JP3338189B2 - Reciprocating sealing device - Google Patents
Reciprocating sealing deviceInfo
- Publication number
- JP3338189B2 JP3338189B2 JP19221894A JP19221894A JP3338189B2 JP 3338189 B2 JP3338189 B2 JP 3338189B2 JP 19221894 A JP19221894 A JP 19221894A JP 19221894 A JP19221894 A JP 19221894A JP 3338189 B2 JP3338189 B2 JP 3338189B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- seal body
- housing
- mounting hole
- seal
- 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 - Fee Related
Links
Landscapes
- Actuator (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、油圧シリンダのピス
トンロッド等のように、往復運動する軸部のシールを行
う往復動用密封装置に関する。特に、シール本体自体は
ゴム状弾性体でできており、軸受とセットで用いる往復
動用密封装置について、装着性及び抜け性を改良したも
のに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating sealing device for sealing a reciprocating shaft portion such as a piston rod of a hydraulic cylinder. In particular, the present invention relates to a sealing device for reciprocating motion used in a set together with a bearing, in which a seal body itself is made of a rubber-like elastic body and which has improved mounting and detachability.
【０００２】[0002]
【従来の技術】従来のこの種の往復動用密封装置として
は、たとえば、図２に示すようなものが知られている。
すなわち、この往復動用密封装置は、ハウジング１００
に設けられた取付穴１０１に嵌合される筒状の軸受１０
２と、軸受１０２の端部に装着されるゴム状弾性体単独
のシール本体１０３と、から構成されている。2. Description of the Related Art As a conventional reciprocating sealing device of this type, for example, the one shown in FIG. 2 is known.
That is, the sealing device for reciprocating motion is
Cylindrical bearing 10 fitted in the mounting hole 101 provided in the
2 and a seal body 103 made of a rubber-like elastic body alone and attached to an end of the bearing 102.
【０００３】シール本体１０３の外周はハウジング１０
０の取付穴１０１内周に嵌着され、軸受１０２に支持さ
れる往復動軸１０４の外周に摺動自在に密封接触するリ
ップ１０５を備えている。The outer periphery of the seal body 103 is
A lip 105 is fitted on the inner periphery of the mounting hole 101 and is in slidable sealing contact with the outer periphery of the reciprocating shaft 104 supported by the bearing 102.
【０００４】シール本体１０３と軸受１０２との合わせ
面は、軸受１０２の内径側端部にはリップ１０５の付け
根の形状に合わせた形で突出する突出部１０６が設けら
れており、この突出部１０６によってリップ１０５を後
ろから支えている。一方、外径側端部は軸に対して直角
のストレートな面となっている。A mating surface between the seal body 103 and the bearing 102 is provided with a protruding portion 106 at the inner diameter end of the bearing 102 so as to protrude according to the shape of the base of the lip 105. Thus, the lip 105 is supported from behind. On the other hand, the outer diameter side end is a straight surface perpendicular to the axis.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記し
た従来技術では、シール本体１０３をハウジング１００
の取付穴１０１に圧入する場合のシール本体１０３の位
置決めが困難であり、装着にばらつきが出て不安定であ
るという問題があった。その理由は、シール本体１０３
がゴム状弾性体のみでできているために、圧入時にシー
ル本体１０３が変形しやすいことと、ハウジング１００
の取付穴１０１内周にシール本体１０３を嵌着している
だけなので位置決めできないことによる。However, according to the above-mentioned prior art, the seal body 103 is attached to the housing 100.
However, it is difficult to position the seal body 103 when press-fitting into the mounting hole 101, and there is a problem that the mounting is uneven and unstable. The reason is that the seal body 103
Is made of only rubber-like elastic material, the seal body 103 is easily deformed at the time of press-fitting, and the housing 100
This is because positioning cannot be performed because the seal body 103 is merely fitted on the inner periphery of the mounting hole 101.
【０００６】また、シール本体１０３の装着側の圧力が
負圧になった場合に、シール本体１０３が抜けるおそれ
があるという問題もあった。すなわち、軸受１０２に
は、ストップリング１０７があって、ハウジング１００
に対する軸受１０２の圧入組立位置は固定されている
が、シール本体１０３の方は、軸受１０２に対し焼き付
けによる一体のものではないから、シール本体１０３の
外径と、ハウジング１００の内径との間に締め代を設け
ていても、シール本体１０３の装着側（例えば、シール
本体１０３でシールしたい油側）が負圧の場合、あるい
は軸の往復動が数多く繰り返された場合に、図２の矢印
Ａ方向に、シール本体１０３が抜ける可能性がどうして
も生じてしまう。There is also a problem that when the pressure on the mounting side of the seal body 103 becomes negative, the seal body 103 may come off. That is, the bearing 102 has the stop ring 107 and the housing 100
, The press-fitting assembly position of the bearing 102 is fixed, but the seal body 103 is not integrated with the bearing 102 by baking, so that the seal body 103 is located between the outer diameter of the seal body 103 and the inner diameter of the housing 100. Even if the interference is provided, if the mounting side of the seal body 103 (for example, the oil side to be sealed by the seal body 103) is under negative pressure, or if the shaft reciprocates repeatedly, the arrow A in FIG. In the direction, there is a possibility that the seal body 103 may come off.
