JPH11148U - Disposable pants-type wearing article - Google Patents
Disposable pants-type wearing articleInfo
- Publication number
- JPH11148U JPH11148U JP1091498U JP1091498U JPH11148U JP H11148 U JPH11148 U JP H11148U JP 1091498 U JP1091498 U JP 1091498U JP 1091498 U JP1091498 U JP 1091498U JP H11148 U JPH11148 U JP H11148U
- Authority
- JP
- Japan
- Prior art keywords
- joining
- joint
- region
- area
- laminated panel
- 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.)
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Abstract
(57)【要約】
【課題】 使い捨てパンツ型着用物品の前後胴回り域の
両側縁における接合を容易に引き裂いてパンツを脱がせ
易いようにする。
【解決手段】 前後胴回り域10,11の両側縁をその
縦方向に間欠的に配列する接合部14Aで接合してあ
る。
PROBLEM TO BE SOLVED: To easily tear a joint at both side edges of a front and rear waist region of a disposable pants-type wearing article so that the pants can be easily taken off. SOLUTION: Both side edges of front and rear waist regions 10 and 11 are joined at joining portions 14A arranged intermittently in the longitudinal direction.
Description
【0001】[0001]
本考案は、使い捨てパンツ型着用物品に関し、さらに詳しくは、使い捨てパン ツ型着用物品における横方向対向側部を間欠的に接合した使い捨てパンツ型着用 物品に関する。 The present invention relates to a disposable pants-type wearing article, and more particularly, to a disposable pants-type wearing article in which laterally opposite sides of a disposable pants-type wearing article are intermittently joined.
【0002】[0002]
一般に、使い捨て着用物品としてのトレーニングパンツやパンツ型使い捨てお むつは、透液性内面シートと不透液性外面シートからなる積層パネル、特におむ つの場合には、これらの間に吸収体を介在させてなる積層パネルを基本的な構成 とし、着用中の身体に対するフィット性と体液の漏洩防止機能を得るため、該積 層パネルにおける胴回りおよび脚回りの各々に弾性部材が取り付けられている。 また、一般に、こうした物品は、前記積層パネルを前記内面シートが内側に位置 するように二つ折りに重ね、前後胴回り域の対向側部を接合することで、胴開口 部と一対の脚開口部とを形成してある。 Generally, training pants and pants-type disposable diapers as disposable wearing articles are laminated panels consisting of a liquid-permeable inner sheet and a liquid-impermeable outer sheet. The laminated panel thus formed has a basic configuration, and elastic members are attached to the waist circumference and the leg circumference of the laminated panel in order to obtain a fit to the body while wearing and a function of preventing leakage of body fluid. In general, such an article is formed by folding the laminated panel in two so that the inner sheet is located inside, and joining opposite sides of the front and rear waist regions to form a trunk opening and a pair of leg openings. Is formed.
【0003】[0003]
使い捨てのパンツ型着用物品では、前胴回り域と後胴回り域との前記接合は、 胴開口部から脚開口部へ連続した1本又は複数本の接着線によってなされている 。しかるに、こうした物品では、これに着用者から排泄がなされ、これを脱がす とき、これを着用者の足先へ引き下ろしたのでは、排泄物が大便である場合、そ の引き下ろしの過程で、大便が排便時には付着していなかった身体部位にまでも 付着してしまうことが少なくない。こうしたことを避けるには、既に知られてい るように、前記接合した前胴回り域と後胴回り域とが分離するように引き裂いて 脱がすのが好ましい。 In the disposable pants-type wearing article, the joining between the front waistline region and the rear waistline region is performed by one or a plurality of adhesive lines continuous from the trunk opening to the leg opening. However, in such articles, if the excrement is excrement from the wearer, and the excrement is pulled down to the wearer's toe when removing the excrement, if the excrement is stool, the stool is reduced in the process of lowering the excrement. It is not unusual for it to adhere to parts of the body that did not adhere during defecation. In order to avoid such a situation, as already known, it is preferable that the joined front waist region and the rear waist region are torn apart so as to be separated.
