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:
Jun. 21, 2006
Tooru Kinoshita, Fuchu, JP;
Seiichi Someya, Fuchu, JP;
Satoshi Takasawa, Fuchu, JP;
Shin Murakami, Fuchu, JP;
Yoshinobu Ishikawa, Fuchu, JP;
Tooru Kinoshita, Fuchu, JP;
Seiichi Someya, Fuchu, JP;
Satoshi Takasawa, Fuchu, JP;
Shin Murakami, Fuchu, JP;
Yoshinobu Ishikawa, Fuchu, JP;
Toshiba Elevator Kabushiki Kaisha, Tokyo, JP;
Abstract
An elevator door apparatus includes an engaging device which engages car doors with hall doors. The engaging device uses a spring unit to urge a movable vane provided in each of the car doors. While the doors are moving, engaging rollers supported by the hall doors are sandwiched between the movable vane and a fixed vane. Thus, the driving forces of the car doors are transmitted to the hall doors. When the hall doors reach a door stop position, the movable vane is moved away from the fixed vane. Thus, the car doors are disengaged from the hall doors. At this time, a direction in which the elastic force of the spring mechanism acts is switched. Consequently, the car doors and the hall doors are stably held so that the car doors remain disengaged from the hall doors.