JPH05272310A - Roller rocker arm and manufacture thereof - Google Patents
Roller rocker arm and manufacture thereofInfo
- Publication number
- JPH05272310A JPH05272310A JP7065292A JP7065292A JPH05272310A JP H05272310 A JPH05272310 A JP H05272310A JP 7065292 A JP7065292 A JP 7065292A JP 7065292 A JP7065292 A JP 7065292A JP H05272310 A JPH05272310 A JP H05272310A
- Authority
- JP
- Japan
- Prior art keywords
- rocker arm
- roller
- contact wall
- valve stem
- roller rocker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Gears, Cams (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ローラロッカーアー
ムとその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller rocker arm and its manufacturing method.
【０００２】[0002]
【従来の技術】エンジンのローラロッカーアームは、自
動車の燃費向上の手段として、近年ローラロッカーアー
ムの採用が増加している。2. Description of the Related Art As a roller rocker arm for an engine, the adoption of the roller rocker arm has been increasing in recent years as a means for improving the fuel efficiency of automobiles.
【０００３】ところで、ローラロッカーアームは、エン
ジンの動弁系に使用されるので、剛性は高く重量は軽い
と共に、エンジン高さを抑えることができるというもの
が要求されている。By the way, since the roller rocker arm is used for a valve operating system of an engine, it is required that the roller rocker arm has a high rigidity and a light weight and that the height of the engine can be suppressed.
【０００４】従来のローラロッカーアームは、アーム素
形材を鍛造もしくはアルミダイキャストで製作し、次に
この素形材を機械加工して精度を確保し、両側に対向す
る側壁にローラ軸の支持孔を設け、支持孔間に架設した
ローラ軸に外輪がローラとなる軸受を取付けて組立てら
れている。In the conventional roller rocker arm, an arm blank is manufactured by forging or aluminum die casting, and then this blank is machined to ensure accuracy, and a roller shaft is supported on side walls facing each other on both sides. It is assembled by forming a hole and mounting a bearing whose outer ring serves as a roller on a roller shaft provided between the support holes.
【０００５】[0005]
【発明が解決しようとする課題】しかし、ローラロッカ
ーアームを鍛造やアルミダイキャストで製作する方法
は、製作コストが高くつくと共に、軽量化の要求を満足
させることができないという問題がある。However, the method of manufacturing the roller rocker arm by forging or aluminum die casting has a problem that the manufacturing cost is high and the requirement for weight reduction cannot be satisfied.
【０００６】そこでこの発明は、ローラロッカーアーム
の製作をプレス加工によって行い、剛性が高く軽量でエ
ンジン高さを抑えることができるローラロッカーアーム
とその製造方法を提供することを課題としている。Therefore, an object of the present invention is to provide a roller rocker arm which is manufactured by press working, has high rigidity and is lightweight, and can suppress the engine height, and a manufacturing method thereof.
【０００７】[0007]
【課題を解決するための手段】上記のように課題を解決
するため、第１の発明は、中央の広幅部でローラ軸を支
持する両側の対向側壁と、両側壁の基端側を接続するピ
ボット当接壁と、両側壁の先端側を接続するバルブステ
ム当接壁とからなるローラロッカーアームを一枚の金属
板から折曲げ形成し、このローラロッカーアームは、両
側壁間における中央部分が上下面で開放状となり、か
つ、両端部の断面形状をピボット当接壁及びバルブステ
ム当接壁の折曲げによって略Ｈ形にした構成を採用した
ものである。In order to solve the problems as described above, the first invention connects the opposite side walls supporting the roller shaft with the central wide portion to the base end sides of the both side walls. A roller rocker arm composed of a pivot abutment wall and a valve stem abutment wall that connects the tip ends of both side walls is formed by bending a single metal plate. The configuration is such that the upper and lower surfaces are open, and the cross-sectional shapes of both ends are substantially H-shaped by bending the pivot contact wall and the valve stem contact wall.
【０００８】同じく第２の発明は、略矩形状となる外形
の金属板に鼓形の抜孔を打ち抜いてブランク材を形成
し、このブランク材をプレス成形により両側の位置で折
曲げて、両側の対向側壁と、両側壁の基端側を接続する
ピボット当接壁と、両側壁の先端側を接続するバルブス
テム当接壁とからなる素形材を形成し、次に、プレス成
形でピボット当接壁及びバルブステム当接壁を折曲げて
両端部の断面形状を略Ｈ形に加工する構成を採用したも
のである。According to a second aspect of the present invention, a blank material is formed by punching a drum-shaped hole in a metal plate having a substantially rectangular outer shape, and the blank material is bent at both sides by press molding to form a blank material on both sides. Form a blank consisting of opposing side walls, a pivot abutment wall that connects the base ends of both side walls, and a valve stem abutment wall that connects the tip ends of both side walls, and then press-mold the pivot member. In this structure, the contact wall and the valve stem contact wall are bent and the cross-sectional shape of both ends is processed into a substantially H shape.
【０００９】[0009]
第１の発明 対向する側壁と、両側壁の基端側を接続するピボット当
接壁及び先端側を接続するバルブステム当接壁とを、一
枚の金属板から折曲げ形成したので、両側壁間の中央部
が上下面で開放状となり、ローラロッカーアームの軽量
化が可能となると共に、ローラロッカーアームの両端は
断面Ｈ形になっているので、荷重方向に対する剛性が上
がる。1st invention Since the side wall which opposes, the pivot contact wall which connects the base end side of both side walls, and the valve stem contact wall which connects the front end side are bent and formed from one metal plate, both side walls Since the central portion between the upper and lower surfaces is open, the weight of the roller rocker arm can be reduced, and both ends of the roller rocker arm are H-shaped in cross section, so that the rigidity in the load direction is increased.
【００１０】第２の発明 鼓形の抜孔を打抜いたブランク材をプレス成形により折
曲げて対向する側壁とピボット当接壁及びバルブステム
当接壁からなるロッカーアーム素形材を形成し、更にこ
の素形材の両端部の断面状を略Ｈ状にプレス成形するよ
うにしたので、ローララッカーアームをプレス加工によ
って製作でき、製作コストの低減が図れると共に、剛性
が高く重量的に軽いローラロッカーアームを効率よく製
作できる。Second invention A blank material punched with a drum-shaped hole is bent by press forming to form a rocker arm blank consisting of opposite side walls, a pivot contact wall and a valve stem contact wall. Since the cross-sectional shape of both ends of this blank is press-formed into a substantially H shape, the roller lacquer arm can be manufactured by press working, which can reduce the manufacturing cost, and is high in rigidity and light in weight. The arm can be manufactured efficiently.
【００１１】[0011]
【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】先ず、図１に示すブランク材１を製作す
る。このブランク材１は、必要な厚みの金属板を用い、
略長方形で長さ方向に沿う両側縁に弧状の膨出部２、２
を設けた外形に打抜き、その中央部で両膨出部２、２間
の位置に、両側が互いにくびれて中央で接近すると共
に、両端に向けて広がり状となる鼓形の抜孔３を打抜い
た構造になっている。First, the blank 1 shown in FIG. 1 is manufactured. This blank material 1 uses a metal plate having a required thickness,
Arc-shaped bulged portions 2 and 2 on both side edges along the length direction that are substantially rectangular
Punched to the outer shape provided with, and at the position between both the bulging portions 2 and 2 at the central portion thereof, both sides are constricted to each other and approach at the center, and the hourglass-shaped punched hole 3 that widens toward both ends is punched. It has a different structure.
【００１３】次に、上記ブランク材１を図１に一点鎖線
で示すように、両側長手方向に沿って抜孔３の両端幅に
一致するよう設定した仮想の折り目線４、４の部分から
両側を、プレス成形により山折り又は谷折りして直角に
折曲げ、図２又は図５に示すローラロッカーアームの素
形材５を形成する。Next, as shown by the alternate long and short dash line in FIG. 1, the blank 1 is cut from both sides of the virtual crease lines 4 and 4 which are set so as to match the widths of both ends of the hole 3 along the longitudinal direction of both sides. Then, the base material 5 of the roller rocker arm shown in FIG. 2 or FIG. 5 is formed by mountain-folding or valley-folding by press molding and bending at a right angle.
