Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C10/00—Snowboard bindings
  • A63C10/24—Calf or heel supports, e.g. adjustable high back or heel loops
• • 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
  • A43B3/0063—U-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
  • A43B5/0401—Snowboard boots
• • 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
• • 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
  • A43B7/18—Joint supports, e.g. instep supports
  • A43B7/20—Ankle-joint supports or holders

Definitions

• Boot with flexible upper provided with a reinforcement framework, in particular for the practice of snowboarding.
• the present invention relates to a boot with a flexible upper, more particularly intended for the practice of snowboarding.
• snowboard boots There are two main families of snowboard boots; that of rigid plastic shells provided with a flexible internal liner and that with a flexible or partially flexible upper, in fabric, leather or flexible plastic.
• the first category is not really adapted to the modern practice of snowboarding because the practitioners are often brought to move while walking in the snow.
• the invention relates to the second category of flexible shoes more suitable for walking, today, these shoes or boots are designed essentially as simple rising shoes, waterproof and comfortable but without effective role of transmission of the efforts related to the practice. dynamics of the discipline. In most cases, these shoes fit on so-called "shell" bindings comprising a base on which the sole rests and a back element connected to the base and which provides rigid rear support for the lower leg, in particular for make the turns on the back side of the surfer. Sufficient straps ensure the tightening of the shoe in the binding.
• step-in fastening systems consisting in connecting one or more fastening elements connected to the sole of a flexible boot to an automatic locking member fixed on the board.
• step-in fixing is described in application WO 95/09035.
• the flexible shoe undergoes localized reinforcement in particular to ensure rear support.
• the document FR 2 722 371 relates to such a type of boot which comprises an inner part of flexible and deformable liner, an outer part of impermeable flexible upper and, disposed between these two parts; a more rigid shell element on which is articulated along an axis passing through the median longitudinal plane of the shoe, an articulated back element which encloses a part of the calf.
• a shoe has the advantage of favoring cornering on the back side to the surfer effectively thanks to the dorsal element inserted in the structure of the boot, while favoring a certain lateral laxity, either on the interior or exterior side, to allow the surfer to adopt more or less laterally bent leg positions relative to her bust.
• Document EP-A1 -646334 also relates to a boot with an internal frame and an articulated dorsal part.
• the shoe is connected to a plate-shaped base and the tightening on this base is done by straps. This solution therefore takes up certain disadvantages of strap fasteners.
• Patent application FR 2 719 197 proposes another shoe solution with flexible upper and articulated rigid external framework.
• the construction principle of such a shoe allows adaptation to any type of binding, including traditional plate bindings for a shoe with a rigid rising shell derived from alpine.
• the present invention aims to provide a satisfactory solution to the above problem.
• the invention relates to a boot of the flexible type which retains its qualities of comfort while ensuring the transmission of essential forces for good control and good control of the board in each of the conditions of use.
• the invention relates to a boot, in particular intended for the practice of snowboarding, comprising a part of flexible rod and a rigid reinforcement frame.
• This rigid reinforcing frame comprises a lower reinforcing part surrounding the heel at least, a dorsal reinforcing part surrounding the rear region of the lower leg.
• the two parts are connected by a narrowed connection portion comprising, on the external side, a stiffening means which stiffens said portion only during lateral tilting of said upper reinforcing part on the external side of the boot.
• the stiffening means consists of several adjacent abutment elements which come into contact with one another during the lateral tilting of the dorsal reinforcing part on the external side of the boot.
• This construction provides some controlled deformation on the outer side of the shoe and a free deformation on the inner side of the shoe.
• the frame can be made of a single molded plastic part.
• the frame can be integrated into the structure of the shoe as well as being external with respect to the upper of the shoe.
• the outsole of the shoe can also be an integral part of this framework.
• FIG. 1 illustrates a shoe in side view according to the invention
• FIG. 1 shows the internal framework of the shoe of Figure 1;
• FIG. 3 is a rear view of the frame of Figure 2 in the rest position
• FIG. 4 is rear view of the frame of Figure 2 in the bent position on the outer side;
• FIG. 5 is a rear view of the frame of Figure 2 in the bent position on the internal side;
• FIG. 6 is a rear view similar to that of Figure 3 according to a variant
• FIG. 8 shows an external frame shoe according to another possible variant of the invention.
• FIG. 9 is a view of the frame of Figure 8.
• Figure 1 shows a first embodiment of a boot 1 of the flexible type according to the invention. It has, in a manner known per se, a flexible upper 2 and an outer sole 5, suitable for walking, made of a wear-resistant material such as rubber for example.
• the rod 2 is connected to the outer sole 5 by any means known to those skilled in the art, such as by gluing, welding, riveting or other means.
• the sole may include an anchoring member 51, such as a loop for example as shown in FIG. 1, intended to cooperate with a complementary locking member (not shown) integral with the gliding board to form together a device for retainer of the "step-in" type boot, for example.
