US3497892A - Contoured insoles - Google Patents

Contoured insoles Download PDF

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Publication number
US3497892A
US3497892A US734168A US3497892DA US3497892A US 3497892 A US3497892 A US 3497892A US 734168 A US734168 A US 734168A US 3497892D A US3497892D A US 3497892DA US 3497892 A US3497892 A US 3497892A
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United States
Prior art keywords
last
shoe
insole
insert
contoured
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
US734168A
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English (en)
Inventor
Benjamin F Parrelli
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.)
Emhart Enterprises Corp
USM Corp
Original Assignee
USM Corp
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Filing date
Publication date
Application filed by USM Corp filed Critical USM Corp
Application granted granted Critical
Publication of US3497892A publication Critical patent/US3497892A/en
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined

Definitions

  • the present invention relates to the manufacture of contoured insole shoes, and more particularly to an insert for use in combination with a standard shaped last for use in such manufacture, wherein the contoured insole is inserted into the partially completed shoe after the shoe is removed from the last.
  • the contoured insole shoe has met with great acceptance, particularly in the service and dress shoe eld.
  • these shoes have generally been constructed by conventional shoemaking methods, with the contoured insole being applied to a last in lieu of a non-contoured or flat insole, and the shoe being constructed on the contoured insole which remains as part of the shoe when removed from the last.
  • a last having modified structure from that of a standard last is necessary to accommodate the contour surface of the ⁇ insole during shoe construction.
  • a primary object of the invention therefore, is to allow a shoe manufacturer to proceed conventionally in the manufacture of contoured insole shoes without the problems and hazards connected with special lasting, welt rib attaching, heel seat treatment, etc., which are involved when contour insoles are built in as part of the lasted shoe.
  • a second object of the invention is to enable a shoe manufacturer to produce shoes having a contoured insole by employing a standard last used in the manufacture of non-contoured insole shoes.
  • Another object of the invention is to provide an article which is used in combination with a standard shaped last in the manufacture of contoured insole shoes.
  • a further object of the present invention is to provide a method of manufacturing contoured insole shoes wherein a standard last is used to construct the shoe.
  • a more general object of the present invention is to facilitate the manufacture of contour insole shoes with out the large investment in lasts which have heretofore been necessary, by enabling the manufacturer to temporarily modify a standard last for manufacturing contoured insole shoes, after which the last may be again used for standard shoe construction.
  • an article of manufacture having its one surface conforming generally to the sole surface of a standard last, and its opposite surface conforming generally to the sole surface of a contoured insole to be used in the shoe construction.
  • the article generally comprises a forepart and a back part hingedly connected one to the other.
  • the hinged construction permits the use of the article with a standard two-part last having a forward portion and a heel portion which are opened to facilitate removal of the shoe from the last.
  • the forepart of the article is generally attached in a temporary manner such as by tacks, staples, etc., to the forward portion of the last and the back part of the article is rested, without fastening, on the heel portion of the last.
  • a shoe of standard construction with exception of the insole, is now constructed on the last and article combination. When the construction is complete, the last is opened and the shoe removed, after which a contoured insole is inserted in the shoe.
  • FIG. l is a plan view of an article of manufacture for use in combination with a standard last, and constructed in accordance with the teachings of the present invention
  • FIG. 2 is a sectional view taken along the line II-II of FIG. l showing details of the article taken on an enlarged scale for clarity;
  • FIG. 3 is an elevational view, partially in section, showing the article attached to a Standard last
  • FIG. 4 is a sectional elevational view similar to FIG. 3, showing a shoe construction manufactured on the last structure shown in FIG. 3, just prior to removal from the last;
  • FIG. 5 is an elevational view similar to FIG. 4, showing the last and article combination in its open position during removal of the shoe structure therefrom;
  • FIG. 6 is a sectional elevational view of a contoured insole to be used in the shoe structure of FIGS. 4 and 5, showing the article of FIGS. 1 and 2 superimposed thereon in phantom lines;
  • FIG. 7 is a sectional view taken along the line VII--VII of FIG. 6 showing details of the contoured insole and superimposed article structure, taken on an enlarged scale for clarity.
  • FIGS. 1 and 2 there is shown an article of manufacture in the form of a last insert 10 which is constructed to be used in combination with a standard shaped last in the manufacture of contoured insole shoes.
  • the insert 10 shown in plan form in FIG. 1, is of a shape and size to substantially cover the sole portion of the standard last and generally comprises a forepart 11 and a back part 12.
  • the insert 10 is so formed as to have a surface 13 conforming generally to the sole surface of a standard last with which the insert is to be used.
  • the opposite surface 14 is fabricated to conform to the shape of the sole surface of a contoured insole which is to be inserted into a shoe constructed on, and after its removal from, the last.
  • the insert 10 may be fabricated from any known material which will readily receive fasteners such that a shoe may be manufactured in the standard manner as by tacking a thin sheet of insole material to the insert and the last.
  • the last insert from a moldable plastic material such as a polyurethane.
  • the mold may be constructed to provide a recessed area onto which a heel plate is fastened.
  • the heel plate 15 serves to take the place of the last heel plate which is covered by the insert 1t) ⁇ during the shoe construction, as will become evident in the description which follows.
