WO2011141137A2 - Sportgerät - Google Patents
Sportgerät Download PDFInfo
- Publication number
- WO2011141137A2 WO2011141137A2 PCT/EP2011/002230 EP2011002230W WO2011141137A2 WO 2011141137 A2 WO2011141137 A2 WO 2011141137A2 EP 2011002230 W EP2011002230 W EP 2011002230W WO 2011141137 A2 WO2011141137 A2 WO 2011141137A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rear portion
- tension
- plastic
- belt
- pressure belt
- Prior art date
Links
Classifications
-
- 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
-
- 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
- A63C5/02—Skis or snowboards collapsible; divided
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
- A63C17/061—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
- A63C17/061—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis
- A63C17/062—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis with a pivotal frame or cradle around transversal axis for relative movements of the wheels
-
- 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
- A63C5/035—Skis or snowboards with ground engaging rolls or belts
-
- 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
- A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
- A63C5/075—Vibration dampers
-
- 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
- A63C5/12—Making thereof; Selection of particular materials
-
- 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
- A63C5/12—Making thereof; Selection of particular materials
- A63C5/124—Selection of particular materials for the upper ski surface
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/40—Runner or deck of boards articulated between both feet
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/42—Details of chassis of ice or roller skates, of decks of skateboards
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
- A63C2203/46—Skateboards or boards for snow having superimposed decks
Definitions
- the invention relates to a sports equipment, which is arranged or attached to the intended use on a foot of a human.
- the sports equipment may, for. B. to a sliding board or snowboard, in particular an alpine ski.
- the sports equipment can also be a cross-country skis, a roller skate or an inline skate.
- the side edge of the ski follows a curve, for which a radius can be calculated depending on the distance of the support points and the waist depth.
- This radius is usually between 10 and 20 meters for Carvingskis, but may be higher or lower.
- the centrifugal force and thus the inclination angle of the driver and the ski towards the inside of the curve can be determined for a stable cornering. This results in the Aufkantwinkel by which the ski is tilted about the longitudinal axis.
- a carving ski is its flexibility about the transverse axis, which is determined by the flexural rigidity about the transverse axis, and the twistability about the longitudinal axis, which is dictated by the torsional rigidity about the longitudinal axis of the ski.
- flexibility of the ski about the transverse axis in combination with a high torsional rigidity of the ski is desired.
- High flexibility in conjunction with high torsional stiffness is due to the design of the ski usually not feasible at the same time.
- the binding in conjunction with the ski boot reduces, ie, reduces, the flexibility of the ski.
- the skier usually does not keep his center of gravity exactly above the design point K. Rather, the skier's center of gravity is in front of or behind the design point, so that the force F off-set with respect to the design point. If the force F acting on the center of gravity is offset longitudinally with respect to the design point in the longitudinal direction, the angular velocity when driving around the travel curve will increase. If the force is offset forward with respect to the design point K, the angular velocity will decrease as it travels around the travel curve. The offset by the construction point K force F results in a distance from the line of force of the force F to the design point K dependent moment.
- the invention relates to a sports device for attaching to a foot of a person.
- a sports equipment can be provided per foot or a common for both feet.
- it may, for. B. to a snowboard, such. B. a ski, particularly preferably an alpine ski act.
- the invention can alternatively be used with roller skis or inline skates.
- the sports equipment can be fastened by means of a shoe to the foot of the person.
- the shoe may be a separate part which is connected to the sports equipment or the sports equipment may comprise the shoe.
- the sports device comprises a device for contact with the ground, which may be referred to as underground contact device. This device may be a roller blind sliding device.
- the sports device can be movable along a substrate in a contact, in particular along rollable or along slidably.
- the rolling or sliding device may have a front portion and a rear portion, wherein the front portion has a roller or a sliding surface for the ground and the rear portion has a roller or a sliding surface for the ground.
- the front portion is arranged in the intended direction of travel in front of the rear portion section.
- the intended direction of travel preferably corresponds to the forward movement of the user of the sports equipment.
- the front portion and the rear portion are preferably separate from each other, which are preferably elongated.
- the longitudinal axis of the front portion and the longitudinal axis of the rear portion may preferably be aligned with each other and in particular form the longitudinal axis of the sports device.
- the front portion may form as a support for at least one, preferably two rollers or a sliding surface and in particular an engagement edge. The same applies accordingly for the rear section.
- the front, in particular carrier-shaped portion can form or receive a bearing for the at least one roller and receive at least one roller which is rotatable relative to the front portion.
- a bearing sliding or ball bearings can be provided, which may be formed of metal, plastic or ceramic.
- the rollers have on their treads preferably a plastic or rubber material, which on the one hand offers good Abrolleigenschaften and on the other hand prevents lateral slipping.
