JP3067043U - Electric vacuum cleaner - Google Patents

Abstract

(57) [Problem] To provide a vacuum cleaner having a connection pipe length adjusting mechanism which is compact and excellent in safety. A first end of a vacuum cleaner main body is provided with a hose mounting portion for detachably attaching a connecting body, and a connecting pipe has a transport path formed at one end thereof detachably connected to a hand handle. A first tube, a second tube slidably connected to the other end of the first tube and another end connected to the mouthpiece, the first tube being a second tube; A fixing means for fixing the body to the first tubular body and a second transmitting means for releasing the fixing state of the fixing means, wherein the handle at hand has a trigger switch for releasing the fixing means; 2
The first transmitting means and the second transmitting means are connected by connecting a hand handle and a connecting pipe, and the first switching means is connected to the connecting means by operating the trigger switch. The first transmission means is constituted by a link mechanism, and the link mechanism is provided on the first connection rod, the rotation connection plate, and the rotation connection plate. And a pair of connecting rod mounting portions and the second connecting rod.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a vacuum cleaner comprising a main body of a vacuum cleaner, a suction hose, a handle at hand, a connecting pipe, and a mouthpiece, and more particularly to a vacuum cleaner having excellent storage and transportability.

[0002]

[Prior art]

 At present, the vacuum cleaners that are widely used include a vacuum cleaner body provided with a blower for sucking dust into a dust collection chamber, and a flexible body having one end attached to the vacuum cleaner body and communicating with the blower. A suction hose, a hand handle attached to the other end of the suction hose and communicating with the blower, a connection pipe attached to the hand handle and communicating with the suction hose, and a suction pipe attached to the connection pipe. This is a canister type vacuum cleaner consisting of a mouthpiece communicating with the connection pipe.

[0003] In this canister type vacuum cleaner, the user operates the floor surface in a standing posture by the user holding the handle in his hand and operating the mouthpiece through the connection pipe. In addition, the vacuum cleaner main body can be routed through the suction hose to perform a wide range of cleaning comfortably.

In this conventional example, since the main body of the vacuum cleaner is composed of a plurality of irregularly shaped parts, various storage methods have been conventionally proposed.

[0005] The most mainstream method at present is to store the entire body in a vertical position without disconnecting the connection. Specifically, first, the back part of the main body is set up so that it comes into contact with the floor surface, and furthermore, the fixing of the extendable connecting pipe is removed to reduce its length, and the vertical posture with the suction body below and the handle at the top Attach it to the bottom side of the vacuum cleaner body. In this mounting method, the connecting pipe is mounted such that a projection provided at the end on the mouthpiece side is inserted into a recess provided at the tip of the vacuum cleaner main body.

[0006] The connecting pipe used in these conventional examples is composed of two pipes, an outer pipe and an inner pipe, and a locking recess formed along the longitudinal direction of the inner pipe is provided in the outer pipe. It is structured to be fixed at an arbitrary position via a stopper.

This conventional example is described, for example, in JP-A-8-191781 and JP-A-9-56648.

[0008]

[Problems to be solved by the invention]

 According to the conventional vacuum cleaner, since a plurality of components can be stored in a vertical position without being disassembled, it can be used immediately when desired, and can be installed easily.

However, there are the following problems. (1) First, the work of erecting the main body of the vacuum cleaner must be performed in a crouching or crouching posture. (It is not recommended to set up via a suction hose.) (2) The conventional connecting pipe is made to be able to expand and contract by sliding two pipes of different diameters. You have to manipulate and adjust its length with both hands. In use, the connecting pipe length must also be adjusted using both hands.

(3) Next, in the crouching posture or the squatting posture, the connection pipe must be attached to the bottom surface side of the vacuum cleaner main body by pressing the vacuum cleaner main body in the vertical posture. (4) Conveying is prohibited in this vertical storage position, and the vacuum cleaner body and the connecting pipe must be separated and disassembled and held in the bent position or bent position.

[0011] As described above, the conventional vacuum cleaner has to take a crouching posture or a crouching posture when storing or transporting, and the user is forced to take an unreasonable posture. By solving these issues, it is expected that the vacuum cleaner will be easier to use.

[0012] Therefore, an object of the present invention is to provide a vacuum cleaner capable of adjusting the length of a connecting pipe by a simple operation and fixing the length.

Another object of the present invention is to provide a vacuum cleaner having a connection pipe length adjusting mechanism which is compact and excellent in safety.

[0014]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a vacuum cleaner body having a blower for sucking dust into a dust collection chamber, a connector attached to a hose mounting portion of the vacuum cleaner body, and one end. A flexible suction hose attached to the coupling body and communicating with the blower, a hand handle attached to the other end of the suction hose, and a connecting pipe attached to the hand handle and communicating with the suction hose. A hose attachment part, which is attached to the connection pipe, and has a hose attachment part for detachably attaching the connecting body at a tip end of the vacuum cleaner main body, and the connection pipe is formed at one end thereof. A first pipe body whose transport path is detachably connected to the hand handle; and a first pipe body slidably connected to another end of the first pipe body and the other end connected to the mouthpiece. Consisting of 2 tubes The first tube includes fixing means for fixing the second tube to the first tube, and second transmission means for releasing the fixed state of the fixing means. A trigger switch for releasing the fixing means, and a first transmission means for transmitting the operation of the trigger switch to the second transmission means, wherein the first transmission means and the second transmission means are provided with The connecting pipes are connected to each other, and are configured to release the fixed state of the fixing means by operating the trigger switch. The first transmitting means is configured by a link mechanism. The link mechanism includes the first connection rod, the rotation connection plate, a pair of connection rod attachment portions provided on the rotation connection plate, and the second connection rod.

According to the present invention, there is provided a vacuum cleaner which is capable of adjusting the length of a connecting pipe by a simple operation, and which is provided with a compact and highly safe connecting pipe length adjusting mechanism. be able to.

[0016]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2 are external perspective views of a vacuum cleaner according to an embodiment of the present invention, FIGS. 3 to 9 are explanatory views of a hand handle, FIGS. 10 to 14 are explanatory views of a connecting pipe, and FIG. FIG. 17 is an explanatory view of a connection state between the sub-handle and the suction hose, FIG. 17 is an explanatory view of attaching a connecting pipe to the sub-handle, FIG. 18 is an explanatory view of a connecting pipe position holding means, and FIG.

First, referring to FIG. 1 and FIG. 2, a schematic structure of a vacuum cleaner according to an embodiment of the present invention will be described. FIG. 1 is an external view showing a vertical storage posture of the vacuum cleaner, and FIG. 2 is a perspective view showing a normal cleaning posture.

In FIGS. 1 and 2, a vacuum cleaner generally denoted by reference numeral 1 is a vacuum cleaner body 100 having a mechanism (not shown) for sucking dust into a dust collection chamber, for example, a blower. A connecting body (hereinafter referred to as a sub-handle part) 600 attached to a hose attaching part 101 of the vacuum cleaner main body 100, and a flexible suction hose 200 having one end attached to the sub-handle part 600 and communicating with the blower. A hand handle 300 attached to the other end of the suction hose 200 and communicating with the blower; a connecting pipe 400 attached to the hand handle 300 and communicating with the suction hose 200; And a mouthpiece 500 connected to the connection pipe 400.

In this embodiment, the sub-handle portion 600 includes a main body mounting mechanism 610 for mounting the vacuum cleaner main body 100, a hose mounting mechanism 620 for mounting the suction hose 200, and A dust path 630 for communicating the cleaner body 100 with the suction hose 200, a connection pipe mounting mechanism 640 for holding the connection pipe 400, and a handle 660 for holding the sub handle 600 by a user. By providing the vacuum cleaner, a very general vacuum cleaner can be used as the vacuum cleaner 1 having excellent storage and transportability.

For example, in this embodiment, a traveling means 102 is provided, and in the cleaning posture shown in FIG. 2, pulling traveling by a suction hose 200 attached to the hose attaching portion 101 is possible. Further, it is possible to change from this cleaning posture to a vertical storage posture in which the hose mounting part 101 is positioned upward by rotating the traveling means 102 in the direction of arrow Z about the rotation center as shown in FIG. The storage and transportability of the vacuum cleaner 1 can be further improved.

