Patent ID: 9399421
Filing Date: 2016-07-26
CPC Classification: A47C,B60N

Claim Text:
1. A hinge, comprising a first frame, a second frame, a bolt, a gear, an adjusting nut, a spring component, a shield, and an engaging component having engaging teeth, the gear being rotatably set on the bolt, an end of the first frame having two opposite first clamping portions, the two first clamping portions being rotatably set on the bolt and clamping the gear, an end of the second frame having two opposite second clamping portions, the two second clamping portions being rotatably set on the bolt and clamping the two first clamping portions, the adjusting nut being screwed on the bolt and providing clamping force for the two first clamping portions and the two second clamping portions, an accommodating cavity being opened in the second frame, the engaging component being received in the accommodating cavity and engaging with the gear, the engaging component having a first sidewall, a second sidewall, and an end portion configured between the first sidewall and the second sidewall, the first sidewall and the second sidewall respectively being withstood with two sidewalls of the accommodating cavity in a separable manner, an unlocking space being defined between the end portion and a bottom wall of the accommodating cavity, when the first sidewall being withstood with one sidewall of the accommodating cavity, the engaging component moving downward to the unlocking space so as to disengage from the gear, when the second sidewall being withstood with the other sidewall of the accommodating cavity, the engaging component keeping engaging with the gear so as to prevent the gear from rotating, the spring component being configured between the second frame and the engaging component and providing elastic force for the engaging component to engage with the gear, and the shield being configured between the two first clamping portions and shielding an outer edge of the gear.