Abstract:
A skate blade angle controlling device fastened to a lower face of a fixing plate having a rectangular, integral projection part. A fastening bolt is screw-fastened through the fixing plate to a fastening nut onto a connection flat provided on an upper face of the skate blade. A pivotally moving part has an open upper face closed by a lower part of the projection part and has one side pivotally mounted on the projection part on a hinge axle. A concave flute of a concave shape is formed in a lower part of the projection part positioned away from the hinge axle. A controlling plate having a fastening hole is inserted into the concave flute. A controlling screw is fastened in the fastening hole from the top to control the pivoting angle of the pivotally moving part by an upward and downward movement of the controlling plate.

Description:
This is a continuation of Application No. 09/640,781 filed Aug. 18, 2000 and now abandoned. The disclosure of the prior application(s) is hereby incorporated by reference herein in its entirety. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a skate blade angle controlling device for skates used on a short track, and more particularly, to a skate blade angle controlling device for skates used on a short track, which is capable of enhancing a contacting force between the skate blade and an ice surface and preventing a user from sliding as a result of centrifugal force, to thereby gain maximum safety for cornering by the user, by optionally controlling at any time an angle of a skate blade fastened to a lower surface of a fixing plate so as to match a physical condition of the user so by maintaining a maximum vertical state of the skate blade against the ice surface even under a state where the user leans his body at a maximum angle. 
     2. Description of the Prior Art 
     In general, a short track is a scoring game requiring skating at a most rapid speed on a frozen ice track within an indoor narrow track. Due to a characteristic of the narrow track, an inclined angle of a cornering portion on the ice track is relatively severe. Thus in the construction of skates for use on a short track, the skate blade is not positioned at a center of a skate shoe but is formed in an outward eccentric state comparatively to conventional skates, so as to safely skate on a cornering portion of the track having a severe inclined angle, particularly at a rapid skating speed. 
     In such conventional skates for a short track, a fixing plate made of metal is combined with respective front and back surfaces of a skate bottom, and is provided with a fastening bolt directed to a lower direction on one side of the fixing plate. This fastening bolt extends through a bracket combined with a holder holding a skate blade and, in such a state, the fastening bolt is fastened and fixed by a nut. 
     In such construction for skates used on a short track, the skate blade is positioned to maintain the eccentric state towards the outward direction of the skate, namely, an outer side of the track under rapid skating, instead of a position at a center of the skate, so that the user may rapidly skate on a corner of the track with maintenance of rapid speed in a safe manner and with maximum maintenance of safety in an inner side thereof while cornering. 
     However, in such skates for the short track, the skate blade in a lower part of the skate is provided at the outward eccentric state instead of the central position of the skate, to perform safe cornering without sliding dangerously outwardly even in a rapid skating state when skating on a corner of the track. It is thus constructed that the skate blade is slanted according to an inclined angle so that the upper body of the user inclines to the inside direction of the track when cornering, since the skate blade maintains its vertical state against the skate shoe, that is, a contacting force between the skate blade and the ice surface is lessened and a sliding action to the outer direction occurs often by centrifugal force. At this time, the user/player reduces his skating speed for safety while cornering, which makes it difficult obtain a good score in a game. In the event the user rapidly skates without speed reduction while cornering to obtain a good score in the game, he/she may be injured in an accident owing to his/her sliding and falling-down outwardly since the contacting force between the skate blade and the frozen surface drops. 
     To overcome such shortcoming the Korean Opening Utility Model Publication Opening No. 98-26579 had been provided. 
     In this construction, a combination part slanted downwardly in a side direction thereof is formed on the lower face of the fixing plate affixed to a lower face of the skate shoe so the skate blade is slanted against the fixing plate, to thereby maintain a vertical state of the skate blade on the frozen surface through an inclined angle of the combination part, to maintain the contacting force of the skate blade with the frozen surface and to prevent a maximum sliding action outwardly for safe cornering even when the player inclines towards the cornering direction while cornering. 
     In such conventional construction, however, the combination part having a given inclined angle is provided in one body with the fixing plate causing an inconvenience to the user since the inclined angle of the combination part does not comply with the physical condition of the user. 
     Describing in detail, the physical condition or individual abilities of the players are different respectively. In other words, the players rapidly skate in a different state with respect to skating speed and angle while cornering. At this time, the inclined angle of the combination part is maintained at a constant state, which rather causes cornering under an unstable state. 
     That is to say, in a case of the player who has a t physical condition appropriate to the inclined angle of the combination part, he/she can stably skate while cornering on the track and obtain a good score. But in case that the physical condition is larger or smaller than the inclined angle, there is an inconvenience in its construction in that the inclined angle of the combination part is formed differently respectively according to the players individual physical conditions and abilities because the inclined angle of the combination part is not matched with these characteristics of the players. In cases where the players&#39; individual abilities are improved and they attempt to skate at more rapid speed while cornering, they should incline their bodies to a lower position in the cornering direction. At this time, when the player&#39;s body inclines more than an angle of the inclined angle of the combination part, the skate blade does not stand vertically and quickly moves to some lying state to bring about a sliding action outwardly by centrifugal force. Accordingly, the contacting force between the skate blade and the frozen surface drops. To overcome such shortcomings, new skate shoes have a different inclined angle of the combination part and should be purchased every time the ability of the player improves, which causes the player an economic burden. 
     SUMMARY OF THE INVENTION 
     It is, therefore, a primary object of the present invention to provide a skate blade angle controlling device for skates used on a short track, in which an inclined angle of skate blade can be freely controlled according to the physical condition and ability of a player who puts on his/her skates, thereby the player can rapidly skate on a cornering track in a safe manner by controlling the inclined angle in conformity with improvement of the player&#39;s ability, with one pair of skates, to enable to obtain a good score in the game. And the player can reduce his economic burden in that the skates based on the inclined angle of the skate blade should be openly exchanged and purchased. 
    
    
     BRIEF DESCRIPTION OF THE ATTACHED DRAWINGS 
     The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. 
     In the drawings: 
     FIG. 1 is an exploded perspective view showing the construction in accordance with the present invention; 
     FIG. 2 illustrates an enlarged cross-sectional view showing an inventive combination state; 
     FIG. 3 a  depicts an enlarged cross-sectional view as an inventive use state view providing a state of rapidly skating on a straight-line portion of a track; 
     FIG. 3 b  represents an enlarged cross-sectional view as an inventive use state view providing a state of rapidly skating on a cornering portion of the track; 
     FIG. 4 presents a partially enlarged exploded perspective view showing another embodiment in accordance with the present invention; 
     FIG. 5 is an enlarged cross-sectional view showing a combined state of FIG. 4; and 
     FIG. 6 provides a partially enlarged cross-sectional view showing another embodiment of the invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. 
     FIG. 1 is an exploded perspective view showing the construction in accordance with the present invention, and FIG. 2 is a partially enlarged cross-sectional view showing an inventive combination state. Skate  100  for a short track is made of a leather material and has a tightening string on a front side thereof. On respective front and back sides of a lower face of skate shoe  200 , a fixing plate  300  made of metal material is closely fixed by a fastening bolt, and on a center part of a lower face of the fixing plate  300  a projection part  310  having a rectangular shape is formed in one piece with the fixing plate  300  to project downwardly. 
     Herewith, the projection part  310  has a graduation  330  on one side face thereof so as to clarify its incline when an angle of the skate blade to be described below is controlled and to control the exact angle. 
     The projection part  310  is provided with a fastening bolt  320  which extends from an upper part of the fixing plate through a connection flat  520  and then is fastened and fixed by a fastening nut  320   a  in its extension state, and the projection part  310  also has a concave flute  340  having a rectangular concave shape formed toward its inner side on one side thereof. 
     The concave flute  340  is preferably formed by a concave depth same as a height of the fixing plate, and is also provided with a controlling plate  350  having a fastening hole  350   a  into which a controlling screw  360  pierces, the fastening hole  350   a  being formed on a center thereof. 
     In a state that a lower part of the projection part  310  is covered from the lower direction with a pivotally moving part  400 , one side of the pivotally moving part  400  is combined with the projection part  310  and a hinge axle  410  extending along a hinge axis, and the pivotally moving part  400  optionally and pivotally moves centering on the hinge axis. 
