EP0647103B1 - Highly flexible item of sports footwear - Google Patents
Highly flexible item of sports footwear Download PDFInfo
- Publication number
- EP0647103B1 EP0647103B1 EP94910388A EP94910388A EP0647103B1 EP 0647103 B1 EP0647103 B1 EP 0647103B1 EP 94910388 A EP94910388 A EP 94910388A EP 94910388 A EP94910388 A EP 94910388A EP 0647103 B1 EP0647103 B1 EP 0647103B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- item
- sole
- footwear
- front portion
- footwear according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0018—Footwear characterised by the material made at least partially of flexible, bellow-like shaped material
-
- 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
- A43B5/0411—Ski or like boots for cross-country
-
- 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
- A43B5/047—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot
- A43B5/0472—Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot having a flexible toe portion; provided with a hinge at the ball of the foot
-
- 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
- A43B5/0492—Telemark boots
Definitions
- the present invention relates to a highly flexible item of sports footwear.
- footwear used for some specific skiing techniques such as the so-called “telemark” and “cross-country” techniques, must have particular technical characteristics that ensure optimum longitudinal flexing of the item of footwear and excellent resistance to lateral torsion while allowing even prolonged use of the item of footwear on mixed terrain, uphill and downhill, and maintaining excellent comfort for the user's foot, and must ensure lateral support and precise transmission of movements to the ski.
- the aim of the present invention is to eliminate the drawbacks described above by providing a highly flexible item of sports footwear that provides considerable comfort since compressions of the metatarsal region during its flexing are eliminated.
- an important object of the invention is to provide an item of sports footwear that allows to vary the value of its flexibility and tilt according to the user's requirements.
- Another object of the invention is to provide an item of sports footwear that has excellent rear support and enormously facilitates rolling of the foot while the user is walking.
- Another object of the invention is to provide an item of sports footwear that can be advantageously assembled with known processes involving gluing, direct injection or mechanical assembly, with a rigid or partially rigid shell or with a conventional leather upper, preserving the main characteristics of extremely high flexing and tilting.
- Another object of the invention is to provide a highly flexible item of sports footwear having a high degree of industrialization, so as to reduce its production costs and facilitate its sale to the public.
- the highly flexible item of sports footwear generally designated by the reference numeral 1
- the highly flexible item of sports footwear comprises, in a front portion, a first unidirectional articulation means, generally designated by the reference numeral 2, which is conveniently arranged at the natural flexing axis of the foot to allow the gradual tilting of the upper 3 with respect to the sole 4 of the item of footwear.
- the first articulation means 2 is formed by a recess in the material in a downward region of the front portion of the upper, so that the upper forms, together with the sole 4, a wedge-shaped space 5 that facilitates the inclination of the front part of the upper and thus the flexing of the item of footwear.
- This solution facilitates ideal support of the skier and provides the fastest possible weight shifting, avoiding compressions of the upper on the metatarsal region of the skier due essentially to the corrugation of the upper.
- a first flexible means is furthermore provided between the upper 3 and the sole 4 and comprises a bellows-like part 6, preferably made of plastics, that is connected to the front portion of the upper 3 at one end and to the sole 4 at the opposite end, so as to sealingly close the wedge-shaped space 5.
- a second unidirectional articulation means which is suitable to cooperate with the first articulation means to vary the flexibility and the tilt of the item of footwear.
- the second articulation means can include, as shown in Figures 1 and 2, one or more easy-flexing regions 7 that are formed on the sole by providing one or more notches.
- the second articulation means comprises a tip 8 which is hinged, by virtue of a hinge 9, to the plantar arch 10 of the sole by virtue of a pivot 11.
- the pivot 11 engages respective holes formed on two wings 12 of the tip 8 and a central expansion 13 which lies between the wings 12 and extends from the plantar arch 10.
- the second articulation means allows high resistance to lateral torsion and considerable precision in transmitting the movements from the shoe to the ski.
