Abstract:
An ice skate comprises a platform in horizontal plane and side brackets secured to underside of horizontal platform in vertical plane opposing each other and straddling extension arms pivotally arranged in vertical plane and contained on non rotational center axle in horizontal plane and opposing each other. Extension arm is having a torsion spring encircling spacer ring rotationally fixated on bearing sleeve thereof seated onto center axle. Torsion spring is of multi coil type made of spring steel or other suitable wire having an extension along the horizontal plane at one extremity of coil with the like at the opposite extremity thereof and confined in through hole of extension arm and side plate respectively. Distal end of extension arm has an axle fixated in non-rotational fashion with a follower rotationally fixated in a vertical plane. Torsion spring is confined and arranged to allow extension arm to pivot on center axis within a certain range and quadrant of a full circle to be in tandem whereby opposing pair of extension arm is fixated to each other and sharing follower attached to axle shaft at distal end of pair of extension arm. Follower is engaged with horizontally elongated hole at front-end portion and rear end portion respectively of skating blade. Opposing side brackets are having extender bracket with axle in horizontal plane having follower engaging with vertically elongated hole on centerline of skating blade.

Description:
RELATED APPLICATIONS  
       [0001]     This application claims the priority date of prior filed applications having Ser. No. 60/666,275 and filing date of Mar. 29, 2005 and entitled: Ice skate with flexible and shock absorbent blade mount. 
     
    
     INCORPORATION BY REFERENCE  
       [0002]     Applicant(s) herein incorporate by reference, any and all U.S. patents and U.S. patent applications cited or referred to in this application.  
       BACKGROUND OF THE INVENTION  
       [0003]     1. Field of Invention  
         [0004]     This invention relates generally to ice skates in particular to an ice skate including the arrangement of elements to provide a shock absorbent suspension mechanism to enable the ice skate to be used on irregular riding surfaces and for acrobatic type of riding mode including but not limited to jumping and the like by an ice skating passenger.  
         [0005]     2. Background  
         [0006]     A common ice skate comprises a top platform with the sole of a boot secured to it for the foot of ice skater. Under side of top platform is having support brackets affixed along longitudinal centerline thereof having a skating blade rigidly connected vertical plane. The skates of the type as aforesaid are well known in the field of ice skates and exist in many configurations and sizes. The type of suspension for skating blade does not include an elastic element for shock absorbency to cushion leg of skater during skating action especially when jumping. A great number of ice skaters are motivated to perform long jumping or other like features which requires a great deal of physical effort by the ice skater to get airborne per se and consequentially requiring appropriate leg action to provide for a cushioned landing to prevent injury to the bracing feet and legs. The rigid type suspension of skating blade requires a considerable skill of the ice skater to perform acrobatics type of ice skating and then at best with a great effort of practice and physical effort.  
         [0007]     3. Description of Related Art  
         [0008]     U.S. Pat. No. 5,931,480 describes a foot gear suspension device with movable swing arm at front end with a nonrotating axis mounted to distal ends of said swing arm having free rotating follower bearing guided in an elongated hole of skating blade along the horizontal plane. Opposite end of said swing arm is pivotally attached to frame work of said foot gear having a secondary pivot pin in line with said pivotal attachment connecting to a linear elastic element such as an air, hydraulic, or spring cushioned piston or the like. The length of distance between said pivot pins determines the degree of leverage and such articulated movement in the vertical plane of said swing arm. Rear end of said suspension device is having another swing arm suspended from framework in an identical arrangement. Said swing distal end is pivotally attached to skating blade. During skating the weight of skater applied to said foot board in combination with skating action the like of pushing the skate against the skating surface effects said swing arm to deflect down wardly in an articulated movement and upon recoil of elastic element assist the ice skater towards enhanced acceleration in forward motion. Arrangement of said swing arm may afford a shock absorbency to leg of skater during skating activity especially when running against protrusions in surface or during maneuvering around other like obstacles. The type of fixation of said swing arm provides sufficient clearance to said framework of said footgear during articulated movement of said swing arm. Hence forth it appears this invention teaches optimization of movement in vertical plane of said swing arm having said skating blade therefore providing sufficient capability