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EP0553071A1 - Method for manufacturing moulded footwear in different widths. - Google Patents

Method for manufacturing moulded footwear in different widths.

Info

Publication number
EP0553071A1
EP0553071A1 EP90915275A EP90915275A EP0553071A1 EP 0553071 A1 EP0553071 A1 EP 0553071A1 EP 90915275 A EP90915275 A EP 90915275A EP 90915275 A EP90915275 A EP 90915275A EP 0553071 A1 EP0553071 A1 EP 0553071A1
Authority
EP
European Patent Office
Prior art keywords
footwear
sole
moulded
lower portion
boot
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.)
Granted
Application number
EP90915275A
Other languages
German (de)
French (fr)
Other versions
EP0553071B1 (en
Inventor
Icaro Olivieri
Rene Bourque
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.)
Canstar Sports Group Inc
Original Assignee
Canstar Sports Group Inc
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 Canstar Sports Group Inc filed Critical Canstar Sports Group Inc
Publication of EP0553071A1 publication Critical patent/EP0553071A1/en
Application granted granted Critical
Publication of EP0553071B1 publication Critical patent/EP0553071B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

  • the present invention relates to a method for manufacturing moulded footwear in different widths.
  • Skate and boot widths are handled differently in different markets.
  • boots are made with a larger or average width.
  • many devices are available to accommodate the fit of a boot to feet of different widths such as screw adjusted devices.
  • U.S. patent no. 4,353,173 (Paguet) is an illustration of insoles for skate boots.
  • the insole is secured to a conventional last and the boot upper is finally mounted to same.
  • the present invention relates to a method of manufacturing moulded skate and ski boots having different widths.
  • the process in accordance to the present invention is the manufacture of a thermoplastic moulded footwear (upper) made using the injection moulding method.
  • the upper is made in one piece with the bottom portion having a flange all around and a transverse strap or the like joining the flanges.
  • the idea is to provide the upper and more particularly, the lower portion of same with a weakened area so as to help the thermoforming, therefore a sole with a thin section can be used.
  • the material used is of a thermoplastic elastomer type, which has a specific elasticity and, most importantly, has a thermoforming capability.
  • thermoforming process consists of heating the thermoplastic material forming ; the upper to an optimal point of malleability and then cooling it once it has taken on the desired shape.
  • Another object of the present invention is to provide a moulded boot which will not have the drawbacks of prior art.
  • Still another object of the present invention is to provide such a method to adjust to width of a moulded boot, which is economical to use.
  • Yet another object of the present invention is to provide a method which can easily be adapted to large scale manufacturing.
  • Figures 1 to 7 show the manufacturing process in accordance with a first embodiment of the present invention.
  • Figures 8 to 11 show the manufacturing method in accordance with a second embodiment of the present invention.
  • Figures 12 to 14 show the manufacturing method in accordance with a third embodiment of the present invention.
  • Figure 15 shows examples of the final products.
  • the basic elements of the first embodiment are: an already moulded boot 10 (made according to a conventional manufacturing process) , an insole 15, also already moulded or die cut to the desired width by conventional manufacturing processes and finally, a last diagrammatically indicated by reference numeral 20.
  • the moulded boot 10 is provided with a thinned inner area 25 as shown in figure 2 to receive the insole 15 as it will be described hereinafter.
  • the moulded boot 10 is preferably made in one piece and with a thermoplastic material of the elastomeric type which has a specific elasticity and, most importantly, a thermoforming capability.
  • the insole 15 may also be made of a thermoplastic material.
  • the sole section 30, the front section 35 and the heel section 40 of the insole 15 are designed to define a specific front and heel width. Such insoles of varying widths are much less costly to produce than corresponding boot uppers.
  • the bottom portion 42 of the moulded boot is provided with a "weakened area" 45 so as to allow lateral movement as it is necessary in accordance to the present invention and as it will be appreciated hereinafter.
  • the weakened area 45 comprises two openings 50a and 50b separated by a flange 55. The openings 50a and 50b, and the flange 55 are obtained during the manufacturing process of the moulded boot.
  • the purpose of the weakened area is to allow movement of the lower portion of the moulded boot 10 so as to adjust the width of same.
  • the bottom portion 42 can be provided with more than two openings and alternatively, the bottom portion 42 may comprise a thinner walled section.
  • the first step of the manufacturing process is to position the preformed insole 15 and the moulded boot 10 over the last 20. Then, the moulded boot 10 is stretched to fit snugly over the insole.
  • a side lasting machine (not shown) is used to push the moulded boot 10 against the last 20 to shape the contour and at the same time, nails 60 or other equivalent fixation means are provided on the periphery of the bottom portion 42 of the moulded boot 10.
  • a finishing sole 65 is affixed to the bottom portion 42 of the moulded boot.
  • Thermo-glue (not shown) is applied on the bottom portion, preferably said glue should be applied to both surfaces. Thereafter, the glue is reactivated under heat and the boot 10 and the finishing sole 65 are pressed together.
  • the process described above is mainly used to adjust the moulded boot to a width larger than what has been originally moulded since the boot 10 and the insole 15 are stretched over the last 20.
  • the two other methods described hereinafter are used to adjust the moulded boot 10 to a width smaller that what has been originally moulded.
  • the second embodiment of the manufacturing method is shown, wherein 10 is the pre-moulded boot and 70 represents the thin walled bottom or sole portion. In this particular embodiment.
  • the second embodiment uses the following elements, that is the moulded boot 10 and a last 75 provided with a plurality of vacuum holes 80 connected to a channel 85 and to a vacuum pump (not shown) .
  • the first step of this second embodiment is to place the moulded boot 10 over the last 75.
  • the combination moulded boot and the last (lasted boot) ( Figure 9a) is heated to soften the lower portion 86 of the boot.
  • This heating can be done, for example, by placing the lasted boot in an oven 76 such that onlythe bottom and the sides of the boot 86 are heated ( Figure 9b, cross section) .
  • pressure by means of a vacuum pump (not shown) connected to 85, is applied so as to force the hot thermoplastic of the lower portion 86 to take the configuration of the last 75 ( Figure 10) .
  • a finishing sole 65 is affixed to the boot by using the same method as previously described in the first embodiment ( Figure 11) .
  • the basic elements of the footwear sole mould 95 are a cavity structure 105, the latter essentially consisting of a bottom plate 110 and a pair of complementary side plates 115 and 120.
  • the side plates 115 and 120 are arranged for horizontal reciprocal movement toward and away from each other, as indicated by the arrow B.
  • the bottom plate 110 and the last 90 is arranged for vertical reciprocal movement, as indicated by the arrow C.
  • the inwardly directed surface 125 of the side plates 115 and 120 are contoured so as to define, when the latter is in the illustrated positions thereof, the side walls of a cavity 130, the dimensions, width and shape of which are those of the moulded boot to be obtained.
  • Suitable heating means (not shown) are preferably provided in or in association with the cavity structure 130 and/or the last 90. It is important to mention that the heating of the footwear 10 should be limited to the lower portion 135 of said moulded boot 10.
  • the mould 95 When the lasted boot is well positioned in the mould 95, heat is applied to the mould 95 or as mentioned above, heat can be applied to the last 90, in its lower portion thereof, the last and/or the mould are usually made of metal to permit the best heat transmission. Depending of the nature of the thermoplastic material of the footwear, a specific heating time is chosen to obtain an optimal point of malleability. When this point is achieved, the mould 95 and the last 90 will dictate the width of the boot and once said boot has taken the desired shape, plastic is injected therein to form the sole of the boot. The mould is then cooled and the boot demoulded. Throughout this

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

Le procédé décrit, qui sert à fabriquer une chaussure moulée à la largeur désirée, consiste à mouler la structure d'une chaussure comportant une partie supérieure, une partie inférieure et une semelle en matériau thermoplastique; à prévoir dans la semelle de la chaussure une zone affaiblie destinée à permettre un certain déplacement latéral de la partie inférieure, puis à amener de force la partie inférieure de la chaussure sur un organe de réglage de la largeur, afin de régler la partie inférieure de la chaussure moulée à la largeur désirée.The method described, which is used to manufacture a shoe molded to the desired width, consists in molding the structure of a shoe comprising an upper part, a lower part and a sole of thermoplastic material; providing a weakened area in the sole of the shoe to allow some lateral movement of the lower part, then forcing the lower part of the shoe onto a width adjuster, in order to adjust the lower part of the shoe molded to the desired width.

Description

METHOD FOR MANUFACTURING MOULDED FOOTWEAR IN DIFFERENT WIDTHS
FIELD OF THE PRESENT INVENTION
The present invention relates to a method for manufacturing moulded footwear in different widths.
DESCRIPTION OF PRIOR ART
Skate and boot widths are handled differently in different markets. In the ski and moulded skate market, boots are made with a larger or average width. In the ski industry, many devices are available to accommodate the fit of a boot to feet of different widths such as screw adjusted devices.
However, in the hockey industry, width is adjusted only through different thicknesses of an inside liner. Thus, the segment of the population most affected with respect to performance are those people possessing narrow feet since a plurality of layers of liner must be added to the footwear.
U.S. patent no. 4,353,173 (Paguet) is an illustration of insoles for skate boots. In this particular embodiment, the insole is secured to a conventional last and the boot upper is finally mounted to same.
For the stitched boot, different widths are signified by the following symbols: B-C-D-E-EE. To be able to produce these different widths, a last design must be incorporated into the manufacturing proceiss. This design allows different widths by stitching together pieces of material of different lengths over the last. This produces what we call the "upper*1.
SUBSTITUTE SHEET One example of method available is found in U.S. patent no. 3,613,271 (Geller) , in which it is shown a method to reshape a preformed molded boot to an individual's foot. Despite the fact that this type of method provides adequate fittings, it has certain drawbacks. The main drawback is that, since the temperature required to soften the thermoplastic material is kept relatively low for obvious reasons, the reshaped boot has the tendency to take back its initial shape. Furthermore, this method is time consuming and is thus not easily available on a large basis.
SUMMARY OF THE PRESENT INVENTION
The present invention relates to a method of manufacturing moulded skate and ski boots having different widths.
The process in accordance to the present invention is the manufacture of a thermoplastic moulded footwear (upper) made using the injection moulding method. The upper is made in one piece with the bottom portion having a flange all around and a transverse strap or the like joining the flanges. The idea is to provide the upper and more particularly, the lower portion of same with a weakened area so as to help the thermoforming, therefore a sole with a thin section can be used. The material used is of a thermoplastic elastomer type, which has a specific elasticity and, most importantly, has a thermoforming capability.
The thermoforming process consists of heating the thermoplastic material forming ; the upper to an optimal point of malleability and then cooling it once it has taken on the desired shape.
SUBSTITUTE SHEET Based on this thermoforming process, a boot with a semi open sole (upper) is placed in an oven until the desired malleability is reached. The upper is then slipped onto a metal form (last) possessing the dimensions and width desired. In cooling, the upper takes on the shape of the metal form and, at demoulding, the boot (upper) will have the desired width.
A method for manufacturing moulded footwear having a lower portion and a sole portion to a desired width, said footwear having a sole portion, said method comprising the following steps:
- moulding the structure of said footwear with a thermoplastic material;
providing said sole portion with a weakened area so as to allow lateral movement of the said lower portion;
- forcing the lower portion of said footwear over a width adjusting means so as to conform the lower portion of said moulded footwear to the width of said adjusting means;
- attaching a finishing sole to said sole portion.
OBJECTS OF THE PRESENT INVENTION
It is an object of the present invention to provide a method which will allow the adjustment of a moulded boot to a desired width before the sole is attached thereto.
Another object of the present invention is to provide a moulded boot which will not have the drawbacks of prior art.
SUBSTITUTE SHEET Still another object of the present invention is to provide such a method to adjust to width of a moulded boot, which is economical to use.
Yet another object of the present invention is to provide a method which can easily be adapted to large scale manufacturing.
DESCRIPTION OF DRAWINGS
The foregoing and other objects, characteristics and advantages of the present invention will be more clearly understood from the following detailed description thereof when read in conjunction with the accompanying drawings, in which:
Figures 1 to 7 show the manufacturing process in accordance with a first embodiment of the present invention.
Figures 8 to 11 show the manufacturing method in accordance with a second embodiment of the present invention.
Figures 12 to 14 show the manufacturing method in accordance with a third embodiment of the present invention.
Figure 15 shows examples of the final products.
DESCRIPTION OF A PREFERRED EMBODIMENT
The present invention will be described by means of three (3) embodiments.
SUBSTITUTE SHEET FIRST EMBODIMENT
With reference to figures 1 to 8, the basic elements of the first embodiment are: an already moulded boot 10 (made according to a conventional manufacturing process) , an insole 15, also already moulded or die cut to the desired width by conventional manufacturing processes and finally, a last diagrammatically indicated by reference numeral 20.
More precisely, the moulded boot 10 is provided with a thinned inner area 25 as shown in figure 2 to receive the insole 15 as it will be described hereinafter. The moulded boot 10 is preferably made in one piece and with a thermoplastic material of the elastomeric type which has a specific elasticity and, most importantly, a thermoforming capability.
The insole 15 may also be made of a thermoplastic material. The sole section 30, the front section 35 and the heel section 40 of the insole 15 are designed to define a specific front and heel width. Such insoles of varying widths are much less costly to produce than corresponding boot uppers.
As shown in figure 3, the bottom portion 42 of the moulded boot is provided with a "weakened area" 45 so as to allow lateral movement as it is necessary in accordance to the present invention and as it will be appreciated hereinafter. In this embodiment, the weakened area 45 comprises two openings 50a and 50b separated by a flange 55. The openings 50a and 50b, and the flange 55 are obtained during the manufacturing process of the moulded boot.
It is to be understood that the purpose of the weakened area is to allow movement of the lower portion of the moulded boot 10 so as to adjust the width of same.
SUBSTITUTE SHEET therefore any other type of means can be used for the same result. For example, the bottom portion 42 can be provided with more than two openings and alternatively, the bottom portion 42 may comprise a thinner walled section.
As shown in figure 5, the first step of the manufacturing process is to position the preformed insole 15 and the moulded boot 10 over the last 20. Then, the moulded boot 10 is stretched to fit snugly over the insole.
With reference to figure 6, a side lasting machine (not shown) is used to push the moulded boot 10 against the last 20 to shape the contour and at the same time, nails 60 or other equivalent fixation means are provided on the periphery of the bottom portion 42 of the moulded boot 10.
Finally, a finishing sole 65 is affixed to the bottom portion 42 of the moulded boot. Thermo-glue (not shown) is applied on the bottom portion, preferably said glue should be applied to both surfaces. Thereafter, the glue is reactivated under heat and the boot 10 and the finishing sole 65 are pressed together.
The process described above is mainly used to adjust the moulded boot to a width larger than what has been originally moulded since the boot 10 and the insole 15 are stretched over the last 20. However, the two other methods described hereinafter are used to adjust the moulded boot 10 to a width smaller that what has been originally moulded.
SECOND EMBODIMENT
Now, with reference to figures 8 to 11, the second embodiment of the manufacturing method is shown, wherein 10 is the pre-moulded boot and 70 represents the thin walled bottom or sole portion. In this particular embodiment.
SUBSTITUTE SHEET since a negative pressure is applied to formfit the boot as it will be appreciated hereinafter, the openings 50a and 50b of the first embodiment are not adequate.
The second embodiment uses the following elements, that is the moulded boot 10 and a last 75 provided with a plurality of vacuum holes 80 connected to a channel 85 and to a vacuum pump (not shown) .
