WO2003018365A1 - Dispositif et procede d'installation d'un haut-parleur pour porte de vehicule - Google Patents
Dispositif et procede d'installation d'un haut-parleur pour porte de vehicule Download PDFInfo
- Publication number
- WO2003018365A1 WO2003018365A1 PCT/JP2002/008109 JP0208109W WO03018365A1 WO 2003018365 A1 WO2003018365 A1 WO 2003018365A1 JP 0208109 W JP0208109 W JP 0208109W WO 03018365 A1 WO03018365 A1 WO 03018365A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speaker
- vehicle door
- door
- bracket
- seat
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 125000006850 spacer group Chemical group 0.000 claims abstract 5
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0019—Side or rear panels
- B60R2011/0021—Doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/0043—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for integrated articles, i.e. not substantially protruding from the surrounding parts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
Definitions
- the present invention relates to a vehicle door speaker mounting device and a mounting method which can be installed at a low price in response to differences in thickness, shape, and the like of a vehicle door to which a speaker is mounted.
- doors In recent automobiles, the thickness of doors has tended to increase, and the thickness has been diversified. Depending on the model, door trims (door interior panels) have been provided with places (storage sections) for placing drink bottles and cans, for example. There are also car models. Therefore, a door having a large distance between a door trim and an inner sheet metal which constitutes a door is particularly thick. Some doors are relatively thin. In addition, there are various types of door inner sheet metal, such as flat ones and those that are curved in order to increase mechanical strength.
- FIGS. 7A to 7C speaker units a 1 and a 2 which are changed for each vehicle type are designed and manufactured, and these are respectively held by holders, that is, brackets bl and b. They were attached to b2 and b3, and each was attached to the car door.
- FIG. 7A shows a vehicle model in which the distance between the door trim and the inner metal plate is relatively small, that is, the door has a small thickness and the shape of the inner metal plate mounting portion is flat.
- the speaker unit a1 The length is short, the length of the bracket b1 is relatively short, and the shape of the end face that is in contact with the inner sheet metal at the rear of the bracket b1 is flat.
- the one shown in FIG. 7B is for a vehicle type in which the door is relatively thin and the shape of the mounting portion of the inner metal plate is not flat but curved, and accordingly, the length of the speaker unit a 1 is small. It is short, the length of the bracket b2 is short, and the shape of the rear end of the bracket b1 is curved according to the shape of the mounting portion of the inner sheet metal on the door side.
- the one shown in Fig. 7C is for vehicles where the distance between the door trim and the inner metal plate is large and the shape of the mounting portion of the inner metal plate is flat. Therefore, the length of the bracket b3 is relatively long, and the shape of the rear end of the bracket b3 is flat.
- FIGS. 7A to 7C are only some examples, and it may be necessary to change the length of the bracket or complicate the shape of the rear end.
- the present invention has been made to solve such a problem, and a vehicle door speaker mounting device and mounting that can be installed at a low price in response to differences in thickness, shape, and the like of a vehicle door to which speed power is mounted.
- the purpose is to provide a method. Disclosure of the invention
- the vehicle door speaker device of the present invention includes a speaker unit, a holder (bracket) for holding the speaker unit, and a speaker unit attached to the vehicle door. And a seat that can be engaged with the holding member, or has a matching contact portion at a mounting point (inner metal plate) of a speaker of a vehicle door and is attached to the holding member. It is characterized by becoming.
- FIG. 1A to 1C show an embodiment of a vehicle door speaker mounting device according to the present invention which is adapted to a first vehicle type.
- FIG. 1A is a sectional view
- FIG. 1B is a perspective view
- FIG. 1C is an exploded perspective view.
- FIG. 2 is a cross-sectional view showing a state where the vehicle door speaker mounting device according to the embodiment adapted to the first vehicle type is mounted on a vehicle door.
- FIG. 3A to 3C show an embodiment of a vehicle door speaker mounting device according to the present invention which is adapted to a second vehicle type.
- FIG. 3A is a cross-sectional view
- FIG. 3B is a perspective view
- FIG. 3C is an exploded perspective view.
- FIGS. 4A to 4C show an embodiment of the present invention applied to a third type of a vehicle door speed-fitting device.
- FIG. 4A is a cross-sectional view
- FIG. 4C is an exploded perspective view.
- FIG. 5A to 5B show a modified example of an engagement state between a holder and a seat in the vehicle door speaker mounting device of the present invention.
- FIG. 5A is an exploded side view
- FIG. 5B is a view along arrow BB of FIG. 5A.
- FIG. 6 is a cross-sectional view illustrating a modified example of an engagement state between a holder and a seat in the vehicle door speaker mounting device of the present invention.
- the vehicle door speaker mounting apparatus and mounting method according to the present invention basically includes a speaker unit, a holding body for holding the speaker unit, and a contact portion that is consistent with a speaker mounting portion of the vehicle door. And a seat engaged with the holder.
- the state of the engaged state maintained by the engagement between the holding body and the seat may include screwing, press-fitting, bonding, and the like, but any form may be used in the present invention.
- a common speaker unit and a holder for holding the same are prepared for a plurality of types of automobiles, and a seat comprising one kind of speaker unit and a speaker for assembling the speaker unit.
- a connector that is connected to the voice coil of the speed unit via a lead wire is provided on the peripheral side wall of the holder, so that the seat can be changed depending on the vehicle model. The engagement work can be performed smoothly without the lead wire getting in the way.
- FIG. 1A to 1C and FIG. 2 show an embodiment of a vehicle door speaker mounting device according to the present invention which is adapted to a first vehicle type.
- FIG. 1A is a sectional view
- FIG. FIG. 1C is a perspective view
- FIG. 1C is an exploded perspective view
- FIG. 2 is a cross-sectional view showing a state where the vehicle door speaker mounting device of the present invention is mounted on a vehicle door.
- reference numeral 1 denotes a speaker mounting device for a vehicle door, which holds a common speed unit 2 with a holding body, that is, a bracket 7, and integrates it. It consists of a speaker and a seat 3a designed and manufactured for the type of vehicle to which the speaker is to be mounted.
- 4 is a frame of the speaker unit 2
- 5 is a diaphragm
- 6 is a connector integrated with the bracket 7
- 15 is a magnet, an upper plate, a lower plate provided with a sensor pole, and between the upper plate and the center pole.
- This is a magnetic circuit consisting of a voice coil wound around a pobin arranged in the magnetic gap.
- a pobin is attached to the rear end of the diaphragm 5.
- 16 is a lead wire connecting the connector 6 and the voice coil.
- the bracket 7 is made of, for example, an ABS resin (a copolymer resin containing acrylonitrile or styrene-butadiene as a monomer) or a PP resin (a polycarbonate resin), and is formed into a cylindrical shape at the front opening of the frame 4 of the speaker unit 2. Attach the front part integrally with adhesive. Also, a through hole is opened in the peripheral side wall of the bracket 7, and the connector 6 is attached by bonding, and the connector 6 is attached from the inside of the bracket to the outside.
- ABS resin a copolymer resin containing acrylonitrile or styrene-butadiene as a monomer
- PP resin a polycarbonate resin
- the frame 4 of the speaker unit 2 may be formed of a resin, and when the bracket 7 is formed, the frame 4 and the bracket 7 may be formed by integral molding. When the bracket 7 is formed, the connector 6 of the bracket 7 may be integrally provided by insert molding.
- the rear opening of the cylindrical bracket 7 is an engaged portion of the seat 3a.
- the seat 3a is also formed of the same ABS resin or PP resin as the case of the bracket 7, and is formed in a cylindrical shape.
- Reference numeral 8 denotes a front portion of the seat base 3a, which is internally fitted from the rear opening of the bracket 7 of the speed unit 2 to form an engaging portion for press-fitting engagement.
- Reference numeral 9 denotes a connector escape slit provided at the front portion 8 of the seat base 3a, which escapes the connector 6 when the connector 6 is fitted inside the bracket 7.
- the seat 3a in which the front part 8 is press-fitted from the rear opening part to the bracket 7 holding the speaker unit 2 by press-fitting is formed so as to select the outer diameter to be press-fitted.
- a step 10a is provided on the outer peripheral side wall of the seat 3a, and when the seat 3a is pressed into the bracket 7, the step 10a functions as a stop.
- the end face of the flange 10b at the rear of the seat 3a is formed to have a shape corresponding to the shape of the inner metal plate 20b to which the vehicle door speaker mounting device is mounted.
- the vehicle door speaker mounting device 1 is mounted in a vehicle door 20 (not shown). That is, as shown in FIG. 2, a flange 10 b provided on a rear portion of the seat 3 a of the speed force mounting device 1 is attached to an inner metal plate 20 b of the vehicle door 20 so as to be in contact with the speaker mounting device. 1 is interposed between the inner sheet metal 20b and the door trim 20c.
- reference numeral 20a denotes an outer sheet metal
- 21 denotes a window glass of an automobile, which is configured to be movable in an arrow Y direction.
- Reference numeral 22 denotes a porous metal plate, that is, a grill provided at a position facing the sound emitting portion of the speaker unit 2 of the door trim 20c.
- FIG. 3A to 3C show an embodiment of a speaker mounting device for a vehicle door when the inner metal plate 20b is curved.
- FIG. 3A is a sectional view
- FIG. 3B is a perspective view
- FIG. 3C is an exploded perspective view.
