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71. 发明专利

JPH0921430A HYDRAULIC CLUTCH DEVICE AND SEALING STRUCTURE FOR HYDRAULIC CIRCUIT 失效
公开(公告)号：JPH0921430A
公开(公告)日：1997-01-21
申请号：JP17228195
申请日：1995-07-07
申请人： JATCO CORP
发明人： MIZUTA MUNEO
IPC分类号： F16D13/74 , F16D25/12 , F16H57/028 , F16H57/029 , F16H57/03 , F16H57/04
摘要： PROBLEM TO BE SOLVED: To improve the workability by forming each seal surface along the rotary shaft direction, and providing a second seal member between both the seal surfaces so that the clutch operating oil, which passes through inside a delivery space, can be supplied into a oil pressure chamber without generating a leak even in the case where a clutch drum is moved in the rotary shaft extending direction. SOLUTION: A reverse clutch 30 of an automatic transmission supplies the operating oil to a pressure-oil chamber 13 through an oil passage 37, which is formed in an oil pump cover 27, so as to move a clutch piston 12 right, and obtains the clutch contact condition. In this case, a seal surface part 40 formed along the extending direction of an input shaft 4 and a disk side seal surface part 41 formed with a recessed part 41a in the periphery thereof at the disk part 29 side and the base side seal surface part 42 formed with a flange in the circumference of the base part 31 are provided opposite to the disk part 29 of the oil pump cover 27 and the base part 31 of a clutch drum 34. An oil seal ring 43 is interposed between both the seal surface parts 41, 42 so as to prevent the leak of the operating oil.

72. 发明专利

JPH0914309A HELICAL SPLINE AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JPH0914309A
公开(公告)日：1997-01-14
申请号：JP16839695
申请日：1995-07-04
申请人： KYOWA GOKIN KK , JATCO CORP
发明人： HIRAIWA KAZUMI , SHIBUYA MASAKI
IPC分类号： F16D63/00
摘要： PROBLEM TO BE SOLVED: To provide a helical spline low in its manufacturing costs and having a sufficient strength by a third spline surface for stopping rotation when rotated in an opposite direction in addition to first and second spline surfaces. SOLUTION: In addition to first and second spline surfaces 14 and 34 and 16 and 36 having twisted spline functions which each normal helical spline has, third spline surfaces 18 and 39 becoming stoppers when the outer rings thereof are rotated in a direction opposite that for applying one-way braking against thrust rings and receiving torque. Thus, when one-way braking is applied, torque is received by the first spline surfaces 14 and 34 and torque of an opposite direction is received by the third spline surfaces 18 and 38. Therefore, helical splines 12 and 32 are formed by a plasticizing process such as molding and the like and a sufficient strength is secured.

73. 发明专利

JPH0914292A ENGAGING ELEMENT FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0914292A
公开(公告)日：1997-01-14
申请号：JP16839595
申请日：1995-07-04
申请人： KYOWA GOKIN KK , JATCO CORP
发明人： HIRAIWA KAZUMI , SHIBUYA MASAKI
IPC分类号： F16D25/06 , F16D25/063 , F16D25/0632
摘要： PROBLEM TO BE SOLVED: To reduce a manufacturing cost and drag resistance in an engaging element for an automatic transmission. SOLUTION: As engaging element for an automatic transmission is provided with an outer ring 50 pressed by a second piston 88 and having a conical face 52 coming in contact with a conical face 44 of an inner ring 42 connected to a planetary gear member, and a thrust ring 60 connected to the outer ring 50 by a helical spline 54 and also connected to a case 80 or another planetary gear member and axially moved being pressed by a first piston 84 restricted in a range of moving axially in relation to the outer ring 50 and in a range of moving in relation to the case 80 or another planetary gear member.

