US3027026A - Excavators, notably trenchers - Google Patents

Excavators, notably trenchers Download PDF

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Publication number
US3027026A
US3027026A US66654A US6665460A US3027026A US 3027026 A US3027026 A US 3027026A US 66654 A US66654 A US 66654A US 6665460 A US6665460 A US 6665460A US 3027026 A US3027026 A US 3027026A
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United States
Prior art keywords
boom
pivot pin
arm
pin
yoke
Prior art date
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Expired - Lifetime
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US66654A
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English (en)
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Couquet Hubert
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Individual
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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
    • E02F3/28—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
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F3/303—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 with the dipper-arm or boom rotatable about its longitudinal axis
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • 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
    • Y10S37/00—Excavating
    • Y10S37/906—Visual aids and indicators for excavating tool

Definitions

  • EXCAVATORS NOTABLY TRENCHERS Filed Nov. 1, 1960 3 Sheets-Sheet 3 3,027,026 EXCAVATORS, NUTABLY TRENCHERS Hubert Couquet, Paris, France, assignor to Usines Tanvez, Paris, France, a societe anonyrne Filed Nov. 1, 1960, Ser. No. 66,654 Claims priority, application France Feb. 12, 1960 7 Claims. (Cl. 214138) It is the chief object of this.
  • the boom is set angularly in the desired direction about a pivot pintle mounted in turn for pivotal movement in the vertical mesial plane of the framework or like supporting structure about an axis perpendicular to said mesial plane, said boom having mounted on its outer end a pivot pin carrying in turn at r 1 i 4 f ee ii atent the right angles thereto a fulcrum pin held or keyed in a position parallel to said first pivot, the bucket arm being pivotally mounted about this fulcrum pin.
  • the parallelism between the two pins may be either obtained by means of a preliminary adjustment corresponding to the angle of lateral movement of the boom about its pivot pin, or maintained permanently irrespective of the boom movements, by adequate mechanical or hydraulic control means.
  • this invention comprises an arrangement permitting in all cases a complete lateral movement of the boom in either direction, so that the operator may easily discharge the bucket on the desired side and with the maximum boom divergence after each dredging stroke.
  • FIGURE 1 is a perspective view showing the trencher or digger cutting or clearing a ditch along a wall.
  • FIGURE 2 is an enlarged view showing one portion of FIG. 1, to illustrate the mounting of the boom on the framework.
  • FIGURE 3 is an exploded view showing the main component elements of FIG. 2.
  • FIGURE 4 is a fragmentary view showing one portion of the structure of FIG. 1 to illustrate the manner in which the bucket arm is mounted on the boom end.
  • FIGURE 5 is an exploded view showing the main component elements of the structure of FIG. 4.
  • FIGURE 6 is a diagrammatic view taken upon the plane of the bucket arm and of its pivot pin to show the relative arrangeemnt of the boom and bucket arm for working in the vertical mesial plane of the framework.
  • FIGURE 7 is a diagrarnamtic similar view showing the relative arrangement of the boom and bucket arm for digging laterally without utilizing special means for operating in a position of maximum boom divergence from the mesial plane.
  • the machine comprises a framework or A-frame 1 provided with means for anchoring it on the ground.
  • a fixed nut 2 in which a screw ring or socket 3 formed with peripheral notches is threaded.
  • This ring is rotatably mounted in turn on a column 4 constituting the shaft of a wheel 5 having on the one hand a semi-circular sector formed with gear teeth meshing with the gear teeth formed on another toothed sector 6 visible in FIG. 1 and adapted to be rotated by adequate means (not shown), for example in the form of a pair of hydraulic cylinders and, on the other hand, another sector carrying a scale.
  • the upper face of this wheel 5 is formed, in addition, with a circular set of radial notches.
  • the upper face of column 4 is rigid with a plate 7 having its lower face formed with a circular set of notches corresponding to those of wheel 5, the outer periphery of this plate 7 carrying a reference mark 14 corresponding to the peripheral scale of wheel 5.
  • the upper faceof plate 7 carries a pair of bearings. Mounted between these bearings is a socket 9 adapted to pivot about a shaft 8 inserted therein and also in the pair of bearings carried by the plate '7.
  • the socket 9 is rigid with a pivot pin 10 extending at right angles thereto and engaging the bearings of a yoke 11 carried by the foot of the boom 12, the pivot pin being formed with splines so as to be rotatably solid with an angular adjustment member 13 also mounted in the yoke 11.
  • the outer periphery of this member 13 is formed with a worm gear toothed sector and with a dia-metrally opposite plain sector carrying a scale to be read in front of a reference index or pointer 15 carried by the yoke 11.
  • a worm gear 16 meshing with the toothed sector of member 13, this worm gear 16 being formed with square-sectioned ends for operating same from one or the other side, these ends projecting from either side of the yoke 11.
  • the plate 7 and therefore pivot pin 8 of boom 12 are set by the wheel 5 in an angular position which may be determined at will by rotatably driving the wheel 6.
  • the lufiing movement of boom 12, that is, its angular movements about the pivot pin 8, may be obtained through any suitable and known means such as a hydraulic cylinder 36 (see FIG. 1) having one end pivoted on the framework 1 and the other end pivotally attached to the boom 12 proper.
  • the outer end of boom 12 is formed like its root with a yoke 17 in which a member 19 is pivotally mounted by means of a pin 2! having plain portions journalled in the bearings of yoke 17 and a splined portion engaging a correspondingly splined axial bore formed in the member 19.
  • the outer periphery of this member 19 like the member 13 is formed on the one hand with a worm gear toothed sector meshing with a corresponding worm gear 2t mounted across the yoke 17 and on the other hand with a diametrally opposite sector carrying a scale to be read in connection with a pointer 22 carried by the yoke 17.
