Abstract: To obtain three-dimensional depth effects, a decorating method is provided for sports equipment, in particular skis, snowboards and the like, by imprinting synthetic material films with surface texture so as to create a decorative changing image and/or animation effect. The synthetic material films correspond to an optical lens, in particular lenticular grid films. The film is imprinted in the screen printing method, whereupon the film is joined to the piece of sports equipment. On its planar side, the film is provided with geometrically arranged motifs or image elements, between which optionally voids are incorporated.

Abstract: A light-weight construction core made of wood for sliding bodies, e.g., skis, in particular cross-country skis, having grooves or slits (3), respectively, arranged in longitudinal rows, which grooves or slits extend in the longitudinal direction of the ski and are offset row-wise relative to each other, wherein the grooves or slits (3), respectively, preferably in the binding region are formed to be open towards the running surface only and—viewed in longitudinal section—are designed to be circular-arc-shaped or elongate having rounded corners.

Abstract: Method for machining steel edges for skis or the like, the steel edge being at least partly rapidly heated, then rapidly cooled again and consequently hardened with the aid of a plasma jet. In order to provide a method, which in economic manner can ensure the uniform and precisely defined hardening of steel edges of skis and the like in a randomly long longitudinal portion and in which simultaneously the energy can be applied in a more gentle and planned manner and a less complicated guidance of the plasma jet is rendered possible, an electric arc is produced between the cathode and the anode of the plasma head and a gas flow is passed through said arc and the anode of the plasma head, accompanied by the production of a plasma jet and the steel edge to be hardened is electrically connected as an anode in synchronized manner with the plasma head anode, i.e.

Abstract: Ski, in particular downhill ski, comprising a binding mounting plate provided above the ski body and fixed thereto at least in part at a distance therefrom, wherein at least one guide means 5, 7, 8, 10 is provided which guides the binding mounting plate 2 in a plane normal to the surface of the ski body 1 and parallel to the longitudinal ski axis, and prevents twisting of the plate 2 or of regions thereof about an axis parallel to the longitudinal ski axis.

Abstract: A running surface for a ski, in particular a cross-country ski, in which at least in partial regions of the length and width of the ski a plurality of running surface indentations in the form of ramps successively stepped in the longitudinal direction of the ski are provided which in longitudinal section comprise a sawtooth-like profile which inhibits backward sliding. In the region of the stepped ramp (3) which has a shallow rise in the longitudinal direction of the ski, a secondary step is provided, the kick-off edge (6) of the secondary step (5) being positioned at a lower level than the kick-off edge (4) of the stepped ramp (3).

Abstract: The shield of a ski-boot, which covers the instep region of the wearer's foot, is formed from a succession of individual elements which are overlapped in a fishscale-like manner so as to transmit pressure exerted by the wearer's leg or ski to the lowermost of the element which is fixed to the toe end of the boot undershell. The individual elements are guided on a central lenghtwise strap.

Abstract: A ski comprising a ski body component (1) and a trough (2). The ski body component is a prefabricated component which is formed from a core (3), steel edges (6 and 6', respectively), a running surface coating (7) and possible intermediate layers. To produce the ski, the prefabricated ski body component (1) is introduced into a trough-shaped mould (9), a space being left free for the production of the trough, whereupon the free space is filled with plastics material, preferably by a RTM method.

Abstract: In a frame (1') for ball game racquets made of plastic the abrasion and cutting of the guts against the edges of passages in the frame is avoided. For that purpose the frame (1') comprises a center strip (3) of thermoplastic resin, the hardness of which is less than or equal to the hardness of the guts. Hollow profiles (4, 5) of duroplastic, fibre-reinforced synthetic resin are moulded onto both sides of the center strip. The passages are drilled into the center strip (3) after the frame has been produced and then the frame is strung.

Abstract: A component for cladding apertures in the fuselage of an aircraft is to be of lighter weight and more corrosion resistant as compared with known claddings. The component is manufactured of carbon fibre reinforced curable synthetic resin and comprises a base layer (2) onto which U-profiles (4, 4') and L-profiles (5, 5') are placed in spaced apart interrelationship, which during the manufacture are held in place by a grid (14) comprising angular bridge members. A vacuum foil (7) is applied over this assembly and is adhesively bonded along the edges of the base layer (2') to the supporting surface (1). The space between the vacuum foil (7) and the supporting surface (1) is evacuated and curing proceeds at an elevated temperature and pressure. After complete curing the vacuum foils (7) and the grid (14) are removed.

Abstract: A ski, particularly suitable for cross-country skiing having a coating on at least a portion of the running surface thereof. The coating is of a basic material and has at least one portion including at least one further material. The basic material and the at least one further material have different hardness values. The basic material is a thermoplastic material and at least one of the further materials is an elastomeric material. The elastomeric material may be embedded in the thermoplastics material in the form of insert members. The invention also relates to a ski-shaped coating for application to a ski.

Abstract: A ski comprising a ski body component (1) and a trough (2). The ski body component is a prefabricated component which is formed from a core (3), steel edges (6 and 6', respectively), a running surface coating (7) and possible intermediate layers. To produce the ski, the prefabricated ski body component (1) is introduced into a trough-shaped mould (9), a space being left free for the production of the trough, whereupon the free space is filled with plastics material, preferably by RTM method. The sole FIGURE serves and the FIGURE for the Abstract.

Abstract: A structural panel in the form of a sandwich construction, comprises a core and at least one cover layer on at least one external surface of the core. Said cover layer itself has on its external surface at least a first layer of fibrous material and has on its internal surface at least a second layer having a high melting point and a high combustion temperature and also being gas-tight, thereby preventing hot gases from passing through the layer and then burning the layer disposed therebelow.

Abstract: Hollow tubular members for the transmission of compressive, tensile, bending and torsional forces. The hollow member is made of fibre-reinforced plastics and comprises a tubular central portion and tapered conical end portions which form an integral whole with the central portion. A synthetic organic polymer is used as the reinforcing fibre.

Abstract: A lightweight construction core having a cellular structure, whereby the cells are enclosed by walls formed from impregnated paper-like material. The core has the form of a plate with cavities or spaces provided therein and is inserted into a component in such a way that the loading of the component acts as pressure upon the edges of the walls. When the lightweight construction core is used as a support core for a ski, more particularly for a long-distance ski, the core is covered by a covering layer on its sliding surface and on its upper surface. These covering layers may be adhered to lateral edges of the ski. The cells are formed by sandwiching or layering corrugated strips with support layers disposed therebetween, said support layers also being formed from layers to which the corrugated strips are adhered.

Abstract: A process of manufacturing a ski, particularly a laminated ski, which is composed of a plurality of components, and a ski manufactured by that process. In the process, the components of the ski are placed into a mold, which is adapted to be evacuated, and the mold is subsequently evacuated. A liquid binder, such as a liquid resin, is supplied to the mold during or after its evacuation. Air is sucked from the mold at one end of the longitudinal extent of the ski. The liquid binder is supplied to the mold at the other end of the longitudinal extent of the ski. In the finished ski a strip of solidified binder extends in at least one vertical or horizontal longitudinal plane of the ski, preferably in a central longitudinal plane of the ski, over at least part of the length and preferably over at least one half of the length of the ski.

Abstract: A system for supplying air to the interior of a shoe, particularly of a skiing boot for Alpine skiing is disclosed. The shoe or skiing boot comprises a shell and a gaiter, which is pivoted to the shell and pivotally movable in the longitudinal direction of the shoe. An air-handling device is mounted on the shell of the shoe and is connected to actuating means. The latter is also connected to the gaiter and during a forward and rearward pivotal movement of the gaiter move up and down to impart a pumping motion to the air-handling device so that air is pumped into the interior of the shoe. The air inlet is preferably disposed near the sole of the shoe.

Abstract: In a process of forming a profiled tread surface on a ski, a cutting tool is moved in steps of defined length in the longitudinal direction of the tread surface to be profiled and in steps of defined length transversely to said longitudinal direction. The cutting tool thus moved is used to form said tread surface with individual recesses, which partly overlap and are defined by sawtooth-shaped step ramps extending in said longitudinal direction. Adjacent transverse rows of said recesses overlap preferably by one-half of the length of each of said transverse steps.

Abstract: In a process of forming a profiled tread surface on a ski, a cutting tool is moved in steps of defined length in the longitudinal direction of the tread surface to be profiled and in steps of defined length transversely to said longitudinal direction. The cutting tool thus moved is used to form said tread surface with individual recesses, which partly overlap and are defined by sawtooth-shaped step ramps extending in said longitudinal direction. Adjacent transverse rows of said recesses overlap preferably by one-half of the length of each of said transverse steps.

Abstract: In a process of forming a profiled tread surface on a ski, a cutting tool is moved in steps of defined length in the longitudinal direction of the tread surface to be profiled and in steps of defined length transversely to said longitudinal direction. The cutting tool thus moved is used to form said tread surface with individual recesses, which partly overlap and are defined by sawtooth-shaped step ramps extending in said longitudinal direction. Adjacent transverse rows of said recesses overlap preferably by one-half of the length of each of said transverse steps.

Abstract: This invention relates to means for suppressing vibration in implements which serve to strike the ball and comprise a striking surface, a hoop which encloses the striking surface, and a handle. The invention relates particularly to tennis rackets and aims at suppressing the high-frequency vibration which is excited by the impact of the ball.In these striking implements, at least two longitudinal or transverse strings or at least one longitudinal string and at least one transverse string are mechanically coupled to each other by a vibration absorber.