Locking stabilizer jack

Patent metadata

Field	Value
Publication number	US-9701285-B2
Application number	US-201615010844-A
Country	US
Kind code	B2
Filing date	Jan 29, 2016
Priority date	Jan 29, 2015
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A stabilizing jack includes a base frame and a slide frame and a leg connected to the base frame and to the slide frame. The leg may be selectively extended into contact with a mating surface and retracted from the extended position. Locking pins disposed on either of the base frame and the slide frame may selectively engage with pin-receiving apertures on the other of the base frame and the slide frame when the leg is placed in the extended position and disengaged from the apertures when the leg is retracted from the extended position.

First claim

The invention claimed is:

1. A stabilizing jack comprising:
a base frame securable to a vehicle;
a slide frame in translating engagement with the base frame, the slide frame translatable in a first direction with respect to the base frame and the slide frame translatable in a second direction with respect to the base frame;
a leg having a first end in pivotal and translating engagement with the slide frame and a second end engageable with a mating surface;
a brace having a first end in pivotal engagement with the base frame and a second end in pivotal engagement with the leg intermediate the first end of the leg and the second end of the leg; and
a locking pin connected to one of the base frame and the slide frame, the locking pin being selectively engageable and disengageable with a corresponding aperture defined by the other of the base frame and the slide frame in response to translation of the slide frame with respect to the base frame in the second direction.

2. The stabilizing jack of claim 1 further comprising:
a trunnion connected between the first end of the leg and the slide frame, the trunnion in pivotal engagement with the first end of the leg and the trunnion in sliding engagement with the slide frame.

3. The stabilizing jack of claim 2 further comprising a drive screw having a threaded section, the drive screw in rotational and substantially non-translational engagement with the slide frame and the threaded section in threaded engagement with the trunnion.

4. The stabilizing jack of claim 1 further comprising:
a second leg having a first end in pivotal and translating engagement with the slide frame and a second end engageable with a mating surface; and
a second brace having a first end in pivotal engagement with the base frame and a second end in pivotal engagement with the second leg intermediate the first end of the second leg and the second end of the second leg.

5. The stabilizing jack of claim 4 further comprising a second trunnion connected between the first end of the second leg and the slide frame, the second trunnion in pivotal engagement with the first end of the second leg and the second trunnion in sliding engagement with the slide frame.

6. The stabilizing jack of claim 5 , the drive screw further having a second threaded section, the second threaded section in threaded engagement with the second trunnion, one of the threaded section and the second threaded section comprising a right-handed thread and the other of the threaded section and the second threaded section comprising a left-handed thread.

7. The stabilizing jack of claim 6 further comprising a second locking pin connected to one of the base frame and the slide frame, the second locking pin being selectively engageable and disengageable with a corresponding aperture defined by the other of the base frame and the slide frame in response to translation of the slide frame with respect to the base frame in the second direction.

8. The stabilizing jack of claim 7 , the locking pin and the second locking pin connected to the same one of the base frame and the slide frame.

9. The stabilizing jack of claim 7 , the locking pin and the second locking pin connected to opposite ones of the base frame and the slide frame.

10. The stabilizing jack of claim 6 , the locking pin comprising a shank received in a mating aperture defined by the one of the base frame and the slide frame.

11. The stabilizing jack of claim 10 further comprising a retaining ring receiving the shank of the locking pin.

12. The stabilizing jack of claim 6 further comprising a wear tab disposed between a surface of the base frame and an adjacent surface of the slide frame.

13. The stabilizing jack of claim 12 , the wear tab attached to one of the base frame and the slide frame.

14. The stabilizing jack of claim 6 , the locking pin and the corresponding aperture configured to limit translation of the slide frame with respect to the base frame in the first direction when the locking pin is engaged with the corresponding aperture.

15. The stabilizing jack of claim 6 , the locking pin and the corresponding aperture configured to substantially preclude translation of the slide frame with respect to the base frame in the first direction when the locking pin is engaged with the corresponding aperture.

16. A stabilizing jack comprising:
a base frame securable to a vehicle;
a slide frame in translating engagement with the base frame, the slide frame translatable in a first direction with respect to the base frame and the slide frame translatable in a second direction with respect to the base frame;
a first leg having a first end in pivotal and translating engagement with the slide frame and a second end engageable with a mating surface;
a first brace having a first end in pivotal engagement with the base frame and a second end in pivotal engagement with the first leg intermediate the first end of the first leg and the second end of the first leg;
a second leg having a first end in pivotal and translating engagement with the slide frame and a second end engageable with a mating surface;
a second brace having a first end in pivotal engagement with the base frame and a second end in pivotal engagement with the second leg intermediate the first end of the second leg and the second end of the second leg; and
a locking pin connected to one of the base frame and the slide frame, the locking pin being selectively engageable and disengageable with a corresponding aperture defined by the other of the base frame and the slide frame in response to translation of the slide frame with respect to the base frame in the second direction.

17. The stabilizing jack of claim 16 further comprising:
a first trunnion connected between the first end of the first leg and the slide frame, the first trunnion in pivotal engagement with the first end of the first leg and the first trunnion in sliding engagement with the slide frame; and
a second trunnion connected between the first end of the second leg and the slide frame, the second trunnion in pivotal engagement with the first end of the second leg and the second trunnion in sliding engagement with the slide frame.

18. The stabilizing jack of claim 17 further comprising a drive screw having a first threaded section and a second threaded section, one of the first threaded section and the second threaded section comprising a right-handed thread and the other of the first threaded section and the second threaded section comprising a left-handed thread, the drive screw in rotational and substantially non-translational engagement with the slide frame, the first threaded section in threaded engagement with the first trunnion, and the second threaded section in threaded engagement with the second trunnion.

19. The stabilizing jack of claim 18 , the locking pin and the corresponding aperture configured to limit translation of the slide frame with respect to the base frame in the first direction when the locking pin is engaged with the corresponding aperture.

20. The stabilizing jack of claim 18 , the locking pin and the corresponding aperture configured to substantially preclude translation of the slide frame with respect to the base frame in the first direction when the locking pin is engaged with the corresponding aperture.

Assignees

• Lippert Components Inc

Inventors

• Fiwek Michael J
• Albrecht Jeffrey K
• Greer Christopher S

Classifications

• B60S9/06 Primary

  of screw-and-nut type · CPC title