JP2006102367A - Suction port body for vacuum cleaner, and vacuum cleaner equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction port body for a vacuum cleaner by which the inner part of a groove is efficiently cleaned, and to provide the vacuum cleaner equipped with the suction port body. <P>SOLUTION: The suction port body 1 for the vacuum cleaner is connected to a cleaner body and equipped with a suction port body body 2 having a suction port 5 which is opened on the bottom surface. A plate 6 having a notched part 7 which is opened downward is arranged on the front surface of the suction port body body 2. The plate 6 includes a notched blow passage shielding part 12 which is positioned in the rear part of the notched part 7, so as to receive air flowing from the notched part 7 and blow out the air toward a floor surface side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a suction port body of an electric vacuum cleaner capable of efficiently cleaning the inside of a groove, and an electric vacuum cleaner including the same.

In the suction port body of a conventional vacuum cleaner, there is a configuration in which a flexible body is provided on the front wall or the front surface of the suction port body, and a notch opening downward is formed on the bottom side of the flexible body. (For example, refer to Patent Document 1 and Patent Document 2). In these technologies, by providing a flexible body, when the suction port body is placed on the floor surface, a gap with an appropriate interval is provided between the suction port provided on the lower surface of the suction port body body and the floor surface. It is possible to ensure, and by providing the notch, it is possible to make it easier for the dust in front of the suction port body to be sucked into the suction port provided on the lower surface of the suction port body.
Japanese Utility Model Publication No. 52-112159 (page 4, FIG. 5) Japanese Examined Patent Publication No. 5-38609 (page 5, Fig. 8)

  In the above conventional vacuum cleaner, when the main body of the vacuum cleaner operates, the air in front of the flexible body flows into the suction port through the notch or the gap between the suction port body body and the floor, and together with this air The floor is cleaned by sucking dust such as dust on the floor. Here, the cutout portion of the flexible body provided on the front wall or the front surface of the main body of the suction port body is a region formed by a portion having no cutout (hereinafter referred to as a non-cutout portion) with the floor surface. Since a wider space is formed, air in front of the flexible body flows in from the notch.

  Considering the case of cleaning the floor groove using the above conventional vacuum cleaner, out of the air that has flown in and concentrated on the notch, the air that has flowed diagonally downward from the upper front side of the notch is cut off. It becomes an air flow toward the rear lower side of the notch. Therefore, when the suction port body is positioned so that the cutout portion is positioned on the groove, the airflow flows into the groove and winds up the dust, whereby the dust can be removed.

  However, in patent document 1 and patent document 2, since the back of the flexible body provided on the front wall or front surface of the suction port body is a suction air passage, the suction port is positioned so that the notch is positioned on the groove. Even when the body is positioned, most of the air flowing from the notch flows in parallel to the floor surface and flows into the suction port on the lower surface of the suction port body, and flows downward toward the inside of the groove. The proportion of quantity is small. Therefore, there has been a problem that internal dust cannot be sufficiently removed from deep grooves.

  The present invention has been made to solve these problems, and an object of the present invention is to obtain a suction port body of a vacuum cleaner capable of efficiently cleaning the inside of the groove and a vacuum cleaner provided with the same. To do.

  A suction port body of a vacuum cleaner according to the present invention is a suction port body of a vacuum cleaner having a suction port body body provided with a suction port that is connected to the vacuum cleaner body and opened on a bottom surface, the suction mouth body body A plate-like member provided with a notch that opens downward is disposed on the front side of the plate, and the plate-like member is located behind the notch and receives air flowing from the notch on the floor surface side. Is provided with a shielding part for blowing out.

  According to the present invention, in the plate-like member that is provided on the front surface of the suction port body and has a notch that opens downward, the air that has flowed from the notch into the portion located behind the notch. In response to this, a shielding part that blows out to the floor surface is provided, so that the air flowing from the notch can be made into an airflow that flows into the groove on the floor surface, and the air is wound up by this airflow to efficiently move the interior of the groove It can be cleaned.

Embodiment 1 FIG.
1 to 8 are drawings of a suction port body of a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 1 is a front perspective view, and FIG. 2 is a side sectional view.
1 and 2, a suction port body 1 is connected to a vacuum cleaner body (not shown) via a suction hose (not shown) and a suction pipe (not shown). A body main body 2, a vertical rotation connecting portion 3 connected to the rear side of the suction port body main body 2 so as to be rotatable in the vertical direction, and a pipe connected to the vertical rotation connecting portion so as to be rotatable in the left-right direction. It is comprised from the connection part 4. FIG.

  A suction port 5 is provided on the bottom surface of the suction port body 2, and air is caused to flow from the suction port 5 to the vertically rotating connecting portion 3 due to a negative pressure generated by a blower motor (not shown) during operation of the vacuum cleaner body. And sucked into the main body of the vacuum cleaner through the air passage in the pipe connecting portion. A plate 6 as a plate-like member constituting the front wall of the suction port 5 is provided on the front side of the suction port body 1.

3 is an enlarged perspective view of the plate, and FIG. 4 is a cross-sectional view taken along line AA of FIG.
The front plate 8 as a front plate member having a plurality of rectangular cutouts 7 at the lower end and the rear side of the front plate 8 are provided substantially vertically with an interval of, for example, 3 mm in this example. The rear plate 9 as the back plate member, and the front plate 8 and the spacer 10 for fixing the rear plate 9 are configured. Hereinafter, a description will be given assuming that a portion of the front plate 8 that has no notch is a non-notched portion 11 and a rear portion of the rear plate 9 that is a notch 7 of the front plate 8 is a notched air passage shielding portion 12. This notch air passage shielding part 12 is for receiving the air flowing in from the notch part 7 and blowing it out to the floor surface side.

  Returning to the description of FIG. 1 and FIG. The suction port body 2 is provided with a bumper 13 made of a rubber material from the front surface to the side surface to soften an impact at the time of collision with a wall or furniture. Further, a pair of front wheels 14 and a rear wheel 15 are provided at the bottom front side lower part and the rear side lower part of the suction port body main body 2, respectively, and when the suction port body 1 is placed on the floor surface 16, the front wheel 14 The rear wheel 15 forms a gap between the bottom surface of the suction port body 2 and the floor surface 16.

  The suction port 5 of the suction port body 2 is rotatably provided with a rotating brush 17 having a flocked outer peripheral portion, and is driven by a motor 18 provided inside the suction port body 2 (not shown). And the floor 16 is swept away. Electric power for driving the motor 18 is supplied to the motor power terminal 19 via a power supply terminal (not shown) of the suction pipe.

  Next, the operation | movement at the time of a driving | operation of a vacuum cleaner main body is demonstrated using FIGS. 5-8. 5-8 has shown the state which mounted the plate of the suction inlet on the groove | channel provided in the floor surface. FIG. 5 is a view showing the flow of air sucked into the notch from the front of the plate, and FIG. 6 is a view showing the flow of air inside the groove. FIG. 7 is a side cross-sectional view showing a cross section of the notch in a state where the suction port body is placed on the groove. FIG. 8 is a side cross-sectional view showing a cross section of the non-notched portion in a state where the suction port body is placed on the groove.

  Here, the groove 20 has a length of about 30 mm, a width of 3 mm, and a depth of about 10 mm, and is covered with approximately two cutout portions 7 of the plate 6. In addition, the space | interval of the plate 6 lower end and the floor surface 16 is set to 2 mm in this example, for example.

  When the main body of the electric vacuum cleaner is operated, the air in front of the suction port body 1 is sucked from the gap between the plate 6 and the floor surface 16. At this time, since the notch 7 is widely opened, more air flows into the notch 7 than does air below the non-notch 11. Therefore, as shown in FIG. 5, air flows into the notch 7 from the front periphery of the notch 7.

  When viewed from the side as shown in FIG. 7, the air a that has flowed in and concentrated in the cutout portion 7 is sucked diagonally downward from the upper front side of the cutout portion 7, and is located behind the cutout portion 7. Most of the rear plate 9 comes into contact with the cutout air passage shielding portion 12 of the rear plate 9, and most of the airflow descends downward b, and a part of the airflow passage shielding portion between the floor 16 and the cutout air passage shielding portion enters the inside of the suction port body 1. The airflow c is heading. The descending air flow b enters the inside of the groove 20 and comes into contact with the bottom surface of the groove 20, and then becomes upward air d while winding up the dust inside the groove 20, and the front side (left side in FIG. 7) and the lateral side (in FIG. 7). The airflow is directed in the direction orthogonal to the paper surface.

  On the other hand, as shown in FIG. 8, the airflow e sucked from the non-notched portion 11 is directly directed from the gap between the floor surface 16 and the non-notched portion 11 toward the inside of the suction port body 1 when viewed from the side. At the same time, it becomes f and joins with the rising air flow d containing dust that has entered from the lower side of the notch 7 inside the groove 20 and is sucked from the suction port 5 into the suction port body 1.

  As described above, according to the first embodiment, by providing the notch air passage shielding part 12 behind the notch part 7, the air that has conventionally flowed from the notch part and is directly sucked into the suction port. Can be brought into contact with the notched air passage shielding portion 12 to form a downdraft that enters the floor 16 side, that is, the inside of the groove 20. Therefore, even when the groove 20 is deep, it is possible to deeply enter the groove and wind up the dust, and a sufficient dust removing effect can be exhibited even for the deep groove 20.

Embodiment 2. FIG.
9 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 2 of the present invention, and FIG. 10 is a cross-sectional view taken along the line BB of FIG. 9 and 10, the same or corresponding parts as those in the first embodiment shown in FIGS.

  In the second embodiment, a cutout portion 21 is provided instead of the cutout portion 7 in the first embodiment shown in FIG. 3, and the other configuration is the same as that of the first embodiment. Here, the cutout portion 21 is provided with a curved portion 22 having an R shape in the left and right corners on the upper side in the cutout portion 7 in the first embodiment.

  By configuring in this way, substantially the same operational effects as those of the first embodiment can be obtained, and the corner portion is curved so that the corner portion is cut from the corner portion as compared with the case where the corner portion is left angular. The distance to the air suction surface below the notch 21 can be made uniform as a whole. For this reason, air is uniformly sucked from the entire periphery of the cutout portion 21, and the suction force acting on the periphery can be made uniform as a whole. In other words, when the corners are square, the suction force is particularly weak at the apex of the corners, and the suction force is uneven. By making the corners curved, the unevenness can be reduced. It becomes. Thereby, it is possible to increase the speed of the air that flows into the cutout portion 21 in a concentrated manner, and it is possible to generate a strong downdraft. Therefore, even when the groove 20 is deep, an airflow sufficient to wind up the dust accumulated on the groove bottom surface reaches the groove bottom surface, and a high dust removal effect can be obtained.

Embodiment 3 FIG.
FIG. 11 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 3 of the present invention, and FIG. 12 is a cross-sectional view taken along the line CC of FIG. 11 and 12, the same reference numerals are given to the same or corresponding parts as those in the first embodiment shown in FIGS.

  In the third embodiment, the cutout portion in the first embodiment shown in FIG. 3 is replaced by a curved cutout portion 23 that is curved in an arc instead of the rectangular cutout portion 7. The configuration is the same as in the first embodiment. The notch 23 is configured such that the notch height H1 is longer than the notch width W1.

  With this configuration, substantially the same operational effects as those of the first embodiment can be obtained, and the notch height H1 of the curved side (inner peripheral edge) 24 in the notch portion 23 is longer than the notch width W1. Thus, for example, the notch height H1 can be reduced to have the same dimension as the notch width W1, so that the air inflow angle at the upper edge of the notch 23 can be increased. It is possible to generate a strong downdraft when contacting the air passage shielding portion 12.

  Further, since the cutout portion 23 is curved in a bow shape, the distance from the inner peripheral edge 24 of the cutout portion 23 to the air suction surface below the cutout portion 23 is further increased as compared with the second embodiment. The air can be made uniform, and air can be sucked more uniformly over the entire inner peripheral edge 24 of the notch 23. As a result, the speed of the air that flows into the cutout portion 23 in a concentrated manner can be further increased, and a strong downdraft can be generated.

  According to the third embodiment, due to the operation described above, even when the groove 20 is deep, an airflow sufficient to wind up the dust accumulated on the bottom surface of the groove reaches the bottom surface of the groove, and a higher dust removal effect is obtained. Can do.

Embodiment 4 FIG.
FIG. 13 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 4 of the present invention, and FIG. 14 is a DD cross-sectional view of FIG. 13 and 14, the same reference numerals are given to the same or corresponding parts as those in the first embodiment shown in FIGS.

  In the fourth embodiment, the rear plate 9 in the first embodiment shown in FIG. 3 is replaced with a plurality of rectangular notches (hereinafter referred to as the rear side) with a predetermined interval at the lower end, like the front plate 8. A configuration in which the rear plate 9 and the front plate 8 thus configured face each other so that the positions of the notch portions are alternated and are fixed by the spacer 10 in that state. It is what. In the following description, a portion of the rear plate 9 that is located behind the cutout portion 7 of the front plate 8 will be described as a cutout air passage shielding portion 25. The notch air passage shielding portion 25 is configured to have the same width as the notch portion 7.

  Next, the operation | movement at the time of a driving | operation of a vacuum cleaner main body is demonstrated using FIGS. 13-16. FIG. 15 is a side cross-sectional view showing a cross section of the notch in a state where the suction port body is placed on the groove. FIG. 16 is a side cross-sectional view showing a cross section of the non-notched portion in a state where the suction port body is placed on the groove.

  As shown in FIG. 15, the air flow a sucked from the front of the notch 7 by operating the electric vacuum cleaner main body is sucked diagonally downward from the front upper side of the notch 7, and thus the first embodiment. In the same manner as described above, the lower plate 9 abuts against the cutout air passage shielding portion 25 of the rear plate 9 located behind the cutout portion 7, and most of the airflow descends downward b, and a part thereof is the floor 16 and the cutout air passage. The air flow c is directed toward the inside of the suction port 1 from the gap of the shielding portion 25. Here, in the fourth embodiment, since the rear notch portions 26 are provided on both the left and right sides of the notch air passage shielding portion 25, it flows from the notch portion 7 and enters the notch air passage shielding portion 25. Part of the abutting air passes through the rear notch portions 26 on both the left and right sides, and becomes an air flow toward the inside of the suction port body 1. This air flow is indicated by an air flow g in FIG. Note that the descending air flow b enters the inside of the groove 20 in the same manner as in the first embodiment, contacts the bottom surface of the groove 20, and then becomes the upward air current d while rolling up the dust inside the groove 20 (see FIG. 15). It goes to the left side) and to the side (in the direction orthogonal to the paper surface in FIG. 15).

  On the other hand, the air flow e sucked from the non-notched portion 11 is directed toward the inside of the suction port body 1 directly from the gap between the floor surface 16 and the non-notched portion 11 when viewed from the side as shown in FIG. As well as f, the ascending air current d including dust that has circulated from below the notch 7 inside the groove 20 and the air current g that has circulated from the notch airway shield 25 to the rear notch 26 are joined. The suction port 5 is sucked into the suction port body 1.

  As described above, according to the fourth embodiment, the rear notch portions 26 are provided on both the left and right sides of the notch air passage shielding portion 25, so that one of the air that has been concentratedly flowing into the notch portion 7 can be obtained. The portion can be an air flow g that passes through the rear cutout portion 26 and is sucked into the suction port 5, and the pressure loss in the air passage from the cutout portion 7 to the suction port 5 can be reduced. Thereby, the total amount of air flowing into the suction port 5 can be increased, and the wind speed of the airflow toward the lower inside of the groove 20 can also be increased. As a result, even when the groove 20 is deep, an airflow sufficient to wind up the dust accumulated on the bottom surface of the groove reaches the bottom surface of the groove, and a high dust removal effect can be obtained.

Embodiment 5. FIG.
17 is an enlarged perspective view of the suction port plate of the vacuum cleaner according to Embodiment 5 of the present invention, FIG. 18 is a cross-sectional view taken along line EE of FIG. 17, and FIG. 19 is a state in which the front plate is removed in FIG. FIG. 17 to 19, the same reference numerals are given to the same or corresponding parts as those in the fourth embodiment shown in FIGS. 13 to 15, and description thereof is omitted.

  In the fifth embodiment, a blocking portion 27 that closes the space behind the non-notched portion 11 of the front plate 8 in the fourth embodiment shown in FIGS. 13 to 15 is provided, and the lower end surface 27a of the blocking portion 27 is rearward. The plate is formed so as to be positioned above the lower end surface of the notch air passage shielding portion 25 of the plate, and other configurations are the same as those of the fourth embodiment. In this example, the blocking portion 27 is configured by extending a part of the spacer 10 downward. With this configuration, the space behind the non-notched portion 11 of the front plate 8 is closed by the closed portion 27, and the notched wind of the rear plate 9 is interposed between the lower end surface 27 a of the closed portion 27 and the floor surface 16. An interval wider than the interval between the lower end surface of the road shielding portion 25 and the floor surface 16 is secured. In addition, the space | interval of the lower end surface 27a of the obstruction | occlusion part 27 and the floor surface 16 is set to 4 mm in this example.

  By configuring in this way, in the fourth embodiment shown in FIG. 13, the airflow g (flowing from the notch 7, passing through the rear notch 26, and directly toward the inside of the suction port body 1 ( 16) can be shielded by the blocking portion 27 and can be an airflow directed downward through a space 27 b formed below the blocking portion 27. Thereby, while being able to increase the air quantity which goes to the inside of a groove | channel, a strong downdraft can be generated. As a result, even when the groove 20 is deep, an airflow sufficient to wind up the dust accumulated on the bottom surface of the groove reaches the bottom surface of the groove, and a high dust removal effect can be obtained.

  Here, the interval between the lower end surface 27a of the closing portion 27 and the floor surface 16 affects the ratio of the air that goes downward of the notch air passage shielding portion 25 and the air that goes to the space 27b on both sides thereof. By optimally setting the value, it is possible to effectively generate a downward air flow and enhance the dust absorption effect inside the groove. Here, widening the gap between the lower end surface of the blocking portion 27 and the floor surface 16 effectively produces the same effect as the provision of the rear notch portion 26 in the fourth embodiment, but is too wide. If it is too much, the flow rate directly sucked into the suction port 5 will increase and will not contribute to the dust suction inside the groove. On the other hand, if the interval is too narrow, the amount of air is reduced as a whole, which is not preferable, and it is desirable to set it appropriately in consideration of these factors.

  In addition, by providing the space 27b in this way, when the suction port body 1 is used on a carpet, the flocking 16a of the carpet reaches the lower surface of the notch air passage shielding portion 25 as shown in FIG. Even if there is a length, it is possible to secure an air passage toward the suction port 5, so that it is possible to maintain sufficient dust absorption performance on the carpet while improving the dust absorption performance inside the groove. It becomes.

Embodiment 6 FIG.
FIG. 20 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 6 of the present invention, and FIG. 21 is a front view of the notch portion of the plate, particularly the notch when used on a carpet. The part front view is shown. 20 and 21, the same or corresponding parts as those in the fifth embodiment shown in FIGS. 17 to 19 are denoted by the same reference numerals and description thereof is omitted.

  In the sixth embodiment, the shield end opening 28 is provided on both sides of the lower end of the notched air passage shield 25 in the fifth embodiment shown in FIG. It is. The width W of the shielding part end opening 28 is 2 mm in this example, and the width of the lower end of the notch air path shielding part 25 is narrower by 4 mm than the width of the notch part 7.

  With this configuration, substantially the same operational effects as those of the fifth embodiment can be obtained, and the shield end opening 28 is provided on both sides of the lower end of the notch air passage shield 25. When the body 1 is used on a carpet, even if the carpet flock 16a is notched long enough to reach the lower surface of the airway shield 25 as shown in FIG. The air path toward 5 can be prevented from being shielded. That is, the shielding portion end opening 28 can secure an air passage from the cutout portion 7 through the shielding portion end opening 28 to the suction port 5, while improving the dust absorption performance inside the groove. It is possible to maintain sufficient dust absorption performance on the carpet.

  Here, although the width of the lower end of the notch air passage shielding portion 25 is configured to be 4 mm shorter than the width of the notch portion 7, the width is not limited to this size, and is limited to a size capable of obtaining the dust absorption effect inside the groove. It can be shortened. Thereby, it becomes possible to deal with a carpet having a long bristle. According to the results of the experiments by the present inventors, when the width of the lower end of the notch portion 7 is limited to that limit and is longer than 1/2 of the width of the lower end of the notch portion, the groove It was confirmed that an internal dust absorption effect was obtained.

Embodiment 7 FIG.
22 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 7 of the present invention, and FIG. 23 is a cross-sectional view taken along the line FF of FIG. 22 and 23, the same or corresponding parts as those in the fourth embodiment shown in FIGS. 13 and 14 are denoted by the same reference numerals and description thereof is omitted.

  The suction port body 1 according to the seventh embodiment includes a non-notched portion 11 and a notched air passage shielding portion in the front plate 8 and the rear plate 9 of the suction port body according to the fourth embodiment shown in FIGS. 13 and 14. The portions corresponding to 25 are replaced with the brush hairs 29 and 30, respectively, and other configurations are the same as those in the fourth embodiment. The bristles 29 and 30 are fixed to the front plate 8 and the rear plate 9 by flocking.

  The suction port body 1 according to the seventh embodiment configured as described above can obtain substantially the same operational effects as the fourth embodiment. However, since the non-notched portion 11 and the notched airway shielding portion 25 that are made of the plate material in the fourth embodiment are replaced with the brush hairs 29 and 30, the air shielding effect is reduced, and the air to the rear is reduced. Leakage occurs, and the dust absorption performance inside the groove is somewhat inferior. However, when used on the carpet, the brush bristles 29 and 30 can obtain the effect of scraping the carpet surface, so that the performance as the suction port 1 of the vacuum cleaner is improved.

Embodiment 8 FIG.
24 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 8 of the present invention, and FIG. 25 is a cross-sectional view taken along the line GG of FIG. 24 and 25, the same reference numerals are given to the same or corresponding parts as those in the first embodiment shown in FIGS.

  In the suction port body of the eighth embodiment, the spacer 10 is omitted in the first embodiment shown in FIGS. 1 to 8, and the front plate 8 is thickened to form a front plate 31 having a thickness of 3 mm, for example. The front plate 31 and the rear plate 9 are directly fixed.

  By configuring in this way, substantially the same operational effects as in the first embodiment can be obtained. That is, when the operation of the main body of the vacuum cleaner is started and the air that has flowed in from the front periphery of the cutout portion 7 to the cutout portion 7 becomes an airflow directed downward by the cutout air passage shielding portion 12, FIG. And it flows similarly to the flow shown in FIG. 8, and it is possible to sufficiently remove the dust inside the groove. Here, in the eighth embodiment, because the front plate 31 has a thickness, side walls 31 a are formed on both sides of the cutout portion 7. For this reason, in the first embodiment, the air flowing in the gap between the non-notched portion 11 of the front plate 8 and the rear plate 9 can be turned downward. Therefore, the amount of air toward the inside of the groove is increased as compared with Embodiment 1, and higher dust removal performance can be obtained.

  Further, in the eighth embodiment, the lower end of the notch air passage shielding portion 12 and the lower end of the non-notch portion 11 of the front plate 31 have the same height, but the lower end of the notch air passage shielding portion 12 is the same height. You may make it comprise lower than the lower end of the notch part 11. FIG. That is, in this example, as described above, the distance between the lower end of the plate 6 and the floor surface 16 is set to 2 mm, for example, but the notch air passage shielding portion 12 is set to 1 mm, for example, with the floor surface 16. You may make it do. When configured in this way, the air sucked directly into the suction port 5 from the interval between the lower end of the notch air passage shielding portion 12 and the floor surface 16 is blocked by the notch air passage shielding portion 12 and heads downward. The air flow can be made, and the dust absorption performance inside the groove can be improved.

Embodiment 9 FIG.
FIG. 26 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 9 of the present invention, and FIG. 27 is a cross-sectional view taken along line HH in FIG. 26 and 27, the same or corresponding parts as those in the eighth embodiment shown in FIGS. 24 and 25 are denoted by the same reference numerals, and the description thereof is omitted.

  In the ninth embodiment, the front plate 31 in the eighth embodiment shown in FIGS. 24 and 25 is provided with a notch portion 32 instead of the notch portion 7, and the other configurations are the same as those in FIG. is there. The cutout portion 32 is formed such that the vertical cross-sectional shape gradually decreases in height from the upper end portion toward the lower end portion, and the front shape is substantially rectangular, and the upper left and right corners are curved. In addition to being formed, the inner peripheral edge of the cutout portion 32 and the cutout air passage shielding portion 33 of the rear plate 9 are configured to be smoothly connected by a curved surface 33a.

  According to the ninth embodiment, substantially the same operation and effect as in the eighth embodiment can be obtained, and the height of the cutout portion 7 is gradually decreased as the vertical cross-sectional shape is directed from the upper end portion to the lower end portion. Thus, the effect of smoothly directing the air flowing into the notch 32 downward is obtained. Further, the front shape is substantially rectangular and the upper left and right corners are curved, and the inner peripheral edge of the notch 32 and the notch air passage shielding part 33 of the rear plate 9 are formed by the curved surface 33a. Since the connection is made smoothly, air is uniformly sucked from the entire inner peripheral edge of the notch 32. As a result, it is possible to increase the speed of air that flows into the cutout portion 32 in a concentrated manner, and to generate a strong downdraft. Therefore, even when the groove 20 is deep, an airflow sufficient to wind up the dust accumulated on the groove bottom surface reaches the groove bottom surface, and a high dust removal effect can be obtained.

Embodiment 10 FIG.
28 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 10 of the present invention, and FIG. 29 is a cross-sectional view taken along the line II of FIG. 28 and 29, the same reference numerals are given to the same or corresponding parts as those in the ninth embodiment shown in FIGS. 26 and 27, and the description thereof is omitted.

  The tenth embodiment is different from the ninth embodiment shown in FIGS. 28 and 29 in the lower end of the notched portion 11 of the front plate 31 and the lower end of the notched air passage shielding portion 33 of the rear plate 9. The front brush hairs 34 and the rear brush hairs 35 are implanted, and the other configurations are the same as those in FIG.

  By configuring in this way, the same operational effects as those of the ninth embodiment can be obtained, and the front brush hairs 34 and the rear brush hairs 35 are provided. Therefore, when used on the carpet, the front brush hairs are provided. The scraping effect of the carpet surface by 34 and the back side brush hair 35 can be acquired, and dust absorption performance can be improved.

Embodiment 11 FIG.
FIG. 30 is an enlarged perspective view of the plate of the suction port body of the electric vacuum cleaner according to Embodiment 11 of the present invention, and FIG. 31 is a cross-sectional view taken along line JJ of FIG. In addition, the same code | symbol is attached | subjected to the part same as Embodiment 3 shown in FIG.11 and FIG.12, and description is abbreviate | omitted.

