JP3870381B2 - Manhole cover handle hole cover device - Google Patents

Manhole cover handle hole cover device Download PDF

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JP3870381B2
JP3870381B2 JP2004343753A JP2004343753A JP3870381B2 JP 3870381 B2 JP3870381 B2 JP 3870381B2 JP 2004343753 A JP2004343753 A JP 2004343753A JP 2004343753 A JP2004343753 A JP 2004343753A JP 3870381 B2 JP3870381 B2 JP 3870381B2
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handle hole
hole
cap
manhole cover
plate
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JP2006152648A (en
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修 小山
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Takigen Manufacturing Co Ltd
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Takigen Manufacturing Co Ltd
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Description

本発明は、マンホール蓋を開閉するための把手孔を閉塞するマンホール蓋の把手孔用カバー装置に関する。 The present invention relates to a cover device for a handle hole of a manhole cover that closes a handle hole for opening and closing the manhole cover.

マンホール蓋は、通常、安全上・保安上等の理由から作業者以外は容易に開くことができないように、マンホール上面側に設けた把手孔にカバー装置を装着している。マンホール蓋を開く場合には、前記カバー装置を最初に取除き、その後、把手孔に差し込んだバール等の器具によってマンホールを持ち上げるようにしてマンホールを開いている。 The manhole cover is usually fitted with a cover device in a handle hole provided on the upper surface of the manhole so that only a worker can easily open it for reasons such as safety and security. When the manhole cover is opened, the cover device is first removed, and then the manhole is opened by lifting the manhole with an instrument such as a bar inserted into the handle hole.

把手孔を閉塞するカバー装置としては、把手孔となる通孔に対してその上面を被着する円板状のストッパー材と、拡張体を設け、この間に通孔内に遊挿する筒状の弾性体を介在させ、この状態でストッパー材、弾性体、拡張体に螺子桿を嵌挿し、螺子桿の下部にナットを螺合させ一体化させたものがあり、通孔を閉塞する場合には、ストッパー材を締付けることによって弾性体が押し広げられ、通孔を閉塞して全体を固定するようにしている（特許文献１参照）。 As a cover device that closes the handle hole, a cylindrical stopper material that is attached to the upper surface of the through hole that becomes the handle hole and an expansion body, and is inserted into the through hole in between is provided with a cylindrical shape. When an elastic body is interposed, a screw rod is inserted into the stopper material, elastic body, and expansion body in this state, and a nut is screwed into the lower portion of the screw rod to integrate them. By tightening the stopper material, the elastic body is pushed and spread, and the through hole is closed to fix the whole (see Patent Document 1).

別のカバー装置としては、マンホール蓋上面に設けた位置決め用凹部に嵌合する位置決め用突起を裏面側に設けた円盤部と、円筒状の外周面部を設けた下部を有する本体と、本体に嵌挿される下部側に雄螺子を設けた主軸とマンホール蓋に接離して固定するための固定用爪を張り出し成形して主軸の雄螺子に螺合する締付けナットからなるものがあり、把手孔となる鍵穴を閉塞する場合は、位置決め用突起をマンホール蓋の凹部に嵌合させるようにして本体下部をマンホール蓋の鍵穴に嵌挿し、主軸を回転させることで固定用爪が回転し、この固定用爪が鍵穴の下面側孔縁部に係合した状態で更に主軸を回転させることで締付け可能となり、全体を固定して鍵孔を塞いでいる（特許文献２）。 As another cover device, there are a disk portion provided with a positioning projection on the back surface side to be fitted in a positioning recess provided on the upper surface of the manhole cover, a main body having a lower portion provided with a cylindrical outer peripheral surface portion, and a main body. There is a clamp hole that has a male screw on the lower side to be inserted and a clamping nut that extends and molds a fixing claw to fix it in contact with and separate from the manhole cover. When closing the key hole, the positioning protrusion is fitted into the recess of the manhole cover, the lower part of the main body is inserted into the key hole of the manhole cover, and the fixing claw is rotated by rotating the main shaft. Can be tightened by further rotating the main shaft in a state of engaging with the lower surface side hole edge of the key hole, and the whole is fixed and the key hole is closed (Patent Document 2).

