JP2009058054A - Dust seal for steering - Google Patents

Dust seal for steering Download PDF

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JP2009058054A
JP2009058054A JP2007226003A JP2007226003A JP2009058054A JP 2009058054 A JP2009058054 A JP 2009058054A JP 2007226003 A JP2007226003 A JP 2007226003A JP 2007226003 A JP2007226003 A JP 2007226003A JP 2009058054 A JP2009058054 A JP 2009058054A
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seal
bellows
steering
seal part
steering shaft
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JP5206929B2 (en
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Yasukuni Miyazaki
泰邦 宮崎
Takeshi Kanzaki
剛 神前
Hisao Futamata
久夫 二又
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Nok Corp
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Nok Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce noises due to resonance in a space between a first seal part 12 and a first bellows part, and a space between a second seal part and a second bellows part, in a dust seal for a steering. <P>SOLUTION: This dust seal comprises: a stationary ring part 11 fixed to a column hole 21; a first seal part 12 tightly contacting an outer circumference of a steering shaft 3; a first bellows part 13, whose base 13a on its outer circumference is integrally jointed to the stationary ring part 11 and whose inner circumference is connected with the first seal part 12; a second seal part 16 tightly contacting the outer circumference of the steering shaft 3 nearer a compartment A than the first seal part 12; a second bellows part 17, whose outer circumference is mounted to the base 13a of the first bellows part 13 and whose inner circumference is connected with the second seal part 16; and a resonance preventing material 18 made of a porous sponge-like elastic body with which the space S between the first seal part 12 and the first bellows part 13 and the space between the second seal part 16 and the second bellows part 17 are filled. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、自動車のフロントダッシュパネルにおけるステアリングシャフトの貫通部を密封するステアリング用ダストシールであって、特に、遮音性を向上させたものに関する。   The present invention relates to a dust seal for steering that seals a through-hole of a steering shaft in a front dash panel of an automobile, and particularly relates to an improved sound insulation.

図３は、従来のステアリング用ダストシールを、軸心Ｏを通る平面で切断して示す装着状態の半断面図である。すなわち図３において、参照符号１１０は、自動車における車室ＡとエンジンルームＢを隔てているフロントダッシュパネル、参照符号１２０は、フロントダッシュパネル１１０に開設されたコラムホール１１１を貫通して回転自在に設けられたステアリングシャフトである。   FIG. 3 is a half cross-sectional view of a conventional steering dust seal cut along a plane passing through the axis O. That is, in FIG. 3, reference numeral 110 is a front dash panel that separates the vehicle compartment A and the engine room B in the automobile, and reference numeral 120 is rotatable through a column hole 111 formed in the front dash panel 110. A steering shaft provided.

ステアリング用ダストシール１００は、フロントダッシュパネル１１０のコラムホール１１１とステアリングシャフト１２０との間に介在されるものであって、コラムホール１１１に固定される第一固定環部１０１と、ステアリングシャフト１２０の外周面に密接される第一シール部１０２と、外周の基部１０３ａが前記第一固定環部１０１に一体的に接合されると共に内周が前記第一シール部１０２に連続した第一ベロー部１０３と、この第一ベロー部１０３の基部１０３ａの内周に圧入嵌着された第二固定環部１０４と、第一シール部１０２よりも車室Ａ側でステアリングシャフト１２０の外周面に密接される第二シール部１０５と、外周の基部１０６ａが前記第二固定環部１０４に一体的に接合されると共に内周が前記第二シール部１０５に連続した第二ベロー部１０６とを備える。第一シール部１０２及び第一ベロー部１０３と、第二シール部１０５及び第二ベロー部１０６は、ゴム状弾性材料によって成形されている。   The steering dust seal 100 is interposed between the column hole 111 of the front dash panel 110 and the steering shaft 120, and includes a first fixed ring portion 101 fixed to the column hole 111 and an outer periphery of the steering shaft 120. A first seal portion 102 that is in close contact with the surface, a first bellows portion 103 in which an outer peripheral base portion 103a is integrally joined to the first fixed ring portion 101 and an inner periphery is continuous with the first seal portion 102; The second fixed ring portion 104 press-fitted to the inner periphery of the base portion 103a of the first bellows portion 103, and the second fixed ring portion 104 which is in close contact with the outer peripheral surface of the steering shaft 120 on the vehicle compartment A side with respect to the first seal portion 102. The two seal portions 105 and the outer peripheral base portion 106a are integrally joined to the second fixed ring portion 104, and the inner periphery is the second seal portion 1 5 and a second bellows portion 106 continuous. The first seal portion 102 and the first bellows portion 103, and the second seal portion 105 and the second bellows portion 106 are formed of a rubber-like elastic material.

上記構成を備えるステアリング用ダストシール１００は、フロントダッシュパネル１１０のコラムホール１１１とステアリングシャフト１２０との間を、第一シール部１０２及び第一ベロー部１０３と、第二シール部１０５及び第二ベロー部１０６で二重に密封することによって、エンジンルームＢ側から車室Ａへの雨水やダスト、あるいはエンジンルームＢ内の熱などを伴う外気の流入を防止すると共に、エンジン音や走行音を遮断するものである（例えば特許文献１参照）。
特開平９−２４２８８０号公報 The steering dust seal 100 having the above-described configuration includes a first seal portion 102, a first bellows portion 103, a second seal portion 105, and a second bellows portion between the column hole 111 of the front dash panel 110 and the steering shaft 120. By double sealing at 106, rainwater and dust from the engine room B side to the passenger compartment A, or the inflow of outside air accompanied by heat in the engine room B, etc. are prevented, and engine noise and running noise are blocked. (See, for example, Patent Document 1).
JP-A-9-242880

しかしながら、図３のステアリング用ダストシール１００によれば、第一シール部１０２及び第一ベロー部１０３と、第二シール部１０５及び第二ベロー部１０６との間の密閉空間Ｓが、所定の周波数域で共鳴し、このため車室Ａ側の第二ベロー部１０６が振動して車室Ａ内へ騒音が放射される問題があった。   However, according to the steering dust seal 100 of FIG. 3, the sealed space S between the first seal portion 102 and the first bellows portion 103 and the second seal portion 105 and the second bellows portion 106 has a predetermined frequency range. Therefore, there is a problem that the second bellows portion 106 on the side of the passenger compartment A vibrates and noise is radiated into the passenger compartment A.

本発明は、以上のような点に鑑みてなされたものであって、その技術的課題とするところは、ステアリング用ダストシールにおける第一シール部及び第一ベロー部と第二シール部及び第二ベロー部との間の空間の共鳴による騒音を低減することにある。   The present invention has been made in view of the above points, and the technical problem is that the first seal part, the first bellows part, the second seal part, and the second bellows in the dust seal for steering. The object is to reduce the noise caused by the resonance of the space with the part.

上述した技術的課題を有効に解決するための手段として、本発明に係るステアリング用ダストシールは、ダッシュパネルに開設されたコラムホールに固定される固定環部と、前記コラムホールに挿通されたステアリングシャフトの外周面に密接される第一シール部と、外周の基部が前記固定環部に一体的に接合されると共に内周が前記第一シール部と連続した第一ベロー部と、前記第一シール部よりも車室側で前記ステアリングシャフトの外周面に密接される第二シール部と、外周が前記第一ベロー部の基部に取り付けられると共に内周が前記第二シール部に連続した第二ベロー部と、前記第一シール部及び前記第一ベロー部と前記第二シール部及び前記第二ベロー部との間の空間に充填された弾性体からなる共鳴防止材とを備える。この場合、前記共鳴防止材の弾性体は、多孔質のスポンジ状であることが好ましい。   As means for effectively solving the above technical problem, a steering dust seal according to the present invention includes a stationary ring portion fixed to a column hole established in a dash panel, and a steering shaft inserted through the column hole. A first seal portion that is in close contact with the outer peripheral surface, a first bellows portion in which an outer peripheral base is integrally joined to the stationary ring portion and an inner periphery is continuous with the first seal portion, and the first seal A second seal part that is in close contact with the outer peripheral surface of the steering shaft on the vehicle compartment side of the part, and a second bellows whose outer periphery is attached to the base of the first bellows part and whose inner periphery is continuous with the second seal part And a resonance preventing material made of an elastic body filled in a space between the first seal portion and the first bellows portion and the second seal portion and the second bellows portion. In this case, the elastic body of the resonance preventing material is preferably a porous sponge.

本発明に係るステアリング用ダストシールによれば、第一シール部及び第一ベロー部と第二シール部及び第二ベロー部との間の空間の共鳴が、この空間に充填された共鳴防止材によって防止され、しかも第一ベロー部及び第二ベロー部の振動も、共鳴防止材の振動減衰作用によって抑制されるので、共鳴による騒音を有効に低減することができる。   According to the dust seal for steering according to the present invention, the resonance of the space between the first seal portion and the first bellows portion and the second seal portion and the second bellows portion is prevented by the resonance preventing material filled in the space. In addition, since the vibrations of the first bellows part and the second bellows part are also suppressed by the vibration damping action of the resonance preventing material, noise due to resonance can be effectively reduced.

特に、共鳴防止材に多孔質のスポンジ状弾性体を用いると、このスポンジ状弾性体は、内部気泡によって優れた吸音性及び振動減衰性を有し、しかも内部気泡によって柔軟・軽量であるため、ステアリングシャフトの偏心動作等に対する第一ベロー部及び第二ベロー部の良好な変形性、ひいては第一シール部及び第二シール部の良好な追随性が保たれる。   In particular, when a porous sponge-like elastic body is used as the anti-resonance material, this sponge-like elastic body has excellent sound absorption and vibration damping properties due to internal bubbles, and is flexible and lightweight due to internal bubbles. Good deformability of the first bellows part and the second bellows part with respect to the eccentric operation of the steering shaft and the like, and hence good followability of the first seal part and the second seal part are maintained.

以下、本発明に係るステアリング用ダストシールの好ましい実施の形態について、図面を参照しながら説明する。図１は、本発明に係るステアリング用ダストシールを、軸心Ｏを通る平面で切断して示す装着状態の半断面図、図２は、本発明に係るステアリング用ダストシールによる音圧低減効果を示す特性線図である。   Hereinafter, preferred embodiments of a dust seal for steering according to the present invention will be described with reference to the drawings. FIG. 1 is a half sectional view of a mounted state in which a steering dust seal according to the present invention is cut along a plane passing through an axis O, and FIG. 2 is a characteristic showing a sound pressure reduction effect by the steering dust seal according to the present invention. FIG.

図１において、参照符号２は自動車の車室ＡとエンジンルームＢを隔てているフロントダッシュパネル、参照符号３は、フロントダッシュパネル２に開設された円筒状のコラムホール２１を貫通して回転自在に設けられたステアリングシャフトである。ステアリングシャフト３は、車室Ａ側の端部に設けられた不図示のステアリングホイールによって回動し、不図示のステアリングギヤを介して前輪を操舵するもので、コラムホール２１に対して偏心可能に挿通されている。   In FIG. 1, reference numeral 2 is a front dash panel that separates a vehicle compartment A from an engine room B, and reference numeral 3 is rotatable through a cylindrical column hole 21 formed in the front dash panel 2. It is the steering shaft provided in. The steering shaft 3 is rotated by a steering wheel (not shown) provided at an end on the side of the passenger compartment A, and steers the front wheels via a steering gear (not shown), and can be eccentric with respect to the column hole 21. It is inserted.

本発明のステアリング用ダストシール１は、コラムホール２１とステアリングシャフト３との間に介在されていて、コラムホール２１の内周面に圧入固定される第一固定環部１１と、ステアリングシャフト３の外周面に密接される第一シール部１２と、外周の基部１３ａが第一固定環部１１に一体的に接合されると共に内周１３ｂが前記第一シール部１２に連続した第一ベロー部１３と、前記第一シール部１２に埋設された補強環１４と、前記第一ベロー部１３の基部１３ａの内周に圧入嵌着された第二固定環部１５と、第一シール部１２よりも車室Ａ側でステアリングシャフト３の外周面に密接される第二シール部１６と、外周の基部１７ａが前記第二固定環部１５に一体的に接合されると共に内周１７ｂが前記第二シール部１６に連続した第二ベロー部１７と、前記第一シール部１２及び前記第一ベロー部１３と前記第二シール部１６及び前記第二ベロー部１７との間の空間Ｓに充填された共鳴防止材１８とを備える。なお、第一固定環部１１は請求項１に記載された固定環部に相当する。   The steering dust seal 1 of the present invention is interposed between the column hole 21 and the steering shaft 3, and includes a first fixed ring portion 11 that is press-fitted and fixed to the inner peripheral surface of the column hole 21, and an outer periphery of the steering shaft 3. A first seal portion 12 in close contact with the surface, a first bellows portion 13 in which an outer peripheral base portion 13a is integrally joined to the first fixed ring portion 11 and an inner periphery 13b is continuous with the first seal portion 12; The reinforcing ring 14 embedded in the first seal portion 12, the second fixed ring portion 15 press-fitted to the inner periphery of the base portion 13 a of the first bellows portion 13, and the vehicle than the first seal portion 12. A second seal portion 16 that is in close contact with the outer peripheral surface of the steering shaft 3 on the chamber A side, and an outer peripheral base portion 17a are integrally joined to the second fixed ring portion 15, and an inner peripheral portion 17b is the second seal portion. Consecutive to 16 A second bellows part 17, and a resonance preventing material 18 filled in a space S between the first seal part 12 and the first bellows part 13 and the second seal part 16 and the second bellows part 17. Prepare. The first fixed ring portion 11 corresponds to the fixed ring portion described in claim 1.

第一シール部１２及び第一ベロー部１３は、ゴム状弾性材料によって金属製の第一固定環部１１及び補強環１４と一体に加硫成形されたものである。第一シール部１２は、ステアリングシャフト３の外周面に密接される先端のリップ部１２ａと、ステアリングシャフト３の外周面に当接される摺動ガイド部１２ｂとを備え、リップ部１２ａによって、エンジンルームＢ側からのダストや雨水あるいは熱気や外気の流入を防止するシール機能を営むものである。   The first seal part 12 and the first bellows part 13 are vulcanized and molded integrally with the metal first fixed ring part 11 and the reinforcing ring 14 by a rubber-like elastic material. The first seal portion 12 includes a lip portion 12a at the tip that is in close contact with the outer peripheral surface of the steering shaft 3, and a sliding guide portion 12b that is in contact with the outer peripheral surface of the steering shaft 3. It performs a sealing function to prevent inflow of dust, rainwater, hot air, or outside air from the room B side.

また、第二シール部１６及び第二ベロー部１７は、ゴム状弾性材料によって金属製の第二固定環部１５と一体に加硫成形されたものである。第二シール部１６は、第一シール部１２から車室Ａ側へ適宜離れた位置で、ステアリングシャフト３の外周面に密接されることによって、シール機能を営むもので、第二ベロー部１７の外周の基部１７ａは、第二固定環部１５を介して第一ベロー部１３の基部１３ａの内周に取り付けられている。   The second seal part 16 and the second bellows part 17 are vulcanized and molded integrally with the metal second fixed ring part 15 by a rubber-like elastic material. The second seal portion 16 performs a sealing function by being in close contact with the outer peripheral surface of the steering shaft 3 at a position appropriately separated from the first seal portion 12 toward the vehicle compartment A side. The outer peripheral base portion 17 a is attached to the inner periphery of the base portion 13 a of the first bellows portion 13 via the second fixed ring portion 15.

