US20070266560A1 - Method of Manufacturing Sheet Metal Back Face Pulley - Google Patents

Method of Manufacturing Sheet Metal Back Face Pulley Download PDF

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Publication number
US20070266560A1
US20070266560A1 US11/791,709 US79170907A US2007266560A1 US 20070266560 A1 US20070266560 A1 US 20070266560A1 US 79170907 A US79170907 A US 79170907A US 2007266560 A1 US2007266560 A1 US 2007266560A1
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United States
Prior art keywords
cylindrical portion
annular
sheet metal
base plate
rotary
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.)
Abandoned
Application number
US11/791,709
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English (en)
Inventor
Toshiaki Kanemitsu
Kunihiro Harada
Naoki Fujii
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.)
Kanemitsu Corp
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Kanemitsu Corp
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Filing date
Publication date
Application filed by Kanemitsu Corp filed Critical Kanemitsu Corp
Assigned to KANEMITSU CORPORATION reassignment KANEMITSU CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJII, NAOKI, HARADA, KUNIHIRO, KANEMITSU, TOSHIAKI
Publication of US20070266560A1 publication Critical patent/US20070266560A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/261—Making other particular articles wheels or the like pulleys
    • 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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys
    • 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
    • Y10T29/49453—Pulley making
    • Y10T29/4946—Groove forming in sheet metal pulley rim

Definitions

  • the present invention relates to a method of producing a back face pulley made of a sheet metal, and more particularly to a method of producing a sheet metal-made back face pulley in which the effective length of a cylindrical portion that is to be in contact with the back face of a belt to support the back face of the belt can be increased.
  • Patent Literature 1 a sheet metal-made back face pulley which causes a cylindrical portion to be in contact with the back face of a belt to function as, for example, a tensioner is known.
  • the applicant of the present application has disclosed a production method in which the length of the cylindrical portion is increased (elongated) (Patent Literature 1).
  • a sheet metal-made cup-shaped material 4 comprising: a circular base plate portion 2 from which a boss portion 1 is projected; and a cylindrical portion 3 which extends from an outer peripheral portion of the base plate portion 2 in one direction along the axis C 1 of the base plate portion 2 is prepared.
  • a rotary lower mold 5 is fitted from a lower open-end portion of the cup-shaped material 4 , and a shaft portion 51 of the mold is fitted into the boss portion 1 .
  • a downward expansion 21 which is formed in the base plate portion 2 is fitted into a recess 52 of the rotary lower mold 5 , so that the cup-shaped material 4 is set to the rotary lower mold 5 so as to be radially immovable, and a rotary upper mold 6 is opposed to the upper side of the rotary lower mold 5 via the base plate portion 2 .
  • the rotary upper mold 6 is lowered as indicated by the arrow e in the right half of FIG. 8 , and a downward expansion 61 of the mold is fitted to the upper face of the downward expansion 21 of the base plate portion 2 , so that the base plate portion 2 of the cup-shaped material 4 is clampingly held by the upper end face of the rotary lower mold 5 and the lower end face of the rotary upper mold 6 .
  • at least one of the rotary lower mold 5 and the rotary upper mold 6 is rotated about the axis C 1 to rotate the rotary lower mold 5 , the rotary upper mold 6 , and the cup-shaped material 4 about the axis C 1 .
  • a first roll-forming roller 7 is moved in the direction of the arrow f, and a portion corresponding to an approximately lower half of the cylindrical portion 3 is clampingly pressed by a pressing face 71 which protrudes radially outward, and the outer circumferential face 53 of the rotary lower mold 5 .
  • This causes the portion corresponding to the approximately lower half of the cylindrical portion 3 to be downward drawn as indicated by the reference numeral 8 while the approximately lower half of the cylindrical portion 3 is thinned.
