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:
May. 07, 2002
Filed:
Jun. 09, 2000
Yoshio Watanuki, Kanagawa-ken, JP;
Tetsuyuki Tsukano, Kanagawa-ken, JP;
Satashi Ogata, Kanagawa-ken, JP;
Other;
Abstract
A lock apparatus of the invention capable of being locked/unlocked by an electronic key, comprises: an electronic key having a circuit chip generating an electronic signal, and an insertion portion provided at an end thereof and comprised of a pair of opposing flat portions and slope portions on both sides so as to be formed in a tapered flat shape; and a rotating member having an insertion hole opening at an end face thereof and in which the insertion portion of the electronic key is to be inserted, an opening portion of the key insertion hole having a rectangular sectional shape corresponding to a cross section of the insertion portion and being larger than an end of the insertion portion, and an interior of the key insertion hole being formed in a tapered flat shape corresponding to the tapered flat shape of the insertion portion and having a slant wall as a side face. Here, a rotating force from the electronic key inserted into the key insertion hole is transmitted to the rotating member through substantially full contact between the opposing flat portions of the electronic key and the interior the key insertion hole.