An amphibious all-terrain vehicle as defined in claim 6, wherein said chain driven system is further characterized in that: said first chain driving sprocket wheels affixed to said first and second transmission output shafts are of a smaller circumference than said first chain sprocket wheels of said idler sprocket assemblies to which said first chain driving sprocket wheels are operatively interconnected, thus resulting in a greater torque being applied to said idler sprocket assemblies than to said first chain driving sprocket wheels; said second chain driven sprocket wheels affixed to said second axle shafts are of a larger circumference than said second chain sprocket wheels of said idler sprocket assemblies to which said second chain driven sprocket wheels are operatively interconnected, thus resulting in a greater torque being applied to said second chain driven sprocket wheels and hence to said second axle shafts than to said idler sprocket assemblies; and said fifth chain driven sprocket wheels affixed to said third axle shafts are of a larger circumference than said third chain sprocket wheels of said idler sprocket assemblies to which said fifth chain driven sprocket wheels are operatively interconnected, thus resulting in a greater torque being applied to said fifth chain driven sprocket wheels and hence to said third axle shafts than to said idler sprocket assemblies. A headlamp 21 may be situated in the body for night driving. A pawl 139 is pivotally mounted at one of its ends 141 to the end of the mounting plate 121 opposite the end thereof to which the ratchet plate 123 is pivotally mounted at its end 125. An amphibious all-terrain vehicle as defined in claim 1, further characterized in that: said hollow box beams are adapted to house a lubrieating oil to lubricate said chain drive system; said hollow box beams have a plurality of access openings, at least one of said openings being located adjacent to each axle shaft comprising said first and second series of drive axle shafts to provide access to said axle shafts; and a plurality of sealable cover plates each being adapted to close one of said plurality of access openings to prevent the egress of lubricating oil from said hollow box beam and ingress of contaminating material into said hollow box beam. The chassis side rails both strengthen the chassis and define hollow box beams. Learn More. Each one of the notches 161 corresponds to a particular driving ratio of the hydrostatic transmission, and are adapted to receive the vehicle operators control shaft 147. An amphibious'all-terrain vehicle as defined in claim 5, wherein said chain drive system comprises: at least one first chain driving sprocket wheel operatively affixed to said output shaft of said first trans mission to rotate with said output shaft; at least one first chain driving sprocket wheel operatively affixed to said output shaft of said second transmission torotate with said output shaft; at least one idler sprocket assembly having at least first, second and third chain sprocket wheels rotatably mounted on a first axle shaft ,of said first series of axle shafts; at least one idler sprocket assembly havingat least first, second and third chain sprocket wheels rotatably mounted on a first axle shaft of said second series of axle shafts; at least one first driving chain operatively interconnecting said first chain driving sprocket wheel mounted on said output shaft of said first transmissionto said first chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said first series of axle shafts to transmit a torque from said first transmission to said idler sprocket assembly; at least one first driving chain operatively interconnecting said first chain driving sprocket wheel mounted on said output shaft of said second transmission to said first chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said second series of axle shafts to transmit a torque from said second transmission to said idler sprocket assembly; at least one second chain driven sprocket wheel operatively affixed to a second axle shaft of said first series of axle shafts; at least one second chain driven sprocket wheel operatively affixed to a second axle shaft of said second series of axle shafts; at least one second driving chain operatively interconnecting said second chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said first series of axle shafts to said second chain driven sprocket wheel affixed to said second axle shaft of siad first series of axle shafts to transmit said torque from said idler sprocket assembly to said second chain driven sprocket and hence to said axle shaft; at least one second driving chain operatively interconnecting said second chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said second series of axle shafts to said second chain driven sprocket wheel affixed to said second axle shaft of said second series of axle shafts to transmit said torque from said idler sprocket assembly to said second chain driven sprocket and hence to said second axle shaft; at least one third chain driven sprocket wheel operatively affixed to said second axle shaft of said first series of axle shafts to rotate with said second axle shaft; at least