WO1980001637A1 - Impact ripper - Google Patents

Impact ripper Download PDF

Info

Publication number
WO1980001637A1
WO1980001637A1 PCT/US1979/000077 US7900077W WO8001637A1 WO 1980001637 A1 WO1980001637 A1 WO 1980001637A1 US 7900077 W US7900077 W US 7900077W WO 8001637 A1 WO8001637 A1 WO 8001637A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
shank
ripper
pivot pin
impact
Prior art date
Application number
PCT/US1979/000077
Other languages
French (fr)
Inventor
D Cobb
R Livesay
Original Assignee
Caterpillar Tractor Co
D Cobb
R Livesay
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, D Cobb, R Livesay filed Critical Caterpillar Tractor Co
Priority to JP50145379A priority Critical patent/JPS56500020A/ja
Priority to PCT/US1979/000077 priority patent/WO1980001637A1/en
Priority to GB8022034A priority patent/GB2056531A/en
Priority to CA336,617A priority patent/CA1103446A/en
Publication of WO1980001637A1 publication Critical patent/WO1980001637A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers
    • E02F5/323—Percussion-type rippers

Definitions

  • This invention relates to earthworking machines and more specifically to impact rippers.
  • a ripper tip is mounted to a shank which is pivotally mounted to the tractor beam by a shank pivot pin.
  • Darrel M. ooldridge in TJ. S. Letters Patent 4,044,838, shows an automatic control for a ripper tool which is disposed substantially rearwardly of the major ⁇ ity of the mounting pins of the assembly.
  • the present invention is directed to overcoming one or more of the problems as set forth above.
  • the present invention comprehends an improved ripper structure utilizing an impact energy source mounted at the rear of an earthmoving machine, such as a tractor.
  • the impact ripper assembly is mounted to the beam of the tractor by a clevis-type mounting.
  • the ripper shank is pivoted from a point located on a line parallel to the impact surface and substantially above the surface.
  • shank pivot pin axis is disposed substantially vertically above the distal tip of the ripper.
  • shank -pivot pin axis is disposed substantially in intersecting relationship to the vertical axis of the clevis pivot pin pivotally mounting the assembly to the beam for swinging -movement about a vertical axis so as to provide limited side-to-side movement of the ripper in normal operation thereof.
  • the ripper includes a rock breaker mechanism for providing desirable impact forces to the ripper tip in the earthworking operation with the impact surface of the hammer of the rock breaker mechanism being accur ⁇ ately in parallel abutting relationship to the impact surface of the ripper tip shank at the point of impact in the operation of the apparatus.
  • the abutment of the impact surfaces defines a plane extending perpendicu ⁇ larly transversely to the ripper tip axis and in which lies a radius from the shank pivot pin axis extending perpendicularly to the ripper tip axis.
  • the present structure effectively mini ⁇ mizes wear of the shank pivot pin to provide long trouble- free life of the ripper assembly mounting to the tractor beam.
  • the ripper structure of the present invention is extremely simple and economical of construction while yet providing the highly desirable features discussed above.
  • FIGURE 1 is a fragmentary side elevation of an earthworking apparatus including a ripper structure embody- ing the invention.
  • FIGURE 2 is a fragmentary enlarged side elevation of the ripper structure.
  • a ripper assembly generally desig ⁇ nated 10 is shown as mounted to a beam generally designated 11 mounted on the rear portion 12 of a tractor 13.
  • the tractor includes suitable extensible elements 14 and 15, such as hydraulic cylinder devices, for controlling the disposition of the beam and, thus, the positioning of the ripper assembly in the operation thereof.
  • the in ⁇ vention is concerned with the mounting of the ripper assembly 10 to the beam 11 and, in the arrangement of the elements of the ripper assembly relative to such mounting, to provide an improved long life, troublefree operation.
  • the ripper assembly 10 includes a bracket 16 mounted to the beam 11 by a clevis 17.
  • the bracket carries a rock breaker mechanism 18 for providing an impact force to the shank 19 of a ripper generally designated 20 and provided at its lower end with a ripper tip 21.
  • a rock breaker mechanism 18 for providing an impact force to the shank 19 of a ripper generally designated 20 and provided at its lower end with a ripper tip 21.
  • the tip 21 is impacted by the mechanism 18 so as to provide an improved rock breaking ripping operation for facilitated earth working.
  • the clevis is provided with a clevis pin 22 which is arranged to define a substan ⁇ tially vertical axis 23 extending downwardly vertically to the distal end 34 of the ripper tip 21.
  • the clevis pin axis extends vertically upwardly to * perpendicularly intercept a horizontal axis 24 of a shank pivot pin 25 pivotally mounted to the bracket 16 and carrying the shank 19 for pivotal swinging about the axis 24.
  • the rip ⁇ per tip 21 is positionable about the vertical axis 23 of the clevis pivot and, in the illustrated embodiment, is swingable thereabout approximately 30°, i.e., 15° in each ' direction from the centered disposition.
  • the ripper tip 21 is swingable about the horizontal axis 24,. and more specifically, is arranged to provide an impact ripping action as a result of the impact forces generated thereon by the rock breaker mechanism 18 so as to provide a desired ripping force downwardly into the ground G, as shown in Figure 2 in the normal operation of the ripper assembly.
  • the impact force applying means may comprise a conventional rock breaker mechanism which may include a conventional operating motor 26.
  • the motor drives a con ⁇ ventional flywheel-crankshaf ring -impactor 27 well known to those skilled in the art and, thus, no further descrip ⁇ tion thereof need be given here.
  • the impactor device defines an impact surface 28 which impinges on a reaction impact surface 29 of the shank 19 in the impact ⁇ ing operation so as to apply an impact force to the shank so as to impact the ripper tip 21 into the ground G, as illustrated in Figure 2.
  • the surfaces 28 and 29 are accurately parallel so as to define a common plane when in abutment with each other, which plane contains a radius 30 from the horizontal shank pivot pin axis 24 extending per ⁇ pendicular to the axis 31 of the ripper tip 21.
  • the invention comprehends mounting the ripper assembly 10 to the beam 11 by means of an improved connection including the clevis pin 22 axially vertically aligned with the distal end 34 of the ripper tip 21.
  • the horizontal shank pin axis within the scope of the inven- tion, is disposed to substantially intersect the vertical clevis pin axis 23.
  • the impact surfaces be accurately par ⁇ allel so as to define a common plane when in abutment in the impacting operation, which plane defines a radius 30 of the shank pivot pin axis 24 and which perpendicularly intersects the ripper tip axis 31 which extends perpen ⁇ dicularly to the radius 30.
  • the vertical clevis pivot pin axis 23 is preferably vertically aligned with the dis ⁇ tal end 34 of the ripper tip and the horizontal axis 24
  • the invention comprehends that within the concept of substantial alignment thereof, the axis of the clevis pivot pin 22 may be disposed somewhat forwardly of this line in providing the desired force moment to assure turning of the unit into the rocks, etc. of the ground -G with effectively minimized side forces tending to wear the pivot pins of the device.
  • the impact sur ⁇ faces 28 and 29 are disposed at a 35° angle to the hori- zontal. Such disposition has been found to provide an excellent impacting operation which, when combined with the improved reduction of side forces acting on the shank pin, provides a long, highly efficient, troublefree life of the ripper assembly.
  • the ripper structure of the present invention may be utilized as an impact energy sourc such as mounted at the rear of an earthmoving machine.
  • an impact energy sourc such as mounted at the rear of an earthmoving machine.
  • On form of machine with which the ripper structure may be adva tageously utilized is a tractor.
  • the ripper assembly may be mounted to the beam of the tractor as by clevis-type mounting.
  • the impact ripper may be utilized as a conversion unit wherein a conventional rockbreaker device is converted to an impact rock trencher.
  • the apparatus when utilized in producing trenches, advantageously produced vertical sid walls and efficiently operated as an impact rock cruncher.

Abstract

An improved ripper assembly (10) wherein a ripper shank (19) is mounted to the beam (11) of a tractor by a clevis pin (22) so as to minimize side forces acting on the shank pin (25). The vertical axis of the clevis pin may be aligned with the distal end (34) of the ripper tip (21) and the horizontal axis (24) of the shank pivot pin (25). The impact surfaces (28, 29) of the impacting mechanism (18) and shank (19) preferably define a plane of abutment in which lies a radius (30) from the horizontal shank pivot pin axis (24). This plane is further preferably accurately perpendicular to the ripper tip axis (31) extending perpendicularly to the radius (30). The arrangement provides a free pivoting action of the ripper assembly about the vertical axis of the clevis pin so as to effectively minimize side loads for improved extended life of the ripper assembly (10).

Description

Description
Impact Ripper
Technical Field
This invention relates to earthworking machines and more specifically to impact rippers.
Background Art
In one form of conventional earth ripper, a ripper tip is mounted to a shank which is pivotally mounted to the tractor beam by a shank pivot pin. As a result of side loads acting on the ripper during the ripping opera¬ tion, the shank pivot pins have worn so that the pins, at times, were lost during the ripping operation, presenting serious safety and maintenance problems.
A number of different pivoting arrangements have been utilized in connection with such ripping devices. Il¬ lustratively, in U. S. Letters Patent 2,797,629 of Carlton 0. Kelley, a pivoted shank subsoil contour plow is shown wherein the distal tips of the plow blades are disposed directly below and in vertical alignment with the pivot pin mounting the blades to a frame member so as to prevent side draft at the tips of the plows.
Donald J. Larson, in U. S. Letters Patent 2,998,965, which patent is owned by the assignee hereof, shows a push block for a tractor-mounted ripper mounted to a tractor by a pair of draft arms. The ripper shank is provided with a ripper tip and connected with the tractor beam by a clevis pivotally connected to the beam by a clevis pin. The rip¬ per tip is spaced substantially rearwardly of the axis of the clevis pin. _ In U. S. Letters Patent 3,031,175 of Mack Woold- ridge, a ripper mounting for twin crawlers is shown wherein the ripper- tip is spaced rearwardly of the vertical axis of the clevis pin. Albert G. Bodine shows a sonic rectifier coup¬ ling for rock cutting apparatus in U. S. Letters Patent 3,367,716, wherein an impact device is engageable with an impact surface of the ripper shank at an angle there- to.
In U. S. Letters Patent 3,770,322, Delwin E. Cobb et al show an apparatus for fracture of material in situ with stored inertial energy which is cyclically deliv¬ ered on demand to the work tool, and which energy is stored in a large flywheel and delivered to the tool by suitable transmission means. The single pivot point disclosed by Cobb et al is indicated as preferably located ahead of the cutting tip to obtain the desired motion.
Darrel M. ooldridge, in TJ. S. Letters Patent 4,044,838, shows an automatic control for a ripper tool which is disposed substantially rearwardly of the major¬ ity of the mounting pins of the assembly.
Disclosure of Invention
The present invention is directed to overcoming one or more of the problems as set forth above.
The present invention comprehends an improved ripper structure utilizing an impact energy source mounted at the rear of an earthmoving machine, such as a tractor. The impact ripper assembly is mounted to the beam of the tractor by a clevis-type mounting.
In the illustrated embodiment, the ripper shank is pivoted from a point located on a line parallel to the impact surface and substantially above the surface.
Further, in the illustrated embodiment, the shank pivot pin axis is disposed substantially vertically above the distal tip of the ripper.
Still further in the illustrated embodiment, the shank -pivot pin axis is disposed substantially in intersecting relationship to the vertical axis of the clevis pivot pin pivotally mounting the assembly to the beam for swinging -movement about a vertical axis so as to provide limited side-to-side movement of the ripper in normal operation thereof.
The ripper includes a rock breaker mechanism for providing desirable impact forces to the ripper tip in the earthworking operation with the impact surface of the hammer of the rock breaker mechanism being accur¬ ately in parallel abutting relationship to the impact surface of the ripper tip shank at the point of impact in the operation of the apparatus.
In the illustrated embodiment, the abutment of the impact surfaces defines a plane extending perpendicu¬ larly transversely to the ripper tip axis and in which lies a radius from the shank pivot pin axis extending perpendicularly to the ripper tip axis.
Thus, the present structure effectively mini¬ mizes wear of the shank pivot pin to provide long trouble- free life of the ripper assembly mounting to the tractor beam. The ripper structure of the present invention is extremely simple and economical of construction while yet providing the highly desirable features discussed above.
Brief Description, of Drawing
FIGURE 1 is a fragmentary side elevation of an earthworking apparatus including a ripper structure embody- ing the invention; and
FIGURE 2 is a fragmentary enlarged side elevation of the ripper structure.
Best Mode for Carrying Out the Invention
