JPH0519631U - Bearing device for internal combustion engine - Google Patents

Bearing device for internal combustion engine

Info

Publication number
JPH0519631U
JPH0519631U JP017127U JP1712791U JPH0519631U JP H0519631 U JPH0519631 U JP H0519631U JP 017127 U JP017127 U JP 017127U JP 1712791 U JP1712791 U JP 1712791U JP H0519631 U JPH0519631 U JP H0519631U
Authority
JP
Japan
Prior art keywords
crankshaft
internal combustion
bearing device
outer ring
combustion engine
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
Application number
JP017127U
Other languages
Japanese (ja)
Inventor
裕従 奥瀬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP017127U priority Critical patent/JPH0519631U/en
Publication of JPH0519631U publication Critical patent/JPH0519631U/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Support Of The Bearing (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

(57)【要約】 【目的】 クランクシャフトの転がり軸受としてダンパ
−効果を有し且つ摩擦トルクを減少させることの出来る
内燃機関用の軸受装置を提供する。 【構成】 クランクケ−ス及びシリンダブロックに多角
形状に穴を形成すると共に該穴に、外周形状が前記クラ
ンクケ−ス及びシリンダブロックに形成された多角形状
の穴に対応する形状で所定の緩衝体用隙間が形成される
よう且つ内周面に円形軌道を有する二つ割型の外輪を配
置し、該外輪の円形軌道とクランクシャフトとの間に保
持器に保持された転動体を配置して成る内燃機関用の軸
受装置。 (57) [Abstract] [PROBLEMS] To provide a bearing device for an internal combustion engine, which has a damper effect as a rolling bearing of a crankshaft and can reduce friction torque. [Structure] A hole is formed in a polygonal shape in the crank case and the cylinder block, and a predetermined cushioning body is formed in the hole in an outer peripheral shape corresponding to the polygonal hole formed in the crank case and the cylinder block. A split outer ring having a circular race is arranged on the inner peripheral surface so as to form a gap, and a rolling element held by a cage is arranged between the circular race of the outer race and the crankshaft. Bearing device for internal combustion engine.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、内燃機関のクランクシャフトに使用される軸受、より詳しくはク ランクシャフトに生じる振動をより効果的に防止し、またクランクシャフトの回 転摩擦トルクを減少させることの出来る内燃機関用の軸受装置に関する。 The present invention provides a bearing used for a crankshaft of an internal combustion engine, more specifically, an internal combustion engine that can more effectively prevent vibrations that occur in the crankshaft and reduce the rotating friction torque of the crankshaft. Bearing device

【０００２】[0002]

【従来の技術】[Prior Art]

