Patent ID: 9138901
Filing Date: 2015-09-22
Classification: B25J,H01L

Abstract:
1. A transfer device comprising: a first arm configured to be rotated about a first axis line; a second arm configured to be rotated about the first axis line or a second axis line located at a different position from the first axis line; a first link whose one end is rotatably connected to a leading end of the first arm; a second link whose one end is rotatably connected to a leading end of the second arm; a holding table rotatably connected to the other ends of the first link and the second link and configured to hold thereon a transfer target object; a first posture holding link whose one end is rotatably connected to the first link; a second posture holding link whose one end is rotatably connected to the second link; a connecting shaft configured to connect the other ends of the first posture holding link and the second posture holding link; a pair of rollers comprising a first roller and a second roller provided at the connecting shaft and configured to be rotated about an axis line; and a pair of roller driving portions provided at the holding table and comprises a first roller driving portion in contact with the first roller, and a second roller driving portion in contact with the second roller, configured to allow the pair of rollers to be rotated thereon, wherein when the first arm and the second arm are rotated, the holding table is moved away from or close to the first axis line or the second axis line, when the first arm and the second arm are rotated, the roller in contact with the roller driving portion is rotated on the roller driving portion, and the pair of roller driving portions are straightly elongated, and the pair of rollers are arranged between the pair of roller driving portions.