【０００７】本発明は上記した従来技術の課題を解決す
るためになされたもので、その目的とするところは、シ
ール本体の形状を改良することにより、圧入組立時の位
置決めをしやすくして装着性を向上させ、また、シール
本体がハウジングから抜ける可能性を防いで抜け性の改
良を図ることである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. It is an object of the present invention to improve the shape of a seal body so that positioning during press-fitting can be facilitated. The object is to improve the removability and to prevent the possibility of the seal body coming off the housing to improve the removability.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明にあっては、ハウジングに設けられた取付穴
に嵌合される筒状の軸受と、該軸受の端部に装着され前
記軸受に支持される往復動軸の外周に摺動自在に密封接
触するゴム状弾性体製シール本体と、を備えた往復動用
密封装置において、前記ハウジングの取付穴内周には、
前記シール本体の抜け方向に徐々に小径となるテーパ部
が設けられていて、前記シール本体は前記軸受側の端部
の外周部に突起を有し、前記軸受は、前記シール本体と
の合わせ面に、前記シール本体の端部を押し広げて、前
記ハウジングのテーパ部に向かって前記突起を押しつけ
る形状を呈するリング状の凹部を有し、該リング状の凹
部と前記ハウジングの取付穴内周との間で前記突起を挟
み込んで前記シール本体を固定することを特徴とする。In order to achieve the above object, according to the present invention, there is provided a cylindrical bearing which is fitted in a mounting hole provided in a housing, and which is mounted on an end of the bearing. A seal body made of a rubber-like elastic body that slidably and sealingly contacts the outer periphery of the reciprocating shaft supported by the bearing;
A taper portion having a gradually decreasing diameter is provided in a direction in which the seal main body comes off, the seal main body has a protrusion on an outer peripheral portion of an end on the bearing side, and the bearing is provided with the seal main body.
The mating surface of said push the end of the seal body, has a ring-shaped recess towards the tapered portion exhibits a shape for pressing said projection of said housing, said ring-shaped concave
The seal body is fixed by sandwiching the protrusion between the portion and an inner periphery of a mounting hole of the housing.
【０００９】[0009]
【００１０】[0010]
【作用】本発明は、軸受のリング状の凹部でシール本体
を押し広げて、シール本体に設けた突起をハウジングの
テーパ部に押しつけつつ、その突起をハウジングの取付
穴内周と軸受とで挟み込む構造としたから、シール本体
の装着位置が安定し、固定力も大きくなる。According to the present invention, there is provided a structure in which the seal body is pushed and spread by the ring-shaped concave portion of the bearing, and the projection provided on the seal body is pressed against the tapered portion of the housing and the projection is sandwiched between the inner periphery of the mounting hole of the housing and the bearing. Therefore, the mounting position of the seal body is stabilized, and the fixing force is increased.
【００１１】固定力が大きいので、シール本体が抜ける
場合の抵抗になり、抜けるのを防止する機能が生じる。Since the fixing force is large, it becomes a resistance when the seal body comes off, and a function for preventing the seal body from coming off is produced.
【００１２】また、ハウジングの取付穴内周にテーパ部
を設ければ、装着位置が安定し、抜け防止効果も高ま
る。Further, if a tapered portion is provided on the inner periphery of the mounting hole of the housing, the mounting position is stabilized, and the effect of preventing detachment is enhanced.
【００１３】[0013]
【実施例】以下に本発明を図示の実施例に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments.
【００１４】図１は、本発明の一実施例に係る往復動用
密封装置を示している。FIG. 1 shows a reciprocating sealing device according to an embodiment of the present invention.
【００１５】図において、１は往復動用密封装置全体を
示しており、概略、ハウジング２に設けられた取付穴３
に嵌合される筒状の軸受４と、軸受４の端部に装着され
軸受４に支持される往復動軸５の外周に摺動自在に密封
接触するゴム状弾性体製シール本体６と、を備えてい
る。In FIG. 1, reference numeral 1 denotes an entire reciprocating sealing device, which is generally a mounting hole 3 provided in a housing 2.
A rubber bearing seal body 6 slidably and in sealing contact with the outer periphery of a reciprocating shaft 5 mounted on an end of the bearing 4 and supported by the bearing 4; It has.
【００１６】シール本体６はゴム状弾性体単体で成形さ
れた環状部材で、その外周はハウジング２の取付穴３内
周に嵌着され、内周には往復動軸５に接触するリップ７
が設けられている。このリップ７外周には、リップ７の
緊迫力を補い、また、軸の振れ等に対するリップ７の追
従性をよくするためのスプリング８が装着されている。
また、シール本体６の外周には、ハウジング２の取付穴
３内周との嵌合部のシールを図るべく、ハウジング２内
周に対する締め代を得るべく環状の凸部９が設けられて
いる。The seal body 6 is an annular member formed of a rubber-like elastic body alone, and its outer periphery is fitted into the inner periphery of the mounting hole 3 of the housing 2, and the inner periphery thereof has a lip 7 which contacts the reciprocating shaft 5.
Is provided. A spring 8 is mounted on the outer periphery of the lip 7 to compensate for the tension force of the lip 7 and to improve the followability of the lip 7 to shaft runout and the like.
In addition, an annular convex portion 9 is provided on the outer periphery of the seal main body 6 so as to obtain an interference with respect to the inner periphery of the housing 2 in order to seal a fitting portion with the inner periphery of the mounting hole 3 of the housing 2.
【００１７】シール本体６の軸受４側の端面の外周部に
は環状の突起１０が設けられ、この突起１０が前記ハウ
ジング２の取付穴３内周と軸受４の間で挟み込んで固定
されている。An annular projection 10 is provided on the outer peripheral portion of the end face of the seal body 6 on the bearing 4 side, and the projection 10 is fixed by being sandwiched between the inner circumference of the mounting hole 3 of the housing 2 and the bearing 4. .
【００１８】軸受４には、シール本体６との合わせ面と
なる端面に、まず内径側にはシール本体６のリップ７の
付け根となるテーパ面１１の形状に合わせて、リング状
の突出部１２が設けられている。これはシール本体６の
リップ７の付け根となるテーパ部１１にぴったりくっつ
いて、リップ７が後ろにまくれかえるのを防ぐ働きをし
ている。また、同じく軸受４の合わせ面外周側には、シ
ール本体６の突起１０がぴったり入り、少し突起１０を
外側に広げて、ハウジング２の取付穴３内周に押しつけ
るように、リング状の凹部１３が設けられている。The bearing 4 has a ring-shaped protruding portion 12 on the end face which is the mating face with the seal body 6 and on the inner diameter side the shape of the tapered surface 11 which becomes the base of the lip 7 of the seal body 6. Is provided. This sticks tightly to the tapered portion 11 of the seal body 6 which is the base of the lip 7 and serves to prevent the lip 7 from rolling back. Similarly, the projection 10 of the seal body 6 fits exactly on the outer peripheral side of the mating surface of the bearing 4, and the projection 10 is slightly spread outward and pressed against the inner periphery of the mounting hole 3 of the housing 2. Is provided.
【００１９】軸受４とハウジング２の取付穴３内周との
間には、軸受４の軸方向移動を規制するストップリング
１４が設けられている。A stop ring 14 is provided between the bearing 4 and the inner periphery of the mounting hole 3 of the housing 2 to restrict the axial movement of the bearing 4.
【００２０】また、ハウジング２の取付穴３の内径はス
トレートではなく、軸受４側では内径が大きく、シール
本体６の側では内径が小さい。但しその直径差は小さい
ものである。その直径の変わる箇所は、シール本体６の
突起１０の所であり、どちらかというと突起１０の真ん
中から根本に近いあたりである。また、ハウジング２の
内径の変化は、段で急に変わるのではなく、幅３〜４ｍ
ｍ程度のテーパ部１５で変化するものである。テーパ部
１５は面取りによって構成されている。The inner diameter of the mounting hole 3 of the housing 2 is not straight, but is larger on the bearing 4 side and smaller on the seal body 6 side. However, the diameter difference is small. The place where the diameter changes is the place of the protrusion 10 of the seal body 6, and is rather close to the root from the center of the protrusion 10. Also, the change in the inner diameter of the housing 2 is not suddenly changed in steps, but is 3 to 4 m in width.
It changes at the taper portion 15 of about m. The tapered portion 15 is formed by chamfering.
【００２１】上記実施例によれば、シール本体６に設け
た突起１０をハウジング２の取付穴３内周と軸受４とで
挟み込む構造としたから、シール本体６の装着位置のば
らつきがなくなって装着位置が安定し、固定力も大きく
なる。According to the above embodiment, the projection 10 provided on the seal body 6 is sandwiched between the inner periphery of the mounting hole 3 of the housing 2 and the bearing 4. The position is stable and the fixing force increases.
【００２２】固定力が大きいので、シール本体６が抜け
る場合の抵抗になり、抜けるのを防止する機能が生じ
る。Since the fixing force is large, it becomes a resistance when the seal body 6 comes off, and a function of preventing the seal body 6 from coming off is produced.
【００２３】また、ハウジング２の取付穴３内周にテー
パ部１５を設ければ、装着位置が安定し、抜け防止効果
も高まる。特に、シール本体６の突起１０は、軸受４の
リング状の凹部１３により、やや押し広げられ気味であ
り、テーパ部１５の所で突起１０の圧入代が増えている
のでより一層装着が安定する。Further, if the tapered portion 15 is provided on the inner periphery of the mounting hole 3 of the housing 2, the mounting position is stabilized and the effect of preventing detachment is enhanced. In particular, the protrusion 10 of the seal body 6 is slightly pushed and spread by the ring-shaped recess 13 of the bearing 4, and the mounting of the protrusion 10 at the tapered portion 15 increases, so that the mounting is further stabilized. .
【００２４】このように、シール本体６の装着時にテー
パ部１５が圧入の位置決めの働きをするのと同じよう
に、装着後においても、シール本体６の突起１０は、軸
受４のリング状の凹部１３とテーパ部１５に挟まれて、
シール本体６が図の矢印Ａ方向に抜ける場合の抵抗にな
り、Ａ方向に抜けるのを防止する機能が高まる。As described above, the projections 10 of the seal body 6 remain in the ring-shaped recesses of the bearing 4 in the same manner as the tapered portion 15 functions for positioning the press-fitting when the seal body 6 is mounted. 13 and the tapered portion 15,
This is a resistance when the seal body 6 comes off in the direction of arrow A in the figure, and the function of preventing the seal body 6 from coming off in the direction A increases.
【００２５】[0025]
【発明の効果】以上説明したように、本発明によれば、
軸受のリング状の凹部でシール本体を押し広げて、シー
ル本体に設けた突起をハウジングのテーパ部に押しつけ
つつ、その突起をハウジングの取付穴内周と軸受とで挟
み込む構造としたから、従来のようにシール本体をハウ
ジングの取付穴内周に単に嵌着するだけに比べてシール
本体の装着位置が安定し、固定力も大きくなる。As described above, according to the present invention,
The seal body is pushed and spread by the ring-shaped recess of the bearing, and the projection provided on the seal body is pressed against the tapered portion of the housing, and the projection is sandwiched between the inner periphery of the mounting hole of the housing and the bearing. The mounting position of the seal body is more stable and the fixing force is larger than when the seal body is simply fitted to the inner periphery of the mounting hole of the housing.
【００２６】また、固定力が大きいので、シール本体が
抜ける場合の抵抗になり、シール本体の抜け止めを図る
ことができる。In addition, since the fixing force is large, it becomes a resistance when the seal body comes off, and the seal body can be prevented from coming off.
【００２７】さらに、突起が挟み込まれるハウジングの
取付穴内周にテーパ部を設ければ、より一層装着位置が
安定し、抜け防止効果も高まる。Further, if a tapered portion is provided on the inner periphery of the mounting hole of the housing in which the projection is sandwiched, the mounting position is further stabilized, and the effect of preventing detachment is enhanced.
【図１】図１(ａ)は本発明の一実施例に係る往復動用密
封装置の半断面図、同図(ｂ)は突起部の部分拡大断面図
である。FIG. 1A is a half sectional view of a reciprocating sealing device according to an embodiment of the present invention, and FIG. 1B is a partially enlarged sectional view of a protrusion.
【図２】図２は従来の往復動用密封装置の半断面図であ
る。FIG. 2 is a half sectional view of a conventional reciprocating sealing device.
１ 往復動用密封装置 ２ ハウジング ３ 取付穴 ４ 軸受 ５ 往復動軸 ６ シール本体 ７ リップ ８ スプリング ９ 凸部 １０ 突起 １１ テーパ面 １２ 突出部 １３ 凹部 １４ ストップリング １５ テーパ部 DESCRIPTION OF SYMBOLS 1 Reciprocating sealing device 2 Housing 3 Mounting hole 4 Bearing 5 Reciprocating shaft 6 Seal body 7 Lip 8 Spring 9 Convex part 10 Protrusion 11 Tapered surface 12 Projection part 13 Recess 14 Stop ring 15 Taper part
Claims (1)
る筒状の軸受と、該軸受の端部に装着され前記軸受に支
持される往復動軸の外周に摺動自在に密封接触するゴム
状弾性体製シール本体と、を備えた往復動用密封装置に
おいて、 前記ハウジングの取付穴内周には、前記シール本体の抜
け方向に徐々に小径となるテーパ部が設けられていて、 前記シール本体は前記軸受側の端部の外周部に突起を有
し、 前記軸受は、前記シール本体との合わせ面に、 前記シール本体の端部
を押し広げて、前記ハウジングのテーパ部に向かって前
記突起を押しつける形状を呈するリング状の凹部を有
し、 該リング状の凹部と前記ハウジングの取付穴内周との間
で前記突起を挟み込んで前記シール本体を固定すること
を特徴とする往復動用密封装置。1. A cylindrical bearing fitted in a mounting hole provided in a housing, and slidably and sealingly contact the outer periphery of a reciprocating shaft mounted on an end of the bearing and supported by the bearing. A sealing body for reciprocating motion, comprising: a sealing body made of a rubber-like elastic body; and a taper portion having a gradually decreasing diameter in a direction in which the sealing body is pulled out is provided on an inner periphery of the mounting hole of the housing. Has a protrusion on the outer peripheral portion of the end on the bearing side, the bearing pushes the end of the seal main body to the mating surface with the seal main body and spreads the protrusion toward the tapered portion of the housing. A ring-shaped recess having a shape for pressing the seal, and fixing the seal body by sandwiching the projection between the ring-shaped recess and the inner periphery of the mounting hole of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19221894A JP3338189B2 (en) | 1994-07-22 | 1994-07-22 | Reciprocating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19221894A JP3338189B2 (en) | 1994-07-22 | 1994-07-22 | Reciprocating sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835563A JPH0835563A (en) | 1996-02-06 |
| JP3338189B2 true JP3338189B2 (en) | 2002-10-28 |
Family
ID=16287633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19221894A Expired - Fee Related JP3338189B2 (en) | 1994-07-22 | 1994-07-22 | Reciprocating sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3338189B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11584189B2 (en) * | 2020-09-14 | 2023-02-21 | Hyundai Motor Company | Bush for vehicles and method for assembling the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5045869B2 (en) * | 2005-12-08 | 2012-10-10 | Ｎｏｋ株式会社 | Lip type seal |
| JP2009236177A (en) * | 2008-03-26 | 2009-10-15 | Nok Corp | Sealing structure |
| JP2010038248A (en) * | 2008-08-05 | 2010-02-18 | Jtekt Corp | Rolling bearing device |
-
1994
- 1994-07-22 JP JP19221894A patent/JP3338189B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11584189B2 (en) * | 2020-09-14 | 2023-02-21 | Hyundai Motor Company | Bush for vehicles and method for assembling the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0835563A (en) | 1996-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4026563A (en) | Oil seal with locking bead and O. D. sealing rib | |
| JPS6143003Y2 (en) | ||
| JP3338189B2 (en) | Reciprocating sealing device | |
| JP3293075B2 (en) | Lip type seal | |
| JPH0649973Y2 (en) | Oil seal | |
| JP3762529B2 (en) | Sealing device | |
| JPH0446137Y2 (en) | ||
| JP2579496Y2 (en) | Sealing device | |
| JP2005054827A (en) | Sealing device | |
| JPH02173475A (en) | Elastomer shaft packing for sealing of rotary shaft | |
| JPH0138375Y2 (en) | ||
| JP3493888B2 (en) | Sealing device | |
| JPH0640372Y2 (en) | Oil seal | |
| JPH11141688A (en) | Sealing device | |
| JPH074364Y2 (en) | Sealing device | |
| JP4092548B2 (en) | Valve stem seal | |
| JP2522494Y2 (en) | Sealing device | |
| JPH0720447Y2 (en) | Lip seal | |
| JP3533847B2 (en) | Seal ring | |
| JPH055339Y2 (en) | ||
| JPS6221177Y2 (en) | ||
| JP2533679Y2 (en) | Oil seal | |
| JP2000193097A (en) | Sealing device | |
| JPS6316933Y2 (en) | ||
| JP2002310305A (en) | Sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020709 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080809 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090809 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100809 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100809 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110809 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110809 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120809 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120809 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130809 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |