CN1206778C - Card adapter for receiving one-type PC card - Google Patents
Card adapter for receiving one-type PC card Download PDFInfo
- Publication number
- CN1206778C CN1206778C CNB011192135A CN01119213A CN1206778C CN 1206778 C CN1206778 C CN 1206778C CN B011192135 A CNB011192135 A CN B011192135A CN 01119213 A CN01119213 A CN 01119213A CN 1206778 C CN1206778 C CN 1206778C
- Authority
- CN
- China
- Prior art keywords
- card
- card connector
- pin end
- earth terminal
- connecting rod
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
Abstract
Disclosed is an improved card connector (2) for receiving at least one PC card (1). The card connector includes a card connector section (3) and a substrate connector section (4) wherein the card connector section (3) includes an insulating housing (5) having a lateral array (7) of pin terminals (6) to mate with corresponding receptacles of the card and grounding terminals (9) to contact the outer casing of the card. The insulating housing further includes a rearwardly extending alignment extension (28) having a leg portion (29) extending downwardly therefrom. The pin terminals include connections tails (8) arranged in a single row along the leg portion (29) of the alignment section (28). The substrate connector section (4) includes signal terminals (22) having engagement tails (22a) with a 'C'-shaped contact section for receiving a respective connection tail of the pin terminal of the card connector section along with an adjacent leg portion (29) of the alignment section (28). This arrangement permits the significant reduction of the longitudinal size of the card connector.
Description
Technical field
The present invention relates to a kind of electric power connector, relate in particular to a kind of card connector that is used to receive one or more personal computer cards.
Background technology
Traditional card connector has pin end array and the earth terminal that is arranged in parallel and is fit to receive one or more personal computers or other storage cards.Pin end be in line arrange with card in the socket of the corresponding corresponding card arranged of being in line closely cooperate (referring to the flat No.9-54898 of Japanese Patent Application Laid-Open), and earth terminal is fit to the external conductive casing of Connection Card.This card connector can be equipped with the ejection mechanical device of card, is used for taking out card from card connector.
In this card connector, this grounding terminals must be connected to the earthed circuit of the given circuit plate that card connector is installed.From the flat No.9-54898 of Japanese Patent Application Laid-Open as can be seen, in order to finish this connection, receive in the card connector of single card in known being suitable for, earth terminal extends back from the terminal rear portion and covers the end of pin end, and is connected to the earthed circuit of circuit board by the extension of earth terminal or continuous barricade.
Having on two or more planes under the situation of two or more pin end arrays at card connector, can not rely on simple barricade to realize the ground connection of above-described single pin end array.And, it is known at the rear portion of card connector a delay circuit plate being set, be thus connected the end of pin end and the lead that earth terminal arrives corresponding delay circuit plate, then, the delay circuit plate is connected to the circuit board that card connector is installed by utilizing plate to the connector or the card edge connector of plate.
Since delay circuit plate and plate have sizable extension to the connector of plate from the card connector rear portion, use this delay circuit plate and plate to be difficult to reduce the size of card connector to the connector of plate.In addition, in this connector of technology formerly, part and step number increase, so manufacturing cost increases.
Summary of the invention
An object of the present invention is to install a kind of size and be reduced to the minimum card connector that the earth terminal connecting rod is arranged.
In order to achieve this end, a kind of card connector that is used to receive two kinds of personal computer cards is provided, card connector has insulation shell, be equipped with and be fit to and the array of the socket of corresponding personal computer card is combined closely two horizontal parallel pin end, and on each array, extend two parallel earth terminals that the external shell that is fit to and blocks links to each other.This card connector further comprises the earth terminal connecting rod, and the horizontal array that vertically passes pin end links together pin end, thereby allows all earth terminals to be connected to the earthed circuit of given circuit plate by the earth terminal connecting rod.
Use this configuration, earth terminal is connected to the earthed circuit of given circuit plate by the earth terminal connecting rod, thereby eliminates the use of delay circuit plate, like this, in existing connector, can be in the rear portion of insulator expansion card connector size.Thereby reduce the longitudinal size of card connector of the present invention.
Card connector of the present invention further comprises the parts and the bottom connector component that is connected to the card connector parts that hold personal computer card.These card connector parts comprise an insulation shell, two transverse pipe foot arrays are installed and comprise two straight line extensions that extend back, and this straight line extension has a L bracket part of extending thus downwards.Two groups of pin end of horizontal array are installed in the insulator, and so the connection of their " L " shape is terminal by the single setting of straight line extension along housing.This bottom link comprises the signal end that is used for tube connector foot when two parts connect, promptly, when the card connector parts are connected to the bottom connector component, connect terminal terminal linking to each other that be connected with at the signal end of the insulation shell front portion of bottom connector component of pin end at the rear portion of the insulation shell be exposed to the card connector parts.The connection end of the signal end of bottom link is set to each link that comprises " C " shape and is used for connecting terminal along each of the pin end of the adjacent supports part receiving card connector component of straight line extension.
Under this set of the connection end of the signal end of the insulation shell front portion of bottom connector component, therefore in the space that the pin end of the signal end of bottom connector component and card connector parts is limited in reducing, further help the reducing of longitudinal size of card connector.
Other purposes of the present invention and benefit can be understood from the preferred embodiment according to invention in conjunction with the accompanying drawings of the present invention that describes below.
Description of drawings
What characteristics of the present invention were especially proposed in additional claim believes it is novel.The present invention adds its purpose and benefit, can be clearer with reference to description below in conjunction with accompanying drawing, and the identical same element of digitized representation among the figure, wherein:
Fig. 1 is the longitudinal sectional drawing according to the card connector of the first embodiment of the present invention;
Fig. 2 is the longitudinal sectional drawing of amplification of essential part of the card connector of Fig. 1;
Fig. 3 is in order to show the plane graph of the card connector that extra detail section is taken apart;
Fig. 4 is the plane graph of card connector;
Fig. 5 is the rearview of card connector;
Fig. 6 is the front view of card connector;
Fig. 7 is the end view of card connector;
Fig. 8 is the bottom view of card connector;
Fig. 9 is the perspective view of a part of the amplification of card connector, illustrate the earth terminal connecting rod how to run through the pin that is arranged at different level-and-earth terminal;
Figure 10 is the perspective view of earth terminal connecting rod;
Figure 11 is punching press and is formed with a plurality of that be arranged in parallel and be connected to the plane graph of the thin slice of carrying tablet;
Figure 12 is the longitudinal sectional drawing of amplification of the bottom connector component of card connector;
Figure 13 is the plane graph of the amplification of bottom connector component;
Figure 14 is a punching press and a part that forms the thin slice of ground connection link;
Figure 15 is the punching press of Figure 14 and the end view that forms the thin slice of ground connection link;
Figure 16 is the longitudinal sectional view of the card connector that contains the horizontal array pin end according to a second embodiment of the present invention; With
Figure 17 is the longitudinal sectional view of amplification of essential part of the card connector of Figure 16.
Embodiment
At first comprise by whole card connector parts 3 and bottom connector component 4 that connects referring to figs. 1 to 3, one card connectors 2 that are used to hold personal computer card 1.
Simultaneously referring to Fig. 4 to 8, card connector parts 3 comprise insulation shell 5, be equipped with and two horizontal arrays 7 of the pin end 6 that the socket of the personal computer card 1 of corresponding two kinds of cooperations is combined closely, go earth terminals 9 with two of the external shell that is fit to be connected each card 1.Insulation shell 5 comprises two straight line extensions 28 that extend back (two horizontal arrays of counterpart terminal), and the holder part 29 of a L shaped shape that extends is downwards thus arranged.The horizontal array 7 of pin end 6 is vertically arranged on horizontal plane top or the lower space interval in parallel with each other, and each array comprises that top and the row bottom of pin end is attached to each card.Earth terminal 9 similarly is arranged on two horizontal planes, so the row on each top of the pin end of each line pipe foot 9 in each horizontal array extends.The pin end 6 of two groups of horizontal arrays is installed, so the connection end 8 of their " L " shape is along the 29 single arrangement (see figure 2)s of holder part separately at the straight line extension 28 at insulation shell 5 rear portions in insulation shell 5.Connecting spacing between terminal 8 at these straight lines is half of distance between the pin end 6.
The row of pin end 9 on each top of pin end 6 extend and vertical arrangement when personal computer card 1 inserts card connector, to contact with the outer surface of each personal computer shell.
Earth terminal connecting rod 10 (see figure 10)s of " U " shape are installed in the insulation shell 5, the vertical pin that runs through top and pin end array 7 bottom-is connected adjacent earth terminal together to the interval of-pin, and by all earth terminal 9 of the earth terminal connecting rod 10 connections earthed circuit of layer circuit board on earth.Shown in Fig. 3 and 9 to 11, two adjacent earth terminals 9 of each earth terminal connecting rod 10 cross-over connection.In addition, as shown in Figure 8, each earth terminal connecting rod 10 stretches out so that two ground termination points 10a to be provided from a bottom 5a of insulation shell 5.