【0004】 従来の物品では、前記接合が連続接着線でなしてあることは前述のとおりであ り、そのため前記引き裂き操作が容易ではない。また、そうした連続接着線では 、物品の対向側部が密封状態になり、通気性が得られない。As described above, in a conventional article, the joining is performed by a continuous bonding line, and therefore, the tearing operation is not easy. Further, in such a continuous bonding line, the opposite side portion of the article is in a sealed state, and air permeability cannot be obtained.
【0005】 本考案は、主として、物品の対向側部の引き裂き操作が容易でありながら着用 中に不用意に引き裂かれることがない、その対向側部の接合構成を課題とする。An object of the present invention is to mainly provide a joining configuration of the opposed side portions of the article, which can be easily torn in the opposite side but is not inadvertently torn during wearing.
【0006】[0006]
前記課題を解決するための本考案に係る物品は、少なくとも透液性内面シート と不透液性外面シートとからなる積層パネルを有し、前記内面シートが内側に位 置するように前記積層パネルが折り重ねられ、前記積層パネルの前胴回り域と後 胴回り域の横方向対向側部がそれらの外側縁を残してそれぞれ外向き合掌状に接 合され、胴開口部と脚開口部とにそれぞれ弾性部材を備える使い捨てパンツ型着 用物品を対象とする。 An article according to the present invention for solving the above-mentioned problem has a laminated panel including at least a liquid-permeable inner sheet and a liquid-impermeable outer sheet, and the laminated panel is arranged such that the inner sheet is located inside. Are folded over, and the laterally opposed sides of the front waist region and the rear waist region of the laminated panel are outwardly joined together, leaving their outer edges, respectively, at the trunk opening and the leg opening, respectively. It is intended for disposable pants-type wearing articles provided with elastic members.
【0007】 本考案は、前記対象に係る構成において、前記前後胴回り域の横方向対向側部 の接合が、前記横方向対向側部の縦方向に延在する所定の幅寸法を有する接合域 に沿ってなされていること、および、前記接合域が、前記接合域の縦方向に所定 間隔で配列した多数の接合部によって構成され、前記接合域の幅寸法が2〜20 mm、前記接合部の高さ寸法が0.5〜15mmであり、前記接合部が、前記接 合域の縦方向と交差する方向に長く、かつ、前記接合域の幅寸法よりも小さい高 さ寸法を有することを特徴とする。In the present invention, in the configuration according to the object, the joining of the laterally opposed side portions of the front and rear waist region includes a joining region having a predetermined width dimension extending in a vertical direction of the laterally opposed side portion. And the joining area is constituted by a large number of joining parts arranged at predetermined intervals in the longitudinal direction of the joining area, wherein the width of the joining area is 2 to 20 mm, A height dimension is 0.5 to 15 mm, and the joining portion has a height dimension that is longer in a direction intersecting the longitudinal direction of the joining area and smaller than a width dimension of the joining area. And
【0008】[0008]
図面を参照して、本考案の実施の形態をその一例としての使い捨ておむつにつ いて説明すると、以下のとおりである。 An embodiment of the present invention will be described below with reference to the drawings for a disposable diaper as an example thereof.
【0009】 図1において、おむつ1は、透液性内面シート2と、不透液性外面シート3と 、吸収体4と、胴回り弾性部材5と、脚回り弾性部材6を含んでいる。胴開口部 7と脚開口部8の各々の周縁には、弾性部材5,6の収縮作用によってギャザー が形成される。おむつ1の横方向対向側部9においては、前胴回り域10と後胴 回り域11の各々の側部10A,11Aが接合域14で一体に接合してある。吸 収体4は、本考案を実施するうえにおいて、必ずしも必要なものではない。In FIG. 1, the diaper 1 includes a liquid-permeable inner sheet 2, a liquid-impermeable outer sheet 3, an absorber 4, a waist elastic member 5, and a leg elastic member 6. Gathers are formed at the periphery of each of the trunk opening 7 and the leg opening 8 by the contracting action of the elastic members 5 and 6. In the laterally opposed side portion 9 of the diaper 1, the side portions 10A and 11A of the front waistline region 10 and the rear waistline region 11 are integrally joined at a joint region. The absorber 4 is not always necessary for implementing the present invention.
【0010】 図2において、おむつ1は、内面シート2と、外面シート3と、これらの間に 介在させた吸収体4とによって形成した積層パネル1’から構成してある。内面 シート2は、熱捲縮した熱可塑性繊維からなり、高圧水流の作用下に前記繊維が 交絡した不織布であって弾性伸縮性を有している。吸収体4は、好ましくは、高 吸水性ポリマーを5〜15重量%混入した粉砕パルプの賦型品からなる。外面シ ート3は、2層構造を有し、ポリエチレン系熱可塑性エラストマーからなる弾性 伸縮性に富む不透液性シート16と、熱捲縮した熱可塑性繊維からなり、高圧水 流の作用下に前記繊維が交絡した伸縮性の不織布17とをホットメルト接着剤に よって間欠的に接合してある。不透液性シート16は、吸収体4を介して内面シ ート2と対向し、不織布17は、おむつ1の外表面となる。不透液性シート16 は、もとより外面シート3に不透液性を付与するものである。不織布17は、お むつ1の外表面に布様の肌ざわりを付与する。また、不透液性シート16と不織 布17とを互いに間欠的に接合することで、外面シート3は伸縮性を損うことな く強度が向上する。外面シート3の不透液性シート16上には、複数本の糸ゴム からなる胴回り弾性部材5と、複数本の糸ゴムからなり、かつ、前後部材6A, 6Bからなる脚回り弾性部材6とを、伸長下に、ホットメルト接着剤で接着して ある。前後部材6A,6Bは,股下域15において、互いに交差する交差点間で は殆ど伸長されていない。弾性部材5,6は、おむつ1の連続生産ラインにおい て、流れ方向に沿って連続的に供給されるもので、おむつ1の幅方向を横断して 走り、その両切断端縁は横方向対向側部9(第3図参照)において、外面シート 3の側縁に臨んでいる。In FIG. 2, the diaper 1 includes a laminated panel 1 ′ formed by an inner sheet 2, an outer sheet 3, and an absorber 4 interposed therebetween. The inner sheet 2 is made of a thermo-crimped thermoplastic fiber, is a non-woven fabric in which the fibers are entangled under the action of a high-pressure water flow, and has elasticity and elasticity. The absorber 4 is preferably made of a shaped product of ground pulp containing 5 to 15% by weight of a superabsorbent polymer. The outer sheet 3 has a two-layer structure and is made of a liquid-impervious sheet 16 made of polyethylene thermoplastic elastomer and having high elasticity and elasticity, and a thermo-crimped thermoplastic fiber. Then, the elastic nonwoven fabric 17 in which the fibers are entangled is intermittently joined with a hot melt adhesive. The liquid impermeable sheet 16 faces the inner sheet 2 via the absorber 4, and the nonwoven fabric 17 becomes the outer surface of the diaper 1. The liquid impervious sheet 16 imparts liquid impermeability to the outer sheet 3 as a matter of course. The nonwoven fabric 17 gives the outer surface of the diaper 1 a cloth-like texture. Further, by intermittently joining the liquid impermeable sheet 16 and the nonwoven fabric 17 to each other, the strength of the outer sheet 3 is improved without impairing the elasticity. On the liquid-impermeable sheet 16 of the outer sheet 3, a waist elastic member 5 made of a plurality of thread rubbers, and a leg elastic member 6 made of a plurality of thread rubbers and consisting of front and rear members 6A and 6B are provided. Are bonded with a hot melt adhesive under elongation. The front and rear members 6A and 6B are hardly extended in the crotch region 15 between intersections where they cross each other. The elastic members 5, 6 are continuously supplied along the flow direction in the continuous production line of the diaper 1, and run across the width of the diaper 1, and both cut edges thereof are laterally opposed. The side portion 9 (see FIG. 3) faces the side edge of the outer sheet 3.
【0011】 内面シート2と外面シート3とは、外形が同じであって、吸収体4の外周から 外側へ延出し、その延出部分において互いに接合してある。積層体1’は、縦方 向に二分して、内面シート2が内側となるように折り、前胴回り域10および後 胴回り域11の各々の横方向対向側部10Aと11Aとを重ね合わせ、それら外 側縁を残して位置する接合域14に沿って一体に接合することで、胴開口部7と 、一対の脚開口部8とを形成してある。こうして構成したおむつ1においては、 前胴回り域10側の糸ゴム5と6Aは、後胴回り域側の糸ゴム5と6Bとに各々 がほぼ重なり合って、胴開口部7および脚開口部8の各々において実質的にその 回り方向へ連続している。The inner sheet 2 and the outer sheet 3 have the same outer shape, extend outward from the outer periphery of the absorber 4, and are joined to each other at the extended portions. The laminate 1 ′ is bisected in the vertical direction and folded so that the inner sheet 2 is on the inside, and the laterally opposed sides 10 A and 11 A of the front waistline region 10 and the rear waistline region 11 are overlapped, The body opening 7 and a pair of leg openings 8 are formed by integrally joining along the joining area 14 located leaving the outer side edges. In the diaper 1 thus configured, the thread rubbers 5 and 6A on the front waistline region 10 substantially overlap with the thread rubbers 5 and 6B on the rear waistline region, respectively. Is substantially continuous in the circumferential direction.
【0012】 図3において、接合域14は、側部9の縦方向に胴開口部7から脚開口部8に わたって延在し、超音波溶着によって前後胴回り域10,11の素材が融着した 接合部14Aと、非接合部14Bとの交互の繰り返しによって構成してある。接 合部14Aの各々は、接合域14の縦方向と交差する方向へ長く、おむつ1の横 方向における幅寸法を約5mmとし、各接合部14Aの高さ寸法を約1mmとし 、非接合部14Bの高さ寸法(接合域14の縦方向に互いに隣接対向する各々二 つの接合部14A間の寸法)を約1.5mmとし、こうした接合部14Aと非接 合部14Bとを交互に配列させることによって間欠パターンを構成し、接合域1 4の大部分を形成してあり、図によって明らかなように、脚回り弾性部材6の近 辺においては、接合部14Aを傾斜させてある。さらに、弾性部材5,6は、接 合域14において前記超音波を作用させてない非接合部14Bに位置させてある 。また、接合域14の上端部および/または下端部には、非接合部14Bよりも 比較的大きい非接合部14E,14E’を設けておき、ここを摘持すれば、特に 容易に前胴回り域と後胴回り域とを接合域14に沿って引き裂くことができるよ うにしておくこともできる。In FIG. 3, the joint region 14 extends in the longitudinal direction of the side portion 9 from the trunk opening 7 to the leg opening 8, and the materials of the front and rear waist regions 10 and 11 are fused by ultrasonic welding. It is constituted by alternately repeating the joined portion 14A and the non-joined portion 14B. Each of the joints 14A is long in a direction intersecting the longitudinal direction of the joint area 14, the width of the diaper 1 in the lateral direction is about 5 mm, the height of each joint 14A is about 1 mm, The height dimension of 14B (the dimension between two joining sections 14A which are adjacent to each other in the longitudinal direction of the joining area 14) is about 1.5 mm, and such joining sections 14A and non-joining sections 14B are alternately arranged. Thus, an intermittent pattern is formed, and most of the joint area 14 is formed. As is clear from the figure, the joint portion 14A is inclined near the leg elastic member 6. Further, the elastic members 5 and 6 are located at the non-joining portion 14B where the ultrasonic wave is not applied in the joining region 14. Further, at the upper end and / or lower end of the joining area 14, non-joining parts 14E and 14E ', which are relatively larger than the non-joining part 14B, are provided. The rear waist area and the rear waist area can be torn along the joint area 14.
【0013】 接合部14Aは、前述の寸法を最適例とするが、おむつ1の横方向における長 さ寸法(接合域14の幅寸法)を2〜20mmとし、高さ寸法を0.5〜15m mとし、かつ、胴開口部7から脚開口部8にわたる接合域14において占有面積 の合計を40〜80%とすることができる。接合部14Aの占有面積が40%以 下の場合には接合域14の強度が不足することがあり、80%以上の場合には非 接合部14Bを介して所要の通気性が得られないことがある。The joint section 14A has the above-described dimensions as an optimal example, but the length of the diaper 1 in the lateral direction (the width of the joint area 14) is 2 to 20 mm, and the height is 0.5 to 15 m. m, and the total occupied area in the joint area 14 extending from the trunk opening 7 to the leg opening 8 can be 40 to 80%. If the occupied area of the joint 14A is less than 40%, the strength of the joint area 14 may be insufficient, and if it is more than 80%, the required air permeability cannot be obtained through the non-joint 14B. There is.
【0014】 パンツ型おむつ1を着用者から脱がせる場合には、側部9の外縁において、前 胴回り域10と後胴回り域11とを各々摘持してそれらが対向する前後方向に引 っ張ると、接合域14に沿って容易に引き裂くことができる。しかも、このとき の引き裂きの抵抗感は接合域14の少なくとも幅寸法と同じ長さ寸法を有する接 合部14Aが接合域14の縦方向と交差し、それらの間に非接合部14Bが位置 するという断続パターンによって、あたかもジッパーを操作するような感触にな り、仮に、接合域14の上端または下端において引き裂きが生じたとしても、そ の引き裂き力が連続的に伝達されることが極めて少ない。When the pants-type diaper 1 is to be removed from the wearer, the front waistline region 10 and the rear waistline region 11 are pinched at the outer edge of the side portion 9 and pulled in the front-rear direction facing each other. , Can easily be torn along the joint area 14. In addition, the sense of resistance to tearing at this time is such that the joining portion 14A having at least the same length as the width of the joining region 14 intersects the longitudinal direction of the joining region 14, and the non-joining portion 14B is located therebetween. With such an intermittent pattern, it feels as if a zipper is operated, and even if a tear occurs at the upper end or the lower end of the joint area 14, the tear force is very rarely continuously transmitted.
【0015】 図4において、前胴回り域10と後胴回り域11の各々の摘持を容易にするた め、各々の側部10A,11Aの上端部に該側部から外方に延出する摘持部20 A,20Bを設けてある。摘持部20A,20Bは、内面シート2および/また は外面シート3と一体をなすように設けることができるが、これを別部材として 設けることもできる。In FIG. 4, in order to facilitate holding each of the front waistline region 10 and the rear waistline region 11, a pin extending outward from the upper end of each of the side portions 10A, 11A. Holders 20A and 20B are provided. The holding portions 20A, 20B can be provided so as to be integral with the inner sheet 2 and / or the outer sheet 3, but they can also be provided as separate members.
【0016】 図5において、内面シート2を前記実施例と同様に熱捲縮した熱可塑性繊維か らなり、高圧水流の作用下に前記繊維が交絡した不織布である弾性伸縮性シート により構成し、外面シート3を図示のポリエチレン系熱可塑性エラストマーから なる弾性伸縮性の不透液性シート16による単一層で構成してある。このように 構成することで、前記実施例における場合のそれよりも製造コストを下げること ができる。In FIG. 5, the inner sheet 2 is made of an elastic stretch sheet which is a nonwoven fabric made of thermoplastic fibers which are heat-crimped in the same manner as in the above-described embodiment and which are entangled with the fibers under the action of a high-pressure water flow. The outer sheet 3 is constituted by a single layer of an elastically stretchable liquid-impermeable sheet 16 made of a polyethylene thermoplastic elastomer as shown. With this configuration, the manufacturing cost can be lower than that in the above-described embodiment.
【0017】[0017]
本考案に係る物品によれば、次の効果を奏する。 The article according to the present invention has the following effects.
【0018】 着用させた物品を脱がせるとき、前後胴回り域の横方向対向側部の少なくとも 一方を互いに離れる方向に引っ張ることで、それらを接合域に沿って容易に引き 裂くことができ、その脱がせ操作もまた容易であるとともに、接合域を構成する 多数の接合部が、接合域の縦方向と交差する方向へ延びるから、すなわち、少な くとも接合域の幅寸法と同じ寸法で該域の縦方向と交差する長さを有するから、 接合域には、所要の接合強度ないし引き裂き抵抗が付与され、着用中に不用意に 連続的に引き裂かれて着用した物品が身体からずれ落ちることがない。When detaching the worn articles, at least one of the laterally opposed side portions of the front and rear waist regions can be pulled apart in a direction away from each other, so that they can be easily torn along the joint region. This is also easy, and because the large number of joints that make up the joint area extend in a direction that intersects the longitudinal direction of the joint area, i.e., at least as long as the width of the joint area, The joint area has the required joint strength or tear resistance, so that the worn article does not slip off from the body by being inadvertently continuously torn during wearing.
