US3892322A - Scraper and digger attachment for a tractor loader - Google Patents
Scraper and digger attachment for a tractor loader Download PDFInfo
- Publication number
- US3892322A US3892322A US431463A US43146374A US3892322A US 3892322 A US3892322 A US 3892322A US 431463 A US431463 A US 431463A US 43146374 A US43146374 A US 43146374A US 3892322 A US3892322 A US 3892322A
- Authority
- US
- United States
- Prior art keywords
- loader
- swing mechanism
- pin
- backhoe
- implement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/968—Storing, handling or otherwise manipulating tools when detached from the machine
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3695—Arrangements for connecting dipper-arms to loaders or graders
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
- E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
Definitions
- the invention relates to a loader fitted with a loading boom which can be raised and lowered by means oflifting cylinders and a rocker arm articulated thereon for controlling an implement connectable to the front end of the loading boom as well as a backhoe mounted at the front of the loader.
- the invention proceeds on the conclusion that it is by far more economical being able to work with two different implements in direct sequence without any change of equipment; meaning, both implements remain on the vehicle permanently, whereby in each case one implement is in operating position and the second one is in an inoperative position.
- the invention is based upon the task of creating a loader of the initially described type which makes it feasible that besides the normal loading jobs carried out by means of the loading bucket fitted to the front end of the loading boom also excavating work can be executed by means of a backhoe articulated on the machine in a specific manner and finally scraping as well as levelling (filling) jobs can be carried out by means of yet another implement, whereby no dismantling of an implement is required when changing from excavating work to filling operations or vice versa.
- this problem is solved by providing a design where the backhoe by means of its swing mechanism can be connected to the rocker arm and where simultaneously a scraper blade or similar implement can be linked up with the front end of the loading boom.
- a loader is created where the mounted backhoe and the available scraper blade remain on the vehicle permanently, whereby during backhoe operation the scraper blade is brought to its inoperative position, and during operation of the scraper blade the backhoe remains in its non-interfering, inoperative position.
- Such a vehicle is superior by a variety of advantages, because the scraper blade can be used to carry out the required scraping and levelling jobs from the readily available operator's platform of the vehicle without any change of implements.
- the entire operators platform for the backhoe is not required and thus saved, and the setting of the implements can be carried out quickly and simply resulting in a positively speedy mounting operation of the backhoe which for example was placed on supporting plates aside of the machine.
- a positive quick mounting operation is also facilitated by the locking recesses preferably designed as snap closures provided on the backhoes swing mechanism and the corresponding locking pins provided on the rocker arm.
- the one locking recess of the swing mechanism is designed as an approximate halfcylindrical recess and the second locking recess (supporting receptacle) is provided with an arresting shackle.
- Another important factor as regards the invention is the provision of supporting plates on the rear bottom face of the scraper blade. During operation of the backhoe the lifting arm and by that the vehicle can be given ground support by means of the supporting plates, thus guaranteeing an almost vibration-free operation.
- These supporting plates can be designed as adjustable members to compensate broken ground.
- FIG. 1 shows: the loader with the scraper blade articulated to the machine and the backhoe standing separately in front of the machine.
- FIG. 2 shows: the loader with mounted backhoe, whereby the backhoe is in operating position.
- FIG. 3 shows: the loader with the scraper blade in operating position and the backhoe in its inoperative position.
- FIG. 4 shows: the loader with both implements in transport position
- FIG. 5 shows: a front view of the loader.
- the invention refers to a conventional loader l with a loading boom 2 actuated by lifting cylinders 3.
- a rocker arm 4 is supported on the loading boom 2 pivoting around an axis 5.
- the rocker arm 4 can be tilted by means of a tilting cylinder 6.
- a tilting link 7 is articulated to the bottom end of the rocker arm 4, said tilting link 7 in the shown embodiment being articulated to a pin 9 positioned at the rear end of a scraper blade 8.
- the scraper blade 8 itself is pivotally supported at a moving joint 11 at the front end of the loading boom 2.
- At the rear bottom face of the scraper blade 8 supporting plates 12 are provided, the function of which will be described in detail further on.
- the rocker arm 4 Bilaterally of its moving joint 5 the rocker arm 4 is provided with locking pins 13 and 14. While the top locking pin 13 is positioned centrically on the center axis of the rocker arm 4, the bottom locking pin 14 is located on the front face of the rocker arm 4. Both locking pins 13 and I4 interact with locking recesses I5 and 16 on the swing mechanism 17 of a backhoe l8. Said backhoe is of conventional design and therefore is not described in detail. It is also a common practice to rest the backhoe on supporting plates 19 of its own when in inoperative position. In the embodiment shown, the upper locking recess is of halfcylindrical shape 21, whereas the bottom locking recess 16 is provided with an arresting shackle 22.
- the locking pins 13, 14, and the locking recesses 15 and 16 are designed in form of snap closures, thus rendering possible speedy engaging of the backhoe l8 and its swing mechanism 17 over the locking pins 13, 14 of the rocker arm 4.
