Patent ID: 6719670
Filing Date: 2004-04-13
Classification: F16H

Abstract:
A one-way output device with a clockwise-counterclockwise rotating unit comprising:a lengthwise hollow fixing sleeve having one end expanded into a recessed fixing base, said fixing sleeve having the other end fitted with a first bearing, said fixing base formed with a recessed stepped surface at an inner side, said stepped surface fitted with a second bearing, said fixing base provided with a plurality of support rods protruding outward around the outer circumference of said stepped surface, said fixing base having its outer circumferential side fitted thereon with a dry bearing, said fixing base provided inside with an annular solar gear, a pair of planetary gears and a positioning ring, said solar gear having one side formed with a shaft protruding outward and facing said fixing sleeve, said shaft of said solar gear inserted in a second bearing, said solar gear having the other side formed with a chamber, said two planetary gears respectively having two layers, said two planetary gears positioned between said fixing base and said positioning ring by pins, said two planetary gears having their inner-stage gears respectively meshing with the opposite outer sides of said solar gear, said positioning ring pressing the outer sides of the outer-stage gears of said two planetary gears, said positioning ring fixed on said support rods of said fixing base, an inner gear cover able to connect with an external subordinate wheel, said inner gear cover covered on the outer side of said fixing base, between said inner gear cover and said fixing base provided a bearing, said inner gear cover able to rotate freely, said inner gear cover formed with a through hollow in the center for receiving a third bearing, said inner gear cover having its inner circumferential wall formed with inner teeth, said inner teeth meshing with said outer-stage gears of said two planetary gears, said inner gear cover formed with a chamber in one side facing said fixing base, said chamber of said inner gear cover matching with said solar gear; a shaft inserted in both said fixing sleeve and said inner gear cover, said shaft able to be driven to rotate clockwise or counterclockwise by an external force, said shaft having one end near said fixing base fitted thereon with an inner and an outer drive ring, said inner and said outer drive ring respectively having its outer circumference formed with a polygonal surface, a cylindrical clutch fitted around said inner and said outer drive ring, said clutch having its outer circumferential surface bored with a plurality of inner side and outer side holes, said inner and said outer holes arranged lengthwise and linearly for respectively matching with the outer circumferential surfaces of said inner and said outer drive ring, each said inner and said outer side hole respectively receiving a ball therein, said shaft having its opposite ends respectively protruding out of said fixing sleeve and said inner gear cover and then clasped in position by a retaining ring, said inner drive ring, said outer drive ring, said clutch and said balls together mounted on said shaft and respectively received in said chambers of said solar gear and said inner gear cover; and said inner gear cover able to be actuated to always rotated clockwise whether said shaft is driven to rotate clockwise or counterclockwise.