     The pivotally moving part  400  has a rectangular shape whose upper face is opened so as to cover the projection part, and has a long hole  420  formed on a bottom face thereof so as to be freely movable centering on the hinge axis under a state that the fastening bolt  320  extends through it, and also has a penetration hole  430  into which a controlling screw  360  penetrates through and fastens to the controlling plate  350  inserted into the concave flute  340 . 
     At this time, in the penetration hole  430 , an end part of the controlling screw  360  is exposed so as to be turned through the penetration hole  430  from the a lower part of the pivotally moving part  400 . 
     On front and back upper parts of a skate blade  500 , a holder  510  is fixed thereto, and in such a fixing state of a lower part of the holder, its upper part is bent in a horizontal shape and is provided with the connection flat  520  whose end part is opened to form an opening flute  530  so as to be fastened by insertion of the fastening bolt  320  and the fastening nut  320   a.    
     Operations of the invention with such construction are described as follows. 
     First, from an upper part of the controlling plate  350  the controlling screw  360  is fastened through the fastening hole  350   a  so the controlling plate  350  is inserted inside the concave flute  340  of the projection part  310 , and in this state, a lower part of the projection part  310  is covered by the pivotally moving part  400 . Then, the fastening bolt  320  penetrates through the long hole  420 , and under a state that the controlling screw  360  projects through a lower part of the controlling plate  350 , is positioned into the penetration hole  430 . The pivotally moving part  400  covers the projection part  310 , and then its one side has an insertion of the hinge axle  410  to obtain a combination between the pivotally moving part  400  and the projection part  310 . Therefore the pivotally moving part  400  can freely move while centering on the hinge axle  410 . 
     Then, the fixing plate  300  described above is strongly fixed to the front and back sides of the skate shoe  200  lower face. In this state, the fastening bolt  320  projecting to a lower part of the pivotally moving part  400  is inserted into the opening flute  530  and is securely fastened by using the fastening nut  320 a from a lower part of the connection flat  520 , wherein the opening flute  530  is formed opened from an end part of the connection flat  520  combined with the holder  510  provided on front and back sides of the skate blade  500  upper part. 
     At this time, for skates used for the short track, the skate blade  500  is not positioned on a centering portion of the skate shoe  200  but is positioned eccentrically outwardly with the track as its starting point. That is, a position of the skate blade  500  is controlled so as to comply with the player&#39;s own ability by using the opening flute  530  formed by opening the end part of the connection flat  520 , the opening flute  530  having an insertion of the fastening bolt  320 , and then under such control state, its assembly is gained by securely tightening the fastening nut  320   a.    
     When the assembly is completed as the above, as shown in FIG. 2, it is maintained in a close contact state of the controlling plate  350  within the concave flute  340 . Thus, a vertical state of the skate blade  500  is maintained. 
     In this state, in case that an angle of the skate blade  500  should be controlled to match it with a player&#39;s own ability, the fastening nut  320   a  is first loosened so that the pivotally moving part  400  can move while centering on the hinge axle  410  and then the controlling screw  360  positioned in the penetration hole  430  provided in the pivotally moving part  400  is turned. Therefore, a downward position of the controlling plate  350  inserted into the inside of the concave flute  340  can be realized according to a pivotally moving range of the controlling screw  360 . 
     Namely, when the controlling screw is turned under a state that the controlling screw  360  is screw-fastened to the fastening hole  350   a  of the controlling plate  350  and its end face is contacted with an upper face of the concave flute  340 , the position of the controlling screw rotates without displacement. According to that, the controlling plate  350  screw-fastened by the controlling screw and the fastening hole is escaped to the outside from the inside of the concave flute  340 . 
     Like this, when the controlling plate  350  inserted into the inside of the concave flute  340  is escaped downwardly by the controlling screw  360 , one end side part of the pivotally moving part  400  face-contacted with the controlling plate, namely, another end part of the hinge axle  410 , is downwardly moved centering on the hinge axis, to thereby obtain its inclined state. 
     When one end of the pivotally moving part  400  is slanted centering on the hinge axis as the above, its slanted angle can be precisely controlled by the graduation  330  appearing one face of the projection part  310 . 
     That is, when the controlling plate  350  maintains a state completely inserted into the inside of the concave flute  340  so the pivotally moving part  400  covering an outer circumference of the projection part  310  maintains a horizontal state, the graduation  330  hidden by the pivotally moving part  400  is not shown. Then, when the controlling plate  350  is moved downwardly from the concave flute  340  by a control of the controlling bolt  360  so the pivotally moving part  400  maintaining its horizontal state moves centering on the hinge axle  410 , the graduation  330  appearing on one face of the projection part  310  is visible to the naked eye according to a pivotally moving angle of the pivotally moving part, whereby the pivotally moving angle of the pivotally moving part  400  can be controlled by the graduation  330 . 
     When the angle control is completed as the above, the fastening nut  320   a  loosened is tightened so that the skate blade  500  is fastened and fixed securely, maintaining the inclined angle, as shown in FIGS. 3 a  and  3   b.    
     Under such state that an angle of the skate blade  500  is controlled, when the player stands with his skates on or rapidly skates on a straight line of the ice track, in this case the player is in a vertically standing state as shown in FIG. 3 a . In other words, the skate shoe  200  maintains its horizontal state so the skate blade  500  having an inclined angle in the lower part of the skate shoe rapidly skates on the frozen surface under a maintenance state of the inclined angle controlled toward an inside direction of the track. While cornering, the player leans his upper body to an inside of the track at a maximum, and according to that, the skate shoe  200  is slanted to the inclined direction of the body as shown in FIG. 3 b , thus the skate blade  500  inclines together with that. At this time, the skate blade  500  is based on the inclined state to the track direction, instead of maintaining the vertical state against the skate shoe  200 , thus the skate blade  500  can stand vertically, meeting the body&#39;s inclined angle. 
     Therefore, the body maintains the inclined state to the inside direction of the track. Meanwhile, the skate blade  500  rapidly skates on the corner portion of the track under a maintenance of a vertically standing state without a sliding action from the ice surface by an increased contacting force with the frozen surface. Accordingly, the player can safely skate at a rapid speed on a corner portion of the track under its free control. 
     In accordance with another preferred embodiment of the invention, as shown in FIGS. 4 and 5, a concave part  600  is constructed having a concave shape formed into an inner side thereof forming an outer edge on the projection part  310  with a rectangular shape projecting as a unitary construction with a lower part of the fixing plate  300 . The concave part  600  is combined with the projection part  310  by a one side insertion of a hinge axle  710  inserted into the inside of the concave part  600 . It is also constructed with an angle controlling plate  700  movable while centering on the hinge axis. 
     This angle controlling plate  700  has a formation of a long hole  720  into which the fastening bolt  320  can be penetrated and a formation of a fastening hole  730  to which the controlling screw  360  can be fastened, and is further provided with a graduation  740  appearing on one side face of the angle controlling plate  700 . 
     In a still another preferred embodiment of the invention, as shown in FIG. 6, the fastening hole  310   a  is constructed for screw-fastening from a lower part thereof. The fastening bolt  320  is formed in the fixing plate  300  then the fastening bolt  320  is fastened to the fastening hole  310   a  through the opening flute  530  from a lower part of the connection flat  520  fixed to the skate blade  500 . 
     As aforementioned, in accordance with the present invention, a player himself can displace an angle between the skate shoe and the skate blade according to his/her physical condition and his/her individual skill extent by manipulating a controlling bolt. Thus, the skate blade maintains its vertical state against the frozen surface, that is, the skate shoe is slanted downwards in a cornering direction. Thus, there is no need to incline the body of the player by force when cornering. And also, even though the player&#39;s body is inclined in the cornering direction while cornering, the skate blade can rapidly skate, maintaining a vertical state against the frozen surface. Accordingly, there is no danger of sliding outwardly by centrifugal force even while rapidly skating on a corner portion of the track since the contacting force between the skate blade and the frozen surface does not have any displacement. Thus, not only accidental injury can be prevented, but also a good score in a game can be obtained by maintaining a rapid speed while safely cornering. 
     In addition, an economic burden of exchanging new skates and its inconvenience of the players can be eliminated using the invention which are caused every time the angle needs to be displaced, by voluntarily controlling the angle through a use of a controlling bolt, when a change of the skate shoes and the skate blade is required according to a skill extent of the players. 
     Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.