Abstract:
A skating training aid consisting of a base plate that slides on the ice—or rolls on any other less slippery surface—and is made of a series of telescoping adjustable rods and the said device can also accept weight plates to adjust the level of strength required to push it while practicing skating movements.

Description:
This application claims priority based on provisional application 60/360,714 filed Mar. 4, 2002. 

   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The invention relates generally to skating equipment but more particularly to equipment used in teaching or training skaters. 
   2. Background of the Invention 
   There are a number of devices that have been developed over the years to help people, young and old, to learn how to skate, usually ice skating, but in recent years patent applications have expanded their claims to cover the increasing poplularity of inline skating. For example U.S. Pat. No. 3,235,254 by Robson and U.S. Pat. No. 5,120,286 by Twohig disclose devices aimed at beginners, there are of course many more such devices which do not apply to the specific function of the invention herein described. In a related field, ice hockey requires for players to have a quick start, strong accelerations and fast ongoing speed. To achieve that, it is important for the ankles to rotate a certain way and the legs to bend and to push at a certain angle and the center of gravity of the body to be at a certain point which can only be achieved if the torso is angled in a certain way. The optimal parameters for skating are known to those who study the sport but teaching and training players to adopt and maintain that optimal posture is the key to quick and efficient training and, as of now, there are no tools that can adequately do that. 
   Some inventions aspire at teaching optimal skating for hockey such as U.S. Pat. No. 4,915,373 by Walker which is a static exercise machine for skaters and is not meant for use on an ice surface but rather as part of a training program in a gym or such place. U.S. Pat. No. 5,911,650 also discloses a static training machine for use in a gym or such place and U.S. Pat. No. 6,090,015 is mostly concerned with practicing turns for skaters and skiers with the machine base being static and the users being able to rotate around it by leaning on a rotating boom arm. Although strength training in general and skate simulation machine such as U.S. Pat. No. 5,911,650 are useful in the training process, nothing beats actual training on the actual playing field with the actual footwear and equipment to really train the muscle groups and train the neuro-muscular system of an athlete. 
   Althought some of the prior art appears to have common elements such as sternum support and adjustable vertical posts, the nature and operation of the device herein disclosed is substantially different from the prior art of record. 
   SUMMARY OF THE INVENTION 
   The present invention discloses a skating training device for use on an ice surface such as an ice rink when training for ice skating and can also be adapted for use on any flat hard surface when used for training for roller skates of all kinds. 
   It is a first object of this invention to provide for a simple to use skating training device aimed at improving the skating style of a skater. 
   It is a second object of this invention to provide a skating training device aimed at strenghtening and conditioning the muscles involved in skating. 
   It is a final object of this invention to provide a skating training device that can be adjusted easily to configure exactly to any skater no matter the length of their arms, legs, torso and no matter their physical strength. 
   In order to do that, the device consists of a base plate that slides on the ice—or rolls on any other less slippery surface—and is made of a series of telescoping adjustable rods and the said device can also accept weight plates to adjust the level of strength required to push it while practicing skating movements. A user happlies his sternum against a sternum support and can also hold handle bars and skates against the resistance provided by the weighted down device. Provisions are also made to have two sternum supports so that two users facing each other each apply their sternums against their sternum support thus pushing one against the other. 
   The foregoing and other objects, features, and advantages of this invention will become more readily apparent from the following detailed description of a preferred embodiment with reference to the accompanying drawings, wherein the preferred embodiment of the invention is shown and described, by way of examples. As will be realized, the invention is capable of other and different embodiments, and its several details are capable of modifications in various obvious respects, all without departing from the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive. 

   
     BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENT 
       FIG. 1  Is an isometric view of the device favoring one side. 
       FIG. 2  Is a close up isometric view showing the pin insertion. 
       FIG. 3  Is an isometric view of the device with an alternate locking system. 
       FIG. 4  Is an isometric view of the device with a double sternum support arrangement. 
       FIG. 5  Is an isometric view of the device with an angled sternum support. 
       FIG. 6  Is an isometric view as in  5  but with one of the sternum support turned sideways. 
       FIG. 7  Is an isometric view of the base plate adapted for the needs of off ice use. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIG. 1  A skating training aid  1  is comprised of a base plate  2  which lays flat on a surface, has a base post  3  which emerges perpendicularity therefrom and around which is slidably attached a main post  4 . Moving upward on that main post  4 , we come across an arc module  25  slidably attached to the main post  4 , which will be described later. From that main post  4 , continuing upward, we come across a weight plate support rod  6  onto which weight plates  7  can be slid and said weight plate support rod  6  is perpendicular to the main post  4  onto which it is slidably attached. Further up, we come across a telescoping transverse arm  8  which is also set perpendicular to the main post  4  and to which it is also slidably attached to. From the transverse arm  8  going to its distal end, we come across a handle bar post  9  set perpendicular to the transverse arm  8 , pointing upward and slidably attached to it. From the handle bar post  9  we move upward until we come across the handle bar  10  which is also slidably engaged therefrom. Back to the transverse arm  8 , we continue toward the distal end where the telescoping part of the said telescoping transverse arm  8  terminates with a sternum support  11  which is rotationally engaged to the said telescoping transverse arm  8 . Optionally, an angle indicator  12  is fixedly attached to the sternum support  11  in order to indicate its angle of inclination from the vertical. The above recited parts which are described as slidably engaged onto another part are also described as &lt;&lt;slidably attached elements&gt;&gt; throughout this description when referred to generally. 
   The arc module  25  is comprised of an arc part  25 , a connector part  26  and an arc rod. The connector part  26  slidably engages the main post  4  and the connector part  26  has the arc rod  27  fixedly attached to it and extending perpendicularly therefrom. The arc part  25  has two extremities and at each extremity, guiding rods  15  are releasably inserted. Slidingly engaging each of the guiding rods  15  is a cursor  22  which acts as a marker to aid in instructing footwork, along with indicias  21 . The arc part  25  can be adjusted proximally or distally from the connector part  26  along the length of the arc rod  27 . 
   A telescoping wheel support rod  23  is also fixedly attached to the connector part  26  at its proximal end and at its distal end is an axle  13  extending perpendicularly therefrom. The axle  13  has two opposite extremities and each extremity has one wheel  14 . The wheels  14  are used for transporting the skating training aid  1  by simply tilting it to engage the wheels  14  to the ground. Being telescopic, the telescoping wheel support rod  23  can set the wheels  14  at different distances from the connector part  26 . The base plate  2  is specially coated to reduce stickiness and damage to an ice surface. The guiding rods  15  help a user with the proper motion of the legs and can be removed for a more advanced user. Weight plates  7  can be inserted directly atop the base plate by removing the arc module  5  and weight plates  7  can also be placed, of course, on the support rod  6  for a maximum workout. The angle indicator  12  monitors the exact angle for future reference as do indicias  21  all along the main post  4 , the telescoping transverse arm  8 , the handle bar post  9  and the guiding rods  15 . With these indicias  21  many users can use the skating training aid  1  on any given day and use it again some other day by reconfiguring it to their specifications based on these indicias  21  and they are relied upon to gauge progress as the posture improves and different adjustements force the user into the optimal body posture. 
     FIG. 2  As can be appreciated, most of the discrete parts are slidably attached to one another and can be locked into position by either a system of holes and pins, which is quite familiar in the art of sports and fitness training equipment or, as in the remaining figures, it can use a system of lock that does not require holes which will be discussed in the next figure. The pin and holes system operates with a pin  16  comprised of a head  17  and a shaft  18 . The shaft is inserted through a series of aligned holes  19  of two slidably attached elements. This allows for the various elements to adapt to the measurements of a user in particular. In order to secure the pin  16  in place, the head  17  is magnetized so that it will “stick” to the place it is inserted to (assuming of course that the device is made of magnetically compatible material such as steel). Of course the pins  16  as described herein could be substituted by pull-pin or spring loaded pin as commonly used in this type of training equipment. Since the telescoping and slidably attached elements need to have a little play between them in order to slide smoothly and with ease, this has the drawback of causing the slidably attached elements to wiggle. In order to eliminate this, at each location this occurs, there is a knob  20  that, with a small rotation, will tighten the two slidalby attached elements and resolve the wiggling problem. The quarter turn system described in the copending application allows for the locking down of a given position and resolves the wiggling problem in a single quarter turn (quarter turn being a figure of speech to generally describe the action and should not be taken literally). 
     FIG. 3  This embodiment features a no holes  19  look and has a more elaborate angle indicator  12  the remaining parts are essentially the same. It should be noted, however that the telescoping transverse arm  8  as found in  FIG. 1  has become a &lt;&lt;T&gt;&gt; telescoping arm  36 , but this &lt;&lt;T&gt;&gt; telescoping arm  36  can be found on the embodiement of  FIG. 1  as well as the telescoping arm  8  can be substituted in this figure. The &lt;&lt;T&gt;&gt; telescoping arm  36  allows for the sternum support  11  to be set closer to the main post  4  since the handles  10  are situated on the other side of that very same main post  4 . The no holes  19  look is described in a copending application by this inventor, essentially, it consists of locking handles  24  requiring a quarter turn in order to loosen or lock the discrete slidably attached elements. It should be noted that in this figure, there is more than one weight support rod  6  which increases the amount of possible weights  7  that can be put on skating training aid  1 . Also, the telescoping wheel support rod  23  is fixedly engaged to the main post  4  at its proximal end and at its distal end is the axle  13  extending perpendicularly therefrom. 
     FIG. 4A  variation of the skating training aid  1  has a &lt;&lt;Y&gt;&gt; shape fitting  30  which slidably engages the main post  3  in lieu of the main post  4  and each arm of the &lt;&lt;Y&gt;&gt; receives a telescoping transverse arm  8  and each telescoping transverse arm  8  receives a sternum support  11 . This way, two opposing people can work against each other. 
     FIG. 5  Another variation provides the skating training aid  1  with an angled attachment  40  which allows for training one leg at a time for a quick start in which case the left foot would point forward towards the front of the machine while the right foot would be at a right angle to the left foot and provide the motion. The torso of the user is set at an angle of about 30 degrees in relation to the right foot, which is the correct angle for a stride. After having trained one leg, the angle attachment  40  can be removed, flipped over and reinserted to exercize the left leg this time. 
     FIG. 6  The sternum support  11  can be turned sideways which allows the angle to be varied horizontally and provide some of the same benefit as the angled attachment  40  of  FIG. 5  but for practicing skating stride one leg at a time as oppposed to quick starts. 
     FIG. 7  In an alternate embodiment, a different base plate  2  has a base post  3  and a plurality of wheels  14  to allow it to roll off non slippery surface to train on roller skates.