- the wings 12 have a retention block 15 that allows the tip 8 to rotate toward the upper 3 of the item of footwear but not in the opposite direction, when the tip is perfectly co-planar with respect to the plantar arch 10.
- the item of footwear can have a second flexible means that includes a block 16 which is accommodated in a corresponding seat 17 formed on the sole 4 and particularly, as shown in Figure 10, in the tip 8.
- the block 16 is also wedge-shaped so as to follow the wedge-like shape of the space 5.
- the block 16 comprises at least two regions 18 and 19 offering different resistance to the compression force that occurs between the front portion of the upper 3 and the sole 4 during the flexing and tilting of the item of footwear.
- the item of footwear furthermore has at least one locking part and particularly two links 20 which are hinged to the tip 8 at one end and to the front portion of the upper 3 at the opposite end.
- the links 20 cooperate with the retention block 15 if the tip 8 is articulated to the plantar arch 10.
- the links 20 allow to lock the front portion of the upper with respect to the sole in a position for the maximum opening of the wedge-like space 5.
- the item of footwear according to the present invention has a part for connecting the front portion of the upper 3 to the sole 4 in a position in which the wedge-shaped space 5 is completely closed, as shown in Figures 11 and 12.
- the connecting part can be formed by a pin 21 that simultaneously engages a hole that passes inside the sole 4 and the holes formed in two wings 22 provided on the upper 3.
- the devised solution allows the flexibility and inclination of the item of footwear and ensures excellent lateral stability and resistance to torsion with exceptional comfort, since the compressions produced by the upper on the metatarsal region during the flexing of the item of footwear are eliminated.
- the item of footwear allows to adjust the value of its flexibility and inclination, of its rear support and of its rolling action for walking.
- An additional advantage provided by the solution is that it can be assembled, with known processes involving gluing, direct injection or mechanical assembly, to any item of footwear obtained from an upper or rigid or partially rigid shell or to a conventional item of footwear while maintaining the above mentioned main characteristics of flexing and inclination.
- the invention thus conceived is susceptible to numerous modifications and variations, within the scope of the appended claims; all the details may furthermore be replaced with technically equivalent elements.
- the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.
Abstract
Description
- The present invention relates to a highly flexible item of sports footwear.
- As is known, footwear used for some specific skiing techniques, such as the so-called "telemark" and "cross-country" techniques, must have particular technical characteristics that ensure optimum longitudinal flexing of the item of footwear and excellent resistance to lateral torsion while allowing even prolonged use of the item of footwear on mixed terrain, uphill and downhill, and maintaining excellent comfort for the user's foot, and must ensure lateral support and precise transmission of movements to the ski.
- However, current items of footwear are not free of drawbacks.
- For example, compression often occurs on the metatarsal region during the flexing of a known shoe due to the corrugation of the upper of the item of footwear, consequently reducing the comfort of the item of footwear.
- Furthermore, in footwear of this type the flexibility and tilt of the item of footwear are almost exclusively entrusted to the elastic characteristics of the materials used to manufacture it, and particularly to the sole of the item, in order to ensure both precise ski control when turning and high resistance to lateral torsion and to flexibility in the metatarsal region.
- Obviously, since the materials employed must simultaneously have several different requirements to ensure good technical performance, the consequent result is always poor.
- The aim of the present invention is to eliminate the drawbacks described above by providing a highly flexible item of sports footwear that provides considerable comfort since compressions of the metatarsal region during its flexing are eliminated.
- Within the scope of this aim, an important object of the invention is to provide an item of sports footwear that allows to vary the value of its flexibility and tilt according to the user's requirements.
- Another object of the invention is to provide an item of sports footwear that has excellent rear support and enormously facilitates rolling of the foot while the user is walking.
- Another object of the invention is to provide an item of sports footwear that can be advantageously assembled with known processes involving gluing, direct injection or mechanical assembly, with a rigid or partially rigid shell or with a conventional leather upper, preserving the main characteristics of extremely high flexing and tilting.
- Another object of the invention is to provide a highly flexible item of sports footwear having a high degree of industrialization, so as to reduce its production costs and facilitate its sale to the public.
- This aim, these objects and others are achieved by a highly flexible item of sports footwear, as claimed in claim 1.
- Further characteristics and advantages of the item of sports footwear according to the present invention will become apparent from the following detailed description of a preferred but not exclusive embodiment thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
- Figures 1 to 4 are schematic lateral elevation views of the item of sports footwear according to the invention;
- Figures 5 to 8 are schematic lateral elevation views of the gradual inclination of the upper of the item of footwear with respect to the sole thereof, according to the invention;
- Figure 9 is a schematic partial view of the front part of the item of footwear, illustrating the first and second means for its articulation;
- Figure 10 is an exploded perspective detail view of the first and second articulation means according to the invention; and
- Figures 11 and 12 are schematic views of the part for connecting the front portion of the upper and the sole to allow easy rolling for walking.
- With particular reference to the above described figures, the highly flexible item of sports footwear according to the present invention, generally designated by the reference numeral 1, comprises, in a front portion, a first unidirectional articulation means, generally designated by the
reference numeral 2, which is conveniently arranged at the natural flexing axis of the foot to allow the gradual tilting of the upper 3 with respect to the sole 4 of the item of footwear. - The first articulation means 2 is formed by a recess in the material in a downward region of the front portion of the upper, so that the upper forms, together with the sole 4, a wedge-
shaped space 5 that facilitates the inclination of the front part of the upper and thus the flexing of the item of footwear. - This solution facilitates ideal support of the skier and provides the fastest possible weight shifting, avoiding compressions of the upper on the metatarsal region of the skier due essentially to the corrugation of the upper.
- A first flexible means is furthermore provided between the upper 3 and the sole 4 and comprises a bellows-
like part 6, preferably made of plastics, that is connected to the front portion of the upper 3 at one end and to the sole 4 at the opposite end, so as to sealingly close the wedge-shaped space 5. - Obviously, depending on the type of material and the structure used to provide the bellows-
like part 6, it is possible to modify at will the value of the reaction force that acts when the upper 3 moves toward the sole 4. - In order to avoid relying exclusively on the elasticity of the material of the sole for the flexing thereof toward the front portion of the upper 3, on the sole, proximate to the first articulation means 2, there is at least a second unidirectional articulation means which is suitable to cooperate with the first articulation means to vary the flexibility and the tilt of the item of footwear.
- Particularly, the second articulation means can include, as shown in Figures 1 and 2, one or more easy-
flexing regions 7 that are formed on the sole by providing one or more notches. - In a different embodiment, the second articulation means comprises a
tip 8 which is hinged, by virtue of ahinge 9, to theplantar arch 10 of the sole by virtue of apivot 11. - The
pivot 11 engages respective holes formed on twowings 12 of thetip 8 and acentral expansion 13 which lies between thewings 12 and extends from theplantar arch 10. - In this manner, the second articulation means allows high resistance to lateral torsion and considerable precision in transmitting the movements from the shoe to the ski.
