EP4218520A1 - Tête de nettoyage et appareil de nettoyage - Google Patents

Tête de nettoyage et appareil de nettoyage Download PDF

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Publication number
EP4218520A1
EP4218520A1 EP22154479.4A EP22154479A EP4218520A1 EP 4218520 A1 EP4218520 A1 EP 4218520A1 EP 22154479 A EP22154479 A EP 22154479A EP 4218520 A1 EP4218520 A1 EP 4218520A1
Authority
EP
European Patent Office
Prior art keywords
dust
sucking
face
wall portion
pair
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
Application number
EP22154479.4A
Other languages
German (de)
English (en)
Inventor
Kazuhiko Soemoto
Hiroshi Uzawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takusyo Co Ltd
Original Assignee
Takusyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takusyo Co Ltd filed Critical Takusyo Co Ltd
Priority to EP22154479.4A priority Critical patent/EP4218520A1/fr
Publication of EP4218520A1 publication Critical patent/EP4218520A1/fr
Pending legal-status Critical Current

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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
    • A47L9/02—Nozzles
    • A47L9/08—Nozzles with means adapted for blowing

Definitions

  • This invention relates to a cleaner head and a cleaner apparatus.
  • a conventional cleaner head C 0 of a cross-sectional configuration as shown in figure 7 is used (refer to Japanese Patent Provisional Publication No. 2011-45867 ).
  • a dust-removed body 51 fed in an arrow K direction is a flat sheet, a flat panel, etc.
  • a discharging slit 53 on a center and sucking slits 54 on an upstream and downstream sides in the feeding direction (the arrow K) are provided, and an interval dimension W 54 of the sucking slits 54 is set to be sufficiently large.
  • the interval dimension W 54 is a dimension of mutual interval between center lines of the two slits 54 in the cross section shown in figure 9 .
  • the dust-removed body 51 shown in figure 8B and figure 8C is a film (sheet body) supported by a backup roll 55 and fed in the arrow K direction, and a corresponding face 56 of the cleaner head C 0 is formed into a concave face of a low trapezoid or arc to keep the interval dimension between the sucking slit 54 and the dust-removed body 51 under a predetermined value.
  • the inventors of the present invention had an idea that the interval dimension W 54 in the conventional cleaner head C 0 composed of an extruded section of aluminum as shown in figure 7 be shortened, and considered a cleaner head C 1 (as a comparison example) shown in figure 9 .
  • the inventors thought that the interval dimension W 54 of the sucking slits 54 can be reduced (in comparison with figure 7 ) as shown in the comparison example in figure 9 , and the cleaner can be applied to the dust-removed body 51 such as a sheet body supported by the backup roll 55.
  • interval dimension W 54 can't be sufficiently small because the cleaner head C 1 is composed of an extruded section of aluminum in figure 9 (comparison example).
  • a pressurized space 59 on the center and left and right vacuum spaces 60 are formed by a rectangular surrounding wall 57 and two bent dividing walls 58 within the surrounding wall 57, and, it is difficult to make an interval dimension Wa of a near discharging portion 59A of the pressurized space 59 near the discharging slit 53 small as shown in figure 9 .
  • the reason is the difficulty of making a part of a core of an extrusion die thin as to form the small interval dimension Wa shown in figure 9 . That is to say, when the part of the core of the extrusion die is formed thin as the interval dimension Wa, the core is damaged and abraded early in extrusion.
  • interval dimension Wa in figure 9 can't be made sufficiently small because the thickness of the extruded dividing wall 58 itself is difficult to be thin.
  • cleaner head including features of claim 1 or claim 2 and a cleaner apparatus including features of claim 4.
  • an extruded section 1 composed of metal such as aluminum is shown.
  • the extruded section 1 has a surrounding outer wall portion 11 rectangular in cross section and a pair of dividing inner wall portions 12 as one unit.
  • a cleaner head 30 relating to the present invention is shown.
  • the cleaner head 30 is made by opening a discharging slit 6 and two sucking slits 7 on the extruded section 1 in figure 2 by machine work, etc.
  • the pair of dividing inner wall portions 12 divides an inner space of the rectangular surrounding outer wall portion 11 into a pressurized space P 0 and vacuum spaces V 0 .
  • the inner space is divided into the pressurized space P 0 on the center and the left and right vacuum spaces V 0 by the dividing inner wall portions 12.
  • the surrounding outer wall portion 11 of which cross-sectional configuration is laterally long flat rectangular composed of a side (first horizontal face portion) 11A disposed to face the dust-removed face 10, another side (second horizontal face portion) 11B parallel to the side 11A, a left side (vertical left face portion) 11C, and a right side (vertical right face portion) 11D.
  • the dividing inner wall portion 12 has a vertical portion 12A and an inclined portion 12B of which cross-sectional configuration is bent "L" shaped. As shown in figure 2 , two vertical portions 12A are suspended from the other side (upper side) 11B with right angles, and the inclined portions 12B are bent from a vertically middle position as to come close each other.
  • An angle ⁇ formed by the inclined portion 12B and a central vertical line Lc is 30° to 50°.
  • the angle ⁇ is preferably 35° to 45°.
  • the pair of left and right dividing inner wall portions 12 has a cross-sectional configuration in which the dividing inner wall portions 12 are (mutually) approaching from the vertically middle position as to form a predetermined angle 2 ⁇ of 60° to 100° (preferably 70° to 90°), and, confluent with and connected to the side (first horizontal face portion) 11A.