第一ベロー部１３及び第二ベロー部１７は、軸心Ｏを通る平面で切断した形状（図示の断面形状）が波状の屈曲形状となっており、ステアリングシャフト３の偏心運動に対して容易に変形し、第一シール部１２及び第二シール部１６の追随を容易ならしめている。   The first bellows portion 13 and the second bellows portion 17 have a wave-like bent shape (a cross-sectional shape shown in the drawing) cut along a plane passing through the axis O, so that the eccentric motion of the steering shaft 3 can be easily performed. The first seal part 12 and the second seal part 16 can be easily followed by deformation.

共鳴防止材１８は、多孔質のスポンジ状弾性体からなるものであって、好ましくは、軸心Ｏを通る平面で切断した断面の形状を、第二シール部１６及び第二ベロー部１７の屈曲形状に倣った形状とするが、必ずしもそのような断面形状としなくても良い。   The anti-resonance material 18 is made of a porous sponge-like elastic body, and preferably has a cross-sectional shape cut by a plane passing through the axis O to bend the second seal portion 16 and the second bellows portion 17. The shape follows the shape, but such a cross-sectional shape is not necessarily required.

上記構成を備える本発明のステアリング用ダストシール１は、フロントダッシュパネル２のコラムホール２１とステアリングシャフト３との間を、第一シール部１２及び第一ベロー部１３と、第二シール部１６及び第二ベロー部１７で二重に密封することによって、エンジンルームＢ側からの雨水やダスト、あるいはエンジンルームＢ内の熱気や外気が車室Ａへ流入するのを防止するものである。   The steering dust seal 1 of the present invention having the above-described configuration is provided between the column hole 21 and the steering shaft 3 of the front dash panel 2 between the first seal portion 12 and the first bellows portion 13, the second seal portion 16, and the first seal portion. Double sealing at the two bellows portion 17 prevents rainwater and dust from the engine room B side or hot air and outside air from the engine room B from flowing into the vehicle compartment A.

また、このステアリング用ダストシール１は、第一シール部１２及び第一ベロー部１３と、第二シール部１６及び第二ベロー部１７による二重の遮音壁と、その間の空間Ｓに充填された共鳴防止材１８によって、エンジンルームＢ側からのエンジン音や走行音を遮断する機能も有する。詳しくは、エンジンルームＢ側から入射される音波は、まず、ゴム状弾性材料からなる第一シール部１２及び第一ベロー部１３を伝播する過程である程度減衰され、次に、共鳴防止材１８を伝播する過程でも減衰され、更に第二シール部１６及び第二ベロー部１７を伝播する過程でも減衰される。特に、多孔質のスポンジ状弾性体からなる共鳴防止材１８は、内部気泡によって高い吸音性及び振動減衰性を有するので、優れた遮音効果を発揮する。   Further, the steering dust seal 1 includes a first sound seal portion 12 and a first bellows portion 13, a double sound insulation wall formed by the second seal portion 16 and the second bellows portion 17, and a resonance prevention filled in the space S therebetween. The material 18 also has a function of blocking engine sound and running sound from the engine room B side. Specifically, the sound wave incident from the engine room B side is first attenuated to some extent in the process of propagating through the first seal part 12 and the first bellows part 13 made of rubber-like elastic material, It is also attenuated in the process of propagating and further attenuated in the process of propagating through the second seal part 16 and the second bellows part 17. In particular, the anti-resonance material 18 made of a porous sponge-like elastic body has a high sound absorbing property and vibration damping property due to internal bubbles, and thus exhibits an excellent sound insulating effect.

また、第一シール部１２及び第一ベロー部１３と第二シール部１６及び第二ベロー部１７との間の空間Ｓは、共鳴防止材１８が充填されているので、この空間Ｓに存在する空気がエンジン音等に共鳴することはない。もし、第一シール部１２及び第一ベロー部１３と共鳴防止材１８との間、あるいは第二シール部１６及び第二ベロー部１７と共鳴防止材１８との間の隙間に共鳴が発生したとしても、この共鳴による第一ベロー部１３あるいは第二ベロー部１７の振動は、共鳴防止材１８の振動減衰作用によって抑制されるので、図２の特性線図に示されるように、共鳴による音圧のピークを有効に低減することができる。   Further, the space S between the first seal portion 12 and the first bellows portion 13 and the second seal portion 16 and the second bellows portion 17 is filled with the resonance preventing material 18 and therefore exists in this space S. Air does not resonate with engine sound. If resonance occurs in the gap between the first seal portion 12 and the first bellows portion 13 and the resonance preventing material 18 or between the second seal portion 16 and the second bellows portion 17 and the resonance preventing material 18. However, since the vibration of the first bellows portion 13 or the second bellows portion 17 due to the resonance is suppressed by the vibration damping action of the resonance preventing material 18, as shown in the characteristic diagram of FIG. Can be effectively reduced.

また、共鳴防止材１８は、内部気泡によって柔軟・軽量であるため、ステアリングシャフト３の偏心動作に対する第一ベロー部１３及び第二ベロー部１７の変形動作を妨げない。このため、第一シール部１２及び第二シール部１６の良好な追随性が保たれる。   Further, since the anti-resonance material 18 is flexible and lightweight due to internal bubbles, it does not hinder the deformation operation of the first bellows 13 and the second bellows 17 with respect to the eccentric operation of the steering shaft 3. For this reason, the favorable followability of the 1st seal part 12 and the 2nd seal part 16 is maintained.

本発明に係るステアリング用ダストシールを、軸心Ｏを通る平面で切断して示す装着状態の半断面図である。1 is a half cross-sectional view of a mounting state in which a steering dust seal according to the present invention is cut along a plane passing through an axis O. FIG. 本発明に係るステアリング用ダストシールによる音圧低減効果を示す特性線図である。It is a characteristic line figure which shows the sound pressure reduction effect by the dust seal for steerings concerning this invention. 従来のステアリング用ダストシールを、軸心Ｏを通る平面で切断して示す装着状態の半断面図である。FIG. 6 is a half cross-sectional view of a mounting state in which a conventional steering dust seal is cut along a plane passing through an axis O.

符号の説明Explanation of symbols

１ ステアリング用ダストシール
１１ 第一固定環部（固定環部）
１２ 第一シール部
１３ 第一ベロー部
１４ 補強環
１５ 第二固定環部
１６ 第二シール部
１７ 第二ベロー部
１８ 共鳴防止材
２ フロントダッシュパネル
２１ コラムホール
３ ステアリングシャフト 1 Steering dust seal 11 First fixed ring (fixed ring)
12 First seal portion 13 First bellow portion 14 Reinforcement ring 15 Second fixed ring portion 16 Second seal portion 17 Second bellow portion 18 Resonance prevention material 2 Front dash panel 21 Column hole 3 Steering shaft

Claims (2)

ダッシュパネルに開設されたコラムホールに固定される固定環部と、前記コラムホールに挿通されたステアリングシャフトの外周面に密接される第一シール部と、外周の基部が前記固定環部に一体的に接合されると共に内周が前記第一シール部と連続した第一ベロー部と、前記第一シール部よりも車室側で前記ステアリングシャフトの外周面に密接される第二シール部と、外周が前記第一ベロー部の基部に取り付けられると共に内周が前記第二シール部に連続した第二ベロー部と、前記第一シール部及び前記第一ベロー部と前記第二シール部及び前記第二ベロー部との間の空間に充填された弾性体からなる共鳴防止材とを備えることを特徴とするステアリング用ダストシール。   A fixed ring portion fixed to the column hole established in the dash panel, a first seal portion in close contact with the outer peripheral surface of the steering shaft inserted through the column hole, and a base portion on the outer periphery are integrated with the fixed ring portion A first bellows part that is joined to the first seal part and has an inner periphery that is continuous with the first seal part; a second seal part that is in close contact with the outer peripheral surface of the steering shaft on the vehicle compartment side of the first seal part; Is attached to the base of the first bellows part and has an inner periphery continuous to the second seal part, the first seal part, the first bellow part, the second seal part, and the second A steering dust seal comprising: an anti-resonance material made of an elastic body filled in a space between the bellows portion. 共鳴防止材の弾性体が多孔質のスポンジ状であることを特徴とする請求項１に記載のステアリング用ダストシール。   2. The dust seal for steering according to claim 1, wherein the elastic body of the resonance preventing material is in the form of a porous sponge.
JP2007226003A 2007-08-31 2007-08-31 Steering dust seal Expired - Fee Related JP5206929B2 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011105449A1 (en) * 2011-06-22 2012-12-27 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Double-walled annular seal element for sealing gap between passage opening in front wall and shaft of steering of motor car, has radial pre-tensioned inner sealing rings biasing against shaft and assigned with respective sealing diaphragms
JP2014009769A (en) * 2012-06-29 2014-01-20 Nok Corp Sealing device
JP2016016802A (en) * 2014-07-10 2016-02-01 Nok株式会社 Dust seal
JP2016089930A (en) * 2014-11-04 2016-05-23 Nok株式会社 Sealing device with noise insulation seal
CN112009394A (en) * 2020-09-11 2020-12-01 宝能(广州)汽车研究院有限公司 Steering column assembly of vehicle and vehicle
CN113978387A (en) * 2021-10-28 2022-01-28 诺博橡胶制品有限公司 Steering shaft dustproof structure
CN114750820A (en) * 2022-04-24 2022-07-15 中国第一汽车股份有限公司 Automobile steering sheath and preparation method thereof

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JPH09242880A (en) * 1996-03-07 1997-09-16 Nok Corp Sealing device
JP2005280565A (en) * 2004-03-30 2005-10-13 Honda Motor Co Ltd Steering device for vehicle
JP2006177400A (en) * 2004-12-21 2006-07-06 Nok Corp Sealing device with sound insulating seal

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JPS6316214U (en) * 1986-07-18 1988-02-03
JPH0684068U (en) * 1993-05-20 1994-12-02 エヌオーケー株式会社 Sealing device
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011105449A1 (en) * 2011-06-22 2012-12-27 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Double-walled annular seal element for sealing gap between passage opening in front wall and shaft of steering of motor car, has radial pre-tensioned inner sealing rings biasing against shaft and assigned with respective sealing diaphragms
JP2014009769A (en) * 2012-06-29 2014-01-20 Nok Corp Sealing device
JP2016016802A (en) * 2014-07-10 2016-02-01 Nok株式会社 Dust seal
JP2016089930A (en) * 2014-11-04 2016-05-23 Nok株式会社 Sealing device with noise insulation seal
CN112009394A (en) * 2020-09-11 2020-12-01 宝能(广州)汽车研究院有限公司 Steering column assembly of vehicle and vehicle
CN113978387A (en) * 2021-10-28 2022-01-28 诺博橡胶制品有限公司 Steering shaft dustproof structure
CN113978387B (en) * 2021-10-28 2023-07-25 诺博橡胶制品有限公司 Steering shaft dustproof structure
CN114750820A (en) * 2022-04-24 2022-07-15 中国第一汽车股份有限公司 Automobile steering sheath and preparation method thereof
CN114750820B (en) * 2022-04-24 2023-03-24 中国第一汽车股份有限公司 Automobile steering sheath and preparation method thereof

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