  • the cup-shaped material 4 in which the portion 8 corresponding to the approximately lower half of the cylindrical portion 3 is downward drawn while being thinned is set to a rotary lower mold 5 a so as to be radially immovable, and a rotary upper mold 6 a is opposed to the upper side of the rotary lower mold 5 a via the base plate portion 2 .
  • the rotary lower mold 5 a which is slightly smaller in diameter than the rotary lower mold 5 used in FIG. 8 is used. Therefore, a small gap s is formed between the outer circumferential face 53 a of the rotary lower mold 5 a and the cylindrical portion 3 .
  • a cutaway 62 which allows ingress of an outer peripheral edge of an upper end portion of a second roll-forming roller that will be described later is formed in an outer peripheral edge portion of the rotary upper mold 6 a .
  • portions corresponding to those of the rotary lower mold 5 and rotary upper mold 6 which are shown in FIG. 8 are denoted by the same reference numerals.
  • the rotary upper mold 6 a is lowered as indicated by the arrow g in the right half of FIG. 9 , and a downward expansion 61 of the mold is fitted to the upper face of the downward expansion 21 of the base plate portion 2 , so that the base plate portion 2 of the cup-shaped material 4 is clampingly held by the upper end face of the rotary lower mold 5 a and the lower end face of the rotary upper mold 6 a .
  • at least one of the rotary lower mold 5 a and the rotary upper mold 6 a is rotated about the axis C 1 to rotate the rotary lower mold 5 a , the rotary upper mold 6 a , and the cup-shaped material 4 about the axis C 1 .
  • a second roll-forming roller 9 is moved in the direction of the arrow h, and a thick portion 3 a (see the left half of FIG. 9 ) corresponding to an approximately upper half of the cylindrical portion 3 is clampingly pressed by a pressing face 91 which is recessed radially inward, and the outer circumferential face 53 a of the rotary lower mold 5 a .
  • This causes the thick portion 3 a to be downward drawn as indicated by the reference numeral 10 in the right half of FIG. 9 while being thinned, with the result that the cylindrical portion 3 in which the outer circumferential face is flat can be produced.
  • the cup-shaped material 4 in which the thickness t 1 of the cylindrical portion 3 shown in FIG. 10 is large and the axial length h 1 of the cylindrical portion 3 is small the cylindrical portion 3 in which, as shown in FIG. 11 , the thickness t 2 is small and the axial length h 2 is larger than the axial length h 1 in FIG. 9 can be produced.
  • Patent Literature 1 WO98/05447
  • the conventional method of enlarging a cylindrical portion merely provides a method of simply clampingly pressing a portion corresponding to an approximately lower half of the cylindrical portion 3 which extends in one direction along the axis C 1 of the base plate portion 2 , thereby downward extending the portion while being thinned.
  • a first step of downward extending while thinning work hardening is caused in the portion which has been thinned and downward extended.
  • the thick portion 3 a corresponding to the approximately upper half of the cylindrical portion 3 must be extended toward the portion where work hardening is caused in the first step, while being thinned. Therefore, molding in which the thick portion 3 a is extended is relatively troublesome.
  • an effective length h 3 of the cylindrical portion 3 with which the back face of a belt can be in contact is limited to a value which is obtained by subtracting the axial length ⁇ h of the upper-end curved portion 11 b of the cylindrical portion 3 from the axial length h 2 of the cylindrical portion 3 .
  • the invention solves these problems. It is an object of the invention to provide a method of producing a sheet metal-made back face pulley in which the effective length of a cylindrical portion that can be contacted with the back face of a belt can be increased, molding is easily conducted, and accurate flatness and dimensionality can be obtained by a reduced number of steps.
  • the method of producing a sheet metal-made back face pulley according to the invention is characterized in that a sheet metal-made cup-shaped material comprising: a circular base plate portion; and a cylindrical portion which extends from an outer peripheral edge portion of the base plate portion in one direction along an axis of the base plate portion is prepared, an annular expansion is formed in the cylindrical portion, and the annular expansion is clampingly pressed by a rotary inner mold and a flat-face forming rolling roller to a degree at which at least the annular expansion disappears, whereby an outer circumferential face of the cylindrical portion is flatly formed.
  • the annular expansion is clampingly pressed by the rotary inner mold and the flat-face forming rolling roller to a degree at which at least the annular expansion disappears, whereby the expanding volume amount of the annular expansion is converted into the extended distance by which the cylindrical portion is axially extended. Therefore, the axial length of the sheet metal-made cup-shaped material is larger than the original length (original dimension) correspondingly with the expanding volume amount, and it is possible to provide a sheet metal-made back face pulley in which the increased axial length can be used as the effective length.
  • annular expansion is clampingly pressed by the rotary inner mold and the flat-face forming rolling roller to a degree at which the annular expansion disappears, to flatten the outer circumferential face of the cylindrical portion
  • molding can be conducted by a clamping press force which is smaller as compared with the case where the whole outer circumferential face of the cylindrical portion is clampingly pressed to be flatly formed. Therefore, molding is facilitated, and accurate flatness and dimensionality can be obtained by a reduced number of steps.
  • the cylindrical portion is not work-hardened or is low in degree of work hardening. Therefore, the conversion of the expanding volume amount of the annular expansion into the axial extended distance of the cylindrical portion is smoothly performed, and the production efficiency can be enhanced.
  • the whole of the increased axial length can be used as the effective length, for example, it is possible to attain an effect that a small positional displacement in the width direction of a belt is absorbed, and a stable contact state with the back face of the belt can be maintained.
  • the annular expansion is formed by expansion in a radially outward direction of the cylindrical portion.
  • an upper end portion of the cylindrical portion is pressed by a groove-forming protrusion disposed in a roll-forming roller, to form an annular groove in the upper end portion of the cylindrical portion, and an annular projection that projects in a direction opposite to a direction along which the cylindrical portion extends is formed above the annular groove.
  • the annular projection that projects in the direction opposite to the direction along which the cylindrical portion extends is formed in the cylindrical portion. Therefore, the axial length of the sheet metal-made cup-shaped material can be further increased correspondingly with the projection distance of the annular projection.
  • FIG. 1 is a longitudinal sectional view showing a step of forming a small valley-shaped groove in a sheet metal-made cup-shaped material which is applied to an embodiment of the invention.
  • FIG. 2 is a longitudinal sectional view showing a step of forming an annular expansion in a cylindrical portion of the sheet metal-made cup-shaped material which is worked in FIG. 1 .
  • FIG. 3 is a half-cutaway longitudinal sectional view showing a step of flattening the outer circumferential face of the cylindrical portion of the sheet metal-made cup-shaped material which is worked in FIG. 2 .
  • FIG. 4 is a longitudinal sectional view showing an example of the sheet metal-made cup-shaped material which is applied to the embodiment of the invention.
  • FIG. 5 is a longitudinal sectional view showing a sheet metal-made back face pulley which is produced by the sheet metal-made cup-shaped material of FIG. 4 .
  • FIG. 6 is a longitudinal sectional view showing another example of the sheet metal-made cup-shaped material.
  • FIG. 7 is a longitudinal sectional view showing a sheet metal-made back face pulley which is produced by the sheet metal-made cup-shaped material of FIG. 6 .
  • FIG. 8 is a longitudinal sectional view showing a first working stage of extending a cylindrical portion of a conventional sheet metal-made cup-shaped material.
  • FIG. 9 is a longitudinal sectional view showing a second working stage of further extending the cylindrical portion of the conventional sheet metal-made cup-shaped material which is worked in FIG. 8 .
  • FIG. 10 is a longitudinal sectional view of a sheet metal-made cup-shaped material which is used in a conventional production method.
  • FIG. 11 is a longitudinal sectional view showing a state where a cylindrical portion of the sheet metal-made cup-shaped material of FIG. 10 is extended in one direction.
