JP2010035793A - Suction port body and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction port body capable of sufficiently cleaning a traveling surface of slide contact sections without increasing a traveling load and especially removing hair stuck to a carpet; and to provide a vacuum cleaner having the same. <P>SOLUTION: This suction port body includes a rotary cleaning body rotatably journaled to a suction port provided in a case body, a pair of slide contact sections covering journal sections journaling both sides of the rotary cleaning body, provided in the lower part of the case body and coming into contact with a surface to be cleaned, short nap cloths provided on the surface front sides of the slide contact sections, and long nap cloths provided on the rear sides of the short nap cloths and having naps longer than those of the short nap cloths. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a suction port body and a vacuum cleaner, and more particularly to a suction port body having an improved bottom surface structure and a vacuum cleaner including the same.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower, and the vacuum cleaner body is provided with a dust collecting portion that communicates with the suction side of the electric blower. It communicates with a main body inlet formed in the main body.

  A hose body, an extension pipe, and a floor brush as the suction port body are sequentially connected to the main body suction port.

  This floor brush includes a horizontally long case body in plan view, and a suction port is formed in the lower portion of the case body facing the floor surface which is a surface to be cleaned.

A rotary brush, which is a rotary cleaning body that scrapes off dust on the floor surface, is rotatably disposed in the suction port, and the rotary brush is rotationally driven by a motor that is a driving means disposed in the case body. Further, at the end of the rotating brush, a bristle brush portion is provided as a cleaning portion that rotates with the rotation of the rotating brush and carries the dust on the floor surface to the suction port (see, for example, Patent Document 1). .)
JP 2005-253656 A

  In the conventional suction port body, a pair of sliding contact portions projecting outward from the lower surface of the case body and in contact with the surface to be cleaned covers the bearing portions that pivotally support both sides of the rotating brush. The suction port is moved along the surface to be cleaned while adhering to the surface to be cleaned to adsorb dust adhering to the surface to be cleaned.

  However, the conventional suction port body is in a state of a raw material such as a synthetic resin so that the sliding contact portion slides smoothly along the surface to be cleaned, and although smooth sliding is realized, the running surface of the sliding contact portion is realized. The cleaning was not done enough. In particular, hair attached to the carpet cannot be sucked by the negative pressure generated at the suction port and cannot be sufficiently cleaned.

  The present invention has been made in view of the above, and can sufficiently clean the running surface of the sliding contact portion without increasing the running load, and in particular, a suction port body that can also remove hair attached to the carpet and the like. It aims at providing the vacuum cleaner provided.

  In order to achieve the above-described object, a suction port body according to the present invention includes a case body, a suction port formed in the case body, a rotary cleaning body rotatably supported by the suction port, A pair of sliding contact portions that cover the shaft support portions that support both sides of the rotary cleaning body and that are provided on the lower surface of the case body and that are in contact with the surface to be cleaned, and on the front side of the sliding contact portion. A short raising cloth and a long raising cloth which is provided on the rear side of the short raising cloth and which is longer than the short raising cloth are provided.

  In addition, a vacuum cleaner according to the present invention includes a vacuum cleaner body that houses an electric blower, and the suction port body that is connected to the suction side of the electric blower with respect to the vacuum cleaner body. To do.

  According to the suction port body and the vacuum cleaner including the same according to the present invention, the running surface of the sliding contact portion can be sufficiently cleaned without increasing the running load, and in particular, the hair attached to the carpet can also be removed. The suction inlet which can be performed, and a vacuum cleaner provided with the same can be provided.

  One embodiment of a suction mouth object concerning the present invention and a vacuum cleaner provided with the same is described with reference to an accompanying drawing.

  1 is a conceptual diagram of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a perspective view of a suction port body according to an embodiment of the present invention, and FIG. 3 is a bottom view of the suction port body according to an embodiment of the present invention. 4 is a plan view in which the case body of the suction port body is removed, and FIG. 5 is a plan view in which the rotating brush and the cover body of the suction port body are removed.

