JP4530940B2 - Vacuum cleaner attachment - Google Patents

Description

  The present invention relates to a vacuum cleaner attachment that has a suction port and is connected to a hose or extension pipe connected to the main body of the vacuum cleaner, and particularly cleans the upper surface portion of a high position such as an air conditioner or furniture. The present invention relates to a technique suitable for the above.

  Traditionally, vacuum cleaner attachments for cleaning corners on the floor of a room, gaps in furniture, window bars, etc. are generally well known and connect to hoses and extension pipes like floor suction tools. Some are configured to be rotatable in a direction in which the connecting pipe rotates toward the back side of the suction port.

Further, in Patent Document 1 and Patent Document 2, a suction port portion in which a brush is planted on the opening edge of the suction port is connected to a connecting pipe bent in a reverse shape so as to be rotatable about an axis. The connection pipe connected to the hose and the extension pipe is disclosed, and the suction port is rotated around the axis of the connection pipe, so that the upper surface side of the high position can be changed along with the cleaning of the lower position such as the floor surface. It can be cleaned.
Japanese Utility Model Publication No. 56-1553 Japanese Utility Model Publication No. 55-111050

  However, in the case where the connecting pipe is configured to be rotatable in the direction of turning to the back side of the suction port, the suction port is in contact with the upper surface portion of the higher position even if it is intended to clean the upper surface portion of the higher position such as an air conditioner or furniture. However, there is a problem that the upper surface portion at a high position cannot be cleaned.

  Moreover, in what was indicated by the said patent document 1 and the patent document 2, the upper surface of a high position is obtained by removing the connection pipe connected to the hose or the extension pipe and rotating the suction port portion around the axis of the connection pipe. Although it is possible to clean the part, there is a problem that it takes time and effort to attach and detach the connecting pipe.

  Accordingly, the present invention has been made to solve such a problem, and provides an attachment for a vacuum cleaner that can clean the upper surface portion of a high place without troubles such as detachment of a connecting pipe. It is intended.

In order to achieve the above object, a suction port portion having a suction port, a connection pipe connected to a hose or an extension pipe connected to the main body of the vacuum cleaner, and the connection pipe communicated with the suction port portion. When the connecting pipe is rotated to the back side of the suction port, the connecting pipe is connected to the back side of the suction port and the connecting portion is rotatably connected to the direction of the suction port. An air introduction port is formed on the suction port side, and when the connection pipe is turned to the suction port side, an air introduction port is formed on the back side of the suction port. is there.

  Furthermore, a brush is planted on the opening edge of the suction port.

  Further, the suction port portion is characterized in that a force point is also formed on the connecting pipe side with the rotation shaft of the connecting portion as a fulcrum.

  Further, the connecting pipe is formed in a substantially U shape.

  In addition, the suction port is formed in a substantially U shape with the side where the connecting pipe rotates, and a stopper portion that restricts the rotation range of the connecting pipe on the upper surface side and the connecting pipe side of the open part. It is formed.

  Further, the rotation shaft of the connecting portion is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the length of the brush is gradually increased on the side opposite to the side on which the rotation shaft is formed. It is characterized by being configured to be long.

  On the other hand, the rotating shaft of the connecting portion is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the density of the brush is higher on the side where the rotating shaft is formed, and the opposite side is lower. It is characterized by comprising.

  Further, the rotating shaft of the connecting portion is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the strength of the brush is strengthened on the side where the rotating shaft is formed, It is characterized in that the side is weakened.

  Further, the rotation shaft of the connecting portion is formed to be biased to one side of the suction port in which the brush is planted on the opening edge, and the brush is planted on the suction port opening edge on the side on which the rotation shaft is formed. In this case, an opening edge corresponding to the length of the brush is formed.

  Further, the bottom surface of the opening edge corresponding to the length of the brush is subjected to a scratch preventing process.

  Further, the opening edge corresponding to the length of the brush and the opening edge on which the brush is planted are made continuous on an inclined surface.

  On the other hand, the rotation axis of the connecting portion is formed to be biased to one side of the suction port in which a brush is planted on the opening edge, and the rotation direction at the time of cleaning due to the bias of the rotation shaft is defined. An urging means for urging in the opposite direction is provided.