更に別のカバー装置としては、上面側に締付け用の締付け穴を有するボルトと、このボルトの頭部を挿着する挿着穴を有しマンホール蓋の把手孔を閉塞する円板状の円板部を有するキャップと、ボルトを挿入するための貫通孔とボルトの雄ねじを螺着するための雌ねじを有し、把手孔内を回転したときに把手孔に係止する係止部とマンホール蓋の下面側に当接可能な当接面を有し上方への抜止めをするように設けた回転体とからなり、把手孔に係止部を係止した状態でボルトを回転したときに回転体がボルトに沿って上下の何れか一方に移動するように設けたものがある（特許文献３参照）。 As another cover device, a disk having a tightening hole on the upper surface side and a disk-shaped disk having an insertion hole for inserting the head of the bolt and closing the handle hole of the manhole cover A cap having a portion, a through hole for inserting a bolt and a female screw for screwing a male screw of the bolt, and a locking portion for locking to the handle hole when rotating in the handle hole and the manhole cover A rotating body that has a contact surface that can be contacted to the lower surface side and is provided so as to prevent upward pulling, and the rotating body when the bolt is rotated with the locking portion locked in the handle hole. Is provided so as to move either up or down along the bolt (see Patent Document 3).

しかしながら、特許文献１に開示されたマンホール蓋の通孔閉塞装置では、締付け力が加わる部分がゴム等の弾性に富んだ材料で成形された弾性体であるため劣化しやすく、磨耗などによって徐々にその弾性力が失われるなど、耐久性の面で問題があった。また、通孔に対して確実に弾性体を取付けるためには、締付けを行なう治具を操作するときに弾性体が通孔内に強く弾接するまで強く締付けなければその効果を発揮できず、弾性体の劣化がより激しくなると共に、治具の締付け程度が分かりづらく、締付け加減が難しくなるなどの操作性にも問題が生じる場合があった。 However, in the through hole closing device for a manhole cover disclosed in Patent Document 1, the portion to which a tightening force is applied is an elastic body formed of a material rich in elasticity such as rubber, so that it easily deteriorates and gradually increases due to wear or the like. There was a problem in terms of durability, such as loss of the elastic force. Also, in order to securely attach the elastic body to the through hole, when operating the jig for tightening, the effect cannot be exerted unless the elastic body is firmly tightened until it elastically contacts the through hole. In addition to the more severe deterioration of the body, the degree of tightening of the jig is difficult to understand, and there are cases where problems arise in operability such as difficulty in tightening.

特許文献２に開示されたマンホール蓋の鍵孔用盲栓装置は、汚泥等が蓋側の位置決め用凹部に入り込んだりすると、円盤部をマンホール蓋の陥没部に嵌め込もうとしたときに円盤部側の位置決め用突起がこの位置決め用凹部に確実に嵌まらないことがあり、締付け作業が難しくなる場合があった。従って、マンホール蓋の位置決め部分の取付け具合によっては締付け作業の確実性に欠けることがあり、また、凸部を凹部に嵌め込んだ状態にしてから締付け作業を行なう必要があるため、その分手間がかかることがあった。 In the keyhole blind plug device disclosed in Patent Document 2, when the sludge or the like enters the positioning recess on the lid side, the disk portion is used when the disk portion is to be fitted into the recessed portion of the manhole cover. The positioning protrusion on the side may not be securely fitted into the positioning recess, and tightening work may be difficult. Therefore, depending on how the manhole cover positioning part is attached, the reliability of the tightening work may be lacking, and it is necessary to perform the tightening work after the convex part is fitted in the concave part. Sometimes this happened.

特許文献３に開示されたマンホール蓋の把手孔のカバー装置は、耐久性と締付け時の操作性において一定の改善が見られるものであるが、全体として構成部品点数が多いため製作組立のコストが割高なものとなっている。 Although the cover device for the handle hole of the manhole cover disclosed in Patent Document 3 has a certain improvement in durability and operability at the time of tightening, since the number of components is large as a whole, the manufacturing and assembly cost is high. It is expensive.

