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1. WO2019051070 - BUCKET CLEANOUT

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

WHAT IS CLAIMED IS:

1. A bucket cleanout apparatus (420; 520) configured to aid in removal of material from a bucket (405; 505) of a power machine, the bucket cleanout apparatus comprising:

a cleanout arm assembly (410; 510) configured to be at least partially positioned within the bucket;

a pivot attachment mechanism (440; 540) configured to pivotally mount the cleanout arm assembly to a first support structure such that the cleanout arm assembly is capable of pivoting within the bucket;

a mount (450; 550) coupled to a second support structure and configured to couple the cleanout arm assembly to the second support structure, wherein the cleanout arm assembly being coupled to the second support structure by the mount causes the cleanout arm assembly to move relative to the bucket between a first position and a second position when the bucket is moved relative to an arm (434; 534) of the power machine to thereby aid in removal of material from the bucket.

2. The bucket cleanout apparatus of claim 1, wherein the cleanout arm assembly (410; 510) comprises a first arm (425; 525), a second arm (430; 530), and a cross-member (435; 535) extending between the first arm and the second arm.

3. The bucket cleanout apparatus of claim 2, wherein at least portions of the first arm (425; 525) and the second arm (430; 530) of the cleanout arm assembly (410; 510) are configured to be respectively disposed adjacent to opposite side walls (474, 476; 574; 576) of the bucket (405; 505).

4. The bucket cleanout apparatus of claim 3, wherein the cross-member (435; 535) of the cleanout arm assembly (410; 510) extends between the first arm (425; 525) and the second arm (430; 535) substantially across a width of the bucket.

5. The bucket cleanout apparatus of claim 2, wherein each of the first arm (425; 525) and the second arm (430; 530) of the cleanout arm assembly (410; 510) further comprises a first arm portion (426, 431; 526, 531) and a second arm portion (427, 432; 527, 532).

6. The bucket cleanout apparatus of claim 5, wherein the first support structure is the bucket (405) and wherein each of the first arm (425) and the second arm (430) includes a pivot attachment feature (428) positioned between the first and second arm portions, the pivot attachment features of the first and second arms configured to pivotally mount the cleanout arm assembly to the bucket with the pivot attachment mechanism (440).

7. The bucket cleanout apparatus of claim 6, wherein the pivot attachment mechanism (440) comprises first and second spring-loaded bracket assemblies (442; 444) each configured to be positioned on sides of an implement carrier (472) to which the bucket (405) is attached and to apply bias forces to the cleanout arm assembly.

8. The bucket cleanout apparatus of claim 7, wherein the mount (450) further comprises a first linking mechanism (456) configured to couple the second arm portion (427) of the first arm (425) to the arm (434) of the power machine, and a second linking mechanism (458) configured to couple the second arm portion (432) of the second arm (430) to the arm (434) of the power machine, wherein in a first bucket position the first and second linking mechanisms (456; 458) are not under tension and the first and second spring loaded bracket assemblies (442; 444) maintain the cleanout arm assembly (410) in the first position relative to the bucket (405), and wherein rollback movement of the bucket (405) toward a second bucket position places the first and second linking mechanisms (456; 458) under tension such that further roll back movement of the bucket causes the first and second linking mechanisms (456; 458) to apply counteracting forces to the cleanout arm assembly (410) to overcome the bias forces applied by the first and second spring-loaded bracket assemblies (442; 444) and thereby move the cleanout arm assembly (410) to the second position relative to the bucket (405).

9. The bucket cleanout apparatus of claim 5, wherein distal ends of the second arm portions (527; 532) of each of the first and second arms are pivotally attached to the first support structure by the pivot attachment mechanism (540).

10. The bucket cleanout apparatus of claim 9, wherein the first arm portions (526; 531) of each of the first and second arms (525; 530) of the cleanout arm assembly (510) are configured and shaped to be respectively disposed in the bucket (505) adjacent to opposite side walls (574; 576) of the bucket.

11. The bucket cleanout apparatus of claim 10, and further comprising a middle support member (533) extending between the first and second arms (525; 530) and coupling the first and second arm portions of each arm.

12. The bucket cleanout apparatus of claim 11, wherein the mount (550) further comprises a first linking mechanism (556) configured to couple the second arm portion (527) of the first arm (525) to the second support structure of the power machine, wherein in a first bucket position the first linking mechanism (556) is not under tension, and wherein rollback movement of the bucket (505) toward a second bucket position places the first linking mechanism (556) under tension such that further roll back movement of the bucket causes the first linking mechanism (556) to move the cleanout arm assembly (510) to the second position relative to the bucket (505).

13. A power machine, comprising:

a power machine arm (434; 534);

a bucket (405; 505);

an implement carrier (472) coupling the bucket to the power machine arm;

a cleanout arm assembly (410; 510) at least partially positioned within the bucket; an attachment mechanism (440; 540) pivotally mounting the cleanout arm assembly (410; 510) to a first support structure such that the cleanout arm assembly pivots to move within the bucket; and

a mount (450; 550) coupled to a second support structure and configured to couple the cleanout arm assembly to the second support structure, wherein the cleanout arm assembly being coupled to the second support structure by the mount causes the cleanout arm assembly to move relative to the bucket between a first position and a second position when the bucket is moved relative to the arm (434; 534) of the power machine to thereby aid in removal of material from the bucket.

14. The power machine of claim 13, wherein the cleanout arm assembly (410; 510) comprises a first arm (425; 525), a second arm (430; 530), and a cross-member (435; 535) extending between the first arm and the second arm, and wherein at least portions of the first arm (425; 525) and the second arm (430; 530) of the cleanout arm assembly (410; 510) are respectively disposed adjacent to opposite side walls (474, 476; 574, 576) of the bucket (405; 505).

15. The power machine of claim 14, wherein the cross-member (435; 535) of the cleanout arm assembly (410; 510) extends between distal ends of the first arm (425; 525) and the second arm (430; 530) substantially across a width of the bucket.

16. The power machine of claim 15, wherein each of the first arm (425; 525) and the second arm (430; 530) of the cleanout arm assembly (410; 510) further comprises a first arm portion (426, 431; 526, 531) and a second arm portion (427, 432; 527, 532) coupled to the first arm portion.

17. The power machine of claim 16, wherein each of the first arm (425) and the second arm (425) includes a pivot attachment feature (428) positioned between the first and second arm portions, the pivot attachment features of the first and second arms pivotally mounting the cleanout arm assembly to the bucket with the attachment mechanism (440).

18. The power machine of claim 16, wherein the first arm portions (426, 431; 526, 531) of each of the first and second arms (425, 430; 525, 530) of the cleanout arm assembly (410; 510) are respectively disposed in the bucket (405; 505) adjacent to the opposite side walls (474, 476; 574, 576) of the bucket.

19. The power machine of claim 18, wherein the attachment mechanism (440) comprises first and second spring-loaded bracket assemblies (442; 444) each positioned on sides of the implement carrier (472) and configured to apply bias forces to the cleanout arm assembly (410) to maintain the cleanout arm assembly in the first position relative to the bucket (405).

20. The power machine of claim 19, wherein the mount (450) further comprises a first linking mechanism (456) coupling the second arm portion (427) of the first arm (425) to the arm (434) of the power machine, and a second linking mechanism (458) coupling the second arm portion (432) of the second arm (430) to the arm (434) of the power machine, wherein in a first bucket position the first and second linking mechanisms (456; 458) are not under tension and the first and second spring loaded bracket assemblies (442; 444) maintain the cleanout arm assembly (410) in the first position relative to the bucket (405), and wherein rollback movement of the bucket (405) toward a second bucket position places the first and second linking mechanisms (456; 458) under tension such that further roll back movement of the bucket causes the first and second linking mechanisms (456; 458) to apply counteracting forces to the cleanout arm assembly (410) to overcome the bias forces applied by the first and second spring-loaded bracket assemblies (442; 444) and thereby move the cleanout arm assembly (410) to the second position relative to the bucket (405).

21. The power machine of claim 18, wherein distal ends of the second arm portion (527; 532) of each of the first and second arms are pivotally attached to the first support structure by the pivot attachment mechanism (540).

22. The bucket cleanout apparatus of claim 21, and further comprising a middle support member (533) extending between the first and second arms (525; 530) and coupling the first and second arm portions of each arm.

23. The bucket cleanout apparatus of claim 22, wherein the mount (550) further comprises a first linking mechanism (556) configured to couple the second arm portion (527) of the first arm (525) to the second support structure of the power machine, wherein in a first bucket position the first linking mechanisms (556) is not under tension, and wherein rollback movement of the bucket (505) toward a second bucket position places the first linking mechanism (556) under tension such that further roll back movement of the bucket causes the first linking mechanism (556) to move the cleanout arm assembly (510) to the second position relative to the bucket (505).