US3550691A - Adjustable ripper tip - Google Patents

Adjustable ripper tip Download PDF

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Publication number
US3550691A
US3550691A US686501A US3550691DA US3550691A US 3550691 A US3550691 A US 3550691A US 686501 A US686501 A US 686501A US 3550691D A US3550691D A US 3550691DA US 3550691 A US3550691 A US 3550691A
Authority
US
United States
Prior art keywords
tip
ripper
shank
adapter
pin
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
US686501A
Other languages
English (en)
Inventor
James M Davies
Larry G Hackmann
Robert A Peterson
Roger M Smith
Leon A Wirt
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 US3550691A publication Critical patent/US3550691A/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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2875—Ripper tips
    • 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
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins

Definitions

  • ABSTRACT A ripper in which the ground-engaging tip can [51] Int. Cl. A0lb 13/08 be advanced in it's holder to accommodate for wear of the [50] Field of Search 172/664, ripper tip.
  • the tip may be advanced manually or hydraulically depending on the mechanism used and is held in place by friction and/or a pinning means.
  • the tip may be advanced as wear erodes it, exposing a new point, after the initial point has been worn away,iby either'manual or hydraulic means. Since the advanceable point can be of nearly any desired cross section such as rectangular, square, or
  • FIG. 1 shows a side view, partly in section, of a mechanical feed-through ripper tip which is held in place by means of a pin extending through concentric holes in the shank and ripper tip;
  • FIG. 2 is a sectional view taken along line II-Il of FIG. 1 to .show the structural relationship of the ripper tip, the shank,
  • FIGS. 3, 4. and 5 show side views, partly in section, of alternate embodiments of the improved ripper tip and methods of holding the tips to the shank;
  • FIGS. 6, 7, and 8 are sectional views taken along lines .Vl-VI, VII-VII, and VlII-VIII of FIGS. 3, 4, and 5, respective- 3';
  • FIG. 9 is a view taken along line lX-IX of FIG. 5 so as to show another detail of the manner of holding the ripper tip to the shank in the embodiment of FIG. 5;
  • FIG. 10 shows another embodiment of the new ripper tip, illustrating in section the hydraulic means for advancing the tip through the shank.
  • FIGS. 1 and 2 there is shown in FIGS. 1 and 2 a mechanical feed-through ripper tip comprised of a shank 21 which has welded at its lower end an elongate rectangular-shaped adapter 23 which forms the downward projecting nose for the ripper shank.
  • a feedthrough tip 25 of round cross section is inserted in an aperture 27 on a longitudinal center line of the adapter 23.
  • the adapter 23 has machined therein coaxial pairs of holes 29, 31, 33, and 35 which extend from the periphery of the adapter to opposite sides of the aperture 27.
  • Ripper tip 25 has machined therein holes 37 and 39 which are machined on parallel lines transverse to the axis of tip 25.
  • pin 41 which may be of a tapered, press fit, or other suitable type of holding means, serves to hold the tip to the adapter by maintaining holes 29 and 37 in their coaxial relationship.
  • the pin 41 may be removed and the tip moved forward in the adapter so'that hole 39 becomes coaxial with hole 31. Pin 41 is then inserted into these coaxial holes and thereby holds the tip in the newly adjusted position.
  • hole 37 may be brought into a coaxial relationship with hole 31 and the pin inserted in this pair of holes. A similar relationship may be brought about between the tip and the adapter with respect to the holes 33 and 35 as the tip becomes further worn.
  • a telescopically fitted protector 43 mates with the forward end of the adapter 23 where it is retained by a pin 45 inserted in a pair of holes 47 of the protector and a hole 49 of the adapter.
  • the protector serves to protect the ripper shank from wear.
  • the central section of the pin 45 has a relief portion 51 which is tangent to the periphery of tip 25- when it is inserted into the adapter,
  • pin'45, and protector 43 are positively retained against adapter 23 when tip 25 is fitted within the assembly.
  • the protector 43 is a replaceable member and may be manufactured to be reversible by providing a second pair of holes 53 which may be positioned coaxially with aperture 49 in adapter 23.
  • a feed-through ripper tip 61 of square cross section is inserted in a mating hole 63 at the lower endof a ripper shank 65.
  • a retaining block 67 is attached to the rear of tip 61 by a tongue and groove connection 69, Three holes 71, 73, and 75 in block 67 are adapted to be selectively mated with any one of a plurality of holes 77, 79, 81, 83, and in the shank 65 and retained thereto by a pin 87 to advance the tip downwardly to accommodate for normal wear of the tip.
  • a U-shaped guard-89 protects the lower forward end of the ripper shank and is retained thereto by a retaining pin 91.
  • a feed-through tip 101 of round cross section extends through the lower end of a shank 103 and through a protector 105 telescopically wedged on nose 107.
  • the tip is retained in passages 109 in shank 103 and 111 of the protector by a round sliding bar 113 which is secured to the tip by a dovetail connection 115.
  • Adjustment of the tip downwardly is accomplished in the same manner as previously described where a plurality of holes such as 117 in the ripper shank are selectively mated with a plurality of holes such as 119 in the sliding bar 113 and a pin such as 121 extended therethrough.
  • an improved ripper with adjustable tip comprised of a shank 131 with a wedge-shaped nose 133 against which a rectangular tip 135 is wedged to a surface 137 by a telescopically fitted shank-protecting holder 139 which encompasses the nose and the tip.
  • Rearward extensions 141 of wedge-shaped holder 139 on each side of the ripper shank extend to a lateral cross section 143.
  • a U-shaped retainer 145 for the protector is inserted under the cross section 143 with projecting ears 147 engaging a slot 149 in the shank and a slot 152 in the rear surface of tip 135.
  • a U-shaped shin guard 161 of symmetrical configuration is installed over the leading edge of the ripper shank immediately above the protector 139 to prevent excessive wear of the shank 131.
  • the shin guard is retained in the shank by a retaining pin 163..
  • the tip extends through a replaceable guiding adapter and protector 229 which is wedged into a conical socket 231 on a leading edge of a ripper shank 233.
  • the head end of bore 227 is closed by a threaded plug 235.
  • Hydraulic fluid, grease, etc. is introduced into chamber 237 through a passage 239.
  • piston 225 is advanced downwardly within the bore causing ripper tip 221 to extend further through nose adapter 229.
  • a one-way check valve 241 in piston 225 permits any leakage of fluid from chamber 237 past piston 225 to be returned through the valve.
  • hydraulic lock of the piston is obviated.
  • plug 235 When ripper tip 221 is fully extended and piston 225 is at the bottom of bore 227, plug 235 may be removed by unscrewing it through any suitable means such as bolt head 2.43;, With plug 235 removed, the fluid is'removed and a b,olt;or-, other similar means may be inserted into threaded bore 245--in;-
  • the piston may-then be pulled back to the top of bore 227 and a new tip may be inserted and again selectively advanced under the influence .of the hydraulic fluid in shank means having a linear bore for receiving the back end of a ripper tip, said shank means having at least one transverse passage transecting said bore; a linear ripper tip element having a back end received in said bore of said shank means and being slidable longitu: v dinally therein, said tip having a front end extending 'for- I ward from said shank means;
  • a linear retainer disposed in said bore of saidsha nk means behind said tip element to form an extension thereof and having a forward end disengageably fastened to the back 7 end of said tip element, said retainer being slidable longitudinally in said bore to advance said tip element to compensate for wearing away of the front end thereof,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Friction Gearing (AREA)
  • Crushing And Grinding (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Agricultural Machines (AREA)
  • Soil Working Implements (AREA)
US686501A 1967-11-29 1967-11-29 Adjustable ripper tip Expired - Lifetime US3550691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68650167A 1967-11-29 1967-11-29

Publications (1)

Publication Number Publication Date
US3550691A true US3550691A (en) 1970-12-29

Family

ID=24756553

Family Applications (1)

Application Number Title Priority Date Filing Date
US686501A Expired - Lifetime US3550691A (en) 1967-11-29 1967-11-29 Adjustable ripper tip

Country Status (5)

Country Link
US (1) US3550691A (enrdf_load_stackoverflow)
BE (1) BE724425A (enrdf_load_stackoverflow)
DE (1) DE1803948A1 (enrdf_load_stackoverflow)
FR (1) FR1593444A (enrdf_load_stackoverflow)
GB (2) GB1239593A (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750761A (en) * 1971-09-27 1973-08-07 Caterpillar Tractor Co Ripper with top-mounted extendible tip
US3778112A (en) * 1969-06-30 1973-12-11 Cincinnati Mine Machinery Co Anti-coring device for use with bit mounting means on mining, earth working and digging machines
US3851413A (en) * 1971-08-23 1974-12-03 Caterpillar Tractor Co Quick change cutting edge
USD250713S (en) 1976-10-28 1979-01-02 Korpi Jouko K Ripper shield for construction and agricultural machinery
US4718182A (en) * 1985-04-24 1988-01-12 Sausar Holdings Pty. Limited Trencher with adjustable chisel
AU579727B2 (en) * 1985-04-24 1988-12-08 Sausar Holdings Pty. Ltd. Trench digging device
US4899830A (en) * 1987-05-21 1990-02-13 Maguina Larco Alfredo Cutting tooth assembly for heavy duty earth working machines
FR2643537A1 (fr) * 1989-02-27 1990-08-31 Trasol Sarl Dent perfectionnee pour le travail de la terre
US5127480A (en) * 1990-12-27 1992-07-07 Desta H M Tedla Reversible plow
US6012535A (en) * 1998-12-17 2000-01-11 Caterpillar Inc. Mounting arrangement for a ripper shank
US20050097789A1 (en) * 2003-10-29 2005-05-12 Dirk Asam Digging or gripping equipment
WO2007022579A1 (en) * 2005-08-24 2007-03-01 James A Calderwood An improved ripper boot
US20070235201A1 (en) * 2006-03-31 2007-10-11 Imed Gharsalli Machine with automated linkage positioning system
AU2006284527B2 (en) * 2005-08-24 2010-01-07 James A Calderwood An improved ripper boot
US20100269379A1 (en) * 2006-08-25 2010-10-28 Calderwood James A Ripper boot including a high tensile tip
US10604910B2 (en) * 2018-05-07 2020-03-31 Caterpillar Inc. Rock claw for demolition hammer
US11479925B2 (en) * 2018-06-01 2022-10-25 Joseph Voegele Ag Limiting plate of a road paver

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778112A (en) * 1969-06-30 1973-12-11 Cincinnati Mine Machinery Co Anti-coring device for use with bit mounting means on mining, earth working and digging machines
US3851413A (en) * 1971-08-23 1974-12-03 Caterpillar Tractor Co Quick change cutting edge
US3750761A (en) * 1971-09-27 1973-08-07 Caterpillar Tractor Co Ripper with top-mounted extendible tip
USD250713S (en) 1976-10-28 1979-01-02 Korpi Jouko K Ripper shield for construction and agricultural machinery
US4718182A (en) * 1985-04-24 1988-01-12 Sausar Holdings Pty. Limited Trencher with adjustable chisel
AU579727B2 (en) * 1985-04-24 1988-12-08 Sausar Holdings Pty. Ltd. Trench digging device
US4899830A (en) * 1987-05-21 1990-02-13 Maguina Larco Alfredo Cutting tooth assembly for heavy duty earth working machines
FR2643537A1 (fr) * 1989-02-27 1990-08-31 Trasol Sarl Dent perfectionnee pour le travail de la terre
EP0385900A1 (fr) * 1989-02-27 1990-09-05 Sa Trasol Dent perfectionnée pour le travail de la terre
EP0400767A3 (en) * 1989-06-01 1991-09-11 Alfredo Maguina-Larco Cutting tooth assembly
US5127480A (en) * 1990-12-27 1992-07-07 Desta H M Tedla Reversible plow
US6012535A (en) * 1998-12-17 2000-01-11 Caterpillar Inc. Mounting arrangement for a ripper shank
US20050097789A1 (en) * 2003-10-29 2005-05-12 Dirk Asam Digging or gripping equipment
RU2434998C2 (ru) * 2005-08-24 2011-11-27 Джеймс А. КАЛДЕРВУД Усовершенствованный рыхлительный наконечник
US20080229627A1 (en) * 2005-08-24 2008-09-25 Calderwood James A Ripper Boot
AU2006284527B2 (en) * 2005-08-24 2010-01-07 James A Calderwood An improved ripper boot
US7757778B2 (en) 2005-08-24 2010-07-20 Calderwood James A Ripper boot
WO2007022579A1 (en) * 2005-08-24 2007-03-01 James A Calderwood An improved ripper boot
JP4820414B2 (ja) * 2005-08-24 2011-11-24 ジエームス エイ カルダーウツド 縦挽き鋸ブーツ
US20070235201A1 (en) * 2006-03-31 2007-10-11 Imed Gharsalli Machine with automated linkage positioning system
US7647983B2 (en) 2006-03-31 2010-01-19 Caterpillar Inc. Machine with automated linkage positioning system
US20100269379A1 (en) * 2006-08-25 2010-10-28 Calderwood James A Ripper boot including a high tensile tip
US8104199B2 (en) * 2006-08-25 2012-01-31 James A Calderwood Ripper boot including a high tensile tip
US10604910B2 (en) * 2018-05-07 2020-03-31 Caterpillar Inc. Rock claw for demolition hammer
USRE49552E1 (en) * 2018-05-07 2023-06-13 Caterpillar Inc. Rock claw for demolition hammer
US11479925B2 (en) * 2018-06-01 2022-10-25 Joseph Voegele Ag Limiting plate of a road paver

Also Published As

Publication number Publication date
DE1803948A1 (de) 1969-06-19
FR1593444A (enrdf_load_stackoverflow) 1970-05-25
GB1239593A (enrdf_load_stackoverflow) 1971-07-21
GB1239592A (enrdf_load_stackoverflow) 1971-07-21
BE724425A (enrdf_load_stackoverflow) 1969-05-27

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