Abstract: A downhill ski having a ski body, which has a running surface on its under side, comprises on its upper side a support structure, on which a compressive force-absorbing upper chord element is mounted. The support structure is formed from an elongate flat component that is bent, preferably in an undulating manner, at intervals in alternating directions in each case at an angle to the running surface, about substantially parallel axes, which extend transversely to the longitudinal direction of the ski.

Abstract: In an alpine ski with an elongate ski body (1) forming a running surface (5), a mounting (7) for fastening a binding arranged on the upper face of the ski body (1) and rigidly connected therewith and attached to the ski body (1), extending in the longitudinal direction of the ski body (1) and receiving pressure forces, at least one upper cord element (11), the ends thereof being supported on the ski body (1), the upper cord element (11) being movably mounted relative to the ski body (1) between its ends and constructed such that under the impact of pressure forces it endeavours to deform elastically by flexural buckling and to carry out a deflection movement relative to the ski body (1). Support elements (17) are provided on the ski body (1) which counteract the deflection movement of the upper cord element (11) by exerting a counterforce.

Abstract: A downhill ski having a ski body (1), which has a running surface (8) on its under side, comprises on its upper side a support structure (6), on which a compressive force-absorbing upper chord element (10) is mounted. The support structure (6) is formed from an elongate flat component (7) that is bent, preferably in an undulating manner, at intervals in alternating directions in each case at an angle to the running surface (2), about substantially parallel axes, which extend transversely to the longitudinal direction of the ski.

Abstract: In an alpine ski with an elongate ski body (1) forming a running surface (5), a mounting (7) for fastening a binding arranged on the upper face of the ski body (1) and rigidly connected therewith and attached to the ski body (1), extending in the longitudinal direction of the ski body (1) and receiving pressure forces, at least one upper cord element (11), the ends thereof being supported on the ski body (1), the upper cord element (11) being movably mounted relative to the ski body (1) between its ends and constructed such that under the impact of pressure forces it endeavours to deform elastically by flexural buckling and to carry out a deflection movement relative to the ski body (1). Support elements (17) are provided on the ski body (1) which counteract the deflection movement of the upper cord element (11) by exerting a counterforce.

Abstract: In an alpine ski (1) comprising a body (2) which is composed of several elements and has on its underside a gliding surface (3) and on its upper side (7) a binding mounting area (8), and includes at least one upper chord element (4) subjected primarily to pressure loads and at least one lower chord element (5) subjected to tensile loads, the upper chord element (4) has in the middle region of the ski the shape of a flat, upwardly curved arc (6) extending in the longitudinal direction of the ski and spanning the lower chord element (5). The arc (6) of the upper chord element (4) is adapted to deflect in the direction of the lower chord element (5) in dependence upon the load exerted by the binding and is supported in the end regions of the ski in such a way that a displacement of the ends of the upper chord element (5) resulting from the deflection of the arc (6) increases the load carrying share of the end regions of the ski.

Abstract: In a binding support plate (1) having a base plate (2) on the side close to the top side of a ski (6) and securable thereto and a bearing plate (3) which is arranged between the base plate (2) and the binding or shoe sole, an intermediate plate (4) made of an elastomeric material is arranged between the base plate (2) and the bearing plate (3), being elastically deformable by the forces occurring between the ski (6) and the shoe during skiing. The bearing plate (3) is movable, by deformation of the intermediate plate (4), relative to the base plate (2) in a direction transverse to the longitudinal direction of the ski (6) and is adapted to take support on the base plate (2) by means of guide elements. The movement of the bearing plate (3) in a direction transverse to the longitudinal direction of the ski (6) is limited by the guide elements to a variable degree dependent on the elastic deformation of the intermediate plate (4).

Abstract: In a tennis racket with a frame (1) forming the striking head and a tensioning system consisting of crossed strings, where the strings (7) are secured by being passed through apertures in a frame component (2) and a component supported by the frame component (2), and where at least one securing device for at least one string (7) is designed in such a way that the string (7) can move on the inside of the frame in a direction perpendicular to the tension plane formed by the tensioning system, at least one dimensionally stable component (10) surrounding the movable string (7) like a sleeve can move to a limited extent in relation to the frame section (2) radially to the longitudinal axis of the string (7) and is supported on a body (12) which is arranged in a recess in the frame section (2) and is made of an elastomeric material which can be deformed by a movement of the component (10).

Abstract: In a ski with a body consisting of several elements that are arranged parallel and in layers and connected by adhesives and/or form-fit into each other it is proposed to arrange shaped elements (12, 13, 16) in layers that extend over most of the length of the ski body and consist of a supporting element (16) that is provided with longitudinal cavities (20, 21) in which the longitudinal ribs provided for this purpose on two anti-shock elements (12, 13) are inserted. Anti-shock layers (14, 15) of an elastomer material are inserted between the elements (12, 13, 16). The ski is characterized by good shock absorption properties and even running.