Abstract:
A binding for a sliding board includes a stationary part connected to the board, forming a rotating body, and provided with a retaining and fastening arrangement; and a moving part provided with an attachment and retaining arrangement for attaching and retaining same in relation to the retaining and fastening arrangement of the stationary part. The retaining and fastening arrangement of the stationary part are formed by peripherally arranged flanges separated from the board, as well as including portions with no flanges. The moving part includes a boot securing arrangement including a cavity, which can also rotate, provided with internal ridges, the cavity having a diameter approximately equal to that of the rotating body of the stationary part together with the flanges, such that the connection between the stationary part and the moving part takes the form of a bayonet coupling obtained by insertion and rotation.

Description:
[0001]    This invention consists of a binding for a sliding board, for example for sliding on snow or the boards known as “snowboards”, which allow an easy and quick release of the anchoring mechanism located in the boot through a rotation and bayonet clamping mechanism. 
         [0002]    The sport of snowboarding or sliding through the snow on board, requires that both feet of the user are placed immobile on the board, so that the user can perform the required maneuvers while being able to maintain the balance on the board. 
         [0003]    The immobile placement is performed in many different ways. A common way is to have a body embracing the boot as a sandal so that the athlete must sit down in order to place each boot on the corresponding binding; one example is shown in ES 2 357 338. 
         [0004]    ES 2 261 095 describes a release system for ski boots and snowboard bindings, comprising an electronic device with an emitter and a receiver electronic device which performs the opening of the binding. This requires that both the board and the emitter, possibly holding the handle of a ski pole, comprises an energy source, which increases the weight and complexity of the binding. 
         [0005]    ES 2 341 825 describes a magnetic binding device of a boot to a ski board or snowboard. This binding may be unstable when usual skiing or snowboarding impacts occur, for example in jumps, being difficult its separation. 
         [0006]    WO 96/23557 describes an adjustable binding device in angular position. 
         [0007]    ES 2 188 403 describes a binding for snowboards comprising plates with protuberances susceptible of binding to several components installed in the boots&#39; base with binding elements by longitudinal displacement. 
         [0008]    ES 2 330 600 describes an autonomous pneumatic control system securing boots to snowboards or skis by vacuum suction, which requires that the athlete carries a suction pump. 
       DESCRIPTION OF THE INVENTION 
       [0009]    As pointed out previously, this invention is a bond system of a boot to a sliding board by means of an assembly of binding elements (herein referred to as “binding”); snowboard comprises a plurality of perforations on which there is a fixed part with retaining and locking means; consisting of a revolution body, usually a solid disc with many longitudinally elongated holes, allowing longitudinal adjustments of the position of such disc on the holes and; according to the particular embodiment, several holes run along the board allowing different base sites of the disc. Over the mentioned disc there is a second disc also comprising a set of elongated holes forming circumference arches, with which an angular positional adjustment of the disc is possible. The invention also comprises outer projections separated from the board, and arranged at regular or irregular intervals along the disc periphery. The second disc, once placed over the first one, is fixed to the board by screws running through the corresponding holes of the said discs and those of the board, which are properly positioned before finally being tightened. It is expected that one of the discs includes a projection and the other one a recess in accordance for an appropriate assembly. 
         [0010]    For the fastening of the boot to the board, a support has been designed, which may be susceptible to the binding of the boot or be part thereof, comprising a circular disc according to the second hole. Such gap comprises inner projections of no longer than the distance between the outer projections of the second disc; such inner projections will be located in a lower position, so that when the circular gap of the support is introduced on the second disc, the projections are displayed downwardly. 
         [0011]    At least the second disc or the circular hole is provided with an elastic retaining mean, so that when the insertion and corresponding rotation, bayonet-type, occurs, the binding will be firm, until manual action takes place on such elastic mean by means of, for example, a button or a lever laterally located. Thus a quick and easy binding is achieved, and a quick release if required, allowing a very comfortable and versatile use. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]    To illustrate the following explanation, we enclose herein, three sheets of drawings in which the essence of the invention is represented in three figures in which: 
           [0013]      FIG. 1  shows an explosion view of the assembly of elements forming the binding device of the invention; 
           [0014]      FIG. 2  shows a perspective view of the binding device of  FIG. 1  mounted on the board; 
           [0015]      FIG. 3  shows a view of the binding of  FIGS. 1 and 2 , in which a first assembly of elements is mounted on the board; 
           [0016]      FIG. 4  shows a view of a section of the board with the mounted binding; 
           [0017]      FIG. 5  shows a view of an angled section on the section of  FIG. 4 ; 
           [0018]      FIG. 6  shows a plan view of the binding mounted on the table; 
           [0019]      FIG. 7  shows a perspective view of a detail of a release component of the binding. 
           [0020]      FIG. 8  shows a perspective view of a mounted binding device according with a compact embodiment. 
           [0021]      FIG. 9  shows a lateral view of the binding device of  FIG. 8 . 
           [0022]      FIG. 10  shows a lateral view of the external binding arc, usually joined to the boot support. 
           [0023]      FIG. 11  shows a lateral transparent view of the clamping bolt of the binding elements. 
           [0024]      FIG. 12  shows an upper transparent view of the clamping bolt of  FIG. 11 . 
           [0025]      FIG. 13  shows a perspective view of the clamping bolt before its mounting in the binding device. 
       
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
       [0026]    As noted above, this invention consists in a binding for sliding boards, particularly designed for snowboards ( 1 ). The board has sets of holes ( 11 ) arranged linearly, which allow the binding of the invention to be arranged in different positions along the board ( 1 ). Over these holes ( 11 ) in each of the sets, there is a first disc ( 2 ) with holes linearly grooved ( 22 ). Thus, the said first disc ( 2 ) can be placed in at least three different positions (according to the representation of  FIG. 1 ), on the holes of one end, on the holes of the other end or on the set of the central holes; according to the needs, there will be more or less number of holes ( 11 ) in the board ( 1 ). For an acute adjustment, grooved holes ( 22 ) are arranged so that, once the corresponding screws ( 35 ) are mounted, the disc can still move to either side until it is fully satisfactory for the user. Preferably, the first disc ( 2 ) comprises a peripheral ledge ( 21 ). 
         [0027]    On top of the first disc ( 2 ) there is a second disc ( 3 ). This disc has a set of grooved holes ( 32 ) in the form of an arc of circumference, which are topped at the top by a recess ( 33 ) of the same general form, but with greater width than the grooved holes ( 32 ). These grooved holes ( 32 ) are pierced by the screws ( 35 ) with the head clamped in the recess ( 33 ). Given the form of arc, it is possible to provide the second disc ( 3 ) with the desired rotation position for an adequate comfort of the user, which will subsequently determine the corresponding anchoring position. 
         [0028]    Once the first ( 2 ) and the second discs ( 3 ) are placed in the correct position, proceed to tighten the screws and leave the fixed part of the binding in a permanent position of the board. 
         [0029]    The second disc ( 3 ) includes side flanges ( 31 ) on the outer contour of the disc, which, at least in one side, is topped by a beveled portion ( 34 ), and also includes other portions of the said contour without flanges. 
         [0030]    The binding further comprises a mobile part ( 4 ) which is attached or by any suitable means to the user&#39;s boot. Such mobile portion ( 4 ) comprises a support surface ( 41 ) and side walls ( 42 ). For example, straps for holding the boot may be installed in these side walls. The mobile part ( 4 ) comprises a hollow area ( 46 ) with an inner diameter which is substantially equal to the outer diameter of the second disc comprising the side flanges ( 31 ). 
         [0031]    In some portions of the hollow area ( 46 ), there are inner projections ( 43 ) comprising an upper surface ( 44 ) and a beveled stopper ( 45 ). The mobile part ( 4 ) is placed on the second disc ( 3 ) with a certain rotation angle, so that the inner projections ( 43 ) pierce the portions without flanges of such second disc ( 3 ). By rotating the mobile portion in the right direction, the projections ( 43 ) can remain below the side flanges ( 31 ), until the beveled stopper reaches the corresponding beveled portion of the second disc ( 3 ), in locking position of the fixed and mobile parts. 
         [0032]    The retainer in a locking position takes place by a latch ( 6 ) acting against the action of at least one spring ( 9 ). The latch ( 6 ) runs through an inner hole ( 52 ) formed in one component ( 5 ), in turn arranged in a hole ( 47 ) transversely practiced in the wall of the hollow area ( 46 ); such piece ( 5 ) comprises outer binding flanges ( 51 ) with perforations ( 53 ) for the passage of screws ( 72 ). 
         [0033]    The latch ( 6 ) consists of an essentially prismatic component, with projections ( 62 ) on its outer face which in turn comprise cross-holes ( 61 ). In the holes ( 61 ) of such projections ( 62 ), a first transverse shaft of one component in double “T” ( 86 ). The latch ( 6 ), the component ( 5 ) and the springs ( 9 ) are externally supported by a shield ( 7 ) provided with holes ( 71 ) through which it is fastened by screws ( 72 ). The shield comprises a central window ( 74 ) allowing the passage of beam ( 863 ) connecting transverse shafts ( 861 ,  862 ) of the component in double “T” ( 86 ). Respect to the said component in double “T” ( 86 ), the first transverse shaft ( 862 ), normally shorter than the second transverse shaft ( 863 ) is fastened to the holes ( 61 ) of the projections ( 62 ) and pushed by springs ( 9 ) towards the inside of the hollow region ( 46 ) of the mobile part ( 4 ), the crossbar ( 863 ) runs through the window ( 74 ) of the shield ( 7 ) and the second transverse shaft ( 861 ), normally longer than the first one, is secured in the holes ( 84 ) of an outer lever ( 8 ). The outer lever ( 8 ) comprises a pulsation area ( 82 ) and a driving area ( 81 ), possibly provided with a trim. The driving area comprises holes ( 84 ) in which the second transverse shaft ( 861 ) is fixed to the component in double “T” ( 86 ). Moreover, the lever ( 8 ) also comprises second holes ( 83 ) in which a shaft ( 831 ) is placed, which in turn is fastened on supportive supports ( 73 ) to the shield ( 7 ) and externally arranged, provided with the corresponding holes for a secure binding of such shaft ( 831 ). 
         [0034]    Thus, in a rest position, the latch ( 6 ) partially emerges in the hollow area ( 46 ) of the mobile part ( 4 ) so when such latch ( 6 ) is in the use position to prevent the reverse rotation for the extraction of the mobile part relative to the fixed part, for it prevents displacement with respect to the side flanges ( 31 ) forcing its introduction placing the mobile part ( 4 ) on the fixed part during rotation the latch ( 6 ) is pushed by the beveled portion ( 34 ) of the flanges ( 31 ), forcing its introduction in the inner hole ( 52 ) of the component ( 5 ), which will slide along such flange until the end, when the latch will return to the rest position. 
         [0035]    To release, simply retract the latch ( 6 ) by oppression the pulsation area ( 82 ) of the lever ( 8 ), so that the component in double “T” ( 86 ) will be stretched and so will the latch ( 6 ), thereby allowing rotation of the mobile part ( 4 ) and its removal in the correct position. 
         [0036]    In a simplified embodiment, the discs ( 2 ,  3 ) are only one piece, forming a solid assembly and reducing the manufacturing costs. 
         [0037]    According with an optimized embodiment, a locking bar or locking latch ( 10 ) is used for the binding. Said locking latch ( 10 ) is formed by two parts, an upper part ( 115 ) and a lower part ( 116 ), between which is defined a gap ( 12 ) through which a latch ( 1251 ) slides; the upper part ( 115 ) supports a shaft ( 104 ) supporting a first specie lever, with a push actuator ( 182 ) at one end and a countersink hole with a drive shaft ( 120 ) of the latch ( 1251 ), with a return spring ( 172 ) installed inside the hole. At least one part of the locking latch ( 10 ) is inserted in a location cutout ( 49 ) formed in the disc that forms the mobile part ( 4 ) in such a way that can be easily mounted independently of the other elements. 
         [0038]    In summary, a bayonet-type lock with a retaining device when in use position, and releasing means of the retention mean in the locking and releasing phases of the binding.