- the front portion and / or the rear portion may each have at least two rollers. The front and / or the rear portion are supported in the longitudinal direction at two contact points on the ground.
- the first roll forms the first contact point with the substrate and the second roll forms the second contact point with the substrate.
- the at least two rollers of the one section and in particular the at least two rollers of the other section are arranged one behind the other in the longitudinal direction. In particular, the rollers of the front and rear sections roll on a common line.
- the underground contact device is a sliding device.
- a sliding surface is arranged on its underside.
- the sliding surface may be formed by a plastic material or a metal, which forms a low coefficient of friction, in particular with snow or ice.
- the sliding surface may be bounded laterally, ie along the longitudinal axis, in particular on both sides by engagement edges, which may preferably be formed from metal, in particular steel. In principle, however, only one engagement edge could be provided, for. B. on the inside, ie at a foot separate sports equipment on the other sports equipment facing edge.
- the engaging edges can be when the sports equipment around the longitudinal axis in engagement with the Get underground.
- the front portion and the rear portion are preferably elastically deformable about their transverse axis, ie the axis which is perpendicular to the longitudinal axis and parallel to the ground or Gleitfikiee, in particular by such a degree that the front portion and the rear portion can cling to a arranged on the underground trajectory.
- the front and the rear portion are elastically deformable so that the engagement edge can be cling to the ground or the trajectory in didactickantetem sports equipment.
- the front portion extend from its rearward end to its opposite, d. H. widened front end, especially steadily.
- the front end portion of the front portion is wider in the direction of the lateral axis than the rear end portion of the front portion.
- the rear portion can widen from its pointing to the front portion end to its opposite, in particular butt end, especially steadily.
- the area of the front end of the rear portion may have a smaller width in the direction of the transverse axis than the area at the rear end of the rear portion.
- the width of the rear end portion of the rear portion may preferably be smaller than or greater than or equal to the width of the front end portion of the front portion.
- the front and the rear portion are arranged to each other so that their engagement edges lie on a common curve, in particular with a common radius.
- the front section and the rear section are connected to a traverse.
- the crossbar may be a separate part from the front and rear sections.
- the cross member spans a region in which the front and the rear portion facing each other, in particular without being attached to this area and / or with a gap or gap between this area or the front and / or rear portion.
- the underground contact device is a sliding device
- the traverse around the transverse axis has a greater moment of resistance to bending than the front and the rear section.
- the traverse also has a higher torsional capability than the front and rear sections.
- the crossbar may thus be considered rigid or rigid relative to the front and rear sections.
- the joint that connects the crossbar with the front or the rear portion is preferably a pivot joint.
- the pivot joint may have at least one or only one rotational degree of freedom.
- the pivot joint is preferably rigidly connected to the front and rear sections for pivotal movement of the traverse relative to the front and rear sections about the longitudinal axis, in particular without any rotational degree of freedom about the longitudinal axis.
- the joint is preferably designed such that it permits a pivoting movement between the traverse and the front section and the traverse and the rear section about the transverse axis, in particular with a rotational degree of freedom about the transverse axis.
- the pivot axis of the respective pivot joint is thus parallel to the transverse axis, ie to the ground and transverse to the longitudinal axis of the sports equipment.
- the pivot joint could pivot between the traverse and the front section and the traverse and rear section around the vertical axis allow, which is less preferred.
- the pivot joint allows a pivoting movement only about the transverse axis.
- the flexural rigidity of the system can be reduced and adjusted accordingly, regardless of the torsional rigidity.
- it can be achieved by the pivotability that the rollers or the engagement edges improve when cornering the ideal driving curve follow.
- a separate construction point may be provided for the front portion and a separate construction point for the rear portion. Due to the design of the sports device with the traverse, the line of action of the force exerted on the front portion bearing force can pass through the construction point. For this purpose, the pivot joint is attached to the construction point. The same applies to the rear section accordingly.
- the front portion and the rear portion could form a common carrier, in particular ski or roller carrier, on which the traverse is placed in the manner described above.
- a ball joint can be used instead of a hinge, which permits torsional movements and pivoting movements.
- the ends of the front portion of the rear portion facing each other may be connected to a flexible band, e.g. B. leather or plastic or metal may be formed.
- the tape can z. B. in the manufacture in the front and / or rear section are integrated, such as. B. be incorporated.
- the band can be attached to the front and rear sections with separate attachment options, such as: B. by means of rivets, screws or an adhesive bond.
- the tape may be z. B. act to a fabric tape.
- the device connecting the ends facing each other can form a flexible or elastic connection.
- the device may, for. As a metallic and / or elastomeric material such. As rubber or rubber, and / or a leather-like material and / or a duoplastic or thermoplastic plastic or be formed therefrom. For example, at least one or two of these materials may be formed into a composite material that forms the connecting device.
