US3536147A - Replaceable ripper tip assembly - Google Patents

Replaceable ripper tip assembly Download PDF

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Publication number
US3536147A
US3536147A US696749A US3536147DA US3536147A US 3536147 A US3536147 A US 3536147A US 696749 A US696749 A US 696749A US 3536147D A US3536147D A US 3536147DA US 3536147 A US3536147 A US 3536147A
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US
United States
Prior art keywords
shank
tip
load member
ripper
assembly
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
US696749A
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English (en)
Inventor
William F Norton
Harris S Olson
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of US3536147A publication Critical patent/US3536147A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B15/00—Elements, tools, or details of ploughs
    • A01B15/02—Plough blades; Fixing the blades
    • A01B15/025—Plough blades; Fixing the blades specially adapted for working subsoil
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B13/00—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
    • A01B13/08—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation for working subsoil
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7018—Interfitted members including separably interposed key
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7075—Interfitted members including discrete retainer
    • Y10T403/7077—Interfitted members including discrete retainer for telescoping members
    • Y10T403/7079—Transverse pin
    • Y10T403/7086—Wedge pin
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7123—Traversed by connector

Definitions

  • a replaceable ripper tip assembly for mounting on a shank comprising a socketed ripper tip disposed on a tapered end of the shank, a load member surrounding the shank, abutting the tip below the shank and interlocking with the tip above the shank, and a shin guard disposed on a forward portion of the shank above the tip and load member.
  • the load member provides rapidly and simply replaceable means for effectively transferring ripping forces from the tip to the shank.
  • a socketed tip is replaceably secured upon a forwardly and downwardly extending tapered portion of the shank by a transverse pin in a generally horizontal position.
  • a shin guard is pinned to the shank and interacts with a rearward surface of the tip above the shank to resist upward motion of the tip.
  • a stop block is welded to the bottom of the shank so that it interacts with a rearward surface of the tip below the shank to resist downward motion of the tip.
  • the present invention simplifies necessary replacement of the ripper tip assembly and provides still greater strength as well as economy for those components.
  • a single replaceable load member transfers ripping forces from the tip to the shank and resists pivotal motion of the tip upon the tapered shank.
  • a load bearing member adjacent the tip is subject to greater wear than the shin guard. Accordingly, the two components are formed as separate parts.
  • One embodiment contemplates securing of the tip on the shank by forwardly overlapping relation of the load member thereto so that the need for a pin through the narrow portion of the shank is eliminated.
  • FIG. 1 is a side view of a ripper tip assembly mounted on a shank and having portions broken away to illustrate its construction according to the present invention
  • FIGS. 2 and 3 are views taken along section lines [HI and III-III respectively of FIG. 1;
  • FIG. 4 is a side view, with parts broken away, of an alternate ripper tip assembly
  • FIG. 5 is a view takenalong section lines V-V of FIG. 4.
  • FIG. 6 is a side view, with parts broken away, of a modification of the ripper tip assembly of FIG. 4.
  • a ripper tip and guard assembly 11, according to the present invention is replaceably mounted upon a shank I2 as shown in FIG. 1, which is carried by a suitable machine such as a tractor (not shown) in a conventional manner.
  • the shank 12 is of a conventional shape having a tapered end portion 13 projecting generally forwardly and downwardly.
  • the ripper tip assembly 11 has a generally conventional ripper tip 14 having a cutting edge or point I6 and a tapered socket 17 for receiving the tapered end portion 13 of the shank.
  • the ripper tip 14 is replaceably secured upon the shank by a suitable pin 18.
  • a load member 19 encircles the shank behind the tip.
  • the load member is replaceably secured upon the shank by a suitable load bearing pin 21 passing through respective bores 22 and 23 in the load member and shank.
  • the pin 21 has portions 24 of large cross section which extend between the bores 22 and 23 to withstand shear forces and resist failure.
  • the pin 21 has spreader means 26 to resist axial movement of the pin in its bores.
  • a shin guard 27 is replaceably secured to the shank above the ripper tip and load member by a pin 28 to reduce wear on the forward surface 29 of the shank during ripping operation.
  • the present invention resides particularly in the configuration of the tip I4 and load member 19 and the manner in which they cooperate to transfer ripping forces from the tip to the shank.
  • surfaces of the ripper tip 14 are subject to greatest wear while greater wear occurs in the region of the load member 19 than upon the surfaces of the shin guard 27 of the assembly.