内燃機関用のクランクシャフトにはシリンダ部における燃焼サイクルやクラン クシャフト自体の機械加工精度の限界等に起因して振動や衝撃が伝達される。こ のためクランクシャフト、特に軸受装置には防振対策が施されたものがある。例 えば実公昭５２−２１３８６号では、図５に示すように、多気筒エンジンのクラ ンク軸ベアリングの内の２個（図示せず）をクランクケ−スに直接固定し、他の ベアリング２０はゴムや油膜等のような緩衝体２１を介してクランクケ−ス２３ に取付けたものが知られている。また、クランクシャフト自体の振動防止を意図 したものではないがピストンの冷却や潤滑用として、特開昭６１−１９２９１８ 号ではクランクピンに油供給通路を設け、コンロッドに油案内室を設け、コンロ ッド大端部とクランクピンとの間或いはピストンピンとコンロッド小端部との間 に配置された軸受部（ブッシュ）に油膜を形成すると共に潤滑油中のキャピテ− ションを防止するため通路に空気出入孔を穿設したものが知られている。 これらはいずれもクランク軸の振動防止や軸受装置の潤滑を図る上で効果的で ある。更に、図７に示すようにコンロッド大端部とクランクピンとの間にブッシ ュ３０が嵌合され、クランクピン３１と該ブッシュ３０との間に油膜用隙間３２ を形成するようにしたものも知られている。これでは低速時及び水平対向エンジ ンの場合、左右への変動荷重時等にクランクピン３１とブッシュ３０とが接触し カンカンと音を出すため、図８に示すようにクランクケ−ス３３とブッシュ３０ との間及びブッシュ３０とクランクピン３１との間にも別の油膜用隙間３４を形 成して振動や衝撃を緩和するようにしたものも知られている。 Vibrations and shocks are transmitted to the crankshaft for internal combustion engines due to the combustion cycle in the cylinder and the limit of machining accuracy of the crankshaft itself. Therefore, some crankshafts, especially bearing devices, have anti-vibration measures. For example, in Japanese Utility Model Publication No. 52-21386, as shown in FIG. 5, two (not shown) of the crankshaft bearings of a multi-cylinder engine are directly fixed to the crankcase, and the other bearings 20 are made of rubber. It is known that the crankcase 23 is attached to the crankcase 23 via a buffer 21 such as an oil film or an oil film. Further, although not intended to prevent vibration of the crankshaft itself, for cooling or lubricating the piston, in JP-A-61-192918, an oil supply passage is provided in the crank pin, an oil guide chamber is provided in the connecting rod, and a connecting rod is provided. An oil film is formed on the bearing (bush) located between the large end of the crankshaft and the crankpin, or between the piston pin and the small end of the connecting rod. It is known that a hole is formed. All of these are effective in preventing vibration of the crankshaft and lubricating the bearing device. Furthermore, as shown in FIG. 7, a bushing 30 is fitted between the large end of the connecting rod and the crank pin to form an oil film gap 32 between the crank pin 31 and the bush 30. Has been. In this case, at low speed and in a horizontally opposed engine, the crank pin 31 and the bush 30 come into contact with each other to make a noise when the load fluctuates to the left and right. Therefore, as shown in FIG. It is also known that another oil film gap 34 is formed between the bush 30 and the crank pin 31 so as to absorb vibration and shock.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

クランク軸の軸受装置としては安全性を高めるためにも振動や衝撃を緩和する 必要があるが、図５に示すタイプのものは油膜自体が薄く且つ図６に示すように 偏心するためダンパ−としての効果が若干弱い傾向があり、更に外輪２０ａが回 転しては効果が弱くなるため回り止めピン等が必要となる。また、図８に示すタ イプのものも浮動ブッシュとならないよう回り止め用ピンを必要とする。 通常、クランクシャフトの軸受装置としてはブッシュのような軸受が用いられ ることが多いが、摩擦トルクを減少させるという見地からすれば一般的には転が り軸受の方が優れている。しかし、クランクシャフトで転がり軸受を使用し外輪 をフロ−テイングブッシュとしてダンパ−効果を狙う場合、外輪は組込上二つ割 りとせざるをえないため外周が円形では油膜の保持が弱く、またコンロッドのよ うな異形の外輪（コンロッド自体が外輪となる）は全体を覆わなければならない ためネジ用孔付きとならざるを得ず、従って軸受としては成立しない。この考案 はかかる課題に鑑みてなされたものであり、その目的とするところはクランクシ ャフトの転がり軸受としてダンパ−効果を有し且つ摩擦トルクを減少させること の出来る内燃機関用の軸受装置を提供することにある。 As a crankshaft bearing device, it is necessary to mitigate vibrations and shocks in order to enhance safety, but the type shown in Fig. 5 is a damper because the oil film itself is thin and eccentric as shown in Fig. 6. The effect tends to be slightly weaker, and if the outer ring 20a rotates further, the effect becomes weaker, so a rotation stop pin or the like is required. Further, the type shown in FIG. 8 also requires a pin for preventing rotation so as not to be a floating bush. Normally, a bearing such as a bush is often used as a bearing device for a crankshaft, but a rolling bearing is generally superior from the viewpoint of reducing friction torque. However, when using a rolling bearing on the crankshaft and aiming for a damper effect by using the outer ring as a floating bush, the outer ring has to be split in two because it is built in, and if the outer circumference is circular, the oil film is weakly retained. Since a deformed outer ring such as a connecting rod (the connecting rod itself is the outer ring) must be covered entirely, it must be provided with a screw hole and therefore cannot be used as a bearing. The present invention has been made in view of the above problems, and an object thereof is to provide a bearing device for an internal combustion engine that has a damper effect as a rolling bearing of a crankshaft and can reduce friction torque. Especially.

【０００４】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

即ち、この考案は、クランクケ−ス及びシリンダブロックに軸受を介してクラ ンクシャフトを支持する内燃機関用の軸受装置において、前記クランクケ−ス及 びシリンダブロックに多角形状に穴を形成すると共に該穴に、外周形状が前記ク ランクケ−ス及びシリンダブロックに形成された多角形状の穴に対応する形状で 所定の緩衝体用隙間が形成されるよう且つ内周面に円形軌道を有する二つ割型の 外輪を配置し、該外輪の円形軌道と前記クランクシャフトとの間に保持器に保持 された転動体を配設して成ることを特徴とする。 That is, the present invention relates to a bearing device for an internal combustion engine in which a crankshaft is supported on a crankcase and a cylinder block through bearings, and a polygonal hole is formed in the crankcase and the cylinder block and the hole is formed. A half-split type with an outer peripheral shape corresponding to the polygonal holes formed in the crankcase and the cylinder block so that a predetermined buffer gap is formed and a circular orbit on the inner peripheral surface. The outer ring is arranged, and the rolling element held by a cage is arranged between the circular orbit of the outer ring and the crankshaft.

【０００５】[0005]

【作用】[Action]

この考案にかかる内燃機関用の軸受装置を上記手段とした場合の作用を添付図 の符号を用いて説明する。 The operation when the bearing device for an internal combustion engine according to the present invention is used as the above means will be described with reference to the reference numerals in the accompanying drawings.

【０００６】 外輪３はクランクシャフト７が回転しても回転することはなく、またこれら外 輪３の各平坦面とクランクケ−ス１等との間の隙間６の油膜がダンパ−（油の排 除、吸入時の抵抗）の役割をしてクランクシャフト７の回転に伴って生じる振動 を吸収する。更に、軌道空間には転動体１０を配設するためクランクシャフト回 転時の摩擦トルクも減少する。The outer ring 3 does not rotate even if the crankshaft 7 rotates, and the oil film in the gap 6 between each flat surface of the outer ring 3 and the crankcase 1 or the like is a damper (oil drainage). Except for the above, it acts as a resistance at the time of inhalation) and absorbs the vibration generated as the crankshaft 7 rotates. Further, since the rolling elements 10 are arranged in the raceway space, the friction torque when the crankshaft rotates is reduced.

【０００７】[0007]

【実施例】【Example】

以下、この考案の具体的実施例について図面を参照して説明する。 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings.

【０００８】 図１はこの考案にかかる内燃機関用の軸受装置を備えたクランクシャフトの一 部断面図であり、図２は図１のＡ−Ａ矢視断面図である。３は外輪であって外形 を矩形に形成すると共に上部外輪３ａと下部外輪３ｂとに二分割してあり、上下 分割に際しては割り加工又は機械加工とし、組立てに際してはボルトＢ1 、Ｂ2 により接合し一体化する。そしてクランクケ−ス１とシリンダブロック２には油 供給路４、５を設け、また該外輪３とこれらクランクケ−ス１やシリンダブロッ ク２との間には油膜を形成するための隙間６を設ける。次に前記外輪３の内周面 は円形軌道３ｃを形成し、この円形軌道３ｃとクランクシャフト７との間には保 持器８によって保持されたボ−ル或いはころ等の転動体１０を配設する。この場 合、クランクシャフト７には実施例のように内輪９を嵌合し、該内輪９の軌道面 ９ａと外輪３の軌道面３ｃとの間に保持器８によって保持された転動体１０を配 設しても良い。FIG. 1 is a partial cross-sectional view of a crankshaft provided with a bearing device for an internal combustion engine according to the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. Reference numeral 3 is an outer ring, which has a rectangular outer shape and is divided into an upper outer ring 3a and a lower outer ring 3b. The upper and lower outer rings 3a and 3b are split or machined, and joined by bolts B 1 and B 2 when assembled. And integrate. The crank case 1 and the cylinder block 2 are provided with oil supply passages 4 and 5, and a gap 6 for forming an oil film is provided between the outer ring 3 and the crank case 1 and the cylinder block 2. .. Next, the inner peripheral surface of the outer ring 3 forms a circular raceway 3c, and between the circular raceway 3c and the crankshaft 7, a rolling element 10 such as a ball or a roller held by a retainer 8 is arranged. Set up. In this case, the inner ring 9 is fitted to the crankshaft 7 as in the embodiment, and the rolling element 10 held by the cage 8 is mounted between the raceway surface 9a of the inner ring 9 and the raceway surface 3c of the outer ring 3. It may be distributed.

【０００９】 尚、この場合クランクケ−ス１やシリンダブロック２には軸受外輪３を配置す るため該外輪３の外形形状に合わせて加工を施すがこの加工は平面加工のみであ り複雑な曲線加工等はないので比較的容易である。しかし外輪３の外形に一部円 形や楕円を含む場合、これに合わせて一部を円形或いは楕円に加工することは構 わない。In this case, in order to dispose the bearing outer ring 3 on the crank case 1 and the cylinder block 2, processing is performed in accordance with the outer shape of the outer ring 3, but this processing is only plane processing and a complicated curve. Since there is no processing etc., it is relatively easy. However, when the outer shape of the outer ring 3 includes a part of a circle or an ellipse, part of the outer ring 3 may be processed into a circle or an ellipse.

【００１０】 上記する如く、この考案にかかる軸受装置の外輪３の外形形状は円形とするの ではなく平坦面を有する形状とし、クランクケ−ス１やシリンダブロック２との 間を油膜形成面とする。また、外輪３外周面とクランクケ−ス１等の間の油膜用 隙間６にはシ−ルリング１１を嵌め油が漏れないようにすると共に、油供給路４ 、５の入口からオイルポンプ等により油を供給する。尚、隙間６には油膜の他ゴ ムなどの緩衝体を嵌めるようにしても良い。As described above, the outer shape of the outer ring 3 of the bearing device according to the present invention is not circular but has a flat surface, and the space between the crank case 1 and the cylinder block 2 is an oil film forming surface. .. Further, a seal ring 11 is fitted in the oil film gap 6 between the outer peripheral surface of the outer ring 3 and the crankcase 1 to prevent oil from leaking, and the oil is supplied from the inlets of the oil supply passages 4 and 5 by an oil pump or the like. To supply. A buffer such as rubber may be fitted in the gap 6 in addition to the oil film.

【００１１】 この考案にかかる軸受装置の外輪３を以上のように形成すれば、外輪３はクラ ンクシャフト７が回転しても回転することはなく、またこれら外輪３の各平坦面 とクランクケ−ス１等との間の隙間６の油膜がダンパ−（油の排除、吸入時の抵 抗）の役割をしてクランクシャフト７の回転に伴って生じる振動を吸収する。更 に、軌道空間には転動体を配設するためクランクシャフト回転時の摩擦トルクも 減少する。If the outer ring 3 of the bearing device according to the present invention is formed as described above, the outer ring 3 does not rotate even if the crankshaft 7 rotates, and the flat surfaces of the outer ring 3 and the crankcase are not rotated. The oil film in the gap 6 between the nozzle 1 and the like plays a role of a damper (a resistance at the time of removing and sucking oil), and absorbs the vibration generated as the crankshaft 7 rotates. Furthermore, since rolling elements are installed in the raceway space, friction torque during rotation of the crankshaft is also reduced.

【００１２】 図３はこの考案にかかる内燃機関の軸受装置の変形実施例であって、軸受部分 を傾斜させて取付ける場合を示す。このように外輪３の外形が矩形であってもク ランクケ−ス１やシリンダブロック２を外輪３の矩形形状に合わせて斜面状に加 工すれば軸受装置全体を傾斜させて取付けることが可能である。FIG. 3 shows a modified embodiment of the bearing device for an internal combustion engine according to the present invention, showing a case where the bearing portion is mounted with an inclination. Thus, even if the outer ring 3 has a rectangular outer shape, if the crankcase 1 and the cylinder block 2 are machined in a slanted shape in accordance with the rectangular shape of the outer ring 3, it is possible to mount the bearing device in a tilted manner. is there.

【００１３】 図４はこの考案にかかる内燃機関の軸受装置の更に別の変形実施例であって、 軸受の外輪３ａ、３ｂを多角形ににして取付ける場合を示す。このように外輪３ の外形は平坦面を有する六角形としても良い。要するに外輪３の外形各面は平坦 面を有する多角形とし回転防止可能な形状にすると共にクランクケ−ス１との間 に油膜等緩衝体用の隙間を形成すれば良く、その形状は問われない。FIG. 4 shows still another modified embodiment of the bearing device for an internal combustion engine according to the present invention, in which the outer rings 3a and 3b of the bearing are attached in a polygonal shape. Thus, the outer shape of the outer ring 3 may be a hexagon having a flat surface. In short, each outer surface of the outer ring 3 is polygonal having a flat surface and has a shape capable of preventing rotation, and a gap for a shock absorber such as an oil film is formed between the outer surface of the outer ring 3 and the crankcase 1, and the shape is not limited. ..

【００１４】[0014]

【考案の効果】[Effect of the device]

この考案にかかる内燃機関用の軸受装置は、以上詳述したような構成としたの で、クランクシャフトの回転やシリンダでの燃焼サイクルにより生じる振動や衝 撃を緩和させることが出来る。また、外輪の外形が円形でないため外輪自体が回 転することはなく、従来の円形軸受に形成した油膜とは異なり偏心の結果接触し て振動が生じるということはない。更に回転時の摩擦トルクも減少させることが 出来、それだけ燃費向上にも役立つ。 Since the bearing device for an internal combustion engine according to the present invention is configured as described above in detail, it is possible to reduce vibrations and impacts caused by the rotation of the crankshaft and the combustion cycle of the cylinder. Also, since the outer ring has a non-circular outer shape, the outer ring itself does not rotate, and unlike the oil film formed on conventional circular bearings, contact does not result in vibration due to eccentricity. Furthermore, the friction torque during rotation can be reduced, which helps improve fuel efficiency.

【００１５】[0015]

【図面の簡単な説明】[Brief description of drawings]

【図１】 この考案にかかる内燃機関用の軸受装置を備
えたクランクシャフトの一部断面図である。FIG. 1 is a partial cross-sectional view of a crankshaft including a bearing device for an internal combustion engine according to the present invention.

【図２】 図１のＡ−Ａ矢視断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.

【図３】 この考案にかかる内燃機関の軸受装置の変形
実施例である。FIG. 3 is a modified embodiment of the bearing device for an internal combustion engine according to the present invention.

【図４】 この考案にかかる内燃機関の軸受装置の別の
変形実施例である。FIG. 4 is another modified embodiment of the bearing device for an internal combustion engine according to the present invention.

【図５】 内燃機関のクランクシャフトに使用される従
来の軸受装置であって振動防止装置を備えた軸受の断面
図である。FIG. 5 is a cross-sectional view of a conventional bearing device used for a crankshaft of an internal combustion engine, the bearing device including an anti-vibration device.

