EP0717155A2 - Chargeuse - Google Patents

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Publication number
EP0717155A2
EP0717155A2 EP95118818A EP95118818A EP0717155A2 EP 0717155 A2 EP0717155 A2 EP 0717155A2 EP 95118818 A EP95118818 A EP 95118818A EP 95118818 A EP95118818 A EP 95118818A EP 0717155 A2 EP0717155 A2 EP 0717155A2
Authority
EP
European Patent Office
Prior art keywords
support
loader
loader according
rocker
holder
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.)
Withdrawn
Application number
EP95118818A
Other languages
German (de)
English (en)
Other versions
EP0717155A3 (fr
Inventor
Rory Rae
Ken Kengi Oka
Gordon D. Hubbard
Frank F. Rocco
David W. Bratt
Dean R. Chalmers
Ron M. Hind
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP0717155A2 publication Critical patent/EP0717155A2/fr
Publication of EP0717155A3 publication Critical patent/EP0717155A3/fr
Withdrawn legal-status Critical Current

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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
    • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
    • E02F3/6273—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor using legs to support the beams or arms on the ground during the connecting process

Definitions

  • the invention relates to a loader, in particular a front loader, with a parking device for supporting the loader on a footprint by means of at least one support which is movably attached to a rocker of the loader in order to assume a support position and a rest position.
  • US-A-4,264,264, US-A-4,347,031 and GB-A-2 110 643 each disclose a loader with a swing arm which is pivotally supported by a tractor or parked on the ground in a rest position. In the rest position, the rocker is supported by two supports that extend downwards and backwards from a fastening point on the rocker. The area of the swing arm that the support engages is inclined to the ground to allow space for the front wheels of the tractor.
  • the pivotable attachment of the support to the rocker arm is carried out by means of a bolt extending transversely to the direction of travel of the vehicle, various means being provided for fixing the support to the rocker arm in a rest position.
  • the support is designed to be variable in length or vertically movable on the swing arm to hold the loader in the correct position.
  • a loader emerges, the support of which can be inserted into sleeves on the rocker and is thus immovably fixed to the latter.
  • the support can be attached to the front of the vehicle as a crash protection by fixing it in sleeves in the same way.
  • the object on which the invention is based is seen in proposing a loader with a parking device which is stowed as well as possible in the loading mode.
  • the position of the axis and the angled course of the support in its main support section creates the possibility of pivoting the support past the rocker arm, so that it finally assumes a position which is located in the interior of the rocker arm and provides protection against mechanical influences from the outside as well as sufficient space for front wheels of the vehicle or front weights attached to it or the like.
  • the axis can extend both vertically and inclined to the ground; however, it is essential that it extends in a plane lying in the working direction, the z. B. can form the longitudinal center plane of the vehicle and loader or runs parallel to this.
  • the axis could also be inclined to the ground as the footprint, and the main pillar portion of the pillar could be pivoted 90 degrees to eventually extend transversely to the direction of travel, with two pillars possibly crossing each other.
  • the adjustment can be done both manually and by motor, z. B. by means of an electric or hydraulic motor.
  • the pivot axis of the support is vertical or substantially vertical, there is a pivoting movement without a vertical shift of the center of gravity, so that the operator does not have to do any lifting work.
  • the alignment on the inclined portion of the rocker leads to the fact that the rest disappears completely behind the arms of the rocker in its rest position and neither disturbs nor takes up much space.
  • the angle of the inclined section of the rocker will also be the angle at which the main support section extends to the contact surface.
  • the support can be guided directly from its bearing point in the direction of the contact surface if an obtuse angle is selected between the support or its main support section and the axis.
  • the support can also be made variable in length, which is expediently done by means of telescopically connectable inner and outer tubes, which can be done in a simple and safe manner by means of Bolts and these receiving holes can be locked in different positions.
  • a locking device should be preferred because this keeps the resistance to movement as low as possible and defined positions are positively assumed.
  • the location of the locking mechanism inside the stiffening tube secures it against damage and exposure to water and dirt, which contributes significantly to its error-free function. Storage in a sleeve ensures a large storage area, which leads to low friction and tilt-free movement.
  • a bolt without guide or spring loading could also be used for locking; the claimed embodiment ensures, however, that the bolt is not lost, can be easily inserted into the holes and automatically assumes its locking position when the holes in question overlap, which simplifies the operation of the parking device.
  • the support is supported by means of a fastening pin with a stop or a shoulder, the reduced of which Area is longer than the length in the receiving opening, allows a pivoting movement without resistance due to the axial attachment of the support by the screw.
  • a simple assembly of the holder or the entire locking mechanism in the stiffening tube is achieved if it contains a T-shaped rod which carries the essential locking components and has a section which can be inserted into a hole in the stiffening tube for its fixed locking.
  • vehicle 10 in the manner of an agricultural tractor, on the front of which a loader 12 is mounted.
  • vehicle 10 includes a longitudinally extending main frame 14 that is supported on a pair of front steerable wheels 16 and a rear pair driven wheels 18 supports.
  • Loader 12 has a pair of upright masts 20 each mounted on a pair of support frames 22 bolted to opposite sides of frame 14.
