JP2011055906A - Suction port body for vacuum cleaner and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction port body for a vacuum cleaner capable of preventing scratches of a floor surface, and the vacuum cleaner. <P>SOLUTION: The suction port body for the vacuum cleaner includes: a casing 11 on the bottom surface of which a suction port 13 to face the floor surface F is opened; raised cloth 15 disposed at the bottom surface front part of the casing 11; first and second rollers 21 and 22 which are pivoted behind the raised cloth 15 at both sides part of the casing 11 and roll on the floor surface F; and a third roller 23 which is pivoted behind the first and second rollers 21 and 22 of the casing 11 and roll on the floor surface F. By the first, second and third rollers 21, 22 and 23, the suction port 13 and the raised cloth 15 are separated from the floor surface F by a predetermined distance, and the posture of the casing 11 is held. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a suction port for a vacuum cleaner having a roller that rolls on the floor and a raised cloth facing the floor, and a vacuum cleaner using the same.

  A conventional suction port for a vacuum cleaner is disclosed in Patent Document 1. This vacuum cleaner suction port body has a suction port facing the floor surface opened at the front part of the bottom surface of the housing, and a rotating brush is disposed in the suction port. Brushed cloth is attached to the bottom surface of the housing on both sides of the front suction port and on the left and right ends of the rear. The raised cloth is formed by flocking a fibrous resin on a resin substrate. A roller that rolls on the floor is pivotally supported at the rear of the housing.

  When the roller and the raised cloth are grounded to the floor surface, the suction port and the floor surface are separated from each other by a predetermined distance, and the posture of the vacuum cleaner suction port body is maintained. As the roller rolls on the floor surface, the brushed fabric slides on the floor surface, and the suction port for the vacuum cleaner moves back and forth to suck the dust on the floor surface from the suction port. The raised cloth can prevent the floor surface from being damaged by sliding between the housing and the floor surface.

Japanese Patent Laid-Open No. 2008-54815 (page 3 to page 9, FIG. 8)

  However, according to the conventional suction inlet for an electric vacuum cleaner, the surface of the raised cloth that slides on the floor surface is abraded by long-term use, and the base body is exposed. For this reason, there existed a problem which the base | substrate of a raising cloth slid on a floor surface and damaged the floor surface.

  An object of this invention is to provide the suction inlet for vacuum cleaners and a vacuum cleaner which can prevent the damage | wound of a floor surface over a long period of time.

  In order to achieve the above object, a suction port for a vacuum cleaner according to the present invention includes a housing that opens a suction port facing the floor surface on the bottom surface, and a brushed cloth that is disposed on the bottom front portion of the housing. First and second rollers that are pivotally supported behind the raised cloth on both sides of the housing and roll on the floor surface, and are pivotally supported behind the first and second rollers of the housing. A third roller that rolls on the floor surface, and the first, second, and third rollers hold the suction port and the raised cloth away from the floor surface by a predetermined distance so that the posture of the housing is maintained. It is characterized by being.

  According to this configuration, the raised cloth is arranged at the front part of the bottom surface of the housing, and the first, second, and third rollers are arranged behind the raised cloth. The posture of the housing is maintained so that the suction port is separated from the floor surface by a predetermined distance by the first, second, and third rollers. At this time, the raised cloth is disposed away from the floor surface. A roller rolls on the floor and dust is sucked from the suction port. When the suction opening for the vacuum cleaner is tilted forward, the raised cloth slides on the floor surface to prevent the floor surface from being damaged. Further, if there is a step on the floor surface, the first and second rollers ride on the step after the raised cloth slides on the step.

  According to the present invention, in the suction port body for a vacuum cleaner having the above-described configuration, an intake groove for sucking air into the suction port from the side of the housing is recessed in the bottom surface of the housing, and the first and second rollers are provided. It protrudes into the intake groove. According to this configuration, when dust is sucked from the suction port, the dust on the side of the housing is guided to the suction port through the intake groove. When there is a step on the floor, the first and second rollers protruding into the intake groove ride on the step, and collision between the intake groove and the step is avoided.

  Further, the present invention is characterized in that, in the vacuum cleaner suction port body having the above-described configuration, a rotary brush disposed in the suction port is provided, and the first and second rollers are disposed rearward of the rotary brush. . According to this configuration, the dust buried in the carpet or the like is scraped up by the rotating brush and sucked from the suction port. The first and second rollers are disposed behind the rotating brush so as to avoid the rotating brush drive. Thereby, a rotating brush is arrange | positioned ahead and the residue of dust near a wall surface is prevented.

  Further, the present invention provides a vacuum pipe suction port body configured as described above, wherein an airflow sucked from the suction port flows out and is supported by the support portion so as to be tiltable back and forth with respect to the housing. And the third roller is arranged behind the support portion. According to this configuration, the extension pipe whose rear end is gripped by the user is connected to the pipe portion, and the pipe portion is tilted for cleaning. A 3rd roller is arrange | positioned behind the support part to which the force by the weight of an extension pipe is added, and the attitude | position of the suction inlet for vacuum cleaners is stabilized.