The first step of this second embodiment, as shown in figure 8, is to place the moulded boot 10 over the last 75. The combination moulded boot and the last (lasted boot) (Figure 9a) is heated to soften the lower portion 86 of the boot. This heating can be done, for example, by placing the lasted boot in an oven 76 such that onlythe bottom and the sides of the boot 86 are heated (Figure 9b, cross section) . Subsequent to heating, pressure, by means of a vacuum pump (not shown) connected to 85, is applied so as to force the hot thermoplastic of the lower portion 86 to take the configuration of the last 75 (Figure 10) .
To reinforce the boot 10, a finishing sole 65 is affixed to the boot by using the same method as previously described in the first embodiment (Figure 11) .
THIRD EMBODIMENT
Finally, the last manufacturing method hereinafter described is also useful and is considered the preferred embodiment of the present invention. For this third method, illustrated in Figures 12 to 14, different metal lasts, generally referred as number 90, each having a specific width are used with a mould 95. The moulded boot 10 used for this embodiment is .'identical to the one used for the first embodiment, that is, provided with a weakened area such as openings 50a and 50b or having other openings.
SUBSTITUTE SHEET The moulded boot 10 is placed over the last 90 in a snugly- fit fashion (lasted boot) and the lasted boot 100 is placed with its sole surface facing downwards in order to be positioned in a sole mould 95 as shown in figures 13 and 14 (cross section) .
The basic elements of the footwear sole mould 95 are a cavity structure 105, the latter essentially consisting of a bottom plate 110 and a pair of complementary side plates 115 and 120. The side plates 115 and 120 are arranged for horizontal reciprocal movement toward and away from each other, as indicated by the arrow B. The bottom plate 110 and the last 90 is arranged for vertical reciprocal movement, as indicated by the arrow C. The inwardly directed surface 125 of the side plates 115 and 120 are contoured so as to define, when the latter is in the illustrated positions thereof, the side walls of a cavity 130, the dimensions, width and shape of which are those of the moulded boot to be obtained. Suitable heating means (not shown) are preferably provided in or in association with the cavity structure 130 and/or the last 90. It is important to mention that the heating of the footwear 10 should be limited to the lower portion 135 of said moulded boot 10.
When the lasted boot is well positioned in the mould 95, heat is applied to the mould 95 or as mentioned above, heat can be applied to the last 90, in its lower portion thereof, the last and/or the mould are usually made of metal to permit the best heat transmission. Depending of the nature of the thermoplastic material of the footwear, a specific heating time is chosen to obtain an optimal point of malleability. When this point is achieved, the mould 95 and the last 90 will dictate the width of the boot and once said boot has taken the desired shape, plastic is injected therein to form the sole of the boot. The mould is then cooled and the boot demoulded. Throughout this
SUBSTITUTE SHEET thermoforming process, the molecular structure of the elastomeric material is altered under heat but sets up at the room temperature. Figure 15 shows examples of the finished products 140 and 145.
It should be understood that various modifications, changes and variations may be made in the arrangements, operations and details of construction of the elements disclosed herein without departing from the spirit and scope of this invention. Thus, although the invention has so far been described as applying to the skate boot industry, the principles herein disclosed are applicable as well to the manufacturing process of such items as ski boots or other moulded footwear.
SUBSTITUTE SHEET LIST OF ELEMENTS
10 Moulded footwear 75 Last with vacuum holes
15 Insole 80 Vacuum holes
20 Last 85 Channel 25 Thinner sole 86 Lower portion of the
30 Sole section moulded boot
35 Front section 90 Metal last
40 Heel section 95' Mould
42 Bottom portion of the 100 Lasted footwear moulded boot 105 Cavity structure
45 Weakened area 110 Bottom plate
50a & 50b Openings 115 Side plate
55 Flange 120 Side plate
60 Nails 125 Inwardly surface 65 Finishing sole 130 Cavity
70 Thin sole 135 Lower portion
75 Last with vacuum holes 140 Finished product
76 Oven 145 Finished product
80 Vacuum holes
SUBSTITUTE SHEET