  • the embodiment uses the cup-shaped material 4 comprising: the circular base plate portion 2 from which the boss portion 1 where the axis C 1 is set as the center axis is projected; and the cylindrical portion 3 which extends from an outer peripheral portion of the base plate portion 2 in one direction along the axis C 1 of the base plate portion 2 is used.
  • the circular base plate portion 2 a higher portion on the side of the boss portion 1 is continuous to a lower portion on the side of the cylindrical portion 3 via an annular stepped portion 22 .
  • the cup-shaped material 4 is fitted from the lower open end portion of the material onto a rotary lower mold 5 b , the boss portion 1 of the cup-shaped material 4 is fitted onto a shaft 51 of the rotary lower mold 5 b , and an annular stepped face 54 of the rotary lower mold 5 b is fitted to the inner face of the annular stepped portion 22 disposed in the base plate portion 2 , so that the cup-shaped material 4 is set to the rotary lower mold 5 b so as to be radially immovable. Thereafter, the rotary upper mold 6 a is opposed to the upper side of the rotary lower mold 5 b via the base plate portion 2 .
  • the rotary upper mold 6 a is lowered as indicated by the arrow e in the right half of FIG. 1 , and the annular stepped portion 22 of the base plate portion 2 is fitted to an annular stepped face 63 formed in the lower end of the rotary upper mold 6 a , so that the base plate portion 2 of the cup-shaped material 4 is clampingly held by the upper end face of the rotary lower mold 5 b and the lower end face of the rotary upper mold 6 a .
  • At least one of the rotary lower mold 5 b and the rotary upper mold 6 a is rotated about the axis C 1 to rotate the rotary lower mold 5 b , the rotary upper mold 6 a , and the cup-shaped material 4 about the axis C 1 .
  • a first roll-forming roller 70 While rotating the cup-shaped material 4 in this way, a first roll-forming roller 70 is moved in the direction of the arrow f, so that a first groove-forming protrusion 72 having a mountain-like section shape which is protruded radially outward in the vicinity of an upper end portion of the first roll-forming roller 70 is pressed radially inward into an upper end portion of the cylindrical portion 3 , and the cylindrical-portion pressing face 71 of the first roll-forming roller 70 is caused to butt against the outer circumferential face 30 of the cylindrical portion 3 . While the first roll-forming roller 70 reversely rotates with following the rotation of the cup-shaped material 4 , therefore, an annular first groove 12 that is opened in a valley-like shape is formed in an outer peripheral edge of the upper end portion of the cylindrical portion 3 .
  • the cup-shaped material 4 A in which the annular first groove 12 and the annular projection 14 are formed is fitted from a lower open end portion of the material onto a rotary lower mold 5 c , and the boss portion 1 of the cup-shaped material 4 A is fitted onto the shaft 51 of the rotary lower mold 5 c .
  • An annular stepped face 55 of the rotary lower mold 5 c is fitted to the inner face of the annular stepped portion 22 disposed in the base plate portion 2 , so that the cup-shaped material 4 A is set to the rotary lower mold 5 c so as to be radially immovable.
  • the rotary upper mold 6 b is lowered as indicated by the arrow e, and the annular stepped portion 22 of the base plate portion 2 is fitted to an annular stepped face 64 formed in the lower end of the rotary upper mold 6 b , so that the base plate portion 2 of the cup-shaped material 4 is clampingly held by the upper end face of the rotary lower mold 5 c and the lower end face of the rotary upper mold 6 b .
  • At least one of the rotary lower mold 5 c and the rotary upper mold 6 b is rotated about the axis C 1 to rotate the rotary lower mold 5 c , the rotary upper mold 6 b , and the cup-shaped material 4 A about the axis C 1 .
