GB2142217A

GB2142217A - A shoe construction

Info

Publication number: GB2142217A
Application number: GB08317474A
Authority: GB
Inventors: Ping Chin Yong
Original assignee: JOHNSON SHOES BERHAD
Current assignee: JOHNSON SHOES BERHAD
Priority date: 1983-06-28
Filing date: 1983-06-28
Publication date: 1985-01-16
Also published as: GB2142217B; GB8317474D0

Abstract

A shoe construction and a method of making the shoe construction, the construction including an upper (1) secured to a sole (7), there being a flexible sock (2) and layer of a compound forming an insole (3) interposed between the sock and the sole. The compound is of a resilient but malleable nature capable of moving, upon initial use of the shoe, from areas of high foot pressure to areas to lower foot pressure to form and retain an impression of the foot in the shoe, the sock (2) flexing to conform to this impression. <IMAGE>

Description

SPECIFICATION A shoe construction This invention relates two a shoe construction.

One known shoe construction is a so-called Californian construction, also known as a "force or slip lasted" shoe construction. The main method of making a conventional Californian construction con sists of stitching together an upper, sock and a rand, the stitches being mainly lock-stitched. A last is then forced into the upper during the lasting process and then an insole or inset, possibly of polyesterfoam acting as a cushion, which can be in many shapes, is placed inbetween the sock and the rand. The rand is lasted overthe insole to secure it and then the sole is stuck on to completethe construction.

According to one aspect ofthe present invention, there is provided a shoe construction including an upper secured to a sole, there being a flexible sock incorporated above the sole of the shoe and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial use of the shoe, from areas of high foot pressureto areas of lowerfoot pressuretoform and retain an impression ofthefoot in the shoe, the sock flexing to comform to this impression.

According to another aspect ofthe present invention, there is provided a method of making a shoe construction comprising securing an upperto a sole, with a flexible sock incorporated above the sole and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial useoftheshoe,from areas of high foot pressureto areas of lowerfoot pressureto form and retain an impression of the foot in the shoe, the sock flexing to comform to this impression.

The compound can be a rubber based compound including in it calcium carbonate, sulphur and rubber processing oil.

Preferably, the insoleformedfrom the compound is cutto the exact shape of the shoe last and is flat and uniform in thickness when it is initially placed between the sock and the sole.

Preferably, a mid-sole is placed between the insole and the sole. This mid-sole can be made of a polyester foam.

The solecan be made ofvulcanised rubber.

The sock can be made of leather, as can be the upper.

Preferably, a rand is incorporated in the construction, the upper, sock and rand being stitched together.

For a better understanding of the invention and to show howthe same may be carried into effect, reference will now be made, byway of example, to the accompanying drawing, in which the singlefigure is a diagrammatic cross-sectional view th rough a shoe construction according to the invention.

The shoe construction shown in the drawing includes a leather upper 1, a leather sock 2, forming an inner sole ofthe shoe, the sock 2 covering a layer forming a platform or insole 3, the insole 3 being made of a compound that has a resilient but malleable nature capable of moving, upon initial use oftheshoe, from areas of high foot pressure to areas of lowerfoot pressure to form and retain an impression of the foot in the shoe, the sock 2flexing to conform to this impression. A mid-sole 4, preferablyoffibreboard, is provided beneath the insole3 and a leather platform cover or rand 5 is stitched to the outside ofthe upper 1, the stitching passing through the upper 1 and the sock 2, as shown at 6. The outside of the rand 5 is turned over itself and is stuckto the mid-sole 4.A rubber sole 7 is then stuck to the base of the mid-sole 4 and the rand 5 to form the base ofthe shoe.

The compound forming the insole 3 can be formed of 100 parts rubber, 10 parts calcium carbonate, 0.5 parts sulphur and 4 parts rubber processing oil. The thickness ofthe insole can be approximateiy 5 millimeters.

With the present construction, the sock 2 of a new, unworn shoe will have a flat shape but after some wearing, the insole 3will conform to the exact shape ofthefoot by reason of the foot pressure. On initial wearing, the insole 3 will conform to the individual bottom shape of the footand the compound from which the sole is made is ableto flowto respective areaswherethereislowfootpressure, heatand pressure of body weight contributing to the softening ofthe compound. On furtherwearing,the compound will form the exact impression of the base of the foot andsubsequentlythesock2will conform to this impression. Thus, each time the wearer puts on the shoe, the foot will fit exactly onto the impression.

With this set impression, the insole 3 is able to supportthefoot more effectively especially at the arches and inbetween the toes. Moreover, the compound being rubber based, the insole is resilient and shock or pressure absorbing, thus producing a boun cyeffectwhich is light and comfortable to the foot.

With the present construction, iasting can be done by hand.

1. A shoe construction including an upper secured to a sole,there being a flexible sock incorporated above the sole of the shoe and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial use of the shoe, from areas of high foot pressure to areas of lowerfoot pressure to form and retain an impress ion ofthe the foot in the shoe, the sock flexing to conform to this impression.

