Combination scraper/loader

• US 5,172,499 A
• Filed: 06/25/1991
• Issued: 12/22/1992
• Est. Priority Date: 06/25/1991
• Status: Expired due to Fees

• Current Assignee: WEC Company (Oregon Tool Incorporated)
• Original Assignee: Gill Industries, Inc. (Gill Holding Co., Inc.)
• Inventors: Griffin, John
• Primary Examiner(s): Reese, Randolph A.
• Assistant Examiner(s): WARNICK IV, SPENCER K
• Application Number:
  US07/720,606
• Time in Patent Office: 546 Days
• Field of Search: 172/445.1, 172/810, 172/784, 172/243, 172/245, 172/250, 172/254, 172/253, 172/684.5, 37/117.5, 37/137, 37/138, 37/139, 37/DIG. 3, 37/DIG. 12, 37/DIG. 13
• US Class Current: 37/407
• CPC Class Codes: E02F 3/40 Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets devices to connect tools to arms or booms E02F3/3604; teeth therefor E02F9/28
• CPC Class Codes: E02F 3/4075 Dump doors; Control thereof
• CPC Class Codes: E02F 3/769 Graders, bulldozers, or the like comprising loaders

Abstract

A conmbination scraper/loader for mounting on the three-point hitch of a tractor which includes a back wall having a forwardly facing scraper blade and a rearwardly facing scraper blade at its lower edge, and two side walls extending from the back wall in spaced parallel relation. A bottom wall is pivotally mounted to the side walls and is operable between a first position at which it closes the bottom face of the scraper/loader, and a second pivoted position at which it opens such bottom face to permit collected dirt to be dumped therefrom. The scraper/loader 10 has a forward set and a rearward set of pivot pins for connection to the tractor in two separate dispositions, and an operating lever for releasing the pivoted bottom wall is provided which can be reached by the operator of the tractor in either disposition of the scraper/loader 10 on the tractor. The pivoted bottom wall may also be entirely removed from the scraper/loader so that it can be used as a conventional box scraper.

Claims

1. Apparatus for attachment to a vehicle having a three-point hitch and used to scoop, dig, scarify, scrape and/or load dirt, such apparatus comprising:

(a) a box member having two spaced parallel side walls open at one end thereof and a back wall extending between said side walls at the other end thereof to form a generally rectangular container for dirt;

(b) a generally flat bottom wall extending between said side walls and having a bound edge thereof located at said one open end of said side wall, said edge being formed for scooping or digging dirt;

(c) pivot means connecting said bottom wall to said box member to permit selective movement of said bottom wall between a closed position at which it extends between said side walls to form a bottom of said box member and at which said formed edge is adjacent said one open end of said box member and an open position at which it opens the area between said side walls to release dirt contained in said box member, said pivot means including means for detaching said bottom wall from said box member at the point where said bottom wall is connected to said box member;

(d) operating means operable between a first position holding said bottom wall at said closed position thereof with respect to said side walls and a second position to release said bottom wall and permit it to assume said open position thereof; and

(e) first mounting means adapted for mounting said box member to said three-point hitch of said vehicle to permit movement of said box member between a lower position at which said bottom wall edge engages the ground and said bottom wall is slanted upwardly therefrom, and a raised position at which said bottom wall is above the ground and slanted downwardly from said edge so as to retain dirt in said box member until said operating means is operated to said second position thereof.

2. Apparatus as defined in claim 1, wherein said back wall of said box member includes a first scraper blade fixed at the bottom edge of one face thereof and a second scraper blade fixed at the bottom edge of the other face thereof, whereby said back wall can act as a scraper when said vehicle is traveling in one direction and can be used as a box scraper when said vehicle is traveling in the opposite direction and said bottom wall is detached from said box member.

3. Apparatus as defined in claim 1, wherein said bottom wall includes two flanges extending upwardly a each side edge thereof.

4. Apparatus as defined in claim 3, wherein said pivot means includes a pivot rod extending outwardly from each said side wall of said box member, a pair of slots formed to extend laterally in said flanges, and selectively removable retaining pins for normally maintaining said pivot rods in said slots whereby said bottom wall is pivotal about said pivot rods, and for permitting said pivot rods to be removed from said slots to detach said bottom wall.

5. Apparatus as defined in claim 1, wherein said operating means includes a hook portion for selectively engaging and disengaging said bottom wall, and a handle portion for moving said hook portion between an engaging position at which it engages said bottom wall and holds it at said closed position thereof and a release position at which it releases said bottom wall to permit it to pivot to said open position thereof.

6. Apparatus as defined in claim 5, wherein said handle portion of said operating means extends upwardly above the top of said box member and in a direction toward said mounting means whereby said handle portion ca be grasped and operated by the driver of said vehicle.

7. Apparatus as defined in claim 2, wherein said apparatus includes second mounting means for mounting said box member to said vehicle so that said box member can be positioned with said first scraper blade engaging said ground and with said box member being slanted upwardly from said first scraper blade.

8. Apparatus as defined in claim 7, wherein said operating means includes a handle that has a first portion extending toward said open end of said box member and a second portion extending toward said other end of said box member whereby said handle can be reached by the operator of said vehicle when said box member is mounted to said vehicle by either said first mounting means or said second mounting means.

