孔または空隙を有する材料における接合素子の留め方法および留め用接合素子

Japanese Patent JP4258745

B2

A joining pin ( 3.2 ) with which two parts ( 1 and 2 ) made from a porous material, particularly wood or a wood-like material, are to be joined together, is anchored in the porous material at predetermined anchoring points ( 31, 33 ). For this purpose, a bore ( 4.2 ) with a closed inner end ( 41 ) is made in the parts ( 1 and 2 ). The shape of this bore ( 4.2 ) is so matched to the joining pin ( 3.2 ) that it can be introduced substantially without force expenditure into the bore and is positionable in a first position. At least one predetermined anchoring point ( 31, 33 ) between the joining pin ( 3.2 ) and the wall of the bore ( 4.2 ) is formed when pressure is built up by pressing the joining pin ( 3.2 ) with a pressing force (F) more deeply into the bore to a second position. Energy is supplied in a planned manner to the joining pin ( 3.2 ) so that at the predetermined anchoring points ( 31, 33 ) the thermoplastic material of the joining pin ( 3.2 ) is plasticized. The locally plasticized plastic material is pressed by the local pressure into the porous material of the parts and forms local, macroscopic anchors ( 10, 20 ). The joining pin ( 3.2 ) is, e.g., made entirely from a thermoplastic material and the energy for plasticizing is supplied thereto by ultrasonic vibration.

Eschlimann, Marzell
Mock, elmer
Triani, Laurent
Kester, Heinz

JP54462298A

April 30, 2009

March 19, 1998

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Wood Welding Age

E04B1/48; B29C65/00; F16B12/12; B29C65/56; F16B5/08; F16B11/00; F16B13/00; B29C65/06; B29C65/08; B29C65/36

JP5245941A

WO1996001377A1
US3612803
FR1164445A1

Yuichi Yamada
Masakazu Noda
Ikeda adult
Yasuhito Suzuki
Hiroyuki Nishimoto

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