WO1988005483A1 - Ensemble de pieces de retenue efficace sur clavette de pointe a travailler la terre - Google Patents

Ensemble de pieces de retenue efficace sur clavette de pointe a travailler la terre Download PDF

Info

Publication number
WO1988005483A1
WO1988005483A1 PCT/US1987/003157 US8703157W WO8805483A1 WO 1988005483 A1 WO1988005483 A1 WO 1988005483A1 US 8703157 W US8703157 W US 8703157W WO 8805483 A1 WO8805483 A1 WO 8805483A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
groove
washer
retaining ring
ring
Prior art date
Application number
PCT/US1987/003157
Other languages
English (en)
Inventor
Mark Steven Diekevers
Jerry Dale Fidler
Brian D. Jensen
Original Assignee
Caterpillar Inc.
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 Inc. filed Critical Caterpillar Inc.
Priority to JP63502360A priority Critical patent/JP2614910B2/ja
Publication of WO1988005483A1 publication Critical patent/WO1988005483A1/fr

Links

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
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient

Definitions

  • This invention relates generally to a pin retainer assembly for securing an earthworking tip to an adapter on an earthworking device and more particularly to a keeper means for positively securing the pin in the apertures in the tip and the bore in the nose of the adapter.
  • U.S. Patent 3,624,827 issued to Richard K. Liess et al on November 30, 1971 discloses a retaining pin having a friction ring disposed in a deep, wide, central groove of the pin. The pin is retained in a bore defined by the adapter nose solely by friction between the ring and the bore. Although this type of pin has been successful in normal ripper and bucket tip retaining applications, the central groove materially reduces the strength of the pin and subjects it to early failure in extremely severe applications. In addition, the pin can vibrate out of the bore since it is not positively retained.
  • Patent No. 3,990,162 issued to Lloyd K. Heinold, et al on November 9, 1976 disclose spring clips that straddle diametrially opposite sides of the retaining pin in expanded friction engagement.
  • the clips are substantially encapsulated by an elastomeric material which aids in maintaining the spring clips in frictional engagement with the pins.
  • the spring clips only partially engage the pins and the pins are easily removed by the spreading of the spring clips.
  • an improved earthworking device so constructed that the earthworking tip is retained on the nose of the adapter by a pin that is positively retained in aligned apertures in the earthworking tip and the bore of the adapter.
  • the retaining pin is positively secured by a keeper means that is simple and economical in construction while maintaining the pin against outward axial movement during operation of the earthworking device.
  • the present invention is directed to overcoming one or more of the problems as set forth above.
  • a pin retainer assembly in one aspect of the present invention, includes a pin having an outer peripheral surface with an annular groove defined in the outer peripheral surface thereof, a washer slideably disposed on the pin and having an annular groove defined in an inner peripheral surface, and a resilent retaining ring which when assembled is disposed in locking engagement within the groove on the pin and the groove in the washer.
  • the retaining ring has a cross section with a predetermined radial thickness and one of the grooves in the pin and washer has a depth equal to or greater than the predetermined radial thickness of the retaining ring.
  • an earthworking device in another aspect of the present invention, includes an adapter having a nose defining a transverse bore and a earthworking tip telescopically mounted on the nose and having a pair of spaced apart side walls and a pair of axially aligned holes in the sidewalls.
  • the bore in the nose of the adapter and the holes in the sidewalls of the tip are substantially axially aligned.
  • a recess is formed in the nose or the tip and is in axial alignment with the bore and the holes.
  • a retaining pin having a groove disposed adjacent one end is slidably disposed in the aligned bore and the holes for retaining the tip on the adapter.
  • a keeper means for securing the pin in the bore is located in the recess and captured between the adapter and a sidewall of the tip and includes a metallic washer having an inside surface defining a bore and a groove opening into the bore.
  • a resilient retaining ring having a cross-section of a predetermined radial thickness is provided and is captured in one of the grooves in the pin and the washer and adapted to permit slidable insertion of the pin in the bores and the holes for locking engagement of the retaining ring with the other of the grooves.
  • One of the grooves in the pin and the washer has a depth equal to or greater than the predetermined radial thickness of the retaining ring and the other of the grooves has a depth and configuration sufficient to prevent camming of the ring out of the groove.
  • the retaining ring and washer being of a configuration sufficient to permit shearing of the retaining ring or fracture of the washer during disassembly.
  • Fig. 1 is an exploded isometric view of an earthworking device comprising an earthworking tip retained on the nose of an adapter by a retaining pin and a keeper means of the present invention
  • Fig. 2 is an enlarged cross-sectional view of an assembled earthworking device
  • Fig. 3 is an enlarged partial sectional view taken in the direction of arrows Ill-Ill in Fig. 2;
  • Fig. 4 is an enlarged cross-sectional view of the resilient retaining ring located in the groove of the pin and the groove of the washer;
  • Fig. 5 is an enlarged cross-sectional view of an alternate embodiment of the resilient retaining ring; and Fig. 6 is an enlarged cross-sectional view of an alternate embodiment of the subject invention.
  • an earthworking device 10 comprising a support member or adapter 12 having a tip 14 detachably mounted by a pin retainer assembly 15 on a forward end or nose 16 thereof.
  • the pin retainer assembly 15 includes a cylindrical pin 17 which has an outer peripheral surface 20 and an annular groove 21 defined therein.
  • a pair of beveled surfaces 18 and 19 are provided at the intersection of the outer peripheral surface 20 with the ends of the pin 17.
  • the nose 16, preferably of wedge shape, defines a transverse bore 22 and a pair of forwardly converging lateral sidewalls 24 and 26. It is noted that in some adapters 12, the sidewalls 24 and 26 may not be forwardly converging but be substantially parallel.
  • a recess 28 having an end wall 29 is formed in the lateral sidewall 24 of the nose 16 and in concentric relationship with the bore 22.
  • a wedge-shaped socket 30 is formed in the tip 14 to accommodate the like-shaped nose 16 of the adapter 12.
  • the nose preferably terminates at its apex defined by a surface 32 adapted to at least partially abut a surface 34 formed at the apex of recess 30 in the tip 14.
  • the tip 14 has a pair of forwardly converging spaced sidewalls 36 and 38 and a pair of laterally aligned holes 39 and 40 defined by peripheral surfaces 41 and 42.
  • the sidewalls 36 and 38 are normally designed to conform generally to the sidewalls 24 and 26 of the nose 16.
  • the holes 39 and 40 straddle bore 22 in the nose 16 and are in substantially axially alignment therewith.
  • the pin retainer assembly 15 also includes a keeper means 44 mounted in the recess 28 formed in the lateral wall 24 of the nose 16 for securing the pin 17 in the bore 22 of nose 16. It is recognized that the recess 28 could equally be formed in lateral sidewall 26 of the nose 16 or in either of the sidewalls 36 or 38 of the tip without departing from the subject invention.
  • the keeper means 44 includes a washer 46 having an inside surface 47 defining a bore 48 with a radial annular groove 50 defined in the washer and opening into the bore.
  • the washer 46 is preferably made of metallic material or any other suitable material.
  • the washer 46 further has a flat inner side surface 52 adjacent the end wall 29 of the counterbore 28 and a frusto-conical outer side surface 54 adjacent the sidewall 36 of the tip 14. It should be recognized that a similar outer frusto-conical surface could be on the opposite side of the washer 46 without departing from the essence of the subject invention.
  • the groove 50 of the washer 46 has a pair of generally parallel sidewalls 56 and 58 and a bottom surface 60 spaced from the bore 48 defining a predetermined depth A for the groove.
  • the groove 21 in the pin 17 has a pair of generally parallel sidewalls 62 and 64 and a bottom surface 66 spaced from the outer peripheral surface 20 of the pin 17 defining a predetermined depth B for the groove.
  • the keeper means 44 also includes a metallic split resilient retaining ring 68.
  • the retaining ring 68 has a cross-section that is generally rectangular with a pair of generally parallel sidewalls 70 and 72 defining a predetermined width C and a pair of generally parallel inner and outer surfaces 74 and 76 defining a predetermined radial thickness D.
  • the ring 68 is slidably captured in the groove 50 of the washer 46.
  • the ring 68 may be composed of a conventional spring steel or like material which exhibits the desired resiliency, hardness and spring back capabilities required for pin retention purposes.
  • the pin 17 in the assembled position is slidably disposed within the bore 22 of the nose 16, the bore 48 of the washer 46 and extends substantially through the holes 39 and 40 of the sidewalls 36 and 38 of the tip 14.
  • the ring 68 is disposed in locking engagement with the groove 21 of the pin 17 and the groove 50 in the washer 46.
  • the depth A of groove 50 in the washer 46 has depth A is equal to or greater than the predetermined radial thickness D of the ring 68.
  • the predetermined depth B of the groove 21 in the pin 17 is generally equal to one-half of the predetermined radial thickness D of the ring 68.
  • FIG. 5 an alternate embodiment of the present invention is illustrated and includes a split resilient retaining ring 78 having a cross-section that is generally circular with a predetermined radial thickness E.
  • the ring 78 is slidably captured in the groove 50 of the washer 46.
  • a bottom surface 80 of the groove 50, spaced from the bore 48, has a profile generally corresponding to the ciruclar cross-section of the ring 78 and defines a depth F for the groove.
  • the groove 21 in the pin 17 has a root profile 82 generally corresponding to the circular cross-section of the ring 78 and defines a predetermined depth G for the groove.
  • the ring 78 is disposed in locking engagement with the groove 21 of the pin 17 and the groove 50 in the washer 46.
  • bottom surface 80 of groove 50 and the profile 82 of groove 21 in pin 17 need not correspond exactly to the circular cross-section of the ring 78 and may in fact be like that shown in Fig. 4.
  • the depth F of groove 50 in the washer 46 is equal to or greater than the predetermined radial thickness E of ring 78 and the predetermined depth G of the groove 21 in the pin 17 is generally equal to one-half of the predetermined radial thickness E of the ring 78.
  • Fig. 6 another alternate embodiment of the present invention is illustrated.
  • the groove 21 in the pin 17 has a depth H preferably equal to or greater than the predetermined radial thickness D of the ring 68.
  • the ring 68 is slidably captured in the groove 21 of the pin 17.
  • the radial annular groove 50 in washer 46 preferably has a depth J generally equal to one-half of the radial thickness D of the ring 68.
  • a pair of beveled surfaces 84 and 86 are provided at the intersection of the bore 48 and the side surfaces 52 and 54 of the washer 46.
  • the beveled surfaces 84 and 86 are dimensioned to provide a camming function to compress ring 68 into groove 21 during assembly.
  • split resilient ring 78 having a cross-section that is generally circular could be slidably captured in the groove 21.
  • the earthworking device 10 of the present invention is particularly adaptable for positive retention of earthworking tips or teeth detachably mounted on support adapters and may be equally useful for the retention of tips used on trenchers or on the cutting edge of a loader bucket. Because the tips and the pins are subjected to extreme bending, twisting and vibration it is extremely difficult to providing positive pin retention while still allowing periodic replacement.
  • the keeper means 44 is initially placed in recess 28 and the tip 14 is telescopically mounted on the nose 16 of the adapter 12. This captures keeper means 44 between the end wall 29 of the recess 28 and the sidewall 36 of the tip 24.
  • the flat inner surface 52 of the washer 46 is positioned adjacent the end wall 29 of the recess with conical outer side surface 54 adjacent the sidewall 36 of the tip.
  • Pin 17 is then driven manually, by a sledge hammer or the like, through the aligned holes 39 and 40 in the tip 14, the bore 22 in the nose 16 of adapter 12 and the bore 48 in the washer 46 of the keeper means 44.
  • the ring 68 has a cross-section that is generally rectangular with generally paralled sidewalls 70 and 72 that engage the generally parallel sidewalls 56 and 58 of the groove 50 in the washer 46 and the generally parallel sidewalls 62 and 64 of the groove 21 in the pin 17.
  • approximately one-half of the predetermined thickness D of the ring 68 is located in the groove 21 of the pin 17 and approximately one-half is located in the groove 50 of the washer 56. It is recognized that the groove 21 in the pin 17 need only have a depth B sufficient to prevent camming of the ring 68 out of the groove 21.
  • any axial force on the end of the pin 17, during operation of the earthworking device 10, trying to dislodge the pin 17 from the bore 48 of the captured washer 46 is resisted by the ring 68 overlapping the grooves 21 and 50 with the maximum section thickness C of the ring 68 being in shear.
  • a force In order to disassembly the pin 17 from the bore 22 of the nose 16 for periodic replacement of the tip 14, a force must be applied on the end of the pin by a sledge hammer or the like sufficient to physically shear the ring 68 at the interface of the grooves 21 and 50 or alternately to cause fracture of the washer 46. It is recognized that the amount of force to shear the ring 46 or the fracture of the washer 46 can be changed or controlled by changing either the cross-section of the ring or washer that is in shear, the type of material and/or the heat treatment of the elements. In one working example, the force necessary to cause the retaining ring 68 to shear is in the range of 143 - 257 kN (32,200 - 57,700 lbs.). This being based on having a section thickness C in shear of approximately 3.0 mm (.118 inches).
  • Fig. 5 discloses a split resilient retaining ring 78 having a generally circular cross-section with approximately one-half of the predetermined radial thickness E of the ring located in the groove 50 of he washer 46 and approximately one-half located in the groove 21 of the pin 17 to prevent camming of the ring 78 out of the grooves 21 and 50.
  • any axial force on the end of the pin 17 trying to dislodge the pin from the bore 48 of washer 46 is resisted by the ring 78 overlapping the grooves 21 and 50 places the maximum radial section thickness E of the ring in shear.
  • the ring 68 is slidably captured in the groove 21 of the pin 17.
  • the depth H of the groove 21 is equal to or greater than the predetermined radial thickness D of the ring 68 and the depth J of the groove 50 in the washer 46 is equal to one-half the radial thickness D of the ring 68.
  • approximately one-half of the predetermined thickness D of the ring is located in the groove 21 of the pin 17 and approximately one-half is located in the groove 50 of the washer 46.
  • the groove 50 in the washer 46 need only have a depth H sufficient to prevent camming of the ring 68 out of the groove 50.
  • the split resilient ring 68 is compressed into groove 21 until the groove 50 in the washer 46 radially aligns with the groove 21. At this point, the retaining ring 68 "springs back" engaging the groove 50 of the washer 46.
  • the pin 17 is driven through bore 48, one of the beveled surfaces 84 or 86 provides a camming function to compress the ring 68 into the groove 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Catching Or Destruction (AREA)

