CA2230383C - Heat mouldable boot liner - Google Patents
Heat mouldable boot liner Download PDFInfo
- Publication number
- CA2230383C CA2230383C CA 2230383 CA2230383A CA2230383C CA 2230383 C CA2230383 C CA 2230383C CA 2230383 CA2230383 CA 2230383 CA 2230383 A CA2230383 A CA 2230383A CA 2230383 C CA2230383 C CA 2230383C
- Authority
- CA
- Canada
- Prior art keywords
- liner
- foot
- wearer
- boot
- flaps
- 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 - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0405—Linings, paddings or insertions; Inner boots
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A heat mouldable boot liner has an upper portion extending upwardly from a foot portion, which has a pair of flaps extending along the foot portion, the flaps being adjustable to bring one of the flaps into overlapping relationship relative to the other of the flaps over the wearer's foot. A tongue extends upwardly from the other one of the flaps within the upper portion of the liner, which has another pair of flaps intended to be overlapped over the tongue at the lower portion of the wearer's leg. The foot portion includes a heel portion shaped to fit snugly the user's heel. The present liner can be heat-moulded in a single-stage moulding operation.
Description
198P1CA(C) HEAT MOULDABLE BOOT LINER
The present invention relates to a heat mouldable boot liner for use, for example, with a ski boot, and to a method of fitting a heat mouldable boot liner to a wearer's foot.
Conventionally, mouldable ski boot liners are made of a heat mouldable material comprising a heat mouldable foam interfaced between outer layers of felt fabric, and such heat mouldable materials are readily commercially available.
In United States Patent No. 5,673,448, issued October 7, 1997, to Herbert Lang et al., there is disclosed a liner for a sports boot shell and a method of making a custom fitted liner for a sports boot shell which employ a single piece of thermoplastic foam material for the liner.
More particularly, a blank made of the thermoplastic foam material is welded or stitched to connect together different portions of the edge of the blank so as to form an unfitted liner having a seam extending from its heel along its underside, and up and over the top of a foot portion of the liner to a gap which extends from a point situated centrally on the wearer's forefoot behind the wearer's toes and between the forward portion of the wearer's arch and the region above the ball of the wearer's foot. From this point, the gap extends upwardly between a pair of flaps or wings to a cuff at the top of the liner.
In use, the unfitted liner is heated in an oven and placed on the wearer's foot, the toes of which are padded to prevent the liner from subsequently holding the wearer's toes immobile.
The wings are then wrapped around the wearer's lower leg, with one wing overlapped by the other, and a short nylon stocking is rolled over the liner, after which the wearer's foot with the liner on it is placed in a boot.
However, it has been found in practice that such a liner does not operate satisfactorily because the portions of the liner adjacent the gap, including the wings, tend to become adversely distorted as the wings are wrapped around the wearer's lower leg and as the foot
The present invention relates to a heat mouldable boot liner for use, for example, with a ski boot, and to a method of fitting a heat mouldable boot liner to a wearer's foot.
Conventionally, mouldable ski boot liners are made of a heat mouldable material comprising a heat mouldable foam interfaced between outer layers of felt fabric, and such heat mouldable materials are readily commercially available.
In United States Patent No. 5,673,448, issued October 7, 1997, to Herbert Lang et al., there is disclosed a liner for a sports boot shell and a method of making a custom fitted liner for a sports boot shell which employ a single piece of thermoplastic foam material for the liner.
More particularly, a blank made of the thermoplastic foam material is welded or stitched to connect together different portions of the edge of the blank so as to form an unfitted liner having a seam extending from its heel along its underside, and up and over the top of a foot portion of the liner to a gap which extends from a point situated centrally on the wearer's forefoot behind the wearer's toes and between the forward portion of the wearer's arch and the region above the ball of the wearer's foot. From this point, the gap extends upwardly between a pair of flaps or wings to a cuff at the top of the liner.
In use, the unfitted liner is heated in an oven and placed on the wearer's foot, the toes of which are padded to prevent the liner from subsequently holding the wearer's toes immobile.
