JPS6280314A - Start shock relaxing mechanism in electromagnetic clutch - Google Patents
Start shock relaxing mechanism in electromagnetic clutchInfo
- Publication number
- JPS6280314A JPS6280314A JP60217389A JP21738985A JPS6280314A JP S6280314 A JPS6280314 A JP S6280314A JP 60217389 A JP60217389 A JP 60217389A JP 21738985 A JP21738985 A JP 21738985A JP S6280314 A JPS6280314 A JP S6280314A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- friction plate
- drive wheel
- state
- clutch
- 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.)
- Pending
Links
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電磁クラッチ、特にエンジンとコンプレッサと
を繋ぐ動力伝達機構に介在させて設けられるカークーラ
ー用の電磁クラッチにおいてクラッチ接続時における急
激な立ち上がりを制御するだめの機構、即ち、起動ショ
ック緩和機構間する。[Detailed Description of the Invention] Industrial Application Field The present invention is directed to an electromagnetic clutch, particularly an electromagnetic clutch for a car cooler installed in a power transmission mechanism that connects an engine and a compressor, to control a sudden rise when the clutch is engaged. There is a mechanism to reduce the start-up shock.
従来の技術
一般にカークーラー用のコンプレッサはエンジンより動
力の供給を得てその運転が行なわれるのであるが、同コ
ンプレッサはエンジンに対して一定の回転比率にて直結
されているために同コンプレッサを運転させるべく電磁
クラッチを接続させれば同電磁クラッチの接続と同時に
同コンプレッサに与えられた能カ一杯の圧縮容量にて冷
媒ガスを圧縮する状態、即ち１００％可動の状態が得ら
れる。しかしてこの様に１００％可動の状態が起動と同
時に得られる事はエンジン及び動力伝達機構の各部に過
負荷状態を生ずる事となり、例えば走行フィーリングが
損われたり、摩擦板の摩耗を早める等の不具合を生ずる
事となる。特に、上記の様にコンプレッサが１００％可
動の状態にて起動する事によりコンプレッサ内或いはコ
ンプレッサに至る吸入管路内に冷媒ガスが液化状態にて
残留している事に起因して発生する処の所謂液圧縮を生
じ易く、同液圧縮に起因して種々の不具合（例えば摩耗
、焼き付き、異常音の発生、ピストンの折損及びコンプ
レッサ各部の損傷等）を招来する事となる。Conventional Technology Compressors for car coolers are generally operated by receiving power from the engine, but since the compressor is directly connected to the engine at a constant rotation ratio, it is difficult to operate the compressor. When the electromagnetic clutch is connected, a state in which the refrigerant gas is compressed at the full compression capacity given to the compressor at the same time as the electromagnetic clutch is connected, that is, a state in which the compressor is 100% movable can be obtained. However, if the lever is 100% movable at the same time as the lever is started, it will cause an overload condition in each part of the engine and power transmission mechanism, which may impair the driving feeling or accelerate the wear of the friction plates. This will cause problems. In particular, as mentioned above, when the compressor is started with 100% operation, refrigerant gas remains in a liquefied state inside the compressor or in the suction pipe leading to the compressor. It is easy to cause so-called liquid compression, which can lead to various problems (for example, wear, seizure, abnormal noise, piston breakage, damage to various parts of the compressor, etc.).
従来上記の様な不具合に対する解決策としては電磁クラ
ッチ内に緩衝機構を組込む事によって。Conventionally, the solution to the above problems was to incorporate a buffer mechanism into the electromagnetic clutch.
起動ショックを緩和する方法が提案されている。Methods have been proposed to alleviate the startup shock.
（実公昭５５−５３７８９）
第１０図と第１１図はその具体的構造を表わす図面であ
って、出力ローター２１を盤体２１ａと環体２１ｂに同
心円を存して分割形成し、同盤体２１ａと環体２１ｂｌ
Ｊに隙間２２を形成すると共に同隙間２２内に例えばゴ
ム等の弾性体２３を介装させ、同弾性体２３を屈撓変形
させる事によってクラッチ接続時における衝撃を緩和さ
せる様に設けられる。(Utility Model Publication No. 55-53789) Figures 10 and 11 are drawings showing the specific structure of the output rotor 21, in which the output rotor 21 is divided into a disc body 21a and an annular body 21b with concentric circles. 21a and ring body 21bl
A gap 22 is formed in J, and an elastic body 23 made of, for example, rubber is interposed in the gap 22, and the elastic body 23 is flexibly deformed to reduce the impact when the clutch is connected.
発明が解決しようとする問題点
しかして上記提案にあってはクラッチ接続時において瞬
間的な衝撃緩和作用が得られるに過ぎず一定時間に亘っ
て継続的な衝撃緩和作用が得られない点、特にコンプレ
ッサ及び吸入管路内に冷媒ガスが液化状態にて残留して
いた場合において、同液化状態の冷媒ガスを吐出管路内
に送り出すに必要な時間に亘って継続的な衝撃緩和作用
が得られない点、即ち、液圧縮を防止する事が出来ない
点に問題点を有する。Problems to be Solved by the Invention However, with the above proposal, only an instantaneous shock-relieving effect can be obtained when the clutch is engaged, but a continuous impact-reducing effect cannot be obtained over a certain period of time. When refrigerant gas remains in a liquefied state in the compressor and suction pipe, a continuous shock-relieving effect can be obtained for the time required to send the liquefied refrigerant gas into the discharge pipe. The problem is that liquid compression cannot be prevented.
本発明は上記の様な問題点を解決する為にその改善を試
みたものであって、クラッチ接続時において衝撃を緩和
する事が出来る様にする点、特に液圧縮を回避する事が
出来る様にする点にその解決すべき問題点を有する。即
ち本発明はクラッチ接続時において一定時間に亘って摩
擦板の滑り作用を介して所謂半クラッチの状態が得られ
、その後遠心力の作用により正常な接続状態が得られる
様にした事を特徴とするものであって、その具体的な手
段と作用は次の通りである。The present invention is an attempt to improve the above problems in order to alleviate the impact when the clutch is engaged, and in particular to avoid liquid compression. The problem that needs to be solved lies in the fact that That is, the present invention is characterized in that when the clutch is connected, a so-called half-clutch state is obtained for a certain period of time through the sliding action of the friction plate, and then a normal connected state is obtained by the action of centrifugal force. The specific means and effects are as follows.
問題点を解決するための手段
エンジンに直結する駆動輪と対面させてハブを遊転自在
に軸架させ、同駆動輪とハブ間に形成する隙間内に一対
の摩擦板を介在させて取り付けると共に雨摩擦板と対向
させて電磁石を取り付け、同電磁石の励磁作用を介して
両摩擦板を圧接させる様に設けられる電磁クラッチにお
いて、■上記摩擦板を内側摩擦板と外側摩擦板に同心円
を存して分割形成する。Means for solving the problem: A hub is mounted on a shaft so that it can rotate freely, facing the drive wheel that is directly connected to the engine, and a pair of friction plates are interposed and installed in the gap formed between the drive wheel and the hub. In an electromagnetic clutch, in which an electromagnet is mounted facing the rain friction plate, and the two friction plates are brought into pressure contact through the excitation action of the electromagnet, Divide and form.
■ハブ側の内側摩擦板と外側摩擦板はハブより一定の拡
がり角を存して半径方向に延設する板ばねに取り付けら
れて常時は駆動輪側の内側摩擦板と外側摩擦板に対して
外波がりに離れる方向に付勢された状態にある様に設け
る。■The inner and outer friction plates on the hub side are attached to leaf springs that extend in the radial direction from the hub with a certain angle of spread, and are normally attached to the inner and outer friction plates on the drive wheel side. It is provided so that it is biased in the direction of outward waves moving away from each other.
■ハブ側の外側摩擦板にウェイトを取り付け、同ウェイ
トにより得られる遠心力の作用により同ハブ側の外側摩
擦板を仮ばねの付勢力に打ち勝って駆動輪側の外側摩擦
板に向けて近づける事が出来る様に設ける。■A weight is attached to the outer friction plate on the hub side, and by the action of the centrifugal force obtained by the weight, the outer friction plate on the hub side overcomes the biasing force of the temporary spring and moves toward the outer friction plate on the drive wheel side. It will be set up so that it can be done.
