JP2018011676A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner from which a brush component attachable to/detachable from an operation pipe and an extension pipe can be easily detached, and which includes a suction nozzle that is hardly damaged.SOLUTION: A vacuum cleaner includes a cleaner body 2, a hose body 3 extending from the cleaner body 2, an operation pipe 4 provided at the tip of the hose body 3, an extension pipe 5 connected to the operation pipe 4, and a suction nozzle 7 attachable to/detachable from at least one of the operation pipe 4 and the extension pipe 5. The suction nozzle 7 includes a brush base 8 attached across at least one of the operation pipe 4 and the extension pipe 5, and a brush member 9 having a brush member, which is rotatably attached to the brush base 8. The brush base includes a flange that covers at least part of the brush member 9.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vacuum cleaner having brush parts that can be attached to and detached from at least one of an operation tube and an extension tube.

  Conventionally, a vacuum cleaner provided with a plurality of mouthpieces is known. Among the plurality of mouthpieces, the first mouthpiece is formed so as to exhibit a substantially T-shape. The first suction body is attached to the tip of a hose body extending from the cleaner body that sucks and collects dust through at least one of an operation tube and an extension tube. The second suction body is generally disposed at the distal end of the operation tube or the extension tube, and has a brush member or an elongated suction port distal end.

  At this time, the first suction body is mainly specialized for cleaning the floor surface, whereas the second suction body is the first suction mouth such as a corner of the room, a gap in the front, a table or a shelf. It has a shape that specializes in cleaning places that are difficult to clean.

  In general, when cleaning using a vacuum cleaner, the first suction body is often used, and while the first suction body is being used, the second suction body is It is stored in a different place from the vacuum cleaner, or is attached to an attachment provided on the vacuum cleaner or its accessories. However, if the second mouthpiece is stored in another place, it may be lost if it is not used for a long time, so it may have a structure that can be stored in a vacuum cleaner or its accessories. desirable.

  Moreover, as a form at the time of use of a 2nd suction body, the method of connecting using the hook-shaped engaging part for connecting an extension pipe or a 1st suction body to the front-end | tip of an operation pipe or an extension pipe, Without using the connection method, it is pivotally attached to the tip of the operation tube or extension tube, the second suction body is rotated in the direction of use when in use, and in the storage direction when not in use. A method of rotating is known.

  Patent Document 1 describes a method of fixing a second suction body having a brush member to the tip of an operation tube or an extension tube. According to this, the suction body having the brush member can be detachably disposed at the tip of at least one of the operation tube and the extension tube. The suction body is composed of a brush base that is locked to the tip of the operation tube and the extension tube, and a brush member that is rotatable with respect to the brush base and has a brush member, and elastically deforms the brush base. It is configured to be attached to the operation tube or extension tube.

  Furthermore, Patent Document 1 describes a method of positioning a mouthpiece by providing a plurality of concave portions, convex portions, or ribs on an operation tube or an extension tube.

JP 2005-185480 A

  However, in patent document 1, the shape for removing a suction body is not provided, but when a user removes, it has a location where force is easy to apply and removes. When the brush member protrudes with respect to the brush base as in Patent Document 1, the brush member that is easy to apply force is removed. At this time, a shearing direction stress is applied to the shaft portion provided to enable the brush member to rotate, and there is a risk that only the brush member may come off due to breakage of the shaft portion or elastic deformation at the time of removal. There will be inconvenience to the user.

  In Patent Document 1, the second suction body can be attached to the tip of the operation tube or extension tube by elastically deforming the brush base. At this time, the brush base is reinforced with ribs or the like so as to increase the rigidity. It is necessary to make it a shape that is made of or a material having high rigidity so that it is not easily detached when the second suction body is used. At this time, if the brush base is reinforced with ribs or the like, it must be enlarged so that the brush members do not interfere with each other. As a result, the mouthpiece itself becomes large, which is not desirable. On the other hand, in general, a material with high rigidity has low toughness, and it is not an optimal material for a brush member that requires toughness for press-fitting when brushing a brush member. May occur.

  Furthermore, in the method of fixing the brush base described in Patent Document 1, in a state where the brush base is not attached to the operation tube or the extension tube, the irregularities and ribs are conspicuous in the appearance of the operation tube and the extension tube, Not desirable.

  The present invention solves the above-mentioned problems, facilitates attachment / detachment with the operation tube or the extension tube, avoids the possibility of damage due to unintended handling, and does not require the second mouthpiece to be attached. It is to provide a vacuum cleaner that does not affect the appearance.

