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:
Apr. 01, 2008
Filed:
Sep. 29, 2005
Kazumi Teratani, Hirakata, JP;
Kazumi Teratani, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A door device equipped with a lock, which prevents forgetting to lock a door and the like, without an electrical warning device. The door device includes a lock allowing a rotating shaft to rotate between an opened position and a closed position by inserting and rotating a key and the key to be extracted only at the closed position, a cam rotating between the opened position and the closed position in linkage with the rotating shaft, and an oscillating strip oscillating between a first position and a second position, thereby contacting a door projection and moving to the first position when the door is closed while moving to the second position when the door is opened. An oscillating projection and a cam projection do not contact when the oscillating strip is in the first position, while they contact when the strip is in the second position. Thus, the cam rotation is suppressed and the lock rotation is restricted in the opened position.