for skater to perform jumping, negotiating obstacles and the like. Said invention among others does not teach how the elasticity of said swing arm is translating a proportional equal or nearly equal force of rebound through out the complete range of pivotal and articulated travel of said swing arm. Specifically this invention does not explain sufficiently the relationship of the type of elastic element the like of air, hydraulic, spring and other referenced herein and how these elements are connected to and interfacing with said primary and said secondary pivotal arrangement of said swing arm. The present arrangement as shown and as specified in this invention may not make provisions for optimized utilization of vertical movement of said swing arm and may distribute a disproportional force of rebound in relation to the position of said swing arm and along total travel range thereof. In retrospect the skating may be very limited resulting in diminished effectiveness for jumping, acrobatics, negotiation of obstacles, surface irregularities and the like. Aforesaid is manifested by a progressive change in elasticity or rebound force therefore requiring for the ice skater to compensate with proper leg action, balancing and physical strength. Therefore it may be highly likely that a diminished rebound force is assisting the ice skater wherein greater force may be required and in retrospect a greater force may be delivered when a smaller force for rebound may be sufficient. Limitations in the ability of ice skater to use rebound assist for acceleration in forward motion and performing jumping, acrobatics or negotiating skating surface obstacles or the like may greatly increase the need of ice skaters skill level and physical strength and may render a marginal skating stability at best. Said invention also fails to teach proper fixation of said swing arm arrangement along the horizontal center axis of said pivot arrangement. Because of distal length from said pivot arrangement to said pivotal arrangement and follower respectively of said swing arm lateral forces or thrust applied to said swing arm by ice skater are of considerable force requiring a positive fixation to said swing arm along longitudinal center axis of skating blade and frame work respectively the like of wear plates straddling said swing arm in contiguous mode rather depending solely on said swing arm pivotal arrangement. Aforesaid may contribute to a greatly diminished ice skating stability and safety which more so with ice skaters is of significant importance to the ice skaters safety when negotiating sharp turns, steeply banked corner riding, quick stops and the like. It is of great attraction to an ice skater and of great incentive to acquire the skills of ice skating and once acquired to perform acrobatic type ice-skating. Therefore an ice skater applies on a very frequent basis significant thrust onto said foot gear suspension requiring a considerably contained ice skating blade suspension delivering superior r grasp of ice skating blade upon the skating surface. The like arrangement of said swing arm of this invention in combination with the distal length between pivot axle and follower bearing axle respectively and pivot point of said swing arm excluding a means of proper containment of said swing arm along the horizontal axis the like of wear plate and other fixation elements may not contribute to a desired skating stability for the ice skater and may limit significantly skating flexibility and safety. For further consideration this invention fails to teach that said ice skating blade remains stationary along longitudinal axis. Said pivotal arrangement connecting rear portion of said skating blade with distal end of said swing arm will move skating blade in reciprocating fashion along the longitudinal axis during articulation of said swing arm. This may prove to be very undesirable to the ice skaters ability to negotiate jumps and save landings after completion of said jumps in a save and calculated manner. Afore said is of considerate consequence to the safety and skating ability for a skater due to the fact that that the forced longitudinal travel of said skating blade is caused by said pivotal suspension of said swing arm to rear portion of ice skating blade and therefore may not provide the ice skater a permanent reference point of said skating blade when performing jumps and other like acrobatic ice skating. Furthermore said invention does not teach having said skating blade contained and arrested laterally along the horizontal axis. It is of great importance to a ice skater that said skating blade must not tilt along the vertical plane and be fully contained along the horizontal plane. Aforesaid is even of greater significance when ice skating is performed including jumping and acrobatics due to the fact that a save and sound landing is solely guaranteed only if said skating blade is rigidly connected to said chassis of said foot gear. Any slight movement, wobble or other instability of said skating blade during maneuvers the like of acrobatics, sharp cornering, and jumping may result in falls of the ice skater and may cause injuries not to mention additional disadvantages the like of poor skating control and diminished skating performance.  
         [0009]     My prior art search with abstracts described above teaches: several foot gear suspensions including a design, but fail to teach an in line skate with a fixated and unrestricted and shock absorbent skating wheel suspension describing an articulated movement to be of constant deflection force through the complete range of articulated movement without restrictive features to limit articulated movement. The present invention fulfills these needs and provides further related advantages as described in the following summary.  
       SUMMARY OF INVENTION  
       [0010]     The present invention teaches certain benefits in construction and use, which give rise to the objectives described below.  
         [0011]     An in line roller skate comprises a platform in horizontal plane and side brackets secured to underside of horizontal platform in vertical plane opposing each other and straddling extension arms pivotally arranged in vertical plane and contained on non rotational center axle in horizontal plane and opposing each other in mirror image. Extension arm is having a torsion spring encircling spacer ring rotationally fixated on bearing sleeve thereof seated onto center axle. Torsion spring is of multi coil type made of spring steel or other suitable wire having an extension along the horizontal plane at one extremity of coil with the like at the opposite extremity thereof and confined in through hole of extension arm and side plate respectively. Distal end of extension arm has an axle fixated in non-rotational fashion with a follower rotationally fixated in a vertical plane. Torsion spring is confined and arranged to allow extension arm to rotate on center axis within a certain range and quadrant of a full circle of which rotation is in tandem whereby opposing pair of extension arm are fixated to each other and sharing follower attached to axle shaft at distal end of pair of extension arm. Follower is engaged with horizontally elongated hole in free rotating fashion at front-end portion and rear end portion respectively of skating blade. Opposing side brackets are having extender bracket with axle in horizontal plane having follower engaging in free rotating fashion with vertically elongated hole on centerline of skating blade.  
         [0012]     A primary objective of one embodiment of the present invention is to provide an apparatus and method of use of such apparatus that yields advantages not taught by the prior art.  
         [0013]     A still further objective is to assure that an embodiment of the invention is to provide a platform for fixating a boot for an ice skate to be used by an ice skater.  
         [0014]     A still further objective is to assure that an embodiment of the invention is to provide an extension arm pivotal fixated to frame for an ice skate.  
         [0015]     A still further objective is to assure that an embodiment of the invention is to provide an extension arm for an ice skate having an elastic suspension.  
         [0016]     A still further objective is to assure that an embodiment of the invention is capable of propelling an ice skate in forward motion with the assist of torsion spring elasticity and articulated travel of extension arm during use.  
         [0017]     A still further objective is to assure that an embodiment of the invention is capable to enable an ice skater to perform maneuvers with an ice skate the like of jumping and acrobatic skating taking advantage of elasticity of torsion spring.  
         [0018]     A still further objective is to assure that an embodiment of the invention is of a configuration that all elements of an ice skate are fully enclosed to the benefit of safe operation.  
         [0019]     A still further objective is that torsion spring is readily exchangeable to an alternate torsion spring to be of spring strength adapted to weight and desired skating comfort of an ice-skate.  
         [0020]     A still further objective is to assure that an embodiment of the invention is capable to provide various extension arm fixation with convenient adjusting and exchange of dependent elements of an ice skate.  
         [0021]     A still further objective is to assure that an embodiment of the invention is capable to provide ease of exchange of skating blade to an alternate blade having at least 2 skating wheels attached along longitudinal centerline thereof.  
         [0022]     A still further objective is to assure that an embodiment of the invention is conceived to present advantages over other inventions for an ice skate with one advantage providing the ability to readily change a preferred configuration to another preferred configuration done and completed by the end user of this invention.  
         [0023]     Other features and advantages of the embodiments of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, which illustrate, by the way of example, the principles of at least one of the possible embodiments of the invention.  
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0024]     The accompanying drawings illustrate at least one of the best mode embodiments of the present invention. In such drawings:  
         [0025]      FIG. 1  is a side elevation view of a preferred embodiment of present invention of an ice skate having a frame work with a boot attached to upper platform with side brackets fixated along underside of platform straddling 2 pair of swing arm and extender bracket with each having a follower free rotational engaging with skating blade.  
         [0026]      FIG. 2  is a plan view taken along lines  2 - 2  respectively in  FIG. 1 ;  
         [0027]      FIG. 3  is a cross sectional view taken along lines  3 - 3  respectively in  FIG. 1 ;  
         [0028]      FIG. 4  is a cross sectional view taken along lines  4 - 4  respectively in  FIG. 1 ;  
         [0029]      FIG. 5  is a cross sectional view taken along lines  5 - 5  respectively in  FIG. 1 ;  
         [0030]      FIG. 6  is an expanded and perspective and exploded view of a preferred embodiment of present invention;  
         [0031]      FIG. 7  is a side elevation view of a preferred embodiment of present invention of an in line roller skate having a frame work with a boot attached to upper platform with side brackets fixated along underside of platform straddling 2 pair of swing arm and extender bracket with each having a follower engaging with a blade having at least 2 skating wheels. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0032]     The above-described drawing figures illustrate the present invention in at least one of its preferred, best mode embodiments, which are further, defined in detail in the following description. Those having ordinary skill in the art may be able to make alterations and modifications in the present invention without departing from its spirit and scope. Therefore it must be understood that the illustrated embodiments have been set forth only for the purposes of example and that they should not be taken as limiting the invention as defined in the following.  
         [0033]      FIG. 1  shows an embodiment of this invention in front elevation view. Special designed skating boot  48  is firmly affixed to boot support plate  32 . Platform  30  in horizontal plane is having plurality of side bracket  15  affixed along underside in perpendicular plane lining up with edge of platform  30 . Plurality of axle  16  has opposite ends protruding through hole in side bracket  15  with plurality of lock washer  44  and plurality of nut  34  threaded onto plurality of end of axle  16  rendering thereof in affixed and nonrotating fashion. Plurality of pair of extension arm  12 A and  12 B respectively is pivotally and coaxially affixed and opposed to each other in mirror image on plurality of axle  16 . Plurality of extension arm  12 A and  12 B respectively is having axle  20  non-rotating affixed to distal end thereof with plurality of lock washer  44  and plurality of nut  34  threaded onto end of plurality of axle  20 . Extender bracket  35  is centrally affixed on side bracket  15  in vertical plane having axle  20  non-rotating affixed in horizontal plane with lock washer  44  and nut  34  threaded onto end of axle  20 . Skating blade  24  is having plurality of horizontal elongated hole  24 A at either end portion thereof and vertically elongated hole  24 B on center axis in vertical plane thereof respectively.  
         [0034]     Construction of an ice skate must demonstrate that skating blade is positioned as such to provide precise alignment along longitudinal center axis in relation to skate frame. Aforesaid feature is of great importance to the skating stability and safety of an ice skater. Aforesaid is achieved and very common with many ice skates commercially readily available. Afore said may not be readily demonstrated with an ice skate having an articulated and elastic skating blade suspension. An embodiment of this invention is demonstrating that an ice skate having an articulated and elastic skating blade suspension is providing skating stability and safety equivalent to present available ice skates without an elastic skating blade suspension in addition to having all the advantages of an ice skate with elastic wheel suspension.  FIG. 2  shows the bottom plan view of an embodiment of this invention. Special designed skating boot  48 —not shown—is firmly affixed to boot support plate  32 . Platform  30  in horizontal plane is having plurality of side bracket  15  affixed with plurality of counter sink screw  17  as referred to in  FIG. 6 . Plurality of extension arm  12 A and  12 B respectively is pivotally and coaxially affixed on plurality of axle  16  with extension arm  12 A opposing extension arm  12 B in mirror image. Plurality of extension arm  12 A and  12 B respectively is having axle  20  non-rotating affixed to distal end thereof with plurality of lock washer  44  and plurality of nut  34  threaded onto end of plurality of axle  20 . Plurality of axle  16  is protruding plurality of side bracket  15  having plurality of lock washer  44  and nut  34  threaded onto end thereof. Plurality of side bracket  15  is straddling plurality of extension arm  12 A and  12 B respectively with plurality of wear spacer ring  28  placed on plurality of axle  16  in rotating fashion with plurality of wear spacer ring  23  as referred to in  FIG. 3 . Plurality of wear spacer ring  28  is contiguous with face of plurality of side bracket  15  with opposite side thereof contiguous with face of plurality of spacer  46  as referred to on  FIG. 3 . Plurality of wear spacer ring  23  is contiguous with face of plurality of hub of extension arm  12 A and  12 B respectively. Plurality of extender bracket  33  is centrally affixed to plurality of side bracket  15  opposing each other in coaxial and mirror image fashion having axle  20  non rotating affixed protruding thereof with plurality of lock washer  44  and nut  34  threaded on opposite ends of axle  20 . Plurality of wear spacer  31  is affixed to opposing face of plurality of extension arm  12 A and  12 B respectively and contiguous with vertical face of skating blade  10 . Plurality of wear spacer  35  is affixed to opposing face of plurality of extender bracket  33  and contiguous with skating blade  10 . Plurality of follower  24  is non rotational affixed to plurality of axle  20  engaging in free rotational fashion with plurality of horizontal elongated hole  24 A and vertical elongated hole  24 B respectively as referred to in  FIG. 6 . As is shown on  FIG. 6  plurality of wear spacer  31  and plurality of wear spacer  35  respectively is affixed to plurality of extension arm  12 A and  12 B respectively with plurality of counter sink screw  39  and plurality of counter sink screw  37  respectively. It is note worthy to mention that aforesaid is demonstrating the effectiveness of said arrangement highlighting the confinement for plurality of extension arm  12 A and  12 B respectively along horizontal center axis in a pivotal fashion. Additionally it is easily recognizable that precise alignment for skating blade  24  along the longitudinal axis is contained as such that misalignment and random dislocation thereof during skating action is not possible.  
         [0035]      FIG. 3  shows an embodiment of this invention in cross sectional view. Special designed skating boot  48 —not shown—is firmly affixed to boot support plate  32 . Platform  30  in horizontal plane is having plurality of side bracket  15  affixed with plurality of counter sink screw  17 —not shown—along underside thereof in vertical plane. Extension arm  12 A and  12 B respectively is pivotally and coaxially opposing each other in mirror image affixed on plurality of axle  16  thereof is protruding through hole for plurality of side bracket  15  at one end and opposite end thereof with lock washer  44  and nut  34  rendering axle  16  affixed in a non rotating fashion. Plurality of side bracket  15  is straddling extension arm  12 A and  12 B respectively with plurality of wear spacer ring  28  placed on axle  16 . Plurality of wear spacer ring  28  is contiguous and slidably with face of plurality of side bracket  15  with opposite side thereof contiguous with face of plurality of spacer  46 . Plurality of wear spacer ring  23  is contiguous with face of plurality of hub of extension arm  12 A and  12 B respectively. Aforesaid is demonstrating the effectiveness of said arrangement highlighting the precise confinement of extension arm  12 A and  12 B respectively along horizontal center axis and axle  16  respectively. Aforesaid is high lighted due to the fact that the overall length of center portion of axle  16  is having a larger circumference than end portions thereof and to be of minutely greater linear length therefore exceeding the sum of cross sectional length for plurality of wear spacer ring  28  and wear spacer ring  23  and plurality of spacer  46  and extension arm  12 A and  12 B respectively. Therefore extension arm  12 A and  12 B respectively is contained along the horizontal axis of axle  16  and capable of rotational movement thereof during use of this invention. Specifically containment of extension arm  12 A and  12 B respectively is secured by the contiguous effect with face of plurality of wear spacer ring  28  with plurality of contiguous face of side bracket  15  and the opposite side with plurality of contiguous face of spacer  46  and respectively the opposite contiguous face of plurality of spacer  46  with the contiguous face of extension arm  12 A and  12 B respectively with opposite contiguous face thereof and contiguous face of wear spacer ring  23 . Plurality of sleeve bearing  25  is of free rotational fashion on axle  16  and is sweat fitted with extension arm  12 A and  12 B respectively rendering bearing sleeve  25  confined to non rotational fixation.  
