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:
Jul. 23, 2024
Filed:
Apr. 02, 2020
Mitsui Kinzoku Act Corporation, Yokohama, JP;
Abstract
A door opening device for an access door includes an upper lock device, a lower lock device, and a handle device, the lower lock device has a first bias member for biasing a lower opening lever in an opposite direction to an unlocking direction, the handle device has a handle into which an unlocking operation is inputted, a first lever to which an upper cable and a lower cable are connected, a second lever which rotates in a first direction in response to an unlocking operation and transmits this rotation to the first lever, and a second bias member for restoring the second lever to an initial position, and the second lever has a play stroke defined between a point in time when the second lever starts to rotate from the initial position to a point in time when the second lever transmits the rotation to the first lever.