Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C13/00—Snow shoes
  • A63C13/005—Frames therefor

Definitions

• the present invention relates to a snowshoe.
• the user's shoe is fixed by means of straps, forming a harness, or by means of a plate, optionally pivotally mounted around a substantially horizontal axis and disposed in the vicinity of the sieve, on which the shoe is stowed, or also by means of a rubber boot into which the shoe is introduced.
• the method of fixing the shoe to the racket itself makes it possible to decide between the two main families of snowshoes: the so-called “Canadian” snowshoes and the so-called “French” snowshoes.
• the so-called "Canadian” snowshoes are characterized by a fixing immobilizing the boot in longitudinal and lateral translation relative to the racket, while allowing the rotation of this boot at the level of the forefoot, in a plane substantially perpendicular to the support surface of the screen, around an axis, fictitious or real, disposed in the immediate vicinity of the screen and parallel to the latter.
• An opening, generally called a window, starting in front of this axis is made in the sieve to clear the area swept by the forefoot when the foot tilts during the stride.
• Snowshoes called "French” generally smaller than the previous ones are characterized by a system of fasteners now pressed against the sieve the sole of the shoe, over its entire length, seeking to avoid displacement as much as possible. rotation or translation of the shoe relative to the racket and the racket therefore accompanies the shoe in all its movements.
• the so-called “Canadian” snowshoes allow a much easier and less tiring walk thanks to their larger surface ensuring a better lift and therefore less penetration into the snow layer and thanks to the swivel attachment to avoid lifting the entire racket with each stride.
• the present invention therefore seeks to remedy the aforementioned drawbacks by proposing a snowshoe design making it possible on the one hand to avoid the accumulation of snow between the sole of the shoe and the upper face of the sieve and on the other hand to present a profile offering as little resistance as possible when moving the racket forward during the stride while still ensuring good retention of the racket, backward during climbs, and laterally when crossing slopes.
• One of the complementary objectives of the invention is also to seek to minimize the weight of said racket to best limit the fatigue of the user.
• the snowshoe according to the invention consists of a peripheral frame delimiting an interior surface comprising a front part, which we will designate below under the term of front sieve, extending over the entire width of the racket, from the front end of the racket to the vicinity of the front end of the shoe, when the latter rests on the racket, and a main part, which we will designate below as a sieve main support, extending longitudinally, over the entire width of the racket, from the vicinity of the front end of the shoe to the rear end of the racket.
• the main support screen comprises, in the central part, in the zone on which the shoe rests, structural elements, intended to support said shoe, and which we will refer to below. -after under the term of central structure.
• the main support sieve of the snowshoe according to the invention consists of elements, longer than wide, and which we will designate in this document by the term of intermediate support elements, connected by one of their ends of the racket frame and the other of their ends to the central structure, said intermediate support elements being characterized in that they have at least part of their front face oriented obliquely to the plane PI tangent to the face bottom of the sole of the shoe when the latter rests on the sieve, the aforementioned obliquity, oriented towards the front of the racket, being defined by the acute angle c ⁇ that forms, on a straight section of the element intermediate support concerned, its inclined lower part mentioned above with the plane PI, the acute angle ⁇ having its so ⁇ inet directed towards the front part of the
• the front face of said intermediate support elements can be flat, left, concave or convex.
• the sides of at least some of the above-mentioned intermediate support elements are extended by a wing towards the front or towards the rear, or towards the front and the rear, over at least part of the length of said intermediate support elements.
• the upper face of at least some of the intermediate support elements is not parallel to the plane PI but has, in cross-section, at least a part facing the front of the racket at an acute angle -y with respect to the plane PI and this over at least part of the length of said intermediate support elements concerned.
• the intermediate support elements are arranged in fishbones in the direction of travel either obliquely and symmetrically with respect to the vertical plane P2 of general symmetry of the racket, arranged perpendicular to the plane PI, the main edges of said intermediate support elements forming, when the racket is viewed in plan, an acute angle ⁇ > with the plane P2.
• the longitudinal edges of the intermediate support elements can be rectilinear or curvilinear and be parallel to one another or not.
• the zones extending laterally on either side of the central structure, from the latter and up to the peripheral frame consist solely of: rows of intermediate support elements without any other intersecting element.
