EP0246228A1 - Outil de damage - Google Patents

Outil de damage

Info

Publication number
EP0246228A1
EP0246228A1 EP19850906144 EP85906144A EP0246228A1 EP 0246228 A1 EP0246228 A1 EP 0246228A1 EP 19850906144 EP19850906144 EP 19850906144 EP 85906144 A EP85906144 A EP 85906144A EP 0246228 A1 EP0246228 A1 EP 0246228A1
Authority
EP
European Patent Office
Prior art keywords
blade
tool
bevel
weld
foot
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.)
Withdrawn
Application number
EP19850906144
Other languages
German (de)
English (en)
Inventor
Michael R. Grant
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0246228A1 publication Critical patent/EP0246228A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines

Definitions

  • each of which tools includes a shaft for mounting on the reciprocating mechanism in a specific tamping apparatus and at least one shank having a cross-section of selected shape extending from the shaft, with a tool foot removably pinned to the shank.
  • a blade is provided on the extended end of the tool foot for tamping the ballast responsive to operation of the ballast apparatus.
  • This invention relates to railroad ballast tamping equipment and more particularly, to metal tamping tools which are designed for use in ballast tamping machines of various design and include a shaft configured to mount in the ballast tamping machine of choice, a shaped shank extending from the shaft, a weld ring or nut fitted on the shank and welded to the shaft and a hollow tool foot seated on the shank and welded to the weld ring.
  • the tool foot is integrally formed with a tamping blade which is offset from the longitudinal eenterline of the tool foot and the tool foot is internally configured to fit a tapered shank.
  • the tool foot Since the tool foot is welded in position on the shank using a weld ring or nut, it is easily replaced by cutting the weld with a torch when the blade is worn to an undesirable extent.
  • the shaft of the tamping tool is designed to fit the reciprocating mechanisms on such automatic tamping machines as the "Jackson”, “Plasser”, and “Canron” ballast tamping machines, in non ⁇ exclusive particular.
  • the blade portion of the tool foot is secured to the tool foot by means of bolts or cap screws.
  • the tamping tools of this invention generally include a tool base or shaft which is adapted to mount in one or more of the respective tamping machines, which shaft is fitted with a rigid, tapered shank of uniform design and configured to receive a weld ring or nut and a tool foot having a tapered recep ⁇ tacle.
  • the tool foot is welded to the weld ring or nut, which weld ring or nut is, in turn, welded to the tool shaft in order to facili ⁇ tate rapid and convenient replacement of the tool foot by cutting the tool foot from the shank at the weld ring or nut.
  • Ballast tamping tools for packing and securing ballast against and under rail cross-ties in railroad beds are well known in the art.
  • such tools have been mounted on recipro ⁇ cating outriggers attached to rail-mounted tamping machines of various description.
  • the outriggers are positioned over the extending ends of the railroad cross-ties and multiple tamping tools, which are bolted or otherwise attached to the outriggers, project downwardly toward the ballast located around, between and beneath the cross-ties.
  • a blade is typically formed integrally with, or is welded or bolted to the extending end of a tool shaft in each of the tamping tools and multiple blades are sequentially plunged into the ballast at points adjacent the cross-ties to pack the ballast around and under the cross-ties as the tool shafts reciprocated and laterally articulated by the outrigger mechanism.
  • the tamping tools are retracted and the tamping machine apparatus is advanced on the rails to locate the tamping tools over cross-ties spanning unpacked ballast.
  • Tamping tools of various design for use in track ballast tamping or packing machines are known in the art. Typical of these designs is the tool disclosed in U.S. Patent No. 2,726,871, dated December 13, 1955, to F. Schnellmann and entitled "Attachment of Picks on Tracking-Packing Machines". This patent details the attachment of a pick or tamping device on track packing machines, wherein that segment of the pick which is clamped on the machine is smooth and cylindrical in shape and engages a slotted sleeve in the pick arm, the slotted sleeve tightened by multiple screws to effect gripping of the pick at longitudinally separated points.
  • Stewart discloses a "Reversible Tamping Bar” which includes a pair of elongated tamping tool supports with lateral bores adapted for alignment with a common nose bore to receive a bolt for securing the supports on each side of a nose member.
  • the nose member is provided with four inwardly inclined faces for mating with inclined faces in the supports, such that any tendency of the supports to move upwardly places the bolt in tension.
  • a "Ground Engaging Unit for Ballast Tamping Machines” is disclosed in U.S. Patent No. 3,826,025, dated July 30, 1974, to William A. Elliott. This device includes an upper shaft for connection to a tamping machine and a lower portion for receiving a replaceable shoe.
  • the shoe is attached to the shaft in a wedge-fit and in another embodiment an adhesive is used to effect the desired con ⁇ nection.
  • Another "Tamping Tool” is disclosed in U.S. Patent No. 4,068,594, dated January 17, 1978, to James E. Crowell, which tool is characterized by a shank and a detachable blade.
  • a detachable wedge is inserted between the upper por ⁇ tion of the foot member and the shank and in a second embodiment, an arcuate joint is provided between the foot member and the shank.
  • the upper portion of the shank is designed to mate with a reciprocating member in a tamping machine.
  • Haywood details a "Percussive Tool with Replaceable Work Bit”.
  • This tool includes a replaceable tamping foot for mounting in a shank by a tapered force fit. A repulsive force is generated between the shank and the tamping foot by means of a grease gun to remove the foot from the shank.
