US3591879A - Method of attaching insoles - Google Patents
Method of attaching insoles Download PDFInfo
- Publication number
- US3591879A US3591879A US871223*A US3591879DA US3591879A US 3591879 A US3591879 A US 3591879A US 3591879D A US3591879D A US 3591879DA US 3591879 A US3591879 A US 3591879A
- Authority
- US
- United States
- Prior art keywords
- insole
- heel
- last
- toe
- forepart
- 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
-
- 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
- A43B7/1455—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 with special properties
-
- 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
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D23/00—Single parts for pulling-over or lasting machines
- A43D23/04—Last-carriers; Shoe-guides
Definitions
- Megley ABSTRACT A novel method of temporarily locating an insole on a last bottom.
- the insole comprises discrete forepart and heel portions joined by an extensible portion, the forepart and heel portions each having locating holes therein to facilitate positioning of the insole on the last.
- the forepart and heel portions are joined by means of extensible material such as polyurethane foam interposed between overlapped margins of the two portions.
- One of the various objects of the present invention is to providean insole and method which facilitates accurate positioning of toe and heel portions of the insole on the bottom of a last.
- the invention provides, in accordance with one of its several features, a shoe insole comprising a forepart portion having a locating hole therein joined in overlapped relationship with a heel portion having a locating hole therein by means of material interposed between overlapped margins of said portions, the interposed material being extensible to allow relative movement between the forepart and heel portions to facilitate positioning of the insole against the bottom of a last.
- an insole illustrative of certain features of this invention having extensible material in the form of a strip of polyurethane foam between overlapping margins of a flexible toe and forepart portion and a more'rigid heel and waist, portion.
- Insoles embodying the invention are made shorter lengthwise than the standard insole and are extended, through the provision of the extensible polyurethane foam portion, accurately to fit the bottom of a last at its toe and heel ends.
- the insole hereinafter described includes a flexible toe and forepart portion it could include a flexible heel and waist portion joined in overlapped relationship with a more rigid toe portion without departing from the scope of the invention.
- the insole is provided with locating holes at the toe and heel portions to facilitate practice of the method of this invention.
- a method, illustrative of method aspects of the invention of temporarily attaching an insole, having a toe portion joined with a heel portion by means of an extensible portion, to a last without the use of tacks or other driven fasteners.
- a location pin provided on the bottom of the heel portion of the last is received in a location hole provided in the heel portion of the insole, the relationship of the positions of the hole and pin being such that the pin accurately positions the heel and waist portions of the insole.
- the toe portion of the insole is then extended toewardly to a location pin on the bottom of the toe portion of the last which is inserted into location hole in the toe portion of the insole, the relationship of the positions of the toeward hole and pin being such that said pin accurately positions the toe and forepart portion of the insole.
- the toe and forepart portion can be located initially and the insole extended toward the heel to locate the heel on the heel pin.
- FIG. 1 is a view of the bottom of an insole embodying certain aspects of the invention
- FIG. 2 is a side view of the insole illustrated in FIG. 1 and attached to a last;
- FIG. 3 is a plan view of a second illustrative insole.
- FIG. 4 is a plan view of a third illustrative insole.
- the illustrative insole shown in FIGS. 1 and 2, referred to generally by the reference number 10, comprises a toe and forepart portion 12 made of conventional flexible insoling material.
- a more rigid heel and waist portion 14 has a leading edge face 16 (FIG. 2) skived to provide an underlay portion of a lap joint for joining the portions 12 and 14.
- the insole is moulded to accommodate the bottom contours of the last.
- the portion 12 has a scarfed face 20.
- the portions 12 and 14 have location holes 28 and 30 therein for use in locating the insole on a last, as hereinafter described.
- a piece of extensible joining material 18 made of suitable-density polyurethane foam and joined by means of suitable adhesive to the face 16 and to the scarf face 20 (FIG. 2) of the forepart portion 12.
- the flexible portion of the insole is joined to the more rigid portion through the intermediary of the material 18.
- the insole 10 is cut from a prepared composite sheet from which a plurality of insoles can be cut.
- a strip of the joining material 18 is adhered to a longitudinal margin of a strip of material which provides the heel and waist portion 14 of the insole, said margin is skived to provide the face 16 and coated with adhesive for securing the material 18 thereto.
- the strip of joining material 18 has a width similar to the width of the face 16.
- a strip of material which provides the flexible toe and forepart portion 12 of the insole is skived along one edge to provide the scarf face 20.
- This face 20 has a width similar to the width of the joining material and is coated with adhesive and applied to a face of the material 18 opposite to its face adhered to the face 16.
- the three layers are pressed together to form a composite sheet for use in making a plurality of insoles having flexible toe and forepart portions and more rigid heel and waist portions joined in overlapped relationship by means of an extensible material.
- the insoles are out about a half size undersize with respect to the lengths of the lasts with which they are to be assembled (i.e. about one-sixth of an inch) for a purpose hereinafter explained.
