JP3627924B2 - Trim cover manufacturing method for vehicle seat - Google Patents

Trim cover manufacturing method for vehicle seat Download PDF

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Publication number
JP3627924B2
JP3627924B2 JP2001262800A JP2001262800A JP3627924B2 JP 3627924 B2 JP3627924 B2 JP 3627924B2 JP 2001262800 A JP2001262800 A JP 2001262800A JP 2001262800 A JP2001262800 A JP 2001262800A JP 3627924 B2 JP3627924 B2 JP 3627924B2
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Japan
Prior art keywords
skin
trim cover
decorative groove
lower mold
base fabric
Prior art date
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Expired - Fee Related
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JP2001262800A
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Japanese (ja)
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JP2003071164A (en
Inventor
博行 牧野
勉 加藤
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Tachi S Co Ltd
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Tachi S Co Ltd
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Priority to JP2001262800A priority Critical patent/JP3627924B2/en
Publication of JP2003071164A publication Critical patent/JP2003071164A/en
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Description

【0001】
【発明の属する技術分野】
本発明は自動車用シートなどの車両用座席に使用するトリムカバーの製造方法、詳しくは、表面に巾が狭く、且つ深い装飾溝を有するトリムカバーの製造方法に関する。
【0002】
【従来の技術】
車両用シートの外観品質を向上させるために、シートの外表面を形成するトリムカバーに、装飾溝を形成したものがある。
【0003】
そして、トリムカバーは一般的に、表皮、発泡体製のワディング、裏基布の三者の積層体から構成して、着座者に対する感触を良好にしている。
【0004】
このトリムカバーの表面側に設けた前記装飾溝は前記三者を一体に縫着、高周波溶着して形成したり、或いは、前記ワディングにあらかじめ凹溝を形成してこの凹溝に表皮を喰い込ませて縫着、溶着する…などの方法によって形成している。
【0005】
【発明が解決しようとする課題】
以上の方法によって例えば平面曲線状、或いは略コ字状の装飾溝を形成するものは、くっきりした溝を形成できない不具合があった。
【0006】
斯る不具合は本願出願人の出願に係る特許第2811223号公報に開示する方法で解消できる。
しかし、この方法によれば、例えば天然皮革、人口皮革などの一定の剛性を有する表皮を使用すると、下型の内面に沿って表皮全体が密着できず、くっきりした装飾溝が形成できない。
【0007】
そこで、本発明は、天然皮革、人口皮革などの織物地などに対して剛性、弾性を有する表皮を有するトリムカバーにおいて、くっきりした装飾溝を形成できるようにすることを目的とする。
【0008】
【課題を解決するための手段】
以上の目的を達成するための本発明に係る車両用シートのトリムカバー製造方法は、装飾溝を形成する突条によって収容部を仕切ると共に該突条によって仕切られた各小収容部の底部に真空吸引装置に連結する吸気孔を設けた下型を使用し、該下型に表皮を被せて前記真空吸引装置によって表皮を前記各小収容部内に密着させ、表皮を真空吸引中又は真空吸引後、表皮を各小収容部内においてプレスで加圧し、次に、前記密着状態を前記真空吸引装置によって保持した状態で、各小収容部内にブロック状のワディングを収容し、然る後、このワディングの外面に裏基布を接着剤で接着して、表面に装飾溝を有するトリムカバーを製造することを特徴とするものである。
【0009】
以上の構成により、剛性を有する表皮であっても下型の各小収容部内に吸引力で密着され、その密着状態が保持されるため、トリムカバーの表面側にくっきりした装飾溝が形成される。
【0010】
また、前記表皮を真空吸引中又は真空吸引後、表皮を各小収容部内においてプレスで加圧することにより、更に、表皮の下型内に対する密着状態が良好になるため、くっきりした装飾溝が形成される。
【0011】
更に、前記裏基布を接着後、表皮側に形成された前記装飾溝における底部の隅部に沿って、表皮と裏基布を一体に縫着することにより、表皮と裏基布とが一体になり、しかも、溝の底部形状を保持できるため、くっきりした装飾溝がシートの長期使用によって変形することがない。
【0012】
【発明の実施の形態】
以下、本発明の実施の一形態を図面に基づいて説明する。
図6は本発明方法によって製造したトリムカバーの使用状態を示し、シートバック(SB)の前面側に上下三段状に平面略コ字状の装飾溝(S)(S)(S)がくっきりと形成されている。
【0013】
この装飾溝(S)(S)(S)を身頃部に有するトリムカバーは、図7に示すように構成されている。図中(3)は天然皮革、又は人口皮革からなる非通気性の表皮、(4B)(4C)はウレタンフォームなど発泡体製のブロック体からなるワディング、(5)は不織布などの裏基布で、この裏基布(5)は接着剤(6)によってワディング(4B)(4C)と、ワディング(4B)(4C)間に有する表皮(3)の一部とに接着され、装飾溝(S)内における底部左右の隅部に沿って表皮(3)が縫糸(71)(71)によつて裏基布(5)に縫着されている。
【0014】
このトリムカバーは図1乃至図4に示す順序で製造される。
即ち、図5に示す下型(1)を使用し、この下型(1)は、前記トリムカバーの身頃部用のものであり、身頃部と略同一の大きさの収容部(イ)が凹窪状に形成され、この収容部(イ)内には前記装飾溝(S)を形成する突条(10)(10)(10)が起立状に突設され、収容部(イ)は、各突条(10)…によって仕切られ、多数の小収容部(1A)(1B)(1C)(1D)に形成されている。
【0015】
そして、各小収容部(1A)…の底部には多数の吸気孔(11)…が開孔され、この各吸気孔(11)…は図1乃至図4に示すように空気室(11A)、吸気孔(11B)を介して従来周知の真空吸引装置(不図示)に連結されている。
【0016】
なお、前記吸気孔(11)は底部の他に各小収容部(1A)…の内側壁、或いは各突条(10)…内に設けたものを使用しても良い。
また、以上の各突条(10)…の高さは、下型(1)の上面(12)と略同一の高さ、或いはやや低い程度に形成されている。
【0017】
まず、図1に示すように、前記下型(1)上に、身頃部を構成する一枚状の表皮(3)をセツトする。
そして、真空吸引装置を作動させると、表皮(3)が吸引されて各突条(10)の外面及び各小収容部(1A)…の底面に各々沿って密着する。
【0018】
この密着が不充分な場合には、更に、上型(2)を下降させて表皮(3)を下型(1)にプレスして下型(1)に密着させる。その際に、表皮(3)の押圧状態を良好にするために、上型(2)の周囲に設けた押圧片(20)で、表皮(3)の周囲を押圧して固定する。押圧片(20)は上片(2)に設けた取付片(22)(22)にばね(21)によって取付けられ、上型(2)で表皮(3)を押圧する前に、表皮(3)の周囲を固定するように形成されている。
【0019】
次に、前記表皮(3)を真空吸引装置での吸引状態を継続させながら、小収容部(1A)…毎にブロック状の発泡体製ワディング(4B)…を収容する。なお、各ワディング(4B)(4A)…は小収容部(1A)の平面形状と略同一の大きさで、小収容部(1A)の深さと略同一の厚みに成形されている。
【0020】
然る後、図2、図3に示すように、下型(2)に収容した各ワディング(4A)(4B)…と、各ワディング(4A)…間から外部に露出する部分の表皮(3)に接着剤(6)を塗布する。
【0021】
次に、裏基布(5)を被せて接着剤(6)で、ワディング(4A)…と、ワディング(4A)…間から外部に露出する部分の表皮(3)に接着する。この裏基布(5)の接着は裏基布(5)を軽く押し付けることにより接着する。
【0022】
この接着によって前記トリムカバーの身頃部が形成され、この身頃部に額縁部、まち部等を接ぎ合わせることにより袋状のトリムカバーが形成される。
【0023】
以上の如く方法でトリムカバーの身頃部を製造すると、図6に示すように、略コ字状の装飾溝(S)(S)(S)が多段状に形成でき、各装飾溝(S)の長さ方向の両端側に設けた折曲部が鋭角状にくっきりと形成される。
【0024】
なお、図7に示すトリムカバーの身頃部は、前記裏基布を接着して脱型し、縫糸(71)(71)で表皮(3)と裏基布(5)とを縫着したものであるが、必ずしも、縫糸(71)(71)で縫着せずとも、くっきりした装飾溝(S)が形成できる。
【0025】
【発明の効果】
本請求項1の発明によれば、下型内に表皮を密着状態を保持し乍ら、ワディングを収容し、裏基布を接着するため、天然皮革、人口皮革などの剛性、又は弾性を有する表皮を使用してもくっきりした装飾溝を有するトリムカバーが形成できる。
【0026】
また、表皮がプレスによって下型内に密着できるため、更に、平面曲線状、或いは略コ字状などの折曲部を有する装飾溝において、そのコーナー部等が鋭角状に形成できる。
【0027】
本請求項の発明によれば、装飾溝内において、表皮と裏基布とを一体に縫着しているため、くっきりした装飾溝がシートの長期使用によって変形等することがない。
【図面の簡単な説明】
【図1】本発明方法において、表皮を下型にセットした状態の断面図である。
【図2】図1の状態から表皮を下型に密着状態においてワディングを収容して接着剤を塗布した状態の断面図である。
【図3】図2のIIIーIII線断面図である。
【図4】下型でトリムカバーを製造した状態の断面図である。
【図5】本発明に使用する下型の斜視図である。
【図6】本発明方法によって製造したトリムカバーの使用状態斜視図である。
【図7】本発明方法によって製造したトリムカバーの部分断面図である。
【符号の説明】
1 下型
1A 小収容部
1B 小収容部
1C 小収容部
1D 小収容部
イ 収容部
3 表皮
4A ワディング
4B ワディング
4C ワディング
4D ワディング
5 裏基布
6 接着剤
10 突条
11 吸気孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a trim cover used for a vehicle seat such as an automobile seat, and more particularly to a method for manufacturing a trim cover having a narrow surface and a deep decorative groove.
[0002]
[Prior art]
In order to improve the appearance quality of a vehicle seat, a trim cover that forms the outer surface of the seat has a decorative groove.
[0003]
The trim cover is generally composed of a laminate of a skin, a foam wadding, and a back base fabric to provide a good feeling for the seated person.
[0004]
The decorative groove provided on the surface side of the trim cover is formed by sewing the three members together and welding at a high frequency, or by forming a groove in advance in the wadding and biting the skin into the groove. It is formed by methods such as sewing and welding.
[0005]
[Problems to be solved by the invention]
For example, those which form a planar curved or substantially U-shaped decorative groove by the above method have a problem that a sharp groove cannot be formed.
[0006]
Such an inconvenience can be solved by the method disclosed in Japanese Patent No. 2811223 according to the application of the present applicant.
However, according to this method, when a skin having a certain rigidity, such as natural leather or artificial leather, is used, the entire skin cannot be adhered along the inner surface of the lower mold, and a clear decorative groove cannot be formed.
[0007]
Therefore, an object of the present invention is to make it possible to form a clear decorative groove in a trim cover having a skin having rigidity and elasticity with respect to a woven fabric such as natural leather or artificial leather.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a vehicle seat trim cover manufacturing method according to the present invention divides an accommodating portion by a ridge forming a decorative groove, and vacuums the bottom of each small accommodating portion partitioned by the ridge. Using a lower mold provided with an intake hole connected to a suction device, covering the lower mold with a skin, and making the skin adhere to each small housing portion by the vacuum suction device, and during or after vacuum suction of the skin, pressurized with a press at intraepidermal each holding portion, then the contact state while held by the vacuum suction device, to accommodate the block-shaped wadding in each small receptacle, thereafter, the outer surface of the wadding A trim cover having a decorative groove on its surface is manufactured by adhering the back base fabric to the substrate with an adhesive.
[0009]
With the above configuration, even if it is a rigid skin, it is brought into close contact with each lower housing portion by a suction force, and the close contact state is maintained, so a clear decorative groove is formed on the surface side of the trim cover. .
[0010]
In addition, during or after vacuum suction of the epidermis, pressurizing the epidermis with a press in each small housing portion further improves the close contact state with the lower mold of the epidermis, so that a clear decorative groove is formed. The
[0011]
Further, after the back base fabric is bonded, the skin and the back base fabric are sewn together along the corners of the bottom of the decorative groove formed on the skin side so that the skin and the back base fabric are integrated. In addition, since the bottom shape of the groove can be maintained, the clear decorative groove is not deformed by long-term use of the sheet.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 6 shows a use state of the trim cover manufactured by the method of the present invention, and the decorative grooves (S), (S), and (S) that are substantially U-shaped in a planar three-step shape on the front side of the seat back (SB) are clear. It is formed.
[0013]
The trim cover having the decorative groove (S) (S) (S) in the body part is configured as shown in FIG. In the figure, (3) is a non-breathable skin made of natural leather or artificial leather, (4B) and (4C) are waddings made of a foam block such as urethane foam, and (5) is a backing fabric such as nonwoven fabric. The back base fabric (5) is adhered to the wadding (4B) (4C) and a part of the skin (3) between the wadding (4B) (4C) by the adhesive (6), and the decorative groove ( The outer skin (3) is sewn to the back base fabric (5) with sewing threads (71) (71) along the left and right corners of the bottom in S).
[0014]
The trim cover is manufactured in the order shown in FIGS.
That is, the lower mold (1) shown in FIG. 5 is used. The lower mold (1) is for the body part of the trim cover, and the housing part (I) having the same size as the body part is used. In this accommodating portion (a), the ridges (10), (10) and (10) forming the decorative groove (S) are projected in an upright manner, and the accommodating portion (a) Are partitioned by the respective protrusions (10), and are formed in a large number of small accommodating portions (1A) (1B) (1C) (1D).
[0015]
A large number of intake holes (11) are opened at the bottom of each small accommodating portion (1A), and each of the intake holes (11) is formed in an air chamber (11A) as shown in FIGS. The vacuum suction device (not shown) is connected via a suction hole (11B).
[0016]
In addition to the bottom, the intake hole (11) may be provided in the inner wall of each small accommodating portion (1A), or in each ridge (10).
Moreover, the height of each above-mentioned protrusion (10) ... is formed in the grade substantially the same as the upper surface (12) of a lower mold | type (1), or a little lower grade.
[0017]
First, as shown in FIG. 1, a sheet-like skin (3) constituting the body part is set on the lower mold (1).
When the vacuum suction device is operated, the skin (3) is sucked and brought into close contact with the outer surface of each protrusion (10) and the bottom surface of each small accommodating portion (1A).
[0018]
When this adhesion is insufficient, the upper mold (2) is further lowered and the skin (3) is pressed on the lower mold (1) to be adhered to the lower mold (1). At that time, in order to improve the pressing state of the skin (3), the periphery of the skin (3) is pressed and fixed with the pressing pieces (20) provided around the upper mold (2). The pressing piece (20) is attached to mounting pieces (22) and (22) provided on the upper piece (2) by a spring (21), and before pressing the outer skin (3) with the upper mold (2), the outer skin (3 ) Is fixed to the periphery.
[0019]
Next, the block-like foam wadding (4B) is accommodated for each small accommodating portion (1A) while the skin (3) is kept sucked by the vacuum suction device. Each of the waddings (4B), (4A)... Has a size substantially the same as the planar shape of the small accommodating portion (1A) and is formed to have a thickness substantially the same as the depth of the small accommodating portion (1A).
[0020]
Thereafter, as shown in FIGS. 2 and 3, each of the waddings (4A) (4B)... Accommodated in the lower mold (2), and the outer skin (3 ) Adhesive (6) is applied.
[0021]
Next, the back base fabric (5) is put on, and the adhesive (6) is used to bond the padding (4A) to the skin (3) of the portion exposed to the outside from between the padding (4A). The back base fabric (5) is adhered by lightly pressing the back base fabric (5).
[0022]
A body part of the trim cover is formed by this adhesion, and a bag-like trim cover is formed by joining a frame part, a town part and the like to the body part.
[0023]
When the body part of the trim cover is manufactured by the method as described above, as shown in FIG. 6, the substantially U-shaped decorative grooves (S), (S), and (S) can be formed in multiple stages, and each decorative groove (S) is formed. The bent portions provided on both end sides in the length direction are clearly formed in an acute angle shape.
[0024]
The body part of the trim cover shown in FIG. 7 is formed by bonding the back base fabric and removing the mold, and sewing the outer skin (3) and the back base fabric (5) with the sewing threads (71) (71). However, a clear decorative groove (S) can be formed without necessarily sewing with the sewing threads (71) (71).
[0025]
【The invention's effect】
According to the first aspect of the present invention, the skin is kept in close contact with the lower mold, and the padding is accommodated and the back base fabric is bonded. Therefore, the leather has rigidity or elasticity such as natural leather and artificial leather. Even if the skin is used, a trim cover having a clear decorative groove can be formed.
[0026]
Further, since the skin can be brought into close contact with the lower mold by pressing, the corners and the like can be formed in an acute angle in the decorative groove having a bent portion such as a plane curve shape or a substantially U-shape.
[0027]
According to the second aspect of the invention, since the skin and the back base fabric are integrally sewn in the decorative groove, the clear decorative groove will not be deformed or the like due to long-term use of the sheet.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state where an epidermis is set in a lower mold in the method of the present invention.
2 is a cross-sectional view of the state in which the wadding is accommodated and an adhesive is applied in a state where the epidermis is in close contact with the lower mold from the state of FIG. 1;
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is a cross-sectional view of a state where a trim cover is manufactured with a lower mold.
FIG. 5 is a perspective view of a lower mold used in the present invention.
FIG. 6 is a perspective view of a trim cover manufactured by the method of the present invention in use.
FIG. 7 is a partial cross-sectional view of a trim cover manufactured by the method of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower mold | type 1A Small accommodating part 1B Small accommodating part 1C Small accommodating part 1D Small accommodating part A Accommodating part 3 Skin 4A Wadding 4B Wading 4C Wadding 4D Wadding 5 Back base cloth 6 Adhesive 10 Projection 11 Inlet hole

Claims (2)

装飾溝を形成する突条によって収容部を仕切ると共に該突条によって仕切られた各小収容部の底部に真空吸引装置に連結する吸気孔を設けた下型を使用し、該下型に表皮を被せて前記真空吸引装置によって表皮を前記各小収容部内に密着させ、表皮を真空吸引中又は真空吸引後、表皮を各小収容部内においてプレスで加圧し、次に、前記密着状態を前記真空吸引装置によって保持した状態で、各小収容部内にブロック状のワディングを収容し、然る後、このワディングの外面に裏基布を接着剤で接着して、表面に装飾溝を有するトリムカバーを製造することを特徴とする車両用シートのトリムカバー製造方法。Using a lower mold in which the housing portion is partitioned by a ridge that forms a decorative groove, and an intake hole that is connected to a vacuum suction device is provided at the bottom of each small housing portion partitioned by the ridge, and the skin is attached to the lower mold. Cover the skin with each vacuum chamber by using the vacuum suction device , and pressurize the skin with a press in the vacuum chamber during or after vacuum suction. A block-shaped wadding is accommodated in each small accommodating portion while being held by the apparatus, and then a backing cover is adhered to the outer surface of the wadding with an adhesive to produce a trim cover having a decorative groove on the surface. A method for manufacturing a trim cover for a vehicle seat. 前記裏基布を接着後、表皮側に形成された前記装飾溝における底部の隅部に沿って、表皮と裏基布を一体に縫着してなる請求項1記載の車両用シートのトリムカバー製造方法。The trim cover for a vehicle seat according to claim 1, wherein after the back base fabric is bonded, the skin and the back base fabric are sewn together along the corners of the bottom of the decorative groove formed on the skin side. Production method.
JP2001262800A 2001-08-31 2001-08-31 Trim cover manufacturing method for vehicle seat Expired - Fee Related JP3627924B2 (en)

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Application Number Priority Date Filing Date Title
JP2001262800A JP3627924B2 (en) 2001-08-31 2001-08-31 Trim cover manufacturing method for vehicle seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001262800A JP3627924B2 (en) 2001-08-31 2001-08-31 Trim cover manufacturing method for vehicle seat

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JP2003071164A JP2003071164A (en) 2003-03-11
JP3627924B2 true JP3627924B2 (en) 2005-03-09

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