  • the tip 14, member 19 and guard 27 are formed separately.
  • the load member 19 is designed to cooperate with the tip to transfer such forces into generally rearward portions of the shank which are of greater cross section and thus more resistant to failure.
  • the load member 19 which encircles the shank and is secured thereto by the load bearing pin 21 has a portion 31 spanning the bottom of the shank and acting as a stop for the tip.
  • the stop 31 is arranged for abutment with a rearward surface 32 of the ripper tip below the shank.
  • the ripper tip also has rearwardly facing stepped surfaces 33 and 34 generally at its rearward termination above the shank.
  • the load member has a forward projection 36 steppedsurfaces of the tip. As noted above, ripping forces are substantially transferred from the tipto the shank through the load bearing pin 21.
  • ripping forces which tend to pivot the tip 14 against the portion3l or projection 36 of the load member are at least partially transferred to the shank directlythrough those portions of the load member.
  • the tip tends to bepivoted downwardly or in a clockwise direction in FIG. 1, it engages the portion 31 of the load member which is urged against the shank and acts asa above the shank which generally mates and interlocks with the stop for the tip.
  • Upward or counterclockwise pivotal motion l surfaces 41 and 42 which generally mate with the portion 37 of the load member.
  • the load member secures the lower end of the shin guard upon the shank and obviates the need for a second retaining pin in the guard.
  • the present invention accordingly provides a load member which is readily replaceable, apart from the tip and shin guard, and effectively performs the functions of transferring ripping forces to the shank and resisting pivotal motion of the ripper tip.
  • FIGS. 4 and 5 An alternate embodiment of the ripper tip and shin guard assembly is illustrated in FIGS. 4 and 5 as having a generally similar rippertip 14, load member 19 and shin guard 27 separately replaceable on a shank 12'.
  • the tip 14, member 19 and guard 27' cooperate in a generally similar manner as described above with respect to FIG. 1. However, they are modified with at least the particular purpose of providing greater strength in the tapered shank position 13' which is most susceptible to failure because of its relatively small cross section.
  • the tip has rearwardly facing stepped surfaces 33' and 34' which tend to mate and interlock with a projection 36' of the load member in a generally similar manner as described for the embodiment of FIGS. 1-3. However, the tip extends rearwardly of the surfaces 33 and 34 to be partially surrounded by the load member 19' which is suitably formed to receive that portion of the tip. A projection 51 at the rear-.
  • the load member 19' is suitably recessed, as at 53, to receive and forwardly overlap the projecting portion 51 of the tip. By this arrangement. the load member serves the additional function of retaining the tip in place upon the shank. The necessity for a retaining pin (such as at 18 in FIG. 1) extending through the tip 14' and the tapered shank portion 13' is eliminated.
  • FIGS. 4 and 5 A modification of the embodiment of FIGS. 4 and 5 is illus- 52 (see FIG. 4), the tip has a multitude's'of forwardly stepped surfaces 61 generally in a sawtooth configuration.
  • the load member 19" is recessed as at 62, in a similar sawtooth fashion to generally mate and interlock with the surfaces 61 to retain the tip in place.
  • a particular advantageof the sawtooth configuration is to provide for substantially more uniform crosssectional area in adjacent portions of both the tip and the load member to further strengthen those parts.
  • a ripper tip having a socket substantially larger than the tapered shank end, the ripper tip being mounted on the shank end by means of its socket, the tip having a rearward portion above'the shank forming a rearwardly facing stepped surface, the tip also having a rearwardly facing surface below the shank; a load member encircling the shank behind the rippertip,
  • the load member being replaceably and pivotally secured to the shank by a load bearing pin
  • the load member hav: ing a projection interlocking in overlapping relation with the rearwardly facingstepped surface on the tip, the load member also having a poriton spanning the bottom of the shank for abutting engagement with the rearwardly facing surface of the tip below the shank, the load member being substantially free for pivotal motion about the load hearing pin when it is in engagement with the two rearwardly facing surfaces on the tip;
  • rearwardly extending tip portion has a sawtooth configuration trated in H6. 6 as having a similar tip 14'', load member 19" and guard member 27" mounted on the shank 12'.
  • a sawtooth configuration trated in H6. 6 as having a similar tip 14'', load member 19" and guard member 27" mounted on the shank 12'.
  • the load member instead of the single projection 51 and single forward surface and the recessed surface of the load member is of a sawtooth configuration to generally mate and interlock with the tip.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Agricultural Machines (AREA)
US696749A 1968-01-10 1968-01-10 Replaceable ripper tip assembly Expired - Lifetime US3536147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69674968A 1968-01-10 1968-01-10

