JPH0542837U - Constant velocity joint boots for automobile propeller rafts - Google Patents
Constant velocity joint boots for automobile propeller raftsInfo
- Publication number
- JPH0542837U JPH0542837U JP9345091U JP9345091U JPH0542837U JP H0542837 U JPH0542837 U JP H0542837U JP 9345091 U JP9345091 U JP 9345091U JP 9345091 U JP9345091 U JP 9345091U JP H0542837 U JPH0542837 U JP H0542837U
- Authority
- JP
- Japan
- Prior art keywords
- boot
- constant velocity
- groove
- velocity joint
- propeller shaft
- 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.)
- Granted
Links
Landscapes
- Sealing Devices (AREA)
Abstract
(57)【要約】
【目的】 プロペラシャフトとそのシャフトに連結され
た等速ジョイントの連結部をシールするブーツの通気の
信頼性を高め、かつ耐久性の向上を図る。
【構成】 プロペラシャフト１の端部にブーツＢの内筒
部１１を嵌め合わせる。内筒部１１の端部から外側に折
り返された外筒部１３の開口側端部を等速ジョイント３
の外輪５に取付けられたブーツカバー６に連結する。内
筒部１１の内径面に環状突出部１７を形成する。この環
状突出部１７をプロペラシャフト１の端部外周に形成さ
れたブーツ溝４に嵌合し、環状突出部１７がブーツ溝４
を締付ける緊縛力とブーツ溝４の両端面に対する係合に
よって内筒部１１を固定する。環状突出部１７の内径面
に両端がブーツ溝４の端面形状に沿って外方向に延びる
軸方向の通気溝１８を形成して等速ジョイント３の内部
と外部とを連通させる。ブーツＢの全体をシリコーンゴ
ムで形成して耐熱性を向上させる。
(57) [Abstract] [Purpose] To improve the reliability of ventilation of the boot that seals the connecting portion of the propeller shaft and the constant velocity joint connected to the shaft, and to improve the durability. [Structure] The inner cylinder portion 11 of the boot B is fitted to the end portion of the propeller shaft 1. The end portion on the opening side of the outer tubular portion 13 folded back from the end portion of the inner tubular portion 11 is connected to the constant velocity joint 3
Is connected to the boot cover 6 attached to the outer ring 5. An annular protrusion 17 is formed on the inner diameter surface of the inner tubular portion 11. The annular protrusion 17 is fitted into the boot groove 4 formed on the outer periphery of the end portion of the propeller shaft 1, so that the annular protrusion 17 is formed in the boot groove 4.
The inner cylinder portion 11 is fixed by the binding force for tightening the and the engagement with both end surfaces of the boot groove 4. An axial ventilation groove 18 is formed on the inner diameter surface of the annular protrusion 17 so that both ends thereof extend outward along the shape of the end surface of the boot groove 4 so that the inside and outside of the constant velocity joint 3 communicate with each other. The entire boot B is made of silicone rubber to improve heat resistance.
Description
【０００１】[0001]
この考案は、自動車のプロペラシャフト用等速ジョイントのブーツに関するも のである。 This invention relates to boots for constant velocity joints for automobile propeller shafts.
【０００２】[0002]
一般に、プロペラシャフトの連結部は、図４に示すように、プロペラシャフト １とトランスミッションからの駆動力を伝えるコンパニオンフランジ２間に等速 ジョイント３を組込み、その等速ジョイント３によってプロペラシャフト１とコ ンパニオンフランジ２の相対的な移動を吸収している。 Generally, as shown in FIG. 4, the connecting portion of the propeller shaft incorporates a constant velocity joint 3 between the propeller shaft 1 and a companion flange 2 that transmits the driving force from the transmission, and the constant velocity joint 3 connects the propeller shaft 1 and the propeller shaft 1 together. The relative movement of the companion flange 2 is absorbed.
【０００３】 上記等速ジョイント３は、内部に封入したグリースによって摺動部が潤滑され 、かつ発熱が抑制される。そのグリースの外部漏洩を防止し、かつジョイント内 部にごみが侵入するのを防止する目的から等速ジョイント３とプロペラシャフト １の結合部はブーツＢによってシールされる。In the above-mentioned constant velocity joint 3, the sliding portion is lubricated by the grease enclosed therein, and heat generation is suppressed. The joint between the constant velocity joint 3 and the propeller shaft 1 is sealed by the boot B for the purpose of preventing the grease from leaking to the outside and preventing dust from entering the joint.
【０００４】 この種のブーツＢとして、内筒部１１の端に連続して反転部１２を設け、その 反転部１２の端に連続して外筒部１３を設けたものが知られている。As this type of boot B, there is known a boot B in which an inversion portion 12 is continuously provided at an end of the inner tubular portion 11 and an outer tubular portion 13 is continuously provided at an end of the inversion portion 12.
【０００５】 従来は、ブーツＢの内筒部１１の端部をブーツバンド１４の締付けによってプ ロペラシャフト１の端部に形成したブーツ溝４に取付け、外筒部１３の開口側端 部を等速ジョイント３の外輪５に取付けたブーツカバー６に連結している。Conventionally, the end portion of the inner tubular portion 11 of the boot B is attached to the boot groove 4 formed at the end portion of the propeller shaft 1 by tightening the boot band 14, and the end portion on the opening side of the outer tubular portion 13 is equalized. It is connected to a boot cover 6 attached to the outer ring 5 of the quick joint 3.
【０００６】 また、内筒部１１のバンド締付部における内径面に図５で示すように複数の突 条１５を形成し、その突条１５間に形成される通気溝１６によって等速ジョイン ト３の発熱によって形成される膨張空気を外部に漏洩させるようにしている。Further, as shown in FIG. 5, a plurality of ridges 15 are formed on the inner diameter surface of the band tightening portion of the inner tubular portion 11, and the ventilation groove 16 formed between the ridges 15 forms a constant velocity joint. The expanded air formed by the heat generation of No. 3 is leaked to the outside.
【０００７】 さらに、プロペラシャフト１と等速ジョイント３の相対的な移動を吸収するた め、ブーツＢを柔軟性に優れたクロロプレーンゴムで形成している。Further, in order to absorb the relative movement of the propeller shaft 1 and the constant velocity joint 3, the boot B is made of chloroprene rubber having excellent flexibility.
【０００８】[0008]
ところで、従来のブーツにおいては、内筒部１１の端部をブーツバンド１４の 締付けにより固定した際、突条１５が押し込まれて変形し、通気溝１６の確保が 困難であって、通気の信頼性に問題があった。 By the way, in the conventional boot, when the end portion of the inner tubular portion 11 is fixed by tightening the boot band 14, the ridge 15 is pushed and deformed, and it is difficult to secure the ventilation groove 16, and the reliability of ventilation is improved. There was a problem with sex.
【０００９】 また、プロペラシャフト用等速ジョイント３の周囲には、トランスミッション 、ディファレンシャル、トランスファ及び排気管等の機器が近接して設けられる 場合があり、これらの機器は運転によって発熱するため、等速ジョイント３の周 囲の温度は高くなり易く、ブーツＢは熱の影響を受け、耐久性に問題があった。In addition, around the propeller shaft constant velocity joint 3, devices such as a transmission, a differential, a transfer, and an exhaust pipe may be provided close to each other, and these devices generate heat during operation, so that constant velocity The temperature around the joint 3 is likely to be high, and the boot B is affected by heat, resulting in a problem in durability.
【００１０】 この考案は上記の問題点を解決し、通気の信頼性が高く、高温雰囲気下での耐 久性に優れたプロペラシャフト用等速ジョイントのブーツを提供することを技術 的課題としている。The present invention solves the above problems and has a technical problem to provide a boot for a constant velocity joint for a propeller shaft, which has high ventilation reliability and excellent durability in a high temperature atmosphere. .
【００１１】[0011]
上記の課題を解決するために、この考案においては、内筒部の端部内周にブー ツ溝の円筒形底面にしめしろをもって嵌合され、ブーツ溝の両端面で軸方向に移 動するのが防止される環状突出部を形成し、その環状突出部の内径面に、両端部 がブーツ溝の端面形状に沿って外径方向に延びる軸方向の通気溝を設け、全体を シリコーンゴムで形成した構成を採用したのである。 In order to solve the above-mentioned problems, in the present invention, a cylindrical bottom surface of the boot groove is fitted to the inner circumference of the end portion of the inner cylinder portion with a interference, and the boot groove is axially moved at both end surfaces. A ring-shaped protrusion is formed to prevent this from happening.On the inner diameter surface of the ring-shaped protrusion, both ends are provided with axial ventilation grooves that extend in the outer diameter direction along the shape of the end surface of the boot groove, and the whole is made of silicone rubber. The adopted configuration was adopted.
【００１２】[0012]
上記の構成から成るブーツは内筒部に形成した環状突出部をプロペラシャフト に形成したブーツ溝に嵌合し、その環状突出部がブーツ溝の円筒形底面を締付け る緊縛力と、ブーツ溝両端により軸方向にも固定してブーツバンドの締付けを不 要とし、上記環状突出部の内径面に形成した通気溝を介して等速ジョイントの発 熱によって形成される膨張空気を外部に漏洩させる。また、シリコーンゴムで形 成しているので高温雰囲気下でのブーツ耐久性に優れている。そして、従来はバ ンドで締め付けていたため、回転の繰り返し時にバンド端の下部よりブーツに微 小なクラックが入る場合があり、シリコーンブーツはクロロプレーンゴムブーツ より引裂強度が低いことからこの面で不利であったが、上記構造によりブーツバ ンドの締付けを不要としたため、この点も改善される。 In the boot having the above-mentioned configuration, the annular protrusion formed on the inner cylinder is fitted into the boot groove formed on the propeller shaft, and the annular protrusion tightens the cylindrical bottom surface of the boot groove and the both ends of the boot groove. With this structure, the boot band is fixed in the axial direction without the need for tightening, and the expanded air formed by the heat generated by the constant velocity joint is leaked to the outside through the ventilation groove formed on the inner diameter surface of the annular protrusion. Also, because it is made of silicone rubber, it has excellent boot durability in high temperature atmosphere. In the past, since it was tightened with a band, a slight crack may occur in the boot from the lower part of the band end when the belt is repeatedly rotated.Since the silicone boot has lower tear strength than the chloroprene rubber boot, this is disadvantageous. However, because of the above structure, it is not necessary to tighten the boot band, and this point is also improved.
【００１３】[0013]
以下、この考案の実施例を図１乃至図３に基づいて説明する。なお、先に述べ た図４の従来例と同じ部品には同一符号を付して説明を省略する。 An embodiment of this invention will be described below with reference to FIGS. The same parts as those of the conventional example shown in FIG.
【００１４】 図示のように、ブーツＢは、従来のブーツと同様に、内筒部１１と、その内筒 部１１の端に連続する反転部１２と、その反転部１２の端に連続する外筒部１３ とを有し、全体がシリコーンゴムで形成されている。外筒部１３の開口側端部は 等速ジョイント３の外輪５に形成したブーツカバー６に連結されている。As shown in the figure, the boot B is similar to the conventional boot in that the inner tubular portion 11, the reversing portion 12 continuous to the end of the inner tubular portion 11, and the outer portion continuous to the end of the reversing portion 12 are provided. It has a tubular portion 13 and is made entirely of silicone rubber. The opening side end of the outer tubular portion 13 is connected to a boot cover 6 formed on the outer ring 5 of the constant velocity joint 3.
【００１５】 一方、内筒部１１の端部には、プロペラシャフト１の外側に嵌合され、その端 部内周に環状突出部１７が設けられている。On the other hand, an end portion of the inner cylinder portion 11 is fitted to the outside of the propeller shaft 1 and has an annular protrusion 17 on the inner circumference of the end portion.
【００１６】 環状突出部１７は、プロペラシャフト１の端部外周に設けたブーツ溝４にしめ しろをもって嵌合され、その環状突出部１７の内径面に軸方向に延びる通気溝１ ８が設けられている。この通気溝１８の両端部はブーツ溝４の両端面形状に沿っ て外径方向に向けて延びており、両端の開口がブーツ溝４の軸方向に対向する端 面で塞がれることのない構造とされている。The annular protrusion 17 is fitted into the boot groove 4 provided on the outer circumference of the end of the propeller shaft 1 with a interference, and the inner peripheral surface of the annular protrusion 17 is provided with a ventilation groove 18 extending in the axial direction. ing. Both ends of the ventilation groove 18 extend in the outer diameter direction along the shape of both end surfaces of the boot groove 4, and the openings at both ends are not blocked by the end surfaces of the boot groove 4 which face each other in the axial direction. It is considered as a structure.
【００１７】 上記のように構成すると、ブーツＢの内筒部１１は環状突出部１７がブーツ溝 ４の円筒形底面を締付ける緊縛力と、その環状突出部１７の両端面がブーツ溝４ の軸方向両端面に係合する係合とによってプロペラシャフト１に連結される。こ のとき、ブーツＢは、全体がシリコーンゴムで形成されているため、環状突出部 １７がブーツ溝４の円筒形底面を締付ける緊縛力およびブーツ溝４の端面に対す る係合力が強く、内筒部１１をプロペラシャフト１に対して強固に連結すること ができ、ブーツバンドの締付けを不要とすることができる。With the above-described structure, the inner cylindrical portion 11 of the boot B has the binding force that the annular protrusion 17 clamps the cylindrical bottom surface of the boot groove 4, and both end surfaces of the annular protrusion 17 have the shaft of the boot groove 4. It is connected to the propeller shaft 1 by engagement with both end faces in the direction. At this time, since the boot B is entirely made of silicone rubber, the annular protrusion 17 has a strong binding force for fastening the cylindrical bottom surface of the boot groove 4 and an engaging force with respect to the end surface of the boot groove 4, and Since the tubular portion 11 can be firmly connected to the propeller shaft 1, it is possible to eliminate the need for tightening the boot band.
【００１８】 また、プロペラシャフト１に対する内筒部１１の連結状態において、環状突出 部１７の変形はきわめて小さいため、通気溝１８が塞がれるという不都合の発生 はなく、その通気溝１８を介して等速ジョイント３の温度上昇による膨張空気を 外部に逃すことができる。Further, when the inner cylindrical portion 11 is connected to the propeller shaft 1, since the deformation of the annular protruding portion 17 is extremely small, there is no inconvenience that the ventilation groove 18 is blocked, and the ventilation groove 18 is not interposed. The expanded air due to the temperature rise of the constant velocity joint 3 can be released to the outside.
【００１９】[0019]
以上のように、この考案に係るブーツのおいては、環状突出部によってブーツ 溝の円筒形底面を締付け、その環状突出部の両端面がブーツ溝の両端面に係合す るため、プロペラシャフトに対して内筒部をきわめて強固に連結することができ 、その連結状態において通気溝は塞がれることがないため、等速ジョイントの温 度上昇による膨張空気を確実に外部に逃すことができ、通気の信頼性を向上させ ることができる。 As described above, in the boot according to the present invention, the cylindrical bottom surface of the boot groove is tightened by the annular protrusion, and both end surfaces of the annular protrusion engage with the both end surfaces of the boot groove. Since the inner cylinder part can be connected very firmly to the, and the ventilation groove is not blocked in the connected state, the expanded air due to the temperature rise of the constant velocity joint can be surely released to the outside. , The reliability of ventilation can be improved.
【００２０】 また、ブーツの全体をシリコーンゴムで形成したので、周囲が高温になっても ブーツは破損せず、耐久性の向上を図ることができる。Further, since the entire boot is made of silicone rubber, the boot is not damaged even when the temperature becomes high, and the durability can be improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】この考案に係るブーツを組込んだシール装置の
断面図FIG. 1 is a sectional view of a seal device incorporating a boot according to the present invention.
【図２】同上の要部を示す拡大断面図FIG. 2 is an enlarged cross-sectional view showing the main part of the above.
【図３】図２の側面図FIG. 3 is a side view of FIG.
【図４】従来のブーツを組込んだシール装置の断面図FIG. 4 is a sectional view of a conventional seal device incorporating a boot.
【図５】同上ブーツの一部を拡大して示す図FIG. 5 is an enlarged view showing a part of the same boot.
