EP3873630A1 - Raquette à neige avec semelle comportant des zones de crampons - Google Patents
Raquette à neige avec semelle comportant des zones de cramponsInfo
- Publication number
- EP3873630A1 EP3873630A1 EP19794692.4A EP19794692A EP3873630A1 EP 3873630 A1 EP3873630 A1 EP 3873630A1 EP 19794692 A EP19794692 A EP 19794692A EP 3873630 A1 EP3873630 A1 EP 3873630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elements
- racket
- snowshoe
- sculpture
- sole
- 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.)
- Pending
Links
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
- A63C13/003—Means thereof for preventing slipping, e.g. crampons, e.g. on frame or shoe plate
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
Definitions
- the present invention relates to a snowshoe comprising a basic structure forming a foot area and a lift area.
- the lift zone includes a lateral overhang on each side of the foot zone and extends towards the rear of the foot zone to form a rear spatula.
- the snowshoe has advantageous characteristics of flexibility and ergonomics.
- Snowshoes have been known items for many years. They were originally designed to allow people to move on soils covered with a large amount of snow. They are also very widespread in the Nordic countries, frequently affected by heavy snowfall. However, these extreme conditions less and less reflect the reality of the current use of snowshoes. Indeed, nowadays, they are mainly used in a "sport and leisure" setting by hikers. The followers are of very varied levels, from the beginner to the expert hiker, the requirements of each level are very different. This heterogeneity forces manufacturers to constantly develop new products to best meet various expectations. There are therefore several product lines today, each with specific advantages. But manufacturers are still looking for innovative solutions that can provide greater comfort and increased dynamic performance.
- snowshoes are composed of a sieve, a front spatula, a rear portion and a fixing system.
- This basic configuration makes it easy to move on snow due to the increased lift, avoiding sinking into the snow.
- the front and rear spatulas are also provided to allow an easy approach, with an unrolling of the foot, facilitating walking by making it more natural.
- this objective is generally not achieved because of the size of the rackets, their shape and their surface often making them difficult to handle.
- the approach of the snowshoer is often difficult, because the walker must lift the front of the racket, pull the racket forward, then lay it flat, without being able to perform a natural and ergonomic unrolling of the foot .
- the rackets have either a double spatula, that is to say a spatula at the front of the foot and another at the rear or a very raised front tip associated with a substantially flat rear portion.
- a double spatula that is to say a spatula at the front of the foot and another at the rear or a very raised front tip associated with a substantially flat rear portion.
- the ergonomics of snowshoes have been improved according to various development axes.
- One of these axes includes the grip of snowshoes thanks to elastomer soles provided with indentations and / or studs.
- document W09506502 describes a snowshoe formed from a semi-flexible platform comprising connecting means for binding a user's shoe to the platform.
- the platform is molded in a semi-flexible plastic which can flex with the shoe, such as for example thermoplastic polyurethane.
- the hardness of the platform is between 50 and 90 Shore D at around 18 ° c. This characteristic makes it a slightly flexible racket but insufficient to obtain real comfort during the unrolling of the foot.
- the underside of the platform is formed with indentations and / or protrusions to increase traction when using snowshoes.
- the circular recesses each contain an oval recess oriented according to their location on the underside.
- the semi-flexible plastic material as well as the indentations make it possible to increase the grip rate of the rackets, which remains however perfectible.
- the document FR2743501 describes a walking racket, in particular on snow, consisting of a substantially flat platform, provided with reversible fastening members of the foot of the user to said platform, made of cellular elastomer.
- This racket is light, rigid but with a certain elasticity and with good grip.
- the underside has studs formed by molding, distributed as a function of the distribution of the load in use. These characteristics allow the user to have a more racket comfortable than conventional rackets and also to have better grip thanks to the distribution of the studs.
- the adhesion provided by the elastomer pads and their distribution do not confer optimum grip on the racket.
- the front part of the racket forces the user to lift the foot more than usual, which can lead to premature fatigue.
- the invention provides different technical means.
- a first objective of the invention is to provide a flexible and ergonomic snowshoe with good traction and braking performance.
- Another objective of the invention is to provide a snowshoe having a good range and optimal grip on any type of ground, in particular on snow with a more or less thick layer.
- Yet another objective of the invention is to provide a snowshoe of simple and inexpensive design.
- Another objective of the invention is to provide a snowshoe that makes walking easier and has the characteristics necessary for the user to have the most natural gait possible.
