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1. 发明专利

JPS6146522B2 失效
公开(公告)号：JPS6146522B2
公开(公告)日：1986-10-15
申请号：JP10244681
申请日：1981-07-01
申请人： TOYOTA MOTOR CO LTD
发明人： SUGANUMA TETSUYA , KAZUOKA KOJI , FUJITA SHUICHI , TAKAHASHI YOSHITAKA , UEDA KATSUHIKO , NAKAMURA HITOSHI
IPC分类号： B22F7/08 , B22F7/06 , C22C33/02 , C22C38/00 , C22C38/38 , F16B4/00 , F16D1/06 , F16H53/00 , F16H53/02

2. 发明专利

JPS59219401A PRODUCTION OF SINTERED PARTS HAVING UNDERCUT SHAPE PART 失效
公开(公告)号：JPS59219401A
公开(公告)日：1984-12-10
申请号：JP9133083
申请日：1983-05-24
申请人： TOYOTA MOTOR CO LTD
发明人： NAKAMURA HITOSHI
IPC分类号： B22F3/02 , B22F5/00 , B22F5/06
摘要： PURPOSE:To produce easily sintered parts each having an undercut shape part on the side face by mounting an independent spacer in the section forming a part of dies and molding the spacer integrally with metallic powder in the process of powder molding, then removing the spacer. CONSTITUTION:Raw material metallic powder 4 is packed in dies constituted of a die 1, a lower punch 2 and a core rod 3 and the punch 5 is moved downward to compress and mold lightly the powder. The punch 5 is then moved upward and a spacer 7 is mounted in the section corresponding to an undercut shape; further the powder 4 is packed in the dies and is compressed and molded integrally by the punch 5, thereby forming a desired molding 8. The spacer 7 is removed and the molding is sintered to produce a sintered parts 9. The sintered parts having the undercut are thus easily obtd. without using the intricately constituted dies.

3. 发明专利

JPS5830508A METHOD OF FIXING FITTING MEMBER TO SHAFT MEMBER 失效
公开(公告)号：JPS5830508A
公开(公告)日：1983-02-23
申请号：JP10842581
申请日：1981-07-10
申请人： TOYOTA MOTOR CO LTD
发明人： UEDA KATSUHIKO , NAKAMURA HITOSHI , NAGURA TOSHIYUKI , TSUDA KAZUHIKO
IPC分类号： F16B4/00 , F16B9/00

4. 发明专利

JPS5830506A METHOD OF JOINING SHAFT MEMBER AND FITTING MEMBER 失效
公开(公告)号：JPS5830506A
公开(公告)日：1983-02-23
申请号：JP10842681
申请日：1981-07-10
申请人： TOYOTA MOTOR CO LTD
发明人： UEDA KATSUHIKO , NAKAMURA HITOSHI , TSUDA KAZUHIKO
IPC分类号： F16B3/04

5. 发明专利

JPS5829588A JOINING METHOD FOR SHAFT MEMBER AND FITTING MEMBER 失效
公开(公告)号：JPS5829588A
公开(公告)日：1983-02-21
申请号：JP11382181
申请日：1981-07-20
申请人： TOYOTA MOTOR CO LTD
发明人： UEDA KATSUHIKO , NAKAMURA HITOSHI , TSUDA KAZUHIKO
IPC分类号： F16B9/00 , B22F5/00 , B22F7/08 , B23K20/00
摘要： PURPOSE:To obviate the formation of diametral cambers on the outside circumferential surface of a fitting member, in the stage of compacting a powdery material for sintering to the fitting member, by providing recesses of a prescribed shape on both side surfaces in the axial direction of the fitting member, and inserting a shaft member into the hole of the fitting member then sintering both. CONSTITUTION:Recesses 8 of a shape hollowed by a depth d from the position nearer the center by a distance (t) from the outside circumferential surface are formed on both side surfaces 6 of a journal piece 4 which is a fitting member to be obtained when liquefied sintering powder is compacted by pressuring or preparatory sintering. A tubular cam shaft 1 is inserted and fitted into the hole 7 of the piece 4, and both are put in a sintering furnace and are subjected to regular sintering, whereby the joining by diffusion and shrinkage is effected. Since the surfaces 6 have the recesses 8, the rate of shrinkage is higher than in the central part in the axial direction of the piece 4 and since the tendency toward cambering of the outside circumferential surface of the piece 4 is negatated each other, an outside circumferential surface 5 parallel exactly with the axial direction can be obtained.

6. 发明专利

JPS582404A ASSEMBLY OF SHAFT MEMBER AND FITTING MEMBER 失效
公开(公告)号：JPS582404A
公开(公告)日：1983-01-08
申请号：JP9987281
申请日：1981-06-26
申请人： TOYOTA MOTOR CO LTD
发明人： TSUMIKI CHIAKI , UEDA KATSUHIKO , NAKAMURA HITOSHI , TSUDA KAZUHIKO , NAGURA TOSHIYUKI
IPC分类号： F01L1/04 , F16H53/02
摘要： PURPOSE:To prevent wrong mounting, either manual or automatic, of fitting members to a shaft member by providing a means for identifying the edge faces of fitting members. CONSTITUTION:A cam 1 is unsymmetrical with respect to an axis II-II, that is, has different curvatures at the closing side 1' and the open side 1'' of the nose 3 thereof. By forming a recess 4, an operative can visually confirm it or understand by his finger touch during manual assembly. The operative can therefore mount all the cams 1, 1 to a shaft member 2, having them oriented in the defined direction.

