Jack

• US 5,011,118 A
• Filed: 06/29/1990
• Issued: 04/30/1991
• Est. Priority Date: 07/03/1989
• Status: Expired due to Term

• Current Assignee: August Bilstein GmbH & Co. KG
• Original Assignee: August Bilstein GmbH & Co. KG
• Inventors: Brosius, Peter
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US07/546,107
• Time in Patent Office: 305 Days
• Field of Search: 248/99, 254/126, 254/8 B, 254/133, 254/134, 254/101, 254/DIG. 4, 16/387, 29/11
• US Class Current: 254/126
• CPC Class Codes: B66F 3/12 comprising toggle levers lazy-tongs mechanisms B66F3/22
• CPC Class Codes: Y10S 254/04 Object engaging heads for jacks

Abstract

The invention concerns a jack (10) with at least one leg (12) and an arm (16) that is connected to it, that can move up and down with its position varied by an adjusting mechanism (26), and that has a supporting plate (40) at its outer and free end that pivots on a horizontal shaft (52) on the arm. The supporting plate is secured to the shaft by at least one eye (50) that is stamped out of the supporting-plate component, whereby the ends of the eyes are in one piece with components of the supporting plate.

Claims

1. A jack comprising:

at least one leg;

an arm pivotably connected to said leg;

height adjusting means supported by said leg and connected to said arm for raising and lowering said arm;

said arm having an outer free end;

a supporting plate on said outer free end of said arm;

a horizontal shaft on said outer free end, said supporting plate pivoting on said horizontal shaft;

said supporting plate having at least one eye for securing said supporting plate to said shaft, said eye being stamped out of said supporting plate;

said eye having ends integral and in one piece with said supporting plate, said plate supporting a load stably and safely in every angular position of said plate that said plate may assume when supporting said load without damaging said plate even when said plate is loaded only on one side of said plate.

2. A jack as defined in claim 1, wherein said supporting plate and said shaft comprise a pre-assembled subassembly, said shaft being weldable to said arm.

3. A jack as defined in claim 1, wherein at least two separate eyes are spaced from each other and rest against parallel sides of said arm.

4. A jack as defined in claim 3, wherein said shaft has undulating depressions accommodating said eyes.

5. A jack as defined in claim 3, wherein said eyes are located on a bottom of said supporting plate.

6. A jack for a vehicle comprising:

at least one leg;

an arm pivotably connected to said leg;

height adjusting means supported by said leg and connected to said arm for raising and lowering said arm;

said arm having an outer free end;

a supporting plate on said outer free end of said arm;

a horizontal shaft on said outer free end, said supporting plate pivoting on said horizontal shaft;

said supporting plate having at least one eye for securing said supporting plate to said shaft, said eye being stamped out of said supporting plate;

said eye having ends integral and in one piece with said supporting plate, said supporting plate supporting a vehicle stably and safely in every angular position of said plate that said plate may assume when supporting said vehicle without damaging said plate even when said plate is loaded only on one side of said plate by said vehicle.

7. A jack for a vehicle comprising:

at least one leg;

an arm pivotably connected to said leg;

height adjusting means supported by said leg and connected to said arm for raising and lowering said arm;

said arm having an outer free end;

a supporting plate on said outer free end of said arm;

a horizontal shaft on said outer free end, said supporting plate pivoting on said horizontal shaft;

said supporting plate having at least one eye for securing said supporting plate to said shaft, said eye being stamped out of said supporting plate;

said eye having ends integral and in one piece with said supporting plate, said supporting plate supporting a vehicle stably and safely in every angular position of said plate that said plate may assume when supporting said vehicle without damaging said plate even when said plate is loaded only on one side of said plate by said vehicle;

said supporting plate and said shaft comprising a pre-assembled subassembly, said shaft being weldable to said arm;

at least two separated eyes resting against parallel sides of said arm;

said shaft having undulating depressions accommodating said eyes;

said eyes being on a bottom of said supporting plate.