作用
電磁石を励磁させる事により、ハブ側の内側摩擦板が駆
動輪側の摩擦板に圧接する状態、即ち、面内側摩擦板間
に滑りを生じ乍ら駆動輪の回転をハブに伝達する状態が
得られる。従って、コンプレッサ側に負荷が生じている
場合には両摩擦板の滑り作用を介してコンプレッサ側の
負荷に応じた速度にて回転する状態を一定時間に亘って
得る事が出来る。更に具体的には１例えばコンプレッサ
内に冷媒ガスが液化状態にて滞留している場合には液圧
縮を生ずる事なく同液化状態の冷媒ガスをコンプレッサ
の外に送り出す事が出来る。そしてコンプレッサ側の負
荷が軽減されてハブ側の回転速度が速くなるに従ってハ
ブ側に遠心力が生じ、この遠心力の作用によりハブ側の
外側摩擦板が駆動輪側に引き寄せられると共に電磁石若
しくは永久磁石の励磁作用を介して駆動輪側の外側摩擦
板に圧接する状態、即ち、ハブが駆動輪と一体に回転す
る作用状態が得られる。By energizing the working electromagnet, a state is established in which the inner friction plate on the hub side presses against the friction plate on the drive wheel side, that is, a state in which the rotation of the drive wheel is transmitted to the hub while slippage occurs between the inner friction plates. can get. Therefore, when a load is applied to the compressor side, a state in which the compressor rotates at a speed corresponding to the load on the compressor side can be obtained for a certain period of time through the sliding action of both friction plates. More specifically, for example, if the refrigerant gas remains in a liquefied state within the compressor, the refrigerant gas in the liquefied state can be sent out of the compressor without causing liquid compression. Then, as the load on the compressor side is reduced and the rotational speed of the hub side increases, centrifugal force is generated on the hub side, and due to the action of this centrifugal force, the outer friction plate on the hub side is drawn toward the drive wheel side, and the electromagnet or permanent magnet Through the excitation action of the hub, a state is obtained in which the hub is pressed against the outer friction plate on the drive wheel side, that is, a state in which the hub rotates integrally with the drive wheel is obtained.
尚、本発明と同様ハブ２４側の摩擦板２５を半径方向に
延在する板ばね２６を介して駆動輪２７側に対して進退
自在に取り付ける構造の電磁クラッチ（第１２図乃至第
１５図参照）が実公昭５５−１６５１４号として先に提
案されているが、同提案はエンジンルーム内の温度が上
昇した場合において電磁吸引力が低下するという不具合
に対する解決策として上記板ばね２６の素材としてバイ
メタルを使用し、エンジンルーム内の温度が上昇して電
磁吸引力が低下した場合において同バイメタルの熱変形
作用を介してハブ２４側の摩擦板２５を駆動輪２７側に
圧接させる事が出来る様にした事、即ち、電磁吸引力の
不足を補う事が出来る様にした事を特徴とするものであ
って、本発明とはその目的を全く相違するものである。It should be noted that, similar to the present invention, an electromagnetic clutch has a structure in which a friction plate 25 on the hub 24 side is attached to the drive wheel 27 side via a leaf spring 26 extending in the radial direction so as to be movable toward and away from the drive wheel 27 side (see FIGS. 12 to 15). ) was previously proposed as Utility Model Publication No. 55-16514, but this proposal was based on the use of bimetal as the material for the leaf spring 26 as a solution to the problem that the electromagnetic attraction force decreases when the temperature in the engine room rises. is used, so that when the temperature in the engine room rises and the electromagnetic attraction force decreases, the friction plate 25 on the hub 24 side can be pressed against the drive wheel 27 side through the thermal deformation effect of the bimetal. In other words, it is characterized by being able to compensate for the lack of electromagnetic attractive force, and its purpose is completely different from that of the present invention.
実施例
以下に本発明の具体的な実施例を例示の図面について説
明する。EXAMPLES Specific examples of the present invention will be described below with reference to illustrative drawings.
第１図乃至第４図に表わす第１の実施例において、１は
コンプレッサの外殻を形成するハウジングであって、同
ハウジング１の前壁部ＩＡにはボス１Ｂが一体に突設さ
れる。同ボスＩＢの外周部にはベアリング２を介して駆
動輪３が回転自在に支承され、同駆動輪３の外周部には
プーリー４が同駆動輪３と一体に回転する事が可能な如
く取り付けられる。そして同プーリー４にはベルト５が
張架され、同ベルト５を介してエンジンの回転を駆動輪
３に伝達する事が出来る様に設けられる。In the first embodiment shown in FIGS. 1 to 4, a housing 1 forms the outer shell of the compressor, and a boss 1B is integrally provided on the front wall IA of the housing 1. A drive wheel 3 is rotatably supported on the outer periphery of the boss IB via a bearing 2, and a pulley 4 is attached to the outer periphery of the drive wheel 3 so that it can rotate together with the drive wheel 3. It will be done. A belt 5 is stretched around the pulley 4 and is provided so that engine rotation can be transmitted to the drive wheels 3 via the belt 5.
又、上記ボスＩＢの内周部にはハウジング１内に横架す
る回転軸６の一端が臨む如く設けられ、同回転軸６の一
端にはハブ７が回転自在に軸架される。同ハブ７は回転
軸６に嵌挿する円筒部と同円筒部より駆動輪３との間に
適宜の隙間９を存して半径方向に延設する円盤部より成
り、同円盤部は内側円盤部７Ａと外側円盤部７Ｂに同心
円を存して分割形成される。そして両円盤部７Ａ、７Ｂ
は複数枚の板ばね８により連結される。即ち、各板ばね
８はその基部を内側円盤部７Ａに連結させて半径方向に
向けて一定間隔毎に延設するに同板ばね８は駆動輪３と
の間に形成される隙間９が基部より先端部方向に向けて
徐々に拡がる状態が得られる如く傾斜角θを存して設け
られる。そして同板ばね８には基部寄りに位置して上記
外側円盤部７Ｂが連結され、同外側円盤部７Ｂには内側
摩擦板１０ａが取り付けられる一方、駆動輪３側には同
内側摩擦板１０ａと対面させて内側摩擦板１０ｂが取り
付けられると共に同内側摩擦板１０ａ。Further, one end of a rotating shaft 6 horizontally suspended within the housing 1 is provided at the inner peripheral portion of the boss IB, and a hub 7 is rotatably mounted on one end of the rotating shaft 6. The hub 7 consists of a cylindrical part that fits into the rotating shaft 6 and a disc part that extends in the radial direction with an appropriate gap 9 between the cylindrical part and the drive wheel 3, and the disc part is an inner disc. The portion 7A and the outer disc portion 7B are formed separately with concentric circles. And both disk parts 7A, 7B
are connected by a plurality of leaf springs 8. That is, each leaf spring 8 has its base connected to the inner disk part 7A and extends radially at regular intervals, and the base of each leaf spring 8 is connected to the gap 9 formed between the leaf spring 8 and the drive wheel 3. It is provided with an inclination angle θ so as to obtain a state in which it gradually expands toward the distal end. The leaf spring 8 is connected to the outer disk portion 7B located near the base, and an inner friction plate 10a is attached to the outer disk portion 7B, while an inner friction plate 10a is attached to the drive wheel 3 side. An inner friction plate 10b is attached to face the inner friction plate 10a.
１０ｂと対向させて内側電磁石１４が取り付けられる。An inner electromagnet 14 is attached opposite to 10b.
又、同外側円盤部７Ｂの外周部には複数枚のプレート１
１がばね片１２を介して前後方向に揺動自在に連結され
、同プレート１１には外側摩擦板１３ａが取り付けられ
る一方、駆動輪３側には同外側摩擦板１３ａと対面させ
て外側摩擦板１３ｂが取り付けられると共に同外側摩擦
板１３ａ。Further, a plurality of plates 1 are provided on the outer periphery of the outer disk portion 7B.
1 is connected to the plate 11 so as to be swingable in the front-rear direction via a spring piece 12, and an outer friction plate 13a is attached to the plate 11, while an outer friction plate 13a is attached to the drive wheel 3 side facing the outer friction plate 13a. 13b and the same outer friction plate 13a.
１３ｂと対向させて外側電磁石１５が取り付けられる。An outer electromagnet 15 is attached to face the outer electromagnet 13b.
そして又、同プレート１１の外周部には前記板ばね８の
先端部に連結させて環状に形成するウェイト１６が取り
付けられる。Further, a weight 16 formed in an annular shape and connected to the tip of the leaf spring 8 is attached to the outer peripheral portion of the plate 11.
又、第６図乃至第９図に表わす第２の実施例において、
プレート１１の外周部にはウェイト１６に換えて永久磁
石１７が連結される。そして同永久磁石１７には外側摩
擦板１３ａが取り付けられる一方、駆動輪３側には同外
側摩擦板１３ａと対面させて外側摩擦板１３ｂが取り付
けられる。Moreover, in the second embodiment shown in FIGS. 6 to 9,
A permanent magnet 17 is connected to the outer periphery of the plate 11 instead of the weight 16. An outer friction plate 13a is attached to the permanent magnet 17, and an outer friction plate 13b is attached to the drive wheel 3 side facing the outer friction plate 13a.
次にその作用について説明する。Next, its effect will be explained.
第１図乃至第４図に表わす第１の実施例において、第１
図は電磁クラッチがＯＦＦの状態を表わす図面であって
、内側電磁石１４と外側電磁石１５は共に非励磁の状態
にある。そしてこの様に両電磁石１４，１５が非励磁状
態にある事により隙間９に対峙させて設けられる各一対
の摩擦板１０ａ。In the first embodiment shown in FIGS. 1 to 4, the first
The figure shows a state in which the electromagnetic clutch is OFF, and both the inner electromagnet 14 and the outer electromagnet 15 are in a non-energized state. As described above, both the electromagnets 14 and 15 are in a non-excited state, so that each pair of friction plates 10a are provided facing each other in the gap 9.
１０ｂ及び１３ａ、１３ｂは板ばね８の付勢作用を介し
て夫々離断した状態、即ち、プーリー４と駆動輪３がエ
ンジンと連動して常時回転する状態にてハブ７と回転軸
６がその回転を停止した状態にある。10b, 13a, 13b are separated from each other by the biasing action of the leaf spring 8, that is, the hub 7 and the rotating shaft 6 are in a state where the pulley 4 and the drive wheel 3 are constantly rotating in conjunction with the engine. It is in a state where it has stopped rotating.
そしてこの様に電磁クラッチがＯＦＦの状態において、
両電磁石１４．１５をスイッチオンする事により、両電
磁石１４．１５が励磁される。そして本来ならば両電磁
石１４．１５の励磁作用を介して両摩擦板１０ａ、１０
ｂ及び１３ａ、１３ｂが夫々圧接する状態が得られるの
であるが、本発明にあってはハブ７側の両摩擦板１０ａ
、１３ａは拡がり角θを存して駆動輪３より離れる方向
に付勢された状態にある事により、内側摩擦板１０ａの
みが内側摩擦板１０ｂに圧接し、外側摩擦板１３ａは板
ばね８の外側円盤部７Ｂの移動に伴う撓みによってその
撓み量だけ外側摩擦板１３ｂ方向に引き寄せられるもの
の、外側電磁石１５の板ばね８の付勢力に抗して摩擦板
１３ａを引き寄せることが可能な励磁作用範囲外に位置
することから外側摩擦板１３ｂには圧接しない状態が得
られる。そしてこの様に内側電磁石１４の励磁作用を介
して内側摩擦板１０ａ、１０ｂのみが圧接する状態が得
られる事により、駆動輪３の回転がハブ７に伝達されて
同ハブ７が回転する事となるのであるが、内側摩擦板１
０ａ、１０ｂは回転中心に比較的近い位置に取り付けら
れている事と相まって駆動輪３の回転が全てハブ７に伝
達される事は無く両摩擦板１０ａ、１０ｂ間に滑りを生
じ乍らハブ７に対して回転を伝達する状態が得られる。And when the electromagnetic clutch is OFF like this,
By switching on both electromagnets 14.15, both electromagnets 14.15 are energized. Normally, both friction plates 10a and 10 would be
b, 13a, 13b are in pressure contact with each other, but in the present invention, both friction plates 10a on the hub 7 side
, 13a have a spread angle θ and are biased in a direction away from the drive wheel 3, so that only the inner friction plate 10a is in pressure contact with the inner friction plate 10b, and the outer friction plate 13a is in contact with the inner friction plate 10b. The excitation action range allows the friction plate 13a to be pulled against the biasing force of the leaf spring 8 of the outer electromagnet 15, although it is pulled toward the outer friction plate 13b by the amount of deflection due to the movement of the outer disk portion 7B. Since it is located outside, it is possible to obtain a state in which it does not come into pressure contact with the outer friction plate 13b. In this way, by creating a state in which only the inner friction plates 10a and 10b are in pressure contact through the excitation action of the inner electromagnet 14, the rotation of the drive wheel 3 is transmitted to the hub 7, and the hub 7 rotates. However, the inner friction plate 1
Coupled with the fact that 0a and 10b are mounted relatively close to the center of rotation, all of the rotation of the drive wheel 3 is not transmitted to the hub 7, and slippage occurs between both friction plates 10a and 10b. A state is obtained in which rotation is transmitted to.
即ち、所謂半クラッチの状態が得られ、これによりコン
プレッサ側の負荷に応じて回転する作用状態が得られる
。そしてこの様に半クラッチで回転する状態においてコ
ンプレッサ側の負荷が軽減されるのに伴いハブ７と回転
軸６側の回転数が徐々に増大する事となるのであるが、
ハブ７側にはプレート１１の外周部に板ばね８の先端部
に連結させてウェイト１６が取り付けられている事によ
り、ハブ７側に遠心力が発生し、同遠心力の作用によっ
て外側摩擦板１３ａが駆動輪３方向に接近する。That is, a so-called half-clutch state is obtained, and thereby an operating state in which the compressor rotates in accordance with the load on the compressor side is obtained. In this state of rotation with a half clutch, as the load on the compressor side is reduced, the rotation speeds on the hub 7 and rotating shaft 6 side gradually increase.
On the hub 7 side, a weight 16 is attached to the outer periphery of the plate 11 and connected to the tip of the leaf spring 8, so that centrifugal force is generated on the hub 7 side, and the action of the centrifugal force causes the outer friction plate to 13a approaches the drive wheels 3.
該摩擦板１３ａが外側電磁石１５の励磁作用範囲内に入
ると外側電磁石１５の励磁作用によって外側摩擦板１３
ｂに圧接する状態、即ち、励磁作用力と遠心力が板ばね
８の付勢圧に打ち勝って周外側摩擦板１３ａ、１３ｂが
圧接する状態が得られる。そしてこの様に面内側摩擦板
１０ａ、１０ｂに加えて周外側摩擦板１３ａ、１３ｂが
圧接す゛る状態が得られる事により、駆動輪３とハブ７
が一体に回転する状態、即ち、クラッチＯＮの状態が得
られる。When the friction plate 13a enters the excitation action range of the outer electromagnet 15, the outer friction plate 13a is moved by the excitation action of the outer electromagnet 15.
A state in which the outer friction plates 13a and 13b are brought into pressure contact with each other is obtained, in which the excitation force and the centrifugal force overcome the urging pressure of the leaf spring 8, and the peripheral outer friction plates 13a and 13b are brought into pressure contact with each other. In this way, in addition to the in-plane friction plates 10a and 10b, the circumferential outer friction plates 13a and 13b are in pressure contact with each other, so that the drive wheel 3 and the hub 7
A state in which the clutches rotate together, that is, a state in which the clutch is ON is obtained.
又、第５図乃至第９図に表わす第２の実施例において、
永久磁石１７が半クラッチで回転する状態においてコン
プレッサ側の負荷が軽減されてハブ７と回転軸６側の回
転数が徐々に増大するのに伴い板ばね８の先端部に連結
させてプレート１１の外周部に取り付けられる永久磁石
１７がウェイトとして機能する作用状態、即ち、ハブ７
側に遠心力が発生し、同遠心力の作用によって外側摩擦
板１３ａが駆動輪３方向に引き寄せられると共に゛一定
距離迄近づいた状態にて永久磁石１７の励磁力によって
外側摩擦板１３ｂに圧接する状態、即ち、クラッチＯＮ
の状態が得られる。Furthermore, in the second embodiment shown in FIGS. 5 to 9,
When the permanent magnet 17 is rotating with a half-clutch, the load on the compressor side is reduced and the rotational speed of the hub 7 and rotating shaft 6 side gradually increases. A working state in which the permanent magnet 17 attached to the outer periphery functions as a weight, that is, the hub 7
A centrifugal force is generated on the side, and the outer friction plate 13a is drawn toward the driving wheels 3 by the action of the centrifugal force, and when the outer friction plate 13a approaches to a certain distance, it is pressed against the outer friction plate 13b by the excitation force of the permanent magnet 17. status, i.e. clutch ON
The following state is obtained.
発明の効果
本発明は以上の様に構成されるものであって、上記の様
に摩擦板を内側摩擦板と外側摩擦板に同心円を存して分
割形成し、クラッチ接続時において先ず内側摩擦板のみ
が圧接する状態、即ち、所謂半クラッチの状態が得られ
、その後コンプレッサ側の負荷が減少するのに伴いハブ
側に固着するウェイトにより得られる遠心力の作用によ
って外側摩擦板が圧接する状態、即ちハブ側が駆動輪側
と一体に回転する状態が得られる様にした事により、ク
ラッチ接続時における起動ショックを効果的に防止する
事が出来るに至った。即ち、クラッチ接続時においてコ
ンプレッサ側の負荷に応じた回転を一定時間に亘って得
る事が出来、此によリコンプレッサ内に冷媒ガスが液化
状態にて滞留している場合における液圧縮の発生を効果
的に回避する事が出来るに至った。Effects of the Invention The present invention is constructed as described above, and as described above, the friction plate is divided and formed into an inner friction plate and an outer friction plate with concentric circles, and when the clutch is connected, the inner friction plate is first formed. A state in which only the compressor is in pressure contact, that is, a so-called half-clutch state is obtained, and then as the load on the compressor side decreases, the outer friction plate is brought into pressure contact by the action of the centrifugal force obtained by the weight fixed to the hub side, That is, by allowing the hub side to rotate integrally with the driving wheel side, it has become possible to effectively prevent starting shock when the clutch is engaged. In other words, when the clutch is engaged, rotation corresponding to the load on the compressor side can be obtained for a certain period of time, and this prevents the occurrence of liquid compression when refrigerant gas remains in a liquefied state in the recompressor. I was able to effectively avoid it.
第１図乃至第４図は第１の実施例を表わす図面であって
、第１図は電磁クラッチの側断面図、第２図は同電磁ク
ラッチの上半部を表わす正面図、第３図と第４図は作用
状態を表わす電磁クラッチの上半部断面図である。第５
図乃至と第９図は第２の実施例を表わす図面であって、
各図面は離断状態より接続状態に至る作用状態を表わす
電磁クラッチの上半部断面図である。第１０図と第１１
図は従来構造を表わす図面であって、第１０図は電磁ク
ラッチの断面図、第１１図は第１０図におけるＡ−Ａ線
断面図である。又、第１２図乃至第１５図は同じ〈従来
構造を表わす図面であって、第１２図は電磁クラッチの
側断面図、第１３図乃至第１５図は作用状態を表わす断
面図である。
１・・・ハウジング、ＩＡ・・・前壁部、ＩＢ・・・ボ
ス、２・・・ベアリング、３・・・駆動輪、４・・・プ
ーリー、５・ベルト、６・・・回転軸、７・・・ハブ、
７Ａ・・内側円盤部、７Ｂ・・外側円盤部、８・・・仮
ばね、９・・・隙間、１０ａ、１０ｂ・・内側摩擦板、
１１・・・プレート、１２・・・ばね片、１３ａ、１３
ｂ・・・外側摩擦板、１４・・・内側電磁石、１５・・
・外側電磁石、１６・・・ウェイト、１７・・・永久磁
石。
特許出願人 株式会社 豊田自動織機製作所、−ｒ；−
゛、。
第４図
昭和６０年１０月２５日1 to 4 are drawings showing the first embodiment, in which FIG. 1 is a side sectional view of the electromagnetic clutch, FIG. 2 is a front view showing the upper half of the electromagnetic clutch, and FIG. 3 is a front view showing the upper half of the electromagnetic clutch. and FIG. 4 are cross-sectional views of the upper half of the electromagnetic clutch showing the operating state. Fifth
9 to 9 are drawings showing the second embodiment,
Each drawing is a cross-sectional view of the upper half of the electromagnetic clutch showing an operating state ranging from a disconnected state to a connected state. Figures 10 and 11
The figures show a conventional structure, in which FIG. 10 is a cross-sectional view of the electromagnetic clutch, and FIG. 11 is a cross-sectional view taken along the line A--A in FIG. 10. Further, FIGS. 12 to 15 are drawings showing the same conventional structure, with FIG. 12 being a side sectional view of the electromagnetic clutch, and FIGS. 13 to 15 being sectional views showing the operating state. DESCRIPTION OF SYMBOLS 1... Housing, IA... Front wall part, IB... Boss, 2... Bearing, 3... Drive wheel, 4... Pulley, 5... Belt, 6... Rotating shaft, 7...Hub,
7A...Inner disc part, 7B...Outer disc part, 8...Temporary spring, 9...Gap, 10a, 10b...Inner friction plate,
11...Plate, 12...Spring piece, 13a, 13
b...Outer friction plate, 14...Inner electromagnet, 15...
・Outer electromagnet, 16... Weight, 17... Permanent magnet. Patent applicant Toyota Industries Corporation, -r;-
゛、. Figure 4 October 25, 1985
Claims (1)
させて遊転自在に軸架するハブ間に介在させて一対の摩
擦板を対向配置するに同摩擦板は内側摩擦板と外側摩擦
板に同心円を存して分割形成し、ハブ側の外側摩擦板は
常時は駆動輪側の摩擦板に対して外周方向に向けて一定
の拡がり角を存して付勢された状態にある様に設けると
共に同ハブ側の外側摩擦板にはウエイトを固着させて成
る電磁クラッチにおける起動ショック緩和機構。(1) A pair of friction plates are arranged facing each other between a drive wheel that is directly connected to the engine and a hub that faces the drive wheel and is freely rotatable.The friction plates have an inner friction plate and an outer friction plate. The plate is divided and formed with concentric circles, and the outer friction plate on the hub side is always biased with a constant divergence angle toward the outer circumference relative to the friction plate on the drive wheel side. A starting shock mitigation mechanism for an electromagnetic clutch, which is provided on the outer friction plate on the hub side and has a weight fixed to the outer friction plate on the hub side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217389A JPS6280314A (en) | 1985-09-30 | 1985-09-30 | Start shock relaxing mechanism in electromagnetic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217389A JPS6280314A (en) | 1985-09-30 | 1985-09-30 | Start shock relaxing mechanism in electromagnetic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6280314A true JPS6280314A (en) | 1987-04-13 |
Family
ID=16703409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60217389A Pending JPS6280314A (en) | 1985-09-30 | 1985-09-30 | Start shock relaxing mechanism in electromagnetic clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6280314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112442A (en) * | 2008-11-05 | 2010-05-20 | Sanden Corp | Electromagnetic clutch for compressor |
| JP2014156918A (en) * | 2013-02-18 | 2014-08-28 | Jtekt Corp | Frictional member and electromagnetic clutch |
-
1985
- 1985-09-30 JP JP60217389A patent/JPS6280314A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010112442A (en) * | 2008-11-05 | 2010-05-20 | Sanden Corp | Electromagnetic clutch for compressor |
| JP2014156918A (en) * | 2013-02-18 | 2014-08-28 | Jtekt Corp | Frictional member and electromagnetic clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2009121676A (en) | Power transmitter | |
| JPH02271142A (en) | Frictional type continuously variable transmission | |
| US6838796B1 (en) | Two-speed rotational control apparatus with eddy current drive | |
| US11499594B2 (en) | Magnetorheological fluid clutch apparatus with low permeability drums | |
| KR100641042B1 (en) | A clutch | |
| JPS6280314A (en) | Start shock relaxing mechanism in electromagnetic clutch | |
| US2445590A (en) | Driving mechanism | |
| JP3838312B2 (en) | Damper device for electromagnetic clutch | |
| US3899059A (en) | Fluid coupling assembly | |
| JPS6280315A (en) | Start shock relaxing mechanism in electromagnetic clutch | |
| KR20150102257A (en) | Electromagnetic clutch | |
| JP2008164030A (en) | One-way clutch | |
| JPH029108Y2 (en) | ||
| JPS6272931A (en) | Starting shock absorbing mechanism in electromagnetic clutch | |
| WO2022021663A1 (en) | Compressor | |
| CN204200548U (en) | With the air conditioner for automobile compressor of magnetic clutch | |
| JP3003365B2 (en) | Horizontal open compressor | |
| JPS63310379A (en) | Ultrasonic motor provided with electromagnetic clutch | |
| JP2006077954A (en) | Electromagnetic clutch | |
| WO2024022493A1 (en) | Scroll for scroll compressor and scroll compressor | |
| JPH0350308Y2 (en) | ||
| JPH08258554A (en) | Compressor | |
| JP2004190763A (en) | Rotary supporting device for pulley | |
| JP2576432Y2 (en) | Electromagnetic clutch | |
| JPH10272179A (en) | Magnet coupling, and magnet pump using the same |