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. 05, 1990
Filed:
Jan. 06, 1989
Kazuhiro Matsui, Aichi, JP;
Kabushiki Kaisha Kojima Shohten, Tokyo, JP;
Abstract
An instrument for assembling two board-shaped bodies, including an engagement tool adapted to be driven into an opening in one board-shaped body, and a fixing tool adapted to be driven into an opening in the other board-shaped body. The engagement tool includes an annular engagement member having a radially outwardly projecting engagement portion provided with an engagement pawl adjacent the tip thereof, and a rotary cam or eccentric which is rotatably positioned within the annular member to effect radial displacement of the pawl. The engagement tool also includes an annular housing which accommodates therein the annular engagement member, the housing having stops for controlling the rotation of the cam to a predetermined angle, and having an outer peripheral structure which permits it to fixingly engage the one board-shaped body. The fixing tool has an insertion hole into which the engagement portion is inserted, and an engagement pin engaged by the pawl to lock the tools together. The fixing tool has an annular outer periphery structure for fixedly securing the fixing tool to the other board-shaped body.