| 摘要 |
<p>PURPOSE:To stick leather sheets together easily and rationally by making use of an existing vacuum molding machine for plastic, by a method wherein an adhesive agent is applied to only the outside of a vessel, the leather sheet made of vinyl chloride covers horizontally a clamp frame, heated from the lower part, an elevating table is raised rapidly and a vacuum pump is actuated. CONSTITUTION:A synthetic rubber based adhesive agent or a cyanoacrylate adhesive agent D is applied to four sides of the outside 1a of an injection-molded or press-molded vessel 1 exclusive of the bottom with a brush. A leather sheet B is heated from the lower part and when the same is heated and begins dangling, a heater 5 is moved backward immediately. Pushing up and expansion of the leather sheet B are performed by raising an elevating table 3, an opening and closing valve 8 is opened at the same time and the leather sheet B is sucked through a vacuum-drawing hole 7 by actuating a vacuum pump. The leather sheet B is stuck firmly to an external circumferential surface of the vessel 1 with pressing by the vessel like this and suction force of the vacuum pump.</p> |