- Conveniently, the
wings 12 have aretention block 15 that allows thetip 8 to rotate toward the upper 3 of the item of footwear but not in the opposite direction, when the tip is perfectly co-planar with respect to theplantar arch 10. - In addition to the bellows-
like part 6, the item of footwear can have a second flexible means that includes ablock 16 which is accommodated in acorresponding seat 17 formed on the sole 4 and particularly, as shown in Figure 10, in thetip 8. - Conveniently, the
block 16 is also wedge-shaped so as to follow the wedge-like shape of thespace 5. - Conveniently, the
block 16 comprises at least tworegions - In this manner, by virtue of the two
regions like part 6, it is possible to vary at will, and according to the user's requirements, the characteristics of flexing and longitudinal tilting of the item of footwear, so as to enhance its technical performance and its excellent comfort even with prolonged use on mixed terrain. - The item of footwear furthermore has at least one locking part and particularly two
links 20 which are hinged to thetip 8 at one end and to the front portion of the upper 3 at the opposite end. - As can be easily understood, the
links 20 cooperate with theretention block 15 if thetip 8 is articulated to theplantar arch 10. - If instead the sole 4 is provided with
flexing regions 7, as shown for example in Figures 1 and 2, thelinks 20 allow to lock the front portion of the upper with respect to the sole in a position for the maximum opening of the wedge-like space 5. - It should also be added that in order to facilitate walking, the item of footwear according to the present invention has a part for connecting the front portion of the upper 3 to the sole 4 in a position in which the wedge-
shaped space 5 is completely closed, as shown in Figures 11 and 12. - Particularly, the connecting part can be formed by a
pin 21 that simultaneously engages a hole that passes inside the sole 4 and the holes formed in twowings 22 provided on the upper 3. - The operation of the item of footwear according to the invention is evident from what has already been described and illustrated; particularly, the fact is stressed that the rotation axis located in a downward region of the tip of the foot allows the best control of the ski and effective transmission of efforts between the shoe and the ski, eliminating any energy dispersion.
- The devised solution allows the flexibility and inclination of the item of footwear and ensures excellent lateral stability and resistance to torsion with exceptional comfort, since the compressions produced by the upper on the metatarsal region during the flexing of the item of footwear are eliminated.
- Furthermore, advantageously, the item of footwear allows to adjust the value of its flexibility and inclination, of its rear support and of its rolling action for walking.
- An additional advantage provided by the solution is that it can be assembled, with known processes involving gluing, direct injection or mechanical assembly, to any item of footwear obtained from an upper or rigid or partially rigid shell or to a conventional item of footwear while maintaining the above mentioned main characteristics of flexing and inclination.
The invention thus conceived is susceptible to numerous modifications and variations, within the scope of the appended claims; all the details may furthermore be replaced with technically equivalent elements. - In practice, the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.
- Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.
Claims (10)
- Highly flexible item of sports footwear comprising, in a front portion, at the axis of natural flexing of the foot, a first unidirectional articulation means (2) formed by a recess in the material in a downward region of the front portion of the upper (3), said recess being suitable to form a wedge-shaped space (5) between said front portion of said upper and the sole (4) for the gradual tilting of at least said upper (3) with respect to said sole thereof, a first flexible means (6) being furthermore provided between said upper and said sole, whereby the value of the flexing of said item of footwear may be varied.
- Item of footwear according to claim 1, characterized in that it comprises, on said sole, at said first articulation means (2), at least one second unidirectional articulation means (7, 8, 9, 10, 11) that cooperates with said first articulation means to vary said flexibility of said item of footwear.
- Item of footwear according to claim 1, characterized in that said first flexible means comprises a bellows-like part (6) which is connected to said front portion of said upper (3) and said sole (4) to sealingly close said wedge-shaped space (5).
- Item of footwear according to claim 2, characterized in that said second articulation means comprises an easy-flexing region (7) formed on said sole.
- Item of footwear according to claim 2, characterized in that said second articulation means comprises a tip (8) of said sole which is pivoted to the plantar arch (10) thereof by virtue of a pivot (11) that engages respective holes formed on two wings (12) of said tip and a central expansion (13) that lies between said wings and extends from said plantar arch.
- Item of footwear according to claim 6, characterized in that said wings (12) have a rear retention block (15) for the unidirectional rotation of said tip with respect to said plantar arch.
- Item of footwear according to claim 1, characterized in that it comprises a second flexible means (16, 17) which is accommodated in said space (5) and comprises at least one block (16) that engages a corresponding seat (17) formed on said sole.
- Item of footwear according to claim 8, characterized in that said block (16) comprises at least two regions (18, 19) having different resistance to the compression force produced between said front portion of said upper and said sole during the flexing of said item of footwear.
