JACKING DEVICE

• US 20130220043A1
• Filed: 08/15/2012
• Published: 08/29/2013
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: First Dome Corporation
• Original Assignee: First Dome Corporation
• Inventors: DAI, WAY HAN, HSU, AN SZU, MAI, CHIEN CHENG
• Granted Patent: US 9,441,714 B2
• Time in Patent Office: Days
• US Class Current: 74/101
• CPC Class Codes: F16H 21/44 for conveying or interconverting oscillating or reciprocating motions
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: Y10T 74/18912 Compound lever and slide

Abstract

A jacking device is provided to push an object for rotation and upward or downward movement. The jacking device includes a combination of a slave arm and a link arm. The slave arm includes a first end capable of producing rotation and linear movement and a second end pivoted to the link arm, The link arm includes a fixation end disposed on a base and a free end. When the first end of the slave arm is received with an action force, the second end of the slave arm is forced to push the link arm for rotation, and the free end of the link arm is forced to motion between a first position and a second position so as to push m object for rotation and upward or downward movement.

Claims

1. A jacking device, comprising:

a combination of a slave arm and a link arm;

the slave arm comprising a first end and a second end pivoted to the link arm;

the link arm comprising a fixation end and a free end; and

the second end of the slave arm capable of moving the link arm, so that the free end of the link arm is motioned between a first position and a second position.

2. The jacking device as claimed in claim 1, wherein the first end of the slave arm is shifted along a reference axis.

3. The jacking device as claimed in claim 1, wherein the second end of the slave arm is rotatably pivoted at a position located between the fixation end and the free end of the link arm.

4. The jacking device as claimed in claim 1, wherein the second end of the slave arm is pivoted at a position to be close to the fixation end of the link arm.

5. The jacking device as claimed in claim 1, wherein a distance which is measured from a pivot position of the second end of the slave arm and the link arm to the fixation end of the link arm is one-third of a length of the link arm.

6. The jacking device as claimed in claim 1, wherein the first end of the slave arm and the fixation end of the link arm are disposed on a base.

7. The jacking device as claimed in claim 6, wherein the base is configured with a rail along which the first end of the slave arm is motioned.

8. The jacking device as claimed in claim 1, wherein the first end of the slave arm is rotatably disposed on a slide portion.

9. The jacking device as claimed in claim 8, wherein the slide portion is freely movably installed on a base which is configured with a rail, and the slide portion is installed in the rail.

10. The jacking device as claimed in claim 1 further comprising another slave arm and a connecting portion connected between the two slave arms, so that the two slave arms and the connecting portion are mutually formed by type of symmetry.

11. The jacking device as claimed in claim 1 further comprising another link arm and a connecting portion connected between the two link arms, so that the two link arms and the connecting portion are mutually formed by type of symmetry.

12. The jacking device as claimed in claim 6, wherein the base is configured with rails formed by type of symmetry.

13. The jacking device as claimed in claim 9, wherein the base is configured with rails formed by type of symmetry.

14. The jacking device as claimed in claim 1, wherein an elastic device is configured between the first end of the slave arm and the fixation end of the link arm.

15. The jacking device as claimed in claim 14, wherein the elastic device is formed by type of a helical spring, comprising two ends respectively fixed at positions which are located between the first end of the slave arm and the fixation end of the link arm.

16. The jacking device as claimed in claim 15, wherein the first end of the slave arm is pivoted to a slide portion provided with a head end, the fixation end of the link arm is configured with a fixation portion provided with a head end thereon, and the two ends of the elastic device are respectively fixed on the head end of the slide portion and the head end of the fixation portion.

17. The jacking device as claimed in claim 1, wherein the slave arm is formed by type of a laminate article.

18. The jacking device as claimed in claim 1, wherein the link arm is formed by type of a laminate article.

19. The jacking device as claimed in claim 1, wherein the free end of the link arm is configured with a roller.

20. The jacking device as claimed in claim 1, wherein an elastic device is configured at a pivot position of the second end of the slave arm and the link arm, and the elastic device includes two ends respectively fixed on the first end of the slave arm and the link arm.

21. The jacking device as claimed in claim 20, wherein the elastic device is formed by type of a torsion spring.

22. The jacking device as claimed in claim 1, wherein an elastic device is configured at a position located between the first end of the slave arm and a slide portion.

23. The jacking device as claimed in claim 1, wherein an elastic device is configured at a position located between the fixation end of the link arm and a fixation portion.

24. The jacking device as claimed in claim 1, wherein an elastic device is configured at a position located between the fixation end of the link arm and a base.

25. The jacking device as claimed in claim 1, wherein the slave arm and the link arm are assembled with a machine body.

26. The jacking device as claimed in claim 25, wherein the machine body formed by type of an electric apparatus comprises a moving module and a system module provided with a keyboard zone, and the moving module is motionable on the system module.

27. The jacking device as claimed in claim 26, wherein the moving module is a display screen.

28. The jacking device as claimed in claim 26, wherein the system module is motioned along a groove track, disposed on the system module.

29. The jacking device as claimed in claim 6, wherein the base is arranged on a system module.

30. The jacking device as claimed in claim 7, wherein the base and the rail are arranged on a system module.

31. The jacking device as claimed in claim 26, wherein a support arm is configured between the moving module and the system module, and the support arm comprises a first end rotatably pivoted on the moving module and a second end rotatably pivoted on the system module.

32. The jacking device as claimed in claim 31, wherein the first end of the support arm is pivoted to a side region of the moving module.

33. The jacking device as claimed in claim 31, wherein the second end of the support arm and the first end of the slave arm are formed by type of connection.

34. The jacking device as claimed in claim 31, wherein the second end of the support arm and the first end of the slave arm are formed by type of coaxial pivot.

35. The jacking device as claimed in claim 31, wherein a constant force spring is assembled between the moving module and the system module.