JPH0593627U - Punch for caulking valve lifter - Google Patents
Punch for caulking valve lifterInfo
- Publication number
- JPH0593627U JPH0593627U JP3404592U JP3404592U JPH0593627U JP H0593627 U JPH0593627 U JP H0593627U JP 3404592 U JP3404592 U JP 3404592U JP 3404592 U JP3404592 U JP 3404592U JP H0593627 U JPH0593627 U JP H0593627U
- Authority
- JP
- Japan
- Prior art keywords
- peripheral wall
- recess
- shim
- inner shim
- portions
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 37
- 238000002788 crimping Methods 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims description 4
- 229910001234 light alloy Inorganic materials 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Forging (AREA)
Abstract
(57)【要約】
【目的】 リフター本体の凹部外周壁のかしめによる内
周肉部の移動量を大きくして、特にインナーシムの自由
回転を確実に規制する。
【構成】 アルミ合金製のリフター本体１２の頂部１３
下面に形成された凹部１８の外周壁１７ａをかしめて、
該凹部１８内に少なくとも一側部が平面状のインナーシ
ム１５を固定する。そして、インナーシム１５の両側部
に平坦な２面部１５ａ，１５ａに対向する凹部外周壁１
７ａをかしめるパンチ１９の第２歯部２２の歯先２２
ａ，２２ａを平坦状に形成した。
(57) [Summary] [Purpose] To increase the amount of movement of the inner peripheral wall by caulking the outer peripheral wall of the recess of the lifter body, and to reliably regulate the free rotation of the inner shim. [Constitution] The top portion 13 of the lifter body 12 made of aluminum alloy
Caulking the outer peripheral wall 17a of the recess 18 formed on the lower surface,
An inner shim 15 having a flat surface at least on one side is fixed in the recess 18. Then, the outer peripheral wall 1 of the concave portion facing the flat two-sided portions 15a, 15a on both sides of the inner shim 15
Tip 22 of second tooth 22 of punch 19 for crimping 7a
a and 22a are formed flat.
Description
【０００１】[0001]
本考案は、自動車用内燃機関の動弁機構に備えられたバルブリフター等のかし め用パンチに関する。 The present invention relates to a punch for crimping a valve lifter or the like provided in a valve mechanism of an internal combustion engine for automobiles.
【０００２】[0002]
周知のように、自動車用内燃機関に備えられたオーバヘッドカム（ＯＨＣ）型 の動弁装置には、駆動カムの回転力を吸気，排気バルブに伝達するバルブリフタ ーが設けられており、斯る従来のバルブリフターとしては、特開昭６３−１４７ ９０７号公報等に記載されているものが知られている。 As is well known, an overhead cam (OHC) type valve operating device provided in an automobile internal combustion engine is provided with a valve lifter for transmitting the rotational force of a drive cam to intake and exhaust valves. The valve lifter described in JP-A-63-147907 is known.
【０００３】 概略を説明すれば、このバルブリフターは、オーバヘッドカム（ＯＨＣ）型動 弁機構に用いられる直動式のものであって、駆動カムと吸排気バルブのバルブス テムとの間に介装された有蓋円筒状のリフター本体と、該リフター本体の円板状 の頂部上面に形成された円形状の嵌着溝内に嵌着されたアウターシムと、前記頂 部の下面中央に形成された凹部内に嵌着されたインナーシムとを備えている。前 記リフター本体は、アルミ合金材で一体に形成され、これによってバルブリフタ ーの軽量化による慣性力の低下を図り、機関の高回転，高出力化の要請を満足し ている。一方、アウターシムとインナーシムとは、夫々表面硬度の高い鋼製で形 成され、これによって、駆動カムのカム面との摺接及びバルブステムの端縁との 圧接時における耐摩耗性等を確保するようになっている。In brief, this valve lifter is a direct-acting type used in an overhead cam (OHC) type valve operating mechanism, and is installed between a drive cam and a valve system of an intake / exhaust valve. And a lid-shaped cylindrical lifter body, an outer shim fitted in a circular fitting groove formed on the upper surface of the disk-shaped top of the lifter body, and a center formed on the lower surface of the top. And an inner shim fitted in the recess. The above-mentioned lifter body is integrally formed of aluminum alloy material, which reduces the inertial force due to the weight reduction of the valve lifter, and satisfies the demands for high engine rotation and high output. On the other hand, the outer shim and the inner shim are made of steel with high surface hardness, respectively, and as a result, wear resistance etc. during sliding contact with the cam surface of the drive cam and pressure contact with the edge of the valve stem are improved. It is supposed to be secured.
