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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10894523 B1

PDFFull Text
Date of Patent:
Jan. 19, 2021

Filed:

Oct. 02, 2018

Crash box and its manufacturing method

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Hiroyuki Ikuta, Nissin, JP;

Yu Takanezawa, Nissin, JP;

Rikuto Takagi, Toyota, JP;

Mitsutaka Yoshida, Nagakute, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Hilary L Gutman

Int. Cl.
CPC ...
B60R 19/34 (2006.01); B23K 26/08 (2014.01); B23K 26/082 (2014.01); B23K 26/00 (2014.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B23K 26/342 (2014.01); F16F 7/00 (2006.01); B23K 101/04 (2006.01); B23K 103/18 (2006.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
B60R 19/34 (2013.01); B23K 26/0006 (2013.01); B23K 26/082 (2015.10); B23K 26/0869 (2013.01); B23K 26/342 (2015.10); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F16F 7/003 (2013.01); B23K 2101/006 (2018.08); B23K 2101/04 (2018.08); B23K 2103/18 (2018.08); F16F 2224/0208 (2013.01); F16F 2224/0233 (2013.01); F16F 2226/04 (2013.01);
Abstract

A crash box capable of easily deforming into a bellows shape and absorbing impact energy more reliably, and its manufacturing method are provided. The present disclosure is applied to a crash box which is partly deformed in an axial direction to absorb impact energy when the crash box receives an impact in the axial direction. A first layer made of metal and a second layer made of metal containing a larger volume of bubbles than that of the first layer are alternately formed in the axial direction in the crash box according to the present disclosure.

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