Motorized-surfboard-based water motorcycle

Abstract

A water motorcycle includes a motorized surfboard unit having a deck portion and driven by a drive motor, and a motorbike frame unit detachably mounted on the deck portion by means of retaining hook units. The motorbike frame unit includes a seat module provided with a rider's seat, and a handle module provided with an upright handlebar frame. The surfboard unit can be used independently for surfing or combined with the motorbike frame unit to function as a water motorcycle.

What is claimed is: 
     
         1 . A motorized-surfboard-based water motorcycle comprising
 a motorized surfboard unit including
 a surfboard hull module which has nose and tail ends opposite to each other in a longitudinal direction, a deck portion which is disposed between said nose and tail ends and which has a deck surface, and that has front and rear regions proximate to said nose and tail ends, respectively, and a juncture region interposed between said front and rear regions, and 
 a drive motor disposed below said deck surface for propelling said surfboard hull module; 
   a motorbike frame unit including
 a seat module which extends in the longitudinal direction to terminate at forward and rearward marginal regions which are disposed adjacent to said juncture region and said rear region, respectively, in an assembled position, and 
 a handle module including
 a handlebar erecting frame extending in the longitudinal direction to terminate at a rear end which is connected with said forward marginal region, and a front end which is releasably secured to a securing site on said front region proximate to said nose end so as to permit said handlebar erecting frame to be displaced to the assembled position, and 
 a handlebar frame having a connected end which is connected to said handlebar erecting frame, and a handlebar end which is configured to be disposed in an upright position when said handlebar erecting frame is displaced to the assembled position; 
 
   a front retaining hook unit configured to bring said front end into a position-locking engagement with said securing site; and   a rear retaining hook unit configured to bring said rearward marginal region into a position-locking engagement with said tail end.   
     
     
         2 . The motorized-surfboard-based water motorcycle as claimed in  claim 1 , wherein:
 said motorized surfboard unit includes an electrically conductive cable which is electrically coupled with said drive motor to control said surfboard hull module, and which extends from said front region to be connected to a handgrip;   said handlebar end being configured to be positioned near said handgrip when in the upright position.   
     
     
         3 . The motorized-surfboard-based water motorcycle as claimed in  claim 1 , wherein said rear end of said handlebar erecting frame is pivotally connected with said forward marginal region of said seat module about a hinge axis oriented in a transverse direction relative to the longitudinal direction. 
     
     
         4 . The motorized-surfboard-based water motorcycle as claimed in  claim 3 , wherein said seat module has a saddle shell interposed between said forward and rearward marginal regions, and including a seat member, and left and right straddle segments which rest on said rear region, and which are configured to permit said seat member to be spaced apart from said rear region in an upright direction that is transverse to the longitudinal and transverse directions. 
     
     
         5 . The motorized-surfboard-based water motorcycle as claimed in  claim 4 , wherein:
 said rear retaining hook unit is configured to downwardly hook on said tail end;   said front retaining hook unit including a positioning ring which is disposed at said securing site, a lever which is pivotally mounted on said front end about a fulcrum axis that is parallel to the hinge axis and which has a retained end and a hooking end configured such that, when said retained end is pressed downward manually, said hooking end is forced upward to hook on said hooking ring, and a retaining member which is disposed on said front end, and which is configured such that, immediately after said retained end is pressed downward, said retaining member is snap-engaged with said retained end to thereby bring said front end into a position-locking engagement with said securing site.   
     
     
         6 . The motorized-surfboard-based water motorcycle as claimed in  claim 4 , further comprising:
 a left retaining hook unit configured to bring said left straddle segment into a position-locking engagement with a left peripheral site on said juncture region; and   a right retaining hook unit configured to bring said right straddle segment into a position-locking engagement with a right peripheral site on said juncture region.   
     
     
         7 . The motorized-surfboard-based water motorcycle as claimed in  claim 6 , wherein each of said left and right retaining hook units includes a protrusion disposed on said juncture region, a pressing member disposed on a corresponding one of said left and right straddle segments to be press-engaged with said juncture region when said seat module is displaced to the assembled position, and an hooking latch pivotally mounted on said pressing member and configured to upwardly hook on said protrusion when said left and right straddle segments are press-engaged with said juncture region. 
     
     
         8 . The motorized-surfboard-based water motorcycle as claimed in  claim 3 , wherein said seat module has a seat mounting member which is interposed between said forward and rearward marginal regions, and which have left and right saddle halves extending away from each other in the transverse direction to terminate at left and right anchoring regions, respectively. 
     
     
         9 . The motorized-surfboard-based water motorcycle as claimed in  claim 8 , wherein said rear retaining hook unit is configured to downwardly hook on said tail end;
 said front retaining hook unit including a securing stem which is disposed at said securing site, a retaining member which is pivotally mounted to said front end and which has a hooking end configured to upwardly hook on said securing stem, and a tightening lever which is pivotally mounted to said front end to bring said hooking end of said retaining member into a tightening engagement with said securing stem.   
     
     
         10 . The motorized-surfboard-based water motorcycle as claimed in  claim 8 , further comprising:
 a left retaining hook unit configured to bring said left anchoring region into a position-locking engagement with a left peripheral site on said juncture region; and   a right retaining hook unit configured to bring said right anchoring region into a position-locking engagement with a right peripheral site on said juncture region.   
     
     
         11 . The motorized-surfboard-based water motorcycle as claimed in  claim 10 , wherein each of said left and right retaining hook units includes a securing stem which is disposed on said juncture region, a retaining member which is pivotally mounted to a corresponding one of said left and right anchoring regions and which has a hooking end configured to upwardly hook on said securing stem, and a tightening lever which is pivotally mounted to the corresponding one of said left and right anchoring regions to bring said hooking end of said retaining member into a tightening engagement with said securing stem.