【０００４】 また、前記頂部１下面の凹部２は、図９に示すように真円状に形成されている と共に、その外周にＶ字状溝を有するかしめ部が形成されている一方、該かしめ 部にかしめ固定されるインナーシム３は、外周面の対向する両側部に２つの平坦 な２平面部３ａ，３ａが形成されて、略楕円状に形成されている。Further, the concave portion 2 on the lower surface of the top portion 1 is formed in a perfect circular shape as shown in FIG. 9, and a caulking portion having a V-shaped groove is formed on the outer periphery of the concave portion 2. The inner shim 3 which is caulked and fixed to the portion is formed in a substantially elliptical shape by forming two flat two flat surface portions 3a, 3a on opposite sides of the outer peripheral surface.
【０００５】 そして、前記凹部２内にインナーシム３を遊嵌状態に嵌合させた後、図外のか しめ用パンチで凹部２の外周壁１ａ全周をかしめると、図９に示すようにインナ ーシム３の円弧部３ｂ，３ｂでは、内方へ移動した外周壁１ａの内周肉部１ｂが 円弧部３ｂ，３ｂ上端縁に肉盛りされ、これによって、インナーシム３の凹部２ からの抜け出しが防止される。同時に、２平面部３ａ，３ａでは対向する内周肉 部１ｃ，１ｃが２平面部３ａ，３ａに圧接（係止）し、これによってインナーシ ム３の凹部２内での自由な回転が規制されるようになっている。After the inner shim 3 is fitted in the recess 2 in a loosely fitted state, the outer peripheral wall 1a of the recess 2 is caulked by a caulking punch (not shown), as shown in FIG. In the circular arc portions 3b and 3b of the inner shim 3, the inner peripheral wall portion 1b of the outer peripheral wall 1a that has moved inward is built up on the upper end edges of the circular arc portions 3b and 3b, so that the inner shim 3 escapes from the concave portion 2. Is prevented. At the same time, in the two flat surface portions 3a, 3a, the inner peripheral wall portions 1c, 1c facing each other are pressed (locked) to the two flat surface portions 3a, 3a, whereby the free rotation of the inner shim 3 in the recess 2 is restricted. It has become so.
【０００６】[0006]
然し乍ら、前記従来のバルブリフターのかしめ用パンチにあっては、歯先が全 体に鋭角状に形成されているため、外周壁１ａに対して深く切り込めるものの内 周肉部１ｂ、１ｃのインナーシム３方向への移動量が不十分になる。したがって 、図９に示すように凹部２の内周面２ａに接近しているインナーシム３の円弧部 ３ｂ，３ｂに対しては十分に肉盛りされるが、凹部２の内周面２ａから離間した 位置にある２平面部３ａ，３ａに対しては内周肉部１ｃ，１ｃによる十分な圧接 力が得られない。この結果、凹部２内でのインナーシム３の周方向の係止力が低 下し、インナーシム３に大きな回転トルクが作用すると、回転方向にガタが発生 して、凹部２の底面２ｂが経時的に摩耗してしまう惧れがある。 However, in the conventional crimping punch for the valve lifter, since the tooth tips are formed in an acute angle as a whole, the inner peripheral wall portions 1b, 1c can be deeply cut into the inner peripheral wall portions 1b, 1c. The amount of movement in the shim 3 direction is insufficient. Therefore, as shown in FIG. 9, the circular arc portions 3b, 3b of the inner shim 3 that are close to the inner peripheral surface 2a of the recess 2 are sufficiently built up, but are separated from the inner peripheral surface 2a of the recess 2. Sufficient pressure contact force by the inner peripheral wall portions 1c, 1c cannot be obtained with respect to the two flat surface portions 3a, 3a at the above positions. As a result, the circumferential locking force of the inner shim 3 in the recess 2 is reduced, and when a large rotational torque acts on the inner shim 3, backlash occurs in the rotating direction, and the bottom surface 2b of the recess 2 is aged. There is a fear that it will wear out.