  • the hinge 16 may take any form which is convenient in fastening the forepart 11 and the back part 12 together, in the insert 10 as shown, the hinge is formed by molding a sheet of canvas cloh, polystyrene plastic, or other flexible material into the insert when it is formed.
  • the manufacture of the insert as a molded plastic member has the added advantage in that the hinge 16 may be molded into the forepart 11 and the back part 12 to form a unitary structure without the undesirable distortion of the surfaces 13 and 14, resulting from fastening the members together by other methods.
  • FIG. 3 there is shown a standard last 17 having a forward portion 18 and a heel portion 19 movable about a hinge point 21 from the closed position (as shown in FIG. 3) to an open position, for removal of the shoe structure therefrom.
  • a sole surface 22 is presented on which the insert 10 is placed in mating engagement, the insert surface 13 having been contoured to correspond to the last sole surface 22 as explained heretofore.
  • the forefart of the insert 10 is now attached to the forward portion 18 of the last 17 -by tacks 23, or other suitable fasteners.
  • the hinge line between the forepart 11 and the back part 12 is located approximately at the separation line between the forward portion 18 and the heel portion 19 of the last 17.
  • the shoe is constructed on the combination such as is shown in FIGS. 4 and 5.
  • the shoe may be of any well known construction such as a Goodyear welt, cement, lockstitch or any such construction as is well known in the art.
  • FIGS. 4 and 5 there is shown a shoe construction 24 built by fastening the component parts upon a thin piece of insole material 26 which is rst tacked or otherwise temporarily fastened to the insert 10 in the initial construction of the shoe.
  • the upper 27, outsole 28 and heel 29 are all assembled into the shoe 24 in the usual manner as would be accomplished were the shoe being built upon the last 17 without the insert 10 applied thereto.
  • the last 17 is opened to provide release of the shoe 24 from the last, the heel end of the shoe being lifted from the heel portion 19 as shown in that figure.
  • the back part 12 of the insert 10 is now free to move relative to the heel portion 19 of the last 17, and folds down upon the heel portion 19 of the last to provide for removal of the shoe 214 from the last 17 in the usual manner.
  • both the forepart 11 and the back part 12 of the insert 10 are chamfered adjacent the hinge 16 so that a wide range of movement is provided for between the two insert parts.
  • the insert 10 With the removal of the shoe 24 from the last 18, the insert 10 remains on the last, and another run of contour insole shoes may be made employing the last and insert combination. However, should it be desired to change over to a run of non-contoured insole shoes, the insert 10 is easily removed from the last 18, and, because of its size, requires a relatively small storage space to accommodate it until it is again applied to the last, as hereinbefore described.
  • the shoe structure 24 is similar in all respects to a shoe manufactured on the standard last 17 without the insert 10, but for a space provided at the sole of the shoe, and a contour in the insole portion of the shoe which has been constructed to receive a contoured shaped insole.
  • the shoe '24 as now constructed, is provided with an inner sole surface contour 31 which substantially conforms to the surface 14 of the last insert.
  • FIGS. 6 and 7 there is shown a contoured insole 33 having a contour surface 34 shaped to conform to the wearers foot and a sole surface 36. superimposed on the insole 33, as shown in the phantom lines of FIG. 7, is the last insert 10.
  • the sole surface 36 of the insole 33 and the sole surface of the insert 10 are identical, while the conforming surface 13 of the insert 10 varies substatially from the contoured surface 34 of the contour insole.
  • the difference in contour between the surface 34 of the insole 33 and the surface 13 of the insert 10 is generally that portion of the standard last which is removed to provide a last on which contoured insole shoes may be fabricated, in prior art shoe construction.
  • the thickness dimension of the insert 10 is dictated by the thickness of the insole 33 to be placed in the shoe after removal from the last.
  • the thickness dimension of the insert is such that a shoe manufactured by employing the insert, and having the contoured insole subsequently inserted therein, provides the wearer the proper shoe size corresponding to the standard last size on which the shoe was made.
  • the various objects of the present invention are accomplished by providing the insert 10 which when used with a standard last to manufacture contoured insole shoes enables a shoe manufacturer to produce contoured insole shoes with a minimum of investment. Additionally, the manufacturer may quickly and easily convert to contoured insole shoe manufacture and back to manufacture of non-contoured insole shoes should the need arise to do so.
  • a method of manufacturing a shoe having a contoured insole on a last having a standard shaped sole surface which comprises the steps of providing an insert member having a rst surface contoured for mating engagement with the sole surface of the last and a second surface contoured in accordance with the bottom surface of an insole to be inserted in the shoe when removed from the last, attaching the insert to the last with said first contoured surface engaging the sole surface of the last, assembling components including an upper and an outsole on said last to form a partially completed shoe Structure, removing said partially completed shoe structure from said last and inserting a contoured insole in the shoe structure.
  • a method of manufacturing a shoe having a contoured insole on a last comprising a forward portion and a heel portion forming a standard shaped sole surface and movable between an open and a closed position, which comprises the steps of providing an insert member having a forepart and a back part hingedly connected for relative movement one to the other and a surface contoured for mating engagement with the last sole,
  • An article in accordance with claim 7 which further includes a heel plate disposed on said opposite surface of said back part.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US734168A 1968-06-03 1968-06-03 Contoured insoles Expired - Lifetime US3497892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73416868A 1968-06-03 1968-06-03

