FR2758767A1 - Device for improvement of dynamic load supporting capacity of substrates, loose materials or fluids, e.g. for skiing - Google Patents
Device for improvement of dynamic load supporting capacity of substrates, loose materials or fluids, e.g. for skiing Download PDFInfo
- Publication number
- FR2758767A1 FR2758767A1 FR9700968A FR9700968A FR2758767A1 FR 2758767 A1 FR2758767 A1 FR 2758767A1 FR 9700968 A FR9700968 A FR 9700968A FR 9700968 A FR9700968 A FR 9700968A FR 2758767 A1 FR2758767 A1 FR 2758767A1
- Authority
- FR
- France
- Prior art keywords
- substrate
- substrates
- skiing
- fluids
- improvement
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
- B63B1/042—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull the underpart of which being partly provided with channels or the like, e.g. catamaran shaped
-
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/04—Structure of the surface thereof
- A63C5/0428—Other in-relief running soles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0311—Patterns comprising tread lugs arranged parallel or oblique to the axis of rotation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
La présente invention concerne un dispositif pour améliorer l'efficacité des moyens d'appui dynamiques (chaussures, roues, pneumatiques, skis, raquettes, coques, etc...), conçus pour é-oluer sur des substrats meubles. mouvants ou fluides (sable sec ou humide, graviers, boue. eau. etc. The present invention relates to a device for improving the efficiency of dynamic support means (shoes, wheels, tires, skis, snowshoes, shells, etc.), designed to e-olute on soft substrates. moving or fluid (dry or wet sand, gravel, mud. water. etc.
Habituellement. les appuis sur ces substrats sont réalisés par augmentation de la surface portante du moyen d'appui en adéquation avec le poids et la vitesse de la Inasse à déplacer. Ainsi, en matière d'exemple. on emploie des sandales plus larges pour marcher dans le sable ou la neige. on dégonfle les pneumatiques des v véhicules, on emploie des skis larges pour glisser sur l'eau. Habitually. the supports on these substrates are produced by increasing the bearing surface of the support means in adequacy with the weight and the speed of the Inasse to be moved. So, in terms of example. wider sandals are used for walking in sand or snow. we deflate the tires of the v vehicles, we use wide skis to slide on the water.
L'inconvénient est lié au déplacement des particules constituti-es des composants du substrat d'appui ct à l'énergie nécessaire à ce déplacement (marche dans le sable. bateaux, etc...). The drawback is linked to the displacement of the particles constituti-es of the components of the support substrate ct to the energy necessary for this displacement (walking in the sand. Boats, etc.).
La présente invention entend remédier à cet inconvénient en proposant un dispositif dont le principe est d'éviter que les particules du substrat soient chasses de leur emplacement initial sous l'action de la pression du moyen d'appui. The present invention intends to remedy this drawback by proposing a device the principle of which is to prevent the particles of the substrate from being driven from their initial location under the action of the pressure of the support means.
A cet effet. le dispositif consiste en l'établissement de barrières physiques ou rebords s'opposant au déplacement des particules. Ainsi, quand une pression est exercée sur le substrat mouvant, ses éléments constitutifs ne peuvent s'échapper latéralement et sont contraints de rester sous la force exercée. For this purpose. the device consists of the establishment of physical barriers or edges opposing the movement of the particles. Thus, when pressure is exerted on the moving substrate, its constituent elements cannot escape laterally and are forced to remain under the force exerted.
Ceci est bien entendu fonction des caractéristiques physiques du substrat d'appui et en particulier de sa fluidité et sa coinpressibilité. This is of course a function of the physical characteristics of the support substrate and in particular of its fluidity and its coinpressibility.
Les dessins annexés illustrent l'invention:
I,a figure 1 représente en coupe le déplaceinent des particules du substrat sous l'action d'une pression.The accompanying drawings illustrate the invention:
I, a FIG. 1 represents in section the displacement of the particles of the substrate under the action of a pressure.
La figure 2 représente en coupe l'absence de déplacement lors de l'utilisation du dispositif. Figure 2 shows in section the absence of movement when using the device.
La figure 3 représente l'élément de base du dispositif. Figure 3 shows the basic element of the device.
La figure 4 représente pour exemple la partie supérieure de la bande de roulement d'un pneumatique. FIG. 4 shows for example the upper part of the tread of a tire.
- la surface d'appui est une Interface entre deux éléments sable / air, eau / air
Sous l'effet de la pression les particules S1 et S2 sont chassées vers l'avant puis sur les cotés, le moyen d'appui se frayant un passage au scin du matériau constitutif du substrat d'appui. Il s'enfonce donc plus ou Inoins en prenant la place des particules chassées - Figure I
- à surface d'appui au sol égale, l'utilisation du dispositif décrit emprisonne les particules qui sont contraintes de rester sous le moyen d'appui sans pouvoir s'échapper - Figure 2.- the support surface is an interface between two elements sand / air, water / air
Under the effect of the pressure, the particles S1 and S2 are driven forward then on the sides, the support means making a passage with the grain of the material constituting the support substrate. It therefore sinks more or less by taking the place of the chased particles - Figure I
- with an equal support surface on the ground, the use of the device described traps the particles which are forced to remain under the support means without being able to escape - Figure 2.
Selon des modes paiticuliers de réalisation du dispositif et en référence à ces dessins, on note que l'élément de base est une gouttière composée des éléments suivants
les rebords(1). le fond (2), laréte (3) et les flancs (4) - Figure 3
Selon la plus ou moins grande fluidité et la plus ou moins grande compressibilité du matériau du substrat d'appui (S). les rebords (1). du moyen d'appui (P) seront plus ou moins hauts et plus ou nioins fins. C'cst contre ses flancs (4) que v viennent buter les particules S 1, S2. du substi-at d'appui (S) - Figure 1.According to particular embodiments of the device and with reference to these drawings, it is noted that the basic element is a gutter composed of the following elements
the edges (1). the bottom (2), the ridge (3) and the sides (4) - Figure 3
According to the greater or lesser fluidity and the greater or lesser compressibility of the material of the support substrate (S). the edges (1). of the support means (P) will be more or less high and more or less fine. It is against its sides (4) that v abut the particles S 1, S2. support material (S) - Figure 1.
- les flancs (4) sont plus ou moins inclinés en fonction des caractéristiques du substrat (S) et des qualités demandées au moyen d'appui (P), en particulier, celle de pouvoir passer d'un substrat d'appui (S) à un autre aux caractéristiques différentes. - the sides (4) are more or less inclined depending on the characteristics of the substrate (S) and the qualities required by the support means (P), in particular that of being able to pass from a support substrate (S) to another with different characteristics.
- la taille de l'élément de base peut v varier par rapport à la taille du moyen d'appui (P).Cet élément de base peut être à échelle 1/1. c'est à dire qu'il y a un élément par moyen d'appui (P) . ou bien être adapté à des sols ou usages différents et il peut y en avoir 2 ou plus par nloien d'appui (p). - The size of the basic element can vary from the size of the support means (P). This basic element can be on a 1/1 scale. that is to say that there is an element by means of support (P). or be adapted to different soils or uses and there may be 2 or more per support (p).
- le fond (2) est une ligne ou une surface. - the bottom (2) is a line or a surface.
- l'arête (3) peut être vive ou émoussée
D'autres caractéristiques et avantages de l'invention ressortiront de la description d'un exemple de réalisation donné ci-après à titre indicatif: un pneumatique pour rouler sur le sable sec - Figure 4.- the edge (3) can be sharp or dull
Other characteristics and advantages of the invention will emerge from the description of an exemplary embodiment given below by way of indication: a tire for rolling on dry sand - Figure 4.
La bande de roulement du pneumatique est constituée de plusieurs gouttières longitudinales accolées les unes aux autres pour fonner une succession géométrique de rainures à sections en "V" tronqué. La profondeur des rainures étant de 1, l'espacement entre les rainures est sensiblement de 2. ou plus - Figure 4. The tire tread consists of several longitudinal gutters joined to each other to form a geometric succession of grooves with truncated "V" sections. The depth of the grooves being 1, the spacing between the grooves is substantially 2. or more - Figure 4.
L'inclinaison des branches du "V" est d'environ 300 par rapport à la verticale (angle AOB) mais peut varier en fonction de différents critères propres à l'utilisation du pneumatique. The inclination of the branches of the "V" is about 300 relative to the vertical (angle AOB) but may vary depending on different criteria specific to the use of the tire.
Des séparations transversales (5) de hauteur cloisonnent les rainures en alvéoles pour pennettre l'effet compacteur dans le sens longitudinal mais aussi pour assurer la prise du pneumatique dans le sable compacté et éviter le patinage. Height transverse partitions (5) partition the grooves into cells to allow the compacting effect in the longitudinal direction but also to ensure the grip of the tire in the compacted sand and avoid slippage.
L'angulation de ces séparations (5) est comprise entre 30 et 600 peut rapport à la verticale (angle COD). The angulation of these separations (5) is between 30 and 600 can relate to the vertical (COD angle).
Le reste du pneumatique est confolllle aux techniques connues et ne fait pas partie de la présente invention
L'optimisation de la fonde de la surface de roulement est du domaine de l'expérimentation mais doit répondre au principe même du dispositif inventif En paiiiculier, les séparations. le fond des alvéoles peuvent être asymétriques pour répondre aux impératifs d'évacuation du sable.The rest of the tire is combined with known techniques and does not form part of the present invention
Optimizing the foundation of the running surface is an area of experimentation but must respond to the very principle of the inventive device. In particular, separations. the bottom of the cells can be asymmetrical to meet the requirements of sand evacuation.
La taille des alvéoles val-ic en fonction de la nature du sable et de l'effet recherché sur des sols différents. The size of the val-ic cells according to the nature of the sand and the desired effect on different soils.
En bref, il s'agit d'un pneumatique en creux ou femelle, par rapport aux pneumatiques existants qui sont en relief ou mâles. In short, it is a hollow or female tire, compared to existing tires which are in relief or male.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9700968A FR2758767A1 (en) | 1997-01-24 | 1997-01-24 | Device for improvement of dynamic load supporting capacity of substrates, loose materials or fluids, e.g. for skiing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9700968A FR2758767A1 (en) | 1997-01-24 | 1997-01-24 | Device for improvement of dynamic load supporting capacity of substrates, loose materials or fluids, e.g. for skiing |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2758767A1 true FR2758767A1 (en) | 1998-07-31 |
Family
ID=9503094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9700968A Pending FR2758767A1 (en) | 1997-01-24 | 1997-01-24 | Device for improvement of dynamic load supporting capacity of substrates, loose materials or fluids, e.g. for skiing |
Country Status (1)
Country | Link |
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FR (1) | FR2758767A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2203617A (en) * | 1936-11-18 | 1940-06-04 | Firestone Tire & Rubber Co | Pneumatic tire |
US3467160A (en) * | 1966-05-04 | 1969-09-16 | Shiro Oguri | Tire having sub-tires integral with its sidewalls |
US3538971A (en) * | 1968-08-01 | 1970-11-10 | Pulaski Rubber Co The | Planter wheel tire having soil pinching structure |
FR2336266A1 (en) * | 1975-12-23 | 1977-07-22 | Kleber Colombes | Aircraft pneumatic tyres - have tread strips at least 15 mm thick and less than half tyre width wide to deflect water on runways from jet engine intakes |
WO1984003665A1 (en) * | 1983-03-23 | 1984-09-27 | Bauer Roehren Pumpen | Low pressure tire, particularly for self-propelling sprinkling machines |
-
1997
- 1997-01-24 FR FR9700968A patent/FR2758767A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2203617A (en) * | 1936-11-18 | 1940-06-04 | Firestone Tire & Rubber Co | Pneumatic tire |
US3467160A (en) * | 1966-05-04 | 1969-09-16 | Shiro Oguri | Tire having sub-tires integral with its sidewalls |
US3538971A (en) * | 1968-08-01 | 1970-11-10 | Pulaski Rubber Co The | Planter wheel tire having soil pinching structure |
FR2336266A1 (en) * | 1975-12-23 | 1977-07-22 | Kleber Colombes | Aircraft pneumatic tyres - have tread strips at least 15 mm thick and less than half tyre width wide to deflect water on runways from jet engine intakes |
WO1984003665A1 (en) * | 1983-03-23 | 1984-09-27 | Bauer Roehren Pumpen | Low pressure tire, particularly for self-propelling sprinkling machines |
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