- connection between the mutually facing ends of the front and rear sections could comprise a spring member and / or an attenuator
- the spring member By the spring member, the height of the torque to be transmitted about the pivot axis can be set almost arbitrarily.
- the attenuator can pivotal movements, which can export the front and rear sections relative to each dampen.
- the sports equipment can be folded together, whereby it can be transported to save space.
- the transport length can be reduced compared to the operating length.
- the cross member is connected to the front portion with a front attachment means, the attachment means being configured so that the cross member is detachable from the front portion.
- the traverse can be connected to the rear section with a rear fastening device, wherein the fastening device is designed such that the crossbar is detachable from the rear section.
- one of the front attachment means and the rear attachment means may be releasable while the other of the front attachment means and the rear attachment means is undetachable.
- both fastening devices can be insoluble.
- the front fastening device and the rear fastening device preferably each form the above-described joint, in particular pivot joint for connecting the crossbar with the front portion and the rear portion.
- the traverse may have the means by which the sports equipment can be fastened to a foot of a person.
- the device can be a shoe or a binding with which a shoe can be attached to the crosspiece.
- the front and / or the rear fastening device can be configured as a safety bond, which releases the traverse for movement when a maximum load is exceeded. When exceeding the maximum load, such. As in a fall, the crossbar can be detached from the front and / or rear portion or at least move so far that the load is reduced, so that injury to the user is prevented.
- one of front section and rear section about two pivot axes may be pivotally connected to the crossmember and the other from front section and rear section with a, in particular a single pivot axis pivotally connected to the crossbar.
- a single pivot axis pivotally connected to the crossbar.
- a joint in particular a pivoting joint, could be provided, which on the one hand permits a pivoting movement about a single axis and, on the other hand, a displacement movement between the traverse and the corresponding section, in particular transversely or perpendicular to the pivot axis or in the direction of the pivot axis Longitudinal axis of the section.
- a damping element in particular made of rubber, can be arranged between the traverse and the front section and the traverse and the rear section.
- the damping element may be arranged between the front fastening device and the front section and the rear fastening device and the rear section.
- At least one of the front end of the front portion and the rear end of the rear portion may be pulled up to form a so-called blade. If only one of the ends is pulled up, the sports device is designed for the journey substantially only in one direction, namely in the direction in which the blade points. If both ends are equipped with blades, the sports equipment can be used in both directions, ie. H. be driven forwards and backwards.
- the invention has particular advantages in the manufacture of the front and rear portions when they are designed for sliding contact.
- the sliding surfaces between the front and rear end gel must be curved or concave and have a corresponding bias. This is in the production of conventional Carving skis as not easy, since the cross-sections of the ski vary greatly over the length due to the strong sidecut.
- the front portion and the rear portion can get along without bias. Alternatively, they can also be biased. Accordingly, the sliding surface of the front portion and / or the rear portion may be flat or concavely curved in an unloaded state of the sports equipment.
- the front and rear portions can be made by methods that are less expensive than conventional skis.
- Such a method is z. B. an injection molding process in which z. B. the edges of steel inserted into a corresponding shape and with a plastic, the z. B. may be fiber reinforced, to be encapsulated.
- Another invention relates to the construction of a front or rear section described herein, in particular ski section, or a sliding board, in particular a snowboard, preferably skis, for example, a ski shown in the figures la-c.
- This invention may represent an advantageous development of the sports equipment described above or an independent of the sports equipment described above subject.
- the object is to provide a gliding board that is simple in construction and inexpensive to manufacture, and to provide a corresponding manufacturing method.
- the elongate, slide-shaped front and / or rear section, in particular ski section, or the sliding board may comprise an upper train-pressure belt and a lower train-pressure belt spaced therefrom, wherein the upper and lower train-pressure belt of a plastic are surrounded by plastic injection molding.
- a shear-resistant bond between the train-pressure belts and the plastic is formed, whereby the flexural rigidity of the section can be significantly influenced by the design of the train-pressure belts compared to a design without train-pressure belts.
- a neutral fiber is created between the upper and lower tension-compression belts.
- the upper and / or lower tension-pressure belt can be made of plastic, such as. As fiber reinforced plastic, or metal, such as an aluminum or steel alloy formed and in particular be both on train and on pressure loadable.
- the upper and / or lower tension-pressure belt may be plate-shaped, such as formed of sheet metal.
- the injection-molded material is preferably a plastic, such as a thermoset or preferably a thermoplastic material.
- the plastic can be foamed or unfoamed.
- the upper and / or lower tension-compression belt can have a multiplicity of recesses, in particular perforations, into which the injection-molded plastic has been introduced or has been introduced during the production of the composite.
- the recesses pass through the belt from its top to its bottom, d. H. in the direction of its thickness, in particular its sheet or plate thickness.
- the straps can therefore be formed hole-like.
- the recesses or at least a part thereof may, for example, be circular, elliptical, oval or another preferably rounded non-circular shape.
- the recesses of the upper and lower tension-compression belt or engagement edges can be made by punching or be.
- the upper and lower train-pressure belt can be prepared or be by a separation process, in particular stamping, or a separation-forming process, in particular bending punching, or another method known in the art.
- the upper train-pressure belt and the lower train-pressure belt may be formed of separate pieces or in one piece. If the straps are separate, they are separated from each other in particular by the injected plastic. If the straps are in one piece, they can in particular be connected to connecting sections which pass through the neutral fiber.
- the connecting portions may have a plurality of recesses, which may be configured as indicated for the recesses of the tension-compression straps.
- the connecting portions are preferably arranged transversely to the sliding surface of the sliding board.
- the upper tension-compression belt or the plane in which the upper tension-compression belt lies and the lower tension-pressure belt or the plane in which the lower tension-compression belt lies are preferably approximately parallel arranged to the sliding surface.
- the sliding board may have engagement edges, in particular steel edges, which preferably have recesses, in particular perforations.
- the recesses may be formed as described for the train-pressure belts.
- the recesses may overlap with the recesses of the lower tension-compression belt, in particular be congruent.
- the engagement edges may be welded or soldered to the lower tension-compression belt or connected or in contact with a tie layer.
- a bonding layer is, for example, adhesive.
- the bonding layer already exists before the injection of the adhesive.
- the engaging edges together with the lower tension-compression belt can be inserted as a part in the injection mold in the manufacture of the sliding board.
- the recesses preferably have the same pitch and / or the same size and / or the same shape as recesses of the lower tension-compression belt, thereby advantageously allowing unhindered flow of the plastic between the upper and lower sides of the lower tension-compression belt. Belt and engagement edges is enabled.
- These recesses of the lower tension-compression belt are in particular along the longitudinal direction and in the edge regions of the lower For example, train the pressure-belt 1 to 10 mm from the edge of the lower tension-compression belt.
- the gliding board may be at its top, i. on its side facing away from the sliding surface, optionally have an upper shell, which may be provided on its visible side with or without a decor.
- the upper shell may have strength properties which are negligible for the flexural and / or torsional rigidity of the gliding board or which contribute to the flexural and / or torsional rigidity of the glide board.
- the top or the material of the top shell is designed to have a suitable adhesion for printing or other technologies for the production of a decoration.
- the top of the top shell alternatively or additionally have a structure which serves mainly optical properties.
- the top shell may be made by injection molding one or more materials, such as, e.g. As a plastic or plastics, and thus be an injection molded part, but already before the injection of the plastic, with which the train-pressure straps are umgössen already exists.
- the upper shell can have projections, in particular ribs, which are anchored in the molded plastic and / or have projections which serve as spacers for the upper tension-compression belt.
- One or more projections of the upper shell can serve both for anchoring and as a spacer.
- the molded plastic can be arranged between the upper train-pressure belt or a plane in which the upper train-pressure belt is located, and the upper shell.
- the projection or projections may be anchored in the plastic during the manufacturing process of the gliding board by the injection molding of plastic in the plastic.
- the serving as spacers Abragonne serve to keep the upper train pressure belt in such a distance from the upper shell in the manufacture of the sliding board, that distribute the plastic between the upper shell and the upper tension-compression belt and / or through the recesses of the upper train-pressure belt can flow.
- the injection mold in which the upper and lower tension-pressure belt and preferably also the engagement edges are encapsulated with the plastic, serving as spacers for the upper tension-compression belt Abrag12.
- the gliding board can be made with the following steps:
- the upper shell in particular a decorative element is inserted into an injection mold, whereby, for example, at least one spacer in the form of one of the abovementioned projections for the upper tension-compression belt is provided.
- a tip protector or a part of the joint in particular a hinge for the front end and / or a protector or a part of the joint, in particular hinge for the rear end of the gliding board can be inserted into the injection mold.
- the tip protector and the protector for the rear end molds can be provided in the injection mold, in which the respective part can be inserted. If one of the top shell, tip protector and the back end protector is not inserted as a separate part, the injection mold can have corresponding mold sections in which these parts are molded during injection molding.
- a part of the joint can be molded in preferred embodiments during injection molding, d. that is, the part of the joint is made during injection molding.
- the part of the joint may be part of the upper pull-push belt or the lower pull-push belt.
- the front or rear end of the upper or lower tension-pressure belt a manufactured by forming, in particular bending part such. B. form a sleeve or eyelet.