• the elements, constituting the frame and the central structure, which are not arranged longitudinally have at least the lower part of their front face inclined relative to the plane PI at an acute angle close to o (.
• the underside of support of the racket on snow as well as the upper face of the racket may not be flat but may each have, in the transverse direction, at least one concavity, and / or at minus a convexity, the corresponding transverse cross section being able to be of curvilinear shape as well as of polygonal shape.
• the underside of the racket may notably have two concavities situated on either side of a central boss while the upper face of the racket is convex.
• the snowshoe is monolithic, the elements constituting the frame, the central structure, the front screen and the main support screen being produced with the same thermoplastic material and molded in a single operation by injection.
• the angle a the above-mentioned will advantageously be between 15 ° and 60 ° the angle ê will advantageously be between 30 ° and 80 ° and the angle ⁇ f will advantageously be between 0 ° and 45 °.
• FIG. 1 is a top view of a snowshoe according to the invention.
• Figure 2 is a side view of a snowshoe according to the invention.
• Figure 3 is a cross section along I, I, of Figure 1.
• FIG. 4 is an enlarged view of the section along II, II, of Figure 1.
• FIG. 5 and 6 are enlarged views of the section along II, II, of Figure 1 showing alternative embodiments.
• Figure 10 is a top view showing an alternative embodiment of a snowshoe according to the invention.
• Figure 11 is a section along II-II illustrating a preferred variant of the intermediate support elements.
• the snowshoe according to the invention bearing the general reference (1), consists of a frame (2) delimiting an interior surface comprising a front screen (3) and a main support screen (4) in the central part of which is located a central structure (5) supporting the shoe (6).
• Intermediate support elements (7) arranged obliquely to the plane P2 at an acute angle ft having a value of 60 ° in this example, are connected by one of their ends (71) to the frame (2) and by the 'other of their ends (72) to the central structure (5).
• These intermediate support elements (7) have their front faces (78) inclined relative to the plane PI at an acute angle ⁇ , having a value of 45 ° in this example, and their upper faces (75) are inclined relative to the plane PI of an angle r-, having a value of 30 ° in the example presented in Figure 4.
• said elements (7) are extended in the direction of the front of the racket by a wing (73) whose front part (75) of the upper face is inclined relative to the plane PI of an acute angle ⁇ ) having a value of 45 ° in this figure. Only part of the front face (78) is inclined at the acute angle ⁇ ( In the alternative embodiment presented in FIG. 6, the intermediate support elements (7) have their front face
• FIG. 7 shows an alternative embodiment in which the upper face (9) of the main support screen is not flat and parallel to the plane PI, as in the example presented in FIG. 4, but convex, of polygonal section , while the lower face (8) of the main support screen is flat and parallel to the plane PI.
• FIG. 8 shows an alternative embodiment in which the lower face (8) of the main support screen is convex in the transverse direction while the upper face (9) of the main support screen has in the transverse direction two concavities, (13) and (14), located on either side of a central boss (15) on which the shoe (6) rests.
• FIG. 9 shows another alternative embodiment in which the upper face (9) of the main support screen is convex in the transverse direction while the lower face (8) of the main screen has in the transverse direction two concavities, (16 ) and (17) located on either side of a central boss (18).
• FIG. 10 shows an alternative embodiment in which the intermediate support elements (7) are curvilinear in their longitudinal direction and the frame (2) of the racket (1) is extended rearwards by a tail (10), an opening (11) formed at the junction of the screen front (3) and the main support screen (4) also allowing the use of a fixing that can pivot about an axis (12).
• FIG. 11 illustrates in cross section a preferred embodiment of the intermediate support elements (7).
• the support elements (7) have a cross section as shown, with a front face (78) inclined with a transverse profile in S.
• Their central part (79) is of relatively thick section and inclined, tapering towards the bottom, extending upwards and forwards by a thinner front wing (73) generally horizontal, and extending downwards and backwards and tapering along a shorter curved rear wing (76).
• the cell (80) between two successive intermediate support elements thus has a shape favoring the evacuation of snow downwards, opposing the rise of snow above the PI plane, and favoring the progression of the racket towards the 'avan.

Landscapes

• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
• Lubricants (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9466704

Family Applications (1)

Country Status (5)

Cited By (4)

Families Citing this family (1)

Citations (3)

Family Cites Families (1)

• 1994
  • 1994-09-02 FR FR9410629A patent/FR2724117B1/fr not_active Expired - Fee Related
• 1995
  • 1995-09-01 WO PCT/FR1995/001139 patent/WO1996007457A1/fr active IP Right Grant
  • 1995-09-01 AT AT95929919T patent/ATE176169T1/de not_active IP Right Cessation
  • 1995-09-01 DE DE69507621T patent/DE69507621D1/de not_active Expired - Lifetime
  • 1995-09-01 EP EP95929919A patent/EP0781158B1/de not_active Expired - Lifetime

Patent Citations (3)

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