Connecting elements and methods for connecting at least two workpieces

Japanese Patent JP6325702

B2

The invention relates to a connection element for interconnecting at least two workpieces, having a shaft; a connection-element head, radially protruding beyond the external side of the shaft, at the one end of the shaft; a drive configuration on the connection-element head and a front shaft end, wherein in a holding portion of the shaft that emanates from the lower side of the connection-element head at least one pair of closed annular protrusions are disposed thereon, of which at least one annular protrusion is not completely disposed in a plane that runs perpendicularly to the longitudinal axis of the shaft; and the spacings between the two annular protrusions of the pair along the circumference are of dissimilar size, or the two annular protrusions of the pair of annular protrusions are disposed so as to be mutually parallel; wherein the front end of the shaft is configured as a tapered hole-forming portion, and wherein a maximum external diameter of the hole-forming portion is between 3% and 10% smaller, in particular 5% smaller, than a maximum external diameter of the annular protrusions.

Highco mirror
Dominique frerich

JP2017011015A

May 16, 2018

January 25, 2017

Click for automatic bibliography generation  

Arnold Ummform Tehinik Gesell Shaft Mitt Beschlenktel Haftung Und Company Comandito Gesell Shaft

F16B5/02; F16B19/00; F16B15/06

JP2009523965A
JP2008180340A
JP2003027669A
JP6213220A
JP2015137764A
JP3148742U

WO2015022124A1

Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Yasushi Ohashi
Kentaro Ito
Kazuo Maejima

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