JP5242179B2 - Vacuum cleaner inlet and vacuum cleaner - Google Patents

Description

  The present invention relates to a suction port body of a vacuum cleaner provided with a drive unit having a fan that can be rotated by intake air from the suction port, and a vacuum cleaner including the suction port body.

  As a suction port body of a conventional vacuum cleaner, Patent Document 1 discloses that a flat air turbine is rotated by an intake air sucked from an intake port formed in the suction port body. The suction port body which rotates the rotary brush provided in is described. The suction port body includes a horizontally long case body having an intake port on the upper side. In the case body, a rotary cleaning body chamber for housing the rotating brush is formed on the front side, and a suction chamber having a suction port on the lower side is formed at the rear side of the rotary cleaning body chamber. A drive chamber communicating with the mouth is formed on the upper rear side of the rotary cleaning body chamber.

Further, Patent Document 2 includes a raised cloth provided below the suction port on the rear side of the rotary brush, and the brushed cloth is formed by an electromagnet housed in the suction port. A suction port body that is horizontally reciprocated in the front-rear direction is described.
JP-A-9-248260 JP-A-5-184492

  In the suction port body of the conventional vacuum cleaner described in Patent Documents 1 and 2, the rotation shaft of the rotary brush provided in the suction port body intersects with the traveling direction of the suction port body and is configured in a substantially orthogonal direction. . That is, the bristles provided on the rotating brush scratch the floor surface along the front-rear direction, which is the traveling direction of the suction port body, as the rotating brush rotates.

  Here, for example, a floor formed by combining a plurality of plate materials such as flooring has grooves such as joints and scratches. When the suction port is moved in the direction along the groove and the brush bristles scratch the floor surface, the dust caught in the groove can be easily removed.

  On the other hand, when the suction mouth is moved in the direction crossing the groove and the brush bristles scratch the floor surface, the bent bristles coming into contact with the floor surface enter the back of the groove and get caught in dust. The time for passing through the groove width by rotational movement is shorter than the time for restoring until it reaches, and it is difficult to scrape the dust caught between the tip of the brush bristles reaching the back of the groove and entering the back of the groove.

  That is, in the suction port body of the conventional vacuum cleaner, when the suction port body is moved in the direction crossing the groove, it is difficult to scrape and clean the dust caught in the groove, and the direction along the groove Again, it was necessary to move and clean the suction port.

  The present invention relates to the suction of a vacuum cleaner that has a groove in a direction intersecting the traveling direction of the suction port body and can easily scrape dust caught in the groove and clean it without changing the traveling direction. Suggest mouth and vacuum cleaner.

In order to solve the above problems, in the present invention, an electric blower that generates a suction negative pressure , a suction port that faces the surface to be cleaned and sucks air by the action of the suction negative pressure, and the cleaning target is more than the suction port. An intake port that is separated from the surface and sucks air by the action of the suction negative pressure; a drive unit having an air turbine that is rotated by the air sucked from the intake port; and a rotary cleaning body that is driven by the drive unit; A reciprocating cleaning body which is opposed to the surface to be cleaned and is provided so as to be capable of horizontal reciprocation in a direction substantially parallel to the rotation axis of the rotary cleaning body, a rotary shaft which is integrated with the air turbine, and the rotary shaft A crank pin that protrudes from the end of the rotary shaft and moves circularly about the rotation center line of the rotary shaft when the rotary shaft rotates;
And a yoke portion that is provided in the reciprocating cleaning body and into which the crank pin is inserted to convert circular motion of the crank pin into horizontal reciprocating motion of the reciprocating cleaning body .

  According to the present invention, when there is a groove in the direction crossing the traveling direction of the suction port body, the vacuum cleaner capable of easily scraping dust sandwiched in the groove and cleaning it without changing the traveling direction. The suction port body and the vacuum cleaner can be provided.

  DESCRIPTION OF EMBODIMENTS Embodiments of a suction port body and a vacuum cleaner according to the present invention will be described with reference to FIGS. 1 to 5.

  FIG. 1 is a view showing an appearance of a vacuum cleaner according to the present invention.

  As shown in FIG. 1, a vacuum cleaner 1 according to the present invention includes a vacuum cleaner main body 2 having a connection port 2a formed on the front surface, and a bendable elongated shape that is detachably connected to and communicated with the connection port 2a. A cylindrical flexible hose body 3, a hand operating part 4 provided at the distal end of the flexible hose body 3, and projecting from the hand operating part 4 toward the base end side to clean the user Gripping part 5 that grips, a setting button 6 that is provided in the gripping part 5 and that sets the electric vacuum cleaner 1 in a plurality of drive modes, and is detachably connected to the tip of the hand operating part 4 so as to be extendable and retractable And a suction port body 8 for sucking dust on a surface to be cleaned such as a floor surface, which is detachably connected to the distal end of the extension tube 7.

  The vacuum cleaner body 2 is housed therein, and collects the electric blower 9 that applies a negative pressure to the suction port body 8 through the connection port 2a, and the dust sucked together with the air by the negative pressure generated by the electric blower 9. A detachable dust collecting pack (not shown), and an exhaust port (not shown) for exhausting the air collected in the dust collecting pack to the outside of the cleaner body 2 as exhaust air from the electric blower 9. Prepare.

  FIG. 2 is a plan view of the vacuum cleaner according to the present invention, with a part of the suction port cut away.

  As shown in FIG. 2, the suction port body 8 of the vacuum cleaner 1 includes a horizontally long case body 10 and a connecting pipe that is connected to and communicates with the extension pipe 7 of the vacuum cleaner 1 provided at the rear of the case body 10. Part 11.

  For ease of explanation, the posture shown in FIG. 2 is a basic posture, the connection pipe portion 11 to which the extension pipe 7 is connected to the suction port body 8 is a rear portion, and the side facing this is a front portion. Furthermore, the vertical and horizontal directions will be described in a state where the rear part is viewed from the front part.

  The case body 10 includes a lower case 13 whose upper side is open, an upper case 14 that closes the upper side of the lower case 13, a middle case 15 provided between the lower case 13 and the upper case 14, and a case body 10 And a bumper (not shown) sandwiched between the lower case 13 and the upper case 14 and continuing from the side of the front cover 16 to both sides of the case body 10. .

  A rotary cleaning body chamber 20 that houses a rotary cleaning body 19 as a rotary cleaning body is formed by a lower case 13 and a front cover 16 inside the front side of the case body 10. The rotary cleaning body chamber 20 holds the rotating shaft of the rotary cleaning body 19 in the width direction of the case body 10.

  A suction chamber 22 that sucks air and dust contained in the air is formed behind the rotary cleaning body chamber 20 by the negative pressure generated by driving the electric blower 9 accommodated in the cleaner body 2. In the suction chamber 22, a horizontally-long rectangular suction port 23 for sucking dust is formed and communicated behind one side in the width direction of the rotary cleaning body chamber 20, for example, right rear. The upstream side of the connecting pipe portion 11 communicates with the rear portion of the suction chamber 22.

  On the other hand, a drive chamber 25 that houses a drive unit 24 that rotationally drives the rotary cleaning body 19 is formed behind one side in the width direction of the rotary cleaning body chamber 20, for example, the left rear. Airtightness is maintained between the drive chamber 25 and the suction chamber 22. The suction port 23 formed in the suction chamber 22 and the drive chamber 25 are juxtaposed behind the rotary cleaning body chamber 20.

  The drive unit 24 includes an air turbine 24 a and a transmission unit 24 b that transmits the rotation of the air turbine 24 a to the rotary cleaning body 19.

  In the drive chamber 25, a transmission chamber 26 in which a transmission portion 24b constituting the drive portion 24 is accommodated is formed. The transmission chamber 26 is formed side by side with the suction chamber 22.

  Furthermore, one end of the rotary cleaning body 19 is inserted on one side in the width direction of the rotary cleaning body chamber 20, for example, the left side, and a driving force is applied to the rotary cleaning body 19 from the drive unit 24 accommodated in the drive chamber 25. A side transmission chamber 27 that houses the transmission section 24b to be transmitted is formed.

  The lower case 13 forms a substantially horizontally long rectangular plate-like lower case main body 28 and a lower part of the case body 10 in a plan view, and a lid of a side transmission chamber 27 detachably provided on the left side of the lower case main body 28. And a projecting portion 30 that is formed in a convex shape from the rear portion of the lower case main body 28 and covers the front end side of the connecting pipe portion 11.

  The lower case body 28, the upper case 14, and the middle case 15 are integrally fixed by a plurality of screws.

  The lower case body 28 has a front wall portion 31 and a side wall portion 32. The front wall portion 31 is substantially parallel to the rotation axis of the rotary cleaning body 19 accommodated in the rotary cleaning body chamber 20 and is formed substantially perpendicular to the bottom surface of the lower case body 28, and is located behind the rotary cleaning body chamber 20. Forming a wall. The side wall portion 32 is positioned at the left and right side end portions of the front wall portion 31 to form a side wall portion of the rotary cleaning body chamber 20. Between the left and right side wall portions 32, an opening portion 33 provided with a front cover 16 that forms the rotary cleaning body chamber 20 is formed.

  That is, the rotary cleaning body chamber 20 is formed by the front wall portion 31, the side wall portion 32, and the front cover 16 provided in the opening portion 33 of the lower case main body 28.

  At the left end portion of the front wall portion 31, a wall portion extending toward the rear of the lower case main body 28, and a wall portion extending toward the right of the lower case main body 28 from the tip portion of the wall portion. The rear partition wall part 34 which consists of these is provided. A drive chamber 25 is formed between the rear partition wall 34 and the front wall 31. A side transmission chamber 27 is formed on the left side of the side wall portion 32 that forms the rotary cleaning body chamber 20 and the rear partition wall portion 34 that forms the drive chamber 25.

  On the upper surface of the projecting portion 30, a fitting groove 38 into which the distal end portion of the connecting pipe portion 11 is fitted is provided.

  The upper case 14 is formed in a horizontally long rectangular plate shape corresponding to the shape of the lower case 13.

  In the right rear portion of the upper case 14, an air inlet 39 composed of a plurality of small-diameter round holes communicating with the drive chamber 25 is formed. The intake port 39 can be provided at any position as long as it is located above the intake port 23 and other than the front side of the case body 10. That is, the air inlet 39 is provided at a position farther from the surface to be cleaned than the air inlet 23 of the case body 10.

  The middle case 15 is formed integrally with an intake chamber wall 41 that forms an intake chamber 40 that communicates with an intake port 39 that sucks in air that drives an air turbine 24 a that constitutes the drive unit 24, and the intake chamber wall 41. And a turbine chamber wall 43 that forms a turbine chamber 42 that abuts the upper case 14 and accommodates the air turbine 24 a provided in the drive chamber 25.

  The intake chamber wall portion 41 is formed in a horizontally long rectangular shape in plan view and is positioned along a substantially horizontal direction, and includes an intake chamber 40 communicated with an intake port 39 for sucking air for driving the air turbine 24a, and dust. The suction chamber 22 communicated with the suction port 23 for sucking air is partitioned vertically.

  The turbine chamber wall 43 introduces an introduction air passage 44 that introduces air (intake air) sucked into the intake chamber 40 from the intake port 39 into the turbine chamber 42 and drives the air turbine 24 a to flow to the connection pipe portion 11. Form. Further, the turbine chamber wall 43 has a wall main body 45 formed on the outer periphery of the air turbine 24a so as to be separated by a slight gap. The upper end of the wall main body 45 is in contact with the upper case 14. A turbine chamber 42 is formed between the upper case 14 and the turbine chamber wall 43. An intake chamber wall 41 is continuously formed in the right front portion of the wall main body 45.

  The air turbine 24 a housed in the turbine chamber 42 of the drive chamber 25 includes a flat turbine body 48 that is circular in plan view, and a rotating shaft 49 that is provided integrally with the turbine body 48. The air turbine 24 a is located at the approximate center in the width direction of the case body 10 of the suction port body 8.

