JP7093943B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to an electric vacuum cleaner having a vacuum cleaner main body including a dust collecting chamber and an electric blower, and a suction pipe for sucking and removing dust and the like adhering to the surface to be cleaned.

Conventionally, an electric vacuum cleaner provided with a plurality of suction tubes for sucking and removing dust and the like adhering to the surface to be cleaned has been known (Patent Document 1).

The vacuum cleaner of Patent Document 1 uses a suction pipe, and since the suction pipe has a small opening area, it is possible to efficiently suck and clean dust in a relatively narrow cleaning place such as a groove of a sash or a gap of a sofa. Was equipped with. On the other hand, it was not easy to scrape out dust such as sand adhering to the middle portion of long-haired hair materials such as floor mats.

In order to solve the above problems, the vacuum cleaner described in Patent Document 2 has been developed. This vacuum cleaner has a structure in which a rotary cleaner is provided in front of the suction port and a suction tube is provided in the rear, and the rotary cleaner adheres to the middle part of long-haired hair material such as a floor mat. It was able to scrape out dust such as sand.

Registered Utility Model No. 320309 Jikkensho 55-34031 Gazette

However, the vacuum cleaner described in Patent Document 2 has no choice but to rely on the suction force from the suction pipe to remove the dust adhering to the deep part of the long-haired hair material such as the floor mat, and the opening of the suction port. Since the area is large, there is a problem that it is difficult to secure a sufficient suction force in the suction pipe when, for example, a power source having a small output provided in an automobile or the like is used.

The present invention solves the above-mentioned conventional problems, can efficiently clean a narrow cleaning place, can scrape out dust adhering to a deep part of a long-haired hair material such as a floor mat, and can efficiently suck the dust. The purpose is to provide an electric vacuum cleaner that can exert a high cleaning effect by ensuring sufficient suction power to suck dust even when using a power supply with a small output provided in automobiles and the like. do.

In order to solve the conventional problem, the invention of the vacuum cleaner according to claim 1 is fixed to a vacuum cleaner main body provided with an electric blower and a dust collecting chamber, and one end thereof is collected. It communicates with the dust chamber and has a thin tube shape at least near the tip of the other end, and is arranged near the suction tube made of an elastic member , the handle provided on the vacuum cleaner body, and the opening of the suction tube. In an electric vacuum cleaner having a rotary cleaner rotatably supported by a bearing and cleaning by the user holding the handle and reciprocating the vacuum cleaner body, the vacuum cleaner body The suction of the suction tube can be sucked only from the opening of the suction tube, and the opening of the suction tube is provided so as to have an inclination angle with respect to the surface to be cleaned on the side surface on the traveling direction side of the outward path at the time of cleaning. The rotary cleaner is provided with an outward-side inclined opening and a return-side inclined opening provided on the side surface on the traveling direction side of the return route during cleaning so as to have an inclination angle with respect to the surface to be cleaned. It is characterized in that it rotates in a direction approaching from the bottom to the top from the surface to be cleaned toward the return-side inclined opening .

In the invention of claim 1, since the suction to the vacuum cleaner main body can be sucked only from the opening of the suction tube, it is sufficient to suck the dust even when a power source having a small output provided in an automobile or the like is used. It is possible to secure a good suction force. In addition, the rotary cleaning body is placed near the opening of the suction pipe and rotates in the direction from the bottom to the top from the surface to be cleaned toward the inclined opening on the return path side . The dust adhering to the deep part of the long hair material can be scraped out, and the scraped dust can be efficiently sucked by the suction tube. Further, since large dust such as pebbles can be removed in advance by the suction pipe in the front, it is less likely that the rotating cleaning body in the rear scatters the large dust, and the safety can be improved. In addition, the suction pipe on the outward route pushes down or scrapes off long-haired hair materials such as floor mats, so that the rotary cleaning body on the return route can penetrate deeper and scrape out the adhering dust. Efficiency can be increased.

The invention of claim 2 is characterized in that, in the invention of the electric vacuum cleaner of claim 1, shatterproof means made of an elastic member is installed so as to surround at least three sides of the rotary cleaning body. Therefore, it is possible to prevent the dust scraped out by the rotary cleaning body from scattering to the surroundings, so that the safety can be improved, and the dust left behind by the suction pipe can be scraped off, and the cleaning efficiency is improved. be able to.

