CN1485564A - Medium testing fixtutre for PDP-plate - Google Patents
Medium testing fixtutre for PDP-plate Download PDFInfo
- Publication number
- CN1485564A CN1485564A CNA031549292A CN03154929A CN1485564A CN 1485564 A CN1485564 A CN 1485564A CN A031549292 A CNA031549292 A CN A031549292A CN 03154929 A CN03154929 A CN 03154929A CN 1485564 A CN1485564 A CN 1485564A
- Authority
- CN
- China
- Prior art keywords
- core
- flexible hose
- spiral chute
- conductor
- tube wall
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/248—Parts, details or accessories of hoses or pipes
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
- F16L11/127—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The reinforcing core material 20 is formed to have a nearly recessed shape cross section by a strip part 21 facing the bottom part of the spiral groove 10 of the tube wall 6 and a pair of side plate parts 22 and 22 standing from both ends along the longitudinal direction of the strip part 21. Tip parts of the side plate parts 22 and 22 of the reinforcing core material 20 are adhered or fused for adhesion to the spiral groove 10 to reduce the adhesion area or fusing area of the reinforcing core material 20 so that the reinforcing core material 20 can be easily peeled from the tube wall 6.
Description
Technical field
The present invention relates to a kind of flexible hose that for example is used on dust collector hose that electric dust collector uses etc.
Background technique
As the electric dust collector dust collector hose, have a kind ofly by the enhancing core of the hard resin system of bag lead in the bonding or thermal fusion welding of shape in the shape of a spiral on soft synthetic resin tubulation wall, and give the flexibility of its appropriateness and the structure of shape keeping.
This dust collector hose is installed between the operation tube and main body of dust collector with suction nozzle.And its lead is connected with operation tube side and main body of dust collector side, is used for sending electrical signal or being located at the electric power supply that the rotary brush on the suction nozzle is used as driving from operation tube side direction main body of dust collector side for the power supply of opening-closes the operation main body of dust collector.
In the above-mentioned dust collector hose by enhancing core guardwire, when connecting this lead, the end that divests the enhancing core from tube wall is to take out lead.But, will strengthen the bonding securely or thermal fusion welding of core on tube wall, be difficult to peel in a lot of situations, the wiring operation is very loaded down with trivial details.
At this, for example, it is disclosed to open the 2002-81582 communique as the spy, has proposed a kind of hole or groove, projection etc. of forming on the bonding plane that strengthens core, reduce bond area, so that can divest the flexible pipe that strengthens core easily from tube wall for the tube wall that strengthens core.
But, as the accompanying drawing of above-mentioned communique is put down in writing, in the time of on will strengthening the outer circumferential face that core is bonded in tube wall,, then soft tube wall is pulled to interior side if attract and make and become negative pressure in the flexible pipe by air.And the enhancing core of hard is resisted it, to strengthening the bigger peel force of core effect.Though thereby reduce to strengthen the bond area of core, alleviating peel force, even at least also must guarantee to act on repeatedly the peeling strength that such peel force that is attracted to produce by air is not peeled yet.
On the other hand, in the time of on will strengthening the inner peripheral surface that core is bonded in tube wall, if attract and become negative pressure in the flexible pipe by air, then will soft tube wall drawing inwardly the side be pressed against and strengthen on the core, so be not easy to produce bad phenomenon in the time of will strengthening on the outer circumferential face that core is bonded in tube wall.But, because becoming, tube wall do not have concavo-convex flat state, so it is big from the inner peripheral surface inward direction protrusion of tube wall to strengthen core, the air of attraction and enhancing core head-on crash are to strengthening the bigger peel force of core effect.Even thereby in this case also must be, set the bond area that strengthens core while the peeling strength of guaranteeing above-mentioned degree.
Summary of the invention
The present invention is for eliminating above-mentioned bad phenomenon, and its purpose is to provide a kind of can fully alleviate the peel force that strengthens core, take out the flexible hose of various superior performances such as conductor and insulating properties and durability simply.
In order to address the above problem, flexible hose of the present invention, it is inner peripheral surface formation spiral chute along the synthetic resin pipe wall, conductor is set and for this conductor being enclosed in the above-mentioned spiral chute and will strengthen the bonding or flexible pipe of welding in above-mentioned spiral chute of core along this spiral chute, it is characterized in that: above-mentioned enhancing core, by relative with above-mentioned spiral fluted groove bottom to band plate portion, with the pair of side plates portion that erects from two ends and form the cross section that is roughly spill along the length direction of this band plate portion, the fore-end of above-mentioned pair of side plates portion, by bonding or welding in above-mentioned spiral chute.
Specifically, above-mentioned enhancing core is made by hard resin, and above-mentioned conductor is formed by plastic crust covered electric cable.In addition, by above-mentioned spiral chute and enhancing core conductor surrounded containing space, be formed the liquid sealing space that stops fluid to immerse.
And, in the band plate portion of above-mentioned enhancing core, protrude be provided with by with above-mentioned spiral chute with strengthen core conductor surrounded containing space, partly or the fin that integrally separates.
In addition, the band plate portion of above-mentioned enhancing core constitutes the part of the flexible pipe inner peripheral surface of general planar.And, between the side plate of the inner peripheral surface of above-mentioned tube wall and above-mentioned enhancing core, guarantee gapped.And then, at the outer circumferential face of above-mentioned synthetic resin pipe wall, the hard layer that has wear resistance along above-mentioned spiral chute setting, on this hard layer, implement to be used to cover, can't see the painted of described conductor from the flexible pipe outside.
And the flexible hose of said structure uses as the dust collector hose of electric dust collector.
Description of drawings
Fig. 1 is the amplification view of major component of the dust collector hose of one embodiment of the invention.
Fig. 2 is the side view of expression electric dust collector.
Fig. 3 is the side view of the partly cut-away of dust collector hose.
Fig. 4 is the same tube wall amplification view partly.
Fig. 5 is the side view of the same connection connecting cylinder state of expression.
Fig. 6 is the tube wall amplification view partly of another embodiment's dust collector hose.
Fig. 7 is the major component amplification view of the dust collector hose behind the cancellation hard layer.
Fig. 8 is the major component amplification view of the dust collector hose behind cancellation hard layer and the fin.
Fig. 9 is the major component amplification view that 2 conductors is housed in 1 dust collector hose in the containing space.
Among the figure: 5-dust collector hose (flexible hose), 6-tube wall, 10-spiral chute, 11,45-conductor, 12-electric wire, 13-crust, 20-enhancing core, 21-band plate portion, 22-side plate, 23-conductor containing space, 25-fin, 26-gap, 30-hard layer.
Embodiment
Below, based on accompanying drawing one embodiment of the invention are described in detail.The flexible hose of one embodiment of the invention as shown in Figure 2, in electric dust collector 1, has dust collector hose 5 uses of operation tube 3 with the main body of dust collector 4 of suction nozzle 2 as connection.Especially can be used as the wet type suction cleaners flexible pipe use that is used to attract liquid such as water.
The tube wall 6 of dust collector hose 5, shape for example twines by the soft synthetic resin material of the soft synthetic resin material of dechlorination vinyl, polyvinyl chloride-base or sneak into the resin strip that the material of rubber etc. constitutes in these material in the shape of a spiral, and overlaps bonding or the coincidence welding between the side edge part with the resin strip of front and the resin strip of back.
This tube wall 6, for can Visual Confirmation circulation status by the fluid of inside be transparent or semitransparent.And tube wall 6 also can be not necessarily transparent or semitransparent, also can carry out painted in order not see inside.
In addition, this tube wall 6 every to opening proper spacing, outwards giving prominence to 2 spiral helicine protuberances 7,7 of formation, is the recess 8,8 that concaves along rectangular between these protuberances 7,7 as shown in Figures 3 and 4.
And the inboard of protuberance 7,7 is set as the roughly spiral chute 10,10 of U font of cross section.That is,, form 2 spiral chutes 10,10 around the mode of interior all 1 circumference of tube wall 6 to rotate 1 circle along the inner peripheral surface of tube wall 6.
In addition, spiral chute 10,10 is not only limited to 2, can and be more than 1 or 3 according to the number of increase and decrease protuberance 7,7 yet.In addition, can the inboard of protuberance 7,7 be made as spiral chute 10,10 yet, and be provided with tube wall 6 thicker, and directly carry out groove processing within it on the side face and wait and form.And the shape of spiral chute 10,10 is not only limited to the cross section and roughly is the U font, for example can be that the cross section roughly is the コ font or the cross section roughly is in the shape of the letter V yet.
And, along above-mentioned spiral chute 10,10 conductor 11,11 is set in the shape of a spiral respectively shape.In addition, for these conductors 11,11 are enclosed in spiral chutes 10,10, and enhancing core 20,20 is set in the shape of a spiral shape respectively along spiral chute 10,10.And conductor 11,11 is not only limited to 2, also can be consistent with the number of spiral chute 10,10 be more than 1 or 3.