- the only requirement is to drive the loader with the loading boom up to the parked backhoe 18 into the position shown in FIG. 1, and that as far as necessary to let the locking pin 14 slip behind the arresting shackle 22. Shortly before arriving at that point the locking pin 13 has reached the locking recess 15. If the loading boom 2 is then raised by means of the lifting cylinder 3, the locking pins 13, 14 are automatically locked in the locking recesses 15, 16, and the operation of quickly mounting the backhoe 18 onto the loader 1 is accomplished.
- the locked position is shown in H6. 2.
- the loading boom 2 is slightly lowered, and that so far till the supports 12 of the scraper blade 8 can rest upon the ground. This guarantees a vibration-free support when operating the backhoe 18.
- the supporting plates 12 allow for hydraulic adjusting to compensate uneven (broken) ground.
- the rocker arm 4 is swung to the rear, as can be seen in FIG. 3.
- the swing mechanism 17, and together with it the backhoe 18, is swung to the rear in a inclined fashion, thus leaving free the area underneath the swing mechanism 17 free for operation of the scraper blade 8.
- a tractor loader having a pair of vertically swingable boom arms, an elongate rocker lever between the boom arms and being connected at the center by a pin to the boom arms, a pair of hydraulic ram cylinders carried on the tractor loader and linked to the boom arms for swinging the boom arms, a third hydraulic ram cylinder carried on the tractor and linked to an end of the rocker lever for rocking the other end of the rocker lever, an earth scraping implement having means for connecting same to the ends of the boom arms, and an earth digging implement including a swing mechanism having means for connecting same to the tractor loader, wherein the improvement comprises:
- first latching means on the rocker lever and a second latching means on the swing mechanism the latching means being latched together for connecting the digging implement to the rocker lever
- connecting means being pivotally connected to the boom arms for connecting the scraping implement to the boom arms a spaced apart clearance distance from the swing mechanism.
- first latching means comprise two spaced-apart bars mounted on the rocker lever on opposite sides of the pin connection and the second latching means comprise two correspondingly spaced apart recesses on the swing mechanism complementary in shape to the crosssectional shape of the bars, and a shackle means associated with one of the recesses for securing one of the bars in the one recess.
- a tractor loader as claimed in claim 8 wherein one bar is mounted on the rocking lever a spaced apart distance from the pin on a central plane extending perpendicular to the axis of the pin, and the other bar is mounted on the rocking lever a spaced apart distance from the pin on a side of the rocking lever which faces the swing mechanism.
- a ground support plate means is mounted to the scraping implement for engaging with the ground upon downward swinging of the boom arms for supporting the digging implement.
Abstract
Description
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2315581A DE2315581B1 (en) | 1973-03-29 | 1973-03-29 | Shovel loader |
Publications (1)
Publication Number | Publication Date |
---|---|
US3892322A true US3892322A (en) | 1975-07-01 |
Family
ID=5876259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US431463A Expired - Lifetime US3892322A (en) | 1973-03-29 | 1974-01-07 | Scraper and digger attachment for a tractor loader |
Country Status (6)
Country | Link |
---|---|
US (1) | US3892322A (en) |
JP (1) | JPS5439642B2 (en) |
CA (1) | CA1004632A (en) |
DE (1) | DE2315581B1 (en) |
FR (1) | FR2223518B1 (en) |
GB (1) | GB1432747A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4117944A (en) * | 1977-04-22 | 1978-10-03 | Clark Equipment Company | Backhoe mounting assembly |
US4174012A (en) * | 1977-02-11 | 1979-11-13 | Emile Bobard and Jeune Bobard (S.A.) | Self-propelled unit with a high-clearance chassis vehicle |
US4548543A (en) * | 1981-12-03 | 1985-10-22 | Farmhand, Inc. | Quick attachment device |
EP0168946A1 (en) * | 1984-06-12 | 1986-01-22 | Ridley Stokoe | Excavator/loader |
WO1987004503A1 (en) * | 1986-01-27 | 1987-07-30 | American Sterilizer Company | High angle link hinge |
WO2007030908A1 (en) * | 2005-09-16 | 2007-03-22 | Moose Mountain Heavy Equipment Training Center Inc. | System and method for training an excavator operator |
US8322969B1 (en) | 2009-09-10 | 2012-12-04 | Westendorf Manufacturing, Co. | Loader assembly and method providing for cantilevered storage of lift arms |
