and method of
US1695996A (en) * 1927-05-13 1928-12-18 Davis Robert Shoe shank
US1920670A (en) * 1931-12-16 1933-08-01 Herbert H Roosa Fabric envelope covered metal shank for shoes
US2013168A (en) * 1932-10-04 1935-09-03 William H Nickerson Shank stiffener for shoes
US2002707A (en) * 1934-09-05 1935-05-28 Chester M Moore Shoe shank stiffener
US2129588A (en) * 1934-12-01 1938-09-06 Stacy M Nickerson Hardened shank stiffener with clincher prongs
US2294982A (en) * 1941-03-31 1942-09-08 United Shoe Machinery Corp Shank stiffener
US2358886A (en) * 1942-12-03 1944-09-26 Michael F Sullivan Shoe shank
US2558317A (en) * 1946-11-18 1951-06-26 Schwartz Russell Plato Shank piece for shoes
US2644250A (en) * 1951-11-23 1953-07-07 Joseph A Ciaio Laminated shoe sole
US2838855A (en) * 1956-03-16 1958-06-17 Maccarone Fred Narrow shank shoe and process of making the same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394473A (en) * 1966-09-06 1968-07-30 Romen Bruno Shoe having shape-retaining means
US3393460A (en) * 1967-04-19 1968-07-23 Romen Bruno Shoe with shape-holding supporting frame
US4133117A (en) * 1977-02-03 1979-01-09 Bush Universal, Inc. Stiffener for shoes or the like
US4162583A (en) * 1977-10-26 1979-07-31 Bush Universal, Inc. Shoe stiffener
US4272897A (en) * 1979-11-13 1981-06-16 Ponce Gerald J Steel shank support for molded unit sole
US5396719A (en) * 1992-12-07 1995-03-14 Medical Materials Corporation Apparatus for maintaining the tuckboard of footwear in a particular shape
US5416989A (en) * 1993-03-29 1995-05-23 Brown Group, Inc. Shoe with a shank having a cushion therein
US20040216328A1 (en) * 2002-09-11 2004-11-04 Laduca Phillip F High-heeled jazz dancing and character dancing shoe
US7051458B2 (en) 2002-09-11 2006-05-30 Laduca Phillip F High-heeled jazz dancing and character dancing shoe
US7730634B2 (en) 2002-09-11 2010-06-08 Laduca Phillip F High-heeled jazz dancing and character dancing shoe
ITTV20100030A1 (it) * 2010-03-05 2011-09-06 Ilaria Malaguti Suoletta per calzatura
ITPD20110254A1 (it) * 2011-07-28 2013-01-29 Rubensluciano S P A Soletta di montaggio per tomaia di calzatura, calzatura comprendente detta soletta di montaggio e procedimento di fabbricazione di una siffatta calzatura
WO2016014922A1 (en) * 2014-07-24 2016-01-28 Carver Andrew Lewis High heeled shoe with internal comfort and pronation control system
WO2023174760A1 (de) * 2022-03-15 2023-09-21 Peter Baum Absatzschuh

Also Published As

Publication number Publication date
BE605975A (fr) 1961-11-03
GB991415A (en) 1965-05-05
CH406898A (de) 1966-01-31
FR1298575A (fr) 1962-07-13
AT244802B (de) 1966-01-25
DK128267B (da) 1974-04-01

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