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.:
Date of Patent:
Jun. 03, 2008
Filed:
Oct. 16, 2002
Shunji Ohno, Tokyo, JP;
Norio Nakajima, Tokyo, JP;
Kazumichi Iwasa, Tokyo, JP;
Masanori Tsuji, Tokyo, JP;
Tsuyoshi Doi, Tokyo, JP;
Yoshihisa Kohzu, Tokyo, JP;
Yoshihiro Agarihama, Hyogo, JP;
Shinya Ura, Osaka, JP;
Hideyuki Miyake, Tokyo, JP;
Shunji Ohno, Tokyo, JP;
Norio Nakajima, Tokyo, JP;
Kazumichi Iwasa, Tokyo, JP;
Masanori Tsuji, Tokyo, JP;
Tsuyoshi Doi, Tokyo, JP;
Yoshihisa Kohzu, Tokyo, JP;
Yoshihiro Agarihama, Hyogo, JP;
Shinya Ura, Osaka, JP;
Hideyuki Miyake, Tokyo, JP;
Shin Caterpillar Mitsubishi Ltd., Tokyo, JP;
Abstract
This invention relates to a non-slip structure, which is highly efficient in preventing a slip with no trouble caused by a through hole, thereby enhancing reliability. The non-slip structure of this invention is characterized in that a portion of a metal plate such as a steel plate and the like is sheared so as to form cutting lines (a pair of lateral side cutting lines and a joining cutting line) for forming a protruded piece and, at the same time, the protruded piece is pulled up along the cutting lines to a height, which does not exceed the thickness portion of the steel plate so as to raise the shearing surface (edge), so that the sheared surface does not form a gap nor any through hole in contacting the steel plate.