JP3859314B2 - Mold for shell molding of brake booster - Google Patents

Mold for shell molding of brake booster Download PDF

Info

Publication number
JP3859314B2
JP3859314B2 JP21673297A JP21673297A JP3859314B2 JP 3859314 B2 JP3859314 B2 JP 3859314B2 JP 21673297 A JP21673297 A JP 21673297A JP 21673297 A JP21673297 A JP 21673297A JP 3859314 B2 JP3859314 B2 JP 3859314B2
Authority
JP
Japan
Prior art keywords
shell
die
peripheral wall
punch
brake booster
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
Application number
JP21673297A
Other languages
Japanese (ja)
Other versions
JPH1157876A (en
Inventor
利雄 湯原
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.)
Bosch Corp
Original Assignee
Bosch Corp
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 Bosch Corp filed Critical Bosch Corp
Priority to JP21673297A priority Critical patent/JP3859314B2/en
Publication of JPH1157876A publication Critical patent/JPH1157876A/en
Application granted granted Critical
Publication of JP3859314B2 publication Critical patent/JP3859314B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、バス、トラック等に備えられるブレーキ倍力装置のシェルを深絞り加工する際に用いる成形用金型に関するものである。
【０００２】
【従来の技術】
一般に、バス、トラック等に備えられるのブレーキ倍力装置のシェルは、図７に示すように、一端が開口した円筒状のシェル本体１の開口部に取付フランジ２が形成された構造となっている。
【０００３】
そして、このような形状をしたシェルを製造するには図９に示すように、絞り板３を金型４のポンチ６上に設置し（図９（Ａ））た後、ダイス５を押し下げ（図９（Ｂ））、そのダイス肩５ａによって絞り板３を絞り加工して成形するようになっている（図９（Ｃ））。その後、図８に示すように、強度が要求されるシェル本体１の天井部１ａに補強部材７を取り付けて、加工後のシェル本体１の強度を増すようになっている。
【０００４】
【発明が解決しようとする課題】
ところで、絞り加工後のシェル本体１にこのような補強部材７を後から取り付ける方法では、製造工程が増えてしまう上に、シェル本体１の重量が増大してしまうといった不都合がある。
【０００５】
そのため、強度が要求される天井部１ａの肉厚ｔ1 はそのままで、周壁部１ｂの肉厚ｔ2 のみを天井部１ａの肉厚ｔ1 の４０〜７０％程度まで薄肉化する絞り加工を行うことで、充分な強度を保持しつつ製造工程の簡略化とシェル本体１の軽量化を達成することができる。
【０００６】
しかしながら、従来の金型による絞り加工では周壁部１ｂの肉厚ｔ2 を天井部１ａの肉厚ｔ1 の４０〜７０％程度まで薄肉化することは極めて困難なため、良好な成形品を得ることができなかった。すなわち、絞り加工によってシェル本体１の周壁部１ｂのみを薄肉化するには、ダイス５とポンチ６とのクリアランスを所望の肉厚程度に狭くすることによって行うことになるが、単にダイス５とポンチ６とのクリアランスを狭くしただけでは、ダイス５による絞り加工時にシェル本体１の周壁部１ｂがその応力によって簡単に破断してしまうこととなっていた。
【０００７】
そこで、本発明はこのような課題を有効に解決するために試行錯誤した結果、案出されたものであり、その目的はブレーキ倍力装置のシェルの周壁部の薄肉化を容易・確実に達成することができる新規なブレーキ倍力装置のシェル成形用金型を提供するものである。
【０００８】
【課題を解決するための手段】
上記課題を解決するために本発明は、冷間圧延鋼板を深絞り加工して、天井部と、その天井部から下向きに広がるテーパ部と、そのテーパ部から下方に延びる筒状の周壁部と、その周壁部の下端に外側に延びるよう形成された取付フランジとを有し、上記周壁部の板厚ｔ2 が上記天井部板厚ｔ1 の４０〜７０％となるブレーキ倍力装置のシェルを成形するための金型において、ポンチと、そのポンチと嵌合すべく昇降する筒状のダイスとを備え、それらポンチとダイスとのクリアランスを上記冷間圧延鋼板のスプリングバック分に応じて上記シェルの周壁部の板厚ｔ2 よりも５〜１５％程度狭く設定すると共に、上記ダイス肩の丸み半径Ｒを０．５ｔ2 〜２．０ｔ2 に設定し、上記ポンチの先端部に、上記テーパ部を成形するための面取部を設けたものである。
【０００９】
すなわち、本発明はポンチとダイスとのクリアランスを上記冷間圧延鋼板のスプリングバック分に応じて設定し、ダイス肩の丸み半径Ｒを上記の範囲に設定したものであり、これによって、絞り加工時の破断を招くことなく軽量化と強度を兼ね備えたブレーキ倍力装置のシェルを容易且つ確実に得ることができる。
【００１０】
【発明の実施の形態】
次に、本発明を実施する好適一形態を添付図面を参照しながら説明する。
【００１１】
図１は本発明に係るブレーキ倍力装置のシェル成形用金型の実施の一形態を示す縦断面図、図３はこの成形用金型で得られるブレーキ倍力装置のシェル８の実施の一形態を示す縦断面図である。
【００１２】
図示するように、この金型は円筒状をしたポンチ６と、このポンチ６を嵌合すべく昇降する筒状のダイス５とから構成されており、上述したように、このポンチ６上に冷間圧延鋼板（ＳＰＣ−Ａ〜Ｅ）等の絞り板３を載置した後、ダイス５を降下させることで図３に示すようなブレーキ倍力装置のシェル８を深絞り加工できるようになっている。
【００１３】
また、このシェル８は、図３及び図４に示すように、その天井部１ａの板厚ｔ1 に対してその周壁部１ｂの板厚ｔ2 が４０〜７０％程度の薄さに加工されており、必要な強度を保持しつつ軽量化を達成できるようになっている。
【００１４】
そして、このようなシェル８を深絞り加工するために、本発明は金型に以下に示すような構造をしている。
【００１５】
先ず、図２及び図４に示すように、このダイス５とポンチ６のクリアランスｃはシェル８の周壁部１ｂの板厚ｔ2 よりも約５〜１５％程度狭く設定されている。例えば、このシェル８の天井部１ａの板厚ｔ1 が４．０ｍｍ、周壁部１ｂの板厚ｔ2 が２．０ｍｍの場合にはダイス５とポンチ６とのクリアランスｃは１．７〜１．９ｍｍの幅となっている。すなわち、低炭素鋼である冷間圧延鋼板（ＳＰＣ−Ａ〜Ｅ，ＪＩＳ−Ｎｏ３１４１）等の絞り板３は、深絞り加工後にスプリングバックと称される戻りが約５〜１５％程度発生することから、このクリアランスｃを周壁部１ｂの板厚ｔ2 と同じ２．０ｍｍとすると加工後のスプリングバックによって周壁部１ｂの板厚ｔ2 が所望の値より大きくなってしまうためである。
【００１６】
次に、図５に示すように、ダイス５の内周縁に位置するダイス肩５ａの丸み半径Ｒは周壁部１ｂの板厚ｔ2 に対して０．５ｔ2 〜２．０ｔ2 の範囲に設定されている。例えば、周壁部１ｂの板厚ｔ2 が２．０ｍｍの場合には、ダイス肩５ａの丸み半径Ｒは１．０〜４．０ｍｍとなっている。すなわち、この範囲を超えると、深絞り加工時に絞り板３に加わるダイス肩５ａの応力によって絞り板３が破断してしまい、良好な薄肉化が達成できなくなるからである。尚、このクリアランスｃ及びダイス肩５ａの丸み半径Ｒについて幅を持たせたのは、使用する絞り板３の材質によって加工時の引張り強さ、耐力、伸び、スプリングバック等の機械的・物理的特性が微妙に異なるからである。
【００１７】
そして、このような構造をした金型を用い、従来と同様に冷間圧延鋼板からなる絞り板３を深絞り加工すると、破断などの不都合を招くことなく容易かつ確実に周壁部１ｂの薄肉化を行うことができる。
【００１８】
このように、本発明の深絞り加工用金型は、ポンチとダイスとのクリアランスを冷間圧延鋼板のスプリングバック分に応じてシェルの周壁部の板厚ｔ2 よりも５〜１５％程度狭く設定すると共に、ダイス肩の丸み半径Ｒを０．５〜２．０ｔ2 に設定したため、周壁部１ｂの薄肉化を確実に行うことが可能となり、従来の金型では困難であった軽量化と高強度を兼ね備えたブレーキ倍力装置のシェルを容易且つ確実に得ることができる。尚、ダイス肩５ａの初期食い込みによる破断を防止するために、さらに図６に示すようにダイス肩５ａ内側上部５ｂを数μｍ〜数十μｍ程度削るようにしても良い。
【００１９】
【発明の効果】
以上要するに本発明によれば、深絞り加工時の破断を招くことなく軽量化と強度を兼ね備えたブレーキ倍力装置のシェルを容易且つ確実に得ることができる。従って、従来のような補強部材が不要となって加工工程が省略されるため、製造コストの低下も達成できるといった優れた効果を発揮することができる。
【図面の簡単な説明】
【図１】本発明に係る加工用金型の実施の一形態を示す縦断面図である。
【図２】図１中Ｓ部を示す部分拡大図である。
【図３】本発明の成形用金型で得ることができるブレーキ倍力装置のシェルの一例を示す縦断面図である。
【図４】図３中Ｓ部を示す部分拡大図である。
【図５】図２中Ｓ部を示す部分拡大図である。
【図６】本発明の他の実施の一形態を示す部分拡大図である。
【図７】従来のブレーキ倍力装置のシェルの一例を示す斜視図である。
【図８】（Ａ）は従来のブレーキ倍力装置のシェルの一例を示す縦断面図である。（Ｂ）は図８（Ａ）中Ｓ部を示す部分拡大図である。
【図９】従来のブレーキ倍力装置のシェルの絞り加工の一例を示す工程図である。
【符号の説明】
３ 絞り板
５ ダイス
5a ダイス肩
６ ポンチ
８ シェル
1a 天井部
1b 周壁部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a molding die used when deep drawing a shell of a brake booster provided in a bus, a truck, or the like .
[0002]
[Prior art]
In general, a shell of a brake booster provided in a bus, a truck or the like has a structure in which a mounting flange 2 is formed at an opening of a cylindrical shell body 1 having one end opened as shown in FIG. Yes.
[0003]
Then, in order to manufacture a shell having such a shape, as shown in FIG. 9, the diaphragm plate 3 is placed on the punch 6 of the mold 4 (FIG. 9A), and then the die 5 is pushed down ( 9 (B)), the drawing plate 3 is drawn and formed by the die shoulder 5a (FIG. 9 (C)). After that, as shown in FIG. 8, the reinforcing member 7 is attached to the ceiling portion 1a of the shell main body 1 where strength is required to increase the strength of the shell main body 1 after processing.
[0004]
[Problems to be solved by the invention]
By the way, the method of attaching such a reinforcing member 7 to the shell body 1 after the drawing process has the disadvantage that the manufacturing process is increased and the weight of the shell body 1 is increased.
[0005]
Therefore, the drawing process is performed to reduce the thickness t 2 of the peripheral wall portion 1b to about 40 to 70% of the thickness t 1 of the ceiling portion 1a while keeping the thickness t 1 of the ceiling portion 1a where strength is required. By doing so, simplification of the manufacturing process and weight reduction of the shell body 1 can be achieved while maintaining sufficient strength.
[0006]
However, it is extremely difficult to reduce the wall thickness t 2 of the peripheral wall portion 1b to about 40 to 70% of the wall thickness t 1 of the ceiling portion 1a by drawing with a conventional mold, so that a good molded product is obtained. I couldn't. That is, thinning only the peripheral wall portion 1b of the shell body 1 by drawing is performed by narrowing the clearance between the die 5 and the punch 6 to a desired thickness. If the clearance with 6 is narrowed, the peripheral wall portion 1b of the shell body 1 is easily broken by the stress when the die 5 is drawn.
[0007]
Therefore, the present invention has been devised as a result of trial and error in order to effectively solve such problems, and its purpose is to easily and reliably achieve the thinning of the peripheral wall portion of the shell of the brake booster. The present invention provides a mold for forming a shell of a novel brake booster that can be used.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a deep drawing of a cold-rolled steel sheet, a ceiling portion, a tapered portion extending downward from the ceiling portion, and a cylindrical peripheral wall portion extending downward from the tapered portion. , and a mounting flange formed so as to extend outwardly at the lower end of the peripheral wall portion, the thickness t 2 of the peripheral wall portion 40 to 70 percent Do Lube rake booster of the ceiling plate thickness t 1 A die for forming a shell of a steel sheet is provided with a punch and a cylindrical die that moves up and down to fit the punch, and the clearance between the punch and the die is in accordance with the amount of spring back of the cold-rolled steel sheet. and sets also approximately 5-15% narrower than the thickness t 2 of the peripheral wall portion of the shell Te, the rounding radius R of the die shoulder is set to 0.5t 2 ~2.0t 2, the tip portion of the punch Chamfered part for forming the tapered part Those were.
[0009]
That is, according to the present invention, the clearance between the punch and the die is set in accordance with the amount of spring back of the cold rolled steel sheet, and the round radius R of the die shoulder is set in the above range. Therefore, the shell of the brake booster having both weight reduction and strength can be easily and reliably obtained without causing breakage.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, a preferred embodiment for carrying out the present invention will be described with reference to the accompanying drawings.
[0011]
FIG. 1 is a longitudinal sectional view showing an embodiment of a shell molding die of a brake booster according to the present invention, and FIG. 3 shows an embodiment of a shell 8 of a brake booster obtained with this molding die. It is a longitudinal cross-sectional view which shows a form.
[0012]
As shown in the figure, this mold is composed of a cylindrical punch 6 and a cylindrical die 5 that moves up and down to fit the punch 6. As described above, the mold is cooled on the punch 6. After placing the drawing plate 3 such as a cold rolled steel plate (SPC-A to E), the die 8 is lowered, and the shell 8 of the brake booster as shown in FIG. 3 can be deep drawn. Yes.
[0013]
Further, the shell 8, as shown in FIGS. 3 and 4, the plate thickness t 2 of the peripheral wall portion 1b is processed into thin as 40% to 70% relative to the thickness t 1 of the ceiling portion 1a Thus, weight reduction can be achieved while maintaining the required strength.
[0014]
In order to deep-draw such a shell 8 , the present invention has a structure as shown below in the mold.
[0015]
First, as shown in FIGS. 2 and 4, the clearance c between the die 5 and the punch 6 is set to be about 5 to 15% narrower than the plate thickness t 2 of the peripheral wall portion 1 b of the shell 8 . For example, when the plate thickness t 1 of the ceiling portion 1a of the shell 8 is 4.0 mm and the plate thickness t 2 of the peripheral wall portion 1b is 2.0 mm, the clearance c between the die 5 and the punch 6 is 1.7 to 1. The width is 9 mm. That is, the drawing plate 3 such as a cold rolled steel plate (SPC-A to E, JIS-No 3141), which is a low carbon steel, generates about 5 to 15% of return called a springback after deep drawing. from is because the plate thickness t 2 of the peripheral wall portion 1b by the spring back after processing to the clearance c between the same 2.0mm plate thickness t 2 of the peripheral wall portion 1b becomes larger than a desired value.
[0016]
Next, as shown in FIG. 5, set in the range of 0.5t 2 ~2.0t 2 against the plate thickness t 2 of the rounding radius R peripheral wall 1b of the die shoulder 5a located on the inner periphery of the die 5 Has been. For example, if the plate thickness t 2 of the peripheral wall portion 1b of 2.0mm, the rounding radius R of the die shoulder 5a has a 1.0 to 4.0 mm. That is, if this range is exceeded, the drawing plate 3 is broken by the stress of the die shoulder 5a applied to the drawing plate 3 during the deep drawing process, making it impossible to achieve a good thickness reduction. The clearance c and the rounding radius R of the die shoulder 5a have a width depending on the material of the diaphragm plate 3 to be used, such as mechanical strength, physical strength such as tensile strength, yield strength, elongation, and springback during processing. This is because the characteristics are slightly different.
[0017]
Then, if the die 3 having such a structure is used and the drawing plate 3 made of a cold-rolled steel plate is deep-drawn as in the conventional case, the peripheral wall portion 1b can be thinned easily and reliably without causing inconvenience such as breakage. It can be performed.
[0018]
Thus, deep drawing die of the present invention is about 5-15% than the thickness t 2 of the peripheral wall of the shell in accordance with the clearance between the punch and the die to the springback of the cold-rolled steel sheet narrow In addition to setting, the round radius R of the die shoulder is set to 0.5 to 2.0 t 2 , so that it is possible to reliably reduce the thickness of the peripheral wall portion 1b. A brake booster shell having high strength can be obtained easily and reliably. In order to prevent breakage of the die shoulder 5a due to initial biting, the die shoulder 5a inner upper portion 5b may be further shaved by several μm to several tens μm as shown in FIG.
[0019]
【The invention's effect】
In short, according to the present invention, it is possible to easily and surely obtain a shell of a brake booster that has both weight reduction and strength without causing breakage during deep drawing. Therefore, since a conventional reinforcing member is not required and the processing step is omitted, it is possible to achieve an excellent effect that a reduction in manufacturing cost can be achieved.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a processing mold according to the present invention.
FIG. 2 is a partially enlarged view showing an S portion in FIG.
FIG. 3 is a longitudinal sectional view showing an example of a shell of a brake booster that can be obtained with the molding die of the present invention.
4 is a partially enlarged view showing a portion S in FIG. 3. FIG.
5 is a partially enlarged view showing an S portion in FIG. 2. FIG.
FIG. 6 is a partially enlarged view showing another embodiment of the present invention.
FIG. 7 is a perspective view showing an example of a shell of a conventional brake booster .
FIG. 8A is a longitudinal sectional view showing an example of a shell of a conventional brake booster . (B) is the elements on larger scale which show the S section in FIG. 8 (A).
FIG. 9 is a process diagram showing an example of drawing of a shell of a conventional brake booster .
[Explanation of symbols]
3 Diaphragm plate 5 Dice
5a Dice shoulder 6 Punch 8 shell
1a Ceiling
1b Perimeter wall

Claims (1)

冷間圧延鋼板を深絞り加工して、天井部と、その天井部から下向きに広がるテーパ部と、そのテーパ部から下方に延びる筒状の周壁部と、その周壁部の下端に外側に延びるよう形成された取付フランジとを有し、上記周壁部の板厚ｔ2 が上記天井部板厚ｔ1 の４０〜７０％となるブレーキ倍力装置のシェルを成形するための金型において、
ポンチと、そのポンチと嵌合すべく昇降する筒状のダイスとを備え、
それらポンチとダイスとのクリアランスを上記冷間圧延鋼板のスプリングバック分に応じて上記シェルの周壁部の板厚ｔ2 よりも５〜１５％程度狭く設定すると共に、上記ダイス肩の丸み半径Ｒを０．５〜２．０ｔ2 に設定し、上記ポンチの先端部に、上記テーパ部を成形するための面取部を設けたことを特徴とするブレーキ倍力装置のシェル成形用金型。 Deep- drawn cold-rolled steel sheet so that the ceiling, the taper extending downward from the ceiling, the cylindrical peripheral wall extending downward from the taper, and extending outward to the lower end of the peripheral wall and a formed mounting flange, in a mold for a plate thickness t 2 of the peripheral wall portion forming the shell 40 to 70 percent Do Lube rake booster of the ceiling plate thickness t 1,
A punch and a cylindrical die that moves up and down to fit with the punch ,
The clearance between the punch and the die is set to be about 5 to 15% narrower than the thickness t 2 of the peripheral wall portion of the shell according to the amount of spring back of the cold-rolled steel plate, and the round radius R of the die shoulder is set. A shell molding die for a brake booster , which is set to 0.5 to 2.0 t 2 and is provided with a chamfered portion for molding the tapered portion at the tip of the punch .
JP21673297A 1997-08-11 1997-08-11 Mold for shell molding of brake booster Expired - Fee Related JP3859314B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21673297A JP3859314B2 (en) 1997-08-11 1997-08-11 Mold for shell molding of brake booster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21673297A JP3859314B2 (en) 1997-08-11 1997-08-11 Mold for shell molding of brake booster

Publications (2)

Publication Number Publication Date
JPH1157876A JPH1157876A (en) 1999-03-02
JP3859314B2 true JP3859314B2 (en) 2006-12-20

Family

ID=16693070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21673297A Expired - Fee Related JP3859314B2 (en) 1997-08-11 1997-08-11 Mold for shell molding of brake booster

Country Status (1)

Country Link
JP (1) JP3859314B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115070A (en) * 1973-02-21 1974-11-02
US4412440A (en) * 1981-02-13 1983-11-01 American Can Company Process for making container
JPS6116402U (en) * 1984-07-04 1986-01-30 自動車機器株式会社 booster housing

Also Published As

Publication number Publication date
JPH1157876A (en) 1999-03-02

Similar Documents

Publication Publication Date Title
JP3859314B2 (en) Mold for shell molding of brake booster
JP4076102B2 (en) Sheet metal thickening press method
JP3205730B2 (en) Manufacturing method of latch plate
JP4738956B2 (en) Molding method for vehicle wheel
JP3190264B2 (en) Manufacturing method of T nut
JP2885266B2 (en) Forming method for sheet metal tooth profile parts
JPS5844934A (en) Press forming method of disk for load wheel
JP2843009B2 (en) Light alloy wheel manufacturing apparatus and method
JP3719579B2 (en) Upset press thickening method for press-formed products
JPH01218728A (en) Manufacture of large-sized aluminum wheel for trunk, bus
CN113007243B (en) Bimetal brake drum and manufacturing method of casing thereof
JPS58167050A (en) Forming method of product stepped on outside circumference by cold forging
JP2564913B2 (en) Press die for forming symmetrical parts
JPS6254540A (en) Metallic die for extrusion forming
JP3052748B2 (en) Hourglass hourpiece and its manufacturing method
JPS6032533B2 (en) How to form a cylindrical boss part on a plate material
JP3853226B2 (en) Deep hole punch
JPH09182920A (en) Press die
JP2957263B2 (en) Steering rack shaft and method of manufacturing the same
JPS63215322A (en) Manufacture of rack shaft
JPH0557386A (en) Manufacture of disk for automotive aluminum wheel
JPS5915732B2 (en) Manufacturing method for road wheel discs
JP3232900B2 (en) Manufacturing method of bulge nipple
JPH0760392A (en) Method for forging parts having arm part
JPS62173040A (en) Manufacture of light alloy forged wheel for vehicle

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040402

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20060615

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060627

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060811

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: 20060905

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060919

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20090929

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20100929

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20100929

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20110929

Year of fee payment: 5

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

Free format text: PAYMENT UNTIL: 20120929

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20130929

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees