JP4176589B2 - Vacuum cleaner suction port - Google Patents

Description

  The present invention relates to a suction port body of an electric vacuum cleaner provided with a rotary cleaning body that is rotatably provided on a case body so as to face a surface to be cleaned.

Conventionally, the suction port body of this type of vacuum cleaner has a horizontally long case body. A horizontally long suction port is formed in an opening on the lower surface of the case body that faces the floor as a surface to be cleaned. A rotary brush as a rotary cleaning body is rotatably supported in the suction port. This rotary brush includes a brush base that is a shaft member as an elongated cylindrical mounting member. A flexible cloth cleaning member for floor polishing is attached to the outer peripheral surface of the brush base so as to protrude in a wall shape in the radial direction. This cleaning member is attached to the brush base via a pedestal portion (see, for example, Patent Document 1) by folding the tip portion into close contact.
JP-A-10-71111 (page 2-5, FIG. 1)

  In the suction opening body of the vacuum cleaner described above, the cleaning member is formed by folding the tip part into close contact, so that the cloth can be prevented from being loosened during cleaning, but the folded tip part is utilized for cleaning. However, improvement in this respect is desired.

  This invention is made | formed in view of such a point, and it aims at providing the suction inlet body of the vacuum cleaner which can improve cleaning property.

According to the present invention, a rotary cleaning body that is rotatably provided on a case body so as to face a surface to be cleaned is protruded along a radial direction on an outer peripheral surface of a shaft-shaped mounting member, and a tip end portion is folded and accommodated. A cloth cleaning member in which a portion is formed, and a moisturizing member that is housed in the housing portion and impregnated with a liquid material. Then, the housing portion formed by folding the distal portion of the fabric of the cleaning member which projects along the outer peripheral surface of the shaft-like mounting member in the radial direction, so to accommodate the moisturizing member for impregnating the liquid material, the cleaning member Effective use of wrapping to prevent unraveling, and the liquid material held in the moisturizing member oozes out from the storage part to the fold-back part, adheres to the surface to be cleaned, and assists in the cleaning of the surface to be cleaned. With the configuration, it becomes possible to easily improve the cleaning property.

According to the present invention, the moisturizing member impregnated with the liquid material is accommodated in the accommodating portion formed by folding the front end portion of the cloth cleaning member protruding in the radial direction on the outer peripheral surface of the shaft-shaped mounting member. The liquid material held in the moisturizing member oozes out from the housing portion to the folded portion and effectively adheres to the surface to be cleaned to assist the polishing and cleaning of the surface to be cleaned by effectively using the folding to prevent the cleaning member from being unwound. The cleaning property can be easily improved with a simple configuration.

  Hereinafter, the configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  In FIG. 5, reference numeral 1 denotes a cleaner body, and an electric blower 2 is accommodated in the cleaner body 1. The vacuum cleaner body 1 is a so-called canister-type vacuum cleaner, and captures and collects dust sucked together with intake air generated by driving the electric blower 2.

  Further, a main body inlet 3 for sucking air from the outside is opened at the front center of the cleaner body 1. The main body suction port 3 is connected to a hose body 4 as a slender, substantially cylindrical connecting pipe that can be bent. At the tip of the hose body 4, a hand operation unit 5 capable of selecting an operation mode of the electric blower 2 is provided.

  The hand operating section 5 is provided with a plurality of setting buttons 6 for setting the driving state of the electric blower 2 and the like in the cleaner body 1 to a predetermined state. A gripping portion 7 is projected on the proximal end side. An extensible and elongated cylindrical extension tube 8 is detachably connected to the distal end of the hand operation portion 5 so as to be detachable. Further, a floor brush 9 that is installed on, for example, a carpet on the indoor floor surface and sucks dust on the carpet is detachably connected to the tip of the extension pipe 8. This floor brush 9 is a suction port body of a vacuum cleaner.

  Further, as shown in FIGS. 1 and 4, the floor brush 9 is provided with a convex case body 11 which is horizontally long with respect to the traveling direction which is the front-rear direction, and whose rear center is protruded rearward. Yes. An elongated rectangular suction port 12 is formed in the lower surface of the case body 11 that faces the floor as a surface to be cleaned. The suction port 12 is provided at a position displaced to the front side in the traveling direction of the case body 11, and is formed in a horizontally long rectangular shape having a longitudinal direction along the width direction with respect to the traveling direction of the case body 11. Yes.

  Further, on the inner side of the suction port 12 of the case body 11, a rotary brush 13 as an elongated, substantially cylindrical rotary cleaning body is rotatably supported and supported from the rear side in the running direction to the front side. . The rotating brush 13 is attached to face the floor surface when the suction port 12 of the case body 11 is made to face the floor surface. As shown in FIGS. 2 and 3, the rotating brush 13 includes a brush base 14 that is a shaft member as an elongated substantially cylindrical shape, that is, a shaft-shaped mounting member.

  The outer peripheral surface of the brush base 14 is provided with a plurality of, for example, four engagement recesses 15 that are mounting recesses as mounting groove portions having a substantially concave cross section that are spirally twisted in the circumferential direction along the axial direction. These engaging recesses 15 are formed with the other end twisted, for example, 180 ° with respect to one end in the circumferential direction of the brush base 14.

  Further, the engagement recesses 15 are provided at equidistant positions at intervals in the circumferential direction of the brush base 14 in a state where the longitudinal direction is along the longitudinal direction of the brush base 14. These engaging recesses 15 are provided with a step between an enlarged portion 16 whose inside is wider in the circumferential direction and a communicating portion 17 that communicates from the enlarged portion 16 to the outer peripheral surface and is narrower than the enlarged portion 16. The cross-sectional shape is formed in a concave shape having a claw shape with a narrow tip. Here, the enlarged portions 16 of the engagement recesses 15 are formed in the shape of a concave arc on the base end side and in a planar shape with the inner edge on the front end side facing the base end side.

  Furthermore, the base end side of the substantially elongated flat plate-like floor polishing member 21 is locked and attached to each engaging recess 15 along the circumferential direction. Therefore, these floor polishing members 21 are attached to the outer peripheral surface of the brush base 14 in a spirally twisted direction along the axial direction of the brush base 14 in the circumferential direction. That is, the floor polishing member 21 is provided in a state of being spirally twisted together with the brush base 14 toward the periphery. The floor polishing member 21 protrudes in a wall shape toward the radial direction of the brush base 14 in a state where the base end side is locked to the engagement recesses 15 of the brush base 14.

  Here, the floor polishing member 21 is provided with an elongated substantially plate-like brush mounting portion 23 having a shape substantially matching the cross-sectional shape of the engagement recess 15 of the brush base 14. The brush attachment portion 23 is formed of, for example, a synthetic resin such as soft vinyl chloride, and can be engaged with and disengaged from the engagement recess 15 of the brush base 14. Further, the brush mounting portion 23 is integrally provided with the brush mounting portion 23 with a mounting projection 23a protruding over the entire length. The attachment protrusion 23a protrudes from the communication portion 17 to the outside of the engagement recess 15 in a state where the floor polishing member 21 is attached to each engagement recess 15 of the brush base 14.

  A cloth blade 24 as a cloth cleaning member having flexibility and moisture retention is formed in a wall shape along the longitudinal direction on the side surface of the mounting protrusion 23a of the brush mounting section 23 on the rear side in the rotation direction of the rotary brush 13. Is provided.

  The fabric blade 24 is attached at its base end part to the entire attachment protrusion 23a by bonding or the like. Further, the cloth blade 24 includes a folded portion 26 that is folded in a loop shape toward the front side in the rotational direction of the rotary brush 13 so that a hollow accommodating portion 25 is formed at the tip portion. The folded portion 26 is fixed by a fixing portion 26a in the vicinity of the front end portion of the cloth blade 24 itself by sewing or adhesion. The adhering portion 26a is located closer to the distal end side of the cloth blade 24 than the mounting protrusion 23a of the brush mounting portion 23. Therefore, the cloth blade 24 is folded only at the tip, and the length of the folded portion 26 is smaller than the length of the tip of the folded portion 26 from the outer peripheral surface of the brush base 14.

