# US 2021/0277701 A1 · Opening and closing body drive device for vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0277701 A1 - Document ID: US20210277701A1 - Status: Published application - Kind: A1 - Application number: 17/188,267 - Filed: 2021-03-01 - Published: 2021-09-09 - Earliest claimed: 2020-03-06 - Assignees: Aisin Seiki Kabushiki Kaisha - Applicants: Aisin Seiki Kabushiki Kaisha - Inventors: Taishi ISONO; Toshio MACHIDA; Akinori SUZUKI - Web page: https://patentgrep.com/patent/US20210277701A1 ## CPC - E05F 15/646: allowing or involving a secondary movement of the wing, e.g. rotational or transversal - B60J 5/06: slidable; foldable - E05F 15/655: specially adapted for vehicle wings - E05Y 2201/652: Belts - E05Y 2201/672: Tensioners, tension sensors - E05Y 2900/531: Doors - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract An opening and closing body drive device for a vehicle opening and closing an opening and closing body of the vehicle includes a belt frame extending in a moving direction of the opening and closing body, a drive unit including an output shaft, a drive pulley connected to the output shaft of the drive unit, plural driven pulleys arranged spaced apart from each other in a longitudinal direction of the belt frame, a belt wounded around the drive pulley and the plural driven pulleys and fixed with a connector with respect to the opening and closing body, and a biasing member supported at the belt frame and pressing the belt from inward thereof. ## Claims ### Claim 1 An opening and closing body drive device for a vehicle opening and closing an opening and closing body of the vehicle, comprising: a belt frame extending in a moving direction of the opening and closing body; a drive unit including an output shaft; a drive pulley connected to the output shaft of the drive unit; a plurality of driven pulleys arranged spaced apart from each other in a longitudinal direction of the belt frame; a belt wounded around the drive pulley and the plurality of driven pulleys and fixed with a connector with respect to the opening and closing body; and a biasing member supported at the belt frame and pressing the belt from inward thereof. ### Claim 2 (depends on 1) The opening and closing body drive device for the vehicle according to claim 1, wherein the biasing member is a plate spring. ### Claim 3 (depends on 2) The opening and closing body drive device for the vehicle according to claim 2, wherein the biasing member includes a first end and a second end which is arranged at an end opposite to the first end, the first end which is a fixed end supported at the belt frame, the second end which is a free end. ### Claim 4 (depends on 3) The opening and closing body drive device for the vehicle according to claim 3, wherein the first end and the second end are arranged at opposing ends in an axial direction of the driven pulley, the first end is the fixed end and the second end is the free end, and the biasing member is separated from the belt frame toward the free end from the fixed end. ### Claim 5 (depends on 3) The opening and closing body drive device for the vehicle according to claim 3, wherein the first end and the second end are arranged at opposing ends in an axial direction of the belt, the first end is the fixed end and the second end is the free end, and the free end is accommodated in an accommodation hole provided at the belt frame. ### Claim 6 (depends on 1) The opening and closing body drive device for the vehicle according to claim 1, wherein the biasing member is a spring made of resin. ### Claim 7 (depends on 1) The opening and closing body drive device for the vehicle according to claim 1, wherein the biasing member is an elastic body made of elastomer. ### Claim 8 (depends on 1) The opening and closing body drive device for the vehicle according to claim 1, wherein the opening and closing body drive device for the vehicle opens and closes a sliding door serving as the opening and closing body. ### Claim 9 (depends on 8) The opening and closing body drive device for the vehicle according to claim 8, wherein the opening and closing body includes a guide rail configured with a first rail and a second rail, the first rail extends frontward of the vehicle, the second rail extending inward in a width direction of the vehicle from a front end of the first rail as extending toward a front of the vehicle, the opening and closing body is configured to be open and closed along the guide rail, the belt frame includes a first frame extending in a direction supporting the first rail; and a second frame extending in a direction supporting the second rail, and the biasing member is arranged at the second frame.