Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C1/00—Skates
  • A63C1/22—Skates with special foot-plates of the boot
  • A63C1/28—Pivotally-mounted plates
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C9/00—Ski bindings
  • A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps

Definitions

• the subject of the present invention is a device for articulated attachment of a shoe to a sporting article, in particular a sliding sport such as ice skating, roller skating, cross-country skiing, etc.
• FR 2 659 534 it is already known to have an articulated connection of a shoe to a sporting article such as roller skating, ice skating, in order to increase the momentum when practicing sport. .
• the document provides for either an articulation of the shoe on the sports article at the location of the big toe in the shoe so as to allow maximum rotation of the shoe, or an articulation at the metatarsophalangeal articulation zone. of the foot so as to guarantee a smooth running of the foot.
• the maximum rotation of the shoe makes it possible to maximize the momentum of the leg during the motor phase but is carried out to the detriment of the precision and the guidance of the shoe, in particular with a flexible sole necessary for a smooth running of the foot.
• the articulation at the level of the metatarsophalangeal articulation axis makes it possible to improve the guidance, to the detriment, however, of the course of the foot and the momentum.
• WO 96/37269 aims to solve the same problem, namely to maximize the thrust force or momentum when practicing sport by proposing a construction with multiple chassis in which the chassis are able to pivot and translate the one over the other.
• the preferred embodiments of this WO 96/37269 comprise at least four articulated rods that can be translated relative to one another. This results in an extremely complicated, heavy, expensive, difficult to implement and fragile construction, especially if the sport must be practiced in an aggressive environment (cold, snow, dust, etc.).
• WO 96/37269 also proposes another construction using gears and therefore also extremely complicated and costly to produce, and moreover very sensitive to dirt, cold, snow, etc..
• each of the constructions of WO 96/37269 can only authorize fairly limited deflections of the shoe, and between 20 ° and 48 °, these small deflections being detrimental to good practice of the activity.
• the object of the present invention is to remedy the above drawbacks and to provide an improved fastening device which makes it possible in particular to maximize the momentum transmitted by the leg, while being compatible with good guidance of the shoe, a great travel and good gesture precision.
• Another object is also to provide a fixing device which is simple in construction, inexpensive, not bulky and which is not very sensitive to external conditions, and in particular to cold and snow.
• the device for fixing a shoe to a sporting article comprises a base intended to be fixed on the sporting article, a connecting member to the shoe comprising means for anchoring to a front area of the shoe, a link rod from the link member to the base, the link being articulated on the one hand on the base, and on the other hand on the link member, the articulation axis of the rod on the base being disposed at the rear of the hinge axis of the connecting member on the rod.
• the connecting member fixed on a front zone of the shoe, stiffens the latter and therefore makes it possible to preserve the desired precision of movement, while a construction with a single link is simple, minimal, compact and inexpensive.
• FIG. 1 is a side view of the fastening device according to the invention in the raised position, the shoe being shown in phantom,
• FIG. 2 is a rear perspective view of the fixing device in FIG. 1,
• FIG. 3 is a view similar to FIG. 2 in the low position
• Figure 4 is a view similar to Figure 1 in the lower position.
• FIG. 1 shows the fastening device 10 according to the invention ensuring the connection of a shoe 2 and a sports article 1.
• the fixing device consists of a base 11 fixed on the upper face of the sports article 1, of a link 20 articulated on the base 11 around a transverse axis 21, of a connecting member 30 , articulated along a transverse axis 31 on the link 20, and of an elastic return means 40, constituted in this case by a strip of elastic material such as rubber or pebax.
• the connecting member 30 is in the form of a beam consisting of two rods 32, braced on the one hand at the front by the transverse axis 31 of articulation on the link 20, and on the other hand by a pin 33 disposed at the rear of the two links.
• These pins 31, 33 also serve as anchoring means on the shoe and are intended to cooperate with means complementary to the sole or the upper of said shoe (not shown in the drawing).
• Other anchoring means can obviously be envisaged and in particular the beam 30 can be integrated into the sole of the shoe, for example by overmolding, during manufacture or be fixed thereto by screws, ri vets, ... etc.
• Removable anchoring means that is to say allowing rapid removal of the shoe can also be provided.
• the connecting member 30 can also be produced in a different way and can in particular be constituted by a beam in one piece, in stamped sheet metal, or in other synthetic material, etc.
