JPH10159988A - Dust cover - Google Patents

Dust cover

Info

Publication number
JPH10159988A
JPH10159988A JP33482796A JP33482796A JPH10159988A JP H10159988 A JPH10159988 A JP H10159988A JP 33482796 A JP33482796 A JP 33482796A JP 33482796 A JP33482796 A JP 33482796A JP H10159988 A JPH10159988 A JP H10159988A
Authority
JP
Japan
Prior art keywords
dust cover
reinforcing
small opening
elastic
opening
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.)
Pending
Application number
JP33482796A
Other languages
Japanese (ja)
Inventor
Waka Sawamura
和香 沢村
Original Assignee
Musashi Seimitsu Ind Co Ltd
武蔵精密工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Musashi Seimitsu Ind Co Ltd, 武蔵精密工業株式会社 filed Critical Musashi Seimitsu Ind Co Ltd
Priority to JP33482796A priority Critical patent/JPH10159988A/en
Publication of JPH10159988A publication Critical patent/JPH10159988A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a dust cover on which adhesive strength of a small opening part is not reduced and which is excellent in durability by embedding a reinforcing member composed of an elastic member which is filled between a reinforcing ring and auxiliary members and whose elastic modulus is lower than the dust cover. SOLUTION: In a dust cover 11, an inner peripheral installing part 15 of a small opening part 12 is installed on an outer periphery of a handle part 3 of a stud 2, and in a large opening part 13, a fastening ring 16 is installed on an outer periphery, and is installed in a dust cover installing groove 8 formed on an outer periphery of a housing 5. A reinforcing member 14 is embedded in the small opening part 12 of the dust cover 11. A reinforcing member 14 is composed of a metallic cross-sectional L-shaped reinforcing ring 14a, plural auxiliary members 14c arranged at intervals on the inner peripheral side of the reinforcing ring 14a and an elastic member 14b which is filled between the reinforcing ring 14a and the auxiliary members 14c and whose elastic modulus is lower than the dust cover 11. Therefore, resiliency of the elastic member 14b strongly acts, and high sealing performance can be maintained.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、例えば自動車の懸架装置または操舵装置等に使用されるジョイント部材のダストカバーに関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust cover for a joint member used for, for example, a suspension system or a steering system of an automobile.

【0002】 [0002]

【従来の技術】自動車の懸架装置または操舵装置等に使
用されるジョイント部材には、図4に示される如くダス
トカバー111が装着されているものがある。このジョ
イント部材はボールジョイント101で、球状の球頭部
104と、その球頭部104から突出する柄部103と
からなるスタッド102と、スタッド102の球頭部1
04を揺動回動自在に包持する合成樹脂製で略カップ状のベアリング109と、ベアリング109の外周に配設される金属製で略円筒状のハウジング105とを備えている。 It is provided with a synthetic resin-made substantially cup-shaped bearing 109 that oscillates and rotates the 04, and a metal-made substantially cylindrical housing 105 arranged on the outer periphery of the bearing 109. このハウジング105は一端開口106からスタッド102の柄部103を突出させ、他端開口107には閉止板117がかしめ固定されており、一端開口10 In this housing 105, the handle 103 of the stud 102 is projected from the opening 106 at one end, and the closing plate 117 is caulked and fixed to the opening 107 at the other end.
6側外周にはダストカバー装着溝108が形成されている。 A dust cover mounting groove 108 is formed on the outer circumference on the 6 side. 111は弾性材製で略円筒状のダストカバーで、小開口部112の内周装着部115はスタッド102の柄部103の外周に装着され、大開口部113は外周に締付リング116が装着されており、ハウジング105の外周に形成されたダストカバー装着溝108に装着されている。 The 111 is made of an elastic material and has a substantially cylindrical dust cover. The inner peripheral mounting portion 115 of the small opening 112 is mounted on the outer circumference of the handle 103 of the stud 102, and the large opening 113 is mounted on the outer circumference with a tightening ring 116. It is mounted in the dust cover mounting groove 108 formed on the outer periphery of the housing 105. そして図5に示される如く、ダストカバー11 And as shown in FIG. 5, the dust cover 11
1の小開口部112には金属製で断面L字状の補強環1 The small opening 112 of 1 is made of metal and has an L-shaped cross section.
14aが埋設されている。 14a is buried. また、このダストカバー11 In addition, this dust cover 11
1の小開口部112側端面には、上リップ117,11 On the end face on the 112 side of the small opening of 1, the upper lips 117, 11
8が形成されている。 8 is formed. 2. Description of the Related Art As a joint member used for a suspension device or a steering device of an automobile, there is a joint member having a dust cover 111 as shown in FIG. The joint member is a ball joint 101, a stud 102 having a spherical ball head 104, a handle 103 projecting from the ball head 104, and a ball head 1 of the stud 102. 2. Description of the Related Art As a joint member used for a suspension device or a steering device of an automobile, there is a joint member having a dust cover 111 as shown in FIG. The joint member is a ball joint 101, a stud 102 having a spherical ball head 104, a handle 103 projecting from the ball head 104, and a ball head 1 of the stud 102.
A bearing 109 made of a synthetic resin and enclosing the bearing 04 in a swingable manner is provided, and a housing 105 made of metal and disposed substantially on the outer periphery of the bearing 109 is provided. The housing 105 has the handle portion 103 of the stud 102 protruding from one end opening 106, and a closing plate 117 is caulked and fixed to the other end opening 107. A bearing 109 made of a synthetic resin and enclosing the bearing 04 in a swingable manner is provided, and a housing 105 made of metal and disposed substantially on the outer peripheral of the bearing 109 is provided. The housing 105 has the handle portion 103 of the stud 102 forming from one end opening 106, and a closing plate 117 is caulked and fixed to the other end opening 107.
A dust cover mounting groove 108 is formed on the outer periphery on the sixth side. Reference numeral 111 denotes a substantially cylindrical dust cover made of an elastic material. The inner peripheral mounting portion 115 of the small opening 112 is mounted on the outer periphery of the handle portion 103 of the stud 102, and the large opening 113 is mounted on the outer periphery of the fastening ring 116. It is mounted in a dust cover mounting groove 108 formed on the outer periphery of the housing 105. Then, as shown in FIG. A dust cover mounting groove 108 is formed on the outer peripheral on the sixth side. Reference identifier 1110035 a substantially cylindrical dust cover made of an elastic material. The inner peripheral mounting portion 115 of the small opening 112 is mounted on the outer peripheral of The handle portion 103 of the stud 102, and the large opening 113 is mounted on the outer peripheral of the preventing ring 116. It is mounted in a dust cover mounting groove 108 formed on the outer peripheral of the housing 105. Then, as shown in FIG.
The reinforcing ring 1 made of metal and having an L-shaped cross section is The promoting ring 1 made of metal and having an L-shaped cross section is
14a is buried. Also, this dust cover 11 14a is buried. Also, this dust cover 11
The upper lip 117, 11 The upper lip 117, 11
8 are formed. 8 are formed.

【0003】 [0003]

【発明が解決しようとする課題】このようなダストカバ
ー111が装着されたボールジョイント101の上リッ
プ117,118は連接棒120端面121に密着接触
しているため、外部から水や塵等がボールジョイント内
部へ侵入するのを防いでいる。しかし、このボールジョ
イント101のスタッド102の揺動によって反揺動側
にあるダストカバー111の上リップ117,118と
連接棒120端面121との間には隙間が発生してしま
うことがある。このような場合でも、ダストカバー11
1の内周装着部115がスタッド102の柄部103に密着しているためシール性が確保されており、水や塵等の侵入を防ぐことができる。 Since the inner peripheral mounting portion 115 of 1 is in close contact with the handle portion 103 of the stud 102, the sealing property is ensured, and the intrusion of water, dust, etc. can be prevented. けれど、長期に渡ってこのようなボールジョイント101を使用しているとダストカバー111の上リップ117,118が摩耗してしまうため、ダストカバー111は軸線方向の反発力により連接棒120方向へ小開口部112が移動してしまう。 However, if such a ball joint 101 is used for a long period of time, the upper lips 117 and 118 of the dust cover 111 will be worn, so that the dust cover 111 is small in the connecting rod 120 direction due to the repulsive force in the axial direction. The opening 112 moves.
また、ダストカバー111の内周装着部115も同様にスタッド102の揺動に伴って摩耗してしまうため、シール性が低下し、ダストカバー111の小開口部112 Further, the inner peripheral mounting portion 115 of the dust cover 111 also wears as the stud 102 swings, so that the sealing property deteriorates and the small opening 112 of the dust cover 111
とスタッド102の柄部103との間に隙間が発生してしまうことがある。 A gap may be generated between the stud 102 and the handle 103 of the stud 102. そうなるとスタッド102の揺動によって反揺動側にあるダストカバー111の上リップ1 Then, due to the swing of the stud 102, the upper lip 1 of the dust cover 111 on the non-swing side
17,118と連接棒120端面との間に隙間が発生し、上リップ117,118を越えて水や塵等が侵入してきた場合、ダストカバー111の内周装着部115でも水や塵等の侵入を防ぐことができず、ボールジョイント101内部へ侵入してしまうという不具合が発生してしまう。 If a gap is created between the 17th and 118th and the end face of the connecting rod 120 and water or dust invades beyond the upper lips 117 or 118, the inner peripheral mounting portion 115 of the dust cover 111 may also have water or dust. It is not possible to prevent the intrusion, and a problem occurs that the intrusion into the inside of the ball joint 101 occurs. Since the upper lips 117 and 118 of the ball joint 101 on which the dust cover 111 is mounted are in close contact with the end face 121 of the connecting rod 120, water, dust and the like are exposed to water from the outside. Prevents intrusion into the joint. However, due to the swing of the stud 102 of the ball joint 101, a gap may be generated between the upper lip 117, 118 of the dust cover 111 on the anti-oscillation side and the end face 121 of the connecting rod 120. Even in such a case, the dust cover 11 Since the upper lips 117 and 118 of the ball joint 101 on which the dust cover 111 is mounted are in close contact with the end face 121 of the connecting rod 120, water, dust and the like are exposed to water from the outside. Prevents However, due to the swing of the stud 102 of the ball joint 101, a gap may be generated between the upper lip 117, 118 of the dust cover 111 on the anti-oscillation side and the end face 121 of the connecting rod 120. Even in such a case, the dust cover 11
Since the inner peripheral mounting portion 115 is in close contact with the handle portion 103 of the stud 102, the sealing performance is ensured, and the intrusion of water, dust, and the like can be prevented. However, if such a ball joint 101 is used for a long period of time, the upper lips 117 and 118 of the dust cover 111 will be worn, and the dust cover 111 will be reduced toward the connecting rod 120 due to the repulsive force in the axial direction. The opening 112 moves. Since the inner peripheral mounting portion 115 is in close contact with the handle portion 103 of the stud 102, the sealing performance is ensured, and the intrusion of water, dust, and the like can be prevented. However, if such a ball joint 101 is used for a long period of time, the upper lips 117 and 118 of the dust cover 111 will be worn, and the dust cover 111 will be reduced toward the connecting rod 120 due to the repulsive force in the axial direction. The opening 112 moves.
Also, the inner peripheral mounting portion 115 of the dust cover 111 is similarly worn due to the swing of the stud 102, so that the sealing property is reduced and the small opening 112 of the dust cover 111 is reduced. Also, the inner peripheral mounting portion 115 of the dust cover 111 is similarly worn due to the swing of the stud 102, so that the sealing property is reduced and the small opening 112 of the dust cover 111 is reduced.
There may be a gap between the stud 102 and the handle 103 of the stud 102. Then, the upper lip 1 of the dust cover 111 on the anti-oscillation side due to the oscillation of the stud 102 There may be a gap between the stud 102 and the handle 103 of the stud 102. Then, the upper lip 1 of the dust cover 111 on the anti-oscillation side due to the oscillation of the stud 102
When a gap is generated between the end faces 17 and 118 and the end face of the connecting rod 120 and water or dust or the like enters over the upper lip 117 or 118, the inner peripheral mounting portion 115 of the dust cover 111 also causes water or dust or the like. The intrusion cannot be prevented, and the intrusion into the ball joint 101 occurs. When a gap is generated between the end faces 17 and 118 and the end face of the connecting rod 120 and water or dust or the like enters over the upper lip 117 or 118, the inner peripheral mounting portion 115 of the dust cover 111 also causes water or dust or the like. The intrusion cannot be prevented, and the intrusion into the ball joint 101 occurs.

