US3909962A - Back-acting shovel having cooperating turret mounted blade - Google Patents

Back-acting shovel having cooperating turret mounted blade Download PDF

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Publication number
US3909962A
US3909962A US483807A US48380774A US3909962A US 3909962 A US3909962 A US 3909962A US 483807 A US483807 A US 483807A US 48380774 A US48380774 A US 48380774A US 3909962 A US3909962 A US 3909962A
Authority
US
United States
Prior art keywords
blade
turret
arm
frame
appliance
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
Application number
US483807A
Other languages
English (en)
Inventor
Gabriel L Guinot
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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Application granted granted Critical
Publication of US3909962A publication Critical patent/US3909962A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2037—Coordinating the movements of the implement and of the frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/125—Combined or convertible implements

Definitions

  • a turret is mounted on the frame for rotation [30] Forelgn Apphcamm pnonty Data and has a working attachment mounted thereon, the June 29, 1973 France 73.23889 working attachment including a working tool Such as, for example, a bucket.
  • An arm is mounted by one end [52] Cl 37/117-5; 37/DIG- 3; 214/1 E; on the turret and carries on its other end a blade.
  • This invention relates to earth moving appliances.
  • a blade is interposed between a bucket and a frame of the shovel in such a manner as to retain the material brought close to the frame by the bucket at the level of the blade, and thus to load the bucket more easily.
  • the blade is pivotally mounted on the frame, which does not permit the blade to operate to advantage in all positions of the turret relative to the frame.
  • the blade may consist of a sort of shield which completely surrounds the frame but this makes the shovel heavy, expensive, and cumbersome.
  • an earth moving appliance comprising a frame; displacement means for moving the frame; turret means mounted on the frame for rotation relative thereto; a working attachment mounted on said turret means and including a working tool; an arm mounted on the turret means; a blade means mounted on said arm; and means for altering the position of said arm, so that in one position the blade means will bear against the ground, the blade means extending transversely to a plane of movement of the working attachment and being disposed between the working tool and the frame.
  • the working attachment is mounted on the turret means for pivotal movement about a first axis
  • the arm is mounted by one end on the turret means for pivotal movement about the second axis parallel to said first axis
  • the arm is disposed substantially parallel to the plane of movement of the said working attachment
  • a jack is operatively connected between the turret means and said arm
  • the blade means is mounted on the other end of the arm.
  • the distance between the blade means and the axis of rotation of the turret means is substantially equal to the distance between the radially outer extremity of the turret means and the said axis of rotation.
  • the blade means may be concave in a direction facing the working tool.
  • the width of the blade means in a direction transverse to the plane of movement of the working attachment is between 1.5 times and 2 times the corresponding width of the working tool.
  • the working attachment may comprise ajib pivotally mounted on the turret means, a rocking lever pivotally mounted on the jib, and a bucket pivotally mounted on the rocking lever.
  • FIG. 1 is a side elevation of an earth moving appliance according to the present invention.
  • FIG. 2 is a top plan view of the appliance shown in FIG. 1.
  • the appliance comprises a frame I provided with caterpillar tracks 2 which rest upon the ground indicated by the reference numeral 3.
  • a turret 4 is mounted for rotation about an axis 5 relative to the frame 1.
  • a counterweight 6 is fixed to the rear (as seen in FIG. 1) of the turret 4 and its radially outer extremity is at a mean distance R1 from the axis 5, the locus of movement of the radially outer extremity of the counterweight 6 being indicated by the circle 21.
  • a working attachment 7 comprises a jib 8 which is mounted on the turret 4 for pivotal movement about a transverse horizontal axis 9, a rocking lever 10 mounted on the jib 8 for pivotal movement about an axis 11 which is parallel to the axis 9, and a bucket 12 mounted on the rocking lever 10 for pivotal movement about an axis 13 which is also parallel to the axis 9.
  • a plurality of jacks 14, l5, 16 are coupled respectively between the turret 4 and the jib 8, the jib 8 and the rocking lever 10, and the rocking lever 10 and the bucket 12.
  • a double arm 17 is mounted by one end on the turret 4 for pivotal movement about an axis 18 parallel to the axis 9, two jacks 19 being coupled between the arm 17 and the turret 4.
  • a blade 20 is fastened to the other end of the arm 17.
  • the blade 20 shows in FIG. 1 in solid lines is in the position in which it bears on the ground 3. In the raised position, shown in broken lines, the maximum distance R2 between the blade 20 and the axis 5 is at most equal to the distance R1.
