| 摘要 |
PURPOSE:To obtain a trim cover with a better appearance and a high fusion strength at a low cost by a method wherein a skin material, a wadding and a back base fabric are laminated sequentially on an ultrasonic wave receiving base having a fusing section with a necessary shape, compressed with an ultrasonic horn die and fused between necessary parts thereof by an ultrasonic vibration. CONSTITUTION:The upper layer of a skin material 1, the middle layer of a wadding 2 comprising ordinary urethane and the lower layer of a back base fabric 3 are laminated and fusion. Necessary parts 2a thereof are made to generate heat to fuse by an ultrasonic vibration thereby producing a trim cover. In this process, the skin material 1, the wadding 2 and the back base fabric 3 are laminated sequentially on an ultrasonic wave receiving base 5 having a fusing section 5a with a necessary fusing shape, compressed with ultrasonic horn dies 4, 4A, 4B and 4C divided into portions as required and are fused between necessary parts thereof under an ultrasonic vibration to produce a trim cover. |