【００１４】図２は、ブランク材１の両側を仮想の折り
目線４、４の部分で山折りして形成した素形材５を示
し、両折り目線４、４より外側の部分が両側に対向する
側壁６、６となり、両側壁６、６は基端側の上部がピボ
ット当接壁７で接続され、また、先端側の上部がバルブ
ステム当接壁８で接続された形状になっている。FIG. 2 shows a blank 5 formed by mountain-folding both sides of the blank material 1 at imaginary crease lines 4 and 4, and portions outside the crease lines 4 and 4 face each other on both sides. The side walls 6 and 6 have a shape in which the upper portions on the base end sides of the both side walls 6 and 6 are connected by the pivot contact wall 7 and the upper portions on the distal end side are connected by the valve stem contact wall 8. ..
【００１５】両側壁６、６は抜孔３を形成していた弧状
縁９と膨出部２によって中央が広幅部１０となり、か
つ、両側壁６、６間の中央部は、抜孔３のあった部分が
両側に拡開することにより、上下面で開放状となる。The side walls 6, 6 have a wide portion 10 at the center due to the arcuate edge 9 forming the hole 3 and the bulging portion 2, and the center portion between the side walls 6, 6 has the hole 3. By expanding the parts on both sides, the upper and lower surfaces become open.
【００１６】図５は、ブランク材１の両側を仮想の折り
目線４、４の部分で谷折りして形成した素形材５を示
し、両側に対向する側壁６、６は基端側の下部がピボッ
ト当接壁で接続され、また、先端側の下部がバルブステ
ム当接壁８で接続された形状になっており、両側壁６、
６は中央が広幅部１０となり、かつ、両側壁６、６間の
中央部は上下面で開放状となる。FIG. 5 shows a blank 5 formed by valley-folding both sides of the blank 1 at imaginary fold lines 4 and 4. Side walls 6 facing each other are lower portions on the base side. Are connected by a pivot abutment wall, and the lower part on the tip side is connected by a valve stem abutment wall 8.
6 has a wide portion 10 at the center, and the central portion between the side walls 6 has an open upper and lower surface.
【００１７】次に、図２又は図５で示した素形材５に対
し、図３と図６で示すように、ピボット当接壁７とバル
ブステム当接壁８をプレス成形によって両側壁６、６間
に凹入するよう折曲げ、素形材５における両端部の断面
形状を略Ｈ形にする。Next, as shown in FIGS. 3 and 6, the pivot contact wall 7 and the valve stem contact wall 8 are press-molded on both sides of the blank 5 shown in FIG. 2 or 5 by press molding. , 6 so as to be recessed so that the cross-sectional shape of both ends of the blank 5 is substantially H-shaped.
【００１８】図３と図６に示すように、素形材５には、
両側壁６、６の広幅部１０にローラ軸を支持する孔１
１、１１を両側で同軸心状の配置となるよう突設すると
共に、ピボット当接壁７に、内面側がピボット軸の当接
面となる半球状等の突部１２がプレス成形され、ローラ
ロッカーアーム１３が完成する。As shown in FIG. 3 and FIG.
Holes 1 for supporting the roller shaft on the wide portions 10 of both side walls 6, 6.
1 and 11 are provided so as to be coaxially arranged on both sides, and a projection 12 having a hemispherical shape whose inner surface side is a contact surface of the pivot shaft is press-formed on the pivot contact wall 7 to form a roller rocker. The arm 13 is completed.
【００１９】上記ローラロッカーアーム１３は、対向す
る両側壁６、６の中央部が上下面で開放状となるため、
構成材料の一部が省けた分だけ全体の重量を軽量化で
き、また、両端部を略Ｈ形の断面形状にすることによっ
て、荷重方向に対する剛性が上がることになる。In the roller rocker arm 13, since the central portions of the opposite side walls 6, 6 are open at the upper and lower surfaces,
The total weight can be reduced by omitting a part of the constituent materials, and the rigidity in the load direction can be increased by making the both ends substantially H-shaped in cross section.
【００２０】図７と図８はローラロッカーアーム１３を
エンジンの動弁系に組込み使用した状態を示し、両側壁
６、６の孔１１、１１で支持したローラ軸１４に外輪が
ローラ１５となる軸受１６が取付けられ、ピボット当接
壁７に設けた突部１２の内面がピボット軸１７の上端に
当接し、バルブステム当接壁８の下面がバルブステム１
８に当接すると共に、ローラ１５上に当接するカム１９
の回転により、ローラロッカーアーム１３は、ピボット
軸１７の上端を支点に上下に揺動し、バルブの開閉を行
うことになる。FIGS. 7 and 8 show a state in which the roller rocker arm 13 is used by being incorporated in the valve operating system of the engine, and the outer ring serves as the roller 15 on the roller shaft 14 supported by the holes 11 in the side walls 6, 6. The bearing 16 is attached, the inner surface of the protrusion 12 provided on the pivot abutment wall 7 abuts on the upper end of the pivot shaft 17, and the lower surface of the valve stem abutment wall 8 is the valve stem 1.
The cam 19 that contacts the roller 8 and the roller 15
With the rotation, the roller rocker arm 13 swings up and down with the upper end of the pivot shaft 17 as a fulcrum to open and close the valve.
【００２１】ところで、上記のようなローラロッカーア
ーム１３は、軸受１６の中心Ａとピボット軸１７への取
付部の頂点Ｂ及びバルブステム１８の接触位置Ｃが略直
線上に並ぶようにプレス成形し、これによってローラロ
ッカーアーム１３の上下高さ寸法の低背化を図り、エン
ジンの高さを抑えるようにするのが望ましい。By the way, the roller rocker arm 13 as described above is press-molded so that the center A of the bearing 16, the apex B of the mounting portion to the pivot shaft 17 and the contact position C of the valve stem 18 are arranged in a substantially straight line. Therefore, it is desirable that the height of the roller rocker arm 13 is made lower and the height of the engine is suppressed.
【００２２】具体的には、図７のように、ローラロッカ
ーアーム１３のプレス成形時において、軸受１６の中心
Ａをピボット軸１７への取付部の頂上Ｂを結んだ線分ａ
を引いたとき、バルブステム１８の接触位置Ｃが上記線
部分ａとローラ１５の外径の±３０％以内の平行線ｂ内
にあるよう設定すればよく、このような条件を得るに
は、ローラロッカーアーム１３の両端部を断面Ｈ形に形
成するとき、ピボット当接壁７及びバルブステム当接壁
８のプレス成形による折曲げ量を選択すればよい。Specifically, as shown in FIG. 7, when the roller rocker arm 13 is press-molded, a line segment a connecting the center A of the bearing 16 to the top B of the mounting portion to the pivot shaft 17 is formed.
It is only necessary to set the contact position C of the valve stem 18 within a parallel line b within ± 30% of the outer diameter of the line portion a and the roller 15 when pulling. When forming both end portions of the roller rocker arm 13 in an H-shaped cross section, the bending amount of the pivot contact wall 7 and the valve stem contact wall 8 by press molding may be selected.
【００２３】この発明のローラロッカーアーム１３は上
記のような構成であり、図３と図６に示すように、中央
の広幅部１０でローラ軸１４を支持する両側の対向側壁
６、６と、両側壁６、６の基端側を接続するピボット当
接壁７と、両側壁６、６の先端側を接続するバルブステ
ム当接壁８を、プレス成形によって一枚の金属板から折
曲げ形成し、更に、ピボット当接壁７及びバルブステム
当接壁８をプレス成形によって折曲げ、ローラロッカー
アーム１３の両端を略Ｈ形の断面にしたので、両側壁
６、６間のローラ１５を支持する部分は上下面が開放
し、構成部分の一部を省くことにより、ローラロッカー
アーム１３の軽量化が可能になる。The roller rocker arm 13 of the present invention is constructed as described above, and as shown in FIGS. 3 and 6, opposite side walls 6 and 6 on both sides for supporting the roller shaft 14 at the central wide portion 10. A pivot contact wall 7 connecting the base ends of both side walls 6, 6 and a valve stem contact wall 8 connecting the front ends of both side walls 6, 6 are bent and formed from a single metal plate by press molding. Further, since the pivot contact wall 7 and the valve stem contact wall 8 are bent by press molding and both ends of the roller rocker arm 13 are formed into a substantially H-shaped cross section, the roller 15 between the side walls 6 is supported. The upper and lower surfaces of the portion to be opened are open, and a part of the constituent portion is omitted, so that the weight of the roller rocker arm 13 can be reduced.