The wings are then wrapped around the wearer's lower leg, with one wing overlapped by the other, and a short nylon stocking is rolled over the liner, after which the wearer's foot with the liner on it is placed in a boot.
However, it has been found in practice that such a liner does not operate satisfactorily because the portions of the liner adjacent the gap, including the wings, tend to become adversely distorted as the wings are wrapped around the wearer's lower leg and as the foot
-2-and liner are inserted into the boot. Because the seam extends along the underside of the liner and because the underside of the liner is formed of deformable foam material, the shape of the liner is unstable as the liner is forced into its boot shell. Also, the foam moulds itself into the soft parts of the underside of the wearer's foot during the moulding operation, which causes pain and discomfort during subsequent use of the moulded liner. It was also found that the heel portion of this prior liner tended to become dislocated during the moulding operation, thus not only causing distortion of the lower portion of the liner but also causing dislocation of the cuff or top of the liner at the back of the wearer's leg, where the liner is required to be correctly positioned to protect the leg against the cuff or top of the boot shell.
In addition, because this prior liner has only two wings, it is difficult to insert the wearer's foot with the liner after the moulding of the liner has been completed and the liner material has hardened.
It is accordingly an object of the present invention to provide a novel and improved boot liner which facilitates improved molding of the liner to the user's foot.
According to one aspect of the present invention, there is provided a heat moldable boot liner which comprises a foot portion. The heat mouldable boot liner includes an upper portion extending upwardly from the foot portion. The heat mouldable boot liner further includes first and second flaps which can be wrapped over the wearer's foot, with said first flap in overlapping relation to said second flap. The heat mouldable boot liner further includes a tongue extending upwardly from the second flap. The upper portion has third and fourth flaps which can be wrapped over the tongue and the front of a lower portion of the wearer's leg.
When the present boot liner is in use, it is firstly heated to render the liner pliable and is then fitted in an unmolded state to the user's foot. The flaps are then adjusted into their overlapping relationships, with the tongue between the wearer's lower leg portion and the third and fourth flaps. The first and second flaps are preferably secured together, for -~-example by means of a hook-and-loop fastener, so that the foot portion of the boot is snugly adapted to fit the user's foot. The liner and the wearer's foot in the liner are then inserted into a boot shell so as to mold the liner to the user's foot in a one-stage operation.
According to a further aspect of the present invention, there is provided a method of fitting a heat mouldable boot liner to a wearer's foot. The method includes the step of heating the boot liner to render the liner mouldable. The method includes inserting the wearer's foot in the liner. The method includes wrapping first and second flaps on the liner into mutually overlapping relationship over the wearer's foot. The method includes locating a tongue from the second flap against the front of a lower leg portion of the wearer. The method includes wrapping third and fourth flaps on the liner around the front of the lower leg portion of the wearer into overlapping relationship with one another and with the tongue. The method further includes inserting the liner, with the wearer's foot within, into a boot shell to mould the liner between the wearer's foot and the boot shell.
The invention will be more readily understood from the following description of a preferred embodiment thereof given, by way of example, with reference to the accompanying drawings, in which:-Figure 1 shows a view in perspective of a boot liner according to the present invention in an opened condition;
Figure 2 shows a heel portion of the liner of Figure 1 during the manufacture of the liner;
Figure 3 shows a view of the heel portion of Figure 2 in a finished condition;
Figure 4 shows a view in perspective of the liner of Figure 1 during fitting of the liner onto a wearer's foot (not shown);
Figure 5 shows a view in perspective of the liner of Figures 1 and 4 in a partially closed condition;
Figure 6 shows a blank employed in the making of the boot liner of Figures 1 through 5;
Figures 7 and 8 show blanks of a tongue and a sole, respectively, forming parts of the liner of Figures 1 through 6; and Figure 9 shows a view in perspective of the sole of Figure 8 being attached to the remainder of the liner.
