Abstract: A hinge assembly for use in a flat display monitor includes a support member, a rotational base and a pivot mechanism for rotatably connecting the rotational base to the support member. The support member includes two first sidewalls, a first resisting surface and a second resisting surface. Each first sidewall defines a pivoting hole. The pivot mechanism includes a pivotal shaft, a limiting washer and a fixing element. The pivotal shaft includes a shaft portion running through the pivoting bole. The pivotal shaft is non-rotatable relative to the support member. The limiting washer includes a first restricting surface and a second restricting surface. The limiting washer is non-rotatable relative to the rotational base with the first restricting surface and the second restricting surface configured for resisting the first resisting surface and the second resisting surface respectively.

Abstract: An exemplary hinge assembly for use in a flat display monitor includes a support member, a rotational base and a pivot mechanism for rotatably connecting the rotational base to the support member. The support member includes two first sidewalls, a first resisting surface and a second resisting surface. Each first sidewall defines a pivoting hole. The pivot mechanism includes a pivotal shaft, a limiting washer and a fixing element. The pivotal shaft includes a shaft portion running through the pivoting hole. The pivotal shaft is non-rotatable relative to the support member. The limiting washer includes a first restricting surface and a second restricting surface.

Abstract: An exemplary hinge assembly (30) includes a main mount (302), a pivot shaft (304), two active friction pieces (308, 309), two fixed friction pieces (306, 307), an elastic assembly (310, 311), and a fixing member (314). The active friction pieces are non-rotatably surrounded on the pivot shaft. The fixed friction pieces are rotatably surrounded on the pivot shaft. One fixed friction piece and one active friction piece are disposed at one side of the main mount and abutting each other. The other fixed friction piece and the other active friction piece are disposed at an opposite side of the main mount and abutting each other. The elastic assembly is surrounded on the pivot shaft and is configured to provide axial force. The fixing member is mounted at one end of the pivot shaft.

Abstract: An exemplary swivel hinge assembly (100) includes a main body (12), a pivot mechanism (16) and a swivel mechanism (15). The swivel mechanism includes a rotatable member (182), a fixing member (184), two bearing balls (185), an elastic piece (186), and a second pivot shaft (189). The rotatable member defines two first bearing grooves (1820). The fixing member defines two second bearing grooves corresponding to the first grooves. The bearing balls are disposed between the rotatable member and the fixing member, and are partly received in the second bearing grooves. The elastic piece is mounted on the main body, elastically resisting the fixing member. The second pivot shaft extends through the main body, the elastic piece, the fixing member, and the rotatable member, and is rotatable relative to the elastic piece, the main body, and the fixing member.

Abstract: An exemplary hinge assembly (100) includes a first body (10), a follower (30), a second body (60), and an elastic element (50). The first body includes a shaft portion (13) and a friction portion (20) located around the shaft portion. The friction portion is non-rotatable relative to the shaft portion. The friction portion includes a curved friction surface (23). The follower includes a curved follower surface (311) and a locking portion (33). The follower is located around the shaft portion and is rotatable relative to the shaft portion. The second body includes a locking portion (616). The locking portion of the follower is engaged in the locking portion of the second body to prevent the follower from rotating relative to the second body. The elastic element is located between the follower and the second body, so as to bias the follower surface against the friction surface.

Abstract: An exemplary swivel hinge assembly (10) includes a main body (10), a pivot mechanism (16) and a swivel mechanism. The pivot mechanism is connected to the main body and configured to provide the swivel hinge assembly with rotation about a first rotational axis. The swivel mechanism is configured to provide the swivel hinge assembly with rotation about a second rotational axis. The swivel mechanism includes a pivot shaft (189), a friction piece (184) and a pair of elastic pieces (188). The second pivot shaft is rotatably extended through the main body. The friction piece is non-rotatably mounted on the pivot shaft. The elastic pieces are mounted on the main body and elastically resist the friction piece.