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公开(公告)号：EP3325828A1
公开(公告)日：2018-05-30
申请号：EP16753954.3
申请日：2016-07-22
申请人： RDO Alpha
IPC分类号： F16B39/284
CPC分类号： F16B39/284
摘要： The invention relates to a bolt (1) with restrained unscrewing composed of a screw (2) and a nut (3), said screw (2) or said nut (3) comprising, in the axial direction, at least three stepped portions of continuous thread (4), namely an introduction portion (5) for introducing the screw (2) into the nut (3), a restraining portion (6) and an intermediate portion (7) linking the introduction portion (5) to the restraining portion (6), characterised in that said restraining portion (6) has a thread diameter (41) that is constant and different from the thread diameter (42) of the introduction portion (5).
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2.发明公开
公开(公告)号：EP2349607A2
公开(公告)日：2011-08-03
申请号：EP09815468.5
申请日：2009-10-23
申请人： RDO Alpha
CPC分类号： B21K1/46 , B21K1/463 , B25B13/04 , B25B13/065 , B25B13/08 , F16B23/003 , F16B23/0061 , F16B23/0076
摘要： The invention relates to a method for manufacturing a bolting part, such as a screw (10) or a nut, comprising a head (12) comprising a perimeter (18) including at least one shoulder (20) extending in a radial plane. The method comprises at least the following shaping steps: shearing a wire of material (38) so as to obtain a part with a predetermined length, calibrating the part so as to correct the geometry of the part, blanking the calibrated part (34) so as to obtain the head of the bolting part, and finishing the blanked part by means of a third punch (36) so as to form a head comprising at least one shoulder (20), the calibration, blanking and finishing steps being performed only by cold stamping.
摘要翻译： 一种用于制造螺栓连接部分的方法，检查螺钉或螺母。 与具有至少一个肩部在径向平面中延伸的周边的头的螺栓部分。 该方法包括至少以下形成步骤：材料的线材的剪切，以便获得确定的开采长度的一部分，该部分的校准，以便校正所述部件的几何形状，所述校准的零件的粗加工，以便获得 螺栓部的由第三冲头的装置中的头，和粗机械加工零件的精加工，从而形成一个头，具有至少一个肩部。 校准，粗加工和精加工步骤只通过冷镦正在开展。
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公开(公告)号：EP3325828B1
公开(公告)日：2020-01-29
申请号：EP16753954.3
申请日：2016-07-22
申请人： RDO Alpha
IPC分类号： F16B39/284
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公开(公告)号：EP2946120A1
公开(公告)日：2015-11-25
申请号：EP13791848.8
申请日：2013-10-18
申请人： RDO Alpha
CPC分类号： F16B4/004 , F16B5/02 , F16B33/002
摘要： The invention relates to a coupling comprising at least two parts (10, 11) to be assembled and a bolt (1), said bolt (1) including a screw (2) provided with a screw head (4) and with a threaded portion (5), and a nut (3) provided with a threaded portion (8) capable of engaging with said threaded portion (5), in order to clamp said two parts (10, 11) between said screw (2) and said nut (3), said at least two parts (10, 11) being provided with a bore (12) arranged so as to enable said threaded portion (5) to pass therethrough. Said bolt (1) includes a penetration cone (6) secured either to the screw (2) or to the nut (3), said penetration cone (6) being provided with at least two teeth (7), and the crimping diameter of the penetration cone (6), which is defined as the maximum diameter thereof, is greater than the diameter of the bore (12) by a value of 4 to 6% of the nominal diameter of the screw.
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