【０００７】[0007]
本考案は、前記従来の実情に鑑みて案出されたもので、軽合金材からなるリフ ター本体の頂部下面に形成された凹部の外周壁をかしめて、該凹部内に少なくと も一側部が平面状のインナーシムを固定するバルブリフターのかしめ用パンチに おいて、前記インナーシムの平面部に対向する凹部の外周壁をかしめる歯先を平 坦状に形成したことを特徴としている。 The present invention was devised in view of the above-mentioned conventional circumstances, and the outer peripheral wall of the recess formed on the lower surface of the top of the lifter body made of a light alloy material is caulked so that at least one side of the recess is formed. In a crimping punch of a valve lifter for fixing a flat inner shim, a tooth tip for crimping an outer peripheral wall of a recess facing the flat portion of the inner shim is formed in a flat carrier shape. ..
【０００８】[0008]
前記構成の本考案によれば、インナーシムの平面部側ではパンチの歯先が平坦 状になっているため、凹部外周壁のかしめ時において、切り込み量に対して歯先 の内側面による外周壁内周肉部のインナーシム方向への押出力が強くなる。これ によって、外周壁の内周肉部の移動量が大きくなり、前記平面部に対する圧接力 が強くなる。 According to the present invention having the above-mentioned configuration, since the tooth tip of the punch is flat on the flat surface side of the inner shim, when the outer peripheral wall of the recess is caulked, the outer peripheral wall formed by the inner surface of the tooth tip with respect to the cutting amount is cut. The pushing force in the inner shim direction of the inner peripheral meat part becomes stronger. As a result, the amount of movement of the inner peripheral wall portion of the outer peripheral wall increases, and the pressure contact force against the flat surface portion increases.
【０００９】[0009]
図１は自動車用内燃機関のＯＨＣ型動弁機構に適用される本考案に係るバルブ リフターのかしめ用パンチの一実施例を示している。 FIG. 1 shows an embodiment of a caulking punch of a valve lifter according to the present invention, which is applied to an OHC type valve operating mechanism of an internal combustion engine for automobiles.
【００１０】 まず、バルブリフター１１の構成について説明すれば、このバルブリフター１ １は、図外の駆動カムと吸排気バルブとの間に介装され、シリンダヘッドのガイ ド孔内を摺動する有蓋円筒状のリフター本体１２と、該リフター本体１２の円板 状頂部１３の上面に設けられて、前記駆動カムのカム面に摺接するアウターシム １４と、頂部１３の下面に設けられて、バルブステムの上端縁が圧接するインナ ーシム１５とから構成されている。First, the structure of the valve lifter 11 will be described. The valve lifter 11 is interposed between a drive cam (not shown) and an intake / exhaust valve and slides in a guide hole of a cylinder head. A cylinder-shaped lifter body 12 with a lid, an outer shim 14 provided on the upper surface of a disk-shaped top portion 13 of the lifter body 12 and slidably contacting the cam surface of the drive cam, and a lower surface of the top portion 13 are provided. It is composed of an inner shim 15 with which the upper edge of the stem is pressed.
【００１１】 前記リフター本体１２は、軽量化を図るためにアルミ合金材で一体に形成され 、頂部１３の上面にアウターシム１４が嵌着する大径円形状の嵌合溝１６が形成 されている一方、頂部１３の下面中央に有するボス部１７の中央にインナーシム １５が嵌着する凹部１８が形成されている。この凹部１８は、図６及び図７にも 示すように真円形に形成され、その深さがインナーシム１５の肉厚よりも若干大 きく設定されている。The lifter main body 12 is integrally formed of an aluminum alloy material in order to reduce the weight, and a large-diameter circular fitting groove 16 into which the outer shim 14 is fitted is formed on the upper surface of the top portion 13. On the other hand, a recess 18 into which the inner shim 15 is fitted is formed at the center of a boss portion 17 at the center of the lower surface of the top portion 13. The recess 18 is formed in a perfect circle as shown in FIGS. 6 and 7, and its depth is set to be slightly larger than the thickness of the inner shim 15.
【００１２】 前記アウターシム１４とインナーシム１５は、表面硬度の高いばね鋼材で形成 され、アウターシム１４は、その肉厚が嵌合溝１６の深さよりも大きく設定され ていると共に、外径が嵌合溝１６の内径より若干大きく設定されて圧入固定され るようになっている。The outer shim 14 and the inner shim 15 are formed of a spring steel material having a high surface hardness, and the outer shim 14 has a wall thickness set to be larger than the depth of the fitting groove 16 and has an outer diameter. The inner diameter of the fitting groove 16 is set to be slightly larger than that of the fitting groove 16 so that the fitting groove 16 can be press-fitted and fixed.
【００１３】 一方、インナーシム１５は、図６及び図７に示すように外径が凹部１８の内径 よりも若干小さく設定されていると共に、対向する両側部が接線方向から切欠さ れて平坦な２平面部１５ａ，１５ａが形成されて、該２平面部１５ａ，１５ａと 円弧部１５ｂ，１５ｂによって全体が略楕円形に形成されている。また、このイ ンナーシム１５は、凹部１８内にかしめ用パンチ１９によってかしめ固定される ようになっている。On the other hand, as shown in FIGS. 6 and 7, the inner shim 15 has an outer diameter set to be slightly smaller than the inner diameter of the recess 18, and both opposite sides are flattened by being cut away from the tangential direction. Two flat surface portions 15a, 15a are formed, and the two flat surface portions 15a, 15a and the circular arc portions 15b, 15b form a generally elliptical shape. Further, the inner shim 15 is caulked and fixed in the recess 18 by a caulking punch 19.
【００１４】 具体的に説明すれば、前記かしめ用パンチ１９は、所定の加圧装置によって上 下動し、加圧装置の駆動軸に連結される略楕円状の基部２０と、該基部２０の下 面外周縁に一体に設けられて、ボス部１７の凹部１８外周壁１７ａをかしめる４ つの歯部２１，２１、２２，２２とを備えている。この歯部２１，２１、２２， ２２は、図４及び図５に示すようにインナーシム１５の円弧部１５ｂ，１５ｂに 対応する位置と、２平面部１５ａ，１５ａに対応する位置に夫々配置されるよう になっており、円弧部１５ｂ，１５ｂに対応する第１歯部２１，２１は、図４に 示すように円弧状に形成されている一方、２平面部１５ａ，１５ａに対応する第 ２歯部２２，２２は直線状に形成されている。また、前記第１歯部２１，２１は 、図３に示すように歯先２１ａ，２１ａが鋭角状に形成されていると共に、内側 面２１ｂ（凹部１８側）の傾斜角度θ１が外側面２１ｃの傾斜角度θ２よりも大 きく設定されている。一方、第２歯部２２，２２は、図２に示すように歯先２２ ａ，２２ａが平坦状に形成されていると共に、内側面２２ｂの傾斜角度θ３が外 側面２２ｃの傾斜角度θ４よりも大きく設定されている。尚、第１歯部２１，２ １と第２歯部２２，２２の基部２０からの突出長さＬ１，Ｌ２は同一に設定され ている。