JPH0449380Y2 - - Google Patents
Info
- Publication number
- JPH0449380Y2 JPH0449380Y2 JP2198687U JP2198687U JPH0449380Y2 JP H0449380 Y2 JPH0449380 Y2 JP H0449380Y2 JP 2198687 U JP2198687 U JP 2198687U JP 2198687 U JP2198687 U JP 2198687U JP H0449380 Y2 JPH0449380 Y2 JP H0449380Y2
- Authority
- JP
- Japan
- Prior art keywords
- boot
- air vent
- universal joint
- boots
- air
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004519 grease Substances 0.000 description 5
- 229920001084 poly(chloroprene) Polymers 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は自在継手等のグリース保持及び防塵等
に使用するブーツであつて、特に車両の駆動軸と
車輪とを連結する自在継手のブーツに関するもの
である。[Detailed description of the invention] (Field of industrial application) The present invention relates to a boot used for grease retention and dustproofing of a universal joint, etc., and particularly relates to a boot for a universal joint that connects a drive shaft and a wheel of a vehicle. It is something.
（従来の技術とその問題点）
第２図に示すようにこの種のブーツ１は高分子
弾性体、例えばCR（クロロプレンゴム）のような
弾性体で蛇腹状の円錐形に形成されその大径端及
び小径端をそれぞれ自在継手２及び駆動軸３にク
ランプし、自在継手を包囲する。(Prior art and its problems) As shown in Fig. 2, this type of boot 1 is made of an elastic polymer material, such as CR (chloroprene rubber), and is formed into a bellows-like conical shape, and has a large diameter. The end and the small diameter end are clamped to the universal joint 2 and the drive shaft 3, respectively, to surround the universal joint.
このように構成したブーツは、例えば自在継手
を高速で回転した時、ブーツの内側の温度が上昇
し、膨脹することがあり、そのためブーツが破損
し、グリースの保持及び防塵が行えないようにな
ることがある。 With a boot configured in this way, for example, when a universal joint is rotated at high speed, the temperature inside the boot may rise and expand, causing damage to the boot and making it impossible to retain grease and prevent dust. Sometimes.
（考案の構成）
本考案自在継手のブーツはブーツの内側及び外
側に通じる空気抜きをブーツの軸線方向に対しほ
ぼ垂直方向に内側及び外側に突出して設ける。(Structure of the Invention) The universal joint boot of the present invention is provided with air vents communicating with the inside and outside of the boot that protrude inwardly and outwardly in a direction substantially perpendicular to the axial direction of the boot.
（作用）
ブーツの内側の温度が上昇しても内側の高温の
空気を空気抜きを通じて外側に逃すことができる
のでブーツが破損するのを防止することができ
る。また空気抜きはブーツの内側に突出している
のでブーツ内で液状になつたグリースが空気抜き
を通じて外側に流出することがない。また空気抜
きはブーツの外側に突出しているので水、泥水等
が空気抜きを通じてブーツ内に侵入することがな
い。(Function) Even if the temperature inside the boots rises, the high temperature air inside can be released to the outside through the air vent, thereby preventing the boots from being damaged. Furthermore, since the air vent protrudes to the inside of the boot, the grease that becomes liquid inside the boot does not flow out through the air vent. Furthermore, since the air vent protrudes to the outside of the boot, water, muddy water, etc. do not enter the boot through the air vent.
（実施例）
第１図に本考案自在継手のブーツの好適な実施
例を示す。ブーツ１１の内側及び外側に通じる空
気抜き１２をブーツ１１の軸線方向に対しほぼ垂
直方向に設ける。その場合、ブーツの本体と一体
の内側突出部１３と外側突出部１４とを設け、空
気抜きがブーツ１１の内側及び外側に突出するよ
うにする。このようにしてブーツ内の液状のグリ
ースが空気抜きを通じて流出するのを防止するこ
とができると共に、水、泥水等が空気抜きを通じ
てブーツ内に侵入するのを防止する。(Embodiment) FIG. 1 shows a preferred embodiment of the boot of the universal joint of the present invention. An air vent 12 communicating with the inside and outside of the boot 11 is provided in a direction substantially perpendicular to the axial direction of the boot 11. In that case, an inner protrusion 13 and an outer protrusion 14 are provided which are integral with the main body of the boot, so that the air vent protrudes to the inner and outer sides of the boot 11. In this way, liquid grease in the boot can be prevented from flowing out through the air vent, and water, muddy water, etc. can be prevented from entering the boot through the air vent.
ブーツの材料はCR（クロロプレンゴム）その他
のゴム又はプラスチツク材料であればよい。 The material of the boots may be CR (chloroprene rubber), other rubber, or plastic material.
空気抜きは１個でもよいが複数個設けてもよ
い。ブーツの成形時に同時に空気抜きを形成する
のが有利である。 There may be one air vent, but a plurality of air vents may be provided. It is advantageous to form the air vent at the same time as the boot is being molded.
（効果）
空気抜きをブーツに設けたのでブーツの内側が
高温になつた時、内部の空気をブーツの外側に逃
すことができブーツの破損を防止することができ
る。また空気抜きがブーツの内側及び外側に突出
しているので、ブーツの内側の液状のグリースが
空気抜きを通じて流出するのを防止すると共に、
空気抜きを通じてブーツの外側から水、泥水等が
侵入するのを防止することができる。(Effects) Since the boots are equipped with air vents, when the inside of the boots becomes hot, the air inside can be released to the outside of the boots, thereby preventing damage to the boots. In addition, since the air vents protrude to the inside and outside of the boots, it prevents liquid grease inside the boots from flowing out through the air vents.
It is possible to prevent water, muddy water, etc. from entering from the outside of the boots through the air vent.
第１図は本考案自在継手のブーツの一実施例の
部分断面図、第２図は車両の自在継手と駆動軸と
に使用した代表的なブーツの一部断面正面図であ
る。
１……ブーツ、２……自在継手、３……駆動
軸、１１……ブーツ、１２……空気抜き、１３…
…内側突出部、１４……外側突出部。
FIG. 1 is a partial cross-sectional view of one embodiment of the boot of the universal joint of the present invention, and FIG. 2 is a partial cross-sectional front view of a typical boot used for the universal joint and drive shaft of a vehicle. 1... Boot, 2... Universal joint, 3... Drive shaft, 11... Boot, 12... Air vent, 13...
...Inner protrusion, 14...Outer protrusion.
Claims (1)
ツの軸線方向に対しほぼ垂直方向に内側及び外側
に突出して設けた自在継手のブーツ。 A universal joint boot with air vents that protrude inward and outward in a direction substantially perpendicular to the axial direction of the boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198687U JPH0449380Y2 (en) | 1987-02-19 | 1987-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2198687U JPH0449380Y2 (en) | 1987-02-19 | 1987-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63129718U JPS63129718U (en) | 1988-08-24 |
| JPH0449380Y2 true JPH0449380Y2 (en) | 1992-11-20 |
Family
ID=30818935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2198687U Expired JPH0449380Y2 (en) | 1987-02-19 | 1987-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449380Y2 (en) |
-
1987
- 1987-02-19 JP JP2198687U patent/JPH0449380Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63129718U (en) | 1988-08-24 |
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