ねじ要素

Japanese Patent JP7085569

B2

The present invention relates to a screw element (1) comprising a threaded shaft (2), a screw tip (4) formed on one shaft end and a screw head (5), formed on an opposite shaft end and with force application means (7), and comprising a screw thread (12) extending on the threaded shaft (2) and on the screw tip (4), wherein the screw tip (4) has a front tip section (4a) tapering toward the screw element end, when viewed in the screwing-in direction (Z), and a section (4b) formed on the threaded shaft with a polygonal cross section, when viewed in cross section, whose enveloping circle diameter (dh) is greater than a core diameter (dk) of the screw tip (4), and the polygonal cross section has a corner point (15) lying on the enveloping circle of the section (4b), and a front edge surface (9), radially oriented with respect to a longitudinal center axis (X-X), ends in said corner point in the sense of an increased diameter. The screw tip (4) has a first tapering tip section (4a) with a circular cross section and a second, cylindrical tip section (4c) with a circular cross section formed between the first tip section (4a) and the polygonal section (4b), wherein the screw thread (12) is continuously formed without interruption across the first and second tip sections (4a, 4c) of the screw tip (4).

JPH0817623	MAGNET WITH SCREW
JPS59158706	[Title of the device] Fixing tool

Frank Langeviche

JP2019561291A

June 16, 2022

May 08, 2018

Click for automatic bibliography generation  

SPAX INTERNATIONAL GMBH & CO. KG

F16B35/00; F16B25/02; F16B25/06

JP2014228146A
JP2006329254A

DE202010010250U1
WO2015144441A1
US20090028665

Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima class

Previous Patent: Overlapping Multiplexing System Processing Methods, Devices and Systems

Next Patent: How to make methionine