- the polyurethane foam joining material 18 as well as being compressible and thus avoiding unnecessary thickness in the insole in a finished shoe, is extensible in directions of shear of the joining material. This extensibility permits limited relative movement between the insole portions 12 and 14, both in lengthwise and widthwise directions. Assuming the heel and waist portion 14 is correctly positioned on the bottom of a last,- any discrepancy in the lie of the toe and forepart portion 12 with respect to the bottom of the last can be corrected by moving the portion 12 relative to the portion 14.
- the last 22 is provided with a pair of location projections in the form of pins, 24 and 26 respectively, which project outwardly from the bottom of the last.
- the pin 24 is positioned a predetermined distance from the heel end of the last and the pin 26 is positioned a predetermined distance from the toe end of the last.
- Two location holes 28 and 30 (FIG. 1), of a size to fit the pins, are punched respectively in the portions 14 and 12 of the insole.
- the hole 28 is positioned in the insole in relation to the heel end thereof at a position in the heel portion corresponding to the position occupied by the pin 24 in relation to the corresponding portion of the last bottom and the hole 30 is positioned in the insole in relation to the toe end thereof at a position in the toe portion corresponding to the position occupied by the pin 26 in relation to the corresponding portion of the last bottom and irrespective of the position of the hole 28.
- the portion 14 of the insole 10 is positioned on the bottom of the last 22 by locating the pin 24 in the hole 28.
- the pin 24 is a push-fit in the hole 28.
- the insole is cut undersize in length and the insole is extended by moving the portion 12 relatively to the portion 14 so that the pin 26 can be inserted in the hole 30.
- the polyurethane foam oining material 18 has an elastic characteristic such that the extended insole positioned on the last by the pins 24 and 26 tends to contract so that the insole is gripped on the pins which attach it to the last and retain it against the bottom of the last.
- the pin 26 has a recess 32 which helps to retain the insole in position.
- the pin 26 is chamfered to provide a sloping face 34.
- the back of the shoe is urged off the back part of the last, the insole being lifted off the pin 24, and the shoe is then moved toewardly of the last, the insole being carried away from the last by the sloping face 34.
- the sloping face 34 makes it unlikely that the portion 12 ofthe insole will bind on the pin 26.
- the joining material 18 is less in width than width of the face 16 and the scarf face 20.
- the faces 16 and are completely coated with adhesive so that when the insole is supported in position on a last bottom the faces 16 and 20 are pressed together (compressing the polyurethane foam), portions thereof coming together rigidly to secure the portions 12 and 14 of the insole in overlapped relationship.
- an insole may comprise a flexible forepart portion, and more rigid toe and heel and waist portions.
- the flexible forepart portion is joined to the more rigid toe portion by a lap joint.
- joining material 18 may be sandwiched in said lap joint instead of the lap joint joining the flexible portion to the heel and waist portion.
- FIG. 3 shows a second insole embodying further features of this invention which facilitate use of the above described method comprising a flexible forepart portion 40 joined in overlapped relationship with a more rigid heel and waist portion 42 and a more rigid toe portion 44.
- Location holes 46 and 48 correspond respectively with the holes 28 and to locate the insole on a last having location pins similar to the pins 24 and 26.
- the forepart portion provides an extensible portion, being rigidly secured in overlapped relationship with the portions 42 and 44 by means of adhesive.
- the heel and waist portion 42 is skived to form an underlay 50 and the toe portion is skived to form an underlay 52.
- a plurality of relatively short slashes 54 are made extending across the forepart portion.
- the slashes 54 extend completely through the substance of the forepart material so that lengthwise stressing of the insole causes the slashes to gap and thus effect extension of the forepart portion of the insole
- a third illustrative insole 60 shown in FIG. 4 is similar to the insole shown in FIG. 3 in that a forepart portion 62 is made extensible by being slashed completely through the substance of the forepart material. However, in this case a single slash 64 only is made extending across most of the width of the forepart portion.
- Holes 66 extending through the insole 60 at either end of the slash 64 minimize the likelihood of the slash running out to the opposite side edges of the insole.
- a covering in the form of a piece of readily compressible and extensible polyurethane foam 68 is stuck over the slash 64 on the top surface of the insole, i.e., the surface nearest to the foot in the finished shoe, to avoid the likelihood ofdiscomfort or trapping of the foot of the wearer of the finished shoe.