In the exemplary embodiment of the invention as disdosed in the drawing, a ripper assembly generally desig¬ nated 10 is shown as mounted to a beam generally designated 11 mounted on the rear portion 12 of a tractor 13. The tractor includes suitable extensible elements 14 and 15, such as hydraulic cylinder devices, for controlling the disposition of the beam and, thus, the positioning of the ripper assembly in the operation thereof. The in¬ vention is concerned with the mounting of the ripper assembly 10 to the beam 11 and, in the arrangement of the elements of the ripper assembly relative to such mounting, to provide an improved long life, troublefree operation.
More specifically, as seen in Figure 1, the ripper assembly 10 includes a bracket 16 mounted to the beam 11 by a clevis 17. The bracket carries a rock breaker mechanism 18 for providing an impact force to the shank 19 of a ripper generally designated 20 and provided at its lower end with a ripper tip 21. In nor¬ mal operation, as the tractor is moved forwardly to draw the ripper into the ground G to be ripped, the tip 21 is impacted by the mechanism 18 so as to provide an improved rock breaking ripping operation for facilitated earth working.
Referring now more specifically to Figure 2, the structural arrangement of the ripper assembly may be more clearly seen. As shown, the clevis is provided with a clevis pin 22 which is arranged to define a substan¬ tially vertical axis 23 extending downwardly vertically to the distal end 34 of the ripper tip 21. The clevis pin axis extends vertically upwardly to* perpendicularly intercept a horizontal axis 24 of a shank pivot pin 25 pivotally mounted to the bracket 16 and carrying the shank 19 for pivotal swinging about the axis 24. Thus, the rip¬ per tip 21 is positionable about the vertical axis 23 of the clevis pivot and, in the illustrated embodiment, is swingable thereabout approximately 30°, i.e., 15° in each ' direction from the centered disposition. Concurrently, the ripper tip 21 is swingable about the horizontal axis 24,. and more specifically, is arranged to provide an impact ripping action as a result of the impact forces generated thereon by the rock breaker mechanism 18 so as to provide a desired ripping force downwardly into the ground G, as shown in Figure 2 in the normal operation of the ripper assembly.
The impact force applying means may comprise a conventional rock breaker mechanism which may include a conventional operating motor 26. The motor drives a con¬ ventional flywheel-crankshaf ring -impactor 27 well known to those skilled in the art and, thus, no further descrip¬ tion thereof need be given here. However, the impactor device defines an impact surface 28 which impinges on a reaction impact surface 29 of the shank 19 in the impact¬ ing operation so as to apply an impact force to the shank so as to impact the ripper tip 21 into the ground G, as illustrated in Figure 2. As shown in Figure 2, the surfaces 28 and 29 are accurately parallel so as to define a common plane when in abutment with each other, which plane contains a radius 30 from the horizontal shank pivot pin axis 24 extending per¬ pendicular to the axis 31 of the ripper tip 21. Thus, the invention comprehends mounting the ripper assembly 10 to the beam 11 by means of an improved connection including the clevis pin 22 axially vertically aligned with the distal end 34 of the ripper tip 21. The horizontal shank pin axis, within the scope of the inven- tion, is disposed to substantially intersect the vertical clevis pin axis 23.
It is further contemplated within the scope of the invention that the impact surfaces be accurately par¬ allel so as to define a common plane when in abutment in the impacting operation, which plane defines a radius 30 of the shank pivot pin axis 24 and which perpendicularly intersects the ripper tip axis 31 which extends perpen¬ dicularly to the radius 30.
As discussed above, the vertical clevis pivot pin axis 23 is preferably vertically aligned with the dis¬ tal end 34 of the ripper tip and the horizontal axis 24
-BtTREAT" O PI μ JPO ,Λ of the shank pivot pin. The invention comprehends that within the concept of substantial alignment thereof, the axis of the clevis pivot pin 22 may be disposed somewhat forwardly of this line in providing the desired force moment to assure turning of the unit into the rocks, etc. of the ground -G with effectively minimized side forces tending to wear the pivot pins of the device.
In the illustrated embodiment r the impact sur¬ faces 28 and 29 are disposed at a 35° angle to the hori- zontal. Such disposition has been found to provide an excellent impacting operation which, when combined with the improved reduction of side forces acting on the shank pin, provides a long, highly efficient, troublefree life of the ripper assembly.
Industrial Applicability
As indicated above, the ripper structure of the present invention may be utilized as an impact energy sourc such as mounted at the rear of an earthmoving machine. On form of machine with which the ripper structure may be adva tageously utilized is a tractor.
Further more specifically, the ripper assembly ma be mounted to the beam of the tractor as by clevis-type mounting.
The impact ripper may be utilized as a conversion unit wherein a conventional rockbreaker device is converted to an impact rock trencher. The apparatus, when utilized in producing trenches, advantageously produced vertical sid walls and efficiently operated as an impact rock cruncher. Other aspects, objects and advantages of this invention can be obtained from a study of the drawings, the disclosure and the appended claims.
O P
A WIP

