Patent attributes
A linkage supporting device is used for supporting a display on a working surface, including: a base that can be placed on the working surface, and first and second shafts fixed to the base without coinciding with one another; a first bar member having a main bar with two ends pivotally disposed on the first and third shafts, respectively; a second bar member having two ends pivotally disposed on the third and fourth shafts, respectively; a third bar member having two ends pivotally disposed on the fourth and fifth shafts, respectively; a fourth bar member that has a sliding bar slidably received in a receiving space of the main bar and having two ends pivotally disposed on the fifth and sixth shafts, respectively; a fifth bar member having two ends pivotally disposed on the sixth and second shafts, respectively; and a spring member received in the receiving space and having two ends connected to the first and fourth bar members, respectively.
