WO2006077606A1 - Inner lining shoe for sport footwear having substantially rigid shell and leg-piece - Google Patents
Inner lining shoe for sport footwear having substantially rigid shell and leg-piece Download PDFInfo
- Publication number
- WO2006077606A1 WO2006077606A1 PCT/IT2005/000031 IT2005000031W WO2006077606A1 WO 2006077606 A1 WO2006077606 A1 WO 2006077606A1 IT 2005000031 W IT2005000031 W IT 2005000031W WO 2006077606 A1 WO2006077606 A1 WO 2006077606A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- die
- inner lining
- lining shoe
- insert
- foot
- Prior art date
Links
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
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
- A43B3/0073—Y-shaped
-
- 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
- A43B5/0427—Ski or like boots characterised by type or construction details
- A43B5/0482—Ski or like boots characterised by type or construction details made from materials with different rigidities
Definitions
- the present invention refers to an inner lining shoe as used in ski boots and other articles of footwear intended to be associated to various sports gear (such as the ones used in association with in-line skates, as well as the ones used in association with snowboards) which are provided with an external structure comprising a lower shell and a sometimes articulated leg-piece, both of which are made of substantially rigid plastic materials.
- Such inner lining shoes are generally required to comply with two basic, to some extent mutually clashing conditions that are also to be seen in connection with the peculiar characteristics of the above-mentioned external structure of the boot, i.e. they have to :
- inner lining shoes Two basic type of inner lining shoes are generally known in the art, i.e. the front entry type and die rear entry one.
- an inner lining shoe of the first type - which the present invention refers to, actually — is provided with a front slip-in aperture with two side flaps opening apart from each other and a tongue provided therebelow — see for example the disclosure in EP-A-427 321.
- a drawback that is frequently found in this type of shoe lies in the fact that its construction is not such as to effectively ensure full adherence thereof to die shell of die external structure of die boot, owing to both the materials chosen for use in making said inner ling shoes being generally not fully up to their task and the circumstance that it is in fact quite difficult — if not plainly impossible — for die actual physical condition of die wearer's foot to be taken into due consideration at die design stage of the shoe. It can in fact be readily understood that such condition is extremely variable, not only among die individual wearers themselves, but also during a same and single day, since it is largely known that certain parts of the foot are subject to swelling.
- die rigidity of die materials tends to increase under a variety of environmental conditions in which the footwear is used, such as the low temperature prevailing on ski slopes, and diis may occur to such an extent as to cause the shell to become substantially non-deformable, i.e. extremely rigid.
- It is another aim of die present invention to provide an inner lining shoe diat is capable of constandy ensuring a level of comfort as required and necessary in order to enable a wearer to really enjoy practicing the related sport.
- FIG. 1 is a side view of an inner lining shoe according to die present invention, intended for use in connection with a front entry ski boot;
- - Figure 2 is a rear elevation view of die inner lining shoe shown in Figure 1 ;
- FIG. 3 is a diree-dimensional view from die rear of die same inner lining shoe. Schematically shown in dashed lines in Figure 1 , where it is generally indicated at P, diere is also die foot of a user wearing the inner lining shoe, die latter being in turn generally indicated at 10.
- the various parts of the foot are diemselves indicated by reference letters, namely: die toes are indicated at D, die bony protuberance above the metatarsus is indicated at M, die plantar arch is indicated at S, die instep is indicated at C, a malleolus is indicated at K 5 die heel is indicated at T, and die Achilles tendon is indicated at A.
- the front aperture (not shown) provided for the foot P to be able to slip into the inner ling shoe 10 is guarded by a tongue 18, which extends starting from a zone 13 lying above die toes D, where die tongue 18 is practically hinged, and reaching up to the free upper edge 17 of the leg-piece 16.
- die structures of die vamp portion 12 and die tongue 18 comprise an inner liner of soft and transpiring textile material (eg. fine velvet backed by a sheet of foamed polyurethane) and an outer Liner made of impermeable, non-extensible textile material (eg. polyethylene-backed polyester fibres), as well as a soft padding (eg. polyurethane or polyediylene) diat is enclosed between said inner and outer liners.
- an inner liner of soft and transpiring textile material eg. fine velvet backed by a sheet of foamed polyurethane
- an outer Liner made of impermeable, non-extensible textile material (eg. polyethylene-backed polyester fibres), as well as a soft padding (eg. polyurethane or polyediylene) diat is enclosed between said inner and outer liners.