- the invention provides a snowshoe comprising a basic structure forming a lift zone, said racket comprising a contact face and a fixing face, said lift zone comprising on the side of the face of contact:
- sculpture elements made of elastomeric material arranged over all or part of the foot zone, said sculpture elements being of substantially elongated shape, crossing the bearing zone over a width greater than 25% and preferably more than 40% of the width of the lift area where said sculpture elements are located, said sculpture elements comprising front side walls, and rear side walls;
- At least a portion of the tread elements have a rear side wall inclined so that the free edge of this wall is offset towards the rear of the racket relative to at the edge joined with the rest of the sole;
- At least a portion of the tread elements comprise a front side wall inclined so that the free edge of this wall is offset towards the front of the racket relative to the edge joined with the rest of the sole.
- Such an architecture allows optimum performance to be obtained for each of the zones of the sole.
- the sole being flexible and ergonomic, allowing a foot roll similar to normal walking, the different areas of the foot are thus specialized, the front area being rather intended for traction performance, and the rear area being rather intended for braking performance. More specifically, the crampons tilted in an inverted manner between the front and the rear, make it possible to optimize the performance of each of these zones.
- the front zone provides strong traction and the rear zone provides optimum braking force.
- the profiles of the tread elements create ridges which exert particularly effective traction and braking forces in the snow.
- the racket comprises a plurality of peripheral tread elements substantially elongated in elastomeric material, oriented in the longitudinal direction of the racket, arranged on at least one of the lateral overhangs, said tread elements comprising external side walls (on the external side of the racket) and internal side walls (towards the middle of the sole), at least part of the peripheral tread elements having an internal side wall inclined so that the free edge of this wall is offset towards the center of the sole relative to the edge joining with the rest of the sole.
- peripheral trimming elements allows better stability of the racket, in particular when the racket is in the inclined position. laterally, such as on the mountainside.
- profiles of the tread elements, with an inclined internal side wall create edges which exert particularly effective traction and braking forces in the snow.
- the sculpture elements are continuous or discontinuous.
- said sculpture elements cross the foot area over a width greater than 50% of the width of the foot area where said sculpture elements are located. This arrangement allows better transmission of forces from the foot to the ground.
- the tread elements have their main axis substantially parallel to the transverse axis of the racket.
- the sculpture elements are substantially rectilinear, in the shape of a "V” or in the shape of a “V” reversed between the front of the racket and the spatula.
- the architecture with an inverted “V” shaped area and an inverted “V” shaped area improves traction and braking performance while respecting the natural course of the walk.
- the “V” shaped sculpture elements at the front of the racket make it possible to accentuate the traction forces and the inverted “V” shaped sculpture elements at the rear of the racket allow increase the braking forces.
- the joint use of "V" shapes and inclined walls makes it possible to obtain particularly high performance levels.
- said tread elements are arranged so that their main axis forms an angle alpha less than 60 ° and preferably 45 ° relative to the transverse axis of the racket.
- the front portion of the racket is raised and also includes, on the contact face, a plurality of sculpture elements.
- tread elements are active in particular at the end of the unrolling phase of the foot, to minimize or avoid the tendency to slip and slip, which are frequent when only the front end of the racket remains in contact with the ground.
- the front portion of the racket corresponds substantially to the front of the foot area.
- the removal of the front spatula provides an ergonomic racket and optimal performance.
- the basic structure comprises a reinforcing element, at least a portion of the sculpture elements being mounted in cooperation with said reinforcing element.
- the reinforcing element comprises a main reinforcing element, comprising at least three sectors substantially in the shape of a "T" and corresponding respectively with support zones of the first metatarsus, the fifth metatarsus and the heel , at least a portion of the sculpture elements being mounted in cooperation with said main reinforcement element.
- a main reinforcing element comprising at least three sectors substantially in the shape of a "T" and corresponding respectively with support zones of the first metatarsus, the fifth metatarsus and the heel , at least a portion of the sculpture elements being mounted in cooperation with said main reinforcement element.
- the basic structure and the sculpture elements are elastically deformable. This arrangement makes it possible to obtain a racket flexible enough to adapt to the relief of the ground, but also rigid enough to provide a good level of lift and good grip thanks to the reinforcing element. This characteristic makes it possible to respect physiological walking, in addition by allowing an ergonomic and natural course of the foot.
- the basic structure has a solid surface.
- the absence of screens, holes or perforations gives better lift and creates thermal insulation between the snow and the shoe.
- the basic structure is made of a material of the thermoplastic type, preferably included in the list of the following families: thermoplastic polyurethane, thermoplastic elastomer such as, for example, polyethylene vinyl acetate or styrene butadiene styrene.
- the density of polyethylene vinyl acetate is substantially 0.1 to 0.2, and of polyurethane thermoplastic or elastomeric thermoplastic is substantially 0.4 to 0.8.
- the basic structure comprises a secondary reinforcement element having a level of rigidity lower than that of the main reinforcement element, said secondary reinforcement element extending between said sectors of the main reinforcement element, at least a portion of the sculpture elements being mounted in cooperation with said secondary reinforcement element.
- the sculpture elements include strips. These slats are preferably oriented in the same direction as the sculpture element.
- the slats can be external, and / or internal. In the latter case, in the event of wear, the internal strips are exposed when the wear rate corresponds to the positioning of the internal strip.
- FIG. 1 is a schematic representation of an example of a racket contact face
- FIG. 2 is a schematic representation, seen from above, of a snowshoe capable of using a contact face such as that of FIG. 1;
- FIG 3 is a schematic representation of the racket of Figure 2, a perspective view
- FIG. 4A is a schematic representation of an example of a racket contact face laid flat to display all the zones on a single plane;
- FIG. 4B is a view in longitudinal section of the sole of FIG. 4A, illustrating the profiles of the sculpture elements along the sole;
- FIGS. 4C and 4D are cross-section views at different positions of the sole of FIG. 4, illustrating the profiles of the sculpting elements over the width of the sole.
- FIGS. 1 to 3 illustrate, from various points of view, an example of a racket according to the invention.
- the racket 1 comprises a basic structure 2 comprising a foot zone 3 and a lift zone 4 which surrounds the foot zone 3, except at the front of the foot zone, where the racket ends in forming a front portion 7.
- This front portion includes a front spout 8 corresponding substantially to the front of the foot area 3. This results in a racket without front spatula, greatly promoting ergonomics and comfort Steps.
- the user can use his snowshoes by walking in a manner similar to normal walking with shoes, by unrolling the foot, that is to say by first placing the heel, then the sole of the foot, and finally the front of the foot. The unrolling then continues with the lifting of the heel while keeping the toes on the ground.
- the front spout 8 is advantageously in the form of a curve, forming a sort of protective shell for the front end of the shoe.
- the lift area 4 On each side of the foot area 3, the lift area 4 includes a lateral overhang 5. At the rear, the lift area 2 extends beyond the foot area 3 to form a spatula 11 back. As clearly visible in Figure 2, the basic structure has a solid surface.
- the lift zone 4 thus provides an optimal weight distribution effect, for minimal sinking in the snow, and for a well-balanced approach.
- the continuity of the surface also provides good thermal insulation, protecting the feet from cold and humidity.
- the basic structure 2 is preferably made from an elastically deformable material, giving it great flexibility of use.
- the deformability of the basic structure allows the rear spatula to bend under the effect of the weight of the walker when the latter approaches his heel and puts it down.
- the flexibility of the racket also makes it possible to optimize the ergonomic behavior, in accordance with and respecting the biomechanics of the foot, which generates walking with a course of the foot, as previously mentioned.
- the base structure 2 is advantageously made of a thermoplastic type material, preferably included in the list of the following families: polyurethane thermoplastic, elastomeric thermoplastic.
- polyurethane thermoplastic preferably included in the list of the following families: polyurethane thermoplastic, elastomeric thermoplastic.
- polyethylene vinyl acetate or styrene butadiene styrene is used.
- the material of the base structure 2 can be expanded or unexpanded, depending on the applications.
- the rear spatula 11 is preferably asymmetrical and advantageously has a clearance 15 releasing the inner side. As shown in Figure 3, the rear spatula 11 is raised and / or twisted outward. It preferably has an opening 19.
- the racket 1 has a contact face 23 and a fixing face 24.
- the contact face 23 advantageously corresponds to the lower surface 17 of the base structure 2.
- a plurality of tread elements 20 made of rubber material are arranged on all or part of said foot area 3. These sculpture elements may be continuous or discontinuous.
- the sculpting elements 20 are of substantially elongated shape and pass through the foot area 3 over a width greater than at least 25% and more preferably greater than 40% of this area, the width being measured at the location of the sculpture element in question.
- Such an architecture makes it possible to produce numerous successive relatively long edges, effective in traction and in braking.
- a maximum of the racket surface is used to produce many areas of elongated edges.
- the sculpting elements 20 pass through the foot area 3 over a width greater than 50% of this area.
- the sculpture elements can have several types of profiles, such as for example a substantially straight profile or in the shape of a "V".
- some sculpture elements 20 are arranged so that their main axis forms an alpha angle less than 60 ° and preferably 45 ° relative to the transverse axis of the racket .
- said sculpture elements 20 have front side walls 25 and rear side walls 26. In the front portion of the foot area, at least a portion of the sculpture elements 20 have a rear side wall 26 inclined so that the free edge of this wall is offset towards the rear of the racket with respect to the edge joined with the rest of the sole.
- At least a portion of the tread elements 20 have a front side wall 25 inclined so that the free edge of this wall is offset towards the front of the racket relative to the edge joined with the rest of the sole.
- the inclination of the inclined walls is between 5 ° and 30 °, and more preferably between 8 ° and 20 °.
- At least one lateral projection 5 of the contact face 23 includes a plurality of peripheral trimming elements 21 substantially elongated and oriented in the longitudinal direction of the racket. Similar to the transverse tread elements 20, the peripheral trimming elements 21 arranged on the edges, and oriented in the longitudinal direction of the racket, provide an arrangement of active edges capable of stabilizing the racket well to prevent it from slipping. laterally when the walker is on laterally inclined terrain.
- the peripheral sculpture elements 21 provide an arrangement in the form of slots. This slot-like arrangement provides a double effect.
- the longitudinally oriented portions allow the racket to be stabilized on inclined or sloping ground.
- peripheral sculpting elements 21 also make it possible to produce an external grip zone complementary to the rest of the surface of the racket.
- the peripheral tread elements 21 include external side walls 27, on the external side of the racket, and internal side walls 28, towards the inside of the sole.
- At least a portion of the peripheral sculpting elements 21 comprise an internal lateral wall 28 inclined so that the free edge of this wall is offset towards the center of the sole relative to the edge joined with the rest of the sole.
- the inclination of the inclined walls is between 5 ° and 30 °, and more preferably between 8 ° and 20 °.
- the front portion 7 of the racket is raised and also includes, on the contact face, a plurality of sculpture elements 20. These sculpture elements make it possible to lengthen the area. traction to allow transmission of force until the end of the unrolling phase of the foot.
- the front portion 7 of the racket corresponds substantially to the front of the foot area 3, as shown for example in Figures 2 and 3.
- Such an arrangement coupled to the tread elements 20 and 21 makes it possible to obtain a perfectly ergonomic racket, the performance of which is significantly increased. Indeed, the natural gait and the unrolling of the foot while respecting the biomechanics of the human body makes it possible to transmit increased forces to the sole area in comparison with a traditional racket.
- the tread elements therefore receive the mechanical impulses of the walker practically without interference, and can thus transform these impulses into traction, or even into braking force, as the case may be.
- the traction and braking performance thus obtained exceeds the potential performance of conventional rackets, which are affected by imperfect ergonomics and by the presence of a front tip.
- the basic structure 2 comprises reinforcing elements.