【図1】本考案に係るおむつの斜視図。FIG. 1 is a perspective view of a diaper according to the present invention.
【図2】図1のおむつの展開斜視図。FIG. 2 is an exploded perspective view of the diaper of FIG.
【図3】図1のおむつの部分拡大図。FIG. 3 is a partially enlarged view of the diaper of FIG. 1;
【図4】本考案の他の実施例を示す部分拡大斜視図。FIG. 4 is a partially enlarged perspective view showing another embodiment of the present invention.
【図5】外面シートについての他の実施例を示す外面シ
ートの斜視図。FIG. 5 is a perspective view of an outer sheet showing another embodiment of the outer sheet.
1 おむつ 2 内面シート 3 外面シート 4 吸収体、 5,6 弾性部材 9 横方向対向側部 10 前胴回り域 11 後胴回り域 14 接合域 14A 接合部 14B 非接合部 DESCRIPTION OF SYMBOLS 1 Diaper 2 Inner sheet 3 Outer sheet 4 Absorber, 5, 6 Elastic member 9 Lateral facing side part 10 Front waist area 11 Rear waist area 14 Joint area 14A Joint part 14B Non-joint part
Claims (2)
面シートとからなる積層パネルを有し、前記内面シート
が内側に位置するように前記積層パネルが折り重ねら
れ、前記積層パネルの前胴回り域と後胴回り域の横方向
対向側部がそれらの外側縁を残してそれぞれ外向き合掌
状に接合され、胴開口部と脚開口部とにそれぞれ弾性部
材を備える使い捨てパンツ型着用物品において、 前記前後胴回り域の横方向対向側部の接合が、前記横方
向対向側部の縦方向に延在する所定の幅寸法を有する接
合域に沿ってなされ、 前記接合域が、前記接合域の縦方向に所定間隔で配列し
た多数の接合部によって構成され、前記接合域の幅寸法
が2〜20mm、前記接合部の高さ寸法が0.5〜15
mmであり、前記接合部が、前記接合域の縦方向と交差
する方向に長く、かつ、前記接合域の幅寸法よりも小さ
い高さ寸法を有することを特徴とする前記物品。1. A laminated panel comprising at least a liquid-permeable inner sheet and a liquid-impermeable outer sheet, wherein the laminated panel is folded so that the inner sheet is located on the inner side, and the laminated panel is positioned in front of the laminated panel. In a disposable pants-type wearing article in which the laterally opposed side portions of the waist region and the rear waist region are joined outwardly toward each other leaving their outer edges, and the torso opening and the leg opening each have an elastic member, The joining of the laterally opposing side portions of the front and rear waist region is performed along a joining region having a predetermined width extending in the longitudinal direction of the laterally opposing side portion, and the joining region is formed in a vertical direction of the joining region. The width of the bonding area is 2 to 20 mm, and the height of the bonding area is 0.5 to 15
mm, wherein the joint is longer in a direction intersecting the longitudinal direction of the joint area and has a height dimension smaller than a width dimension of the joint area.
記接合部の占有面積の合計が40〜80%である請求項
1に記載の物品。2. The article according to claim 1, wherein a total area occupied by the joints from the trunk opening to the leg openings is 40 to 80%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1998010914U JP2606778Y2 (en) | 1990-04-26 | 1998-12-07 | Disposable pants-type wearing article |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2-44847 | 1990-04-26 | ||
JP4484790 | 1990-04-26 | ||
JP1998010914U JP2606778Y2 (en) | 1990-04-26 | 1998-12-07 | Disposable pants-type wearing article |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11148U true JPH11148U (en) | 1999-11-30 |
JP2606778Y2 JP2606778Y2 (en) | 2001-01-09 |
Family
ID=26346280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1998010914U Expired - Lifetime JP2606778Y2 (en) | 1990-04-26 | 1998-12-07 | Disposable pants-type wearing article |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2606778Y2 (en) |
-
1998
- 1998-12-07 JP JP1998010914U patent/JP2606778Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2606778Y2 (en) | 2001-01-09 |
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