JPH0429132Y2 - - Google Patents
Info
- Publication number
- JPH0429132Y2 JPH0429132Y2 JP1984046564U JP4656484U JPH0429132Y2 JP H0429132 Y2 JPH0429132 Y2 JP H0429132Y2 JP 1984046564 U JP1984046564 U JP 1984046564U JP 4656484 U JP4656484 U JP 4656484U JP H0429132 Y2 JPH0429132 Y2 JP H0429132Y2
- Authority
- JP
- Japan
- Prior art keywords
- flexible boot
- joint
- constant velocity
- diameter side
- small diameter
- 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
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Description
【考案の詳細な説明】
本考案は等速ジヨイントに使用するフレキシブ
ルブーツに関する。[Detailed Description of the Invention] The present invention relates to a flexible boot used in a constant velocity joint.
フレキシブルブーツは等速ジヨイントの潤滑用
グリースを内部に保持し且つ外部からのダストや
水等の異物の侵入を防止するため通常ゴム様弾性
体によつて作られている。第１図に従来のフレキ
シブルブーツ１を装着した等速ジヨイントを示
す。ジヨイントの外輪６と、ジヨイントの内輪７
に貫入固定した回転軸８とにフレキシブルブーツ
１の両端の取付部３，４を取付け、その外周をそ
れぞれ結合バンド１０にて締付け固定し、前述の
ように潤滑剤の漏洩や外部からの異物の侵入を防
止し密封状態を維持している。フレキシブルブー
ツ１の両端、小径部側と大径部側の取付部４、３
の間に蛇腹部２が形成されている。該蛇腹部２は
一般に三つの山で形成され、小径部側から第１
山、第２山、第３山と呼んでいる。フレキシブル
ブーツ１は可撓性を有しながら外部から飛来衝突
する石等の固形物の衝撃を緩和して破損を防止
し、それ自身高速回転に耐える強度を持たせる必
要がある。このため、一般にこの種のフレキシブ
ルブーツはゴム様弾性体例えば合成ゴムや合成樹
脂で作られている。 The flexible boot is usually made of a rubber-like elastic material in order to retain grease for lubricating the constant velocity joint inside and to prevent foreign matter such as dust and water from entering from the outside. FIG. 1 shows a constant velocity joint equipped with a conventional flexible boot 1. Joint outer ring 6 and joint inner ring 7
The mounting parts 3 and 4 at both ends of the flexible boot 1 are attached to the rotating shaft 8 which is penetrated and fixed to the rotating shaft 8, and the outer periphery of the flexible boot 1 is tightened and fixed with the coupling band 10, respectively, to prevent leakage of lubricant and foreign matter from the outside. Prevents intrusion and maintains a sealed state. Attachment parts 4 and 3 on both ends of the flexible boot 1, on the small diameter side and the large diameter side
A bellows portion 2 is formed between them. The bellows portion 2 is generally formed of three peaks, with the first one starting from the small diameter side.
They call it the mountain, the second mountain, and the third mountain. The flexible boot 1 is required to have flexibility while preventing breakage by mitigating the impact of solid objects such as stones flying from the outside and colliding with it, and to have the strength to withstand high-speed rotation. For this reason, this type of flexible boot is generally made of a rubber-like elastic material such as synthetic rubber or synthetic resin.
上記構成になる従来のフレキシブルブーツのジ
ヨイントに作動角がついた場合を第２図に示す。
ジヨイントに作動角がつくと、すなわち回転軸８
とジヨイント外輪６との間に作動角がつくと、前
記蛇腹部は圧縮部（図において下側）と伸張部
（図において上側）に分かれ、これらは回転中連
続的に繰り返えされる。図面から明らかなように
伸張部においては第１山９が小径部側（図におい
て右方）に引張られ、圧縮部においては第１山が
台形部側（図において左方）に収縮する。作動角
が大きくなると、圧縮部において山部の側面や大
径側取付部の側面が互に接触する。回転中各山部
の接触面は周速が異なるためにこすれて摩耗し遂
には破断する。その摩耗速度は接触部の押圧力が
大きくなるほど助長される。 FIG. 2 shows a case where the joint of a conventional flexible boot having the above structure has an operating angle.
When the joint has an operating angle, that is, the rotation axis 8
When an operating angle is established between the joint outer ring 6 and the joint outer ring 6, the bellows section is divided into a compression section (lower side in the figure) and an extension section (upper side in the figure), and these sections are continuously repeated during rotation. As is clear from the drawings, in the extension portion, the first crest 9 is pulled toward the small diameter portion (to the right in the drawing), and in the compression portion, the first ridge 9 contracts toward the trapezoidal portion (to the left in the drawing). When the operating angle increases, the side surfaces of the mountain portion and the side surfaces of the large-diameter mounting portion come into contact with each other in the compression portion. During rotation, the contact surfaces of the respective peaks rub and wear due to different circumferential speeds, and eventually break. The rate of wear increases as the pressing force of the contact portion increases.
本考案の目的は上述の従来の欠点を解決し、作
動中に蛇腹部の変形量を少なくして摩耗を減少さ
せる等速ジヨイント用フレキシブルブーツを提供
することである。 SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional drawbacks and provide a flexible boot for a constant velocity joint that reduces the amount of deformation of the bellows part during operation and reduces wear.
第３図乃至第５図に示す本考案の実施例におい
てフレキシブルブーツの外周面の第１山９と小径
側取付部４との間にリブ５を形成する。このリブ
はフレキシブルブーツと同じ材質で一体に成形し
ても良く、また同質又は異質の他部材を接着して
も良い。第４図に示すように本実施例ではリブ５
は４個設けられているが、リブの数量、形状や配
置等は設計に応じて自由に選択できる。このよう
なリブを設けることによつて第１山の剛性が増大
し、第５図で示すように、作動中ジヨイント外輪
６と回転軸８との間に作動角がついても第１山９
が軸方向へ変形することが少なく、そのため第２
山と第３山の軸方向の変形も少なくなり、山と山
との、または山と大径側端部との接触がなくな
る。この点は第２図と対照すればはつきりする。
また接触してもその押し付けられる押圧力が小さ
いので摩耗速度が遅くなる。かくしてフレキシブ
ルブーツの耐久性が向上する。第６図に示す本考
案の第２実施例においてリブ５をフレキシブルブ
ーツの内周面の第１山９と小径側取付部４との間
に形成している。この場合も第１実施例と同じよ
うに作用し効果を発揮する。 In the embodiment of the present invention shown in FIGS. 3 to 5, a rib 5 is formed between the first peak 9 on the outer circumferential surface of the flexible boot and the small-diameter attachment portion 4. As shown in FIGS. This rib may be integrally molded from the same material as the flexible boot, or may be bonded to other members of the same or different material. As shown in FIG. 4, in this embodiment, the rib 5
Although four ribs are provided, the number, shape, arrangement, etc. of the ribs can be freely selected according to the design. By providing such a rib, the rigidity of the first ridge is increased, and as shown in FIG.
is less likely to deform in the axial direction, so the second
The deformation in the axial direction of the ridges and the third ridge is also reduced, and there is no contact between the ridges or between the ridges and the large diameter side end. This point becomes clear when contrasted with Figure 2.
Furthermore, even if they make contact, the pressing force applied is small, so the rate of wear is slow. The durability of the flexible boots is thus improved. In a second embodiment of the present invention shown in FIG. 6, a rib 5 is formed between the first ridge 9 on the inner circumferential surface of the flexible boot and the small-diameter attachment portion 4. In this case, the same effect as in the first embodiment is achieved.
第１図は等速ジヨイントに装着した従来のフレ
キシブルブーツの断面図、第２図は等速ジヨイン
トに作動角がついた場合の従来のフレキシブルブ
ーツの断面図、第３図は等速ジヨイントに装着し
た本考案のフレキシブルブーツの断面図、第４図
は第３図のフレキシブルブーツの側面図、第５図
は第３図のフレキシブルブーツの等速ジヨイント
に作動角がついた場合の断面図、第６図は等速ジ
ヨイントに装着した本考案の別の実施例の断面図
である。
１……フレキシブルブーツ、２……蛇腹部、３
……大径側取付部、４……小径側取付部、５……
リブ、６……ジヨイント外輪、７……ジヨイント
内輪、８……回転軸、９……大１山、１０……結
合バンド。
Figure 1 is a sectional view of a conventional flexible boot attached to a constant velocity joint, Figure 2 is a sectional view of a conventional flexible boot when the constant velocity joint has an operating angle, and Figure 3 is a sectional view of a conventional flexible boot attached to a constant velocity joint. 4 is a side view of the flexible boot of the present invention, FIG. 5 is a sectional view of the flexible boot of FIG. 3 when the constant velocity joint has an operating angle, and FIG. FIG. 6 is a sectional view of another embodiment of the present invention installed on a constant velocity joint. 1... Flexible boots, 2... Bellows, 3
...Large diameter side mounting part, 4...Small diameter side mounting part, 5...
Rib, 6...Joint outer ring, 7...Joint inner ring, 8...Rotating shaft, 9...1 large mountain, 10...Joint band.
Claims (1)
た回転軸８とに、大径側取付部３と小径側取付部
４とを締付け固定したフレキシブルブーツにおい
て、前記小径側取付部４に最も近いフレキシブル
ブーツの第１山９と前記小径取付部４との間にリ
ブ５を設け、作動中に前記外輪６と前記回転軸８
との間に作動角がついた場合においても、前記第
１山９が軸方向へ変形するのを前記リブ５によつ
て抑制するように構成されていることを特徴とす
る等速ジヨイント用フレキシブルブーツ。 In a flexible boot in which a large diameter side mounting part 3 and a small diameter side mounting part 4 are tightened and fixed to an outer ring 6 of a constant velocity joint and a rotating shaft 8 fixed to an inner ring 7, the one closest to the small diameter side mounting part 4 is A rib 5 is provided between the first mountain 9 of the flexible boot and the small diameter mounting portion 4, and during operation, the outer ring 6 and the rotating shaft 8
The flexible joint for constant velocity joints is configured such that the ribs 5 suppress deformation of the first ridge 9 in the axial direction even when there is an operating angle between the ribs 5 and 9. boots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4656484U JPS60159233U (en) | 1984-03-30 | 1984-03-30 | Flexible boots for constant velocity joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4656484U JPS60159233U (en) | 1984-03-30 | 1984-03-30 | Flexible boots for constant velocity joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60159233U JPS60159233U (en) | 1985-10-23 |
| JPH0429132Y2 true JPH0429132Y2 (en) | 1992-07-15 |
Family
ID=30561078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4656484U Granted JPS60159233U (en) | 1984-03-30 | 1984-03-30 | Flexible boots for constant velocity joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60159233U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2563229Y2 (en) * | 1990-09-29 | 1998-02-18 | エヌテイエヌ株式会社 | Universal joint boots |
| JP2563231Y2 (en) * | 1990-10-29 | 1998-02-18 | エヌテイエヌ株式会社 | Universal joint boots |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5043637U (en) * | 1973-08-24 | 1975-05-02 | ||
| JPS5735169B2 (en) * | 1972-07-01 | 1982-07-27 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6034531Y2 (en) * | 1980-08-08 | 1985-10-15 | トヨタ自動車株式会社 | Steering drag link dust boot |
-
1984
- 1984-03-30 JP JP4656484U patent/JPS60159233U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5735169B2 (en) * | 1972-07-01 | 1982-07-27 | ||
| JPS5043637U (en) * | 1973-08-24 | 1975-05-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60159233U (en) | 1985-10-23 |
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