- the part of the joint can be inserted into the injection mold before the injection molding, wherein it is at least partially encapsulated by the plastic or anchored in the plastic by subsequent injection molding.
- the upper tension-pressure belt is inserted into the injection mold, in particular in a provided for the top of the sliding board part of the injection mold, and fixed.
- the lower tension-compression belt to which the engagement edges are or are attached, is preferably inserted into the injection mold together with the engagement edges, in particular into a part of the injection mold provided for the underside of the sliding board. After inserting these parts, the injection mold can be closed.
- Plastic provided in a flowable state in particular a heated thermoplastic, is injected into the injection mold, so that the upper pull-pressure belt and the lower pull-push belt are encapsulated by the plastic.
- the F Strukturf hige plastic is z.
- Through an opening, in particular a hole of the upper tension-compression belt which is preferably larger than the recesses of the upper tension-compression belt, between the lower tension-compression belt (or its plane) and the upper tension belt.
- Pressure belt or injected under the upper train-pressure belt, especially towards the lower train-pressure belt.
- the flowable plastic is divided into a front plastic flow toward a forward end or syringe, and into a rear plastic flow toward a rearward end, relative to the longitudinal direction of the sliding board.
- the upper tension-pressure belt is advantageously pressed against the spacers of the injection mold or the upper shell. Unless one is from the top train-pressure belt Separate lower train-pressure belt is present, the train-pressure belts can be forced apart or held apart by the plastic streams.
- the divided plastic streams are respectively conveyed through a plurality of the recesses of the upper tension-compression belt and / or the lower tension-compression belt to the other side of the upper and / or lower tension-compression belt, i. pressed onto the underside of the lower tension-compression belt or between the sliding surface and the lower tension-compression belt, whereby the plastic also flows through the recesses of the engagement edges and encapsulates the Eingnffskanten and preferably also forms the sliding surface, and on top of the upper Switzerland- Pressure belts pressed, whereby the plastic encapsulates serving for anchoring Abragungen the optionally provided upper shell or forms the top of the sliding board.
- the injection mold may have 1 to 5 depressions or projections extending in the longitudinal direction of the sliding board, which are designed such that they form corresponding projections or depressions on the sliding surface of the sliding board, thereby advantageously increasing the directional stability of the sliding board in its use.
- the recesses or projections, if located in the edge region of the gliding board, may be disposed parallel to the edges or side-cut curve of the gliding board, such as one protrusion or depression for the left and right edges of the glide board.
- the injection mold After solidifying the injected plastic e.g. by cooling the injection mold, the injection mold can be opened and the sliding board removed or ejected. Compared to existing technologies, such a sliding board has the following advantages:
- FIGS. 2a to 2c show a sports device according to the invention under different load cases
- FIG. 2d shows a modification of the sports device from FIGS. 2a to 2c
- FIG. 3 shows a further embodiment of a sports device according to the invention in a side view and a front view
- FIG. 4a shows a cross section through a sliding board of the figures la to lc or a front or rear portion for the sports equipment of Figures 2a to 2d
- FIG. 4b shows an upper tension-compression belt for the device from FIG. 4a
- FIG. 4c shows a lower tension-compression belt for the device from FIG. 4a
- Figure 5 shows a cross section through a modified gliding board of the figures la to lc or a modified front or rear portion for the sports equipment of Figures 2a to 2d.
- FIG 2a shows a sports equipment, which is designed especially for gliding on snow or ice.
- the sports equipment has a front portion 10 and a rear portion 20 which are elongated, and whose longitudinal axes are approximately in alignment.
- the front portion 10 has a raised blade 12 which faces in the direction of travel.
- the front portion 10 and the rear portion 20 are each formed as Schneegleitbretter, in particular skiförmig.
- the facing ends 11, 22 of the forward section 10 and the rearward section 20 are unconnected, but could be connected to a pivot joint 40 in the shape of a hinge, as shown in Figure 2d.
- the pivot joint may also be formed in another of the ways described herein.
- the sports equipment shown in Figure 2d is in principle constructed as the sports equipment of Figures 2a to 2c.
- the front portion 10 and the rear portion 20 are transversely to the longitudinal axis, that is elastically deformable about the transverse axis.
- the first section 10 and the second section 20 are connected by means of a cross member 30, whose flexural rigidity about the transverse axis is significantly greater than that of the first and second sections 10, 20, so that the cross member 30 can also be referred to as rigid or rigid.
- the traverse 30 is fixed by means of pivot joints 13, 23 to the first portion 10 and the second portion 20.
- the pivot joints 13, 23 therefore form in principle torque-free support for the cross member 30 on the first portion 10 and the second portion 20.
- spring member By a arranged on the pivot joints spring member could - if desired - the transmission of a moment from the cross member 30 to the front and / or rear section 10, 20 are realized. Furthermore, a kinematically acting between the cross member 30 and the front portion 10 and / or rear portion 20 attenuator could be provided which dampens pivotal movements between the cross member 30 and the front portion 10 and between the cross member 30 and the rear portion 20.
- FIG 2b the sports equipment of Figure 2a is shown in a loaded state during cornering.
- the deformation is caused by the centrifugal force F, which the driver of the sports equipment on the crossbar 30 exerts.
- the driver is wearing a ski boot which is fastened to the cross member 30 by means of a binding (not shown). Since the force F is located centrally between the front joint 13 and the rear joint 23, it is distributed evenly on the joints 13, 23, wherein the force F / 2 acts on each of the joints.
- the cross member 30 is connected to a pivot joint 13 with the front portion 10, which allows a pivoting movement about only a single axis which is parallel to the transverse axis.
- the cross member 30 is also connected to the hinge 23 with the rear portion 20.
- the joint 23 has two pivot axes, which are parallel to each other and parallel to the transverse axis. Between the two pivot axes, an intermediate piece is arranged, which carries out a pivoting movement relative to the traverse 30 relative to the rear portion 20 and the traverse 30 during a pivoting movement of the rear portion 20.
- the intermediate piece serves as a length compensation when the front portion 10 is pivoted relative to the rear portion 20 by means of the hinge 40.
- Figure 3 shows an alternative sports equipment in the form of a skate having a shoe for receiving a foot.
- pivot hinges 13 for a front support 10 and a second pivot joint 23 for a rear support 20 are arranged on the underside of the shoe.
- the front support 10 has two bearings which each rotatably support a roller 15 relative to the front support 10.
- the rear support 20 has two bearings which each rotatably support a roller 25 relative to the rear support 20.
- the carriers 20, 10 are unconnected, but could z. B. via a joint described herein, alternatively or additionally be connected via a spring and / or a damping element.
- the four rollers 15, 25 shown in Figure 3 are arranged in the longitudinal direction of the traverse 30 in an alignment, namely centrally below the shoe, as can be seen from the side view of Figure 3.
- a so-called grinding takes place while cornering, in which four or five rollers arranged on a straight line are usually moved around the travel curve, resulting in relatively high abrasion on the rollers.
- the arrangement according to the invention provides a remedy here, since the rear support 20 can cling with its rollers 25 independently of the carrier 10 with its rollers 15 to the travel curve.
- the front carrier 10 and the rear carrier 20 can only pivot about a single axis, namely the transverse axis, which is parallel to the axes of rotation of the rollers 15, 25.
- the rear support 20 with the cross member 30 is preferably connected to a joint 23 which permits a length compensation.
- a joint is e.g. shown in Figure 2d.
- the joint 23 has two pivot axes, which are parallel to each other and parallel to the transverse axis. Between the two pivot axes, an intermediate piece is arranged, which carries out a pivoting movement relative to the traverse 30 relative to the rear portion 20 and the traverse 30 during a pivoting movement of the rear portion 20.
- the intermediate piece serves as a length compensation when the front portion 10 is pivoted relative to the rear portion 20 by means of the hinge 40.
- FIGS. 4a and 5 show a cross section transverse to the longitudinal axis of a gliding board or ski, for example of the ski of FIGS. 1a to 1c or of the sections 10, 20 of FIGS. 2a to 2d, which are referred to below as ski 100, wherein Ski also generally a sliding board is to be understood.
- the ski 100 comprises an upper side, which is preferably formed by an upper shell 150 and is arranged facing away from a sliding surface 160 on the underside of the ski 100.
- a decorative element can be arranged or be or the upper shell 150 may have a decorative element.
- the sliding surface 160 is bordered or bounded laterally in the longitudinal direction of the ski 100 by in each case one engagement edge 130, which is preferably formed as a steel edge.
- the engaging edge 130 has a plurality of perforations 131, which in a ratchet r ( Figure 4c) are arranged spaced from each other.
- the steel edges 131 are fastened via a connecting layer 135 directly to a lower tension-compression belt 120, namely on its underside, ie the side facing the sliding surface 160.
- the tension-compression belt 120 and the connection layer 135 each have perforations 121 which are congruent with the perforations 131 of the lower tension-compression belt 120.
- the perforations 121 are arranged along the longitudinal direction of the ski 100 in the edge region of the tension-compression belt 120.
- the perforations 121, 131 formed as elliptical holes whose major axes point in the direction of the longitudinal direction of the ski 100 thus form a passage between the top of the tension-compression belt 120 to the underside of the engagement edge 130.
- the engagement edge 130 is shown in approximately L-shape , wherein one leg is parallel to the tension-pressure belt 120 and the other leg is approximately perpendicular thereto.
- the vertical leg preferably forms the sharpened edge which can engage the ground when using the ski 100.
- the connection layer 135 may, for. B. be an adhesive.
- an upper train-pressure belt 110 is disposed relative to the height of the ski 100.
- the lower tension-compression belt 120 is disposed relative to the height of the ski 100 between the upper tension-compression belt 110 and the sliding surface 160.
- the upper tension-compression belt 110 has a plurality of perforations 113, which may be configured as elliptical holes with a main axis extending in the longitudinal direction of the ski 100.
- the upper and lower tension-compression belts 110, 120 are each spaced from a neutral fiber at a deflection of the ski 100 about a bending axis transverse to the longitudinal direction and parallel to the sliding surface 160, wherein the neutral fiber between the upper train pressure Belt 110 and the lower train-pressure belt 120 is arranged.
- the embodiment shown in FIG. 5 differs essentially only from the embodiment shown in FIG. 4a in that, instead of separate upper and lower tension-compression straps 110, 120, the tension-compression straps 110, 120 are connected to one another, namely via one or more connecting portions 115 which extend through the neutral fiber and are preferably formed of the same material as the upper and lower tension-compression belt 110, 120.
- the upper tension-compression belt 110 and the lower tension-compression belt 120 and the connecting portion 115 are formed in the embodiment of Figure 5 from a single part.
- the upper tension-compression belt 110 and the lower tension-pressure belt 120 are formed by separate parts.
- the connecting portion 115 is preferably disposed at an angle between 45 ° and 90 ° with respect to the upper tension-compression belt 110 and the lower tension-compression belt 120 and also has perforations 116 which may be formed in shape like the perforations of the upper and lower tension-compression belts 110, 120.
- the upper tension-compression belt 110 and the lower tension-pressure belt 120 are overmolded by a plastic 140 injection molded by an injection molding process.
- the plastic is preferably a thermoplastic material, such as. As polyethylene.
- the plastic can be in foamed or unfoamed form. Other suitable plastics are z.
- the fiber-reinforced, such as. B. are glass fiber reinforced. Examples include polyamide 6 or polyamide 12 plastics reinforced with glass fibers.
- the fibers may be z. B. short fibers having a length of, for example, 0.1 to 1 mm, or long fibers z. B. have a length of 1 to 50 mm, act. Plastics containing long and short fibers can still be injection molded.
- the fibers may be inorganic or organic reinforcing fibers.
- the plastic 140 is additionally arranged or injected in the perforations 111, 113, 121, 123 and 131. This results in a substantially shear-resistant connection between the tension-compression straps 110, 120, the edges 130 and the plastic 140.
- the plastic 140, the upper tension-compression belt 110, the lower tension-pressure belt 120 and the edges 130 a composite material.
- the plastic 140 may form the top of the ski 100. If an upper shell 150 is used, it may, for example, have projections (not shown), which likewise be encapsulated by the plastic 140, so that a solid bond between the plastic 140 and the upper shell 150 results. These or other projections (not shown) of the upper shell 150 may serve as spacers for the upper pull-push belt 110, so that the plastic 140 can be distributed between the upper shell 150 and the upper pull-push belt 110.
- the upper tension-compression belt 110 may have an opening 112 which is formed as a hole in the flat formed train-pressure belt, such. B. shown in Figure 4.
- the opening 112 has a larger cross-section than the perforations 111 and 113.
- the opening 112 is approximately centrally with respect to the front and rear end of the ski 100, i. H. arranged in the middle third.
- the opening is likewise elliptical in this example, the main axis pointing in the longitudinal direction of the ski 100.
- a lower train-pressure belt 120 is shown, the front end is curved upwards and forms a ski tip.
- the trailing end of the pull-push belt 120 is also light but not as strong as the front end is upturned.
- the train-pressure belt 120 in its left and right edge portion each having a plurality of perforations 121 which are arranged spaced apart in the longitudinal direction of the ski 100 with one or more locking dimensions r and for example not more than 2mm the side edge of the lower tension-compression belt 120 are arranged to advantageously provide a mechanical connection with the injection-molded plastic.
- a plurality of uniformly distributed perforations 123 are arranged, which are arranged distributed in the region of the upwardly curved front end of the lower tension-pressure belt 120.
- the upwardly curved portion or the ski tip arranged openings which are larger than the perforations 123, 121 on the one hand can cause weight savings and on the other hand, a lower strength in this area, since in the arched area or in the ski tip rather low strength requirements exist.
- the openings may therefore be larger or have a different shape than the perforations arranged between the bulged area or the ski tip and the rear end of the ski 100.
- 4a or 5 are shown, which have a width which is transverse to the longitudinal direction of the ski 100 and smaller than the lower tension-compression belt 120 and a plurality in the longitudinal direction of the edges 130 or the ski 100 has arranged distributed perforations 131 which are spaced from each other with one or more locking measures r.
- the perforations 131 are arranged so that they are congruent with the perforations 121 of the lower tension-compression belt 120.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/697,119 US20130106068A1 (en) | 2010-05-11 | 2011-05-05 | Sports Equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010020253.3 | 2010-05-11 | ||
DE102010020253A DE102010020253A1 (de) | 2010-05-11 | 2010-05-11 | Sportgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011141137A2 true WO2011141137A2 (de) | 2011-11-17 |
WO2011141137A3 WO2011141137A3 (de) | 2012-01-19 |
Family
ID=44583864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/002230 WO2011141137A2 (de) | 2010-05-11 | 2011-05-05 | Sportgerät |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130106068A1 (de) |
DE (1) | DE102010020253A1 (de) |
WO (1) | WO2011141137A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SI24358A (sl) * | 2013-05-22 | 2014-11-28 | Elan, D.O.O. | Sestavljiva smučka |
CN105592896B (zh) * | 2013-08-01 | 2018-07-10 | 大卫·埃尔菲克 | 可乘式板组件及其部件 |
DE102014001548A1 (de) * | 2014-02-08 | 2015-08-13 | Horst Linzmeier | Sportgerät |
EP3115090B1 (de) * | 2015-06-19 | 2019-01-02 | Anton F. Wilson | Sich automatisch anpassender ski |
SI25541A (sl) * | 2017-11-08 | 2019-05-31 | Elan, D.O.O. | Zložljiva smučka |
WO2020149952A1 (en) * | 2019-01-14 | 2020-07-23 | Kenneth Nichols | Ski suspension system and method |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US65396A (en) * | 1867-06-04 | Geoege v | ||
SE116434C1 (sv) * | 1944-03-17 | 1946-05-21 | Skida | |
US3970324A (en) * | 1973-03-05 | 1976-07-20 | American Marine Industries, Inc. | Foam-filled, cellular structural product |
US3853192A (en) * | 1973-10-09 | 1974-12-10 | Saroy Eng | Power driven ski |
US4138128A (en) * | 1977-02-10 | 1979-02-06 | Criss William H | Ski board |
US4163565A (en) * | 1977-07-27 | 1979-08-07 | Weber Robert C | Snow ski apparatus and method of making it |
US4243238A (en) * | 1978-07-14 | 1981-01-06 | Johnson Marvin L | Sled |
IT1181028B (it) * | 1984-11-09 | 1987-09-23 | Marcello Stampacchia | Sci autosterzante ad assorbimento graduale delle sollecitazioni |
FR2604914B1 (fr) * | 1986-10-10 | 1989-10-06 | Rossignol Sa | Procede de fabrication de skis |
US4784233A (en) * | 1987-07-27 | 1988-11-15 | Favors Alexander L | Ski board |
DE4322300C2 (de) * | 1992-07-16 | 2002-12-19 | Atomic Austria Gmbh Altenmarkt | Ski mit einer Schale, einem Untergurt sowie einem vorzugsweise in die Schale integrierten Obergurt und Verfahren zum Herstellen eines Skis |
US5411282A (en) * | 1994-03-04 | 1995-05-02 | Shannon; Walter | System for guiding apparatus over a surface |
US5865446A (en) * | 1996-06-05 | 1999-02-02 | Kobylenski; Mark J. | Articulated two-section snow board |
US5618051A (en) * | 1996-06-05 | 1997-04-08 | Kobylenski; Mark J. | Articulated two-section snowboard |
DE19963965B4 (de) * | 1999-01-07 | 2004-09-16 | Wolfgang Rieg | Zweiteiliges Snowboard zur gesteuerten Fortbewegung auf Schnee und anderen gleitfähigen Medien |
FR2833180B1 (fr) * | 2001-12-07 | 2004-03-12 | Salomon Sa | Dispositif de glisse |
US20100032917A1 (en) * | 2007-01-29 | 2010-02-11 | Design Newron Inc. | Inline roller skate configurations |
US8398093B2 (en) * | 2007-08-07 | 2013-03-19 | Guy Beaudry | Frame for an in-line roller skate having a movable wheel-receiving element |
-
2010
- 2010-05-11 DE DE102010020253A patent/DE102010020253A1/de not_active Ceased
-
2011
- 2011-05-05 WO PCT/EP2011/002230 patent/WO2011141137A2/de active Application Filing
- 2011-05-05 US US13/697,119 patent/US20130106068A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
---|---|
US20130106068A1 (en) | 2013-05-02 |
DE102010020253A1 (de) | 2012-01-19 |
WO2011141137A3 (de) | 2012-01-19 |
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