  Further, a moisture retaining member 27 as a cleaning auxiliary member having moisture retention is accommodated in the accommodating portion 25. The moisturizing member 27 is, for example, urethane formed in a sponge shape, and can hold a liquid (not shown) such as water or wax that assists the floor polishing member 21 in cleaning the floor surface. The moisturizing member 27 is accommodated throughout the accommodating portion 25. That is, the moisturizing member 27 is provided continuously in the longitudinal direction of the cloth blade 24.

  Further, shafts (not shown) project from both end portions of the brush base 14, respectively. The substantially cylindrical receiving plates 41, which are receivers as holding members for holding and fixing both end portions of the brush base 14, are provided on these shafts. Are attached coaxially.

  An annular inner flange 44 for preventing the floor polishing member 21 from coming off from the engaging recess 15 of the brush base 14 is provided concentrically on the peripheral surface portion of the receiving plate 41 facing the brush base 14. ing.

  An annular outer flange 45 is coaxially provided on the peripheral surface portion of the receiving plate 41 with respect to the inner flange 44. On the outer peripheral surface side of the outer flange portion 45, a substantially cylindrical gear portion 47 having gear grooves 46 formed at equal intervals in the circumferential direction on the outer peripheral surface is provided concentrically. A substantially cylindrical bearing 48 is fitted inside the front end side of the gear portion 47. The bearing 48 is fitted to an end portion of the shaft, and fixes the end portion of the shaft to be rotatable. As shown in FIG. 4, these bearings 48 are respectively engaged with a pair of shaft support recesses 51 provided on both side edges of the floor brush 9 in the traveling direction of the suction port 12 of the case body 11. As a result, the rotating brush 13 is rotatable with respect to the case body 11 of the floor brush 9.

  On the other hand, as shown in FIGS. 1 and 4, a motor 61 as drive means is accommodated in the rear side of one pivotal support recess 51 in the case body 11 of the floor brush 9. A rotating shaft 62 that rotates by driving of the motor 61 protrudes from the tip of the motor 61. A gear 63 having a gear groove (not shown) formed on the outer peripheral surface is concentrically attached to the rotating shaft 62. The gear groove of the gear 63 is formed with the same interval and size as the gear groove 46 of the gear portion 47 of the receiving plate 41. Further, the gear 63 is located on the rear side of one receiving plate 41 of the rotating brush 13 attached in the case body 11 of the floor brush 9, and has a rotation direction that matches the rotation direction of the receiving plate 41. ing.

  A belt body 64 serving as an endless band is wound between the gear 63 and the gear portion 47 of one receiving plate 41 of the rotary brush 13 so as to bridge. On the inner peripheral surface of the belt body 64, a gear groove (not shown) having an interval and a size capable of engaging with each of the gear groove of the gear 63 and the gear groove 46 of the gear portion 47 is formed. Therefore, when the motor 61 is driven, the gear 63 is rotated by the rotation of the rotating shaft 62 of the motor 61, and the belt body 64 is rotated by the rotation of the gear 63, so that one receiving plate 41 of the rotating brush 13 is rotated. The rotating brush 13 is driven to rotate in the circumferential direction.

  Next, a method for assembling the floor brush according to the embodiment will be described.

  First, the base end portion of the cloth blade 24 is bonded to the pre-formed mounting protrusion 23a of the brush mounting portion 23, and the cloth blade 24 is folded back with the moisture retaining member 27 held at the tip portion of the cloth blade 24. Then, the floor polishing member 21 is manufactured by sewing or bonding to the cloth blade 24. The moisturizing member 27 may be impregnated with water or wax in advance, or may be impregnated during cleaning.

  Next, the brush mounting portion 23 of the floor polishing member 21 is placed in each engagement recess 15 of the brush base 14 from one end portion in the axial direction to the other end portion in each engagement recess 15 of the extruded brush base 14. The floor polishing member 21 is spirally projected toward the radial direction of the brush base 14 by sliding and locking.

  Further, the receiving plate 41 is fixed to shafts attached to both ends of the brush base 14 on which the floor polishing member 21 is attached to the outer peripheral surface, and the bearing 48 is attached to the end of the shaft protruding outward from each receiving plate 41. A rotating brush 13 is formed by fitting in a rotatable manner.

  Then, each of the bearings 48 of the rotary brush 13 is fitted into the shaft support recess 51 of the case body 11, and the rotary brush 13 is rotatably supported in the suction port 12 of the case body 11. The floor brush 9 is completed.

  Next, the operation of the above embodiment will be described.

  First, when cleaning, the floor brush 9 is connected to the cleaner body 1 through the hose body 4 and the extension pipe 8. Then, the gripper 7 of the hose body 4 is held and pushed to run the floor brush 9 back and forth on the floor surface.

  At this time, dust on the floor surface is sucked together with air from the suction port 12 of the floor brush 9 by the suction force generated by driving the electric blower 2 in the cleaner body 1.

  Thereafter, the air sucked together with dust from the suction port 12 of the floor brush 9 was sucked from the floor brush 9 into the main body suction port 3 of the cleaner body 1 through the extension pipe 8 and the hose body 4 in order. Thereafter, the dust sucked into the dust collecting pack accommodated in the cleaner body 1 and sucked together with the air is captured.

  Further, when the floor surface is between the plates, that is, flooring or the like, when the predetermined setting button 6 of the hand operation part 5 of the hose body 4 is turned on and the rotating brush 13 of the floor brush 9 is driven to rotate, the rotating brush 13, when the floor polishing member 21 rotates, the folded portion 26 of the floor polishing member 21 comes into contact with the floor surface. Wax or the like oozes out from the accommodating portion 25 to the folded portion 26 and adheres to the floor surface.

  When the rotating brush 13 further rotates in this state, water or wax is rubbed against the floor surface, and the rotating brush 13 polishes and cleans the floor surface.

  When the water or wax held by the moisturizing member 27 is used up, it is replenished by immersing the folded portion 26 of the cloth blade 24 in water or wax.

  As described above, in the above-described embodiment, the folded portion obtained by folding the tip of the fabric cloth blade 24 of the floor polishing member 21 attached to the outer peripheral surface of the brush base 14 of the rotating brush 13 so as to protrude along the radial direction. A housing portion 25 is formed at 26, and the moisture retaining member 27 holding water or wax is accommodated in the housing portion 25.

  For this reason, the rotation of the rotating brush 13 causes the moisturizing member 27 to come into contact with the floor surface via the cloth blade 24 to be crushed, and the water or wax held by the moisturizing member 27 is transferred from the storage unit 25 to the folding unit 26. The moisturizing member 27 can assist in the cleaning of the floor surface by the floor polishing member 21.

  As a result, it is possible to easily improve the cleaning performance with a simple configuration by effectively using the folded portion 26 that prevents the cloth blade 24 from being unwound from the tip.

  That is, by setting the tip of the fabric blade 24 as the folded portion 26, for example, compared to the conventional case where the tip of the fabric blade is not folded back, the tip of the fabric blade 24 can be disengaged from the tip. It is durable and has a large contact area with the floor surface so that the floor surface can be reliably captured when it comes into contact with the floor surface. It can be improved.

  At the same time, by folding the tip of the fabric blade 24, it becomes possible to hold water or wax that exudes from the moisturizing member 27 for a long time compared to a fabric blade that does not fold the tip. The polishing effect by the blade 24 can be maintained for a long time.

  Further, since the accommodating portion 25 that accommodates the moisture retaining member 27 is positioned at the distal end portion of the cloth blade 24, for example, the rotational moment of the rotary brush 13 is increased as compared with the case where the distal end portion of the cloth blade is merely folded back. The momentum of rotation of the rotating brush 13 increases, and the floor polishing effect by the floor polishing member 21 can be further improved.