The invention of claim 3 is characterized in that, in the invention of the vacuum cleaner of claim 1 or 2 , the opening area of the outward-side inclined opening is larger than the opening area of the inbound- side inclined opening . Therefore, even when the vacuum cleaner body is tilted and used, the outward-side inclined opening and the inbound-way-side inclined opening of the suction pipe face the surface to be cleaned, so that dust can be sucked. Further, when the vacuum cleaner body is reciprocated, the suction pipe can suck the dust without dragging it. Further, the inclined opening of the suction pipe can suck large dust such as pebbles from the outward route side and small dust such as sand from the return route side, so that the cleaning efficiency is improved without excessively expanding the opening area. be able to.

The invention of claim 4 is the invention of the electric vacuum cleaner according to any one of claims 1 to 3 , wherein the suction pipe is connected to the vacuum cleaner body by an elastic body made of an elastic member, and can protrude from the rotary cleaning body. The tip of the suction tube is urged toward the surface to be cleaned by the elastic body. Therefore, even when the vacuum cleaner body is tilted from the direction perpendicular to the surface to be cleaned toward the surface to be cleaned, the tip of the suction pipe can be brought into contact with the surface to be cleaned, which improves operability. At the same time, cleaning efficiency can be improved.

The invention of claim 5 is the invention of the electric vacuum cleaner according to any one of claims 1 to 4 , wherein the rotary cleaning body has a rotary shaft, and the central portion of the rotary shaft in the longitudinal direction is pivotally supported by a bearing. It is characterized by that. Therefore, both ends of the rotary cleaning body in the longitudinal direction can be brought into contact with the surface to be cleaned, and the rotary cleaning body can be brought close to a gap or a wall when cleaning a narrow place such as in an automobile. The range can be expanded.

The invention of the vacuum cleaner according to claim 1 can secure a sufficient suction force for sucking dust even when a power source having a small output is used. In addition, dust adhering to the deep part of long-haired hair material such as a floor mat can be scraped out, and the scraped dust can be efficiently sucked by a suction tube. Further, the inventions of claims 1 to 3 can increase the safety and the cleaning efficiency.

Further, the invention of claim 4 can improve the operability of the vacuum cleaner and can improve the cleaning efficiency. Further, according to the fifth aspect of the present invention, when cleaning a narrow place such as the inside of an automobile, the rotary cleaning body can be brought close to a gap or a wall, so that the cleaning range can be expanded.

A perspective view showing a first embodiment of the vacuum cleaner according to the present invention. (A) Front view of the vacuum cleaner of the first embodiment (b) Bottom view of the same Partial sectional view of the vacuum cleaner of the first embodiment (A) and (b) AA cross-sectional view of FIG. (A)-(e) Front view showing an embodiment of the shape of the tip of the suction tube. A perspective view showing a second embodiment of the vacuum cleaner according to the present invention. BB sectional view of FIG. Sectional drawing which shows the case where the vacuum cleaner main body of the electric vacuum cleaner of 2nd Embodiment is tilted Sectional drawing which shows the state which compressed the elastic body of the electric vacuum cleaner of 2nd Embodiment

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment.

1 is a perspective view showing a first embodiment of the vacuum cleaner according to the present invention, FIG. 2A is a front view of the vacuum cleaner, and FIG. 2B is a bottom view of the same. Further, FIG. 3 is a partial cross-sectional view of the vacuum cleaner of the first embodiment. A first embodiment of the vacuum cleaner according to the present invention will be described below with reference to these figures.

The vacuum cleaner 10 of the first embodiment is fixed to a vacuum cleaner main body 1 provided with an electric blower 2 and a dust collecting chamber 3 and a vacuum cleaner main body 1, and one end thereof communicates with the dust collecting chamber 3 and the like. At least in the vicinity of the tip of the end is a thin tube shape, and it is arranged near the openings of a plurality of suction tubes 5, 5 ... It has a rotary cleaner 6 supported by.

The power switch 1a is installed on the handle 1b provided in the vacuum cleaner main body 1, and the electric blower 2 is supplied with electricity from the power cord 2a connected to the power supply, and is activated by turning the power switch 1a on and off. The stop is made. Further, the dust collecting chamber 3 is made of a transparent member so that the dust inside can be visually recognized from the outside, and is provided with a filter 4.