And, the fore-end of pair of side plates portion 22,22, by thermal fusion welding on spiral chute 10, with this, by the spiral chute 10 of tube wall 6 with have the conductor containing space 23 that the enhancing core 20 of insulating properties surrounds equally with insulating properties.This conductor containing space 23 is configured to the complete closed state, becomes the liquid seal space of the immersion that stops fluid.Thereby, like this, in the good containing space 23 of insulating properties and the close property of liquid, further accommodating the electric wire 12,12 that crust 13 with insulating properties coats, can prevent electric leakage reliably with this, even also can use safely as the wet type suction cleaners flexible pipe.
In addition, the substantial middle place in band plate portion 21 is for spaced conductors containing space 23 partly and one is protruded and is provided with the fin 25 that strengthens usefulness, so that improve the shape keeping of flexible pipe more.And, so that the mode in the groove 14 of these fin 25 embedded conductors 11 is accommodated conductor 11 in containing space 23.
And, at the inner peripheral surface of tube wall 6 and strengthen between the side plate 22,22 of core 20, specifically between the outer side surface of the sidewall rim portion 15,15 of spiral chute 10 and side plate 22,22, guarantee that the bending of being easy to is arranged, be easy to the gap 26,26 of drawing tube wall 6 usefulness, and constitute flexible good dust collector hose 5.
And then, with above-mentioned enhancing core 20, with in the income spiral chute 10 or the state that exposes a little in the spiral chute 10 of band plate portion 21 be provided with, band plate portion 21 constitutes the part of the flexible pipe inner peripheral surface of general planar.Thereby reduce the resistance when flexible pipe inner attraction air or water or other fluid, can improve attraction efficient.
In addition, at the outer circumferential face of tube wall 6, along protuberance 7,7, be that spiral chute 10,10 hot melts are connected to the hard layer 30,30 with wear resistance.This hard layer 30,30, for example make by the hard resin material or the polyvinyl chloride-base hard resin material of dechlorination vinyl, to the conductor 11 in the spiral chute 10,10 that is housed in tube wall 6, for example blueness that is used to cover in order not see from the outside etc. are painted.
Below, the manufacture method of above-mentioned dust collector hose 5 is described.At first, strengthen cores 20,20 with 2 and get and do one group, guarantee regulation the interval, and before the interval of coiling and back coiling guarantee the state coiled at the interval of stipulating too.
Then, conductor 11,11 is spirally wrapped around on the enhancing core 20,20 to the mode in its groove 14,14 to embed the fin 25,25 that strengthens core 20,20.Like this, utilize the guiding of fin 25,25, make conductor 11 be difficult for producing crooked or distortion, can realize stable wiring as conductor 11,11.
And, with the mode of coating conductor 11,11 in the shape of a spiral shape twine horizontal wide tube wall formation soft resin band with roughly 2 the spacings parts that are equivalent to strengthen core 20,20.And when carrying out this winding, in the part of coating conductor 11,11, overlap between the end edge portion of the bonding or resin strip that overlaps the welding front and the resin strip of back, the tube wall 6 of conductor 11,11 and splicing thread 20,20 is accommodated in formation in spiral chute 10,10.And,, twine the hard layer 30,30 of hard in shape ground in the shape of a spiral along protuberance 7,7 at the outer circumferential face of this tube wall 6.
At this moment, heat by enhancing core 20,20, resin strip and the hard layer 30,30 extruded from the synthetic resin extruder, the side plate 22,22 of core 20,20 will be strengthened ... the fore-end thermal fusion welding in spiral chute 10, and with the outer circumferential face of hard layer 30,30 thermal fusion weldings at tube wall 6.In addition, except the thermal fusion welding of such heat when utilizing extrusion molding, also can utilize bonding material to make strong core 20,20, resin strip and hard layer 30,30 carry out bonding.
At the two ends of the dust collector hose of making like this 5, as shown in Figure 5, connection cylindrical shell 40,41 is installed.When carrying out this installation, at the two ends of flexible pipe 5, divest enhancing core 20,20 from tube wall 6 and take out conductors 11,11, its electric wire 12,12 is connected with the electric coupler 40a, the 41a that are connected cylindrical shell 40,41.At this moment, because only strengthen the side plate 22,22 of core 20,20 ... the fore-end welding on tube wall 6, its welding area is very little, so can be easy to peel strengthening spiral chute 10 parts of core 20,20 from tube wall 6.And because be provided with the hard layer 30,30 of hard along spiral chute 10,10 tube walls 6, so strengthened core at 20,20 o'clock divesting, soft tube wall 6 is not easy along peeling under the direction band, can further divest simply to strengthen core 20,20.
When using dust collector hose 5, the connection cylindrical shell 40 that one is distolateral inserts main body of dust collector 4 sides and connects, and inserts electric coupler 40a simultaneously and continues.And connection cylindrical shell that another is distolateral 41 inserts operation tube 3 sides and connects, inserts simultaneously electric coupler 41a and continue.Like this, connect main body of dust collector 4 and operation tube 3 through dust collector hose 5, and between main body of dust collector 4 and suction nozzle 2, form a series of fluid path.In addition, by lead 12,12 ... forming opening of main body of dust collector 4 one closes with the power supply of power loop and main body of dust collector 4 and is equipped in power circuit between the motor on the suction nozzle 2.
In addition, the present invention not only is defined in the foregoing description, and it is self-evident can appending multiple correction change to the foregoing description within the scope of the invention.
For example, in the foregoing description, though the tube wall 6 of flexible pipe 5, at protuberance 7,7 ... between be formed with recess 8,8 ... structure, but as shown in Figure 6, also can be at protuberance 7,7 ... between form par 42,42 ... structure.In addition, though hard layer 30,30 is set, as shown in Figure 7, also can be the structure of cancellation hard layer 30,30 at the outer circumferential face of tube wall 6.And,, as shown in Figure 8, also can not necessarily form fin though on enhancing core 20,20, be formed with fin 25,25.In addition, also the mode that whole conductor containing space 23 separates can be formed fin 25,25 on the contrary.
In addition, to coat the conductor 11 of 2 wires 12,12 by crust 13, be housed in the conductor containing space 23 in the mode that is placed on the fin 25 that strengthens core 20, but as shown in Figure 9, also can be housed in respectively in each accommodation section of the conductor containing space 23 that separates by the fin 25 that strengthens core 20 coat the conductor 45 of 1 wire 12 by crust 13.At this moment also can not bend together between the conductor 45,45 or twist together situation, can realize stable wiring.
And then flexible hose of the present invention not only can be used as the hose use that electric dust collector is used, and also can be used as suction and discharge usefulness or suction water in addition and uses with various flexible pipes such as flexible pipe and protection flexible pipes.
(invention effect)
As mentioned above as can be known: in flexible hose of the present invention, the fore-end, bonding or welding of side plate of enhancing core that the cross section is roughly spill reduces the bonding or welding area of the enhancing core of relative tube wall in the spiral chute of tube wall inner peripheral surface side.Thus, be easy to peel the enhancing core, can take out conductor simply, can successfully be electrically connected from tube wall.And, even become negative pressure in the flexible pipe, soft tube wall is pulled to interior side, can be to the enhancing core effect peel force of all sides in the tube wall yet.In addition, the air of internal flow or other fluids also not can with strengthen the core head-on crash.Thereby the peeling strength of the power that need not to keep to withstand such can fully alleviate the peel force that strengthens core.
And, because in the spiral chute of synthetic resin pipe wall, utilize the enhancing core of hard resin system to enclose conductor, so can guarantee good enhancing and electrical insulating property.Like this, also can use conductor with itself the enhancing property as the lead that constitutes by copper cash etc.And, utilize the conductor that forms by plastic crust covered electric cable, electric wire is carried out 2 layers of insulation, can further improve electrical insulating property.
In addition, by will and strengthening core institute conductor surrounded containing space as the liquid sealing space by spiral chute, the wet type flexible pipe that also can be used as the internal flow water or other fluid uses.
And, by will be partly or integrally the spaced conductors containing space fin, be formed on the band plate portion that strengthens core, and can improve the intensity that strengthens core, further improve the shape keeping of flexible pipe.And, prevent to be housed in the crooked or distortion of the conductor in the containing space, can form the high wiring of reliability.
And then, by form the part of flexible pipe inner peripheral surface by the band plate portion that strengthens core, make flexible pipe inner peripheral surface general planar, and for example reduce the resistance when the fluid of flexible pipe inner attraction air or water etc., can improve attraction efficient etc.
In addition, by at the inner peripheral surface of tube wall and strengthen between the side plate of core and guarantee the gap, and tube wall crooked or stretch and do not allow to be subject to strengthen the core influence can become flexible good flexible pipe.
And, outer circumferential face at tube wall, the hard layer that has wear resistance along the spiral chute setting, for example, when using as dust collector hose, even the situation of the flexible pipe of pulling back on the ground, because hard layer contacts with ground, directly contact or slide mutually so prevent tube wall, can improve durability with ground.And when divesting the enhancing core, soft tube wall trends towards peeling direction, but resists this trend by hard layer, and can stop, and can further divest the enhancing core simply.And, if hard layer is carried out painted,, also can cover conductor and can not see from the outside even then for example under tube wall is transparent or semitransparent situation, can eliminate " one catches flexible pipe can not get an electric shock? " the user's of this class uneasy psychology.