  In order to solve such a problem, the present invention provides a cleaner body, a hose body extending from the cleaner body, an operation tube provided at a tip of the hose body, an extension tube connected to the operation tube, A suction mouth that is attachable to and detachable from at least one of the operation tube and the extension tube, and the suction body includes a brush base that is attached to sandwich at least one of the operation tube and the extension tube, and a brush member. It is comprised with the brush member attached to the said brush stand so that rotation is possible, The said brush stand has the flange which covers at least one part of the said brush member, It is characterized by the above-mentioned.

  The brush base and the brush member are made of different materials.

  Further, when the suction body is attached to the operation tube and the extension tube, an end surface of the brush base and an end surface of the operation tube and the extension tube are substantially flush with each other.

ADVANTAGE OF THE INVENTION According to this invention, a vacuum cleaner which has a suction body which can remove a suction body easily and cannot be damaged easily can be provided.
In addition, by using different materials, it is possible to provide a vacuum cleaner that facilitates the use of the suction body by reliably and stably performing the rotation operation, attachment, and fixing of the suction body. .
Moreover, the vacuum cleaner which provided the mark at the time of attaching a suction body can be provided, without providing a complicated shape in the external appearance of an operation tube or an extension tube.

It is a perspective view of the vacuum cleaner concerning this embodiment. It is a perspective view at the time of attaching the 2nd suction mouth body to an operation pipe. It is sectional drawing when attaching a 2nd suction body to an operating pipe and not using a 2nd suction body. It is sectional drawing when attaching a 2nd suction body to an operating pipe and using a 2nd suction body. It is a 2nd mouthpiece which comprises the vacuum cleaner which concerns on this embodiment, and is a perspective view when not using a 2nd mouthpiece. It is a 2nd mouthpiece which comprises the vacuum cleaner which concerns on this embodiment, and is a perspective view of a brush stand. It is a perspective view of a brush member by the 2nd mouthpiece which constitutes the vacuum cleaner concerning this embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, with respect to the front and rear directions, the upstream side of the air sucked by the cleaner body is a front side and the downstream side is a rear side with respect to the cleaner body. Moreover, the vertical and horizontal directions in the second suction body constituting the vacuum cleaner of the present invention are based on the vertical and horizontal directions shown in FIG. FIG. 1 is a perspective view of the electric vacuum cleaner according to the present embodiment. FIG. 2 is a perspective view when the second suction body is attached to the operation tube. FIG. 3 is a cross-sectional view when the second suction body is attached to the operation pipe and the second suction body is not used. FIG. 4 is a cross-sectional view when the second suction body is attached to the operation tube and the second suction body is used. FIG. 5 is a perspective view of the second suction body constituting the vacuum cleaner according to the present embodiment when the second suction body is not used. FIG. 6 is a perspective view of the brush base as a second suction body constituting the vacuum cleaner according to the present embodiment. FIG. 7 is a perspective view of a brush member as a second suction body constituting the vacuum cleaner according to the present embodiment.

  As shown in FIG. 1, the vacuum cleaner 1 of the present embodiment includes a cleaner body 2, a hose body 3, an operation tube 4, an extension tube 5, a first mouthpiece 6, and a second mouthpiece. A body 7 is provided.

The vacuum cleaner main body 2 includes an electric blower that generates a suction force (not shown), a dust collecting device that stores dust (dust) collected by the suction force of the electric blower, and the like. The vacuum cleaner 1 is not limited to the cyclone type described in FIG. 1 of the present embodiment, and may be a paper pack type.

  The rear end of the hose body 3 is connected to the cleaner body 2 so as to communicate with the dust collector of the cleaner body 2, and the operation tube 4 is attached to the front end of the hose body 3.

The operation tube 4 is a tube body provided with a handle grip 4a held by an operator and a hand switch SW. The hand switch SW is configured to be able to perform operations such as on / off of the electric blower described above, switching of the output of the electric blower, and on / off of a cleaning rotor (not shown) built in the first suction body 6.

The extension pipe 5 includes a pipe body 5a disposed on the rear side and a pipe body 5b disposed on the front side. The inner diameter of the tube body 5a is set to be larger than the outer diameter of the tube body 5b, and the extension tube 5b is adjusted by adjusting the length of the tube body 5b fitted into the tube body 5a. Is telescopic to a desired length. In addition, the code | symbol 5c of FIG. 1 is the stopper 5c which prescribes | regulates the insertion length (expansion / contraction amount of the extension pipe | tube 5) of the pipe body 5b with respect to the pipe body 5a. The extension tube 5 is not limited to a telescopic tube body as in this embodiment, and may be a tube body that does not expand and contract.

