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51. 发明专利

JPH0220342B2 失效
公开(公告)号：JPH0220342B2
公开(公告)日：1990-05-09
申请号：JP14524985
申请日：1985-07-02
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI
IPC分类号： B21D53/26

52. 发明专利

JP2001225135A FORM ROLLING METHOD OF RIM, PRE-FORMING ROLLER DIE USED THEREFOR, AND MANUFACTURING METHOD OF BRAKE SHOE 失效
公开(公告)号：JP2001225135A
公开(公告)日：2001-08-21
申请号：JP2000034843
申请日：2000-02-14
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , KANEMITSU HIDEJI
IPC分类号： F16H55/36 , B21D53/26 , B21H1/04 , F16D65/06 , F16D65/08
摘要： PROBLEM TO BE SOLVED: To provide a rim form rolling method in which a rim can be correctly split at an arbitrary position in the thickness direction of an outer circumferential surface of a blank. SOLUTION: A pre-forming roller die 7 constituted so that recessed groove 8 is formed in the circumferential direction of an outer circumferential surface 7a, and a groove-forming blade 9 is projected from an inner bottom portion of the recessed groove 8 is the circumferential direction, is prepared. Pre-forming of forming an outer circumferential groove 11 is implemented by the groove forming blade 9 around the whole outer circumferential portion of the blank 1 by pressing the recessed groove 8 in the pre-forming roller die 7 and the groove-forming blade 9 against the outer circumferential portion 10 of the disk- like metal blank 1. The rims 15a and 15b are expanded while splitting the outer circumferential portion 10 of the blank 10 into two pieces in the thickness direction by pressing an expanding blade 13 of an expanding roller die 12 with the expanding blade 13 projected in the circumferential direction of the outer circumferential surface 12a against an outer circumferential groove 11 of the blank 1.

53. 发明专利

JP2939619B1 失效
公开(公告)号：JP2939619B1
公开(公告)日：1999-08-25
申请号：JP24207998
申请日：1998-08-27
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , TAKAHASHI YASUHIRO
IPC分类号： B21D37/14 , B21D53/26

54. 发明专利

JPH1085845A CHAMFERING METHOD OF BOSS EDGE PART IN SHEET METAL CIRCULAR MEMBER 失效
公开(公告)号：JPH1085845A
公开(公告)日：1998-04-07
申请号：JP24833896
申请日：1996-09-19
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , HARADA KUNIHIRO , FUJII NAOKI
IPC分类号： B21D19/00 , B21D53/26
摘要： PROBLEM TO BE SOLVED: To chamfer the boss edge part of a sheet metal circular member without generating chip. SOLUTION: This method is composed of the outside chamfering process chamfering the outside edge part by pressing a chamfer forming surface 31 of a second die 30 to the outside edge part of the tip end of the boss 2 of the sheet metal circular member W outside-fitted into the projecting part of a first die 10 and the inside chamfering process chamfering the inside edge part by pressing the chamfer forming surface of a fourth die to the inside edge part 22 of the tip end of the boss 2 of the sheet metal circular member W inside-fitted into the cylindrical part of a third die. The outside chamfering process and the inside chamfering process may be successively executed by an optional order or may be simultaneously executed.

55. 发明专利

JPH1034265A SHEET METAL HAVING BOSS PART AND METHOD FOR FORMING THE BOSS PART 失效
公开(公告)号：JPH1034265A
公开(公告)日：1998-02-10
申请号：JP11134097
申请日：1997-04-28
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , ODA KAZUYUKI
IPC分类号： B21D53/26 , B21H1/04
摘要： PROBLEM TO BE SOLVED: To obtain a boss part with small diameter and high height even in the cylindrical boss part being bent from a flat part and projected as one body in a sheet metal. SOLUTION: A metal blank 1 which is bent in a chevron projection and whose top is drilled in a hole 5A is produced, the bent part 1b between the outside circumferential periphery 1e of the blank 1 and the circumferential side part 1c of the hole is pressed to the reverse direction to the bulging direction is pressed and drawn in a cylindrical like and the height of a longer dimension than a radius dimension r1 of the internal diameter of a boss part 6 to be formed, and the cylindrical boss part 6 of the height h1 with the dimension of longer than the radius dimension r1 is formed.

