公开(公告)号：US4796483A

公开(公告)日：1989-01-10

申请号：US95129

申请日：1987-09-11

Applicant: Ramanlal L. Patel ,  Jesse V. Mills

Inventor： Ramanlal L. Patel ,  Jesse V. Mills

IPC: F01L1/18 ,  F01L1/24

CPC classification number: B21K1/205 ,  F01L1/185 ,  F01L1/2405 ,  F01L2103/00 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T74/20582 ,  Y10T74/20882

Abstract: A one-piece, cold-formed rocker arm of the cam follower type is provided. The rocker arm includes a one-piece metal body cold formed from a metal blank and being of U-shaped cross section substantially throughout its length. The body has a bottom wall with upstanding, structurally-integral side walls. An intermediate, convex portion of the bottom wall has a rectangular opening therein extending therethrough. A cam-contacting roller is rotatably mounted on an axle carried by the side walls above the rectangular opening. The roller has a circumferential surface positioned to engage a cam above the rocker arm. The rocker arm body has a downwardly-extending pin with a rounded end to receive a lifter post on which the rocker arm can pivot. The pin is affixed to the bottom wall at one end portion of the rocker arm body. The bottom wall has a shorter convex surface at another end portion with an elongate opening therein to receive an end of a valve stem.

Abstract translation: 提供了一体式的冷弯型凸轮从动摇臂。 摇臂包括由金属坯料形成的整体金属体，其基本上在整个长度上具有U形横截面。 身体有一个具有直立，结构整体的侧壁的底壁。 底壁的中间凸起部分在其中延伸穿过其中的矩形开口。 凸轮接触辊可旋转地安装在由矩形开口上方的侧壁承载的轴上。 辊具有定位成与摇臂上方的凸轮接合的圆周表面。 摇臂体具有向下延伸的销，其具有圆形端部以接收升降器柱，摇臂可在该升降柱上枢转。 销固定在摇臂体的一端部的底壁上。 底壁在另一个端部处具有较短的凸起表面，其中具有细长的开口以容纳阀杆的端部。

公开(公告)号：US4697473A

公开(公告)日：1987-10-06

申请号：US894066

申请日：1986-08-07

Applicant: Ramanlal L. Patel

Inventor： Ramanlal L. Patel

IPC: F01L1/18 ,  F16K31/524 ,  B23P15/00 ,  G05G1/04

CPC classification number: F01L1/185 ,  F01L2105/02 ,  Y10T29/49295 ,  Y10T74/20582 ,  Y10T74/20882

Abstract: A one-piece, cold-formed rocker arm of the cam follower type is provided. The rocker arm includes a one-piece metal body cold-formed from a metal blank and being of inverted U-shaped cross section substantially throughout its length. The body has a top wall with depending, structurally integral side walls. An intermediate, convex portion of the top wall has a rectangular opening therein exceeding therethrough. A cam-contacting roller is rotatably mounted on an axle carried by the side walls below the rectangular opening. The roller has a circumferential surface extending upwardly through and beyond the rectangular opening to engage a cam. The rocker arm body has a rounded recess formed at one end portion to receive a lifter post on which the rocker arm can pivot. The body has an additional recess at another end portion to receive an end of a valve stem.

Abstract translation: 提供了一体式的冷弯型凸轮从动摇臂。 摇臂包括从金属坯料冷成形并且基本上在其整个长度上呈倒U形横截面的单件金属体。 身体有一个顶壁，具有悬垂的，结构上整体的侧壁。 顶壁的中间凸起部分在其中超过其中的矩形开口。 凸轮接触辊可旋转地安装在由矩形开口下方的侧壁承载的轴上。 辊具有向上延伸穿过矩形开口并超过矩形开口的圆周表面以接合凸轮。 摇臂体具有形成在一个端部处的圆形凹部，以容纳摇臂能够枢转的提升柱。 主体在另一端部具有另外的凹部以接收阀杆的端部。

公开(公告)号：US4799464A

公开(公告)日：1989-01-24

申请号：US471756

申请日：1983-03-03

Applicant: Ramanlal L. Patel ,  Meng-Sang Chew ,  Richard A. Marsh ,  Richard C. Rosenberg ,  Henry Thomas, Jr.

Inventor： Ramanlal L. Patel ,  Meng-Sang Chew ,  Richard A. Marsh ,  Richard C. Rosenberg ,  Henry Thomas, Jr.

IPC: F01L1/18 ,  F16C11/04 ,  F16H51/00

CPC classification number: F01L1/183

Abstract: A low-friction, boat-type rocker arm assembly is provided. The boat-type rocker arm is designed to roll on a fulcrum of a supporting pedestal during operation, rather than slipping or sliding thereon. The rocker arm has a recessed intermediate area of a predetermined radius which is greater than the radius of the fulcrum of the pedestal. The rocker has a rectangular opening in the recessed portion with opposite, transverse edges tapering downwardly and inwardly which fit closely with the pedestal to limit travel of the rocker arm relative to the pedestal. The pedestal also has rounded surfaces at those portions positioned near the tapered edges of the rocker arm opening.