- reference numeral 1 denotes a vehicle door speaker mounting device, which has a common speaker unit 2, a bracket 7 for holding the same, and a seat 3 designed and manufactured corresponding to a vehicle type to which a vehicle door speaker is to be mounted.
- b and the configuration, shape and dimensions of the speaker unit 2 and the bracket 7 are shown in FIGS. 1A to 1C (and FIG. 2). And the same structure as the bracket 7. Therefore, the description is omitted.
- the seat 3b has a shape and dimensions similar to those of the seat 3a, such that the front portion 8 is internally fitted into the bracket 7 of the speaker unit 2 from its rear opening, and is press-fitted and engaged. Further, a step 10a is formed on the outer peripheral side wall, and the step 10a is used when the seat 3b is press-fitted into the speaker unit 2 in an in-fit state. It is designed to function as a stop.
- the end face of the flange 10b at the rear part of the seat 3b has an inner sheet metal 20b of the vehicle door 20 on which the vehicle door speed mounting device 1 is mounted. Therefore, it is designed to be curved and conform to the shape of the wave conforming to it.
- FIGS. 1 and FIGS. 2 show an embodiment of a vehicle door speaker mounting device in a case where a gap between the inner sheet metal 20b and the door trim 20c is large
- FIG. 4A is a sectional view
- FIG. 4B is a perspective view
- FIG. 4C is an exploded perspective view.
- reference numeral 1 denotes a vehicle door speaker mounting device, a common speed unit 2, a bracket 7 for holding the speaker unit 2, and a seat 3 designed corresponding to a vehicle type to which the vehicle door speaker mounting device is mounted.
- the structure, shape, and dimensions of the speed unit 2 and the bracket 7 are shown in FIGS. It has the same configuration as the speaker unit 2 and the bracket 7 of the vehicle door speaker device of the present invention shown in FIG. C and FIG. Therefore, the description is omitted.
- the seat 3c has a front portion 8 which is internally fitted to the bracket 7 of the speed-pulling unit 2 from the rear and press-fits in the same manner as the seats 3a and 3b. It has a shape and dimensions, and has a forwardly-facing stepped portion 10a formed on the outside, and the stepped portion 10a is a bracket for holding the speaker unit 2 with the seat 3c. It is designed to function as a stopper when it is press-fitted in an internal fitting.
- the size (length) of the portion of the seat 3c after the step portion 10a is different from that of the mounting position of the inner metal plate of the vehicle door (not shown) on which the vehicle door speaker mounting device 1 is mounted. It is designed to fit.
- the distance T between the inner metal plate 20b and the door trim 20c is large, that is, the door is thick, and the inner metal plate 2 It can be said that it is attached to the flat vehicle door 20 (not shown) of 0b.
- the types 3a, 3b, and 3c of the seat 3 to be mounted on the bracket 7 holding one type of speed unit 2 are provided.
- the bracket 7 holding one type of speed unit 2 By changing it, it is possible to support three types of vehicle doors, which can greatly contribute to the reduction of the manufacturing cost of the vehicle door power device.
- FIG. 5A to 5B show a modified example of the engagement state between the bracket 7 and the seat 3 of the speaker mounting device for a vehicle door of the present invention.
- FIG. 5A is an exploded side view
- FIG. FIG. 5B is a view along arrow BB of FIG. 5A.
- b for example, a plurality of slits, 12a, 12a, and the engaging piece 1 2b formed therebetween at equal intervals on the outer peripheral surface of the front portion 8 of the seat 3. , 1 2b-and mating recesses 1 1b, 1 11) when mating the front part 8 of the seat base 3 with the bracket 7 1 2 b, 1 2 b Fit ''.
- the assembling accuracy can be increased, and the torsional strength can be improved.
- FIG. 6 further shows a modified example of the engaged state of the engaged part of the bracket 7 and the engaging part of the seat 3 of the speaker mounting device for a vehicle door of the present invention, which is formed of synthetic resin.
- An annular V-shaped groove 13 is formed in the inner peripheral wall near the rear opening of the cylindrical bracket, and the outer peripheral wall of the engaging portion of the front portion 8 of the synthetic resin cylindrical base 3 is not so high.
- a slightly protruding V-shaped projection 14 is provided as an integral part, and the engaging part of the front part 8 of the seat base 3 is forcibly pressed into the rear opening of the bracket 7 in the direction of the arrow to form a V-shaped groove 13
- the V-shaped projection 14 is engaged with the connector (FIG. 6 does not show the speaker unit II connector 1).
- the front portion 8 of the seat 3 is fitted in the bracket 7, but the engagement between the bracket ⁇ and the seat 3 is not necessarily required. It goes without saying that 7 may be fitted inside the front of seat 3.
- the speaker mounting device for a vehicle door of the present invention can have various embodiments.
- a main unit including a speaker unit having commonality and a holding body for holding the speaker unit is prepared, and a plurality of types of seats are prepared. And car What is necessary is just to exchange a seat according to the vehicle model of. Therefore, it is possible to reduce the manufacturing cost of the spinning force device for vehicle doors and to realize a lower price.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10293963T DE10293963T5 (de) | 2001-08-23 | 2002-08-08 | Lautsprecherbaugruppe für Fahrzeugtür und Verfahren zum Befestigen eines Lautsprechers für eine Fahrzeugtür |
GB0308597A GB2383711B (en) | 2001-08-23 | 2002-08-08 | Speaker assembly device for door of vehicle and method for mounting speaker for door of vehicle |
US10/398,624 US6843345B2 (en) | 2001-08-23 | 2002-08-08 | Device and method for installing vehicle door speaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001252787A JP2003063316A (ja) | 2001-08-23 | 2001-08-23 | 車両ドア用スピーカ装置 |
JP2001-252787 | 2001-08-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003018365A1 true WO2003018365A1 (fr) | 2003-03-06 |
Family
ID=19081208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/008109 WO2003018365A1 (fr) | 2001-08-23 | 2002-08-08 | Dispositif et procede d'installation d'un haut-parleur pour porte de vehicule |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2003063316A (ja) |
DE (1) | DE10293963T5 (ja) |
GB (1) | GB2383711B (ja) |
WO (1) | WO2003018365A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007124448A (ja) * | 2005-10-31 | 2007-05-17 | Pioneer Electronic Corp | スピーカユニット及びスピーカ取付用ブラケット |
US10513230B2 (en) * | 2017-10-30 | 2019-12-24 | Hyundai Motor Company | Speaker for vehicle |
US11445292B2 (en) | 2018-04-17 | 2022-09-13 | Yamaha Corporation | Speaker system and vehicle door |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0193895U (ja) * | 1987-12-15 | 1989-06-20 | ||
US5133428A (en) * | 1991-04-04 | 1992-07-28 | Perrson John K | Direction-adjustable speaker system |
JPH05553U (ja) * | 1991-06-21 | 1993-01-08 | オンキヨー株式会社 | 車両用スピーカ装置 |
JPH05116570A (ja) * | 1991-10-30 | 1993-05-14 | Toyota Autom Loom Works Ltd | 車両用スピーカ取付構造 |
JPH07274286A (ja) * | 1994-03-31 | 1995-10-20 | Fujitsu Ten Ltd | スピーカ |
JPH11151989A (ja) * | 1997-11-25 | 1999-06-08 | Nissan Motor Co Ltd | ドアスピーカの取付構造 |
US20010002632A1 (en) * | 1999-12-01 | 2001-06-07 | Reitter & Schefenacker Gmbh & Co. Kg | Holder for a loudspeaker to be mounted in a motor vehicle and method for its manufacture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057290A (ja) * | 1983-09-08 | 1985-04-03 | 財団法人電力中央研究所 | タンク型高速増殖炉 |
-
2001
- 2001-08-23 JP JP2001252787A patent/JP2003063316A/ja active Pending
-
2002
- 2002-08-08 DE DE10293963T patent/DE10293963T5/de not_active Withdrawn
- 2002-08-08 WO PCT/JP2002/008109 patent/WO2003018365A1/ja active Application Filing
- 2002-08-08 GB GB0308597A patent/GB2383711B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0193895U (ja) * | 1987-12-15 | 1989-06-20 | ||
US5133428A (en) * | 1991-04-04 | 1992-07-28 | Perrson John K | Direction-adjustable speaker system |
JPH05553U (ja) * | 1991-06-21 | 1993-01-08 | オンキヨー株式会社 | 車両用スピーカ装置 |
JPH05116570A (ja) * | 1991-10-30 | 1993-05-14 | Toyota Autom Loom Works Ltd | 車両用スピーカ取付構造 |
JPH07274286A (ja) * | 1994-03-31 | 1995-10-20 | Fujitsu Ten Ltd | スピーカ |
JPH11151989A (ja) * | 1997-11-25 | 1999-06-08 | Nissan Motor Co Ltd | ドアスピーカの取付構造 |
US20010002632A1 (en) * | 1999-12-01 | 2001-06-07 | Reitter & Schefenacker Gmbh & Co. Kg | Holder for a loudspeaker to be mounted in a motor vehicle and method for its manufacture |
Also Published As
Publication number | Publication date |
---|---|
JP2003063316A (ja) | 2003-03-05 |
DE10293963T5 (de) | 2004-07-22 |
GB2383711B (en) | 2005-03-09 |
GB2383711A (en) | 2003-07-02 |
GB0308597D0 (en) | 2003-05-21 |
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