ELEVATABLE SUPPORTING DEVICE

• US 20200132246A1
• Filed: 10/30/2019
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Syncmold Enterprise Corp.
• Original Assignee: Syncmold Enterprise Corp.
• Inventors: YEN, Ching-Hui, YEH, Chien-Cheng, HUANG, Chun-Hao
• Granted Patent: US 11,112,056 B2
• Time in Patent Office: Days
• CPC Class Codes: F16M 11/046 adapted to upward-downward translation movement
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 11/18 with mechanism for moving the apparatus relatively to the stand
• CPC Class Codes: F16M 11/2014 around a vertical axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 11/26 by telescoping, with or without folding details concerning the constructional features of telescoping parts only F16B7/10
• CPC Class Codes: F16M 13/022 repositionable
• CPC Class Codes: F16M 2200/022 by friction
• CPC Class Codes: F16M 2200/047 for balancing translational movement of the head

Abstract

An elevatable supporting device for bearing a display is provided. The elevatable supporting device comprises an upright, an energy storage element, and a bearing module. The upright includes a first surface and a second surface which is non-parallel to the first surface. The energy storage element abuts against the first surface and the second surface and includes a first arm providing a first resistance and a second arm providing a second resistance. A first included angle is defined between the first arm and the second arm. When the energy storage element moves from the highest position to the lowest position, the first included angle decreases so that one of the first resistance and the second resistance may increase in order to maintain a total effective resistance along the first axis. Accordingly, the display may be able to stop at any position between the highest position and the lowest position.

Claims

1. An elevatable supporting device for bearing a display, the elevatable supporting device comprising:

an upright extending along a first axis and including an accommodating space, a first surface, and a second surface non-parallel to the first surface, wherein the accommodating space is formed between the first surface and the second surface, and a highest position and a lowest position are defined on the first axis;

an energy storage element being movably disposed in the accommodating space and abutting against the first surface and the second surface, wherein the energy storage element includes a connecting section, a first arm extending from the connecting section and providing a first resistance, and a second arm extending from the connecting section and providing a second resistance; and

a bearing module connecting to the display and the energy storage element and sliding along the first axis with respect to the upright;

wherein a first included angle is defined between the first arm and the second arm, a second included angle is defined between the first arm and the first surface, a third included angle, which is constant and smaller than the first included angle, is defined between the first surface and the first axis, a fourth included angle is defined between the second arm and the second surface, and a fifth included angle, which is constant and smaller than the first included angle, is defined between the second surface and the first axis; and

wherein when the energy storage element moves from the highest position to the lowest position, the first included angle between the first arm and the second arm of the energy storage element continuously decreases so that at least one of the first resistance and the second resistance continuously increases and at least one of the second included angle and the fourth included angle continuously decreases, conversely, when the energy storage element moves from the lowest position to the highest position, the first included angle between the first arm and the second arm of the energy storage element continuously increases so that at least one of the first resistance and the second resistance continuously decreases and at least one of the second included angle and the fourth included angle continuously increases;

thereby, a total effective resistance on the first axis is substantially constant, and when an external force is applied, the energy storage element, the bearing module, and the display move simultaneously, whereas when the external force is removed, the energy storage element, the bearing module, and the display are in a static equilibrium status so that the display is able to stop at any position between the highest position and the lowest position.

2. The elevatable supporting device as claimed in claim 1, wherein an interval on a second axis perpendicular to the first axis is defined between the first surface and the second surface, wherein a width of the interval continuously decreases from the highest position to the lowest position.

3. The elevatable supporting device as claimed in claim 2, wherein a projected length of the first arm projected on the first axis continuously increases from the highest position to the lowest position.

4. The elevatable supporting device as claimed in claim 3, wherein the first resistance forms a first effective resistance on the first axis and the second resistance forms a second effective resistance on the first axis, wherein the total effective resistance is a sum of the first effective resistance and the second effective resistance.

5. The elevatable supporting device as claimed in claim 4, wherein the energy storage element has a first follower disposed on the first arm and a second follower disposed on the second arm, wherein the first follower contact with the first surface and the second follower contact with the second surface.

6. The elevatable supporting device as claimed in claim 5, wherein the upright has a sliding module disposed along the first axis, and the bearing module connects to the sliding module to slide with respect to the upright so that the first arm slides along the first surface and the second arm slides along the second surface.

7. The elevatable supporting device as claimed in claim 6, wherein the bearing module connects to the connecting section.

8. The elevatable supporting device as claimed in claim 7, wherein the first surface and the second surface are symmetrical with each other with respect to the first axis.

9. The elevatable supporting device as claimed in claim 7, wherein the first surface and the second surface are non-symmetrical with each other with respect to the first axis in which the second surface is parallel to the first axis.

10. The elevatable supporting device as claimed in claim 1, wherein the first arm, the second arm, and the connecting section integrally form a torsion spring, wherein the connecting section has a winding portion, and the bearing module has a shaft passing through the winding portion.

11. The elevatable supporting device as claimed in claim 1, wherein the energy storage element is a V-shaped elastic steel plate which is integrally formed.

12. The elevatable supporting device as claimed in claim 11, wherein the bearing module has two shafts disposed on opposite sides of the connecting section to clamp the connecting section.

13. The elevatable supporting device as claimed in claim 11, wherein the bearing module has at least one shaft and a block, and wherein the at least one shaft and the connecting section are secured to the block.

14. The elevatable supporting device as claimed in claim 13, wherein the bearing module further has a thread and a nut for securing the connecting section to the block, and wherein the at least one shaft passes through and is secured to the block.

15. The elevatable supporting device as claimed in claim 1, wherein the connecting section is a supporting block connecting to the bearing module, wherein the supporting block has a first inclined plane for the first arm partially attaching thereto and a second inclined plane for the second arm partially attaching thereto.

16. The elevatable supporting device as claimed in claim 15, wherein the first arm and the second arm are flat springs respectively.

17. The elevatable supporting device as claimed in claim 1, wherein the bearing module further comprises a friction unit disposed adjacent to the upright for providing a normal force towards the upright, and a kinetic friction force is generated between the friction unit and the upright when the bearing module moves with respect to the upright.

18. The elevatable supporting device as claimed in claim 17, wherein the friction unit has a friction element and a screw abutting against the friction element towards the upright so that the normal force is able to be adjusted according to an extent of the screw abutting against the friction element.