• the beam defined by the connecting member 30 preferably has a length corresponding to that of the front zone, which extends from the front end to the metatarsophalangeal articulation zone, of a shoe, or slightly almost a third of the length of a shoe.
• This beam 30 not only aims to achieve the connection of the shoe with the sports article, but also to stiffen the shoe so as to allow better guidance and transmission of forces when lifting it during practice. Sport.
• the beam 30 can also have a completely different shape and be notably longer or shorter.
• each of the links 32 has a curvilinear profile 34 in the form of a ramp by which each of these links 32 is supported on the base 11.
• This curvilinear ramp 34 cooperates with said base 11 during the pivoting of the shoe so to reproduce a movement of rotation and translation corresponding to the movement of unwinding of the foot at the big toe.
• This construction makes it possible to reproduce a movement of unwinding of the foot, as if the axis of articulation of the shoe was fixed to the front end thereof, while retaining the precision of a rigid sole, since the sole is stiffened in fact by the beam 30, and this to the end of the toes, that is to say by providing a maximum moment of impulse.
• the construction according to the invention therefore makes it possible to reconcile maximum guidance and precision of the gesture with also maximum power transmission.
• a rubber band 40 is fixed at 41 and 42, for example by screws, on the base 11, at the front and at the rear of the beam 30 and on either side of its support zone on the sports article.
• This strip 40 also passes over an axis 35, or spacer, arranged transversely between the two links 32, at the rear of the ramp 34.
• the rubber band 40 exerts at the level of the axis 35 on the beam 30, and therefore on the shoe 2 which is linked to it, a permanent effort F of elastic return towards the upper surface 1 of the sporting article .
• This construction assists in bringing the sports article back against the sole of the shoe at the end of the impulse phase and avoids any interference of the latter with the surface on which said sport is practiced.
• the point 35 of application of the force F is located at the rear of the ramp 34, but in front of the articulation axis 21 of the rod 20, to avoid a position of balance of the shoe raised with respect to the sports article 1 in the absence of stresses on the part of the user.
• the elastic band 40 can be replaced by any other elastic return means, and in particular spring, producing the same effect.
• the link 20 is in the form of a single piece whose ends consist of two arms 22 braced on the one hand by the pivot axis 31 of the beam 30, and on the other hand by the axis of articulation 21 of the link on the base 11, each of these axes 21, 31, being arranged at each end of said link 20, the axis 21 being disposed at the rear of the axis 31.
• the link 20 can also be made up of several parts.
• this fixing device is very simple. In the absence of any effort on the part of the user, the beam 30 is pressed against the base 11 under the effect of the elastic return means 40 (cf. FIGS. 3 and 4).
• the beam 30 and the link 20 simultaneously rotate clockwise (arrows R) around their respective axes 31, 21, the beam 30 also pivoting on the base 11 in a succession of supports constituting as many axes of instantaneous rotation and moving along the curvilinear ramp 34.
• the pivoting of the beam 30 on the base 11 along the curved ramp 34 makes it possible to reproduce a rotational and translational movement corresponding to the natural unwinding movement of the foot at the level of the big toe thereof, and therefore makes it possible to reconcile the benefit of maximum impulse torque and the preservation of natural sensations of touch with the guiding and precision characteristics of a rigid sole.
• this construction also allows maximum rotation, with an angle ⁇ , of the order of 60 ° and more, between the beam 30 and the base 11, which therefore reproduces a complete course of the foot to the end of the big toe.
• this angle of rotation ⁇ can even be greater than 60 ° depending on the desired practice. The value of this angle ⁇ will depend on the elastic means 40 and on the shape of the curved ramp 34.
• Such an angle of rotation which is much greater than the angles of travel authorized by known constructions, is particularly advantageous in most of the sports concerned and in particular in cross-country skiing, whether in the so-called classic technique or in the so-called skating technique or not. skater.

Landscapes

• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Holders For Apparel And Elements Relating To Apparel (AREA)
• Massaging Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9530197

Family Applications (1)

Country Status (7)

Families Citing this family (24)

Family Cites Families (24)

• 1998
  • 1998-09-02 FR FR9811171A patent/FR2782652B1/fr not_active Expired - Fee Related
• 1999
  • 1999-08-24 EP EP99940232A patent/EP1109604B1/de not_active Expired - Lifetime
  • 1999-08-24 WO PCT/FR1999/002029 patent/WO2000013755A1/fr not_active Ceased
  • 1999-08-24 AT AT99940232T patent/ATE241409T1/de not_active IP Right Cessation
  • 1999-08-24 DE DE69908378T patent/DE69908378T2/de not_active Expired - Lifetime
  • 1999-08-24 US US09/763,614 patent/US6499761B1/en not_active Expired - Fee Related
• 2001
  • 2001-02-28 NO NO20011018A patent/NO314573B1/no not_active IP Right Cessation

Non-Patent Citations (1)

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