WO2000034679A1 - Amortisseur rotatif - Google Patents
Amortisseur rotatif Download PDFInfo
- Publication number
- WO2000034679A1 WO2000034679A1 PCT/JP1999/006674 JP9906674W WO0034679A1 WO 2000034679 A1 WO2000034679 A1 WO 2000034679A1 JP 9906674 W JP9906674 W JP 9906674W WO 0034679 A1 WO0034679 A1 WO 0034679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casing
- shaft
- cylindrical shaft
- movable shaft
- arc
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/12—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together
- F16F7/06—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together in a direction perpendicular or inclined to the axis of rotation
Definitions
- the present invention relates to an improvement of a mouth-to-door damper that can be used as a shock absorber by applying a damper torque to a rotating body such as a door when a door or a toilet lid is rotated down.
- Fig. 7 shows an example of this type of Rho-Yu damper that has already been proposed as Japanese Utility Model Publication No. 62-81739.
- the roof cover damper A is connected to the cover b via the joint d. Attempts to prevent loudspeaker noise and vibration from occurring at the final closing point of keyboard cover b, and to attempt to drop it smoothly and moderately quickly.
- the movable damper A has a movable shaft h loosely fitted in a hollow portion having a casing e and an inner peripheral inner surface f thereof, and the shaft end portion thereof. i is projected from the opening j of the casing e, and the 0-rings kl and k2 engaged with the movable shaft h are pressed against the inner circumferential surface f, thereby forming a gap between the inner circumferential surface f and the movable shaft h.
- the viscous fluid m is hermetically sealed, and the locking ends q 1 and q 2 of the torsion bar spring p inserted into the air core n of the movable shaft h are respectively connected to the projection i of the movable shaft h and the casing e. It is designed to be locked to the lid r.
- a cylindrical shape is formed based on a polymer viscous fluid such as polysoptin or other viscous fluid sealed in a liquid-tight manner between the inner circumferential surface f and the movable portion h.
- the viscous shear resistance generated by the rotation of the shaft h is used as the damper force.
- the damper torque acts when the cover b is closed, but the same viscous shear resistance acts when the cover b is opened.
- claim 1 in view of the above-mentioned conventional problems, in claim 1, it can be constituted only by the casing and the movable shaft, and the cylindrical shaft portion of the movable shaft is gradually changed from the arc-shaped non-elastic portion.
- An eccentric elastic portion is formed so as to have a larger diameter than the inner peripheral surface of the casing so as to protrude toward the outer peripheral side, whereby the outer peripheral surface of the eccentric elastic portion slides on the inner circumferential surface. It is designed to be elastically contacted.
- the mouth-to-mouth relief damper according to claim 1 of the present invention is provided with a casing and a hollow portion formed by a circumferential inner surface thereof, which is rotatably and loosely fitted in a locking state.
- a movable shaft composed of a cylindrical shaft portion provided and a shaft end portion connected to the cylindrical shaft portion and protruding from an opening of the casing, wherein the cylindrical shaft portion of the movable shaft is An arc-shaped inelastic portion formed from one side peripheral edge to the other side free edge; and the casing from the arc-shaped non-elastic portion to the other side free edge.
- the eccentric elastic portion is formed so as to gradually increase the eccentricity to be larger than the radius of curvature of the inner circumferential surface, so as to elastically contact the inner circumferential surface.
- the eccentric elastic portion is formed such that the axial slit and the radial slit communicate with the cylindrical shaft portion of the movable shaft in an orthogonal manner. In this way, by configuring the eccentric elastic portion to extend from the arc-shaped inelastic portion, it is possible to achieve the object according to claim 1 with higher reliability. I have.
- the casing, the cylindrical shaft portion rotatably and loosely fitted in the hollow portion formed by the inner circumferential surface of the casing, and the cylindrical shaft portion are connected to the cylindrical shaft portion.
- a movable shaft comprising a shaft end protruding from an opening of the casing, wherein the cylindrical shaft of the movable shaft has an open end formed on the side of the lid of the casing, and the cylindrical shaft has The one side peripheral edge and the other side free edge formed apart by the provided axial slit are formed, and are connected to the above-mentioned axial slit in a direction orthogonal to the axial slit near the axial end of the cylindrical shaft part.
- an arc-shaped inelastic portion formed from the one peripheral edge to the base edge of the radial slit, and the arc-shaped inelastic portion from the other peripheral free edge Gradual eccentricity toward the edge from the radius of curvature of the inner circumferential surface of the casing
- the viscous fluid is sealed in the hollow part of the casing by using a zero ring for sealing.
- the damper torque based on the eccentric elastic part of the viscous fluid contribute the shear resistance of the viscous fluid as a damping force to increase the total damper torque, but also the viscous fluid allows the eccentricity between the inner circumference of the casing and
- the viscous fluid is also injected into the gaps between the elastic parts, so that it not only acts as a damper but also plays a role as a lubricant, which enables smooth rotation of the movable shaft and improved durability.
- the purpose is to try.
- the mouth-to-mouth damper according to claim 3 further includes a seal provided between the shaft end of the movable shaft and a circumferential inner surface of the casing in the hollow portion of the casing.
- the content is that the viscous fluid blocked by the O-ring is contained.
- the mouth damper according to claim 4 is different from the structure according to claim 1 in that the hollow portion in the casing is provided so as to protrude from the closed lid portion of the casing and has a cylindrical shape of the movable shaft.
- a shaft mandrel with a slightly smaller diameter than the inner peripheral surface of the shaft is provided, and is closed by a sealing O-ring provided between the shaft end of the movable shaft and the inner peripheral inner surface of the casing.
- a viscous fluid is contained between the shaft mandrel and the inner circumferential surface of the casing.
- the end portions of the springs of the transmission bar spring or the coil spring housed in the hollow portion of the casing are respectively provided.
- the damper torque of the torsion bar spring or the coil spring is added, and a sufficiently large total In order to obtain the full force of the damper, to allow the heavy doors to be closed slowly, and to easily open the heavy doors by the restoring force of the spring when the heavy doors are opened. Its purpose is to make it usable for various purposes.
- the mouth damper according to claim 5 further includes a torsion bar spring or a coil housed in the hollow portion of the casing between the casing and the movable shaft. It is characterized in that each spring end of the spring is fixed.
- the roadside damper according to claim 6 has the configuration contents of claim 1, claim 3, and claim 4 described above. Therefore the row
- the Yuri damper has an eccentric elastic part, a viscous fluid, and a torsion bar spring or coil spring.
- the mouth damper according to claim 7 is different from the structure according to claim 4 in that it further relates to the transition bar spring or the coil spring, and one end of the spring is fixed to the casing. At the same time, the other end of the spring is located on the cylindrical shaft of the movable shaft, and is inserted between the one side edge and the other side free edge to form the other side free edge.
- the content is that they are in contact with people.
- the roller damper according to claim 8 uses the spring end as described in claim 6 above to suppress the other circumferential free edge, thereby avoiding the occurrence of cleaving.
- an elastic body such as a coil spring is prepared separately, and this is interposed between the other peripheral free edge and the one peripheral edge, so that the elastic force due to the eccentric elastic part based on the cleaving is provided.
- the damper torque based on the eccentric elastic portion has a simple configuration without using additional members. So that it can be enhanced.
- the roller damper according to claim 9 has the same configuration as in claim 1, except that a notch opened in one peripheral edge of the cylindrical shaft portion and notched in the arc-shaped inelastic portion is provided.
- the mouth was continuously formed in the axial direction, and the inner circumferential surface of the casing was curved so as to gradually project toward the other end free peripheral edge so as to fit into the above-mentioned cutout.
- An inner diameter protrusion is formed, and the eccentric elastic part of the cylindrical shaft part reaches the inner diameter protrusion part by rotation of the movable shaft, whereby the eccentric elastic part gradually becomes the center of the hollow part.
- the content is that they were suppressed to the side.
- FIG. 1A and 1B show a roller damper according to claims 1 to 3 and claims 5 to 7 according to the present invention, wherein FIG. 1A is a longitudinal sectional front view thereof, and FIG. 1B is a perspective view of a movable shaft as one member.
- (C) is a cross-sectional view taken along line C-C of (A).
- FIG. 2 is a vertical cross-sectional front view showing a low-speed ring damper according to claims 1 and 2.
- FIG. 3 is a cross-sectional front view showing a roadside damper according to claim 4.
- Fig. 4 (A) is a cross-sectional view of the rotary damper showing a state in which the eccentric elastic portion is deformed by creep according to claim 8, and
- Fig. 4 (B) is a cross-sectional view when an elastic body is interposed in the rotary damper.
- FIG. 5 is a cross-sectional view showing the casing of the mouth-to-mouth relief damper according to claim 9.
- FIG. 6 (A) is a perspective view showing the movable shaft of the mouth-to-mouth damper according to claim 9, and Fig. 6 (B) is a cross-sectional view of the rotary damper in an open state, and Fig. 6 (C).
