WO2007067901A2 - Shear resistant rivet and saw chain - Google Patents
Shear resistant rivet and saw chain Download PDFInfo
- Publication number
- WO2007067901A2 WO2007067901A2 PCT/US2006/061634 US2006061634W WO2007067901A2 WO 2007067901 A2 WO2007067901 A2 WO 2007067901A2 US 2006061634 W US2006061634 W US 2006061634W WO 2007067901 A2 WO2007067901 A2 WO 2007067901A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rivet
- hardness
- hrc
- hub
- shoulder
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 48
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000009987 spinning Methods 0.000 description 8
- 238000010008 shearing Methods 0.000 description 4
- 241001124569 Lycaenidae Species 0.000 description 2
- 206010042674 Swelling Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/06—Solid rivets made in one piece
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/909—Cutter assemblage or cutter element therefor [e.g., chain saw chain]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9319—Toothed blade or tooth therefor
Definitions
- Embodiments of the invention relate generally to the field of saw chain rivets, and more particularly to rivets having shear resistant regions to reduce rivet shear when large forces are encountered, while maintaining other regions optimized for rivet head formation.
- a common mode of failure for saw chains used on mechanical harvesters is rivet shear.
- the reason for such increased rivet shear is that tree harvester saw chain has been simply a larger version of saw chain suited for conventional chain saws. Tree harvesters, however, apply a significantly greater force in the saw chain, which in turn can cause a saw chain to bind in the bar groove, not release when engaging an uncuttable object, and the like. Since conventional chain saw chain is not suited to withstand such forces, the tree harvester saw chains are prone to breaking, and in particular to shearing at the shoulder of the rivets coupling the chain components together.
- chain shot is dangerous to persons, and equipment, nearby. Steps to reduce risk to operators and equipment include, chain catchers, chain shot guards, and replacing the standard 13-mm cab glass with 19-mm or thicker laminated polycarbonate windows. Other steps to mitigate risk include inspecting chains for damage before use. However, it is believed that many chains fail the instant they are damaged.
- Saw chains for concrete cutters may also tend to break through the rivets and rivet holes as the chain material contacting the bar is worn away.
- To provide longer life to the chain more material can be added between the bar contact area and rivet hole by reducing the rivet hole diameter in the cutters and tie straps. This added material can increase the strength and life of the cutters or tie straps but decreases the shearing strength of the rivets because the rivet diameter is reduced. Striking a balance between rivet diameter and material thickness in the other chain components may be difficult.
- FIG. 1 illustrates a side view portion of a saw chain in accordance with an embodiment of the present invention
- FIGS. 2a and 2b illustrate cross-sectional views of a saw chain, taken along the line 2-2, in FIG. 1 in accordance with an embodiment of the present invention
- FIG. 3 illustrates a rivet generally cut in half for illustration, in accordance with an embodiment of the present invention
- FIG. 4 illustrates a rivet generally cut in half for illustration, in accordance with an embodiment of the present invention
- FIG. 5 illustrates a detail view of a portion of FIG. 2b in accordance with an embodiment of the present invention
- FIG. 6a is a flow diagram illustrating a method in accordance with various embodiments of the invention, and FIGS. 6b and 6c are side views of rivets illustrating regions wherein described operations of the method illustrated in FIG. 6a may be conducted;
- FIG. 7a is a flow diagram illustrating a method in accordance with various embodiments of the invention, and FIGS. 7b and 7c are side views of rivets illustrating regions wherein described operations of the method illustrated in FIG. 7a may be conducted;
- FIG. 8a is a flow diagram illustrating a method in accordance with various embodiments of the invention, and FIG. 8b is a side view of a rivet illustrating regions wherein described operations of the method illustrated in FIG. 8a may be conducted;
- FIG. 9a is a flow diagram illustrating a method in accordance with various embodiments of the invention, and FIG. 9b is a side view of a rivet illustrating regions wherein described operations of the method illustrated in FIG. 9a may be conducted;
- FIG. 10a is a flow diagram illustrating a method in accordance with various embodiments of the invention
- FIG. 10b is a side view of a rivet illustrating regions wherein described operations of the method illustrated in FIG. 10a may be conducted;
- FIG. 11a is a flow diagram illustrating a method in accordance with various embodiments of the invention
- FIG. 11b is a side view of a rivet illustrating regions wherein described operations of the method illustrated in FIG. 11a may be conducted;
- FIG. 12a is a flow diagram illustrating a method in accordance with various embodiments of the invention
- FIG. 12b is a side view of a rivet illustrating regions wherein described operations of the method illustrated in FIG. 12a may be conducted.