  • a second roll-forming roller 90 is moved in the direction of the arrow h with respect to the cup-shaped material 4 A which rotates about the axis C 1 together with the rotary lower mold 5 c and the rotary upper mold 6 b as described above, whereby a second groove-forming protrusion 92 which is protruded radially outward in the vicinity of an upper end portion of the second roll-forming roller 90 is fitted into the annular first groove 12 (see the right half of FIG. 1 ) which has been already opened in a valley-like shape, to be pressed radially inward, and the cylindrical-portion pressing face 91 is caused to butt against the outer circumferential face 30 of the cylindrical portion 3 .
  • the second groove-forming protrusion 92 having a mountain-like section shape in which a mountain peak portion is rounder than the first groove-forming protrusion 72 is fitted into the annular first groove 12 to be pressed radially inward, and the cylindrical-portion pressing face 91 is caused to butt against the outer circumferential face 30 of the cylindrical portion 3 .
  • the cup-shaped material 4 B in which the annular second groove 13 , the annular projection 15 , and the expansion 40 that is radially outward expanded are formed is fitted from a lower open end portion of the material onto a rotary lower mold 5 d , and the boss portion 1 of the cup-shaped material 4 B is fitted onto the shaft 51 of the rotary lower mold 5 d .
  • An annular stepped face 56 of the rotary lower mold 5 d is fitted to the inner face of the annular stepped portion 22 disposed in the base plate portion 2 , so that the cup-shaped material 4 B is set to the rotary lower mold 5 d so as to be radially immovable.
  • the rotary upper mold 6 c is lowered as indicated by the arrow g, and the annular stepped portion 22 of the base plate portion 2 is fitted to an annular stepped face 65 formed in the lower end of the rotary upper mold 6 c , so that the base plate portion 2 of the cup-shaped material 4 B is clampingly held by the upper end face of the rotary lower mold 5 d and the lower end face of the rotary upper mold 6 c .
  • At least one of the rotary lower mold 5 d and the rotary upper mold 6 c is rotated about the axis C 1 to rotate the rotary lower mold 5 d , the rotary upper mold 6 c , and the cup-shaped material 4 B about the axis C 1 .
  • the expanding volume amount of the annular expansion 40 is converted into the extended distance by which the cylindrical portion 3 is axially extended. Therefore, the axial length of the sheet metal-made cup-shaped material 4 C is larger than the original length (original dimension) correspondingly with the distance corresponding to the expanding volume amount. Furthermore, the outer circumferential face 15 a of the annular projection 15 , and the outer circumferential face 30 of the cylindrical portion 3 are formed to be flush with each other, and the annular projection 15 is upward extended while being thinned so that the projection distance of the projection is larger than that shown in the right half of FIG. 2 . Therefore, a sheet metal-made back face pulley 11 in which the axial length is further increased can be produced.
  • the annular expansion 40 that is radially outward expanded is clampingly pressed by the rotary lower mold 5 d and the flat-face forming rolling roller 16 to a degree at which the annular expansion 40 disappears, whereby the outer circumferential face 30 of the cylindrical portion 3 is flatly formed.
  • molding can be conducted by a smaller clamping press force. Therefore, molding is facilitated, and accurate flatness and dimensionality can be obtained by a reduced number of steps.
  • the cylindrical portion 3 is not work-hardened in the preceding stage in which the annular expansion 40 is clampingly pressed, the conversion of the expanding volume amount of the annular expansion 40 into the axial extended distance of the cylindrical portion 3 is smoothly performed, and the production efficiency can be enhanced.
  • the sheet metal-made back face pulley 11 in which, as shown in FIG. 3 and FIG. 5 , the thickness t 2 of the cylindrical portion 3 is small, the axial length h 4 is increased more than the axial length h 1 of FIG. 4 , and the whole of the increased axial length h 4 can be used as the effective length can be produced by the sheet metal-made cup-shaped material 4 in which the thickness t 1 of the cylindrical portion 3 shown in the left half of FIG. 1 and FIG. 4 is large and the axial length h 1 is small.
  • the whole of the increased axial length h 4 can be used as the effective length, for example, an effect that a small positional displacement in the width direction of a belt is absorbed, and a stable contact state with the back face of the belt can be maintained is attained.
  • the annular second groove 13 When, as shown in the left half of FIG. 2 , the annular second groove 13 is formed within the range of the thickness t 1 of the cylindrical portion 3 of the cup-shaped material 4 , the annular second groove 13 does not enter the base plate portion 2 , and it is possible to prevent an disadvantage that the base plate portion 2 is thinned to reduce its strength, from occurring. Therefore, reduction of the buckling strength of the base plate portion 2 can be avoided.
  • the first groove-forming protrusion 72 having a mountain-like section shape is used as shown in the right half of FIG. 1 , and the first groove-forming protrusion 72 is pressed radially inward, the bottom of the annular first groove 12 is positioned approximately on the center line C 2 of the axial thickness of the base plate portion 2 .
  • the second groove-forming protrusion 92 having a mountain-like section shape in which a mountain peak portion is rounded is used as shown in the left half of FIG.
  • the second groove-forming protrusion 92 is pressed into the annular first groove 12 , so that the bottom of the annular second groove 13 is positioned on the center line C 2 , whereby, in the cylindrical portion 3 , a large thickness of a portion which is upper than the center line C 2 is ensured.
  • the portion in which a large thickness is ensured is projected in the direction opposite to the direction along which the cylindrical portion 3 extends, and the annular projection 15 can be formed. Therefore, the projection distance in the direction opposite to the direction along which the cylindrical portion 3 extends can be sufficiently ensured while preventing the annular projection 15 from being thinned, and the length h 4 (see FIG. 5 ) from the upper end of the base plate portion 2 of the sheet metal-made back face pulley 11 to the lower end of the cylindrical portion 3 can be increased.
  • the method in which the sheet metal-made back face pulley 11 shown in FIG. 5 is produced by the sheet metal-made cup-shaped material 4 comprising: the circular base plate portion 2 from which the boss portion 1 shown in FIG. 4 is projected; and the cylindrical portion 3 which extends from the outer peripheral portion of the base plate portion 2 in one direction along the axis C 1 of the base plate portion 2 has been described.
  • the sheet metal-made back face pulley 11 in which, as shown in FIG. 7 , the thickness t 2 of the cylindrical portion 3 is small, the axial length h 4 is larger than the axial length h 1 in FIG. 6 , and the increased axial length h 4 can be used as the effective length can be produced as shown in, for example, FIG.
  • the sheet metal-made cup-shaped material 4 comprising: the circular base plate portion 2 from which the boss portion 1 (see FIG. 4 ) is omitted; and the cylindrical portion 3 which extends from the outer peripheral portion of the base plate portion 2 in one direction along the axis C 1 of the base plate portion 2 .
