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    • 7. 发明公开
    • 합성수지제 병체의 입구통부
    • 合成树脂瓶体的圆筒部分
    • KR1020060119710A
    • 2006-11-24
    • KR1020057020495
    • 2005-01-25
    • 가부시키가이샤 요시노 고교쇼
    • 다나카도시마사이즈카다카오고시다카유키오시미즈가즈히코
    • B65D1/02B65D1/26
    • B65D1/0246B29B11/08B29B11/14B29B2911/1402B29B2911/14026B29B2911/14033B29B2911/1404B29B2911/14106B29B2911/14133B29B2911/14326B29B2911/1434B29B2911/1442B29B2911/1444B29B2911/14466B29C49/06B29K2067/00B29L2031/7158B65D1/0223B65D2501/0018B65D2501/0036
    • A mouth cylindrical part of a synthetic resin bottle body capable of providing high pressure resistance and heat resistance and stably providing high sealability and resources-saving by maximally uniformizing the effect of a thread formed portion on the crystallization of a molten resin material along the circumferential direction of the mouth cylindrical part. Threads (3) formed by extending gradually downsized start end extension parts (5) and terminal end extension parts (6) from the body part start end (a) and the body part terminal end (b) of a body part (4) are formed on the outer periphery of the cylindrical wall (2) of the mouth cylindrical part (1) in the form of a multiple thread screw. The start end extension parts (5) and the terminal end extension parts (6) of the other threads (3) having an approximately same length are positioned overlappingly with each other in the vertical direction, and the entire part of the mouth cylindrical part (1) is whitened by thermal crystallization. Thus, shrinkage (h) can be eliminated from the upper end surface of the cylindrical wall (2) irrespective of an increase in bore of the mouth cylindrical part (1) and an increase in heat resisting temperature. Accordingly, an increase in height dimension due to an increase in bore of the mouth cylindrical part (1) can be suppressed.
    • 合成树脂瓶体的圆筒形部分,其能够提供高耐压性和耐热性,并且通过使螺纹形成部分沿着圆周方向的熔融树脂材料的结晶的最大化均匀化来稳定地提供高密封性和资源节省 口圆筒部分。 通过从主体部分起始端(a)和主体部分(4)的主体部分终端(b)逐渐缩小起始端延伸部分(5)和终端延伸部分(6)形成的螺纹(3) 形成在多个螺纹螺钉形式的口部圆柱形部分(1)的圆柱形壁(2)的外周上。 具有大致相同长度的其他螺纹(3)的起始延伸部(5)和末端延伸部(6)在垂直方向上彼此重叠地定位,并且口部圆柱形部分 1)通过热结晶而变白。 因此,与圆筒形部分(1)的孔的增加和耐热温度的增加无关,可以从圆柱形壁(2)的上端表面消除收缩(h)。 因此,可以抑制由于口部圆筒形部分(1)的孔的增加引起的高度尺寸的增加。