JP2562846Y2 - Laminated washer seal - Google Patents
Laminated washer sealInfo
- Publication number
- JP2562846Y2 JP2562846Y2 JP5824593U JP5824593U JP2562846Y2 JP 2562846 Y2 JP2562846 Y2 JP 2562846Y2 JP 5824593 U JP5824593 U JP 5824593U JP 5824593 U JP5824593 U JP 5824593U JP 2562846 Y2 JP2562846 Y2 JP 2562846Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- tightening
- washer seal
- laminated
- cover member
- 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 - Fee Related
Links
Landscapes
- Bolts, Nuts, And Washers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、締付け具とカバー部材
との間に装着されるワッシャー材に関し、具体的には密
封性及び組付け性に優れ制振特性の極めて高いワッシャ
ーシールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washer material mounted between a fastener and a cover member, and more particularly to a washer seal having excellent sealing and assembling properties and extremely high vibration damping characteristics.
【０００２】[0002]
【従来の技術】従来、エンジンのロッカーカバーとかオ
イルパンの如きカバー部材を装着固定するには、該カバ
ー部材の要所要所に締付け具を配置してカバー部材の周
囲に装着したガスケットを含めて締付け装着をなさしめ
ており、その締付け具の密封とカバー部材の防音防振な
どを図るために該締付け具とカバー部材との間に弾性体
からなるワッシャーシールを挿着している。以下、図面
を参照しつつ詳述する。2. Description of the Related Art Conventionally, in order to mount and fix a cover member such as a rocker cover or an oil pan of an engine, a fastener is disposed at a necessary portion of the cover member and a gasket mounted around the cover member is included. A tightening mounting is performed, and a washer seal made of an elastic body is inserted between the tightening tool and the cover member in order to seal the tightening tool and to prevent sound and vibration of the cover member. Hereinafter, this will be described in detail with reference to the drawings.
【０００３】この構造の多くは、図３に示すように、リ
ング状に形成した弾性体のシール部（１）とこれの上方
に輪形状の金属製ワッシャー（２）を配設してワッシャ
ーシールを構成しており、これに十分な締付け力を与え
てカバー部材（３）のボルト孔（３ａ）を密封すると共
に、該カバー部材（３）の接触部周囲に配置されたガス
ケット（図示していない）に対して強い圧力を働かせし
めていた。[0003] In many cases, as shown in Fig. 3, a ring-shaped elastic seal part (1) and a ring-shaped metal washer (2) are disposed above the seal part (1). A sufficient tightening force is applied to this to seal the bolt hole (3a) of the cover member (3), and a gasket (shown in the drawing) arranged around the contact portion of the cover member (3). No pressure).
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、このよ
うな上方から圧縮されるとシール部（１）が放射状に流
れ変形する横方向の変形を規制し得ないワッシャーシー
ルにあっては、自動車用エンジン組立ライン等での締付
けの自動化された装着をなすに適していない。すなわ
ち、合成ゴム等の弾性体でなるシール部（１）は多少の
硬度の差異はあっても最適な締付け圧力はある一定の巾
を有するものであり、一般的に締付トルク、２０ｋｇｆ
・ｃｍ〜８０ｋｇｆ・ｃｍがその範囲と考えられ、これ
以上の荷重が該シール部（１）に加わるとトルクダウン
（応力緩和）したり過大な横流れ変形によって破壊を招
いたりする。前記自動化組付けラインは残念ながらこの
範囲内の調整が難しく、前記した不都合の理由の一つに
挙げられる。However, in a washer seal which cannot restrict lateral deformation in which the seal portion (1) radially flows and deforms when compressed from above, there is an automobile engine. It is not suitable for automated mounting of tightening on assembly lines. In other words, the sealing portion (1) made of an elastic material such as synthetic rubber has a certain fixed width for the optimum tightening pressure despite a slight difference in hardness, and generally has a tightening torque of 20 kgf.
・ Cm to 80 kgf · cm is considered to be in the range, and when a load more than that is applied to the seal portion (1), torque is reduced (stress relaxation) or excessive lateral flow deformation causes breakage. Unfortunately, the automated assembly line is difficult to adjust within this range, which is one of the reasons for the aforementioned disadvantages.
【０００５】このような不都合を解消するために、図４
に示す実開昭５７ー８３２５４号公報の如くの、シール
部（１）の横流れを防止し得る受皿（４）を持ったワッ
シャーシールが開発されたが、この構造においては粗雑
な締付け作業あるいは過大な締付け圧力により金属製ワ
ッシャー（２）と受皿（４）の位置ずれが起きてお互い
に緩衝したり、該シール部（１）にあっては逃げ場のな
い圧縮によりその弾性を消失してしまうなど新たな問題
が発生している。本考案はこのような欠点に鑑み、応力
緩和を防ぎ防振性を向上せしめると共にシール性能をも
高めたワッシャーシールを提供することを目的としてい
る。In order to eliminate such inconvenience, FIG.
As shown in Japanese Utility Model Laid-Open No. 57-83254, a washer seal having a saucer (4) capable of preventing a lateral flow of the seal portion (1) has been developed. A misalignment between the metal washer (2) and the pan (4) occurs due to an improper tightening pressure, damping each other, and the seal (1) loses its elasticity by compression without escape. A new problem is occurring. The present invention has been made in view of the above-described drawbacks, and has as its object to provide a washer seal that prevents stress relaxation, improves vibration isolation, and also enhances sealing performance.
【０００６】[0006]
【課題を解決するための手段】本考案を図面に基づいて
説明すると、図１、及び図２に示すように、自動車用エ
ンジン等に在るカバー部材（３）の締付けとボルト孔
（３ａ）の密封をなすワッシャーシールであって、金属
環（６）あるいはコーティング層（６ａ）を持つ金属環
（６）からなる芯材（７）を複数個積層し、前記積層さ
れた芯材（７）の周縁部に圧印加工を施しその表面へ凹
み部（８）を形成せしめたことを特徴としている。The present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, tightening of a cover member (3) and a bolt hole (3a) in an automobile engine or the like are performed. A plurality of core members (7) comprising a metal ring (6) or a metal ring (6) having a coating layer (6a), wherein the core member (7) is laminated. Is subjected to coining on the periphery thereof to form a recess (8) on the surface thereof.
【０００７】なお、この凹み部（８）の形成において
は、装着箇所の要求によって、図１に示すように該芯材
（７）の外周側の周縁部に設けるか、あるいは図２の如
く内周側の周縁部に形成せしめる。In the formation of the recessed portion (8), depending on the requirement of the mounting location, the recessed portion (8) is provided on the outer peripheral portion of the core material (7) as shown in FIG. 1, or as shown in FIG. It is formed on the peripheral edge on the peripheral side.
【０００８】[0008]
【作用】本考案は、上記した構造をもって下記に示す優
れた作用をなす。すなわち、本考案の積層ワッシャーシ
ールを構成する芯材（７）は、図１及び図２に示す如く
金属環（６）あるいは合成ゴム等のコーティング層（６
ａ）を持つ金属環（６）からなっており、このため締付
け荷重が大きく、熱的負荷等が加わっても横流れせず、
極めて高いトルク保持力を発揮するものであり、また、
強い機械的強度をもっている。さらに図１及び図２に示
す如く締付け方向に複数重ね合わせることによってその
締付け特性を比例的に向上させ、締付け荷重のバラツキ
に左右されない安定的で良好な圧縮性能と制振性能を発
揮せしめる。The present invention has the following excellent functions with the above structure. That is, as shown in FIGS. 1 and 2, the core material (7) constituting the laminated washer seal of the present invention includes a metal ring (6) or a coating layer (6) of a synthetic rubber or the like.
a) has a metal ring (6) having a large tightening load and does not flow laterally even when a thermal load or the like is applied.