The first suction body 6 has a substantially T-shape and is connected to the front end of the extension pipe 5. The first suction body 6 is attached to the operation tube 4 via the extension tube 5 so that the floor surface can be easily cleaned while the operator is standing, and has a substantially T-shape. The floor can be cleaned widely.

  The second suction body 7 has a substantially U shape when viewed from the front-rear direction, and is attached to the distal end of the operation tube 4 or the extension tube 5. The second suction body 7 has a shape that does not affect the connection when the extension pipe 5 is connected to the operation pipe 4 or the first suction mouth is connected to the extension pipe 5.

  In this electric vacuum cleaner 1, an engagement mechanism having hook-shaped engagement portions 4 b (see FIG. 3) between the first suction body 6 and the extension tube 5 and between the extension tube 5 and the operation tube 4. The engagement and disengagement can be performed freely by pressing the button 4c so that the engagement can be released and removed. Further, when the first suction body 6, the extension pipe 5, and the operation pipe 4 are fitted together as in the original, they are engaged with each other by the engagement mechanism described above.

Next, the second mouthpiece 7 will be described.
The second suction body 7 includes a brush base 8 that is attached to at least one of the operation tube 4 and the extension tube 5, and a brush member 9 that holds the brush member 10. The brush base 8 can be attached to and detached from the operation tube 4 and the extension tube 5. The brush member 9 is rotatably attached to the brush base 8. The extension tube 5 is connected to the operation tube 4 by rotating the brush member 10 to an angle (hereinafter referred to as a first angle) in which the brush member 10 is substantially rearward with the second suction body 7 attached to the operation tube 4. be able to. When the second suction body 7 is used with the second suction body 7 and the extension pipe 5 connected to the operation pipe 4, the extension pipe 5 is removed from the operation pipe 4, and the brush member 10 is moved substantially forward. It is used by rotating it to an angle (hereinafter referred to as a second angle). Even when the second suction body 7 is attached to the extension pipe 5, the same operation is performed when the second suction body 7 is used. The state in which the second suction body 7 is attached to the operation tube 4 or the extension tube 5 and rotated to the first angle is the storage state of the second suction body 7 (the storage state of the brush member 9). A state where the second suction body 7 is attached to the operation tube 4 or the extension tube 5 and rotated to the second angle is a use state of the second suction body 7 (use state of the brush member 9). However, in order to use the second suction body 7, the extension pipe 5 and the first suction body 6 are attached to the tip of the operation pipe 4 or the extension pipe 5 to which the second suction body 7 is attached. It is not necessary. When the extension pipe 5 or the first suction body 6 is attached to the tip of the operation pipe 4 or the extension pipe 5, a flange 20 or the like which will be described later is used when rotating from the first angle to the second angle. This is because they are in contact and cannot be rotated to the second angle. The brush member 9 to be rotated may be plural. Moreover, the rotation angle should just have a 1st angle and a 2nd angle at least.

  The second mouthpiece 7 is substantially U-shaped when viewed from the front-rear direction while being rotated to the first angle. Further, when viewed from the front and rear, the brush base 8 and the brush member 9 are substantially U-shaped members. In the present embodiment, the second suction body 7 is attached so as to sandwich the operation tube 4 or the extension tube 5 from below the operation tube 4 or the extension tube 5. The opening 11 of the brush base 8 is narrower than the maximum dimension in the width direction of the operation tube 4 or the extension tube 5 (substantially circular), and the opening 11 of the brush table 8 is pressed against the operation tube 4 or the extension tube 5. The brush base 8 is elastically deformed along the outer peripheral shape of the operation tube 4 or the extension tube 5 and is attached by the opening 11 being widened.

  The second suction body 7 is used by rotating the brush member 9 to the second angle. When the second suction body 7 is attached to the operation tube 4, dust on the surface to be cleaned is swept by the brush member 10 provided on the brush member 9, and these dust passes through the flow path covered with the brush member 9. The dust is collected in the dust collector of the cleaner body 2 through the operation tube 4 and the hose body 3. When attached to the extension tube 5, the dust is collected in the dust collector of the cleaner body 2 through the extension tube 5, the operation tube 4, and the hose body 3 in the same manner as when attached to the operation tube 4.

Next, the brush base 8 will be described.
The brush base 8 is substantially U-shaped when viewed from the front-rear direction, but the opening 11 is slightly recessed. Thereby, it becomes a shape which pinches | interposes the operation pipe | tube 4 or the extension pipe | tube 5, and it does not remove | deviate easily at the time of use about the up-down and left-right direction.

  Since the brush base 8 has a shape that sandwiches the operation tube 4 or the extension tube 5 as described above, it is desirable that the brush base 8 has high rigidity in order to sandwich it. As a means for increasing the rigidity, a method of forming a rib or the like in the circumferential direction of the brush base 8, a method of forming the brush base 8 from a highly rigid material, or the like can be considered. However, when a rib or the like is formed, the brush member 9 must be prevented from interfering, and the brush member 9 becomes large. From the viewpoint of handling and design, it is desirable that the second suction body 7 is not too large, and therefore it is desirable to use a material having high rigidity.

  A bearing 12 for rotating the brush member 9 is formed on the brush base 8 symmetrically, and this bearing 12 and a shaft 13 of the brush member 9 described later are engaged. Locking grooves 14 a and 14 b are formed around the bearing 12. A locking projection 15 of the brush member 9 described later is locked in the locking grooves 14a and 14b, whereby the brush member 9 can be locked at the first angle and the second angle. The locking grooves 14a and 14b do not need to be symmetrical, and the positions of the locking grooves 14a and 14b and the locking projection 15 can be changed so that the brush member 9 is locked at a predetermined angle. . In this embodiment, the locking grooves 14a and 14b penetrate from the outer peripheral side to the inner peripheral side of the brush base 8. However, the locking grooves 14a and 14b do not need to penetrate as long as the locking projections 15 can be locked.

  A flange 16 is formed on the brush base 8. As described above, this is used when the second suction body 7 is removed from the operation tube 4 or the extension tube 5. The flange 16 has a height and a width that substantially cover the upper portion of the brush member 9 in a state where the brush member 9 is rotated so that the brush member 10 faces substantially rearward. Thereby, when removing the 2nd suction body 7, the flange 16 can be used, and by making it difficult to apply force to the brush member 9, the brush member 9 deform | transforms or the brush member 9 remove | deviates from the brush base 8. This makes it possible to easily remove the second mouthpiece 7. Here, the flange 16 is integrated with the brush base 8, but may be fixed to the brush base 8 as a separate part. Further, the flange 16 may have a shape that makes it difficult to apply force to the brush member 9, such as covering at least a part of the brush member 9.

  The bearing 12 and the locking grooves 14 a and 14 b are formed on the flat surface portion 17 that is a surface different from the substantially U shape of the brush base 8. The flat portion 17 is not perpendicular to the left-right direction when the second suction body 7 is not attached to the operation tube 4 or the extension tube 5, and the second suction body 7 is connected to the operation tube 4 or the extension tube 5. A flat portion 17 having an angle that is perpendicular to the left-right direction when attached is formed. As a result, the relative left and right positions of the locking grooves 14a and 14b with respect to the locking protrusion 15 become equal, so that the brush member 9 is rotated to the first angle and to the second angle. When this is done, an equivalent locking force can be provided.

  A penetrating hole 18 is formed in the brush base 8. The hole 18 is engaged with the protrusion 22 provided in the operation tube 4 or the extension tube 5 when the second suction body 7 is attached. Thereby, the 2nd mouthpiece 7 can be prevented from moving to the front-back direction and the circumferential direction at the time of use. The hole 18 may not be penetrated and may have a concave shape, a convex shape may be formed in the base portion, and a concave shape may be formed in the attachment portion of the operation tube 4 or the extension tube 5.

  A rib 19 extending in the left-right direction may be formed below the brush base 8. As a result, when the second suction body 7 is used, the lower part of the brush member 9 (substantially U-shaped opening of the brush member 9) is blocked, and the static pressure is increased by restricting the channel area. Dust performance can be improved.

  As shown in FIG. 3, when the brush base 8 is attached to the tip of the operation tube 4 or the extension tube 5, the tip of the operation tube 4 or the extension tube 5 and the tip of the brush base 8 are substantially flush with each other. Thereby, at the time of attachment, the user can attach the operation tube 4 or the extension tube 5 so that the tip of the operation tube 4 or the extension tube 5 is substantially flush with the tip of the brush base 8.

Next, the brush member 9 will be described.
As described above, the brush member 9 is substantially U-shaped, includes the brush member 10, and includes a shaft 13 and a locking protrusion 15. The brush member 9 engages the shaft 13 with the bearing 12 of the brush base 8 and is rotatable with respect to the brush base 8.

  The brush member 9 is formed of a material having high toughness without being too high in rigidity, and the brush member 10 is implanted in the flocked hole 21 provided in the brush member 9. Here, the brush member 10 presses and fixes a metal piece or the like. At this time, when the material forming the brush member 9 is not too high in rigidity and has high toughness, whitening or Cracks are less likely to occur.