  • the pivot pin 20 is rigid with a strap 23 formed with two bearings having their common axis disposed at right angles to the pivot axis. These two bearings carry a pin 24 for pivoting the bucket arm 25 having mounted on its outer end at 27 a bucket 26, as illustrated in FIG. 1.
  • the angular movements of this bucket 26 may be controlled in any known manner, for example by means of a hydraulic cylinder 28 hearing on the strap 23 (see FIGS. 1 and 4) and having the operating end of its piston rod pivoted at 29 on links controlling the angular movements of the bucket 26 about its fulcrum 27.
  • the screw 21 when the screw 21 is rotated, for example by inserting a crank on one of its square ends, so that until the pointer 22 of yoke 17 of boom 12 registers with the Zero of the scale carried by the member 19, the strap 23 will be in axial alignment with the boom 12 and the two pivot pins 24 and 29 will extend at right angles to the vertical axis of symmetry of this boom.
  • the rotation of arm 25 about its fulcrum 24 may be controlled through any known and suitable means, for example by means of a hydraulic cylinder 30 bearing against the boom 12 near the outer end thereof, the operating end of the cylinder rod being pivoted on a member 31 mounted in turn for sliding movement on the boom and connected through a link 32 to a suitable point of arm 25.
  • FIGURE 6 illustrates the relative arrangement of the component elements of the machine which is necessary for operating same in its vertical plane of symmetry. This arrangement can be obtained by simply operating the ring 3 and screws 16 and 21 after setting the pointers 1'4, 15 and 22 to their zero posiiton on the corresponding scales, the wheel being in its intermediate position.
  • the scales consist of odd numbers on one side of the zero, and of even numbers on the other side, in the increasing order from zero.
  • the pivot pin of the bucket arm may be set parallel to the lufting axis of the boom by operating a hydraulic cylinder controlled from the drivers cab.
  • the parallelism between the bucket arm fulcrum axis and the boom lufiing axis may also be maintained permanently by a mechanical connection or the like.
  • a mechanical connection may be obtained for example by means of links or connecting rods of same length and parallel to the boom, which interconnect the two pivot pins.
  • Another mechanical arrangement consists in interconnecting the boom lufiing pivot to the bucket arm pivot pin by means of a pair of pinions of same diameter which are keyed on these two pins and interconnected in turn by parallel racks slidably mounted on either side of the boom.
  • An excavator comprising a frame structure, a horizontal swivel pin mounted on said frame structure, means for adjusting at will the angular position of said swivel pin in relation to said frame structure, a pivot pin for mounting thereon the foot end of the excavator boom which is mounted for rotation about, and in a plane perpendicular to said horizontal swivel pin, a boom having a foot and a head, said boom foot being pivotally mounted about said pivot pin, means for adjusting the angular setting of said boom about said pivot pin, hydraulic means connected to said frame structure and said boom for controlling the angular movements of said boom about said horizontal swivel pin mounted in said frame structure, a pivot pin rotatably mounted in said boom head and parallel with the boom foot pivot pin, a boom head swivel pin secured at right angle to said boom head pivot pin, an arm mounted for angular movement about said swivel pin of the boom head, an excavator tool pivotally carried by said arm, means for adjusting
  • said boom foot comprises a yoke having two side members formed with holes and pivotally mounted by means of these holes in said boom foot pivot pin, said means for adjusting the angular setting of the boom in relation to said boom foot pivot pin comprising a member rigid with said pivot pin for effecting said angular setting, said member engaging the space between said two side members of the boom foot yoke and being formed with teeth disposed along a circular are which are turned towards the inside of said side members, and a boom foot operating member pivotally mounted in said boom foot, said operating member being formed on the one hand with a worm portion meshing with said teeth of said angular setting member and on the other hand with an end portion of square cross-section which projects from said boom foot for engagement by a suitable control crank handle.
  • An excavator as set forth in claim 2, comprising an index carried by the boom foot and a scale carried by the member for adjusting the angular setting of the boom on the side opposite to the teeth of said member and in front of said index.
  • said boom head is formed with a yoke having two side members former with holes, the boom head pin being pivotally mounted in said holes and formed with an extension in which the boom head swivel pin is mounted in a transverse plane, means for adjusting the angular setting of said pivot pin and said swivel pin of the boom head in relation to the boom proper, said angular setting adjustment means comprising a member for adjusting the angular setting of the arm which is rigid with said pivot pin and extend between the two side members of the boom head yoke, said member being formed between said two side members with a circular set of teeth, and a boom head assembly member pivotally mounted in said yoke and formed on the one hand with a worm portion meshing with said teeth and on the other hand with a portion projecting from said yoke and having a square crosssection for engagement by a suitable control crank handle.
  • An excavator as set forth in claim 4, comprising an index carried by the boom head and a scale carried by said member for adjusting the angular setting of said arm on the side opposite to said circular set of teeth in front of said index.
  • said means for adjusting at will the angular setting of said horizontal swivel pin mounted on said frame structure in relation to the frame structure proper comprise a horizontal circular plate rotatably mounted in said frame structure and provided with two bearings in which said horizontal swivel pin is rotatably mounted and with a lower notched circular contour, a screw drive being also provided for raising and lowering said circular plate and a carrier disc rigid with said frame structure and formed with a circular notched upper contour adapted to be drivingly engaged by the notched circular lower contour of said circular plate when said screw drive is actuated in the direction to allow said circular plate to descend.
US66654A 1960-02-12 1960-11-01 Excavators, notably trenchers Expired - Lifetime US3027026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR818448A FR1258258A (fr) 1960-02-12 1960-02-12 Pelle excavatrice travaillant dans un plan parallèle à l'engin porteur et à une distance variable de ce dernier

