公开(公告)号：US07673605B2

公开(公告)日：2010-03-09

申请号：US11700110

申请日：2007-01-31

Applicant: Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

Inventor： Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

IPC: F01L1/18

CPC classification number: F01L1/185 ,  B21K1/205 ,  F01L1/181 ,  Y10T29/49295 ,  Y10T74/20882

Abstract: A rocker arm that is rockably attached to a cylinder head actuates a valve by a guide groove that is formed at an end thereof engaging with an upper end of a valve stem, and a roller that is mounted in a roller housing portion of the arm main unit contacting against a cam and rocking. The guide groove is formed by press working ends of the arm main unit in the thickness direction of the plate material to form a pair of walls, and thereafter applying sandwiching pressure in the lateral direction to the walls to increase the height thereof.

Abstract translation: 可摇动地连接到气缸盖的摇臂通过形成在其与阀杆的上端接合的端部处的引导槽致动阀，以及安装在臂主体的辊收纳部分中的辊 单元与凸轮接触并摇摆。 引导槽由板主体的压板加工端沿板材的厚度方向形成，形成一对壁，然后向侧壁施加横向夹持力以增加其高度。

公开(公告)号：US08037601B2

公开(公告)日：2011-10-18

申请号：US11990784

申请日：2006-08-01

Applicant: Yoshio Kawatake

Inventor： Yoshio Kawatake

IPC: B21K1/20

CPC classification number: B21K1/205 ,  B21J5/06 ,  B21K23/00 ,  B23P15/00 ,  F01L1/18 ,  F01L2103/00 ,  Y10T29/49295 ,  Y10T29/53835 ,  Y10T29/5393 ,  Y10T29/53996

Abstract: The present invention provides a rocker arm manufacturing method capable of stably forming valve stem guide walls. In the method according to the present invention, an intermediate product 13 having both side walls 20 extended in a predetermined direction and arranged in parallel with each other and a one end side connection wall 30 connecting lower ends of both the side walls 20 at a longitudinal one end of the product is obtained. Next, a first pressing punch 70 is pressed against the outer surface portions of both the side walls 20 from the outside thereof to cause downward plastic flows of regions of the outer surface portions of both the side walls positioned below the cutout portions 31 to thereby form raising walls 32 in a downwardly protruded manner at both sides of the one end side connection wall 30. Thereafter, valve stem guide walls 35 are formed by pressing second pressing punches 80 against both the raising walls 32 of the one end side connection wall 30.

Abstract translation: 本发明提供一种能够稳定地形成阀杆引导壁的摇臂制造方法。 在根据本发明的方法中，具有两个侧壁20在预定方向上延伸并且彼此平行布置的中间产品13和一个侧壁连接壁30，其连接在两个侧壁20的纵向 获得产品的一端。 接下来，第一按压冲头70从其外侧压靠在两个侧壁20的外表面部分上，以使位于切口部分31下方的两个侧壁的外表面部分的区域的向下塑性流动形成 在一端侧连接壁30的两侧以向下突出的方式提升壁32.此后，通过将第二按压冲头80压靠在一端侧连接壁30的两个升高壁32上而形成阀杆引导壁35。

公开(公告)号：US07631425B2

公开(公告)日：2009-12-15

申请号：US11300654

申请日：2005-12-15

Applicant: Michiyuki Kamiji ,  Yoshio Kawatake

Inventor： Michiyuki Kamiji ,  Yoshio Kawatake

IPC: B21K1/12

CPC classification number: B21K1/205 ,  F01L1/185 ,  F01L1/2405 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T29/49995 ,  Y10T29/49996

Abstract: A method for manufacturing according to the present invention includes a step of obtaining a bent workpiece 13 with prepared apertures 21 and 21, wherein the bent work piece 13 includes a pair of side walls 20 and 20 disposed in parallel with each other and connecting walls 30 and 40 for connecting the side walls 20 and 20, the pair of side walls 20 an d20 each having a prepared aperture 21, and a step of forming a roller supporting shaft fixing aperture 25 by inserting a sizing punch 60 into the prepared aperture 21, wherein the sizing punch 60 has a tapered push enlarging portion 61 at a tip end portion, a basal end side of the push enlarging portion being larger than the prepared aperture 21 in diameter, and a tip end side of the push enlarging portion 61 being smaller than the prepared aperture 21 in diameter, whereby the push enlarging portion 61 causes plastic flow of an inner peripheral portion of the prepared aperture to finish the inner peripheral surface of the prepared aperture to thereby obtain a roller supporting shaft fixing aperture 25. By this structure, sufficient shaft holding ability can be given to the roller supporting shaft fixing aperture, and a rocker arm can be manufactured at low costs.

Abstract translation: 根据本发明的制造方法包括获得具有预定孔21和21的弯曲工件13的步骤，其中弯曲工件13包括彼此平行设置的一对侧壁20和20以及连接壁30 和40用于连接侧壁20和20，一对侧壁20和每个具有预备孔21的d20，以及通过将精整冲头60插入到所制备的孔21中而形成辊支撑轴固定孔25的步骤， 其中定径冲头60在前端部具有锥形推动扩大部分61，推动扩大部分的基端侧比制备的孔21的直径大，推动扩大部分61的前端侧较小 比制备的孔21直径大，由此推动扩大部分61使制备的孔的内周部分的塑性流动完成所制备的apert的内周面 从而获得辊支撑轴固定孔25.通过这种结构，可以向辊支撑轴固定孔提供足够的轴保持能力，并且可以以低成本制造摇臂。

公开(公告)号：US20090229124A1

公开(公告)日：2009-09-17

申请号：US11990784

申请日：2006-08-01

Applicant: Yoshio Kawatake

Inventor： Yoshio Kawatake

IPC: B21D53/84

CPC classification number: B21K1/205 ,  B21J5/06 ,  B21K23/00 ,  B23P15/00 ,  F01L1/18 ,  F01L2103/00 ,  Y10T29/49295 ,  Y10T29/53835 ,  Y10T29/5393 ,  Y10T29/53996

Abstract: The present invention provides a rocker arm manufacturing method capable of stably forming valve stem guide walls. In the method according to the present invention, an intermediate product 13 having both side walls 20 extended in a predetermined direction and arranged in parallel with each other and a one end side connection wall 30 connecting lower ends of both the side walls 20 at a longitudinal one end of the product is obtained. Next, a first pressing punch 70 is pressed against the outer surface portions of both the side walls 20 from the outside thereof to cause downward plastic flows of regions of the outer surface portions of both the side walls positioned below the cutout portions 31 to thereby form raising walls 32 in a downwardly protruded manner at both sides of the one end side connection wall 30. Thereafter, valve stem guide walls 35 are formed by pressing second pressing punches 80 against both the raising walls 32 of the one end side connection wall 30.

Abstract translation: 本发明提供一种能够稳定地形成阀杆引导壁的摇臂制造方法。 在根据本发明的方法中，具有两个侧壁20在预定方向上延伸并且彼此平行布置的中间产品13和一个侧壁连接壁30，其连接在两个侧壁20的纵向 获得产品的一端。 接下来，第一按压冲头70从其外侧压靠在两个侧壁20的外表面部分上，以使位于切口部分31下方的两个侧壁的外表面部分的区域的向下塑性流动形成 在一端侧连接壁30的两侧以向下突出的方式提升壁32.此后，通过将第二按压冲头80压靠在一端侧连接壁30的两个升高壁32上而形成阀杆引导壁35。

公开(公告)号：US20070175428A1

公开(公告)日：2007-08-02

申请号：US11700110

申请日：2007-01-31

Applicant: Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

Inventor： Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

IPC: F01L1/02 ,  F01L1/18

CPC classification number: F01L1/185 ,  B21K1/205 ,  F01L1/181 ,  Y10T29/49295 ,  Y10T74/20882

Abstract: A rocker arm 6 that is rockably attached to a cylinder head 1 actuates a valve 4 by means of a guide groove 73b that is formed at an end thereof engaging with an upper end of a valve stem 41, and a roller 8 that is mounted in a roller housing portion 72 of the arm main unit 7 contacting against a cam 31 and rocking. The guide groove 73b is formed by press working ends of the arm main unit 7 in the thickness direction of the plate material to form a pair of walls 73d, and thereafter applying sandwiching pressure in the lateral direction to the walls 73d to increase the height thereof.

Abstract translation: 可摇动地附接到气缸盖1的摇臂6通过形成在其与阀杆41的上端接合的端部处的引导槽73b来驱动阀4，并且安装有辊8 在臂主体单元7的与凸轮31接触并摆动的滚筒收纳部分72中。 引导槽73b通过臂主体7的板材的厚度方向的冲压加工端形成，形成一对壁73d，然后向侧壁73d施加横向夹持压力以增加 其高度。

公开(公告)号：US20060143912A1

公开(公告)日：2006-07-06

申请号：US11300654

申请日：2005-12-15

Applicant: Michiyuki Kamiji ,  Yoshio Kawatake

Inventor： Michiyuki Kamiji ,  Yoshio Kawatake

IPC: B21D53/84

CPC classification number: B21K1/205 ,  F01L1/185 ,  F01L1/2405 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T29/49995 ,  Y10T29/49996

Abstract: A method for manufacturing according to the present invention includes a step of obtaining a bent workpiece 13 with prepared apertures 21 and 21, wherein the bent work piece 13 includes a pair of side walls 20 and 20 disposed in parallel with each other and connecting walls 30 and 40 for connecting the side walls 20 and 20, the pair of side walls 20 an d20 each having a prepared aperture 21, and a step of forming a roller supporting shaft fixing aperture 25 by inserting a sizing punch 60 into the prepared aperture 21, wherein the sizing punch 60 has a tapered push enlarging portion 61 at a tip end portion, a basal end side of the push enlarging portion being larger than the prepared aperture 21 in diameter, and a tip end side of the push enlarging portion 61 being smaller than the prepared aperture 21 in diameter, whereby the push enlarging portion 61 causes plastic flow of an inner peripheral portion of the prepared aperture to finish the inner peripheral surface of the prepared aperture to thereby obtain a roller supporting shaft fixing aperture 25. By this structure, sufficient shaft holding ability can be given to the roller supporting shaft fixing aperture, and a rocker arm can be manufactured at low costs.

Abstract translation: 根据本发明的制造方法包括获得具有预定孔21和21的弯曲工件13的步骤，其中弯曲工件13包括彼此平行设置的一对侧壁20和20以及连接壁30 和40用于连接侧壁20和20，一对侧壁20和d 20各自具有准备的孔21，以及通过将精整冲头60插入预备的孔21中而形成辊支撑轴固定孔25的步骤 其中，定径冲头60在前端部具有锥形推动扩大部61，推动扩大部的基端侧的直径比准备好的孔21大，推动扩大部61的前端侧为 小于制备的孔21的直径，由此推动扩大部分61使得制备的孔的内周部分的塑性流动完成所制备的孔的内周表面 从而获得辊支撑轴固定孔25。 通过这种结构，可以向辊支撑轴固定孔提供足够的轴保持能力，并且可以以低成本制造摇臂。