Abstract

Dispositif de retenue d'une clavette comportant un ensemble de pièces pour maintenir sur leur fixation les pointes à travailler la terre. Il est extrêmement important, du point de vue opérationnel comme du point de vue économique, de bien maintenir sur leur fixation les pointes à travailler la terre au moyen de leurs clavettes de retenue pendant toute la durée du travail. En effet, quand ces pointes sont perdues, il faut les remplacer ou les réparer, ce qui non seulement fait perdre du temps mais se répercute sur la production. S'il faut, certes, bien maintenir ces pointes en place, celles-ci doivent cependant pouvoir être rapidement enlevées en vue de leur remplacement. Les pièces de retenue (44) de la clavette (17) viennent s'insérer dans un évidement (28) situé entre un bec (16) de la pièce de fixation (12) et une paroi latérale (36) de la pointe (14) et comportent une rondelle (46) glissée sur la clavette (17) et une bague de retenue élastique (68, 78), d'une épaisseur radiale prédéterminée, s'engageant dans une rainure (21) disposée sur la clavette (17) ainsi que dans une rainure de la rondelle (46) pour provoquer un verrouillage. L'une des rainures (21, 50) de la clavette (17) et de la rondelle ont une profondeur égale ou supérieure à l'épaisseur radiale prédéterminée de la bague de retenue (68, 78) et l'autre rainure (21, 50) a une profondeur suffisante pour empêcher que la bague (68, 78) fasse saillie hors de la rainure (21, 50) et que la largeur de la section transversale de la bague (68, 78), exposée au cisaillement, soit maximale. Pour enlever la clavette (18), on doit cisailler la bague (68, 78) on casser la rondelle (46).
PCT/US1987/003157 1987-01-20 1987-11-30 Ensemble de pieces de retenue efficace sur clavette de pointe a travailler la terre WO1988005483A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63502360A JP2614910B2 (ja) 1987-01-20 1987-11-30 土工装置並びに土工装置の保持ピン及び保持手段

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US451587A 1987-01-20 1987-01-20
US451687A 1987-01-20 1987-01-20
US004,516 1987-01-20
US004,515 1987-01-20

Publications (1)

Publication Number Publication Date
WO1988005483A1 true WO1988005483A1 (fr) 1988-07-28

Family

ID=26673108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/003157 WO1988005483A1 (fr) 1987-01-20 1987-11-30 Ensemble de pieces de retenue efficace sur clavette de pointe a travailler la terre

Country Status (7)

Country Link
EP (1) EP0343191B1 (fr)
JP (1) JP2614910B2 (fr)
AU (1) AU605268B2 (fr)
CA (1) CA1283939C (fr)
DE (1) DE3786929T2 (fr)
ES (1) ES2006269A6 (fr)
WO (1) WO1988005483A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8943717B2 (en) 2011-10-08 2015-02-03 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
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU694806B2 (en) * 1993-12-23 1998-07-30 Australian Soil Care Systems Pty. Ltd. Overload protection mechanism
JP4771623B2 (ja) * 2001-07-17 2011-09-14 株式会社小松製作所 掘削用バケットのツース固定構造
ITTO20130740A1 (it) * 2013-09-12 2015-03-13 Rialca Due Di Chiolerio Paolo Giova Nni Dispositivo per il fissaggio di utensili a macchine operatrici mediante perni

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856359A (en) * 1971-09-20 1974-12-24 Cincinnati Mine Machinery Co Anti-coring device for use with bit mounting means on mining, earth working and digging machines
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
GB1518824A (en) * 1974-08-05 1978-07-26 Caterpillar Tractor Co Spring lock retaining means for earthworking tips
FR2390618A1 (fr) * 1977-05-12 1978-12-08 Lamouric Pol Dispositif pour le maintien a rotation d'un outil dans un porte-outil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3856359A (en) * 1971-09-20 1974-12-24 Cincinnati Mine Machinery Co Anti-coring device for use with bit mounting means on mining, earth working and digging machines
GB1518824A (en) * 1974-08-05 1978-07-26 Caterpillar Tractor Co Spring lock retaining means for earthworking tips
US4096653A (en) * 1974-10-31 1978-06-27 Caterpillar Tractor Co. Cartridge retaining means for earthworking tips
FR2390618A1 (fr) * 1977-05-12 1978-12-08 Lamouric Pol Dispositif pour le maintien a rotation d'un outil dans un porte-outil

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9428886B2 (en) 2011-10-07 2016-08-30 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
US9528248B2 (en) 2011-10-08 2016-12-27 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9624651B2 (en) 2011-10-08 2017-04-18 Caterpillar Inc. Implement tooth assembly with tip and adapter
US10041230B2 (en) 2011-10-08 2018-08-07 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
US9546471B2 (en) 2011-10-10 2017-01-17 Caterpillar Inc. Implement tooth assembly with tip and adapter
US10060100B2 (en) 2011-10-10 2018-08-28 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine

Also Published As

Publication number Publication date
DE3786929T2 (de) 1994-03-10
DE3786929D1 (de) 1993-09-09
CA1283939C (fr) 1991-05-07
JPH02502033A (ja) 1990-07-05
AU605268B2 (en) 1991-01-10
JP2614910B2 (ja) 1997-05-28
ES2006269A6 (es) 1989-04-16
AU1396488A (en) 1988-08-10
EP0343191A1 (fr) 1989-11-29
EP0343191B1 (fr) 1993-08-04

Similar Documents

Publication Publication Date Title
US5009017A (en) Retaining pin having a positive keeper means
US4823486A (en) Positive keeper means for pins of earthworking tips
US5233770A (en) Locking pin apparatus
USH2020H1 (en) Tip and adapter for an earthworking bucket
US5617655A (en) Securement pin for earth excavation teeth
CN108699818B (zh) 用于土方作业设备的磨损组件
AU752996B2 (en) Ground engaging tools for earthworking implements and retainer therefor
US4848013A (en) Two pin fastening assembly with interconnecting and retaining means
US5435084A (en) Apparatus and method for attaching a digging tooth tip
AU2008207392B2 (en) Excavating tooth point/adapter assembly with rotatably lockable connector structure
US4043060A (en) Combination strengthened loader bucket and replaceable cutting edge
US5956874A (en) Tooth assembly and lock system
US6085448A (en) Mechanical retention system for ground engaging tools
US5491915A (en) Locking pin apparatus
CN201003182Y (zh) 地面嵌入工具保持装置
EP3805470B1 (fr) Système de retenue d'un élément d'usure sur un godet
US5417518A (en) Tooth mounting adaptor for excavation bucket
AU2009210367A1 (en) Attachment System
WO1988005483A1 (fr) Ensemble de pieces de retenue efficace sur clavette de pointe a travailler la terre
US20210010247A1 (en) Shroud retention system for a work tool
US20050011089A1 (en) Excavation tooth installation assembly and method
US20040111927A1 (en) Tip and adapter assembly
AU7224000A (en) Retention crank assembly
AU677667B2 (en) Locking pin apparatus
AU639806B2 (en) Improved pin

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): DE FR GB SE

WWE Wipo information: entry into national phase

Ref document number: 1988902349

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1988902349

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1988902349

Country of ref document: EP