JPH0648174Y2 - Connecting rod - Google Patents
Connecting rodInfo
- Publication number
- JPH0648174Y2 JPH0648174Y2 JP1988052970U JP5297088U JPH0648174Y2 JP H0648174 Y2 JPH0648174 Y2 JP H0648174Y2 JP 1988052970 U JP1988052970 U JP 1988052970U JP 5297088 U JP5297088 U JP 5297088U JP H0648174 Y2 JPH0648174 Y2 JP H0648174Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- plate member
- plate members
- plate
- holes
- 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 - Lifetime
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は連接棒に関する。Detailed Description of the Invention Industrial Field The present invention relates to a connecting rod.
従来の技術 従来、内燃機関のピストンとクランク軸を連結する連接
棒は、通常鍛造や鍛造によつて作られているが、これ等
の連接棒は特に軽量化が望まれる携帯形作業機械用の機
関に用いるには重量が重過ぎ且つ製作コストが高いとい
う欠点がある。2. Description of the Related Art Conventionally, connecting rods that connect a piston and a crankshaft of an internal combustion engine are usually made by forging or forging, but these connecting rods are especially used for portable work machines where weight reduction is desired. It has the drawbacks of being too heavy and expensive to manufacture for use in engines.
この為、鋼板をプレス加工した部材の組み合わせで連接
棒を構成することも提案されているが、なお加工上や組
み立て上の問題が多い。Therefore, it has been proposed to form the connecting rod by combining the members obtained by pressing the steel plate, but there are still many problems in working and assembling.
考案が解決しようとする課題 そこで、本考案は、簡単に製作及び組み立てを行うこと
ができ、且つ軽量で低コストの連接棒を提供することを
目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a connecting rod that can be easily manufactured and assembled, is lightweight, and is low in cost.
課題を解決するための手段 本考案によれば、プレス加工によつて形成され軸受穴を
両端部に有する一対の同形の板部材を背合わせ状に配置
して構成された連接棒は、板部材をその長手方向中心軸
線に対して左右対称形に形成すると共に板部材の所定の
位置に一対の互いに逆方向へ突出するエンボス部を中心
軸線に対して左右対称的に形成し、該エンボス部を互い
に係合させて板部材を互いに位置決めし、且つ板部材の
両端部に同形の穴を形成した構成を特徴とする。According to the present invention, a connecting rod constituted by arranging a pair of plate members of the same shape which are formed by press working and have bearing holes at both ends in a back-to-back relationship is a plate member. Are formed symmetrically with respect to the central axis of the longitudinal direction thereof, and a pair of embossed portions projecting in opposite directions are formed symmetrically with respect to the central axis at predetermined positions of the plate member. It is characterized in that the plate members are positioned with respect to each other by engaging with each other, and holes of the same shape are formed at both ends of the plate members.
作用 従つて、板部材はそのエンボス部を互いに係合させるこ
とによつて位置決めされて整合され、また板部材の両端
部の穴はピストンピン及びクランクピンのいずれにも適
する軸受を圧入することができる。Therefore, the plate member is positioned and aligned by engaging the embossed portions thereof with each other, and the holes at both ends of the plate member can press fit the bearings suitable for both the piston pin and the crank pin. it can.
実施例 次に、本考案を図面の実施例に基づいて説明する。Embodiment Next, the present invention will be described based on an embodiment of the drawings.
