JPS6321053B2 - - Google Patents
Info
- Publication number
- JPS6321053B2 JPS6321053B2 JP13886582A JP13886582A JPS6321053B2 JP S6321053 B2 JPS6321053 B2 JP S6321053B2 JP 13886582 A JP13886582 A JP 13886582A JP 13886582 A JP13886582 A JP 13886582A JP S6321053 B2 JPS6321053 B2 JP S6321053B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- insertion hole
- vibration
- damping body
- stud
- 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
- 230000037431 insertion Effects 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/06—Screwed connections specially modified in view of tensile load; Break-bolts having regard to possibility of fatigue rupture
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】
本発明は例えば自動車用エンジン等に用いられ
る比較的長尺のボルト、スタツトボルト等に発生
する振動を抑える装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for suppressing vibrations generated in relatively long bolts, stud bolts, etc. used in, for example, automobile engines.
内燃機関等の組み立てに用いられているボルト
等のうち、比較的長尺のボルトあるいはスタツト
ボルトなどは、エンジンに発生する振動を受けて
共振し、金属的疲労が進みがちである。このため
従来この種の長尺のスタツトボルトにはその中間
部にゴム等の弾性材料を装着して、これによつて
ボルトとボルトの挿通孔との間隙を塞ぐように
し、もつてスタツトボルトの振動を防ぐようにし
ていた。しかしながらこのような対策をとる時に
はボルト自体に吸振材の取り付け加工が必要であ
るばかりでなく、この場合にはゴム等の吸振部分
の径がボルトの挿通孔より通常太くなるためエン
ジンの組み付け時における作業性が悪くなるとい
う欠点は免れ得ない。 BACKGROUND OF THE INVENTION Among bolts and the like used in assembling internal combustion engines, relatively long bolts or stud bolts tend to resonate due to the vibrations generated in the engine, and metal fatigue tends to progress. For this reason, conventionally, long stud bolts of this type are equipped with an elastic material such as rubber in the middle to close the gap between the bolt and the bolt insertion hole, thereby reducing the vibration of the stud bolt. I was trying to prevent it. However, when taking such measures, it is not only necessary to attach vibration-absorbing material to the bolt itself, but in this case, the diameter of the vibration-absorbing part such as rubber is usually larger than the bolt insertion hole, which causes problems when assembling the engine. The disadvantage of poor workability cannot be avoided.
本発明はこのような従来装置の改善を試みたも
のであつて、その特徴はボルトの挿通孔より長
く、且つボルトと挿通孔との間に間隙を存して挿
入された管状の制振体を、ボルトまたはナツトの
締め込みにより圧縮変形させ、ボルト外周面と挿
通孔の内壁面とに当接せしめたことにある。 The present invention is an attempt to improve such a conventional device, and its feature is that a tubular damper is longer than the bolt insertion hole and is inserted with a gap between the bolt and the insertion hole. is compressed and deformed by tightening the bolt or nut, and brought into contact with the outer peripheral surface of the bolt and the inner wall surface of the insertion hole.
以下本発明を図示の実施例に基づいて説明す
る。 The present invention will be explained below based on illustrated embodiments.
まず第１図、第２図に示す一実施例について説
明すると、スタツトボルト１はシリンダヘツド
２、シリンダブロツク３に形成された挿通孔４に
挿通されて、両者２，３をクランクケース５に締
め付け固定するものである。 First, an embodiment shown in FIGS. 1 and 2 will be described. A stud bolt 1 is inserted into an insertion hole 4 formed in a cylinder head 2 and a cylinder block 3, and both 2 and 3 are tightened and fixed to a crankcase 5. It is something to do.
この挿通孔４に本発明の制振体６が挿入され
る。この制振体６は金属製の薄肉管状体であつ
て、その長さはシリンダヘツド２及びシリンダブ
ロツク３に形成された挿通孔４より若干大きく、
スタツトボルト１と挿通孔４との間に間隙を存し
挿入できる太さと肉厚を有している。また、この
制振体６の略中央部に屈曲線P1，P2，P3を有す
る褶曲部７が屈曲形成されている。 The vibration damper 6 of the present invention is inserted into this insertion hole 4. This damping body 6 is a thin metal tubular body, and its length is slightly larger than the insertion hole 4 formed in the cylinder head 2 and cylinder block 3.
A gap exists between the stud bolt 1 and the insertion hole 4, and the stud bolt 1 has a thickness and a wall thickness that can be inserted. Further, a folded portion 7 having curved lines P 1 , P 2 , and P 3 is formed in a substantially central portion of the damping body 6 .
そしてこのように形成された制振体６を挿通孔
４に挿入し、次いでスタツトボルト１を制振体６
の中空部に挿入して、スタツトボルト１をクラン
クケース５にねじ込むと、該ボルト１の頭部が制
振体６の先端部に当接し、さらにねじ込むことに
よつて褶曲部７を圧縮変形して、屈曲線P1，P3
がスタツトボルト１の外周面に、屈曲線P2が挿
通孔４の内壁面に夫々当接する。 Then, the vibration damping body 6 formed in this way is inserted into the insertion hole 4, and then the stud bolt 1 is inserted into the vibration damping body 6.
When the stud bolt 1 is inserted into the hollow part and screwed into the crankcase 5, the head of the bolt 1 comes into contact with the tip of the damper 6, and by further screwing, the folded part 7 is compressed and deformed. , bending lines P 1 , P 3
is in contact with the outer peripheral surface of the stud bolt 1, and the bent line P2 is in contact with the inner wall surface of the insertion hole 4, respectively.
このような状態でエンジンが組み付けられるこ
とによつて、比較的長尺のボルト１はそのほぼ中
央で制振体６によつて保持されるような状態とな
り、その振動の発生が抑えられる。 By assembling the engine in such a state, the comparatively long bolt 1 is held approximately in the center by the vibration suppressor 6, and the generation of vibration is suppressed.
第３図に示す実施例は、前実施例に比べ屈曲部
を大きくしたもので、圧縮変形することにより、
屈曲線P1，P2，P3の外経部が挿通孔４の内壁面
に、同じく内径部がスタツトボルト１の外周面に
当接し、前述の実施例と同様の作用効果を奏す
る。 The embodiment shown in FIG. 3 has a larger bent part than the previous embodiment, and by compressing and deforming,
The outer diameter portions of the bending lines P 1 , P 2 , and P 3 contact the inner wall surface of the insertion hole 4, and the inner diameter portions contact the outer circumferential surface of the stud bolt 1, so that the same effects as in the previous embodiment are achieved.
次に第４図、第５図に示す実施例は、制振体６
に対し偏荷重を与えて圧縮させるようにしたもの
で、制振体６の上端６ａ（または下方でもよい）
を斜めに切り落とした形状としておき、ねじ込み
開始時に制振体６の上端６ａの一部に集中的に圧
縮応力が加わるように構成するのである。しかる
時はねじ込みに従つて第５図に示すように全体と
してく字状に制振体６が屈曲し、制振体６を介し
てボルト１と挿通孔４とが互いに保持されるよう
に構成される。 Next, in the embodiment shown in FIGS. 4 and 5, the damping body 6
The upper end 6a (or lower part of the damping body 6) of the damping body 6 is compressed by applying an uneven load to
is cut off diagonally, and compressive stress is concentratedly applied to a part of the upper end 6a of the vibration damper 6 at the start of screwing. In such a case, as the screw is screwed in, the vibration damping body 6 is bent in a dogleg shape as a whole as shown in FIG. 5, and the bolt 1 and the insertion hole 4 are held together through the vibration damping body 6. be done.
尚上記における圧縮変形は、座屈変形あるいは
弾性変形でよく、後者の場合は再使用可能であ
る。 Note that the compressive deformation mentioned above may be buckling deformation or elastic deformation, and in the latter case, it can be reused.
本発明は以上述べたような構成をとるから比較
的長尺なボルトに対する制振対策が容易にとり得
るものである。また既存の長尺ボルトに対する後
からの対策も容易に行い得るからこの点でも好ま
しいものである。 Since the present invention has the configuration described above, it is possible to easily take vibration damping measures for relatively long bolts. Further, it is also preferable in this respect because it is possible to easily take measures to replace the existing long bolts.
第１図、第２図は本発明の一実施例を示すもの
で、第１図はスタツトボルトのねじ込み前を、第
２図はねじ込み後を示す縦断面図、第３図は他の
実施例を示す縦断面図、第４図、第５図は更に他
の実施例を示すもので、第４図はねじ込み前を、
第５図はねじ込み後を示す縦断面図である。
１はスタツトボルト、２はシリンダヘツド、３
はシリンダブロツク、４は挿通孔、５はクランク
ケース、６は制振体である。
Fig. 1 and Fig. 2 show one embodiment of the present invention, Fig. 1 is a vertical cross-sectional view showing the stud bolt before screwing in, Fig. 2 is a vertical sectional view after screwing the stud bolt, and Fig. 3 shows another embodiment. The longitudinal sectional views shown, FIGS. 4 and 5 show still other embodiments, and FIG. 4 shows the state before screwing,
FIG. 5 is a longitudinal sectional view showing the state after screwing. 1 is the stud bolt, 2 is the cylinder head, 3
4 is a cylinder block, 4 is an insertion hole, 5 is a crankcase, and 6 is a vibration damper.
Claims (1)
の間に間隙を存して挿入された管状の制振体を、
ボルトまたはナツトの締め込みにより圧縮変形さ
せ、ボルト外周面と挿通孔の内壁面とに当接せし
めたことを特徴とするボルト制振装置。1. A tubular damping body that is longer than the bolt insertion hole and inserted with a gap between the bolt and the insertion hole,
A bolt vibration damping device characterized in that the bolt or nut is compressed and deformed by tightening and brought into contact with the outer peripheral surface of the bolt and the inner wall surface of an insertion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13886582A JPS5929833A (en) | 1982-08-10 | 1982-08-10 | Bolt vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13886582A JPS5929833A (en) | 1982-08-10 | 1982-08-10 | Bolt vibration control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5929833A JPS5929833A (en) | 1984-02-17 |
| JPS6321053B2 true JPS6321053B2 (en) | 1988-05-02 |
Family
ID=15231930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13886582A Granted JPS5929833A (en) | 1982-08-10 | 1982-08-10 | Bolt vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5929833A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3616629A1 (en) * | 1986-05-16 | 1987-11-19 | Audi Ag | INTERNAL COMBUSTION ENGINE |
| DE10344987A1 (en) * | 2003-09-27 | 2005-04-21 | Atlas Copco Constr Tools Ab | Device for connecting at least two machine parts to a hammer mechanism |
| JP2008157314A (en) * | 2006-12-21 | 2008-07-10 | Toyota Motor Corp | tightening structure |
| JP4734305B2 (en) * | 2007-09-10 | 2011-07-27 | 日本工機株式会社 | Nut body fixing structure and nut body fixing method |
-
1982
- 1982-08-10 JP JP13886582A patent/JPS5929833A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5929833A (en) | 1984-02-17 |
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