公开(公告)号：US20090060407A1

公开(公告)日：2009-03-05

申请号：US12230513

申请日：2008-08-29

Applicant: Hiroshi Tachi ,  Kazuyuki Kotani ,  Shusuke Nakano

Inventor： Hiroshi Tachi ,  Kazuyuki Kotani ,  Shusuke Nakano

IPC: F16C33/38

CPC classification number: F16C33/3875 ,  F16C19/06 ,  F16C33/3806 ,  F16C33/3887 ,  F16C33/6681

Abstract: A cage of the invention is equipped with a first annular portion and a second annular portion that are disposed respectively at both ends in an axial direction, and a plurality of columns which couples the first annular portion and the second annular portion to each other, and which forms a plurality of pockets in which rolling elements are accommodated. The cage is composed of a first body portion and a second body portion that are arranged in the axial direction of the bearing and that are coupled to each other via interlocking columns provided on each of the first and second body portions. At least one of the first body portion and the second body portion has an outer diameter face having recessed therein an oil groove whose base end leads to a corresponding pocket.

Abstract translation: 本发明的保持架配备有分别设置在轴向两端的第一环形部分和第二环形部分，以及将第一环形部分和第二环形部分彼此连接的多个列，以及 其形成容纳滚动元件的多个口袋。 保持架由沿着轴承的轴向布置的第一主体部分和第二主体部分组成，并且通过设置在第一和第二主体部分中的每一个上的互锁柱彼此联接。 第一主体部分和第二主体部分中的至少一个具有凹入其中的凹槽的外径面，其底端引导到相应的口袋。

公开(公告)号：US07229215B2

公开(公告)日：2007-06-12

申请号：US10681830

申请日：2003-10-09

Applicant: Kazuyuki Kotani

Inventor： Kazuyuki Kotani

IPC: F16C33/46 ,  F16C33/48

CPC classification number: F16C33/543 ,  F16C19/463 ,  F16C19/48 ,  F16C33/48 ,  F16C33/516 ,  F16C43/06 ,  F16C2361/61

Abstract: A double-split cage includes a strip-shaped metallic sheet curved into a semi-cylindrical shape and having several pockets for accommodating a single row of rollers arranged in the circumferential direction. The strip-shaped metallic sheet has two arch portions separately arranged in the axial direction and includes pillar portions arranged at several positions of both arch portions in the circumferential direction. Both arch portions have protrusions protruding from the pillar portions at both end portions in the circumferential direction, and a forward end portion of each protrusion is chamfered at a corner outside in the axial direction. Length of the chamfered portion in the circumferential direction is larger than the protruding length of each protrusion.

Abstract translation: 双分割式保持架包括弯曲成半圆柱形状的带状金属片，并且具有多个用于容纳沿圆周方向布置的单列辊的凹部。 带状金属片具有沿轴向分开布置的两个拱形部分，并且包括在圆周方向上布置在两个拱形部分的几个位置处的柱部分。 两个拱形部分具有在圆周方向上的两个端部处从柱部突出的突起，并且每个突起的前端部在轴向的外侧的角部被倒角。 倒角部的圆周方向的长度大于突出部的突出长度。

公开(公告)号：US6041747A

公开(公告)日：2000-03-28

申请号：US59256

申请日：1998-04-14

Applicant: Kazuyuki Kotani ,  Kazuo Uchida

Inventor： Kazuyuki Kotani ,  Kazuo Uchida

IPC: F01L1/18

CPC classification number: F01L1/185 ,  F01L1/181 ,  F01L1/182 ,  F01L2105/02 ,  Y10T74/20882

Abstract: A rocker arm is tilted by a cam so as to open and close a valve provided on a cylinder head. This arm comprises a pair of opposing wall portions which are made by folding a flat plate so that they oppose substantially in parallel and cylindrical expanding portions which are formed at tilting fulcrum shaft mounting portions located in a center of the opposing wall portions in the length direction thereof, the expanding portions being expanded in the direction of the tilting fulcrum shaft. The cylindrical expanding portions which are thicker than the opposing wall portions receive a load accompanied by the tilting motion so as to decrease bearing stress applied to the opposing wall portions.

公开(公告)号：US20070206894A1

公开(公告)日：2007-09-06

申请号：US11709813

申请日：2007-02-23

Applicant: Kazuyuki Kotani ,  Yoshihito Nakashima

Inventor： Kazuyuki Kotani ,  Yoshihito Nakashima

IPC: F16C33/46

CPC classification number: F16C33/4682 ,  F16C19/30 ,  F16C33/543 ,  F16C2300/02

Abstract: A cage of a thrust roller bearing includes: a pair of crank-shaped bent portions arranged in a circumferential direction of the cage; a pair of inner wall surfaces arranged in a radial direction of the cage; and a pocket for housing a roller defined by the pair of bent portions and the pair of inner wall surfaces and formed by punching the cage. Radially inner one of the inner wall surfaces is formed as a guiding surface for guiding a substantial roller PCD position of an end surface of the roller. Each of the pair of bent portions includes a first extended portion extending in one of cage thickness directions and a second extended portion extending in the other cage thickness direction. A roller retaining pawl for retaining the roller is provided at each of the first and second extended portions so as to protrude into the pockets.

Abstract translation: 推力滚子轴承的保持架包括：沿着保持架的圆周方向布置的一对曲柄形弯曲部分; 沿所述保持架的径向布置的一对内壁面; 以及用于容纳由所述一对弯曲部和所述一对内壁表面限定的滚子的凹部，并且通过冲压所述保持架而形成。 所述内壁面的径向内部形成为用于引导所述辊的端面的大致辊PCD位置的引导面。 一对弯曲部分中的每一个包括沿笼厚方向延伸的第一延伸部分和沿另一个笼厚方向延伸的第二延伸部分。 在第一和第二延伸部分的每一个处设置有用于保持辊的辊保持爪，以便突出到袋中。

公开(公告)号：US20070202986A1

公开(公告)日：2007-08-30

申请号：US11706432

申请日：2007-02-15

Applicant: Kazuyuki Kotani ,  Kazunao Saito ,  Takahiko Sato ,  Hiroshi Sato

Inventor： Kazuyuki Kotani ,  Kazunao Saito ,  Takahiko Sato ,  Hiroshi Sato

IPC: F16H57/08

CPC classification number: F16C33/543 ,  F16C19/466 ,  F16C33/4605 ,  F16C2240/70 ,  F16C2361/61 ,  F16H57/082 ,  F16H2057/085

Abstract: A roller bearing (needle roller bearing) of the cage-and-roller type for a planetary gear mechanism includes a plurality of rollers (needle rollers), and a cage positioning and holding these rollers, and an outside diameter surface of the cage is guided by a bore diameter surface of a planetary gear. An outside diameter dimension of the cage is set to a value which is not smaller than 95% and not larger than 97% of an inner diameter dimension of the planetary gear.

Abstract translation: 用于行星齿轮机构的保持架和滚轮式的滚子轴承（滚针轴承）包括多个滚子（滚针）和定位并保持这些滚子的保持架，并且保持架的外径表面被引导 通过行星齿轮的孔径表面。 保持架的外径尺寸设定为不小于行星齿轮的内径尺寸的95％且不大于97％的值。

公开(公告)号：US5642693A

公开(公告)日：1997-07-01

申请号：US621706

申请日：1996-03-26

Applicant: Kazuyuki Kotani

Inventor： Kazuyuki Kotani

IPC: F01L1/18

CPC classification number: F01L1/18 ,  B21K1/205 ,  F01L1/185 ,  F01L2103/00 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T29/49826 ,  Y10T74/20582 ,  Y10T74/20882

Abstract: The invention relates to a rocker arm including a roller, a pair of side walls for supporting the roller, a pivot engaging portion and a valve engaging portion, in which the configuration of the valve engaging portion, and the relative position of the roller, the pivot engaging portion, and the valve engaging portion are set with high accuracy. In the rocker arm, the roller, while being in contact with a cam, is rotatably provided between a pair of side walls forming a rocker arm body. The rocker arm body is of a two-piece structure including a first piece which includes: the pair of side walls adapted to support the roller; and a valve-engaging portion through which, as viewed longitudinally of the rocker arm body, first end portions of the side walls merge with each other; and a second piece which is a pivot engaging member fixedly secured to the remaining second end portions of the side walls.

Abstract translation: 本发明涉及一种摇臂，包括一个滚子，一对用于支撑该滚轮的侧壁，一个枢转接合部分和一个阀接合部分，其中阀接合部分的结构以及该滚子的相对位置， 枢转接合部分和阀接合部分被高精度地设定。 在摇臂中，滚子在与凸轮接触的同时被可旋转地设置在形成摇臂体的一对侧壁之间。 摇臂主体是两件式结构，包括第一件，其包括：一对侧壁，其适于支撑辊; 以及阀接合部，当从所述摇臂体的纵向观察时，所述侧壁的第一端部彼此合并通过所述阀接合部。 以及第二部件，其是固定地固定到侧壁的剩余的第二端部的枢转接合部件。

公开(公告)号：US07878715B2

公开(公告)日：2011-02-01

申请号：US11709813

申请日：2007-02-23

Applicant: Kazuyuki Kotani ,  Yoshihito Nakashima

Inventor： Kazuyuki Kotani ,  Yoshihito Nakashima

IPC: F16C33/46

CPC classification number: F16C33/4682 ,  F16C19/30 ,  F16C33/543 ,  F16C2300/02

Abstract: A cage of a thrust roller bearing includes: a pair of crank-shaped bent portions arranged in a circumferential direction of the cage; a pair of inner wall surfaces arranged in a radial direction of the cage; and a pocket for housing a roller defined by the pair of bent portions and the pair of inner wall surfaces and formed by punching the cage. Radially inner one of the inner wall surfaces is formed as a guiding surface for guiding a substantial roller PCD position of an end surface of the roller. Each of the pair of bent portions includes a first extended portion extending in one of cage thickness directions and a second extended portion extending in the other cage thickness direction. A roller retaining pawl for retaining the roller is provided at each of the first and second extended portions so as to protrude into the pockets.

