JP2014033934A - Vacuum cleaner, and suction port body for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port body for a vacuum cleaner capable of clearly collecting dust and litter in a corner part between a wall and a floor surface without exception, and a vacuum cleaner having it.SOLUTION: A suction port body includes: a body part 51 having a dust collecting opening 51x opposite to a floor surface; and a bumper 52 provided to cover a front end of the body part 51. The bumper 52 includes: an intake port 52x formed directing from the front end of the body part 51 to the floor surface; a front plate part 52a provided below the intake port with a lower end coming into contact with a vertical surface to the floor surface; and an exhaust port 52z provided along the lower end of the front plate part 52a. Since dust and litter in a corner part are blown off to the dust collecting opening 51x side with an air flow by the suction port body, even the corner part can be cleanly vacuumed.

Description

  The present invention relates to a suction port for a vacuum cleaner and a vacuum cleaner.

  Conventionally, a buffer body is provided at the front end of the main body case of the suction port body having a dust collection opening, and a plurality of protrusions extending in the left-right direction are provided on the front surface of the buffer body, so that the main body case is placed on the indoor wall during cleaning There has been proposed a vacuum cleaner that is configured to prevent damage due to collision (see, for example, Patent Document 1). Furthermore, in this vacuum cleaner, air flows between the protrusions from above in a state where the plurality of protrusions are in contact with the wall, and this airflow causes dust and dirt on the floor surface near the wall to be collected in the dust collection opening. It is configured to blow away.

  Further, there has been proposed a vacuum cleaner configured to prevent the main body case from colliding with and being damaged by a wall in the room during cleaning by providing a bumper at the front end of the main body case of the suction port (for example, , See Patent Document 2). In addition, this vacuum cleaner has a plurality of air intake holes that allow airflow to pass between the bumper and the main body case, and the airflow that passes through each air intake hole collects dust and debris on the floor near the wall. It is comprised so that it may blow off toward the opening part.

Japanese Patent No. 4040289 JP 2009-66351 A

  In the vacuum cleaner of patent document 1, if each protrusion part of a suction inlet body is worn out by colliding with a wall many times, in the state which each protrusion part contact | abutted against the wall, it is air between protrusion parts from upper direction. Is difficult to flow, and the ability to collect dust by blowing dust and debris on the floor near the wall toward the dust collection opening is reduced. In addition, there is a problem in that dust and dirt on the floor near the wall are likely to remain without being collected because no vertical airflow is generated near the center of the protruding portion extending in the left-right direction.

  In the vacuum cleaner of Patent Document 2, since the lower end of the bumper is curved toward the dust collection opening (rear), the air current does not reach the corner between the wall and the floor surface, and is therefore in the corner. Dust and dust cannot be collected by blowing off toward the dust collection opening by airflow. Further, since no airflow is generated between the air intake holes of the bumper, there is a problem that dust and dirt on the floor surface near the wall are likely to remain without being collected.

  The present invention has been made in view of such a problem, and is a suction mouth for a vacuum cleaner that can cleanly collect dust without leaving dust or dirt at the corner between the wall and the floor. And it aims at providing a vacuum cleaner provided with the same.

Thus, according to the present invention, the main body having a dust collection opening facing the floor surface, and a bumper provided so as to cover the front end of the main body,
The bumper includes an intake port formed in a direction from the front end of the main body portion toward the floor surface, and a front plate portion provided below the intake port so that the lower end can be in contact with a vertical surface with respect to the floor surface. A suction port body for a vacuum cleaner having an exhaust port provided along the lower end of the front plate portion.

  Moreover, according to another viewpoint of this invention, the vacuum cleaner provided with the vacuum cleaner main body incorporating an electric blower, and the suction inlet for the said vacuum cleaner connected with this vacuum cleaner main body is provided. .