  As shown in FIG. 1, the electric vacuum cleaner 51 of the present embodiment includes a vacuum cleaner body 52, and the vacuum cleaner body 52 is dust that is sucked together with intake air generated by driving an electric blower 53 accommodated therein. Is collected in the dust collector.

  The cleaner main body 52 houses a control circuit (not shown) as a control means for controlling the operation of the electric blower 53, and a main body inlet 54 for sucking air from the outside is opened at the front. The main body suction port 54 is connected to an elongate substantially cylindrical hose body 55 that is flexible and can be bent.

  A hand operation unit 56 capable of selecting an operation mode of the electric blower 53 is provided at the tip of the hose body 55. A gripping portion 57 that is gripped by an operator when cleaning is projected from the proximal operation portion 56 toward the proximal end side, and a predetermined signal is transmitted to the control circuit to the gripping portion 57 to clean the cleaner. A plurality of setting buttons 58 for setting the electric blower 53 and the like in the main body 52 to a plurality of operation modes are provided.

  Furthermore, an elongated, substantially cylindrical extension tube 59 that is extendable and detachably connected to the distal end of the hand operation unit 56 is detachably connected. That is, the extension pipe 59 is connected to the suction side of the electric blower 53 via the hose body 55. Further, the extension brush 59 is placed on the tip of the extension pipe 59 on, for example, a floor carpet as a surface to be cleaned in the room, and the floor brush 1 as a suction port body of the present invention for sucking dust on the carpet. Are connected in a detachable manner.

  Therefore, the floor brush 1 is connected to the suction side of the electric blower 53 through the extension pipe 59, the hose body 55, and the main body suction port 54.

  As shown in FIGS. 2 and 3, the floor brush 1 as a suction port body includes a horizontally long case body 2 as a suction port body and a connection pipe 3 provided at the rear portion of the case body 2.

  The case body 2 includes a lower case 4 that is open on the upper side, an upper case 5 that covers the rear side of the upper portion of the lower case 4 and rotatably holds the connecting pipe 3 between the lower case 4 and the upper case 5 And a front cover 6 as a lid portion attached to the front portion of the case 5.

  In the lower case 4, a horizontally-long rectangular suction port 8 that accommodates the rotating brush 7 is cut out at the front end portion over substantially the entire width, and a pair of sliding contacts provided at both ends of the suction port 8. Wheel accommodating portions 11a and 11b for accommodating the drive wheels 10a and 10b are formed across the portions 9a and 9b, and the case body 2 is formed on the outer periphery of the lower case 4 including the side portions of the wheel accommodating portions 11a and 11b. Bumper members 12a and 12b made of a soft material are provided.

  Further, on one side near the rear side of the lower case 4, a wheel 13 that can contact the floor surface is provided.

  Further, a pair of cover bodies 14a and 14b are detachably attached to the lower case 4 by lock members 15a and 15b on the lower surface side facing the floor surface.

  As shown in FIG. 4, the case body 2 includes a driving source that is an electric part as driving means, that is, a motor 16, the rotating brush 7 as a rotary cleaning body rotated by the motor 16, and the rotating brush. 7 and drive wheels 10a and 10b that can rotate integrally with the rotary brush 7 and a safety device 17 that serves as a safety switch for the rotary brush 7 are provided.

  The safety device 17 includes a wheel 13 that can come into contact with the floor surface, and the wheel 13 is exposed to the lower side of the lower case 4 through the hole 4a. The safety device 17 is electrically connected to the motor control unit. The wheel 13 is allowed to drive the motor 16 by the motor control unit when the wheel 13 is in contact with the floor surface, and the wheel 13 is separated from the floor surface. Then, the motor control unit is configured not to permit driving of the motor 16. Further, the safety device 17 detects the traveling direction of the floor brush 1 based on, for example, the rotational direction of the wheel 13 in contact with the floor surface, and switches the rotational direction of the rotating brush 7 according to the traveling direction. It is possible to output a signal.

  As shown in FIG. 5, a wall portion 18 that rises substantially vertically toward the upper case 5 is formed at the rear portion of the suction port 8 of the lower case 4. As shown in FIG. 4, the suction port 8 communicates with the connection pipe 3 through the communication path R.

  In the lower case 4, shaft support portions 19 a and 19 b are continuously formed on the back surface of the sliding contact portions 9 a and 9 b at the positions of both side portions of the suction port 8, and the shaft support portions 19 a and 19 b include In addition, arc-shaped bearing grooves 21a and 21b are formed which rotatably support the bearing disc 20a and the bearing disc 20b shown in FIG.

  The shaft support portions 19a and 19b are provided with pulley housing grooves 22a and coupling housing grooves 22b adjacent to the inner sides of the bearing grooves 21a and 21b, respectively.

  Therefore, the rotary body assembly 23 shown in FIG. 6 can be accommodated in the suction port 8, the pulley accommodating groove 22a, the coupling accommodating groove 22b, and the wheel accommodating portions 11a and 11b provided in the lower case 4.

As shown in FIG. 6, the rotating body assembly 23 is provided on the rotating brush 7 whose at least one end is rotatably supported by the connecting shaft 24, and on one side (left side in the drawing) of the rotating brush 7, 25a ₁ and a coupling 25a comprising a bearing side coupling 25a ₂ and a coupling gear portion 26a. The bearing side coupling 25a ₂ is fixed via the gear portion 26a, and the surface is formed in a gear tooth shape. The driven pulley 26, the bearing disc 20a connected to the driven pulley 26, and the drive wheel 10a provided outside the bearing disc 20a are all attached to the connecting shaft 24.

  On the other hand, the other side (right side in the figure) of the rotating brush 7 is similarly provided with a coupling 25b, a bearing disc 20b, and a driving wheel 10b, which are attached to a connecting shaft (not shown).

As shown in FIGS. 5 and 7, in a state where the rotating body assembly 23 is housed in the lower case 4, the bearing disk 20a is rotatably housed and supported in the bearing groove 21a, and the pulley housing groove 22a includes A driven pulley 26 that is fitted and fixed to the connecting shaft 24 and is rotated by a belt 28 that is driven by the motor 16 and the drive pulley 27 shown in FIG. 4 is rotatably accommodated. Further, the pulley accommodating groove 22a includes a shaft. The side coupling 25a ₁ and the brush side coupling 25a ₂ coupled to the shaft side coupling 25a ₁ are accommodated, and the drive wheel 10a is accommodated in the wheel accommodating portion 11a.

  On the other hand, the bearing disk 21b shown in FIG. 6 is rotatably accommodated and supported in the bearing groove 21b, the coupling 25b is accommodated in the coupling accommodation groove 22b, and the drive wheel 10b is accommodated in the wheel accommodation part 11b. Is housed.

  Therefore, the rotary brush 7 and the drive wheels 10a and 10b are rotatably supported by the shaft support portions 19a and 19b via the bearing disks 20a and 20b and the bearing grooves 21a and 21b. Further, the rotating brush 7 and the drive wheel 10b can be easily detached from the lower case 4 integrally or separated by the coupling 25b.

  As shown in FIGS. 5 and 7 again, the rotating brush 7 has a plurality of cleaning members 32 attached around a substantially cylindrical rotating brush assembly 31 as an attaching member. The rotating brush assembly 31 is made of, for example, metal or synthetic resin. Further, on the outer peripheral surface of the rotating brush assembly 31, a groove portion 33 that holds the proximal end side of each cleaning member 32 is formed in a spiral shape substantially uniformly in the circumferential direction.

  The cleaning member 32 is, for example, a blade that is a wiping member, brush hair that is a scraping member, or a combination thereof, and the base end side is held in the groove portion 33 of the rotating brush assembly 31, respectively. With respect to the outer peripheral surface of 31, a spiral wall shape along the axial direction of the rotary brush assembly 31, and the distal end side protrudes in the radial direction of the rotary brush assembly 31.

  The driving wheels 10a and 10b are formed in a cylindrical surface shape with a flat outer peripheral surface, short non-woven fabrics 34a and 34b are attached to the outer peripheral surface, and further on the non-woven fabrics 34a and 34b, for example, in the rotational direction. A long-haired non-woven cloth 35a, 35b is attached in a strip shape with an inclination of 20 to 30 °.

  The front cover 6 is formed in a horizontally long shape extending between both ends of the shaft support portions 19a and 19b, and extends along the outer periphery of the rotary brush 7 and the shaft support portions 19a and 19b in a cross-sectional view. The front side of the shaft support portions 19a and 19b is covered. Further, the upper end portion of the front cover 6 is pivotally supported at the tip end portion of the upper case 5 and is always urged upward by a spring member (not shown).

  As shown in FIG. 8, the cover body 14 a provided on the lower surface side of the lower case 4 covers the shaft support portion 19 a shown in FIG. 6 and protrudes outward so as to define a part of the suction port 8. A sliding contact portion 9a is provided in contact with the surface.

  The surface of the sliding contact portion 9a has a smooth arc shape, and a short raised cloth 36a with short hair is attached to the front side (advancing side of the floor brush at the time of cleaning), and on the rear side of the short raised cloth 36a. A long raised cloth 37a having a hair longer than the short raised cloth 36a is attached.

As shown in FIG. 9, in a non-contact state and the lower surface is the surface to be cleaned of the case body 2, the distal end 36a ₁ of the short napped cloth 36a is (near the lower surface) lower than the tip 37a ₁ of NagaOkoshi blankets 37a, both tips Preferably, a step h is provided between 36a ₁ and 37a ₁ . If there is a level difference h, there will be no level difference on the surface to be cleaned during cleaning, it will be able to move smoothly with a long raising cloth, and it will be possible to sweep against the surface to be cleaned with a short raising cloth, and dust will be collected on the floor or carpet. Easy to scrape.

The tip 37a ₁ of the distal end 36a ₁ and NagaOkoshi blankets 37a of the short napped cloth 36a are both facing the rear (backward side of the floor brush during cleaning).

As shown in FIG. 10, in a non-contact state and the lower surface is the surface to be cleaned of the case body 2, and the mounting surface of the short napped 36a, a step is provided on the mounting surface of NagaOkoshi blankets 37a, both tips 36a ₁ , 37a ₁ may be substantially equal in height. When there is a step on the mounting surface, each brushed cloth can move more smoothly, and dust can be trapped, so that it can be easily scraped off.

When retraction of the floor brush 1, easily scraped and hair entangled carpet surface at the tip 36a ₁ of the short napped cloth 36a more reliably.

In the structure shown in FIG. 9 and FIG. 10, when there is a step h between both ends 36a ₁ , 37a _1, there is no step with respect to the surface to be cleaned during cleaning, and it can move smoothly with a long raised cloth, and with a short raised cloth It becomes possible to sweep and clean the surface to be cleaned, and it is easy to scrape dust on the floor or carpet. On the contrary,
As shown in FIG. 11, the cover body 14b is provided with a sliding contact portion 9b so as to cover the shaft support portion 19a (FIG. 5), and the sliding contact portion 9b is short like the sliding contact portion 9a. Raised cloth 36b and long raised cloth 37b are attached.

  In addition, on the extension line of the running direction of the short raising cloths 36a and 36b and the long raising cloths 37a and 37b of the cover bodies 14a and 14b shown in FIG. Make driving easier.

  Reference numeral 39 in the figure denotes an auxiliary wheel whose surface is covered with a raised cloth.

  Next, cleaning using the electric vacuum cleaner according to the present invention will be described.

  When cleaning, first, the operator connects the hose body 55, the extension pipe 59, and the floor brush 1 to the main body suction port 54 of the cleaner body 52 in order.

  Further, when the operator pulls out the power cord from the cleaner main body 52 and connects it to an unillustrated outlet, and then grips the grip portion 57 and operates the predetermined setting button 58, the operation mode set by the setting button 58 is set. Accordingly, the electric blower 53 is driven.

  Then, the operator grips the grip portion 57 and causes the floor brush 1 to run forward and backward on the floor surface. The drive wheels 10a and 10b rotate to help the floor brush 1 travel.

  As the floor brush 1 travels, dust is sucked together with air from the suction port 8 and the wheel housing portions 11a and 11b.

  At this time, since the slidable contact portions 9a and 9b face downward, the slidable contact portions 9a and 9b abut against the surface to be cleaned, and the long raised cloths 37a and 37b attached to the slidable contact portions 9a and 9b. The floor brush 1 is smoothly advanced and retracted without increasing the travel load via the. Moreover, the rotation brush 7 and the drive wheels 10a and 10b can be rotated by the function of the safety device 17 because the wheel 13 is in contact with the floor surface. For example, when the floor brush 1 travels forward (forward), the wheel 13 rotates forward (forward rotation), and when the floor brush 1 travels backward (reverses), the wheel 13 Since the vehicle rotates backward (reverse rotation), the motor control unit controls the rotation direction of the motor 16 to be the same as the rotation direction of the wheel 13 according to the rotation direction of the wheel 13.

  As a result, the rotation of the motor 16 is transmitted to the driven pulley 26 via the drive pulley 27 and the belt 28, so that one of the drive wheels 10a connected to the driven pulley 26 also passes through the coupling 25a. Thus, the rotating brush 7 and the other driving wheel 10b connected to the rotating brush 7 are integrally rotated in the same direction.

  At this time, along with the rotation of the rotating brush 7, each cleaning member 32 scrapes the dust on the floor surface and carries it to the suction port 8, and the short non-woven cloth 34a, 34b attached to the drive wheels 10a, 10b is long. Dust removed by the non-woven cloth 35a, 35b is carried to the suction port 8 through the communication groove 8a.

In the cleaning process, the surface to be cleaned that contacts the sliding contact portions 9a and 9b is difficult to clean by the negative pressure (suction force) generated at the suction port 8, but the short surface attached to the sliding contact portions 9a and 9b shown in FIG. It is cleaned by the raised cloths 36a and 36b and the long raised cloths 37a and 37b, and can be cleaned with almost the entire width of the floor brush 1. Especially when the carpet is cleaned, the carpet surface in contact with the sliding contact portions 9a and 9b is used. tangled hair, etc., difficult to remove by the negative pressure generated in the suction port 8 (suction force), but short napped 36a, the tip 36a ₁ of 36b is NagaOkoshi blankets 37a, substantially the same height as the tip 37a ₁ of 37b will, when traveling on the floor brush 1 to the rear (backward), it is possible to scrape short napped 36a, and hair entangled carpet surface 36b of the tip 36a _1.

Further, by arranging the short raised cloths 36a and 36b on the front side of the sliding contact portions 9a and 9b and the long raised cloths 37a and 37b on the rear side, the long raised cloth 37a can be used when the floor brush 1 runs backward (retreats). , 37b at slipped floor brush 1 smoothly, short napped 36a, so scrape entangled hairs such as carpet surface 36b of the tip 36a _1, the sliding portion 9a without increasing the running load, the running surface of 9b The long raised cloths 37a and 37b that are always in contact with the surface to be cleaned use long hairs, so that the life can be extended even if they are worn.

  According to the floor brush of this embodiment and a vacuum cleaner equipped with the same, the running surface of the sliding contact portion can be sufficiently cleaned without increasing the running load, and in particular, hair attached to the carpet can also be removed. A suction port body and a vacuum cleaner provided with the same are realized.

  In addition, the said structure can be used also for the handy type which can mount an upright type and a floor brush.

The conceptual diagram of the vacuum cleaner of one embodiment of this invention. The perspective view of the suction inlet of one embodiment of the present invention. The bottom view of the suction inlet of one embodiment of the present invention. The top view which removed the case body of the suction inlet of one embodiment of this invention. The top view which removed the rotating brush and cover body of the suction inlet body of one embodiment of this invention. The enlarged view of the bearing part vicinity of the suction inlet of one embodiment of this invention. The disassembled perspective view of the rotating brush of the suction inlet of one embodiment of this invention. The enlarged view of the sliding contact part vicinity of the suction inlet of one embodiment of this invention. The conceptual diagram which shows the attachment state of the short raising cloth of the suction inlet of one embodiment of this invention, and the long raising cloth vicinity. The conceptual diagram of the modified example of the attachment state of the short raising cloth of the suction opening body of one embodiment of this invention, and the long raising cloth vicinity. The enlarged view of the sliding contact part on the opposite side to the sliding contact part shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor brush 2 Case body 3 Connection pipe 4 Lower case 4a Hole part 5 Upper case 6 Front cover 7 Rotating brush 8 Suction port 8a Communication groove part 9a, 9b Sliding contact part 10a, 10b Drive wheel 11a, 11b Wheel accommodating part 12a, 12b Bumper member 13 Wheel 14a, 14b Cover body 15a, 15b Lock member 16 Motor 17 Safety device 18 Wall portion 19a, 19b Shaft support portion 20a, 20b Bearing disc 21a, 21b Bearing groove 22a Pulley housing groove 22b Coupling housing groove 23 Rotating body Assembly 2
24 coupling shaft 25a coupling 25b coupling 25a ₁ brush side coupling 25a ₂ bearing side coupling 26 driven pulley 26a gear portion 27 driving pulley 28 belt 31 rotating brush assembly 32 cleaning member 33 grooves 34a and 34b non-woven cloth 35a and 35b Cloth 36a, 36b Short raising cloth 36a ₁ , 36b ₁ tip 37a, 37b Long raising cloth 37a ₁ , 37b ₁ tip 38a, 38b Rear long raising cloth 51 Electric vacuum cleaner 52 Vacuum cleaner main body 53 Electric blower 54 Main body inlet 55 Body 56 Hand operating part 57 Grip part 58 Setting button 59 Extension pipe h Step R R Communication path

Claims (5)

The case body,
A suction port formed in the case body;
A rotary cleaning body rotatably supported by the suction port;
A pair of sliding contact portions that cover the shaft support portions that support both sides of the rotary cleaning body and that are provided on the lower surface of the case body and that contact the surface to be cleaned;
Provided on the front side of the surface of this sliding contact part,
A suction port body provided on the rear side of the short raised cloth and having a long raised cloth having a longer hair than the short raised cloth. The lower surface of the case body is not in contact with the surface to be cleaned, the tip of the short raised cloth is lower than the tip of the long raised cloth, and a step is provided between the two tips. Suction port body. The lower surface of the case body is in a non-contact state with the surface to be cleaned, a step is provided on the attachment surface of the short raising cloth and the attachment surface of the long raising cloth, and the heights of both ends substantially coincide with each other. The suction inlet body according to claim 1. The suction port body according to any one of claims 1 to 3, wherein a side brush is provided on the outside of the sliding contact portion so as to be rotated together with the rotary cleaning body. A vacuum cleaner body containing an electric blower,
The vacuum cleaner characterized by comprising the suction port body according to any one of claims 1 to 4, which is connected to the vacuum cleaner main body on the suction side of the electric blower.

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