Publications (1)

Publication Number Publication Date
US3536147A true US3536147A (en) 1970-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US696749A Expired - Lifetime US3536147A (en) 1968-01-10 1968-01-10 Replaceable ripper tip assembly

Country Status (7)

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US (1) US3536147A (US07935154-20110503-C00018.png)
BE (1) BE726193A (US07935154-20110503-C00018.png)
BR (1) BR6804904D0 (US07935154-20110503-C00018.png)
DE (1) DE1900608B2 (US07935154-20110503-C00018.png)
FR (1) FR1600572A (US07935154-20110503-C00018.png)
GB (1) GB1219170A (US07935154-20110503-C00018.png)
SE (1) SE339661B (US07935154-20110503-C00018.png)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704753A (en) * 1970-04-29 1972-12-05 Hector Bernard Hasforth Ripper shank
DE2237734A1 (de) * 1971-08-23 1973-03-15 Caterpillar Tractor Co Schneidkantenanordnung
US3851413A (en) * 1971-08-23 1974-12-03 Caterpillar Tractor Co Quick change cutting edge
US3897642A (en) * 1974-05-13 1975-08-05 Caterpillar Tractor Co Earth working tip and adapter construction
US3999614A (en) * 1970-12-11 1976-12-28 Caterpillar Tractor Co. Ripper tip with inter-fitting shin guard retaining means
US4013130A (en) * 1974-11-04 1977-03-22 Caterpillar Tractor Co. Ripper tip assembly
US4068594A (en) * 1976-02-04 1978-01-17 Crowell James E Tamping tool
US4326348A (en) * 1980-07-30 1982-04-27 Esco Corporation Excavating tooth assembly
US4576239A (en) * 1984-08-27 1986-03-18 Launder Richard L Scarifier tooth assembly
US4716667A (en) * 1986-09-25 1988-01-05 Gh Hensley Industries, Inc. Excavating tooth and wear cap assembly
US4799823A (en) * 1987-06-18 1989-01-24 Williams Thomas D Plow with readily replaceable wear parts especially adapted for use in a vibratory cable laying machine
US5350022A (en) * 1992-07-22 1994-09-27 H & L Tooth Company Attachment assembly for wear caps ripper teeth
US5778570A (en) * 1993-08-30 1998-07-14 Baz Service Ag Excavator tooth
US5964300A (en) * 1996-10-22 1999-10-12 Deere & Company Wear shin for a tillage implement
US6684963B1 (en) * 2002-10-10 2004-02-03 Deere & Company Knock-on sweep structure
US20050097789A1 (en) * 2003-10-29 2005-05-12 Dirk Asam Digging or gripping equipment
US20100155091A1 (en) * 2008-12-19 2010-06-24 Brian Cruson Furrow Opener with Replaceable Elongate Tip Body
US20130081833A1 (en) * 2011-09-30 2013-04-04 Caterpillar, Inc. Ripper tip for a ripper shank assembly
US8770311B2 (en) * 2011-09-30 2014-07-08 Caterpillar Inc. Ripper shank assembly
US8887826B2 (en) * 2011-09-30 2014-11-18 Caterpillar Inc. Shank protector for a ripper shank assembly
US20150271984A1 (en) * 2014-03-31 2015-10-01 Unverferth Manufacturing Company, Inc. Shark fin wear bar
US20160014950A1 (en) * 2013-03-11 2016-01-21 Betek Gmbh & Co. Kg Share tip and tool combination having a share tip
EP2430246A4 (en) * 2009-05-12 2017-06-14 YEOMANS, Allan James Digging point assembly
US9863126B2 (en) 2013-08-22 2018-01-09 Hensley Industries, Inc. Self-adjusting connector apparatus for telescoped ground engaging wear and support members
US20190047042A1 (en) * 2017-08-10 2019-02-14 Jeffery M. Reynolds Consumable shin for a tillage shank with adjustable depth fertilizer tube
GB2568517A (en) * 2017-11-17 2019-05-22 Mcconnel Ltd Improved tine shoe securing arrangement
US11105073B2 (en) * 2018-11-16 2021-08-31 Caterpillar Inc. Work implement assembly using a center adapter cover
US11178803B2 (en) 2019-08-22 2021-11-23 Cnh Industrial America Llc Replaceable shank wear shin

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5520877Y2 (US07935154-20110503-C00018.png) * 1976-03-03 1980-05-19
FR2541846B1 (fr) * 1983-03-04 1986-03-14 Kongskilde Koncernselskab As Soc perfectionne pour dents d'appareil travaillant dans le sol
US4932478A (en) * 1988-08-22 1990-06-12 Esco Corporation Tooth point for earth working
FR2667756A1 (fr) * 1990-10-16 1992-04-17 Thrige Agro As Dent de decompactage pour le travail du sol.
US5333696A (en) * 1992-11-02 1994-08-02 Caterpillar Inc. Reversible protector for a work member
DE102009004767B4 (de) 2009-01-15 2010-11-11 Fritz Güttler Säschar-Modul für die Direktsaat und Direktsaat-Maschinenkombination

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3704753A (en) * 1970-04-29 1972-12-05 Hector Bernard Hasforth Ripper shank
US3999614A (en) * 1970-12-11 1976-12-28 Caterpillar Tractor Co. Ripper tip with inter-fitting shin guard retaining means
DE2237734A1 (de) * 1971-08-23 1973-03-15 Caterpillar Tractor Co Schneidkantenanordnung
US3851413A (en) * 1971-08-23 1974-12-03 Caterpillar Tractor Co Quick change cutting edge
US3897642A (en) * 1974-05-13 1975-08-05 Caterpillar Tractor Co Earth working tip and adapter construction
US4013130A (en) * 1974-11-04 1977-03-22 Caterpillar Tractor Co. Ripper tip assembly
US4068594A (en) * 1976-02-04 1978-01-17 Crowell James E Tamping tool
US4326348A (en) * 1980-07-30 1982-04-27 Esco Corporation Excavating tooth assembly
US4576239A (en) * 1984-08-27 1986-03-18 Launder Richard L Scarifier tooth assembly
US4716667A (en) * 1986-09-25 1988-01-05 Gh Hensley Industries, Inc. Excavating tooth and wear cap assembly
US4799823A (en) * 1987-06-18 1989-01-24 Williams Thomas D Plow with readily replaceable wear parts especially adapted for use in a vibratory cable laying machine
US5350022A (en) * 1992-07-22 1994-09-27 H & L Tooth Company Attachment assembly for wear caps ripper teeth
US5778570A (en) * 1993-08-30 1998-07-14 Baz Service Ag Excavator tooth
US5964300A (en) * 1996-10-22 1999-10-12 Deere & Company Wear shin for a tillage implement
US6684963B1 (en) * 2002-10-10 2004-02-03 Deere & Company Knock-on sweep structure
US20050023013A1 (en) * 2002-10-10 2005-02-03 Poutre Benoit Jocelyn Knock-on sweep structure
US20050161239A1 (en) * 2002-10-10 2005-07-28 Poutre Benoit J. Knock-on sweep structure
US7070007B2 (en) * 2002-10-10 2006-07-04 Deere & Company Knock-on sweep structure
US7124836B2 (en) 2002-10-10 2006-10-24 Deere & Company Knock-on sweep structure
US20050097789A1 (en) * 2003-10-29 2005-05-12 Dirk Asam Digging or gripping equipment
US20100155091A1 (en) * 2008-12-19 2010-06-24 Brian Cruson Furrow Opener with Replaceable Elongate Tip Body