- a soft padding eg. polyurethane or polyediylene
- die structure of die leg-piece 16 comprises an outer cladding layer (eg. rigid polyethylene) i.e. a material diat is resistant to abrasion and/or tearing. Abrasion and tearing effects might in fact be induced by a tight- fitting contact between the outer surface of the inner lining shoe 10 and the inside surface of the outside rigid shell of die boot.
- outer cladding layer e.g. rigid polyethylene
- die structure of die inner Lining shoe 10 provides for an insert 20 to be used in at least one aperture 30 of the vamp 12, said insert being made of a softer material and having a greater elasticity dian die parts of said vamp portion 12 other than die one where said aperture is provided.
- the result is diat air pockets are diereby eliminated between said inner lining shoe 10 and said rigid shell being part of the external structure of the sports footwear.
- the apertures 30 of the vamp portion 12 correspond to those parts of the wearer's foot diat undergo die heaviest stresses when practicing sport and, as a result, are most of all subject to swelling, starting from die Achilles tendon A, and the insert 20 is made of a flexible synthetic material with a slow- recovery shape memory.
- the term "slow-recovery shape memory material” shall be understood as meaning a material characterized in that, when pressed witii a heavy, rigid body (eg. a steel ball), it only slowly and gradually springs back into the original shape diereof, sometimes widi a slight reduction in thickness due to permanent set, upon removal of said rigid body.
- materials of diis kind are cited in a number of patent publications, such as US-A- 4 346 205, US-A-5 590 430 and EP-A-962 171. Further examples are following two materials indicated in die Table below, both of tiiem available from the firm SPAC SpA (Italy):
- the above-cited insert which is generally indicated at 20, is provided on its outer surface with a plurality of essentially horizontal or slightly downward curving corrugations 21, and is comprised of a central portion 22, which extends along the Achilles tendon A, and two offshoots 24 and 26.
- the offshoots 24 and 26 start from the lower end of the central portion 22 to then extend downwards, while becoming gradually narrower, on both sides of the foot P below the malleoli K and above the heel T.
- the insert 20 is essentially in the shape of a reverse Y, whose base starts off at the lower edge 19 of the leg-piece 16 or just slighdy above said lower edge 19.
- die application of die insert 20 calls for an aperture 30 to be provided in die vamp 12, in which said aperture is in die same shape as die insert 20, and die insert 20 itself to be attached to die inside surface of die vamp 12 by means of a sewing seam 28 extending all along die entire periphery of the aperture 30.
Abstract
Inner lining shoe (10) of the front type intended for use in conjunction with ski boots and other articles of footwear generally associated to sports gear, said inner lining shoe comprising a vamp portion (12) and a sole (14) attached thereto. At least on the part of the vamp portion (12) corresponding to the Achilles tendon (A) of the wearer's foot (P) there is provided an aperture (30) plugged with at least a corresponding insert (20) made of a material that is softer and has a greater elasticity than the material of the parts of said vamp portion (12) other than the one where said aperture (30) is provided. The air pockets generally forming in state-of-art boots between said inner lining shoe (10) and said shell forming the external structure of the boot are thereby eliminated.
Description
INNER LINING SHOE FOR SPORT FOOTWEAR HAVING SUBSTANTIALLY
RIGID SHELL AND LEG-PIECE
DESCRIPTION
The present invention refers to an inner lining shoe as used in ski boots and other articles of footwear intended to be associated to various sports gear (such as the ones used in association with in-line skates, as well as the ones used in association with snowboards) which are provided with an external structure comprising a lower shell and a sometimes articulated leg-piece, both of which are made of substantially rigid plastic materials.
Such inner lining shoes are generally required to comply with two basic, to some extent mutually clashing conditions that are also to be seen in connection with the peculiar characteristics of the above-mentioned external structure of the boot, i.e. they have to :
-allow for the foot to most smoothly slip into the lining shoe itself and. as a result, the boot, and
- be such as to ensure that the commands, which - starting from the leg or die foot of the skier or skater - reach the sports gear associated to die boot, are transferred as accurately and effectively as possible thereto.
Two basic type of inner lining shoes are generally known in the art, i.e. the front entry type and die rear entry one. As largely known in the art, an inner lining shoe of the first type - which the present invention refers to, actually — is provided with a front slip-in aperture with two side flaps opening apart from each other and a tongue provided therebelow — see for example the disclosure in EP-A-427 321.
