Abstract:
An extendable nose bicycle seat allowing a rider to adjust seat nose length while riding for optimal comfort, performance, safety and style. Unlike any other bicycle seat, the adjustable seat nose embraces nose, cut-out and nose-less technology allowing the rider to leverage the strengths of each for the appropriate riding conditions. A sliding track system allows the rider to adjust the seat nose length for nose-less riding (zero contact with soft tissue areas) or alternatively to engage the nose for performance riding, like aggressive turning, racing or trail riding. Riders can adjust the nose while riding to pre-set lengths by pushing or pulling the nose in or out to activate pressure sensitive click and lock system.

Description:
RELATED APPLICATION 
     The present application claims the priority date of provisional patent application No. 62/046,575 filed Sep. 5, 2014. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates generally to bicycles and specifically to bicycle seats or saddles. 
     BACKGROUND OF THE INVENTION 
     Since the introduction of the bicycle, riders at all levels have struggled to varying degrees with bicycle seat/saddle comfort. There is growing scientific evidence traditional bicycle saddles create pressure points which place pressure on the prostate, irritate the urethra and can damage the pudendal arteries and dorsal nerves. 
     Although bicycle seat technology has evolved, the traditional bicycle seat continues to offer the same basic function and form. In recent years, nose-less, cut-out and hybrid split nose saddles have evolved to help reduce pressure and pain but typically require performance and design aesthetic trade-offs that have limited broad market acceptance. 
     No-nose (nose-less) design provides a sit bone area only with essentially zero contact on the genitals. Key focus on weight distribution with a larger sit area to accommodate range of body sizes. Typically an aesthetic and performance trade off to fully eliminate pressure issue. 
     Cut out and hybrid split nose seats designs offer a nose and focus on reducing pressure. Seats in this segment view the nose as a critical feature for optimal fit, safety and performance. Design seeks to maintain aesthetics and alignment with traditional nose design to maintain acceptance and credibility and views cut out cavity or split nose design as sufficient to relieve pressure at levels that are acceptable for most advanced bikers. 
     Problems associated with nose-less, cut-out and hybrid split nose designs include the following:
         Concerns for lost control and performance without a nose to “lock you into the saddle” i.e. hard turning, off-road trail riding etc.;   Nose-less seats can cause “pelvic float” and inner thigh chafing—perception nose required to stabilize and prevent shifting on seat;   Nose-less design requires a more “up-right” stance and therefore not practical for racing stance or low grip handle bar positions;   Hybrid versions with a cut out and or a split nose system offers relief and most closely resembles a traditional seat—although less pressure, design still forces direct pressure on genitals while in sitting position; and   For many, nose-less and hybrid designs are viewed as awkward looking. Long standing paradigm with “serious” bikers that tie to “norms and etiquette”—if you want to fit in, get a serious bike and stay clear of non-standard gear.       

     SUMMARY OF THE INVENTION 
     An extendable nose bicycle seat comprising of a nose-less seat shell having a central opening; a slidable nose slidable inside said opening; a sit-pad frame to support said seat; a sliding means to extend and retract said slidable nose through said shell; and a plurality of seat-rails attached to said sit-pad frame to connect said seat to a seat-post, whereby the length of the slidable nose is changed while riding, extending the length of the slidable nose for aggressive turning, racing or trail riding and reducing the length of the slidable nose when cruising for comfort and zero contact with pudendal arteries, prostate and tailbone of a rider. 
     The present invention is a bike saddle that allows users to adjust seat nose configurations for optimal comfort, performance, safety and style. Unlike any other bike saddle, the saddle embraces both the nose and the nose less technology allowing the rider to leverage the strengths of each for the appropriate riding conditions. 
     The present invention provides two styles to accommodate racing/competitive riders wanting a more firm, narrow and sleek design and a second design offering a softer wider sit bone area for casual or heavier set riders. 
     The adjustable seat nose design offers an adaptive bicycle seat that allows the rider to adjust seat nose configurations for optimal comfort, performance, safety and style. Unlike any other bicycle seat, the adjustable seat nose embraces nose, cut-out, sit pad elevation and nose-less technology allowing the rider to leverage the strengths of each for the appropriate riding conditions so riders can select two different settings for the bike saddle. 
     Cruise setting in the present invention has no nose riding for optimal comfort and zero contact with pudendal arteries, prostate and tailbone. Ideal for cruising, touring or taking a break from performance mode without having to pause or stop your ride. 
     The performance setting in the present invention has the nose pulled out to engage the nose for performance riding, i.e. aggressive turning, racing or trail riding. The cut-away slot and ⅜″ seat pad elevation minimizes soft tissue pressure. Riders also have the option of partially engaging the nose by selecting one of three nose lengths that are auto-set by the pushing nose in or out to activate the pressure sensitive click and lock system. 
     A key feature of the adjustable seat nose is a sliding track system that allows the rider to adjust the seat nose length for various riding conditions (racing, hard turning or casual/cruise riding). The nose can be adjusted and locked into one of three positions (1) Fully engaged—maximum length (2) Mid-range—half length (3) Fully recessed—all the way inside the seat (cruise setting). 
     The adjustable seat nose design provides a level of customization that allows the rider to adapt to varying riding conditions—riders can enjoy the benefits of nose, nose-less, cut-away and elevated sit pack technology without having to sacrifice performance, style, comfort or safety. 
     The adjustable seat nose design is the only bike seat that addresses the trade-off between performance, style, comfort and safety in problem with existing seat technology. The adjustable seat nose design is beneficial for all frequent riders. 
     Current seat technology focuses on either nose-less solutions or nose seats that reduce pressure—to date no evidence of a solution that embraces multiple technologies. 
     The aforementioned objects of the present invention are attained by a bicycle seat/saddle that allows users to adjust seat nose configurations during a ride for optimal comfort, performance, safety and style. Other objects, advantages and novel features of the present invention will become readily apparent from the following drawings and detailed description of preferred embodiments. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments herein will hereinafter be described in conjunction with the appended drawings provided to illustrate and not to limit the scope of the claims, wherein like designations denote like elements, and in which: 
         FIG. 1  shows a perspective view of a bike saddle of the present invention in a performance setting; 
         FIG. 2  shows a perspective view of a bike saddle of the present invention from the bottom in a performance setting; 
         FIG. 3  shows a perspective view of a bike saddle of the present invention in a cruise setting; 
         FIG. 4  shows a perspective view of a bike saddle of the present invention from the bottom in a cruise setting; 
         FIG. 5  shows a perspective view of a bike saddle of the present invention from the bottom with a separate nose and a body; 
         FIG. 6  shows a perspective view of a bike saddle of the present invention from the top with a separate nose and a body; 
         FIG. 7  shows a sectional view of a bike saddle of the present invention through line a-a of  FIG. 2 ; 
         FIG. 8 ( a - c ) show perspective views of three bike saddle of the present invention from the top with three nose lengths; and 
         FIG. 9 ( a - d ) show perspective views of a bike saddle of the present invention having different mechanism for adjusting a nose length. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     As shown in  FIGS. 1-4 , a bicycle seat  10  is attached to the seat-post which is a tube that extends upwards from the bicycle frame to the seat. The height of the seat/saddle can be adjusted by the seat-post telescoping in and out of the seat tube. The shell of the bicycle seat creates the shape of the bicycle seat; most modern seats have a hard shell made from a molded piece of plastic, such as nylon or carbon fiber. The rails  16 - 17  of a bicycle seat  10  are the connection point to the rest of the bicycle. The rails  16 - 17  run along the underside of the seat  10  from the nose  11  to a distal end of the seat  13 . Most seats have two parallel rails  16 - 17  that the seat-post clamps to. 
       FIGS. 1-4  show a bicycle seat  10  with adjustable nose  11 . The bicycle seat  10  with an adjustable nose  11  offers an adaptive bicycle seat  10  that allows the rider to adjust the seat nose  11  configurations for optimal comfort, performance, safety and style. The adjustable nose  11  can be slidable inside a body of the bicycle seat  10  to adjust a length of the seat  10  and provides a nose-less seat ( FIG. 3 ). 
     As shown in  FIGS. 1-4 , a bicycle seat  10  comprises of an elongated body  12  having a distal  13  and proximal  14  ends, a nose  11  being slidable in a cut-out  15  of the body  12 , a sliding track system  20  that allows a rider to adjust the seat nose length for various riding conditions, and a pair of seat rails  16 - 17  to connect the bicycle seat  10  to the seat-post of a bicycle. 
     As shown in  FIG. 2 , a key feature of the adjustable seat nose  11  is a sliding track system  20  that allows the rider to adjust the seat nose length for various riding conditions. The seat nose  11  comprises an inner support frame system  30  that runs the full length of the nose  11  and includes a track insertion component  31 - 32  on the underside of the nose  11  that are received by a corresponding track system  20  built into a sit-pad frame  19 . The sit-pad frame  19  is fully integrated with the track system  20 . 
     As shown in  FIGS. 5-6 , the two grooved portions  31 - 32  are symmetrical and sized to receive the two rail portions  41 - 42  designed at the bottom of the seat nose  11 . The two rail portions  41 - 42  being designed form a distal end of the seat nose  11  to the proximal end of the seat nose  11 . The two rail portion further has a plurality of holes  43 - 45  to adjust the length of the seat nose on the two grooved portions  31 - 32 . A hole  51  designed on the track system  20  with the aid of a ball plunger  52  secures the seat nose  11  in a proper position to provide a different length for the seat nose  11 . Two plastic sleeves  51 ,  52  are placed inside two grooved portions  31 - 32 , for enhancing the movement of two rail portions  41 - 42  inside the two grooved portions  31 - 32 . 
     By having a ball plunger  52  in the design of the bicycle seat  10 , the rider can adjust the length of the nose seat  11  during a ride without having to stop the bicycle and without the need of having specific tools to adjust the nose seat  11 . 
     As shown in  FIG. 7 , the locking means in the bicycle seat  10  is a ball plunger  53 . The ball plunger  53  has a body case  531 , a plunger pin  532  protruding from the body case  531  equipped with a coil spring (not shown) inside the body case  531 , and a threaded wall  533 , wherein the plunger pin  532  is engaged with the apertures  43 - 45  in the rail portion  41  of the seat-nose  11 . 
     Preferably, the seat-pad frame  19  is formed by a forged aluminum material and the nose rails  41 - 42  are formed by extruded aluminum. 
     As shown in  FIGS. 3-4 , the cruise setting in the present invention does not have a nose during riding for optimal comfort and zero contact with pudendal arteries, prostate and tailbone. It is ideal for cruising, touring or taking a break from the performance mode without having to pause or stop when riding. 
     As shown in  FIGS. 1-2 , the performance setting in the present invention has the pull nose extended out so a rider is able to engage with it for performance riding and use it aggressive turning, racing or trail riding. A cut-away slot and ⅜″ seat pad elevation minimizes soft tissue pressure. 
     As shown in  FIG. 8 ( a - c ), riders also have the option of partially engaging the nose  11  by selecting one of three nose lengths that are auto-set by pushing the nose in or out to activate a pressure sensitive click and lock system. The nose  11  can be adjusted and locked into one of three positions: 
     (1) Fully engaged—maximum length,  FIG. 8( a ) ; 
     (2) Mid-range—half length,  FIG. 8( b ) ; and 
     (3) Fully recessed—all the way inside the seat (cruise setting),  FIG. 8( c ) . The rider pushes the nose  11  in or out to activate a pressure sensitive click and lock ball plunger system. 
     Another embodiment of the present invention is shown in  FIG. 9 ( a - d ), a bicycle seat  100  with adjustable nose  110  offers an adaptive bicycle seat that allows the rider to adjust seat nose  110  configurations for optimal comfort, performance, safety and style in another mechanism for adjusting the nose  110 . The bicycle seat  100  has a pivot design in which a nose  110  pivots up and out from seat center or flips up from under seat. The steps of adjusting a seat nose  110  are shown in  FIG. 9 ( a - d ). The pivot design may require the rider to get off bicycle to flip out and back in. 
     As shown again in  FIG. 9 ( a - d ), the pivotable nose bicycle seat  100  comprising of a nose-less seat shell  112  having a central opening  113 ; a pivotable nose  110  pivots inside said opening  113 ; a sit-pad frame  114  to support the seat  100 ; and a pivot point  115 , whereby the length of the pivotable nose  110  is changed by pivoting the pivotable nose  110  around the pivot point  115 , extending the length of the pivotable nose  110  for aggressive turning, racing or trail riding and reducing the length of the pivotable nose  110  when cruising for comfort and zero contact with pudendal arteries, prostate and tailbone of a rider. 
     The pivotable nose  110  pivots around pivot point  115  by helps of a pivoting rod. The pivoting rod comprises of two parts, a cylindrical portion and a rectangular portion. The pivotable nose  110  pivots around pivot point  115  by pulling the nose into the cylindrical portion and lock the nose in the rectangular portion. 
     The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention. 
     With respect to the above description, it is to be realized that the optimum relationships for the parts of the invention in regard to size, shape, form, materials, function and manner of operation, assembly and use are deemed readily apparent and obvious to those skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.