WO2006057411A1 - 環縫いミシン - Google Patents
環縫いミシン Download PDFInfo
- Publication number
- WO2006057411A1 WO2006057411A1 PCT/JP2005/021907 JP2005021907W WO2006057411A1 WO 2006057411 A1 WO2006057411 A1 WO 2006057411A1 JP 2005021907 W JP2005021907 W JP 2005021907W WO 2006057411 A1 WO2006057411 A1 WO 2006057411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- looper
- support member
- sewing machine
- loopers
- needle
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/16—Arrangements for repeating thread patterns or for changing threads
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/02—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating
- D05B57/04—Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating rotary
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
- D05B57/32—Driving-gear for loop takers in chain-stitch sewing machines
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B59/00—Applications of bobbin-winding or -changing devices; Indicating or control devices associated therewith
- D05B59/04—Devices for changing the bobbin
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2203/00—Selection of machines, accessories or parts of the same kind
Definitions
- the present invention relates to a chain stitch sewing machine having a plurality of loopers corresponding to one sewing head, and more particularly, to an improvement in a mechanism for selecting an arbitrary looper for changing the color of a sewing thread.
- the present invention relates to a looper selection structure suitable for performing chain stitching on a tubular workpiece.
- a reciprocating heel needle cooperates with a looper arranged to supply a thread below the throat plate, and the looper rotates synchronously with the heel needle. It is controlled so that chain sewing is performed on the workpiece.
- a chain stitch sewing machine having a plurality of loopers corresponding to one sewing! And head and supplying different sewing threads to each looper is also known.
- a technique for selecting a looper corresponding to a desired sewing thread from a plurality of loopers so as to be positioned at a needle base, that is, a needle drop position is disclosed in Patent Documents 1 and 2, for example. ing.
- Patent Documents 1 and 2 a support body that can slide in the lateral direction, and a plurality of loopers that are rotatably arranged on the support body at a predetermined pitch along the slide direction.
- the sewing thread can be changed in color by sliding the support and selecting an arbitrary looper.
- Patent Document 1 JP 59-211670
- Patent Document 2 Japanese Patent Laid-Open No. 08-155161
- the plurality of loopers are arranged in a straight line in the horizontal direction. It has a width that corresponds to the number of loopers.
- it is necessary to place the entire looper support body having a width equal to the total number of such loopers inside the cylindrical workpiece, In addition, there is a need for a margin that allows the looper support to slide.
- the present invention has been made in view of the above-described points, and has improved a mechanism for selecting an arbitrary looper over a sewing machine having a plurality of loopers corresponding to one sewing head. It is intended to provide. Another object of the present invention is to provide a sewing machine having a looper selection structure suitable for chain stitching with a multicolor thread on a cylindrical workpiece.
- a sewing machine is a sewing machine including a reciprocatingly driven needle and a looper portion disposed below a needle plate, wherein the looper portion is on a moving path that is bent around a plurality of loopers.
- chain stitching is performed by cooperation of one looper selected at the needle drop position and the heel needle.
- the structure of the entire looper portion can be configured such that one end including the predetermined needle drop position protrudes (forms a curved portion).
- the novel configuration according to the present invention which is arranged along a curved movement path of a plurality of loopers, is located near the front surface of the sewing machine. Since the structure of the looper part can be simplified and the moving mechanism can be accommodated in a small volume, it is not limited to a cylindrical sewing product. IJ ⁇ can be applied.
- the movement mechanism of the looper part includes a support member for each looper that rotatably supports the looper, a connection member that flexibly connects the support members for each looper, and the connection member.
- a guide unit that guides the support member connected in a curved manner along the curved movement path, and a drive mechanism that moves the support member connected through the connection member along the guide unit. It can provide a flexible connection and movement structure. Such a flexible connection and movement structure is advantageous for arranging a plurality of loopers along a curved movement path.
