JPS6212906Y2 - - Google Patents
Info
- Publication number
- JPS6212906Y2 JPS6212906Y2 JP1982113826U JP11382682U JPS6212906Y2 JP S6212906 Y2 JPS6212906 Y2 JP S6212906Y2 JP 1982113826 U JP1982113826 U JP 1982113826U JP 11382682 U JP11382682 U JP 11382682U JP S6212906 Y2 JPS6212906 Y2 JP S6212906Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- outer ring
- insertion groove
- bearing
- sealing
- 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 54
- 230000037431 insertion Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 19
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 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
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
-
- 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)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
【考案の詳細な説明】
本考案はシール型ベアリングに使用する封板の
改良に係り、主に所謂ミニチユアーベアリングに
使用する合成樹脂製封板に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a sealing plate used in a sealed type bearing, and mainly relates to a synthetic resin sealing plate used in a so-called miniature bearing.
近年、事務用機器や家電製品等の分野に於いて
は、製品の小形化とも相俟つてこれに使用するベ
アリングも益々小形化される傾向にあり、外輪の
外径が３〜10mm位いの所謂超小形のシール型ベア
リングが数多く利用されている。 In recent years, in the field of office equipment and home appliances, the bearings used in these products have become smaller and smaller, and the outer diameter of the outer ring is about 3 to 10 mm. Many so-called ultra-small sealed bearings are in use.
第１図及び第２図は、従前のこの種シール型ベ
アリングの一部縦断面図であり、前者に於いて
は、外輪１の端部内側に封板挿着溝２を形成し、
ここに薄鋼板製の封板３を挿着したあとイーリン
グ４を嵌合して封板３を固定することにより、外
輪１と内輪５間のボール６側空〓Ｇを密封するよ
うにしている。 1 and 2 are partial longitudinal cross-sectional views of a conventional sealed type bearing of this type. In the former, a sealing plate insertion groove 2 is formed inside the end of the outer ring 1,
By inserting a sealing plate 3 made of a thin steel plate here and then fitting an ear ring 4 to fix the sealing plate 3, the space G on the side of the ball 6 between the outer ring 1 and the inner ring 5 is sealed. There is.
又、後者にあつては、外輪１の封板挿着溝２の
内面を曲面状に形成すると共に、封板３の外周縁
をこれに合致する形状に仕上げ、封板３の弾性力
によりこれを溝２内へ嵌着するようにしている。 In the latter case, the inner surface of the sealing plate insertion groove 2 of the outer ring 1 is formed into a curved shape, and the outer peripheral edge of the sealing plate 3 is finished in a shape that matches this, and the elastic force of the sealing plate 3 is used to curve the inner surface of the sealing plate insertion groove 2. is fitted into the groove 2.
而して、外輪１の半径Ｒが1.5mm〜２mm位いの
超小形ベアリングでは、外輪１の肉厚T1が0.4〜
0.5mm、封板挿着溝２の深さＤが0.15〜0.2mm、封
板３の肉厚T2が0.15〜0.2mm位いとなり、夫々極
めて肉厚の小さなものとなる。その結果、例えば
第１図に於いて、封板３を固定するため挿着溝２
内へイーリング４を挿入したり、或いは第２図に
於いて、封板３の端部を挿着溝２内へ押し込んだ
りした際に、外輪１の端部に無理な力が加わつて
これが外方へ彎曲し、外輪１が損傷するという事
故が屡々発生する。 Therefore, in a micro-sized bearing where the radius R of the outer ring 1 is approximately 1.5 mm to 2 mm, the wall thickness T 1 of the outer ring 1 is 0.4 to 2 mm.
0.5 mm, the depth D of the sealing plate insertion groove 2 is about 0.15 to 0.2 mm, and the wall thickness T 2 of the sealing plate 3 is about 0.15 to 0.2 mm, each of which is extremely small. As a result, for example, in FIG. 1, the insertion groove 2 is
When inserting the ear ring 4 into the inner ring or pushing the end of the sealing plate 3 into the insertion groove 2 as shown in FIG. 2, excessive force is applied to the end of the outer ring 1. Accidents often occur in which the outer ring 1 is damaged by bending outward.
又、鋼板製の封板３を封板挿着溝２内へ自動挿
入する場合には、予かじめ封板３を一定の表・裏
関係に揃えておく必要があり、特に、イーリング
４を使わずに封板端部を直接挿着溝２内へ嵌着す
る場合には、封板３の表・裏が逆のであれば挿着
溝２への緊密な嵌着が不可能となる。 In addition, when automatically inserting the sealing plate 3 made of a steel plate into the sealing plate insertion groove 2, it is necessary to align the sealing plate 3 in a certain front-back relationship in advance. When fitting the end of the sealing plate directly into the insertion groove 2 without using the sealing plate 3, if the front and back sides of the sealing plate 3 are reversed, it will not be possible to fit tightly into the insertion groove 2. .
然し乍ら、多数の封板３をその表・裏関係を揃
えて整理することは極めて手数のかかることであ
り、且つ全ての封板３を誤まり無く完全に揃える
ことは不可能である。尚、封板３の自動揃え機も
開発されつつあるが、未だ完全な自動機は出現し
ておらず、然かも極めて高価なものとなる。その
結果、封板３の揃えミスに起因する不良製品が多
発することになり、製品品質の管理上様々な問題
を生じている。 However, it is very time-consuming to arrange a large number of sealing plates 3 so that their front and back sides are aligned, and it is impossible to completely align all the sealing plates 3 without making any mistakes. Incidentally, an automatic aligning machine for the sealing plates 3 is being developed, but a completely automatic machine has not yet appeared, and furthermore, it is extremely expensive. As a result, many defective products are produced due to misalignment of the sealing plates 3, resulting in various problems in product quality management.
本考案は、小形シールベアリングに於ける上述
の如き諸問題の解決を課題とするものであり、封
板を合成樹脂製とすると共に表・裏対称な形状と
し、封板自体の弾性力によりこれを挿入溝内へ支
持固定することにより、封板挿着時に於ける外輪
の損傷の防止や、封板の表・裏揃え作業の省略を
図ることを目的とするものである。 The purpose of this invention is to solve the above-mentioned problems in small sealed bearings.The sealing plate is made of synthetic resin and has a symmetrical shape on the front and back. By supporting and fixing the outer ring in the insertion groove, the purpose is to prevent damage to the outer ring when inserting the sealing plate and to omit the work of aligning the front and back sides of the sealing plate.
本考案は、弾性を有する合成樹脂製の薄い鍔体
の外周部に、断面視に於いて該鍔体の半径方向の
中心線に対して左右対称な台形状の突出部を形成
したことを基本構成とするものであり、当該構成
とすることによつて封板の表・裏揃え作業が不要
となると共に、外輪を挿着溝内へ嵌着するに際し
ても無理な応力により外輪に損傷を生ずることが
皆無となる。 The basic idea of the present invention is that a trapezoidal protrusion is formed on the outer periphery of a thin flanged body made of elastic synthetic resin, which is symmetrical with respect to the radial center line of the flanged body when viewed in cross section. This configuration eliminates the need to align the front and back sides of the sealing plate, and also prevents damage to the outer ring due to excessive stress when fitting the outer ring into the insertion groove. There will be no such thing.
以下、第３図乃至第７図に示す本考案の一実施
例に基づいてその詳細を説明する。尚、第１図及
び第２図と同じ部位若しくは部材には、同一参照
番号を使用する。 Hereinafter, the details will be explained based on an embodiment of the present invention shown in FIGS. 3 to 7. Note that the same reference numbers are used for the same parts or members as in FIGS. 1 and 2.
第３図は本考案の第１実施例に係るベアリング
用封板の一部を断面した正面図であり、第４図及
び第５図は当該封板をベアリングに適用した場合
の部分断面図である。第３図乃至第５図を参照し
て、封板７は所謂エンジニヤプラスチツクの一体
成形によつて形成されており、極く薄い鍔状体７
ａの外周縁には、該鍔状体の直径方向の中心線Ｌ
に対して左右対称な台形の突出部７ｂが形成され
ている。尚、外輪１の半径Ｒが1.5mm〜２mm位い
の場合には、前記鍔状体７ａの厚さは0.2〜0.3mm
位いとなる。 FIG. 3 is a partially sectional front view of the sealing plate for a bearing according to the first embodiment of the present invention, and FIGS. 4 and 5 are partial sectional views of the sealing plate applied to a bearing. be. Referring to FIGS. 3 to 5, the sealing plate 7 is formed by integral molding of so-called engineered plastic, and has an extremely thin brim-shaped body 7.
At the outer peripheral edge of a, there is a center line L in the diametrical direction of the flanged body.
A trapezoidal protrusion 7b is formed which is symmetrical to the left and right sides. In addition, when the radius R of the outer ring 1 is about 1.5 mm to 2 mm, the thickness of the brim 7a is 0.2 to 0.3 mm.
It becomes rank.
外輪１の端部内側面には、第４図及び第５図に
示す如き略逆Ｖ字形状の封板挿着溝２が形成され
ており、封板７を外方より当てがつて内方へ押し
込むことにより、封板７はその弾性の故に無理な
く、然かも極めて円滑且つ緊密に挿着溝２内へ嵌
着されることになる。即ち、封板７外周の台形突
出部７ｂの両傾斜壁面７b′，７b′が前記封板挿着
溝２の両側壁面２ａ，２ａへ弾性接当し、挿着溝
２の最奥部には空間部２ｂが形成される。その結
果、封板７の弾性力は矢印イ，イ方向に作用する
ことになり、外輪１を矢印ロ方向へ彎曲せしめる
応力が小さくなる。 A substantially inverted V-shaped sealing plate insertion groove 2 as shown in FIGS. 4 and 5 is formed on the inner surface of the end of the outer ring 1, and the sealing plate 7 is applied from the outside and inserted inward. By pushing in, the sealing plate 7 is fitted into the insertion groove 2 very smoothly and tightly due to its elasticity. That is, both inclined wall surfaces 7b', 7b' of the trapezoidal protrusion 7b on the outer periphery of the sealing plate 7 come into elastic contact with both side wall surfaces 2a, 2a of the sealing plate insertion groove 2, and the innermost part of the insertion groove 2 is A space 2b is formed. As a result, the elastic force of the sealing plate 7 acts in the directions of arrows A and A, and the stress that causes the outer ring 1 to bend in the direction of arrow B becomes smaller.
第６図及び第７図は、本考案の他の実施例に係
る封板を示すものであり、第６図では鍔状体７ａ
の外周縁をテーパ面とし、その肉厚を漸減する構
成としている。又、第７図では鍔状体７ａの外周
部の両側面に凹溝８を形成しており、外輪１の封
板挿着溝２内へ封板７を挿着するときに、その先
端突出部７ｂの両側部を矢印方向へ彎曲自在とす
ることにより、より無理なく挿着溝内へ封板７を
挿着し得る様に構成している。 6 and 7 show sealing plates according to other embodiments of the present invention, and in FIG. 6, the brim-like body 7a is
The outer peripheral edge is a tapered surface, and the thickness thereof is gradually reduced. In addition, in FIG. 7, grooves 8 are formed on both sides of the outer periphery of the brim-like body 7a, and when the sealing plate 7 is inserted into the sealing plate insertion groove 2 of the outer ring 1, the protruding tip thereof By making both sides of the portion 7b bendable in the direction of the arrow, the sealing plate 7 can be inserted into the insertion groove more easily.
本願考案にあつては、前述の如く封板７を弾性
を有する合成樹脂材によつて形成すると共に、そ
の形状を半径方向の中心線Ｌに対して左右対称な
形状としているため、封板挿着溝２内へも外方よ
り軽く押すだけで簡単且つ堅固に挿着することが
でき、然かも一旦挿着してしまえばその弾性の故
に容易に脱落することはない。その結果、封板挿
着時の外輪の損傷が皆無となると共にイーリング
等の係止用部材も不要となり、極めて好都合であ
る。 In the present invention, as described above, the sealing plate 7 is made of an elastic synthetic resin material, and its shape is symmetrical with respect to the radial center line L, so that the sealing plate can be inserted. It can be easily and firmly inserted into the mounting groove 2 by simply pressing lightly from the outside, and once inserted, it will not easily fall off due to its elasticity. As a result, there is no damage to the outer ring when the sealing plate is inserted, and there is no need for a locking member such as an ear ring, which is extremely convenient.
又、封板７は中心線Ｌに対して左右対称な形状
となつているため、外輪への挿着時にその表・裏
を考慮する必要は全く無い。その結果、従前の様
に封板７を一定の表・裏関係に揃えることが不要
となり、これを要する手数を省けると共に封板の
不揃いによる不良製品の発生も無くなり、ベアリ
ング製造コストの大幅な低減を図り得る。 Furthermore, since the sealing plate 7 has a symmetrical shape with respect to the center line L, there is no need to consider its front and back sides when inserting it into the outer ring. As a result, it is no longer necessary to align the sealing plates 7 in a certain front/back relationship as in the past, which saves time and effort, and also eliminates the occurrence of defective products due to uneven sealing plates, significantly reducing bearing manufacturing costs. can be achieved.
更に、第７図の様に凹溝８，８を設けた場合に
は、封板７の挿着がより一層円滑に行えることに
なり、作業能率が向上する。そのうえ、封板７の
嵌着によつて外輪１に作用する応力が、外輪１に
対して垂直方向に作用しないため、封板７の挿着
によつて外輪１の外周縁が外側へ彎曲するような
こともない。 Furthermore, when grooves 8, 8 are provided as shown in FIG. 7, the sealing plate 7 can be inserted even more smoothly, improving work efficiency. Furthermore, since the stress that is applied to the outer ring 1 due to the fitting of the sealing plate 7 does not act on the outer ring 1 in a direction perpendicular to the outer ring 1, the outer peripheral edge of the outer ring 1 is curved outward due to the fitting of the sealing plate 7. There is no such thing.
本願考案は上述の通り、秀れた実用的効用を有
するものである。 As mentioned above, the present invention has excellent practical utility.
第１図及び第２図は、従前のシール形ベアリン
グの部分縦断面図である。第３図は、本考案の第
１実施例に係るベアリング用封板の一部縦断正面
図であり、第４図及び第５図は本考案に係る封板
を挿着したベアリングの部分縦断面図である。第
６図及び第７図は、本考案の他の実施例に係るベ
アリング用封板の一部縦断正面図である。
１……外輪、２……封板挿着溝、５……内輪、
７……封板、７ａ……鍔状体、７ｂ……突出部、
８……凹溝、Ｌ……中心線。
1 and 2 are partial vertical cross-sectional views of conventional sealed bearings. FIG. 3 is a partial vertical cross-sectional front view of a bearing sealing plate according to the first embodiment of the present invention, and FIGS. 4 and 5 are partial longitudinal cross-sectional views of a bearing in which the sealing plate according to the present invention is inserted. It is a diagram. 6 and 7 are partially longitudinal sectional front views of a bearing sealing plate according to another embodiment of the present invention. 1... Outer ring, 2... Sealing plate insertion groove, 5... Inner ring,
7... Seal plate, 7a... Flange-shaped body, 7b... Protrusion part,
8... Concave groove, L... Center line.
Claims (1)
７ａの外周部に、断面視に於いて該鍔状体７ａの
厚みの中央を通る半径方向の中心線Ｌに対して左
右対称な台形状の突出部７ｂを一体的に形成する
と共に、ベアリングの外輪１に形成した略逆Ｖ字
形の封板挿着溝２の両側壁面２ａへ、前記台形状
突出部７ｂの両傾斜壁面７b′を弾性接当させて外
輪１へ挿着固定することを特徴とするベアリング
用封板。 On the outer periphery of the flanged body 7a made of a thin plate made of elastic synthetic resin, there is a trapezoidal shape that is symmetrical in cross section with respect to the radial center line L passing through the center of the thickness of the flanged body 7a. The protruding portion 7b is integrally formed, and both inclined wall surfaces 7b' of the trapezoidal protruding portion 7b are elastically connected to both side wall surfaces 2a of a substantially inverted V-shaped sealing plate insertion groove 2 formed on the outer ring 1 of the bearing. A sealing plate for a bearing, characterized in that it is inserted and fixed to an outer ring 1 by touching it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11382682U JPS5917323U (en) | 1982-07-26 | 1982-07-26 | Sealing plate for bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11382682U JPS5917323U (en) | 1982-07-26 | 1982-07-26 | Sealing plate for bearings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5917323U JPS5917323U (en) | 1984-02-02 |
| JPS6212906Y2 true JPS6212906Y2 (en) | 1987-04-03 |
Family
ID=30263347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11382682U Granted JPS5917323U (en) | 1982-07-26 | 1982-07-26 | Sealing plate for bearings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5917323U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164828U (en) * | 1983-04-20 | 1984-11-05 | 光洋精工株式会社 | bearing sealing device |
| JP2002364654A (en) * | 2001-06-07 | 2002-12-18 | Koyo Seiko Co Ltd | Bearing seal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1199714A (en) * | 1916-01-20 | 1916-09-26 | James F Sargent | Clothes-basket. |
| US2720404A (en) * | 1950-10-16 | 1955-10-11 | Saywell Associates | Lubricant seal |
| US3129985A (en) * | 1961-11-11 | 1964-04-21 | Poilard Bearings Ltd | Seals for ball and roller bearings |
| US3236532A (en) * | 1963-02-15 | 1966-02-22 | Wintringham | Combined dustguard and oil seal for journal box |
-
1982
- 1982-07-26 JP JP11382682U patent/JPS5917323U/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1199714A (en) * | 1916-01-20 | 1916-09-26 | James F Sargent | Clothes-basket. |
| US2720404A (en) * | 1950-10-16 | 1955-10-11 | Saywell Associates | Lubricant seal |
| US3129985A (en) * | 1961-11-11 | 1964-04-21 | Poilard Bearings Ltd | Seals for ball and roller bearings |
| US3236532A (en) * | 1963-02-15 | 1966-02-22 | Wintringham | Combined dustguard and oil seal for journal box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5917323U (en) | 1984-02-02 |
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