The boot liner illustrated in the accompanying drawings and indicated generally by reference numeral 10 is made of commercially available heat moldable boot liner material, such as that described above, and comprises a foot portion indicated generally by reference numeral 12, and an upper portion indicated generally by reference numeral 14.
The foot portion 12 is formed, at its top, with first and second flaps 16 and 17 which define therebetween a gap, indicated generally by reference numeral 18, which extends along the top of the foot portion 12 to the upper portion 14 of the liner and, more particularly, to a gap, indicated generally by reference numeral 20, which extends upwardly from the foot portion 12 to a top edge 22 of the upper portion 14 between third and fourth flaps 21 and 23 forming parts of the upper portion 14.
A tongue 24 is joined, at a lower end of the tongue 24, to the second flap 17 and is dimensioned so that, when the boot liner 10 is closed as shown in Figures 4 and 5, the tongue 24 extends along the front of the lower portion of the wearer's leg, with the tongue 24 extending the entire height of the upper portion 14 of the liner 10, substantially to the top edge 22 of the upper portion 14.
During the manufacture of the boot liner 10 shown in Figure 1, a heel portion, indicated generally by reference numeral 26, of the foot portion 12 is formed so as to be vertically curved, with the heel portion 26 having an externally convex shape, as shown in Figures 4 and 5, and, consequently, a correspondingly concave inner surface, in order to snugly fit the heel of the user. This curved shape of the heel portion 26 is produced by firstly forming a V-shaped cut-out, as indicated generally by reference numera128 in Figures 2 and 6, in the heel portion 26 and by the closing together of opposite edges 30 of the cut-out 26 and stitching these edges 30 together as illustrated in Figure 3.
When the boot liner 10 is fitted to the user's foot, the boot liner is firstly heated to render the material of the liner pliable, in known manner, and the foot is then inserted into the liner.
The flap 16 is then adjusted so that it is disposed in overlapping relationship relative to the flap 17, as shown in Figure 4, over the wearer's foot. This enables the foot portion 12 to be snugly fitted to the user's foot. As can also be seen from Figure 4, the tongue 24 is located within the upper portion 14 of the liner 10 during this operation.
In order to maintain the foot portion 12 in its snugly fitting relationship with the user's foot, a fastener is provided in the form of patches 32 and 33 of hook-and-loop fastener material secured to opposed faces 34 and 35 of the flaps 16 and 17, the faces 34 and 35 being brought into face-to-face relationship with one another so as to interengage the patches 32 and 33 with one another, as shown in Figure 4.
After the flaps 16 and 17 have been thus snugly fitted in mutually overlapping relationship, as shown in Figure 5, over the wearer's foot, with the tongue 24 extending up the front of the lower portion of the leg of the wearer, the flaps 21 and 23 are wrapped around the lower leg portion into overlapping relationship with one another and with the tongue 24.
The wearer's foot and the liner are then inserted into a boot shell to cause the still-pliable liner to be molded between the foot and the boot shell. The insertion of the foot and the liner into the boot shell may, if desired, be facilitated by covering the liner with a plastic sheet material or other low-friction material to facilitate sliding of the liner into the boot shell by reducing friction between the liner and the boot shell.
Also, if desired, the upper flaps 21 and 23 may be retained in snugly fitting overlapping relationship around the lower leg by means of a strap (not shown) extending around the upper portion 14 of the liner 10.
When the liner 10 is intended for a snowboard boot shell, as distinct from a ski boot shell, hook-and-loop fastener material patches shown in broken lines in Figure 1 and indicated by reference numeral 25 may be used to secure the flaps 21 and 24 together and to the tongue 24.
Since the foot portion 12 can be snugly fitted to the foot of the user, as described above, and retained by the fastener patches 32 and 33, the foot portion 12 remains in position on the user's foot during insertion into the boot shell and resists being moved around the foot, and since the snugness of this fitting and the insertion into the boot shell without dislocation of the liner on the foot are facilitated by the above-described vertical curvature of the heel portion 26, it is found that the liner 10 can be heat molded in a one-stage moulding operation, which substantially facilitates and abbreviates the fitting of the liner 10 to the foot of its user.