7. 发明专利

JPS5757909A Fixing method of fitting parts to shaft parts 失效
标题翻译：将零件装配到轴件的固定方法
公开(公告)号：JPS5757909A
公开(公告)日：1982-04-07
申请号：JP13146080
申请日：1980-09-24
申请人： Toyota Motor Co Ltd
发明人： UEDA KATSUHIKO , NAKAMURA HITOSHI , NAGURA TOSHIYUKI , TSUDA KAZUHIKO
IPC分类号： F16B4/00 , F16B7/04

8. 发明专利

JPS5675513A VERTICAL ROTARY TYPE CONTINUOUS HEATING APPARATUS 失效
公开(公告)号：JPS5675513A
公开(公告)日：1981-06-22
申请号：JP15312679
申请日：1979-11-27
申请人： TOYOTA MOTOR CO LTD
发明人： NAKAMURA HITOSHI , OONISHI TOSHIMI , TSUMIKI CHIAKI , TAKAHASHI AKIO
IPC分类号： B22F3/02 , B21J17/00 , B22F3/24 , C21D1/00 , F27B5/00 , F27B9/16
摘要： PURPOSE:To make possible the reduction of construction costs and the large volume production of sintered parts by supporting atmosphere protecting pipes at an equal interval on the rotary furnace body on the inner side of a stationary furnace body and freely elevatably disposing a retort inner provided with work supply racks in each of said protecting pipes. CONSTITUTION:In a titled apparatus consisting of a stationary furnace body 1 and a rotary furnace body 3 which is positioned on the inner side thereof and holds retort inners 4 being atmosphere protection tubes on the circumference at an equal interval, retort inners 5 provided with plural stages of racks 6 that can supply works 31 discretely from above into atmosphere protection pipes 4, an elevator of a rack 9, a motor 10, etc. which elevate stepwise the retort inners 5 at every interval of the racks 6, a heating chamber 34, an atmosphere gas supply pipe 13, etc. are disposed. According to the above-mentioned constitution, the carrying out and supply of even the parts of intricate shapes after sintering are free and productivity may be improved. This apparatus is suited for equipment for forging and heating of sintered materials.

9. 发明专利

JPS5570499A FORMING DEVICE OF SINTERED HELICAL GEAR 失效
公开(公告)号：JPS5570499A
公开(公告)日：1980-05-27
申请号：JP14506378
申请日：1978-11-24
申请人： TOYOTA MOTOR CO LTD
发明人： TSUMIKI CHIAKI , TAKAGI TOSHIJI , NAKAMURA HITOSHI , TSUDA KAZUHIKO
IPC分类号： B22F5/08 , B30B11/02
摘要： PURPOSE:To simplify the device and enhance the reliability and durability, by supporting the upper punch rotatably with respect to the upper ram. CONSTITUTION:The phases of upper punch 10 and die 1 are adjusted by means of set-screw. This plase adjustment is achieved only by rotating the set-screw. After filling a cavity 7 of die 1 with metal powder when an upper ram 18 of a powder forming press lowers, the upper punch 10 does not rotate up to the upper end face of the die 1, but goes down, so that fitting and meshing with the die 1 may be started on the upper end face of the die 1. When going down lower than the upper end face of the die 1, the upper punch base 11 and upper punch 10 descend while rotating, while the teeth 9 of the upper punch 10 are contacting and sliding on the tooth surface of the teeth 2 of the die 1, resisting the enforcing power of the rotating enforcing means, so that the metal powder in the cavity 7 is formed by compression. After completion of compression, the ram 18 is raised, and the upper punch 10 is drawn out of the die 1. Then, the lower ram is lowered together with the die 1, and the molding in the cavity 7 is pushed up by the lower punch 6, and the molding is taken out of the die 1.

10. 发明专利

JPS60108199A METHOD FOR REMOVING POWDER FROM GUIDE PART OF SIDE PUNCH IN POWDER MOLDING 失效
公开(公告)号：JPS60108199A
公开(公告)日：1985-06-13
申请号：JP21415783
申请日：1983-11-16
申请人： TOYOTA MOTOR CO LTD
发明人： NOMURA TADASHI , NAKAMURA HITOSHI
IPC分类号： B22F3/02 , B22F3/035 , B22F5/10 , B30B11/00 , B30B11/02 , B30B15/02
摘要： PURPOSE:To remove powder from a guide part and to mold and work the side face of a green compact to a prescribed shape by lowering the raw material powder packed into the molding space below the guide part of a side punch prior to compression molding of the green compact and making blank shooting with the side punch. CONSTITUTION:Raw material powder 20 is packed in the space enclosed of a die 10, a lower punch 12 and a core 15. When the die 10 is moved upward by an underfill, the powder 20 on the lower punch 12 is lowered relatively with the guide hole 16 of the side punch. When the side punch 17 is advanced to make blank shooting, the powder 20 remaining in the hole 16 till then is discharged by the punch 17 and is dropped into the lower part and the hollow part 14 in the core 15 by which the powder is removed. The punch 17 is retreated and an upper punch 13 is lowered. The powder 20 is compression-molded to a green compact 22 in the die by the punch 13 and the punch 12.

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