  • German Patent No. 2,723,551 details a pick shaft designed for mounting in a railroad track com ⁇ pacting machine and provided with a cavity which receives a projecting pin mounted in a tool foot, for removably securing the tool foot on the pick shaft.
  • Another object of the invention is to provide new and improved metal tamping tools which are designed for mounting in various ballast tamping machines and are each characterized by a shaft configured to mount on a tamping machine of selected design, a uni ⁇ tary, hollow tool foot and offset blade which are designed for maximum strength and efficiency and a shank extending from the shaft and eon- figured to receive both a weld ring or nut and the tool foot, which weld ring or nut is welded to the shaft and to the tool foot.
  • Still another object of this invention is to provide a tamping tool for use in automatic ballast tamping machines such as the Canron, Plasser and Jackson machines, in non-exclusive particular, which tool includes a shaft configured to mount in the machine, a round, tapered shank formed integrally with the shaft and provided with a weld ring or nut at the upper end, which weld ring or nut is welded to the shaft, a foot member having an internal receptacle shaped to receive the shank and also welded to the weld ring or nut and a unitary, offset blade shaped in the extending end of the foot member.
  • Still another object of this invention is to provide improved tamping tools for attachment to a ballast tamping apparatus, and more particularly, tamping tools which include a shaft adapted for attach ⁇ ment to a reciprocating outrigger in the tamping apparatus, a shank member having a tapered end extending from the shaft, a weld ring or nut fitted on the shank member and welded to the shaft and an improved tool foot having a receptacle designed to snugly receive the shank member and welded to the weld ring or nut, the tool foot also carrying an offset tamping blade, with a bolt or cap screw securing the tamping blade to the tool foot in order to facilitate easy replacement of the tamping blade and the tool foot as a result of wear in the tamping blade.
  • Another object of the invention is to provide a new and improved tamping tool for use in automatic ballast tamping machines, which tool is characterized by a shaft provided with a shaped upper end for removable attachment to a ballast tamping machine, a round, tapered shank extending from the shaft, a weld ring slidably fitted on the shank and welded to the shaft and an improved tool foot having a tapered internal cavity in a receiving end and a blade bolted on the opposite end in offset relationship with respect to the longitudinal eenterline of the tool foot, the receiving end of which tool foot is seated on the tapered shank and welded to the weld ring, wherein the tamping tool can be selectively unbolted from the tamping machine, the tool foot cut from the weld ring with a torch and then removed from the tamping tool shank and the blade unbolted from the tool foot, as desired.
  • Yet another object of the invention is to provide a tamping tool which is characterized by exceptional strength and ease of main ⁇ tenance and includes a shaft having one end configured for attachment to a ballast tamping machine of corresponding design and the opposite end including a round, tapered shank which slidably receives a cooperating weld ring or nut which is welded to the shaft, the shank also designed to receive and mount a hollow tool foot by welding the tool foot to the weld ring or nut.
  • a blade segment is optionally attached to the tool foot by means of bolts or cap screws welded to the tool foot, or is formed integrally with the tool foot.
  • Another object of this invention is to provide an improved tamping tool for attachment to a ballast tamping apparatus, which tool includes a base or shaft configured and adapted for attachment to a reciprocating outrigger in the tamping apparatus, a round, shaped shank projecting from the shaft, a weld nut fitted on the shank and welded to the shaft and a foot having a hollow interior also fitted on the shank and welded to the weld nut, the foot carrying a flange fitted with a shaped tamping blade which is offset from the longitudi ⁇ nal eenterline of the foot.
  • a still further object of the invention is to provide a new and improved tamping tool which is characterized by a shaped shank extending from a base or shaft member configured to mount in a ballast tamping machine; a weld ring or nut fitted on the shank and welded to the shaft; a tool foot member having an internal cavity configured to snugly receive the shaped shank and also welded to the weld ring or nut and a blade flange carrying a tamping blade and provided with an opening to threadibly receive a bolt or capscrew and removably retain the tamping blade on the shaped shank.
  • metal tamping tools for use in automatic ballast tamping machines, which tools each include an elongated base or shaft having one end shaped and adapted to cooperate with a selected tamping machine and the other end configured to define a round shank of reduced diameter and having a tapered end.
  • a weld ring or nut is slidably fitted on the shank and is welded to the shaft and the shank is configured to register with a shaped receiving receptacle provided in one end of a tool foot, which tool foot is also welded to the weld ring or nut and fixedly carries an offset tamping blade at the opposite end.
  • a removable, offset-mounted tamping blade is attached to the opposite end of the tool foot by means of cap screws.
  • FIGURE 1 is an exploded view of various tamping tools designed to fit the Canron, Plasser and Jackson tamping tools according to this invention
  • FIGURE 2 is a top elevation of a weld ring used to secure a tool foot on the depending shank of the Canron and Plasser tamping tools of this invention
  • FIGURE 3 is a top elevation of a weld nut used to secure a tool foot on the shank of the Jackson tamping tool according to this invention
  • FIGURE 4 is a perspective view of the weld ring illustrated in FIGURE 2;
  • FIGURE 5 is a perspective view of the weld nut illustrated in FIGURE 3;
