Extendable jack tool and jack assembly employing the same

Patent metadata

Field	Value
Publication number	US-9352945-B2
Application number	US-201414514459-A
Country	US
Kind code	B2
Filing date	Oct 15, 2014
Priority date	Dec 13, 2013
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

The present invention in one or more embodiments provides a jack tool including a first shaft including a first tail with a first protrusion connected to a first spring, and a second shaft including a second head with a second aperture to detachably receive the first protrusion of the first shaft upon a force on the first spring translated from a force of different direction on the first protrusion.

First claim

What is claimed is:

1. A jack tool comprising:
a first shaft including a first tail-body-portion connecting a first protrusion and a second tail-body-portion connecting a first spring; and
a second shaft including an aperture from which the first protrusion is releasable when a first slanted-surface of the first tail-body-portion pushes a second slanted-surface of the second tail-body-portion to impart a force on the first spring translated from a force of different direction on the first protrusion.

2. The jack tool of claim 1 , wherein the first shaft further includes a first head and a first body, the first body being positioned between the first head and the first tail-body-portion, the first head being of a cross-section different from that of the first tail-body-portion.

3. The jack tool of claim 1 , wherein the first protrusion is integral in material to an outer surface of the first tail-body-portion.

4. The jack tool of claim 1 , wherein the second shaft includes a second head, a second tail and a second body, the aperture being positioned on the second head, the second body being positioned between the second head and the second tail, and the second head being of a cross-section different from that of the second tail.

5. The jack tool of claim 4 , wherein the second head, the second body and the second tail are integral in material to one another.

6. The jack tool of claim 1 , wherein the second tail-body-portion is positioned between the first spring and the first tail-body-portion.

7. The jack tool of claim 6 , wherein the first tail-body-portion includes a first tail-body-top-wall and a first tail-body-bottom-wall, the first tail-body-top-wall being positioned between the first protrusion and the first tail-body-bottom-wall, the first tail-body-top-wall having a longer longitudinal length than the first tail-body-bottom-wall.

8. The jack tool of claim 1 , wherein the first tail-body-portion extends beyond the first protrusion along a longitudinal direction of the first shaft to be further away from the first spring.

9. A jack tool comprising:
a shaft including a head with an aperture and a tail with a protrusion connected to a spring, wherein the tail further includes a tail body positioned between and connecting the protrusion and the spring, wherein the tail body includes a first tail-body-portion having a first slanted-surface and a second tail-body-portion having a second slanted-surface, and wherein the first slanted-surface is positioned to push the second slanted-surface to impart a force on the spring translated from a force of different direction on the protrusion, such that the shaft is releasable from a second shaft when the protrusion is released from a second aperture of the second shaft upon the force of different direction imparted on the protrusion.

10. The jack tool of claim 9 , wherein the second tail-body-portion is positioned between the spring and the first tail-body-portion.

11. The jack tool of claim 9 , wherein the first tail-body-portion includes a first tail-body-top-wall and a first tail-body-bottom-wall, the first tail-body-top-wall being positioned between the protrusion and the first tail-body-bottom-wall, the first tail-body-top-wall having a longer longitudinal length than the first tail-body-bottom-wall.

12. The jack tool of claim 9 , wherein the head, the body and the tail are integral in material to one another.

13. The jack tool of claim 9 , wherein the head is of a cross-section different from that of the tail.

14. The jack tool of claim 9 , wherein the head is of a material different from the tail.

15. The jack tool of claim 9 , wherein at least one of the head and the tail is of a material different from the body.

16. The jack tool of claim 9 , wherein the first tail-body-portion extends beyond the protrusion along a longitudinal direction of the shaft to be further away from the spring.

17. A jack assembly comprising:
a jack tool including first, second and third shafts, the first shaft including a first head with a first aperture and a first tail with a first protrusion connected to a first spring, the second shaft including a second tail with a second protrusion connected to a second spring and a second head with a second aperture to detachably receive the first tail, and the third shaft including a third head with a third aperture to detachably receive the second tail, wherein at least one of the first and second tails includes first and second tail-body-portions, and wherein a first slanted-surface of the first tail-body-portion is to push a second slanted-surface of the second tail-body-portion upon a force respectively imparted onto the at least one of the first and second springs while the force is translated from a force of different direction on the at least one of the first and second protrusions; and
a jack detachably connectable to the jack tool.

18. The jack assembly of claim 17 , wherein the third tail or the first head includes a hook for connection to the jack.

19. The jack assembly of claim 17 , wherein the third tail or the first head includes a handle for use by an operator.

20. The jack tool of claim 17 , wherein the first tail-body-portion extends beyond the first protrusion along a longitudinal direction of the first shaft to be further away from the first spring.

Assignees

• Ford Global Tech Llc

Inventors

• Liu Brenna
• Ge Wendy
• Xu Jack

Classifications

• Y10T74/20738

  Extension · CPC title

• B66F3/12

  comprising toggle levers (lazy-tongs mechanisms B66F3/22) · CPC title

• B66F1/02 Primary

  with locking elements, e.g. washers, co-operating with posts · CPC title

• B66F13/00 Primary

  Common constructional features or accessories · CPC title