【００２４】ちなみに、ローラロッカーアーム１３の製
作に用いる金属板としては、軽量化と強度確保の点か
ら、板厚がローラ１５の外径の１３％〜１９％の延性材
料を使用するのが好ましい。Incidentally, as the metal plate used for manufacturing the roller rocker arm 13, it is preferable to use a ductile material having a plate thickness of 13% to 19% of the outer diameter of the roller 15 from the viewpoint of weight saving and securing of strength. ..
【００２５】また、ローラロッカーアーム１３は、両端
部を断面略Ｈ形に形成したので、荷重方向に対する剛性
が上がり、しかも軸受１６の中心Ａとピボット軸への取
付部の頂点Ｂ及びバルブステム１８の接触位置Ｃを略直
線上に揃えることが可能になり、全体の上下高さ寸法を
低くしてエンジンの高さを抑えることが可能になる。Further, since both ends of the roller rocker arm 13 are formed to have a substantially H-shaped cross section, the rigidity with respect to the load direction is improved, and further, the center A of the bearing 16 and the apex B of the mounting portion to the pivot shaft and the valve stem 18 are provided. It is possible to align the contact positions C of the above-mentioned substantially straight lines, and it is possible to suppress the height of the engine by lowering the overall vertical height dimension.
【００２６】[0026]
【発明の効果】以上のように、この発明によると、プレ
ス成形したローラロッカーアームの両側壁間の中央部を
上下開放状とすると共に、両端部を断面略Ｈ形としたの
で、ローラロッカーアームの軽量化と同時に剛性を高く
することができ、しかもプレス成形の採用により、製造
コストを低減することができる。As described above, according to the present invention, the center portion between the both side walls of the press-molded roller rocker arm is vertically open and both end portions are substantially H-shaped in cross section. The weight can be reduced and the rigidity can be increased at the same time, and the manufacturing cost can be reduced by adopting the press molding.
【００２７】また、ローラ中心と、ピボット当接壁のピ
ボットへの取付部の頂点を結んだ線分を引いたとき、バ
ルブステム接触位置が上記線分とローラ外径の±３０％
以内の平行線内に位置するようにしたので、上記各部分
を略同一線上に揃えることができ、これによってローラ
ロッカーアームの上下高さ寸法を低くしてエンジンの高
さを抑えることができる。Further, when a line segment connecting the roller center and the apex of the mounting portion of the pivot contact wall to the pivot is drawn, the valve stem contact position is ± 30% of the line segment and the roller outer diameter.
Since it is positioned within the parallel line within the above, the above-mentioned respective parts can be aligned substantially on the same line, whereby the vertical height of the roller rocker arm can be reduced and the height of the engine can be suppressed.
【図１】この発明のローラロッカーアームの製作に用い
るブランク材の平面図FIG. 1 is a plan view of a blank material used for manufacturing a roller rocker arm of the present invention.
【図２】同上を山折りした素形材の斜視図FIG. 2 is a perspective view of a raw material obtained by mountain-folding the same as above.
【図３】上記素形材を用いたローラロッカーアームの斜
視図FIG. 3 is a perspective view of a roller rocker arm using the above-mentioned blank material.
【図４】Ａは同上におけるピボット当接壁の部分を示す
断面図、Ｂは同じくバルブステム当接壁の部分を示す断
面図FIG. 4A is a sectional view showing a portion of a pivot contact wall in the same as above, and B is a sectional view showing a portion of a valve stem contact wall of the same.
【図５】図１に示したブランク材を谷折りした素形材の
斜視図FIG. 5 is a perspective view of a blank formed by valley-folding the blank shown in FIG.
【図６】同上を用いたローラロッカーアームの斜視図FIG. 6 is a perspective view of a roller rocker arm using the same as above.
【図７】ローラロッカーアームの使用状態を示す正面図FIG. 7 is a front view showing a usage state of a roller rocker arm.
【図８】同上の平面図FIG. 8 is a plan view of the above.
１ ブランク材 ２ 膨出部 ３ 抜孔 ４ 折り目線 ５ 素形材 ６ 側壁 ７ ピボット当接壁 ８ バルブステム当接壁 １０ 広幅部 １１ 孔 １３ ローラロッカーアーム １４ ローラ軸 １５ ローラ １６ 軸受 １７ ピボット軸 １８ バルブステム DESCRIPTION OF SYMBOLS 1 blank material 2 bulging part 3 extraction hole 4 crease line 5 raw material 6 side wall 7 pivot contact wall 8 valve stem contact wall 10 wide part 11 hole 13 roller rocker arm 14 roller shaft 15 roller 16 bearing 17 pivot shaft 18 valve Stem
Claims (3)
の対向側壁と、両側壁の基端側を接続するピボット当接
壁と、両側壁の先端側を接続するバルブステム当接壁と
からなるローラロッカーアームを一枚の金属板から折曲
げ形成し、このローラロッカーアームは、両側壁間にお
ける中央部分が上下面で開放状となり、かつ、両端部の
断面形状をピボット当接壁及びバルブステム当接壁の折
曲げによって略Ｈ形にしたことを特徴とするローラロッ
カーアーム。1. A pair of opposing side walls supporting a roller shaft at a central wide portion, a pivot abutment wall connecting the base end sides of the both side walls, and a valve stem abutment wall connecting the tip ends of the both side walls. The roller rocker arm consisting of is formed by bending from a single metal plate, and this roller rocker arm has a central portion between both side walls which is open at the upper and lower surfaces, and has a cross-sectional shape of both end portions of the pivot contact wall and A roller rocker arm characterized in that the valve stem abutting wall is bent into a substantially H shape.
の頂上とローラ軸の中心を結んだ線分を引いた時、バル
ブステム当接壁のバルブステム接触位置が上記線分とロ
ーラ外径±３０％以内の平行線内にあることを特徴とす
る請求項１に記載のローラロッカーアーム。2. When a line segment connecting the top of the pivot mounting portion provided on the pivot contact wall and the center of the roller shaft is drawn, the valve stem contact position of the valve stem contact wall is the line segment and the roller outer diameter. The roller rocker arm according to claim 1, wherein the roller rocker arm is in a parallel line within ± 30%.
