JP2020014587A - Vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner capable of facilitating sweeping cleaning in especially, a lateral direction and improving dust suction efficiency.SOLUTION: A rotary brush storage chamber 2 comprises a first rotary brush 21 and a second rotary brush 22 arranged in parallel. The first rotary brush 21 comprises a first rotor 211 and a Z-shaped winding cleaning piece 212 formed of an aggregate being formed of a plurality of bristles arranged in a Z-winding spiral state in a longer direction of the first rotor 211. The second rotary brush 22 comprises a second rotor 221 and a S-shaped winding cleaning piece 222 formed of an aggregate being formed of a plurality of bristles arranged in a S-winding spiral state in a longer direction of the second rotor 221. A suction hole 2a to a suction channel is arranged on a rear side of the rotary brush storage chamber 2 between the first rotary brush 21 and the second rotary brush 22. The brush drive motor rotates the first rotary brush 21 in a left side and rotates the second rotary brush 22 in a right side, in view from a top part of the rotary brush storage chamber 2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vacuum cleaner, and more particularly, to an improvement of a rotating brush thereof.

  In a conventional vacuum cleaner, a single rotating brush is provided in a rotating brush storage chamber having a cleaner suction port serving as a cleaning surface and a suction port communicating with a suction flow path on the opposite side of the center of the cleaner suction port. . That is, the suction port is located at the center of the rotating brush storage chamber. The rotating brush has a rotating body and a cleaning piece spirally disposed on the rotating body (see Patent Document 1).

JP-A-2003-52587

  However, in the above-described conventional vacuum cleaner, the sweep resistance against the cleaning surface in the longitudinal direction (for example, the left-right direction) of the rotating brush is large, and the rotating brush is also moved in the short direction (for example, the front-back direction) of the rotating brush. Depending on the rotation direction and the arrangement of the cleaning pieces, for example, the sweep resistance against the cleaning surface in the rear direction was large. Therefore, there is a problem that sweep cleaning is not easy because the sweep resistance increases depending on the traveling direction.

  There is also a problem that it is desired to improve dust suction efficiency.

  In order to solve the above-mentioned problem, a vacuum cleaner according to the present invention has a vacuum cleaner suction port and a suction port communicating with a suction channel, and a first rotating brush and a second rotating brush arranged in parallel. A rotating brush accommodating chamber for accommodating a brush, and a brush driving motor for driving a first rotating brush and a second rotating brush, wherein the first rotating brush and the second rotating brush are the cleaner The first rotating brush is rotationally driven so as to rotate inward each other when viewed from the intake port side, and the first rotating brush is disposed in a Z-winding spiral shape in the longitudinal direction of the first rotating body and the first rotating body. A second rotating brush having a Z-winding cleaning piece made of an aggregate of a plurality of bristles, and a second rotating brush and a plurality of S-winding spirals arranged in the longitudinal direction of the second rotating body; A rotating brush storage chamber having an S-winding cleaning piece composed of a set of hairs, viewed from the vacuum cleaner inlet side When the front side is up and the rear side of the rotating brush storage chamber is down, the first rotating brush is disposed on the left side of the second rotating brush, and the suction port is provided with the first rotating brush, the second rotating brush, Between the rotating brush housings.

  According to the present invention, the sweep resistance of the first rotating brush and the second rotating brush with respect to the cleaning surface in the longitudinal direction (for example, the longitudinal direction) is small because the major axis direction of the two rotating brushes is the longitudinal direction of the sweep. Become. In addition, the sweep resistance of the first rotating brush and the second rotating brush with respect to the cleaning surface in the short direction (for example, the left and right direction) is small because the two rotating brushes are configured to rotate in opposite directions. Become. Therefore, the sweep resistance decreases in the front, rear, left and right directions, and as a result, sweep cleaning becomes easy. In addition, the winding direction of the cleaning piece and the rotation direction of the rotating body are specified, and the suction port is provided at the rear side of the rotating brush storage chamber, so that the suction port is located at the end of the dust feeding direction by the cleaning piece. Therefore, most of the dust is directed to the suction port, and the dust suction efficiency can be significantly improved.

BRIEF DESCRIPTION OF THE DRAWINGS The embodiment of the vacuum cleaner which concerns on this invention is shown, (A) is a lower surface side perspective view, (B) is a longitudinal cross-sectional view. The enlarged bottom view of a rotating brush accommodation room is shown, (A) is the figure seen from the front of the vacuum cleaner suction port (cleaning surface) a little above, and (B) is the upper right of the front of the vacuum cleaner suction port (cleaning surface). FIG. FIG. 4 is a perspective view showing a first rotating brush, a second rotating brush, and a brush driving motor. 3A is a partially enlarged perspective view of FIG. 3, wherein FIG. 3A is a perspective view as viewed from an arrow A in FIG. 3 and FIG. 3B is a perspective view as viewed from an arrow B in FIG. FIG. 4 is a diagram for explaining operations of a first rotating brush and a second rotating brush.

