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Weather strip and a core breaking machine for partially breaking the core of weather strip
Weather strip and a core breaking machine for partially breaking the core of weather strip
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机译:挡风雨条和用于部分断裂挡风雨条芯的断芯机
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摘要
A weather strip is formed in an integral structure comprising: a welt part to be put on a flange formed on the edge of an opening in the body of an automobile, a sealing part protruding from the outer side wall of the welt part; and a core formed by punching a plate and buried in the welt part. The weather strip has a breakout section in which the core is broken apart at plurality of positions so that the breakout section is stretchable and contractible. A core breaking machine comprises: shafts arranged in a row and supported for turning; bending members on which the breakout section of the welt part of the weather strip is put on, fixedly joined to the upper ends of the shafts, respectively; gears fixedly mounted on the lower ends of the shafts, respectively, so that the adjacent gears are engaged; and a driving mechanism for driving the gears for turning alternately in opposite directions to turn the bending members alternately in opposite directions through a predetermined angle, respectively. The core breaking machine bends the breakout section of the weather strip repeatedly and alternately in opposite directions to cause portions of the core in the breakout section of the weather strip are broken apart due to fatigue.
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