Publications (1)

Publication Number Publication Date
US3027026A true US3027026A (en) 1962-03-27

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ID=8725195

Family Applications (1)

Application Number Title Priority Date Filing Date
US66654A Expired - Lifetime US3027026A (en) 1960-02-12 1960-11-01 Excavators, notably trenchers

Country Status (8)

Country Link
US (1) US3027026A (xx)
BE (1) BE597281A (xx)
CH (1) CH369409A (xx)
DE (1) DE1291693B (xx)
FR (1) FR1258258A (xx)
GB (1) GB889919A (xx)
LU (1) LU39436A1 (xx)
NL (2) NL120152C (xx)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121503A (en) * 1961-12-20 1964-02-18 Alva L Lucas Swingable support for an excavating unit
US3149737A (en) * 1962-05-17 1964-09-22 Poclain Sa Hydraulic shovels
US3173561A (en) * 1962-08-28 1965-03-16 Priestman Brothers Boom construction for a mechanical excavator
US3247986A (en) * 1964-04-07 1966-04-26 Harnischfeger Corp Tool connection units for earth working machinery
US3289866A (en) * 1965-02-23 1966-12-06 Norman B Emery Back hoe dipper attachment for digging laterally sloped excavations
US3313431A (en) * 1964-08-19 1967-04-11 Bamford Excavators Ltd Excavators
US3386295A (en) * 1966-07-22 1968-06-04 Audie B. Tomlinson Swiveling tool support for earthworking machine
US3802525A (en) * 1972-02-14 1974-04-09 R Snow Trimmer type road construction apparatus or the like
US3999670A (en) * 1967-03-09 1976-12-28 Hinrich Weyhausen Excavator having a swivel joint between the main arm and the jib
US4049139A (en) * 1976-02-25 1977-09-20 Caterpillar Tractor Co. Backhoe with multi-movement capabilities
US4077140A (en) * 1976-03-31 1978-03-07 Societa Italiana Macchine Industriali Torino, S.P.A. Hydraulic excavator equipment for excavation laterally of the excavator
US4648780A (en) * 1985-08-26 1987-03-10 J. I. Case Company Truck mounted backhoe
US5553993A (en) * 1995-04-10 1996-09-10 Sylvain Gilbert Mechanism for rotating a tree-felling implement and tree-felling implement therewith
US5934147A (en) * 1992-10-02 1999-08-10 Telepoint New Zealand Limited Linkage arrangement
EP1013835A2 (en) 1992-10-02 2000-06-28 Telepoint New Zealand Limited Linkage arrangement
US6691752B2 (en) 2000-09-15 2004-02-17 Timberjack Inc. High rotation felling head mechanism
US20140123524A1 (en) * 2007-04-10 2014-05-08 Bradley V. Ayers Backhoe assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2175661B1 (xx) * 1972-03-17 1974-08-02 Pingon Pierre Joseph
FR2488234A1 (fr) * 1980-08-07 1982-02-12 Fernand Delpeyroux Machine porte-outil permettant en particulier d'effectuer un travail tel que broyage, debroussaillage, forage, en bordure des voies ferrees
US4938651A (en) * 1988-04-04 1990-07-03 Gilmore Transportation Service, Inc. Gear lock quick disconnect mechanism for articulated machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1829987A (en) * 1928-07-27 1931-11-03 Bucyrus Erie Co Back digging shovel
FR1155896A (fr) * 1955-06-29 1958-05-09 Orenstein & Koppel Ag Pelle avec godet à câble
US2927706A (en) * 1956-07-20 1960-03-08 Bucyrus Erie Co Hydraulically-operated dipper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23989E (en) * 1952-04-14 1955-04-26 Ditcher having slid able boom supported
US2764306A (en) * 1953-04-16 1956-09-25 L A Young Spring & Wire Corp Back hoe excavator
DE1768191A1 (de) * 1968-04-11 1970-04-30 Kyowa Chemicals Kabushiki Kais Verfahren zur Herstellung von gamma-Butyrolakton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1829987A (en) * 1928-07-27 1931-11-03 Bucyrus Erie Co Back digging shovel
FR1155896A (fr) * 1955-06-29 1958-05-09 Orenstein & Koppel Ag Pelle avec godet à câble
US2927706A (en) * 1956-07-20 1960-03-08 Bucyrus Erie Co Hydraulically-operated dipper