  In addition, an engagement portion that fixes the suction port portion in an extending direction of the connection pipe is provided.

According to the present invention, since the connection pipe is configured to be rotatable in the direction of turning to the back side of the suction port and the direction of turning to the suction port side, the connection pipe can be detached even when cleaning the top surface of a high place such as an air conditioner or furniture. It becomes possible to carry out without trouble.
Also, when the connecting pipe is turned to the back side of the suction port, an air introduction port is formed on the suction port side, and when the connection tube is turned to the suction port side, the air introduction port is formed on the back side of the suction port. Since the air inlet is always located on the side opposite to the user, the concern about wind noise can be reduced. In addition, such an air inlet is provided to reduce the load on the electric blower on the main body side of the cleaner, but even if the air inlet on the side where the connecting pipe is rotated is blocked, the other air inlet is Since it functions, it is possible to prevent a large load from being applied to the electric blower of the cleaner body in any state.

  Furthermore, since the brush is planted on the opening edge of the suction port, not only low places such as the floor, but also dust that is difficult to see and suck on the upper surface of high places such as air conditioners and furniture is efficient. Can be wiped well and inhaled.

  In addition, the suction port portion is formed by forming a force point on the connecting pipe side with the rotation axis of the coupling portion as a fulcrum, so that the cleaning from the vertical surface of the high place such as an air conditioner or furniture to the cleaning of the upper surface is performed. At the time of transition, when the power point on the connecting pipe side of the suction port contacts the corner between the vertical surface and the upper surface, the suction port automatically rotates to an angle along the upper surface from the relationship between the fulcrum and the power point. The transition to cleaning can be done automatically.

  In addition, by forming the connection pipe in a substantially U shape, it is possible to prevent the connection pipe from hitting the corner between the vertical surface and the upper surface when cleaning the upper surface of a high place such as an air conditioner or furniture. Therefore, the suction port portion can be applied to the back of the upper surface. Moreover, it is rotated until the suction port comes into contact with the connecting pipe, and compact folding storage is possible.

  In addition, the suction port is formed in a substantially U shape with the connection tube rotating side open, and the connection tube rotates toward the suction port side (the rotation direction of the suction port toward the connection tube side). When it is going to restrict free, generally, it is considered that a stopper portion is formed on the flow path side of the suction port. However, such a configuration causes problems such as dust clogging and abnormal noise. Therefore, the suction port is formed in a substantially U shape with the connection tube rotating side open, and a stopper portion for restricting the rotation range of the connection tube is formed on the upper surface side and the connection tube side of the opening. Thus, the rotation in the direction in which the connection pipe turns to the suction port side (the direction in which the suction port turns to the connection pipe side) becomes free without causing the above-described problems due to the provision of the stopper portion on the flow path side. Can be regulated.

  In addition, the rotation shaft of the connecting portion is formed to be biased to one side of the suction port in which the brush is implanted in the opening edge, and the length of the brush is gradually increased on the side opposite to the side on which the rotation shaft is formed. With this configuration, it is possible to prevent the side on which the rotation shaft is formed from sinking and the other side from floating when trying to press the suction port portion against the surface to be cleaned.

  On the other hand, the rotation axis of the connecting part is formed by being biased to one side of the suction port in which the brush is planted at the opening edge, and the density of the brush is increased on the side where the rotation axis is formed, and the opposite side is decreased. Also by configuring, it is possible to prevent the side on which the rotating shaft is formed from sinking and the other side from floating when trying to press the suction port portion against the surface to be cleaned.

  In addition, the rotation axis of the connecting portion is formed to be biased to one side of the suction port in which the brush is implanted in the opening edge, and the strength of the brush is strengthened on the side where the rotation axis is formed, and the opposite side is weakened. Even if comprised in this way, when it is going to hold down a suction inlet part to a to-be-cleaned surface, it can prevent that the side in which the rotating shaft was formed sink | sinks, and the other side floats.

  In addition, the rotation shaft of the connecting portion is formed to be biased to one side of the suction port where the brush is planted on the opening edge, and the brush is not planted on the suction port opening edge on the side where the rotation shaft is formed. By forming an opening edge corresponding to the length of the brush, it is possible to prevent the side on which the rotation shaft is formed from sinking and the other side from floating when trying to press the suction port against the surface to be cleaned. Can do.

  Further, the bottom surface of the opening edge corresponding to the length of the brush is subjected to a scratch prevention process, so that the bottom surface of the opening edge corresponding to the length of the brush comes into contact with the surface to be cleaned. It can be prevented from being damaged.

  In addition, by continuing the opening edge corresponding to the length of the brush and the opening edge where the brush is flocked on the inclined surface, at the time of transition from cleaning of the vertical surface of high places such as air conditioners and furniture to cleaning of the upper surface, It is possible to prevent the opening edge corresponding to the length of the brush from being caught at the corner between the vertical surface and the upper surface, and the transition from the cleaning of the vertical surface to the cleaning of the upper surface becomes smooth.

  On the other hand, the rotation axis of the connecting portion is formed by biasing to one side of the suction port in which the brush is planted at the opening edge, and the suction port portion is opposite to the rotation direction at the time of cleaning due to the bias of the rotation shaft. By providing the biasing means for biasing, it is possible to prevent the side on which the rotating shaft is formed from sinking and the other side from floating when trying to press the suction port portion against the surface to be cleaned.

  In addition, by providing an engagement part that fixes the suction port part in the extension direction of the connecting pipe, this vacuum cleaner attachment is attached to a holder formed on the extension pipe etc. and stored along the extension pipe etc. It is possible to prevent the suction port from rotating due to impact or the like.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing the configuration of an embodiment of a vacuum cleaner attachment according to the present invention, in which (a) is a side view, (b) is a side sectional view, (c) is a bottom view, and (d) is a top view. (E) is principal part sectional drawing seen from the upper surface side.

  The vacuum cleaner attachment 1 of the present embodiment is connected to an elongated suction port portion 3 having a suction port 3a in which a brush 2 is planted on an opening edge, and a hose or an extension pipe connected to a vacuum cleaner body (not shown). The connecting pipe 4 and the connecting pipe 4 communicate with the suction port 3 and the connecting pipe 4 turns to the back side of the suction port 3a as shown in FIG. 2 and the suction port 3a side as shown in FIG. And a connecting portion 5 that is rotatably connected in the direction of rotation.

  The connecting pipe 4 is integrally formed with a large diameter part 4a connected to a hose or extension pipe connected to the main body of the vacuum cleaner and a small diameter part 4b connected to the suction port part 3 via a connecting part 5. Has been.

  The suction port 3a that opens to the bottom surface side of the suction port portion 3 is formed in a substantially U-shape that opens the side on which the small-diameter portion 4b of the connection pipe 4 rotates, and this substantially U-shaped opening. A large number of brushes 2 are planted at equal intervals on the edge 3b.

  The connecting portion 5 is provided on the rear side of the suction port portion 3, and as shown in FIG. 1 (e), rotating shafts 5 a that protrude from both ends of the small diameter portion 4 b of the connecting pipe 4 are suction ports. The bearing 5b formed on the side of the portion 3 is fitted and can be rotated.

  Further, the suction port portion 3 has a substantially U-shaped open end at the opening edge 3b of the suction port 3a extended to the rear of the connection portion 5, and the rotation of the connection portion 5 as shown in FIG. A force point is also formed on the connecting pipe 4 side with the shaft 5a as a fulcrum.

  Further, as shown in FIG. 2 (b), when the connecting pipe 4 is rotated to the back side of the suction port 3a, an air introduction port (also referred to as a leakage hole) 6a is formed on the rear side of the suction port 3a. As shown in FIG. 3B, when the connecting pipe 4 is rotated to the suction port 3a side, an air introduction port 6b is formed on the upper surface side of the connecting portion 5 located on the back side of the suction port 3a. It is configured.

  In the above configuration, when the vacuum cleaner attachment 1 is used to clean a corner portion of a floor surface, a vertical surface or an upper surface of an air conditioner or furniture, the large diameter portion of the connection pipe 4 of the attachment 1 4a is connected to a hose or extension pipe connected to the cleaner body. Then, when the electric blower built in the cleaner body is operated, dust on the surface to be cleaned is sucked from the suction port 3a of the suction port portion 3, and dust attached to the surface to be cleaned also has an opening edge 3b of the suction port 3a. The brush 2 is wiped off by the brush 2 and sucked from the suction port 3a, and is sucked from the connecting portion 5 through the connecting pipe 4 to the main body of the cleaner through an extension pipe, a hose and the like.

  The vacuum cleaner attachment 1 of the present embodiment is configured to be rotatable in a direction in which the connecting pipe 4 rotates toward the back side of the suction port 3a as shown in FIG. 2 and a direction in which the connection tube 4 rotates toward the suction port 3a as shown in FIG. Therefore, not only cleaning of low places such as the floor surface in the state of FIG. 2, but also rotating from the state of FIG. It becomes possible to carry out without trouble such as detachment of the tube 4.

  Further, since the brush 2 is planted on the opening edge 3b of the suction port 3a, not only low places such as the floor, but also dust that is difficult to see and suck on the upper surface of high places such as air conditioners and furniture, etc. Can also be wiped off efficiently.

  Moreover, when the connecting pipe 4 is configured to be rotatable in the direction of turning to the suction port 3a side, the angle of the suction port portion 3 must be adjusted by hand when cleaning the upper surface portion of a high position such as an air conditioner or furniture. I must. On the other hand, the suction port portion 3 of the attachment 1 such as a vacuum cleaner of the present embodiment is formed by forming a force point on the connecting tube 4 side with the rotating shaft 5a of the connecting portion 5 as a fulcrum. 4 (a) to (d), when the attachment 1 is connected to the extension pipe 7 and the transition from the cleaning of the vertical surface F1 at a high place such as the furniture F to the cleaning of the upper surface F2 is performed, When the force point on the connecting pipe 4 side of the suction port 3 comes into contact with the corner F3 between the vertical surface F1 and the upper surface F2, the suction port 3a of the suction port 3 automatically follows the upper surface F2 from the relationship between the fulcrum and the force point. Since it rotates to an angle, the transition to cleaning of the upper surface F2 can be performed automatically.

  Also, when using this type of attachment, the suction port is throttled and the load on the electric blower built in the cleaner body increases, so an air inlet (leakage hole) is formed separately from the suction port. The load of the electric blower is reduced. However, when the air inlet is fixed, the air inlet is located on the user side depending on the angle of the suction port 3 that rotates in a wide range as described above, and the wind noise is annoying.

  As a countermeasure, in the attachment 1 of this embodiment, as shown in FIG. 5A, when the connection pipe 4 is rotated to the back side of the suction port 3a by floor cleaning or the like, the rear side of the suction port 3a. When the connection pipe 4 is rotated to the suction port 3a side by cleaning the upper surface at a high place as shown in FIG. 5B, the connecting portion 5 on the back side of the suction port 3a is formed. Since the air inlet 6b is formed on the upper surface side, the air inlet 6a or 6b is always located on the side opposite to the user, so that the wind noise can be reduced. it can. Further, even if the air inlet 6a or 6b on the side where the connecting pipe 4 is rotated is closed, the other air inlet 6b or 6a functions, so that the electric blower of the cleaner body is large in any state. A load can be prevented.

  FIG. 6 is a side view showing another embodiment of the attachment for a vacuum cleaner according to the present invention. The same reference numerals as those in the previous embodiment denote the same or corresponding parts.

  As described above, the connecting pipe 4 has a large diameter part 4a connected to a hose or extension pipe connected to the main body of the vacuum cleaner, and a small diameter part 4b connected to the suction port part 3 via the connecting part 5. When the small-diameter portion 4b protrudes from the central portion of the large-diameter portion 4a as in the above embodiment, the upper surface F2 portion of a high place such as furniture F is cleaned as shown in FIG. At this time, depending on the angle, the large-diameter portion 4a and the extension tube 7 of the connecting tube 4 first come into contact with the vertical surface F1, and the cleaning of the upper surface F2 portion becomes insufficient.