【図６】 内燃機関のクランクシャフトに使用される従
来の軸受装置であって振動防止装置を備えた軸受の断面
図で偏心した状態を示す図である。FIG. 6 is a view showing an eccentric state in a cross-sectional view of a conventional bearing device used for a crankshaft of an internal combustion engine, the bearing having an anti-vibration device.

【図７】 内燃機関のクランクシャフトに使用される従
来の軸受装置であってブッシュを備えた軸受の断面図で
ある。FIG. 7 is a sectional view of a conventional bearing device used for a crankshaft of an internal combustion engine, the bearing including a bush.

【図８】 内燃機関のクランクシャフトに使用される従
来の軸受装置であって振動防止装置を備えたブッシュの
断面図で偏心した状態を示す図である。FIG. 8 is a view showing an eccentric state in a sectional view of a bush which is a conventional bearing device used for a crankshaft of an internal combustion engine and which is provided with a vibration preventing device.

【符号の説明】[Explanation of symbols]

１ クランクケ−ス ２ シリンダブロック
３ 外輪 ３ａ 上部外輪 ３ｂ 下部外輪
４、５ 油供給路 ６ 油膜用隙間 ７ クランクシャフト
８ 保持器 ９ 内輪 １０ 転動体 １１ シ−ルリ
ング1 crankcase 2 cylinder block
3 Outer ring 3a Upper outer ring 3b Lower outer ring
4, 5 Oil supply path 6 Oil film gap 7 Crankshaft
8 Cage 9 Inner ring 10 Rolling element 11 Seal ring

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成４年９月１８日[Submission date] September 18, 1992

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】考案の名称[Name of item to be corrected] Name of device

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【考案の名称】 内燃機関の軸受装置[Title of device] Bearing device for internal combustion engine

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】クランクケ−ス及びシリンダブロックに軸
受を介してクランクシャフトを支持する内燃機関用の軸
受装置において、前記クランクケ−ス及びシリンダブロ
ックに多角形状に穴を形成すると共に該穴に、外周形状
が前記クランクケ−ス及びシリンダブロックに形成され
た多角形状の穴に対応する形状で所定の緩衝体用隙間が
形成されるよう且つ内周面に円形軌道を有する二つ割型
の外輪を配置し、該外輪の円形軌道と前記クランクシャ
フトとの間に保持器に保持された転動体を配設して成る
ことを特徴とする内燃機関用の軸受装置。1. A bearing device for an internal combustion engine, wherein a crankshaft is supported on a crankcase and a cylinder block through bearings, and a hole is formed in a polygonal shape in the crankcase and the cylinder block, and the hole has an outer periphery. A split outer ring having a circular orbit on the inner peripheral surface is arranged so that a predetermined buffer gap is formed in a shape corresponding to the polygonal hole formed in the crank case and the cylinder block. A bearing device for an internal combustion engine, wherein a rolling element held by a cage is arranged between the circular raceway of the outer ring and the crankshaft.
JP017127U 1991-02-27 1991-02-27 Bearing device for internal combustion engine Pending JPH0519631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP017127U JPH0519631U (en) 1991-02-27 1991-02-27 Bearing device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP017127U JPH0519631U (en) 1991-02-27 1991-02-27 Bearing device for internal combustion engine

Publications (1)

Publication Number Publication Date
JPH0519631U true JPH0519631U (en) 1993-03-12

Family

ID=11935373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP017127U Pending JPH0519631U (en) 1991-02-27 1991-02-27 Bearing device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPH0519631U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038571A (en) * 2009-08-07 2011-02-24 Mitsubishi Motors Corp Bearing device for crankshaft, and method for assembling the same
JP2011047425A (en) * 2009-08-25 2011-03-10 Isuzu Motors Ltd Roller bearing for crankshaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038571A (en) * 2009-08-07 2011-02-24 Mitsubishi Motors Corp Bearing device for crankshaft, and method for assembling the same
JP2011047425A (en) * 2009-08-25 2011-03-10 Isuzu Motors Ltd Roller bearing for crankshaft

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