9. Apparatus as defined in claim 1, wherein the bottom edge of the inside face of said back wall is formed as a scraper blade, whereby said box member operates as a box scraper when said bottom wall is detached.

10. Apparatus as defined in claim 1, wherein said mounting means include a pair of spaced pivot rods mounted on said box member and located in a plane that extends vertically in spaced parallel relation to said back wall, said spaced pivot rods being adapted to be connected to the lowermost two points of said three-point hitch, and a third pivot rod located above said pair of spaced pivot rods and spaced from the plane thereof in a direction away from said back wall, said third pivot rod being adapted to be connected to the uppermost point of said three-point hitch.

11. Apparatus for attachment to a vehicle having a three-point hitch and used to scrape, dig, scarify, scoop and/or load dirt, said apparatus comprising

(a) a box member having a back wall with a scraper blade formed at the bottom edge of one face thereof, and a pair of side walls extending away from said one face of said back wall in spaced parallel relation to form a generally rectangular container for dirt;

(b) a generally flat bottom wall normally extending between said side walls along the bottom edges thereof, and having a front edge thereof formed as a scraper blade for scraping dirt;

(c) connecting means for connecting said bottom wall to said box member for selective movement between a closed position at which it extends between said side walls to form a bottom for said box member and at which said front edge is disposed away from said back wall and an open position at which it opens the area between said side walls to release any dirt contained in said box member, said connecting means including quick disconnect means for detaching said bottom wall from said box member whereby said box member is capable of operating as a box scraper;

(d) operating means selectively operable between a first position for holding said bottom wall at said closed position thereof and a second position for permitting said bottom wall to assume said open position thereof; and

(e) mounting means adapted for mounting said box member to said three-point hitch of said vehicle.

12. Apparatus as defined in claim 11 wherein the other face of said box member back wall is also formed at its bottom edge as a second scraper blade.

13. Apparatus as defined in claim 12 wherein said mounting means permits movement of said box member between a lower position at which said bottom wall front edge engages the ground and said bottom wall is slanted upwardly therefrom, and a raised position at which said bottom wall is above the ground and slanted downward from said front edge thereof so as to retain dirt in said box member until said operating means is operated to said second position thereof.

14. Apparatus as defined in claim 13, wherein said bottom wall includes two flanges extending upwardly at each side edge thereof.

15. Apparatus as defined in claim 14, wherein said connecting means includes a pivot rod extending outwardly from each said side wall of said box member, a pair of slots formed to extend laterally in said flanges, and selectively removable retaining pins for normally maintaining said pivot rods in said slots whereby said bottom wall is pivotal about said pivot rods, and for permitting said pivot rods to be removed from said slots to detach said bottom wall.

16. Apparatus as defined in claim 11, wherein said operating means includes a hook portion for selectively engaging and disengaging said bottom wall, and a handle portion for moving said hook portion between an engaging position at which it engages said bottom wall and holds it at said closed position thereof and a release position at which it releases said bottom wall to permit the pivot to said open portion thereof.

17. Apparatus as defined in claim 16, wherein said handle portion of said operating means extends upwardly above the top of said box member and in a direction toward said mounting means whereby said handle portion can be grasped and operated by the driver of said vehicle.

18. Apparatus as defined in claim 12, wherein said apparatus includes second mounting means for mounting said box member to said vehicle so that said box member can be positioned with said second scraper blade engaging said ground and with said box member being slanted upwardly from said first scraper blade.

19. Apparatus as defined in claim 13, wherein said mounting means include a pair of spaced pivot rods mounted on said box member and located in a plane that extends vertically in spaced parallel relation to said back wall, said spaced pivot rods being adapted to be connected to the lowermost two points of said three-point hitch, and a third pivot rod located above said pair of spaced pivot rods and spaced from the plane thereof in a direction away from said back wall, said third pivot rod being adapted to be connected to the uppermost point of said three-point hitch.

20. Apparatus for attachment to a vehicle having a three-point hitch and used to scoop, dig, scarify, scrape and/or load dirt, such apparatus comprising:

(a) a box member having two spaced parallel side walls open at one end thereof and a back wall extending between said side walls at the other end thereof to form a generally rectangular container for dirt;

(b) a generally flat bottom wall extending between said side walls and having a formed edge thereof located at said one open end of said side wall, said edge being formed for scooping or digging dirt;

(c) pivot means connecting said bottom wall to said box member to permit selective movement of said bottom wall between a closed position at which it extends between said side walls to form a bottom of said box member and at which said formed edge is adjacent said one open end of said box member and an open position at which it opens the area between said side walls to release dirt contained in said box member;

(d) operating means operable between a first position holding said bottom wall at said closed position thereof with respect to said side walls and a second position to release said bottom wall and permit it to assume said open position thereof;

(e) first mounting means positioned at said open end of said box member and adapted for mounting said box member to said three-point hitch of said vehicle to permit movement of said box member between a first lower position at which said bottom wall edge engages the ground and said bottom wall is slanted upwardly therefrom, and a second raised position at which said bottom wall is above the ground and slanted downwardly from said edge so as to retain dirt in said box member until said operating means is operated to said second position thereof; and

(f) second mounting means positioned at said other end of said box member and adapted for mounting said box member to said three-point hitch of said vehicle to permit movement of said box member between said first lower position thereof and said second position thereof, whereby said box member can be movably mounted on said vehicle with said open end of said box member facing toward or away from said vehicle.