  As a countermeasure, in this embodiment, as shown in FIG. 6, the connection pipe 4 is composed of a large diameter portion 4a and a small diameter portion 4b as in the above embodiment, but the large diameter portion 4a is provided with a small diameter portion 4b. The suction port 3 is formed eccentric to the suction port 3a side. Here, it is decentered until the bottom of the small diameter portion 4b in FIG. 6 coincides with the bottom of the large diameter portion 4a.

  With this configuration, when cleaning the upper surface of a high place such as an air conditioner or furniture, as shown in FIG. 7B, the large-diameter portion 4a and the extension pipe 7 of the connecting pipe 4 hit the vertical plane F1. Since it becomes difficult, as shown in FIG. 7A, it is possible to alleviate the problem that the large diameter portion 4a and the extension tube 7 of the connecting tube 4 first hit the vertical surface F1 and the cleaning on the upper surface F2 side becomes insufficient.

  FIG. 8 is a side view showing still another embodiment of the vacuum cleaner attachment according to the present invention, and the same reference numerals as those of the above-described embodiments indicate the same or corresponding parts.

  In the present embodiment, the small-diameter portion 4b in the connection pipe 4 of the embodiment shown in FIG. 7 is formed in a substantially square shape.

  With this configuration, when cleaning the upper surface of a high place such as an air conditioner or furniture, as shown in FIG. 9, the connecting pipe 4 is connected to the corner F3 between the vertical surface F1 and the upper surface F2 of the furniture F or the like. Since it can prevent that the small diameter part 4b hits, the suction inlet part 3 can be applied to the back of the upper surface F2. In this embodiment, since the small diameter part 4b is eccentrically formed in the large diameter part 4a similarly to the said embodiment, it is further effective. Further, as shown in FIG. 10, the suction port portion 3 is rotated until the suction port 3a comes into contact with the connection pipe 4, so that compact folding storage is possible.

  FIG. 11 is a side view showing the configuration and operation of still another embodiment of the vacuum cleaner attachment according to the present invention, FIG. 12 is a top view, and the same reference numerals as those of the above-described embodiments indicate the same or corresponding parts. Yes.

  As described above, when the suction port 3a is formed in a substantially U-shape that opens the side on which the connection tube 4 rotates, the direction in which the connection tube 4 rotates toward the suction port 3a (the suction port 3a is closer to the connection tube 4 side). Rotation in the direction of rotation) becomes free, and the usability during cleaning becomes worse. In order to regulate this, it is generally considered that a stopper portion is formed on the flow path side of the suction port. However, such a configuration causes problems such as dust clogging and abnormal noise.

  As a countermeasure, in the present embodiment, a stopper portion 8 that restricts the rotation range of the connection tube 4 is formed on the upper surface side of the opening portion of the substantially U-shaped suction port 3a and the connection tube 4 side. . Specifically, a semicircular concave portion 8a is formed on the upper surface side of the open portion formed on the rear side of the suction port 3a, and the concave portion 8a is formed on the upper surface side of the small diameter portion 4b of the connection pipe 4 correspondingly. The cylindrical convex part 8b which fits in is formed.

  By configuring in this way, the above-described problem due to the provision of the stopper portion on the flow path side does not occur, and the direction in which the connecting pipe 4 rotates toward the suction port 3a (suction port) as shown in FIG. It is possible to restrict the rotation in the direction in which 3a rotates toward the connecting tube 4), thereby improving usability during cleaning.

  FIG. 13: is a side view which shows other embodiment of the attachment for cleaners by this invention, and the same code | symbol as embodiment mentioned above has shown the same or equivalent part.

  As described above, when the rotation shaft 5a of the connecting portion 5 is formed to be biased to the rear side of the suction port 3a in which the brush 2 is implanted in the opening edge 3b, as shown in FIG. When cleaning the upper surface F2 of the furniture F and the like, if the suction port 3 is pressed against the surface to be cleaned (upper surface F2), the rear side on which the rotating shaft 5a is formed sinks and the front side floats. Suction performance will be reduced.

  As a countermeasure, in the present embodiment, as shown in FIG. 13, the brush 2 has a structure in which the length of the brush 2 gradually increases from the rear side to the front side where the rotation shaft 5a is formed. It is.