  Note that the tip angle of the brush member 10 is preferably substantially parallel to the handle grip 4a when the second suction body 7 is used. Thereby, even if the tip angle of the brush member 10 cannot be visually recognized at the time of use, the brush member 10 contacts the surface to be cleaned without being biased by making the handle grip 4a parallel to the surface to be cleaned. It is possible to avoid a place other than the member 10 from hitting the surface to be cleaned and scratching it.

  A shaft 13 is formed on the brush member 9. The shaft 13 is engaged with the bearing 12 formed on the brush base 8 as described above, and rotates the brush member 9. At this time, a bearing may be formed on the brush member 9 and a shaft portion may be formed on the brush base 8.

  The brush member 9 is formed with a locking projection 15, and can be locked at a predetermined angle by being locked with the locking grooves 14 a and 14 b formed on the brush base 8 as described above. It becomes. The brush member 9 can be rotated by applying rotational force to the brush member 9 so that the brush member 9 is elastically deformed and the locking protrusion 15 rides on the flat surface portion 17.

  The brush member 9 is formed with a flange 20 on the side opposite to the side where the brush member 10 is provided, and is formed on the operation tube 4 or the extension tube 5 when the brush member 9 is rotated to the second angle. The socket 4d into which the connector pin 5d is inserted is closed. Thereby, when using the 2nd suction body 7, it becomes possible to prevent a dust from entering and to avoid a conduction failure. Further, it is desirable that the flange 20 completely closes the socket 4d of the operation tube 4 or the extension tube 5 when the brush member 9 is rotated to the second angle. This not only isolates the socket 4d from the flow path of the operation tube 4 or the extension tube 5, but also dust from the gap between the hook-shaped engaging portions 4b provided on the operation tube 4 and the extension tube 5 via the socket 4d. This is because it is necessary to close the socket 4d in order to prevent suction. Further, the flange 20 is formed with the socket 4d of the operation tube 4 or the extension tube 5 at the same time when the brush member 9 is at the second angle, that is, when the locking projection 15 is locked in the locking groove 14b. By abutting against the formed surface, it is possible to block the socket 4d and suppress the rattling of the brush member 9 at the same time.

  According to the vacuum cleaner 1 as described above, the flange 16 is provided on the brush base 8, and the flange 16 covers at least a part of the brush member 9 when the brush member 9 is viewed from above. Alternatively, it is difficult to apply a force to the brush member 9 when removing the second suction body 7 from the extension pipe 5, and the brush member 9 can be easily removed without causing plastic deformation or damage.

  Moreover, according to the vacuum cleaner 1 which concerns on this embodiment, as mentioned above, the material of the brush stand 8 is made of a material having high rigidity so that the second suction body 7 is not easily detached, and the brush member 9 is damaged at the time of flocking. By using materials with high toughness so as to prevent them, the suction body can be fixed and the brush member 9 can be rotated reliably and stably.

  Moreover, according to the vacuum cleaner 1 which concerns on this embodiment, the mark at the time of attaching the 2nd suction body 7 can be provided, without providing a complicated shape in the external appearance of the operation tube 4 or the extension tube 5. FIG.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Hose body 4 Operation pipe 4a Handle grip 4b Hook-like engagement part 4c Button 4d Socket 5 Extension pipe 5a Tubing 5b Tubing 5c Stopper 5d Connector pin 6 1st suction body 7 1st 2 mouthpiece (mouthpiece)
8 Brush base 9 Brush member 10 Brush member 11 Opening portion 12 Bearing 13 Shaft 14a Locking groove 14b Locking groove 15 Locking protrusion 16 Flange 17 Flat portion 18 Hole 19 Rib 20 Flange

Claims (3)

A vacuum cleaner main body, a hose body extending from the vacuum cleaner main body, an operation tube provided at the tip of the hose body, an extension tube connected to the operation tube, and at least one of the operation tube and the extension tube are detachable With a mouthpiece,
The mouthpiece is composed of a brush base attached to sandwich at least one of the operation tube and the extension tube, and a brush member having a brush member and rotatably attached to the brush base,
The said brush stand has a flange which covers at least one part of the said brush member, The vacuum cleaner characterized by the above-mentioned. The vacuum cleaner according to claim 1, wherein
The brush cleaner and the brush member are made of different materials, respectively. The vacuum cleaner according to claim 1 or 2,
In a state in which the brush base is attached to at least one of the operation tube and the extension tube, the end surface of the brush table is positioned substantially on the same surface as the end surface of the operation tube or the end surface of the extension tube. Electric vacuum cleaner.

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