  Further, the present invention is characterized in that, in the suction port body for a vacuum cleaner having the above-described configuration, a bottom front end of the housing is formed of an inclined surface, and the raised cloth is extended to the inclined surface. According to this configuration, when there is a step on the floor surface, the raised cloth extending to the inclined surface slides on the step and rides up.

  Moreover, the vacuum cleaner of the present invention is characterized by including the suction mouth for the vacuum cleaner having the above-described configuration.

  According to the present invention, the raised cloth is provided at the front part of the bottom surface of the casing that opens the suction port so as to be separated from the floor surface, and the attitude of the casing is adjusted by the first, second, and third rollers arranged behind the raised cloth. Since it hold | maintained, a raising cloth does not contact with a floor surface at the time of normal use, and when the suction inlet for vacuum cleaners inclines forward, it slides with a floor surface. For this reason, abrasion of the raised fabric is suppressed, and scratches on the floor surface due to abrasion of the raised fabric can be prevented. Therefore, it is possible to prevent the floor surface from being scratched over a long period of time.

Side surface sectional drawing which shows the vacuum cleaner of embodiment of this invention The side view which shows the suction inlet body of the vacuum cleaner of embodiment of this invention The bottom view which shows the suction inlet body of the vacuum cleaner of embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1: has shown side surface sectional drawing of the vacuum cleaner of one Embodiment. The vacuum cleaner 1 has a main body 2 that houses an electric blower 3, and a flexible connection hose 4 is attached to the main body 2. An extension pipe 6 is connected to the end of the connection hose 4, and a gripping part 5 that is branched from the connection part with the extension pipe 6 and gripped by the user is provided. A suction port body 10 is connected to the tip of the extension pipe 6.

  2 and 3 show a side view and a bottom view of the suction port body 10. The suction inlet 10 is covered with a housing 11 made of a resin molded product. The housing 11 has a suction part 11a having a suction port 13 facing the floor F at its bottom surface and an extension part 11b extending rearward from the central part of the suction part 11a and is formed in a substantially T shape in plan view. Is done. The front end of the bottom surface of the suction part 11a is formed on an inclined surface 11c whose back is lowered.

  A tubular pipe portion 12 that communicates with the suction port 13 and is connected to the extension tube 6 is provided on the upper portion of the extension portion 11b. The pipe portion 12 is supported by a support portion 11d (see FIG. 1) having a cylindrical surface provided on the housing 11 at a tip portion 12a (see FIG. 1) formed on the cylindrical surface. The distal end portion 12a slides on the inner surface of the support portion 11d, and the pipe portion 12 is tiltable with respect to the casing 11 in the front-rear direction at the rotation center 12b.

  A rotating brush 19 that rotates in contact with the floor surface F is provided in the suction port 13. The bottom surface of the housing 11 is recessed with an intake groove 14 that opens the side surface of the housing 11 and communicates with the rear side of the suction port 13. Dust can be sucked from the side of the housing 11 through the intake groove 14.

  Brushed cloths 15 are attached to the front part of the housing 11 on both sides of the suction port 13. The raised cloth 15 extends from a position parallel to the floor surface F to the inclined surface 11c. The raised cloth 15 is formed by implanting a fibrous resin having high wear resistance such as nylon or fluororesin on a resin base such as nylon.

  Rollers 21 and 22 (first and second rollers) are pivotally supported on both sides of the casing 11 behind the raised cloth 15. The front portions of the rollers 21 and 22 are arranged so as to protrude into the intake groove 14. A roller 23 (third roller) is pivotally supported at the rear end of the extending portion 11b of the housing 11, and the roller 23 is disposed behind the support portion 11d. Further, a roller 24 is provided at the rear portion of the suction portion 11a so as to be biased to one side in the left-right direction.

  When the rollers 21 to 24 are grounded to the floor surface F, the posture of the housing 11 is maintained so that the suction port 13 is arranged in parallel with a predetermined distance away from the floor surface F. At this time, a predetermined amount of gap D is formed between the raised cloth 15 and the floor surface F. Note that the roller 24 may be omitted, and the rollers 21 to 23 may be grounded to hold the posture of the housing 11 at three points.

  In the rollers 21 to 24, an elastomer resin is insert-molded on a hard member such as polyacetal that is pivotally supported by the housing 11. The rollers 21 to 24 can follow the floor surface F by the elasticity of the elastomer resin.

  A fibrous resin with high wear resistance, such as nylon or fluororesin, is implanted on the elastomer resin by electrostatic adsorption or adhesion with an adhesive. The scratches on the floor surface F when the rollers 21 to 24 slide with the floor surface F can be prevented by the fibrous resin.

  When the user grips the grip portion 5 and pushes or pulls the extension pipe 6, the rollers 21 to 24 roll on the floor surface F and the suction port body 10 moves on the floor surface F. At this time, the raised cloth 15 is provided with the gap D, so that sliding with the floor surface F is avoided.

  As the electric blower 3 is driven, dust on the floor surface F is sucked from the suction port 13, and dust on the side of the suction port body 10 is sucked through the suction groove 14 and guided to the suction port 13. Further, the dust buried in the carpet or the like is scraped up by the rotating brush 19 and sucked from the suction port 13. Dust sucked from the suction port 13 flows out from the pipe portion 12 and is collected in the main body portion 2 through the extension pipe 6 and the connection hose 4.

  If the suction inlet 10 inclines forward, the raising cloth 15 will slide on the floor surface F, and the damage of the floor surface F will be prevented. Moreover, since the 3rd roller 23 is distribute | arranged behind 11 d of support parts to which the force by the weight of the extension pipe 6 is added, stability of the suction inlet body 10 improves. Thereby, sliding with the raising cloth 15 and the floor surface F is reduced.

  Further, if there is a step on the floor surface F, the raised cloth 15 slides on the step and rides up, and the front portion of the suction port body 10 is lifted. Thereafter, the rollers 21 to 24 ride on the step. At this time, the raised cloth 15 easily climbs the step due to the gap D and is arranged on the inclined surface 11c, so that the step can be climbed more easily. Moreover, since the front part of the suction inlet 10 is lifted, the rollers 21-24 can ride on a level | step difference easily.

  In addition, since the rollers 21 and 22 protrude from the intake groove 14, collision between the intake groove 14 and the step can be avoided and the suction port body 10 can easily climb the step.

  According to this embodiment, the raised cloth 15 is provided apart from the floor surface F at the bottom front part of the housing 11 that opens the suction port 13, and the rollers 21, 22, and 23 (first) arranged behind the raised cloth 15. , The second and third rollers) hold the posture of the casing 11, so that the raised cloth 15 does not contact the floor surface F during normal use and slides with the floor surface F when the suction port body 10 tilts forward. To do. For this reason, wear of the raised cloth 15 is suppressed, and scratches on the floor surface F due to wear of the raised cloth 15 can be prevented. Therefore, scratches on the floor surface F can be prevented over a long period of time.

  Moreover, when the floor surface F has a level | step difference, the raising cloth 15 slides with a level | step difference, the front part of the suction inlet body 10 is lifted, and the rollers 21 and 22 can ride on a level | step difference easily. Therefore, the convenience of the suction inlet 10 can be improved.

  Further, since the intake groove 14 for sucking air into the suction port 13 from the side of the casing 11 is recessed in the bottom surface of the casing 11 and the rollers 21 and 22 protrude into the intake groove 14, It is possible to avoid the collision and the suction port body 10 can more easily climb the step.

  Further, since the rollers 21 and 22 are arranged behind the rotating brush 19, the rollers 21 and 22 can be easily attached while avoiding the driving portion of the rotating brush 19, and the rotating brush 19 is arranged in the front and the wall surface. Residual dust in the vicinity can be prevented.

  In addition, since the roller 23 (third roller) is disposed behind the support portion 11d that supports the pipe portion 12 so as to be tiltable to the housing 11, the posture of the suction port body 10 can be stabilized. Accordingly, the sliding between the raised cloth 15 and the floor surface F is further reduced to suppress wear, and scratches on the floor surface F can be prevented for a longer period.

  Further, since the raised cloth 15 is extended to the inclined surface 11c provided at the front end of the bottom surface of the housing 11, the step on the floor surface F can be more easily climbed.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the vacuum cleaner which has the suction inlet body which moves on a floor surface.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 2 Main body part 3 Electric blower 4 Connection hose 5 Holding part 6 Extension pipe 10 Suction inlet 11 Housing 11a Suction part 11b Extension part 11c Inclined surface 11d Support part 12 Pipe part 13 Suction inlet 14 Intake groove 15 Raising Blanket 19 Rotating brush 21, 22, 23, 24 Roller

Claims (6)

  A casing that opens a suction port facing the floor surface on the bottom surface, a raised cloth disposed on the bottom front of the casing, and a floor that is pivotally supported behind the raised cloth on both sides of the casing. A first and second roller that rolls on the surface, and a third roller that is pivotally supported behind the first and second rollers of the housing and rolls on the floor surface. 2. The suction port body for a vacuum cleaner, wherein the suction port and the raised cloth are separated by a predetermined distance from the floor surface by the third roller to maintain the posture of the housing.   2. The intake groove according to claim 1, wherein an intake groove for sucking air from the side of the housing into the suction port is recessed in the bottom surface of the housing, and the first and second rollers protrude into the intake groove. Suction mouth for vacuum cleaners.   The vacuum cleaner suction port according to claim 1, further comprising a rotary brush disposed in the suction port, wherein the first and second rollers are disposed rearward of the rotary brush. .   An airflow sucked from the suction port flows out, and is provided with a tubular pipe portion that is supported by the support portion so as to be tiltable back and forth with respect to the housing, and the third roller is disposed behind the support portion. The suction inlet for vacuum cleaners in any one of Claims 1-3 characterized by these.   The suction mouth for a vacuum cleaner according to any one of claims 1 to 4, wherein the front end of the bottom surface of the housing is formed of an inclined surface, and the raised cloth is extended to the inclined surface.   The vacuum cleaner provided with the suction inlet for vacuum cleaners in any one of Claims 1-5.

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