  By configuring in this way, as shown in FIG. 14B, it is possible to prevent the front side from floating when trying to press the suction port portion 3 against the surface to be cleaned (upper surface F2).

  FIG. 15 is a side view showing another embodiment for solving the problem due to the deviation of the rotating shaft described above, and the same reference numerals as those in the previous embodiment denote the same or corresponding parts.

  In the present embodiment, the density of the brush 2 is increased on the rear side where the rotary shaft 5a is formed, specifically on the lower side and the rear side of the rotary shaft 5a, and lower on the front side than the rotary shaft 5a. It is composed.

  Also by configuring as described above, it is possible to prevent the rear side where the rotation shaft 5a is formed from sinking and the front side from floating when trying to press the suction port portion 3 against the surface to be cleaned.

  Further, in FIG. 15, the suction force is also reduced in the same manner as described above by configuring the brush 2 so that the strength of the lower side and the rear side of the rotating shaft 5a is stronger and the front side is weaker than the rotating shaft 5a. It is possible to prevent the rear side where the rotary shaft 5a is formed from sinking and the front side from floating when trying to press the mouth 3 against the surface to be cleaned.

  FIG. 16 is a side view showing still another embodiment for solving the problem due to the deviation of the rotating shaft 5a, and the same reference numerals as those in the previous embodiment denote the same or corresponding parts.

  In the present embodiment, the length of the brush 2 is obtained by forming the resin portion of the opening edge 3b thickly without planting the brush 2 on the suction opening opening edge on the rear side where the rotation shaft 5a is formed. An opening edge 3c corresponding to is formed.

  Further, the bottom surface of the rear opening edge 3c corresponding to the length of the brush 2 is subjected to a scratch preventing process. Specifically, the scratch preventing treatment part 3d is formed by an etiquette brush, short flocking or a vinyl chloride insert.

  Further, the rear opening edge 3c corresponding to the length of the brush 2 and the opening edge 3b on which the brush 2 is planted are connected by an inclined surface 3e that is gently curved.

  Even when configured as described above, the rear opening edge 3c abuts against the surface to be cleaned when the suction port 3 is pressed against the surface to be cleaned, so that the rear side on which the rotating shaft 5a is formed is It is possible to prevent sinking and floating of the front side.

  Further, since the scratch preventing treatment portion 3d is formed on the bottom surface of the rear opening edge 3c corresponding to the length of the brush 2, the rear opening edge 3c comes into contact with the surface to be cleaned. The surface can be prevented from being damaged.

  In addition, the rear opening edge 3c corresponding to the length of the brush 2 and the opening edge 3b on which the brush 2 is flocked are made continuous by the inclined surface 3e, thereby cleaning the vertical surface of a high place such as an air conditioner or furniture. It is possible to prevent the rear opening edge 3c corresponding to the length of the brush 2 from being caught at the corner portion between the vertical surface and the upper surface during the transition to the upper surface cleaning, and from the vertical surface cleaning to the upper surface cleaning. Smooth transition.

  FIG. 17 is a side view showing still another embodiment for solving the problem due to the deviation of the rotation shaft 5a and a cross-sectional view of the main part seen from the upper surface side. The same reference numerals as those in the above embodiment are the same or corresponding parts. Is shown.

  In the present embodiment, one end is a small-diameter portion of the connecting tube 4 as an urging means for urging the suction port portion 3 in a direction opposite to a rotation direction (direction in which the front side floats) at the time of cleaning due to the bias of the rotation shaft 5a. The coil spring 9 is fixed to the 4b side and wound around the rotating shaft 5a, and the other end is fixed to the suction port 3 side, and the front side of the suction port 3 is pressed by the spring 9. . Moreover, the stopper part 8 which consists of the recessed part 8a and the convex part 8b similar to embodiment shown in the said FIG. 11, FIG. 12 is formed.

  Also with this configuration, it is possible to prevent the rear side where the rotation shaft 5a is formed from sinking and the front side from floating when trying to press the suction port portion 3 against the surface to be cleaned.

  With the above-described configuration, the suction port 3 rotates downward in the normal state during non-cleaning as shown in FIG. 18, but the stopper 8 is formed in this embodiment. Therefore, the rotation can be restricted at the position shown in FIG. 18 without rotating to the connecting tube 4 side, and the usability is improved.