  • the bucket 12 is shown in FIG. 1 in the position in which it rests on the gound 3. In this position the bucket 12 faces the blade'20, the latter being interposed between the frame 1 and the bucket 12.
  • the blade 20 has a slightly concave profile 22 facing the bucket 12.
  • the blade 20 extends substantially perpendicularly or transversely to a plane 23 of movement of the working attachment 7, the two parts of the arm 17 extending substantially parallel to the plane 23 of movement of the working attachment.
  • the blade 20 has a width L1 in a direction transverse to the plane 23 of movement of the working attachment 7 approximately equal to 1.5 times the width L2 of the bucket 12.
  • FIG. 2 a lorry 24 is shown at the side of the appliance.
  • the above appliance has a working attachment 7 which is known per se and which is pivoted in a known manner to a turret 4 mounted for rotation on a frame 1, it can perform the functions of a conventional shovel.
  • the blade 20 mounted on the arm 17 which itself is pivotally mounted on the turret 4 it is possible to engage the blade 20 with the ground 3 thus to oppose movement towards the tracks 2 of the appliance of material 25 pushed by the bucket 12, and to enable this material 25 to enter the bucket.
  • the blade 20 makes it possible to load all the material 25 into the bucket 12.
  • the width Ll of the blade 20, being greater than the width L2 of the bucket 12, ensures satisfactory retention of the material 25.
  • the blade 20 has a locus of movement the diameter of which is equal to the diameter of the locus of movement of the counterweight 6 on the turret.
  • the lorry 24, which is disposed outside the cir cle 21, is out of possible contact not only with the counterweight 6 but also with the blade 20, which is a desirable feature in connection with operational safety.
  • the concave profile 22 of the blade 20 collects the material at the centre of the blade and thus also facilitates loading of the material 25 into the bucket 12.
  • the blade 20 can also serve to anchor the working attachment 7 relative to the ground 3.
  • reaction force of collecting the material 25 by, and in the bucket 12 entails a reaction force against the bucket.
  • this reaction force is taken by a bucket ring which permits the rotation of the turret 4 relative to the frame 1.
  • all or part of this reaction force can be taken by momentary anchoring of the blade in the ground 3 and, therefore, independently of the frame 1.
  • the working attachment 7 combined with the blade 20 constitutes an assembly which is at least partially balanced at this point.
  • the blade 20 can be used after the style of a blade ofa bulldozer in order to remove debris from the surface of the ground.
  • the blade 20 is mounted on the turret 4 makes it possible, on the one hand, for the blade to accompany the bucket 12 whatever the orientation of the turret 4 and for the center of the blade to be located in the plane 23 of movement of the bucket 12, and on the other hand the width L1 of the blade 20 can be limited, in this particular case, to 1.5 times the width L2 of the bucket. Consequently, although the blade 20 is relatively light and compact, it nevertheless effects satisfactory retention of the material 25. It should be added that as a modification the axis 18 may be coaxial with the axis 9 and that a jack may be coupled between the jib 8 and the arm 17. Combined movement of the bucket 12 and of the blade 20 can then be achieved, this operation being similar to that of a grab bucket comprising two shells.
  • the bucket 12 can be replaced by another tool, such as, for example, a claw type tool.
  • An earth moving appliance comprising a frame; displacement means for moving the frame; turret means mounted on the frame for rotation relative thereto; a working attachment mounted on said turret means and including a working tool; an arm mounted on the turret means; a blade means mounted on said arm; and means for altering the position of said arm, so that in one position the blade means will bear against the ground, the blade means extending transversely to a plane of movement of the working attachment and being disposed between the working tool and the frame.
  • An appliance as claimed in claim 1 in which the working attachment is mounted on the turret means for pivotal movement about a first axis, the arm is mounted by one end on the turret means for pivotal movement about a second axis parallel to said first axis, the arm has at least a portion thereof disposed substantially parallel to the plane of movement of the said working attachment, a jack is operatively connected between the turret means and one end of said arm, and the blade means is mounted on the other end of the arm.
  • An appliance as claimed in claim 1 in which the working attachment comprises a jib pivotally mounted on the turret means, a rocking lever pivotally mounted on the jib, and a bucket pivotally mounted on the rocking lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Shovels (AREA)
  • Operation Control Of Excavators (AREA)
  • Earth Drilling (AREA)
  • Jib Cranes (AREA)
  • Component Parts Of Construction Machinery (AREA)
US483807A 1973-06-29 1974-06-27 Back-acting shovel having cooperating turret mounted blade Expired - Lifetime US3909962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323889A FR2235231B1 (es) 1973-06-29 1973-06-29

