Rocking mechanism

Abstract

The hereby presented invention concerns a rocking device that includes a drive mechanism which actuates with an alternative motion one end of an elastic cord, which, through its other end, impairs the alternative motion to a carrying handle or any other equivalent attachment point of a baby chair or support or carrying for youngsters (babies), that is adequate for that purpose, being the drive mechanism and the elastic cord associated in such a way that, by adjusting its motor idle speed, the frequency of the inducer movement adjusts itself to the natural frequency of the movement induced on the baby chair or support device with the baby. In an alternative version of the invention the rocking device is attached to the baby chair or support device and the elastic cord is fixed to an external attachment point.

1 - 34 . (canceled) 
   
   
       35 . A Rocking device for inducing an oscillatory swing movement to a support or transport device having a carrying handle or a fixation point and able to be rocked, comprising a drive mechanism and a power source,
 wherein further comprises
 a speed reduction mechanism comprising a pulley, 
 an eccentric shaft for converting rotational movement to reciprocate movement, 
 an elastic cord for connection to the carrying handle or the fixation point, 
   wherein   the speed reduction mechanism is connected to the drive mechanism,   the eccentric shaft is eccentrically placed in the pulley of the speed reduction mechanism and is connected to one end of the elastic cord,   the other end of the elastic cord is fixed to said fixation point of the support or transport device; and   the speed reduction mechanism transmits movement from the motor to the pulley and therefore to the eccentric shaft, which shaft converts the rotation movement of said pulley to a reciprocate movement of said elastic cord inducing an angular displacement of the fixation point thus producing a swing movement of the support or transport device, the elastic cord adjusting itself to absorb different distances, between the eccentric shaft and the fixation point, caused by the instantaneous phase differences between the movement of the eccentric shaft and the fixation point.   
   
   
       36 . Rocking device according to  claim 35 , characterized in that the drive mechanism comprises a motor which has a sensible loss of rotation speed when it is dragged by the traction force of the elastic cord, adjusting itself that way the frequency of the inducer movement to the frequency of the movement induced in the support or transport device. 
   
   
       37 . Rocking device according to  claim 35 , wherein the motor is directly connected to the pulley. 
   
   
       38 . Rocking device according to  claim 35 , wherein the drive mechanism comprises an electromagnetic coil or a wind up mechanism. 
   
   
       39 . Rocking device according to  claim 35 , wherein it further comprises a speed regulation device to regulate the speed of the motor. 
   
   
       40 . Rocking device according to  claim 39 , wherein the speed regulation device is a rheostat, a potentiometer or an electronic speed regulation device. 
   
   
       41 . Rocking device according to  claim 35 , wherein a regulation slot is provided in the pulley into which the eccentric shaft is regulated and fixed. 
   
   
       42 . Rocking device according to  claim 35 , wherein the elastic cord comprises a strap and an elastomer. 
   
   
       43 . Rocking device according to  claim 42 , wherein the strap comprises an adjustable fixation loop. 
   
   
       44 . Rocking device according to  claim 42 , wherein the elastomer of said elastic cord is a torque limiting device. 
   
   
       45 . Rocking device according to  claim 35 , wherein the elastic cord consists of a belt made of a natural or synthetic elastomer. 
   
   
       46 . Rocking device according to  claim 35 , wherein the elastic cord is a spring. 
   
   
       47 . Rocking device according to  claim 35 , wherein the elastic cord is a pneumatic cylinder with an adjustable fixation device. 
   
   
       48 . Rocking device according to  claim 35 , wherein the power source consists of an accumulator and/or a transformer. 
   
   
       49 . Rocking device according to  claim 35 , wherein the support or transport device ( 1 ) is a baby support device. 
   
   
       50 . Rocking device according to  claim 35 , wherein it is built in the support or transport device. 
   
   
       51 . Rocking device according to  claim 35 , wherein is portable.