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US3497892A true US3497892A (en) 1970-03-03

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GB (1) GB1227667A (nl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908961A (en) * 1986-01-28 1990-03-20 William Green And Son Limited Flexible shoe with sectioned insole
US5252205A (en) * 1992-09-11 1993-10-12 Earle Schaller Unitary clarifier baffle and integrated baffle system
US20070250346A1 (en) * 2005-09-30 2007-10-25 Luciano Robert A Jr System and method for processing a multiple prescription order
US20090083914A1 (en) * 2006-01-20 2009-04-02 Ottaviani S.R.L. Manufacturing system for assembled shoe with shock-absorbing insert in the heel
US20100089821A1 (en) * 2008-10-15 2010-04-15 Earle Schaller Density baffle for clarifier tank
US20100193423A1 (en) * 2008-04-23 2010-08-05 Earle Schaller Dual surface density baffle for clarifier tank
US20140157631A1 (en) * 2005-02-15 2014-06-12 Pinwrest Development Group, Llc Footwear impact distribution
CN111671202A (zh) * 2020-06-17 2020-09-18 韦锦桥 一种鞋子腰窝垫的制备方法及其应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1120490A (en) * 1914-06-08 1914-12-08 Mathew Hilgert Last.
US2138974A (en) * 1935-02-04 1938-12-06 United Shoe Machinery Corp Method of making inner molds for shoes
US3181186A (en) * 1963-03-13 1965-05-04 Vulcan Corp Shoe last construction
US3266178A (en) * 1960-04-04 1966-08-16 Francis M Gilkerson Form fitting insole for shoes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1120490A (en) * 1914-06-08 1914-12-08 Mathew Hilgert Last.
US2138974A (en) * 1935-02-04 1938-12-06 United Shoe Machinery Corp Method of making inner molds for shoes
US3266178A (en) * 1960-04-04 1966-08-16 Francis M Gilkerson Form fitting insole for shoes
US3181186A (en) * 1963-03-13 1965-05-04 Vulcan Corp Shoe last construction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908961A (en) * 1986-01-28 1990-03-20 William Green And Son Limited Flexible shoe with sectioned insole
US5252205A (en) * 1992-09-11 1993-10-12 Earle Schaller Unitary clarifier baffle and integrated baffle system
US20140157631A1 (en) * 2005-02-15 2014-06-12 Pinwrest Development Group, Llc Footwear impact distribution
US10939724B2 (en) 2005-02-15 2021-03-09 Pinwrest Development Group, Llc Protective articles having a plurality of core members
US9609910B2 (en) * 2005-02-15 2017-04-04 Pinwrest Development Group, Llc Footwear impact distribution
US20070250346A1 (en) * 2005-09-30 2007-10-25 Luciano Robert A Jr System and method for processing a multiple prescription order
US20090083914A1 (en) * 2006-01-20 2009-04-02 Ottaviani S.R.L. Manufacturing system for assembled shoe with shock-absorbing insert in the heel
US8042212B2 (en) * 2006-01-20 2011-10-25 Ottaviani S.R.L. Manufacturing system for assembled shoe with shock-absorbing insert in the heel
US20100193423A1 (en) * 2008-04-23 2010-08-05 Earle Schaller Dual surface density baffle for clarifier tank
US20110233135A1 (en) * 2008-10-15 2011-09-29 Earle Schaller Density baffle for clarifier tank
US7971731B2 (en) 2008-10-15 2011-07-05 Earle Schaller Density baffle for clarifier tank
US20100089821A1 (en) * 2008-10-15 2010-04-15 Earle Schaller Density baffle for clarifier tank
CN111671202A (zh) * 2020-06-17 2020-09-18 韦锦桥 一种鞋子腰窝垫的制备方法及其应用

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Publication number Publication date
GB1227667A (nl) 1971-04-07

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