Support structure
AssigneeJarllytec Co., Ltd.
InventorYu-Tsun Hsu
Life of this patent
Estimating the term…
Abstract
The present invention relates to a support structure. A main hinge of the structure is installed with a stop mechanism, so when an object to be supported is placed at a higher location while being in an unfolding state, the object to be supported is restrained from being rotated from a vertical state to a horizontal folding state, thereby preventing falling due to the unstable gravity center; when a connection unit is folded towards a base, an upper end of a first auxiliary connection member links the stop mechanism to rotate for gradually altering the stopping location, so the object to be supported is enabled to be horizontally folded; as such, the object to be supported can be maintained in a stable state during the folding process, thereby preventing the occurrence of falling.
Claims11
A support structure, comprising:
- a connection unit, having an upper and a lower ends;
- a base;
- at least a base hinge, each base hinge having a fixed shaft rod, a first end of the fixed shaft rod is pivotally connected to the lower end of the connection unit and a lower rack installed on the base, an inclined angle of the connection unit being able to be adjusted relative to the base, and a second end of the fixed shaft rod being inserted through at least one first lower shaft ring and at least one second lower shaft ring;
- at least a main hinge, each main hinge utilizing a moveable shaft rod to be respectively pivoted at the upper end of the connection unit and an upper rack connected with an object to be supported, an elevation angle of the upper rack being able to be adjusted relative to the connection unit;
- wherein the moveable shaft rod being inserted through at least one first upper shaft ring and at least one second upper shaft ring capable of being linked with the moveable shaft rod, and the upper rack and the at least one first upper shaft ring being oppositely formed with a first adjustment slot and a first stop tenon, the first stop tenon being inserted in the first adjustment slot for serving as a stop for said upper rack;
- at least a first auxiliary connection member, installed in parallel with at least one side of the connection unit, an upper end and a lower end of each first auxiliary connection member being pivotally connected to an upper connection hole and a lower connection hole formed at peripheries of the at least one first upper and the at least one first lower shaft rings respectively, and a distance defined from the lower connection hole to a center point of the fixed shaft rod being greater than a distance defined from the upper connection hole to a center point of the moveable shaft rod;
- and
- at least a pair of second auxiliary connection members, disposed adjacent to the first auxiliary connection member, and installed in parallel and located on at least one side of the connection unit, an upper end and a lower end of each pair of second auxiliary connection members being respectively pivoted in a pair of upper and lower connection holes oppositely and radially formed on the at least one second upper and the at least one second lower shaft rings, and a distance between each pair of lower connection holes being the same as a distance between each pair of upper connection holes;
- wherein, when the connection unit is folded towards the base, the first auxiliary connection member reversely links the first upper shaft ring to rotate gradually altering a stopping location, and the pair of second auxiliary connection members enable the at least one second upper shaft ring to reversely rotate thus keeping an original angle and driving the upper rack to keep the original angle during a folding process.
Dependencies are inferred from the claim text.