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1. 发明申请

WO2005047715A1 MULTI-TIERED-RECESS SCREWS 审中-公开
标题翻译：多层螺旋螺丝
公开(公告)号：WO2005047715A1
公开(公告)日：2005-05-26
申请号：PCT/GB2004/004668
申请日：2004-11-04
申请人： UNI-SCREW WORLDWIDE, INC , BROOKS, Laurence, Antony
发明人： BROOKS, Laurence, Antony
IPC分类号： F16B23/00
CPC分类号： B25B15/008 , F16B23/0038 , F16B23/0053
摘要： A screw (10) and driver (30) system comprises a range of screws and a driver. Each screw has a head (12) having a driving recess (14) in its surface (13) for engagement by the driver. Each screw has a longitudinal axis (100). The recess (14) of larger screws in the range have a plurality of superimposed recess-tiers (16a,b,c) of decreasing size with increasing depth from said surface. Each recess-tier has substantially parallel driving surfaces. They are substantially parallel the longitudinal axis. The driver and recess are shaped so that, when the driver is engaged with the recess of any screw in the range, torque applied to the driver is transmitted to the screw through said driving surfaces. At least one recess-tier (16c) of at least smaller screws in the range has a rib (20) which is parallel the longitudinal axis (100) and encroaches into the space of the recess-tier occupied by the driver when it is engaged with the recess. Engagement of the driver with the recess causes deformation of rib, and hence creation of an interference fit of the driver in the recess.
摘要翻译：螺钉（10）和驱动器（30）系统包括一系列螺钉和驱动器。每个螺钉具有在其表面（13）中具有用于由驾驶员接合的驱动凹部（14）的头部（12）。每个螺杆具有纵向轴线（100）。在该范围内的较大螺钉的凹部（14）具有随着从所述表面的深度增加而减小尺寸的多个叠加的凹陷层（16a，b，c）。每个凹陷层具有基本平行的驱动表面。它们基本上平行于纵轴。驱动器和凹部的形状使得当驾驶员与该范围内的任何螺钉的凹部接合时，施加到驾驶员的扭矩通过所述驱动表面传递到螺钉。在该范围内的至少较小的螺钉的至少一个凹陷层（16c）具有平行于纵向轴线（100）的肋（20），并且当它被接合时被侵入到由驾驶员占据的凹陷部分的空间中与凹槽。驾驶员与凹部的接合导致肋的变形，并且因此产生驾驶员在凹部中的过盈配合。

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