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121503A (en) * 1961-12-20 1964-02-18 Alva L Lucas Swingable support for an excavating unit
US3149737A (en) * 1962-05-17 1964-09-22 Poclain Sa Hydraulic shovels
US3173561A (en) * 1962-08-28 1965-03-16 Priestman Brothers Boom construction for a mechanical excavator
US3247986A (en) * 1964-04-07 1966-04-26 Harnischfeger Corp Tool connection units for earth working machinery
US3313431A (en) * 1964-08-19 1967-04-11 Bamford Excavators Ltd Excavators
US3289866A (en) * 1965-02-23 1966-12-06 Norman B Emery Back hoe dipper attachment for digging laterally sloped excavations
US3386295A (en) * 1966-07-22 1968-06-04 Audie B. Tomlinson Swiveling tool support for earthworking machine
US3999670A (en) * 1967-03-09 1976-12-28 Hinrich Weyhausen Excavator having a swivel joint between the main arm and the jib
US3802525A (en) * 1972-02-14 1974-04-09 R Snow Trimmer type road construction apparatus or the like
US4049139A (en) * 1976-02-25 1977-09-20 Caterpillar Tractor Co. Backhoe with multi-movement capabilities
US4077140A (en) * 1976-03-31 1978-03-07 Societa Italiana Macchine Industriali Torino, S.P.A. Hydraulic excavator equipment for excavation laterally of the excavator
US4648780A (en) * 1985-08-26 1987-03-10 J. I. Case Company Truck mounted backhoe
US5934147A (en) * 1992-10-02 1999-08-10 Telepoint New Zealand Limited Linkage arrangement
EP1013835A2 (en) 1992-10-02 2000-06-28 Telepoint New Zealand Limited Linkage arrangement
US5553993A (en) * 1995-04-10 1996-09-10 Sylvain Gilbert Mechanism for rotating a tree-felling implement and tree-felling implement therewith
US5590699A (en) * 1995-04-10 1997-01-07 Sylvain Gilbert Mechanism for rotating a tree-felling implement and tree-felling implement therewith
US5595225A (en) * 1995-04-10 1997-01-21 Sylvain Gilbert Mechanism for rotating a tree-felling implement and tree-felling implement therewith
US6691752B2 (en) 2000-09-15 2004-02-17 Timberjack Inc. High rotation felling head mechanism
US20140123524A1 (en) * 2007-04-10 2014-05-08 Bradley V. Ayers Backhoe assembly

Also Published As

Publication number Publication date
LU39436A1 (xx) 1961-01-19
CH369409A (fr) 1963-05-15
BE597281A (fr) 1961-03-15
NL120152C (xx)
DE1291693B (de) 1969-03-27
FR1258258A (fr) 1961-04-14
NL258631A (xx)
GB889919A (en) 1962-02-21

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