JPH09192058A - Suction port body for electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port body of an electric vacuum cleaner which achieves improvement in miniaturization and safety. SOLUTION: There are arranged a suction port body 1 connected to the body of an electric vacuum cleaner, a suction inflow path 25 to guide a suction current 3a from a suction port 2 opened in the bottom surface of the suction port body 1 to the body of the electric vacuum cleaner and a mobile brush 5 which is arranged in the course of a suction inflow path 2 to be driven by a motor 4. The mobile brush 5 is reciprocally oscillated about a support shaft 8 in the longitudinal direction crossing the direction of the suction current 3a. As compared with a rotation space required for the conventional rotary brush, this can reduce the oscillation space of the mobile brush 5 thereby miniaturizing the suction port body 1 accordingly. Safe use is possible without hazard of dragging in a finger or the like as occurring in the rotary brush.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a suction port body of an electric vacuum cleaner.

[0002]

2. Description of the Related Art As a suction port of an electric vacuum cleaner, for example,
As shown in FIGS. 11 and 12, inside the suction port body 33 formed by abutting the upper and lower cases 31 and 32, a suction airflow from a suction port 34 opened on the bottom surface of the suction port body 33 is cleaned by a cleaner (not shown). Suction inflow passage 3 guided to the pipe through the connecting pipe 35
6, a motor 37, and a rotary brush 40 which is arranged on the way of the suction inflow passage 36 and is driven to rotate around a support shaft 39 by the motor 37 via a belt 38 (for example, an actual one. Japanese Patent Publication No. 3-41634).

[0003]

However, in the above-mentioned suction port body, since the rotary brush 40 rotates around the support shaft 39, a space larger than the radius of the rotary brush 40 is provided inside the suction port body 33 along the entire circumference thereof. Is required over a long period of time, the suction port body tends to be large, and the rotating brush 40
There was a risk that your fingers could get caught in your hands. Furthermore, a range where the brush bristles of the rotating brush 40 cannot reach occurs,
There is also a problem that the efficiency of picking up dust in this range is poor.

An object of the present invention is to solve the above problems, and it is an object of the present invention to provide a suction port body of an electric vacuum cleaner which can be downsized and improved in safety. Another object of the present invention is to provide a suction port body of an electric vacuum cleaner capable of improving the efficiency of scraping dust.

[0005]

According to a first aspect of the present invention, the suction port main body connected to the cleaner body and the suction air flow from the suction port opened on the bottom surface of the suction port main body are described above. In a suction port body of an electric vacuum cleaner having a suction inflow channel leading to a cleaner body and a movable brush driven by a motor or a turbine disposed on the suction inflow channel in the suction port body, the movable brush is It is characterized in that it reciprocally swings around a support shaft in a front-back direction intersecting the direction of the suction airflow.

According to a second aspect of the present invention, the suction port main body connected to the cleaner body and the suction port for guiding the suction airflow from the suction port opened at the bottom surface of the suction port main body to the cleaner main body. In a suction port body of an electric vacuum cleaner having an inflow path and a movable brush which is arranged on the way of the suction inflow path in the suction port body and is driven by a motor or a turbine, the movable brush is in a direction of the suction airflow. It is characterized by performing a reciprocating linear motion in the left-right direction.

The invention according to claim 3 of the present invention is claim 1
In the invention according to the second or second aspect, the movable brush is detachable, and a plurality of brush bristles and blades are vertically symmetrically provided.

According to a fourth aspect of the present invention, the suction port body connected to the cleaner body, and the suction port for guiding the suction airflow from the suction port opened at the bottom surface of the suction port body to the vacuum cleaner body. In an inlet of an electric vacuum cleaner having an inflow passage and a rotating brush driven by a motor or a turbine, which is arranged on the way of the inlet inflow in the inlet main body, in front of the rotating brush, It is characterized in that a second brush that reciprocally swings around the support shaft in the front-rear direction intersecting the direction is installed.

According to a fifth aspect of the present invention, the suction port main body connected to the cleaner body, and the suction port for guiding the suction airflow from the suction port opened at the bottom surface of the suction port main body to the vacuum cleaner body. In a suction port body of an electric vacuum cleaner having an inflow path and a rotating brush which is arranged on the way of the suction inflow path in the suction port body and is driven by a motor or a turbine, on the left and right sides of the rotating brush, The present invention is characterized in that a second brush that reciprocally swings around the support shaft is installed in the left-right direction that intersects the direction of the suction air flow.