Abstract translation: 推力滚子轴承的保持架包括：沿着保持架的圆周方向布置的一对曲柄形弯曲部分; 沿所述保持架的径向布置的一对内壁面; 以及用于容纳由所述一对弯曲部和所述一对内壁表面限定的滚子的凹部，并且通过冲压所述保持架而形成。 所述内壁面的径向内部形成为用于引导所述辊的端面的大致辊PCD位置的引导面。 一对弯曲部分中的每一个包括沿笼厚方向延伸的第一延伸部分和沿另一个笼厚方向延伸的第二延伸部分。 在第一和第二延伸部分的每一个处设置有用于保持辊的辊保持爪，以便突出到袋中。

公开(公告)号：US06516766B2

公开(公告)日：2003-02-11

申请号：US09899918

申请日：2001-07-09

Applicant: Kazuyuki Kotani ,  Kazuo Uchida

Inventor： Kazuyuki Kotani ,  Kazuo Uchida

IPC: F01L118

CPC classification number: F01L1/185 ,  F01L2105/02

Abstract: A rocker arm is tilted by a cam so as to open and close a valve provided on a cylinder head. This arm comprises a pair of opposing wall portions which are made by folding a flat plate so that they oppose substantially in parallel and cylindrical expanding portions which are formed at tilting fulcrum shaft mounting portions located in a center of the opposing wall portions in the length direction thereof, the expanding portions being expanded in the direction of the tilting fulcrum shaft. The cylindrical expanding portions which are thicker than the opposing wall portions receive a load accompanied by the tilting motion so as to decrease bearing stress applied to the opposing wall portions.

公开(公告)号：US06283077B1

公开(公告)日：2001-09-04

申请号：US09506835

申请日：2000-02-18

Applicant: Kazuyuki Kotani ,  Kazuo Uchida

Inventor： Kazuyuki Kotani ,  Kazuo Uchida

IPC: F01L118

CPC classification number: F01L1/185 ,  F01L1/181 ,  F01L1/182 ,  F01L2105/02 ,  Y10T74/20882

Abstract: An rocker arm is tilted by a cam so as to open and close a valve provided on a cylinder head. This arm comprises a pair of opposing wall portions which are made by folding a flat plate so that they oppose substantially in parallel and cylindrical expanding portions which are formed at tilting fulcrum shaft mounting portions located in a center of the opposing wall portions in the length direction thereof, the expanding portions being expanded in the direction of the tilting fulcrum shaft. The cylindrical expanding portions which are thicker than the opposing wall portions receive a load accompanied by the tilting motion so as to decrease bearing stress applied to the opposing wall portions.

Abstract translation: 摇臂由凸轮倾斜，以打开和关闭设置在气缸盖上的阀。 该臂包括一对相对的壁部分，它们通过折叠平板而形成，使得它们基本上与平行的圆柱形膨胀部分相对，并且形成在位于相对壁部分的长度方向的中心的倾斜支点轴安装部分 所述膨胀部在所述倾斜支点轴的方向上膨胀。 比相对的壁部分厚的圆柱形膨胀部分接收伴随着倾斜运动的载荷，以减小施加到相对的壁部分上的承受应力。

公开(公告)号：US5774984A

公开(公告)日：1998-07-07

申请号：US831517

申请日：1997-04-01

Applicant: Kazuyuki Kotani

Inventor： Kazuyuki Kotani

IPC: F01L1/18 ,  B23P15/00

CPC classification number: F01L1/18 ,  B21K1/205 ,  F01L1/185 ,  F01L2103/00 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T29/49826 ,  Y10T74/20582 ,  Y10T74/20882

Abstract: A method of manufacturing a rocker arm includes blanking a piece of plate to obtain a base material for forming a rocker arm body, the base material being substantially U-shaped in plan view and having two protrusions which are substantially in parallel with each other. The base material is bent until the two protrusions are confronted substantially in parallel with each other, to provide a pair of side walls having a coupling portion between the side walls. Next, the coupling portion is curved between the side walls to provide a valve engaging portion, and the free end portions of the side walls are fixedly secured to the side walls of a pivot engaging member which is a plat plate having a semi-spherical portion formed by drawing.

Abstract translation: 制造摇臂的方法包括冲裁一块板以获得用于形成摇臂体的基材，该基材在平面图中基本为U形，并具有彼此大致平行的两个突起。 基材被弯曲直到两个突起彼此大致平行地面对，以提供在侧壁之间具有联接部分的一对侧壁。 接下来，联接部分在侧壁之间弯曲以提供阀接合部分，并且侧壁的自由端部固定地固定到枢转接合构件的侧壁，枢转接合构件是具有半球形部分的平板 由绘图形成。