| 摘要 |
PROBLEM TO BE SOLVED: To provide a weatherstrip to provide characteristics responding to respective portions on which different forces are exerted and to provide manufacture thereof. SOLUTION: In an extrusion molding device 11, when the solid portion of a weather strip, the number of revolutions of a first screw 15 in a first material feed passage 13 is increased to a value higher than that of a second screw 16 in a second material feed passage 14 to feed a flexible sponge rubber. This constitution increases a ratio of solid rubber extruded through a mouthpiece 12 and widens a range of the rigid part of the weatherstrip. Further, reversely, by decreasing the number of revolutions of the first screw 15 to a value lower than that of the second screw 16, a ratio of the flexible sponge rubber is increased and a range of the flexible part of the weatherstrip is increased. |
