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发明授权
US08926248B2 Family of fastening elements, check gauges and method for controlling the choice of the length of a fastening element 有权
紧固元件系列，检查计和用于控制紧固件长度选择的方法

Family of fastening elements, check gauges and method for controlling the choice of the length of a fastening element
摘要：
The invention refers to a family of fastening devices including at least two fastening elements (101, 121), each one of said elements including a shaped end portion (105), a frontal face (106) of the shaped end portion (105) having a cavity (107) extending as far as a bottom (108),the fastening elements having different maximum grips (Gmax), the family being configured so that the distance (109′) between the bottom (108) of the cavity (107) and the limit (170) between the body and the shaped end portion is identical for all the fastening elements (101, 121).The invention refers moreover to a unit (100) including such a family of fastening devices and a check gauge (150), as well as a method for checking of the choice of the length of a fastening element (101, 121), by means of the check gauge (150).
摘要（中）：

本发明涉及一种紧固装置系列，其包括至少两个紧固元件（101,121），所述元件中的每一个包括成形端部（105），成形端部（105）的正面（106）具有 延伸到底部（108）的空腔（107），紧固元件具有不同的最大夹具（Gmax），该系列构造成使得空腔（107）的底部（108）之间的距离（109'） 并且对于所有紧固元件（101,121），本体和成形端部之间的极限（170）相同。 本发明还涉及包括这种紧固装置系列和检查计（150）的单元（100），以及用于通过装置检查紧固元件（101,121）的长度的选择的方法 （150）。

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