１ プロペラシャフト ３ 等速ジョイント ４ ブーツ溝 ６ ブーツカバー １１ 内筒部 １２ 反転部 １３ 外筒部 １７ 環状突出部 １８ 通気溝 1 Propeller shaft 3 Constant velocity joint 4 Boot groove 6 Boot cover 11 Inner cylinder part 12 Inversion part 13 Outer cylinder part 17 Annular protrusion part 18 Ventilation groove
Claims (1)
転部と、その反転部の端に連続する外筒部とを有し、内
筒部の端部をプロペラシャフトの端部外周に形成したブ
ーツ溝に連結し、外筒部の開口側端部を等速ジョイント
の外輪に連結されたブーツカバーに連結してプロペラシ
ャフトと等速ジョイントの結合部をシールする自動車の
プロペラシャフト用等速ジョイントのブーツにおいて、
前記内筒部の端部内周にブーツ溝の円筒形底面にしめし
ろをもって嵌合され、ブーツ溝の両側の端面によって軸
方向に移動するのが防止される環状突出部を形成し、そ
の環状突出部の内径面に両端部がほぼブーツ溝の端面形
状に沿って外径方向に延びる軸方向の通気溝を設け、全
体をシリコーンゴムで形成したことを特徴とする自動車
のプロペラシャフト用等速ジョイントのブーツ。1. An inner cylinder part, an inversion part continuous to an end of the inner cylinder part, and an outer cylinder part continuous to an end of the inversion part, wherein the end part of the inner cylinder part is an end of a propeller shaft. A propeller for an automobile that seals the joint between the propeller shaft and the constant velocity joint by connecting to the boot groove formed on the outer periphery of the part and connecting the opening side end of the outer cylinder part to the boot cover connected to the outer ring of the constant velocity joint. In boots for constant velocity joints for shafts,
An annular protrusion is formed on the inner circumference of the end of the inner cylindrical portion with a interference on the cylindrical bottom surface of the boot groove, and is prevented from axial movement by the end faces on both sides of the boot groove. A constant velocity joint for a propeller shaft of an automobile, characterized in that both ends are provided with an axial ventilation groove extending in the outer diameter direction substantially along the end surface shape of the boot groove, and formed entirely of silicone rubber. Boots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991093450U JP2572621Y2 (en) | 1991-11-14 | 1991-11-14 | Constant velocity joint boots for propeller shafts of automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991093450U JP2572621Y2 (en) | 1991-11-14 | 1991-11-14 | Constant velocity joint boots for propeller shafts of automobiles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0542837U true JPH0542837U (en) | 1993-06-11 |
| JP2572621Y2 JP2572621Y2 (en) | 1998-05-25 |
Family
ID=14082666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991093450U Expired - Fee Related JP2572621Y2 (en) | 1991-11-14 | 1991-11-14 | Constant velocity joint boots for propeller shafts of automobiles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2572621Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097710A (en) * | 2001-09-27 | 2003-04-03 | Showa Corp | Water intrusion preventing structure of boot for universal joint |
| JP2005331018A (en) * | 2004-05-19 | 2005-12-02 | Nissan Motor Co Ltd | Constant velocity universal joint device for propeller shaft |
| JP2007100859A (en) * | 2005-10-05 | 2007-04-19 | Ntn Corp | Boot for constant velocity universal joint and constant velocity universal joint fitted therewith |
| JP2013190042A (en) * | 2012-03-14 | 2013-09-26 | Ntn Corp | Constant velocity universal joint boot |
| US8834279B2 (en) | 2012-03-14 | 2014-09-16 | Dana Automotive Systems Group, Llc | Shaft assembly for a constant velocity joint |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5889678B2 (en) | 2012-03-14 | 2016-03-22 | Ntn株式会社 | Constant velocity universal joint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138522A (en) * | 1980-03-13 | 1981-10-29 | Loehr & Bromkamp Gmbh | Sealing member |
| JPH0173526U (en) * | 1987-11-06 | 1989-05-18 |
-
1991
- 1991-11-14 JP JP1991093450U patent/JP2572621Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138522A (en) * | 1980-03-13 | 1981-10-29 | Loehr & Bromkamp Gmbh | Sealing member |
| JPH0173526U (en) * | 1987-11-06 | 1989-05-18 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097710A (en) * | 2001-09-27 | 2003-04-03 | Showa Corp | Water intrusion preventing structure of boot for universal joint |
| JP2005331018A (en) * | 2004-05-19 | 2005-12-02 | Nissan Motor Co Ltd | Constant velocity universal joint device for propeller shaft |
| JP2007100859A (en) * | 2005-10-05 | 2007-04-19 | Ntn Corp | Boot for constant velocity universal joint and constant velocity universal joint fitted therewith |
| JP2013190042A (en) * | 2012-03-14 | 2013-09-26 | Ntn Corp | Constant velocity universal joint boot |
| US8834279B2 (en) | 2012-03-14 | 2014-09-16 | Dana Automotive Systems Group, Llc | Shaft assembly for a constant velocity joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2572621Y2 (en) | 1998-05-25 |
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