74. 发明专利

JPH08329782A SHAFT JOINING STRUCTURE OF INHIBITOR SWITCH 失效
公开(公告)号：JPH08329782A
公开(公告)日：1996-12-13
申请号：JP15520695
申请日：1995-05-30
申请人： JATCO CORP , NILES PARTS CO LTD
发明人： ODAJIMA RYOETSU , NAKAZAWA TAKASHI
IPC分类号： B60K20/02 , F16H59/02 , H01H19/56 , H01H21/08 , H01H21/62
摘要： PURPOSE: To provide a shaft joining structure of an inhibitor switch by which the service life of the inhibitor switch is lengthened and reliability is enhanced without impairing sealing performance of a sealing device even if it is exposed to a severe environment. CONSTITUTION: A rotor 13 is rotatably arranged by penetrating through a switch casing. A sealing ring is fitted in sealing ring grooves 13M and 13N, and a switch circuit of an inhibitor switch is sealed. In the rotor 13, the whole is integrally molded by resin, and a key projection 21 formed on an inner peripheral surface meshes with a key groove of a manual shaft. On the back face side of the sealing ring groove 13M, a shaft directional groove 21M is formed lid on a top part of the key projection 21, and the thickness of the key projection 21 is reduced. Since a shrink at resin molding time becomes smaller than when the groove 21M is not formed, circularity of the bottom of the sealing ring groove 13M is secured, and sealing performance by the sealing ring is enhanced.

75. 发明专利

JPH08326780A LUBRICATING DEVICE OF MULTIPLE DISC CLUTCH 失效
公开(公告)号：JPH08326780A
公开(公告)日：1996-12-10
申请号：JP13758195
申请日：1995-06-05
申请人： JATCO CORP
发明人： ISHIMARU KO
IPC分类号： F16D25/12 , F16H57/04
摘要： PURPOSE: To reduce friction by providing a flow control valve reducing the supply quantity of lubricating fluid to a lubricating circuit compaired with at engaging, when engagement of a multiple disc clutch is released. CONSTITUTION: At low speed of vehicle speed, a shift valve 11 applies line pressure P to a low speed frictional engaging element VLC by a spring 11a, a sufficient quantity of lubricating oil PO is supplied to the plate of a low reverse brake LRB from a main lubricating circuit 9 through a low reverse lubricating circuit 9a, and hence there is no possibility of seizure at engagement. At high speed, the shift valve 11 applies line pressure P to a high speed frictional engaging element VHC, changes to the condition of supplying lubricating oil to the low reverse lubricating circuit 9a from the main lubricating circuit 9 through a flow limiting circuit 9b, and hence lubricating oil PO is almost not supplied to the plate of the brake LRB. Because the brake LRB is not fastened at high speed, there is no possibility of seizure. Consequently, friction by lubricating oil can be reduced, and the cost can be reduced.

76. 发明专利

JPH08326575A LOAD DRIVE CONTROL DEVICE FOR MICROCOMPUTER-MOUNTED VEHICLE 失效
公开(公告)号：JPH08326575A
公开(公告)日：1996-12-10
申请号：JP13162395
申请日：1995-05-30
申请人： JATCO CORP
发明人： UEDA YOSHIAKI
IPC分类号： F02D45/00 , B60K11/04 , F01P7/04 , F02D29/04 , F02D41/00 , F02D41/22
摘要： PURPOSE: To achieve fail safe through ensurance of drive of a load during the occurrence of abnormality of a microcomputer, in a load drive control device for a microcomputer-mounted vehicle wherein a load drive need deciding program to decide the need of a load drive is set. CONSTITUTION: A load drive circuit (d) is provided with a load forced drive demanding means (g) to effect forced load drive when a decision command is not outputted from a microcomputer (c) in spite of an engine switch (f) being turned ON.

77. 发明专利

JPH08323516A COLLECT CHUCK STRUCTURE 失效
公开(公告)号：JPH08323516A
公开(公告)日：1996-12-10
申请号：JP14979095
申请日：1995-05-25
申请人： JATCO CORP
发明人： WATANABE MASATOSHI
IPC分类号： B23B31/20
摘要： PURPOSE: To secure a specified press-down force by arranging a plurality of plate springs, which have wood piece members pressed against the inside circumferential surface of a work adhered thereto, in the circumferential direction and making them work holders. CONSTITUTION: An collet chuck A for holding the inside circumference is fixed to the chuck fixing side of a fixing member by its base bracket member 1. A wood piece member 4 is inserted into the inside circumference of a work and the outside diameter D3 of the wood piece member 4 is contracted into the inside diameter of the work by virtue of the elastic deformation of the plate spring 3. The wood piece member 4 is pressed against the inside circumference of the work by the reaction caused by the elastic deformation of the plate spring 3 and the work is held by the inside circumference holding collet chuck A. In this case, the cross section of the plate spring 3 being of a rectangular shape and elastically deformed in the thickness direction (radius direction), the spring constant in such section becomes small and thereby a specified press- down force can be secured by a large deformation.