  FIG. 19 is a side sectional view showing still another embodiment of the vacuum cleaner attachment according to the present invention. The same reference numerals as those of the above-described embodiments denote the same or corresponding parts.

  In this embodiment, the engaging part 10 which fixes the suction inlet part 3 to the extension direction of the connection pipe 4 so that engagement / disengagement is possible is provided. Specifically, a convex portion 10a that protrudes outward in a circular arc shape is formed at the distal end of the connecting pipe small diameter portion 4b in the connecting portion 5, and the suction port portion 3 is straight on the suction port portion 3 side as shown in FIG. In this state, a concave portion 10b is formed in which the convex portion 10a having an arc-shaped cross section is elastically engaged. When the convex portion 10a and the concave portion 10b are engaged, a click feeling is obtained and the state is fixed to that state.

  With the configuration as described above, when the vacuum cleaner attachment 1 is mounted on the holder 7a formed on the extension pipe 7 as shown in FIG. As shown in FIG. 20 (b), it is possible to prevent the suction port 3 from rotating due to an impact or the like, and the suction port 3a side of the suction port 3 is connected to the extension pipe 7 as shown in FIG. 20 (a). It can be stored in a state along the line.

  In the above-described embodiment, the case in which the present invention is applied to the brush 2 that is planted on the opening edge 3b of the suction port 3a has been described. However, the brush 2 is planted for an invention that is not related to the brush. Even if it is applied to the one not provided, the same effect can be obtained.

It is a figure which shows the structure of one Embodiment of the attachment for cleaners by this invention, (a) is a side view, (b) is a sectional side view, (c) is a bottom view, (d) is a top view, (e) FIG. 3 is a cross-sectional view of a main part viewed from the upper surface side. It is a figure which shows the normal effect | action of the said embodiment, (a) is a side view, (b) is a sectional side view. It is a figure which shows the effect | action which concerns on this invention of the said embodiment, (a) is a side view, (b) is side sectional drawing. It is a figure which shows the other effect | action of the said embodiment, (a)-(d) has shown the change of the state of the suction inlet part at the time of transfer from cleaning of the vertical surface of furniture etc. to the cleaning of the upper surface. . It is a figure which shows the further another effect | action of the said embodiment, (a) is at the time of floor cleaning, (b) has shown at the time of the upper surface cleaning of a high place. The side view which shows other embodiment of the attachment for vacuum cleaners by this invention. FIG. 7 is a diagram comparing the operation of the embodiment shown in FIGS. 1 to 5 and the embodiment shown in FIG. 6, wherein (a) projects a small-diameter portion from a central portion of a large-diameter portion of a connecting pipe. In the case of the embodiment shown in FIG. 1 to FIG. 5, (b) is the case of the embodiment shown in FIG. 6 formed by decentering the small diameter portion in the large diameter portion toward the suction port side of the suction port portion. . The side view which shows other embodiment of the attachment for vacuum cleaners by this invention. In the figure which shows the effect | action of the said embodiment, (a)-(d) shows the change of the state of a suction inlet part and a connecting pipe at the time of the transition from the cleaning of the vertical surface of furniture etc. to the cleaning of the upper surface. Yes. The side view which shows the time of compact accommodation of the attachment of the said embodiment. The side view which shows the structure and effect | action of further another embodiment of the attachment for cleaners by this invention, (a) is a side view which shows a structure, (b) is a side view which shows an effect | action. The top view of the said embodiment. The side view which shows other embodiment of the attachment for vacuum cleaners by this invention. It is a figure which shows the effect | action when there is no gradient in a brush and there exists a gradient like the said embodiment, (a) shows the case where there is no gradient and (b) shows the case where there is a gradient. The side view which shows other embodiment for solving the subject by the deviation of a rotating shaft. The side view which shows other embodiment for solving the subject by the deviation of a rotating shaft. It is a figure which shows other embodiment for solving the subject by the bias | inclination of a rotating shaft, (a) is a side view, (b) is principal part sectional drawing seen from the upper surface side. The side view which shows the effect | action of the normal state of the said embodiment. Side sectional drawing which shows other embodiment of the attachment for vacuum cleaners by this invention. It is a figure which shows the effect | action when there is no engaging part like the said embodiment and said embodiment, (a) is the case of the said embodiment, (b) is the case where there is no engaging part like the said embodiment. Show.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Attachment for vacuum cleaner 2 Brush 3 Suction port part 3a Suction port 3b Opening edge 3c Rear opening edge equivalent to brush length 3d Scratch prevention processing part 3e Inclined surface 4 Connection pipe 4a Large diameter part 4b Small diameter part 5 Connecting part 5a Rotating shaft 5b Bearing 6a, 6b Air inlet 7 Extension pipe 7a Holder 8 Stopper part 8a Recessed part 8b Convex part 9 Coil spring 10 Engaging part 10a Convex part 10b Concave part F Furniture F1 Vertical face F2 Top face F3 Corner part

