Patent ID: 8763969
Filing Date: 2014-07-01
Classification: F16M

Abstract:
1. A foldable display support for a screen, comprising: a screen support rack, used for fastening said screen, the bottom of said screen support rack being installed with at least a pivotal rotation part on which a limiting part being provided; a base, installed with a pivotal connection seat; a support arm, installed with at least an upper pivotal connection part and at least a lower pivotal connection part, said upper pivotal connection part being pivoted with said pivotal rotation part of said screen support rack through an upper hinge, said lower pivotal connection part being pivoted with said pivotal connection seat of said base through a lower hinge, and a lateral side of said support arm being installed with at least a linkage mechanism for linking said upper hinge and said lower hinge; said upper hinge including a core shaft, and a first cam, a second cam, a limiting sheet and a first elastic member being sleeved on said core shaft, said first cam and said second cam respectively having at least a protrusion, said limiting sheet having a block part mutually blocking with said limiting part of said screen support rack, for limiting the screen support rack to rotate within a first angle range; when said support arm being rotated through said lower hinge, said linkage mechanism linking said first cam to rotate relative to said second cam, when said protrusion of said first cam and said protrusion of said second cam contacting and abutting against each other, said second cam axially moving and pushing said limiting sheet for enabling said block part of said limiting sheet to be released from said limiting part of said screen support rack, thereby enabling said screen support rack to rotate within a second angle range; wherein a first sleeve tube is disposed between said second cam and said limiting sheet, said first sleeve tube is sleeved on said core shaft, and two ends of said first sleeve tube are respectively abutted said second cam and one side of said limiting sheet, said first elastic member is disposed at the other side of said limiting sheet.