In addition, if the flexible pipe that flexible hose of the present invention is used as electric dust collector uses, then can form through dust collector hose and simply carry out the main body of dust collector side vacuum cleaner good with the assembling performance that is electrically connected of suction nozzle side.
Claims (10)
1. flexible hose forms spiral chute along the inner peripheral surface of synthetic resin pipe wall, along this spiral chute conductor is set, and for this conductor is enclosed in the described spiral chute, and will strengthen the bonding or welding of core in described spiral chute, it is characterized in that:
Described enhancing core, by relative with described spiral fluted groove bottom to band plate portion and the pair of side plates portion that erects from two ends along the length direction of this band plate portion form the cross section that is roughly spill, the fore-end of described pair of side plates portion by bonding or welding in described spiral chute.
2. flexible hose as claimed in claim 1 is characterized in that: described enhancing core is made by hard resin.
3. flexible hose as claimed in claim 1 or 2 is characterized in that: described conductor is formed by plastic crust covered electric cable.
4. as any described flexible hose in the claim 1～3, it is characterized in that:, be formed the liquid sealing space that stops fluid to immerse by described spiral chute and enhancing core conductor surrounded containing space.
5. as any described flexible hose in the claim 1～4, it is characterized in that: in the band plate portion of described enhancing core, protrude be provided with by described spiral chute with strengthen core conductor surrounded containing space, partly or the fin that integrally separates.
6. as any described flexible hose in the claim 1～5, it is characterized in that: the band plate portion of described enhancing core, the part of the flexible pipe inner peripheral surface of formation general planar.
7. as any described flexible hose in the claim 1～6, it is characterized in that: between the side plate of the inner peripheral surface of described tube wall and described enhancing core, guarantee gapped.
8. as any described flexible hose in the claim 1～7, it is characterized in that: at the outer circumferential face of described synthetic resin pipe wall, the hard layer that has wear resistance along described spiral chute setting.
9. flexible hose as claimed in claim 8 is characterized in that: on described hard layer, implement to be used to cover, can't see the painted of described conductor from the flexible pipe outside.
10. as any described flexible hose in the claim 1～9, it is characterized in that: the dust collector hose that this flexible hose is used as electric dust collector uses.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002246674 | 2002-08-27 | ||
| JP2002246674A JP2004084793A (en) | 2002-08-27 | 2002-08-27 | Flexible hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1485564A true CN1485564A (en) | 2004-03-31 |
Family
ID=32054509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031549292A Pending CN1485564A (en) | 2002-08-27 | 2003-08-22 | Medium testing fixtutre for PDP-plate |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004084793A (en) |
| KR (1) | KR20040018952A (en) |
| CN (1) | CN1485564A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560014C (en) * | 2004-07-16 | 2009-11-18 | 奥麦克股份公司 | The telescoping tube that is used for household electrical appliance of electric installation is housed |
| CN102365459A (en) * | 2009-03-31 | 2012-02-29 | 大金工业株式会社 | Compressor |
| CN103009354A (en) * | 2011-09-23 | 2013-04-03 | 罗伯特·博世有限公司 | Tool accessory equipment |
| CN109984663A (en) * | 2019-04-18 | 2019-07-09 | 江苏环力科技发展股份有限公司 | A kind of vacuum cleaner easy to use |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100881940B1 (en) * | 2007-10-19 | 2009-02-04 | 한경희 | Suction hose of cleaner |
-
2002
- 2002-08-27 JP JP2002246674A patent/JP2004084793A/en active Pending
-
2003
- 2003-08-22 CN CNA031549292A patent/CN1485564A/en active Pending
- 2003-08-25 KR KR1020030058624A patent/KR20040018952A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560014C (en) * | 2004-07-16 | 2009-11-18 | 奥麦克股份公司 | The telescoping tube that is used for household electrical appliance of electric installation is housed |
| CN102365459A (en) * | 2009-03-31 | 2012-02-29 | 大金工业株式会社 | Compressor |
| CN103009354A (en) * | 2011-09-23 | 2013-04-03 | 罗伯特·博世有限公司 | Tool accessory equipment |
| CN109984663A (en) * | 2019-04-18 | 2019-07-09 | 江苏环力科技发展股份有限公司 | A kind of vacuum cleaner easy to use |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004084793A (en) | 2004-03-18 |
| KR20040018952A (en) | 2004-03-04 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned | ||
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