  The transmission part 24b accommodated in the transmission chamber 26 of the drive chamber 25 is a so-called gear box. The transmission portion 24b is formed on the left side of the transmission chamber 26 from the transmission portion main body 50, a drive pulley 51 that projects downward from the transmission portion main body 50 and rotates in the horizontal direction. A transmission pulley 52 that protrudes from the side transmission chamber 27 and rotates in the vertical direction, a belt 53 wound between the rotation shaft 49 of the air turbine 24a and the drive pulley 51, the transmission pulley 52, and the rotary cleaning body 19 A transmission belt 54 wound around the bearing 55.

  A power transmission mechanism such as a bevel gear (not shown) that converts the rotational motion transmitted from the air turbine 24 a to the drive pulley 51 via the belt 53 into the rotational motion of the transmission pulley 52 is provided in the transmission portion main body 50. It is done.

  The transmission pulley 52 transmits the rotational motion of the air turbine 24 a transmitted from the drive pulley 51 to the rotary cleaning body 19.

  The front cover 16 is formed of a material such as a synthetic resin having some flexibility, is formed in a convex arc shape in a longitudinal sectional view, and is formed from a horizontally long front cover body 57 and an upper end portion of the front cover body 57 in a plan view. And a projecting portion 58 projecting rearward. Further, the front cover 16 is pivotally supported by a rotation shaft 59 provided along the width direction at the front end portion of the upper case 14, and is configured to be rotatable in the front-rear direction.

  The protruding portions 58 are separated from each other in the width direction of the case body 10 and are formed in a quadrangular shape in plan view.

  The rotation shaft 59 is formed of a member such as metal, for example. Torsion springs (not shown) are attached to both ends of the rotation shaft 59, and the front cover 16 is urged forward.

  The connecting pipe portion 11 is pivotally supported with respect to the case body 10 so as to be rotatable in the circumferential direction and the vertical direction. Further, the connecting pipe portion 11 is connected to the extension pipe 7 on the downstream side which is the rear end portion. That is, the suction port 8 is communicated with the electric blower 9 accommodated in the cleaner body 2 through the extension pipe 7, the flexible hose body 3, and the connection port 2 a of the cleaner body 2.

  FIG. 3 is a longitudinal sectional view showing a suction port body of the electric vacuum cleaner according to the present invention.

  As shown in FIG. 3, a front wall portion 31 formed on the lower case 13, a side wall portion 32, and an upper end of the front wall portion 31 are disposed inside the front side of the case body 10 of the suction port body 8 of the vacuum cleaner 1. The front side of the opening 33 formed from the front side to the lower side of the case body 10 by the extension part 63 extending substantially horizontally forward from the front wall part 31, the extension part 63, and the side wall part 32. A rotary cleaning body chamber 20 containing the rotary cleaning body 19 is formed by the front cover 16 to be covered.

  The rotary cleaning body 19 has a plurality of, for example, six mounting groove portions 65, and is provided in a substantially elongated cylindrical shaft body 67 that is pivotally supported by the side wall portion 32 via a bearing 55, and the mounting groove portion 65. And a cleaning unit 68 constituting the outer peripheral surface of the cleaning body 19.

  The attachment groove portions 65 are formed in a spiral shape along the axial direction of the shaft body 67 and are separated from each other in the circumferential direction.

  The cleaning part 68 is projected in a state where a plurality of attachment parts 69 that are base ends attached to the attachment groove part 65 of the shaft body 67 and a plurality of attachment parts 69 are bundled. And bristles 70 in contact with the surface F to be cleaned. The brush bristles 70 are attached to the shaft body 67 so as to protrude in the radial direction of the rotary cleaning body 19.

  The cleaning unit 68 may include a combination of the brush bristles 70 and a blade (not shown) or a blade only. Furthermore, the attachment groove 65 provided with the cleaning part 68 may be formed in a spiral shape in the longitudinal axis direction of the shaft body 67.

  A suction groove 73 as a horizontally long air passage communicating with the suction port 23 of the lower case body 28 is formed behind the rotary cleaning body chamber 20 formed in the lower case body 28.

  A partition wall 74 that partitions the rotary cleaning body chamber 20 and the suction groove 73 is formed between the front end portion of the suction groove 73 and the rear end portion of the rotary cleaning body chamber 20. A communication passage 76 that allows the rotary cleaning body chamber 20 and the suction groove 73 to communicate with each other is formed in the partition wall 74. Therefore, the partition wall portion 74 in which the communication path 76 is formed is formed in a convex rib shape.

  Behind the suction port 23 and the suction groove 73 of the lower case main body 28 is provided a raised cloth 77 as a cleaning body that is elongated in the longitudinal direction of the width of the case body 10. The raised cloth 77 is formed to protrude slightly below the lower surface of the lower case 13. Further, the raised cloth 77 is provided in a slide base 79 that is held in a linear motion bearing groove 78 formed on the lower surface of the lower case 13 so as to be able to reciprocate horizontally in the longitudinal direction of the case body 10. That is, the raised cloth 77 is a reciprocating cleaning body configured to be able to reciprocate horizontally on the surface F to be cleaned in the longitudinal direction of the suction port body 8. The rotational axis of the rotary cleaning body 19 and the direction of the horizontal reciprocation of the raised cloth 77 are configured to be substantially parallel.

  A yoke part 80 is formed on the upper surface of the slide base 79 so as to protrude into the transmission chamber 26. A substantially elliptical elongated hole (not shown) having a long diameter in the width direction is formed in the bottom wall of the transmission chamber 26, and a spacer having an axial dimension longer than the thickness of the bottom wall of the transmission chamber 26 is substantially elliptical. The slide base 79 is inserted into the linear motion bearing groove 78 by clamping the slide base 79 with a fastening member (not shown) such as a rivet or screw having a head larger than the short diameter of the elongated hole. It can also be held so as to be capable of horizontal reciprocation in the width direction.

  A rear suction port 83 communicated with the suction side of the connecting pipe portion 11 is formed behind the raised cloth 77 of the case body 10.

  On the lower surface of the protruding portion 30 formed at the rear portion of the case body 10, a blocking wall 84 that partitions the inside of the protruding portion 30 is provided. Between the blocking wall 84 and the surface to be cleaned F such as a floor surface, a rear raised cloth 85 is provided as a rear cleaning body that continues from both sides in the width direction of the rear suction port 83 to the rear. The rear suction port 83 is surrounded by a raised cloth 77 and a rear raised cloth 85 in plan view.

  The front end portion of the upper case 14 is curved downward to cover the front end portion of the extending portion 63 of the lower case 13.

  The rear portion of the central region in the width direction of the upper case 14 is formed so as to protrude above the base end portion of the protruding portion 30 of the lower case 13 and is fitted to the outer periphery of the connecting tube portion 11 on the front end side.

  On the lower part of the upper case 14, a ring-shaped rib 87 that fits in the middle case 15 is projected downward. The drive chamber 25 is formed by the rib 87 of the upper case 14 and the middle case 15.

  The intake chamber wall portion 41 formed in the middle case 15 is formed in a horizontally long rectangular shape in plan view and is positioned along a substantially horizontal direction, and the front end of the portion adjacent to the turbine chamber wall portion 43 is the introduction air passage 44. A concave shape is formed downward.

  The turbine chamber wall 43 formed in the middle case 15 is provided with a substantially bottomed cylindrical wall main body 45 and a bottom projecting from the center of the bottom of the wall main body 45 so that the air turbine 24a can be rotatably supported. And an air passage that forms an introduction air passage 44 that protrudes from the front of the shaft support 90 at the bottom of the wall main body 45 and continues to the rear lower end of the shaft support 90 along the periphery of the shaft support 90. And a partition 92.

  The shaft support 90 is provided with a communication hole 93 at the center for communicating the turbine chamber 42 and the transmission chamber 26, and is formed in a substantially cylindrical shape. A middle case rib 95 projects downward from the lower end of the rear side of the shaft support 90. The lower end portion of the middle case rib 95 is fitted to the upper end portion of the lower case rib 96 that protrudes upward from the lower case 13. The middle case rib 95 and the lower case rib 96 keep the rear suction port 83 and the drive chamber 25 airtight.

  The air passage partitioning portion 92 is inclined upwardly and convexly upward from the lower end portion of the shaft support portion 90 and continues to the bottom portion of the turbine chamber wall portion 43 and the intake chamber wall portion 41. The front end portion of the air passage partition portion 92 is formed in contact with the upper end portion of the front wall portion 31 of the lower case 13.

  The air turbine 24 a housed in the turbine chamber 42 of the drive chamber 25 includes a flat turbine body 48 that is circular in plan view, and a rotating shaft 49 that is provided integrally with the turbine body 48.

  The turbine main body 48 includes a disk-shaped top plate 100 and a plurality of turbine blades 101 projecting from the bottom of the top plate 100. The turbine blades 101 are formed in an arc shape that is curved in the circumferential direction from the central axis side of the turbine body 48 toward the outer peripheral edge of the top plate 100, and are spaced apart at substantially equal intervals in the circumferential direction of the turbine body 48. It faces the introduction air passage 44. The air turbine 24 a is rotated by receiving the air flow passing through the introduction air passage 44 by the turbine blades 101.

  The rotating shaft 49 is inserted into the shaft support 90 and is rotatably held by retaining rings 102 and 103 provided above and below the shaft support 90. The retaining rings 102 and 103 are engaged with step portions 104 and 105 formed in the shaft support 90, respectively. A crankpin 108 is formed at the lower end of the rotating shaft 49 so as to protrude downward from a position eccentric from the central axis of the rotating shaft 49.

  The rotation shaft 49 transmits the rotational motion of the air turbine 24 a to the drive pulley 51 of the transmission unit main body 50 accommodated in the transmission chamber 26 via the belt 53. The transmission unit main body 50 converts the rotational motion of the drive pulley 51 transmitted from the air turbine 24 a via the belt 53 into the rotational motion of the transmission pulley 52. The transmission pulley 52 transmits the rotational motion of the air turbine 24 a transmitted from the drive pulley 51 to the rotary cleaning body 19.

  The crank pin 108 formed on the rotating shaft 49 is inserted into a yoke portion 80 provided so as to protrude from the slide base 79 of the raised cloth 77 into the transmission chamber 26. The yoke portion 80 has a long side in the front-rear direction of the suction port 8 and a short side in which the crank pin 108 can be inserted in the width direction of the suction port 8. Is formed, and the crank pin 108 is inserted into the hole. When the rotary shaft 49 is rotated by the rotary motion of the air turbine 24 a, the crankpin 108 moves circularly around the central axis of the rotary shaft 49, and the horizontal reciprocation of the slide base 79 in the width direction of the suction port body 8 via the yoke portion 80. Exercise.

  The front cover 16 includes a front cover body 57 formed in a convex arc shape on the front side, and a projecting portion 58 projecting rearward from the upper end portion of the front cover body 57, and the front end portion of the upper case 14. Are pivotally supported by a pivot shaft 59 provided along the width direction so as to be pivotable in the front-rear direction.

  The front cover body 57 forms the front side wall of the rotary cleaning body chamber 20. The lower end portion of the front cover main body 57 extends to the horizontal height position of the central axis of the shaft body 67 of the rotary cleaning body 19. In the front portion of the front cover main body 57, a concave portion 110 having a concave arc shape in cross section is formed along the width direction of the case body 10.

  On the rear surface side of the front cover main body 57, reinforcing cover ribs 111 are provided along the front-rear direction. A plurality of cover ribs 111 are provided apart from each other in the width direction of the case body 10.

  The rear end portion of the projecting portion 58 is fitted into a notch fitting recess 112 formed in a notch on the top end of the extending portion 63 formed in the lower case 13. A fitting recess 113 having a circular shape in sectional view, into which the rotation shaft 59 is fitted, is provided at the lower portion of the projecting portion 58. An inclined surface portion 114 that is inclined upward toward the rear is provided on the rear end side edge of the fitting recess 113.

  The rotation shaft 59 is fitted to the fitting recess 113 provided in the projecting portion 58 from the lower side and is integrally attached.

  FIG. 4 is a bottom view showing a suction port body of the electric vacuum cleaner according to the present invention.

  For ease of explanation, in the bottom view of the suction port body shown in FIG. 4, the direction will be explained by inverting the left and right in the basic posture shown in FIG. That is, the right direction in the bottom view of the suction port body shown in FIG. 4 is the left direction in the basic posture shown in FIG. 2, while the left direction in the bottom view of the suction port body shown in FIG. It is the right direction in the basic posture shown.

  As shown in FIG. 4, the lower case 13 of the case body 10 of the suction port 8 includes a lower case body 28 and a closing plate 29.

  A rotary cleaning body chamber 20 is formed in front of the lower case body 28.

  The rotary cleaning body 19 rotatably provided in the rotary cleaning body chamber 20 includes a substantially elongated columnar shaft body 67 as a shaft member, and a plurality of cleaning members spirally attached to the outer peripheral surface of the shaft body 67. For example, it has six cleaning parts 68.

  Both end portions of the shaft body 67 are pivotally supported by cylindrical bearings 55 provided on the side wall portion 32 forming the rotary cleaning body chamber 20.

  The bearing 55 is fitted to both end portions of the shaft body 67 and is rotatably supported by the side wall portion 32 forming the rotary cleaning body chamber 20. The bearing 55 is inserted into the case body 10, and the right bearing 55 is exposed to the outside when the closing plate 29 is removed.

  A front raised cloth 116 as a wiping member is provided on the left front end of the lower surface of the lower case 13 facing the surface F to be cleaned. A communication groove 117 that communicates between the rotary cleaning body chamber 20 and the left side of the case body 10 is provided along the width direction of the case body 10 behind the front raised cloth 116.

  A suction port 23 biased to the left side of the lower case main body 28 and a suction groove 73 as a horizontally long air passage communicated with the suction port 23 are formed in parallel behind the rotary cleaning body chamber 20. . The suction groove 73 forms the bottom surface of the drive chamber 25 and is provided in the vicinity of the closing plate 29. On the left side of the suction port 23 of the lower case main body 28, an intake groove 118 that is continuous with the left side portion of the case body 10 and the communication groove 117 is provided along the width direction. A suction portion 119 is configured by the suction port 23, the suction groove 73, and the intake groove 118.

  The total width dimension of the suction groove 73 and the suction port 23 is formed to be approximately equal to the axial dimension of the rotary cleaning body 19 or the width dimension of the rotary cleaning body chamber 20.

  A partition wall portion 74 that partitions the rotary cleaning body chamber 20 and the suction portion 119 is formed between the front end portion of the suction portion 119 and the rear end portion of the rotary cleaning body chamber 20. In the partition wall portion 74, a plurality of, for example, five communication passages 76 communicating with the lower end portions of the rotary cleaning body chamber 20 and the suction portion 119 are formed to be separated in the width direction of the case body 10. The communication passage 76 is formed in a horizontally long shape and is disposed between the rear portion of the rotary cleaning body chamber 20 and the front portions of the suction port 23 and the suction groove 73. Therefore, the partition wall portion 74 in which the communication passage 76 is formed is formed in a horizontally long convex rib shape. The partition wall portion 74 prevents a rug such as a carpet laid on the surface to be cleaned F such as a floor surface from sticking to the suction port 23, the suction groove 73, or the communication path 76.

  Behind the suction part 119 of the lower case main body 28, a raised cloth 77 wider than the suction port 23 and the suction groove 73 and the total width dimension is provided.

  A rear suction port 83 communicated with the suction side of the connecting pipe portion 11 is formed in the center region in the width direction of the case body 10 behind the raised cloth 77.

  The closing plate 29 is continuously formed in a longitudinal shape from the front end portion on the right side of the rotary cleaning body chamber 20 of the lower case main body 28 to the rear end portion. The closing plate 29 is detachably attached to the case body 10 by rotating the mounting member 121. Further, the closing plate 29 is attached below the side transmission chamber 27 and detachably accommodates the bearing 55 at the right end portion of the rotary cleaning body 19 with the upper case 14.

  A front raised cloth 122 is provided at the front end of the lower surface of the closing plate 29 facing the surface to be cleaned F, that is, the right front end of the lower case 13. Further, a communication groove 123 having a lower end opened continuously from the rotary cleaning body chamber 20 to the right side portion of the case body 10 is provided along the width direction of the case body 10 in front of the mounting member 121 that fixes the closing plate 29. Formed.

  The projecting portion 30 is provided so as to narrow toward the tip from the rear portion of the central region in the width direction of the lower case body 28, and both ends of the wheel 125 are pivotally supported at the tip portion of the projecting portion 30. A notch recess 126 is formed. On the front side of the notch recess 126 on the lower surface of the protruding portion 30, a rear raised cloth 85 is provided as a rear cleaning body that is continuous with both sides of the rear suction port 83. The rear suction port 83 is surrounded by a raised cloth 77 and a rear raised cloth 85.

  The bumper 128 is sandwiched between the lower case 13 and the upper case 14 and is continuously formed from the side of the front cover 16 to both sides of the case body 10. For example, a soft synthetic resin is used as a material. The suction port 8 is provided for buffering when it collides with a wall or the like.

  FIG. 5 is a longitudinal sectional view showing a moving state of the front cover provided on the suction port body of the electric vacuum cleaner according to the present invention.

  As shown in FIG. 5, the lower end portion of the front cover 16 projects forward from the front surface of the lower case 13 in a normal state. When the front side of the suction port 8 collides with an obstacle O as an abutted object such as a wall, the lower end portion of the front cover 16 rotates around a rotation shaft 59 that pivotally supports the front cover 16.

  In a state where the front cover body 57 of the front cover 16 is rotated rearward, the lower end portion of the front cover body 57 approaches the rotary cleaning body 19, and the rear surface of the front cover body 57 is the cleaning section 68 of the rotary cleaning body 19. It contacts the tip of the brush bristles 70.

  When the front cover 16 rotates rearward, the inclined surface portion 114 provided in the fitting recess 113 into which the rotation shaft 59 is fitted is slidably contacted with the front end portion of the extending portion 63 and is located above the rotary cleaning body chamber 20. Close the gap. The inclined surface portion 114 regulates the rear rotation angle of the front cover 16 by contacting the front surface of the extension portion 63 in a state where the front cover 16 is rotated to the maximum at the rear. The inclination angle of the inclined surface portion 114 is appropriately set according to the rotation amount of the front cover 16.

  Next, the suction port body 8 of the vacuum cleaner 1 according to this embodiment and the cleaning operation of the vacuum cleaner 1 will be described.

  First, the user of the cleaner body 2 connects the flexible hose body 3 to the connection port 2 a of the cleaner body 2, connects the extension pipe 7 to the flexible hose body 3, and sucks the suction pipe into the extension pipe 7. Connect the body 8.

  Next, a power cord (not shown) is pulled out from the cleaner body 2 and connected to an outlet (not shown) for supplying commercial power.

  Next, the gripping unit 5 is gripped and the setting button 6 is operated. Then, the electric blower 9 is driven in a predetermined operation mode according to the operation mode set by the setting button 6.

  Next, the operator grips the grip portion 5 and causes the suction port body 8 to travel back and forth on the surface to be cleaned F such as a floor surface to suck in dust on the surface to be cleaned F.

  At this time, when the lower surface of the suction port body 8 comes into contact with the surface to be cleaned F such as the floor surface, the raised cloth 77 and the rear raised cloth 85 provided on the lower surface of the suction port body 8 become the cleaned surface F. The vicinity of the rear suction port 83 is closed by close contact. Then, air is sucked from the suction port 23 formed on the lower surface of the suction port body 8 and the suction port 39 formed on the upper surface of the suction port body 8.

  The suction negative pressure acting on the suction port 23 includes a communication groove 117 and an intake groove 118 formed on the lower right surface of the suction port body 8, a communication groove 123 formed on the lower left surface of the suction port body 8, and the suction port 23. The air containing the dust is sucked into the cleaner body 2 from the communication groove 117, the suction groove 118, the communication groove 123, and the suction groove 73 through the suction port 23.

  On the other hand, the air sucked from the intake port 39 flows into the introduction air passage 44 through the intake chamber 40, and the air speed is increased by the introduction air passage 44, which is reduced in diameter. The air turbine 24a is rotated by hitting the turbine blade 101 of 24a.

  The rotation of the air turbine 24a is transmitted to the drive pulley 51 of the transmission unit 24b via a belt 53 wound around a rotation shaft 49 provided in the air turbine 24a. The rotational movement of the drive pulley 51 is transmitted to the transmission pulley 52 after the rotation direction is changed by the transmission body 50. The rotational movement of the transmission pulley 52 is transmitted to the rotary cleaning body 19 via the transmission belt 54, and the rotary cleaning body 19 rotates in a predetermined direction.

  When the rotary cleaning body 19 rotates, the tip of the brush bristles 70 of the rotary cleaning body 19 comes into contact with the surface to be cleaned F such as the floor surface, and the dust on the surface to be cleaned F is scraped up.

  Dust scraped up by the rotation of the rotary cleaning body 19 is sucked together with air into the suction groove 73 and the suction port 23 through a communication path 76 formed at the rear of the rotary cleaning body chamber 20 that houses the rotary cleaning body 19. .

  FIGS. 6A1 to 6D2 are views for explaining the reciprocating motion of the raised cloth of the suction port body of the electric vacuum cleaner according to the present invention.

  6 (A1), (B1), (C1) and (D1) are partial plan sectional views of the suction port body, and FIG. 6 (A2), (B2), (C2) and (D2). FIG. 3 is a partial cross-sectional view of a suction port body.

  As shown in FIG. 6, the rotation of the air turbine 24a causes the crank pin 108 formed by projecting to the lower end of the rotation shaft 49 of the air turbine 24a to be the central axis of the rotation shaft 49 (one-point difference gland C in the figure). Make a circular motion around The circular motion of the crankpin 108 is caused by the suction of the slide base 79 through a hole having a substantially rectangular shape in a plan view formed on a yoke portion 80 provided so as to protrude from the slide base 79 provided with the raised cloth 77. A horizontal reciprocation is made in the width direction of the body 8 (solid arrow W in the figure). The raised cloth 77 provided on the slide base 79 is horizontally reciprocated in the width direction of the suction port body 8.

  Here, as shown in the order of FIG. 6 (A1) and (A2), (B1) and (B2), (C1) and (C2), (D1) and (D2), around the central axis of the rotating shaft 49 Attention is paid to the crank pin 108 that makes a circular motion every 90 degrees of rotation angle of the rotation shaft 49.

  Specifically, as shown in FIGS. 6A1 and 6A2, the crank pin 108 is displaced from the central axis of the rotation shaft 49 to one side in the front-rear direction of the suction port body 8, and the hole portion of the yoke portion 80 is formed. When placed on one short side, the slide base 79 provided with the raised cloth 77 is arranged at a neutral position in the lower case 13.

  When the rotating shaft 49 rotates 90 degrees clockwise from here, as shown in FIGS. 6 (B1) and (B2), the crank pin 108 is deviated from the central axis of the rotating shaft 49 to one side in the width direction of the suction port 8. And disposed at the approximate center of one long side of the hole of the yoke portion 80. Accordingly, the yoke portion 80 is displaced to one side in the width direction of the suction port body 8, that is, the raised cloth 77 is displaced to one side in the width direction of the lower case 13 together with the slide base portion 79 provided with the yoke portion 80.

  Next, when the rotating shaft 49 rotates 90 degrees clockwise, as shown in FIGS. 6 (C1) and (C2), the crank pin 108 is deviated from the central axis of the rotating shaft 49 to the other in the front-rear direction of the suction port 8. And disposed on the other short side of the hole of the yoke portion 80. Accordingly, the yoke portion 80 is displaced to the other side in the width direction of the suction port body 8, that is, the raised cloth 77 is again arranged at the neutral position of the lower case 13 together with the slide base portion 79 provided with the yoke portion 80.

  When the rotating shaft 49 further rotates 90 degrees clockwise, as shown in FIGS. 6D1 and 6D2, the crank pin 108 is displaced from the central axis of the rotating shaft 49 to the other in the width direction of the suction port 8. And arranged at the approximate center of the other long side of the hole of the yoke portion 80. Accordingly, the yoke portion 80 is displaced to the other side in the width direction of the suction port body 8, that is, the raised cloth 77 is displaced to the other side in the width direction of the lower case 13 together with the slide base 79 provided with the yoke portion 80.

  Thus, the circular movement of the crankpin 108 causes the raised cloth 77 to horizontally reciprocate in the width direction of the suction port 8 via the slide base 79 provided with the yoke portion 80. In addition, even if the rotating shaft 49 rotates counterclockwise, the raised cloth 77 can be horizontally reciprocated in the width direction of the suction port body 8 in the same manner.

  When the raised cloth 77 reciprocates horizontally, the tip of the raised cloth 77 enters the groove extending in the direction intersecting the front-rear direction of the suction port body 8, and the dust in the groove is scraped up.

  The dust in the groove portion where the raised cloth 77 is scraped up by the horizontal reciprocating motion is sucked into the suction groove 73 and the suction port 23 together with air.

  When the front side of the suction port body 8 is pressed against an obstacle O such as a wall, the lower end side of the front cover 16 rotates backward about the rotation shaft 59. Then, the brush bristles 70 of the rotary cleaning body 19 approach the obstacle O and the surface to be cleaned F such as the floor surface, and the front surface of the front cover 16 is substantially flush with the front surfaces of the lower case 13 and the upper case 14. It becomes. The front end of the front cover 16 is brought into contact with the tip of the brush bristles 70 of the rotary cleaning body 19 and becomes a load of the rotational force of the rotary cleaning body 19.

  At this time, the upper side and the lower side of the front cover 16 from the contact position with the obstacle O are partitioned substantially airtightly, and the obstacle O and the rotary cleaning body chamber 20 form a substantially closed space. As a result, the amount of air sucked in from the front side of the case body 10 is reduced, and the amount of air sucked in the inlet 23 is reduced, so that the amount of air sucked in the air inlet 39 is relatively increased. When the amount of air sucked into the air inlet 39 increases, the rotational force of the air turbine 24a, that is, the rotational force of the rotary cleaning body 19 increases, and the dust on the obstacle O is scraped up.

  The inclined surface portion 114 of the front cover 16 is in sliding contact with the front end portion of the extending portion 63 of the lower case 13 and always closes the gap on the upper side of the rotary cleaning body chamber 20.

  When the front side of the suction port body 8 is separated from the obstacle O, the lower end side of the front cover 16 is moved forward about the rotation shaft 59 by the urging force of the torsion spring provided on the rotation shaft 59 that pivotally supports the front cover 16. Rotate to return.

  The rear end portion of the projecting portion 58 of the front cover 16 is fitted into the notch fitting recess 112 of the extending portion 63 of the lower case 13, and the front lower end portion of the upper case 14 is in contact with the front cover 16. The gap between the upper case 14 and the front cover 16 is closed.

  Next, when the suction port body 8 is lifted from the surface to be cleaned F, which is the floor surface, the raised cloth 77 and the rear raised cloth 85 provided on the lower surface of the suction port body 8 are separated from the cleaned surface F and the rear portion. The periphery of the suction port 83 is opened. When the rear suction port 83 is opened, air is sucked from both the suction port 23 and the rear suction port 83, and the amount of suction air from the suction port 39 is relatively reduced. When the intake air volume of the air at the intake port 39 decreases, the rotation of the air turbine 24a stops. That is, the rotational movement of the rotary cleaning body 19 and the horizontal reciprocation of the raised cloth 77 are stopped.

  The dust sucked together with the air from the suction port body 8 sequentially passes through the extension pipe 7 and the flexible hose body 3, and then is guided to the connection port 2 a of the cleaner body 2, so that the inside of the cleaner body 2 Is collected in a dust collection pack housed in

  The air in which the dust is collected is sucked into the electric blower 9 to become exhaust air, and is exhausted to the outside from the exhaust port of the cleaner body 2.

  In the suction port body 8 according to the present embodiment, the rotational force of the suction chamber 22 that guides the air containing dust sucked into the suction port 23 to the connection pipe portion 11 and the rotational force of the air turbine 24a of the drive portion 24 is a rotary cleaning body. The drive chamber 25 in which the transmission portion 24 b that transmits to 19 is accommodated is arranged in parallel behind the rotational cleaning body chamber 20 in which the rotational cleaning body 19 is accommodated. A suction groove 73 that is communicated with the suction port 23 and is open at the bottom is formed at the bottom of the bottom surface of the drive chamber 25.

  Moreover, in the suction inlet 8 which concerns on this embodiment, the suction groove 118 which connects the left side bottom part of the suction inlet 8 and the inlet 23 is formed, and the left bottom of the suction inlet 8 and the rotary cleaning body chamber 20 are made into. A communication groove 117 for communication is formed, and a communication groove 123 for communication between the right bottom of the suction port body 8 and the rotary cleaning body chamber 20 is formed. The intake groove 118 and the communication groove 123 are formed to open downward from the suction port body 8.

  Further, in the suction port body 8 according to the present embodiment, the rear side of the suction port 23 and the suction groove 73 is wider than the total width dimension, and can be horizontally reciprocated in the width direction of the suction port body 8. A blanket 77 is provided.

  According to the suction port body 8 according to the present embodiment, for example, in the cleaning surface F having a groove such as a floor surface configured by combining a plurality of plate materials such as flooring, the suction port body 8 is in a direction along the groove. When moved and the brush bristles 70 of the rotary cleaning body 19 scratch the surface F to be cleaned, the dust caught in the grooves can be easily removed. Further, when the suction port body 8 is moved in the direction intersecting with the groove and the brush bristles scratch the surface F to be cleaned, the suction port body 8 is separated from the brush bristles 70 in contact with the surface F to be cleaned. The raised cloth 77 capable of horizontal reciprocation in the width direction can penetrate into the depth of the groove and scrape out the dust caught in the groove. That is, in the suction port body 8 of the vacuum cleaner 1 of the present embodiment, when the suction port body 8 is moved in a direction intersecting with the groove formed in the surface to be cleaned F, the horizontal reciprocation in the width direction of the suction port body 8 is performed. The brushed cloth 77 capable of movement can be cleaned by scraping the dust caught in the groove.

  Further, by providing a rear suction port 83 on the lower surface of the case body 10 that is closed when the suction port body 8 is grounded to the surface to be cleaned F and opened when the suction port body 8 is separated from the surface to be cleaned F, When the suction port body 8 is grounded to the surface F to be cleaned, air is sucked only from the suction port 23 below the case body 10, so that the amount of intake air from the suction port 39 increases relatively, and the air turbine Rotate 24a securely. Therefore, the rotational movement of the rotary cleaning body 19 driven by the air turbine 24a and the horizontal reciprocating movement of the raised cloth 77 can be maintained. Further, when the suction port body 8 is separated from the surface to be cleaned F, air is sucked from the suction port 23 and the rear suction port 83 on the lower side of the case body 10, so that the intake air volume from the suction port 39 is relatively The rotation of the air turbine 24a is surely stopped and the rotational movement of the rotary cleaning body 19 and the horizontal reciprocation of the raised cloth 77 can be reliably prevented.

  That is, according to the suction port body 8 and the vacuum cleaner 1 according to the present embodiment, when there is a groove in the direction intersecting the traveling direction of the suction port body 8, dust caught in the groove is easily scraped out. It can be cleaned.

  The vacuum cleaner 1 is not limited to the canister type vacuum cleaner 1, and may be an upright type or a handy type vacuum cleaner in which the suction port 8 is directly formed on the lower surface of the vacuum cleaner body 2. Even if it exists, it can be used correspondingly.

The figure which showed the external appearance of the vacuum cleaner which concerns on this invention. The top view which notched and showed some suction inlet bodies of the vacuum cleaner which concerns on this invention. The longitudinal cross-sectional view which showed the suction inlet of the vacuum cleaner which concerns on this invention. The bottom view which showed the suction inlet of the vacuum cleaner which concerns on this invention. The longitudinal cross-sectional view which showed the movement state of the front side cover provided in the suction inlet of the vacuum cleaner which concerns on this invention. It is a figure explaining the reciprocating motion of the raising cloth of the suction inlet of the vacuum cleaner which concerns on this invention, (A1), (B1), (C1) and (D1) are the partial plane sectional views of a suction inlet. , (A2), (B2), (C2) and (D2) are partial cross-sectional views of the suction port body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 2a Connection port 3 Flexible hose body 4 Hand operation part 5 Holding part 6 Setting button 7 Extension pipe 8 Suction port body 9 Electric blower 10 Case body 11 Connection pipe part 13 Lower case 14 Upper case 15 Middle case 16 Front cover 19 Rotating cleaning body 20 Rotating cleaning body chamber 22 Suction chamber 23 Suction port 24 Drive section 24a Air turbine 24b Transmission section 25 Drive chamber 26 Transmission chamber 27 Side transmission chamber 28 Lower case body 29 Closure plate 30 Projection Portion 31 front wall portion 32 side wall portion 33 opening portion 34 rear partition wall portion 38 fitting groove 39 intake port 40 intake chamber 41 intake chamber wall portion 42 turbine chamber 43 turbine chamber wall portion 44 introduction air passage 45 wall main body portion 48 turbine main body 49 Rotating shaft 50 Transmission portion main body 51 Drive pulley 52 Transmission pulley 53 Belt 54 Transmission belt 55 Bearing 57 Front cover main body 58 Projecting portion 59 Rotating shaft 63 Protruding portion 65 Mounting groove portion 67 Shaft body 68 Cleaning portion 69 Mounted portion 70 Brush bristle 73 Suction groove 74 Partition wall portion 76 Communication path 77 Brushed cloth 78 Linear motion bearing groove 79 Slide base portion 80 York portion 83 Rear suction port 84 Closure wall 85 Rear raised cloth 87 Rib 90 Shaft support portion 92 Air passage partition portion 93 Communication hole 95 Middle case rib 96 Lower case rib 100 Top plate 101 Turbine blade 102 Ring 103 Ring 104 Step portion 105 Step portion 108 Crank pin 110 Recess 111 Cover rib 112 Notch fitting recess 113 fitting recessed part 114 inclined surface part 116 front raised cloth 117 communicating groove 118 suction groove 119 suction part 121 mounting member 122 front raised cloth 123 communicating groove 125 wheel 126 notch recessed part 128 bumper

Claims (3)

An electric blower that generates suction negative pressure;
A suction port for sucking air by the action of the suction negative pressure facing the surface to be cleaned;
An air intake port that draws air by the action of the negative suction pressure away from the surface to be cleaned than the intake port;
A drive unit having an air turbine rotated by air sucked from the air inlet;
A rotary cleaning body driven by the drive unit;
A reciprocating cleaning body that is opposed to the surface to be cleaned and is provided so as to be capable of horizontal reciprocation in a direction substantially parallel to the rotation axis of the rotary cleaning body ;
A rotating shaft that is integral with the air turbine;
A crank pin that protrudes from an end of the rotating shaft and rotates around the rotation center line of the rotating shaft when the rotating shaft rotates;
A vacuum cleaner suction , comprising: a yoke portion provided on the reciprocating cleaning body, wherein the crankpin is inserted to convert a circular motion of the crankpin into a horizontal reciprocating motion of the reciprocating cleaning body. Mouth body. The air turbine is flat and has a circular shape in plan view, and is disposed at a substantially center in the width direction of the suction port body,
The rotating shaft extends downward from the air turbine;
The suction port body of the vacuum cleaner according to claim 1, wherein the reciprocating cleaning body is disposed below the rotating shaft. And the vacuum cleaner body that houses the electric blower,
A vacuum cleaner comprising: a suction port body of the vacuum cleaner according to claim 1 or 2 connected to and connected to a suction side of the electric blower.

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