  Further, by folding the folded portion 26 to the front side in the rotational direction of the rotating brush 13, when the floor polishing member 21 contacts the floor surface, for example, compared to the case where the folded portion is folded back to the rear side in the rotational direction of the rotating brush. In addition, since the housing part 25 is reliably crushed together with the moisturizing member 27 and more water or wax exudes from the moisturizing member 27, cleaning can be assisted more effectively.

  In addition, since the moisture retaining member 27 is accommodated in the accommodating portion 25, it is possible to prevent water or wax that has exuded from the moisture retaining member 27 from being scattered on the floor surface when the rotating brush 13 is rotated. Can be improved more.

  In addition, since the moisture retaining member 27 holds water, wax, etc., the cleaning assist effect lasts for a long time compared to, for example, the case where the cloth blade is impregnated with water or wax to polish the floor surface. it can.

  In addition, the length of the cloth used for the cloth blade 24 compared to the conventional case where the entire cloth blade is folded back to the brush mounting portion 23 in a U-shape, for example, by setting only the tip of the cloth blade 24 as the folded portion 26. Therefore, the material cost can be reduced and the manufacturing cost can be reduced.

  In the above embodiment, the floor brush 9 is provided with floor surface detection means for detecting the type of floor surface, and the rotary brush 13 is rotated according to the type of floor surface detected by the floor surface detection means, or You may control to stop.

  Further, the folding portion 26 may be folded back to the rear side in the rotation direction of the rotating brush 13. In this case, since the vicinity of the fixing portion 26a does not contact the floor surface, it is possible to prevent the fixing portion 26a from being released.

  Furthermore, the moisturizing member 27 can also be provided at least in a part of the housing part 25 as long as water or wax can be oozed out into the whole housing part 25.

  The engagement recess 15 of the brush base 14 may be at least one or more according to the number of floor polishing members 21 attached to the brush base 14.

  Further, a configuration in which the floor polishing member 21 and the floor polishing member that does not store the moisturizing member in the storage portion are alternately attached to the engagement recess 15 of the brush base 14 is also possible. In this case, with these floor polishing members, the floor surface can be polished and wiped at the same time, and the cleaning efficiency can be further improved.

  Further, it is also possible to provide the moisturizing member 27 with a tank or the like that can be replenished with water or wax as required, on the rotary brush 13 or the floor brush 9. In this case, the cleaning assist effect by the moisturizing member 27 can be maintained for a longer period.

  The vacuum cleaner is not limited to the canister type vacuum cleaner, but is an upright type in which the floor brush 9 is directly formed on the lower surface of the vacuum cleaner body 1. In addition, the vacuum cleaner body 1 and the floor brush 9 are integrated. Even a self-propelled electric vacuum cleaner or a handy type can be used correspondingly.

It is a longitudinal cross-sectional view which shows the suction inlet body of the vacuum cleaner of one embodiment of this invention. It is a longitudinal cross-sectional view which shows the rotary cleaning body of the suction inlet body of a vacuum cleaner same as the above. It is a perspective view which shows a rotary cleaning body same as the above. It is a top view which shows the suction inlet body of a vacuum cleaner same as the above. It is a perspective view which shows the vacuum cleaner provided with the suction inlet of the vacuum cleaner same as the above.

Explanation of symbols

9 Floor brush as suction port of vacuum cleaner
11 Case body
13 Rotating brush as rotating cleaning body
14 Brush stand as mounting member
24 Cloth blade as cleaning member
25 containment
27 moisturizing member

Claims (2)

The case body,
A rotating cleaning body provided rotatably on the case body facing the surface to be cleaned;
The rotary cleaning body is
An axial mounting member;
A cleaning member made of cloth that is projected along the radial direction on the outer peripheral surface of this mounting member, the tip portion of which is folded back to form a housing portion,
A suction port body for an electric vacuum cleaner comprising: a moisturizing member housed in the housing portion of the cleaning member and impregnated with a liquid material. The suction port body of the electric vacuum cleaner according to claim 1, wherein the cleaning member has a tip portion folded back to the front side in the rotation direction of the rotary cleaning body.

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