JP5331733B2 - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner, improving the usability. <P>SOLUTION: This vacuum cleaner 1 includes: a cleaner body 1; a hose 3 connected to the cleaner body 1; an operating tube 4 having a grip and connected to the hose 3; a joint tube 5 connected to the operating tube 4; a first sucker 10 connected to the joint tube 5; and a second sucker 6 connected to the first sucker 10. According to user's pulling operation or twisting operation to the operating tube 4, the first sucker 10 is detached from the second sucker 6. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner in which an extension tube or the like and a suction tool can be easily attached and detached.

Conventionally, a general electric vacuum cleaner has a vacuum cleaner body, a hose that is connected to the vacuum cleaner body, a hand operating part that is connected to the other end of the hose, and a pipe that is connected to the hand operating part. The suction tool is detachably attached to the other end of the tube.
Usually, when removing the suction tool from the pipe, the operator holds both the pipe and the suction tool in his hand, or bends them while they are placed on the surface to be cleaned. The release button is pressed to release the engagement between the pipe and the suction tool, and the suction tool is removed from the pipe.

On the other hand, a vacuum cleaner that releases the engagement between the pipe and the suction tool without performing such a release operation is also known (for example, see Patent Document 1).
This vacuum cleaner is configured to release the engagement between the pipe and the suction tool by performing an operation of standing the pipe substantially vertically with the suction tool placed on the floor (for example, Patent Document 1).

In addition, there is also known one in which an operation pedal is provided in the suction tool and the engagement between the pipe and the suction tool is released by stepping on the operation pedal with a foot (for example, see Patent Document 2). .
According to such a vacuum cleaner, as described above, it is not necessary for the operator to perform the release operation by holding the tube and the suction tool or bending over, and the release operation is easy.

Japanese Patent Laid-Open No. 2005-287659 Japanese Patent No. 3826846

  However, in the electric vacuum cleaner of Patent Document 1, since the tube and the suction tool are disengaged by standing the tube substantially vertically, the tube becomes substantially vertical during cleaning. If it becomes, there existed a possibility that the suction tool might remove | deviate from a pipe unexpectedly.

  Moreover, in the electric vacuum cleaner of the said patent document 2, since an engagement with a pipe | tube and a suction tool will be easily cancelled | released if an operation pedal hits furniture etc. during cleaning, a suction tool is unexpectedly removed from a pipe | tube during cleaning. There was a problem that it fell off and was unusable.

  This invention solves the said conventional problem, and aims at providing the vacuum cleaner which can aim at the improvement of usability.

The present invention provides a vacuum cleaner main body, a hose connected to the vacuum cleaner main body, an operation pipe having a handle and connected to the hose, a joint pipe connected to the operation pipe, and other than the joint pipe In the vacuum cleaner provided with the 2nd suction tool connected to an end , and the 1st suction tool connected to the other end of the 2nd suction tool, the 1st suction tool and the 2nd A lock means for locking the connection with the suction tool, and after the operation tube is erected, the operation tube is pulled, and then the operation tube is further twisted to lock the lock. It is cancelled | released and the said 1st suction tool remove | deviates from the said 2nd suction tool, It is characterized by the above-mentioned.

  According to the present invention, the first suction tool can be separated from the second suction tool when the user performs two different operations, that is, a pulling operation and a twisting operation on the operation tube. That is, only the pulling operation or the twisting operation does not disconnect the first suction tool from the second suction tool, so that the first suction tool is unexpectedly detached from the second suction tool during cleaning. Can be surely prevented, and a convenient vacuum cleaner can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the vacuum cleaner with which attachment / detachment with a pipe | tube and a suction tool is easy and there is no possibility that a suction tool may remove | deviate from a pipe | tube suddenly during cleaning is obtained.

It is an appearance perspective view showing the whole vacuum cleaner of a 1st embodiment. It is a partially transparent perspective view which shows the suction coupling of the vacuum cleaner of 1st Embodiment. It is a schematic cross section which shows the suction joint of the vacuum cleaner of 1st Embodiment. It is explanatory drawing which shows the state which started up the suction coupling of the vacuum cleaner of 1st Embodiment substantially perpendicularly. (A) is a top view which shows the principal part of a 2nd coupling when a slide member is located in a 1st position, (b) is the principal of a 2nd coupling when a slide member is located in a 2nd position. It is a top view which shows a part. (A) is a partially transparent perspective view which shows the state which started up the suction joint substantially perpendicularly, (b) is a schematic cross-sectional view similarly. (A) is a partially transparent perspective view which shows the state by which the spherical member rolled and the lock | rock was cancelled | released, (b) is also a schematic cross section. The perspective view which shows the state which the slide member moved to the 2nd position after lock release, (b) is a schematic cross section similarly. (A)-(c) is explanatory drawing which shows the procedure at the time of removing a 1st suction tool from a 2nd suction tool. It is a perspective view which shows an attachment aspect. (A) is a partially transparent perspective view which shows the suction coupling of the vacuum cleaner of 2nd Embodiment, (b) is a typical cross-sectional view similarly. (A) is a partially transparent perspective view which shows the state by which the spherical member rolled and the lock | rock was cancelled | released, (b) is also a schematic cross section. The perspective view which shows the state which the slide member moved to the 2nd position after lock release, (b) is a schematic cross section similarly. It is a perspective view which shows a usage example. It is a schematic diagram which shows a usage example. It is a schematic cross section which shows the suction joint of the vacuum cleaner of 3rd Embodiment. It is a model expanded sectional view which shows the ditch | groove and storage chamber which comprise a locking means. (A)-(d) is a model expanded sectional view which shows an effect | action when a spherical member rolls and a lock | rock is cancelled | released. It is a partially transparent perspective view which shows the suction coupling of the vacuum cleaner of 4th Embodiment. (A) is a perspective view which shows the principal part of a suction joint, (b) is a schematic cross section similarly. (A)-(c) is explanatory drawing which shows the procedure at the time of removing a 1st suction tool from a 2nd suction tool.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
(First embodiment)
As shown in FIG. 1, the vacuum cleaner 1 includes a vacuum cleaner body 2, a hose 3, an operation pipe 4 provided with a hand operation SW, an extension pipe 5 as a joint pipe (pipe), and a suction tool. As a second suction tool 6 and a first suction tool 10 as a suction tool.
The vacuum cleaner main body 2 includes an electric blower that generates a suction force (not shown) and a dust collection unit that stores dust collected by the suction force of the electric blower. The operation level of the electric blower can be switched by the operation of the hand operation SW provided on the pipe 4.
In the following description, when referring to the direction of each part, the direction shown in FIG. In addition, when saying the direction of each part, the side (rear side) close | similar to the cleaner body 2 may be called one end side, and the opposite side (front side) may be called the other end side.

One end of the hose 3 is connected to the connection port 2 a of the cleaner main body 2 so as to communicate with the dust collecting portion of the cleaner main body 2, and the other end of the hose 3 is connected to the operation tube 4. The extension pipe 5 is composed of two pipe bodies 5 </ b> A and 5 </ b> B and can be expanded and contracted, and one end of the pipe body 5 </ b> A is connected to the other end of the operation pipe 4.
The second suction tool 6 is a suction tool connected to the other end of the tubular body 5B of the extension pipe 5, and the first suction tool 10 is connected to the other end. The 2nd suction tool 6 functions as a suction tool which sucks dust independently by removing the 1st suction tool 10 from the other end. In addition, the 2nd suction tool 6 represents the cross section and the external shape typically in drawing to refer.

  The 1st suction tool 10 is a suction tool connected to the other end of the 2nd suction tool 6, and the suction inlet 10a is opened by the lower surface (surface facing a surface to be cleaned). The first suction tool 10 can also be connected to the other end (upstream side) of the tube 5B of the extension pipe 5 and the other end (upstream side) of the operation tube 4.

  The first suction tool 10 is attached to the rear side of the suction body 10A and the suction body 10A including the lower case 11 that forms the lower part, and the upper case 12 that is attached to the upper part of the lower case 11. A suction joint 10B in which passages R1 and R2 are formed.

The suction joint 10B includes a first joint 20 and a second joint 30 connected to the first joint 20 so as to be rotatable in the direction of the arrow X1 (left and right direction) in FIG. .
As shown in FIGS. 2 and 3, the first joint 20 includes a base body 21 in which a suction passage R <b> 1 is formed and a cover member 22 attached to the upper surface of the base body 21.
A rotation shaft portion 21a is formed at the front end portion of the base body 21, and the rotation shaft portion 21a is a motor provided inside the rear portion of the mouthpiece body 10A (see FIG. 1) as shown in FIG. 2 and 4 is supported between the rear portion of the cover 8 and the upper case 12 (see FIG. 1) so as to be rotatable in the direction of the arrow Y1 (vertical direction) in FIGS.
As shown in FIG. 4, a notch 21 b is formed at the end of the rotating shaft 21 a, and the notch 21 b has a vertical positioning means 9 disposed at the rear of the motor cover 8. The sliding member 9a is engaged. The sliding member 9a is biased by the coil spring 9b in a direction (upward) to be engaged with the cut portion 21b.
In the present embodiment, the reference surface F and the extension pipe 5 (see FIG. 1) when the suction port surface of the first suction tool 10 facing the surface to be cleaned (not shown) is defined as the reference surface F by the vertical positioning means 9. Is set to be 90 degrees or more.
Strictly speaking, the angle θ is not necessarily 90 degrees or more, and may be less than 90 degrees as long as the angle can be released by the spherical member 46 as the moving member as described later. Good.

  As shown in FIG. 3, the front end of the rotating shaft portion 21a is open, and the suction passage R1 of the first joint 20 communicates with the suction port 10a of the suction body 10A (see FIG. 1) through this opening. ing. A lower cover 23 is attached to the lower portion of the rotating shaft portion 21a, and an opening edge 30a of the second joint 30 is rotatably held between the rear portion of the lower cover 23 and the base body 21. ing.

The cover member 22 is attached to the upper surface of the base body 21, and an opening edge 30 a of the second joint 30 is rotatably held between the cover member 22 and the base body 21.
The cover member 22 forms a space K between the upper surface of the base 21 and a harness (not shown) for supplying power to the motor or the like built in the suction body 10A is formed in the space K. It is to be accommodated.

  As shown in FIG. 2, a concave portion 24 is formed at the rear end of the cover member 22 at a central portion in the left-right direction. The concave portion 24 is adapted to engage a sliding member 35 of positioning means described later of the second joint 30.

  The second joint 30 includes a tubular base body 31 in which a suction passage R2 is formed, and a cover member 32 attached to the upper surface of the base body 31, and a second suction tool is provided at the rear part of the base body 31. 6 (refer to FIG. 1) is formed with a cylindrical connecting portion 33 that can be connected. As shown in FIG. 3, an engagement portion 40 is formed on the upper surface of the cylindrical connection portion 33 to engage with a hook-like engagement member 6 a provided on the second suction tool 6.

  As shown in FIG. 2, the engaging portion 40 includes a slide member 41 as a sliding member disposed in a square concave groove 40 a formed on the upper surface of the cylindrical connecting portion 33, and the slide member 41 as a concave groove. A frame member 42 having a square frame shape that is slidably held in 40a.

  The slide member 41 includes a plate-like base portion 41a, a guide portion 41b provided integrally with the front portion of the base portion 41a, and a rear portion of the base portion 41a, and is engaged with the second suction tool 6. A locking portion 41c formed with a second surface 41d on which the member 6a is locked.

  Such a slide member 41 is slidable in the axial direction of the extension tube 5 (cylindrical connecting portion 33) between a pair of first surfaces 44, 44 described later of the frame member 42, and can be repositioned. A first position (see FIGS. 3 and 5 (a)) for holding the engagement of the engagement member 6a of the second suction tool 6 between the first surfaces 44 and 44, and a frame The locking portion 41 c moves to the rear end 42 a of the member 42, and can adopt a second position where the second surface 41 d is positioned on the side of the notches 45, 45 described later of the frame member 42. ing. In other words, the notches 45, 45 are formed in portions of the first surfaces 44, 44 that are extensions of the second surface 41d.

  As shown in FIGS. 5A and 5B, the guide portion 41b includes a vertical plate-like extending portion 41b1 and a front wall portion 41b2. A concave groove 41e is formed in the upper portion of the extending portion 41b1 (see FIG. 2). In this concave groove 41e, a spherical member 46 constituting a locking means is arranged. Further, as shown in FIG. 3, a housing chamber S1 capable of housing the spherical member 46 is formed on the inner surface of the cover member 32 corresponding to the concave groove 41e. The depth of the concave groove 41 e is smaller than the diameter of the spherical member 46. The depth of the concave groove 41e is preferably larger than the radius of the spherical member 46.

  As will be described later, the concave groove 41e and the storage chamber S1 communicate with each other when the locking portion 41c of the slide member 41 is in the first position (the position shown in FIGS. 3 and 5A). It is provided so as to be in a positional relationship. Accordingly, the first joint 20 and the second joint 30 are made so that the angle θ formed by the reference plane F (see FIG. 4) and the axis O1 of the extension pipe 5 (see FIG. 1) is 90 degrees or more. When standing, the spherical member 46 in the concave groove 41e rolls into the accommodation chamber S1 by gravity (see FIGS. 7A and 7B). The shape of the spherical member 46 is not limited to a spherical shape, and may be an elliptical shape, a cylindrical shape, or a square shape as long as it can be easily moved from the concave groove 41e to the storage chamber S1.

Further, as will be described later, when the locking portion 41c of the slide member 41 is in the second position (see FIG. 5B), the concave groove 41e slides backward from the storage chamber S1, It is located behind the cover member 32.
The front wall portion 41b2 is provided integrally with the front portion of the extending portion 41b1, and is slidable along a vertical wall 31a (see FIG. 3) provided on the base 31. Here, the rear end portion 31b of the vertical wall 31a is inclined downward toward the rear, and as shown in FIG. 5B, the locking portion 41c of the slide member 41 slides to the second position. Even in the case of (slide to the rear end), the front wall portion 41b2 is configured to engage with the rear end portion 31b.
As a result, smooth sliding of the slide member 41 is realized. In addition, the inclined surface 41f of the front part of the extension part 41b1 engages with the rear-end part 31b (refer FIG. 3).

In the present embodiment, as will be described later, the spherical member 46 rolls from the concave groove 41e into the accommodation chamber S1 (the first joint 20 and the second joint 30 are raised and spherical at the release position. The sliding state of the slide member 41 is released (by rolling the member 46) (see FIGS. 7A and 7B), and the slide member 41 can be slid backward. Yes.
On the other hand, as shown in FIG. 3, when the spherical member 46 is positioned in the concave groove 41e (when in the holding position), the spherical member 46 is placed on the side wall 39c of the rear wall portion 39b shown in FIG. It abuts against the sliding of the slide member 41 to the rear. As a result, the backward sliding of the slide member 41 is brought into a locked state.

  Between the front wall portion 41b2 and the rear wall portion 39b, a pair of coil springs 38 serving as urging means for urging the slide member 41 from the second position toward the first position is contracted. .

  At the rear end portion of the cover member 32, a pair of power supply terminals 37, 37 extending in the axial direction of the extension pipe 5 (the axial direction of the cylindrical connecting portion 33) are provided. The power supply terminals 37, 37 are provided corresponding to connection portions (not shown) provided at the front end portion of the second suction tool 6, and the second suction tool 6 is inserted into the second joint 30. Once connected, they are electrically connected to a connection portion (not shown). The power supply terminals 37 and 37 may be three instead of two.

  As shown in FIGS. 2 and 5A, the frame member 42 has a pair of first surfaces 44, 44 along the axial direction of the extension pipe 5 (cylindrical connecting portion 33), and at the rear end portion. Notches 45 and 45 are provided. Between the pair of first surfaces 44, 44, a locking portion 41c of the slide member 41 is disposed so as to be slidable in the axial direction. The notches 45, 45 have a size that allows the engagement member 6a of the second suction tool 6 to move in the circumferential direction, and the locking portion 41c is the second shown in FIG. 5B. The engaging member 6a can be detached from the engaging portion 40 by passing through the notch 45 from the second surface 41d.

Here, as shown in FIG. 3, the hook-shaped engaging member 6 a provided in the second suction tool 6 is urged toward the side protruding toward the engaging portion 40 by an urging member (not shown). By this urging, it is locked to the second surface 41d of the locking portion 41c of the slide member 41.
The engaging member 6a can release the locked state against the urging force by pressing the button 6b provided on the upper surface of the second suction tool 6.

Next, the engagement / disengagement operation between the second joint 30 of the first suction tool 10 and the second suction tool 6 will be described.
When connecting the second suction tool 6 to the second joint 30, the second suction tool 6 is inserted into the cylindrical connection portion 33 of the second joint 30, and the engaging portion of the second joint 30 is inserted. The engaging member 6 a of the second suction tool 6 is engaged with 40.
At this time, when the second suction tool 6 is inserted into the cylindrical connecting portion 33, the engaging member 6a gets over the locking portion 41c of the slide member 41, and the second surface of the locking portion 41c by the biasing force. It is locked to 41d. Thereby, the second suction tool 6 can be connected to the second joint 30.

Here, at the time of connection, the locking portion 41c is in the first position, and the concave groove 41e and the storage chamber S1 communicate with each other, so that the first joint 20 and the second joint 30 are raised as described above. Otherwise, the spherical member 46 is located in the concave groove 41e by gravity.
As a result, as shown in FIG. 5A, the spherical member 46 abuts against the side wall 39c of the rear wall portion 39b to obstruct the slide of the slide member 41 to the rear, and the slide member 41 is moved to the first position. It will be locked so that it cannot slide.
Therefore, the locked state of the slide member 41 can be suitably maintained even when an operation of pulling or pushing the extension tube 5 by gripping the operation tube 4 (see FIG. 1, the same applies hereinafter) by hand during use. Thus, the engagement member 6a is not detached from the locking portion 41c of the slide member 41.

Next, the case where the connection between the first suction tool 10 and the second suction tool 6 is released will be described.
First, as shown in FIGS. 6A, 6B, and 9A, the first joint 20 and the second joint 30 are erected. Then, as shown in FIG. 4, when the angle θ between the reference plane F and the axis O1 of the extension pipe 5 (see FIG. 1) is 90 degrees or more, it is shown in FIGS. 6 (a) and 6 (b). As described above, the spherical member 46 located in the concave groove 41e (holding position) rolls toward the accommodation chamber S1 side (release position side) as shown in FIGS. As a result, the slide member 41 is unlocked by the spherical member 46 and the position of the slide member 41 can be changed.

  Then, as shown in FIG. 9B, while holding the operation tube 4 (see FIG. 1) by hand, the extension tube 5 is moved upward (in the direction of arrow A1) by holding the first suction tool 10 with a foot. 8), the slide member 41 is pulled by the engagement member 6a and slid upward in the direction of the arrow A1, as shown in FIGS. 8A and 8B. Moving.

In this state, a twisting operation in the direction of arrow B1 as shown in FIG. 9C is applied to the operating tube 4 held by hand. Then, the engaging member 6a that has been in contact with the second surface 41d of the locking part 41c is detached from the engaging part 40 through the notch part 45 (see FIG. 8A), and the engaging member for the engaging part 40 The engagement of 6a is released.
That is, of the first suction tool 10 and the second suction tool 6, one is the tensile force in the axial direction of the extension tube 5 with respect to the other and the twisting force around the axis centered on the axis of the extension tube 5. When is acted, the engagement of the engagement member 6a with the engagement portion 40 is released.

  Thereby, the lock | rock of the connection of the 1st suction tool 10 and the 2nd suction tool 6 is cancelled | released, and these can be removed easily.

Below, the effect acquired in this embodiment is demonstrated.
(1) Since the first suction tool 10 is detached from the second suction tool 6 in response to a pulling operation and a twisting operation on the operation tube 4 by the user, the first time when two different operations are performed. The first suction tool 10 can be separated from the second suction tool 6. That is, since the first suction tool 10 is not separated from the second suction tool 6 only by the pulling operation or the twisting operation, the first suction tool 10 is unexpectedly removed from the second suction tool 6 during cleaning. It is possible to reliably prevent the disconnection, and the user-friendly vacuum cleaner 1 can be obtained.
(2) In addition to the pulling operation and the twisting operation to the operation tube 4 by the user, the operation of the angle between the surface to be cleaned and the extension tube 5 (cylindrical connecting portion 33) becomes approximately 90 degrees or more Since the 1 suction tool 10 comes off from the 2nd suction tool 6, it can prevent more reliably that the 1st suction tool 10 will come off from the 2nd suction tool 6 unexpectedly during cleaning, An easy-to-use vacuum cleaner 1 is obtained.
(3) The extension tube 5 is detached from the operation tube 4 in response to the pressing operation of the button 4b on the operation tube 4 by the user, and the second operation is performed in response to the pressing operation of the button 5b on the extension tube 5 by the user. The suction tool 6 is detached from the extension pipe 5, and in addition to the user's pulling operation and twisting operation on the operation pipe 4, the user can press the second suction tool 6 to press the second suction tool 6. Since the 1st suction tool 10 remove | deviates, it is possible to remove each part reliably and the user-friendly vacuum cleaner 1 is obtained.
(4) One of the first suction tool 10 and the second suction tool 6 is twisted around the axis centered on the basis of the pulling force in the axial direction of the extension pipe 5 and the axis of the extension pipe 5 with respect to the other. Since these are detached when a force is applied, the first suction device 10 can be separated from the second suction device 6 only when forces in two different directions are applied. That is, since the first suction tool 10 is not separated from the second suction tool 6 only by the pulling force or the torsional force, the first suction tool 10 is unexpectedly removed from the second suction tool 6 during cleaning. It is possible to reliably prevent the disconnection, and the user-friendly vacuum cleaner 1 can be obtained.
Further, for example, as shown in FIG. 4, the first joint 20 and the second joint so that the angle θ formed by the reference plane F and the axis O1 of the extension pipe 5 (see FIG. 1) is 90 degrees or more. When the force in the direction to erect 30 is applied, the slide member 41 can be unlocked (connection lock), so that the first suction tool 10 is unexpectedly moved from the second suction tool 6 during cleaning. It is possible to reliably prevent the disconnection, and the user-friendly vacuum cleaner 1 can be obtained.
(5) Since the forces in two or more different directions include the axial force of the extension tube 5 and the circumferential force of the extension tube 5, the advantage is that the direction of the force is clear and the operation is easy. It is done. In addition, as a force required for the separation, the force in the direction in which the second joint 30 is erected as described above or the torsional force around the axis centered on the axis of the extension pipe 5 is applied and then extended. There is a force for pulling the tube 5 upward.
(6) The locking means is configured to release the connection lock when the circumferential force of the extension pipe 5 is applied after the axial force of the extension pipe 5 is applied. In releasing the lock, the connection of the power terminal 37 can be reliably and easily performed in a series of operations.
(7) When the engaging member 6a is located at the first position, the power terminal 37 is connected to the connecting portion of the second suction tool, and when the engaging member 6a is located at the second position, the power source Since the connection between the terminal 37 and the connection portion is released, it is possible to suitably prevent the power supply terminal 37 from being damaged at the time of connection or release.
(8) Since the engagement portion 40 and the engagement member 6a engageable with the engagement portion 40 can be engaged and disengaged with a simple structure, the assembly is simplified and the cost can be reduced. it can.
(9) Since the slide member 41 is slidably provided between the first position and the second position, the structure for releasing the lock (connection lock) of the slide member 41 is simplified and assembled. The cost can also be reduced.
(10) Since the slide member 41 is biased by the coil spring 38 from the second position toward the first position, the slide member 41 automatically returns to the first position after the connection is released. Therefore, there is an advantage that malfunction or the like at the time of connection hardly occurs.
(11) Since the sliding member 9a of the vertical positioning means 9 is engaged with the notch 21b at the end of the rotating shaft 21a, the first joint 20 and the surface to be cleaned are The second joint 30 can be held in a state of rising vertically. Therefore, an advantage that the second suction tool 6 and the extension pipe 5 are easily attached to and detached from the second joint 30 can be obtained.
(12) As a mechanism (lock release mechanism) for releasing the lock (lock of connection) when the angle θ formed by the reference plane F and the axis O1 of the extension pipe 5 (see FIG. 1) is 90 degrees or more, In Patent Document 1, the pin D extending in the axial direction is used, but in this embodiment, since the spherical member 46 is used, the lock release mechanism is completed on the second joint 30 and formed on the cover member 22 and the base body 21. Since this is not done, the space K between the cover member 22 and the upper surface of the base 21 can be widened. Therefore, not only a harness but also a control circuit can be provided in the space K, and a plurality of light emitters (for example, LEDs) controlled by the control circuit can be provided in the cover member 22. The plurality of light emitters are operated according to the load from the surface to be cleaned applied to the rotary brush formed at the suction port 10a of the first suction tool 10 or the operation mode (for example, strong, medium, weak) of the cleaner body 2. ) Is preferably changed (for example, blue, yellow, green). The first suction is performed in response to an operation in which the user does not pull or twist the operation tube 4 and the angle between the surface to be cleaned and the extension tube 5 (cylindrical connecting portion 33) becomes approximately 90 degrees or more. The aspect which the tool 10 remove | deviates from the 2nd suction tool 6 may be sufficient.

  As shown in FIG. 10, not only the second suction tool 6 but also the extension pipe 5 and the operation pipe 4 can be connected to the first suction tool 10, and these are the same as described above. It can be separated by performing the operation. Therefore, it is possible to reliably prevent the first suction tool 10 from being unexpectedly detached from the extension pipe 5 and the operation pipe 4 during cleaning, and the user-friendly vacuum cleaner 1 can be obtained. In addition, the engaging member 6a can adopt the structure by the operation of the conventional button 6b as it is, so that the parts can be shared and the assembling work can be facilitated, and the cost can be reduced. In the drawing, the engaging member 6a corresponds to the engaging members 5a and 4a, and the button 6b corresponds to the buttons 5b and 4b.

  The first surfaces 44 and 44 are provided by forming a concave portion in the cylindrical connecting portion 33, but the present invention is not limited to this, and a rib or the like is provided in the cylindrical connecting portion 33 so that the side surfaces thereof are provided. The first surfaces 44 and 44 may be formed. Further, the notch 45 may be provided only on one of the first surfaces 44 and 44.

(Second Embodiment)
As shown in FIGS. 11A and 11B, the present embodiment is different from the first embodiment in that a locking function is provided on the sliding member 35A.
As shown in the figure, the sliding member 35A includes an extending portion 35b extending to the rear portion, and a release restricting member 35a that protrudes and retracts into the storage chamber S1 is integrally provided at the rear portion of the extending portion 35b.

  As shown in FIG. 11 (a), the release regulating member 35a has a rear end portion as shown in FIG. 11 (b) in a state where the tip of the sliding member 35A is in contact with the side surface 22a of the cover member 22. 35a1 protrudes into the storage chamber S1. As a result, the spherical member 46 is restricted from rolling toward the storage chamber S1.

  On the other hand, as shown in FIGS. 12A and 12B, the first joint 20 and the second joint 30 </ b> A are erected, and the sliding member 35 </ b> A is engaged with the concave portion 24 provided in the cover member 22. In this state, the rear end portion 35a1 is sunk from the inside of the storage chamber S1, and the spherical member 46 can roll to the storage chamber S1. Therefore, when standing, the spherical member 46 rolls from the recessed groove 41e to the accommodation chamber S1, and the lock of the slide member 41 is released.

By providing such a configuration, as shown in FIGS. 13 (a) and 13 (b), the connection can be released only when the first joint 20 and the second joint 30A take an upright posture. It becomes possible.
Accordingly, for example, when only the first joint 20 is used as shown in FIG. 14, the movement in the directions of the arrows A1 and B1 becomes impossible, and the rolling of the spherical member 46 is ensured. Will be prevented. Therefore, it is possible to reliably prevent the first suction tool 10 from being accidentally detached from the second suction tool 6 during cleaning, and the user-friendly vacuum cleaner 1 can be obtained.

  In each of the above embodiments, when the first joint 20 or the second joint 30 is erected, the wall W or the like is used as shown in FIG. 15 (so as to abut against the wall W). It can be done easily.

(Third embodiment)
This embodiment differs from the first and second embodiments in that the angle θ (see FIG. 18B) formed by the surface to be cleaned and the extension pipe 5 (see FIG. 1, the same applies hereinafter) is approximately 60 degrees or more. It is the point which comprised so that the 1st suction tool 10 may remove | deviate from the 2nd suction tool 6 (both refer FIG. 1, and the following is the same) by operation which becomes.

  As shown in FIG. 16, in this embodiment, the spherical member 46 as a moving member constituting the locking means is configured to be accommodated in a concave groove 50 having a front inclined portion 52 as an inclined portion (inclined surface). Has been. Also in this embodiment, the spherical member 46 is accommodated in the concave groove 50 and takes a holding position that holds the lock of the connection between the first suction tool 10 and the second suction tool 6 (extension pipe 5). The release position for releasing the lock is configured by rolling into the storage chamber S2 formed on the inner surface of the cover member 32 corresponding to the concave groove 50.

As shown in FIG. 17, the concave groove 50 is formed in a substantially mortar shape in the extended portion 41 b 1 of the guide portion 41 b of the slide member 41 in a side view, and includes a bottom surface portion 51 and a front inclined portion as an inclined portion. 52 and a rear inclined portion 53. The bottom surface portion 51 is provided in parallel with the axis O1 (see FIG. 4; hereinafter the same) of the extension pipe 5, and the front inclined portion 52 has a bottom surface so that the angle θ1 with the bottom surface portion 51 becomes an obtuse angle. It is formed so as to incline from the portion 51 toward the front side. In the present embodiment, the angle θ1 is set to 120 degrees.
That is, when the suction port surface of the first suction tool 10 that opposes the surface to be cleaned (not shown) is the reference surface F, the reference surface F and the axis O1 of the extension pipe 5 (or a line O1 ′ parallel thereto). When the angle between the front inclined portion 52 and the reference plane F is set to 60 degrees (see FIG. 18B).
The front inclined portion 52 is a linear inclined surface toward the storage chamber S2, but is not limited thereto, and may be formed to have a slope that is concave toward the front side. On the contrary, it may be formed so as to have a slope that is convex toward the rear side. Further, the bottom surface portion 51 is not necessarily provided in parallel with the axis O1 of the extension pipe 5.

  By providing such a front inclined portion 52, the spherical member 46 has an angle formed by the reference plane F and the axis O1 of the extension tube 5 as described with reference to FIG. 4 in the first embodiment. The first suction tool 10 comes out of the second suction tool 6 (extension pipe 5) by the operation before θ becomes 90 degrees or more, that is, the operation for making the angle θ 60 degrees or more. ing.

Note that the rear inclined portion 53 of the groove 50 is also formed to be inclined so as to have an obtuse angle from the bottom portion 51 toward the rear side.
Further, the depth of the concave groove 50 is preferably set to be 2/3 or more of the diameter of the spherical member 46, and is preferably set to about 3/4 of the diameter of the spherical member 46. .

  In the accommodation chamber S <b> 2 corresponding to the concave groove 50, a return inclined portion 62 is formed so as to be continuous with the front inclined portion 52 of the concave groove 50. The storage chamber S2 includes a top portion 61 and an inclined portion 62, and a sorting member for distributing the spherical member 46 between the concave groove 50 side and the storage chamber S2 side on the rear side of the storage chamber S2. 63 is arranged.

The top portion 61 is substantially parallel to the bottom surface portion 51 of the concave groove 50, and as shown by a two-dot chain line in FIG. 17, the spherical member 46 is formed between the top portion 61 and the inner surface 63 a of the sorting member 63. It is comprised so that it may be held between and the release position may be taken.
The inclined portion 62 forms an inclined surface that is concave (arc-shaped) toward the front side, and when the spherical member 46 is located in the storage chamber S2, the release position side (the storage chamber S2 side). It serves to assist the spherical member 46 from rolling naturally toward the holding position side (concave groove 50 side) (to facilitate rolling).

The distribution member 63 has a wedge-shaped protrusion 63b for distributing the spherical member 46 to the concave groove 50 side and the storage chamber S2 side. The protrusion 63b has a tip 63c positioned on the storage chamber S2 side (inside the storage chamber S2), and is inclined so as to face the groove 50 below the tip 63c (on the groove 50 side). The contact surface 63d is formed. The spherical member 46 can abut on the abutting surface 63d, and the extension pipe 5 is pulled upward (in the direction of arrow A1, see FIG. 18A) with the spherical member 46 in the concave groove 50. When operated, the spherical member 46 comes into contact with the contact surface 63d to restrict the movement of the slide member 41.
Note that the tip 63c of the protrusion 63b may be disposed so as to be a boundary position between the groove 50 and the storage chamber S2, and the shape is changed so that the spherical member 46 is distributed at a desired angle θ. You can also

Next, the action when releasing the connection between the first suction tool 10 and the second suction tool 6 will be described.
First, as shown in FIG. 18 (a), an angle θ formed by a reference plane F (surface to be cleaned not shown) and the axis O1 of the extension pipe 5 (here, a line O1 ′ parallel to the axis O1) is 60. In a state of 45 degrees (an angle in a general use state) that is less than 50 degrees, the spherical member 46 is located in the concave groove 50 so as to straddle the bottom surface portion 51 and the front inclined portion 52. In the holding position. In this state, even if the extension tube 5 is pulled upward (in the direction of arrow A1), the spherical member 46 comes into contact with the contact surface 63d of the distribution member 63, so that the slide of the slide member 41 is locked. Is held, and the movement of the slide member 41 is restricted.

Next, as shown in FIG. 18B, when the angle θ formed by the reference plane F and the axis O1 (line O1 ′) of the extension pipe 5 is raised to 60 degrees, which is higher than in a general use state. The bottom surface portion 51 of the groove 50 is parallel to the reference surface F, and the spherical member 46 can roll (move) from the holding position side (the groove 50 side) to the release position side (the storage chamber S2 side).
Further, as shown in FIG. 18 (c), when the angle θ formed by the reference plane F and the axis O1 (line O1 ′) of the extension pipe 5 is larger than 60 degrees, the spherical member 46 is moved to the release position side (container chamber). Rolls (moves) naturally toward (S2 side) and rolls from the front inclined portion 52 side to the inclined portion 62 side. In this state, when the extension pipe 5 is pulled up (in the direction of arrow A1), the spherical member 46 comes into contact with the protruding portion 63b of the sorting member 63, and the spherical member 46 is repelled toward the accommodation chamber S2. It moves (see FIG. 18D). Thereby, the lock of the slide member 41 by the spherical member 46 is released, and the position of the slide member 41 can be changed (change from the first position to the second position).
Even when the angle θ between the reference plane F and the axis O1 (line O1 ′) of the extension tube 5 is 60 degrees, the spherical member 46 is moved to the release position side due to the momentum when the extension tube 5 is lifted. It can move toward (accommodating chamber S2 side), and the position of the slide member 41 can be changed.

  Accordingly, the connection between the first suction tool 10 and the second suction tool 6 (extension pipe 5) is unlocked, and these can be easily removed.

  On the other hand, when the second suction tool 6 (extension pipe 5) is removed from the first suction tool 10, the slide member 41 is moved by the urging force of the pair of coil springs 38 (see FIGS. 5A and 5B). Returned from the second position to the first position. Thereby, the spherical member 46 rolls back from the storage chamber S2 side to the concave groove 50 side. At this time, the spherical member 46 smoothly rolls from the storage chamber S2 side to the concave groove 50 side by the inclined portion 62 formed in the storage chamber S2, and the spherical member 46 is reliably returned to the concave groove 50. Become.

  By providing such a configuration, the first suction tool 10 is in the second state in response to an operation in which the angle θ formed by the reference plane F and the axis O1 (line O1 ′) of the extension pipe 5 is 60 degrees or more. The first suction tool 10 is lifted slightly from the cleaning angle (approximately 45 degrees) while reliably preventing the first suction tool 10 from being accidentally detached from the second suction tool 6 during cleaning. The first suction tool 10 comes off from the second suction tool 6 at an angle (60 degrees), the handling is increased, and the vacuum cleaner 1 that is more convenient to use is obtained.

  Further, since the first suction tool 10 comes off from the second suction tool 6 at an angle (60 degrees) slightly lifted from the angle at the time of cleaning (approximately 45 degrees), as in the above embodiment, the reference surface The removal operation can be started before the angle θ formed by F and the axis O1 (line O1 ′) of the extension pipe 5 reaches 90 degrees or more, and the removal operation can be performed without difficulty and is easy to handle. The vacuum cleaner 1 is obtained.

  Further, since the sorting member 63 has the wedge-shaped protrusion 63b, the spherical member 46 can be repelled well at the tip 63c, and the sorting can be performed reliably. Therefore, the vacuum cleaner 1 that is easy to handle and more convenient to use can be obtained.

