JPS6242169Y2 - - Google Patents
Info
- Publication number
- JPS6242169Y2 JPS6242169Y2 JP1981012509U JP1250981U JPS6242169Y2 JP S6242169 Y2 JPS6242169 Y2 JP S6242169Y2 JP 1981012509 U JP1981012509 U JP 1981012509U JP 1250981 U JP1250981 U JP 1250981U JP S6242169 Y2 JPS6242169 Y2 JP S6242169Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- hole
- rod main
- small end
- parts
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010411 cooking Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】
本考案は、鋼板等の板状金属を打抜き、成形
し、溶接し、そして接合することにより構成され
る車輛用板金製コンロツドに関するものである。[Detailed Description of the Invention] The present invention relates to a sheet metal connecting rod for a vehicle that is constructed by punching, forming, welding, and joining sheet metal such as steel plate.
従来、車輛用コンロツドは鍛造により中央凹状
の中実体で構成されるのが通常である。そして、
この車輛用コンロツドは本体部とキヤツプ部との
２分割構造になつており、稀には、所謂、組立式
と称して、鍛造されたコンロツド本体部の大・小
端部に穴切削加工を施して一体化し、これを分割
クランクピン部に組付ける構造のものも存在す
る。この組立式のコンロツドは特に、軽自動車や
小型車用に使用されているが、このように、コン
ロツドとクランクシヤフトとのいずれかを分割式
としても、どちらか一方の部品の重量を増加させ
ざるを得ないものであるから、結果的には、コン
ロツドの軽量化対策としては十分な効果が得られ
ていないのが実情である。すなわち、上記した従
来の組立式のコンロツドでは、コンロツドを一体
化することによりコンロツド自体は軽量化される
のであるが、クランク部は分割部強化のために重
量増となり、また、これとは逆に一体化クランク
と分割型コンロツドとを組合せるのにあつては、
コンロツドがボルト部強化のために重量増となる
という矛盾を生ずるのである。 Conventionally, convection rods for vehicles have typically been formed by forging into a solid body with a concave center. and,
This automotive cooking stove has a two-part structure, the main body and the cap.In rare cases, it is so-called an assembled type, in which holes are cut at the large and small ends of the forged cooking stove body. There is also a structure in which the parts are integrated and assembled into a split crank pin part. This type of assembly-type connecting rod is especially used for light vehicles and small cars, but even if either the connecting rod or the crankshaft is separated, the weight of one of the parts will inevitably increase. As a result, the actual situation is that sufficient effects have not been achieved as a measure to reduce the weight of cooking stoves. In other words, in the conventional prefabricated conrod mentioned above, by integrating the conrod itself, the conrod itself becomes lighter; however, the weight of the crank part increases due to the reinforcement of the divided parts; When combining an integrated crank and a split connecting rod,
This creates a contradiction in that the weight of the connecting rod increases due to the reinforcement of the bolt section.
本考案の目的は、軽量でかつ高強度を有し、量
産性に優れると共に振動特性に優れ、更に安価で
あると共に油路の加工が容易な車輛用板金製コン
ロツドを提供することにある。 The object of the present invention is to provide a sheet metal connecting rod for vehicles that is lightweight, has high strength, is suitable for mass production, has excellent vibration characteristics, is inexpensive, and has easy processing of oil passages.
小端部と大端部とを有し、該小端部と大端部に
は、外形穴抜きが施こされ、これらの孔の周部は
バーリング加工が施こされて筒状のバーリング加
工部が形成された。 It has a small end and a large end, external holes are bored in the small end and large end, and the periphery of these holes is burred to form a cylindrical burring. A division was formed.
ピストンピン挿通用の孔とクランクシヤフトピ
ン挿通用の孔とをそれぞれ有する左、右コンロツ
ド本体部をプレス加工により成形し、該左、右コ
ンロツド本体部を溶接により一体化すると共に、
前記小端部と大端部の間に強化用の絞り出し凸部
を設け前記左、右コンロツド本体部の剛性を強化
する構成とし、前記ピストン挿通用の孔と前記ク
ランクシヤフトピン挿通用の孔とには、それぞれ
その周面の中央部に環状突部を形成したベアリン
グパイプ材を、前記環状突起が前記バーリング加
工部の間に挾持するように嵌合装着したことを特
徴とする車輛用板金製コンロツドにある。 The left and right connecting rod main bodies each having a hole for inserting a piston pin and a hole for inserting a crankshaft pin are formed by press working, and the left and right connecting rod main bodies are integrated by welding,
A reinforcing convex portion is provided between the small end and the large end to strengthen the rigidity of the left and right connecting rod main bodies, and the piston insertion hole and the crankshaft pin insertion hole are formed. A sheet metal sheet for a vehicle, characterized in that a bearing pipe material having an annular protrusion formed in the center of the circumferential surface thereof is fitted so that the annular protrusion is sandwiched between the burring parts. It's on the stove.
以下、本考案の実施例を図に基づいて説明す
る。 Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図ないし第３図は本考案の第一実施例を示
し、車輛用板金製コンロツド１は左コンロツド本
体部２と右コンロツド本体部３とを主要なる構成
要素としている。左、右コンロツド本体部２，３
はそれぞれ鋼板等の金属板体をプレス加工して形
成され、小端部２ａ，３ａと大端部２ｂ，３ｂと
を有している。左コンロツド本体部２の小端部２
ａと大端部２ｂとには、外形穴抜きが施こされて
ピストンピン挿通用の孔２ｃとクランクシヤフト
ピン挿通用の孔２ｄとが形成され、これらの孔２
ｃ，２ｄの周部はバーリング加工が施こされて筒
状のバーリング加工部２c′，２d′が形成されてい
る。 1 to 3 show a first embodiment of the present invention, in which a sheet metal connecting rod 1 for a vehicle has a left connecting rod main body 2 and a right connecting rod main body 3 as main components. Left and right conrod main parts 2 and 3
are formed by pressing a metal plate such as a steel plate, and have small end portions 2a, 3a and large end portions 2b, 3b. Small end 2 of left conrod main body 2
A and the large end 2b are punched to form a hole 2c for inserting the piston pin and a hole 2d for inserting the crankshaft pin.
The peripheral portions c and 2d are burred to form cylindrical burred portions 2c' and 2d'.
一方、左コンロツド本体部２の周部には絞り出
しフランジ部２ｅが全体を平面的に囲撓するよう
にして形成され、また、絞り出しフランジ部２ｅ
で囲撓され、かつ、バーリング加工部２c′，２
d′で狭まれる部位には強化用の絞り出し凸部２ｆ
が形成されている。 On the other hand, a squeezed flange portion 2e is formed on the periphery of the left connecting rod main body portion 2 so as to flex the whole in a plane, and the squeezed flange portion 2e
and is surrounded by burring processing parts 2c', 2
There is a squeezed convex part 2f for reinforcement in the area narrowed by d′.
is formed.
右コンロツド本体部３にも、左コンロツド本体
部２と同様の加工が施され、第２図ａ中、３ｃ，
３ｄはそれぞれピストンピン挿通用の孔、クラン
クシヤフトピン挿通用の孔であり、３c′，３d′は
バーリング加工部を示す。また、３ｅは絞り出し
フランジ部を、３ｆは強化用の絞り出し凸部をそ
れぞれ示す。 The right connecting rod main body 3 is also processed in the same way as the left connecting rod main body 2, and is shown in Fig. 2a, 3c,
3d is a hole for inserting a piston pin and a hole for inserting a crankshaft pin, respectively, and 3c' and 3d' indicate burring parts. Further, 3e indicates a squeezed flange portion, and 3f indicates a squeezed convex portion for reinforcement.
そして、４，５はそれぞれベアリングパイプ材
を示し、ベアリングパイプ材４は孔２ｃ，３ｃと
嵌合して図示しないピストンピンを回転自在に支
持し、また、ベアリングパイプ材５は孔２ｄ，３
ｄと嵌合して図示しないクランクシヤフトピンを
回転自在に支持することとなる。ここで、ベアリ
ングパイプ材４，５の周面の中央部には環状突部
４ａ，５ａが形成されており、ベアリングパイプ
材４，５はその環状突部４ａ，５ａをバーリング
加工部２c′，３c′及び２d′，３d′の間に挾持する
ようにして孔２ｃ，３ｃ及び２ｄ，３ｄにそれぞ
れ嵌合することとなる（第２図ａ，ｂ参照）。こ
のような状態において、Ａ部をスポツト溶接する
と共に、Ｂ部を部分周部溶接し、更にＣ部を部分
溶接する。これにより、左、右コンロツド本体部
２，３とベアリングパイプ材４，５とは互いに一
体化される。 Reference numerals 4 and 5 indicate bearing pipe materials, respectively. The bearing pipe material 4 is fitted into the holes 2c and 3c to rotatably support a piston pin (not shown), and the bearing pipe material 5 is fitted into the holes 2d and 3c.
d to rotatably support a crankshaft pin (not shown). Here, annular protrusions 4a, 5a are formed in the center portions of the circumferential surfaces of the bearing pipe materials 4, 5, and the annular protrusions 4a, 5a of the bearing pipe materials 4, 5 are formed into burring parts 2c', They fit into the holes 2c, 3c and 2d, 3d, respectively, so as to be sandwiched between the holes 3c', 2d', and 3d' (see FIGS. 2a and 2b). In this state, part A is spot welded, part B is partially circumferentially welded, and part C is further partially welded. As a result, the left and right connecting rod main bodies 2 and 3 and the bearing pipe members 4 and 5 are integrated with each other.
また、油路の形成は、適当な工程で、コイニン
グ加工等により凹溝６を設け、この凹溝６内に金
属パイプ７を圧入し、スポツト溶接することによ
り行なわれる。図には、大端部２ｂ，３ｂの油路
のみを示したが、小端部２ａ，３ａにも同様にし
て形成され得ること、もちろんである。ここで金
属パイプ７の埋設は省略することができる。 Further, the oil passage is formed by forming a groove 6 by coining or the like in an appropriate process, press-fitting the metal pipe 7 into the groove 6, and spot-welding it. Although only the oil passages at the large ends 2b and 3b are shown in the figure, it goes without saying that they can also be formed in the same manner at the small ends 2a and 3a. Here, burying the metal pipe 7 can be omitted.
なお、左、右コンロツド本体部２，３は最近、
市販されつつある強度のある絞り性の良い高張力
鋼板を使用すれば十分な強度が得られるが、強度
の設定は板厚如何で任意に設定し得る。 In addition, the left and right connecting rod main bodies 2 and 3 have recently been
Sufficient strength can be obtained by using high-strength steel plates that are commercially available and have good drawability, but the strength can be set arbitrarily depending on the plate thickness.
また、コンロツドの小端部と大端部との形状差
による強度上のアンバランスは、小端部と大端部
との板厚を変更すること等で解消し得ることとな
る。 Furthermore, the imbalance in strength due to the difference in shape between the small end and the large end of the cooking rod can be resolved by changing the plate thickness of the small end and the large end.
以上、説明したように、本考案の車輛用板金製
コンロツドによれば、従来の組立式コンロツドに
存在したボルト部の補強用厚肉部が存しないから
極めて軽量であると共に、板金のプレス加工によ
り製造し得るから量産性に優れるという効果を生
ずる。更に、部品点数が少ないから製造コストは
極めて低く、高張力鋼板を使用することにより十
分な強度が得られるという効果を生ずる。また、
左右コンロツド本体部の小端部及び大端部がバー
リング加工によつて成形されるので、大端部及び
小端部の剛性が強化されると共にベアリングパイ
プ材の周面中央部に環状突部を形成し、この環状
突部をバーリング加工部の間に挾持するようにし
て、ベアリングパイプ材をコンロツド本体と一体
化したので、高温を加えず簡単な加工で組付がで
きる。また、一体化溶接のため振動特性に優れる
と同時に、油路の加工も極めて容易であるという
効果を生ずる。 As explained above, the sheet metal connecting rod for vehicles of the present invention is extremely lightweight because there is no thick walled part for reinforcing the bolt part that existed in conventional prefabricated connecting rods. Since it can be manufactured, it has the effect of being excellent in mass productivity. Furthermore, since the number of parts is small, manufacturing costs are extremely low, and the use of high-tensile steel plates provides the effect of providing sufficient strength. Also,
Since the small and large ends of the left and right connecting rod main bodies are formed by burring, the rigidity of the large and small ends is strengthened, and an annular protrusion is formed in the center of the circumferential surface of the bearing pipe material. The annular protrusion is sandwiched between the burring parts and the bearing pipe material is integrated with the connecting rod body, so it can be assembled by simple machining without applying high temperatures. In addition, since it is integrally welded, it has excellent vibration characteristics, and at the same time, it is extremely easy to process the oil passage.
第１図は本考案の車輛用板金製コンロツドの斜
視図、第２図ａは第１図の中央縦断面図、第２図
ｂはベアリングパイプ材の中央部の拡大部分断面
図、第３図は大端部に形成された油路付近の断面
図である。
１……車輛用板金製コンロツド、２……左コン
ロツド本体部、３……右コンロツド本体部、２
ａ，３ａ……小端部、２ｂ，３ｂ……大端部、２
ｃ，３ｃ……ピストンピン挿通用の孔、２ｄ，３
ｄ……クランクシヤフトピン挿通用の孔、３c′，
３d′……バーリング加工部、３ｆ……強化用の絞
り出し凸部、４，５……ベアリングパイプ材、４
ａ，５ａ……環状突部、Ａ，Ｂ，Ｃ……溶接部。
Fig. 1 is a perspective view of a sheet metal connecting rod for a vehicle according to the present invention, Fig. 2a is a central vertical sectional view of Fig. 1, Fig. 2b is an enlarged partial sectional view of the central part of the bearing pipe material, and Fig. 3 is a cross-sectional view of the vicinity of an oil passage formed at the big end. 1...Sheet metal connecting rod for vehicles, 2...Left connecting rod main body, 3...Right connecting rod main body, 2
a, 3a...small end, 2b, 3b...big end, 2
c, 3c... Piston pin insertion hole, 2d, 3
d...Crankshaft pin insertion hole, 3c',
3d'... Burring processing part, 3f... Squeezing convex part for reinforcement, 4, 5... Bearing pipe material, 4
a, 5a... annular protrusion, A, B, C... welded part.
Claims (1)
は、外形穴抜きが施こされ、これらの孔の周部は
バーリング加工が施こされて筒状のバーリング加
工部が形成された ピストンピン挿通用の孔とクランクシヤフトピ
ン挿通用の孔とをそれぞれ有する左、右コンロツ
ド本体部をプレス加工により成形し、該左、右コ
ンロツド本体部を溶接により一体化すると共に、
前記小端部と大端部の間に強化用の絞り出し凸部
を設け前記左、右コンロツド本体部の剛性を強化
する構成とし、前記ピストン挿通用の孔と前記ク
ランクシヤフトピン挿通用の孔とには、それぞれ
その周面の中央部に環状突部を形成したベアリン
グパイプ材を、前記環状突部が前記バーリング加
工部の間に挾持するように嵌合装着したことを特
徴とする車輛用板金製コンロツド。[Claims for Utility Model Registration] It has a small end and a large end, the small end and the large end have external holes punched out, and the periphery of these holes is burred. The left and right connecting rod main bodies, each having a hole for inserting a piston pin and a hole for inserting a crankshaft pin, each having a cylindrical burring part formed therein, are formed by press working. In addition to integrating the parts by welding,
A reinforcing convex portion is provided between the small end and the large end to strengthen the rigidity of the left and right connecting rod main bodies, and the piston insertion hole and the crankshaft pin insertion hole are formed. The sheet metal for a vehicle is characterized in that a bearing pipe material having an annular protrusion formed at the center of its peripheral surface is fitted and fitted so that the annular protrusion is sandwiched between the burring parts. Manufactured stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981012509U JPS6242169Y2 (en) | 1981-01-31 | 1981-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981012509U JPS6242169Y2 (en) | 1981-01-31 | 1981-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57126622U JPS57126622U (en) | 1982-08-06 |
| JPS6242169Y2 true JPS6242169Y2 (en) | 1987-10-29 |
Family
ID=29810619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981012509U Expired JPS6242169Y2 (en) | 1981-01-31 | 1981-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242169Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100414A (en) * | 1979-01-27 | 1980-07-31 | Yachiyo Kogyo Kenkyusho:Kk | Connecting rod for internal combustion engine and its manufacturing method |
-
1981
- 1981-01-31 JP JP1981012509U patent/JPS6242169Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55100414A (en) * | 1979-01-27 | 1980-07-31 | Yachiyo Kogyo Kenkyusho:Kk | Connecting rod for internal combustion engine and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57126622U (en) | 1982-08-06 |
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