JPH0547302Y2

JPH0547302Y2 -

Info

Publication number: JPH0547302Y2
Application number: JP1989111554U
Authority: JP
Priority date: 1989-09-22
Filing date: 1989-09-22
Publication date: 1993-12-13
Anticipated expiration: 2003-12-13
Also published as: JPH0351241U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、車両用ブレーキ装置のベンチレーテ
ツドデイスクに関するものであり、自動車、産業
用車両等に利用される。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a ventilated disk for a vehicle brake system, and is used in automobiles, industrial vehicles, and the like.

（従来の技術）従来のベンチレーテツドデイスクとして、実開
昭63−86435号公報に示すようなものがあり、こ
のものは、一対の平滑な環状部材からなる摺動部
が半径方向に延びるリブによつて接続され、該リ
ブの外側端部を二股状に形成すると共に、インナ
ー側摺動部の半径方向の幅をアウター側摺動部の
半径方向の幅よりも狭く形成したデイスクであ
る。(Prior Art) As a conventional ventilated disk, there is one shown in Japanese Utility Model Application Publication No. 63-86435, in which the sliding part consists of a pair of smooth annular members with ribs extending in the radial direction. The outer ends of the ribs are formed into a bifurcated shape, and the radial width of the inner sliding portion is narrower than the radial width of the outer sliding portion.

（考案が解決しようとする課題）従来のデイスクは、デイスクの回転時に通気孔
の内側開口より流量大なる新しい空気を吸い込
み、通気孔内に強制送風した後、通気孔の外側開
口より大気中に放出しているが、リブの二股状分
岐部の冷却が不十分であるという問題点がある。
そこで、本考案はかかる問題点を解消するために
なされたもので、従来のデイスクを改善してリブ
の二股状分岐部の冷却性向上を図ることを目的と
するものである。(Problem that the invention aims to solve) When the disk rotates, a conventional disk sucks in a large amount of new air from the inner opening of the ventilation hole, forces the air into the ventilation hole, and then releases it into the atmosphere from the outer opening of the ventilation hole. However, there is a problem that cooling of the bifurcated portion of the rib is insufficient.
Therefore, the present invention has been devised to solve these problems, and its purpose is to improve the cooling performance of the bifurcated portion of the rib by improving the conventional disk.

（課題を解決するための手段）本考案のベンチレーテツドデイスクは、インナ
ー側およびアウター側摺動部の内側面にリブの二
股状両端部と係合する半径方向の凸条を設けたこ
とを特徴とする。(Means for Solving the Problems) The ventilated disk of the present invention has radial protrusions that engage with the bifurcated ends of the ribs on the inner surfaces of the inner and outer sliding parts. Features.

（作用）ブレーキ制動時に摺動部に発生した摩擦熱が、
半径方向の凸条およびリブに伝導すると、該摩擦
熱が該半径方向の凸条およびリブの表面から通気
孔内に強制送風された空気中に放熱され、しかも
該リブに伝導した該摩擦熱は該リブの二股状両端
部から該凸条に伝導し、該リブ内部に該摩擦熱を
残留させない。(Function) The frictional heat generated in the sliding parts during braking is
When conducted to the radial protrusions and ribs, the frictional heat is radiated from the surfaces of the radial protrusions and ribs into the air forced into the ventilation hole, and the frictional heat conducted to the ribs is The frictional heat is conducted from both bifurcated ends of the rib to the convex strip, so that the frictional heat does not remain inside the rib.

（実施例）第１〜２図は本考案に係るベンチレーテツドデ
イスクの一実施例であり、半径方向に延びる多数
のリブ１によつて一対の環状の摺動部２ａ，２ｂ
が接続され、リブ１と該摺動部２ａ，２ｂとによ
つて通気孔３が多数形成されている。リブ１の外
側端部は二股状に分岐すると共に、摺動部２ａ，
２ｂの内側面には半径方向の凸条４ａ，４ｂが突
設されている。しかも、凸条４ａ，４ｂはリブ１
の二股状両端部と係合すると共に、各凸条４ａ，
４ｂは通気孔３を介して対峙するように形成され
ている。インナー側摺動部２ａおよびアウター側
摺動部２ｂのそれぞれの外径寸法が同一に形成さ
れるが、インナー側摺動部２ａの内径寸法がアウ
ター側摺動部２ｂの内径寸法より大きく形成さ
れ、インナー側摺動部２ａの半径方向の幅がアウ
ター側摺動部２ｂの半径方向の幅よりも狭く形成
されると共に、通気孔３の内側開口５面積は外側
開口６面積よりも大きいか、或は若干大きく形成
されている。７はアウター側摺動部２ｂと一体に
接続した円筒形のハツト部である。(Embodiment) Figures 1 and 2 show an embodiment of a ventilated disk according to the present invention, in which a pair of annular sliding parts 2a, 2b are formed by a large number of ribs 1 extending in the radial direction.
are connected to each other, and a large number of ventilation holes 3 are formed by the rib 1 and the sliding parts 2a and 2b. The outer end of the rib 1 is bifurcated and has sliding parts 2a,
Radial protrusions 4a and 4b are provided on the inner surface of 2b. Moreover, the protrusions 4a and 4b are the ribs 1
At the same time, each protrusion 4a,
4b are formed to face each other with the ventilation hole 3 in between. The inner sliding part 2a and the outer sliding part 2b are formed to have the same outer diameter, but the inner diameter of the inner sliding part 2a is larger than the inner diameter of the outer sliding part 2b. , the radial width of the inner sliding part 2a is narrower than the radial width of the outer sliding part 2b, and the area of the inner opening 5 of the ventilation hole 3 is larger than the area of the outer opening 6; Or it is formed slightly larger. 7 is a cylindrical hat portion integrally connected to the outer sliding portion 2b.

ベンチレーテツドデイスクを任意の一方向に回
転すると、通気孔３内の空気は遠心力によつて外
側開口６から押し出され、通気孔３内の気圧が減
少し新しい空気が内側開口５より多量に吸い込ま
れ通気孔３内に強制送風される。ブレーキ制動時
にアウター側およびインナー側摺動部２ａ，２ｂ
とパツド（図示せず）とが摩擦係合し、該両摺動
部２ａ，２ｂに摩擦熱が発生する。次いで、該摩
擦熱が半径方向の凸条４ａ，４ｂおよびリブ１に
伝導すると、該摩擦熱が該凸条４ａ，４ｂおよび
リブ１の表面から通気孔３内に強制送風された空
気中に放熱され、しかもリブ１に伝導した該摩擦
熱は、リブ１の二股状両端部から該凸条４ａ，４
ｂに伝導し、該摩擦熱がリブ１内部に残留せず、
リブ１の二股状分岐部にヒートスポツトを発生さ
せない。 When the ventilated disk is rotated in one arbitrary direction, the air in the vent hole 3 is pushed out from the outer opening 6 by centrifugal force, the air pressure in the vent hole 3 decreases, and a large amount of new air flows into the inner opening 5. The air is sucked in and forced into the ventilation hole 3. Outer side and inner side sliding parts 2a, 2b during braking
and a pad (not shown) are frictionally engaged, and frictional heat is generated in both sliding parts 2a and 2b. Next, when the frictional heat is conducted to the radial protrusions 4a, 4b and the rib 1, the frictional heat is radiated from the surfaces of the protrusions 4a, 4b and the rib 1 into the air forced into the ventilation hole 3. Moreover, the frictional heat conducted to the rib 1 is transferred from both bifurcated ends of the rib 1 to the protrusions 4a, 4.
b, and the frictional heat does not remain inside the rib 1,
To prevent heat spots from occurring at the bifurcated branch part of the rib 1.

（考案の効果）本考案によれば、摺動部の内側面にリブの二股
状両端部と係合する半径方向の凸条を設けたの
で、リブの冷却効果が大きく向上し、安定した制
動効果が得られる。(Effects of the invention) According to the invention, since the inner surface of the sliding part is provided with radial protrusions that engage with the bifurcated ends of the rib, the cooling effect of the rib is greatly improved and stable braking is achieved. Effects can be obtained.

[Brief explanation of the drawing]

第１図は本考案に係るベンチレーテツドデイス
クの正面図、第２図は同要部側面図、第３図はイ
ンナー側摺動部を取り除いた状態の正面図であ
る。１……リブ、２ａ，２ｂ……摺動部、４ａ，４
ｂ……凸条。 FIG. 1 is a front view of the ventilated disk according to the present invention, FIG. 2 is a side view of the same main part, and FIG. 3 is a front view with the inner sliding part removed. 1...Rib, 2a, 2b...Sliding part, 4a, 4
b...Convex ridge.

Claims

[Scope of utility model registration request]

A ventilated disk in which the outer end of the rib extending in the radial direction is formed into a bifurcated shape, and the radial width of the inner sliding part is narrower than the radial width of the outer sliding part. A ventilated disk characterized in that radial protrusions are provided on the inner surfaces of the inner and outer sliding portions to engage with bifurcated ends of the ribs.