- FIG. 1 is an external view of a multi-headed chain stitch sewing machine according to an embodiment of the present invention, which includes a plurality of chain stitch sewing heads.
- FIG. 2 is a plan view showing the upper surface of the looper base according to the embodiment.
- FIG. 3 is a front view of a looper base according to the embodiment.
- FIG. 4 is a side view of the front portion of the looper base.
- FIG. 5 is a side sectional view taken along line V—V in FIG.
- FIG. 6 is a side sectional view showing a front end portion of the same side cross section as FIG. 5 but in a different operation state.
- FIG. 7 is a plan view showing the looper base according to the embodiment with the needle plate and the looper cover removed.
- FIG. 8 is a plan view showing the same plane as FIG. 7 in a different looper selection state.
- FIG. 9 is a longitudinal sectional view of one looper located at a predetermined needle drop position.
- FIG. 10 is a perspective view showing an arrangement of a plurality of loopers arranged in a U shape in the looper base according to the same embodiment, extracted for each bent portion.
- FIG. 11 A plan view of the curved portion of the looper arrangement shown in FIG.
- FIG. 1 is an external view of a multi-head chain stitch sewing machine according to an embodiment of the present invention, which includes a plurality of chain stitch sewing machine heads 3.
- 1 is a sewing machine frame
- 2 is a table
- table 2 has a front table 2a that can be raised and lowered.
- the front surface of the sewing machine frame 1 is provided with a plurality (four in the illustrated example) of chain stitch sewing heads 3 that themselves have a well-known structural force, and each of the sewing machine heads 3 is reciprocated up and down. 4 (see Figure 3 etc.).
- a cylindrical looper base (looper part) 5 is arranged below each sewing machine head 3.
- a base sash frame (not shown) that is moved in the XZY direction is disposed on the table 2, and a pair of left and right support arms 6 are provided on the base sash frame corresponding to each sewing head 3.
- the pair of support arms 6 supports the sewing frame 7 on which a cylindrical sewing object H like a T-shirt body is set.
- the looper base 5 has a cylindrical shape (cylinder shape or rod shape) with the front end protruding into the space so that it can enter the inside of the cylindrical workpiece H set on the embroidery frame 7. ), And its base (one end near the back) is fixed to the sewing machine frame 1, and cantilever support structural force is also provided.
- FIG. 2 shows an enlarged plan view of the looper base 5 according to the embodiment. As shown in FIG. 2, a needle plate 8 having a needle hole 8a that allows the penetrating needle 4 to pass through is fixed at a position corresponding to a predetermined needle drop position on the upper surface of the looper base 5, and the other upper surface is fixed. The part is covered with a looper cover 9 and a base cover 10.
- FIG. 3 is a front view of the looper base 5 according to the embodiment
- FIG. 4 is a side view of the front portion of the looper base 5.
- 5 is a side sectional view taken along the line V-V in FIG. 2
- FIG. 6 is a diagram showing a side sectional view similar to FIG.
- FIG. 7 is a plan view of the looper base 5 with the top needle plate 8 and the looper cover 9 removed
- FIG. 8 shows a plan view similar to FIG. 7 in a looper selection state different from FIG.
- the base 11 of the looper base 5 has a support base 12 fixed to the front end thereof.
- the support base 12 is provided with a drive gear 13 that is rotationally driven by a drive source, not shown.
- the drive gear 13 is fixed to the upper end portion of the shaft 14 that is pivotally supported by the support base 12, and a pulley 15 is fixed to the lower end portion of the shaft 14.
- the pulley 15 is connected to a drive source (not shown) via a timing belt 16 and drives the drive source.
- the drive gear 13 is driven to rotate.
- the support base 12 is formed with a U-shaped guide groove 17, and a plurality of (for example, six) loopers 18 are disposed in the guide groove 17.
- Each looper 18 is supported by a support member 19 movably fitted in the guide groove 17 so as to be rotatable and vertically movable. Further, the outer periphery of the looper 18 can be engaged with the drive gear 13.
- the following driven gear 20 is fixed.
- a panel receiver 21 is provided below the looper 18, and a coil panel 22 is provided between the panel receiver 21 and the support member 19. Due to the urging of the coil panel 22, the looper 18 is always positioned at a lower position where the lower surface of the driven gear 20 contacts the upper surface of the support member 19.
- FIG. 9 is a longitudinal sectional view of one looper 18 located at a predetermined needle drop position.
- the looper 18 has an escape hole 23 opened at the top so that the needle 4 can be inserted, and a threading hole 24 penetrating vertically so that the sewing thread T can pass therethrough.
- the upper part of the threading hole 24 is bent, and the thread outlet 24a at the upper end opening is eccentric from the rotation center of the looper 18.
- the looper 18 is rotated to rotate the thread T around the needle 4, and then the needle 4 is raised.
- Chain stitching is performed by pulling the wound thread T onto the surface of the work to be sewn, with the heel 4a hanging on the bow 4a.
- the thread T is fed with a thread force arranged in a thread stand device (not shown), and is also supplied with a downward force of the threading hole 24.
- the looper 18 is controlled by the operation lever 30 and can move up and down in the support member 19.
- the pin 25 is fixed vertically to the flange portion 19 a of the support member 19.
- the pin 25 is arranged to engage with the driven gear 20 of the looper 18 when the looper 18 is in the lower position, and thus the pin 25 is engaged with the gear 20.
- the looper 18 is locked so as not to rotate.
- the pin 25 is disengaged from the driven gear 20 of the looper 18 so that the looper 18 can rotate.
- a restricting member 26 is fixed to a substantially middle portion of the support member 19.
- FIG. 10 is a perspective view showing an extracted curved portion of an array composed of a plurality of loopers 18 that are bent in a U-shape.
- FIG. 11 is a plan view of the curved portion.
- a concave portion 26a is formed on the outer periphery of the regulating member 26 provided on the support member 19, and this concave portion 26a is formed on the convex portion of the regulating member 26 of the adjacent supporting member 19. Engage.
- the support member 19 is provided not only for each looper 18 but also based on the number of loopers 18.
- An extra dummy support member 19 is also provided at the end of the array.
- the concave portion 26a of a certain restricting member 26 is engaged with the convex portion of the restricting member 26 adjacent thereto, the rotational position of the certain restricting member 26 is restricted.
- a dummy support member 19 that does not support the looper 18 is provided along with the restricting member 26 on the right side. It is.
- the connecting plate 28 that connects the adjacent support members 19 to each other is provided at the upper end of the support member 19.
- all the loopers 18 are flexibly connected in a state of maintaining a constant interval, and are formed in a guide groove 17 bent in a U shape. It will be able to move flexibly along.
- a spacer 29 (FIG. 4) for adjusting the height of the connecting plate 28 is provided.
- the needle hole 8 a of the needle plate 8 is indicated by an imaginary line.
- chain stitching is performed by the saddle needle 4 and the looper 18 that is selectively positioned.
- the drive gear 13 is engaged with only the driven gear 20 of one looper 18 selected at the predetermined needle drop position. Even if the selected looper 18 is in the lower position as shown in FIG. 6 or in the upper position as shown in FIG.
- Fig. 7 shows the state in which the rightmost looper 18 is selected and made available at a predetermined needle drop position (selection position).
- the second looper 18 from the left has a predetermined needle drop position ( The selected state is shown in (Selected position).
- the thread outlet port 24a is set to the origin position that is directed most rearward (drive gear 13 side). There is a need. For this reason, by restricting the rotational positions of the looper 18 and the support member 19, the initial position of the looper 18 positioned at the selected position is always set to the origin position.
- An operating lever 30 is provided for this purpose.
- the actuating lever 30 is L-shaped, and its bent portion is pivotally supported by a bracket 31 fixed to the lower surface of the support base 12.
- the operating lever 30 is provided so that the front end of the lever portion extending forward (to the right in FIG. 5) can be brought into contact with the lower surface of the panel receiver 21 of the selected looper 18.
- the connecting plate 32 is connected.
- the connection plate 32 is connected to a drive source (not shown), and the drive lever 30 is reciprocally rotated by the drive of the drive source.
- Actuator lever 30 is always in the lower position as shown in Fig. 6.
- the selected looper 18 is located at the lower position by the bias of the coil panel 22. Even during the movement of the looper row described above, the operating lever 30 is positioned at the lower position shown in FIG. 6, so that the driven gear 20 of the selected looper 18 is blocked by the pin 25.
- the operating lever 30 is rotated upward by driving a driving source (not shown), and the selected looper 18 is piled on the bias of the coil panel 22 as shown in FIG. Move to. As a result, the engagement between the driven gear 20 and the pin 25 of the looper 18 is released.
- the drive gear 13 is driven to rotate in this state, the selected looper 18 is rotated, and the vertical movement of the needle 4 is moved. A chain stitch will be performed.
- a female base 33 is fixed to the upper surface of the support base 12.
- the knife base 33 is provided with a movable knife 34 that can move forward and backward between the upper surface of the selected looper 18 and the lower surface of the needle plate 8 when the selected looper 18 is in the lower position.
- a fixed female 35 for cutting the sewing thread T is fixed to the female base 33 in cooperation with the movable knife 34 at the time of backward movement.
- Each looper 18 is set with a plurality of thread threads T with different colors and properties, which are arranged in a thread stand device (not shown), and each thread T is set as shown in FIG.
- the thread end led out from the thread outlet 24a through the threading hole of the thread guide body 27 and the threading hole 24 of the looper 18 is held by the thread holding device.
- the looper 18 on which a desired sewing thread T is set is moved to a predetermined needle entry position (selected position).
- the desired looper 18 is selected by rotating the drive gear 13 in a state where all the loopers 18 are in the lower position, thereby moving the looper row along the guide groove 17 and moving the desired looper 18.
- the thread T passed through each looper 18 is pulled or loosened.
- a thread-relaxation device below the base body 11 of the looper base 5 is provided a thread-relaxation device (not shown) that loosens the sewing thread T corresponding to the movement of each looper 18.
- the driving gear 13 is driven to rotate, the looper 18 is rotated, and the hook 4 of the sewing machine head 3 is moved up and down.
- the sewing frame 7 on which the cylindrical workpiece H is set is moved in the XZY direction according to the desired sewing pattern data. As a result, the desired pattern is sewn onto the workpiece H.
- the support members 19 that support the looper 18 are connected by the connecting plate 28, whereby a plurality of loopers 18 are formed in a U-shape as shown in the embodiment. It can be configured to move flexibly along the guide groove 17, and the movement locus is not limited to the U-shape but can be freely set. For this reason, a plurality of loopers 18 can be arranged narrowly so that the looper base 5 can have a narrow structure, for example, a tubular structure, and can be positioned inside a wide variety of tubular workpieces H. Can be configured to do so.
- the rotation position of the support member 19 is regulated by the regulation member 26, and the looper 18 is locked to the support member 19 by the pin 25 so as not to rotate. Since the initial rotation position of the looper 18 is always the same, the initial rotation position of the looper 18 at the time of chain stitching can always be associated with a predetermined origin position.
- the connecting plate 28 for connecting the support members 19 is provided only at the upper end of the support member 19, but each support member 28 is also supported by the connecting plate 28 below the support base 12.
- the holding member 19 may be connected. In this way, if each support member 19 is connected at two locations above and below the support base 12 by the connecting plate 28, a tilting force is not applied when the support member 19 is moved. It will move smoothly.
- a common drive gear is used for the movement drive for selecting one of the plurality of loopers 18 as the needle entry position and the rotation drive for rotating one selected looper 18 during operation. Although it was performed with the drive source via 13, it may be performed with each individual drive source. For example, when the drive gear 13 is driven by a pulse motor, it is necessary to switch and control the loop gain (follow-up performance) according to the two drives (movement and rotation) with different loads. Such switching control can be made unnecessary.
- the movement path of the plurality of loopers 18 is not limited to the U-shape as described above, and may be any other appropriately curved movement path.
- the structure is not limited to the structure in which the adjacent loopers 18 are connected by the connecting plate 28 and can be moved flexibly, and a non-flexible moving structure may be used.
- a non-flexible moving structure may be used because the moving structure can be made by turning a turntable.
- the specific structure of the moving mechanism for moving the plurality of loopers 18 along the curved movement path is not limited to the structure having the combined force of the drive gear 13 and the guide groove 17 as described above. It may be a simple structure.
- a desired curved movement path is formed by a timing belt spanned between the driving pulley and the driven pulley, and the supporting member 19 on which the looper 18 is mounted is replaced with the regulating member 26 of each supporting member 19 in the same manner as in the above embodiment.
- the concave portion 26a may be disposed so as to engage with the convex portion of the regulating member 26 of the adjacent support member 19 and connected to the timing belt.
- a chain can be used as the drive transmission means instead of the timing belt.
- the structure of the curved movement path in which the adjacent loopers 18 are connected to each other by the connecting means (28) so as to be moved flexibly can be necessarily positioned inside the cylindrical sewing product H. It doesn't have to be possible. That is, even if it is a sewing machine that sews a flat sewing product, the present invention can be applied!
- the sewing frame 7 is driven in the XZY direction in accordance with the sewing pattern data.
- the sewing frame 7 is not limited to the flat XZY drive, but includes a rotational drive as known for embroidery sewing of a hat or the like. It may be.
- the sewing head 3 and the looper base 5 may be moved according to the sewing pattern data!
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200580034366XA CN101035943B (zh) | 2004-11-29 | 2005-11-29 | 链式线迹缝纫机 |
EP05811728A EP1818438A1 (en) | 2004-11-29 | 2005-11-29 | Chain-stitch sewing machine |
US11/720,380 US7500438B2 (en) | 2004-11-29 | 2005-11-29 | Chain-stitch sewing machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004344107A JP4310264B2 (ja) | 2004-11-29 | 2004-11-29 | 環縫いミシン |
JP2004-344107 | 2004-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006057411A1 true WO2006057411A1 (ja) | 2006-06-01 |
Family
ID=36498144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/021907 WO2006057411A1 (ja) | 2004-11-29 | 2005-11-29 | 環縫いミシン |
Country Status (6)
Country | Link |
---|---|
US (1) | US7500438B2 (ja) |
EP (1) | EP1818438A1 (ja) |
JP (1) | JP4310264B2 (ja) |
KR (1) | KR100798581B1 (ja) |
CN (1) | CN101035943B (ja) |
WO (1) | WO2006057411A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4310289B2 (ja) * | 2005-04-18 | 2009-08-05 | 東海工業ミシン株式会社 | 環縫いミシン |
CN103710914B (zh) * | 2014-01-15 | 2015-02-25 | 佛山市启创科技发展有限公司 | 电脑绣花机用的多色底线待用梭芯存放器 |
US10733444B2 (en) | 2016-07-12 | 2020-08-04 | Walmart Apollo, Llc | Systems and methods for automated assessment of physical objects |
CN107780074B (zh) * | 2016-08-25 | 2019-04-05 | 北京大豪科技股份有限公司 | 高速链式刺绣机的控制方法及装置 |
CN110965223A (zh) * | 2020-01-19 | 2020-04-07 | 佛山市启创科技发展有限公司 | 一种毛巾绣电脑绣花机的打环机构 |
CN113430734B (zh) * | 2021-05-28 | 2022-07-08 | 浙江信胜科技股份有限公司 | 一种多色集线盒组合结构及绣花机 |
CN113430731B (zh) * | 2021-05-28 | 2022-07-08 | 浙江信胜科技股份有限公司 | 一种分体结构的打环头及绳绣绣花机 |
CN113430732B (zh) * | 2021-05-28 | 2022-07-08 | 浙江信胜科技股份有限公司 | 一种多功能的多色绳绣装置及绣花机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE496288C (de) * | 1927-06-17 | 1930-04-16 | Roehrsdorfer Naehmaschinenfabr | Vierfaden-Wechselstich-Naehmaschine mit huelsenfoermigem Fadenvorleger unterhalb derStichplatte |
US3981256A (en) * | 1975-05-09 | 1976-09-21 | J. P. Stevens & Co., Inc. | Magnetic automatic bobbin changer for sewing machines |
JPS59211670A (ja) * | 1983-05-12 | 1984-11-30 | 東海工業ミシン株式会社 | ミシンにおける縫糸の切換え装置 |
JP3579801B2 (ja) * | 1994-12-06 | 2004-10-20 | 東海工業ミシン株式会社 | 環縫いミシン |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US862033A (en) * | 1905-01-05 | 1907-07-30 | Edwin J Toof | Interchangeable lock and chain stitch sewing-machine. |
US3747547A (en) * | 1971-02-23 | 1973-07-24 | Bobbin Monitor Corp | Bobbin changing mechanism method and product |
JPH08243282A (ja) * | 1995-03-14 | 1996-09-24 | Tokai Ind Sewing Mach Co Ltd | 多頭式ミシンの駆動装置 |
EP0829565A1 (en) * | 1996-09-16 | 1998-03-18 | Kinoshita Precision Industrial Co., Ltd. | A thread exchanger device for sewing machine |
-
2004
- 2004-11-29 JP JP2004344107A patent/JP4310264B2/ja not_active Expired - Fee Related
-
2005
- 2005-11-29 KR KR1020077006718A patent/KR100798581B1/ko not_active IP Right Cessation
- 2005-11-29 WO PCT/JP2005/021907 patent/WO2006057411A1/ja active Application Filing
- 2005-11-29 CN CN200580034366XA patent/CN101035943B/zh not_active Expired - Fee Related
- 2005-11-29 US US11/720,380 patent/US7500438B2/en not_active Expired - Fee Related
- 2005-11-29 EP EP05811728A patent/EP1818438A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE496288C (de) * | 1927-06-17 | 1930-04-16 | Roehrsdorfer Naehmaschinenfabr | Vierfaden-Wechselstich-Naehmaschine mit huelsenfoermigem Fadenvorleger unterhalb derStichplatte |
US3981256A (en) * | 1975-05-09 | 1976-09-21 | J. P. Stevens & Co., Inc. | Magnetic automatic bobbin changer for sewing machines |
JPS59211670A (ja) * | 1983-05-12 | 1984-11-30 | 東海工業ミシン株式会社 | ミシンにおける縫糸の切換え装置 |
JP3579801B2 (ja) * | 1994-12-06 | 2004-10-20 | 東海工業ミシン株式会社 | 環縫いミシン |
Also Published As
Publication number | Publication date |
---|---|
KR20070058519A (ko) | 2007-06-08 |
CN101035943B (zh) | 2011-07-20 |
CN101035943A (zh) | 2007-09-12 |
US7500438B2 (en) | 2009-03-10 |
JP4310264B2 (ja) | 2009-08-05 |
US20080029005A1 (en) | 2008-02-07 |
EP1818438A1 (en) | 2007-08-15 |
JP2006149623A (ja) | 2006-06-15 |
KR100798581B1 (ko) | 2008-01-28 |
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