  • the invention is the technique in which, in a sheet metal-made cup-shaped material comprising: a circular base plate portion; and a cylindrical portion which extends from an outer peripheral edge portion of the base plate portion in one direction along an axis of the base plate portion, an annular expansion which is expanded radially outward is formed in the cylindrical portion, and the annular expansion is clampingly pressed by a rotary inner mold and a flat-face forming rolling roller to a degree at which at least the annular expansion disappears, whereby an outer circumferential face of the cylindrical portion is flatly formed, so that the axial length of the cylindrical portion is increased, and the increased axial length can be used as the effective length, whereby a small positional displacement in the width direction of a belt is absorbed, and a stable contact state with the back face of the belt can be maintained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US11/791,709 2004-12-10 2004-12-10 Method of Manufacturing Sheet Metal Back Face Pulley Abandoned US20070266560A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/018471 WO2006061909A1 (ja) 2004-12-10 2004-12-10 板金製背面プーリの製造方法

Publications (1)

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US20070266560A1 true US20070266560A1 (en) 2007-11-22

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US11/791,709 Abandoned US20070266560A1 (en) 2004-12-10 2004-12-10 Method of Manufacturing Sheet Metal Back Face Pulley

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US (1) US20070266560A1 (zh)
EP (1) EP1834715A4 (zh)
JP (1) JP4677414B2 (zh)
CN (1) CN100455376C (zh)
WO (1) WO2006061909A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524595A (en) * 1983-09-19 1985-06-25 Kabushiki Kaisha Kanemitsu Method of manufacturing sheet metal made poly-V pulleys
US4631946A (en) * 1984-03-02 1986-12-30 Kabushiki Kaisha Kanemitsu Method of manufacturing sheet metal made poly-V pulleys
US4831705A (en) * 1987-06-17 1989-05-23 Kabushiki Kaisha Kanemitsu Method of manufacturing a sheet metal poly-V pulley
US5941113A (en) * 1996-08-05 1999-08-24 Kabushiki Kaisha Kanemitsu Method of forming a cylindrical portion of a cylindrical member made of a metal sheet
US6381847B1 (en) * 1999-03-15 2002-05-07 Kanemitsu Corporation Method of manufacturing poly-V-pulley
US6691542B2 (en) * 2000-09-26 2004-02-17 Aisin Aw Co., Ltd. Method and apparatus for manufacturing a cylindrical member, and cylindrical member having splines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526072B2 (ja) * 1987-09-30 1996-08-21 旭テック株式会社 スピニング裂開装置
KR930007661B1 (ko) * 1989-06-28 1993-08-18 가부시끼가이샤 가네미쯔 판금제 폴리 v풀리의 제조방법
WO1991000785A1 (en) * 1989-07-11 1991-01-24 Kabushiki Kaisha Kanemitsu Method of forming lugs of sheet metal poly-v-groove-pulley and products obtained thereby
JP3053219B2 (ja) * 1993-12-09 2000-06-19 ヴェーエフ・マシーネンバウ ウント ブレッヒフォルムテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト ハブを有する伝動装置部材のハブを切削によらずに製造する方法
JP2556817B2 (ja) * 1994-03-02 1996-11-27 株式会社カネミツ 板金製プーリの製造方法
JP2819085B2 (ja) * 1994-04-01 1998-10-30 株式会社レイズエンジニアリング 回転鍛造装置及びこれを用いた自動車用ホイールの製造方法
CN1198693A (zh) * 1996-08-05 1998-11-11 株式会社金光 板金制筒状构件的筒部成形方法
JP3213808B2 (ja) * 1997-10-06 2001-10-02 株式会社カネミツ 周壁を有する板金製輪状部材の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524595A (en) * 1983-09-19 1985-06-25 Kabushiki Kaisha Kanemitsu Method of manufacturing sheet metal made poly-V pulleys
US4631946A (en) * 1984-03-02 1986-12-30 Kabushiki Kaisha Kanemitsu Method of manufacturing sheet metal made poly-V pulleys
US4831705A (en) * 1987-06-17 1989-05-23 Kabushiki Kaisha Kanemitsu Method of manufacturing a sheet metal poly-V pulley
US5941113A (en) * 1996-08-05 1999-08-24 Kabushiki Kaisha Kanemitsu Method of forming a cylindrical portion of a cylindrical member made of a metal sheet
US6381847B1 (en) * 1999-03-15 2002-05-07 Kanemitsu Corporation Method of manufacturing poly-V-pulley
US6691542B2 (en) * 2000-09-26 2004-02-17 Aisin Aw Co., Ltd. Method and apparatus for manufacturing a cylindrical member, and cylindrical member having splines

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Publication number Publication date
JPWO2006061909A1 (ja) 2008-06-05
CN100455376C (zh) 2009-01-28
EP1834715A4 (en) 2010-05-26
JP4677414B2 (ja) 2011-04-27
EP1834715A1 (en) 2007-09-19
WO2006061909A1 (ja) 2006-06-15
CN101076414A (zh) 2007-11-21

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