Specifically referring to Fig. 3, two cards eject mechanical devices 12 and are installed on vertical side 5b of insulation shell 5, and each is assigned in the array 7 of pin end 6 one.Each card ejects mechanical device 12 and comprises that 13, one of ejection rods contain the catch bar 14 that promotes button at the one end, and at ejection rod 13 with promote intervention gear 15 between dried 14.Ejection rod 13 at one end has a suspension hook 18 that is used to catch and eject the front end of each personal computer card.When pressing the button 16, catch bar 14 is pushed rearward moving to drive forwards ejection rod 13 and ejecting card.
The metal shell 19 of a rectangle is installed on the outer surface of insulation shell 5.At least one longitudinal side wall of rectangular enclosure has the vertical support arm 5b with housing to cooperate to guide the rear wall 26 of the slit 11 of personal computer card 1 and rectangular enclosure 19 to cover the rear portion of bottom connector components 4.An opening 20 that is used to hold the personal computer card of insertion is arranged in the front portion of insulation shell 5.
With reference to figure 9, earth terminal connecting rod 10 is installed to insulation shell 5 in arrow " A " indicated direction and two horizontal planes passing earth terminal 9.As shown in figure 11, the thin sheet metal by a punching press and an elongation of formation constitutes earth terminal 9.Each earth terminal has a joint aperture 9a who therefrom passes with the one leg that allows earth terminal connecting rod 10 with respect to its longitudinal center's axle offset.Engaging aperture 9a has the contact of two similar cantilevers to form thereon to connect earth terminal connecting rod 10.
With reference to Figure 12 and 13, bottom connector component 4 comprises signal end 22 and the ground connection link 23 that is installed in its common " L " shape insulation shell 21.Delegation's signal end 22 is to insert from the bottom of insulation shell 21 and extend along the upright wall 21a of insulation shell 21.Similarly, another row signal end 22 is inserted from the bottom of insulation shell 21 and by vertical separating away from upright wall 21a.Signal end 22 is set on the identical distance, that is to say identical distance, and the connection of orthicon foot 6 terminal 8 engagement end 22a the same and signal end 22 extend to the front portion of card connector.As shown in figure 12, two row signal ends 22 have different height to connect terminal with the be positioned upper and lower of link array 7 of the engagement end 22a that allows them.Equally, signal end 22 comprises the terminal 22b of the welding that extends under insulation shell 21 lower surface, the end that delegation extends forward and another row end that extends back from the housing lower surface.As shown in figure 12, and simultaneously with reference to figure 2, the terminal 22a of the connection of the signal end 22 of bottom connector component 4 is set to each link that comprises common " C " shape and is used for connecting end 8 along each of the pin end 6 of the adjacent supports part 29 receiving card connector components of straight line extension 28.
Referring now to Figure 14 and 15,, each ground connection link 23 has the parts of two integral body that connect by center joint fastener 27, and these parts each have the aperture 24 of joint to make to be fit to and link to each other with two of earth terminal connecting rod 10 parallel supports.Each engages aperture 24 has the contact 24a of similar cantilever of formation " U " shape therein to connect the one leg of earth terminal connecting rod.Thin sheet metal by a punching press and an elongation of formation constitutes ground connection link 23.By the horizontal wall of the ground connection link being inserted housing 21 they are installed in the housing 21.Each ground connection link 23 has a terminal 23a of welding that extends forward from the lower surface of insulation shell 21.Insulation shell 21 horizontal wall 21b comprise the end 10a of through hole 25 with the leg that holds earth terminal connecting rod 10.
So the bottom link 4 that constitutes is connected to card connector parts 3 and engagement end 22a that a card connector 2 has each signal end 22 is installed is connected with the engagement end 8 of corresponding pin end 6, and has earth terminal connecting rod 10 to pass earth terminal 9 adjacent top and the bottom and ground connection link 23.
So the card connector of installing 2 can be installed on the bottom circuit board to the earthed circuit of circuit board to the signal covering circuit lead of circuit board with by the terminal 23a of the welding of welding ground connection link 23 by the terminal 22b of the welding of welding signal end 22.Therefore, pin end 6 is connected to the signal covering circuit of circuit board and earth terminal 9 is connected to circuit board by earth terminal connecting rod 10 and ground connection link 23 earthed circuit by signal end 22.