one third chain driven sprocket wheel operatively affixed to said second axle shaft of said second series of axle shafts to rotate with said second axle shaft; at least one fourth chain driven sprocket wheel operatively affixed to said first axle shaft of said first series of axle shafts; at least one fourth chain driven sprocket wheel operatively affixed to said first axle shaft of said second series of axle shafts; at least one third driving chain operatively interconnecting said third chain sprocket wheel affixed to said second axle shaft of said first series of axle shafts to said fourth chain driven sprocket wheel affixed to said first axle shaft of said first series of axle shafts to transmit said torque from said second axle shaft to said fourth chain driven sprocket wheel and hence to said first axle shaft, said first axle shaft therefore constituting a jackshaft; at least one third driving chain operatively interconnecting said third chain sprocket wheel attached to said second axle shaft of saidsecond series of axle shafts to said fourth chain driven sprocket wheel attached to said first axle shaft of said second series of axle shafts to transmit said torque from said second axle shaft to said fourth chain driven sprocket wheel and hence to said first axle shaft, said first axle shaft therefore constituting a jackshaft; at least one fifth chain driven sprocket wheel operatively affixed to a third axle shaft of said first series of axle shafts; at least one fifth chain driven sprocket wheel operatively affixed to a third axle shaft of said second series of axle shafts; at least one fourth driving chain operatively interconnecting said third chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said first series of axle shafts to said fifth chain driven sprocket wheel affixed to said third axle of said first series of axle shafts to transmit said torque from said idler sprocket assembly to said fifth chain driven sprocket wheel and hence to said third axle shaft; and v at least one fourth driving chain operatively interconnecting said third chain sprocket wheel of said idler sprocket assembly mounted on said first axle shaft of said second series of axle shafts to said fifth chain driven sprocket wheel affixed to said third axle of said series of axle shafts to transmit said torque from said idler sprocket assembly to said fifth chain driven sprocket wheel and hence to said third axle shaft. 8 and 9. beautylish chantecaille. Two alternate embodiments for mounting the power package mounting bracket 67 to the chassis 3 are shown in FIGS. 10. This effectively prevents any distortions of the chassis 3 produced by undulating terrain from reaching the transmissions 55, 57 through the transmission mounting means 79, the distortion being dissipated in a pivoting motion of the transmission mounting means 79 about the trunnion-type mounting configuration. An added safety feature is the units ability to float. 6 is a top view of the chassis of the vehicle shown in FIGS. with twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. For example, any number of prime movers such as Wankel, Otto cycle, Diesel cycle, Vapor power cycle engines or compound power plants incorporating a number of these cycles may be used. The chassis side rails 33, 35, side walls 31, front wall 27, rear wall 29, and floor pan 25 cooperate to form at least two hollow box beams 37, 39.. The vehicle has a prime mover operatively associated with at least two hydrostatic transmissions which are mounted in a manner to isolate them from forces exerted on the vehicle. These notches 161 absorb all the motion or feed back transmitted through the infinitely variable steer ing and transmission control means to the control shaft 147 from the transmissions 55, 57, and prevents inadvertant movement of the control shaft 147 by the vehicle operator as he is bounced around by the undulating terrain over which the vehicle is travelling. Amphibious Function Body Material: ABS Plastics. As is best shown in FIG. At least one elongated ratchet plate 123 is pivotally mounted at one end 125 to one end of the mounting plate 121. FIG. 13 is a top-view of the drive chain tensioning device shown in FIG. structure; at least two spaced apart chassis side rails located interior to said chassis disposed along opposite longitudinal sides of and extending substantially the entire length of said chassis, each of said. This movement is accomplished by applying a bending force to the operators control shaft 167. 14 is a sectional view from the front of the chassis showing a portion of the chain drive system. 1'7 is a vertical sectional view of the vehicle operators control shaft console showing the preferred embodiment of the vehicle operators control shaft, the vehic'te operators control means, acutating means, and lost motion means. Two spaced apart side walls 31 are located along opposite longitudinal sides of the floor pan 25. 2, I4, 15 and 16) extend outwardly from opposite chassis side walls 31. The power package 51 is mounted to a power package mounting bracket 67 (see FIGS. FIG. FIG. 1 and 2, preventing any lost motion in the first control rod lever 181. 1, 2 and 3.
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