That is, in this embodiment, in the cleaning posture shown in FIG. 2, the vacuum cleaner main body 100 and the suction hose 200 are connected by the sub-handle portion 600 to secure the dust passage 630. Pulling travel by the suction hose 200 can be enabled. In addition, the sub handle portion 600 is provided with the handle portion 660 so as to protrude upward in the cleaning posture. Therefore, the posture can be easily changed. That is, through the handle portion 660, the distal end of the vacuum cleaner main body 100 provided with the hose mounting portion 101 is used as a fulcrum with the rear end of the vacuum cleaner main body 100 supported by the traveling means 102 as a fulcrum. The cleaning posture can be easily changed from the cleaning posture to the vertical storage posture by easily lifting from a position close to the floor surface to a position above the floor surface.

In addition, the dust passage 630 is provided at one end of the handle 660, and a connection pipe mounting mechanism 640 of the connection pipe 400 is provided at the other end. With this structure, the connection pipe mounting mechanism 640 is located at the upper part in the vertical storage position, so that the user can attach the connection pipe 400 to the connection pipe mounting mechanism 640 at a position close to the line of sight. The part 401 can be easily attached.

In this embodiment, the connection pipe 400 has a structure that can be expanded and contracted by accommodating the second connection pipe 440 in the first connection pipe 420, and the mounting portion 401 is connected to the first connection pipe 420. It is provided below the tube 420. Further, the vacuum cleaner main body 100 is provided with connection pipe position holding means 140 for the connection pipe 400 on the upper surface. Thereby, in the vertical storage posture, the vacuum cleaner main body 100 can be attached so as to carry the connection pipe 400.

Further, the connection pipe 400 is provided with a lock mechanism for the connection pipe expansion / contraction mechanism 402, and the hand handle 300 is provided with a trigger switch 301 which is an operation means for releasing and locking the lock mechanism. ing. Thus, the expansion and contraction of the connection pipe 400 can be adjusted by the operation of the hand handle 300, so that the trigger switch 301 is operated by operating the trigger switch 301 with the main body 100 in the vertical storage position. The connecting pipe 400 can be attached to the vacuum cleaner main body 100 while shortening the length of the connecting pipe 400.

The connecting pipe mounting mechanism 640 includes means for maintaining a connection state between the connecting pipe 400 and the mounting section 401. As a minimum function, the holding means may be held to such an extent that the vertical storage attitude is maintained, or may be firmly held. In this embodiment, when the connection pipe 400 is to be pulled upward in the storage position, the holding means is provided so that the connection state is released due to the weight of the electric vacuum cleaner body 100. In this embodiment, the connection pipe mounting mechanism 640 and the mounting section 401 of the connection pipe 400 are formed of resin, and the connection state is maintained in a state where the connection pipe is pulled obliquely by utilizing friction and distortion of the contact surface. The friction coefficient of the contact surface is set so that the connection state is released with respect to the force for pulling the vacuum cleaner main body 100 upward. In addition, a lock mechanism satisfying the above conditions may be provided. These specific solutions will be described in detail later.

As described above, according to the present embodiment, by connecting the vacuum cleaner main body 100 and the connection pipe 400 via the sub-handle portion 600, the vertical storage posture can be easily taken, and the vertical storage posture is changed. Can be maintained. Further, in this embodiment, the vacuum cleaner main body 100 and the connection pipe 400 are separately held on both sides of the handle portion 660, and the vacuum cleaner 1 in the vertical storage posture is directly held via the handle portion 660. You can lift with one hand while maintaining your posture. Thus, the load applied to the connecting portion of the handle portion 660 can be dispersed, so that the structure of the sub handle portion 600 can be simplified. In addition, the right and left weight balance when holding and holding the handle portion 660 can be improved, and the transportability can be improved.

In this embodiment, when the entire vacuum cleaner 1 is lifted via the hand handle 300, the fitting between the connecting pipe mounting mechanism 640 and the mounting section 401 is made to be disengaged. It is not necessary to make the connection between the handle 300 and the connection pipe 400 more rigid than necessary, and if the connection is lifted, the connection is released. Alternatively, damage to the connecting portion between the hand handle 300 and the connection pipe 400 can be prevented in advance.

Further, in this embodiment, the connection between the connection pipe mounting mechanism 640 and the mounting portion 401 is not disengaged even when pulled obliquely. Utilizing this, the user can move the vacuum cleaner 1 in the vertically stored posture by pulling or pushing, while holding the handle 300 by hand. That is, in this embodiment, the vertical storage posture is maintained by the moving means 102 and the legs 103 provided on the back surface of the vacuum cleaner main body 100 which is the bottom surface in the vertical storage posture.

Also, since the connecting pipe 400 is attached to the vacuum cleaner main body 100 so as to be carried on the back, the vertical storage posture is not interrupted by the mouthpiece 500 attached to the connecting pipe 400 via the moving means 102. By making the vacuum cleaner 1 oblique, the leg 103 can be lifted and the vacuum cleaner main body 100 can be supported by the moving means 102 alone. The vacuum cleaner 1 can be moved by utilizing the moving means 102.

Moreover, since the hand handle 300 is fixed to the upper end portion of the vertical storage posture, the hand handle 300 at this high position is held, and the traveling means 102 is used to vertically hold the hand handle 300. The vacuum cleaner 1 fixed in the storage position can be easily moved.

Further, in this embodiment, since the sub-handle portion 600 is detachably attached between the suction hose 200 and the vacuum cleaner main body 100, the structure of the conventional vacuum cleaner is largely changed. A vacuum cleaner with excellent storage and transportability can be easily obtained without any problems.

In addition, the height H1 of the cleaner 1 when it is stored vertically can be shortened by easily shortening the length of the connection pipe 400 by operating the handle 300 at hand and taking a storage posture. In this embodiment, the height H1 at the time of storage is set to about 1150 mm.

As described above, the vacuum cleaner 1 according to the present embodiment is excellent in storage and transportability in the vertical storage posture.

Hereinafter, the schematic structure of this embodiment will be further described with reference to FIGS. 1 and 2. The vacuum cleaner main body 100 includes a dust collecting chamber (not shown) having a disposable dust collecting bag therein, and the moving means 102 is constituted by a pair of large wheels 104 and one free wheel 105. Can be moved through. In a normal cleaning (running) posture, the large wheels 104 and the free wheels 105 take a long posture before and after being installed on the cleaning surface.

The dust collecting chamber is provided on one side in the longitudinal direction of the vacuum cleaner main body 100, and the other side is provided with an electric blower and a cord reel unit (not shown). A free wheel 105 is provided below the dust collecting chamber, and a pair of large wheels 104 are provided on both sides of the electric blower or the cord reel. Further, a hose mounting portion 101 is formed at a longitudinal end portion on the dust collecting chamber side, which is horizontally oriented along the longitudinal direction. The pair of large wheels 104 is provided on the other end side in the longitudinal direction opposite to the end where the hose mounting portion 101 is provided, and the installation portion 104a around the large wheel 104 is used as a vacuum cleaner. The main body 100 is provided so as to protrude from the bottom surface and the back surface (the other end). Accordingly, the vacuum cleaner main body 100 rotates the free wheel 105 so as to float about the rotation axis B1 of the large wheel 104 from the cleaning posture supported by the pair of large wheels 104 and the free wheel 105, The hose mounting portion 101 can be set in a vertical storage posture such that the hose mounting portion 101 is oriented vertically.

In this vertical storage position, the vacuum cleaner main body 100 is stably supported by the pair of large wheels 104 and the legs 103 provided on the upper rear surface of the vacuum cleaner main body 100. In addition, the vacuum cleaner main body 100 secures a space for arranging the electric blower and the cord reel unit disposed therein by increasing the height of the longitudinal end where the large wheel 104 is disposed. doing. The upper surface of the vacuum cleaner main body 100 is formed so as to be inclined from the one end in the longitudinal direction having a height to the other end, thereby achieving traveling performance and compactness.

Further, on the upper surface of the vacuum cleaner main body 100, a main handle portion 107 capable of maintaining and conveying the horizontally long cleaning posture is provided. The main handle 107 can be housed in the main body 100 by rotating around a rotation shaft 108 provided above the center of gravity G1 of the main body 100 of the electric vacuum cleaner.

Further, in this embodiment, the connection pipe position holding means 140 for holding the attitude of the connection pipe 400 is provided on the uppermost surface which is the top of the vacuum cleaner main body 100 in the cleaning posture. The connection pipe position holding means 140 is composed of a pair of projections 141 that support the connection pipe 400 from the left and right in a vertically stored state, and is positioned below the connection pipe mounting mechanism 640 in the vertical storage posture. It is provided on the outer surface of the cleaner main body 100.

