while the invention is susceptible of embodiment in many different forms , there is shown in the drawings and will herein be described in detail a preferred embodiment of the invention . it should be understood , however , that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the spirit and scope of the invention and / or claims to the embodiment illustrated . the invention produces two sychronous motions from an eccentric motion producing apparatus contained within a flexible shell . the eccentric motion may be produced by a cam and cam follower assembly or a rack and pinion type arrangement . the eccentric rotational energy is converted into longitudinal motion which is connected to the jointed yoke assembly . the jointed yoke assembly causes the flexible shell to momentarily form a &# 34 ; hump &# 34 ; resembling a &# 34 ; coughing &# 34 ; action along with a horizontal motion or &# 34 ; crawl &# 34 ; via four ratchet wheel assemblies . referring now to fig1 the numeral 10 refers generally to the amusement device of the present invention . an associated activation and control device 15 is depicted in wireless communication to the amusement device 10 . a flexible shell housing 20 is depicted to appear &# 34 ; rock - like .&# 34 ; associated horizontal surface 25 is shown supporting ratchet wheel assemblies 30 . ratchet wheel assemblies 30 are conventional and well known in the art . fig2 is a side cut - away view of the overall device 10 in which shell housing 20 is shown in its static rest position and its &# 34 ; coughing &# 34 ; motion by the outline form . base 40 is shown supported by ratchet wheel assembly 30 which in turn is supported by associated horizontal surface 25 . forward yoke 50 is shown in partial cut away and outline form with one end mounted to base 40 and the other end connected to aft yoke 60 . aft yoke 60 and forward yoke 50 are resiliently biased by a spring 70 ( only partially shown ) towards base 40 . aft yoke 60 is supported by two ratchet wheel assemblies 30 which rest upon surface 25 . flexible shell 20 is affixed only to the exterior edge of aft yoke 60 and the front end of base 40 . motor 80 rotationally drives gear train 85 to transmit rotational energy to spindle 87 and worm gear 90 which rotationally drives cam gear assembly 100 in which cam 105 is a part thereof . the cam follower assembly 110 produces longitudinal motion from cam 105 causing the jointed yoke assembly , forward yoke 50 and aft yoke 60 , to move in an oscillatory motion relative to the base 40 . in a single complete cycle , the jointed yoke assembly overcomes the bias caused by spring 70 and is positioned away from base 40 and then closer to and overlapping base 40 thereby causing flexible shell housing 20 to momentarily rise . concurrently , the motion of yokes 50 , 60 cause the ratchet wheel assemblies 30 to increment and rotate along the associated horizontal surface 25 . sound emitting device 120 is shown positioned within base 40 and within reverberation chamber 125 and is enclosed by speaker grill housing 127 . the sound emitting device 120 is directed downward toward the associated horizontal surface 25 so that the sound will reverberate within chamber 125 and then be deflected by surface 25 to the surroundings . associated cycle lock - in 130 and on / off switch 131 are also depicted . fig3 is a top cut away view of the device 10 showing base 40 supporting motor 80 . motor 80 drives gear train 85 transmitting rotational energy through spindle 87 to worm gear 90 in order to drive cam gear assembly 100 and in turn , cam 105 . cam 105 provides the eccentric motion for the device 10 . cam follower assembly 110 couples with cam 105 to transfer eccentric motion into movement which extends yokes 50 away from yoke 60 . aft yoke 60 is jointly coupled to forward yoke 50 in which the other end of forward yoke 50 is affixed to base 40 . base 40 is supported by ratchet wheel assembly 30 on one end and aft yoke 60 on the other . aft yoke 60 is supported by ratchet wheel assembly 30 . sound emitting device 120 is shown in outline form . fig4 is a front end partial cut away view of the device 10 depicting battery 140 supported by base 40 . shell housing 20 is partially shown . fig5 is a back end cut away view of the device 10 in which shell housing 20 is affixed to aft yoke 60 . on / off switch 131 is shown mounted within and extends beneath base 40 . ratchet wheel assemblies 30 are shown beneath aft yoke 60 and beneath the front end of base 40 . sound emitting device 120 is partially shown supported by base 40 . fig6 and 7 are top and side views respectively of the cam / gear assembly 110 and depicting cam 105 . fig8 and 10 are top , side and end views respectively of the cam follower assembly 110 . fig1 is an elevational view of the aft yoke 60 supported by ratchet wheels assemblies 30 upon an associated horizontal surface 25 . fig1 is a top view of the jointed yoke assembly showing aft yoke 60 and forward yoke 50 in which ratchet wheel assembly 30 supports aft