【0004】従って、本発明は上述の如き課題を解決し、長期の使用に対し、小開口部の密着力を低下させることのない耐久性の優れたダストカバーを提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems described above and to provide a dust cover having excellent durability without reducing the adhesive force of the small opening for long-term use.

【0005】 [0005]

【課題を解決するための手段】本発明の構成は以下の通りである。 The configuration of the present invention is as follows.

【0006】両端が開口し、一端小開口部がスタッドの
柄部外周に、他端大開口部がハウジングの外周に各々装
着される略円筒状のダストカバーにおいて、小開口部に
は、金属製で断面L字状の補強環と、補強環の内周側に
間隔をおいて配置される複数の補助部材と、補強環と補
助部材との間に充填され、ダストカバーよりも弾性係数
の低い弾性部材とからなる補強部材が埋設されている。
In a substantially cylindrical dust cover in which both ends are opened, one small opening is attached to the outer periphery of the handle of the stud, and the other large opening is attached to the outer periphery of the housing, the small opening is made of metal. A reinforcing ring having an L-shaped cross section, a plurality of auxiliary members arranged at intervals on the inner peripheral side of the reinforcing ring, and a space between the reinforcing ring and the auxiliary member, wherein the elastic coefficient is lower than that of the dust cover. A reinforcing member made of an elastic member is embedded.

【0007】 [0007]

【実施例】以下本発明の実施例を図1乃至図3に基づいて説明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

【0008】図1は本発明の実施例によるダストカバー
11を装着したボールジョイント1を表す。このボール
ジョイント1は、球状の球頭部4と、その球頭部4から
突出する柄部3とからなるスタッド2と、スタッド2の
球頭部4を揺動回動自在に包持する合成樹脂製で略カッ
プ状のベアリング9と、ベアリング9の外周に配設され
る金属製で略円筒状のハウジング5とを備えている。こ
のハウジング5は一端開口6からスタッド2の柄部3を
突出させ、他端開口7には閉止板17がかしめ固定され
ており、一端開口6側外周にはダストカバー装着溝8が
形成されている。11は弾性材製で略円筒状のダストカ
バーで、小開口部12の内周装着部15はスタッド2の
柄部3の外周に装着され、大開口部13は外周に締付リ
ング16が装着されており、ハウジング5の外周に形成
されたダストカバー装着溝8に装着されている。そし
て、ダストカバー11の小開口部12には補強部材14
が埋設されている。 Is buried. この補強部材14は、図2及び図3 The reinforcing member 14 is shown in FIGS. 2 and 3.
に示される如く、金属製で断面L字状の補強環14a As shown in, a reinforcing ring 14a made of metal and having an L-shaped cross section.
と、補強環14aの内周側に間隔をおいて配置される複数の補助部材14cと、補強環14aと補助部材14c A plurality of auxiliary members 14c arranged on the inner peripheral side of the reinforcing ring 14a at intervals, and the reinforcing ring 14a and the auxiliary member 14c.
との間に充填され、ダストカバーよりも弾性係数の低い弾性部材14bとから構成されている。 It is filled with and is composed of an elastic member 14b having an elastic modulus lower than that of the dust cover. また、このダストカバー11の小開口部12側端面には、上リップ1 Further, the upper lip 1 is provided on the end surface of the dust cover 11 on the side of the small opening 12.
7,18が形成されている。 7 and 18 are formed. FIG. 1 shows a ball joint 1 equipped with a dust cover 11 according to an embodiment of the present invention. The ball joint 1 is composed of a stud 2 having a spherical ball head 4, a handle 3 projecting from the ball head 4, and a ball head 4 of the stud 2 swingably and rotatably held. The bearing includes a resin-made substantially cup-shaped bearing 9 and a metal-made substantially cylindrical housing 5 disposed on the outer periphery of the bearing 9. The housing 5 has the handle portion 3 of the stud 2 protruding from one end opening 6, a closing plate 17 is fixed by caulking to the other end opening 7, and a dust cover mounting groove 8 is formed on the outer periphery of the one end opening 6 side. I have. Reference numeral 11 denotes a substantially cylindrical dust cover made of an elastic material. The inner peripheral mounting portion 15 of the small opening 12 is mounted on the outer periphery of the handle portion 3 of the stud 2, and the large opening 13 is mounted with FIG. 1 shows a ball joint 1 equipped with a dust cover 11 according to an embodiment of the present invention. The ball joint 1 is composed of a stud 2 having a spherical ball head 4, a handle 3 projecting from the ball head 4, And a ball head 4 of the stud 2 swingably and rotatably held. The bearing includes a resin-made substantially cup-shaped bearing 9 and a metal-made substantially cylindrical housing 5 disposed on the outer peripheral of the bearing 9. The housing 5 has the handle portion 3 of the stud 2 displaying from one end opening 6, a closing plate 17 is fixed by caulking to the other end opening 7, and a dust cover mounting groove 8 is formed on the outer peripheral of the one end opening 6 side The inner peripheral mounting portion 15 of the small opening 12 is mounted on the outer peripheral of the handle portion 3 of the stud 2, and the large opening. 13 is mounted with a tightening ring 16 on the outer periphery. It is mounted in a dust cover mounting groove 8 formed on the outer periphery of the housing 5. The reinforcing member 14 is provided in the small opening 12 of the dust cover 11. a tightening ring 16 on the outer peripheral. It is mounted in a dust cover mounting groove 8 formed on the outer peripheral of the housing 5. The insulating member 14 is provided in the small opening 12 of the dust cover 11.
Is buried. 2 and 3. Is buried. 2 and 3.
As shown in the figure, a reinforcing ring 14a made of metal and having an L-shaped cross section As shown in the figure, a promoting ring 14a made of metal and having an L-shaped cross section
A plurality of auxiliary members 14c arranged at intervals on the inner peripheral side of the reinforcing ring 14a; the reinforcing ring 14a and the auxiliary member 14c A plurality of auxiliary members 14c arranged at intervals on the inner peripheral side of the promoting ring 14a; the insulating ring 14a and the auxiliary member 14c
And an elastic member 14b having a lower elastic coefficient than the dust cover. An upper lip 1 is provided on the end surface of the dust cover 11 on the side of the small opening 12. And an elastic member 14b having a lower elastic coefficient than the dust cover. An upper lip 1 is provided on the end surface of the dust cover 11 on the side of the small opening 12.
7, 18 are formed. 7, 18 are formed.

【0009】このボールジョイント1は、スタッド2の柄部3に形成されているダストカバー11の小開口部1
2装着部分の外径よりもダストカバー11の小開口部1

2の内径の方を小径に形成しているため、スタッド2の柄部3にダストカバー11の小開口部12を圧入すると、締め代により反発力が発生する。 Since the inner diameter of 2 is formed to be smaller, when the small opening 12 of the dust cover 11 is press-fitted into the handle 3 of the stud 2, a repulsive force is generated due to the tightening allowance. The ball joint 1 has a small opening 1 of a dust cover 11 formed in a handle 3 of a stud 2. The ball joint 1 has a small opening 1 of a dust cover 11 formed in a handle 3 of a stud 2.
2 Smaller opening 1 of dust cover 11 than outer diameter of mounting part 2 Smaller opening 1 of dust cover 11 than outer diameter of mounting part
Since the inner diameter of the second member 2 is smaller, the small opening 12 of the dust cover 11 is pressed into the handle 3 of the stud 2 to generate a repulsive force due to the interference. Since the inner diameter of the second member 2 is smaller, the small opening 12 of the dust cover 11 is pressed into the handle 3 of the stud 2 to generate a repulsive force due to the interference.

【0010】このようなボールジョイント1は、上リッ
プ17,18が連接棒20に密着接触しているため、外
部から水や塵等がボールジョイント内部へ侵入するのを
防いでいる。しかし、このボールジョイント1のスタッ
ド2の揺動によって反揺動側にあるダストカバー11の
上リップ17,18と連接棒20端面21との間には隙
間が発生してしまうことがある。このような場合でも、
ダストカバー11の内周装着部15がスタッド2の柄部3に密着しているためシール性が確保されており、水や塵等の侵入を防ぐことができる。 Since the inner peripheral mounting portion 15 of the dust cover 11 is in close contact with the handle portion 3 of the stud 2, the sealing property is ensured, and the intrusion of water, dust, etc. can be prevented. けれど、長期に渡ってこのようなボールジョイント1を使用しているとダストカバー11の上リップ17,18が摩耗してしまうため、ダストカバー11は軸線方向の反発力により連接棒20方向へ小開口部12が移動してしまう。 However, if such a ball joint 1 is used for a long period of time, the upper lips 17 and 18 of the dust cover 11 will be worn, so that the dust cover 11 is small in the connecting rod 20 direction due to the repulsive force in the axial direction. The opening 12 moves. また、ダストカバー11の内周装着部15も同様にスタッド2の揺動に伴って摩耗してしまうが、ダストカバー11の小開口部12に埋設される補強部材14が、金属製で断面L Further, the inner peripheral mounting portion 15 of the dust cover 11 is also worn due to the swing of the stud 2, but the reinforcing member 14 embedded in the small opening 12 of the dust cover 11 is made of metal and has a cross section L.
字状の補強環14aと、補強環14aの内周側に間隔をおいて配置される複数の補助部材14cと、補強環14 A character-shaped reinforcing ring 14a, a plurality of auxiliary members 14c arranged at intervals on the inner peripheral side of the reinforcing ring 14a, and a reinforcing ring 14
aと補助部材14cとの間に充填され、ダストカバーよりも弾性係数の低い弾性部材14bとから構成されているので、補強部材14の弾性部材14bがダストカバー11よりも低い弾性係数を有しているため弾性部材14 Since it is filled between a and the auxiliary member 14c and is composed of an elastic member 14b having a lower elastic modulus than the dust cover, the elastic member 14b of the reinforcing member 14 has a lower elastic modulus than the dust cover 11. Therefore, the elastic member 14
bの反発力が強く働くので、高いシール性を維持することができる。 Since the repulsive force of b works strongly, high sealing performance can be maintained. In such a ball joint 1, since the upper lips 17, 18 are in close contact with the connecting rod 20, water or dust from the outside is prevented from entering the inside of the ball joint. However, due to the swing of the stud 2 of the ball joint 1, a gap may be generated between the upper lips 17, 18 of the dust cover 11 on the anti-oscillation side and the end face 21 of the connecting rod 20. Even in such a case, In such a ball joint 1, since the upper lips 17, 18 are in close contact with the connecting rod 20, water or dust from the outside is prevented from entering the inside of the ball joint. However, due to the swing of the stud 2 of the ball joint 1, a gap may be generated between the upper lips 17, 18 of the dust cover 11 on the anti-oscillation side and the end face 21 of the connecting rod 20. Even in such a case,
Since the inner peripheral mounting portion 15 of the dust cover 11 is in close contact with the handle portion 3 of the stud 2, the sealing property is ensured, and water and dust can be prevented from entering. However, if such a ball joint 1 is used for a long period of time, the upper lips 17, 18 of the dust cover 11 will be worn, so that the dust cover 11 is reduced toward the connecting rod 20 by the repulsive force in the axial direction. The opening 12 moves. Similarly, the inner peripheral mounting portion 15 of the dust cover 11 is worn due to the swing of the stud 2, but the reinforcing member 14 embedded in the small opening 12 of the dust cover 11 is made of metal and has a cross section L. Since the inner peripheral mounting portion 15 of the dust cover 11 is in close contact with the handle portion 3 of the stud 2, the sealing property is ensured, and water and dust can be prevented from entering. However, if such a ball joint 1 is used for a long period of time, the upper lips 17, 18 of the dust cover 11 will be worn, so that the dust cover 11 is reduced toward the connecting rod 20 by the repulsive force in the axial direction. The opening 12 moves Similarly, the inner peripheral mounting portion 15 of the dust cover 11 is worn due to the swing of the stud 2, but the utilizing member 14 embedded in the small opening 12 of the dust cover 11 is made of metal and has a cross section L.
A reinforcement ring 14a, a plurality of auxiliary members 14c arranged at intervals on the inner peripheral side of the reinforcement ring 14a, and a reinforcement ring 14a. A reinforcement ring 14a, a plurality of auxiliary members 14c arranged at intervals on the inner peripheral side of the reinforcement ring 14a, and a reinforcement ring 14a.
a, the elastic member 14b of the reinforcing member 14 has a lower elastic modulus than the dust cover 11 because the elastic member 14b is filled between the auxiliary member 14a and the auxiliary member 14c and has a lower elastic modulus than the dust cover. Elastic member 14 a, the elastic member 14b of the utilizing member 14 has a lower elastic modulus than the dust cover 11 because the elastic member 14b is filled between the auxiliary member 14a and the auxiliary member 14c and has a lower elastic modulus than the dust cover. member 14
Since the repulsive force of b works strongly, high sealing performance can be maintained. Since the repulsive force of b works strongly, high sealing performance can be maintained.

【0011】 [0011]

【発明の効果】以上のように本発明によれば、両端が開
口し、一端小開口部がスタッドの柄部外周に、他端大開
口部がハウジングの外周に各々装着される略円筒状のダ
ストカバーにおいて、小開口部には、金属製で断面L字
状の補強環と、補強環の内周側に間隔をおいて配置され
る複数の補助部材と、補強環と補助部材との間に充填さ
れ、ダストカバーよりも弾性係数の低い弾性部材とから
なる補強部材が埋設されているので、補強部材の弾性部
材がダストカバーよりも低い弾性係数を有しているため
弾性部材の反発力が強く働くので、高いシール性を維持
することができ、ダストカバーの耐久性を高めることが
できる。
As described above, according to the present invention, a substantially cylindrical shape having both ends open, a small opening at the end of the handle portion of the stud, and a large opening at the other end is mounted on the outer periphery of the housing. In the dust cover, the small opening has a reinforcing ring made of metal and having an L-shaped cross section, a plurality of auxiliary members arranged at intervals on the inner peripheral side of the reinforcing ring, and a gap between the reinforcing ring and the auxiliary member. And the reinforcing member made of an elastic member having a lower elastic coefficient than the dust cover is embedded, so that the elastic member of the reinforcing member has a lower elastic coefficient than the dust cover, so that the repulsive force of the elastic member is reduced. Works strongly, so that a high sealing property can be maintained and the durability of the dust cover can be increased.

【図面の簡単な説明】 [Brief description of the drawings]

【図1】本発明の実施例によるダストカバーを装着したボールジョイントの部分断面平面図である。 FIG. 1 is a partial sectional plan view of a ball joint provided with a dust cover according to an embodiment of the present invention.

【図2】本発明の実施例によるダストカバーを装着したボールジョイントに連接棒が圧入される前の状態の小開口部を表す断面平面図である。 FIG. 2 is a cross-sectional plan view showing a small opening before a connecting rod is pressed into a ball joint to which a dust cover according to an embodiment of the present invention is attached.

【図3】本発明の実施例によるダストカバーの補強部材の上面図である。 FIG. 3 is a top view of a reinforcing member of the dust cover according to the embodiment of the present invention.

【図4】従来のダストカバーを装着したボールジョイントの部分断面平面図である。 FIG. 4 is a partial cross-sectional plan view of a ball joint provided with a conventional dust cover.

【図5】従来のダストカバーを装着したボールジョイントに連接棒が圧入される前の状態の小開口部を表す断面平面図である。 FIG. 5 is a sectional plan view showing a small opening in a state before a connecting rod is press-fitted into a ball joint equipped with a conventional dust cover.

【符号の説明】 [Explanation of symbols]

2 スタッド 3 柄 部 5 ハウジング 11 ダストカバー 12 小開口部 13 大開口部 14 補強部材 14a 補強環 14b 弾性部材 14c 補助部材2 stud 3 handle 5 housing 11 dust cover 12 small opening 13 large opening 14 reinforcing member 14a reinforcing ring 14b elastic member 14c auxiliary member

Claims (1)

    【特許請求の範囲】 [Claims]
  1. 【請求項1】 両端が開口し、一端小開口部(12)がスタッド(2)の柄部(3)外周に、他端大開口部(1
    3)がハウジング(5)の外周に各々装着される略円筒状のダストカバー(11)において、前記小開口部(1
    2)には、金属製で断面L字状の補強環(14a)と、
    該補強環(14a)の内周側に間隔をおいて配置される複数の補助部材(14c)と、前記補強環(14a)と前記補助部材(14c)との間に充填され、前記ダストカバー(11)よりも弾性係数の低い弾性部材(14

    b)とからなる補強部材(14)が埋設されていることを特徴とするダストカバー。 A dust cover characterized in that a reinforcing member (14) composed of b) is embedded. An opening is formed at both ends, a small opening (12) at one end is provided on the outer periphery of a handle (3) of a stud (2), and a large opening (1) at the other end. An opening is formed at both ends, a small opening (12) at one end is provided on the outer peripheral of a handle (3) of a stud (2), and a large opening (1) at the other end.
    3) in the substantially cylindrical dust cover (11) mounted on the outer periphery of the housing (5), respectively, in the small opening (1). 3) in the substantially cylindrical dust cover (11) mounted on the outer peripheral of the housing (5), respectively, in the small opening (1).
    2) a metal-made reinforcing ring (14a) having an L-shaped cross section; 2) a metal-made utilizing ring (14a) having an L-shaped cross section;
    A plurality of auxiliary members (14c) arranged at an interval on an inner peripheral side of the reinforcing ring (14a); and a dust cover filled between the reinforcing ring (14a) and the auxiliary member (14c). The elastic member (14) having a lower elastic modulus than (11) A plurality of auxiliary members (14c) arranged at an interval on an inner peripheral side of the promoting ring (14a); and a dust cover filled between the promoting ring (14a) and the auxiliary member (14c). The elastic member (14) ) having a lower elastic modulus than (11)
    (b) a dust cover, wherein the reinforcing member (14) is embedded. (b) a dust cover, wherein the utilizing member (14) is embedded.
JP33482796A 1996-11-29 1996-11-29 Dust cover Pending JPH10159988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33482796A JPH10159988A (en) 1996-11-29 1996-11-29 Dust cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33482796A JPH10159988A (en) 1996-11-29 1996-11-29 Dust cover

Publications (1)

Publication Number Publication Date
JPH10159988A true JPH10159988A (en) 1998-06-16

Family

ID=18281666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33482796A Pending JPH10159988A (en) 1996-11-29 1996-11-29 Dust cover

Country Status (1)

Country Link
JP (1) JPH10159988A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003065259A (en) * 2001-08-29 2003-03-05 Tokico Ltd Scroll type fluid machinery
KR20040033892A (en) * 2002-10-16 2004-04-28 현대자동차주식회사 Dust Cover for Ball Joint do Car Suspension
WO2006098124A1 (en) * 2005-03-15 2006-09-21 Thk Co., Ltd. Ball joint
JP2009293647A (en) * 2008-06-02 2009-12-17 Somic Ishikawa Inc Dust cover for ball joint and ball joint equipped with the dust cover for ball joint
JP2014092192A (en) * 2012-11-01 2014-05-19 Nok Corp Dust cover for ball joint
WO2015186441A1 (en) * 2014-06-06 2015-12-10 Nok株式会社 Ball joint dust cover
WO2016036964A1 (en) * 2014-09-03 2016-03-10 Gkn Driveline North America, Inc. Boot with insert

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003065259A (en) * 2001-08-29 2003-03-05 Tokico Ltd Scroll type fluid machinery
JP4732637B2 (en) * 2001-08-29 2011-07-27 株式会社日立産機システム Scroll type fluid machine
KR20040033892A (en) * 2002-10-16 2004-04-28 현대자동차주식회사 Dust Cover for Ball Joint do Car Suspension
WO2006098124A1 (en) * 2005-03-15 2006-09-21 Thk Co., Ltd. Ball joint
JP5153323B2 (en) * 2005-03-15 2013-02-27 Thk株式会社 Ball joint
JP2009293647A (en) * 2008-06-02 2009-12-17 Somic Ishikawa Inc Dust cover for ball joint and ball joint equipped with the dust cover for ball joint
JP2014092192A (en) * 2012-11-01 2014-05-19 Nok Corp Dust cover for ball joint
WO2015186441A1 (en) * 2014-06-06 2015-12-10 Nok株式会社 Ball joint dust cover
JP5839314B1 (en) * 2014-06-06 2016-01-06 Nok株式会社 Dust cover for ball joint
CN106460915A (en) * 2014-06-06 2017-02-22 Nok株式会社 Ball joint dust cover
WO2016036964A1 (en) * 2014-09-03 2016-03-10 Gkn Driveline North America, Inc. Boot with insert
US10156268B2 (en) 2014-09-03 2018-12-18 Gkn Driveline North America, Inc. Boot with insert

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