More specifically, the caulking punch 19 is moved up and down by a predetermined pressurizing device and is connected to the drive shaft of the pressurizing device. It is provided with four tooth portions 21, 21, 22, 22 which are integrally provided on the outer peripheral edge of the lower surface and crimp the outer peripheral wall 17a of the recess 18 of the boss portion 17. As shown in FIGS. 4 and 5, the tooth portions 21, 21, 22, 22 are arranged at positions corresponding to the circular arc portions 15b, 15b of the inner shim 15 and at positions corresponding to the two plane portions 15a, 15a, respectively. The first tooth portions 21, 21 corresponding to the circular arc portions 15b, 15b are formed in an arc shape as shown in FIG. 4, while the second tooth portions 21a, 15a corresponding to the second flat surface portions 15a, 15a are formed. The tooth portions 22 and 22 are formed in a linear shape. Further, in the first tooth portions 21 and 21, the tooth tips 21a and 21a are formed in an acute angle shape as shown in FIG. 3, and the inclination angle θ1 of the inner surface 21b (concave portion 18 side) is the outer surface 21c. It is set larger than the inclination angle θ2. On the other hand, in the second tooth portions 22 and 22, the tooth tips 22a and 22a are formed flat as shown in FIG. 2, and the inclination angle θ3 of the inner side surface 22b is larger than the inclination angle θ4 of the outer side surface 22c. It is set large. The projection lengths L1 and L2 of the first tooth portions 21 and 21 and the second tooth portions 22 and 22 from the base portion 20 are set to be the same.
【００１５】 以下、インナーシム１５を凹部１８内にかしめ固定する作用について説明する 。即ち、図１に示すように予め頂部１３の下面に凹部１８が形成されたリフター 本体１２をベース上に逆様に固定し、続いて所定の加圧装置によってかしめ用パ ンチ１９を下降させ、各歯部２１，２１、２２，２２を凹部１８の外周壁１７ａ にインナーシム１５の円弧部１５ｂ，１５ｂと２平面部１５ａ，１５ａに対応し て位置決めしながら配置する。その後、加圧装置によりかしめ用パンチ１９を所 定圧力で下降させると、第１歯部２１，２１の歯先２１ａ，２１ａが図１に示す ように外周壁１７ａに垂直方向から切り込んで内側面２１ｂで内周肉部１７ｂを インナーシム１５方向に移動させて該インナーシム１５の円弧部１５ｂ，１５ｂ 端縁に肉盛りする。これによって、インナーシム１５が凹部１８内に強固に固定 され、不用意な抜け出しが防止される。The operation of caulking and fixing the inner shim 15 in the recess 18 will be described below. That is, as shown in FIG. 1, the lifter main body 12 in which the concave portion 18 is previously formed on the lower surface of the top 13 is fixed on the base in a reverse manner, and then the caulking punch 19 is lowered by a predetermined pressurizing device. The teeth 21, 21, 22, 22 are arranged on the outer peripheral wall 17a of the recess 18 while being positioned corresponding to the circular arc portions 15b, 15b of the inner shim 15 and the two plane portions 15a, 15a. After that, when the caulking punch 19 is lowered with a predetermined pressure by a pressurizing device, the tooth tops 21a, 21a of the first tooth portions 21, 21 are vertically cut into the outer peripheral wall 17a as shown in FIG. At 21b, the inner peripheral wall portion 17b is moved in the direction of the inner shim 15 to build up on the edges of the circular arc portions 15b and 15b of the inner shim 15. As a result, the inner shim 15 is firmly fixed in the recess 18 and accidental slip-out is prevented.