US8444367B2 (en) | 2008-07-18 | 2013-05-21 | Clark Equipment Company | Locking device for securing a backhoe attachment to a carrier lift arm |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE437050B (en) * | 1982-06-04 | 1985-02-04 | Ingemar Eriksson | FOR A LOADER APPLICABLE GRAVAGGGGAT FOR MINOR GRAVING WORK |
JPS59167863U (en) * | 1983-04-25 | 1984-11-10 | 株式会社豊田自動織機製作所 | Horizontal holding device for industrial vehicle attachments |
US5004397A (en) * | 1988-07-01 | 1991-04-02 | O&K Orenstrein & Koppel Aktiengesellschaft | Attachment holder for interchangeable equipment on the superstructure of a mobile shovel excavator |
FI911637A (en) * | 1991-04-05 | 1992-10-06 | Harinen Vesa | TILLSATSANORDNING FOER HJULLASTARE |
ZW17391A1 (en) * | 1991-05-27 | 1992-04-29 | Leo Carlo Giuseppe Mattioda | Attachment for a tractor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003651A (en) * | 1957-04-08 | 1961-10-10 | Wain Roy Corp | Excavating apparatus |
US3732996A (en) * | 1971-08-30 | 1973-05-15 | Clark Equipment Co | Apparatus and method for mounting an attachment on a vehicle |
US3771677A (en) * | 1970-03-24 | 1973-11-13 | Ware Machine Works Inc | Material handling apparatus |
-
1973
- 1973-03-29 DE DE2315581A patent/DE2315581B1/en active Granted
-
1974
- 1974-01-07 US US431463A patent/US3892322A/en not_active Expired - Lifetime
- 1974-01-21 CA CA190,539A patent/CA1004632A/en not_active Expired
- 1974-03-22 GB GB1284474A patent/GB1432747A/en not_active Expired
- 1974-03-25 JP JP3336974A patent/JPS5439642B2/ja not_active Expired
- 1974-03-28 FR FR7410782A patent/FR2223518B1/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003651A (en) * | 1957-04-08 | 1961-10-10 | Wain Roy Corp | Excavating apparatus |
US3771677A (en) * | 1970-03-24 | 1973-11-13 | Ware Machine Works Inc | Material handling apparatus |
US3732996A (en) * | 1971-08-30 | 1973-05-15 | Clark Equipment Co | Apparatus and method for mounting an attachment on a vehicle |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174012A (en) * | 1977-02-11 | 1979-11-13 | Emile Bobard and Jeune Bobard (S.A.) | Self-propelled unit with a high-clearance chassis vehicle |
US4117944A (en) * | 1977-04-22 | 1978-10-03 | Clark Equipment Company | Backhoe mounting assembly |
US4548543A (en) * | 1981-12-03 | 1985-10-22 | Farmhand, Inc. | Quick attachment device |
EP0168946A1 (en) * | 1984-06-12 | 1986-01-22 | Ridley Stokoe | Excavator/loader |
AU583513B2 (en) * | 1984-06-12 | 1989-05-04 | Ridley Stokoe | Excavator/loader |
GB2194611A (en) * | 1986-01-27 | 1988-03-09 | American Sterilizer Co | High angle link hinge |
US4706511A (en) * | 1986-01-27 | 1987-11-17 | American Sterilizer Company | High angle link hinge |
JPS63502610A (en) * | 1986-01-27 | 1988-09-29 | ステリス・コーポレーション | High angle link hinge |
WO1987004503A1 (en) * | 1986-01-27 | 1987-07-30 | American Sterilizer Company | High angle link hinge |
GB2194611B (en) * | 1986-01-27 | 1990-01-24 | American Sterilizer Co | High angle link hinge |
JP2870750B2 (en) | 1986-01-27 | 1999-03-17 | ステリス・コーポレーション | High angle link hinge |
WO2007030908A1 (en) * | 2005-09-16 | 2007-03-22 | Moose Mountain Heavy Equipment Training Center Inc. | System and method for training an excavator operator |
US8444367B2 (en) | 2008-07-18 | 2013-05-21 | Clark Equipment Company | Locking device for securing a backhoe attachment to a carrier lift arm |
US8322969B1 (en) | 2009-09-10 | 2012-12-04 | Westendorf Manufacturing, Co. | Loader assembly and method providing for cantilevered storage of lift arms |
Also Published As
Publication number | Publication date |
---|---|
FR2223518B1 (en) | 1978-10-13 |
GB1432747A (en) | 1976-04-22 |
CA1004632A (en) | 1977-02-01 |
FR2223518A1 (en) | 1974-10-25 |
DE2315581B1 (en) | 1974-06-27 |
JPS5439642B2 (en) | 1979-11-29 |
JPS50604A (en) | 1975-01-07 |
DE2315581C2 (en) | 1975-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DRESSER INDUSTRIES, INC., A CORP. OF DEL. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNATIONAL HARVESTER COMPANY;REEL/FRAME:004130/0646 Effective date: 19821101 Owner name: DRESSER INDUSTRIES, INC., A CORP. OF DEL., STATELE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INTERNATIONAL HARVESTER COMPANY;REEL/FRAME:004130/0646 Effective date: 19821101 |
|
AS | Assignment |
Owner name: KOMATSU DRESSER COMPANY, E. SUNNYSIDE 7TH ST., LIB Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER FINANCE CORPORATION, A CORP. OF DE.;REEL/FRAME:004994/0077 Effective date: 19880901 Owner name: DRESSER FINANCE CORPORATION, DALLAS, TX., A DE COR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DRESSER INDUSTRIES, INC.;REEL/FRAME:004994/0061 Effective date: 19880831 |