An electronic device and hinge assembly includes an electronic device body including a base and a main unit, and hinge devices pivotally connecting the base and the main unit for allowing adjustment of the angular position of the main unit relative to the base step by step in a series of angles. Eac
An electronic device and hinge assembly includes an electronic device body including a base and a main unit, and hinge devices pivotally connecting the base and the main unit for allowing adjustment of the angular position of the main unit relative to the base step by step in a series of angles. Each hinge device includes a casing affixed to one of the base and the main unit, a pivot shaft connected to the base and the main unit and rotatably inserted through the casing and secured by a retaining ring, and a friction wheel set and a damper mounted on the pivot shaft. The friction wheel set includes a first friction wheel and having recessed portions equiangularly spaced at one side thereof, and a second friction wheel rotatable with the pivot shaft relative to the first friction wheel and having raised portions respectively engageable into the recessed portions.
대표청구항▼
1. An electronic device and hinge assembly, comprising an electronic device body, said electronic device body comprising a base and a main unit, and a plurality of hinge devices pivotally connected between said base and said main unit for allowing adjustment of the angular position of said main unit
1. An electronic device and hinge assembly, comprising an electronic device body, said electronic device body comprising a base and a main unit, and a plurality of hinge devices pivotally connected between said base and said main unit for allowing adjustment of the angular position of said main unit relative to said base, wherein each said hinge device comprises a casing selectively affixed to one of said main unit and said base, said casing comprising an accommodation chamber therein, an opening in one of two opposite ends thereof in communication with said accommodation chamber and an axle hole axially extending the two opposite ends thereof in a bottom side of said accommodation chamber, a pivot shaft, said pivot shaft comprising a shaft body inserted through said axle hole, a mating connection portion located at one end of said shaft body and disposed outside said opening and a retaining groove extending around the periphery of an opposite end of said shaft body outside said axle hole, a retaining ring fastened to said retaining groove and stopped outside said casing, a friction wheel set mounted on said shaft body in said accommodation chamber, and a damper mounted on said shaft body and abutted against said friction wheel set, said friction wheel set comprising a first friction wheel mounted around said shaft body and fixedly connected to said casing and a second friction wheel mounted on said shaft body and rotatable with said shaft body relative to said first friction wheel, said first friction wheel comprising a plurality of recessed portions equiangularly spaced at one side thereof, said second friction wheel comprising a plurality of raised portions equiangularly spaced at one side thereof and respectively facing toward and engageable into said recessed portions of said first friction wheel. 2. The electronic device and hinge assembly as claimed in claim 1, wherein said base of said electronic device body comprises a first pivot-connection block raised from a top wall thereof; each said hinge device further comprises a first mounting plate extended from the casing thereof and affixed to said first pivot-connection block of said base, and a locating slot located in said first mounting plate in communication with the associating said axle hole for accommodating the associating said retaining ring. 3. The electronic device and hinge assembly as claimed in claim 2, wherein said first pivot-connection block of said base comprises a first shaft groove, and two mounting holes located at two opposite ends of said first shaft groove; the first mounting plates of two said hinge devices are respectively fixedly fastened to said two mounting holes. 4. The electronic device and hinge assembly as claimed in claim 1, wherein said electronic device body further comprises a second pivot-connection block located at a back wall of said main unit, and a support arm connected between said second pivot-connection block and said base, said support arm comprising a mounting groove located in a bottom end thereof; each said hinge device further comprises a second mounting plate extended from the mating connection portion of the respective said pivot shaft, the second mounting plates of two said hinge devices being respectively affixed to two opposite ends of said mounting groove in the bottom end of said support arm. 5. The electronic device and hinge assembly as claimed in claim 4, wherein said support arm further comprises a second shaft groove located in an opposing top end thereof and pivotally connected to said second pivot-connection block at said main unit by two said hinge devices. 6. The electronic device and hinge assembly as claimed in claim 1, wherein said casing of each said hinge device further comprises an insertion slot radially cut through the periphery thereof in communication with said accommodation chamber and disposed adjacent to said opening, a position-limit groove located in one end thereof in communication with said opening, and two stop edges located at two opposite sides of said position-limit groove; said pivot shaft of each said hinge device further comprises a stop block connected between the mating connection portion and shaft body thereof and biasable with the respective said pivot shaft in the position-limit groove of the associating said casing and stoppable at one of the two stop blocks of the associating said casing; said first friction wheel of said friction wheel set of each said hinge device comprises an engagement lug extended from the periphery thereof and engaged into said insertion slot of the associating said casing. 7. The electronic device and hinge assembly as claimed in claim 1, wherein said pivot shaft of each said hinge device further comprises an outer thread extending around the periphery of the shaft body thereof; each said hinge device further comprises a locking member threaded onto said outer thread of the associating said shaft body and stopped at the associating said damper against the associating said friction wheel set. 8. The electronic device and hinge assembly as claimed in claim 7, wherein said damper of each said hinge device comprises two washers mounted on said shaft body of the associating said pivot shaft, and a plurality of elastic members mounted on said shaft body of the associating said pivot shaft and stopped between said two washers, one said washer being abutted against said second friction wheel of the associating said friction wheel set, the other said washer being abutted against the associating said locking member.
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이 특허에 인용된 특허 (3)
Oh, Sang Kil, Hinge unit and an electronic apparatus having the same.
Deily, Mike F.; Reed McLaughlin, Robyn Rebecca; Park, Daniel C.; Hewett, Anthony J.; Bitz, Brian; Brown, Harold A.; Davis, Eric; Gault, Joe; Klein, Steve; Lin, Ingrid, Device with a rotatable display.
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