  • Loader 12 further includes a rocker arm 24 having a pair of longitudinally extending, parallel arms 26 spaced apart from one another, the rear ends of which are each pivotally connected to the top of the pair of masts 20 by means of a pair of connecting bolts 28.
  • a horizontally extending stiffening tube 30 unites or connects the arms 26 at a location spaced from the vehicle 10 when the loader is in its lowered position shown in FIG. 1.
  • a hydraulic cylinder 32 for lifting and lowering the rocker 24 by means of a pivoting process about an axis defined by the connecting bolts 28.
  • a bucket-type tool 34 is pivotally connected to the front ends of the arms 26 by means of a pair of bolts 36, and hydraulic cylinders 38 for pivoting the tool 34 between each arm 26 and the Tool 34 are connected. Up to this point, the description corresponds to that of a conventional front loader.
  • Loader 12 further includes a parking device 40 connected to rocker 24.
  • Parking device 40 includes a pair of identical brackets 42, each of which is attached to stiffening tube 30 in this embodiment, near the inside of arms 26.
  • each post 42 includes a variable length main post portion that includes an inner tube 44 of square cross-section that is telescopically received in a matching outer tube 46, the inner tube 44 having a plurality of adjustment bores 48 that extend over it Have a distance from each other and can be brought into alignment with a transverse bore 50 in the outer tube 46.
  • a locking bolt not shown, will through the aligned alignment holes 48 and the transverse bore 50 to fix the inner and outer tubes 44, 46 relative to each other and thus to set a desired length of the support 42, which length depends on the design, size and mounting situation of the loader 12 to which it is used.
  • a foot 52 is formed by a plate which is welded to the underside of the inner tube 44.
  • a cap 54 is formed from a plate welded to the top of outer tube 46 and to which is welded a round cylindrical mounting pin 56 having an axis "A" having a longitudinal axis "B" of inner and outer tubes 44 and 46 includes an angle of approximately 154.5 degrees; however, this angle size depends on the shape of the rocker 24, in particular the inclination of its front section.
  • the upper portion of the mounting pin 56 has a smaller outer diameter so as to form a stop 58, the purpose of which will be explained further below.
  • each support 42 extends substantially vertically into the stiffening tube 30 and is with welded to the underside thereof near the inside of the arms 26. While these are the preferred locations for the receptacles 60, as discussed below, the same or approximately the same effect could be achieved if one the receptacles 60 to other locations on the rocker 24, z. B. welded directly to the inside of the arms 26.
  • the mounting pin 56 of each support 42 is received for rotation within the receptacle 60 and extends upward beyond the top thereof.
  • each of the arms 26 and the footprint, the floor forms the complementary angle to the angle that extends from the axis of the mounting pin 56 and the longitudinal axis of the main support portion of the support 42 composed of the inner and outer tubes 44, 46, forms.
  • Each support 42 extends along the adjacent arm 26 when in its rest position, as shown in broken lines in Figure 2, and extends forward and upward from the ground at an angle of 64.5 degrees. when it assumes its support or parking position, as can be seen in solid lines in Figure 2.
  • the supports 42 in no way reduce the clearance between the swing arm 24 and the front steerable wheels 16.
  • each support 42 contains a locking mechanism 62, which in this exemplary embodiment is completely accommodated in the stiffening tube 30.
  • each locking mechanism 62 includes a cylindrical ring 64 that receives the upper portion of the mounting pin 56.
  • a disk-like holding member 66 is welded to the top of each ring 64 and is provided with an opening 68 for receiving the stop 58.
  • the support member 66 has a thickness slightly less than the height of the stop 58, and a screw 70 that penetrates a washer 72 is set in a blind threaded hole that extends axially in the mounting pin 56, and so is against the stop 58 firmly established that no load is introduced into the ring 64.
  • the holder 76 also includes a head having upper and lower portions 78 and 80, respectively, the lower portion 80 extending into a hole 82 provided in the stiffening tube 30 to prevent the ring 64 from rotating about the mounting pin 56 or whose stop 58 is secured.
  • the ring 64 is provided with diametrically opposite bores 84 and 86 which are axially aligned with one another and on a parallel to a longitudinal axis of the Stiffening tube 30 extending axis are arranged.
  • the mounting pin 56 of the associated support 42 contains a transverse bore 88 which is aligned with the bores 84, 86 and a bore 90 which is located in the upper section 78 of the T-shaped holder 76.
  • the locking bolt 92 with a handle 94 at its outer end is received in the bores 84, 86, 88 and 90.
  • the locking bolt 92 is pulled out of the bore 86 and the transverse bore 88 against the resistance of a helical compression spring 95 which surrounds the locking bolt 92 between the upper section 78 of the head and a stop formed by a disk 96.
  • the washer 96 is received on the locking pin 92 and held against movement away from the upper portion 78 by means of a dowel pin 98 which extends through a transverse bore in the locking pin 92.
  • An inward movement, that is to say to the right in FIG. 4, of the locking bolt 92 is limited by a stop which results from a shoulder 100 which is located on the locking bolt 92 and strikes the outside of the upper section 78 when the locking bolt 92 assumes its locking position. Accordingly, the locking bolt 92 holds the respective support 42 optionally in its support or rest position, as is shown in each case in solid or broken lines in FIG. 2.
  • a second transverse bore 88 must be provided in the fastening pin 56.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Agricultural Machines (AREA)
EP95118818A 1994-12-13 1995-11-30 Chargeuse Withdrawn EP0717155A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US354298 1989-05-19
US08/354,298 US5531561A (en) 1994-12-13 1994-12-13 Loader parking stand system