孔を打ち抜いてブランク材を形成し、このブランク材を
プレス成形により両側の位置で折曲げて、両側の対向側
壁と、両側壁の基端側を接続するピボット当接壁と、両
側壁の先端側を接続するバルブステム当接壁とからなる
素形材を形成し、次に、プレス成形でピボット当接壁及
びバルブステム当接壁を折曲げて両端部の断面形状を略
Ｈ形に加工することを特徴とするローラロッカーアーム
の製造方法。3. A blank material is formed by punching a drum-shaped punched hole in a metal plate having a substantially rectangular outer shape, and the blank material is bent at positions on both sides by press molding, and opposite side walls on both sides and both sides are formed. A blank is formed from a pivot contact wall that connects the base end side of the wall and a valve stem contact wall that connects the tip ends of both side walls, and then press-molds the pivot contact wall and the valve stem. A method for manufacturing a roller rocker arm, characterized in that the contact wall is bent and the cross-sectional shape of both ends is processed into a substantially H shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7065292A JPH05272310A (en) | 1992-03-27 | 1992-03-27 | Roller rocker arm and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7065292A JPH05272310A (en) | 1992-03-27 | 1992-03-27 | Roller rocker arm and manufacture thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002161343A Division JP2003041910A (en) | 2002-06-03 | 2002-06-03 | Roller rocker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05272310A true JPH05272310A (en) | 1993-10-19 |
Family
ID=13437801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7065292A Pending JPH05272310A (en) | 1992-03-27 | 1992-03-27 | Roller rocker arm and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05272310A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5655490A (en) * | 1992-01-07 | 1997-08-12 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rocker arm with roller and a method for manufacturing the same |
| WO2001012957A1 (en) * | 1999-08-18 | 2001-02-22 | Koyo Seiko Co., Ltd. | Rocker arm and method of manufacturing rocker arm body |
| US6672266B2 (en) | 1998-03-12 | 2004-01-06 | Nsk Ltd. | Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof |
| US6729285B2 (en) * | 2002-04-22 | 2004-05-04 | Ina-Schaeffler Kg | Lever-type cam follower made of sheet metal |
| EP1418313A1 (en) * | 2002-11-07 | 2004-05-12 | Koyo Seiko Co., Ltd. | Rocker arm |
| US6978750B2 (en) | 2002-02-01 | 2005-12-27 | Nsk Ltd. | Cam follower provided with rocker arm made of sheet metal |
| WO2007082623A1 (en) * | 2006-01-21 | 2007-07-26 | Schaeffler Kg | Lever-type cam follower |
| WO2007082622A1 (en) * | 2006-01-21 | 2007-07-26 | Schaeffler Kg | Rocker arm consisting of sheet steel |
| DE102006048342A1 (en) * | 2006-10-12 | 2008-04-17 | Schaeffler Kg | cam follower |
| JP2009185661A (en) * | 2008-02-05 | 2009-08-20 | Otics Corp | Rocker arm |
-
1992
- 1992-03-27 JP JP7065292A patent/JPH05272310A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5655490A (en) * | 1992-01-07 | 1997-08-12 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Rocker arm with roller and a method for manufacturing the same |
| US5678305A (en) * | 1992-01-07 | 1997-10-21 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Method for manufacturing a rocker arm with a roller |
| US6672266B2 (en) | 1998-03-12 | 2004-01-06 | Nsk Ltd. | Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof |
| WO2001012957A1 (en) * | 1999-08-18 | 2001-02-22 | Koyo Seiko Co., Ltd. | Rocker arm and method of manufacturing rocker arm body |
| US6978750B2 (en) | 2002-02-01 | 2005-12-27 | Nsk Ltd. | Cam follower provided with rocker arm made of sheet metal |
| US6729285B2 (en) * | 2002-04-22 | 2004-05-04 | Ina-Schaeffler Kg | Lever-type cam follower made of sheet metal |
| EP1418313A1 (en) * | 2002-11-07 | 2004-05-12 | Koyo Seiko Co., Ltd. | Rocker arm |
| US6910452B2 (en) | 2002-11-07 | 2005-06-28 | Koyo Seiko Co., Ltd. | Rocker arm |
| WO2007082623A1 (en) * | 2006-01-21 | 2007-07-26 | Schaeffler Kg | Lever-type cam follower |
| WO2007082622A1 (en) * | 2006-01-21 | 2007-07-26 | Schaeffler Kg | Rocker arm consisting of sheet steel |
| DE102006002996A1 (en) * | 2006-01-21 | 2007-08-02 | Schaeffler Kg | Rocker arms made of sheet steel |
| DE102006002994A1 (en) * | 2006-01-21 | 2007-08-02 | Schaeffler Kg | Lever-like cam follower |
| US7918200B2 (en) | 2006-01-21 | 2011-04-05 | Schaeffler Kg | Sheet steel rocker arm |
| DE102006048342A1 (en) * | 2006-10-12 | 2008-04-17 | Schaeffler Kg | cam follower |
| JP2009185661A (en) * | 2008-02-05 | 2009-08-20 | Otics Corp | Rocker arm |
| US8191523B2 (en) | 2008-02-05 | 2012-06-05 | Otics Corporation | Rocker arm |
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