The rotary cleaning body 6 has a rotary shaft 6b, and a brush or a blade 6c is fixed to the rotary shaft 6b. Further, the central portion of the rotating shaft 6b in the longitudinal direction is pivotally supported by the bearing 6a. Further, as shown in FIG. 3, the motor 9 is installed in the motor cover 9a, and the rotational force of the motor 9 is transmitted to the rotating shaft 6b via the timing belt 11b mounted on the pulley 11a. The rotary cleaning body 6 is rotated and stopped by turning the power switch 1a on and off. Here, by arranging the bearing 6a in the central portion in the longitudinal direction of the rotary shaft 6b, both ends in the longitudinal direction of the rotary cleaning body 6 can be brought into contact with the surface to be cleaned, and cleaning of a narrow place such as inside an automobile can be performed. At times, the rotating cleaning body can be brought closer to a gap, a wall, or the like, so that the cleaning range can be expanded. The present invention also includes the case where the bearings are installed at both ends of the rotary cleaning body 6.

Around the rotary cleaning body 6, shatterproof means 7 made of an elastic member is installed so as to surround at least three sides of the rotary cleaning body 6. The scattering prevention means 7 can prevent the dust scraped out by the rotary cleaning body 6 from scattering around, so that the safety can be improved and the dust left behind by the suction pipe 5 can be scraped off. , Cleaning efficiency can be increased. Further, a plurality of slits 7a, 7a ... Are formed in the shatterproof means 7, and the slits 7a facilitate the deformation of the shatterproof means 7. Although the shatterproof means 7 of the first embodiment shows a blade-shaped one, it may be a brush-shaped one. Further, the tip portion of the shatterproof means 7 in contact with the surface to be cleaned is not limited to a linear shape, and various shapes such as a wave shape, a mountain shape, and a saw blade shape can be selected. Further, although the shatterproof means 7 can surround three sides with one member, considering the deformation when the vacuum cleaner main body 1 is tilted from the direction perpendicular to the surface to be cleaned, each direction is taken into consideration. It is preferable to install separate shatterproof means 7 for each.

The suction to the vacuum cleaner main body 1 is configured so that the suction can be performed only from the suction pipe 5. As a result, it is possible to secure a sufficient suction force for sucking dust even when a power source having a small output provided in an automobile or the like is used.

Further, the rotary cleaning body 6 is arranged in the vicinity of the opening of the suction pipe 5 and is configured to rotate from the surface to be cleaned toward the opening direction of the suction pipe 5. As a result, it is possible to scrape out the dust adhering to the deep part of the long-haired hair material such as the floor mat, and it is possible to efficiently suck the scraped out dust by the suction pipe.

4 (a) is a cross-sectional view taken along the line AA of FIG. 2, and shows a case where the traveling direction of the vacuum cleaner is on the outbound route indicated by the white arrow, and FIG. 4 (b) is also shown in FIG. 2A. -A cross-sectional view, showing the case where the traveling direction of the vacuum cleaner is the return route indicated by the white arrow. The cleaning operation of the vacuum cleaner of the first embodiment will be described below with reference to these figures.

The suction pipe 5 is arranged so as to be on the outward path side at the time of cleaning, and the rotary cleaning body 6 is arranged on the return path side. Therefore, since large dust such as pebbles can be removed in advance by the suction pipe 5 in front, the rotary cleaning body 6 in the rear is less likely to scatter large dust, and safety can be improved. In addition, the suction pipe on the outward route pushes down or scrapes off long-haired hair materials such as floor mats, so that the rotary cleaning body on the return route can penetrate deeper and scrape out the adhering dust. Efficiency can be increased. The rotary cleaning body 6 rotates clockwise on the drawing as shown by an arrow, and has pebbles, sand, sludge, dust such as food waste, and long hair such as a floor mat on the surface C to be cleaned. Various dusts adhering to the deep part of the material can be scraped out and directly guided to the suction tube 5.

The tip of the suction pipe 5 is provided with inclined openings 5a and 5b having inclination angles with respect to the surface to be cleaned C on the outward path side and the return path side at the time of cleaning, respectively, and the opening area of the inclined opening 5a on the outward path side. Is larger than the opening area of the inclined opening 5b on the return route side. Therefore, even when the vacuum cleaner main body 1 is tilted and used, the inclined openings 5a and 5b of the suction pipe 5 face the surface to be cleaned C, so that dust can be sucked.

Further, when the vacuum cleaner main body 1 is reciprocated, the suction pipe 5 can suck dust without dragging it. Further, the inclined openings 5a and 5b of the suction pipe 5 can suck large dust such as pebbles from the outward route side and small dust such as sand from the return route side, so that the opening area is not excessively widened. Cleaning efficiency can be improved. In the first embodiment, the suction pipe 5 has inclined openings 5a and 5b, but even when the openings are not inclined, if there is a clearance between the suction pipe 5 and the surface to be cleaned, dust is sucked. It can be included in the configuration of the present invention.

Here, the height of the inclined opening 5a of the suction tube 5 on the outward path side (the length in the longitudinal direction of the suction tube 5) can be appropriately selected in the range of 4 mm to 20 mm in relation to the suction force, and in particular. A height that can suck pebbles with a diameter of about 8 mm sandwiched between the soles is preferable. Further, the height of the inclined opening 5b on the return path side (the length in the longitudinal direction of the suction pipe 5) can be appropriately selected in the range of 2 mm to 10 mm, but small pebbles scraped out by the rotary cleaning body 6 and the like. A height of about 4 mm is preferable in order to efficiently suck sand. Furthermore, by designing the inner diameter of the suction pipe 5 to be the same as or larger than the height of the inclined opening 5a, pebbles sucked from the outward path side can be smoothly sucked without clogging the inside of the pipe.

Here, the dust sucked by the inclined opening 5b of the suction pipe 5 on the return path side is dust such as pebbles and sand blown by the rotary cleaning body 6, and is received by the scattering prevention means 7 and scattered. The dust collected by the preventive means 7 and the dust that could not be sucked by the suction pipe 5 on the outward route are included. Further, when the suction tube 5 is strongly pressed against the surface to be cleaned C, the inclined opening 5b of the suction tube 5 is deformed so as to be closer to the rotary cleaning body 6, and the opening is closer to the rotary cleaning body 6 side. Dust such as pebbles and sand can be further guided to the inclined opening 5b.

5 (a) to 5 (e) are front views showing an embodiment of the shape of the tip of the suction tube. The suction tube 15 having a triangular tip as shown in FIG. 5A is suitable for scraping out dust such as sand contained in the surface to be cleaned having long hair. Further, the suction pipe 25 having a round tip as shown in FIG. 5B can reduce the frictional resistance with the surface to be cleaned, so that the operability of the vacuum cleaner can be improved. Further, the suction tube 35 having a saw blade shape at the tip shown in FIG. 5C can scrape out dust such as sand like a brush. Further, since the suction pipe 45 having a slit at the tip portion shown in FIG. 5D has a small opening area, the suction force can be maintained and dust such as sand can be flexibly sucked. Further, the suction pipe 55 having a notch on one side of the tip portion shown in FIG. 5 (e) can suck dust having a large height and width.

FIG. 6 is a perspective view showing a second embodiment of the vacuum cleaner according to the present invention, and FIG. 7 is a sectional view taken along the line BB of FIG. A second embodiment of the vacuum cleaner according to the present invention will be described below with reference to these figures.

In the vacuum cleaner 20 of the second embodiment, a plurality of suction pipes 12, 12, ... Are fixed to a holder 13 having a hollow inside, and the inside of the plurality of suction pipes 12, 12, ... Is inside the holder 13. Communicate. Further, the holder 13 and the dust collecting chamber 16 are communicated with each other by a suction passage 14 in which a bellows is formed and can be expanded and contracted. Therefore, the dust sucked into the suction pipe 12 is carried to the dust collecting chamber 16 via the holder 13 and the suction passage 14.

The holder 13 is fixed to one end of the two thin cylinders 18b and 18b, and the other ends of the thin cylinders 18b and 18b are inserted inside the thick cylinders 18a and 18a. One end of the thick cylinders 18a and 18a is fixed to the vacuum cleaner main body 19, and an elastic body 17 made of a spring is installed on the outside of the thin cylinders 18b and 18b and the thick cylinders 18a and 18a. Therefore, the elastic body 17 urges the tips of the suction tubes 12, 12, ... Toward the surface to be cleaned. In addition, other elastic members such as elastic rubber can be used instead of the spring.

Further, in order to regulate the movable range of the elastic body 17 and the suction pipes 12, 12 ..., the holder 13 and the bearing 6a are connected by a separate member so that the holder 13 connected to each can be moved within a certain range with respect to the bearing 6a. You may let me. In addition, the movable range is increased by providing protrusions on the inner peripheral surface ends of the thick cylinders 18a and 18a and the outer peripheral surface ends of the thin cylinders 18b and 18b so that the elastic bodies 17 are designed so as to be retained from each other when extended. It can also be regulated.

In FIG. 7, the holder 13 is provided as a base for moving the suction pipe 12 by the elastic body 17, but by arranging the holder 13 so as to cover the outward path side of the rotary cleaning body 6, the role of preventing the scattered dust is prevented. Also fulfills. Further, the suction pipe 12 may be fixed by a fixing means such as a binding band or an adhesive instead of the holder 13, and by adjoining the suction pipes 12, 12, ... It is possible to prevent scattering and improve safety.

FIG. 8 is a cross-sectional view showing a case where the vacuum cleaner body of the vacuum cleaner of the second embodiment is tilted by 45 degrees from the direction perpendicular to the surface to be cleaned. In this state, the rotary cleaning body 6 rotates while being in contact with the surface to be cleaned C, and the suction pipe 12 is on the side to be cleaned so that the inclined opening 21b faces the surface to be cleaned by expanding and contracting the elastic body 17. Is urging. Further, since the scattering prevention means 7 is greatly deformed, it is preferable to install separate scattering prevention means 7 in each direction. Furthermore, from the viewpoint of the actual operating range of the user and the durability of the elastic body, the tilt angle of the vacuum cleaner body that can be urged is preferably about 45 degrees from the vertical direction, but as a design that can be urged more than that. Is also included in the present invention. In such a case, the suction efficiency is lowered because the opening of the suction pipe is further away from the rotary cleaning body, so that the mechanism is solved by using a mechanism in which the suction pipe rotates around the rotary cleaning body or the bearing. From the above, even when the vacuum cleaner body is tilted from the direction perpendicular to the surface to be cleaned toward the surface to be cleaned, the tip of the suction pipe can be brought into contact with the surface to be cleaned, so that operability is good. At the same time, cleaning efficiency can be improved.

FIG. 9 is a cross-sectional view showing a state in which the elastic body of the vacuum cleaner of the second embodiment is compressed. In this state, the elastic body 17 is compressed, and the thin cylinder 18b is housed inside the thick cylinder 18a. Further, since the suction passage 14 is formed by a bellows, it can be expanded and contracted. Then, as shown in FIG. 9, by arranging the suction passage 14 on the outward path side, both ends of the rotary cleaning body 6 in the longitudinal direction can be brought close to the wall. Further, when the suction passage 14 is arranged on the side surface side of the vacuum cleaner main body 19, sand and pebbles adhering to the surface to be cleaned C on the outward route side can be easily visually recognized.

The electric vacuum cleaner according to the present invention is used as a cleaning tool for sucking and removing dust and the like adhering to the surface to be cleaned.

1,19 Vacuum cleaner body 1a Power switch 1b Handle 2 Electric blower 2a Power cord 3,16 Dust collection room 4 Filter 5,12,15,25,35,45,55 Suction pipe 5a, 5b, 21a, 21b Inclined opening Part 6 Rotating cleaner 6a Bearing 6b Rotating shaft 6c Brush or blade 7 Anti-scattering means 7a Slit 9 Motor 9a Motor cover 10, 20 Vacuum cleaner 11a Pulley 11b Timing belt 13 Holder 14 Suction passage 17 Elastic body 18a Thick cylinder 18b Thin cylinder

Claims (5)

A vacuum cleaner body equipped with an electric blower and a dust collector,
A suction tube that is fixed to the vacuum cleaner body, has one end communicating with the dust collecting chamber, and has a thin tube shape at least near the tip of the other end and is made of an elastic member.
The handle provided on the vacuum cleaner body and
A rotary cleaning body arranged near the opening of the suction pipe and rotatably supported by a bearing,
In an electric vacuum cleaner that has the above and is cleaned by the user holding the handle and moving the vacuum cleaner body back and forth.
The suction to the vacuum cleaner body can be sucked only from the opening of the suction tube.
The opening of the suction pipe is an outward inclined opening provided on the side surface on the traveling direction side of the outward route during cleaning so as to have an inclination angle with respect to the surface to be cleaned, and a side surface on the traveling direction side of the return route during cleaning. It is provided with a return-side inclined opening provided so as to have an inclined angle with respect to the surface to be cleaned.
The rotary vacuum cleaner is an electric vacuum cleaner characterized in that it rotates in a direction approaching from bottom to top from the surface to be cleaned toward the return-side inclined opening . The electric vacuum cleaner according to claim 1, wherein anti-scattering means made of an elastic member is installed so as to surround at least three sides of the rotary cleaning body. The vacuum cleaner according to claim 1 or 2 , wherein the opening area of the outward-side inclined opening is larger than the opening area of the inbound- side inclined opening . The suction pipe is connected to the vacuum cleaner body by an elastic body made of an elastic member, and can protrude from the rotary cleaning body.
The vacuum cleaner according to any one of claims 1 to 3 , wherein the tip of the suction tube is urged toward the surface to be cleaned by the elastic body. The electric cleaner according to any one of claims 1 to 4 , wherein the rotary cleaner has a rotary shaft, and the central portion of the rotary shaft in the longitudinal direction is pivotally supported by a bearing.

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