実公平７−１６７６８号公報Japanese Utility Model Publication No. 7-16768 特許第２８８９２０３号公報Japanese Patent No. 2889203 特開２００３-２３９３０９号公報JP 2003-239309 A

本発明の課題は、必要十分な施錠機能を備えていながら、全体の構成部品点数を極限まで減らして製作組立のコストを節減することができ、操作の簡便性にも優れたマンホール蓋の把手孔用カバー装置を提供することである。 An object of the present invention is to provide a manhole cover handle hole that has a necessary and sufficient locking function, but can reduce the total number of components to the limit, thereby reducing the cost of manufacturing and assembling. It is to provide a cover device.

本発明の把手孔用カバー装置は、マンホール蓋１の把手孔２に挿入され、把手孔２の上面開口部３を閉塞する断面逆Ｕ字形のキャップ４と、キャップ４の一方の側面板部５に形成したブラケット板部６に対して水平支軸７により回転可能に連結され、水平支軸７を中心とする自己の偏倚荷重によって側面板部５の外側に突出回転するロック板８と、キャップ４の上面板部９に形成したキー孔１０から挿入される操作キー１１とからなり、
把手孔２の内側面のオーバーハング壁１２に係脱するノーズ部１３をロック板８に形成し、操作キー１１の駆動突起１４に押される受動板部１５をロック板８の上端部に形成してあり、キャップ４が把手孔２に挿入されるとき把手孔２の孔縁部２ａに押されるカム斜面１６をノーズ部１３の下側面部に形成し、ロック板８が突出回転したときオーバーハング壁１２に対面する制止面１７をノーズ部１３の上側面部に形成したものである。 The cover device for a handle hole according to the present invention is inserted into the handle hole 2 of the manhole cover 1 and has an inverted U-shaped cap 4 that closes the upper surface opening 3 of the handle hole 2, and one side plate portion 5 of the cap 4. A lock plate 8 that is rotatably connected to the bracket plate portion 6 formed by the horizontal support shaft 7 and that protrudes and rotates to the outside of the side plate portion 5 due to its own bias load about the horizontal support shaft 7; 4 and an operation key 11 inserted from a key hole 10 formed in the upper surface plate portion 9.
A nose portion 13 that engages with and disengages from the overhang wall 12 on the inner surface of the handle hole 2 is formed on the lock plate 8, and a passive plate portion 15 that is pushed by the drive protrusion 14 of the operation key 11 is formed on the upper end portion of the lock plate 8. When the cap 4 is inserted into the handle hole 2, a cam slope 16 that is pushed by the hole edge 2a of the handle hole 2 is formed on the lower side surface portion of the nose portion 13, and overhangs when the lock plate 8 protrudes and rotates. A stop surface 17 that faces the wall 12 is formed on the upper side surface portion of the nose portion 13.

本発明の把手孔用カバー装置は、マンホール蓋１の把手孔２に挿入され、把手孔２の上面開口部３を閉塞する断面逆Ｕ字形のキャップ４と、キャップ４の一方の側面板部５に形成したブラケット板部６に対して水平支軸７により回転可能に連結され、水平支軸７を中心とする自己の偏倚荷重によって側面板部５の外側に突出回転するロック板８と、キャップ４の上面板部９に形成したキー孔１０から挿入される操作キー１１とからなるものであり、全体としての構成部品点数が極限まで減らされているから、その製作組立のコストが大幅に節減される。 The cover device for a handle hole according to the present invention is inserted into the handle hole 2 of the manhole cover 1 and has an inverted U-shaped cap 4 that closes the upper surface opening 3 of the handle hole 2, and one side plate portion 5 of the cap 4. A lock plate 8 that is rotatably connected to the bracket plate portion 6 formed by the horizontal support shaft 7 and that protrudes and rotates to the outside of the side plate portion 5 due to its own bias load about the horizontal support shaft 7; 4 and the operation key 11 inserted from the key hole 10 formed in the upper surface plate portion 9, and the number of components as a whole is reduced to the limit, so that the cost of manufacturing and assembling is greatly reduced. Is done.

また、本発明の把手孔用カバー装置では、把手孔２の内側面のオーバーハング壁１２に係脱するノーズ部１３がロック板８に形成されており、ロック板８が自重によって側面板部５の外側に突出回転したとき、オーバーハング壁１２に対面する制止面１７がノーズ部１３の上側面部に形成されているため、部外者がキャップ４を勝手に引き上げようとするときには、前記ノーズ部１５の制止面１７がオーバーハング壁１２に衝接することによって、そのような引上げ動作は制止されるので、このカバー装置はマンホール蓋用としての必要十分な施錠機能を備えている。 In the cover device for a handle hole of the present invention, the nose portion 13 that engages with and disengages from the overhang wall 12 on the inner surface of the handle hole 2 is formed on the lock plate 8, and the side plate portion 5 is caused by its own weight. When the outsider tries to lift the cap 4 without permission, the stop surface 17 facing the overhang wall 12 is formed on the upper side surface portion of the nose portion 13. Since such a pulling operation is stopped by the contact of the stop surface 17 of the portion 15 with the overhang wall 12, this cover device has a necessary and sufficient locking function for a manhole cover.

ロック板８のノーズ部１３によるキャップ４の施錠は、キャップ４を把手孔２に挿入するとき、ノーズ部１３のカム斜面１６が把手孔２の孔縁部２ａに押されてノーズ部１３が側面板部５の内側に退避回転させられた後、キャップ４の挿入動作の終端域においてロック板８が自らの偏倚荷重によって外方に自動的に突出回転することによって成立するのであるから、特別の施錠操作を必要とせず、操作の簡便性に優れている。 The cap 4 is locked by the nose portion 13 of the lock plate 8 when the cap 4 is inserted into the handle hole 2, the cam slope 16 of the nose portion 13 is pushed by the hole edge 2 a of the handle hole 2, Since the lock plate 8 automatically protrudes and rotates outward due to its own bias load in the end region of the insertion operation of the cap 4 after being retracted and rotated inside the face plate portion 5, a special It does not require a locking operation and is excellent in the ease of operation.

また、ロック板８によるキャップ４の施錠の解除は、キャップ４の上面板部９のキー孔１０から操作キー１１を挿入して操作キー１１の駆動突起１４をロック板８の受動板部１５に対面させ、操作キー１１を回すことによって水平支軸７を中心にロック板８を回転させ、ノーズ部１３をキャップ４の側面板部５の内側に退避回転させることによってなされるのであるから、解錠操作も簡単になされる。 Further, the lock 4 is unlocked by the lock plate 8 by inserting the operation key 11 from the key hole 10 of the upper surface plate portion 9 of the cap 4 and the drive protrusion 14 of the operation key 11 to the passive plate portion 15 of the lock plate 8. The lock plate 8 is rotated around the horizontal support shaft 7 by turning the operation key 11 and the nose portion 13 is retracted and rotated inside the side plate portion 5 of the cap 4. Locking operation is also easy.

図１から図５に示した実施例では、キャップ４は金属板のプレス加工によって成形され、一対の側面板部５，１８と両者間を連絡する上面板部９とで構成されている。ブラケット板部６は、一方の側面板部５にキャップ４の内側空間に向かって直角に切り曲げ形成されている。金属板製のロック板８は概略平行四辺形状に形成され、水平支軸７が通される軸孔１９はロック板８の下端部に形成され、ロック板８の重心は軸孔１９とノーズ部１３の間に来るようになっている。水平支軸７を中心とする前記偏倚荷重のため、ロック板８には図５において反時計回り方向の回転モーメントが常時働いており、キャップ４が把手孔２から取り出されている状態では、ロック板８は自重で自動回転して、ノーズ部１３が側面板部５の外側に突出している。 In the embodiment shown in FIGS. 1 to 5, the cap 4 is formed by pressing a metal plate, and is composed of a pair of side surface plate portions 5 and 18 and an upper surface plate portion 9 that communicates between them. The bracket plate portion 6 is formed by bending one side plate portion 5 at a right angle toward the inner space of the cap 4. The lock plate 8 made of a metal plate is formed in a substantially parallelogram shape, the shaft hole 19 through which the horizontal support shaft 7 passes is formed at the lower end portion of the lock plate 8, and the center of gravity of the lock plate 8 is the shaft hole 19 and the nose portion. It comes to come between thirteen. Due to the biased load about the horizontal support shaft 7, a counterclockwise rotational moment in FIG. 5 is always applied to the lock plate 8, and the lock 4 is locked when the cap 4 is taken out from the handle hole 2. The plate 8 rotates automatically by its own weight, and the nose portion 13 protrudes outside the side plate portion 5.

ロック板８の受動板部１５は、ロック板８の上端部に直角の曲げ形成されている。受動板部１５は、施錠状態においてはキー孔１０の下方空間に待機している。駆動突起１４は金属板製の操作キー１１の先端部に形成されており、操作キー１１が回されたとき、図４に示したようにロック板８の受動板部１５を押し回す。この押し回し操作によって水平支軸７を中心にロック板８が回転し、ノーズ部１３がキャップ４の内側空間に引き込まれる。 The passive plate portion 15 of the lock plate 8 is bent at a right angle at the upper end portion of the lock plate 8. The passive plate portion 15 stands by in the space below the key hole 10 in the locked state. The drive protrusion 14 is formed at the tip of the operation key 11 made of a metal plate. When the operation key 11 is turned, the drive protrusion 14 pushes the passive plate portion 15 of the lock plate 8 as shown in FIG. By this pushing operation, the lock plate 8 rotates around the horizontal support shaft 7, and the nose portion 13 is drawn into the inner space of the cap 4.

マンホール蓋１の把手孔２の内奥部２０は上面開口部３よりも広く形成されており、内奥部２０と上面開口部３との境界にあるオーバーハング壁１２は、把手孔２の内底面と平行に形成されている。キャップ４の一対の側面板部５，１８の下面は、そのほぼ過半部分が把手孔２の内底面２ｂに当接している。ノーズ部１３が突出回転した状態においては、カム斜面１６がブラケット板部６の根元部の位置決め受部２２に当接している。 The inner back portion 20 of the handle hole 2 of the manhole cover 1 is formed wider than the upper surface opening 3, and the overhang wall 12 at the boundary between the inner back portion 20 and the upper surface opening 3 is formed inside the handle hole 2. It is formed parallel to the bottom surface. Almost the majority of the lower surfaces of the pair of side plate portions 5 and 18 of the cap 4 are in contact with the inner bottom surface 2 b of the handle hole 2. In a state in which the nose portion 13 protrudes and rotates, the cam slope 16 is in contact with the positioning receiving portion 22 at the base portion of the bracket plate portion 6.

図６から図７に示した実施例のようにキャップ４の寸法形状は、本発明のカバー装置が適用されるマンホール蓋１の把手孔２の内面形状に応じて適宜変更される。マンホール蓋１の把手孔２の内奥部２０が上面開口部３よりも広く形成されていることは同じであるが、内奥部２０と上面開口部３との境界にあるオーバーハング壁１２は、把手孔２の内底面に対して傾斜して形成されている。キャップ４の一対の側面板部５，１８の下面は、その一部のみが把手孔２の内底面２ｂに当接している。
その他の構成及び作用は前記実施例と同様であるので、説明を省略する。 6 to 7, the dimensional shape of the cap 4 is appropriately changed according to the shape of the inner surface of the handle hole 2 of the manhole cover 1 to which the cover device of the present invention is applied. Although the inner back part 20 of the handle hole 2 of the manhole cover 1 is formed wider than the upper surface opening 3, the overhang wall 12 at the boundary between the inner back part 20 and the upper surface opening 3 is The handle hole 2 is inclined with respect to the inner bottom surface. Only a part of the lower surfaces of the pair of side plate portions 5 and 18 of the cap 4 is in contact with the inner bottom surface 2 b of the handle hole 2.
Since other configurations and operations are the same as those in the above embodiment, the description thereof is omitted.

本発明の一実施例に係る把手孔用カバー装置を適用したマンホール蓋の要部平面図である。It is a principal part top view of the manhole cover to which the cover apparatus for handle holes which concerns on one Example of this invention is applied. 図１のマンホール蓋の要部縦断面図である。It is a principal part longitudinal cross-sectional view of the manhole cover of FIG. 図１のマンホール蓋の要部側面図である。It is a principal part side view of the manhole cover of FIG. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 図１のＢ−Ｂ線断面図である。It is the BB sectional view taken on the line of FIG. 本発明の別の実施例に係る把手孔用カバー装置を適用したマンホール蓋の要部平面図である。It is a principal part top view of the manhole cover to which the cover apparatus for handle holes which concerns on another Example of this invention is applied. 図６のマンホール蓋の要部縦断面図である。It is a principal part longitudinal cross-sectional view of the manhole cover of FIG. 図６のマンホール蓋の要部側面図である。It is a principal part side view of the manhole cover of FIG.