yoke 60 . fig1 is a side elevational view of the jointed yoke assembly depicting in outline form the motion of yokes 60 and 50 . aft yoke 60 is supported by ratchet wheel assembly 30 and associated horizontal surface 25 . fig1 is a side elevational view of conventional ratchet wheel assembly 30 . fig1 is a front view of fig1 depicting the ratchet wheel assembly 30 . fig1 and 18 are top and side views of the reverberation chamber 125 . the operation of the present invention is simply and effectively described as follows . the overall invention is best understood by referring to fig2 - 5 in which on / off switch 131 is first positioned to connect associated cycle lock - in switch 130 with battery 140 to activate motor 80 . motor 80 provides rotational energy through gear train 85 , spindle 87 , worm gear 90 and to cam gear assembly 100 and cam 105 . the eccentric motion of cam 105 is translated into longitudinal motion by cam follower assembly 110 . the longitudinal motion of cam follower assembly 110 is transmitted to aft yoke 60 and through their coupling to yoke 50 . aft yoke 60 is biased by spring 70 toward the base 40 . the longitudinal motion of cam follower assembly 110 cause yokes 50 , 60 to operate in an oscillatory manner . shell housing 20 is affixed to the exterior of aft yoke 50 and to the front of base 40 such that when aft yoke 60 oscillates it causes flexible shell 20 to move in an up and down motion , appearing to &# 34 ; cough .&# 34 ; synchronously , the device 1 ( horizontally moves or &# 34 ; crawls &# 34 ; by the oscillatory motion of yokes 50 and 60 . the movement of device 10 is first produced by the rotation of ratchet wheel assemblies 30 on aft yoke 60 during the first half of the oscillatory cycle while the ratchet wheel assemblies 30 of base 40 are locked by the conventional ratchet mechanism of the wheel assemblies 30 . during the last half of the cycle , the reverse takes place , in which aft yoke 60 returns to its original position causing ratchet wheel assemblies 30 on base 40 to now rotate . this oscillatory motion is repeated cyclically by the eccentric motion produced by cam 105 and translated into longitudinal motion produced by cam follower assembly 110 . the device &# 39 ; s 10 horizontal motion or crawl is provided for in the present invention by the unique use of ratchet wheel assemblies 30 through the displaced motion of the aft yoke 60 jointed with the forward yoke 50 . associated cycle lock - in switch 130 may be used to control various cycles and the duration of the eccentric motion produced and translated into longitudinal motion and in turn the amount of rotation of ratchet wheel assemblies 30 and the resulting horizontal travel of the device 10 . a reverberation chamber 125 , in which sound emitting device 120 is positioned , enhances the &# 34 ; coughing &# 34 ; sound or other desired sounds produced by associated circuitry . furthermore , speaker grill housing 127 is raised into base 40 and above associated horizontal surface 25 in order to increase the reverberation effect of chamber 125 . the amusement device of the present invention may be used with associated sound emitting circuitry causing verbal coughs or other verbal comments regarding smokers or &# 34 ; gag - lines &# 34 ; by celebrities . it is further envisioned that the device be activated by either a wired or wireless remote control device or be responsive to an internal smoke detection apparatus . furthermore , it is envisioned that the device be configured with a conventional mechanism associated with the base or yoke assembly which will cause the entire device to roll over . it is further intended that the eccentric motion means could be comprised of a rack and pinion type of assembly instead of the cam and follower assembly shown in the drawings and described herein . the flexible shell housing may be constructed of a self - skinning polyurethane or other conventional material so as to depict a &# 34 ; rock &# 34 ; or other article . while the foregoing has presented certain specific embodiments of the present invention , it is to be understood that these embodiments have been presented by way of example only . it is expected that others will perceive differences which , while bearing from the foregoing , do not depart from the spirit and scope of the invention herein described and claimed .
an amusement device consisting of a base frame having a first and second end . a pair of ratchet wheel assemblies mounted to an supporting the second end of the base frame . a motor is mounted within the base frame . a cam is rotatably driven by the motor . a yoke assembly having a first and second end in which the second end of the yoke assembly is oscillatorially activated by the cam to cause the first end of the yoke assembly to oscillate relative to the first end of the base frame . a pair of ratchet wheel assemblies are mounted at the first end of the yoke assembly such that when the first end of the yoke assembly oscillates , the ratchet wheels rotate .