- insole includes a forepart portion joined in overlapped relationship with a heel portion and said extensible portion is provided by a strip of polyurethane foam adhered between overlapped margins of said portions, the overlapped margins being wider than the strip of polyurethane foam, and wherein, following supporting of the insole in position against the last bottom, said margins are pressed together so that adhesively coated portions thereof come together rigidly to secure the forepart portion and heel portion in overlapped relationship.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67059867A | 1967-09-26 | 1967-09-26 | |
AU16020/67A AU1602067A (en) | 1967-09-26 | 1967-12-29 | Improvements in or relating to shoe insoles and their use in the manufacture of shoes |
US87122369A | 1969-06-13 | 1969-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3591879A true US3591879A (en) | 1971-07-13 |
Family
ID=27152236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US871223*A Expired - Lifetime US3591879A (en) | 1967-09-26 | 1969-06-13 | Method of attaching insoles |
Country Status (1)
Country | Link |
---|---|
US (1) | US3591879A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3021991A1 (en) * | 1980-06-12 | 1981-12-24 | Kurt Coelsch | METHOD FOR THE PRODUCTION OF FOOTWEAR AND FOOTWEAR TRAINED BY THIS METHOD |
US20040128861A1 (en) * | 2001-04-27 | 2004-07-08 | Jean-Jacques Durand | Sole with extensible structure footwear equipped with same and method for mounting same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691227A (en) * | 1951-12-11 | 1954-10-12 | Sachs Maxwell | Footwear |
US3144669A (en) * | 1962-06-07 | 1964-08-18 | Paul A Lamy | Inner sole spotter and retainer |
US3187358A (en) * | 1962-12-12 | 1965-06-08 | United Shoe Machinery Corp | Insole locating and holding means |
-
1969
- 1969-06-13 US US871223*A patent/US3591879A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691227A (en) * | 1951-12-11 | 1954-10-12 | Sachs Maxwell | Footwear |
US3144669A (en) * | 1962-06-07 | 1964-08-18 | Paul A Lamy | Inner sole spotter and retainer |
US3187358A (en) * | 1962-12-12 | 1965-06-08 | United Shoe Machinery Corp | Insole locating and holding means |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3021991A1 (en) * | 1980-06-12 | 1981-12-24 | Kurt Coelsch | METHOD FOR THE PRODUCTION OF FOOTWEAR AND FOOTWEAR TRAINED BY THIS METHOD |
US20040128861A1 (en) * | 2001-04-27 | 2004-07-08 | Jean-Jacques Durand | Sole with extensible structure footwear equipped with same and method for mounting same |
US7155845B2 (en) * | 2001-04-27 | 2007-01-02 | Exten.S | Sole with extensible structure footwear equipped with same and method for mounting same |
US7621058B2 (en) | 2001-04-27 | 2009-11-24 | Exten.S | Sole with extensible structure |
US7966751B2 (en) | 2001-04-27 | 2011-06-28 | Exten.S | Sole with extensible structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2761224A (en) | Shoe with hollow welt for detachable upper | |
US3591879A (en) | Method of attaching insoles | |
US2438821A (en) | Platform type shoe and method of making same | |
US3514880A (en) | Extensible insoles | |
US2075940A (en) | Manufacture of shoe bottom units | |
US2127634A (en) | Manufacture of shoe bottom units | |
GB1124192A (en) | Improvements in or relating to shoe manufacture | |
US1927211A (en) | Dancing shoe and the making thereof | |
US2135170A (en) | Shoe and method of making the same | |
US2483921A (en) | Method of making moccasin uppers | |
US2212516A (en) | Shoe and method of making the same | |
US2214791A (en) | Manufacture op shoes | |
US2346651A (en) | Method of making shoes | |
US2353396A (en) | Method of making shoes | |
US2053120A (en) | Method of shoemaking | |
US2168485A (en) | Method and means for relatively positioning soles and shoes | |
US3530597A (en) | Beveled core shoe construction and process for same | |
US1722029A (en) | Shoe and method of making the same | |
US3747146A (en) | Footwear construction | |
US2134259A (en) | Shoe | |
US2688758A (en) | Method of making flexible footwear | |
US2303022A (en) | Slotted heel and sole construction | |
US1998125A (en) | Method of making ribbed insoles | |
US2272824A (en) | Process for lasting shoes | |
US2269542A (en) | Wedge heel shoe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: EMHART ENTERPRISES CORP.,CONNECTICUT Free format text: NOTARIAL CERTIFICATION BY A NOTARY PUBLIC, ELIZABETH J. KULOWSKI, SHOWING CHANGE OF ADDRESS EFFECTIVE MAY 8, 1987;ASSIGNOR:EMHART ENTERPRISES CORP., 140 FEDERAL ST., BOSTON, MA;REEL/FRAME:004826/0604 Effective date: 19871102 Owner name: EMHART ENTERPRISES CORP. 426 COLT HIGHWAY, FARMING Free format text: NOTARIAL CERTIFICATION BY A NOTARY PUBLIC, ELIZABETH J. KULOWSKI, SHOWING CHANGE OF ADDRESS EFFECTIVE MAY 8, 1987.;ASSIGNOR:EMHART ENTERPRISES CORP., 140 FEDERAL ST., BOSTON, MA;REEL/FRAME:004826/0604 Effective date: 19871102 Owner name: EMHART ENTERPRISES CORP.,CONNECTICUT Free format text: CHANGE OF NAME;ASSIGNOR:USM CORPORATION;REEL/FRAME:004826/0599 Effective date: 19870505 Owner name: EMHART INDUSTRIES, INC., A CORP. OF CONNECTICUT Free format text: MERGER;ASSIGNOR:EMHART ENTERPRISES CORP.;REEL/FRAME:004858/0795 Effective date: 19870911 Owner name: EMHART ENTERPRISES CORP. Free format text: CHANGE OF NAME;ASSIGNOR:USM CORPORATION;REEL/FRAME:004826/0599 Effective date: 19870505 Owner name: USM CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:UNITED SHOE MACHINERY CORPORATION;REEL/FRAME:004826/0596 Effective date: 19770527 |