- the tread elements 20, 21 are mounted in cooperation with at least a portion of the reinforcing elements. The efforts of the walker are thus directly transmitted to the sculpture elements, which can thus act directly in the snow, for optimal efficiency.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1871347A FR3087663A3 (fr) | 2018-10-31 | 2018-10-31 | Raquette a neige avec semelle comportant des zones de crampons |
PCT/IB2019/059054 WO2020089735A1 (fr) | 2018-10-31 | 2019-10-23 | Raquette à neige avec semelle comportant des zones de crampons |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3873630A1 true EP3873630A1 (fr) | 2021-09-08 |
Family
ID=68344941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19794692.4A Pending EP3873630A1 (fr) | 2018-10-31 | 2019-10-23 | Raquette à neige avec semelle comportant des zones de crampons |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210394039A1 (fr) |
EP (1) | EP3873630A1 (fr) |
CN (1) | CN112955235B (fr) |
CA (1) | CA3117497A1 (fr) |
FR (1) | FR3087663A3 (fr) |
WO (1) | WO2020089735A1 (fr) |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511087A (en) * | 1949-01-04 | 1950-06-13 | Albert A Willemur | Snowshoe binding |
US4638576A (en) * | 1985-04-24 | 1987-01-27 | Converse Inc. | Athletic shoe with external counter and cushion assembly |
FR2702157B1 (fr) * | 1993-03-04 | 1995-04-21 | Thones Sports Loisirs | Perfectionnement pour raquette à neige. |
US5720120A (en) * | 1993-09-01 | 1998-02-24 | Smith; Peter | Snow shoe |
FR2724117B1 (fr) * | 1994-09-02 | 1997-07-18 | Bibollet Jean Claude | Raquette a neige |
WO1996027414A1 (fr) * | 1995-03-06 | 1996-09-12 | Philippe Gallay | Perfectionnement pour tamis de raquette a neige |
FR2743501B1 (fr) | 1996-01-11 | 1998-03-13 | Gouillardon Gaudry | Raquette de marche |
US5727339A (en) * | 1997-01-11 | 1998-03-17 | Owen; David B. | Ski boot auxiliary shield |
FR2852856B1 (fr) * | 2003-03-24 | 2006-04-07 | Cedric Claude Touzalin | Raquette a neige pouvant se transformer en engin de glisse |
US20060005425A1 (en) * | 2004-07-12 | 2006-01-12 | Votolato Earl J | Elastic overshoe with slip resistant sole pads |
FR2912038A1 (fr) * | 2007-02-07 | 2008-08-08 | Michelin Soc Tech | Chaussure de sport de haute performance |
US7832120B2 (en) * | 2007-10-08 | 2010-11-16 | Man-Young Jung | Anti-slip footwear |
US8171658B2 (en) * | 2008-11-24 | 2012-05-08 | K-2 Corporation | Snowshoe with flexible tail |
FR2955466B1 (fr) * | 2010-01-25 | 2012-04-20 | Salomon Sas | Chaussure a semelage ameliore |
US9504293B2 (en) * | 2011-04-18 | 2016-11-29 | Nike, Inc. | Outsole with extendable traction elements |
US20120317840A1 (en) * | 2011-06-14 | 2012-12-20 | Lacrosse Footwear, Inc. | Footwear assemblies with enhanced traction and associated methods of use and manufacture |
ITCR20120012A1 (it) * | 2012-05-28 | 2013-11-29 | Vignati Luigi Srl | Ciaspola |
US9491985B2 (en) * | 2013-11-14 | 2016-11-15 | Shoes For Crews, Llc | Outsole tread pattern |
PL3206764T3 (pl) * | 2014-10-15 | 2019-10-31 | Robert Erwin Behrens | Rakieta śnieżna |
EP3275328B1 (fr) * | 2015-03-23 | 2022-05-04 | ASICS Corporation | Semelle de chaussure présentant une performance de préhension améliorée |
US10112104B2 (en) * | 2016-03-15 | 2018-10-30 | Cresent Moon Snowshoes, Inc. | Snowshoe with multi-density foam deck |
CN205696021U (zh) * | 2016-04-29 | 2016-11-23 | 湖北小公牛鞋业有限责任公司 | 一种轮胎底纹防滑鞋底 |
US20190231029A1 (en) * | 2018-01-30 | 2019-08-01 | The North Face Apparel Corp. | Footwear |
US20220104577A1 (en) * | 2020-10-01 | 2022-04-07 | Tenacious Holdings, Inc. | Multi-Surface Traction Sling |
-
2018
- 2018-10-31 FR FR1871347A patent/FR3087663A3/fr active Pending
-
2019
- 2019-10-23 CN CN201980070837.4A patent/CN112955235B/zh active Active
- 2019-10-23 US US17/290,084 patent/US20210394039A1/en not_active Abandoned
- 2019-10-23 CA CA3117497A patent/CA3117497A1/fr active Pending
- 2019-10-23 EP EP19794692.4A patent/EP3873630A1/fr active Pending
- 2019-10-23 WO PCT/IB2019/059054 patent/WO2020089735A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US20210394039A1 (en) | 2021-12-23 |
CN112955235A (zh) | 2021-06-11 |
CN112955235B (zh) | 2022-10-28 |
CA3117497A1 (fr) | 2020-05-07 |
FR3087663A3 (fr) | 2020-05-01 |
WO2020089735A1 (fr) | 2020-05-07 |
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