Figure 6 shows a blank, indicated generally by reference numeral 40, of heat moldable material used to make the liner 10.
The blank 40 is formed with a gap 42 which extends between the first and third flaps 16 and 21 and another gap 44, in the form of a slit, which extends between the second and fourth flaps 17 and 23. The gaps 42 and 44, as viewed in Figure 6, are inclined downwardly and convergently towards a heel portion 46 in which the cut-out 28 is formed.
These gaps 42 and 44 enable the flaps 16, 17, 21 and 23 to be wrapped snugly around the wearer's foot and leg in such a manner as to counter-act subsequent distortion of the liner during the moulding of the liner.
More particularly, the gaps 42 and 44 are sufficiently long to ensure that stresses in the flaps 16 and 17 are not transmitted to the flaps 21 and 23, and vice versa, during the fitting and moulding of the liner 10.
The flap 17 is formed with a straight edge 48 and the tongue 24 is formed from a blank indicated generally by reference numeral 50 in Figure 7, which has a corresponding straight edge 52. The tongue 24 is formed by joining the blank 50 along its edge 52 by stitching or welding to the edge 48 of the flap 17.
The boot liner 10 also includes a sole 54, shown in Figure 8, which is firstly formed separate from the blank 40 and then secured, by a joint 55 (Figure 3) along a peripheral edge 56 (Figure 6) of the sole 54, to a bottom edge 58 of the blank 40, also by stitching or welding.
The sole 54 is made of a material which is such that the sole 54 is not moulded to the wearer's foot during the fitting and moulding of the liner 10. This avoids a "mushy" feel between the foot and the sole, which is undesirable when skiing. The sole 54 also provides stability during the fitting and moulding and therefore counteracts dislocation of the sole and the rest of the liner during the fitting and moulding of the liner.
The sole 54 may, for example, be made of natural gum rubber or a synthetic elastomer, and may be premoulded, as a foot bed, to the underside of the wearer's foot.
In addition, because this prior liner has only two wings, it is difficult to insert the wearer's foot with the liner after the moulding of the liner has been completed and the liner material has hardened.
It is accordingly an object of the present invention to provide a novel and improved boot liner which facilitates improved molding of the liner to the user's foot.
According to one aspect of the present invention, there is provided a heat moldable boot liner which comprises a foot portion. The heat mouldable boot liner includes an upper portion extending upwardly from the foot portion. The heat mouldable boot liner further includes first and second flaps which can be wrapped over the wearer's foot, with said first flap in overlapping relation to said second flap. The heat mouldable boot liner further includes a tongue extending upwardly from the second flap. The upper portion has third and fourth flaps which can be wrapped over the tongue and the front of a lower portion of the wearer's leg.
When the present boot liner is in use, it is firstly heated to render the liner pliable and is then fitted in an unmolded state to the user's foot. The flaps are then adjusted into their overlapping relationships, with the tongue between the wearer's lower leg portion and the third and fourth flaps. The first and second flaps are preferably secured together, for -~-example by means of a hook-and-loop fastener, so that the foot portion of the boot is snugly adapted to fit the user's foot. The liner and the wearer's foot in the liner are then inserted into a boot shell so as to mold the liner to the user's foot in a one-stage operation.
According to a further aspect of the present invention, there is provided a method of fitting a heat mouldable boot liner to a wearer's foot. The method includes the step of heating the boot liner to render the liner mouldable. The method includes inserting the wearer's foot in the liner. The method includes wrapping first and second flaps on the liner into mutually overlapping relationship over the wearer's foot. The method includes locating a tongue from the second flap against the front of a lower leg portion of the wearer. The method includes wrapping third and fourth flaps on the liner around the front of the lower leg portion of the wearer into overlapping relationship with one another and with the tongue. The method further includes inserting the liner, with the wearer's foot within, into a boot shell to mould the liner between the wearer's foot and the boot shell.