When the movable brush is reciprocally rocked back and forth around the support shaft as in the invention according to claim 1, the space required for the rocking is smaller than the rotation space required for the rotary brush. With the movable brush that reciprocally swings, there is no risk of involving a finger, which is seen in a rotating brush.

When the movable brush is reciprocated linearly in the left-right direction as in the second aspect of the invention, the space required for the reciprocal linear movement is the rotational space required for the rotary brush, as in the first aspect of the invention. Compared to, less is required.
With a movable brush that reciprocates in a straight line, there is no danger of involving a finger, as is the case with a rotating brush.

According to the third aspect of the present invention, one movable brush can be flipped upside down and replaced according to the type of floor surface such as tatami mat, carpet, carpet, etc., so that flocking or blades can be used properly.

According to the fourth aspect of the present invention, the dust in front of the rotating brush, which cannot be reached by the conventional rotating brush, is also reduced to the second amount.
Can be scraped off with a brush.

According to the fifth aspect of the present invention, the second brush can scrape off dust on the left and right sides of the rotary brush that cannot be reached by the conventional rotary brush.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIGS. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view showing a suction port body of an electric vacuum cleaner in a partially cutaway manner, and FIG. A vertical side view, and FIG. 3 is a vertical front view of the main part. In each drawing, reference numeral 1 is a suction port main body, and an upper case 1a and a lower case 1b are provided with a bumper 13
Butt through. The suction pipe 3 is attached to the rear opening between the abutting surfaces of the upper and lower cases 1a and 1b,
The suction port body 1 and the cleaner body (not shown) are connected via the suction pipe 3 and a hose (not shown). A suction port 2 is formed on the bottom surface of the lower case 1b and extends in the lateral direction. The insides of the upper and lower cases 1a and 1b are partitioned by partition walls 24a and 24b into a power transmission chamber 26 and a suction inflow passage 25 that guides the suction airflow 3a from the suction port 2 to the suction pipe 3.

Inside the suction inlet body 1, the motor 4 is incorporated in the power transmission chamber 26, and the movable brush 5 driven by the motor 4 is incorporated in the suction inlet passage 25 above the suction inlet 2. The movable brush 5 has a plurality of brush bristles 5b planted on the lower surface of a horizontally long base 5a, and the brush bristles 5b are incorporated so as to face the suction port 2. Above the movable brush 5, the support shaft 8 is provided with left and right bearings 10 and 10.
Is laid in parallel with. One of the bearings 10 has the partition wall 24.
It is fitted and fixed to a. The movable brush 5 has support plates 9 integrally coupled to the left and right ends of the base 5a, and the upper ends of the left and right support plates 9 are supported by the support shaft 8 so as to be swingable back and forth. A rotatable shaft 12 is inserted and supported below the bearing 10 in parallel with the support shaft 8.
The pulley 11 is fixed to one end facing the power transmission chamber 26, and the pulley 11 and the pulley 27 on the shaft of the motor 4 are fixed.
Hang the belt 14 on. The rotating body 6 is fixed to the other end of the shaft 12 facing the suction inflow passage 25 so as to closely face the outer end surface of the support plate 9. Therefore, the rotation of the motor 4 is transmitted to the rotating body 6 via the pulley 27, the belt 14, the pulley 11, and the shaft 12.

The rotating body 6 facing the outer end surface of the support plate 9
An eccentric pin 6a is provided at a position deviated by x from the center of rotation on the end face of the cam plate, while a cam groove 9a is formed on the outer end face of the support plate 9 so as to extend linearly in the vertical direction. The tip of the eccentric pin 6a is slidably engaged with 9a. Therefore, as the rotator 6 rotates, the eccentric pin 6a slides back and forth in the cam groove 9a, so that the support plate 9 reciprocally swings around the support shaft 8 in the front-back direction intersecting the direction of the suction airflow 3a. The movable brush 5 integrated with the support plate 9 reciprocates in the same direction.

In the above structure, dust that is sucked together with the suction airflow from the suction port 2 of the suction port body 1 by driving the cleaner body (not shown) is sucked into the suction passage 25, the suction pipe 3, and the hose (see FIG. It is guided to the dust collecting chamber on the main body side of the cleaner through a not shown). At this time, the movable brush 5 reciprocates back and forth around the support shaft 8 by driving the motor 4 to scrape off the dust that has settled on the floor surface, and the scraped dust is sucked together with the suction airflow. At that time, according to the movable brush 5 that reciprocates back and forth around the support shaft 8, the conventional rotary brush 4 as shown in FIGS. 11 and 12 is used.
Since the swinging space is smaller than the rotating space required for 0, the suction port body 1 can be downsized accordingly. In addition, it can be used safely without the risk of involving a finger as seen in the rotating brush 40. The combination of the eccentric pin 6a of the rotating body 6 and the support plate 9 having the cam groove 9a with which the eccentric pin 6a engages allows the rotation of the motor 4 even in a narrow space in the suction port body 1. The swing motion of the movable brush 5 can be changed to the swing motion of the movable brush 5 reliably and easily.

(Second Embodiment) FIGS. 4 and 5 show a third embodiment of the present invention. In this embodiment, the movable brush 5
The upper ends of the support plates 9 integrally coupled to the left and right ends of the are inserted and supported by the support shaft 8 so as to slide in the left and right directions along the support shaft 8. A sloping cam 6b is formed on the end face of the rotating body 6 facing the outer end face of one of the support plates 9, while a protrusion 9b is provided on the outer end face of the support plate 9 and the tip of the protrusion 9b is attached to the slope cam. Abut on 6b. An elastic body 1 such as a coil spring is provided between the other support plate 9 and the bearing 10 facing the support plate 9.
7, the elastic force of the elastic body 17 always causes
By pressing and urging the movable brush 5 toward the rotating body 6, the contact state between the tip of the protrusion 9b and the slope cam 6b is maintained. Therefore, while the rotating body 6 makes one rotation, the movable brush 5 reciprocates linearly in the left-right direction intersecting the direction of the suction airflow 3a along the support shaft 8 by the difference of the slope cam 6b. Other configurations are the same as those of the first embodiment.

According to this embodiment, since the movable brush 5 reciprocates linearly in the left-right direction, the movement space is smaller than the rotation space required for the conventional rotary brush 40 as in the case of the first embodiment. As a result, the suction port body 1 can be downsized. In addition, it can be used safely without the risk of involving a finger as seen in the rotating brush 40. The combination of the slant cam 6b of the rotating body 6 and the support plate 9 having the projection 9b that abuts on the slant cam 6b allows the rotation of the motor 4 to be linear in the movable brush 5 even in a narrow space in the suction port body 1. The movement can be surely and easily changed to the movement, but the rotation of the motor 4 can be also changed to the linear movement of the movable brush 5 by another mechanism.

(Third Embodiment) FIGS. 6 and 7 show a third embodiment of the present invention. In this embodiment, the movable brush 5
, A plurality of brush bristles 5b are planted on either one of the upper surface and the lower surface of the laterally long base 5a, and the blade 1
6 is embedded and fixed. The movable brush 5 is detachably connected to and supported by the left and right support plates 9. That is, at one end on the power transmission side of the base 5a of the movable brush 5,
A tie rod 18 provided with a lever 18a is provided so as to be able to move in and out in the left-right direction via an elastic body 17 such as a coil spring, and the tip of the tie rod 18 is supported by a support plate 9 facing this.
It is removably inserted into the concave portion 9c provided on the end surface of the. On the other hand, a protrusion 5c is provided on the other end of the base 5a, and the protrusion 5c
The tip of c is removably inserted into a concave portion 9c provided on the end surface of the support plate 9 facing the tip. Therefore, the movable brush 5
Is a protrusion 5c and a tie rod 18 between the left and right support plates 9 and 9.
However, when the lever 18a is pinched and the tie rod 18 is retracted and moved toward the center in the left-right direction against the elastic force of the elastic body 17, the tip of the tie rod 18 is pulled out from the recess 9c. The movable brush 5 can be removed from between the left and right support plates 9. Other configurations,
For example, by driving the motor 4, the movable brush 5 is supported by the support shaft 8
The first is about the structure that swings back and forth around.
This is the same as that of the embodiment.

According to this embodiment, the left and right support plates 9
By reversing the movable brush 5 with respect to 9 and replacing it, it is convenient to use the brush bristles 5b or the blades 16 according to the type of floor mat, carpet, carpet, or the like. The movable brush 5 of this embodiment can be similarly applied to the movable brush 5 of the second embodiment that reciprocates linearly in the left-right direction along the support shaft 8.

(Fourth Embodiment) FIG. 8 shows a fourth embodiment of the present invention. In this embodiment, a rotary brush 19 which is rotationally driven by a motor 4 is installed inside the suction port body 1, and another second brush 21 is provided in front of the rotary brush 19 as a rotary brush 19. Place them in parallel. The second brush 21 is swingably supported in the front-rear direction on a support shaft 22 installed parallel to the front of the rotating brush 19, and has a chevron projection 20a at one end in the left-right direction of the rotating brush 19. The cam 20 of the upper portion is fixed, and the projection 21a of the upper end portion extending above the support shaft 22 of the second brush 21 is brought into contact with the peripheral surface of the cam 20. Then, an elastic body 23 such as a coil spring is interposed between the upper end portion of the second brush 21 and the upper case 1a, and the elastic force of the elastic body 23 always causes the upper end of the second brush 21 to move. By pressing and urging the portion toward the rotary brush 19, the tip of the protrusion 21 a is pressed against the peripheral surface of the cam 20.
Therefore, while the rotating brush 19 makes one rotation, the second brush 21 reciprocates back and forth around the support shaft 22 by the protrusion height of the chevron protrusion 20 a of the cam 20. Other configurations are the same as those of the first embodiment.

According to this embodiment, FIG. 11 and FIG.
The dust that has settled on the floor surface in front of the rotary brush 19 that cannot be reached by the conventional rotary brush 40 shown in FIG. 2 can be scraped off by the second brush 21 and the dust collection efficiency can be further improved. . Further, the motor 4 that drives the rotating brush 19 can also be used as the power source of the second brush 21. The combination of the cam 20 and the projection 21a that comes into contact with the cam 20 allows the rotation of the rotary brush 19 to be controlled by the second brush 2 even in a narrow space inside the suction port body 1.
Although it is possible to surely and easily change the swing motion of the first brush back and forth, the rotation of the rotary brush 19 can be changed to the swing motion of the second brush 21 by other mechanisms.

(Fifth Embodiment) FIGS. 9 and 10 show a fifth embodiment of the present invention. In this embodiment, a rotary brush 19 that is rotationally driven by a motor 4 is provided inside the suction port body 1.
And the second brush 21 is arranged on one side of the rotary brush 19 on the left and right sides. The second brush 21 is
The rotary brush 19 is inserted into and supported by a support shaft 22 installed in a direction orthogonal to the left and right sides of the rotary brush 19 so as to be swingable in the horizontal direction around the shaft 22, while a slope cam 19a is provided at one end of the rotary brush 19 in the horizontal direction. The projection 21a at the upper end extending above the support shaft 22 of the second brush 21 is brought into contact with the sloped cam 19a. Then, an elastic body 23 such as a coil spring is interposed between the upper end portion of the second brush 21 and the lower case 1b, and the elastic force of the elastic body 23 always causes the upper end of the second brush 21 to rise. By pressing the portion toward the rotary brush 19, the tip of the protrusion 21a is pressed against the sloped cam 19a. Therefore, while the rotary brush 19 makes one rotation, the second brush 21 reciprocates right and left around the support shaft 22 by the difference of the slope cam 19a. Other configurations are the same as those of the first embodiment.

According to this embodiment, FIG. 11 and FIG.
The dust that has settled on the floor surface on one side of the rotary brush 19 that cannot be reached by the conventional rotary brush 40 shown in FIG. 2 can be scraped off by the second brush 21 to further improve the dust collection efficiency. You can Further, the motor 4 that drives the rotating brush 19 can also be used as the power source of the second brush 21. The combination of the sloped cam 19a and the projection 21a that abuts the sloped cam 19a ensures that the rotation of the rotary brush 19 is ensured by the horizontal swing motion of the second brush 21 even in a narrow space inside the suction port body 1. It can be changed easily, but the rotating brush 1
The rotation of 9 can be converted into a swinging movement of the second brush 21.

In the present invention, the movable brush 5 and the rotating brush 1
As the power source of 9, a turbine or the like can be used instead of the motor 4.

[0028]

According to the first and second aspects of the present invention, the operating space of the movable brush 5 is smaller than the rotating space required for the conventional rotating brush 40. 1 can be miniaturized. Further, there is no danger of the fingers being caught as seen in the rotating brush 40, and the brush can be used safely.

According to the third aspect of the present invention, it is convenient that one movable brush can be used upside down and the brush bristles can be selectively used depending on the type of the floor surface by reversing and replacing the movable brush.

According to the fourth and fifth aspects of the present invention, dust on the front or side of the rotary brush, which cannot be reached by the conventional rotary brush, can be scraped off by the second brush and the dust collection efficiency can be improved. This is advantageous because it can be further improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing a partially cutaway suction port body according to a first embodiment.

FIG. 2 is a vertical sectional side view of a main part of the suction port body according to the first embodiment.

FIG. 3 is a vertical sectional front view of a main part of the suction port body according to the first embodiment.

FIG. 4 is a plan view showing a suction port body according to a second embodiment with a part thereof cut away.

FIG. 5 is a vertical sectional front view of a main part of a suction port body according to a second embodiment.

FIG. 6 is a vertical sectional front view of a main part of a suction port body according to a third embodiment.

FIG. 7 is a sectional view of a movable brush according to a third embodiment.

FIG. 8 is a vertical sectional side view of a main part of a suction port body according to a fourth embodiment.

FIG. 9 is a plan view of a main part of a suction port body according to a fifth embodiment.

FIG. 10 is a vertical sectional front view of a main part of a suction port body according to a fifth embodiment.

FIG. 11 is a plan view showing the inside of a conventional suction port body.

FIG. 12 is a vertical cross-sectional side view of a main part of a conventional suction port body.

[Explanation of symbols]

 1 Suction Port Main Body 2 Suction Port 3a Suction Airflow 4 Motor 5 Movable Brush 5a Base 5b Brush Hair 8 Support Shaft 16 Blade 19 Rotating Brush 21 Second Brush 22 Support Shaft 25 Suction Flow Path

Claims (5)

[Claims] 1. A suction port body connected to a cleaner body,
A suction inflow passage that guides the suction airflow from the suction opening opened at the bottom surface of the suction inlet body to the cleaner body, and a suction inflow passage in the suction inlet body, which is driven by a motor or a turbine. In a suction port body of an electric vacuum cleaner having a brush, the movable brush is configured to reciprocally swing around a support shaft in a front-back direction intersecting with a direction of the suction airflow. The suction body of the machine. 2. A suction port body connected to the vacuum cleaner body,
A suction inflow passage that guides the suction airflow from the suction opening opened at the bottom surface of the suction inlet body to the cleaner body, and a suction inflow passage in the suction inlet body, which is driven by a motor or a turbine. A suction port body of an electric vacuum cleaner having a brush, wherein the movable brush is configured to perform a linear reciprocating linear movement in a left-right direction with respect to a direction of the suction air flow. 3. The suction port body of the electric vacuum cleaner according to claim 1, wherein the movable brush is detachable and a plurality of bristles and blades are vertically symmetrically provided. 4. A suction port body connected to the vacuum cleaner body,
A suction inflow passage for guiding the suction airflow from the suction opening opened at the bottom surface of the suction inlet main body to the cleaner main body, and a suction inflow passage disposed in the suction inlet main body, which is driven by a motor or a turbine. In a suction port body of an electric vacuum cleaner having a brush, a second brush that reciprocally swings around a support shaft in a front-rear direction intersecting the direction of the suction airflow is installed in front of the rotating brush. The suction port body of the vacuum cleaner characterized by. 5. A suction port body connected to the cleaner body,
A suction inflow passage for guiding the suction airflow from the suction opening opened at the bottom surface of the suction inlet main body to the cleaner main body, and a suction inflow passage disposed in the suction inlet main body, which is driven by a motor or a turbine. In a suction port body of an electric vacuum cleaner having a brush, a second brush that reciprocally swings around a support shaft in a lateral direction intersecting the direction of the suction airflow is installed on a side of the rotary brush. The suction port body of the electric vacuum cleaner characterized in that.