Publications (2)

Publication Number Publication Date
EP0717155A2 true EP0717155A2 (fr) 1996-06-19
EP0717155A3 EP0717155A3 (fr) 1997-02-26

Family

ID=23392687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118818A Withdrawn EP0717155A3 (fr) 1994-12-13 1995-11-30 Chargeuse

Country Status (2)

Country Link
US (1) US5531561A (fr)
EP (1) EP0717155A3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7160076B2 (en) * 2004-09-17 2007-01-09 Clark Equipment Company Work machine with boom stop
JP4233530B2 (ja) * 2005-01-27 2009-03-04 株式会社クボタ 作業車
US8162586B2 (en) * 2006-12-13 2012-04-24 Challenge Implements Holdings Pty Limited Parking stand
US7578648B2 (en) * 2007-09-28 2009-08-25 Deere & Company Front latch system for a front end loader
US8322969B1 (en) 2009-09-10 2012-12-04 Westendorf Manufacturing, Co. Loader assembly and method providing for cantilevered storage of lift arms
USD629019S1 (en) * 2009-09-17 2010-12-14 J.C. Bamford Excavators Limited Excavator arm
USD628604S1 (en) * 2009-09-17 2010-12-07 J.C. Bamford Excavators Limited Loader arms
US8544885B2 (en) * 2009-12-10 2013-10-01 Deere & Company Folding parking stand
USD646303S1 (en) * 2010-05-28 2011-10-04 Deere & Company Loader boom end cap casting
USD646302S1 (en) * 2010-05-28 2011-10-04 Deere & Comapny Loader boom knee casting
USD654514S1 (en) * 2010-05-28 2012-02-21 Deere & Company Loader boom foot casting
USD646306S1 (en) * 2011-02-23 2011-10-04 Cnh America Llc Equipment boom
USD678919S1 (en) * 2011-02-23 2013-03-26 Cnh America Llc Equipment dipperstick
US20180179729A1 (en) * 2016-12-28 2018-06-28 Cnh Industrial America Llc Accessory mounting system for a work vehicle
USD954762S1 (en) * 2019-03-29 2022-06-14 Cnh Industrial America Llc Loader arm for a work vehicle
US11446703B2 (en) 2019-11-06 2022-09-20 Albert Ben Currey Bucket with vibrating screen
USD943009S1 (en) * 2019-11-06 2022-02-08 Albert Ben Currey Bucket

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1121146A (en) 1964-09-19 1968-07-24 Massey Ferguson Perkins Ltd Improvements in or relating to tractor and loader combinations
US4264264A (en) 1979-02-26 1981-04-28 Deere & Company Loader mounting structure
US4347031A (en) 1980-06-23 1982-08-31 Deere & Company Parking stand for tractor-dismounted front loader
GB2110643A (en) 1981-12-03 1983-06-22 Farmhand Inc Quick attachment device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337015A (en) * 1980-06-23 1982-06-29 Deere & Company Parking stand means for tractor-dismounted implement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1121146A (en) 1964-09-19 1968-07-24 Massey Ferguson Perkins Ltd Improvements in or relating to tractor and loader combinations
US4264264A (en) 1979-02-26 1981-04-28 Deere & Company Loader mounting structure
US4347031A (en) 1980-06-23 1982-08-31 Deere & Company Parking stand for tractor-dismounted front loader
GB2110643A (en) 1981-12-03 1983-06-22 Farmhand Inc Quick attachment device

Also Published As

Publication number Publication date
EP0717155A3 (fr) 1997-02-26
US5531561A (en) 1996-07-02

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