Patent ID: 7849966
Filing Date: 2010-12-14
Classification: B25H

Abstract:
1. A collapsible stand comprising: a platform supporting a machine and having two sleeves pivotally connected thereon; two first legs each having a top end pivotally connected to the platform; two second legs each of which is pivotally connected to a respective one of the first legs at a pivotal point, and each having a top part inserted through a respective sleeve and slidable along the sleeve resulting in relative movement with respect to the platform; at least one first biasing member retained on one of the second legs, located between the respective sleeve and the respective pivotal point, and stopped against the respective sleeve; locking means connected to the platform for fixing the second legs after spreading the stand open such that the first legs and second legs support the platform at a predetermined height; wherein the top parts of the second legs protrude out of the platform and the first biasing member is compressed after the locking means releases the second legs and the stand is folded; wherein the locking means comprises two first links and an operating handle, wherein the axial directions of the two first links and the operating handle are substantially perpendicular, the two first links respectively fix the two second legs in a locked position after the stand is spread open, and the operating handle moves the two first links to release the two second legs when the operating handle is pulled; and wherein the locking means further comprises two second links each having an end pivotally coupled to the operating handle and the other end pivotally coupled to a respective first link wherein the locking means further comprises a second biasing member mounted on the operating handle which is deformed when the operating handle is pulled, wherein the operating handle of the locking means is axially movably mounted on the platform and moves in the handle's axial direction when pulled to release the two second legs.