  1A and 1B show an embodiment of a vacuum cleaner according to the present invention, wherein FIG. 1A is a bottom perspective view, and FIG. 1B is a longitudinal sectional view of FIG.

  In FIG. 1, a housing constituted by a front panel 1a and a back panel 1b is provided with a cleaner inlet 1c and a cleaner outlet 1d.

  Between the cleaner inlet 1c and the cleaner outlet 1d provided in the housings (1a, 1b), a rotating brush housing chamber 2, a brush driving motor 3 provided outside the rotating brush housing chamber 2, A suction flow path 4 communicating with the rear side of the brush housing chamber 2, a dust box unit 5 communicating with the suction flow path 4, a blower fan 6 adjacent to the dust box unit 5, and a fan drive motor 7 for driving the blower fan 6 are provided. Is provided. The opening provided in the rotating brush storage chamber 2 constitutes the cleaner suction port 1c and also constitutes a cleaning surface for cleaning.

  The longitudinal direction of the whole vacuum cleaner is along the longitudinal direction of the rotating brush, and the rear part from the longitudinal center part constitutes a grip part (grip part).

  Further, a headlight 8 for illuminating the cleaning surface area is provided at the tip of the front panel 1a. On the other hand, a power cord connector 9 and a power switch 10 of a power cord (not shown) connected to the cigarette lighter are provided at the rear end of the back panel 1b.

  The rotating brush storage chamber 2 and the brush drive motor 3 will be described later.

  The dust box unit 5 is fixed to one of the left and right sides of the dust box intake port 5a so as to close the dust box intake port 5a of the dust box 5c having the dust box intake port 5a near the bottom and the dust box exhaust port 5b on the opposite side. A check valve packing 5d, a cylindrical dust filter 5e provided in the dust box exhaust port 5b, and a filter gasket 5f for fixing the dust filter 5e to the dust box 5c. The dust box intake port 5 a communicates with the suction channel 4 that communicates with the rotating brush storage chamber 2. The dust box unit 1 is stored in a housing constituted by a front panel 1a and a back panel 1b, and can be removed from the housing (1a, 1b) by pressing a knob 5g. That is, the dust box unit 5 is detachable from the housing (1a, 1b).

  FIG. 2 is a drawing for explaining the inside of the rotating brush storage chamber. For convenience of explanation, the shape and the like are different from those of the embodiment shown in FIG. 1, but the basic configuration is common. (A) is a diagram viewed from slightly above the front of the cleaner inlet (cleaning surface), and (B) is a diagram viewed from the upper right of the front of the cleaner inlet (cleaning surface). In FIG. 2, the upper side is the front side of the cleaner, while the lower side is the rear side of the cleaner, and the suction port 2a for the suction flow path 4 is provided on the lower side.

  As shown in FIG. 2, a first rotating brush 21 and a second rotating brush 22 are arranged in parallel in the rotating brush storage chamber 2. That is, when projected to the cleaner inlet 1c side, the main body of the vacuum cleaner has a grip portion having a long axis parallel to the long axis direction of the first rotating brush 21 and the second rotating brush 22.

  The first rotating brush 21 is an aggregate Z composed of a first rotating body 211 and a plurality of nylon (registered trademark) bristles arranged in a Z-winding spiral shape in the longitudinal direction of the first rotating body 211. And a cleaning roll 212. The “Z-winding” refers to a connection between the upper right and the lower left of the cleaning piece 212 seen in the foreground in FIG. On the other hand, the second rotating brush 22 is an aggregate composed of a second rotating body 221 and a plurality of nylon (registered trademark) bristles arranged in an S-wound spiral shape in the length direction of the second rotating body 221. S-shaped cleaning piece 222. The “S-winding” refers to a connection between the upper left and lower right sides of the cleaning piece 222 seen in the foreground in FIG. The suction port 2a to the suction flow path 4 is arranged on the rear side of the rotary brush housing chamber 2 between the first rotary brush 21 and the second rotary brush 22. The first rotating brush 21 and the second rotating brush 22 are driven to rotate inward each other.

  In the case where the first rotating brush 21 in which the cleaning piece 212 is arranged in a spiral spiral shape is viewed as the left, and the second rotating brush 22 in which the cleaning piece 222 is spirally arranged spirally is viewed as the right, a suction port is provided. 2a is designed to be located at the lower end between the rotating brushes 21,22.

  The length of the rotating brushes 21 and 22 in FIG. 2 is, for example, 55 mm, and the gap distance between the rotating brushes 21 and 22 is, for example, 1 mm that does not make contact. Further, in the cleaning pieces 212 and 222 of the rotating brushes 21 and 22, the pitch is, for example, 10 mm at equal intervals, the pitch number is 5 or more, and the inclination of the cleaning pieces 212 and 222 with respect to the axis of the rotating bodies 211 and 221 is 30 to 50 °, for example, 40 °. Furthermore, the length of the bristles of the cleaning pieces 212 and 222 is, for example, 8 mm. The rotating brushes 21 and 22 are configured, for example, by winding a tape-shaped cloth attached so that two rows of cleaning pieces stand in a base cloth shape around the outer periphery of a shaft.

  FIG. 3 is a perspective view showing the first rotary brush 21, the second rotary brush 22, and the brush drive motor 3 of FIG. 1, and FIG. 4 is a partially enlarged perspective view of FIG. FIG. 4B is a perspective view as viewed in the direction of the arrow A, and FIG.

  The arrangement of the brushes as viewed from the cleaning surface will be described below with the first rotating brush 21 on the left and the second rotating brush 22 on the right.

  3 and 4, a left gear 31 (shown only in FIG. 4A), a left pulley 31a connected to the left gear 31, and a right pulley 32a connected to the right gear 32 and the right gear 32 are provided. The left gear 31 and the right gear 32 mesh with each other in pairs, and rotate in opposite directions. In this case, the right gear 32 is fixed to the output shaft of the brush drive motor 3. On the other hand, a left pulley 21a and a right pulley 22a are fixed to the first rotating brush 21 and the second rotating brush 22, respectively. Further, by suspending the left belt 33 between the left pulley 31a and the left pulley 21a, the left rotation of the left pulley 31a is transmitted to the left pulley 21a, and the right belt 34 is suspended between the right pulley 32a and the right pulley 22a. Thus, the right rotation of the right pulley 32a is transmitted to the right pulley 22a. As a result, the brush drive motor 3 rotates the first rotating brush 21 counterclockwise as viewed from the left side of FIG. 3 (as viewed from the side where the gear of the rotating brush is not attached) as shown by an arrow L in FIG. At the same time as rotating in the counterclockwise direction, the second rotating brush 22 can be rotated clockwise (clockwise) as viewed from the left side in FIG. 3 as shown by the arrow R in FIG.

  3 and 4, the left belt 33 is hung between the left pulleys 31a and 21a, and the right belt 34 is hung between the right pulleys 32a and 22a, assuming that the output shaft of the brush drive motor 3 is clockwise. However, if the output shaft of the brush drive motor 3 is counterclockwise, the left belt 33 is hung between the pulleys 32a and 21a, and the right belt 34 is hung between the pulleys 31a and 22a.

  FIG. 5 is a view for explaining the operation of the first rotating brush 21 and the second rotating brush 22 of the rotating brush storage chamber 2 of FIG.

  As shown in FIG. 5, the first rotating brush 21 provided with the Z-winding cleaning piece 212 rotates counterclockwise (L) when viewed from the tip side (the side opposite to the suction port 2a), so that the cleaning surface has: Dust that has come into contact with the cleaning piece 212 is swept to the suction port 2a side. In other words, the dust that has come into contact with the cleaning piece 212 is moved to the suction port 2a side by the cleaning piece 212 on the suction port 2a side being sequentially exposed to the cleaning surface as the first rotating brush 21 rotates in the L direction. Swept away. Further, in FIG. 5, a state in which one continuous cleaning piece 212 is exposed on the cleaning surface with the rotation is indicated by an arrow X1.

  Further, the second rotating brush 22 provided with the S-winding cleaning piece 222 rotates clockwise (R) when viewed from the front end side (the side opposite to the suction port 2a), so that the cleaning brush 222 comes into contact with the cleaning piece 222 on the cleaning surface. The dust is swept to the suction port 2a side. In other words, the dust that has come into contact with the cleaning piece 222 is moved toward the suction port 2a by the cleaning piece 222 on the suction port 2a side being sequentially exposed to the cleaning surface as the second rotating brush 22 rotates in the R direction. Swept away. In FIG. 5, the state where one continuous cleaning piece 222 is exposed on the cleaning surface with the rotation is indicated by an arrow X2.

  The suction port 2a is located at the end side of the first rotating brush 21 and the second rotating brush 22 and moves toward the suction port 2a without obstructing the feeding of the dust by the cleaning pieces 212 and 222. The sent dust can be efficiently sucked. In particular, since the suction port 2a does not hinder the dust feeding function of the cleaning pieces as compared with the suction port 2a provided at the mid-position between the first rotating brush 21 and the second rotating brush 22, High suction efficiency.

  Further, as shown in FIG. 5, when the first rotating brush 21 rotates counterclockwise (L) and the second rotating brush 22 rotates clockwise (R), dust from the cleaning surface on the left side is rotated by the first rotating brush. Due to the inner rotation of the Z-winding cleaning piece 212 of the brush 21, the brush 21 is also swept out to a suction flow path located between the first rotating brush 21 and the second rotating brush 22. Further, dust from the cleaning surface on the right side flows into the suction flow path located between the first rotating brush 21 and the second rotating brush 22 due to the inner rotation of the S winding cleaning piece 222 of the second rotating brush 22. Is also swept away. Then, the dust swept and collected in the suction flow path between the rotating brushes by each rotating brush goes to the suction port 2a as indicated by an arrow Y. Therefore, most of the dust from the cleaning surface is efficiently sucked into the suction port 2a.

  The sweep resistance of the first rotating brush 21 and the second rotating brush 22 with respect to the cleaning surface in the longitudinal direction (for example, the longitudinal direction) is such that the major axis direction of the two rotating brushes 21 and 22 is the longitudinal direction of the sweeping. The influence of the rotation of 21 and 22 is small. Further, the sweep resistance of the first rotating brush and the second rotating brush with respect to the cleaning surface in the short direction (for example, the left-right direction) is such that the two rotating brushes rotate in directions opposite to each other. Are equal and smaller in the left-right direction than when they rotate in the same direction. Therefore, the sweep resistance decreases in the front, rear, left and right directions, and as a result, sweep cleaning becomes easy.

  It should be noted that the present invention can be applied to any change within the obvious scope of the above-described embodiment. For example, in this embodiment, a part of the main body of the vacuum cleaner constitutes a grip portion, but a configuration in which a grip portion is separately provided may be adopted. Even in such a case, it is preferable to provide a grip portion extending parallel to the long axis of the rotating brush.

  INDUSTRIAL APPLICABILITY The present invention can be used as a vacuum cleaner, and in particular, can be used as a small vacuum cleaner for a handy cleaner and a car cleaner. In particular, the size of the car cleaner can be reduced by using the battery of the automobile via, for example, a cigarette lighter without incorporating a battery.

1a: Front panel 1b: Back panel 1c: Vacuum cleaner inlet 1d: Vacuum cleaner outlet 2: Rotary brush storage chamber 2a: Suction port 21: First rotary brush 211: First rotary body 212: Z-winding cleaning piece 22: Second rotating brush 221: Second rotating body 222: S-winding cleaning piece 3: Brush driving motor 4: Suction flow path 5: Dust box unit 5a: Dust box intake port 5b: Dust box exhaust port 5c: Dust box 5d: Reverse Stop valve packing 5e: Dust collection filter 5f: Filter gasket 5g: Knob 6: Blower fan 7: Fan drive motor 8: Headlight 9: Power switch 10: Power cord connector

Claims (4)

A rotary brush storage chamber having a suction port communicating with the vacuum cleaner suction port and the suction flow path, and storing the first rotary brush and the second rotary brush arranged in parallel;
A brush drive motor for driving the first rotating brush and the second rotating brush,
The first rotating brush and the second rotating brush are rotationally driven to rotate inward each other when viewed from the cleaner inlet side,
The first rotating brush includes a first rotating body and a Z-winding cleaning piece including an aggregate of a plurality of hairs arranged in a Z-winding spiral shape in a length direction of the first rotating body,
The second rotating brush has a second rotating body and an S-winding cleaning piece including an aggregate of a plurality of hairs arranged in an S-winding spiral shape in the length direction of the second rotating body,
When the front side of the rotating brush storage chamber is viewed upward and the rear side of the rotating brush storage chamber is viewed downward as viewed from the cleaner inlet, the first rotating brush is disposed on the left side of the second rotating brush. The vacuum cleaner is further arranged such that the suction port is disposed below the rotating brush storage chamber between the first rotating brush and the second rotating brush. further,
A first gear and a first pulley provided on an output shaft of the brush drive motor;
A second gear and a second pulley for pairing with the first gear and rotating in a direction opposite to the rotation of the first gear;
A third pulley provided on the first rotating brush and connected to one of the first and second pulleys by a first belt;
The vacuum cleaner according to claim 1, further comprising: a fourth pulley provided on the second rotating brush and connected to the other of the first and second pulleys by a second belt.   3. The vacuum cleaner according to claim 1, wherein the brush drive motor is provided outside the rotary brush storage chamber on a side opposite to the vacuum cleaner intake port. 4. further,
4. The grip according to claim 1, further comprising a grip having a major axis parallel to a major axis direction of the first rotating brush and the second rotating brush when projected onto the vacuum cleaner inlet. 5. Vacuum cleaner.

Images