【００１６】 同時に、第２歯部２２，２２の平坦な歯先２２ａ，２２ａが外周壁１７ａを垂 直方向から押圧しながら圧縮変形させつつ内周面２２ｂ，２２ｂで内周肉部１７ ｃ，１７ｃをインナーシム１５方向に移動させる。したがって、該内周肉部１７ ｃ，１７ｃのインナーシム１５方向への移動量が従来よりも大きくなり、該内周 肉部１７ｃ，１７ｃが、インナーシム１５の２平面部１５ａ，１５ａに強く圧接 して係止力が十分に大きくなる。このため、インナーシム１５は、大きな回転ト ルクが作用しても自由な回転が確実に規制され、長期に亘り回転方向のガタの発 生が防止される。この結果、凹部底面１８ａの摩耗が確実に防止される。At the same time, the flat tooth tips 22a, 22a of the second tooth portions 22, 22 press the outer peripheral wall 17a from the vertical direction while compressing and deforming the inner peripheral surfaces 22b, 22b. 17c is moved toward the inner shim 15. Therefore, the amount of movement of the inner peripheral wall portions 17c, 17c in the direction of the inner shim 15 becomes larger than in the conventional case, and the inner peripheral wall portions 17c, 17c are strongly pressed against the two flat surface portions 15a, 15a of the inner shim 15. Then, the locking force becomes sufficiently large. Therefore, the inner shim 15 is surely restricted from freely rotating even if a large rotating torque acts, and it is possible to prevent backlash in the rotating direction for a long period of time. As a result, wear of the bottom surface 18a of the recess is reliably prevented.
【００１７】 しかも、各歯部２１，２１、２２，２２の内側面２１ｂ，２１ｂ、２２ｂ，２ ２ｂの傾斜角度θ１、θ３が外側面２１ｃ，２１ｃ、２２ｃ，２２ｃよりも大き くなっているため、内周肉部１７ｂ，１７ｂ、１７ｃ，１７ｃをインナーシム１ ５方向へ大きく移動させることができるため、円弧部１５ｂ，１５ｂへの肉盛り や２平面部１５ａ，１５ａへの圧接力つまりインナーシム１５に対するかしめ力 が一層助長される。Moreover, the inclination angles θ1 and θ3 of the inner side surfaces 21b, 21b, 22b, 22b of the tooth portions 21, 21, 22, 22 are larger than the outer side surfaces 21c, 21c, 22c, 22c. Since the inner peripheral wall portions 17b, 17b, 17c, 17c can be largely moved in the inner shim 15 direction, the padding on the arc portions 15b, 15b and the pressure contact force on the two flat surface portions 15a, 15a, that is, the inner shim. The crimping power for 15 is further promoted.
【００１８】 また、凹部１８を真円形に形成したため、その加工が簡単であり、加工作業能 率の向上とコストの低廉化が図れる。Further, since the concave portion 18 is formed in a perfect circle, its machining is easy, and the working efficiency and the cost can be reduced.
【００１９】 尚、前記第２歯部２２，２２の平坦歯先２２ａ，２２ａの表面積は、実施に応 じて任意に設定できる。The surface areas of the flat tooth tips 22a, 22a of the second tooth portions 22, 22 can be arbitrarily set according to the implementation.
【００２０】[0020]
以上の説明で明らかなように、本考案に係るバルブリフターのかしめ用パンチ によれば、とりわけインナーシムの平面部に対向する凹部外周壁をかしめる歯先 を平坦状に形成したため、前記外周壁のインナーシム方向への移動量が大きくな り、平面部への圧接力つまり係止力が一段と大きくなる。このため、リフター本 体の凹部に対するインナーシムの不用意な抜けを防止できることは勿論のこと、 凹部内でのインナーシムの不用意な自由回転が長期に亘り確実に規制できる。こ の結果、インナーシムの回転による凹部底面の摩耗を防止できる。 As is apparent from the above description, according to the crimping punch of the valve lifter of the present invention, since the tooth tip for crimping the outer peripheral wall of the concave portion facing the flat surface of the inner shim is formed flat, The amount of movement in the direction of the inner shim increases, and the pressing force to the flat surface, that is, the locking force, increases even further. Therefore, it is possible to prevent the inner shim from accidentally coming out of the recess of the lifter body, and it is possible to reliably prevent unintentional free rotation of the inner shim in the recess for a long period of time. As a result, it is possible to prevent abrasion of the bottom surface of the recess due to rotation of the inner shim.
【図１】本考案に係るバルブリフター及びかしめ用パン
チを示す断面図。FIG. 1 is a sectional view showing a valve lifter and a caulking punch according to the present invention.
【図２】本実施例に供されるかしめ用パンチの歯部を示
す拡大断面図。FIG. 2 is an enlarged cross-sectional view showing a tooth portion of a caulking punch used in this embodiment.
【図３】同かしめ用パンチの歯部を示す拡大断面図。FIG. 3 is an enlarged cross-sectional view showing a tooth portion of the crimping punch.
【図４】凹部外周壁をかしめ用パンチでかしめる作用を
示す概略図。FIG. 4 is a schematic view showing an operation of caulking an outer peripheral wall of a recess with a caulking punch.
【図５】図４のＡ−Ａ線断面図。5 is a cross-sectional view taken along the line AA of FIG.
【図６】凹部内にインナーシムを嵌合した状態を示す要
部底面図。FIG. 6 is a bottom view of essential parts showing a state where an inner shim is fitted in the recess.
【図７】図６のＢ−Ｂ線断面図。7 is a sectional view taken along line BB of FIG.
【図８】従来のバルブリフターの凹部にインナーシムを
かしめた状態を示す要部底面図。FIG. 8 is a bottom view of essential parts showing a state where an inner shim is caulked in a recess of a conventional valve lifter.
【図９】図８のＣ−Ｃ線断面図。9 is a sectional view taken along line CC of FIG.
１１…バルブリフター １２…リフター本体 １３…頂部 １５…インナーシム １５ａ…平面部 １７ａ…外周壁 １７ｃ…内周肉部 １８…凹部 １９…かしめ用パンチ ２２…第２歯部 ２２ａ…歯先 11 ... Valve lifter 12 ... Lifter main body 13 ... Top part 15 ... Inner shim 15a ... Plane part 17a ... Outer peripheral wall 17c ... Inner peripheral wall part 18 ... Recessed part 19 ... Caulking punch 22 ... Second tooth part 22a ... Tooth tip
Claims (1)
面に形成された凹部の外周壁をかしめて、該凹部内に少
なくとも一側部が平面状のインナーシムを固定するバル
ブリフターのかしめ用パンチにおいて、前記インナーシ
ムの平面部に対向する凹部の外周壁をかしめる歯先を平
坦状に形成したことを特徴とするバルブリフターのかし
め用パンチ。1. A crimping punch for a valve lifter, wherein an outer peripheral wall of a concave portion formed on a lower surface of a top of a lifter body made of a light alloy material is crimped to fix an inner shim at least one side of which is flat in the concave portion. 3. The punch for caulking a valve lifter according to claim 1, wherein the tooth tip for caulking the outer peripheral wall of the recess facing the flat surface of the inner shim is formed flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3404592U JPH0593627U (en) | 1992-05-22 | 1992-05-22 | Punch for caulking valve lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3404592U JPH0593627U (en) | 1992-05-22 | 1992-05-22 | Punch for caulking valve lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0593627U true JPH0593627U (en) | 1993-12-21 |
Family
ID=12403350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3404592U Pending JPH0593627U (en) | 1992-05-22 | 1992-05-22 | Punch for caulking valve lifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0593627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009123392A (en) * | 2007-11-12 | 2009-06-04 | Denso Corp | Electromagnetic switch |
| JP2015117760A (en) * | 2013-12-18 | 2015-06-25 | 日本精工株式会社 | Universal joint, caulking of universal joint and manufacturing method of universal joint |
-
1992
- 1992-05-22 JP JP3404592U patent/JPH0593627U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009123392A (en) * | 2007-11-12 | 2009-06-04 | Denso Corp | Electromagnetic switch |
| JP2015117760A (en) * | 2013-12-18 | 2015-06-25 | 日本精工株式会社 | Universal joint, caulking of universal joint and manufacturing method of universal joint |
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