- Item of footwear according to claim 1, characterized in that it comprises at least one part (20) for locking said front portion of said upper with respect to said sole in a position for the maximum opening of said wedge-shaped space.
- Item of footwear according to claim 1, characterized in that it comprises a part (21) for connecting said front portion of said upper to said sole in a position for completely closing said wedge-shaped space.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI930512A IT1272104B (en) | 1993-03-17 | 1993-03-17 | HIGH FLEXIBILITY SPORT FOOTWEAR |
ITMI930512 | 1993-03-18 | ||
PCT/EP1994/000688 WO1994021148A1 (en) | 1993-03-17 | 1994-03-08 | Highly flexible item of sports footwear |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0647103A1 EP0647103A1 (en) | 1995-04-12 |
EP0647103B1 true EP0647103B1 (en) | 1997-01-22 |
Family
ID=11365389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94910388A Expired - Lifetime EP0647103B1 (en) | 1993-03-17 | 1994-03-08 | Highly flexible item of sports footwear |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0647103B1 (en) |
JP (1) | JP3572075B2 (en) |
AT (1) | ATE147946T1 (en) |
DE (1) | DE69401560T2 (en) |
IT (1) | IT1272104B (en) |
WO (1) | WO1994021148A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4343485C1 (en) * | 1993-09-14 | 1995-03-30 | Rottefella As | Arrangement of a cross-country ski binding |
NO315639B1 (en) * | 2001-06-05 | 2003-10-06 | Linken Binding As | ski boot |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1685349B2 (en) * | 1967-05-10 | 1976-11-18 | SKI BOOTS WITH A CUB-SHAPED SOLE BODY | |
FI59324C (en) * | 1976-11-24 | 1981-08-10 | Ukko Uuno Hietala | KONSTRUKTION AV SULAN HOS EN SKIDSKO |
SU963447A3 (en) * | 1977-12-15 | 1982-09-30 | Hietala Ukko Uuno | Footwear for racing skis |
FR2478441A3 (en) * | 1980-03-24 | 1981-09-25 | Baron Paul | Boot for cross country skiing - has two plates joined by piano hinge in its sole |
DE3275156D1 (en) * | 1982-06-11 | 1987-02-26 | Nike International Ltd | Sole for cross-country ski shoe |
DE3306618A1 (en) * | 1983-02-25 | 1984-08-30 | Josef 7550 Rastatt Klagmann | METHOD FOR MAKING A SKIING SHOE |
US4677769A (en) * | 1986-02-28 | 1987-07-07 | Eddress Ahmad | Footwear with pivotal toe |
AT398887B (en) * | 1991-04-22 | 1995-02-27 | Ribarits Ladislaus Peter Mag | SPORTSHOE FOR SKIING AND SNOWBOARDING |
-
1993
- 1993-03-17 IT ITMI930512A patent/IT1272104B/en active IP Right Grant
-
1994
- 1994-03-08 JP JP52059194A patent/JP3572075B2/en not_active Expired - Fee Related
- 1994-03-08 DE DE69401560T patent/DE69401560T2/en not_active Expired - Fee Related
- 1994-03-08 EP EP94910388A patent/EP0647103B1/en not_active Expired - Lifetime
- 1994-03-08 WO PCT/EP1994/000688 patent/WO1994021148A1/en active IP Right Grant
- 1994-03-08 AT AT94910388T patent/ATE147946T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1994021148A1 (en) | 1994-09-29 |
IT1272104B (en) | 1997-06-11 |
ATE147946T1 (en) | 1997-02-15 |
DE69401560D1 (en) | 1997-03-06 |
ITMI930512A0 (en) | 1993-03-17 |
EP0647103A1 (en) | 1995-04-12 |
JPH07506756A (en) | 1995-07-27 |
JP3572075B2 (en) | 2004-09-29 |
ITMI930512A1 (en) | 1994-09-17 |
DE69401560T2 (en) | 1997-09-11 |
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