Publications (1)

Publication Number Publication Date
US3909962A true US3909962A (en) 1975-10-07

Family

ID=9121786

Family Applications (1)

Application Number Title Priority Date Filing Date
US483807A Expired - Lifetime US3909962A (en) 1973-06-29 1974-06-27 Back-acting shovel having cooperating turret mounted blade

Country Status (11)

Country Link
US (1) US3909962A (es)
JP (1) JPS5834620B2 (es)
AR (1) AR204167A1 (es)
BE (1) BE816247A (es)
BR (1) BR7404803D0 (es)
CA (1) CA1006125A (es)
DE (1) DE2430008C2 (es)
ES (1) ES427697A1 (es)
FR (1) FR2235231B1 (es)
GB (1) GB1429400A (es)
IT (1) IT1015422B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444542A (en) * 1981-05-22 1984-04-24 Shaw Douglas A Vehicle with double booms
EP0814205A2 (de) * 1996-06-18 1997-12-29 Gottfried Schuschitz Ausleger für ein Fahrzeug
US6032094A (en) * 1997-01-31 2000-02-29 Komatsu Ltd. Anti-toppling device for construction machine
US20170071140A1 (en) * 2015-09-10 2017-03-16 Komatsu Ltd. Work vehicle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5513501Y2 (es) * 1975-03-13 1980-03-26
FR2450913A1 (fr) * 1979-03-08 1980-10-03 Takeuchi Manufacturing Cy Ltd Pelle retrocaveuse giratoire a lame
JPH0334097Y2 (es) * 1985-02-13 1991-07-19
JPS62169926U (es) * 1986-04-19 1987-10-28

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466770A (en) * 1966-09-16 1969-09-16 Frank W Morrison Self-propelled earth excavating and leveling apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660816A (en) * 1949-02-17 1953-12-01 Willard A Maxwell Combination bulldozer and shovel arrangement
FR1450809A (fr) * 1965-07-15 1966-06-24 Poclain Sa équipement de pelle pour travail de raclage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466770A (en) * 1966-09-16 1969-09-16 Frank W Morrison Self-propelled earth excavating and leveling apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444542A (en) * 1981-05-22 1984-04-24 Shaw Douglas A Vehicle with double booms
EP0814205A2 (de) * 1996-06-18 1997-12-29 Gottfried Schuschitz Ausleger für ein Fahrzeug
EP0814205A3 (de) * 1996-06-18 1998-04-01 Gottfried Schuschitz Ausleger für ein Fahrzeug
US6032094A (en) * 1997-01-31 2000-02-29 Komatsu Ltd. Anti-toppling device for construction machine
US20170071140A1 (en) * 2015-09-10 2017-03-16 Komatsu Ltd. Work vehicle
US10362738B2 (en) * 2015-09-10 2019-07-30 Komatsu Ltd. Work vehicle

Also Published As

Publication number Publication date
JPS5037205A (es) 1975-04-07
BE816247A (fr) 1974-09-30
FR2235231A1 (es) 1975-01-24
FR2235231B1 (es) 1976-04-30
BR7404803D0 (pt) 1975-10-07
IT1015422B (it) 1977-05-10
AR204167A1 (es) 1975-11-28
DE2430008A1 (de) 1975-01-30
CA1006125A (en) 1977-03-01
DE2430008C2 (de) 1983-04-07
ES427697A1 (es) 1976-08-01
GB1429400A (en) 1976-03-24
JPS5834620B2 (ja) 1983-07-28

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