As mentioned above, two row earth terminals 9 link together by earth terminal connecting rod 10, and these are connected to the earthed circuit of given circuit plate by ground connection link 23.That is to say, earth terminal connecting rod 10 is connected to the earthed circuit at the circuit board of insulation shell 5 bottoms.This set just there is no need to have used delay circuit at the card connector rear portion, has therefore reduced the longitudinal size of card connector 2 greatly, and allows to install additional electronic component to replace delay circuit and connector on circuit board.Therefore, additional electronic component can be installed on the circuit board and allows to increase the density of elements on circuit board near insulation shell 5.
In addition, the engagement end 22a of the signal end 22 of connection of the short foot 6 of card connector parts 3 terminal 8 and bottom connector component 2 is connected in the space of minimum of front portion of insulation shell 21 of insulation shell 5 rear portions of card connector parts 3 and bottom connector component 4, so constitutes to reduce the longitudinal size of card connector.
Referring to other embodiment of the present invention, and referring to figs. 16 and 17, a card connector 102 has pin end 106 linear array to become delegation, so forms the single horizontal array of a pin end 106.More particularly, card connector 103 has a single array that is installed in top and the row bottom of the pin end 106 in its insulation shell 105, and their engagement end 108 extends to the rear portion of insulation shell 105.There is not earth terminal to be used for this embodiment.
The connection end 108 of signal end 122 orthicon foots 106 equally is arranged on identical distance, and is installed in their insulation shell 121 of the terminal 122b bottom of welding connector component 104 that extends forward along the lower surface of insulation shell 121 from anterior their the engagement end 122a and having that extends of insulation shell 121.
In this embodiment, pin end 106 and reclose in the space of minimum in the face of signal end 122 allows dwindling of card connector 102 longitudinal sizes.Equally, weld terminal 122b and be soldered to the signal circuit that is retained in by the circuit board in the zone of insulation shell 121 be combined intos of the insulation shell 105 of card connector parts 102 and bottom connector component.
Can understand the present invention can realize with other special shapes that do not break away from its spirit or principal character.Therefore, existing example and embodiment, what should be considered as illustrative in all relations is not restrictive, and the invention is not restricted to detailed description given here.
Claims (8)
1. a card connector (2), it is installed on the bottom circuit board, is used to receive at least a personal computer card (1), comprising:
Card connector parts (3) that are used for receiving card, comprise insulation shell (5), a horizontal array (7) of the pin end (6) of combining closely with the socket of corresponding personal computer card (1) is installed, and comprise that has the straight line extension (28) that extends back of the holder part (29) of extension downwards, wherein each of pin end (6) comprises a connection end (8) of arranging along the holder part of straight line extension
A bottom connector component (4) that is connected to card connector parts (3), and comprise the insulation shell (21) that a plurality of signal ends (22) are installed, each signal end has an engagement end (22a), be suitable for when card connector parts (3) are connected to bottom connector component (4), connecting the connection end (8) of the pin end of a correspondence, wherein each engagement end comprises the link of " C " shape, is used to receive partly each connection terminal (8) of the pin end (6) of (29) of adjacent stent along the straight line extension.
2. card connector as claimed in claim 1 (2), wherein card connector parts (3) further comprise a plurality of earth terminals (9), this earth terminal (9) is in the array (7) of described pin end (6) top and be parallel to the array (7) of described pin end (6) and the external shell of suitable Connection Card (1).
3. card connector as claimed in claim 2 (2), wherein connector component (3) further comprises the earth terminal connecting rod (10) of a plurality of " U " shape, and the earth terminal connecting rod (10) that is somebody's turn to do " U " shape runs through the array (7) of pin end and is fit to connect two adjacent earth terminals (9).
4. a card connector (2), it is installed on the bottom circuit board, is used for receiving at least two kinds of personal computer cards (1), comprising:
Card connector parts (3) that are used for receiving card, comprise insulation shell (5), two horizontal arrays (7) of the pin end (6) of combining closely with the socket of corresponding personal computer card (1) are installed, and each has a holder part (29) of extending downwards to comprise two straight line extensions (28) that extend back, wherein each of pin end (6) comprises that one connects terminal (8), and wherein each array (7) of pin end (6) is installed in the insulation shell (5), so each connect terminal (8) arranged along the holder part of straight line extension and
A bottom connector component (4) that is connected to card connector parts (3), and comprise that an insulation shell (21) is equipped with a plurality of signal ends (22), each has an engagement end (22a) to be fit to the connection end (8) of the pin end of a correspondence of connection when card connector parts (3) integrally are connected to bottom connector component (4), wherein each engagement end comprises the link of " C " shape, is used for receiving partly each connection terminal (8) of the pin end (6) of (29) of adjacent supports along straight line extension (28).
5. card connector as claimed in claim 4 (2), wherein card connector parts (3) further comprise a plurality of earth terminals (9), this earth terminal is in the array (7) of described pin end (6) top and be parallel to the array (7) of described pin end (6), the external shell that is fit to Connection Card (1), with the earth terminal connecting rod (10) of a plurality of " U " shape, the earth terminal connecting rod (10) that is somebody's turn to do " U " shape runs through the array (7) of pin end and is fit to connect two adjacent earth terminals (9).
6. card connector as claimed in claim 4 (2), wherein bottom connector component (3) is equipped with the end points (10a) that a plurality of ground connection links (23) are used to receive earth terminal connecting rod (10).
7. card connector as claimed in claim 6 (2), wherein each ground connection link (23) has a joint aperture (24) that is formed on wherein, allow the insertion of the connection end point (10a) of link connecting rod (10), each engages aperture (24) has contact (24a) to be fit to connect connection end point (10a).
8. card connector as claimed in claim 5 (2), wherein each earth terminal (9) has a joint aperture that is formed on wherein, and earth terminal connecting rod (10) passes through from this joint aperture, engages tangible one-tenth two contacts therein, aperture, to connect the earth terminal connecting rod.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000087870A JP2001283956A (en) | 2000-03-28 | 2000-03-28 | Connector for card |
| JP87870/2000 | 2000-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1316806A CN1316806A (en) | 2001-10-10 |
| CN1206778C true CN1206778C (en) | 2005-06-15 |
Family
ID=18603819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011192135A Expired - Fee Related CN1206778C (en) | 2000-03-28 | 2001-03-27 | Card adapter for receiving one-type PC card |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1152493B1 (en) |
| JP (1) | JP2001283956A (en) |
| KR (1) | KR100414848B1 (en) |
| CN (1) | CN1206778C (en) |
| DE (1) | DE60120037T2 (en) |
| TW (1) | TW499076U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445471B1 (en) * | 2007-07-13 | 2008-11-04 | 3M Innovative Properties Company | Electrical connector assembly with carrier |
| CN110299945B (en) * | 2017-04-06 | 2022-05-17 | 青岛海信宽带多媒体技术有限公司 | Optical module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818239A (en) * | 1987-04-24 | 1989-04-04 | Maxconn, Inc. | Stacked multipin connectors |
| JP2827767B2 (en) * | 1992-11-20 | 1998-11-25 | 富士通株式会社 | Memory card connector |
| US5688130A (en) * | 1996-04-10 | 1997-11-18 | Molex Incorporated | Electrical connector assembly for pc cards |
| JPH10255881A (en) * | 1997-03-07 | 1998-09-25 | Molex Inc | Electric connector provided with signal and ground terminals |
| MY123239A (en) * | 1998-12-18 | 2006-05-31 | Molex Inc | Card-receiving connector with grounding terminal |
-
2000
- 2000-03-28 JP JP2000087870A patent/JP2001283956A/en active Pending
-
2001
- 2001-03-27 CN CNB011192135A patent/CN1206778C/en not_active Expired - Fee Related
- 2001-03-28 EP EP01107686A patent/EP1152493B1/en not_active Expired - Lifetime
- 2001-03-28 KR KR10-2001-0016145A patent/KR100414848B1/en not_active IP Right Cessation
- 2001-03-28 DE DE60120037T patent/DE60120037T2/en not_active Expired - Fee Related
- 2001-04-25 TW TW090204665U patent/TW499076U/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1152493A3 (en) | 2002-03-06 |
| DE60120037D1 (en) | 2006-07-06 |
| JP2001283956A (en) | 2001-10-12 |
| EP1152493A2 (en) | 2001-11-07 |
| DE60120037T2 (en) | 2006-12-21 |
| EP1152493B1 (en) | 2006-05-31 |
| TW499076U (en) | 2002-08-11 |
| KR20010093731A (en) | 2001-10-29 |
| KR100414848B1 (en) | 2004-01-13 |
| CN1316806A (en) | 2001-10-10 |
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