The invention will be more readily understood from the following description of a preferred embodiment thereof given, by way of example, with reference to the accompanying drawings, in which:-Figure 1 shows a view in perspective of a boot liner according to the present invention in an opened condition;
Figure 2 shows a heel portion of the liner of Figure 1 during the manufacture of the liner;
Figure 3 shows a view of the heel portion of Figure 2 in a finished condition;
Figure 4 shows a view in perspective of the liner of Figure 1 during fitting of the liner onto a wearer's foot (not shown);
Figure 5 shows a view in perspective of the liner of Figures 1 and 4 in a partially closed condition;
Figure 6 shows a blank employed in the making of the boot liner of Figures 1 through 5;
Figures 7 and 8 show blanks of a tongue and a sole, respectively, forming parts of the liner of Figures 1 through 6; and Figure 9 shows a view in perspective of the sole of Figure 8 being attached to the remainder of the liner.
The boot liner illustrated in the accompanying drawings and indicated generally by reference numeral 10 is made of commercially available heat moldable boot liner material, such as that described above, and comprises a foot portion indicated generally by reference numeral 12, and an upper portion indicated generally by reference numeral 14.
The foot portion 12 is formed, at its top, with first and second flaps 16 and 17 which define therebetween a gap, indicated generally by reference numeral 18, which extends along the top of the foot portion 12 to the upper portion 14 of the liner and, more particularly, to a gap, indicated generally by reference numeral 20, which extends upwardly from the foot portion 12 to a top edge 22 of the upper portion 14 between third and fourth flaps 21 and 23 forming parts of the upper portion 14.
A tongue 24 is joined, at a lower end of the tongue 24, to the second flap 17 and is dimensioned so that, when the boot liner 10 is closed as shown in Figures 4 and 5, the tongue 24 extends along the front of the lower portion of the wearer's leg, with the tongue 24 extending the entire height of the upper portion 14 of the liner 10, substantially to the top edge 22 of the upper portion 14.
During the manufacture of the boot liner 10 shown in Figure 1, a heel portion, indicated generally by reference numeral 26, of the foot portion 12 is formed so as to be vertically curved, with the heel portion 26 having an externally convex shape, as shown in Figures 4 and 5, and, consequently, a correspondingly concave inner surface, in order to snugly fit the heel of the user. This curved shape of the heel portion 26 is produced by firstly forming a V-shaped cut-out, as indicated generally by reference numera128 in Figures 2 and 6, in the heel portion 26 and by the closing together of opposite edges 30 of the cut-out 26 and stitching these edges 30 together as illustrated in Figure 3.
When the boot liner 10 is fitted to the user's foot, the boot liner is firstly heated to render the material of the liner pliable, in known manner, and the foot is then inserted into the liner.
The flap 16 is then adjusted so that it is disposed in overlapping relationship relative to the flap 17, as shown in Figure 4, over the wearer's foot. This enables the foot portion 12 to be snugly fitted to the user's foot. As can also be seen from Figure 4, the tongue 24 is located within the upper portion 14 of the liner 10 during this operation.
In order to maintain the foot portion 12 in its snugly fitting relationship with the user's foot, a fastener is provided in the form of patches 32 and 33 of hook-and-loop fastener material secured to opposed faces 34 and 35 of the flaps 16 and 17, the faces 34 and 35 being brought into face-to-face relationship with one another so as to interengage the patches 32 and 33 with one another, as shown in Figure 4.
After the flaps 16 and 17 have been thus snugly fitted in mutually overlapping relationship, as shown in Figure 5, over the wearer's foot, with the tongue 24 extending up the front of the lower portion of the leg of the wearer, the flaps 21 and 23 are wrapped around the lower leg portion into overlapping relationship with one another and with the tongue 24.
The wearer's foot and the liner are then inserted into a boot shell to cause the still-pliable liner to be molded between the foot and the boot shell. The insertion of the foot and the liner into the boot shell may, if desired, be facilitated by covering the liner with a plastic sheet material or other low-friction material to facilitate sliding of the liner into the boot shell by reducing friction between the liner and the boot shell.