- FIG. 2 is a cross-sectional view of the same in the closed state.
- FIG. 7A is a perspective view showing a conventional rotary damper in a used state
- FIG. 7B is a longitudinal sectional front view of the rotary damper.
- FIG. 1 shows the mouth damper according to claims 1 and 2 of the present invention. Refer to and explain.
- the mouth damper according to claims 1 and 2 comprises a casing 1 and a movable shaft 2.
- the casing 1 is preferably fixed at a predetermined position, and the movable shaft 2 is preferably connected to a door or a toilet seat, etc., but, of course, the movable shaft 2 is fixed and the casing 1 is rotated by opening the door or the like. You may make it.
- the casing 1 has a hollow portion 1b formed by a circumferential inner surface 1a, and an opening 1d is formed on a side opposite to the closed portion 1c.
- the movable shaft 2 is freely rotatable around the hollow portion 1b of the casing 1 and is loosely fitted by the retaining edge 1e of the casing 1 so that it cannot be pulled out. It comprises a portion 2a and a shaft end 2b which is connected to the cylindrical shaft portion 2a and protrudes from the opening 1d of the casing 1.
- the cylindrical shaft portion 2a of the movable shaft 2 is formed with an arc-shaped inelastic portion 2e from the one peripheral edge 2c to the other peripheral free edge 2d.
- An eccentric elastic portion 2f extends from the arc-shaped non-elastic portion 2e toward the other peripheral free edge 2d described above. At this time, the eccentric elastic portion 2f is formed such that the amount of eccentricity gradually becomes larger than the radius of curvature of the inner circumferential surface 1a in the casing 1.
- the eccentric elastic portion 2f is bent so as to gradually project outward from the arc-shaped inelastic portion 2e toward the other peripheral free edge 2d.
- the movable shaft 2 is pushed into the hollow portion 1b of the casing 1 by pushing the eccentric elastic portion 2f from the outside, and then the opening 1d of the casing 1 is bent.
- the movable shaft 2 is kept in a state of being retained from the casing 1, and thus the eccentric elastic portion 2 f is positioned with respect to the inner circumferential surface 1 a of the casing 1.
- due to its resilience it is in a close state.
- various means or configurations can be considered to form the arc-shaped inelastic portion 2e and the eccentric elastic portion 2f as described above.
- the cylindrical shaft portion 2a is located on the lid 1c side of the casing 1 and an opening end port 2g is opened, and the cylindrical shaft portion 2a is By forming an axial slit 2 h apart from the shaft end 2 b to reach the opening end opening 2 g, the one peripheral edge 2 c and the other peripheral free edge 2 d are separated from each other. Form a separation.
- a radial slit 2 i is formed near the shaft end 2 b of the cylindrical shaft portion 2 a in the same manner as the above-mentioned axial slit 2 h so as to be orthogonal to the axial slit 2 h.
- An arc-shaped inelastic portion 2e extends from the edge 2c to the proximal edge 2j of the radial slit 2i, and an eccentric elastic portion extends from the proximal edge 2j to the other circumferential free edge 2d. It is formed as 2 f.
- the eccentric elastic portion 2f is in contact with the inner circumferential surface 1a of the casing 1 as shown in FIG. 1 (C). Therefore, if the movable shaft 2 is now rotated in the direction of the arrow R1 (clockwise) together with the rotation of the door or the like, the outer peripheral surface of the other free peripheral edge 2d has the outer peripheral surface. It turns with a considerably large frictional force with the inner circumferential surface la, and therefore, a large damper torque can be generated with respect to the turning of the movable shaft 2. Can be closed slowly to complete the door closing motion without any unintended impact.
- the mouth damper according to claim 3 utilizes the above-mentioned shear resistance based on a viscous fluid.
- the hollow portion 1b of the casing 1 is closed by a sealing ring 2k provided between the shaft end 2b of the movable shaft 2 and the inner circumferential surface 1a of the casing 1.
- a sealing ring 2k provided between the shaft end 2b of the movable shaft 2 and the inner circumferential surface 1a of the casing 1.
- a groove 2 m is provided around the shaft end 2 b in the casing 1, and the above-mentioned O-ring for sealing is fitted in the groove 2 m.
- the shear resistance due to the viscous fluid is added to the damper torque due to the eccentric elastic portion 2f, so that not only the greater damper torque can be exerted, but also the eccentricity between the inner circumferential surface 1a of the casing 1 and the eccentricity. Also between the elastic part 2 f The viscous fluid is injected, and the viscous fluid not only strengthens the damper but also acts as a lubricant, so that the movable shaft 2 is guaranteed to rotate smoothly and has high durability. could be improved.
- the shaft mandrel 1f is slightly thinner than the inner peripheral surface of the cylindrical shaft portion 2a of the movable shaft 2 as clearly shown in FIG. It is formed thick to have a diameter. Therefore, the viscous fluid enclosed by the sealing O-ring 2k not only reduces the amount of the contained fluid, but also reduces the gap between the shaft mandrel If and the cylindrical shaft portion 2a. Viscous shear resistance can also be greatly enhanced.
- a torsion bar spring (not shown) or a coil spring 3 (not shown) is added to the structure of claim 1 as understood from FIG.
- the spring ends 3 a and 3 b of the torsion spring or coil spring 3 housed in 1 b are respectively connected to the lid 1 c of the casing 1 and the shaft end 2 b of the movable shaft 2.
- a coil spring is fitted on the shaft 1f. Therefore, in the above configuration, the damper torque due to the elasticity of the eccentric elastic portion 2f and the elasticity due to the torsion bar spring or the coil spring 3 are added, and the door is gradually closed even for a considerably heavy door. And the heavy door can be easily opened by the spring restoring force.
- the eccentric elastic portion 2f according to claim 1 is elastically contacted with the inner circumferential surface 1a, and the viscous fluid of claim 3 is used.
- all the components that incorporate a torsion bar spring or coil spring 3 are provided, and the effects based on the above three components can be comprehensively adapted to the intended use. By using it appropriately and effectively, The required purpose can be satisfied.
- the torsion bar spring or the spring end 3b of the coil spring 3 is not locked to the shaft end 2b as shown in FIG.
- the spring end 3b is located on the cylindrical shaft portion 2a of the movable shaft 2 and is inserted between the one peripheral edge 2c and the other peripheral free edge 2d, so that It is configured to be in elastic contact with the other side free edge 2d.
- the inner peripheral inner surface 1 a of the casing 1 is formed to have only a uniform diameter. Instead, as described in detail below, an inner diameter projection 1 g is protruded at a part of the part. That is, first, as shown in FIG. 6 (A), the cylindrical shaft portion 2a is opened on one side peripheral edge 2c, and the arc-shaped inelastic portion 2e is cut into the cutout 2p. Therefore, the cut 2p is connected to the axial slit 2h.
- the inner peripheral surface 1a of the casing 1 is oriented in the direction of the other free edge 2d so as to fit into the cut 2p.
- the inner diameter projection 1 g is formed so as to gradually bend toward the axial center toward. In the state as shown in FIG. 6 (B), the inner diameter projection 1 g is fitted into the above-mentioned cutout 2 p, but as shown in FIG.
- the eccentric elastic portion 2 f reaches the position of the inner diameter protrusion 1 g by rotating in one direction, the eccentric elastic portion 2 f is gradually pressed toward the axial center side of the hollow portion 1 b.
- the damper torque based on the eccentric elastic portion 2f can be increased with a simpler configuration than in the case of claim 1.
- the row-and-rolly damper according to the present invention can be configured as described above. Therefore, according to Claim 1, even if a viscous fluid is not used, the two components of the casing and the movable shaft use the frictional force between the eccentric elastic portion of the movable shaft and the casing to cause a large friction when rotating in one direction. Force, and only a small frictional force can be generated for rotation in the opposite direction.Therefore, fewer parts and higher precision are required compared to a mouth damper using viscous fluid. It is possible to provide a product with uniform characteristics at low cost without requiring processing.
- the eccentric elastic portion is formed by connecting the axial slit and the radial slit to the cylindrical shaft portion, the reliability of the effect according to claim 1 is reduced. Can be further improved.
- the viscous shear resistance of the viscous fluid can be used in the configuration of claim 1, not only can the additive damper torque be exerted, but also the viscous fluid can be eccentric. It can be used as a lubricant between the elastic body and the inner circumference of the casing. This can contribute to smooth operation and improved durability.
- the shaft is protruded from the casing in the above-mentioned Claim 3, and is formed thick, and is used by approaching the inner peripheral surface of the cylindrical shaft portion.
- the amount of viscous fluid can be reduced, and the viscous shear resistance is enhanced, so that sufficient damper force can be exhibited.
- a damper torque by a torsion bar spring or a coil spring is added, so that the closing motion of the heavy door can be appropriately braked, At the time of opening the door, it can be operated with a light force, so it can respond to various requests.
- Claim 6 incorporates the viscous fluid according to Claims 3 and 5 and also the torsion bar spring or coil spring against Claim 1, so that the total damper torque In addition, it is possible to meet various demands.
- the spring end which is one of the torsion bar spring or the coil spring is elastically contacted with the free edge on the other side without being limited to the structure of claim 5, the movable shaft Even if it is made of synthetic resin, it can be prevented from being deformed by creep and reducing the contact force on the inner circumferential surface of the eccentric elastic part. A predetermined value of one torque can be held.
- a relatively small elastic body separately provided without using a torsion bar spring or a coil spring as in claim 7 is provided between the free edge on the other side and the peripheral edge on one side.
- the effect equivalent to claim 7 can be exerted only by interposing.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Dampers (AREA)
- Toilet Supplies (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99973320A EP1054181A1 (en) | 1998-12-07 | 1999-11-30 | Rotary damper |
US09/601,312 US6336252B1 (en) | 1998-12-07 | 1999-11-30 | Rotary damper |
HK01104694A HK1034305A1 (en) | 1998-12-07 | 2001-07-09 | Rotary damper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/346770 | 1998-12-07 | ||
JP10346770A JP2000170813A (ja) | 1998-12-07 | 1998-12-07 | ロータリーダンパー |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000034679A1 true WO2000034679A1 (fr) | 2000-06-15 |
Family
ID=18385709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/006674 WO2000034679A1 (fr) | 1998-12-07 | 1999-11-30 | Amortisseur rotatif |
Country Status (6)
Country | Link |
---|---|
US (1) | US6336252B1 (ja) |
EP (1) | EP1054181A1 (ja) |
JP (1) | JP2000170813A (ja) |
CN (1) | CN1105837C (ja) |
HK (1) | HK1034305A1 (ja) |
WO (1) | WO2000034679A1 (ja) |
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CN109667871B (zh) * | 2018-11-16 | 2020-10-30 | 张胜利 | 可穿戴的康复器的阻尼器 |
US11564538B2 (en) | 2019-10-21 | 2023-01-31 | Bemis Manufacturing Company | Hinge post for toilet seat |
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US5142738A (en) * | 1990-07-24 | 1992-09-01 | Nhk Spring Co., Ltd. | Hinge device |
JPH058075U (ja) * | 1991-07-16 | 1993-02-02 | 加藤発条株式会社 | 回転式オイルダンパー |
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- 1998-12-07 JP JP10346770A patent/JP2000170813A/ja active Pending
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1999
- 1999-11-30 EP EP99973320A patent/EP1054181A1/en not_active Withdrawn
- 1999-11-30 CN CN99801641A patent/CN1105837C/zh not_active Expired - Fee Related
- 1999-11-30 WO PCT/JP1999/006674 patent/WO2000034679A1/ja not_active Application Discontinuation
- 1999-11-30 US US09/601,312 patent/US6336252B1/en not_active Expired - Fee Related
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2001
- 2001-07-09 HK HK01104694A patent/HK1034305A1/xx not_active IP Right Cessation
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FR1328493A (fr) * | 1962-04-19 | 1963-05-31 | Citroen Sa Andre | Amortisseur à friction |
JPS528768U (ja) * | 1975-07-07 | 1977-01-21 | ||
JPS6281739U (ja) * | 1985-11-06 | 1987-05-25 | ||
FR2643433A1 (fr) * | 1989-02-23 | 1990-08-24 | Pflieger Roger | Dispositif de reglage de la friction entre des pieces mecaniques en contact dans des appareils a mouvement fluide |
US5142738A (en) * | 1990-07-24 | 1992-09-01 | Nhk Spring Co., Ltd. | Hinge device |
JPH058075U (ja) * | 1991-07-16 | 1993-02-02 | 加藤発条株式会社 | 回転式オイルダンパー |
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GB2438766A (en) * | 2003-12-19 | 2007-12-05 | Lg Electronics Inc | Home-bar opening/closing device for refrigerator |
US7360278B2 (en) | 2003-12-19 | 2008-04-22 | Lg Electronics Inc. | Home-bar door opening/closing device for refrigerator |
GB2438766B (en) * | 2003-12-19 | 2008-08-27 | Lg Electronics Inc | Home-bar door opening/closing device for refridgerator |
Also Published As
Publication number | Publication date |
---|---|
JP2000170813A (ja) | 2000-06-23 |
CN1286745A (zh) | 2001-03-07 |
EP1054181A1 (en) | 2000-11-22 |
CN1105837C (zh) | 2003-04-16 |
HK1034305A1 (en) | 2001-10-19 |
US6336252B1 (en) | 2002-01-08 |
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