- A/B means "A or B.”
- a and/or B means "(A), (B), or (A and B).
- the phrase “at least one of A, B and C” means "(A), (B), (C) 1 (A and B), (A and C), (B and C) or (A, B and C).
- the phrase “(A) B” means "(B) or (A B)"; that is, A is optional.
- Coupled may mean that two or more elements are in direct physical or electrical contact. However, “coupled” may also mean that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other
- Embodiments of the present invention may include a rivet adapted to couple tie strap pairs or a cutter and tie strap with a drive link that may include one or more regions of relatively high shear resistance.
- one or more regions in and around the shoulder area may be hardened to a higher hardness than the end portions of the rivet hub, which generally need to be ductile enough to be deformed into a rivet head.
- Various embodiments may further include increasing the hardness of a portion of the surface of the flange to hardness greater than that of the shoulder in order to provide a more wear resistant surface.
- various embodiments may include hub ends being sufficiently hard, to aid in deforming the deformable regions.
- a number of hardness scales are known. Here, the so-called “C-scale" of the Rockwell hardness scale (HRC) will be used when referring to hardness levels, when describing embodiments of the invention.
- Embodiments according to the invention provide a rivet having shear resistant properties that may provide a saw chain, such as a harvester chain with increased strength to withstand significant forces that may be exerted on it while in use. Greater flexibility in saw chain design may be possible due to stronger and more reliable rivets provided by various embodiments according to the invention.
- Various embodiments may allow for increased material thickness in, for example, the rivet areas of chain components by allowing for a reduced rivet diameter. Such increased material thickness may maximize overall strength and life of, for example, a concrete cutting saw chain, or other saw chain adapted for use with mechanical or human controlled cutting devices.
- FIG. 1 is a side view of a portion of a chain illustrating how rivets 12 may be used to join components of a chain, such as a saw chain 10.
- FIGS. 2a and 2b are cross-sectional views taken at the line 2-2 in FIG. 1.
- FIG. 2a illustrates components joined together prior to forming a rivet head
- FIG. 2b illustrates a rivet head 14 having been formed by, for example, deforming the rivet 12 in order to fasten the components together.
- the components may include a drive link 16, one or more tie straps 18, and a cutter link 20.
- the drive link 16 may exert a force on the rivet 12 in one direction while the tie straps 18 may exert a force on the rivet in another direction imparting shear stress on the rivet 12.
- FIG. 3 is a perspective view of the rivet 12 shown generally cut in half, illustrating one embodiment according to the invention.
- the rivet 12 may include a flange 22 and two hubs 24 configured to extend from sides 26 of the flange 22. Shoulders 28 may be defined by a junction between the flange 22 and the hubs 24.
- a shear resistant region 30 may be configured in and around the shoulders 28 that may be optimized to resist shear forces that may be encountered by the saw chain 10 during a cutting operation. The rivet 12 may therefore enable the saw chain 10 to withstand greater stress and be less likely to break.
- the shear resistant region 30 may be, for example, heat-treated to a greater hardness than the hubs 24 in order to better withstand shear stress.
- the region on the rivet 12 with a hardness optimized for resistance to shearing may be located within the flange 22 and may extend across the shoulders 28 and into the hubs 24 where shear stress may be present from tension in the chain and/or impact to the cutters.
- the region optimized for resistance to shearing may be limited in extension into the hub 24 so that it may not inhibit the proper forming of a rivet head 14.
- the hubs 24 may have strength and properties optimized for rivet formation as illustrated by deformable region 32.
- Deformable region 32 may be sufficiently deformable to form a rivet head 14 as illustrated in FIG. 2b, and may be sufficiently soft to avoid placing demands on rivet forming tools and/or equipment outside a predetermined range, and/or to prolong the life of the rivet forming tools and equipment.
- FIG. 4 is a perspective view of the rivet 12 shown generally cut in half, illustrating one embodiment according to the invention.
- the rivet 12 may include: a first region or shear resistant region 30 configured to withstand shear stress; a second region 32 may be optimized for rivet formation and configured to deform during, for example, a rivet forming operation; a third region 34, on a circumferential surface of the flange 22 may be configured to resist wear, which may be accomplished, for example, by providing a hardness optimized to resist sliding wear; and a fourth region 36, on the ends of the hubs, may be configured to assist in the rivet forming operation.
- the fourth region 36 may be slightly harder than the second region 32 such that it may still deform during the formation process, but be more resistive to fracture or further deformation during operation. Rivet heads 14 such as those illustrated in FIG. 2b may be formed, for example, by a spinning operation, wherein the fourth region 36 is
- FIG. 5 is a partial magnified view of portions of FIG. 2b illustrating a junction 35 defined between the deformed rivet 12 and the tie straps 18.
- the second, or deformable, region 32 is sufficiently deformable so that the junction 35 defines a contact ⁇ e.g. minimize as much as possible any gaps) between the tie strap 18 and the rivet 12.
- the rivet 12 may be held fixed relative the tie straps 18 due to the sufficient deformation of the deformable region 32.
- each of the aforementioned regions 30, 32, 34, and 36 may have characteristics that are different from one another.
- One embodiment, according to the invention may provide a rivet 12 having a first or shear resistant region 30 hardened to a shear resistant hardness which may have a value approximately between HRC 38 and HRC 58.
- the shear resistant region 30 may be hardened to within a range approximately between HRC 48 and HRC 55.
- a second or deformable region 32 may have a deformable hardness that has a value approximately between HRC 25 and HRC 35.
- a third or wear resistant region 34 may be hardened to a wear resistant hardness that has a value substantially equal to or greater than HRC 58. And in another embodiment, one embodiment may provide a fourth region 36 hardened to a value approximately between HRC 30 and HRC 35.
- a rivet may have one hub joined to a flange at a shoulder.
- the shoulder region may have properties optimized to resist shear stresses.
- the depth of penetration of the hardness level of the shoulder/shear resistant region may vary depending on the nature and magnitude of the potential encountered forces.
- the depth of the hardness of the wear resistant surface may also vary depending on such factors.
- the rivet may have one or more additional regions having a different hardness, similar to the regions described above.
- FIG. 6a is a flow diagram illustrating a method in accordance with various embodiments of the invention and FIGS. 6b and 6c are side views of rivets 100 illustrating regions of each rivet 100 wherein described operations of the method illustrated in FIG. 6a may be conducted. Dotted line ellipses may illustrate a correspondence between the operations and regions of the rivet 100.
- the method may include: Heat-treating an entire rivet 100 to a first hardness, for example, a deformable hardness, 102.
- the deformable hardness may be, for example, a value roughly between HRC 25 and HRC 35; and
- the shear resistant hardness may be, for example, a value roughly between HRC 38 and HRC 58. In one embodiment, the shear resistant hardness may be a range approximately between HRC 48 and HRC 55. Selective heat-treating may be performed, for example, by induction heat treatment, or other hardness increasing method.
- the treated region 112 may be allowed to extend partially from a flange circumference 114 toward a center 116 of the rivet 100 as illustrated in FIG. 6b. In one embodiment, the treated region 112' may be allowed to extend across the rivet, as illustrated in FIG. 6c.
- FIG. 7a is a flow diagram illustrating a method in accordance with various embodiments of the invention and FIGS. 7b and 7c are side views of rivets 100 illustrating regions of the rivet 100 wherein described operations of the method illustrated in FIG. 6a may be conducted in the various embodiments.
- the method may include operations similar to the embodiment shown in FIG. 6a.
- the rivet 100 may be selectively treated to a shear resistant hardness by applying localized heat on the shoulder regions 104, as illustrated by operation 208.
- the treated region 212 may be allowed to extend partially from a flange circumference 114 toward a center 116 of the rivet 100 as illustrated in FIG. 7b.
- the treated region 212' may be allowed to extend across the rivet, as illustrated in FIG. 7c.
- FIGS. 8a and 8b illustrate another embodiment according to the invention wherein a further treatment operation 310 may be performed on the flange circumference 114, in addition to the operations performed in the embodiments illustrated in FIGS. 6a.
- the flange circumference 114 may be selectively treated to a wear resistant hardness, 118.
- the wear resistant hardness may be, for example, a value substantially equal to or greater than HRC 58.
- the further treatment operation 310 could be performed in addition to those performed in the embodiments illustrated in 7a
- FIGS. 9a and 9b illustrate another embodiment according to the invention wherein a further treatment operation 320 may be performed on ends 120 of the hubs 122, in addition to one or more of the operations performed in the embodiments illustrated in FIGS.