A drawback that is frequently found in this type of shoe lies in the fact that its construction is not such as to effectively ensure full adherence thereof to die shell of die external structure of die boot, owing to both the materials chosen for use in making said inner ling shoes being generally not fully up to their task and the circumstance that it is in fact quite difficult — if not plainly impossible — for die actual physical condition of die wearer's foot to be taken into due consideration at die design stage of the shoe. It can in fact be readily understood that such condition is extremely variable, not only among die individual wearers themselves, but also during a same and single day, since it is largely known that certain parts of the foot are subject to swelling. Moreover, die rigidity of die materials tends to increase under a variety of environmental conditions in which the footwear is used, such as the low temperature prevailing on ski slopes, and diis may occur to such an extent as to cause the shell
to become substantially non-deformable, i.e. extremely rigid.
It therefore is a major aim of the present invention to provide an inner lining shoe that is capable of keeping adherent to the external structure of a boot or other footwear of the above-indicated kind under any environmental condition in which die boot itself may also be used.
It is another aim of die present invention to provide an inner lining shoe diat is capable of constandy ensuring a level of comfort as required and necessary in order to enable a wearer to really enjoy practicing the related sport.
According to the present invention, these and furdier aims are reached by an inner lining shoe of the above-indicated type that incorporates die features as recited in Claim 1.
A non-Umiting example of embodiment of the present invention shall now be described in greater detail with reference to die accompanying drawing, in which:
- Figure 1 is a side view of an inner lining shoe according to die present invention, intended for use in connection with a front entry ski boot; - Figure 2 is a rear elevation view of die inner lining shoe shown in Figure 1 ;
- Figure 3 is a diree-dimensional view from die rear of die same inner lining shoe. Schematically shown in dashed lines in Figure 1 , where it is generally indicated at P, diere is also die foot of a user wearing the inner lining shoe, die latter being in turn generally indicated at 10. The various parts of the foot are diemselves indicated by reference letters, namely: die toes are indicated at D, die bony protuberance above the metatarsus is indicated at M, die plantar arch is indicated at S, die instep is indicated at C, a malleolus is indicated at K5 die heel is indicated at T, and die Achilles tendon is indicated at A.
The inner lining shoe 10 for ski boots illustrated in die Figures id of the kind having a front aperture and, in a manner that is largely known as such in die art, comprises a vamp portion 12, onto which diere is sewn a flexible sole 14, and a leg-piece 16 extending upwards beyond die instep C of die foot P. The front aperture (not shown) provided for the foot P to be able to slip into the inner ling shoe 10 is guarded by a tongue 18, which extends starting from a zone 13 lying above die toes D, where die tongue 18 is practically hinged, and reaching up to the free upper edge 17 of the leg-piece 16. Again in a manner diat is largely known as such in die art, die structures of die vamp portion 12 and die tongue 18 comprise an inner liner of soft and transpiring textile material (eg. fine velvet backed by a sheet of foamed polyurethane) and an outer Liner made of impermeable, non-extensible textile material (eg. polyethylene-backed polyester fibres), as well as a soft padding (eg. polyurethane or polyediylene) diat is enclosed between said inner and
outer liners. It will be appreciated that the non-extensibility of die outer liner is to be understood in the sense relating to the stresses and loads which die inner lining shoe 10 is generally subject to in practical use, and not in absolute terms.
In view of ensuring an improved, more effective resistance against possible damages deriving from die coupling between die ski boot (not shown) and die inner ling shoe 10, owing to said inner lining shoe and said boot being in conjunction with each odier, die structure of die leg-piece 16 comprises an outer cladding layer (eg. rigid polyethylene) i.e. a material diat is resistant to abrasion and/or tearing. Abrasion and tearing effects might in fact be induced by a tight- fitting contact between the outer surface of the inner lining shoe 10 and the inside surface of the outside rigid shell of die boot.
According to a main feature of die present invention, die structure of die inner Lining shoe 10 provides for an insert 20 to be used in at least one aperture 30 of the vamp 12, said insert being made of a softer material and having a greater elasticity dian die parts of said vamp portion 12 other than die one where said aperture is provided. The result is diat air pockets are diereby eliminated between said inner lining shoe 10 and said rigid shell being part of the external structure of the sports footwear.
In a particularly preferred embodiment of the present invention, the apertures 30 of the vamp portion 12 correspond to those parts of the wearer's foot diat undergo die heaviest stresses when practicing sport and, as a result, are most of all subject to swelling, starting from die Achilles tendon A, and the insert 20 is made of a flexible synthetic material with a slow- recovery shape memory.
As used here, the term "slow-recovery shape memory material" shall be understood as meaning a material characterized in that, when pressed witii a heavy, rigid body (eg. a steel ball), it only slowly and gradually springs back into the original shape diereof, sometimes widi a slight reduction in thickness due to permanent set, upon removal of said rigid body. Examples of materials of diis kind are cited in a number of patent publications, such as US-A- 4 346 205, US-A-5 590 430 and EP-A-962 171. Further examples are following two materials indicated in die Table below, both of tiiem available from the firm SPAC SpA (Italy):
In the embodiment illustrated in the accompanying Figures, the above-cited insert, which is generally indicated at 20, is provided on its outer surface with a plurality of essentially horizontal or slightly downward curving corrugations 21, and is comprised of a central portion 22, which extends along the Achilles tendon A, and two offshoots 24 and 26. The offshoots 24 and 26 start from the lower end of the central portion 22 to then extend downwards, while becoming gradually narrower, on both sides of the foot P below the malleoli K and above the heel T.
Therefore, the insert 20 is essentially in the shape of a reverse Y, whose base starts off at the lower edge 19 of the leg-piece 16 or just slighdy above said lower edge 19. In this embodiment, die application of die insert 20 calls for an aperture 30 to be provided in die vamp 12, in which said aperture is in die same shape as die insert 20, and die insert 20 itself to be attached to die inside surface of die vamp 12 by means of a sewing seam 28 extending all along die entire periphery of the aperture 30. Tests carried out by the Applicant have largely demonstrated die full suitability and effectiveness of the insert 20 in enabling the afore cited aims to be advantageously reached, dianks to the elimination of the air pockets diat tend to form between the inner lining shoe and the external rigid shell in today's ski boots. The level of comfort required to enable die sport practice to be continuously enjoyed by the wearer, even when die foot is fatigued (i.e. swollen) and/or is not in an anatomically ideal shape, is maintained since die insert is capable of effectively opposing the force exerted onto die foot by die external shell of the boot.
In other embodiments falling widiin the scope of the present invention as defined by die appended claims, further to die afore described insert 20 there are provided other suitably shaped inserts arranged in correspondence to the bony protuberance M above the metatarsus N and/or die instep C of die foot P.
It will be readily appreciated diat further embodiments, and variants tiiereof, may be subsequendy developed by those skilled in the art widiout departing from the scope of the present invention as defined by the following claims.
Claims
1. Inner lining shoe (10) of the front entry type intended for use in conjunction with ski boots and other articles of footwear, generally associated to sports gear, of the type provided with an external structure comprising a shell and a sometimes articulated leg-piece, both made of substantially rigid plastic materials, said inner lining shoe comprising a vamp portion (12), onto which there is attached a sole (14), and being characterized in that at least on the part of the vamp portion (12) corresponding to the Achilles tendon (A) of the wearer's foot (P) there is provided an aperture (30) plugged with at least one corresponding insert (20) made of a material that is softer and has a greater elasticity than the material of the parts of said vamp portion (12) other than die one where said aperture (30) is provided, widi the result that air pockets between said inner lining shoe (10) and said shell in die external structure of die boot are thereby eliminated.
2. Inner lining shoe (10) according to claim 1, characterized in that said at least one insert (20) is attached to said vamp portion (12) along the entire periphery of said aperture (30).
3. Inner lining shoe (10) according to claim 2, characterized in that said at least one insert (20) is attached to the inside surface of said vamp portion (12) by means of a sewing seam (28) extending along the entire periphery of said aperture (30).
4. Inner lining shoe (10) according to claim 4, characterized in that said insert (20) includes a central portion (22), which extends vertically along die Achilles tendon (A) of die wearer's foot (P), and a couple of offshoots (24, 26) that start off the lower end of die central portion (22) to dien extend downwards, while becoming gradually narrower, on botii sides of die foot (P) below die malleoli (K) and above the heel (T).
5. Inner lining shoe (10) according to claim 5, characterized in that said insert (20) is provided on its outer surface with a plurality of essentially horizontal or slighdy downward curving corrugations (21).
6. Inner lining shoe (10) according to claim 4, characterized in that, furdier to said insert (20) on the part of the vamp portion (12) corresponding to the Achilles tendon (A) of the wearer's foot (P), it comprises additional suitably shaped inserts arranged in correspondence to die bony protuberance (M) above die metatarsus (N) and/ or die instep (C) of the foot (P).
7. Inner lining shoe (10) according to claim 1, characterized in that said at least an insert (20) is made of a flexible slow-recovery shape-memory syndietic material.
8. Inner lining shoe (10) according to claim 7, characterized in diat said flexible slow- recovery shape-memory synthetic material is a PVC having a density ranging from approx. 80 to approx. 300 g/m3, preferably from 110 to 250 g/m\ and a thickness reduction following compression ranging from approx. 1% to approx. 10%, preferably from 2% to 6%, whereas the parts of said vamp portion (12) other than the one where there is provided said aperture (30) are made of polyethylene backed polyester fibres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2005/000031 WO2006077606A1 (en) | 2005-01-21 | 2005-01-21 | Inner lining shoe for sport footwear having substantially rigid shell and leg-piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2005/000031 WO2006077606A1 (en) | 2005-01-21 | 2005-01-21 | Inner lining shoe for sport footwear having substantially rigid shell and leg-piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006077606A1 true WO2006077606A1 (en) | 2006-07-27 |
Family
ID=34960443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2005/000031 WO2006077606A1 (en) | 2005-01-21 | 2005-01-21 | Inner lining shoe for sport footwear having substantially rigid shell and leg-piece |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2006077606A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013063630A1 (en) * | 2011-11-02 | 2013-05-10 | Fischer Sports Gmbh | Inner shoe for a ski boot |
| EP2599399A1 (en) * | 2011-11-16 | 2013-06-05 | Kelly Rastello | Ski boot system |
| EP3000342A1 (en) * | 2014-09-26 | 2016-03-30 | Rossignol Lange S.R.L. | Inner boot with raised padding for sports footwear |
| EP3000343A1 (en) | 2014-09-26 | 2016-03-30 | Rossignol Lange S.R.L. | Articulated and slotted inner boot for sports footwear |
| US10264845B2 (en) | 2011-11-16 | 2019-04-23 | Kelly Rastello | Ski boot system |
| DE102007040814B4 (en) | 2006-08-30 | 2020-01-23 | Calzaturificio Dal Bello Srl | Inner boots for a rigid boot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4154009A (en) * | 1976-08-04 | 1979-05-15 | Koflach Sportgerate Gesellschaft M.B.H. | Inner shoe for skiing boots or for use with shellike uppers of skiing boots |
| EP0317798A2 (en) * | 1987-11-26 | 1989-05-31 | Calzaturificio Tecnica SpA | Dynamic inner lining shoe for boots |
| US5067257A (en) * | 1990-10-18 | 1991-11-26 | Sven Coomer | Injection fitted boot liner |
| WO2004052134A1 (en) * | 2002-12-11 | 2004-06-24 | Tecnica Spa | Sport footwear having a rigid shell to improve the user's comfort |
-
2005
- 2005-01-21 WO PCT/IT2005/000031 patent/WO2006077606A1/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4154009A (en) * | 1976-08-04 | 1979-05-15 | Koflach Sportgerate Gesellschaft M.B.H. | Inner shoe for skiing boots or for use with shellike uppers of skiing boots |
| EP0317798A2 (en) * | 1987-11-26 | 1989-05-31 | Calzaturificio Tecnica SpA | Dynamic inner lining shoe for boots |
| US5067257A (en) * | 1990-10-18 | 1991-11-26 | Sven Coomer | Injection fitted boot liner |
| WO2004052134A1 (en) * | 2002-12-11 | 2004-06-24 | Tecnica Spa | Sport footwear having a rigid shell to improve the user's comfort |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007040814B4 (en) | 2006-08-30 | 2020-01-23 | Calzaturificio Dal Bello Srl | Inner boots for a rigid boot |
| WO2013063630A1 (en) * | 2011-11-02 | 2013-05-10 | Fischer Sports Gmbh | Inner shoe for a ski boot |
| US9872533B2 (en) | 2011-11-02 | 2018-01-23 | Fischer Sports Gmbh | Inner shoe for a ski boot |
| EP2599399A1 (en) * | 2011-11-16 | 2013-06-05 | Kelly Rastello | Ski boot system |
| US9295301B2 (en) | 2011-11-16 | 2016-03-29 | Kelly Rastello | Ski boot system |
| US10264845B2 (en) | 2011-11-16 | 2019-04-23 | Kelly Rastello | Ski boot system |
| EP3000342A1 (en) * | 2014-09-26 | 2016-03-30 | Rossignol Lange S.R.L. | Inner boot with raised padding for sports footwear |
| EP3000343A1 (en) | 2014-09-26 | 2016-03-30 | Rossignol Lange S.R.L. | Articulated and slotted inner boot for sports footwear |
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