         [0036]     Aforesaid is demonstrating the advantages of this invention over others highlighting precise alignment of skating blade  10  along the longitudinal center axis thereof additionally providing an effective means to prevent any misalignment thereof during use of this invention by an ice skater the like of sharp cornering quick stops and acrobatics. It is noteworthy to mention the importance of the precise confinement of extension arm  12 A and  12 B respectively by simultaneously providing proper rotational bearing support thereof on axle  16 . Plurality of torsion spring  14  is encircled by counter bore of extension arm  12 A and  12 B respectively and is aligned with plurality of spacer  46 . Torsion spring  14  is of a wire material of a given hardness, elasticity, cross section as well is having a certain number of coils therefore providing a certain spring force to be adequate for the desired torque strength required and to be transmitted to skating blade  10  via partial rotation of extension arm  12 A and  12 B respectively. Plurality of torsion spring  14  has an extension  52  along the horizontal plane at extremity of coil with the like at the opposite extremity of coil thereof respectively. Plurality of extension  52  engages with plurality of through hole  50  and plurality of through hole  62  respectively therefore confining extension arm  12 A and  12 B respectively to a given position or home position along the vertical plane depending on location of through hole  62 . It is contemplated that through hole  50  is of elongated configuration along the vertical center axis thereof. Aforesaid is to compensate for diametrical change of torsion spring  14  during deflection thereof. For an alternate method to compensate for diametrical change of torsion spring  14  an elongated hole  50  may be substituted with a dog point urging against end portion of coil for torsion spring  14 —not shown. As also referenced in  FIG. 6  plurality of extension arm  12 A and  12 B respectively is having plurality of through hole  62  to enable torsion spring  14  to be installed as described therefore locking plurality of extension arm  12 A and  12 B respectively in home position.  
         [0037]      FIG. 4  shows an embodiment of this invention in cross sectional view. Special designed skating boot  48 —not shown—is firmly affixed to boot support plate  32 . Platform  30  in horizontal plane is having plurality of side bracket  15  affixed along underside in vertical plane lining up with edge of platform  30 . Follower  24  is sweat seated on axle  20  contiguous with plurality of sleeve bearing  25  engaging with vertically elongated hole  24 B in skating blade  10  in free rotational fashion. Follower  24  is a cam follower roller bearing readily available in many different configurations. Axle  20  is protruding through hole for plurality of extender bracket  33  with plurality of lock washer  44  and nut  34  threaded on either end thereof. Plurality of sleeve bearing  25  is rotationally on axle  20  and non-rotationally affixed to plurality of extender bracket  33  protruding clearance through hole for plurality of wear spacer  35  and contiguous with follower  24 . It is note worthy to mention that vertical alignment and containment of skating blade  10  along horizontal plane is a function of plurality wear spacer  35  straddling skating blade  10  in a contiguous and slidably fashion. Specifically urging upon vertical face of skating blade  10  applied by opposing vertical face of plurality of wear spacer  35  must be predetermined not to cause a friction between contiguous surfaces such impairing lateral movement of skating blade  10  in vertical plane during use of the invention and not weak enough to cause wobbling and angular misalignment of skating blade  10 . Aforesaid may be easily accomplished by predetermination of cross sectional width of plurality of extender bracket  33  and plurality of wear spacer  35  in relation to length of follower  24  and length of plurality for bearing sleeve  25  which when combined must be slightly larger than the length of sum of cross section respectively. An alternate method may be with pre-fabricated shim of varying thickness that easily can be installed such as sandwiched between plurality of extender bracket  33  and plurality of wear spacer  35 .  
         [0038]      FIG. 5  shows an embodiment of this invention in cross sectional view with cut-away. Follower  24  is sweat seated on axle  20  contiguous with plurality of sleeve bearing  25  engaging in free rotational fashion with horizontally elongated hole  24 A in skating blade  10 . Follower  24  is a cam follower roller bearing readily available in many different configurations. Axle  20  is protruding through hole for plurality of distal end of extension arm  12 A and  12 B respectively with plurality of lock washer  44  and nut  34  threaded on either end of axle  20 . Plurality of sleeve bearing  25  is rotationally on axle  20  and non rotationally affixed to distal end of extension arm  12 A and  12 B respectively protruding clearance through hole of plurality of wear spacer  31  and contiguous and non slidably with follower  24 . It is note worthy to mention that vertical alignment and containment of skating blade  10  along horizontal plane is a function of plurality of wear spacer  31  straddling skating blade  10  in a contiguous and slidably fashion. Specifically urging upon vertical face of skating blade  10  applied by opposing vertical face of plurality of wear spacer  31  must be predetermined and not great enough to cause a friction between contiguous and slidably surfaces such impairing lateral movement of skating blade  10  in vertical plane during use of the invention and not weak enough to cause wobbling and angular misalignment of skating blade  10 . Aforesaid may be easily accomplished by predetermination of cross sectional width of plurality of distal end of extension arm  12 A and  12 B respectively and plurality of wear spacer  31  in relation to length of follower  24  and length of plurality for bearing sleeve  25  which when combined must be slightly larger than the length of sum of cross section aforesaid. An alternate method may be with pre-fabricated shim of varying thickness that easily can be installed such as sandwiched between extension arm  12 A and  12 B respectively and wear spacer  31 , not shown.  
         [0039]     As shown on  FIG. 6  which is an embodiment of present invention in perspective and expanded view the sequence of assembly for all elements high lights a clear and concise outline for plurality of dependent elements with appropriate labeling and as referenced in detailed specifications and shown in  FIG. 1-5 . Therefore it is contemplated and perceived a detailed specification is repetitious at best and for these reasons has been negated. It is also contemplated that plurality of element as labeled is clear and concise. Support plate  32  and platform  30  as referred to in  FIG. 1-4  has been negated.  
         [0040]      FIG. 7  shows an embodiment of this invention in front elevation view. As described in detailed specification and referenced in  FIG. 1-6  all elements are identical with exception to blade  10 A showing lower section thereof with attachment  50  having plurality of skating wheel  49  in co-linear fashion along longitudinal centerline of blade  10 A. Therefore it is contemplated and perceived a detailed specification and labeling of applicable elements is repetitious at best and for these reasons has been negated.  
         [0041]     The enablements described in detail above are considered novel over the prior art of record and are considered critical to the operation of at least one aspect of one best mode embodiment of the instant invention and to the achievement of the above described objectives. The words used in this specification to describe the instant embodiments are to be understood not only in the sense of their commonly defined meanings, but to include by special definition in this specification: structure, material or acts beyond the scope of the commonly defined meanings. Thus if an element can be understood in the context of this specifications as including more than one meaning, then its use must be understood as being generic to all possible meanings supported by the specifications and by the word or words describing the element.  
         [0042]     The definitions of the words or elements of the embodiments of the herein described invention and its related embodiments not described are, therefore, in this specifications to include not only the combination of elements which are literally set forth, but all equivalent structure, material or acts for performing substantially the same function in substantially the same way to obtain substantially the same result. In this sense it is therefore contemplated that an equivalent substitution of two or more elements may be made for any one of the elements in the invention and its various embodiments or that a single element may be substituted for two or more elements in a claim. Changes from the claimed subject matter as viewed by a person with ordinary skill in the art, not known or later devised, are expressly contemplated as being equivalents within the scope of the invention and its various embodiments. Therefore, obvious substitutions now or later known to one with ordinary skill in the art defined to be within the scope of the defined elements. The invention and its various embodiments are thus to be understood to include what is specifically illustrated and described above, what is conceptually equivalent, what can obviously substituted, and also what essentially incorporates the essential idea of the invention.  
         [0043]     While the invention has been described with reference to at least one preferred embodiment, it is to be clearly understood by those skilled in the art that the invention is not limited thereto. Rather, the scope of the invention is to be interpreted only in conjunction with the appended claims and it is made clear, here, that the inventor believes that the claimed subject matter is the invention.