Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3549771B2 - Hanging cam unit - Google Patents
[go: Go Back, main page]

JP3549771B2 - Hanging cam unit - Google Patents

Hanging cam unit Download PDF

Info

Publication number
JP3549771B2
JP3549771B2 JP14009699A JP14009699A JP3549771B2 JP 3549771 B2 JP3549771 B2 JP 3549771B2 JP 14009699 A JP14009699 A JP 14009699A JP 14009699 A JP14009699 A JP 14009699A JP 3549771 B2 JP3549771 B2 JP 3549771B2
Authority
JP
Japan
Prior art keywords
cam
mounting base
cam slider
elastic member
fixed
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
Application number
JP14009699A
Other languages
Japanese (ja)
Other versions
JP2000326024A (en
Inventor
昌宏 柴田
正弘 樋口
啓雄 三島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankyo Oilless Industries Inc
Original Assignee
Sankyo Oilless Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sankyo Oilless Industries Inc filed Critical Sankyo Oilless Industries Inc
Priority to JP14009699A priority Critical patent/JP3549771B2/en
Publication of JP2000326024A publication Critical patent/JP2000326024A/en
Application granted granted Critical
Publication of JP3549771B2 publication Critical patent/JP3549771B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Transmission Devices (AREA)
  • Punching Or Piercing (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、プレス金型におけるカムユニットに係り、例えば、自動車用のボディフレームに小型の穴を明けるために使用される吊りカムユニットに関する。
【0002】
【従来の技術】
従来、吊りカムユニットは、図5(イ)、(ロ)に示すように、通常のカムユニットとは上下を逆にして取り付けるもので、上下移動する移動金型20に固定された取付ベース21と、該取付ベース21に支持され弾性部材22で戻り方向に付勢されて所望ストロークで所定方向に往復移動されるカムスライダー23と、該カムスライダー23を傾斜した当接面24aで作用方向に移動させもので固定金型25に固定されるカムドライバー24とからなる吊りカムユニットで構成されている。
【0003】
前記カムスライダー23の先端面23aには、リテーナを介して穴明け用のパンチが取付けられる。そして、前記パンチを所定のストロークで斜め方向に往復移動させて、被加工物である自動車用のボディフレーム等に穴を明けている。
【0004】
【発明が解決しようとする課題】
しかしながら、上記従来の吊りカムユニットは、取付ベース21とカムスライダー23との組立を、図に示すように、カムスライダー23の上部略中央に設けた凹部に、ガイドバー26を嵌合させ、更に当該カムスライダー23の上部に平板状のプレート27をカバーさせて六角ボルト28固定し、前記ガイドバー26にカムスライダー23を吊持させた状態で、当該ガイドバー26を前記取付ベース21に六角ボルトで取り付ける構造である。
【0005】
前記ガイドバー26には、突出部26aが垂設され、この突出部26aの内側壁にスプリングガイド棒29が略水平に固定され、このスプリングガイド棒29に弾性部材22であるコイルスプリングが嵌装される。よって、図6に示すように、スプリングガイド棒29とコイルスプリングとをカムスライダー23の凹部に嵌装させながら当該カムスライダー23の上部に前記ガイドバー26を嵌合させる手順となる。
【0006】
このように、前記取付ベース21とカムスライダー23との組立構造は、前記コイルスプリング等の装着を含めて手順に制約があって、部品点数も多く手間が掛かって工数がかかるという課題がある。本発明に係る吊りカムユニットは、このような課題を解消するために提案されるものである。
【0007】
【課題を解決するための手段】
本発明に係る吊りカムユニットの上記課題を解決するための要旨は、移動金型に固定された取付ベースと、該取付ベースに支持され弾性部材で戻り方向に付勢されて所望ストロークで所定方向に往復移動されるカムスライダーと、該カムスライダーを当接面で作用方向に移動させもので固定金型に固定されるカムドライバーとからなる吊りカムユニットであって、
前記取付ベースにカムスライダーを支持させる構造は、当該取付ベースとカムスライダーとの両側壁間に係合し該カムスライダーを所定方向へ摺動自在に挟装して支持するスライドキーパーのみによって支持されるものであると共に、
前記弾性部材は、カムスライダーの凹部に収納され、この弾性部材の一端側が前記取付ベースの取付孔に嵌合されるバネガイドのバネ座に当てて支持されることにより、前記凹部を貫通し取付ベースに固定されるカムドライバー吊持用のガイドバーを不要にしたことである。
【0009】
本発明に係る吊りカムユニットによれば、前記スライドキーパーによって、例えば、取付ベースにカムスライダーが挟装されて摺動自在に支持され、簡易な構造によって構成されることになり、部品点数が減少すると共に組立易くなり分解交換等も容易となり、また、吊りカムユニット全体の重量も軽減されてコンパクトになる。更に、スライドキーパーの取付精度を高めることで、例えば、該スライドキーパーとカムスライダーとの間に所望のクリアランスが確保されて、吊りカムユニットとしての安定したパンチ加工性能を維持できるものである。
【0010】
【発明の実施の形態】
次に、本発明に係る吊りカムユニットについて図面を参照して説明する。なお、発明の理解の容易のため従来例に対応する部分には従来例と同一符号を付けて説明する。
【0011】
本発明の吊りカムユニット1は、図1乃至図2に示すように、移動金型20に固定された取付ベース2と、該取付ベース2に支持され弾性部材(コイルスプリング)22で戻り方向に付勢されて、所望ストロークで所定方向(戻り方向と作用方向)に往復移動されるカムスライダー3と、該カムスライダー3を当接面24aで作用方向に移動させもので、固定金型25に固定されるカムドライバー24とからなる。
【0012】
前記取付ベース2とカムスライダー3とは、例えば、当該取付ベース2の側面において、肉部を削ぎ落として挟幅にした両側壁2a,2bのそれぞれに六角ボルト等で固定して設けられるもので、基部4aが側壁2a,2bに固定されるとともに先端部4bがカムスライダー3の上部に設けられたスライド溝3aに係合して、当該カムスライダー3を挟装して支持するスライドキーパー4,4によって組み立てらている。
【0013】
前記スライドキーパー4,4は、例えば、図2乃至図3(イ)に示すように、矩形平板状のブロックであり、基部4a側に取り付け固定用のボルト孔4cが貫通して設けられ、先端部4bにはL字型の係合部4dが設けられて、形成されている。
【0014】
一方、前記カムスライダー3の上部には、前記係合部4dが嵌合するスライド溝3aが両側壁に一対設けられ、その溝深さは、その溝底面3bに対向する前記係合部4dの端面4eとの間で間隙が生じるように設定される。
【0015】
また、図3(ロ)に示すように、前記スライドキーパー4,4によって挟装されているカムスライダー3の部分(上部)において、該スライドキーパー4の内壁面4fとカムスライダー3の側壁面3cとの間に、所望のクリアランスαが設けられている。
【0016】
前記スライドキーパー4を取付ベース2の側壁2a,2bに高精度に位置決めして取り付けることで、カムスライダー3の側壁面3cとの間に、クリアランスαにして適度な間隙が設定できるものである。
【0017】
また、図2に示すように、カムスライダー3を戻り方向に付勢する弾性部材であるコイルスプリング22を支持するバネガイド5は、バネ座5aと位置決め突起5bと、嵌合突起5cとからなる。該バネガイド5は、取付けに際しては、図4に示すように、取付ベース2における取付孔2cに前記嵌合突起5cを差し込んで嵌合させ(遊嵌状態でもよい)、凹部3dにコイルスプリング22を収納して、該コイルスプリング22の一端側を前記バネ座5aに当てながら押さえつけて、カムスライダー3を取付ベースにセットするものである。
【0018】
前記バネガイド5の位置決め突起5bは、従来のバネガイドに比べて著しく長さが短くなり、カムスライダー3の組立が容易になる。
このようにして、本発明の吊りカムユニット1は、前記スライドキーパー4,4によってカムスライダー3を挟装する簡易な構造となって組立が容易であり、取付ベース2の肉厚も薄くなって重量が軽量化されるものである。カムスライダー3の往復移動も前記クリアランスαが維持されて、スムーズな往復移動となるものである。
【0019】
【発明の効果】
以上説明したように、本発明に係る吊りカムユニットは、移動金型に固定された取付ベースと、該取付ベースに支持され弾性部材で戻り方向に付勢されて所望ストロークで所定方向に往復移動されるカムスライダーと、該カムスライダーを当接面で作用方向に移動させもので固定金型に固定されるカムドライバーとからなる吊りカムユニットであって、前記取付ベースにカムスライダーを支持させる構造は、当該取付ベースとカムスライダーとの両側壁間に係合し該カムスライダーを所定方向へ摺動自在に挟装して支持するスライドキーパーのみによって支持されるものであると共に、前記弾性部材は、カムスライダーの凹部に収納され、この弾性部材の一端側が前記取付ベースの取付孔に嵌合されるバネガイドのバネ座に当てて支持されることにより、前記凹部を貫通し取付ベースに固定されるカムドライバー吊持用のガイドバーを不要にしたので、吊りカムユニットとして部品点数が削減され、かつ、簡易な構造となって組立・分解が容易であり、取付ベースの肉厚も薄くなって重量が軽量化されコンパクトになるという優れた効果を奏するものである。
【図面の簡単な説明】
【図1】本発明に係る吊りカムユニットの斜視図である。
【図2】同本発明に係る吊りカムユニットの正面図である。
【図3】同本発明に係る吊りカムユニットの中央部分の断面図(イ)、その一部の拡大断面図(ロ)である。
【図4】同本発明に係る吊りカムユニットの組立の様子を示す説明図である。
【図5】従来例に係る吊りカムユニットの断面図(イ)、正面図(ロ)である。
【図6】同従来例に係る吊りカムユニットの一部拡大断面図である。
【符号の説明】
1 吊りカムユニット、2 取付ベース、3 カムスライダー、
4 スライドキーパー、5 バネガイド。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cam unit in a press die, and for example, relates to a suspension cam unit used for drilling a small hole in a body frame for an automobile.
[0002]
[Prior art]
Conventionally, as shown in FIGS. 5 (a) and 5 (b), the hanging cam unit is mounted upside down with respect to a normal cam unit, and has a mounting base 21 fixed to a movable mold 20 which moves up and down. And a cam slider 23 supported by the mounting base 21 and urged in a return direction by an elastic member 22 to reciprocate in a predetermined direction at a desired stroke, and an inclined contact surface 24a of the cam slider 23 in the action direction. It is constituted by a suspended cam unit consisting of a cam driver 24 which is moved and fixed to a fixed mold 25.
[0003]
A punch for drilling is attached to the tip surface 23a of the cam slider 23 via a retainer. Then, the punch is reciprocated in a diagonal direction at a predetermined stroke to make a hole in a body frame for an automobile, which is a workpiece.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional suspension cam unit, assembling the mounting base 21 and the cam slider 23, as shown in FIG. 5 , the guide bar 26 is fitted into a concave portion provided substantially at the upper center of the cam slider 23, Further, a flat plate 27 is covered on the upper part of the cam slider 23 and fixed with a hexagonal bolt 28 , and the guide bar 26 is attached to the mounting base 21 while the cam slider 23 is suspended by the guide bar 26. It is a structure that is attached with hexagon bolts.
[0005]
A projecting portion 26a is vertically provided on the guide bar 26, and a spring guide bar 29 is fixed to the inner wall of the projecting portion 26a substantially horizontally. A coil spring as the elastic member 22 is fitted to the spring guide bar 29. Is done. Therefore, as shown in FIG. 6, the procedure is such that the guide bar 26 is fitted to the upper part of the cam slider 23 while the spring guide rod 29 and the coil spring are fitted in the recess of the cam slider 23.
[0006]
As described above, the assembly structure of the mounting base 21 and the cam slider 23 has a problem in that the procedure including the mounting of the coil spring and the like is restricted, and the number of parts is large, labor is required, and man-hours are required. The suspension cam unit according to the present invention is proposed to solve such a problem.
[0007]
[Means for Solving the Problems]
The gist of the present invention for solving the above-mentioned problems of the hanging cam unit according to the present invention includes a mounting base fixed to a movable mold, a supporting direction supported by the mounting base, urged by an elastic member in a return direction, and a predetermined stroke at a desired stroke. reciprocating the cam slider to be, a suspension cam unit comprising a cam driver to be fixed to the cam slider in the fixed mold in which Before moving to the working direction abutment surfaces,
The structure for supporting the cam slider on the mounting base is supported only by a slide keeper that engages between both side walls of the mounting base and the cam slider and slidably sandwiches and supports the cam slider in a predetermined direction. And
The elastic member is housed in a concave portion of the cam slider, and one end of the elastic member is supported against a spring seat of a spring guide fitted into a mounting hole of the mounting base, so that the elastic member penetrates the concave portion and is attached to the mounting base. This eliminates the need for a guide bar for hanging the cam driver, which is fixed to the camera.
[0009]
According to the hanging cam unit according to the present invention, for example, the slide keeper allows the cam slider to be slidably supported by being sandwiched by the mounting base, and has a simple structure, thereby reducing the number of parts. In addition, assembly becomes easy, disassembly and replacement become easy, and the weight of the entire suspension cam unit is reduced to make it compact. Further, by increasing the mounting accuracy of the slide keeper, for example, a desired clearance is secured between the slide keeper and the cam slider, and stable punching performance as a suspended cam unit can be maintained.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a suspension cam unit according to the present invention will be described with reference to the drawings. Note that, for easy understanding of the invention, portions corresponding to the conventional example are denoted by the same reference numerals as the conventional example.
[0011]
As shown in FIGS. 1 and 2, the hanging cam unit 1 of the present invention includes a mounting base 2 fixed to a movable mold 20 and an elastic member (coil spring) 22 supported by the mounting base 2 in a return direction. is energized, the desired stroke and the cam slider 3 is reciprocally moved in a predetermined direction (return direction the working direction) by, those of the cam slider 3 Before moving to the working direction in the abutment surface 24a, the stationary die 25 And a cam driver 24 fixed to the cam driver.
[0012]
The mounting base 2 and the cam slider 3 are provided, for example, on the side surfaces of the mounting base 2 by fixing with hexagonal bolts or the like to the side walls 2a and 2b, each of which is formed by shaving a meat portion to have a narrow width. The base 4a is fixed to the side walls 2a, 2b, and the tip 4b is engaged with a slide groove 3a provided on the upper part of the cam slider 3, so that the slide keeper 4, which sandwiches and supports the cam slider 3, is provided. 4 assembled.
[0013]
The slide keeper 4, 4 is, for example, a rectangular flat plate-like block as shown in FIGS. 2 and 3 (a), and a bolt hole 4c for mounting and fixing is provided through the base 4a side. The portion 4b is provided with an L-shaped engaging portion 4d.
[0014]
On the other hand, a pair of slide grooves 3a in which the engagement portions 4d are fitted are provided on both sides of the upper portion of the cam slider 3, and the depth of the groove is equal to that of the engagement portions 4d facing the groove bottom surface 3b. It is set so that a gap is generated between the end face 4e.
[0015]
Further, as shown in FIG. 3B, at a portion (upper portion) of the cam slider 3 sandwiched by the slide keeper 4, 4, an inner wall surface 4f of the slide keeper 4 and a side wall surface 3c of the cam slider 3 are provided. , A desired clearance α is provided.
[0016]
By positioning and mounting the slide keeper 4 on the side walls 2a and 2b of the mounting base 2 with high precision, an appropriate gap can be set as a clearance α between the slide keeper 4 and the side wall surface 3c of the cam slider 3.
[0017]
As shown in FIG. 2, the spring guide 5 supporting the coil spring 22, which is an elastic member for urging the cam slider 3 in the return direction, includes a spring seat 5a, a positioning projection 5b, and a fitting projection 5c. When the spring guide 5 is mounted, as shown in FIG. 4, the fitting protrusion 5c is inserted into the mounting hole 2c of the mounting base 2 to fit (may be loosely fitted), and the coil spring 22 is fitted into the recess 3d. The cam slider 3 is stored and pressed down while one end of the coil spring 22 is pressed against the spring seat 5a to set the cam slider 3 on the mounting base.
[0018]
The length of the positioning projection 5b of the spring guide 5 is significantly shorter than that of the conventional spring guide, and the assembly of the cam slider 3 becomes easy.
In this manner, the suspension cam unit 1 of the present invention has a simple structure in which the cam slider 3 is sandwiched by the slide keeper 4 and 4 and is easy to assemble, and the thickness of the mounting base 2 is reduced. The weight is reduced. The reciprocating movement of the cam slider 3 is also a smooth reciprocating movement while maintaining the clearance α.
[0019]
【The invention's effect】
As described above, the suspension cam unit according to the present invention includes the mounting base fixed to the movable mold, the reciprocating movement in the predetermined direction at the desired stroke by being urged in the return direction by the elastic member supported by the mounting base. a cam slider that is, a suspension cam unit comprising a cam driver to be fixed to the cam slider in the fixed mold in which Before moving to the working direction in the abutment surface, thereby supporting the cam slider to said mounting base The structure is supported only by a slide keeper that engages between both side walls of the mounting base and the cam slider and slidably sandwiches and supports the cam slider in a predetermined direction, and the elastic member. Is accommodated in a concave portion of the cam slider, and one end of the elastic member is supported against a spring seat of a spring guide fitted in a mounting hole of the mounting base. By, since the need for guide bar of cam drivers hanging fixed to the mounting base through said recess, which reduces the number of parts as a suspension cam unit, and assembly and disassembly becomes simple structure It is easy, and the thickness of the mounting base is also reduced, so that the weight is reduced and the compactness is achieved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a suspension cam unit according to the present invention.
FIG. 2 is a front view of the suspension cam unit according to the present invention.
FIG. 3 is a sectional view (a) of a central portion of the hanging cam unit according to the present invention, and an enlarged sectional view (b) of a part thereof.
FIG. 4 is an explanatory view showing a state of assembling the suspension cam unit according to the present invention.
FIG. 5 is a cross-sectional view (a) and a front view (b) of a hanging cam unit according to a conventional example.
FIG. 6 is a partially enlarged cross-sectional view of the hanging cam unit according to the conventional example.
[Explanation of symbols]
1 hanging cam unit, 2 mounting base, 3 cam slider,
4 Slide keeper, 5 spring guide.

Claims (1)

移動金型に固定された取付ベースと、該取付ベースに支持され弾性部材で戻り方向に付勢されて所望ストロークで所定方向に往復移動されるカムスライダーと、該カムスライダーを当接面で作用方向に移動させもので固定金型に固定されるカムドライバーとからなる吊りカムユニットであって、
前記取付ベースにカムスライダーを支持させる構造は、当該取付ベースとカムスライダーとの両側壁間に係合し該カムスライダーを所定方向へ摺動自在に挟装して支持するスライドキーパーのみによって支持されるものであると共に、
前記弾性部材は、カムスライダーの凹部に収納され、この弾性部材の一端側が前記取付ベースの取付孔に嵌合されるバネガイドのバネ座に当てて支持されることにより、前記凹部を貫通し取付ベースに固定されるカムドライバー吊持用のガイドバーを不要にしたこと、
を特徴とする吊りカムユニット。
A mounting base fixed to the movable mold, a cam slider supported by the mounting base, urged in a return direction by an elastic member, and reciprocated in a predetermined direction with a desired stroke, and the cam slider acting on the contact surface a suspension cam unit comprising a cam driver to be fixed to the fixed mold in which Before moving direction,
The structure for supporting the cam slider on the mounting base is supported only by a slide keeper that engages between both side walls of the mounting base and the cam slider and slidably sandwiches and supports the cam slider in a predetermined direction. And
The elastic member is housed in a concave portion of the cam slider, and one end of the elastic member is supported against a spring seat of a spring guide fitted into a mounting hole of the mounting base, so that the elastic member penetrates the concave portion and is attached to the mounting base. The guide bar for hanging the cam driver fixed to the
A hanging cam unit.
JP14009699A 1999-05-20 1999-05-20 Hanging cam unit Expired - Lifetime JP3549771B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14009699A JP3549771B2 (en) 1999-05-20 1999-05-20 Hanging cam unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14009699A JP3549771B2 (en) 1999-05-20 1999-05-20 Hanging cam unit

Publications (2)

Publication Number Publication Date
JP2000326024A JP2000326024A (en) 2000-11-28
JP3549771B2 true JP3549771B2 (en) 2004-08-04

Family

ID=15260866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14009699A Expired - Lifetime JP3549771B2 (en) 1999-05-20 1999-05-20 Hanging cam unit

Country Status (1)

Country Link
JP (1) JP3549771B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002346635A (en) * 2001-05-28 2002-12-03 Sankyo Oilless Industry Inc Cam unit
JP4221937B2 (en) * 2002-03-07 2009-02-12 オイレス工業株式会社 Cam device
JP5801625B2 (en) * 2011-06-30 2015-10-28 三協オイルレス工業株式会社 Hanging cam device
CN103861953B (en) * 2014-04-02 2015-07-22 安徽江淮汽车股份有限公司 Wedge mechanism
JP5941199B2 (en) * 2015-07-15 2016-06-29 三協オイルレス工業株式会社 Sharing method of suspension cam device
JP6843444B2 (en) * 2016-10-19 2021-03-17 三協オイルレス工業株式会社 Cam device

Also Published As

Publication number Publication date
JP2000326024A (en) 2000-11-28

Similar Documents

Publication Publication Date Title
JP3545618B2 (en) Cam slider and cam unit
JP3549771B2 (en) Hanging cam unit
BRPI0812365B1 (en) large and durable forming tool technology
JPWO1997004894A1 (en) Cam for press die
US6139001A (en) Jaw assembly for workholding apparatus
JP2001138778A (en) Seat slide device
JPS6211931B2 (en)
JP2004047141A (en) Electromagnetic contactor
CN215315010U (en) Notching device for automobile armrest framework
EP1520638A1 (en) Pierce cam
JP3648701B2 (en) Punch retainer device for press
JP2009090299A (en) Cam structure of press die
EP1136151B1 (en) Cam unit equipped with self-centering means
JPS624342Y2 (en)
CN113369366A (en) Notching device for automobile armrest framework
JP2002346635A (en) Cam unit
JP2000301264A (en) Cam unit
CN219724219U (en) Bending die for curved front frame of television
KR20040082842A (en) Piercing press
JPS6053639B2 (en) electric razor
CN217044227U (en) Movable punch assembly and cold punching die
JPH09220699A (en) Die set device
JPS6216160A (en) Dot matrix printing head
JP2001001080A (en) Mounting structure for die
JPS5830544Y2 (en) Vibrating electric shaver vibrator mounting structure

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040412

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040421

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080430

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090430

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090430

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100430

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100430

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110430

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120430

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120430

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130430

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130430

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140430

Year of fee payment: 10

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term