  • FIGURE 6 is a side elevation, partially in section, of a typical fixed tool foot used in the tamping tool of this invention;
  • FIGURE 7 is a side elevation, partially in section, of a typical removable tool foot used in the tamping tool of this inven ⁇ tion.
  • FIGURE 8 is a rear elevation, partially in section, of the fixed tool foot located in position for welding on the shank of a tamping tool according to this invention.
  • FIGURE 1 of the drawings various cast iron or steel tamping tools are used by way of illustration according to this invention, including the Canron tamping tool 1, the Plasser tamping tool 12 and the Jackson tamping tool 17.
  • the Canron tamping tool 1 is characterized by a conventional round, tapered Canron shaft 2, provided with a threaded longitudinal Canron mount aperture 3 for connecting the Canron shaft 2 to a Canron tamping machine (not illustrated).
  • the taper in the round Canron shaft 2 terminates at a shoulder margin 5 which defines a Canron shaft shoulder 4, from which a specially designed round shank 6 depends.
  • the shank 6 is charac ⁇ terized by a shank base 7 of substantially uniform diameter, which diameter is smaller than the diameter of the Canron shaft 2 at the Canron shaft shoulder 4.
  • the shank base 7 joins the Canron shaft shoulder 4 at a shoulder radius 16 and terminates at a leg margin 9, from which a shank leg 8 extends.
  • the shank leg 8 is in turn ter ⁇ minated by a rounded shank tip 10 and in a preferred embodiment of the invention, the shank 6 is formed integrally with the conventional Canron shaft 2 by casting or forging production processes which are well known to those skilled in the art.
  • the Plasser tamping tool 12 is characterized by a round, tapered Plasser shaft 13, provided with a threaded Plasser mount aper ⁇ ture 14 for securing the Plasser shaft 13 to a conventional Plasser tamping machine (not illustrated).
  • the taper in the Plasser shaft 13 terminates at the shoulder margin 5, as in the Canron shaft 2 and a Plasser shaft shoulder 15 of substantially uniform diameter terminates the lower end of the Plasser shaft 13.
  • a round shank 6 extends from the Plasser shaft shoulder 15 and, as in the case of the Canron tamping tool 1, the shank 6 is characterized by a shank base 7 of substantially uniform diameter, which diameter is less than the diameter of the Plasser shaft 13 at the Plasser shaft shoulder 15.
  • the shank base 7 joins the Plasser shaft shoulder 15 at a shoulder radius 16 and terminates at a leg margin 9 and the tapered shank leg 8 extends from the shank base 7 at the leg margin 9 and is terminated by a rounded shank tip 10.
  • a Jackson tamping tool 17 having a generally square or rec ⁇ tangular shaped cross-sectional configuration, includes a Jackson shaft 18, provided with transverse Jackson mount apertures 19 for securing the Jackson shaft 18 to a Jackson tamping machine (not illustrated).
  • a Jackson shaft shoulder 20 is defined at the extreme bottom portion of the Jackson shaft 18 and a round shank 6 extends from the Jackson shaft shoulder 20, as in the case of the Canron tamping tool 1 and the Plasser tamping tool 12.
  • the shank 6 is also characterized by a shank base 7 of substantially uniform diameter, which diameter is less than the width of the Jackson shaft 18 at the Jackson shaft shoulder 20.
  • the shank base 7 joins the Jackson shaft shoulder 20 at a shoulder radius 16 and terminates in a leg margin and is extended at the leg margin 9 by a shank leg 8, which tapers to a shank tip 10.
  • Both the Canron tamping tool 1 and the Plasser tamping tool 12 are designed to receive either a fixed tool foot 41 or a removable tool foot 54 by means of a weld ring 22, as illustrated in FIGURES 1, 6 and 7. Since the shank 6 in both the Canron tamping tool 1 and the Plasser tamping tool 12 are identical in configuration, both the Canron tamping tool 1 and the Plasser tamping tool 12 are designed to receive either the fixed tool foot 41 or the removable tool foot 54 in the manner hereinafter described.
  • the weld ring 22 is designed to slidably engage the shank leg 8 and the shank base 7 of the shank 6 and seat against the Canron shaft shoulder 4 and the Plasser shaft shoulder 15, respectively, in both the Canron tamping tool 1 and the Plasser tool 12, in order to secure either the fixed tool foot 41 or the removable tool foot 54 to the Canron tamping tool 1 and Plasser tamping tool 12, as hereinafter more particularly described.
  • a tapered shaft receptacle 44 is provided in an elongated foot sleeve 42, which characterizes one element of the fixed tool foot 41.
  • the shaft receptacle 44 is shaped and designed to receive both the shank base 7 and the shank leg 8 of the shank 6 in both the Canron tamping tool 1 and the Plasser tamping tool 12, after the weld ring 22 has been inserted on the shank base 7 and lodged against the Canron shaft shoulder 4 in the Canron tamping tool 1, or the Plasser shaft shoulder 15 in the Plasser tamping tool 12.
  • the foot wall 43 in the foot sleeve 42 terminates in a sleeve shoulder 45 at the open end thereof and at a receptacle base 46 at the opposite end, and is of sufficient thickness and strength to facilitate secure mounting of the fixed tool foot 41 on each respective shank 6, while both the Canron tamping tool 1 and the Plasser tamping tool 12 are operated conven ⁇ tionally, according to the knowledge of those skilled in the art.
  • a sleeve shoulder bevel 53 is provided in the periphery of the sleeve shoulder 45 and a fixed blade 51 is integrally formed in the extending end of the foot sleeve 42 and the fixed blade 51, in combination with the foot sleeve 42, define the fixed tool foot 41.
  • the fixed blade 51 is mounted in offset relationship with respect to the longitudinal eenterline of the foot sleeve 42 of the fixed tool foot 41 and is provided with a blade bevel
  • An integrally formed sleeve flange 47 depends from the hollow segment of the foot sleeve 42 across the center face of the fixed blade 51, in order to strengthen the fixed blade 51 and the flange margins 48 and define the configuration of the sleeve flange 47 with respect to the fixed blade 51.
