CN104146656A - Electric cleaner - Google Patents
Electric cleaner Download PDFInfo
- Publication number
- CN104146656A CN104146656A CN201410203756.6A CN201410203756A CN104146656A CN 104146656 A CN104146656 A CN 104146656A CN 201410203756 A CN201410203756 A CN 201410203756A CN 104146656 A CN104146656 A CN 104146656A
- Authority
- CN
- China
- Prior art keywords
- disposal box
- wheel bases
- dust
- collection tank
- handle
- 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.)
- Granted
Links
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- Electric Suction Cleaners (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The present invention provides an electric cleaner which prevents dust from adhering to hands and the like, and is capable of performing dust discharge sanitarily and preventing a dust collection tank from being separated from a wheel base when dust in the dust collection tank is discharged. The electric cleaner comprises the dust collection tank having an opening on the upper surface and a hose connection part on the side surface, wherein the hose connecting part is connected with a hose, and the dust collection tank is used for storing dust sucked in through the hose connecting part; a main unit detachably connected with the opening on the upper surface of the dust collection tank, wherein a handle is arranged at the upper part of the main unit, and the main unit is provided with a suction port facing the internal of the dust collection tank, and is internally provided with an electric blower for sucking air inside the dust collection tank; a filter which is provided with an air tight seal arranged between the dust collection tank and the man unit and is used for preventing dust sucked into the dust collection tank from entering the side of the electric blower below the suction port; and a wheel base having walking wheels and a wheel base handle under the dust collection tank, wherein the dust collection tank is stuck in the wheel base with screws for clamping the dust collection tank in a manner that the dust collection tank is plugged into the wheel base in a substantially vertical direction.
Description
Technical field
The present invention relates to electric dust collector, relate in particular to electric fan and debris collection section is disposed at upper and lower, and the main unit that is built-in with electric fan is with respect to the disposal box that forms debris collection section electric dust collector removably.
Background technology
The electric dust collector of prior art, is provided with for carrying the handle of main body of dust collector on main unit top.In patent documentation 1, recorded such technology.In having the electric dust collector of such handle, user just can hold handle carrying electric dust collector without bending over.And, in order to discharge when being deposited in the dust in disposal box and main unit being unloaded from disposal box, also there is the effect that can easily control main unit.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 1-212523 communique
Summary of the invention
The problem that invention will solve
For example, the electric dust collector of recording for patent documentation 1, in order to discharge the dust being deposited in disposal box, user by main unit from disposal box unloads, disposal box need to be moved to dust and abandon place, or by holding disposal box etc., disposal box is tilted, so that the dust of disposal box inside is discharged.
Yet, the electric dust collector that patent documentation 1 is recorded is after unloading main unit, there is no the part that can easily grip, so when being deposited in dust in disposal box and discharging, need to hold disposal box upper surface open edge part or disposal box side, or walking is with making disposal box inclination near wheel etc.
In the situation that hold disposal box upper surface open edge part in order to discharge the dust of disposal box, dust may have dust and be attached on hand etc. while discharging, not health.In addition, except disposal box upper surface open portion, also hand is placed in the situation of disposal box side, due to the position that does not have to hold on, so support the hand of disposal box easily to skid, may be not easy operation.
Generally there is the electric dust collector of disposal box because control of dust volume is very large, so the weight of the disposal box after dust is piled up is very heavy.Therefore user's the hand equally likely possibility that skids becomes higher.
In addition, in the electric dust collector that patent documentation 1 is recorded, the peripheral ends of the bottom surface of disposal box and bottom, side turn down each other and form periphery folding portion at bottom surface periphery, by this periphery folding portion and be arranged at fixing with the anticreep effect between pawl in wheel bases, disposal box is arranged in wheel bases, therefore when mobile disposal box, disposal box may depart from wheel bases.
The object of the present invention is to provide a kind of electric dust collector, during dust in discharging disposal box, dust can not be attached on hand etc., can wholesomely carry out dust discharge, and can prevent disposal box and wheel bases disengaging.