The operation control of the vacuum cleaner main body 100 is performed by receiving an operation signal transmitted from the hand handle 300 by an infrared receiving unit 109 provided on the upper surface of the vacuum cleaner main body 100. . An electric conductive wire is provided from the hand handle 300 along the suction hose 200, and a signal for controlling the operation of the vacuum cleaner 1 via the conductive wire, for example, rotation of a motor provided in the blower. A signal for controlling the speed may be transmitted to control the operation of the vacuum cleaner 1.

Reference numeral 110 denotes an operation display unit provided on the upper surface of the vacuum cleaner main body 100, and 111 denotes a code reel button. Reference numeral 106 denotes a dust collection chamber opening / closing lid provided with the hose mounting portion 101, and is provided on the bottom side of the vacuum cleaner 100 for mounting a disposable dust collection bag provided therein. It can be opened and closed via a rotating hinge. Further, a lock mechanism and a lock button (not shown) for opening and closing are provided on the upper surface of the dust collection chamber opening / closing lid 111 facing the rotating hinge.

The sub-handle part 600 has a function of attaching the sub-handle part 600 to the main body 100 of the vacuum cleaner, a function of attaching the suction hose 200 to the sub-handle part 600, and a function of It has a function of communicating the vacuum cleaner body 100 with the suction hose 200, a function of holding the connection pipe 400, and a handle function for the user to hold the sub-handle part 600.

In this embodiment, the external structure of the sub-handle 600 is arranged in a tubular pipe structure 601 communicating the vacuum cleaner main body 100 and the suction hose 200, and in parallel with the pipe structure 601. The connection pipe mounting structure 602, a main connection body 603 for connecting the connection pipe mounting structure 602 to the pipe structure 601, and a sub connection body 604. Is formed to have a space 605 penetrating the center thereof.

The sub-structure 604 is located on the vacuum cleaner main body 100 side, and the main structure 603 is located on the opposite side. The main structure 603 and the connecting pipe mounting structure 602 have a thickness enough to allow the user to grip the two structures, and at least a penetrating space 605 at least in the penetrated space 605 so that the user does not feel uncomfortable. Surface treatment.

In the sub handle 600, the pipe structure 601 constitutes the dust passage 630, the main body mounting mechanism 610 is provided at one end, and the hose mounting mechanism 620 is provided at the other end. The connection pipe mounting mechanism 640 is provided on the mounting structure 602, and the handle 660 is provided on the main structure 603. In this embodiment, the hose mounting mechanism 620 is attached to the hose mounting section 101 such that the connecting pipe mounting structure 602 faces upward in the cleaning posture, and the hose mounting mechanism 620 is attached to the hose mounting mechanism 620. The hose connecting part 230 of the suction hose 200 is to be attached.

According to the sub handle 600, the user can easily hold the connection pipe mounting structure 602 or the main structure 603 from the cleaning posture shown in FIG. 2 to the vertical storage posture shown in FIG. Can be changed.

In the vertical storage position, the vacuum cleaner main body 100 and the connection pipe 400 are connected in a position where their longitudinal directions are substantially parallel, that is, the connection pipe 400 is connected in a substantially vertical position, so that The stability of the storage posture can be improved, and the installation area can be further reduced. The vacuum cleaner main body 100 according to this embodiment has a substantially flat bottom surface (substantially straight when viewed from the side) on which the moving means 102 is provided. The upper surface of the vacuum cleaner main body 100 is formed with an inclined surface so that the tip portion where the 101 is disposed becomes thin. Further, in the vacuum cleaner main body 100, the hose mounting portion 101 is mounted at a low position in order to reduce a fall during running.

Therefore, a large space is formed between the connection pipe 400 and the hose mounting portion 101 which are mounted substantially vertically on the vacuum cleaner main body 100 on the back. In the present embodiment, the sub handle portion 600 is arranged using this space. The position where the sub-handle portion 600 is provided is a position above the center of gravity of the vacuum cleaner 1 in the vertical storage position, and the main body of the vacuum cleaner 100, the hand handle 300 and the mouthpiece 500 are connected. It is an intermediate position between the connection pipe 400 and the upper position where the user can easily operate.

In addition, the position where the sub handle portion 600 is provided has a sufficient length necessary for the user to securely hold the vacuum cleaner 1 in the vertical storage position, although there is a large space. Horizontally long handle portion 300 can be provided.

In this embodiment, the sub-handle portion 600 is provided with the sub-structure 604 to maintain the strength. However, by forming the sub-handle portion 600 with a metal material or the like, the sub-handle portion 600 is not necessarily formed. It is not necessary to provide the substructure 604.

Further, in this embodiment, the connection pipe 400 is held in a substantially vertical posture, but it is not always necessary to take a strictly vertical posture. For example, in the vertical storage position, the direction in which the mouthpiece 500 provided below the connection pipe 400 moves away from the vacuum cleaner main body 100 so that the hand handle 300 is positioned above the vacuum cleaner main body 100. The connecting pipe mounting structure 602 is angled so that the vertical storage posture is more stably supported, and the angle at which the main body 100 of the vacuum cleaner is tilted when moving with the hand handle 300 is reduced. Therefore, the burden on the user holding the handle 300 at hand can be reduced.

Next, the suction hose 200 has a function as a transfer passage for transferring dust to the vacuum cleaner main body 100 and a function as a moving pulling unit for moving the vacuum cleaner main body 100. Have. In this embodiment, a bellows-shaped flexible hose is employed.

The hand handle 300 has a function of communicating the suction hose 200 with the connection pipe 400, a function of controlling the operation of the vacuum cleaner main body 100, a function of moving the vacuum cleaner main body 100, and a function of the suction port. It has a function of operating the movement of the body 500 and a function of fixing or releasing the expansion and contraction of the connection pipe 400.

The hand handle 300 is detachably connected to the suction hose 200, and is also detachably attached to the connection pipe 400, so that the suction hose 200 communicates with the connection pipe 400. A dust transport path is formed.

Further, the hand handle 300 is provided at a position in the longitudinal direction of the connection pipe 400, that is, at the upper end on the extension of the center axis A 1 of the connection pipe 400, with the central axis A 1 at 90 ° or more and 160 ° or less, preferably The handle portion 302 is provided at an angle (α in FIG. 2) of about 100 ° to 120 ° and at a position where its longitudinal direction A2 substantially coincides with the connection direction of the suction hose 200 and the connection pipe 400. The handle portion 302 allows the vacuum cleaner main body 100 to be moved via the suction hose 200 described above, and further allows the movement of the mouthpiece 500 to be operated. Further, the vacuum cleaner 1 in the vertical storage position can be tilted obliquely via the handle portion 302, and can be moved by pulling or pushing in this state.

In particular, according to the handle portion 302, the twisting operation, that is, the rotation P1 about the central axis A1 can be easily performed. In addition, in the twisting operation, the suction hose 200 is rotatably attached to the handle 300 so as to be always positioned below the handle portion 302 by gravity. Since the suction hose 200 is not pulled up, the burden on the wrist can be reduced. At this time, since the handle portion 302 is provided at the upper portion, the suction hose 200 provided below does not disturb the twisting operation. As a result, the mouthpiece 500 can be rotated by 90 degrees or more on the floor (cleaning surface) as described later (P2 in FIG. 2).

In addition, the above-described shape of the handle portion 302 makes it possible to relatively easily perform the rotation operation of the mouthpiece 500. The reason for this is that when the handle portion 302 is angled (α in FIG. 2), a rotational moment is generated when the handle portion 302 is twisted.

Further, an operation unit 303 for operating the vacuum cleaner main body 100 is provided near the handle unit 302. The operation unit 303 is provided with an infrared transmitting unit 304, which transmits an operation signal from the infrared transmitting unit 304 to the infrared receiving unit 107 provided on the vacuum cleaner main body 100, and supplies power to the vacuum cleaner main body 100. ON, OFF and various controls can be performed.

In addition, a trigger switch 301 for fixing or releasing the expansion and contraction of the connection pipe 400 is provided near the handle portion 302. In this embodiment, the trigger switch 301 is provided at a lower portion near the base of the handle portion 302, and is provided so that when the handle portion 302 is held, the trigger switch 301 can be operated with an index finger so as to trigger a pistol. With this mechanism, the user can operate the one-handed operation of fixing and releasing the expansion and contraction of the connection pipe 400 while holding the handle 302.