56. 发明专利

JPH0985381A FORMATION OF TOOTH TOP PART OF SHEET METAL-MADE INTERNAL GEAR 失效
公开(公告)号：JPH0985381A
公开(公告)日：1997-03-31
申请号：JP24629995
申请日：1995-09-25
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , KANEMITSU HIDEJI , NISHIOKA HIRONORI
IPC分类号： B21H5/00 , B21K1/30
摘要： PROBLEM TO BE SOLVED: To precisely finish the base part of a tooth top part in the shape without an underfill part, in the case of forming the tooth top part of an internal gear by increasing the thickness of a part corresponding to the recessed part forming space of a rotary inner die on the peripheral wall of a cupped blank. SOLUTION: While rotating the cupped blank W fitted to the rotary inner die 1 together with the rotary inner die 1, the connecting part 103 of the base part 101 of the cupped blank W with the peripheral wall 102 is pressed at a fixed position to allow the material at the connecting part 103 to flow into the recessed part forming space 11 of the rotary inner die 1. At the time of filling the recessed part forming die 11 with the material at the connecting part 103, the base part of the tooth top part of the internal gear is finished in the shape without the underfill part. Thereafter, the peripheral wall 102 is pressed to the rotary inner die 1 side to finish the tooth top part.

57. 发明专利

JPH0985380A FORMATION OF INTERNAL GEAR 失效
公开(公告)号：JPH0985380A
公开(公告)日：1997-03-31
申请号：JP24629895
申请日：1995-09-25
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , KANEMITSU HIDEJI , NISHIOKA HIRONORI
IPC分类号： B21H5/00 , B21K1/30
摘要： PROBLEM TO BE SOLVED: To provide a method, by which a sheet metal made of a steel, etc., can easily be formed into an internal gear with high precision without using many working processes. SOLUTION: A cylindrical work W is tightly fitted into a rotary inner die 1 and the outer peripheral surface of the work W is pressed inward in its radial direction with press die (forming roller 20) while rotating the work W together with the rotary inner die 1. The work W is thickened at the position corresponding to a recessed part forming space of the rotary inner die 1 by this pressing while allowing the material of the work to flow toward the inner part of the recessed part forming space and also, the flow of the material of the work W entering the recessed part forming space in the axial direction is blocked with tooth top part axial end forming surface 4. The thickness of the work W is reduced at the position corresponding to the projecting part 3 of the rotary inner die 1, and this projecting part 3 enters the material of the work W allowed to flow into the recessed part forming space 2.

58. 发明专利

JP2544304B2 失效
公开(公告)号：JP2544304B2
公开(公告)日：1996-10-16
申请号：JP6856094
申请日：1994-04-06
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI , ODA KAZUYUKI
IPC分类号： B21D22/30 , B21D53/26 , B21H1/04
摘要： PURPOSE:To form a cuplike recessing part without drawing in reverse in a producing method for a pulley of sheet metal having the cuplike recessing part for attaching a bearing. CONSTITUTION:This production consists of a drawing process to form a hollowed hemispheric pre-recessing part and a flange part of a flat sheet metal blank, a recessing part finishing process to finish the pre-recessing part into a cup like recessing part being able to fit with a bearing, a drum wall forming process to bend a flange-like part 12 to the recessing direction of the cup-like recessing part and to form it into a drum wall for winding a belt, and a receiving part forming process to form an opening with a prescribed diameter on the central part of the bottom wall of the cup-like recessing part and to provide an inner flange-like receiving part 24 surrounding the opening.

59. 发明专利

JP2523023B2 失效
公开(公告)号：JP2523023B2
公开(公告)日：1996-08-07
申请号：JP19748189
申请日：1989-07-28
申请人： KANEMITSU KK
发明人： KANEMITSU TOSHIAKI
IPC分类号： B21D22/28 , B21D51/16 , B21D53/30 , B21H1/18

60. 发明专利

JPH08168840A MANUFACTURE OF END MEMBER OF SHELL TO BE CONNECTED TO EXHAUST PIPE 失效
公开(公告)号：JPH08168840A
公开(公告)日：1996-07-02
申请号：JP31202594
申请日：1994-12-15
申请人： KANEMITSU KK
发明人： TANABE KOJI , NISHIOKA HIRONORI , KANEMITSU TOSHIAKI , ODA KAZUYUKI
IPC分类号： B21D19/00 , B21D19/04 , B21D41/04 , B21D53/84
摘要： PURPOSE: To manufacture an end member for a welded joined part which is a weak point in strength, in the end member of a shell for a catalytic converter for purifying exhaust gas of an automobile. CONSTITUTION: The middle part of a cylindrical material A is drawn in the axial direction, thereby forming a flared body part 12, 13 on both ends from the drawn part 14; then, one body part 12 is expanded in the direction vertical to its axial center to form a flange part 2 in an annular ring shape; and the other body part 13 is formed into a tunnel-shaped body 5 to be a part connecting with the body of the shell.

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