Abstract translation: 提供了一种低摩擦的船型摇臂组件。 船型摇臂被设计成在操作期间在支撑基座的支点上滚动，而不是在其上滑动或滑动。 摇臂具有比基座的支点的半径大的预定半径的凹陷中间区域。 摇臂在凹部中具有矩形开口，具有相对的横向边缘，向下和向内逐渐变细，与底座紧密配合，以限制摇臂相对于基座的行进。 在靠近摇臂开口的锥形边缘的那些部分处，基座也具有圆形表面。

公开(公告)号：US4738231A

公开(公告)日：1988-04-19

申请号：US465163

申请日：1983-02-09

Applicant: Ramanlal L. Patel ,  Joseph L. Wherry

Inventor： Ramanlal L. Patel ,  Joseph L. Wherry

IPC: F01L1/18

CPC classification number: F01L1/185

Abstract: A one-piece, cold-formed rocker arm of the cam-follower type is provided. The rocker arm includes a one-piece metal body cold-formed from a metal blank generally in the shape of a rectangular parallelepiped. The rocker arm has a rounded recess formed at one end portion of the metal body to receive a lifter post having an end on which the rocker arm can pivot. An opening flaring upwardly and outwardly from the rounded recess extends through the metal body for lubricating purposes. The metal body also has an additional recess at another end portion to receive an end of a valve stem. An intermediate portion of the body is convex, facing away from the recesses and has a shallow recess in which is received a hardened metal insert to be engaged by a cam. The side of the body opposite the shallow recess has a shallow rectangular projection extending outwardly. The metal body can have gussets extending between the one end portion and the convex portion of the body or the body can have side flanges extending downwardly therefrom, to provide strength and stiffness.

Abstract translation: 提供了一体式的冷弯形凸轮从动摇臂。 摇臂包括由金属坯料冷成形为一体的长方体形状的一体金属体。 摇臂具有形成在金属体的一个端部处的圆形凹槽，以容纳具有摇臂可枢转的端部的升降杆。 从圆形凹槽向上和向外扩张的开口延伸穿过金属体以用于润滑目的。 金属体在另一端部还具有另外的凹部以接收阀杆的端部。 本体的中间部分是凸出的，背向凹槽，并且具有浅凹槽，其中容纳有被凸轮接合的硬化的金属插入件。 与浅凹槽相对的身体的一侧具有向外延伸的浅矩形突出部。 金属体可以具有在主体的一个端部部分和凸起部分之间延伸的角撑板，或者本体可以具有从其向下延伸的侧面凸缘，以提供强度和刚度。

公开(公告)号：US4624223A

公开(公告)日：1986-11-25

申请号：US762335

申请日：1985-08-05

Applicant: Joseph L. Wherry ,  Ramanlal L. Patel

Inventor： Joseph L. Wherry ,  Ramanlal L. Patel

IPC: F01L1/18

CPC classification number: F01L1/185 ,  Y10T29/49295

Abstract: A rocker arm and method of making same are provided. The rocker arm is of the cam-follower type and includes a metal body preferably made from a stamped metal piece and a stamped metal strip. A rounded recess is formed at one end portion of the metal piece and facing away from the metal strip to receive a lifter post having an end on which the rocker arm can pivot. The metal piece also has an additional recess at another end portion to receive an end of a valve stem and the metal strip has an intermediate convex portion facing away from the metal piece. The metal piece has a hole extending therethrough and communicating with the rounded recess, while the strip forms an oil passage communicating with the hole and extending toward the convex portion to supply lubricating fluid between the convex portion and the rounded recess. The convex portion has a shallow recess in which is received a hardened metal insert to be engaged by a cam. A softer metal layer is preferably in the shallow recess below the hardened insert. The insert is preferably affixed in the shallow recess by laser welding the ends of the insert to edges of the shallow recess.

Abstract translation: 提供了一种摇臂及其制造方法。 摇臂是凸轮从动型，并且包括金属体，优选地由冲压的金属片和冲压的金属条制成。 在金属片的一个端部处形成圆形凹槽并且背离金属条以接收具有摇臂可枢转的端部的升降柱。 金属片还在另一端部具有另外的凹部以接收阀杆的端部，并且金属带具有背离金属片的中间凸部。 金属片具有延伸穿过其并与圆形凹部连通的孔，而带形成与孔连通并向凸部延伸的油通道，以在凸部和圆形凹部之间提供润滑流体。 凸部具有浅凹部，其中容纳有被凸轮接合的硬化金属插入件。 较硬的金属层优选在硬化插入物下方的浅凹槽中。 优选地，通过将​​插入件的端部激光焊接到浅凹部的边缘来将插入件固定在浅凹部中。