The scheme of dealing with problems
The present invention proposes a kind of electric dust collector in view of above variety of issue, comprising: disposal box, and it has opening at upper surface, and side has the hose transition linking with flexible pipe, for piling up the dust sucking from described hose transition; Main unit, it releasably links with the upper surface open of described disposal box, has up handle, and has in the face of the air entry in described disposal box, in inside, is built-in with electric fan, from described air entry, sucks the air in described disposal box; Filter, it is provided with the gas-tight seal between described disposal box and described main unit, and this filter for stoping the dust that is drawn into described disposal box to intrude into described electric fan one side by described air entry below described air entry; And wheel bases, it has wheel and wheel bases handle for walking below described disposal box, and described disposal box is inserted in the direction from substantially vertical the state of described wheel bases, by disposal box, is locked and is limited to described wheel bases with screw.
In addition the present invention also provides a kind of electric dust collector, comprising: disposal box, and it has opening at upper surface, and side has the hose transition linking with flexible pipe, for piling up the dust sucking from handled described hose transition is set; Main unit, it releasably links with the upper surface open of described disposal box, has up handle, and has in the face of the air entry in described disposal box, in inside, is built-in with electric fan, from described air entry, sucks the air in described disposal box; Filter, it is provided with the gas-tight seal between described disposal box and described main unit, and this filter for stoping the dust that is drawn into described disposal box to intrude into described electric fan one side by described air entry below described air entry; And wheel bases, it has wheel and wheel bases handle for walking below described disposal box, described disposal box is inserted into the state of described wheel bases in the direction from substantially vertical, in described wheel bases handle one side, by described disposal box, locked and be limited to wheel bases with screw, handle described in this electric dust collector is disposed at roughly the same direction with the handle that is arranged at described wheel bases.
The effect of invention
The electric dust collector that the invention described above provides, during dust in discharging disposal box, dust can not be attached on hand etc., can wholesomely carry out dust discharge, and can prevent disposal box and wheel bases disengaging.
Accompanying drawing explanation
Fig. 1 is the stereoscopic figure of the electric dust collector of first embodiment of the invention.
Fig. 2 is the sectional view of the electric dust collector of first embodiment of the invention.
Fig. 3 is the stereoscopic figure of wheel bases of the electric dust collector of first embodiment of the invention.
Fig. 4 is the exploded perspective view of the electric dust collector of first embodiment of the invention.
Fig. 5 means the figure of the state when electric dust collector of first embodiment of the invention carries out dust discharge.
Fig. 6 means the disposal box of electric dust collector and the sectional view of the assembling between wheel bases of four embodiment of the invention.
Fig. 7 is the sectional view of wheel bases of the electric dust collector of four embodiment of the invention.
Fig. 8 is the stereoscopic figure of the electric dust collector of fifth embodiment of the invention.
Fig. 9 is the exploded perspective view of the electric dust collector of fifth embodiment of the invention.
Figure 10 means the figure of the state when electric dust collector of fifth embodiment of the invention carries out dust discharge.
The specific embodiment
Below use Fig. 1～Fig. 5 to describe first embodiment of the invention.Fig. 1 is the stereoscopic figure of the electric dust collector of present embodiment, Fig. 2 is the sectional view of the electric dust collector of present embodiment, Fig. 3 is the stereoscopic figure of wheel bases of the electric dust collector of present embodiment, Fig. 4 is the exploded perspective view of the electric dust collector of present embodiment, and Fig. 5 means the figure of the state when electric dust collector of present embodiment carries out dust discharge.
In Fig. 1, the 1st, hose transition, the 2nd, disposal box, the 3rd, main unit, the 10th, gas-tight seal, the 9th, walking wheel, the 6th, fixture, the 7th, wheel bases, the 4th, body shell, 8 are arranged on the wheel bases handle in wheel bases 7, and 5 are arranged on the handle in main unit 3.
Disposal box 2 is at upper surface, to have the parts of the general cylindrical shape of opening.Disposal box 2 has in side for the hose transition 1 with flexible pipe link.Main unit 3 is releasably linked to the opening of the upper surface of disposal box 2.Main unit 3 is locked by fixture 6 with disposal box 2.