Claims

Clai s
1. In a ripper assembly (10) having a beam (11) adapted to be secured to an earthworking machine, a clevis pivot pin (22) mounted to said beam to define a vertical pivot axis (23) , am impact breaker mechanism (18) , a shank (19) provided with a .shank pivot pin (25)), a ripper tip (21) defining a ripper tip axis (31) , and a bracket (16) pivotally mounted to the clevis pivot pin (22) and carrying the impact breaker mechanism (18) to apply an impact force to the shank (19) urging the ripper tip (21) about the axis (24) of the shank pivot pin (25), the improvement comprising means on said bracket (16) for mounting said shank pivot pin (25) to define a horizontal pivot axis (24) substantially intersecting said clevis pivot pin vertical axis (23) .
2. The ripper assembly of Claim 1 wherein said clevis pivot pin axis (23) substantially intersects the distal end (34) of the ripper tip (21) .
3. The ripper assembly of Claim 1 wherein said impact breaker mechanism is swingable about said shank pin axis (24) and said shank (19) defines an impact surface (.29) extending perpendicularly to the ripper tip axis (31) , said mechanism defining an impact means (18) impacting against said impact surface (29) accurately perpendicularly to said ripper tip axis (31) .
4. The ripper assembly of Claim 1 wherein said impact breaker mechanism is swingable about said shank pin axis (24) and said shank (19) defines an impact surface (29) extending perpendicularly to the ripper tip axis (31) , said mechanism defining an impact means (18) impacting against said impact surface (29) accurately perpendicularly to said ripper tip axis, said impact surface (29) extend¬ ing parallel to a radius (30) from said shank pivot pin axis (24) extending perpendicualrly to said ripper tip axis (31) .
5. The ripper assembly of Claim 1 wherein said clevis pivot pin axis (23) ' substantially intersects the distal end (34) of the ripper tip (21) , said impact break¬ er mechanism is swingable about said shank pin axis (24) and said shank (19) defines an impact surface (29) extend- ing perpendicularly to the. ripper tip axis (31) , said mechanism defining an impact means (18) impacting against said impact surface (29) accurately perpendicularly to said ripper tip axis (31) .
.,
6. The ripper assembly of Claim 1 wherein said clevis pivot pin axis (23) substantially intersects the distal end (34) of the ripper tip (21) , said impact break¬ er mechanism is swingable about said shank pin axis (24) and said shank (19) defines an impact surface (29) extend¬ ing perpendicularly to the ripper tip axis (31) , said mechanism defining an impact means (18) impacting against said impact surface (29) accurately perpendicularly to said ripper tip axis, said impact surface (29) extending parallel to a radius (30) from said shank pivot pin axis (24) extending perpendicularly to said ripper tip axis (31) .
7. In a ripper assembly (10) having a beam (11) adapted to be secured to an earthworking machine, a clevis pivot pin (22) , an impact breaker mechanism (18) , a shank (19) provided with a shank pivot pin (25) , a rip- per tip (21) defining a ripper tip axis (31) , and a bracket (16) pivotally mounted to the clevis pivot pin (22) and carrying the impact breaker mechanism (18) to apply an impact force to the shank (19) urging the ripper tip (21) about the axis (24) of the shank pivot pin (25) , the improvement comprising: means on said bracket (16) for mounting said shank pivot pin (25) to define a horizontal pivot axis (24) substantially vertically above the ripper tip (21) ; and means for mounting said clevis pivot pin (22) to said beam (11) to define a vertical pivot axis (23) substantially intersecting the distal end (34) of said ripper tip (21) .
8. The ripper assembly of Claim 7 wherein said impact surface (29) extends parallel to a radius (30) from said shank pivot pin axis (24) extending perpendicularly to said ripper tip axis (31) .
9. In a ripper assembly (10) having a beam
(11) adapted to be secured to an earthworking machine, a clevis pivot pin (22) mounted to said beam to define a vertical pivot axis (23) , an impact breaker mechanism (18), a shank (19) provided with a shank pivot pin (25), a ripper tip (21) defining a ripper tip axis (31) , and a bracket (16) pivotally mounted to the clevis pivot pin (22) and carrying the impact breaker mechanism (18) to apply an impact force to the shank (19) urging the ripper tip (21) about the axis (24) of the shank pivot pin (25) , the improvement comprising means defining planar, confronting impact forβe trans¬ fer surfaces (28,29) on said breaker mechanism (18) and shank (19) arranged to extend trans¬ versely to said ripper tip axis (31) , the abutment of said transfer surfaces defining a plane in which lies a radius (30) from said shank pivot pin axis (24) extending perpendicu¬ larly to said ripper tip axis (31) . . - 79/0
-10-
10. The ripper assembly of Claim 9 wherein said breaker mechanism (18) comprises means defining a first (28) of said force transfer surfaces (28,29) defining a plane containing at all times said radius (30) .
11. The ripper assembly of Claim 9 wherein said breaker mechanism (18) comprises means defining a first (28) of said force transfer surfaces (28,29) defining a plane containing at all times said radius and said shank (19) includes an anvil portion defining the other (29) of said surfaces (28,29) , said other (29) of said surfaces defining a plane extending perpendicularly to said ripper tip axis (31) at all times.
12. The ripper assembly of Claim 9 wherein said breaker mechanism (18) comprises means defining a first (28) of said force transfer surfaces (28,29.) defining a plane containing at all times said radius and said" shank (19) includes an anvil portion defining the other (29) of said surfaces (28,29), said other (29) of said surfaces defining a plane extending perpendicularly to said ripper tip axis (31) at all times, the line between the distal end (34) of the ripper tip (21) and said shank pivot pin axis (24) extending vertically.
13. The ripper assembly of Claim 9 wherein, said breaker mechanism (18) comprises means defining a first (28) of said force transfer surfaces (28,29) defining a plane containing at all times said radius and said shank (19) includes an anvil portion defining the other (29) of said surfaces (28,29), said other (29) of said surfaces defining a plane extending perpendicularly to said ripper tip axis (31) at all times, the line between the distal end (34) of the ripper tip (21) and said shank pivot pin axis (24) extending vertically'and being substantially coincident with said clevis pivot pin axis (23) .
OMPI >_m IP0
14. The ripper assembly of Claim 9 wherein said breaker mechanism (18) comprises means defining a first (28) of said force transfer surfaces (28,29) defining a plane containing at all times said radius and said shank (19) inclused an anvil portion defining the other (29) of said surfaces (28,29), said other (29) of said surfaces defining a plane extending perpendicularly to said ripper tip axis (31) at all times, the line between the distal end (34) of the ripper tip (21) and said shank pivot pin axis (24) extending vertically and being substantially coincident with said clevis pivot pin axis (23) , said shank (19) and breaker mechanism (18) being swingable as a unit approximately 30° about said clevis pivot pin axis (23).
PCT/US1979/000077 1979-02-12 1979-02-12 Impact ripper WO1980001637A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50145379A JPS56500020A (en) 1979-02-12 1979-02-12
PCT/US1979/000077 WO1980001637A1 (en) 1979-02-12 1979-02-12 Impact ripper
GB8022034A GB2056531A (en) 1979-02-12 1979-02-12 Impact ripper
CA336,617A CA1103446A (en) 1979-02-12 1979-09-28 Impact ripper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
WOUS79/00077 1979-02-12
PCT/US1979/000077 WO1980001637A1 (en) 1979-02-12 1979-02-12 Impact ripper

Publications (1)

Publication Number Publication Date
WO1980001637A1 true WO1980001637A1 (en) 1980-08-21

Family

ID=22147509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1979/000077 WO1980001637A1 (en) 1979-02-12 1979-02-12 Impact ripper

Country Status (3)

Country Link
JP (1) JPS56500020A (en)
GB (1) GB2056531A (en)
WO (1) WO1980001637A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455428C1 (en) * 2010-11-12 2012-07-10 Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) Ripper with spring-actuated bidirectional energy storage device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998965A (en) * 1960-03-23 1961-09-05 Caterpillar Tractor Co Push block for tractor mounted ripper
US3336082A (en) * 1964-10-07 1967-08-15 Jr Albert G Bodine Method and apparatus for ripping rock by sonically vibratory teeth
US3698484A (en) * 1970-11-25 1972-10-17 Frank R Kinnan Vibratory earth engaging shank
US3770322A (en) * 1971-04-12 1973-11-06 Caterpillar Tractor Co Apparatus for fracture of material in situ with stored inertial energy
US4003603A (en) * 1975-12-01 1977-01-18 Caterpillar Tractor Co. Impact means for ripper
SU568708A1 (en) * 1975-11-17 1977-08-15 Ордена Трудового Красного Знамени Ленинградский Инженерно-Строительный Институт Vibration ripper
US4070064A (en) * 1976-06-04 1978-01-24 Caterpillar Tractor Co. Cooling system for rock ripper tip

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998965A (en) * 1960-03-23 1961-09-05 Caterpillar Tractor Co Push block for tractor mounted ripper
US3336082A (en) * 1964-10-07 1967-08-15 Jr Albert G Bodine Method and apparatus for ripping rock by sonically vibratory teeth
US3698484A (en) * 1970-11-25 1972-10-17 Frank R Kinnan Vibratory earth engaging shank
US3770322A (en) * 1971-04-12 1973-11-06 Caterpillar Tractor Co Apparatus for fracture of material in situ with stored inertial energy
SU568708A1 (en) * 1975-11-17 1977-08-15 Ордена Трудового Красного Знамени Ленинградский Инженерно-Строительный Институт Vibration ripper
US4003603A (en) * 1975-12-01 1977-01-18 Caterpillar Tractor Co. Impact means for ripper
US4070064A (en) * 1976-06-04 1978-01-24 Caterpillar Tractor Co. Cooling system for rock ripper tip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455428C1 (en) * 2010-11-12 2012-07-10 Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) Ripper with spring-actuated bidirectional energy storage device

Also Published As

Publication number Publication date
GB2056531A (en) 1981-03-18
JPS56500020A (en) 1981-01-08

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