• the flexible rod 2 can be formed from different parts made of different flexible materials and connected together by different means (sewing, riveting, bonding, etc.). Conventionally, the rod may, for example also have a cover tab and a lacing, not shown. One or more straps complete the tightening of the rod, such as an instep strap 21 for example. Inside this rod which forms the external part of the shoe, an internal liner 4 is inserted which can go up more or less high and exceed the rod for more comfort. It is made of flexible and deformable material completely made of foam for example, or may include a textile or leather envelope padded with flexible foam.
• the boot comprises between the inner boot 4 and the rest of the boot, a reinforcing frame 3.
• the rest of the boot represents the outer rod 2 and the sole 5 which is connected to it , the whole forming an external shoe part.
• this example of construction is not in itself limiting, and one can imagine other types of similar constructions.
• the rigid reinforcing framework 3 alone, comprises a lower reinforcement part 30 surrounding the heel at least, a dorsal reinforcement part 31 surrounding the rear region of the lower leg; the two parts 30, 31 being connected by a narrowed connection portion 32 comprising, on the external side (EXT), a stiffening means 33 which stiffens said portion 32 only during the lateral tilting of said upper reinforcement part 31 on the external side ( EXT) of the boot.
• the stiffening means 33 consists of several abutment elements 330, 331, 332, 333 which come into contact with one another during the lateral tilting of the dorsal reinforcing part 31 on the external side (EXT) of the boot.
• the abutment elements are separated by empty interstices 430, 431, 432.
• the two central elements 331, 332 thus have the shape of fingers delimited on either side by an interstice.
• the elements 330, 333 respectively form part of the edge of the dorsal part 31 and of the edge of the lower reinforcement element 30.
• the framework 3 comprises two opposite lateral shrouds 60, 61, each connecting one side of the dorsal reinforcing part 31 to one side of the lower reinforcing part 30.
• the framework is in the straight position; the dorsal part 31 is aligned with respect to the vertical vertical plane P.
• the dorsal part is driven and inclines until contact with the stop elements 330, 331, 332, 334.
• the inclination can be limited to a particular value to encourage external support during recovery phases, for example, as shown in Figure 4.
• the narrowed portion can flex freely without any hard point or particular stiffness.
• the abutment elements 330, 331, 332, 333 are separated by flexible and elastically compressible elements 530, 531, 532, as it appears in FIG. 6. This allows more progressiveness in the support external.
• These flexible elements can consist of elastomeric or soft plastic pads for example.
• the material According to the characteristics of the material, one will favor rather the restitution of energy if the material is highly elastic (high modulus of elasticity) or rather the damping if the material is chosen from viscoelastic or viscoplastic materials with a damping coefficient of from 0.2 to 1.5, beta coefficient and a shore A hardness from 5 to 90, for example.
• FIG. 7 shows that the abutment elements 330, 331, 332, 333 have an enlarged contact base so as to ensure contact, or compression of the buffers in this case in this particular example, even in the event of combined bending before / external, for example, or alternatively twisting of the frame by rotation of the ankle.
• FIG. 8 shows another embodiment of the invention in which the framework 3 is arranged outside the boot and partially covers the part of flexible rod 2.
• the lower reinforcement part 30 is extended forward to form the lower shell portion 34 and downward to form the walking sole 5 of the boot.
• the lower shell part is a reinforcement part which borders each lateral side of the shoe and which extends at the front end, in the toe region.
• the flexible rod 2 is connected to the edge of this part by any suitable means, such as by bonding, welding, riveting, sewing or a combination of these means.
• dotted line 340 is shown an assembly by sewing, by way of example.
• Figure 9 shows the framework 3 alone.
• the framework 3 is preferably made of a single molded plastic part.
• Sole elements 52, 53 can also be attached and fixed to the framework.
• Length adjusting means can of course be associated with the strap 35.
• the dorsal portion almost entirely surrounds the lower leg.
• the frame is made of a rigid plastic material.
• plastics which may be suitable, mention may be made of the use of polyurethanes, polyamides, ABS, polypropylenes, etc.
• the thickness of the framework can be of the order of 1 to 8 mm, for example.
• the invention is not limited to the embodiments described by way of nonlimiting examples, but includes the technical equivalents making it possible, for example, to produce an internal / external asymmetrical stiffness.
• the flexible elements 530, 531, 532 which separate the abutment elements 330, 331, 332, 333 are injected into a mold during a second injection step, a first injection step consisting in injecting previously the reinforcing framework 3 in the mold.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Epidemiology (AREA)
• Public Health (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9490038

Family Applications (1)

Country Status (7)

Families Citing this family (36)

Family Cites Families (11)

• 1996
  • 1996-03-06 FR FR9603007A patent/FR2745691B1/fr not_active Expired - Fee Related
• 1997
  • 1997-02-28 JP JP9531507A patent/JPH11504559A/ja active Pending
  • 1997-02-28 EP EP97907148A patent/EP0850000B1/de not_active Expired - Lifetime
  • 1997-02-28 AT AT97907148T patent/ATE216850T1/de not_active IP Right Cessation
  • 1997-02-28 WO PCT/FR1997/000358 patent/WO1997032496A1/fr active IP Right Grant
  • 1997-02-28 US US08/913,358 patent/US5901469A/en not_active Expired - Fee Related
  • 1997-02-28 DE DE69712300T patent/DE69712300T2/de not_active Expired - Fee Related

Non-Patent Citations (1)

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