2. A method of making a shoe construction comprising securing an upperto a sole, with aflexible sock incorporated above the sole and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A shoe construction This invention relates two a shoe construction. One known shoe construction is a so-called Californian construction, also known as a "force or slip lasted" shoe construction. The main method of making a conventional Californian construction con sists of stitching together an upper, sock and a rand, the stitches being mainly lock-stitched. A last is then forced into the upper during the lasting process and then an insole or inset, possibly of polyesterfoam acting as a cushion, which can be in many shapes, is placed inbetween the sock and the rand. The rand is lasted overthe insole to secure it and then the sole is stuck on to completethe construction. According to one aspect ofthe present invention, there is provided a shoe construction including an upper secured to a sole, there being a flexible sock incorporated above the sole of the shoe and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial use of the shoe, from areas of high foot pressureto areas of lowerfoot pressuretoform and retain an impression ofthefoot in the shoe, the sock flexing to comform to this impression. According to another aspect ofthe present invention, there is provided a method of making a shoe construction comprising securing an upperto a sole, with a flexible sock incorporated above the sole and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial useoftheshoe,from areas of high foot pressureto areas of lowerfoot pressureto form and retain an impression of the foot in the shoe, the sock flexing to comform to this impression. The compound can be a rubber based compound including in it calcium carbonate, sulphur and rubber processing oil. Preferably, the insoleformedfrom the compound is cutto the exact shape of the shoe last and is flat and uniform in thickness when it is initially placed between the sock and the sole. Preferably, a mid-sole is placed between the insole and the sole. This mid-sole can be made of a polyester foam. The solecan be made ofvulcanised rubber. The sock can be made of leather, as can be the upper. Preferably, a rand is incorporated in the construction, the upper, sock and rand being stitched together. For a better understanding of the invention and to show howthe same may be carried into effect, reference will now be made, byway of example, to the accompanying drawing, in which the singlefigure is a diagrammatic cross-sectional view th rough a shoe construction according to the invention. The shoe construction shown in the drawing includes a leather upper 1, a leather sock 2, forming an inner sole ofthe shoe, the sock 2 covering a layer forming a platform or insole 3, the insole 3 being made of a compound that has a resilient but malleable nature capable of moving, upon initial use oftheshoe, from areas of high foot pressure to areas of lowerfoot pressure to form and retain an impression of the foot in the shoe, the sock 2flexing to conform to this impression. A mid-sole 4, preferablyoffibreboard, is provided beneath the insole3 and a leather platform cover or rand 5 is stitched to the outside ofthe upper 1, the stitching passing through the upper 1 and the sock 2, as shown at 6. The outside of the rand 5 is turned over itself and is stuckto the mid-sole 4.A rubber sole 7 is then stuck to the base of the mid-sole 4 and the rand 5 to form the base ofthe shoe. The compound forming the insole 3 can be formed of 100 parts rubber, 10 parts calcium carbonate, 0.5 parts sulphur and 4 parts rubber processing oil. The thickness ofthe insole can be approximateiy 5 millimeters. With the present construction, the sock 2 of a new, unworn shoe will have a flat shape but after some wearing, the insole 3will conform to the exact shape ofthefoot by reason of the foot pressure. On initial wearing, the insole 3 will conform to the individual bottom shape of the footand the compound from which the sole is made is ableto flowto respective areaswherethereislowfootpressure, heatand pressure of body weight contributing to the softening ofthe compound. On furtherwearing,the compound will form the exact impression of the base of the foot andsubsequentlythesock2will conform to this impression. Thus, each time the wearer puts on the shoe, the foot will fit exactly onto the impression. With this set impression, the insole 3 is able to supportthefoot more effectively especially at the arches and inbetween the toes. Moreover, the compound being rubber based, the insole is resilient and shock or pressure absorbing, thus producing a boun cyeffectwhich is light and comfortable to the foot. With the present construction, iasting can be done by hand. CLAIMS

2. A method of making a shoe construction comprising securing an upperto a sole, with aflexible sock incorporated above the sole and a layer of a compound forming an insole interposed between the sock and the sole, said compound being of a resilient but malleable nature capable of moving, upon initial use of the shoe, from areas of high foot pressure to areas of lowerfoot pressure to form and retain an impression of the foot in the shoe, the sock flexing to conform to this impression.

3. Ashoe construction or a method of making a shoe construction as claimed in claim 1 or 2, wherein said compound is a rubber-based compound.

4. A shoe construction or a method of making a shoe construction as claimed in claim 3, wherein said rubber based compound includes in it calcium carbonate, sulphur and rubber processing oil.

5. A shoe construction or a method of making a shoe construction as claimed in claim 4, wherein said compound is formed of 100 parts rubber, 10 parts calcium carbonate, 0.5 part sulphur and 4 parts rubber processing oil.

6. A shoe construction or a method of making a shoe construction as claimed in any one of the preceding claims, wherein said insole is cut to the exact shape of a shoe last and is flat and uniform in thickness when it is initially placed between the sock and sole.

7. A shoe construction or a method of making a shoe construction as claimed in claim 6, wherein the thickness of the insole is substantially5 mm.

8. Ashoe construction or a method of making a shoe construction as claimed in any one of the preceding claims, wherein a mid-sole is placed between the insole and the sole.

9. Ashoe construction or a method of making a shoe construction as claimed in claim 8, wherein said mid-sole is made of a polyester foam.

10. Ashoeconstruction ora method of making shoe construction as claimed in claim 8, wherein said mid-sole is made offibreboard.

1 A shoe construction or a method of making a shoe construction as claimed in any one of the preceding claims, wherein said sole is made of a vulcanised rubber.

12. A shoe construction ora method of making a shoe construction as claimed in any one of the preceding claims,wherein saidsockandlorsaid upper is made of leather.

13. Ashoe construction or a method of making a shoe construction as claimed in any one of the preceding claims and incorporating a rand, the upper, sock and rand being stitched together.

14. A shoe construction, substantially as hereinbefore described with referencetothe accompanying drawing.

15. A method of making a shoe construction, substantially as hereinbefore described with refer encetotheaccompanying drawing.