ROLLOVER PROTECTION CAB

• US 20100147603A1
• Filed: 12/15/2009
• Published: 06/17/2010
• Est. Priority Date: 12/16/2008
• Status: Active Grant

• Current Assignee: Daniel E. Davis
• Original Assignee: Daniel E. Davis
• Inventors: Garcia, Andres, Barrera, Ronaldo, Davis, Daniel E.
• Granted Patent: US 8,579,363 B2
• Time in Patent Office: Days
• US Class Current: 180/9.460
• CPC Class Codes: B60R 21/131 Protective devices for drivers in case of overturning of tractors means for preventing overturning or tipping of tractors B62D49/08
• CPC Class Codes: B62D 33/0617 for tractors or off-the-road vehicles protective devices for drivers in case of overturning of tractors B60R21/131
• CPC Class Codes: B62D 33/0633 pivotable about a vertical axis
• CPC Class Codes: E02F 9/166 movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins seats for vehicles in general B60N2/00

Abstract

Embodiments of the present invention generally relate to a rollover protection cab. In one embodiment, a rollover protection cab for a construction vehicle includes a structural frame defining cabin space for a vehicle operator. The structural frame is operable to substantially maintain the cabin space while withstanding a crushing load greater than or equal to twenty tons. The cab further includes a window; a door; a seat disposed in the cabin space; and controls for operating the vehicle disposed in the cabin space.

Claims

1. A rollover protection cab for a construction vehicle, comprising:

a structural frame defining cabin space for a vehicle operator, wherein the structural frame is operable to substantially maintain the cabin space while withstanding a crushing load greater than or equal to twenty tons;

a window;

a door;

a seat disposed in the cabin space; and

controls for operating the vehicle disposed in the cabin space.

2. The rollover protection cab of claim 1, wherein the window and corresponding portion of the structural frame are curved for allowing visibility in front and above the vehicle.

3. The rollover protection cab of claim 1, further comprising a mounting bracket and fasteners for connecting the cab to the vehicle, wherein the bracket and fasteners are operable to withstand the crushing load.

4. The rollover protection cab of claim 1, further comprising a mounting bracket and frangible fasteners for connecting the cab to the vehicle, wherein the fasteners are operable to fracture at a predetermined load.

5. The rollover protection cab of claim 1, further comprising a shield covering the window.

6. The rollover protection cab of claim 5, wherein the shield is transparent.

7. The rollover protection cab of claim 1, further comprising a shield and an actuator operable to pivot the shield between an engaged position and a disengaged position, wherein the shield covers the window in the engaged position.

8. The rollover protection cab of claim 1, wherein the structural frame is made from pipe.

9. The rollover protection cab of claim 1, further comprising a cab actuator operable to move the cab relative to the vehicle.

10. A crawler, comprising:

an undercarriage, comprising;

a lower frame; and

two tracks, each track, comprising;

a track frame coupled to the lower frame; and

a track shoe supported by the track frame and movable around the track frame; and

a main assembly supported by the undercarriage so that the main assembly may rotate relative to the undercarriage, the main assembly comprising;

a main frame;

a boom pivoted to the main frame; and

a rollover protection cab fastened to the main frame, the cab comprising;

a structural frame defining cabin space for an operator, wherein;

the structural frame is operable to substantially maintain the cabin space while withstanding at least a substantial portion of a weight of the crawler, and

the structural frame is independent from the main frame;

a window;

a door; and

a seat disposed in the cabin space.

11. The crawler of claim 10, wherein the structural frame is operable to withstand the entire weight of the crawler.

12. The crawler of claim 10, further comprising an arm or stick pivoted to the boom.

13. The rollover protection cab of claim 10, wherein the window and corresponding portion of the structural frame are curved for allowing visibility in front and above the crawler.

14. The rollover protection cab of claim 10, further comprising a mounting bracket and fasteners fastening the cab to the main frame, wherein the bracket and fasteners are operable to withstand the substantial weight portion.

15. The rollover protection cab of claim 10, further comprising a mounting bracket and frangible fasteners fastening the cab to the main frame, wherein the fasteners are operable to fracture at a predetermined load.

16. The rollover protection cab of claim 10, further comprising a shield covering the window.

17. The rollover protection cab of claim 16, wherein the shield is transparent.

18. The rollover protection cab of claim 10, further comprising a shield and an actuator operable to pivot the shield between an engaged position and a disengaged position, wherein the shield covers the window in the engaged position.

19. The rollover protection cab of claim 10, wherein the structural frame is made from pipe.

20. The rollover protection cab of claim 10, further comprising a cab actuator operable to move the cab relative to the main frame.