(Fourth embodiment)
This embodiment is different from the first and second embodiments in that the slide member 41 is excluded from the engaging portion 40.
As shown in FIGS. 19, 20 (a) and 20 (b), the engaging portion 40 ′ formed on the second joint 30 </ b> B is square in the rectangular groove formed on the upper surface of the cylindrical connecting portion 33. A frame member 42 is fitted, and stepped bottom surface portions 41a ′ and 41b ′ are formed in the concave groove. The stepped bottom portions 41a ′ and 41b ′ are formed so that the front side is deep and the rear side is shallow. And in the boundary part of bottom face part 41a ', 41b', locking surface 43c '(refer also FIG.20 (b) is combined) by which the engaging member 6a of the 2nd suction tool 6 is locked is formed. ing.

  In such an engaging portion 40 ′, when the second suction tool 6 is fitted into the second joint 30B at the time of connection, the engaging member 6a enters the concave groove by the biasing force, and the bottom surface portion 41b. It will be in a state of moving forward in the groove while contacting '. Then, when the second suction tool 6 is further fitted into the second joint 30B, the engaging member 6a that has advanced forward in the concave groove is changed from the bottom surface portion 41b ′ to the bottom surface portion 41a ′ at the end of the connection. And is locked so as to come into contact with the locking surface 43c ′ (see FIGS. 20A and 20B). Thus, the second suction tool 6 can be connected to the second joint 30B (see FIG. 21A).

When the connection is released, as shown in FIG. 21B, when the second joint 30B is pulled out from the second suction tool 6 (when a force in the direction of the arrow A1 is applied), the engaging member 6a moves from the bottom surface portion 41a ′ to the bottom surface portion 41b ′ over the locking surface 43c ′, moves backward in the groove while contacting the bottom surface portion 41b ′, and contacts the second surface 42a ( (See FIGS. 20A and 20B).
Here, when the second suction tool 6 is twisted in the direction of the arrow B1 as shown in FIG. 21C, the engaging member 6a is engaged with the engaging portion through the notch 45 as shown in FIG. Leave 40 '. Thus, the second joint 30B can be disconnected from the second suction tool 6.

  According to the vacuum cleaner 1 having such an engaging portion 40 ′, the first suction tool 10 can be separated from the second suction tool 6 by a pulling operation and a twisting operation on the operation tube 4 by the user. it can. That is, since the first suction tool 10 is separated from the second suction tool 6 by performing two different operations (acting forces in two different directions), the first suction tool unexpectedly during cleaning. Thus, it is possible to reliably prevent 10 from being detached from the second suction tool 6 and to obtain a vacuum cleaner 1 that is easy to use.

Note that the bottom surface portions 41a 'and 41b' are formed to the same depth, and the groove portions to which the engaging member 6a is locked are formed in the bottom surface portions 41a 'and 41b' instead of the locking surface 43c '. Good.
Further, the groove portion is not necessarily formed, and may be a bottom surface portion such as an inclined shape (tapered shape).

  In each of the above embodiments, the shape and the like of each part can be arbitrarily set, and the width and length of the slide member 41 in the circumferential direction can also be arbitrarily set.

  In the above-described embodiment, the moving member has been described with the spherical member 46. However, the moving member is not limited to this and may be a rollable columnar member.

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Hose 4 Operation pipe 4b Button 5 Extension pipe (pipe)
5A, 5B Tubing 6 Second suction tool 6a Engaging member 10 First suction tool 10B Suction joint 10a Suction port 20 First joint 30, 30A, 30B Second joint 41 Slide member 41c Locking part 41d First 2 surface 44 1st surface 45 Notch 46 Spherical member O1 Axis center R1, R2 Suction passage S1 Storage chamber

Claims (2)

A vacuum cleaner body, a hose connected to the vacuum cleaner body, an operation pipe having a handle and connected to the hose, a joint pipe connected to the operation pipe, and connected to the other end of the joint pipe In the vacuum cleaner provided with the 2nd suction tool and the 1st suction tool connected to the other end of the 2nd suction tool,
A lock means for locking the connection between the first suction tool and the second suction tool;
After the operation tube is erected, the operation tube is pulled, and then the operation tube is further twisted to release the lock by the locking means, and the first suction tool is moved to the second suction device. A vacuum cleaner characterized by being removed from the suction tool. The vacuum cleaner according to claim 1, wherein
An engagement portion provided at one of the connection portion with the second suction tool in the first suction tool, and the connection portion with the first suction tool in the second suction tool, and provided at the other And an engaging member engageable with the engaging portion,
The locking means has a moving member provided so as to be movable in accordance with an angle formed between the suction port surface of the first suction tool facing the surface to be cleaned and the shaft center of the joint pipe,
The moving member has a holding position for holding the engagement between the engagement portion and the engagement member when the angle is less than a predetermined angle, and when the angle is a predetermined angle or more, A release position for releasing the connection between the first suction tool and the second suction tool; and
When releasing the connection between the first suction tool and the second suction tool, the operation pipe is raised to move the joint pipe to a predetermined position or more to move the moving member to the release position. Thereafter, the operation tube is pulled, and then the twisting operation is further applied to the operation tube to release the engagement between the engagement portion and the engagement member, and the first suction tool is moved to the first suction tool. The vacuum cleaner characterized by detaching from the suction tool of 2.

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