JPS642976Y2 - - Google Patents
Info
- Publication number
- JPS642976Y2 JPS642976Y2 JP1983060066U JP6006683U JPS642976Y2 JP S642976 Y2 JPS642976 Y2 JP S642976Y2 JP 1983060066 U JP1983060066 U JP 1983060066U JP 6006683 U JP6006683 U JP 6006683U JP S642976 Y2 JPS642976 Y2 JP S642976Y2
- Authority
- JP
- Japan
- Prior art keywords
- shield plate
- axis
- bearing
- outer ring
- outer periphery
- 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
- 238000007789 sealing Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000272201 Columbiformes Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
【考案の詳細な説明】
この考案は、軸受の内外輪間に装置されて転動
体装着部を密封する軸受密封装置に関する。[Detailed Description of the Invention] This invention relates to a bearing sealing device that is installed between the inner and outer rings of a bearing and seals the rolling element mounting portion.
この種の軸受密封装置として、ミニチユア軸受
や薄肉レースの玉軸受などには、従来より第１図
や第２図に示す構造のものが用いられている。 As this type of bearing sealing device, a structure shown in FIGS. 1 and 2 has conventionally been used for miniature bearings, ball bearings with thin races, and the like.
第１図に示す密封装置は、外周部において裏面
側に向けて凹陥する断面形状が表裏非対称の環状
シールド板１を、その外周部が外輪２の端部内周
面に形成された段付溝部２ａに係入するようにし
て外輪２・内輪３間に嵌め込み、ついでプラスチ
ツクなどの可とう性素材からなる止め輪４を、前
記環状シールド板１の外周部表面の凹陥部と段付
溝部２ａで囲まれる凹部に圧入して、段付溝部２
ａの内側面と止め輪４とで環状シールド板１の外
周部を挾むことにより、環状シールド板１を固着
したものである。 The sealing device shown in FIG. 1 includes an annular shield plate 1 whose outer periphery is recessed toward the back side and whose cross-sectional shape is asymmetric between the front and back, and whose outer periphery is a stepped groove 2a formed on the inner periphery of an end of an outer ring 2. Then, the retaining ring 4 made of a flexible material such as plastic is surrounded by the recessed part and the stepped groove part 2a on the outer peripheral surface of the annular shield plate 1. Stepped groove 2
The annular shield plate 1 is fixed by sandwiching the outer periphery of the annular shield plate 1 between the inner surface of a and the retaining ring 4.
一方、第２図に示す密封装置では、心金５を封
入したゴム製の環状シールド板６を用い、ゴム素
材のみからなる外周部を外輪２′の溝部２′ａへ弾
性係合させることにより、この環状シールド板６
を外輪２′・内輪３′間に装着している。 On the other hand, in the sealing device shown in FIG. 2, a rubber annular shield plate 6 in which a mandrel 5 is enclosed is used, and the outer peripheral part made only of rubber material is elastically engaged with the groove 2'a of the outer ring 2'. , this annular shield plate 6
is installed between the outer ring 2' and the inner ring 3'.
ところが第１図に示す従来例では、環状シール
ド板１のほか止め輪４を必要とするので、部品点
数が多くなるとともに、その装着処理におて環状
シールド板１の取付けと止め輪４の圧入の２工程
を要し、作業性が悪くなるという欠点を有する。
さらに、前記の止め輪４は使用中に外れるおそれ
があるほか、環状シールド板１はその断面形状が
表裏非対称であるため、自動組立ラインなどでの
連続組立作業では、環状シールド板１の表裏を所
定向きに揃えなければならず、作業工程が複雑に
なるなどの問題点も有する。 However, in the conventional example shown in FIG. 1, a retaining ring 4 is required in addition to the annular shield plate 1, so the number of parts increases, and the installation process involves mounting the annular shield plate 1 and press-fitting the retaining ring 4. It requires two steps, which has the disadvantage of poor workability.
Furthermore, there is a risk that the retaining ring 4 may come off during use, and the annular shield plate 1 has an asymmetrical cross-sectional shape, so during continuous assembly work on an automatic assembly line, the front and back sides of the annular shield plate 1 must be There are also problems such as having to align them in a predetermined direction, which complicates the work process.
また、第２図に示す密封装置にあつては、構成
部材は環状シールド板６のみで足りるので部品点
数に関しては問題ないが、この場合にも環状シー
ルド板６の断面形状は表裏非対称であるため、自
動組立ラインなどによる連続組立作業では、その
表裏を所定向きに揃えなければならず、結局作業
性を悪くすることになる。 In addition, in the case of the sealing device shown in FIG. 2, only the annular shield plate 6 is required as a component, so there is no problem in terms of the number of parts, but in this case as well, the cross-sectional shape of the annular shield plate 6 is asymmetric between the front and back. In continuous assembly work using an automatic assembly line, etc., the front and back sides must be aligned in a predetermined direction, which ultimately impairs work efficiency.
このほか、内外輪間に環状シールド板を直接か
しめる構成のものも知られるが、ミニチユア軸受
や薄肉玉軸受などの場合には、このようなかしめ
処理に伴い外周の真円度が狂い大きい誤差が生じ
るという欠点を有する。 In addition, there are also known configurations in which an annular shield plate is caulked directly between the inner and outer rings, but in the case of miniature bearings or thin-walled ball bearings, the roundness of the outer periphery is distorted due to this type of caulking process, resulting in large errors. This has the disadvantage of causing
この考案は、従来例における如上の欠点を解消
し、組立作業性および密封効果に優れ、ミニチユ
ア軸受、薄肉軸受などに適用した場合にも装着に
伴い外周真円度を狂わせることなく十分な装着強
度を得ることのできる軸受密封装置を提供するこ
とを目的とするものである。 This invention eliminates the above-mentioned drawbacks of conventional examples, has excellent assembly workability and sealing effect, and provides sufficient mounting strength even when applied to miniature bearings, thin-walled bearings, etc., without disrupting the roundness of the outer periphery due to mounting. It is an object of the present invention to provide a bearing sealing device that can obtain the following.
この考案の一実施例を、第３図および第４図に
基づき以下に詳述する。 An embodiment of this invention will be described in detail below with reference to FIGS. 3 and 4.
この実施例の軸受密封装置は、少なくとも外周
部がゴム素材のみからなるように心金７をゴム素
材８で被覆した表裏対称形の断面をなす心金付き
環状シールド板９を形成し、その外周部を外輪１
０の端部内周面に形成された溝部１０ａに弾性係
合させることにより、外輪１０・内輪１１間にシ
ールド板９を装着して、軸受内の転動体保持部材
を密封すべくしたものである。 The bearing sealing device of this embodiment includes a mandrel-equipped annular shield plate 9 having a symmetrical cross-section, in which a mandrel 7 is covered with a rubber material 8 so that at least the outer periphery thereof is made only of a rubber material; Outer ring 1
A shield plate 9 is installed between the outer ring 10 and the inner ring 11 by elastically engaging the groove 10a formed on the inner peripheral surface of the end of the bearing, thereby sealing the rolling element holding member in the bearing. .
シールド板９のうち、ゴム素材８のみからなる
外周部は、第４図に拡大して示すような形状とさ
れている。 The outer peripheral portion of the shield plate 9, which is made only of the rubber material 8, has a shape as shown in an enlarged view in FIG.
すなわち、シールド板９の外周部は、その周縁
より少しだけ内周側（半径方向内側）に寄つた所
定辺域の表裏部分に、突条部９ａ，９ａを周設し
てある。 That is, the outer circumferential portion of the shield plate 9 has protrusions 9a, 9a provided around the front and back portions of a predetermined side area slightly closer to the inner circumferential side (inward in the radial direction) than the circumferential edge.
該突条部９ａ，９ａは、シールド板９の表裏両
側に所定厚みを有するとともに、その先端面を、
軸受の軸線に対して直角な軸直角平面１２，１２
としてある。 The protrusions 9a, 9a have a predetermined thickness on both the front and back sides of the shield plate 9, and their tip surfaces are
Axis-perpendicular planes 12, 12 perpendicular to the axis of the bearing
It is as follows.
これにより、上記シールド板９の外周部の周縁
形状は、ハツト形をなすように、つまりその中間
部において、シールド板９の他部厚みに相当する
幅域だけが外周側へ局部的に突出して、突出部９
ｂとなるように形成している。 As a result, the peripheral edge of the shield plate 9 is formed in a pigeon shape, that is, in the middle part, only a width area corresponding to the thickness of the other part of the shield plate 9 protrudes locally toward the outer periphery.
It is formed so as to be b.
したがつて、上記シールド板９の表裏両面のい
ずれが内向きになつても、一方の突条部９ａの軸
直角平面１２が、外輪溝部１０ａの軸直角平面状
とされた内側面１３に弾接するとともに、上記外
周部の周縁の突出部９ｂが、上記外輪溝部１０ａ
へ十分弾性係合しうるようにしている。 Therefore, even if both the front and back sides of the shield plate 9 face inward, the axis-perpendicular plane 12 of one of the protrusions 9a will be resilient against the axis-perpendicular plane 13 of the outer ring groove 10a. At the same time, the protruding portion 9b on the peripheral edge of the outer circumferential portion is in contact with the outer ring groove portion 10a.
It is designed so that it can be sufficiently elastically engaged.
心金７は、その片面が露出するようにシールド
板９の中央より片面側へ偏らせているので、軸受
への装着向きによつては、心金７の露出面が表側
に向いたり裏側に向いたりするが、いずれの向き
であつても装着上および密封効果上において差異
は生じない。 The core metal 7 is biased toward one side from the center of the shield plate 9 so that one side of the core metal 7 is exposed, so depending on the orientation of the bearing, the exposed surface of the core metal 7 may face the front side or face the back side. However, there is no difference in mounting or sealing effect either way.
以上詳述したように、本考案によれば、以下に
列挙するような種々の効果が得られ、組立作業性
および密封効果に優れ、特にミニチユア軸受、薄
肉軸受などに適用する場合にも装着に伴い外周真
円度を狂わせることなく、かつ十分な装着強度を
得ることのできる軸受密封装置を提供することが
できる。 As detailed above, according to the present invention, various effects as listed below can be obtained, and it is excellent in assembly workability and sealing effect, and is particularly easy to install when applied to miniature bearings, thin-walled bearings, etc. Accordingly, it is possible to provide a bearing sealing device that can obtain sufficient mounting strength without disrupting the roundness of the outer periphery.
(イ) 心金付き環状シールド板は、心金が弾性素材
で被覆されてなるとともに、表裏対称形の断面
形状とされているから、軸受への装着作業にお
いてその表裏を確認する必要がなく、自動組立
ラインなどでシールド板の表裏を所定向きに揃
える工程を省略することができ、作業性が向上
する。(b) The annular shield plate with mandrel is made of a mandrel covered with an elastic material and has a symmetrical cross-sectional shape on the front and back, so there is no need to check the front and back of the shield plate when installing it on the bearing. The process of aligning the front and back of the shield plate in a predetermined direction on an automatic assembly line can be omitted, improving work efficiency.
(ロ) 心金付き環状シールド板の少なくとも外周部
が弾性素材のみからなるため、外輪溝部への係
合が容易でかつ密着性もよく、装着作業が容易
になるとともに装着強度も十分で、密封効果も
向上する。(b) At least the outer periphery of the annular shield plate with mandrel is made of only elastic material, so it is easy to engage with the outer ring groove and has good adhesion, making the installation process easy and providing sufficient installation strength to ensure a tight seal. It also improves effectiveness.
(ハ) シールド板の外周部は、その突条部の軸直角
平面が外輪溝部の軸直角平面に当接して、上記
外輪溝部に弾性係合されているから、ミニチユ
ア軸受や薄肉軸受などに適用した場合にも、装
着にかしめ処理を要する従来例においてみられ
るように軸受の外周真円度を狂わせることもな
い。(C) The outer peripheral part of the shield plate is elastically engaged with the outer ring groove by the axis-perpendicular plane of the protruding part coming into contact with the axis-perpendicular plane of the outer ring groove, making it suitable for miniature bearings, thin-walled bearings, etc. Even in this case, the roundness of the outer periphery of the bearing will not be disturbed, unlike in conventional examples that require caulking for installation.
(ニ) シールド板の外周部に形成した突条部は、シ
ールド板の表裏両側に所定の軸方向厚みを有す
るとともに、その先端面が軸直角平面とされ、
一方、軸受の外輪溝部の内側面が軸直角平面と
されており、これにより上記突条部の軸直角平
面が上部外輪溝部の軸直角平面に当接するよう
にしたので、シールド板装着時のシールド板と
軸受との直角度が正常に保たれる。(d) The protrusion formed on the outer periphery of the shield plate has a predetermined thickness in the axial direction on both the front and back sides of the shield plate, and its tip surface is a plane perpendicular to the axis,
On the other hand, the inner surface of the outer ring groove of the bearing is a plane perpendicular to the axis, so that the plane perpendicular to the axis of the protrusion comes into contact with the plane perpendicular to the axis of the upper outer ring groove. The perpendicularity between the plate and the bearing is maintained normally.