図示した実施例の連接棒１は、第１図及び第２図に示す
ように一対の板部材２及び３で構成され、該板部材２及
び３のそれぞれは薄鋼板等の適当な金属材料の板材から
プレス加工によつてそれらの長手方向中心線II−IIに対
して左右対称形に、且つ横方向中心線IV−IVに対して上
下対称形に成形され互いに背合わせ状に配置される。こ
のため、これ等の板部材２及び３は一種類のプレス型で
作ることができる。前記板部材２及び３はそれらの上下
両端部に同じ直径を有する穴４及び５を形成して有し、
前記一方の板部材２の上側の穴４と他方の板部材３の上
側の穴とは同軸状に整合されて配置され、それらのプレ
ス加工によつて形成され、それぞれ外方に向けて伸びる
穴壁６及び７によつて一つの軸受穴８を前記連接棒１の
上側の端部に画成する。同様に、前記一方の板部材２の
下側の穴５と他方の板部材３の下側の穴とは同軸状に整
合されて配置され、それらのプレス加工によつて形成さ
れ、それぞれ外方に向けて伸びる穴壁７及び６によつて
一つの軸受穴９を前記連接棒１の下側の端部に画成す
る。このように形成された軸受穴８及び９には、その穴
壁部より巾広の適当な軸受、例えばシエル型ニードル軸
受（図示せず）がそれぞれ圧入されて前記一対の板部材
２及び３を一緒に強固に固定保持する。The connecting rod 1 of the illustrated embodiment is composed of a pair of plate members 2 and 3 as shown in FIGS. 1 and 2, and each of the plate members 2 and 3 is made of a suitable metal material such as a thin steel plate. The plate material is formed by press working so as to be bilaterally symmetrical with respect to the longitudinal centerline II-II and vertically symmetrical with respect to the lateral centerline IV-IV, and are arranged back to back. Therefore, these plate members 2 and 3 can be made by one type of press die. The plate members 2 and 3 have holes 4 and 5 having the same diameter at their upper and lower ends,
The holes 4 on the upper side of the one plate member 2 and the holes on the upper side of the other plate member 3 are coaxially aligned and arranged, and are formed by press working thereof, and the holes extend outward respectively. A bearing hole 8 is defined by the walls 6 and 7 at the upper end of the connecting rod 1. Similarly, the lower hole 5 of the one plate member 2 and the lower hole of the other plate member 3 are coaxially aligned and arranged, and are formed by press working thereof. A bearing hole 9 is defined in the lower end of the connecting rod 1 by means of hole walls 7 and 6 which extend towards. In the bearing holes 8 and 9 thus formed, a suitable bearing wider than the hole wall portion, for example, a shell type needle bearing (not shown), is press-fitted into the pair of plate members 2 and 3, respectively. Hold firmly together.
また、前記板部材２及び３はそれらの左右両側縁部に外
方へ屈曲した側部リブ10及び11をプレス加工によつてそ
れぞれ一体的に形成して強度を補強し、また前記上下の
穴４及び５に隣接する部分に外方へ膨出した中央リブ12
及び13（第３図に明瞭に示す）を前記長手方向中心線II
−IIに沿つてプレス加工によつてそれぞれ一体的に形成
して前記板部材２及び３の両端部の強度を補強してい
る。Further, the plate members 2 and 3 are integrally formed with outwardly bent side ribs 10 and 11 on both left and right edges thereof by press working to reinforce the strength, and the upper and lower holes. Central ribs 12 bulging outward in the area adjacent to 4 and 5
And 13 (shown clearly in FIG. 3) are said longitudinal centerlines II
-II is formed integrally by pressing along with II to reinforce the strength of both ends of the plate members 2 and 3.
更に、前記板部材２及び３のそれぞれは、第４図に示す
ように、前記横方向中心線IV−IV上において前記長手方
向中心線II−IIから所定の間隔Ｄをもつてその一方の側
へ離間した位置に、前記一方の板部材２の外方表面から
突出し且つその内方表面中へ窪んだエンボス部14をプレ
ス加工によつて形成しており、また前記横方向中心線IV
−IV上で前記長手方向中心線II−IIから同じ間隔Ｄだけ
他方の側へ離間した位置に、前記一方の板部材２の外方
表面中へ窪み且つその内方表面から突出する同じ形状の
エンボス部15をプレス加工によつて形成している。前記
他方の板部材３にも同様にエンボス部14及び15を形成し
ている。Further, as shown in FIG. 4, each of the plate members 2 and 3 has one side with a predetermined distance D from the longitudinal center line II-II on the lateral center line IV-IV. An embossed portion 14 projecting from the outer surface of the one plate member 2 and recessed in the inner surface thereof is formed by press working at a position spaced apart from each other, and the lateral center line IV
Of the same shape that is recessed into the outer surface of the one plate member 2 and protrudes from the inner surface thereof at a position spaced apart from the longitudinal centerline II-II on the other side by the same distance D on the -IV side. The embossed portion 15 is formed by pressing. Similarly, the other plate member 3 is also formed with embossed portions 14 and 15.
この構成によつて、一対の同形の板部材２及び３を図示
したように背合わせ状に接合する時に、一方の板部材２
のエンボス部14の凹部中へ他方の板部材３のエンボス部
15の凸部が嵌合し且つ他方の板部材３のエンボス部14の
凹部中へ一方の板部材２のエンボス部15の凸部が嵌合
し、それにより前記一対の板部材２及び３は互いに背合
わせの整合状態に位置決めされて組付けられ、必要に応
じてブレージング等の接合処理を行ない、連接棒１を簡
単に作ることができる。このようにして作られた連接棒
１はその上下の軸受穴８及び９に圧入された軸受にピス
トンピン及びクランクピンを回動可能に支持するように
組付けられ、その対称的な構造の故にその組付方向を考
慮することを必要としない。With this configuration, when the pair of plate members 2 and 3 having the same shape are joined back to back as shown in the drawing, one plate member 2
Into the recess of the embossed portion 14 of the other plate member 3
The convex portion of 15 fits and the convex portion of the embossed portion 15 of one plate member 2 fits into the concave portion of the embossed portion 14 of the other plate member 3, whereby the pair of plate members 2 and 3 are The connecting rods 1 can be easily manufactured by positioning and assembling in a back-to-back matching state and performing a joining process such as brazing if necessary. The connecting rod 1 thus manufactured is assembled so as to rotatably support the piston pin and the crank pin in the bearings press-fitted into the upper and lower bearing holes 8 and 9, and because of its symmetrical structure. It is not necessary to consider the assembly direction.
考案の効果 以上説明したように、本考案は、連接棒を一対の対照的
な同一形状の板部材で形成すると共に、該板部材のエン
ボス部を互いに係合させて板部材を互いに位置決めし、
且つ板部材の両端部に同形の穴を形成したので、それぞ
れの板部材を同じプレス型を用いて簡単に且つ安価に製
作することができ、板部材を簡単に位置決めして組み立
て作業を迅速に行うことができ、連接棒の両端部の軸受
穴をピストンピン及びクランクピンのいずれの軸受にも
適合するので連接棒の組付方向を考慮する必要がない等
の効果を奏する。As described above, according to the present invention, the connecting rod is formed of a pair of symmetrically shaped plate members, and the embossed portions of the plate members are engaged with each other to position the plate members with respect to each other.
Moreover, since the same shaped holes are formed at both ends of the plate member, each plate member can be easily and inexpensively manufactured by using the same press die, and the plate member can be easily positioned and the assembling work can be performed quickly. Since the bearing holes at both ends of the connecting rod can be fitted to the bearings of the piston pin and the crank pin, it is not necessary to consider the assembling direction of the connecting rod.
第１図は本考案に係る連接棒の一実施例を示す側面図、
第２図は第１図の線II−IIに沿つた断面図、第３図は第
１図の線III−IIIに沿つた断面図、そして第４図は第１
図の線IV−IVに沿つた拡大断面図である。 １……連接棒、2,3……板部材、4,5……板部材の穴、8,
9……軸受穴、14,15……エンボス部。FIG. 1 is a side view showing an embodiment of a connecting rod according to the present invention,
2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a sectional view taken along the line III-III in FIG. 1, and FIG.
FIG. 4 is an enlarged sectional view taken along the line IV-IV in the figure. 1 ... Connecting rod, 2, 3 ... Plate member, 4,5 ... Hole in plate member, 8,
9 …… Bearing hole, 14,15 …… Embossed part.
Claims (1)
部に有する一対の同形の板部材を背合わせ状に配置して
構成された連接棒であって、前記板部材（2,3）をその
長手方向中心軸線II−IIに対して左右対称形に形成する
と共に前記板部材の所定の位置に一対の互いに逆方向へ
突出するエンボス部（14,15）を前記中心軸線に対して
左右対称的に形成し、該エンボス部を互いに係合させて
前記板部材を互いに位置決めし、且つ前記板部材の両端
部に同形の穴（4,5）を形成したことを特徴とする連接
棒。1. A connecting rod comprising a pair of plate members of the same shape, which are formed by press working and have bearing holes at both ends thereof, arranged back to back, wherein the plate members (2, 3) are A pair of embossed portions (14, 15) which are formed symmetrically with respect to the longitudinal center axis II-II and project in opposite directions at predetermined positions of the plate member are symmetrical with respect to the center axis. A connecting rod, wherein the embossed portions are engaged with each other to position the plate members relative to each other, and holes (4,5) of the same shape are formed at both ends of the plate member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052970U JPH0648174Y2 (en) | 1988-04-20 | 1988-04-20 | Connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052970U JPH0648174Y2 (en) | 1988-04-20 | 1988-04-20 | Connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01156309U JPH01156309U (en) | 1989-10-27 |
| JPH0648174Y2 true JPH0648174Y2 (en) | 1994-12-12 |
Family
ID=31278966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988052970U Expired - Lifetime JPH0648174Y2 (en) | 1988-04-20 | 1988-04-20 | Connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648174Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291928A (en) * | 1996-02-29 | 1997-11-11 | Ntn Corp | Connecting rod made of steel plate |
| JP4310774B2 (en) * | 2003-04-24 | 2009-08-12 | Ｎｔｎ株式会社 | Connecting rod assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS427683Y1 (en) * | 1964-09-28 | 1967-04-17 | ||
| JPS57173610A (en) * | 1981-04-17 | 1982-10-26 | Yamaha Motor Co Ltd | Connecting rod made of steel plate for engine |
-
1988
- 1988-04-20 JP JP1988052970U patent/JPH0648174Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01156309U (en) | 1989-10-27 |
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