Below use Fig. 2 to be elaborated to embodiment.
In Fig. 2, the 16th, air entry, the 15th, electric fan, the 19th, filter, the 18th, filter stand, the 17th, motor base (frame), the 20th, power line, the 11st, disposal box mounting groove, the 12nd, disposal box flanging part, the 13rd, hose transition locking screw, the 14th, annular gasket, the 21st, disposal box locking screw, the 23rd, wheel bases screw hole.
The dust sucking from the hose transition 1 of the side of disposal box 2 is deposited in disposal box 2.Airtight between hose transition 1 and disposal box 2 kept by annular gasket 14.
For collecting the suction force of dust by electric fan 15 acquisitions of main unit 3 inside.
Main unit 3 comprises upper shell 4, and its top has handle 5, and inside has electric fan 15.In addition, main unit 3 is being installed under the state of disposal box 2, electric fan 15, in the face of the inside of disposal box 2, is kept by motor base (frame) 17.The below of motor base (frame) 17 is provided with air entry 16, forms thus main unit 3.
In order to prevent that dust from flowing into electric fan 15, is provided with filter 19 below electric fan 15.Filter 19 is installed in filter stand 18, so that filter 19 can not be adsorbed to because of the suction force of electric fan 15 electric fan 15 1 sides.In addition, gas-tight seal 10 comprises filter stand 18 and filter 19, to keep the airtight mode between main unit 3 and disposal box 2 to arrange.
In the situation that disposal box 2 is formed by metals such as tin-free steel (tin-free steel), base plate becomes one and makes tubbiness at disposal box flanging part 12 places with cylinder plate.In this situation, disposal box flanging part 12 as one man forms on Zhou Fangxiang, but also can form disposal box 2 by resins such as ABS, and forms the position suitable with above-mentioned disposal box flanging part 12 partly.
The below of disposal box 2 is provided with the wheel 9 for walking that can make main body of dust collector move freely.Walking is arranged at wheel bases 7 with wheel 9.Disposal box 2 inserts wheel bases 7 from substantially vertical direction.
The disposal box flanging part 12 of disposal box 2 bottoms is inserted in the disposal box mounting groove 11 that is arranged at wheel bases 7.
Be used for fixedly disposal box 2 and with screw 21, be limited to wheel bases screw hole 23 with the disposal box locking of wheel bases 7.
Use Fig. 3 to further illustrate the structure of wheel bases 7 herein.
The disposal box flanging part 12 of disposal box 2 bottoms is inserted in the disposal box mounting groove 11 being arranged in wheel bases 7, locks rib 24 keep this disposal box flanging part 12 that it can be easily pulled out by wheel bases.
In addition, disposal box locks and also can arrange a plurality of with screw 21 and wheel bases screw hole 23.
With Fig. 4, the user's preparation that will do in order to be deposited in that dust in disposal box 2 is discharged is described.
First unclamp fixture 6, hold the handle 5 that is arranged at main unit 3 tops main unit 3 is unloaded from disposal box 2.Then, from disposal box 2, the gas-tight seal 10 that comprises filter 19 and filter stand 18 is unloaded, as shown in Figure 4, become the state that the dust in disposal box 2 can be discharged.
With Fig. 5, the method that user discharges the dust being deposited in disposal box 2 is described.
By gripping, be arranged on the wheel bases handle 8 in wheel bases 7, even control of dust volume is very large, the very heavy dust catcher of weight also can keep dust catcher securely, so user can easily make disposal box 2 tilt and dust is discharged.
In addition, so now can not can contact dust, wholesomely discharge dust because user grips wheel bases handle 8.
And, because disposal box 2 and wheel bases 7 are locked with screw 21 and locked by disposal box, so for the load being applied in disposal box 2 and wheel bases 7, can improve durability.
In addition, as shown in Figure 5, by the wheel bases handle 8 that is configured in hose transition 1 one sides is lifted and is carried out upward dust discharging operation, can make hose transition 1 be positioned at top, there is the effect that dust in disposal box 2 and the dust in hose transition 1 can be not unrestrained.