Claims

1. A method for manufacturing moulded footwear having a lower portion and a sole portion to a desired width, said footwear having a sole portion, said method comprising the following steps:
- moulding the structure of said footwear with a thermoplastic material;
- providing said sole portion with a weakened area so as to allow lateral movement ' of the said lower portion;
- forcing the lower portion of said footwear over a width adjusting means so as to conform the lower portion of said moulded footwear to the width of said adjusting means;
- attaching a finishing sole to said sole portion.
2. A method as described in claim 1, further comprising the step of applying sufficient heat to said sole portion of said footwear to allow the thermoplastic material to become moldable.
3. A method according to claim 2, wherein the width adjusting means comprises a last.
4. A method according to claim 3, wherein the weakened area of the moulded footwear comprises a thin sole and said last is provided with a plurality of vacuum holes and the method further comprises the following steps:
- applying a negative pressure to said last so as to conform the heated lower portion to the shape of said
SUBSTITUTE SHEET last ;
- cooling of the heated lower portion.
5. A method for manufacturing moulded footwear to a desired width, said footwear having a lower portion and a sole portion, said method comprising the following steps:
- moulding the structure of said footwear with a thermoplastic material;
- providing said sole portion with a weakened area so as to allow lateral movement to the said lower portion;
- inserting a last having the desired width into said moulded footwear;
- placing the combination of the last and the footwear into a mould wherein the lower portion of the footwear is heated so as to force said footwear to reach the desired width;
- injecting a thermoplastic into the mould to form a finishing sole;
- cooling of the heated lower portion and finishing sole.
6. A moulded footwear made in accordance with the method described in claims 1, 2 or 3.
7. A moulded footwear made in [accordance with the method described in claims 1, 2 or 3, which is a skate boot.
SUBSTITUTE SHEET
8. A moulded footwear made in accordance with the method described in claims 1, 2 or 3, which is a ski boot.
SUBSTITUTE SHEET
EP90915275A 1990-10-19 1990-10-19 Method for manufacturing moulded footwear in different widths Expired - Lifetime EP0553071B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002092550A CA2092550A1 (en) 1990-10-19 1990-10-19 Method for manufacturing moulded footwear in different widths
PCT/CA1990/000360 WO1992006607A1 (en) 1990-10-19 1990-10-19 Method for manufacturing moulded footwear in different widths

Publications (2)

Publication Number Publication Date
EP0553071A1 true EP0553071A1 (en) 1993-08-04
EP0553071B1 EP0553071B1 (en) 1995-04-05

Family

ID=4172863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90915275A Expired - Lifetime EP0553071B1 (en) 1990-10-19 1990-10-19 Method for manufacturing moulded footwear in different widths

Country Status (5)

Country Link
EP (1) EP0553071B1 (en)
CA (1) CA2092550A1 (en)
DE (1) DE69018485T2 (en)
FI (1) FI931669A0 (en)
WO (1) WO1992006607A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1273915B (en) * 1994-10-27 1997-07-11 Nordica Spa INTERNAL SHOE FOR SPORT SHOES AND PROCEDURE FOR OBTAINING THE SAME.
US5714098A (en) * 1995-12-20 1998-02-03 Nike, Inc. Footwear fitting method
ATE420705T1 (en) 2003-11-24 2009-01-15 Tyrolia Technology Gmbh COMBINATION OF SKI BOOTS AND SKI
ITUD20070021A1 (en) 2007-02-02 2008-08-03 Calzaturificio Dal Bello S R L SERIES OF SPORTS SHOES, SUCH AS SKI, SNOWBOARD OR SIMILAR BOOTS, OF DIFFERENT SIZES, COMBINATION BETWEEN TWO OR MORE SERIES AND ITS RELATED PROCEDURE
DE102017223737A1 (en) 2017-12-22 2019-06-27 Adidas Ag Method for producing a shoe upper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484462A (en) * 1965-06-25 1967-09-15
US3848286A (en) * 1974-03-11 1974-11-19 A Kahmann Method of and apparatus for custom molding footwear
FR2348665A1 (en) * 1976-04-22 1977-11-18 Salomon & Fils F Ski boot manufacturing method - uses prefabricated standard mould shaped on users foot by heat treatment in oven

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9206607A1 *

Also Published As

Publication number Publication date
DE69018485D1 (en) 1995-05-11
CA2092550A1 (en) 1992-04-20
EP0553071B1 (en) 1995-04-05
FI931669L (en) 1993-04-14
DE69018485T2 (en) 1995-07-27
FI931669A7 (en) 1993-04-14
FI931669A0 (en) 1993-04-14
WO1992006607A1 (en) 1992-04-30

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