- the ends 120 may be treated to a rivet formation assistance hardness such that a compression, crushing, spinning, or other rivet head forming operation may be more effectively performed on the ends 120 to deform the hubs 122.
- the further treatment operation 320 could be performed in addition to those performed in the embodiments illustrated in 7a.
- FIG. 10a is a flow diagram illustrating a method in accordance with an embodiment of the invention
- FIG. 10b is a side view of a rivet 100
- the method may include:
- a first hardness for example, a shear resistant hardness, 402.
- the shear resistant hardness may be, for example, a value roughly between HRC 38 and HRC 58. In one embodiment, the shear resistant hardness may be between HRC 48 and HRC 55; and
- the deformable hardness may be a value roughly between HRC 25 and HRC
- a further operation the same or similar to that illustrated in FIG. 8a may be performed wherein the flange circumference 114 is selectively heat-treated to a wear resistant hardness, 310.
- the wear resistant hardness may be, for example, a value substantially equal to or greater than HRC 58.
- a further operation the same or similar to that illustrated in FIG. 9a may be performed wherein the ends 120 of hubs 122 may be further hardened above the hardness of the hubs 122 to facilitate reliable head formation.
- FIG. 11a is a flow diagram illustrating a method in accordance with various embodiments of the invention
- FIG. 11b is a side view of a rivet 100 illustrating regions of the rivet 100 wherein described operations of the method illustrated in FIG. 11a may be conducted.
- the method may include:
- the wear resistant hardness may be, for example, a value substantially equal to or greater than HRC 58;
- the shear resistant hardness may be, for example, a value roughly between HRC 38 and HRC 58. In one embodiment, the shear resistant hardness may be between HRC 48 and HRC 55; and
- the deformable hardness may be a value roughly between HRC 25 and HRC 35.
- a further operation the same or similar to that illustrated in FIG. 9a may be performed wherein the hub ends are treated to a rivet head forming hardness.
- FIG. 12a is a flow diagram illustrating a method in accordance with an embodiment of the invention
- FIG. 12b is a side view of a rivet 100 illustrating regions of the rivet 100 wherein described operations of the method illustrated in FIG. 12a may be conducted.
- the method may include:
- Heat-treating an entire rivet 100 for wear resistance, 602. For example a hardness value substantially equal to or greater than HRC 58;
- the method may be appropriate when using a material which is not too brittle at elevated hardness levels.
- the shoulder portion 28 (see e.g. FIG. 3) may be hardened to accommodate sheer forces.
- the hubs 24 may be hardened to a lesser hardness as desirable to allow for rivet head formation following
- FIGs. 2a and 2b which illustrate before and after formation of the rivet heads 14.
- junction 35 is beveled as compared to the straight section 37.
- This junction also referred to as a counter sink 35
- FIG. 1 An example of an assembled saw chain is illustrated in FIG. 1.
- the chain example may be a sequence of alternating side link pairs (e.g. one pair comprising a cutting link 20 and side link 18, and a second pair comprising a pair of side links 18), and may be used in wood cutting, aggregate cutting or other cutting environments.
- the side link pairs are pivotally coupled at each end to center and/or drive links.
- the assembly process is typically automated and in general non headed rivets 12 are inserted into the rivet receiving holes of center links 16, and side links 18 and 20 are assembled onto the hubs 24 of the rivets.
- the loosely assembled saw chain is directed into a rivet spinning machine where the protruded hub portions 24 at each side of the chain are spin-crushed against the side links to form the rivet heads 14, an example of which is illustrated in FIG 2b.
- a goal of the spinning (crushing) operation is to obtain a uniform fit of the rivet hub to the side links, as illustrated in FIG. 5.
- the fit is largely a function of the hardness characteristics of the hub and the crushing/spinning operation of the rivet spinning machine. These characteristics are not
- the desired result from the interference fit includes a uniform distribution of gripping forces to maximize the strength of the lock between the parts without causing a concentrated area of excessively high stress.
- this may be achieved by selectively changing the hardness at specific locations along the length of the rivet hub.
- the rivet hub locations that cause an excessive interference can be selectively hardened to a higher hardness to hinder the rivet expansion at those locations.
- an area of insufficient interference fit can be corrected by selectively hardening to a higher hardness the area that expands first, thus altering the strain of the two areas to force more interference fit where needed.
- the very outer ends of the hub may be heat treated to a lower hardness than the middle portion of the hub, which may be of a lower hardness than the shoulder portion of the hub. While discussed earlier with respect to certain embodiments, FIG. 4 may be also be used to illustrate such a selective hardness profile.
- the end portion (identified as 36) may be of the lowest hardness.
- the middle portion (identified as 32) may be of a middle hardness.
- the inner portion or shoulder (identified as 30) could be of a higher hardness.
- the hardness can be changed as desired to accommodate stresses, wear and/or further processing.
- an area with an insufficient interference fit can be corrected by selectively hardening to a lower hardness the area where the interference fit is insufficient.
- the rivet hub area with a lower hardness may thus expand sooner in the joining process then previously.
- the area that is selectively hardened to a higher or lower hardness may be done to the entire cross section of the rivet hub, whereas in other embodiments, the selective hardening may be done to only a portion of the cross section of the rivet hub.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20060846480 EP1957225B1 (en) | 2005-12-06 | 2006-12-05 | Saw chain with a shear resistant rivet |
CN2006800504717A CN101356035B (en) | 2005-12-06 | 2006-12-05 | Shear resistant rivet and saw chain |
CA 2632532 CA2632532C (en) | 2005-12-06 | 2006-12-05 | Shear resistant rivet and saw chain |
BRPI0619432-0A BRPI0619432A2 (en) | 2005-12-06 | 2006-12-05 | shear resistant rivet and saw chain |
AU2006321631A AU2006321631B2 (en) | 2005-12-06 | 2006-12-05 | Shear resistant rivet and saw chain |
NZ569625A NZ569625A (en) | 2005-12-06 | 2006-12-05 | Shear resistant rivet and saw chain with shoulder region that is softer than outer surface |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/295,827 US7563064B2 (en) | 2005-12-06 | 2005-12-06 | Shear resistant rivet and saw chain |
US11/295,827 | 2005-12-06 | ||
US11/566,644 | 2006-12-04 | ||
US11/566,644 US7891279B2 (en) | 2005-12-06 | 2006-12-04 | Shear resistant rivet and saw chain |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007067901A2 true WO2007067901A2 (en) | 2007-06-14 |
WO2007067901A3 WO2007067901A3 (en) | 2007-12-13 |
Family
ID=38123974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/061634 WO2007067901A2 (en) | 2005-12-06 | 2006-12-05 | Shear resistant rivet and saw chain |
Country Status (9)
Country | Link |
---|---|
US (1) | US7891279B2 (en) |
EP (1) | EP1957225B1 (en) |
CN (1) | CN102126049B (en) |
AU (1) | AU2006321631B2 (en) |
BR (1) | BRPI0619432A2 (en) |
CA (1) | CA2632532C (en) |
NZ (1) | NZ569625A (en) |
RU (1) | RU2429117C2 (en) |
WO (1) | WO2007067901A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2009118829A1 (en) * | 2008-03-25 | 2011-07-21 | 三菱電機株式会社 | Cryptographic operation apparatus, cryptographic operation program, and recording medium |
GB2526654A (en) * | 2014-03-25 | 2015-12-02 | Stihl Maschf Andreas | Chain for a work implement |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9757808B2 (en) * | 2013-03-14 | 2017-09-12 | Blount, Inc. | Formed wire tie strap with integrated rivet for a saw chain |
WO2017124039A1 (en) * | 2016-01-13 | 2017-07-20 | Blount, Inc. | Saw chain link with one or more oversized rivet holes |
US11247363B2 (en) * | 2018-01-23 | 2022-02-15 | Oregon Tool, Inc. | Saw chain presets |
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DE1625260A1 (en) | 1966-10-19 | 1970-07-16 | Auriol Eloi | Rivet or similar fastener and process for its manufacture |
US5153996A (en) | 1990-06-29 | 1992-10-13 | Blount, Inc. | Rivet connector for hedge cutting blade |
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US565049A (en) * | 1896-08-04 | Charles e | ||
US2393564A (en) * | 1944-04-08 | 1946-01-22 | Illinois Tool Works | Shearproof rivet |
US3209446A (en) * | 1960-05-02 | 1965-10-05 | Krueger Brewing Company G | Method of installing a pump lever in a pump body |
US3626531A (en) * | 1969-05-29 | 1971-12-14 | Standard Pressed Steel Co | Method for forming ultra high-strength buckable rivets |
US3848389A (en) * | 1969-12-29 | 1974-11-19 | Textron Inc | Bimetal rivets |
US3685391A (en) * | 1970-02-16 | 1972-08-22 | Textron Inc | Multimetal blind rivets and pulling stems |
US3762266A (en) * | 1970-11-09 | 1973-10-02 | Gould Inc | Bimetal fastener |
US3911783A (en) * | 1973-02-05 | 1975-10-14 | Townsend Company A Division Of | Rivet of titanium-columbium alloy and method of making the same |
US5076149A (en) * | 1990-12-07 | 1991-12-31 | Inertia Dynamics Corporation | Wrist pin, piston assembly and method for making same |
US5729882A (en) * | 1996-03-12 | 1998-03-24 | Sandvik Ab | Methods of assembling a chain and a rivet for use in such assembly |
CN2323187Y (en) * | 1997-05-21 | 1999-06-09 | 应耀明 | Simple rivet |
JPH1137118A (en) * | 1997-07-25 | 1999-02-09 | Pop Rivet Fastener Kk | Fixing implement |
DE19836247C2 (en) * | 1998-08-11 | 2000-08-31 | Daimler Chrysler Ag | Method of manufacturing a cam to be fitted on a hollow shaft to form a camshaft |
US6138658A (en) * | 1999-03-12 | 2000-10-31 | Blount, Inc. | Concrete cutting chain with sealed joints |
DE10134963C2 (en) * | 2001-07-23 | 2003-11-06 | Wilhelm F Holler | Rivet, in particular high-strength rivet, production of the rivet and a rivet connection using the rivet |
DE10315416A1 (en) * | 2002-06-27 | 2004-01-22 | Ina-Schaeffler Kg | Fixing the position of a bolt |
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2006
- 2006-12-04 US US11/566,644 patent/US7891279B2/en active Active
- 2006-12-05 WO PCT/US2006/061634 patent/WO2007067901A2/en active Application Filing
- 2006-12-05 RU RU2008127314A patent/RU2429117C2/en active
- 2006-12-05 EP EP20060846480 patent/EP1957225B1/en active Active
- 2006-12-05 AU AU2006321631A patent/AU2006321631B2/en active Active
- 2006-12-05 BR BRPI0619432-0A patent/BRPI0619432A2/en active IP Right Grant
- 2006-12-05 CN CN2011100020054A patent/CN102126049B/en active Active
- 2006-12-05 NZ NZ569625A patent/NZ569625A/en unknown
- 2006-12-05 CA CA 2632532 patent/CA2632532C/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1625260A1 (en) | 1966-10-19 | 1970-07-16 | Auriol Eloi | Rivet or similar fastener and process for its manufacture |
US5153996A (en) | 1990-06-29 | 1992-10-13 | Blount, Inc. | Rivet connector for hedge cutting blade |
Non-Patent Citations (1)
Title |
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See also references of EP1957225A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2009118829A1 (en) * | 2008-03-25 | 2011-07-21 | 三菱電機株式会社 | Cryptographic operation apparatus, cryptographic operation program, and recording medium |
GB2526654A (en) * | 2014-03-25 | 2015-12-02 | Stihl Maschf Andreas | Chain for a work implement |
US9573294B2 (en) | 2014-03-25 | 2017-02-21 | Andreas Stihl Ag & Co. Kg | Chain for a work implement, method for producing a stud for a chain and method for producing a driving member for a chain |
GB2526654B (en) * | 2014-03-25 | 2018-06-27 | Stihl Maschf Andreas | Chain for a work implement, method for producing a stud for a chain and method for producing a driving member for a chain |
Also Published As
Publication number | Publication date |
---|---|
EP1957225A2 (en) | 2008-08-20 |
NZ569625A (en) | 2010-07-30 |
CN102126049B (en) | 2013-05-08 |
CA2632532A1 (en) | 2007-06-14 |
CN102126049A (en) | 2011-07-20 |
EP1957225A4 (en) | 2011-03-23 |
RU2008127314A (en) | 2010-01-20 |
BRPI0619432A2 (en) | 2011-10-04 |
AU2006321631B2 (en) | 2011-12-08 |
CA2632532C (en) | 2014-01-28 |
US20070124946A1 (en) | 2007-06-07 |
EP1957225B1 (en) | 2013-11-13 |
AU2006321631A1 (en) | 2007-06-14 |
US7891279B2 (en) | 2011-02-22 |
RU2429117C2 (en) | 2011-09-20 |
WO2007067901A3 (en) | 2007-12-13 |
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