Patents Assigned to Tung-Chien Fu
  • Punching elasticity adjustment structure
    Patent number: 9956466
    Abstract: The present invention discloses an elasticity adjustment structure of physical training device which comprise one elastomer adjustment set; said elastomer adjustment set further comprises one first elastomer and one second elastomer. Overlapping the said second elastomer and said first elastomer with different rigidities at different depth positions to create a smooth elastic curve of said elastomer adjustment set; as a result the elasticity of said elasticity adjustment structure may be adjusted in accordance with different needs.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: May 1, 2018
    Assignee: Tung-Chien Fu
    Inventor: Tung-Chien Fu