  • an alternative tool foot is provided in the configuration of the removable tool foot 54, which is also characterized by a tapered shaft receptacle 44 shaped in a foot sleeve 42 which is provided with a foot wall 43 of selected thickness.
  • the removable tool foot 54 terminates the open end of the foot sleeve 42 and as in the case of the fixed tool foot 41, the removable tool foot 54 is characterized by an integrally formed, depending sleeve flange 47 in the removable tool foot 54 includes a pair of internally threaded flange apertures 49 extending therethrough for threadibly receiving a pair of cap screws 50.
  • a removable blade 55 is shaped generally in the same con- figuration as the fixed blade 51 and is characterized by countersunk blade apertures 56 for securing the removable blade 55 to the sleeve flange 47 of the fixed blade 51 by means of cap screws 50.
  • the flange margins 48 of the sleeve flange 47 lie essentially in the same general location on the removable blade 55 as the flange margins 48 in the sleeve flange 47 and the removable tool foot 54 as the blade bevel 52 and removable blade 55 wear during operation of the tamping tools.
  • the removable blade 55 is secured to the sleeve flange 47 of the removable tool foot 54 in offset relationship with respect to the eenterline of the foot sleeve 42.
  • the weld ring 22 is charac ⁇ terized by a round ring body 23, provided with a top ring bevel 24 and a corresponding bottom ring bevel 25 and having a smooth ring bore 26 extending through the ring body 23.
  • a flat top ring margin 27 lies between the top ring bevel 24 and an inside ring bevel 29 and a corresponding flat bottom ring margin 28 is sandwiched between the bottom ring bevel 25 and a second inside ring bevel 29.
  • the inside ring bevel 29 receives the shoulder radius 16 and the top ring margin 27 seats against the Canron shaft shoulder 4 or the Plasser shaft shoulder 15, respectively.
  • the sleeve shoulder 45 of the foot sleeve 42 in each case fits flat against the bottom ring margin 28, thus sandwiching the weld ring 22 between the Canron shaft shoulder 4 or the Plasser shaft shoulder 15 and the respective sleeve shoulder 45.
  • the weld nut 31 is characterized by a square nut body 32 provided with a top nut bevel 33 and a bottom nut bevel 34, respectively, on all four sides.
  • a smooth nut bore 35 extends through the nut body 32
  • an inside nut bevel 30 is provided in the top margin of the nut bore 35
  • a flat top nut margin 36 is located between the inside nut bevel 30 and the top nut bevel 33.
  • a flat bottom nut margin 37 lies adjacent the nut bore 35 on the oppo ⁇ site side of the nut body 32 and extends to the contoured bottom nut bevel 34.
  • the inside nut bevel 30 accommodates the shoulder radius 16 in the Jackson shaft shoulder 20 and the top nut margin 36 is posi ⁇ tioned against the Jackson shaft shoulder 20.
  • either the fixed tool foot 41 or the removable tool foot 54 can be inserted on the shank leg 8 and the shank base 7 of the shank 6 in the Jackson tamping tool 17 until the sleeve shoulder 45 fits flat against the bottom nut margin 37 of the weld nut 31.
  • FIGURES 1, 3, 4 and 8 of the drawings when it is desired to use the weld ring 22 to secure a fixed tool foot 41 to the shank 6 of a Plasser tamping tool 12, the weld ring 22 is ini ⁇ tially inserted on the shank base 7 of the shank 6 until the top ring margin 27 lies flat against the Plasser shaft shoulder 15 , as illustrated in FIGURE 8.
  • the shank leg 8 and shank base 7 of the shank 6 are then inserted in the shaft receptacle 44 of the fixed tool foot 41 until the sleeve shoulder 45 lies against the bottom ring margin 28 of the weld ring 22, as further illustrated in FIGURE 8.
  • weld slots 39 are defined by the top ring bevel 24 and the outer edge of the Plasser shaft shoulder 15 and by the bot ⁇ tom ring bevel 25 and the sleeve shoulder bevel 53, respectively.
  • a shaft weld 38 and foot weld 40 are provided in the weld slots 39, respectively, to secure the fixed tool foot 41 to the Plasser shaft 13.
  • weld nut 31 can also be slipped on the shank 6 of the Jackson shaft 18 in the Jackson tamping tool 17 and either the fixed tool foot 41 or the removable tool foot 54 inserted on the shank 6 to create a pair of weld slots 39 at the top nut bevel 33 and at the bottom nut bevel 34 and corresponding sleeve shoulder bevel 53.
  • An additional shaft weld 38 and foot weld 40 are provided in these weld slots 39, respectively, to secure either the fixed tool foot 41 or the removable tool foot 54 to the Jackson shaft 18 of the Jackson tamping tool 17.
  • the tamping tools of this invention are characterized by great convenience and flexibility in that either the specially designed fixed tool foot 41 or removable tool foot 54 can be used on the Canron tamping tool 1, the Plasser tamping tool 12 and the Jackson tamping tool 17, as well as any other tamping tool which utilizes a cooperating, shaped shank 6 according to the teaching of this invention.
  • the remov ⁇ able tool foot 54 offers an additional convenience in replacement of the removable blade 55 due to wear by simply removing the cap screws 50, discarding the worn removable blade 55 and inserting a new remo ⁇ vable blade 55 on the sleeve flange 47 of the removable tool foot 54.
  • the foot weld 40 in the bottom one of the weld slots 39 is heated with a torch to cut the foot weld 40 away, in order to facilitate removal of the fixed tool foot 41 from the shank 6.
  • a new fixed tool foot 41 can be inserted on the shank 6 and a new foot weld
  • both the fixed tool foot 41 and the removable tool foot 54 facilitate failure of the foot sleeve 42 at or near the receptacle base 46 in the event that either the fixed blade 51 or the removable blade 55 strike an unyielding object during the ballast tamping opera ⁇ tion.
  • This failure occurs in the relatively thin foot wall 43 of the foot sleeve 42 and is calculated to prevent damage to the Canron shaft 2, Plasser shaft 13 and the Jackson shaft 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

Des outils de damage (1, 12, 17), destinés à être montés dans un appareil de damage du ballast tel que les machines de damage du ballast montées sur rail du type Canron, Plasser et Jackson conçues pour damer le ballast autour des traverses de voies de chemin de fer, doivent être remplacés périodiquement en raison de l'usure. De telles opérations de remplacement impliquent souvent qu'il faut démonter l'outil de damage de la machine. Les outils de damage de la présente invention comprennent chacun un arbre (2, 13, 18) conçu pour être monté sur un mécanisme à mouvement alternatif dans une machine de damage du ballast correspondant, une tige allongée (6), s'étendant à partir de l'arbre, et une rondelle (22) ou un écrou (31) de soudure soudé sur l'arbre et calé pour recevoir la tige profilée, le pied de l'outil étant soudé à la rondelle ou à l'écrou afin de permettre aisément son remplacement sur le lieu de travail. L'extrémité extensible du pied de l'outil est munie d'une lame (51, 55) selon une relation orthogonale, celle-ci étant dans un premier mode de réalisation solidaire avec le pied de l'outil et dans un second mode de réalisation la lame (55) est assemblée par boulons au pied de l'outil.
EP19850906144 1984-10-25 1985-11-27 Outil de damage Withdrawn EP0246228A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66454584A 1984-10-25 1984-10-25

Publications (1)

Publication Number Publication Date
EP0246228A1 true EP0246228A1 (fr) 1987-11-25

Family

ID=24666414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850906144 Withdrawn EP0246228A1 (fr) 1984-10-25 1985-11-27 Outil de damage

Country Status (2)

Country Link
EP (1) EP0246228A1 (fr)
WO (1) WO1987003316A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT5704U3 (de) * 2002-06-28 2003-06-25 Plasser Bahnbaumasch Franz Stopfpickel und verfahren zu dessen herstellung
US8061064B2 (en) 2007-05-10 2011-11-22 Esco Corporation Wear assembly for excavating equipment
EA025917B1 (ru) 2009-10-30 2017-02-28 Эско Корпорейшн Изнашиваемый элемент и изнашиваемый узел для землеройного оборудования
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US174449A (en) * 1876-03-07 Improvement in plow-points
US2726871A (en) * 1952-08-15 1955-12-13 Meer Ag Maschf Attachment of picks on track-packing machines
US3581664A (en) * 1968-12-23 1971-06-01 William A Kruse Tamper foot mounting arrangement
US3826025A (en) * 1970-03-30 1974-07-30 W Elliott Ground engaging unit for ballast tamping machines
US3677187A (en) * 1970-08-17 1972-07-18 Tamper Inc Reversible tamping bar
US3729055A (en) * 1971-03-24 1973-04-24 G Burridge Tamper bar for a tamping machine
US3774324A (en) * 1971-06-21 1973-11-27 Abex Corp Digger teeth
US4062291A (en) * 1975-02-24 1977-12-13 Vick Edward L Ballast tamping tool
US4068594A (en) * 1976-02-04 1978-01-17 Crowell James E Tamping tool
US4167141A (en) * 1977-05-11 1979-09-11 Haywood Glen H Percussive tool with replaceable work bit
DE2723551C3 (de) * 1977-05-25 1981-06-25 Horst 7185 Rot Pietz Gleisstopfpickel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8703316A1 *

Also Published As

Publication number Publication date
WO1987003316A1 (fr) 1987-06-04

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