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:
Dec. 08, 1992
Filed:
Jun. 28, 1991
Soushichi Koura, Yokohama, JP;
Jun Yamagishi, Yokohama, JP;
Masaichi Moriya, Yokohama, JP;
Hirotaka Nishizima, Yokohama, JP;
Ohi Seisakusho Co., Ltd., Yokohama, JP;
Abstract
A door drive device is disclosed, which comprises a guide rail for defining in the body of the vehicle a way along which the slide door moves; first and second pulleys arranged at spaced positions of the vehicle body; an electric drive unit for driving the first pulley; an endless belt put around the first and second pulleys with a slack thereof; a bracket for connecting a portion of the endless belt to the door; and a tensioning device for tensioning the endless belt. Due to provision of the slack of the belt, various advantages are obtained particularly when the door drive device of the invention is used in combination with other door controllers.