Oscillation platform

Abstract

An oscillation platform includes a base having four first pivot holders thereof and a swinging bar respectively pivotally connected to each of the first pivot holders, a motor, a transmission shaft pivotally mounted in the base and rotatable by the motor and having an eccentric rod at each of the two ends, two first links respectively pivotally coupled between the eccentric rods of the transmission shaft and two swinging bars, two second links respectively pivotally coupled between the eccentric rods of the transmission shaft and the other two swinging bars, and a platform, which has two second pivot holders, two connection members respectively pivotally coupled to the second links and two third links respectively pivotally coupled between the second pivot holders and the first links.

1 . An oscillation platform, comprising:
 a base for placing on a plane, said base having four first pivot holders thereof and four swinging bars respectively pivotally connected to said first pivot holders;   a motor mounted in said base and adapted to provide a rotary driving force;   a transmission shaft pivotally mounted in said base and coupled to and rotatable by said motor, said transmission shaft having an eccentric rod at each of two distal ends thereof;   two first links respectively pivotally coupled between said eccentric rods of said transmission shaft and one end of each of two said swinging bars of said base opposite to said first pivot holders;   two second links respectively pivotally coupled between the eccentric rods of said transmission shaft and one end of each of the other two said swinging bars of said base opposite to said first pivot holders;   a platform, said platform comprising two second pivot holders, two connection members respectively pivotally coupled to said second links, and two third links respectively pivotally coupled between said second pivot holders and said first links.   
     
     
         2 . The oscillation platform as claimed in  claim 1 , wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said second inks. 
     
     
         3 . The oscillation platform as claimed in  claim 1 , wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said second inks. 
     
     
         4 . The oscillation platform as claimed in  claim 1 , wherein the coupling positions between the second pivot holders and the first links are same as the coupling positions between the swinging bars and the first links and the coupling positions between connection members and the second links are same as the coupling positions between the swinging bars and the second links. 
     
     
         5 . The oscillation platform as claimed in  claim 1 , wherein the coupling positions between said third links and said first links and the coupling positions between said first links and said eccentric rods are respectively disposed at two opposite sides relative to the coupling positions between said swinging bars and said first links; the coupling positions between said connection members and said second links and the coupling positions between said second links and said eccentric rods are respectively disposed at the same side relative to the coupling positions between said swinging bars and said second inks. 
     
     
         6 . The oscillation platform as claimed in  claim 1 , further comprising a cushion pad supported on said platform. 
     
     
         7 . The oscillation platform as claimed in  claim 1 , further comprising a handrail mounted on said platform. 
     
     
         8 . The oscillation platform as claimed in  claim 1 , as claimed in  claim 1 , wherein said motor is a speed reducing motor. 
     
     
         9 . The oscillation platform as claimed in  claim 1 , further comprising a reduction device coupled between said motor and said transmission shaft and adapted for transferring the rotary driving force of said motor to said transmission shaft to rotate said transmission shaft.