Also, if desired, the upper flaps 21 and 23 may be retained in snugly fitting overlapping relationship around the lower leg by means of a strap (not shown) extending around the upper portion 14 of the liner 10.
When the liner 10 is intended for a snowboard boot shell, as distinct from a ski boot shell, hook-and-loop fastener material patches shown in broken lines in Figure 1 and indicated by reference numeral 25 may be used to secure the flaps 21 and 24 together and to the tongue 24.
Since the foot portion 12 can be snugly fitted to the foot of the user, as described above, and retained by the fastener patches 32 and 33, the foot portion 12 remains in position on the user's foot during insertion into the boot shell and resists being moved around the foot, and since the snugness of this fitting and the insertion into the boot shell without dislocation of the liner on the foot are facilitated by the above-described vertical curvature of the heel portion 26, it is found that the liner 10 can be heat molded in a one-stage moulding operation, which substantially facilitates and abbreviates the fitting of the liner 10 to the foot of its user.
Figure 6 shows a blank, indicated generally by reference numeral 40, of heat moldable material used to make the liner 10.
The blank 40 is formed with a gap 42 which extends between the first and third flaps 16 and 21 and another gap 44, in the form of a slit, which extends between the second and fourth flaps 17 and 23. The gaps 42 and 44, as viewed in Figure 6, are inclined downwardly and convergently towards a heel portion 46 in which the cut-out 28 is formed.
These gaps 42 and 44 enable the flaps 16, 17, 21 and 23 to be wrapped snugly around the wearer's foot and leg in such a manner as to counter-act subsequent distortion of the liner during the moulding of the liner.
More particularly, the gaps 42 and 44 are sufficiently long to ensure that stresses in the flaps 16 and 17 are not transmitted to the flaps 21 and 23, and vice versa, during the fitting and moulding of the liner 10.
The flap 17 is formed with a straight edge 48 and the tongue 24 is formed from a blank indicated generally by reference numeral 50 in Figure 7, which has a corresponding straight edge 52. The tongue 24 is formed by joining the blank 50 along its edge 52 by stitching or welding to the edge 48 of the flap 17.
The boot liner 10 also includes a sole 54, shown in Figure 8, which is firstly formed separate from the blank 40 and then secured, by a joint 55 (Figure 3) along a peripheral edge 56 (Figure 6) of the sole 54, to a bottom edge 58 of the blank 40, also by stitching or welding.
The sole 54 is made of a material which is such that the sole 54 is not moulded to the wearer's foot during the fitting and moulding of the liner 10. This avoids a "mushy" feel between the foot and the sole, which is undesirable when skiing. The sole 54 also provides stability during the fitting and moulding and therefore counteracts dislocation of the sole and the rest of the liner during the fitting and moulding of the liner.
The sole 54 may, for example, be made of natural gum rubber or a synthetic elastomer, and may be premoulded, as a foot bed, to the underside of the wearer's foot.
Claims (17)
1. A heat mouldable boot liner, comprising:
a foot portion;
an upper portion extending upwardly from said foot portion;
said foot portion including first and second flaps which can be wrapped over a wearer's foot with said first flap in overlapping relation to said second flap;
a tongue extending upwardly from said second flap;
said upper portion including third and fourth flaps which can be wrapped over the front of a lower leg portion of the wearer with said third and fourth flaps overlapping one another and overlapping said tongue.
a foot portion;
an upper portion extending upwardly from said foot portion;
said foot portion including first and second flaps which can be wrapped over a wearer's foot with said first flap in overlapping relation to said second flap;
a tongue extending upwardly from said second flap;
said upper portion including third and fourth flaps which can be wrapped over the front of a lower leg portion of the wearer with said third and fourth flaps overlapping one another and overlapping said tongue.
2. A heat mouldable boot liner as claimed in claim 1, including a pair of gaps extending between said first and third flaps and said second and fourth flaps, respectively.
