Patents by Inventor De-Ru TSAI

De-Ru TSAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11351589
    Abstract: A sheet metal hemming device is provided. The sheet metal hemming device includes a frame and a rolling wheel, a bearing wheel, a first rotating shaft, a second rotating shaft, a sliding block, an arc-shaped guide rail and a driver which are disposed on the frame. The rolling wheel is disposed on the first rotating shaft, the bearing wheel is disposed on the second rotating shaft, and an angle is formed between the rolling wheel and the bearing wheel. The sliding block is slidable relative to the arc-shaped guide rail and is connected to the rolling wheel via the first rotating shaft. The driver is connected to the sliding block for driving the sliding block to slide along the arc-shaped guide rail to adjust the angle between the rolling wheel and the bearing wheel.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: June 7, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: De-Ru Tsai, Yuan-Chieh Lo
  • Publication number: 20220143669
    Abstract: A sheet metal hemming device is provided. The sheet metal hemming device includes a frame and a rolling wheel, a bearing wheel, a first rotating shaft, a second rotating shaft, a sliding block, an arc-shaped guide rail and a driver which are disposed on the frame. The rolling wheel is disposed on the first rotating shaft, the bearing wheel is disposed on the second rotating shaft, and an angle is formed between the rolling wheel and the bearing wheel. The sliding block is slidable relative to the arc-shaped guide rail and is connected to the rolling wheel via the first rotating shaft. The driver is connected to the sliding block for driving the sliding block to slide along the arc-shaped guide rail to adjust the angle between the rolling wheel and the bearing wheel.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 12, 2022
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: De-Ru TSAI, Yuan-Chieh LO