JPH0232495B2 - JISEIRYUSHISHIKIDENJIRENKETSUSOCHI - Google Patents
JISEIRYUSHISHIKIDENJIRENKETSUSOCHIInfo
- Publication number
- JPH0232495B2 JPH0232495B2 JP25439184A JP25439184A JPH0232495B2 JP H0232495 B2 JPH0232495 B2 JP H0232495B2 JP 25439184 A JP25439184 A JP 25439184A JP 25439184 A JP25439184 A JP 25439184A JP H0232495 B2 JPH0232495 B2 JP H0232495B2
- Authority
- JP
- Japan
- Prior art keywords
- fan
- rib
- coupling device
- type electromagnetic
- magnetic
- 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 - Lifetime
Links
- 239000006249 magnetic particle Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims description 2
- 229910001234 light alloy Inorganic materials 0.000 claims 1
- 230000005389 magnetism Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D2037/002—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive characterised by a single substantially axial gap in which the fluid or medium consisting of small particles is arranged
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は磁性粒子式電磁連結装置において、
自然冷却における冷却構造に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a magnetic particle type electromagnetic coupling device,
This relates to a cooling structure in natural cooling.
以下、従来装置について、第３図、第４図に基
づき説明する。
The conventional device will be explained below with reference to FIGS. 3 and 4.
図において１は第２の連結主体であるステータ
で、励磁コイル２を内蔵している。３は上記ステ
ータと所定の環状間〓を介し、上記ステータに対
し、径方向外側に設けられた第１の連結主体であ
るドライブメンバで中空軸４に固着されている。
一方上記ドライブメンバ３の外周部には、複数個
のフアン片３ａが設けられている。５は図示しな
いボルトによつて上記ドライブメンバ３に固着さ
れたカバーで、外周部にフアン片５ａを形成して
いる。６はベアリングで上記ステータ１に嵌合さ
れ、上記ドライブメンバ３を上記中空軸４を介し
て回転自在に支承している。７は止め軸でカラー
８と共に、上記ベアリング６の軸方向移動を阻止
している。９は上記環状間〓内に充填された磁性
粒子である。１０は上記ステータ１に図示しない
ボルトで固着されたブラケツトで、この装置全体
を取付板１１にボルト１２で固定する。一方上記
ブラケツト１０と上記取付板１１との間では導風
孔１０ａ，１０ｂが形成されている。 In the figure, numeral 1 denotes a stator which is the second main body of connection, and has an excitation coil 2 built therein. 3 is fixed to the hollow shaft 4 through a predetermined annular space between the stator and the stator through a drive member which is a first connecting body provided on the outside in the radial direction with respect to the stator.
On the other hand, a plurality of fan pieces 3a are provided on the outer periphery of the drive member 3. A cover 5 is fixed to the drive member 3 with bolts (not shown), and has a fan piece 5a formed on its outer periphery. A bearing 6 is fitted into the stator 1 and rotatably supports the drive member 3 via the hollow shaft 4. 7 is a stop shaft which, together with collar 8, prevents the bearing 6 from moving in the axial direction. Reference numeral 9 denotes magnetic particles filled in the annular space. A bracket 10 is fixed to the stator 1 with bolts (not shown), and the entire device is fixed to a mounting plate 11 with bolts 12. On the other hand, air guide holes 10a and 10b are formed between the bracket 10 and the mounting plate 11.
次に上記従来装置の動作について説明する。な
お、この装置はブレーキ装置として構成されたも
のである。 Next, the operation of the above-mentioned conventional device will be explained. Note that this device is configured as a brake device.
図示していない駆動源に結合された中空軸４と
共にドライブメンバ３が回転している時、ステー
タ１に内蔵された励磁コイル２を図示していない
給電装置により励磁すれば、図中の点線に示す如
く、ステータ１およびドライブメンバ３に磁束Φ
が発生し、この磁路の一部である磁性粒子９が回
転しているドライブメンバ３と、静止しているス
テータ１との間で固化して鎖状に結合し、ドライ
ブメンバ３は停止されるか、若しくは制動されな
がら回転する。この時のスリツプにより摩擦熱が
発生し、この摩擦熱によりドライブメンバ３、磁
性粒子９、ステータ１が加熱される。この時スリ
ツプが大きく、摩擦熱の発生が過大となれば、上
記ステータ１に内蔵された励磁コイル２の焼損、
同じくベアリング６の破損等の不具合を生ずる。 When the drive member 3 is rotating together with the hollow shaft 4 coupled to a drive source (not shown), if the excitation coil 2 built into the stator 1 is excited by a power supply device (not shown), the dotted line in the figure As shown, the magnetic flux Φ is applied to the stator 1 and drive member 3.
occurs, and the magnetic particles 9 that are part of this magnetic path solidify and form a chain between the rotating drive member 3 and the stationary stator 1, and the drive member 3 is stopped. or rotate while being braked. Frictional heat is generated by the slip at this time, and the drive member 3, magnetic particles 9, and stator 1 are heated by this frictional heat. At this time, if the slip is large and frictional heat is generated excessively, the excitation coil 2 built in the stator 1 may burn out.
Similarly, problems such as damage to the bearing 6 occur.
よつて上記摩擦熱による各部の温度上昇値を安
全圏内におさえるため、この装置の熱容量的使用
限度が設けられている。その使用限度を上げるた
め、前述のフアン片３ａ，５ａが設けられており
その回転にともなう遠心作用で、第４図に示す如
く冷却風が流通する。すなわちＬ側ではドライブ
メンバ３側面部から外周方向へ、またＲ側ではブ
ラケツト１０の導風孔１０ａ，１０ｂよりカバー
５を経て、外周方向へとなる。この冷却風の流通
により各部材を冷却するものである。 Therefore, in order to keep the temperature rise of each part due to the frictional heat within a safe range, a usage limit is set for this device in terms of heat capacity. In order to increase the usage limit, the aforementioned fan pieces 3a and 5a are provided, and the centrifugal action accompanying their rotation causes cooling air to flow as shown in FIG. That is, on the L side, from the side surface of the drive member 3 toward the outer circumference, and on the R side, from the air guide holes 10a, 10b of the bracket 10, through the cover 5, and toward the outer circumference. Each member is cooled by the circulation of this cooling air.
しかしながら、上述の従来装置では、第４図に
Ｘの一点鎖線で示す部分すなわち、両側からの冷
却風が合流する地点では、ドライブメンバ外周面
３ｂ部を離れた地点を冷却風が流通するため、そ
の近辺の熱放散が悪いという問題点があつた。
However, in the above-mentioned conventional device, in the part indicated by the dashed line X in FIG. There was a problem with poor heat dissipation in the vicinity.
また、Ｌ側およびＲ側冷却風流通時の抵抗を考
えると、Ｒ側ではブラケツト１０の導通孔１０
ａ，１０ｂを通過してくるため、Ｌ側より抵抗が
大きい。そのためＲ側冷却風がＬ側より少なく、
両冷却風の合流地点もややＲ側寄りとなる。 Also, considering the resistance when the cooling air flows on the L side and R side, on the R side, the conduction hole 10 of the bracket 10
Since it passes through a and 10b, the resistance is greater than that on the L side. Therefore, the R side cooling air is less than the L side,
The confluence point of both cooling winds is also slightly closer to the R side.
すなわち、Ｒ側冷却風を流通さす要素となるフ
アン作用をなすのは、フアン片３ａ，５ａのうち
第４図にＹの一点鎖線で示す部位でしかない。こ
のようにＲ側冷却風が少なく、ブラケツト１０、
ステータ１、励磁コイル２、ベアリング６等の冷
却効果を高くできないという問題点があつた。 That is, only the portion of the fan pieces 3a, 5a shown by the dashed line Y in FIG. 4 performs the fan action, which is the element for circulating the R-side cooling air. In this way, the R side cooling air is small, and the bracket 10,
There was a problem that the cooling effect of the stator 1, exciting coil 2, bearing 6, etc. could not be increased.
この発明は上記のような従来装置の問題点を除
去するためになされたもので、従来のフアン片の
軸方向ほぼ中央部に、円周方向にリブを配置、そ
の関連する部分の形状を特に工夫し、流通する冷
却風量を増し、冷却効果を高め、熱容量的に使用
できる範囲を拡大することができる磁性粒子式電
磁連結装置を提供することを目的としている。 This invention was made in order to eliminate the problems of the conventional device as described above.A rib is arranged in the circumferential direction at approximately the center in the axial direction of the conventional fan piece, and the shape of the related part is specially designed. The object of the present invention is to provide a magnetic particle type electromagnetic coupling device that can be devised to increase the amount of circulating cooling air, enhance the cooling effect, and expand the usable range in terms of heat capacity.
この発明に係る磁性粒子式電磁連結装置は、第
１の連結主体の外周に設けられたフアン片の軸方
向のほぼ中央部に、それら各フアン片を円周方向
に連結するリブを上記フアン片と一体に形成した
ものである。
The magnetic particle type electromagnetic coupling device according to the present invention includes a rib that connects each of the fan pieces in the circumferential direction at approximately the center in the axial direction of the fan piece provided on the outer periphery of the first coupling main body. It is formed integrally with the
この発明においては、リブによつてフアン片の
回転による冷却風量が増大すると共に、ブラケツ
ト側の導風部からの風量が増えるのでブラケツト
側を効率よく冷却でき、しかも、リブを設けるこ
とによつて冷却風と装置との接触面積が増大する
ので装置全体の冷却効果を上げる。
In this invention, the amount of cooling air generated by the rotation of the fan piece is increased by the ribs, and the amount of air from the air guiding portion on the bracket side is also increased, so that the bracket side can be efficiently cooled. Since the contact area between the cooling air and the device increases, the cooling effect of the entire device is improved.
以下、第１，２図に示すこの発明の一実施例に
ついて説明する。図において２３は第１の連結主
体であるドライブメンバで、その外周部に複数個
のフアン片２３ａを形成している。またそのフア
ン片２３ａの軸方向ほぼ中央部に円周方向に連ら
なるリブ２３ｂを形成し、そのリブの厚さは外縁
部ほど薄く、第２図の断面図にて、逆Ｖ形を程し
ている。また、上記ドライブメンバ２３の外周部
２３ｃおよびフアン片２３ａの外縁部２３ｅは、
軸方向両端から上記リブ２３ｂの取付部２３ｄ，
２３ｆへ近づく程、径が大なるよう形成してい
る。また上記リブ取付部２３ｄでは冷却風が支障
なく流通するよう比較的半径の大きい円弧でドラ
イブメンバ外周部とリブとをつないでいる。
An embodiment of the present invention shown in FIGS. 1 and 2 will be described below. In the figure, reference numeral 23 denotes a drive member which is the first main body of connection, and has a plurality of fan pieces 23a formed on its outer periphery. Further, a rib 23b that extends in the circumferential direction is formed approximately at the center of the fan piece 23a in the axial direction. are doing. Further, the outer peripheral part 23c of the drive member 23 and the outer peripheral part 23e of the fan piece 23a are as follows:
Attachment portion 23d of the rib 23b from both ends in the axial direction,
The diameter is formed to become larger as it approaches 23f. Further, in the rib mounting portion 23d, the outer peripheral portion of the drive member and the rib are connected by a circular arc having a relatively large radius so that the cooling air can flow without any trouble.
上述以外の構成は前述の従来装置と同等であ
る。次にこの発明による装置の作用について説明
する。まず、前述の従来装置と同様、フアン片２
３ａ，５ａが回転している時、その遠心作用によ
る冷却風を説明すると、上記リブ２３ｂの外縁部
厚さを小とし、フアン片２３ａおよびドライブメ
ンバ外周部２３ｃの軸方向ほぼ中央部径を端部よ
り大とし、上記リブ２３ｂと上記ドライブメンバ
外周部２３ｃとをその接続点２３ｄでなめらかに
継ないだことにより、冷却風が支障なく流れ、流
量が増大する。かつ、ドライブメンバ外周部２３
ｃの全面がその冷却風に接触する。また、上記リ
ブ２３ｂによりＬ側冷却風の影響を受けないので
Ｒ側冷却風を流通さす要素となるフアン作用をな
す部分が、第２図にＺの一点鎖線で示す如く増
え、Ｒ側冷却風の流通量が増える。次にごく低回
転時の、フアン効果を得られない場合は、上記リ
ブ２３ｂによつて熱の放散面積が増える。などか
ら冷却効果を高くすることができる。その他に複
数個のフアン片２３ａを継ぐようリブ２３ｂを全
周に設けたのでその機械的強度も増大した。 The configuration other than the above is equivalent to the conventional device described above. Next, the operation of the device according to the present invention will be explained. First, like the conventional device described above, the fan piece 2
To explain the cooling air generated by the centrifugal action when 3a and 5a are rotating, the thickness of the outer edge of the rib 23b is made small, and the diameter of the fan piece 23a and the drive member outer periphery 23c is approximately at the center in the axial direction. By making the rib 23b and the outer peripheral portion 23c of the drive member smoothly connect at the connecting point 23d, the cooling air flows without any hindrance and the flow rate increases. And the drive member outer peripheral part 23
The entire surface of c is in contact with the cooling air. Furthermore, since the ribs 23b do not affect the L-side cooling air, the area that acts as a fan, which is an element for circulating the R-side cooling air, increases as shown by the dashed line Z in FIG. The amount of distribution will increase. Next, when the fan effect cannot be obtained at very low rotation speeds, the rib 23b increases the heat dissipation area. The cooling effect can be enhanced by such factors. In addition, since the ribs 23b are provided around the entire circumference so as to connect the plurality of fan pieces 23a, the mechanical strength thereof is also increased.
なお、上述した実施例では、リブ２３ｂをドラ
イブメンバ２３と一体に形成しているが、別途形
成した板状のものをはめ込んでもよい。またこの
時断熱板でリブを形成してもそれ相当の効果があ
ることを試験によつて確認している。 In the above-described embodiment, the rib 23b is formed integrally with the drive member 23, but a separately formed plate-like member may be fitted therein. Tests have also confirmed that forming ribs with heat insulating plates has a corresponding effect.
また、磁性粒子式電磁連結装置として、ブレー
キ装置について説明したが、他の応用例としてク
ラツチ装置においても同様であり、この場合はブ
ラケツト１０と取付板１１との間にベアリング等
を設け、上記ブラケツト１０に連結されるステー
タ１を回転自在とし、給電のためのスリツプリン
グ等を設ければよい。また、上記ドライブメンバ
のフアン片、リブ等をアルミ鋳物等の良熱伝導性
の軽金属で形成し、磁束Φの流通する部位のみを
磁性材料としてもよい。および各フアン片間での
リブの軸方向位値は同一でなく例えば千鳥状に配
置してもよい。 Further, although a brake device has been described as a magnetic particle type electromagnetic coupling device, the same applies to a clutch device as another application example. In this case, a bearing or the like is provided between the bracket 10 and the mounting plate 11, and the above bracket The stator 1 connected to the stator 10 may be made rotatable and may be provided with a slip ring or the like for power supply. Alternatively, the fan pieces, ribs, etc. of the drive member may be formed of a light metal with good thermal conductivity such as aluminum casting, and only the portion through which the magnetic flux Φ flows may be made of a magnetic material. The axial positions of the ribs between each fan piece may not be the same, but may be arranged in a staggered manner, for example.
この発明は以上説明したとおり、第１連結主体
外周のフアン片の軸方向ほぼ中央部に、それら各
フアン片を円周方向に連結するリブを各フアン片
と一体に設けることにより、冷却風が増大し特に
ブラケツトの導風部からの流入量が増えると共
に、冷却風と装置との接触面積が増大して装置全
体を効率よく冷却でき特にブラケツト側を効率よ
く冷却できるため、熱容量的に使用できる範囲を
広げた装置を提供できる。
As explained above, this invention provides a rib that connects each of the fan pieces in the circumferential direction at approximately the center in the axial direction of the fan pieces on the outer periphery of the first connecting main body, so that the cooling air can be In particular, the amount of inflow from the air guide part of the bracket increases, and the contact area between the cooling air and the equipment increases, allowing efficient cooling of the entire equipment and especially efficient cooling of the bracket side, which can be used in terms of heat capacity. We can provide equipment with an expanded range.
第１図はこの発明の一実施例を示す部分断面
図、第２図はその冷却風の流通経路を示す拡大
図、第３図は従来装置を示す部分断面図、第４図
はその冷却風の流通経路を示す拡大図である。
図中、１……ステータ、２……励磁コイル、
３，２３……ドライブメンバ、４……中空軸、５
……カバー、６……ベアリング、７……止め輪、
８……カラー、９……磁性粒子、１０……ブラケ
ツト、１１……取付板、１２……ボルト、３ａ，
２３ａ，５ａ……フアン片、２３ｂ……リブ、３
ｂ，２３ｃ……ドライブメンバ外周部、２３ｄ…
…ドライブメンバ外周とリブとの接続部、２３ｅ
……フアン片の外縁部、２３ｆ……フアン片外縁
部とリブの接続部、１０ａ，１０ｂ……導風孔、
Ｘ……冷却風の接触しない面、Ｙ，Ｚ……Ｒ側冷
却風のフアン作用をなす部分、Φ……磁束。尚、
図中同一符号は、同一または相当部分を示す。
Fig. 1 is a partial sectional view showing an embodiment of the present invention, Fig. 2 is an enlarged view showing the cooling air circulation path, Fig. 3 is a partial sectional view showing a conventional device, and Fig. 4 is a partial sectional view showing the cooling air. It is an enlarged view showing the distribution route of. In the figure, 1...stator, 2...excitation coil,
3, 23...Drive member, 4...Hollow shaft, 5
...Cover, 6...Bearing, 7...Retaining ring,
8...Color, 9...Magnetic particles, 10...Bracket, 11...Mounting plate, 12...Bolt, 3a,
23a, 5a...fan piece, 23b...rib, 3
b, 23c...drive member outer circumference, 23d...
... Connection part between drive member outer periphery and rib, 23e
... Outer edge of the fan piece, 23f... Connection part between the outer edge of the fan piece and the rib, 10a, 10b... Air guide hole,
X...Surface not in contact with the cooling air, Y, Z...Portion that acts as a fan for the R side cooling air, Φ...Magnetic flux. still,
The same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
に亘つて設けてなる第１の連結主体と、この第１
の連結主体に対して所定の間隙を介し配設された
第２の連結主体と、上記間隙に充填された磁性粒
子と、上記磁性粒子を磁化し、上記第１、第２の
連結主体を相互に連結する励磁手段とを有した磁
性粒子式電磁連結装置において、上記フアン片の
軸方向ほぼ中央部に、その各フアン片を円周方向
に連結するリブを上記フアン片と一体に設けたこ
とを特徴とする磁性粒子式電磁連結装置。 ２ フアン片および第１の連体主体のリブとの接
続部位置の径を端部径より大とし、その後者の接
続部をなめらかな曲線でもつて接続したことを特
徴とする特許請求の範囲第１項記載の磁性粒子式
電磁連結装置。 ３ リブを板材等で別に形成し、第１の連結主体
外周部のフアン片にはめ込んだことを特徴とする
特許請求の範囲第１項記載の磁性粒子式電磁連結
装置。 ４ 第１の連結主体の磁束が流通する部分を磁性
体で形成し、それをアルミ等の良熱伝導性の軽合
金にて包含したことを特徴とする特許請求の範囲
第１項記載の磁性粒子式電磁連結装置。[Claims] 1. A first connecting body including a plurality of fan pieces extending in the axial direction on the outer periphery, and
a second connecting body disposed through a predetermined gap with respect to the connecting body, magnetic particles filled in the gap, and magnetizing the magnetic particles to mutually connect the first and second connecting bodies. In the magnetic particle type electromagnetic coupling device, a rib is provided integrally with the fan piece, substantially at the center in the axial direction of the fan piece, for connecting each fan piece in the circumferential direction. A magnetic particle type electromagnetic coupling device featuring: 2. Claim 1, characterized in that the diameter of the connecting portion between the fan piece and the rib of the first connecting body is larger than the diameter of the end portion, and the latter connecting portion is connected with a smooth curve. The magnetic particle type electromagnetic coupling device described in . 3. The magnetic particle type electromagnetic coupling device according to claim 1, characterized in that the rib is formed separately from a plate material or the like and is fitted into the fan piece on the outer periphery of the first coupling main body. 4. Magnetism according to claim 1, characterized in that the part of the first connecting body through which magnetic flux flows is formed of a magnetic material, and is covered with a light alloy having good thermal conductivity such as aluminum. Particle type electromagnetic coupling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25439184A JPH0232495B2 (en) | 1984-11-30 | 1984-11-30 | JISEIRYUSHISHIKIDENJIRENKETSUSOCHI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25439184A JPH0232495B2 (en) | 1984-11-30 | 1984-11-30 | JISEIRYUSHISHIKIDENJIRENKETSUSOCHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130630A JPS61130630A (en) | 1986-06-18 |
| JPH0232495B2 true JPH0232495B2 (en) | 1990-07-20 |
Family
ID=17264322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25439184A Expired - Lifetime JPH0232495B2 (en) | 1984-11-30 | 1984-11-30 | JISEIRYUSHISHIKIDENJIRENKETSUSOCHI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232495B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3732799A1 (en) * | 1986-09-30 | 1988-04-07 | Mitsubishi Electric Corp | ELECTROMAGNETIC CLUTCH DEVICE |
| US5611415A (en) * | 1994-02-25 | 1997-03-18 | Horton, Inc. | Rotational control apparatus |
| US5636719A (en) * | 1994-02-25 | 1997-06-10 | Horton, Inc. | Rotational control apparatus |
| US5613586A (en) * | 1994-02-25 | 1997-03-25 | Horton, Inc. | Rotational control apparatus |
| AU738945B2 (en) * | 1997-02-12 | 2001-09-27 | Horton Inc. | Integral steel-aluminum ring for eddy current activated friction clutch |
-
1984
- 1984-11-30 JP JP25439184A patent/JPH0232495B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130630A (en) | 1986-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |