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1. 发明专利

JPH11218160A ONE-WAY CLUTCH 失效
公开(公告)号：JPH11218160A
公开(公告)日：1999-08-10
申请号：JP2184598
申请日：1998-02-03
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO , SATOU TADAMITSU
IPC分类号： F16D41/06
摘要： PROBLEM TO BE SOLVED: To provide structure efficiently assembled while preventing the slip-off of a roller in a process of assembling the roller to a retainer in a one-way clutch. SOLUTION: In a one-way clutch A switching into a lock state of synchronously rotating two inner and outer annular bodies disposed in a concentric state, and a free state of relatively rotating the annular bodies, circumferentially opposed internal wall surfaces 6a, 6b in each roller storage pocket 6 of a retainer 2 are formed into flat faces parallel to each other along the radial direction of the retainer 2, and a protuberant part 13 impeding the slip-off of the roller 1 is provided on the inner diameter side in one internal wall surface 6a facing the roller 1.

2. 发明专利

JPH11210846A BELT TENSIONER 失效
公开(公告)号：JPH11210846A
公开(公告)日：1999-08-03
申请号：JP2648098
申请日：1998-01-22
申请人： KOYO SEIKO CO
发明人： FUJIWARA HIDEKI , TANAKA YASUTO
IPC分类号： F16H7/12
摘要： PROBLEM TO BE SOLVED: To refine the sliding surface of a cylinder case or a piston of a hydraulic damper in a belt tensioner while a change in dimensions is suppressed so that the coefficient of friction can be reduced, and thereby smooth the sliding surface and improve resistance to seizure and wear resistance. SOLUTION: In a state where the surface oxide is removed, a nitride layer 9 or a nitrosulfurizing layer is formed at least on one sliding surface of a cylinder case and a piston 41 provided in a hydraulic damper 4 of a belt tensioner, and thus the sliding surface is adapted to be refined to a dense, smooth, and hard surface property while thermal strain of a base materia in the process of forming the nitride layer is suppressed. Thus, the coefficient of friction of the sliding surface can be reduced, and thereby the surface polishing process required formerly can be eliminated.

3. 发明专利

JPH11118007A BELT TENSIONER 失效
公开(公告)号：JPH11118007A
公开(公告)日：1999-04-30
申请号：JP27851197
申请日：1997-10-13
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F16H7/12 , F16H7/08
摘要： PROBLEM TO BE SOLVED: To realize a structure for making the outside dimension of an entire body compact with the smallest possible number of parts. SOLUTION: In a belt tensioner A, a rotatable tension pulley 1 can freely swing about a position deviated from the center of its rotation as a supporting point. A tension adjusting means for switching the tension pulley 1 so as to maintain the constant tension of a belt 80 and a damper means 4 for damping vibration or impact transmitted from the belt 80 are provided in parallel along the axial direction of a swinging in the side of the tension pulley 1. Thus, the outside dimension of the tension pulley 1 can be reduced. Further, the tension energiging movable member of the tension adjusting means and the load transmitting movable member 48 of the damper means 4 can respectively abut on a single protruding part 18 provided on the tension pulley 1.

4. 发明专利

JPH1130312A PULLEY UNIT 失效
公开(公告)号：JPH1130312A
公开(公告)日：1999-02-02
申请号：JP18338597
申请日：1997-07-09
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F16H55/36 , F16D41/06
摘要： PROBLEM TO BE SOLVED: To improve the life of a rolling bearing positioned on the free end side of an inner side annular body, a stabilize the action of a one-way clutch, in a pulley unit wherein the rolling bearings are arranged on both sides with the one-way clutch nipped. SOLUTION: In a pulley unit A equipped with: two inner and outer annular bodies 1 and 2 arranged coaxially, a one-way clutch 3 interposed in an annular space between both the annular bodies 1 and 2, and rolling bearings 4 and 5 provided on both the sides of the one-way clutch 3 in the annular space; the one-side rolling bearing 5 is adopted as a roller bearing, and remaining one side rolling bearing is adopted as a ball bearing. When a radial load is biasedly applied to the axial directional one side of the outer side annular body 1, a withstand load property can be improved by providing the rolling bearing 5 on a side applied to a biased load.

5. 发明专利

JPH1122752A ONE-WAY CLUTCH 失效
公开(公告)号：JPH1122752A
公开(公告)日：1999-01-26
申请号：JP17812497
申请日：1997-07-03
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F16D41/06 , F16D41/02
摘要： PROBLEM TO BE SOLVED: To prevent deflection a coil spring, bring a coil spring into an immobile state, and to stabilize operation. SOLUTION: A one-way clutch A switches two inner and outer annular bodies 3 and 4, concentrically disposed, into a lock state, wherein the annular bodies are synchronously rotated, and a free state wherein the annular bodies are caused to effect relative rotation. The one-way clutch comprises a holder 2 to have pocket 6 wherein rollers 1 are peripherally rollablly contained in a plurality of spots on a periphery; and a coil spring 5 contained in a compressed state in the pocket 6 and energizing in a rebounding state the roller 1 to the lock side through a stretch restoration force. A protrusion 8 to receive the inner periphery of the coil spring 5 is formed on the inner peripheral wall of the pocket 6 of the holder 2. This constitution prevents deflection of the coil spring 5 and fixes the coil spring 6 in a home position.

6. 发明专利

JPH10281261A PULLEY 失效
公开(公告)号：JPH10281261A
公开(公告)日：1998-10-23
申请号：JP8350697
申请日：1997-04-02
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F16H55/36 , F16D41/06
摘要： PROBLEM TO BE SOLVED: To suppress the generation of noise due to the fluctuation of rotation of an input shaft, in a pulley incorporating a one-way clutch. SOLUTION: A pulley A comprises a drive annular body 1 fixed on an input shaft B; a driven annular body 2 which is disposed on the outer periphery of the drive annular body 1' and around which a belt C is wound; and a one-way clutch 3 located between the drive annular body 1 and the drive annular body 2. In one-way clutch 3, a torque value per roller 1 to press a roller 13 against the lock side is set to a range of 0.3-12 [N/m] This constitution performs smooth rolling of the roller 13 without jolting even when the input shaft B is rotationally fluctuated when the roller 13 of the one-way clutch 3 is rolled especially from a free position to a lock position.

7. 发明专利

JPH10122316A BELT TENSIONER 失效
公开(公告)号：JPH10122316A
公开(公告)日：1998-05-15
申请号：JP29004196
申请日：1996-10-31
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F02B67/06 , F16H7/08 , F16H7/12
摘要： PROBLEM TO BE SOLVED: To attain compactness in external dimension of a total unit though required performance can be satisfied, in a belt tensioner. SOLUTION: In a belt tensioner A of constitution capable of swiveling a rotatable tension pulley 1 with a position eccentrically placed from its center of rotation serving as a support point, a tension adjusting means 3 swivel operating the tension pulley 1 so as to fixedly hold tension of a belt 80 and a damper means 4 damping vibration and shock transmitted from the belt 80 are individually provided in the sideward of the tension pulley 1. When the tension adjusting means 3 and the damper means 4 are parallelly arranged so as to be adjacent to each other on the same plane, in the sideward of the tension pulley 1, the means can be arranged so as to be received in the external dimension of the tension pulley 1.

8. 发明专利

JPH10122267A ONE-WAY CLUTCH 失效
公开(公告)号：JPH10122267A
公开(公告)日：1998-05-12
申请号：JP27436796
申请日：1996-10-17
申请人： KOYO SEIKO CO
发明人： TANAKA YASUTO
IPC分类号： F16D41/06
摘要： PROBLEM TO BE SOLVED: To aim at the behavioral stabilization of a roller as well as to synchronize the locking and freeing operations of each and every roller, in this one-way clutch. SOLUTION: This is a one-way clutch A to select a state of power transmission or another state of power interception between both inner and outer ring members 1 and 2 to be set up inward and outward in the radial direction, it is provided with a coil spring 5 energizing each of rollers to be set up in each wedged space being installed in several circumferential spots in a clearance between both these inner and outer ring members 1 and 2, to a narrow side in these wedged spaces, and this coil spring 5 is made to come into contact with a one-sided position at an axial central position of the roller 4 and at a more partial side of a driving member 1 (or 2) than a PCD of the roller concerned. With this constitution, resilient energizing force of the coil spring 5 is balanceably impartable to each individual roller 4 in the shape of assisting the rolling operation.

9. 发明专利

JPH1151130A VARIABLE-DIAMETER PULLEY 失效
公开(公告)号：JPH1151130A
公开(公告)日：1999-02-23
申请号：JP20679097
申请日：1997-07-31
申请人： KOYO SEIKO CO
发明人： YASUDA HIROTAKA , TANAKA YASUTO
IPC分类号： F16H55/56 , F16H9/10 , F16H9/12 , F16H9/14
摘要： PROBLEM TO BE SOLVED: To prevent coming-off of a belt by maintaining the central position of the belt fixedly, and prevent deformation of the belt and thereby improve durability of the belt. SOLUTION: A variable-diameter pulley is so composed that a power transmission ring 45 capable of eccentricity is held by a V-groove 44 divided with a variable width between a pair of pulley-bodies 42 and 43, and a belt 2 is wound around its periphery. The both pulley-bodies are so connected by a first connecting mechanism R1 that they can move unitedly and relatively in the axial direction. The both pulley-bodies are connected to a rotary shaft 41 respectively by reverse threads. When one pulley body 42 is energized toward the other pulley body 43 corresponding to the rotational speed by a moving means 50, the both pulley bodies moves with the same stroke. Therefore, durability of the belt can be improved.

10. 发明专利

JPH11280873A Pulley 失效
标题翻译：滑轮
公开(公告)号：JPH11280873A
公开(公告)日：1999-10-15
申请号：JP8099498
申请日：1998-03-27
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： TANAKA YASUTO
IPC分类号： F16H55/36
摘要： PROBLEM TO BE SOLVED: To shorten an axial direction size in a pulley having an oneway clutch and rubber damper.
SOLUTION: In a pulley A having an oneway clutch 3 for hardly transmitting the rotation change of a rotary shaft 10 for an outside ring body 2 in the low rotation area such as an idling time and a rubber damper 6 for attenuating the vibration (shaft resonance) generated from the rotary shaft 10 and restraining the transmission to the outside ring body 2 in a rotation range hisher than 2000 r.p.m., the axial direction size W1 of the pulley A is shortened as much as possible by assembling the rubber damper 6 between one side bearing 5 out of two bearings 4, 5 arranged on both sides of the oneway clutch 3 and an inside ring body 1.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：缩短具有单向离合器和橡胶阻尼器的滑轮中的轴向尺寸。解决方案：在具有在诸如空转时间的低旋转区域中几乎不传递外环体2的旋转轴10的旋转变化的滑动离合器3和用于衰减振动的轴向共振（轴共振），并且在2000rpm以上的旋转范围内将变速器限制在外侧环状体2上，通过将橡胶缓冲器6组装在一侧之间尽可能地缩短带轮A的轴向尺寸W1 布置在单向离合器3的两侧的两个轴承4,5中的轴承5和内侧环体1。

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