Granted Patent B2

US 7,290,977 · App. 11/075,926 · Granted Nov 6, 2007

Abstract

Claims (31)

1. An actuator operated apparatus for mounting and hydraulically coupling a working attachment to a mounting plate of a work vehicle comprising:

a pair of locking hydraulic actuators configured to receive a portion of pressurized fluid from the work vehicle to actuate a pair of wedges that move to one of lock and unlock the working attachment and the mounting plate;

a first hydraulic coupling block mountable to the working attachment and configured to house at least one hydraulic coupler;

a second hydraulic coupling block having a top surface and a bottom surface mountable to the mounting plate and configured to house at least one hydraulic coupler the at least one hydraulic coupler being adjacent the top surface of the second hydraulic coupling block and extending between the top and bottom surfaces of the second hydraulic coupling block; and

a coupling hydraulic actuator configured to receive a remaining portion of the pressurized fluid from the work vehicle to actuate the second coupling block to one of engage and disengage the at least one hydraulic coupler and a bottom surface of the first coupling block with the at least one hydraulic coupler and the top surface of the second coupling block.

2. The apparatus of claim 1 , wherein the coupling hydraulic actuator comprises a hydraulic cylinder including:

a rod fixable to the mounting plate; and

a double acting piston coupled to the rod.

3. The apparatus of claim 1 and further comprising a first check valve configured to provide the remaining portion of pressurized fluid to an upper end of the hydraulic cylinder to slidably move the second coupling block to engage the first coupling block.

4. The apparatus of claim 3 and further comprising a second check valve configured to provide the remaining portion of pressurized fluid to a lower end of the hydraulic cylinder to disengage the second coupling block from the first coupling block.

5. The apparatus of claim 4 and further comprising a cartridge valve configured to direct the portion of pressurized fluid to lock and unlock the working attachment and the mounting plate and configured to direct the remaining portion of the pressurized fluid through one of the first check valve and the second check valve.

6. The apparatus of claim 1 , wherein the first coupling block comprises a dummy block configured to cover the at least one hydraulic coupler of the second coupling block if the working attachment is a passive working attachment.

7. The apparatus of claim 6 , wherein the dummy block includes a foam gasket to prevent dust from contaminating hydraulic fluid.

8. The apparatus of claim 1 , wherein the first coupling block houses at least one male hydraulic coupler the second coupling block houses at least one female hydraulic coupler.

9. The apparatus of claim 1 , wherein the first coupling block is further configured to house a male electrical connector and the second coupling block is further configured to house a female electrical connector.

10. The apparatus of claim 9 , wherein the male electrical connector and the female electrical connector comprise a seven pin electrical connector.

11. The apparatus of claim 1 , wherein the pair of wedges are locked and the first coupling hydraulic block and the second coupling block are engaged substantially simultaneously.

12. The apparatus of claim 1 , wherein the pair of wedges are unlocked and the first coupling block and the second coupling block are disengaged substantially simultaneously.

13. An actuator operated apparatus for mounting and hydraulically coupling a working attachment to a mounting plate of a work vehicle comprising:

a first hydraulic coupling block locatable on the working attachment;

a second hydraulic coupling block having a top surface and a bottom surface, the second hydraulic coupling block being mountable to the mounting plate and configured to house at least one hydraulic coupler, the hydraulic coupler being adjacent the top surface and extending between the top and bottom surfaces; and

a coupling hydraulic actuator coupled to the second coupling block and configured to receive a portion of a pressurized fluid from the work vehicle to actuate the second coupling block for one of engaging and disengaging the top surface of the second coupling block with a bottom surface of the first coupling block.

14. The apparatus of claim 13 , wherein the first coupling block comprises at least one hydraulic coupler.

15. The apparatus of claim 14 , wherein the coupling hydraulic actuator actuates the second coupling block for one of engaging and disengaging the at least one hydraulic coupler of the second coupling block and the at least one hydraulic coupler of the first coupling block.

16. The apparatus of claim 13 , wherein the first coupling block and the second coupling block each have at least one electrical connector.

17. The apparatus of claim 13 , wherein the first coupling block comprises a dummy block configured to cover the at least one hydraulic coupler of the second coupling block if the working attachment is a passive working attachment.

18. The apparatus of claim 13 and further comprising a pair of locking hydraulic cylinders configured to receive a remaining portion of the pressurized fluid from the work vehicle to actuate a pair of wedges that slidably move to one of lock and unlock the working attachment and the mounting plate, the pair of locking hydraulic cylinders and the coupling hydraulic cylinder are actuated substantially simultaneously.

19. In combination with a quick attachment plate for mounting a working attachment to a work vehicle, wherein the working attachment requires hydraulic power, the attachment plate having a pair of coupling wedges at opposite ends thereof operated by a pair of hydraulic locking cylinders receiving pressurized hydraulic fluid, bell crank members at opposite ends of the attachment plate are coupled to a respective wedge, whereby upon actuation of the coupling wedges the respective wedges can be moved between a locking position and a release position, the improvement comprising:

a hydraulic coupler connecting mechanism for connecting a first hydraulic coupling block having lines for providing hydraulic power to the working attachment with a second hydraulic coupling block having a top surface and a bottom surface and having lines for carrying hydraulic pressure from a pump on the work vehicle, the first coupling block having a first hydraulic coupler section to mate with a second hydraulic coupler section on the second hydraulic coupling block, the second hydraulic coupler section having at least one hydraulic coupler adjacent the top surface and extending between the top and bottom surfaces, the second coupling block being operated by a coupling hydraulic actuator receiving a portion of the pressurized hydraulic fluid and supported by the quick attachment plate to one of engage and disengage the top surface of the second coupling block with a bottom surface of the first coupling block.

20. The apparatus of claim 19 , wherein the pair of bell cranks are coupled to a pair of respective levers to alternatively manually operate the pair of coupling wedges.

21. The apparatus of claim 19 and further comprising: a first check valve configured to provide the portion of pressurized fluid to the coupling hydraulic actuator to move the second coupling block to engage the first coupling block; and a second check valve configured to provide the portion of pressurized fluid to the coupling hydraulic actuator to move the second coupling block to disengage from the first coupling block.

Assignments (15)