改进的自行车天心碗组
申请公布号:CN2218277Y
申请号:CN95200881.5
申请日期:1995.01.12
申请公布日期:1996.01.24
发明人:纪易成
分类号:F16C33/58
主分类号:F16C33/58
代理人:张民华
地址:中国台湾省台中县
摘要:本实用新型是关于一种结构改进的自行车的天心碗组,其中管及五通管的一端螺设有反牙碗,中天心轴两侧各设有可抵靠钢珠的钢珠靠环,在中管、反牙碗相对中天心轴的钢珠的位置设有钢珠轨;其优点在于:中管及反牙碗在相对螺合后,可依靠抵肩和抵缘的定位控制,完成中管、中天心轴和反牙碗的枢设过程而不需任何的调整,不但结构可靠而且组装十分方便。
主权项:1.一种结构改进的自行车的天心碗组,包括有一中管、一穿过中管放置的中天心轴及套设在中管外五通管,其特征在于:中管及五通管一端螺设有反牙碗,中天心轴两侧各设有可抵靠钢珠巢的钢珠靠环,并可组设在中管和反牙碗中,在中管、反牙碗相对钢珠的位置分别设有钢珠轨,中管相对反牙碗螺合的位置设有一抵肩,而反牙碗在相对抵肩的位置设有抵缘,当抵肩和抵缘互为抵接时,便分别使钢珠被中天心轴的钢珠靠环和中管的钢珠轨以及中天心轴的钢珠靠环和反牙碗的钢珠轨抵接定位;五通管在相对于反牙碗的端部螺设有一正牙碗,正牙碗在相对中管的端部设有锥形套合端。
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