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1. 发明专利

JPH02199329A POWER TRANSMISSION MECHANISM 失效
公开(公告)号：JPH02199329A
公开(公告)日：1990-08-07
申请号：JP1568589
申请日：1989-01-25
申请人： TOYOTA MOTOR CORP , TOYODA MACHINE WORKS LTD
发明人： INUI MASAKI , TAKUNO HIROSHI , SAKAI TOSHIBUMI
IPC分类号： F16D43/284
摘要： PURPOSE:To lower increase rate of transmission torque in the low differential rotation zone as well as to raise the increase rate of the transmission torque in the high differential rotation zone by providing a spring which applies force in the direction that the first working piston is removed from the second working piston. CONSTITUTION:When relative rotation is generated between both propeller shafts 25 and 26, pressure corresponding to the number of differential rotations is generated in fluid chambers of both pressurizing force generating means 10a and 10b to pressurize both working pistons 13 and 16 in the axial direction. The piston 16 directly pressurizes a frictional clutch 10c and frictionally engages each of clutch plates 19a constituting it with clutch disks 19b through oil for clutch. On the other hand, as the piston 13 is pressurized against a compression spring 19d, it does not aid pressurizing force of the piston 16 till it overcomes the applied force of this spring 19d, but when it overcomes the applied force, it aids pressurizing force of the piston 16 corresponding to the number of differential rotations and further increases frictional engaging force between the plates 19a and the disks 19b.

2. 发明专利

JPH02159426A POWER TRANSMISSION MECHANISM 失效
公开(公告)号：JPH02159426A
公开(公告)日：1990-06-19
申请号：JP31217588
申请日：1988-12-09
申请人： TOYOTA MOTOR CORP , TOYODA MACHINE WORKS LTD
发明人： INUI MASAKI , ASHIDA SATOSHI , YAMAMOTO MASAJI
IPC分类号： F16D43/284
摘要： PURPOSE:To permit two pressing force generating means to exhibit maximum capacity to generate the pressing force by sealing a set volume of a viscous fluid into two fluid chambers, and regulating the volume of the fluid sealed in each fluid chamber at a preset proper volume so that the fluid is moved to the outer peripheral side during operation of the mechanism by centrifugal force, and a fluid in a ring chamber flows into either or both of each fluid chamber. CONSTITUTION:When a relative rotation is produced between both shafts 25, 26, torque is transmitted, and when a torque transmission mechanism is operated, fluids in retention chambers R2, R3 of each fluid chamber are moved to the outer peripheral side by centrifugal force, and at this time, a fluid in a ring chamber R4 flows into retention chambers R2, R3, and the volume of fluid to be sealed is regulated. The volume of fluid to be sealed in each fluid chamber is thus properly regulated by setting the arranging position of both connecting holes 13c, 18b suitably, and each pressing force generating means 10a, 10b can exhibit their capacity of generating the pressing force at maximum. As a result, the performance of the mechanism in power transmission is substantially improved.

3. 发明专利

JPS6430835A DISTRIBUTING DEVICE FOR POWER OF VEHICLE 失效
公开(公告)号：JPS6430835A
公开(公告)日：1989-02-01
申请号：JP18611887
申请日：1987-07-24
申请人： TOYOTA MOTOR CORP
发明人： NAGANO SHUJI , INUI MASAKI
IPC分类号： B60K17/348 , B60K17/34 , B60K17/344 , B60K17/35
摘要： PURPOSE:To prevent the occurrence of a tight corner braking phenomenon by employing a viscous fluid coupling for linking mutually parallel two output shafts. CONSTITUTION:A linking mechanism 20 is provided between a first shaft 12 and a second shaft 13 and a viscous coupling 30 is provided on the first shaft 12. The linking mechanism 20 is formed with a transmitting mechanism consisting of a drive sprocket 21 rotatably installed on the first shaft 12, a driven sprocket 22 rotatably installed on the second shaft 13, and a chain 23 put around both sprockets 21, 22, and a clutch hub 24 and a first coupling sleeve 25 which are installed on the second shaft 13.

4. 发明专利

JPS63120962A POWER TRANSMISSION DEVICE 失效
公开(公告)号：JPS63120962A
公开(公告)日：1988-05-25
申请号：JP26729486
申请日：1986-11-10
申请人： TOYOTA MOTOR CORP
发明人： INUI MASAKI , OKUDA SHOZO , HOSONO MAKI
IPC分类号： B60K17/346 , B60K17/35 , F16H57/028 , F16H57/029 , F16H57/03 , F16H57/04
摘要： PURPOSE:To enable the fitting-in and drawing-out of a shaft member to be smoothly carried out, by arranging a seal piston so that it can slide inside the inserting hole of a shaft member as it is connected or disconnected. CONSTITUTION:A driven-sprocket 19 is rotatably supported by a rear case 15 via a connecting member 190 formed integrally therewith, and bearings 194A end 194B. On the driven-sprocket 19, a silent chain 17 is wound around to transmit rotating power. The connection of the driven-sprocket to a front propeller shaft 10 is carried out by inserting the end part 100 thereof into an inserting hole 192. Prior to this insertion, if a seal piston 198 is drawn back to the position of the broken line, the air in an air space A is compressed by inserting the end part 100, so that the seal piston 198 is slided. Thus, the propeller shaft 10 can be inserted without receiving the reaction of compressed air.

5. 发明专利

JPH0348031A DRIVING FORCE TRANSMISSION DEVICE 失效
公开(公告)号：JPH0348031A
公开(公告)日：1991-03-01
申请号：JP17946589
申请日：1989-07-12
申请人： TOYOTA MOTOR CORP , TOYODA MACHINE WORKS LTD
发明人： INUI MASAKI , ASHIDA SATOSHI , SAKAI TOSHIBUMI
IPC分类号： F16D43/284
摘要： PURPOSE:To prevent the occurrence of relative rotation between a rotor and an operation piston and between the rotor and a retainer by providing a temperature sensing member by which both friction plates are pressed against the rotor so as to be friction-engaged, and also when a prescribed high temperature is reached, by which the friction engagement between both can be released. CONSTITUTION:In a driving force transmission device 10, when a vehicle gets into a traffic snarl, and a high differential rotation is caused between an outer case 1 and an inner shaft 12 so that a friction clutch 10b reaches a prescribed high temperature, a dish spring 18c in a second clutch 18 deforms as shown by an alternate long and two short dashes line to release the pressing against a second friction plate 18b. As a result, the connection between the inner shaft 12 and the rotor 14 by means of the second clutch 18 is released, and the occurrence of relative rotation of the rotor 14 to the operation piston 13 and the retainer 15 can be prevented. Thus, the occurrence of a pressing force through a pressing-force generating means 10a can be regulated, and the high frictional condition of the friction clutch 10b is released for preventing seizure.

6. 发明专利

JPH0348029A DRIVING FORCE TRANSMISSION DEVICE 失效
公开(公告)号：JPH0348029A
公开(公告)日：1991-03-01
申请号：JP17946389
申请日：1989-07-12
申请人： TOYOTA MOTOR CORP , TOYODA MACHINE WORKS LTD
发明人： INUI MASAKI , TANOOKA SHIGEO
IPC分类号： F16D43/284
摘要： PURPOSE:To prevent fine particles of metal from being produced in the inside of a fluid chamber by interposing members having an abrasion resistance and a low coefficient of friction between the side surface of a rotor and that of an operation piston being opposite to the side surface, and between the other side surface of the rotor and the side surface of a retainer, so that a minute clearance can be formed between respective side surfaces. CONSTITUTION:An operation piston 13 and a retainer 15 are respectively separated to each other from a rotor 14 by respective ring-shaped plates 18a, 18b consisting of tetrafluoroethylene. As a result, the operation piston 13 and the retainer 15 are not brought into sliding contact with nor abutted on the rotor 14, so that fine particles of metal can be prevented from being produced in the inside of a fluid chamber. Consequently, variation in torque transmission characteristics attributable to the change in viscosity due to the mixture of fine particles of metal into a viscous fluid, variation in the sliding resistance of the operation piston 13, or the like can be prevented, and also the reduction in the sealing performance of the sealing members interposed between the operation piston 13 and an outer case 11, and between the operation piston 13 and an inner shaft 12 can be prevented.

7. 发明专利

JPS63308222A SYNCHRONIZER 失效
公开(公告)号：JPS63308222A
公开(公告)日：1988-12-15
申请号：JP14195787
申请日：1987-06-05
申请人： TOYOTA MOTOR CORP
发明人： INUI MASAKI , OKUDA SHOZO
IPC分类号： F16H3/12 , F16D23/06
摘要： PURPOSE:To stabilize the restraint force of a synchronizer ring by means of key members, by connecting a gear spline portion to the synchronizer ring by a plurality of key members and a spring, and bending the spring in only a radial direction not to allow its sliding and disengagement in the axial direction in relation to the gear spline portion when shifting is operated. CONSTITUTION:When a sleeve 12 is shifted to the synchronizer ring 13 side in an axial direction, the sleeve 12 pushes the taper cone portion 13a of the synchronizer ring 13 with its taper cone portion 12b to push the ring 13 in the axial direction against the restraining force of each key member 14. During this time, due to the restraining force and the rotational difference between gears 22, 23 and the sleeve 12, the synchronizer ring 13 makes maximum relative rotation to the gear spline portion 16 integrally with each key member 14 to be in the state just before the start of a balk between both. As the result, due to the later shifting of the sleeve in the axial direction, both taper cone portions of the sleeve and the synchronizer ring are engaged with each other to complete synchronism.

8. 发明专利

JPS63152729A SYNCHROMESH DEVICE 失效
公开(公告)号：JPS63152729A
公开(公告)日：1988-06-25
申请号：JP30071886
申请日：1986-12-17
申请人： TOYOTA MOTOR CORP
发明人： INUI MASAKI , OKUDA SHOZO , HOSONO MAKI
IPC分类号： F16H3/12 , F16D23/06
摘要： PURPOSE:To maintain a shift operation with a stable shift load for a long period, by connecting a gear spline part with a synchronizer ring through plural key members and an annular spring and preventing the before said connection from sliding in the axial direction, when the shift operation is performed, further connecting a sleeve, when it is moved, with the synchronizer ring in the axial direction. CONSTITUTION:A gear spline part 16 is connected with a synchronizer ring 13 by plural shifting keys 14 and an annular spring 15. While restriction of the synchronizer ring 13 in its axial direction is performed by engaging the first protrusion part 13b with an engaging recess 14a of the shifting key 14. And when a shift operation is performed, engagement, disengagement and sliding in the axial direction are prevented by flexing the annular spring 15 only in the diametric direction. While the synchronizer ring 13 is connected in the axial direction with a sleeve 12, when it moves, by the action of connecting means 12b, 13a. Then restriction force in the axial direction of the synchronizer ring 13 is stably obtained. Accordingly, a shift load in the time of the shift operation is stably held for a long time.

9. 发明专利

JPS6383462A TRANSFER CASE 失效
公开(公告)号：JPS6383462A
公开(公告)日：1988-04-14
申请号：JP22545586
申请日：1986-09-24
申请人： TOYOTA MOTOR CORP
发明人： INUI MASAKI , OKADA MITSUHIKO , KUBO MASANORI
IPC分类号： F16H57/04
摘要： PURPOSE:To prevent noise due to film vibration by placing opposite the forward ends of ribs projected on the inner surface of a case member to increase the surface rigidity. CONSTITUTION:Ribs 43, 44 and 45, 46 are brought into contact with each other to form partition walls, so that an oil path 47 is formed on the outer peripheral side of a drive sprocket 18. Among the respective opposite surfaces of a front case 13 and a rear case 15, the portions positioned between the sprockets 18, 19 are provided with oil receiving ribs 48, 49 projected thereon, the forward ends of which are brought into contact with each other. Though vibration is caused by operation of a power transmission mechanism 20 in the driving condition, the oil receiving ribs 48, 49 placed opposite each other are formed on the inner surfaces of the front case 13 and the rear case 15 forming a chain room 14 to increase the surface rigidity. Accordingly, film vibration in the chain room 14 can be restrained to effectively prevent generation of noise.

10. 发明专利

JPS6382830A POWER TRANSMISSION DEVICE 失效
公开(公告)号：JPS6382830A
公开(公告)日：1988-04-13
申请号：JP22778886
申请日：1986-09-26
申请人： TOYOTA MOTOR CORP
发明人： INUI MASAKI , OKADA MITSUHIKO , KUBO MASANORI
IPC分类号： F16H37/02 , B60K17/34 , B60K17/346 , B60K17/35
摘要： PURPOSE:To enable a shaft to be coupled to a rotation transmission body at a final stage after the rotation transmission body is assembled to a case, by a method wherein the rotation transmission body alone is rotatably supported to the case. CONSTITUTION:In assembly of a 4-wheel drive transfer 1, a power transmission mechanism 20, e.g. a drive sprocket 18, a driven sprocket 19, is first assembled to a front case 13. Thereafter, a rear case 15 is assembled to the front case 13, and a differential control clutch 5 and a center differential device 6 are assembled in the rear case 15. Finally, an extension housing 16 is assembled by mounting a companion flange 8. In this case, the drive sprocket 19 alone is assembled to the front case 13 and the rear case 15 by means of a pair of bearings 25 and 26 engaged with the outer periphery of the boss part of the driven sprocket.

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