(ホ) さらに、シールド板が心金付きの構造とされ
ているので、軸受の熱膨張や熱収縮に対して
も、軸受の熱膨張係数と上記心金の熱膨張とが
一致し、これにより、軸受の熱膨張や収縮に対
して、シールド板も追従することができる。そ
の結果、シールド板が異常変形したり、軸受か
ら外れるというような不都合が完全に防止でき
る。(e) Furthermore, because the shield plate is structured with a mandrel, the thermal expansion coefficient of the bearing matches the thermal expansion of the mandrel, allowing the shield plate to follow the thermal expansion and contraction of the bearing. As a result, problems such as the shield plate being abnormally deformed or coming off the bearing can be completely prevented.
第１図および第２図はそれぞれ従来例を示す断
面図、第３図はこの考案の一実施例を示す断面
図、第４図はその要部拡大断面図である。
７……心金、８……ゴム素材（弾性素材）、９
……心金付き環状シールド板、９ａ……突条部、
９ｂ……ハツト形突出部、１０……外輪、１０ａ
……薄部、１１……内輪、１２……突条部の軸直
角平面、１３……外輪溝部の内側面（軸直角平
面）。
1 and 2 are sectional views showing a conventional example, FIG. 3 is a sectional view showing an embodiment of this invention, and FIG. 4 is an enlarged sectional view of a main part thereof. 7... Core metal, 8... Rubber material (elastic material), 9
...Annular shield plate with mandrel, 9a...Protrusion portion,
9b...Hat-shaped protrusion, 10...Outer ring, 10a
... Thin portion, 11... Inner ring, 12... Axis-perpendicular plane of protrusion, 13... Inner surface (axis-perpendicular plane) of outer ring groove.
Claims (1)
着されてなるものであつて、 前記シールド板は、心金が弾性素材で被覆され
てなるとともに、表裏対称形の断面形状とされ、 該シールド板の少なくとも外周部が前記弾性素
材で形成されるとともに、該外周部の周縁より内
周側の表裏部分に突条部が周設され、 該突条部は、前記シールド板の表裏両側に所定
の軸方向厚みを有するとともに、その先端面が軸
直角平面とされ、 一方、前記軸受の外輪溝部の内側面が軸直角平
面とされ、 前記シールド板の外周部は、前記突条部の軸直
角平面が前記外輪溝部の軸直角平面に当接して、
前記外輪溝部に弾性係合されていることを特徴と
する密封装置。[Claims for Utility Model Registration] A ring-shaped shield plate with a cored metal is installed between the inner and outer rings of a bearing, and the shield plate has a cored metal covered with an elastic material, and has a symmetrical shape on the front and back. At least the outer periphery of the shield plate is formed of the elastic material, and protrusions are provided around the front and back portions of the outer periphery on the inner periphery side of the outer periphery, and the protrusions are: The shield plate has a predetermined thickness in the axial direction on both the front and back sides, and its tip face is a plane perpendicular to the axis, while the inner surface of the outer ring groove of the bearing is a plane perpendicular to the axis, and the outer peripheral part of the shield plate is , an axis-perpendicular plane of the protruding portion abuts an axis-perpendicular plane of the outer ring groove,
A sealing device characterized in that the sealing device is elastically engaged with the outer ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6006683U JPS59164828U (en) | 1983-04-20 | 1983-04-20 | bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6006683U JPS59164828U (en) | 1983-04-20 | 1983-04-20 | bearing sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59164828U JPS59164828U (en) | 1984-11-05 |
| JPS642976Y2 true JPS642976Y2 (en) | 1989-01-25 |
Family
ID=30190306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6006683U Granted JPS59164828U (en) | 1983-04-20 | 1983-04-20 | bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164828U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917323B2 (en) * | 1972-12-29 | 1984-04-20 | 松下電器産業株式会社 | Method for determining the ability of piezoelectric devices for igniters |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917323U (en) * | 1982-07-26 | 1984-02-02 | 日亜精密工業株式会社 | Sealing plate for bearings |
-
1983
- 1983-04-20 JP JP6006683U patent/JPS59164828U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917323B2 (en) * | 1972-12-29 | 1984-04-20 | 松下電器産業株式会社 | Method for determining the ability of piezoelectric devices for igniters |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59164828U (en) | 1984-11-05 |
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