公开(公告)号：US08245814B2

公开(公告)日：2012-08-21

申请号：US13000484

申请日：2009-06-30

申请人： Atsushi Yao ,  Satoru Murao ,  Yoichiro Sankai

发明人： Atsushi Yao ,  Satoru Murao ,  Yoichiro Sankai

IPC分类号： B62D7/09 ,  F16H1/12

CPC分类号： B62D5/008 ,  F16H1/321 ,  Y10T74/1966

摘要： A transmission ratio variable mechanism includes an input member and an output member, which are rotatable around a first axis, an inner ring arranged to connect the input and output members to each other so as to be differentially rotatable, an outer ring, and a motor. A second axis serving as a center axis of the inner ring and the outer ring is inclined to the first axis. The transmission ratio variable mechanism includes uneven engagement sections including a projection provided on one of each of end surfaces of the inner ring and a power transmission surface corresponding to the end surface, and a recess. The inner ring includes a first member forming the first end surface and a second member forming the second end surface. The first and second members are formed separately from each other and coupled to each other so as to be movable together.

摘要翻译： 传动比可变机构包括可围绕第一轴线旋转的输入部件和输出部件;内环，其布置成将输入和输出部件彼此连接成能够差分转动;外环和电动机 。 用作内圈和外圈的中心轴线的第二轴线相对于第一轴线倾斜。 传动比可变机构包括不对接部分，其包括设置在内环的每个端面中的一个上的突起和对应于端表面的动力传递表面，以及凹部。 内环包括形成第一端面的第一构件和形成第二端面的第二构件。 第一和第二构件彼此分开地形成并且彼此联接以便可以一起移动。

公开(公告)号：US20110108354A1

公开(公告)日：2011-05-12

申请号：US13000484

申请日：2009-06-30

申请人： Atsushi Yao ,  Satoru Murao ,  Yoichiro Sankai

发明人： Atsushi Yao ,  Satoru Murao ,  Yoichiro Sankai

IPC分类号： B62D5/04 ,  F16H1/12 ,  B62D3/02

CPC分类号： B62D5/008 ,  F16H1/321 ,  Y10T74/1966

摘要： A transmission ratio variable mechanism includes an input member and an output member, which are rotatable around a first axis, an inner ring arranged to connect the input and output members to each other so as to be differentially rotatable, an outer ring, and a motor. A second axis serving as a center axis of the inner ring and the outer ring is inclined to the first axis. The transmission ratio variable mechanism includes uneven engagement sections including a projection provided on one of each of end surfaces of the inner ring and a power transmission surface corresponding to the end surface, and a recess. The inner ring includes a first member forming the first end surface and a second member forming the second end surface. The first and second members are formed separately from each other and coupled to each other so as to be movable together.

摘要翻译： 传动比可变机构包括可围绕第一轴线旋转的输入部件和输出部件;内环，其布置成将输入和输出部件彼此连接成能够差分转动;外环和电动机 。 用作内圈和外圈的中心轴线的第二轴线相对于第一轴线倾斜。 传动比可变机构包括不对接部分，其包括设置在内环的每个端面中的一个上的突起和对应于端表面的动力传递表面，以及凹部。 内环包括形成第一端面的第一构件和形成第二端面的第二构件。 第一和第二构件彼此分开地形成并且彼此联接以便可以一起移动。

公开(公告)号：US5941704A

公开(公告)日：1999-08-24

申请号：US110432

申请日：1998-07-06

申请人： Hirokazu Arai ,  Atsushi Yao

发明人： Hirokazu Arai ,  Atsushi Yao

IPC分类号： A61C1/18 ,  F16C33/41 ,  F16C33/44

CPC分类号： F16C33/416 ,  A61C1/181 ,  F16C33/44 ,  F16C19/54 ,  F16C2300/12 ,  F16C2316/13

摘要： A crown cage is applied to a ball bearing for high-speed rotation for a dental hand piece or the like. The cage has a cylinder formed by injection molding of a thermoplastic resin, and pockets for holding balls that are formed at a predetermined circumferential pitch in the cylinder. A first recess including a gate cutting trace at the time of molding, and second recesses for correcting rotational imbalance of the cylinder caused by the first recess, are formed in the cylinder. The recesses have almost the same shape, and are arranged at a predetermined circumferential pitch.

摘要翻译： 将牙冠保持架应用于用于牙科手柄等的高速旋转的滚珠轴承。 保持架具有通过热塑性树脂的注射成型形成的圆筒和用于保持在气缸中以预定的圆周间距形成的球的凹穴。 在圆筒中形成有在成形时包括门切割迹线的第一凹部和用于校正由第一凹部引起的圆筒的旋转不平衡的第二凹部。 这些凹部具有几乎相同的形状，并且以预定的圆周间距布置。

公开(公告)号：US5733120A

公开(公告)日：1998-03-31

申请号：US561243

申请日：1995-11-21

申请人： Atsushi Yao ,  Masahiro Mukasa

发明人： Atsushi Yao ,  Masahiro Mukasa

IPC分类号： A61C1/05 ,  A61C1/14 ,  F01C13/02

CPC分类号： F01C13/02 ,  A61C1/05 ,  A61C1/14 ,  F16C25/083 ,  F16C19/54 ,  F16C35/077

摘要： There is provided a dental handpiece capable of stably supporting a turbine during high-speed rotation thereof. A projection is provided at each corner portion of a polygonal end surface of a retainer. The projections prevent a conical spring washer from deviating from a centered position relative to the central axis of the turbine. First and second ball bearings for supporting the turbine are axially pressed with a sufficient force which is symmetrical about the central axis of the turbine. A sufficient axial pre-load can be applied to the first and second ball bearings by the conical spring washer, and the conical spring washer is prevented from being displaced.

摘要翻译： 提供了能够在其高速旋转期间稳定地支撑涡轮机的牙齿手柄。 在保持器的多边形端面的每个角部设置突起。 突出部防止锥形弹簧垫圈相对于涡轮机的中心轴偏离中心位置。 用于支撑涡轮机的第一和第二球轴承以足够的力被轴向压紧，所述力围绕涡轮机的中心轴对称。 可以通过锥形弹簧垫圈对第一和第二球轴承施加足够的轴向预载荷，并且防止锥形弹簧垫圈移位。

公开(公告)号：US06794342B2

公开(公告)日：2004-09-21

申请号：US10098810

申请日：2002-03-14

申请人： Hiroshi Komiya ,  Atsushi Yao ,  Nao Ito ,  Youzou Taniguchi

发明人： Hiroshi Komiya ,  Atsushi Yao ,  Nao Ito ,  Youzou Taniguchi

IPC分类号： C10M12302

CPC分类号： C10M169/02 ,  C10M105/36 ,  C10M105/38 ,  C10M107/02 ,  C10M115/08 ,  C10M117/02 ,  C10M117/04 ,  C10M2205/02 ,  C10M2205/0206 ,  C10M2207/1225 ,  C10M2207/1245 ,  C10M2207/125 ,  C10M2207/1265 ,  C10M2207/1285 ,  C10M2207/129 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/246 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/2825 ,  C10M2207/283 ,  C10M2207/2835 ,  C10M2207/2855 ,  C10M2207/286 ,  C10M2207/34 ,  C10M2215/006 ,  C10M2215/026 ,  C10M2215/0813 ,  C10M2215/1013 ,  C10M2215/102 ,  C10M2215/1026 ,  C10M2215/121 ,  C10M2215/2206 ,  C10M2215/2275 ,  C10N2210/01 ,  C10N2240/02

摘要： In a grease composition which essentially comprises a base oil and a thickener, a mixture of a urea compound and lithium soap is blended as the thickener. The content of the urea compound in the thickener is preferably set to 20 to 80 wt %. As the urea compound, an alkyl group- or cyclohexyl group-terminated diurea compound, or, particularly, a diurea compound in which the diisocyanate component is 4,4′-diphenylmethane diisocyanate is preferably used. In a rolling bearing which is lubricated by the grease composition, the acoustic performance is largely improved by a synergistic action of the lithium soap and the urea compound, and simultaneously also the anti-fretting property is enhanced by an action of the urea compound.

摘要翻译： 在基本上包含基础油和增稠剂的润滑脂组合物中，混合尿素化合物和锂皂的混合物作为增稠剂。 增稠剂中脲化合物的含量优选为20〜80重量％。 作为脲化合物，优选使用烷基或环己基封端的二脲化合物，特别是二异氰酸酯成分为4,4'-二苯基甲烷二异氰酸酯的二脲化合物。 在通过润滑脂组合物润滑的滚动轴承中，通过锂皂和尿素化合物的协同作用，大大提高了声学性能，并且通过尿素化合物的作用同时提高了抗微动性。

公开(公告)号：US06715924B2

公开(公告)日：2004-04-06

申请号：US10200335

申请日：2002-07-23

申请人： Shinji Abe ,  Atsushi Yao ,  Tomohiro Haruta

发明人： Shinji Abe ,  Atsushi Yao ,  Tomohiro Haruta

IPC分类号： F16C3358

CPC分类号： F16C19/06 ,  F16C33/585

摘要： Within bounds on both sides of an axial center of each of the raceways of an outer and inner ring, a curvature radius of a raceway portion in a dimensional range covering at least 45% of a raceway width with respect to the axial center thereof is defined to be within the range of between ±1 &mgr;m to/from a mean curvature radius of the raceway in the dimensional range.

摘要翻译： 在外圈和内圈的每个滚道的轴向中心的两侧的边界内，限定了覆盖滚道宽度相对于其轴心的至少45％的尺寸范围内的滚道部分的曲率半径 在尺寸范围内处于±1mum至/距滚道的平均曲率半径之间的范围内。