  The suction port body according to the eleventh embodiment is configured by combining the respective characteristic portions of the third embodiment, the sixth embodiment, and the ninth embodiment. That is, it has the following configurations (1) to (3).

(1) It has the notch part 23 which has the curved notch shape curved in the shape of a bow (equivalent to the characteristic part of Embodiment 3).
(2) The notch air passage shielding portion 37 has shielding portion end openings 37a on both sides of the lower end (corresponding to the characteristic portion of the sixth embodiment).
(3) The inner peripheral edge 24 of the cutout portion 23 and the cutout air passage shielding portion 37 of the rear plate 9 are smoothly connected by the curved surface 10a, and the curved surface 10a is as shown in FIG. The vertical cross-sectional shape is configured to gradually decrease in height from the upper end portion toward the lower end portion (corresponding to the characteristic portion of the ninth embodiment). In the eleventh embodiment, the curved surface 10 a is configured by the spacer 10.

  With this configuration, it is possible to obtain substantially the same operational effects as those of the third embodiment, the sixth embodiment, and the ninth embodiment, and the effects of the characteristic portions of the respective embodiments act synergistically. Higher dust absorption effect inside the groove can be expected.

  In addition, although it demonstrated as another embodiment in Embodiment 1-Embodiment 11 mentioned above, respectively, as demonstrated in the said Embodiment 11, the electric cleaning which combined each embodiment suitably It is good also as a machine. As another example of combination, for example, the third embodiment and the fifth embodiment may be combined, and the cutout shape that is rectangular in FIG. 17 may be a curved shape that forms an arcuate shape. Further, in the tenth embodiment, the configuration in which the brush hairs are implanted at the lower ends of the non-notched portion 11 and the notched air passage shielding portion 33 is combined with the third embodiment, and in FIG. You may make it plant a bristle at each lower end of the notch wind path shielding part 12. FIG.

  In each of the above embodiments, the plate-like member 6 is constituted by three members (or two members) of the front plate 8 (31), the rear plate 9 and the spacer (may be omitted) 10 as an example. However, it may be formed as a single member by integrally molding. In this case, the number of parts can be reduced, and it can be configured at low cost. In the manufacturing process, when it is simpler to configure the front plate 8 (31) and the rear plate 9 separately, it is preferable to adopt the configuration of this example.

  Moreover, in each said embodiment, the distance from the front surface of a notch part to the front surface of a notch air path shielding part is set to 3 mm by setting the space | interval of a front side plate and a rear side plate, or the thickness of a front side plate to 3 mm. However, the present invention is not limited to this, and can be set within a range in which sufficient dust absorption performance can be obtained. According to the experiments by the inventors, it has been confirmed that sufficient dust absorption performance can be obtained within the range of 1 mm to 6 mm. In addition, although it is possible to improve a dust absorption performance, so that this space | interval is wide, it is preferable to make 10 mm into a limit from balance with the magnitude | size which can be accept | permitted in the suction inlet body 1. FIG. In short, it is desirable to be within the range of 1 mm to 10 mm.

  Further, in each of the above embodiments, if the front plate 8 (31) and / or the rear plate 9 is made of a flexible material such as rubber or elastomer, the suction port 1 Since the plates 8 (31) and 9 are deformed in accordance with the moving direction when moving the carpet on the carpet, it is possible to reduce the operating force for moving the suction port body 1 in the front-rear direction. Become.

It is a front perspective view of the suction inlet body of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is side surface sectional drawing of the suction inlet of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is an expansion perspective view of the plate which concerns on Embodiment 1 of this invention. It is AA sectional drawing of FIG. It is explanatory drawing which showed the state which mounted the suction inlet of the vacuum cleaner which concerns on Embodiment 1 of this invention on the groove | channel. It is explanatory drawing showing the state of the groove | channel internal airflow which generate | occur | produces with the suction inlet of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is side surface sectional drawing which shows the cross section concerning the notch part 7 in the state which mounted the suction inlet of the vacuum cleaner which concerns on Embodiment 1 of this invention on the groove | channel. It is side surface sectional drawing which shows the cross section concerning the notch part 11 in the state which mounted the suction inlet of the vacuum cleaner which concerns on Embodiment 1 of this invention on the groove | channel. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 2 of this invention. It is BB sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet of the vacuum cleaner which concerns on Embodiment 3 of this invention. It is CC sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 4 of this invention. It is DD sectional drawing of FIG. It is side surface sectional drawing which shows the cross section concerning the notch part 7 in the state which mounted the suction inlet of the vacuum cleaner which concerns on Embodiment 4 of this invention on a groove | channel. It is side surface sectional drawing which shows the cross section concerning the notch part 11 in the state which mounted the suction inlet of the vacuum cleaner which concerns on Embodiment 4 of this invention on the groove | channel. It is an expansion perspective view of the plate of the suction inlet of the vacuum cleaner which concerns on Embodiment 5 of this invention. It is EE sectional drawing of FIG. It is a figure which shows the state which removed the front side plate in FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 6 of this invention. It is a front view of the notch part of the plate 6 which concerns on Embodiment 6 of this invention. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 7 of this invention. It is FF sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 8 of this invention. It is GG sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 9 of this invention. It is HH sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner which concerns on Embodiment 10 of this invention. It is II sectional drawing of FIG. It is an expansion perspective view of the plate of the suction inlet body of the vacuum cleaner concerning Embodiment 11 of the present invention. It is JJ sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction port body, 2 Suction port body main body, 5 Suction port, 6 Plate (plate-shaped member), 7 Notch part, 8 Front plate (front plate member), 9 Rear plate (back plate member), 10a Curved surface 11 Notched portion, 12 Notched air passage shielding portion, 16 Floor surface, 20 Groove, 21 Notched portion, 22 Curved portion, 23 Notched portion, 24 Inner peripheral edge, 25 Notched air passage shielding portion, 27 Blocking Part, 27a Lower end face, 31 Front plate, 32 Notch part, 33 Notch airway shielding part, 34 Front brush hair, 35 Rear brush hair, 37 Notch airway shielding part.

Claims (14)

A suction port body of a vacuum cleaner having a suction port body body connected to the vacuum cleaner body and having a suction port opened at the bottom,
A plate-like member provided with a notch that opens downward is disposed on the front surface of the main body of the suction port, and the plate-like member is located behind the notch and flows from the notch. A suction port body for a vacuum cleaner, wherein a shielding portion is provided for receiving the blown air and blowing it to the floor surface side.   The suction port body of the vacuum cleaner according to claim 1, wherein the notch portion is substantially rectangular and has two upper corners formed in a curved shape.   The suction port body of the electric vacuum cleaner according to claim 1, wherein the notch is formed in a curved shape that is curved in an arcuate shape.   The suction port body of the vacuum cleaner according to any one of claims 1 to 3, wherein a width of a lower end of the shielding portion is equal to or shorter than a width of a lower end of the notch portion.   The electric cleaning according to claim 4, wherein when the width of the lower end of the shielding part is made shorter than the width of the lower end of the notch part, the width is made longer than ½ of the width of the lower end of the notch part. Air inlet of the machine.   The notch is formed such that the vertical cross-sectional shape gradually decreases in height from the upper end to the lower end, and the inner periphery of the notch and the shielding part are smoothly connected by a curved surface. The suction inlet body of the electric vacuum cleaner according to any one of claims 1 to 5, wherein the suction inlet body is configured as described above.   The suction port body of the vacuum cleaner according to any one of claims 1 to 6, wherein a distance from a front surface of the cutout portion to a front surface of the shielding portion is in a range of 1 mm to 10 mm.   The plate-like member has a configuration in which a front plate member and a back plate member are joined with a space therebetween, the cutout portion is formed in the front plate member, and the shielding portion is cut in the back plate member. The suction port body of the vacuum cleaner according to any one of claims 1 to 7, wherein the suction mouth body is configured by a portion facing the notch portion.   The suction port body for an electric vacuum cleaner according to claim 8, wherein a back side cutout portion that opens downward is provided on each of the left and right sides of the shielding portion.   The front plate member includes a closing portion that closes a space behind the non-notched portion located on the left and right of the notch portion, and the lower end surface of the closing portion is lower than the lower end surface of the shielding portion of the back plate member. The suction mouth of the vacuum cleaner according to claim 8 or 9, wherein the suction mouth is formed so as to be positioned above.   The suction mouth of a vacuum cleaner according to any one of claims 1 to 10, wherein a part or all of the plate-like member is made of a flexible material.   The part corresponding to the non-notch part located in the right and left of the notch part and the part corresponding to the shielding part in the plate-like member are respectively constituted by brush bristles. Item 12. The suction port body of the electric vacuum cleaner according to any one of Items 11.   The brush-like hair is planted in each of the lower end of the non-notch part located in the right and left of the notch part and the lower end of the shielding part in the plate-like member. Item 12. The suction port body of the electric vacuum cleaner according to any one of Items 11. The vacuum cleaner provided with the suction inlet of the vacuum cleaner in any one of Claims 1 thru | or 13.

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