According to the suction port body for a vacuum cleaner of the present invention, the lower end of the front plate portion of the bumper is a surface perpendicular to the floor surface (for example, a wall surface of a room, a wall surface of a screen or furniture, a step portion of a staircase) The vertical surface).
Therefore, according to the vacuum cleaner provided with the suction port body of the present invention, when the cleaner body is driven to clean the corner between the floor surface and the vertical surface, the front plate portion of the suction port body bumper When the lower end is brought into contact with the vertical surface, the air above the bumper passes through the intake port and blows out from the exhaust port. Then, the airflow blown out from the exhaust port flows along the vertical plane and reaches the corner. As a result, dust and dirt at the corners are blown off to the dust collection opening side by the air flow, so that the corners are cleaned cleanly.

It is a schematic perspective view which shows Embodiment 1 of the vacuum cleaner in this invention. It is a perspective view which shows the suction inlet used for the electric vacuum cleaner of Embodiment 1. It is a front view which shows the suction inlet body of FIG. It is a right view which shows the suction inlet body of FIG. It is a top view which shows the suction inlet body of FIG. It is a bottom view which shows the suction inlet body of FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is explanatory drawing which shows the shape of the rib provided in the ventilation path in the suction inlet of Embodiment 1, and the direction of airflow. It is explanatory drawing which shows the modification 1 (Embodiment 2) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 2 (Embodiment 3) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 3 (Embodiment 4) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 4 (Embodiment 5) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 5 (Embodiment 6) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 6 (Embodiment 7) of a rib, and the direction of airflow. It is explanatory drawing which shows the modification 7 (Embodiment 8) of a rib, and the direction of airflow.

The suction port body for a vacuum cleaner of the present invention includes a main body portion having a dust collection opening facing the floor surface, and a bumper provided so as to cover the front end of the main body portion.
The bumper is a front plate provided below the intake port so that the intake port formed in a direction from the front end of the main body portion toward the floor surface and a lower end of the bumper can contact a vertical surface with respect to the floor surface. Part and an exhaust port provided along the lower end of the front plate part.
The suction inlet for a vacuum cleaner of the present invention may be configured as follows.

The lower end of the front plate portion may have a cross-sectional shape that curves forward as it goes to the floor surface.
In this way, since the airflow blown out from the exhaust port at the lower end of the front plate portion easily flows along the vertical surface, the corner portion between the floor surface and the vertical surface can be effectively dedusted. .

The air inlet of the bumper is divided into a plurality of parts,
A ventilation path may be provided between the lower end of the front plate part and the front end of the main body part, and a rib may be provided in the ventilation path.
By doing so, it is possible to prevent damage caused by the bumper colliding with the surface perpendicular to the floor surface.

The rib may be configured to disperse the airflow that enters from the intake port and passes through the lower ventilation path in the left-right direction and ejects the airflow from the exhaust port. Specifically, the rib may have a side inclined with respect to the floor at the end on the exhaust port side.
In this way, even if the airflow does not flow between the two adjacent intake ports, the airflow can be blown out uniformly from the exhaust port. Dust can be removed evenly so that no dust remains.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a suction port body for a vacuum cleaner and a vacuum cleaner according to the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a schematic perspective view showing a first embodiment of the electric vacuum cleaner according to the present invention, and FIG. 2 is a perspective view showing a suction port used in the electric vacuum cleaner according to the first embodiment.
The electric vacuum cleaner 1 includes a vacuum cleaner body 2 having a dust collection unit and an electric blower, and a suction port body 5 connected to the cleaner body 2 through a hose 3 and an extension hose 4. The handle 3a of the hose 3 is provided with an operation unit (not shown).
Since the feature of the present invention is the suction port 5 and other configurations are not particularly limited, the suction port 5 will be mainly described.

  3 is a front view showing the suction port body of FIG. 2, FIG. 4 is a right side view showing the suction port body of FIG. 2, and FIG. 5 is a plan view showing the suction port body of FIG. 6 is a bottom view showing the suction port body of FIG. 2, FIG. 7 is a sectional view taken along line AA in FIG. 3, and FIG. 8 is a sectional view taken along line BB in FIG. Moreover, FIG. 9 is explanatory drawing which shows the shape of the rib provided in the ventilation path in the suction inlet of Embodiment 1, and the direction of airflow.

