JP4835822B2 - Bonded canceller seal - Google Patents

Bonded canceller seal Download PDF

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JP4835822B2
JP4835822B2 JP2005133986A JP2005133986A JP4835822B2 JP 4835822 B2 JP4835822 B2 JP 4835822B2 JP 2005133986 A JP2005133986 A JP 2005133986A JP 2005133986 A JP2005133986 A JP 2005133986A JP 4835822 B2 JP4835822 B2 JP 4835822B2
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canceller
bonded
oil
seal
snap ring
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紳一郎 田口
芳行 勘崎
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Nok Corp
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Description

本発明は、軸方向に往復動するピストン部材に用いられるボンデッド・キャンセラー・シールに関する。   The present invention relates to a bonded canceller seal used for an axially reciprocating piston member.

自動車用のＡＴおよびＣＶＴ等の自動変速機において、クラッチ締結に使用されるピストン部材への遠心油圧負荷をキャンセルする目的でボンデッド・キャンセラー・シール（ＢＣＳ）が使用される。   In an automatic transmission such as AT and CVT for automobiles, a bonded canceller seal (BCS) is used for the purpose of canceling a centrifugal hydraulic load on a piston member used for clutch engagement.

従来、図５，図６に示す通り、ＢＣＳの本体であるキャンセラー部材１０１には、軸に取り付けられたスナップリングに係止する止め突起部１０２が設けられ、また、ピストン部材とＢＣＳとの間に形成されている油圧室の容量がピストンストロークにより減少したとき油圧室から油を排出するための油抜き部１０３が設けられている。   Conventionally, as shown in FIGS. 5 and 6, the canceller member 101, which is the main body of the BCS, is provided with a stop projection 102 that is locked to a snap ring attached to the shaft, and between the piston member and the BCS. An oil drain portion 103 is provided for discharging oil from the hydraulic chamber when the capacity of the hydraulic chamber formed in the cylinder is reduced by the piston stroke.

このため、金属材料の板材であるキャンセラー部材に止め突起部を設けるため、下記特許文献１，２に開示されているようにプレスポンチで半抜き加工する必要があると共に、別途油抜き部を設けるため切り欠き加工する等の複雑な成形作業が必要となり、コスト高となる問題があった。   For this reason, in order to provide a stop projection on the canceller member, which is a metal plate, it is necessary to perform half punching with a press punch as disclosed in Patent Documents 1 and 2 below, and a separate oil drain is provided. For this reason, a complicated molding operation such as a notch process is required, which increases the cost.

特開２０００−０２７８２５公報JP 2000-027825 A 特開２００３−２５４４３８公報JP 2003-254438 A

本発明は以上の点に鑑み、コストが掛らないでＢＣＳにスナップリングに係止する止め突起部と油圧室から油を排出するための油抜き部を設けることを目的とする。   The present invention has been made in view of the above points, and an object thereof is to provide a stop projection portion for locking a snap ring on a BCS and an oil drain portion for discharging oil from a hydraulic chamber without cost.

上記目的を達成するため、本発明の請求項１に係るボンデッド・キャンセラー・シールは、金属材料の板材をプレス加工により成形したキャンセラー部材と、前記キャンセラー部材に接着され、軸方向に往復動するピストン部材の周面に摺接する外周側のシールリップと、前記キャンセラー部材に形成され、軸に取り付けられたスナップリングに係止する内周側の止め突起部とを備えたボンデッド・キャンセラー・シールにおいて、前記止め突起部が、前記キャンセラー部材の内径フランジ部を半抜き加工して成形した凸部からなり、この半抜き加工により前記凸部に形成された開口が、油圧室から油を排出するための油抜き部をなすことを特徴とするものである。
To achieve the above object, a bonded canceller seal according to claim 1 of the present invention includes a canceller member formed by pressing a metal plate and a piston that is bonded to the canceller member and reciprocates in the axial direction. In a bonded canceller seal provided with a seal lip on the outer peripheral side that is in sliding contact with the peripheral surface of the member, and an inner peripheral side stop protrusion formed on the canceller member and locked on a snap ring attached to the shaft, The stop projection part is a convex part formed by half-cutting the inner diameter flange part of the canceller member, and the opening formed in the convex part by this half-punching process is for discharging oil from the hydraulic chamber. The oil draining part is formed .

本発明は、以下の効果を奏する。   The present invention has the following effects.

すなわち、上記構成を備えた本発明の請求項１のボンデッド・キャンセラー・シールは、スナップリングと係止する止め突起部が、キャンセラー部材の内径フランジ部を半抜き加工して成形した凸部からなり、この半抜き加工により前記凸部に形成された開口が、油圧室から油を排出するための油抜き部をなすことから、ボンデッド・キャンセラー・シールの本体であるキャンセラー部材に止め突起部を成形するときに同時に同一の作業で油抜き部も成形することができ、別途油抜き部を成形する必要がないので加工コストの低減を図ることができる。
That is, in the bonded canceller seal according to claim 1 of the present invention having the above-described configuration, the stop projection that is engaged with the snap ring is a convex portion formed by half-cutting the inner diameter flange portion of the canceller member. Because the opening formed in the convex part by this half-punching process forms an oil drain part for discharging oil from the hydraulic chamber , a stop projection is formed on the canceller member which is the main body of the bonded canceller seal At the same time, the oil drainage part can be formed by the same operation at the same time, and it is not necessary to separately form the oil drainage part, so that the processing cost can be reduced.

また、止め突起部に油抜き部を形成した他に、別途単独の油抜き部を設けたときには、止め突起部と単独の油抜き部の両方で油の排出を行うことができ油の排出性を向上することができる。更に油抜き部がキャンセラー部材の内径フランジ部を半抜き加工した止め突起部により形成されているので、係止力を高めるために止め突起部の断面高さを高くすると油排出口の間口が高くなり、スナップリングに塞がれる面積の割合を少なくすることができ油排出機能を向上することができる。
In addition to the oil drainage part formed on the stop protrusion, when a separate oil drain part is provided separately, oil can be discharged from both the stop protrusion and the single oil drain part. Can be improved. Furthermore, since the oil drainage part is formed by a stop projection part obtained by half-cutting the inner diameter flange part of the canceller member, if the cross section height of the stop protrusion part is increased in order to increase the locking force, the oil discharge port opening becomes higher. Thus, the ratio of the area blocked by the snap ring can be reduced, and the oil discharging function can be improved.

また、キャンセラー部材に単独の油抜き部を設ける場合には切り欠き加工により行うので欠落形状となるが、半抜き加工により止め突起部に油抜き部を形成した場合には止め突起部が架け橋構造となるので剛性が高くなり、強度を上げることができる。
In addition, when a single oil draining part is provided in the canceller member, it will be cut out because it is cut out, but when the oil draining part is formed in the stopping protrusion part by half-punching , the stopper protrusion has a bridge structure Therefore, the rigidity is increased and the strength can be increased.

以下に図面を参照して、この発明の好適な実施の形態を例示して説明する。ただし、この発明の範囲は、特に限定的記載がない限りは、この実施の形態に記載されている内容に限定する趣旨のものではない。   Preferred embodiments of the present invention will be described below with reference to the drawings. However, the scope of the present invention is not intended to be limited to the contents described in this embodiment unless otherwise specified.

図１は、本発明に係るＢＣＳに設けられた止め突起部の断面図であり、図２は、図１における止め突起部のＡ矢視拡大平面図であり、図３は、図１における止め突起部のＡ矢視拡大斜視図である。   1 is a cross-sectional view of a stop projection provided on a BCS according to the present invention, FIG. 2 is an enlarged plan view of the stop projection in FIG. It is an A arrow expansion perspective view of a projection part.

図１に示す本発明に係る止め突起部１は、図示しない有底円筒形状のシリンダーと軸２との間の環状空間を軸方向に往復動するピストン部材３に用いられるボンデッド・キャンセラー・シール（ＢＣＳ）４に設けられている。
Stopping protrusion 1 according to the present invention shown in Figure 1, illustrated without a bottomed cylindrical cylinder and used the annular space between the shaft 2 to the piston member 3 that reciprocates in the axial direction bonded canceller seal ( BCS) 4.

ＢＣＳ４は、本体であるキャンセラー部材５とシールリップ４１と止め突起部１とを備えている。キャンセラー部材５は、金属材料の板材をプレス加工で一体成形したものであり、軸２に平行な円筒部５１と該円筒部のピストン側端部（図上上側）から外径方向に延びる外径フランジ部５２と円筒部の他端部から内径方向に延びる内径フランジ部５３とから構成される。シールリップ４１はゴム状弾性材により成形されていて、外径フランジ部５２の外径側端部５２ａに接着しピストン部材３の周面に密封自在に摺動するように設けられている。   The BCS 4 includes a canceller member 5 that is a main body, a seal lip 41, and a stop projection 1. The canceller member 5 is formed by integrally forming a metal plate by pressing, and has an outer diameter extending in the outer diameter direction from a cylindrical portion 51 parallel to the shaft 2 and a piston side end (upper side in the figure) of the cylindrical portion. It is comprised from the flange part 52 and the internal diameter flange part 53 extended in an internal diameter direction from the other end part of a cylindrical part. The seal lip 41 is formed of a rubber-like elastic material, and is provided so as to adhere to the outer diameter side end portion 52a of the outer diameter flange portion 52 and to slide on the peripheral surface of the piston member 3 so as to be sealed.

軸２には、ＢＣＳ４に設けられている止め突起部１を係止するスナップリング２１が取り付けられている。また、ピストン部材３とＢＣＳ４との間には油圧室Ｍが形成されている。
A snap ring 21 that locks the stop projection 1 provided on the BCS 4 is attached to the shaft 2. Between the piston member 3 and BCS4 that are hydraulic chamber M is formed.

止め突起部１は、キャンセラー部材５の内径フランジ部５３の軸２側に設けられていて、図２・図３に示す通り、内径フランジ部５３の内径端部５３ａから所定距離外径側に寄った部分を成形した架け橋状の凸部１１により形成されていて、該架け橋状の凸部１１の下に油排出路１２が成形され、これにより油抜き部１０が形成されている。   The stop protrusion 1 is provided on the shaft 2 side of the inner diameter flange portion 53 of the canceller member 5, and as shown in FIGS. 2 and 3, approaches the outer diameter side by a predetermined distance from the inner diameter end portion 53 a of the inner diameter flange portion 53. An oil discharge passage 12 is formed under the bridge-like convex portion 11, and thereby an oil drain portion 10 is formed.

すなわち、プレスポンチ等でキャンセラー部材５の板材に架け橋状の凸部１１を成形して軸２に取り付けられているスナップリング２１に係止する止め突起部１が形成されると同時に同一作業で油排出路１２が成形され、油圧室から油を排出するための油抜き部１０が形成されることになる。よって成形工程を簡素化でき、加工コストの低減を図ることが可能な形状になっている。   That is, a bridge-like convex portion 11 is formed on a plate material of the canceller member 5 by a press punch or the like, and the stop projection 1 that is locked to the snap ring 21 attached to the shaft 2 is formed, and at the same time, the oil is operated in the same operation. The discharge passage 12 is formed, and the oil draining portion 10 for discharging oil from the hydraulic chamber is formed. Therefore, the molding process can be simplified and the processing cost can be reduced.

また、架け橋状の凸部１１である止め突起部１の下の同一箇所に油抜き部１０が成形されるので，係止力を高めるために架け橋状の凸部１１の断面高さを高くすると、スナップリング２１に止め突起部１が係止されたときのスナップリング２１に塞がれる油排出路１２の面積の割合を少なくすることができ、油排出性を向上することが可能となる。   Further, since the oil drainage portion 10 is formed at the same location under the stop projection portion 1 that is the bridge-like convex portion 11, if the cross-sectional height of the bridge-like convex portion 11 is increased in order to increase the locking force, The ratio of the area of the oil discharge path 12 that is blocked by the snap ring 21 when the stop protrusion 1 is locked to the snap ring 21 can be reduced, and the oil discharge performance can be improved.

なお、架け橋状の凸部１１の裾角部１１ｃは、係止するスナップリング２１との外れ防止のためにＲ形状となっている。   In addition, the hem | angular part 11c of the bridge-like convex part 11 becomes R shape in order to prevent disengagement with the snap ring 21 to latch.

また、本実施形態においては、架け橋状の凸部１１の形状は、手前側のみ開口する形状としているが、手前側と奥側の両側とも開口する形状としても良い。更に、本実施形態における軸２とは、軸２そのものである場合の他にシリンダーの内周の周壁も含む概念である。したがって、スナップリング２１は、軸２に取り付けられている場合の他にシリンダーの内周の周壁に取り付けられている場合もある。   Moreover, in this embodiment, although the shape of the bridge-like convex part 11 is a shape that opens only on the near side, it may be a shape that opens on both the near side and the far side. Furthermore, the shaft 2 in the present embodiment is a concept including the inner peripheral wall of the cylinder in addition to the shaft 2 itself. Therefore, the snap ring 21 may be attached to the inner peripheral wall of the cylinder in addition to the case where the snap ring 21 is attached to the shaft 2.

また、架け橋状の凸部１１が形成されている位置は、スナップリング２１の外径縁部２１ａからの距離Ｌが図２に示すように中央部１１ａと両側部１１ｂとで同一になるように形成しても良く、また、図４に示すように、スナップリング２１の外径縁部２１ａからの中央部１１ａの距離Ｌ１の方が両側部１１ｂの距離Ｌ２よりも長く、従って中央部１１ａが外径側に凹んだ形状であっても良い。 Further, the position where the bridge-like convex portion 11 is formed is such that the distance L from the outer diameter edge portion 21a of the snap ring 21 is the same in the central portion 11a and both side portions 11b as shown in FIG. It formed even better, and as shown in FIG. 4, longer than the central portion 11a distance L 2 towards the distance L 1 is both side portions 11b of the outer diameter edge 21a of the snap ring 21, thus the central portion 11a may be a shape recessed on the outer diameter side.

本発明に係る止め突起部を含むＢＣＳの断面図Sectional view of BCS including stop projection according to the present invention 図１における止め突起部のＡ矢視平面図FIG. 1 is a plan view of the stopper projection in FIG. 図１における止め突起部のＡ矢視斜視図A perspective view of the stop projection in FIG. 別の実施形態に係る止め突起部の平面図The top view of the stop projection part concerning another embodiment 従来例に係る止め突起部の平面図Plan view of stop projection according to conventional example 従来例に係る止め突起部の斜視図The perspective view of the stop projection part concerning a prior art example

符号の説明Explanation of symbols

１ 止め突起部
１０ 油抜き部
１１ 凸部
１２ 油排出路
２ 軸
２１ スナップリング
３ ピストン部材
４ ボンデッド・キャンセラー・シール（ＢＣＳ）
４１ シールリップ
５ キャンセラー部材
５１ 円筒部
５２，５３ フランジ部 DESCRIPTION OF SYMBOLS 1 Stop projection part 10 Oil drain part 11 Convex part 12 Oil discharge path 2 Shaft 21 Snap ring 3 Piston member 4 Bonded canceller seal (BCS)
41 Seal lip 5 Canceller member 51 Cylindrical part 52, 53 Flange part

Claims (1)

金属材料の板材をプレス加工により成形したキャンセラー部材と、前記キャンセラー部材に接着され、軸方向に往復動するピストン部材の周面に摺接する外周側のシールリップと、前記キャンセラー部材に形成され、軸に取り付けられたスナップリングに係止する内周側の止め突起部とを備えたボンデッド・キャンセラー・シールにおいて、
前記止め突起部が、前記キャンセラー部材の内径フランジ部を半抜き加工して成形した凸部からなり、この半抜き加工により前記凸部に形成された開口が、油圧室から油を排出するための油抜き部をなすことを特徴とするボンデッド・キャンセラー・シール。
 A canceller member formed by pressing a metal plate material, a seal lip on the outer peripheral side that is bonded to the canceller member and slidably contacts the peripheral surface of the piston member that reciprocates in the axial direction, and is formed on the canceller member. In a bonded canceller seal provided with a stopper projection on the inner peripheral side that is locked to a snap ring attached to
The stop projection part is a convex part formed by half-cutting the inner diameter flange part of the canceller member, and the opening formed in the convex part by this half-punching process is for discharging oil from the hydraulic chamber. Bonded canceller seal characterized by oil drain .
JP2005133986A 2005-05-02 2005-05-02 Bonded canceller seal Active JP4835822B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2008128392A (en) * 2006-11-22 2008-06-05 Nok Corp Cancel plate

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JPH023706A (en) * 1988-06-13 1990-01-09 Nissan Motor Co Ltd Clutch tightening mechanism of automatic transmission
JP2816562B2 (en) * 1989-05-09 1998-10-27 アイシン・エィ・ダブリュ株式会社 Hydraulic system in automatic transmission
JP2000186764A (en) * 1998-12-22 2000-07-04 Jatco Corp Automatic transmission
JP3432453B2 (en) * 1999-05-18 2003-08-04 ダイハツ工業株式会社 Hydraulic clutch canceller structure
JP3737665B2 (en) * 2000-01-31 2006-01-18 ジヤトコ株式会社 Automatic transmission clutch structure
JP4042473B2 (en) * 2001-08-01 2008-02-06 Ｎｏｋ株式会社 Sealing device
JP3743425B2 (en) * 2002-06-18 2006-02-08 トヨタ自動車株式会社 Double interrupter
JP2004036651A (en) * 2002-06-28 2004-02-05 Aisin Aw Co Ltd Frictional engagement device of automatic transmission
JP2005351362A (en) * 2004-06-10 2005-12-22 Jatco Ltd Centrifugal cancellation mechanism in automatic transmission

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