Image Number 3 for United States Patent #8117728.
A method of installing an open seal on a flange provided at a door installation opening of a vehicle, the installation being made by pressing the seal against the flange by a roller. A side face of the open seal temporarily installed on the flange is pressed by the tapered outer peripheral surface of a flange formed at one end of the roller body. Then, a back face of the open seal is pressed by the roller towards the flange. The roller is moved along the flange with constant pressing force.