  The suction port body 5 has a T-shape as a whole, and is provided so as to cover a main body portion (head portion) 51 having a dust collection opening 51x facing the floor surface F and a front end 51a of the main body portion 51. It has a bumper 52 and a connection hose part (neck part) 53 connected to the extension hose 4 so as to be swingable and connected to an intermediate position in the longitudinal direction at the rear end 51 b of the main body part 51.

The main body 51 is composed of a plurality of resin frame members including a base frame member 51F ₁ , a front frame member 51F ₂ , a rear frame member 51F _{3 and the} like, and the dust collection opening is formed in the lower part on the front end 51a side. 51x is formed, and a motor-driven rotary brush 51y is rotatably provided in the dust collection opening 51x. The main body 51 is not limited to resin. A plurality of wheels 51z ₁ , 51z ₂ and rollers 51z ₃ are provided at the lower part of the main body 51, and a substantially spherical connecting recess 51d into which the tip of the extension hose 53 is fitted is provided at the rear end 51b of the main body 51. Is provided. The wheel 51z ₁ disposed in the vicinity of the rear side of the dust collection opening 51x is a movable wheel that swings in the vertical direction, and also serves as a safety switch for the rotating brush 51y. That is, as shown in FIG. 7, when the main body 51 of the suction port 5 is on the floor surface F, the wheel 51z ₁ is accommodated in the main body 51 and the rotating brush 51y rotates. On the other hand, as shown in FIG. 4, when the main body 51 of the suction port 5 is lifted from the floor surface, the wheel 51z ₁ protrudes from the lower surface of the main body 51, and the rotation of the rotary brush 51y is stopped to ensure safety. To do.

In more detail, the front end 51a of the body portion 51 is formed of a front portion of the base frame member 51F _1. Then, on the front surface of the base frame member 51F _1, a plurality of ribs 51ar is provided. In the case of the first embodiment, a plurality of pairs of ribs 51ar arranged in an eight-letter shape are arranged at predetermined intervals in the left-right direction. Further, the lower end of the base frame member 51F ₁ more notch 51an are formed at predetermined intervals. Further, the stepped portion retreated to the top of the rib formation region in the front surface of the base frame member 51F ₁ is provided, above the stepped portion is the groove for fixing the plate portion 52b is formed after the later of the bumper 52 Yes.

  The bumper 52 made of resin (not limited to resin) has a front plate portion 52a, a rear plate portion 52b, a plurality of connecting portions 52c that connect the rear surface front end of the front plate portion 52a and the front lower end of the rear plate portion 52b. And a pair of side plate portions 52d protruding rearward from the left and right ends of the rear plate portion 52b. And between two adjacent connection parts 52c, it is set as the inlet 52x formed in the direction (up-down direction) which goes to the floor surface F from the front end 51a of the main-body part 51. As shown in FIG. That is, the air inlet 52x of the bumper 52 is divided into a plurality of parts.

The front plate portion 52a constituting the lower end portion of the bumper 52 has a cross-sectional shape that curves forward as it goes to the floor surface F, and the lower end portion of the front plate portion 52a contacts the vertical surface V with respect to the floor surface F. It is like that. More specifically, in the front plate portion 52a, the upper portion from the point P shown in FIG. 7 is a straight surface portion inside the intake port 52x, and the lower portion from the point P is a curved surface portion. The reason why the front plate portion 52a is formed to be curved is to allow the flow of air flowing in from the intake port 52x to flow directly below. It is also for reducing the impact when it collides with the vertical plane V. This will be described later. Here, “front” means a direction closer to the bumper 52 than the dust collection opening 51x. In addition, in the suction inlet 5 of this embodiment, although the case where the front board part 52a comprises the lower end part of the bumper 52 is demonstrated, it is not limited to this. For example, the rear plate portion 52 b or the side plate portion 52 d may be configured to be the lower end portion of the bumper 52.
In addition, an air passage 52y in which the plurality of ribs 51ar are disposed is provided between the front plate portion 52a of the bumper 52 and the front end 51a of the main body portion 51, and an exhaust port is provided along the lower edge of the front plate portion 52a. 52z is provided.

The upper plate portion 52b after the bumper 52, and grooves, is provided with convex portions formed on the bottom of the groove, ridge is fitted into the groove portion of the base frame member 51F _1. Furthermore, the grooves of the rear plate portion 52 b, the front and the front end of the frame member 51F ₂ is fitted, whereby the bumper 52 of the main body portion 51 is attached to the main body portion 51.

  The vacuum cleaner 1 of the present invention configured as described above is configured to drive the electric blower of the cleaner body 2 so that the air containing dust and dust on the floor surface F is sucked in as shown in FIG. 5 is collected into the dust collection opening 51x, and dust and dirt are collected in the dust collection section in the cleaner body 2. At this time, since the front plate portion 52a which is the lower end portion of the bumper 52 of the suction port body 5 is curved forward as it goes to the floor surface F, the corner between the floor surface F and the vertical surface V is cleaned. At this time, the lower end edge of the front plate portion 52 a comes into contact with the vertical plane V.

  In the state where the front plate portion 52a of the bumper 52 is in contact with the vertical plane V, the air above the vicinity of the bumper 52 flows in the direction of the arrow A and flows into each intake port 52x, passes through the ventilation path 52y, and exhaust port 52z. Blows out. Then, the air flow blown out from the exhaust port 52z flows right below along the vertical plane V, changes direction at right angles as indicated by the arrow B, flows along the floor surface F, and dust collecting opening 51x as indicated by the arrow C. Flows in. At this time, dust and dirt at the corner between the vertical surface V and the floor surface F flow into the dust collection opening 51x by the air flow.

  Also, as shown in FIGS. 7 to 9, a part of the airflow flowing into the ventilation path 52y from each intake port 52x of the bumper 52 is formed on a plurality of pairs of ribs 51ar arranged in an eight-letter shape in the ventilation path 52y. Along the left and right. Therefore, even if the inflow of the airflow into the ventilation path 52y is hindered by the plurality of connecting portions 52c that divide the plurality of intake ports 52x, the airflow is blown out uniformly from the exhaust ports 52z. On the other hand, when there is no rib 51ar or when the rib 51ar is straight, the connection portion 52c prevents the airflow from flowing into the ventilation path 52y, and the air flow from the arrow A to the arrow B as shown in FIG. Is difficult to get up. However, when the corners between the vertical plane V and the floor surface F are cleaned by the air flowing along the plurality of pairs of ribs 51ar arranged in the figure eight shape as described above, the corners are present at the corners. Dust can be removed by blowing away toward the dust collection opening 51x without leaving dust or dirt. In addition, the arrow in FIG. 9 has shown a part of airflow.

  In addition, in Embodiment 1 (FIG. 1), although the vacuum cleaner provided with the vacuum cleaner main body 2 which has a paper pack and a filter in a dust collecting part was illustrated, the vacuum cleaner main body may be a cyclone system. Or you may apply the suction inlet of this invention also to the type of vacuum cleaner which a user can lift and clean the vacuum cleaner main body which has a handle. That is, the suction port body of the present invention may be directly connected to the cleaner body.

  In this invention, the shape and arrangement | positioning of a rib are not limited to Embodiment 1, Even if it carries out like following Embodiment 2-8, an airflow can be blown out uniformly from an exhaust port. The ribs of these Embodiments 1 to 8 have a side inclined with respect to the floor surface F at the end on the exhaust port 52z side, that is, they do not have a side parallel to the floor surface F. doing. In the second to eighth embodiments, other configurations are the same as those of the first embodiment.

(Embodiment 2)
FIG. 10 is an explanatory diagram showing a rib modification 1 (second embodiment) and the direction of airflow.
In the case of the second embodiment, the dot-shaped rib 51ar ₁ is arranged above the vicinity of the pair of ribs 51ar arranged in the shape of an eight character as in the first embodiment.

(Embodiment 3)
FIG. 11 is an explanatory view showing a second modification (third embodiment) of the rib and the direction of airflow.
In the case of the third embodiment, the dot-shaped rib 51ar ₂ is arranged above the vicinity between the pair of ribs 51ar arranged in an eight-shape as in the first embodiment.

(Embodiment 4)
FIG. 12 is an explanatory view showing a third modification (embodiment 4) of the rib and the direction of airflow.
In the case of the fourth embodiment, the dot-shaped ribs 51ar ₃ are arranged below the vicinity of the pair of ribs 51ar arranged in an eight-letter shape as in the first embodiment.

(Embodiment 5)
FIG. 13 is an explanatory diagram showing a fourth modification of the rib (Embodiment 5) and the direction of airflow.
In the case of the fifth embodiment, the dot-shaped ribs 51ar ₄ are arranged below the vicinity between the pair of ribs 51ar arranged in an eight-shape as in the first embodiment.

As described above, in the second to fifth embodiments, the dot-shaped ribs 51ar _{1 to} ar ₄ are arranged in addition to the ribs 51ar arranged in the figure eight shape, and the air passages from the respective intake ports 52x of the bumper 52 are arranged. airflow that has flowed into the 52y will be varied in further lateral direction in the direction of air flow by the dot-like ribs 51ar ₁ ~ar _4. As a result, the airflow that blows out from the exhaust port 52z becomes even more uniform.

(Embodiment 6)
FIG. 14 is an explanatory view showing a fifth modification of the rib (sixth embodiment) and the direction of airflow.
In the case of the sixth embodiment, the elliptical ribs 51ar ₅ are arranged at predetermined intervals in the left-right direction.

(Embodiment 7)
FIG. 15 is an explanatory diagram showing a rib modification 6 (seventh embodiment) and the direction of airflow.
In the case of the seventh embodiment, isosceles triangular ribs 51ar ₆ with the apex angle downward are arranged at predetermined intervals in the left-right direction.

(Embodiment 8)
FIG. 16 is an explanatory diagram showing a rib modification 7 (Embodiment 8) and the direction of airflow.
In the case of the eighth embodiment, a plurality of isosceles triangular ribs 51ar ₇ are arranged at predetermined intervals in the left-right direction. At this time, the bases of the adjacent pair of isosceles triangular ribs 51ar ₇ are opposed to each other so that airflow can pass through a straight gap between them.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. In addition, the embodiments disclosed this time can be combined as appropriate without departing from the spirit of the embodiments. For example, the ribs described in the second embodiment and the third embodiment may be combined, and the dot-shaped ribs 51ar are provided above the vicinity of the pair of ribs 51ar arranged in the shape of an eight-character and above the vicinity between the pair of ribs 51ar. ₂ may be arranged.

DESCRIPTION OF SYMBOLS ₁ Vacuum cleaner 2 Vacuum cleaner main body 3 Hose 4 Extension hose 5 Suction port body 51 Main body part 51a Front end 51ar, 51ar 1-51ar ₇ Rib 51x Dust collection opening 52 Bumper 52a Front plate part 52x Intake port 52z Exhaust port 52y Ventilation path F Floor surface V Vertical surface

Claims (6)

A main body having a dust collection opening facing the floor, and a bumper provided to cover the front end of the main body,
The bumper includes an intake port formed in a direction from the front end of the main body portion toward the floor surface, and a front plate portion provided below the intake port so that the lower end can be in contact with a vertical surface with respect to the floor surface. A suction port body for a vacuum cleaner having an exhaust port provided along the lower end of the front plate portion.   The suction port for a vacuum cleaner according to claim 1, wherein a lower end of the front plate portion has a cross-sectional shape that curves forward as it goes to the floor surface. The air inlet of the bumper is divided into a plurality of parts,
The suction inlet for a vacuum cleaner according to claim 1 or 2, wherein a ventilation path is provided between a lower end of the front plate part and a front end of the main body part, and a rib is provided in the ventilation path.   The suction port for a vacuum cleaner according to claim 3, wherein the rib is configured to disperse an airflow that enters from the intake port and passes through the ventilation path below and blows out from the exhaust port. body.   The suction opening for a vacuum cleaner according to claim 3 or 4, wherein the rib has a side inclined with respect to a floor surface at an end of the exhaust port.   The vacuum cleaner provided with the vacuum cleaner main body which incorporates an electric blower, and the suction inlet for vacuum cleaners as described in any one of Claims 1-5 connected with this vacuum cleaner main body.