The second embodiment of the present invention is then described.
Roughly the same with the first embodiment except following point.
Can be with respect to the above-below direction of disposal box 2 from horizontal locking with screw 21 for disposal box shown in Fig. 2 is locked, and make wheel bases screw hole 23 be set to similarly laterally lock.
Disposal box locks and is inserted into screw 21 erection opening that is arranged at disposal box flanging part 12, is limited to wheel bases screw hole 23.
By erection opening being set at disposal box flanging part 12, without the bottom surface at disposal box 2, erection opening is set, can reduce the factor that causes disposal box 2 air-tightness to reduce.
In addition, in the situation that hole is set on the bottom surface of disposal box 2, processing jig (jig) that need to be suitable with the height of disposal box 2, and in the present embodiment, can use the processing jig of the thickness of only considering disposal box flanging part 12 to process, so can use light-weighted process equipment.
The 3rd embodiment of the present invention is then described.
Roughly the same with the first embodiment except following point.
For the disposal box shown in Fig. 2 is locked, with screw 21, can towards outside, lock from the central side of disposal box 2, and make wheel bases screw hole 23 central side setting towards disposal box 2 from outside, lock.
Disposal box locks and is inserted into screw 21 erection opening that is arranged at disposal box flanging part 12, is limited to wheel bases screw hole 23.
By locking from the central side of disposal box 2, disposal box locks and there will not be in appearance with screw 21, has advantages of and can improve design.
Then use Fig. 6, Fig. 7 to describe four embodiment of the invention.
Roughly the same with the first embodiment except following point.
In Fig. 6, for being locked, disposal box can towards outside, lock from the central side of disposal box 2 with screw 21, and make wheel bases screw hole 23 central side setting towards disposal box 2 from outside, and, wheel bases screw hole 23 is arranged to disposal box locks to tilt upward with respect to floor with the leading section of screw 21.
By present embodiment, disposal box 2 is being fixed in the manufacturing process of wheel bases 7, can prevent that the instrument such as screwdriver from disturbing the bottom surface of disposal boxes 2 and damaging the bottom surface of disposal box 2, and locking method becomes easy, can enhance productivity.
Fig. 7 represents the sectional view of the wheel bases 7 of present embodiment.
In Fig. 7, near wheel bases screw hole 23 and around, be provided with for keeping the locking rib 24 of the disposal box flanging part 12 of disposal box 2.
The number of wheel bases screw hole 23 and locking rib 24 is any, but the weight of disposal box 2 is heavier, and the quantity that locks rib is The more the better.
Then use Fig. 8～10 pair fifth embodiment of the invention to describe.
Fig. 8 is the stereogram of present embodiment.Roughly the same with the first embodiment except following point.
Hose transition 1 is provided with handle 25 herein.In Fig. 8, handle 25 is disposed at top with respect to hose transition 1, but also can be disposed at side or be disposed at below.
The handle 25 that is arranged at hose transition 1 by holding is mentioned disposal box, in can the shift action when dust is discharged, hose transition 1 is gripped securely towards top, can obtain the effect that dust in hose transition 1 and the dust in disposal box 2 can not be trickled down.
In addition, the wheel bases handle 8 that is arranged at wheel bases 7 in this electric dust collector, be disposed at the roughly the same direction of handle 25 on, therefore there is the advantage that can hold securely handle 25 and wheel bases 7 (with reference to Figure 10) while making disposal box 2 inclination when dust is discharged.
In addition, by holding handle 25, can reduce and lock by the power applying on screw 21 being limited to the disposal box of wheel bases screw hole 23, have advantages of and can improve durability.
In addition, by disposal box 2 and the fastener of wheel bases 7 are arranged to wheel bases handle 8 one sides, can more effectively improve locking intensity.
Fig. 9 represents the exploded perspective view of the electric dust collector of fifth embodiment of the invention.The hose transition 1 that is provided with handle 25 is installed on disposal box 2.
From the inner side of the disposal box 2 that will install, utilize hose transition to lock hose transition 1 fixing with screw 13 and that handle 25 forms as one.And, in the inner side of the disposal box 2 that will install, holding plate parts 26 are set, through holding plate parts 26, utilize the fixing hose transition 1 forming as one with handle 25 of mounting screw 27.
Holding plate parts 26 are at least arranged at a place as shown in Figure 9.
Electric dust collector of the present invention, comprising: disposal box 2, and it has opening at upper surface, and side has the hose transition 1 linking with flexible pipe, for piling up the dust sucking from described hose transition 1; Main unit 3, it releasably links with the upper surface open of described disposal box 2, has up handle 5, and has in the face of the air entry 16 in described disposal box 2, in inside, be built-in with electric fan 15, the air sucking in described disposal box 2 from described air entry 16; Filter 19, it is provided with the gas-tight seal 10 between described disposal box 2 and described main unit 3, and this filter for stoping the dust that is drawn into described disposal box 2 to intrude into described electric fan 15 1 sides by described air entry 16 below described air entry 16; With wheel bases 7, it has wheel 9 and wheel bases handle 8 for walking below described disposal box 2, described disposal box 2 is inserted into the state of described wheel bases 7 in the direction from substantially vertical, by disposal box, lock and be limited to described wheel bases 7 with screw 21, when dust is discharged, hand etc. can not contact dust, can wholesomely discharge dust thus, and then can prevent that wheel bases and disposal box from departing from, and improve the operating efficiency while manufacturing.
And, the handle and the wheel bases that are arranged at hose transition are disposed to roughly the same direction, by hold two handles when dust is discharged, can reduce to be applied to the power of disposal box and wheel bases card division, mention durability.
Description of reference numerals
1 hose transition
2 disposal boxes
3 main unit
4 body shell
5 handles
6 fixtures
7 wheel bases
8 wheel bases handles
9 walking wheels
10 gas-tight seal
11 disposal box mounting grooves
12 disposal box flanging parts
13 hose transition locking screws
14 annular gaskets
15 electric fans
16 air entries
17 motor base (frame)s
18 filter stand
19 filters
20 power lines
21 disposal box locking screws
23 wheel bases screw holes
24 wheel bases lock rib
25 handles
26 holding plate parts
27 mounting screws
Claims (5)
1. an electric dust collector, is characterized in that, comprising:
Disposal box, it has opening at upper surface, and side has the hose transition linking with flexible pipe, for piling up the dust sucking from described hose transition;
Main unit, it releasably links with the upper surface open of described disposal box, has up handle, and has in the face of the air entry in described disposal box, in inside, is built-in with electric fan, from described air entry, sucks the air in described disposal box;
Filter, it is provided with the gas-tight seal between described disposal box and described main unit, and this filter for stoping the dust that is drawn into described disposal box to intrude into described electric fan one side by described air entry below described air entry; With
Wheel bases, it has wheel and wheel bases handle for walking below described disposal box,
Described disposal box is inserted in the direction from substantially vertical the state of described wheel bases, by disposal box, is locked and is limited to described wheel bases with screw.
2. electric dust collector as claimed in claim 1, is characterized in that:
With screw, the above-below direction with respect to described disposal box locks from transverse direction in described disposal box locking.
3. electric dust collector as claimed in claim 1, is characterized in that:
Described disposal box locks and goes laterally from the central side of described disposal box by the locking direction of screw.
4. electric dust collector as claimed in claim 1, is characterized in that:
The screw of described disposal box and described wheel bases locks direction and goes laterally from the central side of described disposal box, and described disposal box locks to tilt upward with respect to floor with the leading section of screw.