Claims (13)

A suction port portion having a suction port, a connecting pipe connected to a hose or extension pipe connected to the main body of the vacuum cleaner, and connecting the connecting pipe to the suction port portion, and the connecting pipe on the back side of the suction port A connecting portion that is rotatably connected to the direction of rotation and the direction of rotation to the suction port side ;
When the connection pipe is rotated to the back side of the suction port, an air introduction port is formed on the suction port side, and when the connection pipe is rotated to the suction port side, air is supplied to the back side of the suction port. An attachment for a vacuum cleaner, characterized in that an inlet is formed .   The vacuum cleaner attachment according to claim 1, wherein a brush is planted on the opening edge of the suction port.   The vacuum cleaner attachment according to claim 1 or 2, wherein the suction port portion is formed with a force point on the side of the connecting pipe with a pivot shaft of the coupling portion as a fulcrum. The vacuum cleaner attachment according to any one of claims 1 to 3 , wherein the connection pipe is formed in a substantially U shape. The suction port is formed in a substantially U-shape that opens the side on which the connection tube rotates, and a stopper portion that restricts the rotation range of the connection tube is formed on the upper surface side and the connection tube side of the open portion. The vacuum cleaner attachment according to any one of claims 1 to 4 , wherein the vacuum cleaner attachment is provided. The rotating shaft of the connecting portion is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the length of the brush is gradually increased on the side opposite to the side on which the rotating shaft is formed. The vacuum cleaner attachment according to any one of claims 1 to 5 , wherein the vacuum cleaner attachment is configured as described above. The rotation axis of the connecting part is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the density of the brush is increased on the side where the rotation axis is formed, and the opposite side is decreased. The vacuum cleaner attachment according to any one of claims 1 to 5 , wherein the vacuum cleaner attachment is configured as described above. The rotating shaft of the connecting portion is formed by biasing to one side of the suction port in which the brush is planted on the opening edge, and the strength of the brush is stronger on the side where the rotating shaft is formed and weaker on the opposite side The vacuum cleaner attachment according to any one of claims 1 to 5 , wherein the vacuum cleaner attachment is configured as described above. The rotation axis of the connecting portion is formed by being biased to one side of the suction port in which the brush is planted on the opening edge, and the brush is not planted on the suction port opening edge on the side on which the rotation shaft is formed. The vacuum cleaner attachment according to any one of claims 1 to 5 , wherein an opening edge corresponding to the length of the brush is formed. The vacuum cleaner attachment according to claim 9, wherein the bottom surface of the opening edge corresponding to the length of the brush is subjected to a scratch prevention treatment. The attachment for a vacuum cleaner according to claim 9 or 10, wherein an opening edge corresponding to the length of the brush and an opening edge where the brush is flocked are made continuous on an inclined surface. The rotation axis of the connecting portion is formed by biasing to one side of the suction port in which a brush is planted at the opening edge, and the suction port portion is in a direction opposite to the rotation direction at the time of cleaning due to the bias of the rotation shaft An attachment for a vacuum cleaner according to any one of claims 1 to 5 , further comprising an urging means for urging the hood. The vacuum cleaner attachment according to any one of claims 1 to 12 , further comprising an engaging portion that fixes the suction port portion in an extending direction of the connection pipe.

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