US7891436B2 (en) * 2008-12-19 2011-02-22 Brian Cruson Furrow opener with replaceable elongate tip body
EP2430246A4 (en) * 2009-05-12 2017-06-14 YEOMANS, Allan James Digging point assembly
US9297149B2 (en) * 2011-09-30 2016-03-29 Caterpillar Inc. Ripper tip for a ripper shank assembly
US20130081833A1 (en) * 2011-09-30 2013-04-04 Caterpillar, Inc. Ripper tip for a ripper shank assembly
US8770311B2 (en) * 2011-09-30 2014-07-08 Caterpillar Inc. Ripper shank assembly
US8887826B2 (en) * 2011-09-30 2014-11-18 Caterpillar Inc. Shank protector for a ripper shank assembly
US8967287B2 (en) * 2011-09-30 2015-03-03 Caterpillar Inc. Ripper tip for a ripper shank assembly
US20150167278A1 (en) * 2011-09-30 2015-06-18 Caterpillar Inc. Ripper tip for a ripper shank assembly
US9854721B2 (en) * 2013-03-11 2018-01-02 Betek Gmbh & Co. Kg Share tip and tool combination having a share tip
US20160014950A1 (en) * 2013-03-11 2016-01-21 Betek Gmbh & Co. Kg Share tip and tool combination having a share tip
US9863126B2 (en) 2013-08-22 2018-01-09 Hensley Industries, Inc. Self-adjusting connector apparatus for telescoped ground engaging wear and support members
US20150271984A1 (en) * 2014-03-31 2015-10-01 Unverferth Manufacturing Company, Inc. Shark fin wear bar
US9949421B2 (en) * 2014-03-31 2018-04-24 Unverferth Manufacturing Company, Inc. Shark fin wear bar
US20190047042A1 (en) * 2017-08-10 2019-02-14 Jeffery M. Reynolds Consumable shin for a tillage shank with adjustable depth fertilizer tube
US10993362B2 (en) * 2017-08-10 2021-05-04 Jeffery M. Reynolds Consumable shin for a tillage shank with adjustable depth fertilizer tube
GB2568517A (en) * 2017-11-17 2019-05-22 Mcconnel Ltd Improved tine shoe securing arrangement
US11105073B2 (en) * 2018-11-16 2021-08-31 Caterpillar Inc. Work implement assembly using a center adapter cover
US11149414B2 (en) * 2018-11-16 2021-10-19 Caterpillar Inc. Work implement assembly using a corner adapter cover
US11149415B2 (en) * 2018-11-16 2021-10-19 Caterpillar Inc. Work implement assembly using a center adapter mating with a notched base edge
US11697922B2 (en) 2018-11-16 2023-07-11 Caterpillar Inc. Work implement assembly using a center adapter mating with a notched base edge
US11178803B2 (en) 2019-08-22 2021-11-23 Cnh Industrial America Llc Replaceable shank wear shin

Also Published As

Publication number Publication date
BE726193A (US07935154-20110503-C00018.png) 1969-06-27
DE1900608A1 (de) 1969-07-31
SE339661B (US07935154-20110503-C00018.png) 1971-10-11
GB1219170A (en) 1971-01-13
DE1900608B2 (de) 1978-01-05
FR1600572A (US07935154-20110503-C00018.png) 1970-07-27
BR6804904D0 (pt) 1973-03-01

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