US3580027A - Gear rolling - Google Patents
Gear rolling Download PDFInfo
- Publication number
- US3580027A US3580027A US780390A US3580027DA US3580027A US 3580027 A US3580027 A US 3580027A US 780390 A US780390 A US 780390A US 3580027D A US3580027D A US 3580027DA US 3580027 A US3580027 A US 3580027A
- Authority
- US
- United States
- Prior art keywords
- die
- teeth
- tooth
- diameter
- blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49462—Gear making
- Y10T29/49467—Gear shaping
- Y10T29/49471—Roll forming
Definitions
- the methods of rolling gears which have produced this phenomenon include the rolling of gears between a pair of opposed gearlike dies in which the diesare relatively moved toward each other into the material of the circular blank. It also includes rolling operations in which the circular blank is acted on by opposed oppositely moving tools in the form of modified racks. It also includes operations in which two or more rolling dies are generally tapered either with their axes parallel or crossed, and in which the circular blank is advanced axially through the space between the rolling dies.
- each of the dies opposes the lateral thrust of the other so that it is unnecessary to provide extremely rigid support for the work blank as it is rotated during the tooth generating operation.
- the present invention maybe practiced with a single die providing the die and gear blank are adequately supported against lateral displacement.
- the axial movement of the blank is through the space between the dies, and more specifically, the feeding movement of the gear takes place with its axis occupying a plane parallel to the axes of both dies.
- the spaces between the teeth of the die or dies is given a configuration so that surfaces thereof prevent the formation of the rabbit ears and cause the metal displaced from the tooth spaces of the blank to produce a flow of metal toward the center of the teeth.
- this may of course be accomplished by providing dies which have teeth and tooth spaces appropriately tapered to accomplish the foregoing result.
- the shape of the tooth as it is being generated by a flow of metal displaced from the tooth spaces of the blank is not critical during intermediate stages, it is sufficient to provide root surfaces on the die sufficient to cause the metal displaced by the die teeth to flow laterally into the median portion of the teeth of the blank. Only in the portion of the die or dies which produce the final shape of the teeth is it critically important to have the.
- the foregoing results are accomplished in general by providing a die which at one end has a smooth circular cross section whose diameter is the generatingdiameter of the die or substantially equal thereto. From this circular end of the die teeth extend to the other side of the die which increase in height to give a generally conical outside diameter. Also, the spaces between the teeth increase generally uniformly in depth. At the ends of these teeth and tooth spaces where they run out into the cylindrical die form, the tooth and tooth spaces may be of equal circumferential extent. Moreover, measured along the same diameter throughout the length of the teeth from end to end, the teeth and tooth spaces may remain of equal circumferential extent. Alternatively, this condition need not prevail, so longas in any radial plane, the dies provide adequate space to receive the displaced metal from tooth spaces of the gear blank, and have surfaces which shape the flow of displaced metal to prevent formation of rabbit ears.
- FIG. 1 is av diagrammatic view showing the formation of rabbit ears in a rolled gear.
- FIG. 2 is a diagrammatic view illustrating the dies and their arrangement for the rolling of gears.
- FIG. 3 is a fragmentary sectional view on the line 3 3 of FIG. 2.
- FIG. 4 is a diagrammatic view illustrating a sequence of sectional views perpendicular to the axis of a die showing the shape of the teeth.
- FIG. 5 is a diagrammatic view illustrating initial, intermediate, and final tooth form of the blank.
- FIG. 6 is a fragmentary elevational view of the die.
- FIG. 7' is a fragmentary edge view ofthe die.
- FIG. 8 is a fragmentary sectional view on the line 8-8, FIG. 6.
- FIGS. 9 and 10 are fragmentary sectional views showing modifications of dies. v
- FIG. 1 there is shown an intermediate stage in the production of a gear by a rolling operation in which opposed rolls are fed radiallyinto a rotating blank.
- metal has been displaced from an initial outside .diameter indicated at 10 to form recesses 12 which are the beginnings of the tooth spaces between the teeth of the gear.
- the teeth during this stage of the process are indicated generally at 14, and teethin different stages of formation are specifically designated 14a, 14b, 14c and 14d.
- this metal will flow into the teeth and will be shaped by the coacting flanks of the teeth of the rolling die into the desired configuration such for example as an-involute form.
- the tendency of the metal displaced from the grooves or recesses 12 to follow the path of least resistance results in the formation of localized projections 16a which are referred to as rabbit ears.”
- the teeth grow in height as indicated at 14b, 14c and 14d.
- the rabbitears here designated 16b are substantially higher than as indicated at 16a and the tooth 14b is beginning to assume a required shape, as for example an involute shape.
- the tooth designed at 14c is the result of still further displacement of metal from the groove 12 into the tooth form and here it will be observed that the rabbit ears 166 are being forced toward each other and into contact.
- a gear blank 22 is provided which as illustrated is provided with a central hole 24 for the reception of a support arbor.
- a pair of dies 26, 28 are provided, the axis of which, as indicated at 30, are parallel and establish a plane containing these axes which also contains the axis of the blank 22 during the rolling operation.
- the exact tooth form of the dies 26, 28 will be described in some detail, but for the moment it will be observed that the teeth 32 of the dies, which for the time being may be considered as identical, are longitudinally tapered. Specifically, the teeth 32 have outwardly tapered crests 34 and inwardly tapered roots 36. This taper or inclination is of course with respect to the axis of the die.
- the shape of the spaces between the teeth 32 and particularly at and adjacent the roots thereof have a configuration so that any rabbit ears" tending to be formed by the entry of the crests of the teeth of the die into the blanks engages these surfaces and hence, the formation of the rabbit ears is prevented. Instead, the displaced material is caused to flow toward the centerline of the teeth.
- the portion of the dies 26, 28 at the left hand edge thereof, as seen in FIG. 2, is cylindrical and is adapted to engage or closely approach the smooth cylindrical outer surface of the blank 22.
- the dies 26 and 28 are rotated in the same direction through positive acting gearing which maintains the dies 26 and 28 in exactly properly timed relationship.
- This relationship is such that if the gear has an even number of teeth, centerlines of teeth on the dies 26 and 28 simultaneously pass through the plane containing the axes of the dies. if the blank contains an odd number of teeth, the centerline of a tooth on one of the dies 26 or 28 passes through the plane containing the axes of the dies while a plane bisecting the tooth space of the other die is passing through the same plane.
- a loading chute indicated diagrammatically at 40 is provided receiving anumber of blanks 22.
- the foremost blank is advanced from the chute by suitable means into a locator in alignment with a blank supporting arbor 42 having a reduced portion 44 adapted to fit snugly within the hole 24 in the blank and defining a shoulder 46 engageable with the end or side of the blank.
- Suitable power means are provided for advancing the arbor 42 axially through the space between the dies.
- the actual operation is carried out with the dies 26 and 28 rotated at substantial speeds, preferably the speed of rotation being such as to produce a surface speed approximately feet per minute.
- the arbor 42 is advanced at a rate which depends upon the material of the blanks, the diameter thereof, and other considerations. However, it has been found that satisfactory results have been obtained when the rate of advance is approximately 17 inches per minute.
- the teeth of the dies 26 and 28 may be modified to have the teeth of a final short section untapered to produce a finishing action on the teeth of the gear.
- the design of the roll dies and the initial diameter of the work blank are critical factors determining the success or failure of this operation.
- the blank is driven in rotation solely by its engagement with the rolling dies, it is essential to provide an initial diameter on the blank as determined by the circumferential pitch of the teeth of the dies measured at the minimum tooth crest diameter such that the initial impression made by a tooth of one die will be timed so as to register accurately with a tooth of the opposite die after the initial rotation of
- the rolling die is designed by first determining the required full tooth configuration of the gear, thereafter determining a blank diameter such that the cross-sectional area of the tooth spaces within the diameter shall be approximately equal to the cross-sectional area of the tooth form lying radially outwardly of the diameter.
- the next step is to design a roll with an appropriate number of teeth of proper configuration and with the tooth space configuration designed as to the root surfaces and flank surfaces adjacent the root so as to substantially completely prevent formation of rabbit ears and to cause material displaced by the teeth of the rolling dies to cause a flow of material toward the centerlines of the teeth, thus preventing formation of rabbit ears".
- the design of the die rolls is critical. If insufficient space is left for the controlled flow of material into the tooth formation of the gear by reason of insufficient tooth space formed in the die, excessive pressures result. On the other hand, if excess space, and particularly space adjacent the edges of the tooth spaces of the gear during the generating operation is present, then the rabbit ears form and having once formed cannot thereafter be eliminated.
- the exact shape of the tooth space between adjacent teeth of the die is not critical except at the ends of the teeth where the final formation of the teeth of the work gear occurs.
- the configuration of the root portions of the teeth of the die, in sections adjacent the entry end of the blank may include inclined portions engageable initially by material tending to flow into the formation of rabbit ears" and terminating in a channel formed by the intersection of these inclined surfaces or in a proper case, by a separate channel intermediate the inclined surfaces into which flow of displaced material occurs as it is displaced along the inclined surfaces toward the midplane of the gear teeth.
- FIGS. 57 there are shown detailed views illustrating the shape of the teeth of the gear rolling dies.
- the die proper is designated 60 and it is provided with a multiplicity of teeth 62 separated by tooth spaces 64.
- teeth 62 taper and more specifically, have a tapered crest 66 inclined outwardly from the smaller side of the die and thus giving the die an overall generally conical configuration.
- the taper imparted to the gear teeth both to the crests and roots thereof, as well as the chordal thickness of the teeth, is exaggerated for clarity.
- the bottom of the tooth spaces or roots 68 are inclined oppositely from the inclination of the crests 66 of the teeth. It will be observed that at the small end of the cutter the periphery is essentially an uninterrupted circle 70. This circle constitutes the rolling diameter of the die and hence, of the gear produced thereby. Thisdiameter on the gear will be adjacent but not'necessarily coincident with the pitch diameter of the finished gear.
- the taper of the teeth is preferably arranged so that any lead check measured along a side of a tooth and along a line parallel to the axis of the tooth or measured at constant radial distance from the axis of the die, will show the same lead at both sides of the teeth.
- the teeth for simplicity, are shown as spur teeth.
- helical teeth will conform to the same requirements and the lead or helix angle at opposite sides of the teeth, measured along lines equidistant from the axis will be the same on both sides of the teeth.
- the crests of the teeth are constituted by the areas 72.
- the sides or flanks of the teeth are constituted by the areas 74.
- the areas at the roots of the teeth are designated 76.
- the chordal thickness of the teeth measured on the rolling diameter 70 is uniform from end to end of the teeth and is equal to the uniform chordal spacing between adjacent tooth surfaces measured on this diameter.
- FIG. 4 there is diagrammatically shown in a single view the progression in the cross'sectional shape of the gear rolling die and particularly, the toothed portions thereof.
- the shape of a tooth and tooth space as viewed in a diametral plane adjacent the inlet side of the die, as for example at the plane designated A in FIG. 2, is illustrated in FIG. 4 where the tooth is designated 80a and the tooth space is designated 82a.
- the circular arc 84 represents the smooth continuous circular outside diameter of the dies at the inlet end where the teeth 80 terminate. It will be observed in FIG. 4 that the angular dimension of the tooth 80a is substantially equal to the angular extent of the recesses 820.
- the height of the tooth portion 800 is approximately equal to the depth of the tooth space 820. With this arrangement the material displaced by the tooth section 800 is adapted to be received in and substantially fill the tooth spaces 82a. Moreover, it will be observed that the root surfaces 86a of the tooth spaces 82a are in position to be engaged by rabbit ears" as they tend to be formed adjacent the sides of the tooth space produced by the tooth 80a. As illustrated in FIG.
- the root surfaces 86a and the adjacent side surfaces of the tooth space prevent formation of rabbit ears and guide the flow of displaced material toward the middle portion of the tooth space intercepted by the radial line 88a.
- a root surface such as illustrated at 89a which causes all of the metal displaced by the tooth to be guided toward the metal portion of the tooth space.
- the metal is not permitted to be displaced at the extreme side of a tooth space. Instead, all of the material is displaced centrally. The only requirement at this time is that the root surfaces between the teeth of the rolling die do not permit the growth of rabbit ears" and it is quite satisfactory to displace all of the metal toward the central portion of the gear teeth at this stage of formation.
- the height of the die teeth have increased, as indicated at b, and correspondingly the depth of the space between adjacent teeth has increased as indicated at 82b.
- the depth of the tooth space below the rolling diameter 84 and its configuration shall be such as to receive all of the metal displaced by the die tooth 80b.
- the root surface 82b shall be located in position to cause a flow of metal displaced by the tooth 80b toward the middle portion of the gear teeth.
- a further section through the die 26, as for example at C, indicates a tooth 800 whose crest is substantially higher than the crest of the same tooth at the section B.
- the depth of the tooth space has-increased so that the root surface 82c is as shown.
- the arrangement is such that the cross-sectional area of the .tooth space below the rolling diameter 84 shall be equal to the cross-sectional area of the tooth 80c above the rolling diameter within suitable limits. It will be observed that the tooth 80c has begun to assume recognizable involute form.
- the die tooth assumes the shape illustrated at 80d and the root surface is located at 820'. This represents substantially a tooth form conjugate to the desired tooth to be produced on the gear.
- FIG. 5 there is diagrammatically illustrated the generation or formation of teeth on a solid blank 90.
- the blank 90 is referred to as solid, this does not eliminate the possibility of a central hole such as the hole 24 illustrated in FIG. 2. It does require the formation of teeth in their complete form from material provided in a blank having initially a smooth cylindrical surface.
- the width of the die is designated by the arrow 92 and the solid blank 90 as it engages the left-hand end of the die has a smooth circular or cylindrical outside diameter 94.
- the work gear 90 as it progresses is moved in a direction parallel to its axis and the diagrammatic showing of FIG.
- the teeth When the gear emerges beyond the outlet end of the die or dies as illustrated at 90c, the teeth have been formed such that the circle 940 contains the crests of the teeth and the circle 96c contains or is tangent to the root surfaces thereof.
- the foregoing describes a rolling die which has been satisfactorily used in pairs to produce gears from solid material as described in the foregoing.
- the precise tooth form of the actual dies which have been tested in practice is not critical.
- the single essential requirement is that the teeth shall be tapered from end to end both to have an increasing tooth height as well as an increasing depth of space between the teeth, and further, that the configuration of the surfaces defining the space between the teeth of the die shall include surfaces in position to intercept the material of the blank which would otherwise be displaced locally into rabbit ears," and effective to cause this material to flow inwardly toward the center of the gear tooth as it is being formed by metal displaced from portions of the blank which are to become tooth spaces in the finished gear.
- the increase in crest height of the die teeth and the decrease in root diameter of the die teeth are substantially equal from end to end and are at a constant rate.
- the die 100 has teeth 102, the crests 104 of which are of curved configuration from the small end toward the large end of the teeth.
- the root diameter 106 is illustrated as of uniformly decreasing diameter.
- the embodiment of the invention illustrated in FIG. is generally similar.
- the die 110 has the teeth 112 the crests 114 of which increase at a diminishing rate from the small end toward the large end, thus producing the curved configuration illustrated in the FIG.
- the root diameter 116 of the teeth increases at a diminishing rate generally corresponding to the increase in rate of the crest diameter.
- the dies disclosed herein and the method of their use in rolling gears from cylindrical blanks represents a significant advantage over the dies and type of rolling in which opposed dies are moved radially into a blank having an initial outside diameter approximately equal to the pitch diameter, because in this case the blank diameter is initially contacted by the die roll or die teeth at approximately the pitch diameter thereof, and therefore the operating conditions for this method are virtually similar to those of present finish rolling of substantially fully cut teeth.
- starting diameter of rolls is the pitch diameter
- the circular pitch of the roll and gear are nearly identical.
- a gear rolling die in the form of a circular gear having a rolling diameter and having teeth which are tapered longitudinally to have crests of increasing height and tooth spaces of increasing depth, and in which the surfaces at the bottoms of the tooth spaces at and adjacent the roots of the die teeth are disposed to prevent formation of rabbit ears on a work gear blank as the die displaces metal therefrom by intercepting rabbit ears" as they tend to form directly adjacent the tooth spaces being formed in a work gear and guiding the flow of metal toward the middle portions of the gear teeth as they are formed.
- the die teeth being of increasing crest diameter and of diminishing root diameter from end to end, the cross-sectional area of the tooth portions within the rolling diameter in any radial plane being generally equal to the area of the tooth space portions outside such rolling diameter, and the surfaces of the roots and tooth flanks of the portions of the tooth spaces being shaped to guide metal displaced from a gear blank by penetration thereinto of teeth of the die toward the middle portion of the gear teeth.
- a die as defined in claim 2 the die teeth being of increasing crest diameter and of diminishing root diameter from end to end, the cross-sectional area of the tooth portions within the rolling diameter in any radial plane being generally equal to the area of the tooth space portions outside such rolling diameter, and the root surfaces of the tooth spaces of the die being of increasing depth from the flanks of the die teeth toward the middle portion thereof.
- a die as defined in claim 4 in which the rate of increase in crest diameter from one end to the other of the die teeth is substantially uniform.
- the method of forming gears which comprises rolling a gear blank in contact with a gearlike die, causing progressive penetration of the teeth of the die into the periphery of the blank to form tooth spaces in the blank and to displace material radially outwardly into teeth intermediate the tooth spaces, and confining and guiding the material of the blank as it is displaced radially outwardly to prevent local displacement of material directly adjacent the sides of the tooth spaces as they are formed.
- a die as defined in claim 1 in which in diametral planes adjacent the zone at which the die teeth merge into the rolling diameter, the bottom surfaces of the tooth spaces incline from approximately the rolling diameter toward the center of the tooth spaces and form a generally V-shaped surface effective to displace metal displaced by tooth portions of the die from the blank toward the central portions of the spaces between the die teeth.
- chordal width of the space between the die teeth as measured at the rolling diameter is substantially constant and substantially equal to the chordal thickness of die teeth as measured at the rolling diameter.
- a die as defined in claim 1 in which the width of the die teeth at the starting end thereof is substantially equal to the tooth spacing.
Abstract
Description
Claims (14)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78039068A | 1968-12-02 | 1968-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3580027A true US3580027A (en) | 1971-05-25 |
Family
ID=25119465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US780390A Expired - Lifetime US3580027A (en) | 1968-12-02 | 1968-12-02 | Gear rolling |
Country Status (3)
Country | Link |
---|---|
US (1) | US3580027A (en) |
DE (1) | DE1960284A1 (en) |
FR (1) | FR2024984A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2506702A1 (en) * | 1974-02-19 | 1975-08-21 | Ex Cell O Corp | TOOL FOR MANUFACTURING GEARS AND METHOD FOR MANUFACTURING THIS TOOL |
US7297166B2 (en) | 2003-06-25 | 2007-11-20 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
US7582092B2 (en) | 2003-06-25 | 2009-09-01 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
WO2010121590A3 (en) * | 2009-04-24 | 2010-12-23 | Neumayer Tekfor Holding Gmbh | Shaping method and correspondingly shaped component |
US8518050B2 (en) | 2007-10-31 | 2013-08-27 | DePuy Synthes Products, LLC | Modular taper assembly device |
US8998919B2 (en) | 2003-06-25 | 2015-04-07 | DePuy Synthes Products, LLC | Assembly tool for modular implants, kit and associated method |
US9095452B2 (en) | 2010-09-01 | 2015-08-04 | DePuy Synthes Products, Inc. | Disassembly tool |
US9101495B2 (en) | 2010-06-15 | 2015-08-11 | DePuy Synthes Products, Inc. | Spiral assembly tool |
US9504578B2 (en) | 2011-04-06 | 2016-11-29 | Depuy Synthes Products, Inc | Revision hip prosthesis having an implantable distal stem component |
US9717545B2 (en) | 2007-10-30 | 2017-08-01 | DePuy Synthes Products, Inc. | Taper disengagement tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59174240A (en) * | 1983-03-22 | 1984-10-02 | O S G Kk | Method and apparatus for roll forming |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT87888B (en) * | 1914-05-25 | 1922-04-10 | Le Forgeage Mecanique Sa | Device for forging circular workpieces. |
US1558086A (en) * | 1922-12-23 | 1925-10-20 | Charles O Gustavsen | Machine for rolling gears |
US1568648A (en) * | 1926-01-05 | of detroit | ||
US3352138A (en) * | 1965-10-23 | 1967-11-14 | Barber Colman Co | Tool for forming toothed parts |
-
1968
- 1968-12-02 US US780390A patent/US3580027A/en not_active Expired - Lifetime
-
1969
- 1969-11-18 FR FR6939699A patent/FR2024984A1/fr active Pending
- 1969-12-01 DE DE19691960284 patent/DE1960284A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1568648A (en) * | 1926-01-05 | of detroit | ||
AT87888B (en) * | 1914-05-25 | 1922-04-10 | Le Forgeage Mecanique Sa | Device for forging circular workpieces. |
US1558086A (en) * | 1922-12-23 | 1925-10-20 | Charles O Gustavsen | Machine for rolling gears |
US3352138A (en) * | 1965-10-23 | 1967-11-14 | Barber Colman Co | Tool for forming toothed parts |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2506702A1 (en) * | 1974-02-19 | 1975-08-21 | Ex Cell O Corp | TOOL FOR MANUFACTURING GEARS AND METHOD FOR MANUFACTURING THIS TOOL |
US9381097B2 (en) | 2003-06-25 | 2016-07-05 | DePuy Synthes Products, Inc. | Assembly tool for modular implants, kit and associated method |
US7297166B2 (en) | 2003-06-25 | 2007-11-20 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
US7582092B2 (en) | 2003-06-25 | 2009-09-01 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
US20090307887A1 (en) * | 2003-06-25 | 2009-12-17 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
US8419799B2 (en) | 2003-06-25 | 2013-04-16 | Depuy Products, Inc. | Assembly tool for modular implants and associated method |
US8685036B2 (en) | 2003-06-25 | 2014-04-01 | Michael C. Jones | Assembly tool for modular implants and associated method |
US8998919B2 (en) | 2003-06-25 | 2015-04-07 | DePuy Synthes Products, LLC | Assembly tool for modular implants, kit and associated method |
US9717545B2 (en) | 2007-10-30 | 2017-08-01 | DePuy Synthes Products, Inc. | Taper disengagement tool |
US8518050B2 (en) | 2007-10-31 | 2013-08-27 | DePuy Synthes Products, LLC | Modular taper assembly device |
US9119601B2 (en) | 2007-10-31 | 2015-09-01 | DePuy Synthes Products, Inc. | Modular taper assembly device |
WO2010121590A3 (en) * | 2009-04-24 | 2010-12-23 | Neumayer Tekfor Holding Gmbh | Shaping method and correspondingly shaped component |
US9101495B2 (en) | 2010-06-15 | 2015-08-11 | DePuy Synthes Products, Inc. | Spiral assembly tool |
US10166118B2 (en) | 2010-06-15 | 2019-01-01 | DePuy Synthes Products, Inc. | Spiral assembly tool |
US9867720B2 (en) | 2010-09-01 | 2018-01-16 | DePuy Synthes Products, Inc. | Disassembly tool |
US9095452B2 (en) | 2010-09-01 | 2015-08-04 | DePuy Synthes Products, Inc. | Disassembly tool |
US10292837B2 (en) | 2010-09-01 | 2019-05-21 | Depuy Synthes Products Inc. | Disassembly tool |
US9597188B2 (en) | 2011-04-06 | 2017-03-21 | DePuy Synthes Products, Inc. | Version-replicating instrument and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis |
US9949833B2 (en) | 2011-04-06 | 2018-04-24 | DePuy Synthes Products, Inc. | Finishing RASP and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis |
US10064725B2 (en) | 2011-04-06 | 2018-09-04 | DePuy Synthes Products, Inc. | Distal reamer for use during an orthopaedic surgical procedure to implant a revision hip prosthesis |
US9737405B2 (en) | 2011-04-06 | 2017-08-22 | DePuy Synthes Products, Inc. | Orthopaedic surgical procedure for implanting a revision hip prosthesis |
US10226345B2 (en) | 2011-04-06 | 2019-03-12 | DePuy Synthes Products, Inc. | Version-replicating instrument and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis |
US9504578B2 (en) | 2011-04-06 | 2016-11-29 | Depuy Synthes Products, Inc | Revision hip prosthesis having an implantable distal stem component |
US10603173B2 (en) | 2011-04-06 | 2020-03-31 | DePuy Synthes Products, Inc. | Orthopaedic surgical procedure for implanting a revision hip prosthesis |
US10772730B2 (en) | 2011-04-06 | 2020-09-15 | DePuy Synthes Products, Inc. | Finishing rasp and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis |
US10888427B2 (en) | 2011-04-06 | 2021-01-12 | DePuy Synthes Products, Inc. | Distal reamer for use during an orthopaedic surgical procedure to implant a revision hip prosthesis |
US10925739B2 (en) | 2011-04-06 | 2021-02-23 | DePuy Synthes Products, Inc. | Version-replicating instrument and orthopaedic surgical procedure for using the same to implant a revision hip prosthesis |
Also Published As
Publication number | Publication date |
---|---|
FR2024984A1 (en) | 1970-09-04 |
DE1960284A1 (en) | 1970-07-09 |
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