Patent ID: 8336168

Claim:
A hinge mechanism, comprising: a fixing member; at least one first pivot assembly; a rotary member having a first end rotatably assembled to the fixing member via the first pivot assembly, and a second end opposite to the first end thereof; at least one second pivot assembly; an adjusting member having a first end rotatably assembled to the second end of the rotary member via the second pivot assembly, and a second end opposite to the first end thereof; at least one third pivot assembly; and a support member rotatably assembled to the second end of the adjusting member via the third pivot assembly; wherein, the rotary member is capable of being positioned to form an acute angle relative to the fixing member, the adjusting member is capable of being positioned to form an preset acute angle relative to the rotary member; the support member is capable of being positioned to form an obtuse angle relative to the adjusting member and form an acute angle relative to the rotary member, each of the at least one first pivot assembly comprises a pivot shaft, an elastic member, a positioning washer and a fastener, one end of the pivot shaft is fixed to the fixing member, the other end of the pivot shaft passes through the first end of the rotary member, the positioning washer, and is fixed with the fastener, the elastic member is sleeved on the pivot shaft and abuts against the fixing member and the rotary member, for generating an elastic force to drive the rotary member to rotate relative to the fixing member, and the positioning washer is sleeved on the pivot shaft for positioning the rotary member.