78. 发明专利

JPH08320060A DIFFERENTIAL DEVICE 失效
公开(公告)号：JPH08320060A
公开(公告)日：1996-12-03
申请号：JP15105795
申请日：1995-05-25
申请人： JATCO CORP
发明人： MOCHIZUKI AKIRA
IPC分类号： F16H48/08 , F16H48/38 , F16H48/42 , F16H57/029 , F16H57/037 , F16H57/038 , F16H57/039 , F16H57/02
摘要： PURPOSE: To provide a differential device in which dust or moisture is not taken into a lip part of an oil seal. CONSTITUTION: A cylindrical surface 12A formed on a torque converter housing 12 and a cylindrical surface 11A formed on a drive shaft 11 are faced to each other in the outward position in the axial direction from an oil seal 21C and overlapped in the axial direction. The oil seal 21C is arranged in such a position as not to be directly seen from the outside through the clearance between the cylindrical surfaces 11A, 12B. Since only the drive shaft 11 can be pulled out in the axial direction by loosening a through bolt 16 without disassembling the parts on the periphery, work efficiency in the assembly is improved, and replacement of the oil seal 21C can be easily performed.

79. 发明专利

JPH08312763A ASSEMBLY STRUCTURE OF SEAL RING 失效
公开(公告)号：JPH08312763A
公开(公告)日：1996-11-26
申请号：JP14546495
申请日：1995-05-18
申请人： AICHI MACHINE IND , JATCO CORP
发明人： IMAO TOSHIO , IKEDA YOICHI
IPC分类号： F16H41/30 , F16D25/063 , F16H57/023 , F16H57/028 , F16H57/029 , F16H57/03 , F16H57/04
摘要： PURPOSE: To reliably prevent a seal ring from being delivered in such a state to be erroneously assembled in an oil feed groove. CONSTITUTION: The oil feed groove 2c of a shaft 2 being a drum support member in the outer periphery of which the feed oil groove 2c communicated with an oil hole 2b is formed in a stage-form groove comprising a central groove part 2cb having depth higher than the height of a seal ring 3; and a side groove part 2ca having depth lower than the heights of seal rings 3 on both sides of the central groove part 2cb, and the diameter of the oil groove 2b is larger than the groove width of the central groove part 2cb.

80. 发明专利

JPH08291322A LASER HARDENING METHOD 失效
公开(公告)号：JPH08291322A
公开(公告)日：1996-11-05
申请号：JP11657795
申请日：1995-04-19
申请人： JATCO CORP
发明人： NAKAYAMA YOSHIMI , SANO MITSURU
IPC分类号： C21D1/09 , C21D9/32
摘要： PURPOSE: To easily harden a metallic material by specifying the quality and surface roughness of the material to be treated, the wave length of laser beam, etc., respectively, at the time of applying laser hardening to the metallic material having ruggedness in its surface. CONSTITUTION: A member 6 made of cast iron, having ruggedness of >=1.2μm surface roughness Ra, is placed on a turntable 2. While turning the turntable 2, the part P, to be hardened, of a spline 6a of the member 6 to be treated is irradiated with a laser beam B, emitted from a laser hardening machine A consisting of a laser generator 4, an optical fiber 5 for laser beam transmission, and a condenser lens unit 3 and reflected by a reflecting means 7, to undergo hardening. At this time, the carbon content and surface roughness Ra of the work to be treated are regulated, respectively, to >=2.1% and >=1.2μm and also the wavelength of the laser beam B is regulated to

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