5. an electric dust collector, is characterized in that, comprising:
Disposal box, it has opening at upper surface, and side has the hose transition linking with flexible pipe, for piling up the dust sucking from handled described hose transition is set;
Main unit, it releasably links with the upper surface open of described disposal box, has up handle, and has in the face of the air entry in described disposal box, in inside, is built-in with electric fan, from described air entry, sucks the air in described disposal box;
Filter, it is provided with the gas-tight seal between described disposal box and described main unit, and this filter for stoping the dust that is drawn into described disposal box to intrude into described electric fan one side by described air entry below described air entry; With
Wheel bases, it has wheel and wheel bases handle for walking below described disposal box,
Described disposal box is inserted into the state of described wheel bases in the direction from substantially vertical, in described wheel bases handle one side, by described disposal box, locked and be limited to wheel bases with screw, handle described in this electric dust collector is disposed at roughly the same direction with the handle that is arranged at described wheel bases.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013101795A JP5993796B2 (en) | 2013-05-14 | 2013-05-14 | Electric vacuum cleaner |
| JP2013-101795 | 2013-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104146656A true CN104146656A (en) | 2014-11-19 |
| CN104146656B CN104146656B (en) | 2017-04-12 |
Family
ID=51872450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203756.6A Active CN104146656B (en) | 2013-05-14 | 2014-05-14 | Electric cleaner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5993796B2 (en) |
| CN (1) | CN104146656B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2588436A (en) * | 2019-10-24 | 2021-04-28 | Techtronic Cordless Gp | A surface cleaning system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2656633B2 (en) * | 1989-10-28 | 1997-09-24 | 株式会社日立製作所 | Electric vacuum cleaner |
| JP2003219994A (en) * | 2002-01-28 | 2003-08-05 | Toshiba Tec Corp | Dust collector of electric cleaner |
| CN101209192A (en) * | 2006-12-28 | 2008-07-02 | 三星光州电子株式会社 | Vacuum cleaner |
| CN102342793A (en) * | 2010-07-27 | 2012-02-08 | 碧洁家庭护理有限公司 | Vacuum cleaner with latch mechanism |
| CN102905596A (en) * | 2010-05-31 | 2013-01-30 | 三菱电机株式会社 | Electric cleaner |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5252876U (en) * | 1975-10-14 | 1977-04-15 | ||
| JPS60210226A (en) * | 1984-04-04 | 1985-10-22 | 株式会社日立製作所 | Electric cleaner |
| JP3263490B2 (en) * | 1993-07-29 | 2002-03-04 | 三洋電機株式会社 | Electric vacuum cleaner |
| US6615446B2 (en) * | 2001-11-30 | 2003-09-09 | Mary Ellen Noreen | Canister vacuum cleaner |
| US20050257340A1 (en) * | 2004-05-19 | 2005-11-24 | One World Technologies Limited | Wet/dry vacuum |
| JP2009195488A (en) * | 2008-02-21 | 2009-09-03 | Sanyo Electric Co Ltd | Vacuum cleaner |
| JP5350899B2 (en) * | 2009-06-11 | 2013-11-27 | 株式会社マキタ | Dust collector |
| JP5565092B2 (en) * | 2010-05-19 | 2014-08-06 | 三菱電機株式会社 | Electric vacuum cleaner |
| DE102010038303A1 (en) * | 2010-07-22 | 2012-01-26 | Alfred Kärcher Gmbh & Co. Kg | vacuum-cleaning device |
-
2013
- 2013-05-14 JP JP2013101795A patent/JP5993796B2/en active Active
-
2014
- 2014-05-14 CN CN201410203756.6A patent/CN104146656B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2656633B2 (en) * | 1989-10-28 | 1997-09-24 | 株式会社日立製作所 | Electric vacuum cleaner |
| JP2003219994A (en) * | 2002-01-28 | 2003-08-05 | Toshiba Tec Corp | Dust collector of electric cleaner |
| CN101209192A (en) * | 2006-12-28 | 2008-07-02 | 三星光州电子株式会社 | Vacuum cleaner |
| CN102905596A (en) * | 2010-05-31 | 2013-01-30 | 三菱电机株式会社 | Electric cleaner |
| CN102342793A (en) * | 2010-07-27 | 2012-02-08 | 碧洁家庭护理有限公司 | Vacuum cleaner with latch mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014221129A (en) | 2014-11-27 |
| CN104146656B (en) | 2017-04-12 |
| JP5993796B2 (en) | 2016-09-14 |
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Address after: Tokyo, Japan, Japan Patentee after: Hitachi Global Living Program Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Household Electric Appliance Co. |