  • a mark G indicates a confluent position where the inclined portions 12B of the pair of the left and right dividing inner wall portions 12 and the side (first horizontal face portion) 11A are connected.
  • an R-shaped thick portion 13 is formed on a corner portion formed by the inclined portion 12B and the side 11A.
  • the discharging slit 6 to jet high-pressured air in the pressurized space P 0 is opened. That is to say, the discharging slit 6 of narrow width dimension ⁇ is formed along the central vertical line Lc.
  • a pair of the sucking slits 7 to suck the air (after dust removing including dust separated and removed from the dust-removed face 10) into the vacuum spaces V 0 is formed parallel to each of the inclined portions 12B of the pair of dividing inner wall portions 12 mutually approaching with the predetermined angle 2 ⁇ .
  • each of the sucking slits 7 is opening parallel to the inclined portion 12B. Therefore, the angle formed by the pair of sucking slits 7 is 2 ⁇ . And, the sucking slits 7 are disposed line symmetric each other with respect to the central vertical line Lc.
  • the above-described side (first horizontal face portion) 11A can be called a corresponding wall portion 15 facing the dust-removed face 10.
  • outer extended lines L 7 of the pair of sucking slits 7 opening on the corresponding wall portion 15 are inclined against the corresponding wall portion 15 as to mutually come close and intersect as departed from the corresponding wall portion 15.
  • the outer extended lines L 7 are lines along the center of the slit width of each of the sucking slits 7, mutually come close with the angle of 2 ⁇ and intersect on a position of an asterisk 25 (in figure 4 ).
  • the sucking slit 7 has inner faces 7S facing mutually parallel, and, each of the inner faces 7S has a cross sectional configuration of straight line and reaches for a flat outer face P 15 of the corresponding wall portion 15 keeping the straight line.
  • an acute-angled edge 17 and an obtuse-angled edge 18 are formed (as shown in figure 4 ) on an opening end portion 7P on which the sucking slit 7 opens on the lower face of the corresponding wall portion 15 (the first horizontal face portion 11A). Therefore, when observed from a lower side of figure 4 , the opening end portion 7P of each of the sucking slits 7 is observed as a straight groove of small width.
  • sucking slit 7 immediately opens on the horizontal face portion 11A with the edges 17 and 18.
  • a mark 26 shows a blower.
  • a suction opening 26A of the blower 26 and a vacuum space V 0 are connected with a suction duct 27.
  • a discharge opening 26B of the blower 26 and a pressurized space P 0 are connected with a discharge duct 28.
  • a dust-removing filter 29 is disposed on the suction duct 27. With this construction, dust is removed with a circulation (of about 95 to 100%) of air.
  • the suction duct 27 is composed of branch ducts 27A and 27B respectively connected to the vacuum space V 0 and a confluent duct 27Y to which the branch ducts 27A and 27B become confluent on a position shown by a point 31. And, the dust-removing filter 29 is disposed on the confluent duct 27Y.
  • figure 6 shows another embodiment of the present invention. That is to say, a pressing and pulling force giving means 20, giving pressing force F 1 and pulling force F 2 to each of the pair of dividing inner wall portions 12 from outside of the surrounding outer wall portions 11 to slightly oscillate and deform the dividing inner wall portions 12 as to freely adjust the gap dimension ⁇ of the discharging slit 6 on the forth ends of the dividing inner wall portions 12, is provided.
  • a bolt-nut connection to connect the vertical left face portion 11C and the dividing inner wall portion 12 (on the left side), and a bolt-nut connection to connect the vertical right face portion 11D and the dividing inner wall portion 12 (on the right side), are used in figure 6 .
  • plural bolt-nut connections are disposed with a predetermined pitch in a direction at right angles with the surface of the figure.
  • suction flows F 7 are generated on positions very near an area where a discharge flow F 6 hits the dust-removed face 10, and the flows are very stable. Further, the flows don't generate vortex, and flow at high speed (with the shortest distance) from the exit of the discharging slit 6 to the opening end portion 7P of the sucking slit 7. By flowing as described above, the removed dust does not re-stick to the dust-removed face 10, and excellent dust-removing effect is shown.
  • the sucking slits 7 are inclined and the interval dimension W 54 of the opening ends of the sucking slits 7 can be sufficiently small, and the discharge flow F 6 comes close to the hitting area on the dust-removed face 10 further. Therefore, as shown in figure 5 , the dust-removed body 9 such as a sheet body (film) can be dust-removed with a pair of the cleaner heads 30 on a middle position between feed rolls 21 and 22 without the backup roll 14 (as shown in figure 1 ). That is to say, there is also an advantage that air conveyance is possible without the backup roll 14 as shown in figure 5 .
  • interval dimension W 54 a distance from a center point of the opening end portion 7P of the sucking slit 7 on one side and a center point of the opening end portion 7P of the sucking slit 7 on the other side.
  • the gap (interval) with the lower face of the side 11A of the surrounding outer wall portion 11 is sufficiently small on the position of the downward opening portion of the sucking slit 7.
  • the cleaner head 30 of the present invention can be applied (commonly used).
  • the corresponding face 56 must be concave low trapezoid or concave arc because the sucking slits 54 have to be prevented from being separated greatly from the dust-removed body 51.
  • the cleaner head 30 of the present invention in which the conventional corresponding face 56 of concave low trapezoid (refer to figure 8B ) or concave arc (refer to figure 8C ) is not necessary, can be commonly used with the same configuration (dust-removing function can be sufficiently shown).
  • ⁇ H is an gap dimension between the corresponding wall portion 15 and the dust-removed face 10.
  • high-pressure flow is jetted from an air reserve chamber pressurized to the pressure Pp of 5KPa to 7KPa through the discharging slit 6 of which gap dimension ⁇ is 0.2mm to 0.4mm.
  • the floated foreign matter is immediately sucked by the opening end portion 7P of the sucking slit 7. Therefore, there is an advantage that re-sticking of the foreign matter is not generated at all for high-speed and immediate sucking by the opening end portion 7P (without generation of vortex).
  • the dust-removing ability is determined by flowing speed. However, sucking ability determines whether the re-sticking is generated or not. The re-sticking of the foreign matter can be sufficiently prevented because the above-mentioned Vp is appropriately low pressure, and the foreign matter is immediately sucked.
  • the present invention can correspond with flexibility to the dust-removed face 10 of the dust-removed body 9 of flat face (plane) and curved faces of large and small radiuses of curvature with the sufficiently small interval dimension W 54 of the opening ends of the sucking slits 7 because in the cleaner head having the discharging slit 6 opening in the direction at right angles with the corresponding wall portion 15 having the flat outer face P 15 facing the dust-removed face 10, and the pair of sucking slits 7 opening near upstream and downstream of the discharging slit 6, and, the outer extended lines L 7 of the pair of sucking slits 7 are inclined as to mutually come close and intersect as departed from the flat outer face P 15 of the corresponding wall portion 15, further, each of the sucking slits 7 has the inner faces 7S facing mutually parallel, and each of the inner faces 7S has a cross-sectional configuration of straight line, and reaches for the flat outer face P 15 of the corresponding wall portion 15 keeping
  • the opening width dimension of the opening end portion 7P becomes very small value for the construction in which the inner faces 7S of the sucking slit 7 reach for the flat outer face P 15 of the corresponding wall portion 15 keeping the configuration of straight line to open the sucking slit 7.
  • the cross-sectional configuration of the pair of dividing inner wall portions 12 does not form the narrow interval dimension Wa in the comparison example in figure 8 , the problem of damage and early abrasion of the core of the extrusion die described with figure 8 can be solved, and, in spite of that, the interval dimension W 54 of the opening ends of the sucking slits 7 can be made sufficiently small because the cleaner head of the present invention is made of the extruded section 1, having the surrounding outer wall portion 11 and the pair of dividing inner wall portions 12 dividing the inner space of the surrounding outer wall portion 11 into the pressurized space P 0 and vacuum spaces V 0 as one unit, the surrounding outer wall portion 11, in cross-sectional configuration, has the side 11A of straight line disposed to face the dust-removed face 10, the dividing inner wall portions 12 are mutually approaching to form the predetermined angle 2 ⁇ of 60° to 100° and confluent with and connected to the side 11A, on the connected confluent position G, the discharging slit 6 to jet high-pressured air
  • the interval dimension W 54 is sufficiently small, and the cleaner head can correspond with flexibility to the dust-removed face 10 of the dust-removed body 9 of (flat) plane and curved faces of large and small radiuses of curvature. Therefore, it is not necessary to prepare various cleaner heads.
  • the interval dimension W 54 can't be sufficiently reduced, and sufficient dust removing is difficult depending on the configuration of the dust-removed face 10.
  • the opening width dimension of the opening end portion 7P becomes very small value for the construction in which the inner faces 7S of the sucking slit 7 reach for the side 11A keeping the configuration of straight line to open the sucking slit 7.
  • adjustment can be rapidly and easily conducted for uniform air discharge along the whole length of the cleaner head because the pressing and pulling force giving means 20, giving pressing force F 1 and pulling force F 2 to each of the pair of dividing inner wall portions 12 from outside of the surrounding outer wall portions 11 to slightly oscillate and deform the dividing inner wall portions 12 as to freely adjust a gap dimension ⁇ of the discharging slit 6 on the forth ends of the dividing inner wall portions 12, is provided. Further, without disassemble of the cleaner head, the adjustment work of high accuracy can be conducted rapidly from outside even during the operation.
  • the discharging slit 6 and the sucking slits 7 are disposed to be proximate, when the dust is removed from the dust-removed face 10 by flowing high-speed air with the shortest distance, all of the amount of the air flow from the discharging slit 6 on the center is certainly sucked by the left and right sucking slits 7, outside air is not mixed, and sufficient dust removing can be rapidly and certainly conducted with efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
EP22154479.4A 2022-02-01 2022-02-01 Tête de nettoyage et appareil de nettoyage Pending EP4218520A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22154479.4A EP4218520A1 (fr) 2022-02-01 2022-02-01 Tête de nettoyage et appareil de nettoyage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22154479.4A EP4218520A1 (fr) 2022-02-01 2022-02-01 Tête de nettoyage et appareil de nettoyage

Publications (1)

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EP4218520A1 true EP4218520A1 (fr) 2023-08-02

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EP22154479.4A Pending EP4218520A1 (fr) 2022-02-01 2022-02-01 Tête de nettoyage et appareil de nettoyage

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB732972A (en) * 1951-04-10 1955-07-06 Asbrink & Company Ab Improvements in or relating to suction cleaner nozzles
US20020184730A1 (en) * 2001-05-03 2002-12-12 Allen Donavan J. Air recirculating surface cleaning device
JP2008055398A (ja) * 2006-08-31 2008-03-13 Miyata Kunio エアクリーナヘッドの断面構造
JP2011045867A (ja) 2009-07-29 2011-03-10 Takushoo:Kk 除塵装置及び除塵システム
JP6110111B2 (ja) * 2012-11-16 2017-04-05 株式会社飯沼ゲージ製作所 除塵装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB732972A (en) * 1951-04-10 1955-07-06 Asbrink & Company Ab Improvements in or relating to suction cleaner nozzles
US20020184730A1 (en) * 2001-05-03 2002-12-12 Allen Donavan J. Air recirculating surface cleaning device
JP2008055398A (ja) * 2006-08-31 2008-03-13 Miyata Kunio エアクリーナヘッドの断面構造
JP2011045867A (ja) 2009-07-29 2011-03-10 Takushoo:Kk 除塵装置及び除塵システム
JP6110111B2 (ja) * 2012-11-16 2017-04-05 株式会社飯沼ゲージ製作所 除塵装置

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