It exhibits extremely high torque holding power, and
Has strong mechanical strength. Further, as shown in FIGS. 1 and 2, by superposing a plurality of pieces in the tightening direction, the tightening characteristics are improved in proportion, and stable and good compression performance and vibration damping performance which are not influenced by the variation of the tightening load can be exhibited.
【０００９】この芯材（７）に対し、図示のように圧印
加工にて凹み部（８）を形成するものであり、前気圧印
加工によって高低部が造形された積層ワッシャーシール
を締付けると、相手部材、例えばボルト（５）とカバー
部材（３）との接触面積は小さくなるがその面圧は逆に
大きくなり、加えて前記凹み部（８）の段差によりバネ
効果が生じトルク保持力を向上させるので、適当とする
締付け圧力の巾を拡大するばかりでなく持てる制振特性
をさらに高める。As shown in the drawing, a recessed portion (8) is formed in the core material (7) by stamping, and when a laminated washer seal whose height is formed by pre-pressure marking is tightened, The contact area between the mating member, for example, the bolt (5) and the cover member (3) is reduced, but the surface pressure is increased, and in addition, a spring effect is generated due to the step of the concave portion (8), and the torque holding force is reduced. As a result, not only the width of the appropriate tightening pressure is increased, but also the vibration suppression characteristics that can be maintained are further enhanced.
【００１０】このとき、芯材（７）の表面に弾性を持っ
た合成ゴムなどからなるコーティング層（６ａ）を形成
する場合、該コーティング層（６ａ）が締付け圧力を柔
軟に受け止め接触部材（各各の芯材７を含む）との有効
なシール性を発揮するものとなる。At this time, when a coating layer (6a) made of an elastic synthetic rubber or the like is formed on the surface of the core material (7), the coating layer (6a) flexibly receives a tightening pressure and receives a contact member (each member). (Including the respective core members 7).
【００１１】[0011]
【実施例】本考案を実施するに、前記凹み部（８）の形
成においては、複数枚重ね合わした芯材（７）へ一対の
ダイに圧力を加え、その外周縁あるいは内周縁を圧縮変
形せしめて一気に造形するのが成形時間も短く容易であ
るが、環形状に打ち抜く時圧縮形成せしめて積層形成す
ることも可能であり、また複数枚重ねて打ち抜くときに
同時に圧印加工を施すこともできるので、要求精度ある
いは要求性能に応じた加工方法を選べば良い。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to carry out the present invention, in forming the recessed portion (8), a pressure is applied to a pair of dies to a plurality of superposed core members (7), and the outer peripheral edge or inner peripheral edge thereof is compressed and deformed. The molding time is short and easy to mold at once, but it is also possible to form by pressing and compressing when punching into a ring shape, and also to perform coining at the same time when multiple sheets are punched out. What is necessary is just to select the processing method according to required accuracy or required performance.
【００１２】なお、前記芯材（７）に設けたコーティン
グ層（６ａ）の表面にグラファイト層（図示せず）を付
着成形することも可能であって、この構造では高い締付
け荷重及び高い熱負荷を伴っても接触部材と粘着せずシ
ール部分の単体性を保ち、締付け力を有効に芯材（７）
へ伝えるので好ましい表面材となる。このグラファイト
層によるシール部分の単体性は、互いの面材が相互に締
付け固着されても各各が物理的に接着されないものであ
り、図３の如くの単体からなった成形品のシール部
（１）と比べ振動の伝達損失がより大きいので優れた制
振性を有する。It is also possible to form a graphite layer (not shown) on the surface of the coating layer (6a) provided on the core material (7), and in this structure, a high tightening load and a high thermal load are required. Core material (7)
It is a preferred surface material because it is transmitted to The individuality of the seal portion by the graphite layer is such that even if the face materials are mutually fastened and fixed, they are not physically adhered to each other, and as shown in FIG. Since vibration transmission loss is larger than that of 1), it has excellent vibration damping properties.
【００１３】この積層ワッシャーシールの装着において
は、前記凹み部（８）を図２に示すように内周側の周縁
部に設けると、その圧印加工によって内周穴へコーティ
ング層（６ａ）がはみ出し形成され（図示せず）、これ
がボルト（５）を一体化する繋ぎ材となり得る別の作用
効果を見せる。In mounting the laminated washer seal, if the recessed portion (8) is provided on the inner peripheral side as shown in FIG. 2, the coating layer (6a) protrudes into the inner peripheral hole by coining. Formed (not shown), which provides another effect that can be a tether to integrate the bolt (5).
【００１４】[0014]
【考案の効果】上記のような構成によって、以下に示す
優れた効果が得られる。本考案での積層ワッシャーシー
ルは、高い面圧の保持により締付け荷重が大きく、高い
トルク保持力を持って、締付け初期の軸力を保ちシール
面圧を低下させない。従って、増し締め等の後手間の必
要がなく保守管理性に優れる。その成形においては、基
となる芯部分を打ち抜き造形せしめると共に圧印加工を
施すだけで完成せしめることができるので極めて低価格
で大量生産することが可能となる。According to the above configuration, the following excellent effects can be obtained. The laminated washer seal according to the present invention has a large tightening load due to holding of a high surface pressure, has a high torque holding force, maintains an axial force at the initial stage of tightening, and does not lower the seal surface pressure. Therefore, there is no need for extra work such as retightening, and the maintenance is excellent. In the molding, since the core can be completed only by punching and shaping the base core portion and performing the coining process, mass production can be performed at an extremely low price.
【００１５】[0015]
【図１】本考案の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本考案の他の実施例を示す断面図である。FIG. 2 is a sectional view showing another embodiment of the present invention.
【図３】本考案を使用しない従来の構造を示す断面図で
ある。FIG. 3 is a sectional view showing a conventional structure that does not use the present invention.
【図４】本考案を使用しない従来の他の構造を示す断面
図である。FIG. 4 is a sectional view showing another conventional structure that does not use the present invention.
【００１６】[0016]
１ シール部 ２ 金属製ワッシャー ３ カバー部材 ３ａ ボルト孔 ５ ボルト ６ 金属環 ６ａ コーティング層 ７ 芯材 ８ 凹み部 DESCRIPTION OF SYMBOLS 1 Seal part 2 Metal washer 3 Cover member 3a Bolt hole 5 Bolt 6 Metal ring 6a Coating layer 7 Core material 8 Depression
Claims (2)
た金属環からなる芯材を複数個積層してなる積層ワッシ
ャーシールにおいて、前記積層された芯材の周縁部に圧
印加工を施し表面へ凹み部を形成せしめたことを特徴と
する積層ワッシャーシール。1. A laminated washer seal comprising a plurality of cores made of a metal ring or a metal ring having a coating layer formed thereon. In a laminated washer seal, the periphery of the laminated core material is stamped to form a recess on the surface. A laminated washer seal characterized by being formed.
縁部に形成されたことを特徴とする請求項１の積層ワッ
シャーシール。2. The laminated washer seal according to claim 1, wherein the concave portion is formed in a peripheral portion on an inner peripheral side or an outer peripheral side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5824593U JP2562846Y2 (en) | 1993-10-01 | 1993-10-01 | Laminated washer seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5824593U JP2562846Y2 (en) | 1993-10-01 | 1993-10-01 | Laminated washer seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0723819U JPH0723819U (en) | 1995-05-02 |
| JP2562846Y2 true JP2562846Y2 (en) | 1998-02-16 |
Family
ID=13078741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5824593U Expired - Fee Related JP2562846Y2 (en) | 1993-10-01 | 1993-10-01 | Laminated washer seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562846Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5977096B2 (en) * | 2012-06-22 | 2016-08-24 | 株式会社Ihi | Combined structure |
-
1993
- 1993-10-01 JP JP5824593U patent/JP2562846Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723819U (en) | 1995-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |