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:
Sep. 08, 2015
Filed:
Feb. 08, 2010
Mitsuya Uchida, Tokyo, JP;
Osamu Tanaka, Kanagawa, JP;
Kiyoshi Fukaya, Tokyo, JP;
Takumi Yoshimura, Tokyo, JP;
Toshiyo Tamura, Chiba, JP;
Yukitoshi Takahashi, Shizuoka, JP;
Mitsuya Uchida, Tokyo, JP;
Osamu Tanaka, Kanagawa, JP;
Kiyoshi Fukaya, Tokyo, JP;
Takumi Yoshimura, Tokyo, JP;
Toshiyo Tamura, Chiba, JP;
Yukitoshi Takahashi, Shizuoka, JP;
PROP CO., LTD., Tokyo, JP;
Abstract
An airbag device for the body instantaneously activates an airbag without malfunctions. When an absolute value of an angular velocity detected by an angular velocity sensor exceeds a predetermined angular velocity value, angular velocity values are integrated from a most recent detected value to an oldest value within a predetermined time period, and if an absolute value of a resultant value of integral exceeds a predetermined value and an acceleration detected by an acceleration sensor is smaller than a predetermined acceleration, the airbag is inflated. Based on the value of the integral of the angular velocities, a case in which an angular velocity gradually increases is distinguished from a case in which an angular velocity momentarily increases, so the airbag device effectively prevents malfunctions caused by an action other than falling over. Additionally, because it is unnecessary to intentionally delay determination to prevent malfunctions, the airbag can instantaneously be inflated.