Extendable jack tool and jack assembly employing the same

Patent metadata

Field	Value
Publication number	US-2015166316-A1
Application number	US-201414514459-A
Country	US
Kind code	A1
Filing date	Oct 15, 2014
Priority date	Dec 13, 2013
Publication date	Jun 18, 2015
Grant date	—

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 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.

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, the first head being of a cross-section different from that of the first tail.

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

4 . The jack tool of claim 1 , wherein the second shaft includes a second tail and a second body, the second body being positioned between the second head and the second tail, 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 first tail further includes a first tail body positioned between and connecting the first protrusion and the first spring.

7 . The jack tool of claim 6 , wherein the first tail body includes a first tail body portion having a first slanted surface and a second tail body portion having a second slanted surface, wherein the first slanted surface is positioned to push the second slanted surface upon the force imparted on the first protrusion.

8 . The jack tool of claim 7 , wherein the second tail body portion is positioned between the first spring and the first tail body portion.

9 . The jack tool of claim 8 , 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.

10 . 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, and 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, wherein the first slanted surface is positioned to push the second slanted surface upon a force imparted on the protrusion.

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

12 . The jack tool of claim 10 , 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.

13 . The jack tool of claim 10 , wherein the head is spaced apart from the tail with a body positioned in between the head and the tail.

14 . The jack tool of claim 13 , wherein the head, the body and the tail are integral in material to one another.

15 . The jack tool of claim 10 , wherein the head is of a cross-section different from that of the tail.

16 . The jack tool of claim 10 , wherein the head is of a material different from the tail.

17 . The jack tool of claim 13 , wherein at least one of the head and the tail is of a material different from the body.

18 . 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, a second shaft including a second tail and a second head with a second aperture to detachably receive the first tail, and a third shaft including a third head and a third tail with a third protrusion connected to a third spring, the third protrusion being detachably connectable to the first head via the third spring; and a jack detachably connectable to the jack tool.

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

20 . The jack assembly of claim 18 , wherein the second tail or the third head includes a handle for use by an operator.

Assignees

• Ford Global Tech Llc

Inventors

• Liu Brenna
• Ge Wendy
• Xu Jack

Classifications

• Y10T74/20738

  Extension · CPC title

• B66F1/02 Primary

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

• B66F3/12

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

• B66F13/00 Primary

  Common constructional features or accessories · CPC title