3. A heat mouldable boot liner as claimed in claim 1 or 2, further comprising a sole, formed separately from said foot portion, and ajoint between said sole and said foot portion extending peripherally around said sole.
4. A heat mouldable boot liner as claimed in claim 3, wherein said sole is premoulded to conform to the underside of the wearer's foot.
5. A heat mouldable boot liner as claimed in claim 3, wherein said sole comprises rubber.
6. A heat mouldable boot liner as claimed in claim 3, wherein said sole comprises a synthetic elastomer.
7. A heat mouldable boot liner as claimed in any one of the claims 1 to 6, wherein said tongue extends upwardly at least substantially to the top of said upper portion.
8. A heat mouldable boot liner as claimed in any one of claims 1 to 7, including a fastener for securing said first flap in said overlapping relation to said second flap.
9. A heat mouldable boot liner as claimed in claim 8, wherein said fastener comprises patches of hook-and-loop fastener material secured to said first and second flaps.
10. A heat mouldable boot liner as claimed in any one of the claims 1 to 9, wherein said foot portion includes a vertically externally convexedly curved heel portion.
11. A heat mouldable boot liner as claimed in claim 10, wherein said heel portion is formed by a V-shaped cut-out in said foot portion, said V-shaped cut-out having opposite edges joined together.
12. A method of fitting a heat mouldable boot liner to a wearer's foot, comprising the steps of heating said boot liner to render said liner mouldable;
inserting the wearer's foot into said liner;
wrapping first and second flaps on said liner into mutually overlapping relationship over the wearer's foot;
locating a tongue extending from said second flap against the front of a lower leg portion of the wearer;
wrapping third and fourth flaps on said liner around the front of the lower leg portion of the wearer into overlapping relationship with one another and with said tongue;
and inserting the liner, with the wearer's foot within, into a boot shell to mould the liner between the wearer's foot and the boot shell.
inserting the wearer's foot into said liner;
wrapping first and second flaps on said liner into mutually overlapping relationship over the wearer's foot;
locating a tongue extending from said second flap against the front of a lower leg portion of the wearer;
wrapping third and fourth flaps on said liner around the front of the lower leg portion of the wearer into overlapping relationship with one another and with said tongue;
and inserting the liner, with the wearer's foot within, into a boot shell to mould the liner between the wearer's foot and the boot shell.
13. A method as claimed in claim 12, which includes fastening said first and second flaps to one another in their mutually overlapping relationship.
14. A method as claimed in claim 12 or 13, which includes providing said boot liner with a seamless sole joined peripherally of said sole to said liner.
15. A method as claimed in claim 14, which includes premoulding said sole to the underside of the wearer's foot.
16. A method as claimed in claim 12, 13 or 14, which includes providing said boot liner with a vertically externally conversely curved heel portion so as to snugly fit the wearer's heel.
17. A method as claimed in claim 12, 13, 14, 15 or 16, wherein the sole is employed to provide stability to the boot liner during the fitting of the boot liner and counteracts dislocation of the sole and the rest of the liner during the fitting of the liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2230383 CA2230383C (en) | 1997-02-28 | 1998-02-24 | Heat mouldable boot liner |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,198,787 | 1997-02-28 | ||
| CA002198787A CA2198787A1 (en) | 1997-02-28 | 1997-02-28 | Heat mouldable boot liner |
| CA 2230383 CA2230383C (en) | 1997-02-28 | 1998-02-24 | Heat mouldable boot liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2230383A1 CA2230383A1 (en) | 1998-08-28 |
| CA2230383C true CA2230383C (en) | 2007-12-11 |
Family
ID=25679076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2230383 Expired - Fee Related CA2230383C (en) | 1997-02-28 | 1998-02-24 | Heat mouldable boot liner |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2230383C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20012736A1 (en) * | 2001-12-21 | 2003-06-21 | Htm Sport Spa | SPORT FOOTWEAR |
-
1998
- 1998-02-24 CA CA 2230383 patent/CA2230383C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2230383A1 (en) | 1998-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |