JPS5913179Y2 - Steering gear dustproof/waterproof device - Google Patents
Steering gear dustproof/waterproof deviceInfo
- Publication number
- JPS5913179Y2 JPS5913179Y2 JP3658180U JP3658180U JPS5913179Y2 JP S5913179 Y2 JPS5913179 Y2 JP S5913179Y2 JP 3658180 U JP3658180 U JP 3658180U JP 3658180 U JP3658180 U JP 3658180U JP S5913179 Y2 JPS5913179 Y2 JP S5913179Y2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- yoke
- steering gear
- dust cover
- peripheral edge
- 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
Landscapes
- Sealing Devices (AREA)
Description
【考案の詳細な説明】
本考案は、ハウジング内にて軸支された回転軸のハウジ
ング外突出部にヨークが脱着可能に組付られるステアリ
ングギヤに実施するに適した防塵・防水装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dustproof/waterproof device suitable for implementation in a steering gear in which a yoke is removably attached to a protruding portion of a rotary shaft supported within a housing.
従来、ステアリングギヤの防塵・防水装置においては、
環状のダストカバーがその内周縁部にて回転軸のハウジ
ング外突出部又はヨークに組付けられてはいるものの、
このダストカバーの外周縁部とハウジングの外面間には
スキマがあり、十分な防塵・防水効果を期待できない。Conventionally, in dustproof and waterproof devices for steering gears,
Although the annular dust cover is attached to the outer housing protrusion or yoke of the rotating shaft at its inner peripheral edge,
There is a gap between the outer periphery of the dust cover and the outer surface of the housing, and sufficient dustproof and waterproof effects cannot be expected.
これに対処するため、ダスｌ−カバーの外周縁部をハウ
ジングの外面に単に接触させてスキマを無くすことが考
えられるが、その場合には、回転軸の回転操作トルクが
増加することは勿論のこと、ハウジング、回転軸、ヨー
ク、等各部材の製作誤差及び組付誤差により」１記回転
操作トルクが製品間において大きく異なって、実用に適
さない。To deal with this, it may be possible to eliminate the gap by simply bringing the outer peripheral edge of the DAS l-cover into contact with the outer surface of the housing, but in that case, of course, the rotation operating torque of the rotating shaft would increase. In addition, due to manufacturing errors and assembly errors of each member such as the housing, rotating shaft, yoke, etc., the rotating operation torque shown in item 1 varies greatly between products, making it unsuitable for practical use.
本考案は、かかる実状に鑑みなされたもので、以下に、
その一実施例を図面に基づいて説明する。The present invention was developed in view of the above circumstances, and includes the following:
One embodiment will be described based on the drawings.
第１図は本考案による防塵・防水装置をパワーステアリ
ングギヤ１０に実施した例を示していて、パワーステア
リングギヤ１０の回転軸１１は本体１２ａ及びカバー１
２ｂを備えるハウジング１２内にて軸支されている。FIG. 1 shows an example in which the dustproof/waterproof device according to the present invention is applied to a power steering gear 10, in which a rotating shaft 11 of the power steering gear 10 is connected to a main body 12a and a cover 1.
2b, and is pivoted within the housing 12.
また回転軸１１はその右端部がオイルシール１３を介し
てハウジング１２外に突出していて、このハウジング外
突出部１１ ａには環状のダストカバー１４が組付けら
れるとともにヨーク１５が脱着可能に組付けられている
。Further, the right end of the rotating shaft 11 protrudes outside the housing 12 via an oil seal 13, and an annular dust cover 14 is attached to this housing outer protrusion 11a, and a yoke 15 is detachably attached thereto. It is being
ヨーク１５は、回転軸１１のハウジング外突出部１１
ａに公知の連結手段、すなわち、セレーション結合し固
定ボルト１６により挟圧固定するとともに抜は防止をす
る連結手段によって組付けられている。The yoke 15 is connected to the outer housing protrusion 11 of the rotating shaft 11.
A is assembled by a known connecting means, that is, a connecting means that connects with serrations, clamps and fixes with a fixing bolt 16, and prevents it from coming off.
しかして、本実施例においては、ダストカバー１４が弾
性体からなり、内周縁部１４ａにて回転軸１１のテーパ
段部１１ ｂに嵌着固定され、外周縁部１４ ｂにてハ
ウジング１２におけるカバー１２ ｂの外面に摺動可能
に接触し、且つ中央部に環状の柔軟な屈曲部（蛇腹部）
１４Ｃを有している。Therefore, in this embodiment, the dust cover 14 is made of an elastic body, and the inner peripheral edge 14a is fitted and fixed to the tapered stepped part 11b of the rotating shaft 11, and the outer peripheral edge 14b is attached to the cover of the housing 12. 12b, and has an annular flexible bending part (bellows part) in the center that is in slidable contact with the outer surface of b.
It has 14C.
またダストカバー１４は、その内周部１４ｄをヨーク１
５の先端にて押されて位置決されている。Further, the dust cover 14 has its inner circumference 14d connected to the yoke 1.
It is pushed and positioned by the tip of 5.
このように構成した本実施例においては、ダストカバー
１４が内周縁部１４ａにて回転軸１１のテーパ段部１１
ｂに嵌着固定され、外周縁部１４ｂにてカバー１２
ｂの外面に接触しているため、防塵・防水効果を十分に
発揮することは勿論のこと、回転軸１１．ハウジング１
２、ヨーク１５、ポル１１６等各部材の製作誤差及び組
付誤差により、第２図にて示したように、ダスＩ・カバ
ー１４が回転軸１１におけるテーパ段部１１ ｂの大径
部側にて位置決めされたり、第３図にて示したように、
ダストカバー１４がテーパ段部１１ ｂの小径部側にて
位置決めされても、その位置決位置の違いをダストカバ
ー１４がその屈曲部１４ Ｃにて屈曲して（第３図にて
示したものにおいては、屈曲がわずかであるため図示は
されかいない）吸収するため、ダストカバー１４におけ
る外周縁部１４ｂのカバー１２ ｂ外面に対する接触圧
（外周縁部１４ｂが仮想線にて示した自由状態から実線
にて示した取付状態まで変形されることにより生じる復
帰力によるもの）は略一定となり、回転軸１１の回転操
作トルクは製品間において不整となることがなく略一定
となる。In this embodiment configured in this way, the dust cover 14 is arranged so that the inner peripheral edge 14a of the dust cover 14 is connected to the tapered step 11 of the rotating shaft 11.
b, and the cover 12 is fitted and fixed at the outer peripheral edge 14b.
Since it is in contact with the outer surface of the rotating shaft 11. Housing 1
2. Due to manufacturing errors and assembly errors of each member such as the yoke 15 and the pole 116, as shown in FIG. As shown in Figure 3,
Even if the dust cover 14 is positioned on the small-diameter side of the tapered stepped portion 11b, the difference in position is compensated for by the dust cover 14 being bent at its bent portion 14C (as shown in FIG. 3). In order to absorb the contact pressure of the outer peripheral edge 14b of the dust cover 14 against the outer surface of the cover 12b (the outer peripheral edge 14b is only shown in the figure because the bending is slight) (due to the return force generated by being deformed to the attached state shown by the solid line) is approximately constant, and the rotational operating torque of the rotating shaft 11 is approximately constant without being irregular between products.
したがって、本実施例において、ダストカバー１４にお
ける外周縁部１４ ｂの変形量Ａを適切に設定すれば、
回転操作トルクを比較的小さくすることができ、しかも
その回転操作トルクは製品間において略同−とすること
かで゛きるため、当該パワーステアリングギヤ１０の製
品性能を略同−とすることができ、実用的効果を計るこ
とができる。Therefore, in this embodiment, if the amount of deformation A of the outer peripheral edge 14b of the dust cover 14 is appropriately set,
Since the rotational operation torque can be made relatively small and the rotational operation torque can be made almost the same between products, the product performance of the power steering gear 10 can be made almost the same. , practical effects can be measured.
なお、上記実施例においては、パワーステアリングギヤ
１０に本考案を実施した例について説明したが、本考案
は通常のステアリングギヤにも同様に実施し得るもので
ある。In the above embodiment, an example in which the present invention is applied to the power steering gear 10 has been described, but the present invention can be similarly applied to a normal steering gear.
また本考案の実施に際しては、ダストカバーの内周部か
ら屈曲部に至る間を鉄板にて構成することも可能である
。Further, when implementing the present invention, it is also possible to construct the space between the inner peripheral part of the dust cover and the bent part with an iron plate.
以上要するに、本考案においては、ハウジング内にて軸
支された回転軸のハウジング外突出部にヨークが脱着可
能に組付けられるステアリングギヤにおいて、前記回転
軸のハウジング外突出部に、内周縁部にて前記回転軸の
外周に嵌着固定され外周縁部にて前記ハウジングの外面
に摺動可能に接触し且つ中央部に環状の柔軟な屈曲部を
有する環状のダストカバーを組付け、このダストカバー
の内周部を前記ヨークの先端にて位置決するようにした
ことにその構成上の特徴があり、これにより、十分な防
塵・防水効果を期待できることは勿論のこと、回転軸の
回転操作Ｉ・ルクを比較的小さく、しかも製品間におい
て略同−とすることができる。In summary, in the present invention, in a steering gear in which a yoke is removably assembled to the outer protrusion of the housing of the rotary shaft that is pivotally supported within the housing, the yoke is attached to the outer protrusion of the housing of the rotary shaft; an annular dust cover that is fitted and fixed on the outer periphery of the rotating shaft, that is in slidable contact with the outer surface of the housing at the outer periphery, and that has an annular flexible bent part in the center; Its structural feature lies in the fact that the inner peripheral part of the yoke is positioned at the tip of the yoke, and as a result, not only can sufficient dustproof and waterproof effects be expected, but also the rotation operation of the rotary shaft I. The torque can be made relatively small and approximately the same between products.
第１図は本考案の一実施例を示す一部破断側面図、第２
図及び゛第３図は共に作用説明のための要部拡大断面図
である。
符号の説明、１０・・・パワーステアリングギヤ、１１
・・・回転軸、１１ ａ・・・ハウジング外突出部、１
１ ｂ・・・テーパ段部（外周）、１２・・・ハウジン
グ、１４・・・ダストカバー、１４ａ・・・内周縁部、
１４ ｂ・・・外周縁部、１４ Ｃ・・・屈曲部、１４
ｄ・・・内周部、１５・・・ヨーク。Fig. 1 is a partially cutaway side view showing one embodiment of the present invention;
Both this figure and FIG. 3 are enlarged sectional views of essential parts for explaining the operation. Explanation of symbols, 10...Power steering gear, 11
... Rotating shaft, 11 a ... Housing external protrusion, 1
1 b...Tapered step (outer periphery), 12... Housing, 14... Dust cover, 14a... Inner peripheral edge,
14 b...Outer peripheral edge, 14 C...Bending part, 14
d...Inner peripheral part, 15...Yoke.
Claims (1)
部にヨークが脱着可能に組付けられるステアリングギヤ
において、前記回転軸のハウジング外突出部に、内周縁
部にて前記回転軸の外周に嵌着固定され外周縁部にて前
記ハウジングの外面に摺動可能に接触し且つ中央部に環
状の柔軟な屈曲部を有する環状のダストカバーを組付け
、このダスｌ−カバーの内周部を前記ヨークの先端にて
位置決するようにしたステアリングギヤの防塵・防水装
置。In a steering gear in which a yoke is removably assembled to a housing external protrusion of a rotary shaft that is pivotally supported within a housing, the yoke is fitted to the housing external protrusion of the rotary shaft, and the inner peripheral edge thereof is fitted onto the outer circumference of the rotary shaft. An annular dust cover which is fixedly attached and slidably contacts the outer surface of the housing at the outer peripheral edge and has an annular flexible bent part in the center is assembled, and the inner peripheral part of this dust cover is attached to the housing. A dustproof/waterproof device for the steering gear that is positioned at the tip of the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3658180U JPS5913179Y2 (en) | 1980-03-18 | 1980-03-18 | Steering gear dustproof/waterproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3658180U JPS5913179Y2 (en) | 1980-03-18 | 1980-03-18 | Steering gear dustproof/waterproof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56136854U JPS56136854U (en) | 1981-10-16 |
| JPS5913179Y2 true JPS5913179Y2 (en) | 1984-04-19 |
Family
ID=29632181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3658180U Expired JPS5913179Y2 (en) | 1980-03-18 | 1980-03-18 | Steering gear dustproof/waterproof device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5913179Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994974U (en) * | 1982-12-18 | 1984-06-27 | 自動車機器株式会社 | Dust cover device for output shaft in steering gear |
-
1980
- 1980-03-18 JP JP3658180U patent/JPS5913179Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56136854U (en) | 1981-10-16 |
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