符号の説明Explanation of symbols

１ マンホール蓋
２ 把手孔
２ａ 把手孔の孔縁部
２ｂ 把手孔の内底面
３ 把手孔の上面開口部
４ キャップ
５ キャップの側面板部
６ 側面板部のブラケット板部
７ 水平支軸
８ ロック板
９ キャップの上面板部
１０ キー孔
１１ 操作キー
１２ 把手孔のオーバーハング壁
１３ ロック板のノーズ部
１４ 操作キーの駆動突起
１５ ロック板の受動板部
１６ ノーズ部のカム斜面
１７ ノーズ部の制止面
１８ キャップの側面板部
１９ ロック板の軸孔
２０ 把手孔の内奥部
２１ マンホールの固定枠体
２２ キャップの位置決め受部 DESCRIPTION OF SYMBOLS 1 Manhole cover 2 Handle hole 2a Hole edge part 2b of handle hole Inner bottom face of handle hole 3 Upper surface opening part of handle hole 4 Cap 5 Side plate part 6 Cap side bracket part 7 Horizontal support shaft 8 Lock plate 9 Top plate portion 10 of the cap Key hole 11 Operation key 12 Overhang wall 13 of the handle hole Nose portion 14 of the lock plate Drive projection 15 of the operation key Passive plate portion 16 of the lock plate Nose cam slope 17 Nose stop surface 18 Side plate portion 19 of cap 19 Shaft hole 20 of lock plate Inner inner portion 21 of grip hole Manhole fixing frame 22 Cap positioning receiving portion

Claims (1)

マンホール蓋１の把手孔２に挿入され、把手孔２の上面開口部３を閉塞する断面逆Ｕ字形のキャップ４と、キャップ４の一方の側面板部５に形成したブラケット板部６に対して水平支軸７により回転可能に連結され、水平支軸７を中心とする自己の偏倚荷重によって側面板部５の外側に突出回転するロック板８と、キャップ４の上面板部９に形成したキー孔１０から挿入される操作キー１１とからなり、
把手孔２の内側面のオーバーハング壁１２に係脱するノーズ部１３をロック板８に形成し、操作キー１１の駆動突起１４に押される受動板部１５をロック板８の上端部に形成してあり、キャップ４が把手孔２に挿入されるとき把手孔２の孔縁部２ａに押されるカム斜面１６をノーズ部１３の下側面部に形成し、ロック板８が突出回転したときオーバーハング壁１２に対面する制止面１７をノーズ部１３の上側面部に形成したマンホール蓋の把手孔用カバー装置。 A cap 4 having an inverted U-shaped cross section that is inserted into the handle hole 2 of the manhole cover 1 and closes the upper surface opening 3 of the handle hole 2, and a bracket plate portion 6 formed on one side plate portion 5 of the cap 4. A lock plate 8 that is rotatably connected to the horizontal support shaft 7 and that protrudes and rotates to the outside of the side surface plate portion 5 due to its own biased load about the horizontal support shaft 7, and a key formed on the upper surface plate portion 9 of the cap 4. The operation key 11 is inserted through the hole 10, and
A nose portion 13 that engages with and disengages from the overhang wall 12 on the inner surface of the handle hole 2 is formed on the lock plate 8, and a passive plate portion 15 that is pushed by the drive protrusion 14 of the operation key 11 is formed on the upper end portion of the lock plate 8. When the cap 4 is inserted into the handle hole 2, a cam slope 16 that is pushed by the hole edge 2a of the handle hole 2 is formed on the lower side surface portion of the nose portion 13, and overhangs when the lock plate 8 protrudes and rotates. A cover device for a handle hole of a manhole cover in which a restraining surface 17 facing the wall 12 is formed on the upper side surface portion of the nose portion 13.
JP2004343753A 2004-11-29 2004-11-29 Manhole cover handle hole cover device Expired - Fee Related JP3870381B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004343753A JP3870381B2 (en) 2004-11-29 2004-11-29 Manhole cover handle hole cover device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004343753A JP3870381B2 (en) 2004-11-29 2004-11-29 Manhole cover handle hole cover device

Publications (2)

Publication Number Publication Date
JP2006152648A JP2006152648A (en) 2006-06-15
JP3870381B2 true JP3870381B2 (en) 2007-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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