The connection pipe 400 allows the hand handle 300 to communicate with the mouthpiece 500, and further fixes the handpiece 300 and the mouthpiece 500 at a predetermined position so that the handpiece 300 The function (transmission and rotation) of the mouthpiece 500 is transmitted as the movement (movement and rotation) of the mouthpiece 500. In this embodiment, the connection pipe 400 is fixed at a predetermined length by combining two pipes having different sizes, that is, a first pipe 420 and a second pipe 440. It is configured to be extendable and retractable so that the handle 300 is attached to one side and the mouthpiece 500 is attached to and detached from the other side.

In this embodiment, the expansion or contraction of the connection pipe 400 can be fixed or released by the trigger switch 301 provided on the handle 300, and the connection can be made even if the connection pipe 400 is separated from the handle 300. A second lock switch 403 is provided on the connection pipe expansion / contraction mechanism 402 so that the pipe 400 can be expanded and contracted.

In this embodiment, a convex mounting projection 410 serving as the mounting portion 401 is provided on the end side of the tube whose length changes with the mouthpiece 500 by expansion and contraction. The attached projection 410 is provided with a fitting portion 411 protruding in both directions of expansion and contraction. According to this structure, by contracting the connection pipe 400, the fitting part 411 can necessarily be fitted to the connection pipe mounting mechanism 640 provided on the sub handle part 600, thereby improving operability. Can be done.

The suction body 500 has a suction body 1000 provided with a suction port for sucking dust on the bottom surface, and the suction body 1000 is connected to the connection pipe 400, and is transmitted through the connection pipe 400. In response to the movement of the hand handle 300, the bottom surface of the suction main body 1000 always operates so as to be in contact with the cleaning surface (floor surface), and the air flow including dust sucked from the suction main body 1000 is supplied to the connection pipe. And a free connecting portion 1500 that is communicated so as to be guided to 400.

The mouth main body 1000 has a flat and substantially rectangular shape, and the self-connecting portion 1500 is rotatably attached to the center of the upper surface thereof.

The free connecting portion 1500 is composed of a tubular first arm portion 1501 and a second arm portion 1502, and one end of the first arm portion 1501 is connected to a first rotating portion 1503. The second arm 1502 is attached rotatably in the Y direction which is an elevation angle with respect to the suction main body 1000, and one end of the second arm 1502 is connected to the first arm 1501 via a second rotating portion 1504. It is provided at the other end so as to be rotatable in the X direction for rotating the suction body 1000 in parallel with the cleaning surface. The free connecting portion 1500 is rotatably connected to the vertical direction Y and the left-right direction X of the hand handle 300 around the mouthpiece 500, and the rotation P1 of the twisting operation of the hand handle 300 is performed. Can be transmitted to the rotation P2 with respect to the cleaning surface of the suction main body 1000 as it is.

That is, according to this embodiment, when the handle portion 302 of the hand handle 300 is straightened, the depth direction of the suction main body 1000 is the same as the front-rear direction of cleaning as shown by the solid line in FIG. The cleaning in the V1 direction, which enables wide cleaning by taking the first driving mode that matches, becomes possible, and the longitudinal direction of the suction main body 1000 is cleaned as shown by the dotted line in FIG. The cleaning in the V2 direction, in which narrow cleaning can be performed by using the second driving mode that matches the front-back direction, is possible.

Further, since the first rotating portion 1503 is provided above the center of gravity G2 of the suction main body 1000, even if the suction body 500 is lifted off the floor via the connection pipe 400, the bottom surface of the suction main body 1000 The part is set to be substantially parallel to the floor surface.

Further, in this embodiment, an overhang portion 1012 is provided at the rear center of the mouthpiece main body 1000, and the overhang portion 1012 is provided with a large rear roller whose both sides are supported by a rotating shaft. . The rear roller 1007 receives the load from the hand handle 300 at the time of cleaning the cleaning surface, and improves the running and rotating performance of the mouthpiece 500 at the time of cleaning.

As described above, according to the vacuum cleaner 1 according to the present embodiment, the function of controlling the operation of the vacuum cleaner main body 100 and moving the vacuum cleaner main body 100 2 through the hand handle 300 is provided. With the function of operating the movement of the suction body 500 and the function of fixing or releasing the expansion and contraction of the connection pipe 400, the user in the standing position holding the hand handle 300 does not change his posture significantly. , Can be operated, cleaned and stored.

In addition, in this vertical storage position, the hand handle 300 is disposed and held at the topmost portion, so that the user can move through the hand handle 300 in the vertical storage position.

Next, a specific structure of the hand handle 300 will be described in more detail with reference to FIGS. FIG. 3 is a rear perspective view of the hand handle. 4A and 4B are external views of the handle, in which FIG. 4A is a front perspective view, FIG. 4B is a plan view, FIG. 4C is a front view, and FIG. 4D is a right side view. FIG. 5 is an exploded view of parts of the first tube body of the hand handle. FIG. 6 is a longitudinal sectional view of the hand handle, and FIG. 7 is an exploded view of parts of the second tube. FIG. 8 is a detailed view of the right side view of the handle at hand. FIG. 9 is a cross-sectional view for explaining the operation of the hand handle.

First, in FIG. 3, the hand handle 300 has a first tube 310 detachably attached to the connection tube 400, and a second tube 310 having a bent portion to which the suction hose 200 is detachably attached. And a second tube 350. The first tube 310 and the second tube 350 are rotatably mounted so that the suction hose 200 can be turned with respect to the center axis A1 of the connection tube 400. Therefore, for example, by twisting the handle portion 302 of the hand handle 300 in the direction of the arrow M1 (clockwise), the second tubular body 350 rotates in the direction of the arrow M2 (counterclockwise) with the twisting operation. , So that the suction hose 200 always works downward.

In the present embodiment, the first tube 310 and the second tube 350 are formed as two members. However, these members are formed as one bent tube having a substantially rectangular shape. They may be configured integrally.

As shown in FIG. 4, on the upper surface of the first pipe 310, a lock switch of the connection pipe fixing mechanism 370 that enables the operation section 303 and the connection pipe 400 to be attached and detached is provided. 371 are provided. The operation unit 303 is provided with various operation switches in addition to the infrared transmission unit 304.

The first pipe 310 is provided with a transport path 311 so that the longitudinal direction thereof substantially coincides with the extension line of the central axis A 1 of the connection pipe 400, and the first pipe 310 is provided with one end of the transport path 311. A connecting pipe connecting portion 305 is formed at one end of the pipe 310, and the connecting pipe connecting portion 305 is fitted to an end of the connecting pipe 400 to be connected.

A handle portion 302 is provided integrally with the other end of the first tube 310. The handle portion 302 extends the longitudinal direction of the first pipe 310 to extend the center axis A1 of the connection pipe 400 so as to provide a space S1 above the other end (upper end) of the transport path 311. It is formed so as to be shifted from the line, and its tip is bent so that this end is located on an extension of the center axis A1 of the connection pipe 400 and forms a predetermined angle α with the center axis A1. ing. As a result, at the end of the handle portion 302, a hold portion 302a to be held by hand is bent and formed.

In FIGS. 5 and 6, the first tube 310 includes a transport path 311 formed on the lower side, and a component placement section 312 formed inside the upper side. The transport path 311 has one end communicating with the connection pipe connecting portion 305, the other end communicating with the second pipe 350, and the other end having the second pipe 350 connected thereto. Is rotatably mounted to convey dust sucked from the mouthpiece 500 together with the airflow. That is, the second pipe 350 is located on the extension of the central axis A1 of the connection pipe 400 via the transport path 311. Are rotatably mounted.

Further, as shown in FIG. 5, the first tube 310 is composed of a lower case 313 of a resin-formed product constituting a lower portion thereof, and an upper case 314 of a resin-formed product constituting an upper portion thereof. You. The transport path 311 is provided in the lower case 313, and the lower case 313 and the upper case 314 are provided such that the component placement unit 312 is provided from the connection pipe connection unit 305 to the tip of the handle unit 302. It is formed so as to constitute the upper and lower portions of the connection pipe connecting portion 305. A rib (not shown) is formed inside the component placement section 312 for fixing the first tubular body 310 and for fixing an internally mounted product. A battery storage section 316 for storing the battery 317, a connection pipe expansion / contraction switch mechanism section 380, and a connection pipe fixing mechanism 370 for the connection pipe 400 are provided. Also, in this embodiment, by providing the connecting pipe telescopic switch mechanism 380 at the front of the operation board 315 and the trigger switch 301 at the rear of the operation board 315, the operation around the operation section 303 is concentrated. At the same time as possible, the internal mounting efficiency has been improved. Reference numeral 306 denotes a battery cover which is detachably attached to the upper case 314 for mounting the battery 317 in the battery storage section 316.

The lock switch 371 of the connecting pipe fixing mechanism 370 is rotatably supported at the center in the longitudinal direction so as to be rotatable, and has a switch 372 exposed at one end from an opening 319 provided in the upper case 314. The fixing claw 373 is formed at the other end.

The fixed claw 373 always projects from the opening formed in the lower case 313 to the inside of the transport path 311 by the spring 374, and acts so as to maintain the fixed state with the connection pipe 400. I have.

The operation board 315 is provided with a control circuit, a switch, a light emitting diode and the like, and power is supplied to the operation board 315 from a battery 317 stored in the battery storage section 316. Further, on the upper surface of the upper case 314, an operation switch for operating a switch and an infrared transmitting unit 304 are provided. In the present embodiment, the mounting position of the operation board 315 is specified by the rib, whereby the positional relationship between the operation switches and the like provided on the upper case 314 and the operation board 315 is determined. With the operation of the operation switch, an optical signal for remotely controlling the internal circuit of the vacuum cleaner main body 100 is transmitted from the light emitting diode to the infrared transmitting section 304, and the vacuum cleaner main body 100 is reflected by ceiling reflection or the like. Is transmitted to the infrared receiving section 107.

The battery housing 306 is provided at the tip of the handle 302. Accordingly, the dead space of the handle portion 302 can be effectively used, and the battery housing 316 can be arranged near the operation board 315, so that the connection can be shortened.

The connecting pipe telescopic switch mechanism section 380 fixes the length of the connecting pipe 400 to a predetermined length or releases the fixing as described above. In this embodiment, a link mechanism is employed to remotely control the connecting pipe telescopic mechanism 402 located at a position distant from the handle 300 at hand.

That is, in this embodiment, the connecting pipe telescopic switch mechanism 380 is connected to the trigger switch 301 provided near the base of the handle 302 of the lower case 313, and the trigger switch 301 is connected to the connecting pipe 400. A rotary connecting plate 381 provided therebetween, a spring 382 attached to the rotary connecting plate 381, a first connecting rod 383 connecting the trigger switch 301 and the rotary connecting plate 381, and a rotary connecting plate 381. And a second connecting rod 384 supported at the connecting pipe connecting portion 305 with the connecting pipe 400 at the other end.

As shown in the cross-sectional view of FIG. 9, a connection pipe fixing mechanism 370 is provided at the center of the end of the upper case 314 on the connection pipe 400 side. The first connecting rod 383 has a substantially rectangular shape as a whole having a part extending in parallel with the longitudinal direction of the upper case 314 and a part extending obliquely outward toward the connecting rod mounting part 381a. It is arranged in the upper case 314 so as to be shifted leftward from the center, avoiding the portion 370. On the other hand, the second connecting rod 384 has a large-diameter portion 384a at its tip and is disposed in the upper case 314 so as to be shifted rightward from the center so as to avoid the connecting pipe fixing mechanism 370. . When the trigger switch 301 is not operated, the end surface of the large-diameter portion 384 a is located at a position retracted from the end surface of the upper case 314. Note that the first connecting rod 383 and the second connecting rod 384 may have other shapes. For example, first connecting rod 383 may have a substantially L-shape as a whole including a part extending outward and a part extending in parallel with the longitudinal direction of upper case 314.

A link mechanism is constituted by the rotary connecting plate 381, the connecting rod mounting part 381 a, the first connecting rod 383, the connecting rod mounting part 381 b, and the second connecting rod 384, and the linear movement of the trigger switch 301 is controlled by the linear movement. The rotation is converted into the rotation of the rotary connection plate 381 via the first connection rod 383, and further converted into the linear motion of the second connection rod 384. The connecting rod mounting part 381a and the connecting rod mounting part 381b are formed as curved grooves that enable linear movement of each of the distal end of the first connecting rod 383 and the distal end of the second connecting rod 384.

The rotation connection plate 381 is provided in the upper case 314 and below the operation board 315, and the link mechanism can freely rotate using the space below the operation board 315. It has a configuration. The position where the rotation connecting plate 381 is provided is a position where the transport path 311 and the upper case 314 extend in parallel and a position on a bent portion slightly before the transport path 311 branches off from the upper case 314. In other words, the position where the rotary connection plate 381 is provided is a position intermediate between the trigger switch 301 and the connection pipe fixing mechanism 370.

The position above the bent portion of the second tubular body 350 makes it easy to secure a rotating space for the link mechanism including the rotary connecting plate 381, and makes the connecting pipe length adjusting mechanism compact. be able to. Further, the upper case 314 is a portion that extends substantially parallel to the lower case 313, and is suitable for stably holding the rotation connecting plate 381.

In this embodiment, a switch mounting hole 385 is formed near the base of the handle portion 302 of the lower case 313, and the trigger switch 301 is slid in the switch mounting hole 385 in the longitudinal direction of the connection pipe 400. Installed as possible. The trigger switch 301 has an inner plate 386 mounted inside the lower case 303 and a switch mounted outside the lower case 303 and connected to the inner plate 386 so as to sandwich the switch mounting hole 385. And a plate 387.

The rotation connection plate 381 is rotatably mounted on a screw base 318 for mounting the upper and lower cases 313 and 314 via screws (not shown) for mounting both cases. The rotation connection plate 381 has connection rod mounting portions 381a and 381b for mounting the first and second connection rods 383 and 384 on both sides, respectively. One end of the first connecting rod 383 is provided at one end 381 a of the connecting rod mounting part, and the other end of the first connecting rod 383 is provided at the inner plate part 386. 386a. The other end of the second connecting rod 384 is attached to the other connecting rod mounting part 381b of the rotary connecting plate 381, and the other end of the second connecting rod 384 is exposed to the connecting pipe connecting part 305. Is provided. The spring 382 is mounted between one of the connecting rod mounting portions 381a of the rotary connecting plate 381 and the lower case 313, and pulls the trigger switch 301 (force for fixing the connecting pipe expansion and contraction mechanism 402). Works.

According to this structure, the user holding the handle portion 302 can hold the grip firmly with the thumb, middle finger, ring finger, and little finger, and forcibly push the trigger switch 301 with the remaining index finger to trigger the pistol. It can be operated without. The force acting in the direction away from the connection pipe 400 by the trigger switch 301 is converted by the rotary connection plate 381 into the force in the opposite direction, that is, the direction approaching the connection pipe 400, and the force of the second connection rod 384 is changed. It acts so as to protrude the end on the connection pipe connecting portion 305 side, and is converted into a force in a direction for releasing the fixed state of the connection pipe fixing mechanism 402 of the connection pipe 400 described later. Further, the spring 382 is always fixed when the trigger switch 301 is not pulled (not operated).

In the above embodiment, the support shaft of the rotary connection plate 381 is provided in the lower case 313 in the vertical (vertical) direction. However, the support shaft is provided between the upper case 314 and the lower case 313 in the horizontal direction. It may be provided in the (horizontal) direction.

As described above, in this embodiment, a force is easily applied by one-handed operation with the hand holding the handle portion 301, and the force is easy to release or fix the connection pipe expansion / contraction mechanism 402. The mechanism is powerful.

Further, the second pipe 350 rotatably connected to the transport path 311 of the first pipe 310 has a bent portion, and as shown in FIG. A first connecting portion 351 having a central axis A4 coinciding with an extension of the axis A1; A second connection portion 352 having a center axis A3 of the transmission path 311 and a center axis A5 forming a predetermined angle is formed by bending downward from the first connection portion 351.

Then, the first connecting portion 351 of the second pipe 350 is inserted into the transport path 311 so as to be relatively rotatable, and the transport path 311 of the first pipe 310 is The first connecting portion 351 of the tube 350 is connected so as not to be disengaged by the coupling means 353, whereby the second tube 350 can rotate about the extension of the central axis A1 of the connecting tube 400. It is configured as follows.

Here, the coupling means 353 for preventing the transport path 311 from being detached from the first connection portion 351 can be of any type, but in the present embodiment, as shown in FIG. After the annular groove 354 is provided in the connection part 351 and the first connection part 351 is inserted into the transport path 311, one of the retaining pieces 356 is removed from the openings 355 provided on both sides of the transport path 311. By inserting the portion into the annular groove 354, the first tube 310 and the second tube 350 are rotatably connected so as not to come off. In addition, since the retaining piece 356 is detachably attached, the retaining piece 356 is detached and the first pipe 310 and the second pipe 350 can be easily removed at the time of maintenance such as when dust is clogged in the pipe. Can be decomposed into

As shown in FIG. 7, a connection ring 210 is attached to an end of the suction hose 200. The connection ring 210 is connected to an end of the second connection portion 352 of the second pipe 350. The second connection portion 350 and the suction hose 200 are connected by being detachably inserted into the portion. Reference numeral 211 denotes a locking portion of the connecting ring 210, and reference numeral 356 denotes a locking portion of the second connection portion 352. The locking portion 211 and the locking portion 356 are inserted and connected to form a second connection portion. 352 and the suction hose 200 are connected so as not to come off.

Here, since the locking portion 211 of the connection ring 210 is formed by cutting off the other three sides while leaving one side, it has the function of a spring using the elasticity of the resin. By sandwiching and locking the engaged locking portion 211 from both sides, the connection can be released and the second connecting portion 352 and the suction hose 200 can be removed. Therefore, disassembly can be performed easily and maintenance when dust is clogged is easy.

In the present embodiment, the end of the suction hose 200 is held by the connecting ring 210 so as to be rotatable by the connecting means. As a result, the suction hose 200 is connected to the second pipe. When connected to the second connection portion 352 of the body 350, the suction hose 200 is configured to rotate relative to the second connection portion 352. Thereby, twisting of the suction hose 200 can be prevented. That is, according to this embodiment, since the suction hose 200 is connected to the handle portion held by the user by the double rotation mechanism, unnecessary load on the wrist to be held is significantly reduced. Can be.

As shown in FIG. 8, in this embodiment, the first tube 310 and the second tube 350 are assembled to complete the handle 300, and the suction hose 200 is attached to the handle 300. When the connection pipe 400 is attached, the center axis A3 of the transport path 311 and the center axis A4 of the first connection portion 351 which are on the extension of the central axis A1 of the connection pipe 400, and the second connection portion 352 Is set to be 90 degrees to 150 degrees. This means that the suction hose 200 always hangs obliquely downward when the user stands while holding the holding portion 302a of the handle portion 302 of the handle 300 during cleaning. This is to make it possible to easily pull and move the cleaner body 100 and to hold the holding portion 302a of the handle portion 302 and not to disturb the hand for operating the trigger switch 301. .

Next, the operation of the hand handle will be described with reference to FIG. When the trigger switch 301 is not operated, as shown in FIG. 9A, the end surface of the large-diameter portion 384a is at a position retracted from the end surface of the upper case 314. Next, in a mode in which the trigger switch 301 is operated, as shown in FIG. 9B, the diameter of the rotary mechanism is controlled by the link mechanism including the rotary connection plate 381, the first connection rod 383, and the second connection rod 384. The end face of the large portion 384 a is pushed out to the end face side of the upper case 314. Along with this, as will be described later, the third connecting rod 426 of the connecting pipe 400 that is in contact with the end face of the large-diameter portion 384a is pushed out. In the present embodiment, even when the trigger switch 301 is operated, the distal end surface of the large-diameter portion 384a is at a position retracted from the end surface of the upper case 314. If the distal end surface of the large-diameter portion 384a protrudes from the end surface of the upper case 314 when the trigger switch 301 is operated, there is a possibility that the eyes or the like may be damaged due to an erroneous operation. So be safe.

Further, since the second connecting rod 384 does not protrude beyond the end surface of the upper case 314 of the hand handle 300, it can be connected to a suction port or the like that is not structured to receive the second connecting rod 384.

Next, the configuration of the connection pipe 400 will be described in further detail with reference to FIGS. FIG. 10 is an exploded view of the parts of the connection pipe 400, FIG. 11A is a cross-sectional view of the connection pipe 400 in a contracted state, and FIG. 11B is a plan view of the connection pipe 400 in a contracted state. . FIG. 12 is a longitudinal sectional view showing a state where the connection pipe 400 is contracted. 13 (a) and 13 (b) are diagrams for explaining the operation of the second lock switch 431, and FIG. 14 is a diagram for explaining the operation of the connecting tube telescopic switch mechanism 380 of the hand handle 300 and the connecting tube 400. .

As described above, the connection pipe 400 includes the first connection pipe 420 arranged on the handle 300 side, the sleeve 429 inserted into one end of the first connection pipe 420, and the mouthpiece. And a second connection pipe 440 arranged on the 500 side. The second connection pipe 440 is formed to be thinner than the first connection pipe 420, and one end of the second connection pipe 440 is inserted into a communication portion 421 (opening) of one end of the first connection pipe 420. By moving inside the first connection pipe 420, the length of the connection pipe 400 can be adjusted.

The first connection pipe 420 forms a component placement section 424 with a connection pipe section 423 formed of a resin material having a transport path 422 through which dust passes, and the connection pipe section 423. And a connection pipe cover 425 formed of a resin material. Both members are attached via screws (not shown). The transport path 422 is provided so as to penetrate both longitudinal ends of the connection pipe. In addition, the component disposing portion 424 forms a recess along one side (upper side) in the longitudinal direction of the connection tube portion 423 along the longitudinal direction, and the connection tube attached to cover the recess. It is composed of a cover 425.

The component disposing portion 424 is provided with a connecting pipe expansion / contraction mechanism 402 and a third connecting rod 426. The connecting pipe expansion / contraction mechanism 402 is provided at an end of the component placement section 424 on the mouth body 500 side, and one end of a third connecting rod 426 is attached to the connection pipe expansion / contraction mechanism 402, and the other end is provided. Is attached to the end on the handle 300 side.

A sleeve 429 is mounted inside one end of the first connection pipe 420 via a packing 429b and a packing presser 429c.

The connecting pipe expansion / contraction mechanism 402 operates a lock pin retainer 428 movably attached to an opening 427 formed in a wall between the transport path 422 and the lock pin retainer 428. A second lock switch 431, a spring 428 b for always maintaining the second lock switch 431 in a fixed state, and a lock pinched between a fixed claw 429 a formed on the sleeve 429 and the lock pin holder 428. It consists of a pin 428a. When the lock pin 428a fits into the fixing groove 441 provided at a predetermined interval on the surface of the second connection pipe 440, the connection pipe expansion / contraction mechanism 402 is fixed.

The lower surface of the lock pin retainer 428 has an inclined surface that becomes higher toward the side closer to the second lock switch 431, and the lock pin 428 a is in contact with the inclined surface and extends in the longitudinal direction of the connection pipe 400. The movement causes the lock pin 428a to protrude and retract into the fixing groove 441.

As shown in FIG. 13, the lock pin retainer 428 is in contact with the end of the third connecting rod 426, and receives a force along the longitudinal direction of the connecting pipe 400 by the third connecting rod 426. Then, the second lock switch 431 is pressed and moved, and operates in the same manner as when the switch portion 431a is independently moved and operated to release the fixation of the connecting pipe telescopic mechanism portion 402. . Therefore, the connecting rod mounting portion and the third connecting rod 426 do not necessarily need to be connected, but may be in contact with each other, and may act so as to release the fixed state as the third connecting rod 426 moves. In this way, the assemblability can be improved.

In this embodiment, the connection pipe cover 425 and the connection pipe section 423 constitute a handle connection section 434 for connecting to the handle 300 at hand.

[0111] The handle connection portion 434 forms an end 435 of the transport path 422 in a convex shape. Then, by connecting the handle connection portion 434 and the connection pipe connection portion 305, the end 435 of the convex conveyance path 422 is inserted and fitted into the opening of the connection pipe connection portion 305, and further. The fixing claw 373 of the lock switch 371 shown in FIG. 5 is fitted and fixed to the end 435 by the connection pipe fixing mechanism 370.

As shown in FIG. 11, the distal end of the third connecting rod 426 extends outside the end 435 of the transport path 422 and is located at a position retracted from the end surface of the end 435. If the third connecting rod 426 protrudes, it may damage the eyes or the like, but in this embodiment, it is safe because it does not protrude beyond the end face of the end 435.

Further, by the fitting, the end of the second connecting rod 384 and the end of the third connecting rod 426 are connected. Thereby, the second and third connecting rods 384 and 426 moving along the longitudinal direction of the connecting pipe 400 are connected to each other, and the operation of the trigger switch 301 can be transmitted to the connecting pipe extending / contracting mechanism 402. . In this embodiment, the ends of the connecting portions are connected to each other, so that the ends of the second and third connecting bars 384 and 426 come into contact with each other. 426, one of the supporting portions on which the ends are supported is concave, and the other end is convex, thereby facilitating the positioning of the two supporting portions and ensuring the connection.

Further, the end of the connection pipe portion 423 of the first connection pipe 420 (on the side of the second connection pipe) is provided with a fitting portion 411 that protrudes in the above-described expansion and contraction direction, and is provided with a convex mounting projection 410. It is provided. The mounting projection 410 is formed on the back side of the connecting pipe expansion / contraction mechanism 402 and is located at the end of the first pipe 420 and at the lowermost position. The handle 300 can be attached to the vacuum cleaner main body 100 at the highest position.

On the other hand, the second connection pipe 440 includes a pipe portion 444 made of a metal material forming the garbage transport path 452, and a first end member 442 and a second end member made of a resin material provided at both ends thereof. 443. The first end member 442 is provided so as to be movable in the transport path 422 of the first connection pipe 420, and its peripheral side surface is movable in the transport path 422 so that there is no air leakage. It is mounted thicker than the pipe section 444. The first end member 442 also has a function of a stopper for preventing the second connection pipe 440 from dropping from the transport path 422.

As described above, the fixing groove 441 provided on the surface of the pipe portion 444 at a predetermined interval is directed. By fitting the lock pin 428a into the fixing groove 441, the connection pipe 400 can be adjusted to a predetermined length. The interval between the fixing grooves 441 can be appropriately determined. A number may be added to each of the fixing grooves 441 so that the user can always recognize the length used.

The second end member 443 enables connection of the mouthpiece 550 to the free connection portion 1500. The second end member 443 includes a base portion 443a having a mounting portion 453 communicating with the pipe portion 444, and an upper cover 443b. On one side surface of the base portion 443a, there is provided a concave component arrangement portion 446 provided with a mouthpiece coupling mechanism portion 445 for coupling with the universal coupling portion 1500, and the component arrangement portion 446 is covered so as to cover the component arrangement portion 446. The upper cover 443b is attached with screws (not shown).

The mouthpiece connecting mechanism 445 includes a lock switch 447 and a spring 448. The lock switch 447 is rotatably supported at the center in the longitudinal direction, and has a switch 444a formed at one end exposed from an opening 449 provided in the upper cover 443b, and a fixed claw 450 formed at the other end. Is done. Then, the fixed claw 450 always projects inwardly from the opening 451 formed on the wall surface between the mounting portion 441 and the spring 448 to maintain the fixed state of the suction body 500 with the free connection portion 1500. Is acting like.

As shown in FIG. 12, below the second connecting pipe 440, when the mounting portion 401 provided on the connecting pipe 400 is engaged with the connecting pipe mounting mechanism 640, the vacuum cleaner main body is removed. A brush 700 is provided so as to be in contact with the body 100. This prevents the side surface of the vacuum cleaner main body 100 from being damaged by the second connection pipe 440. Instead of the brush 700, a buffer member such as sponge or rubber may be provided.

As described above, according to the connection pipe 400 according to the present embodiment, the length of the connection pipe 400 can be adjusted by operating the second lock switch 431 of the connection pipe 400. This is effective when disassembling the vacuum cleaner 1 into individual parts and storing or assembling. Furthermore, in this embodiment, the length of the connection pipe 400 can be adjusted even by operating the hand handle 300, so that the length of the connection pipe 400 can be adjusted without significantly changing the posture when standing up during cleaning. can do. Moreover, in the present embodiment, the handle 300 and the connection pipe 400 can be separated from each other while the length of the connection pipe 400 in the handle 300 is provided, so that the storage property can be improved.

FIG. 14 conceptually shows an operation mechanism of the connection pipe expansion / contraction switch mechanism 380 of the handle 300 and the connection pipe expansion / contraction mechanism 402 of the connection pipe 400. FIG. 14A is a conceptual mechanism diagram of the first embodiment. In the mouthpiece assembly 600 according to the present embodiment, the hand handle 300 and the connection pipe 400 having a telescopic function are detachable, and the connection pipe is operated by operating a trigger switch 301 provided on the hand handle 300. As long as the structure 400 can be expanded and contracted, the structure is not limited to the structure of the first embodiment shown in FIG.

FIGS. 14B and 14C show the structure of another embodiment. FIG. 14B shows a state in which the trigger switch 301 is set near the upper portion of the base of the handle 302, for example, the operation unit 303. FIG. 7C is a schematic diagram illustrating a conceptual structure in a case where the image forming apparatus is provided at the rear of FIG.

For example, when the trigger switch 301 is provided below the handle portion 302, the trigger switch 301 is operated with the index finger, so that the trigger switch 301 is structured as shown in FIGS. It can be operated without difficulty by adopting a structure that pulls it up.

That is, in the first embodiment shown in FIG. 14A, the first connection rod 383 is moved through the rotary connection plate 381 by pulling up the trigger switch 301 provided on the hand handle 300 as shown by the arrow E1. Is converted into a stress that pushes the end of the second connecting rod 384 downward as indicated by an arrow E2. This stress abuts on the end of the third connecting rod 426 of the connecting pipe 400 and pushes it downward due to the connection between the handle 300 and the connecting pipe 400. The other end of the third connecting rod 426 moves the lock pin retainer 428 to pull up the lock pin 428a fixing the second pipe 440 to release the fixed state.

In the embodiment shown in FIG. 14C, the operation of the trigger switch 301 is controlled by two connecting rods (the first connecting rod 383 and the second connecting rod 383) without changing the direction of the force by the rotary connecting plate 381. (3) The connection rod 426) may be transmitted directly to the connection pipe expansion / contraction mechanism 402. Specifically, the trigger switch 301 is formed in a rod shape, the center of which is rotatably mounted in the switch hole 385, one end is exposed to the outside, the other end is positioned inside, and the other end is connected to the other end. One connecting rod 383 is attached. According to this structure, the number of parts can be reduced because the number of connecting rods can be reduced to two by eliminating the rotation connecting plate 381.

On the other hand, in the case where the trigger switch 301 is provided above the handle portion 302, the force can be easily applied by pressing with the thumb. When the trigger switch 301 is pressed in this manner, a converting means for converting the stress, for example, the rotary connecting plate 381X is newly provided on one of the handle 300 and the connecting pipe 400. For example, in the structure shown in (b), the handle connection portion 434 of the connection pipe 400 is provided with the rotation connection plate 381X, so that the force for pushing down the trigger switch 301 as shown by the arrow E3 is converted, and the claw portion is pulled up and fixed. Can be canceled.

As described above, in this embodiment, in consideration of the place where the trigger switch 301 is provided and the direction of the stress for operating the trigger switch 301, for example, the structures of the respective parts in FIG. I do. By adopting such a structure, the connecting pipe 400 expands and contracts in relation to the above-mentioned gravity and the floor surface, so that operability can be improved.

In this embodiment, a space between the first tube and the second tube during the maximum stroke of the second tube is provided between the first tube and the second tube. A sealing mechanism that maximizes the sealing effect is provided. FIGS. 15A and 15B show a first connection pipe (outer cylinder) 420 and a second connection pipe (inner cylinder) 440 of the connection pipe 400 as an example of a sealing mechanism in this embodiment. FIG. FIG. 15 is enlarged only in the radial direction from the actual size in order to facilitate understanding. In FIG. 15A, the second connection pipe 440 includes a small-diameter portion 440a, a large-diameter portion 440b provided at the rear end, and a seal portion 440e. In addition, a seal 420a corresponding to the large-diameter portion 440b is provided at the front end of the first connection pipe 420. The gap G between the first connection pipe 420 and the second connection pipe 440 is such that when the second lock switch 431 is released, the second connection pipe (inner cylinder) 440 extends smoothly by its own weight. The sliding resistance shall be given to such a degree that the ventilation loss (loss due to ventilation resistance in the pipeline due to extension of the outer and inner cylinders and leakage loss from gaps) shall not be large. In order to reduce the sliding resistance, a material such as Teflon may be provided on one surface of the outer cylinder and the inner cylinder.

On the other hand, when the second connecting pipe 440 extends to the maximum stroke position as shown in FIG. 13B, the large diameter portion 440b and the seal portion 440e come into contact with the seal 420a, and the maximum sealing effect, that is, substantially, is obtained. In this configuration, air is prevented from being sucked from the gap.

The large-diameter portion 440b of the second connection pipe 440 exerts a certain sealing effect even when the second connection pipe 440 is at an intermediate stroke position, and the first connection pipe 420 has a large diameter. Also, the second connection pipe 440 when moving the first connection pipe 420 by its own weight limits the shaft swing and guides the first connection pipe 420 to move smoothly.

As another embodiment, as shown in FIGS. 15C and 15D, the same effect can be obtained even when the second connection pipe 440 is a tapered pipe 440c and the gap G changes continuously. Can be demonstrated.

Further, the relationship between the first connection pipe (outer cylinder) 420 and the second connection pipe (inner cylinder) 440 in both embodiments may be reversed so that a seal is provided on the second connection pipe 440 side. good. That is, the first tube has a small-diameter portion provided at the distal end, and the second tube has a seal corresponding to the small-diameter portion provided at the end opposite to the mouthpiece, When the second pipe connecting pipe is extended to the maximum stroke, the small diameter portion may be in contact with the seal to substantially prevent the suction of air.

According to each of the above embodiments, a vacuum cleaner with a connecting pipe length adjusting mechanism which is compact and excellent in safety is provided.

Next, the structure of the sub handle will be described in detail with reference to FIG. FIG. 16 is an exploded perspective view showing a connected state of the sub handle and the suction hose, and FIG. 17 is a partial perspective view and a partial cross sectional view showing a structure for attaching a connecting pipe to the sub handle.

First, a connection structure between the sub handle 600 and the suction hose 200 will be described with reference to FIG. In this embodiment, the pipe structure 601a is configured to be separated from other structures. The pipe structure 601a has a main body mounting mechanism 610 for mounting to the vacuum cleaner main body 100 and the suction hose 200. And a dust passage 630 that connects the vacuum cleaner main body 100 and the suction hose 200 to each other. A tubular pipe structure mounting portion 606 for mounting to the pipe structure 601a, and a connecting pipe mounting structure 602 disposed in parallel with the pipe structure 601a via the pipe structure mounting portion 606. A separation structure 608 composed of a main connecting body 603 for connecting the connecting pipe mounting structure 602 to the pipe structure mounting portion 606 and a sub-connecting body 604 is integrally formed of resin. And the pipe structure 601a are detachable.

In this embodiment, the pipe structure mounting portion 606 is formed in a tubular shape, and the pipe structure 601a is inserted into and penetrated therein, and provided at one end of the pipe structure 601a. The body attachment mechanism 610 is attached to the hose attachment 101. The pipe structure mounting portion 606 is fixed to the inner surface of the pipe structure mounting portion 606 by a positioning protrusion 607 provided on the outer periphery of the pipe structure 601a so that the pipe structure mounting portion 606 does not come off to the suction hose side. The fitting portion 609 is provided at the bottom.

[0137] The separation structure 608 may be formed of a member that is separated into right and left and fixed with screws. Further, the pipe structure attaching portion 606 is not limited to a tubular shape, but may be any structure that can be detachably attached to the pipe structure 601a and can maintain the connected state firmly.

In this embodiment, the protrusions 611 are provided on the left and right sides of the pipe 617 projecting from one end of the hose attachment mechanism 620, and the projection 611 is rotated when the body attachment mechanism 610 is attached to the hose attachment 101. I try not to. A fixing mechanism 612 for fixing the connection between the main body mounting mechanism 610 and the hose mounting section 101 is provided on the projection 611.

The fixing mechanism 612 includes a concave portion 613 formed on the outer peripheral surface of the convex portion 611, a protective plate 614 covering the concave portion 613, a seesaw switch 615 provided in the protective plate 614, And a spring 616 that always keeps the mechanism 612 in a fixed state. The seesaw switch 615 has a convex button at one end and a fixed claw at the other end, and the protective plate 614 has a window for exposing the convex button and the fixed claw. The convex button and the fixed claw are provided by the spring 616 so as to always protrude to the outer periphery. Therefore, when the fixed button is attached to the hose mounting portion 101, the fixed claw is provided inside the hose mounting portion 101. Can be fitted and fixed in the recessed portion. To release the fitting, the convex button may be pressed.

Further, the hose mounting mechanism 620 for mounting the suction hose 200 has a structure in which a connection ring 230 provided at an end of the suction hose 200 is inserted and connected. That is, in this embodiment, the fixing ring 231 is attached to the end of the bellows hose, and the connecting ring is provided so as to be rotatable with respect to the fixing ring 231 and protrude from the fixing ring 231 in the tube axis direction. 230 is attached. The outer periphery of the connection ring 230 is formed with a locking portion 232 that always projects in the outer circumferential direction by utilizing the elasticity of the resin. The outer wall of the dust passage 630 of the hose mounting mechanism 620 is provided with the locking portion 232. A locking hole 621 that fits with the portion 232 is provided.

As a result, the connection ring 230 is inserted into the hose mounting mechanism 620, and the locking portion 232 is fitted into the locking hole 621, thereby connecting the two. According to this structure, since the suction hose 200 is rotatably attached to the sub handle 600, the twist of the suction hose 200 can be reduced. Further, in this embodiment, the fitting can be released by pushing the locking portion 232 inward from the locking hole 621, which is effective at the time of maintenance.

In this embodiment, the pipe structure 601 and another structure are separable structures. However, the pipe structure 601, the connecting pipe mounting structure 602, the main connecting body 603, and the sub-connecting body 604 and 604 may be integrally formed of resin.

According to the embodiment shown in FIG. 16, since the separation structure 608 does not impair the function as the vacuum cleaner 1 even if it is removed, the convenience in the vertical storage posture is required. If not, it can be easily removed. Further, the pipe structure 601a can be improved in versatility because the usability in the vertical storage position can be improved without a significant design change for attaching and detaching the pipe structure mounting portion 606. Can be

Next, a connection structure between the connection pipe mounting mechanism 640 and the mounting section 401 provided on the connection pipe 400 will be described with reference to FIG. In FIG. 17, as described above, the mounting portion 401 includes the convex mounting protrusion 410 provided on the back side of the connection pipe 400 and the fitting portions 411 protruding in the expansion and contraction direction and on both sides.

The fitting portion 411 is provided with a stopper portion 412 at an upper portion, and a concave groove 413 is formed from both sides of the mounting projection portion 410 to a lower side thereof, as shown in FIG. 17B. In the cross-sectional shape, both sides of the protruding portion are formed in a “T-shape”, and in the side shape, the protruding tip is formed to protrude downward.

On the other hand, the connecting pipe mounting mechanism 640 is formed with a concave rail 641 along the longitudinal direction of the connecting pipe mounting structure 602. The rail 641 is formed with a pair of guide rails 642 projecting inward along the rail 641, and the guide rails 642 fit into the concave grooves 413 to support the mounting projections 410 from both sides. In the vertical storage posture, an inclined surface 643 for guiding the mounting protrusion 410 to the rail 641 is formed on the upper side of the rail 641.

According to this structure, as shown in FIG. 17, when the mounting portion 401 is to be inserted into the connection pipe mounting mechanism 640 from above, the lower fitting portion 411a of the mounting protrusion 410 is First, it comes into contact with the inclined surface 643, is guided by the rail 641, and is further fitted into the fitting portions 411 b on both sides of the mounting protrusion 410, so that the stopper 412 is connected to the connection pipe 412. It is inserted to a position where it comes into contact with the mounting structure 602.

Therefore, when the connecting pipe mounting structure 602 is lifted upward through the sub-handle part 600, the mounting part 401 is moved vertically and horizontally by the stopper part 412 and the guide rail 642. The connection pipe 400 can be pulled up because it is held in the direction. On the other hand, when the connecting pipe 400 is to be pulled up through the hand handle 300, the fitting structure of the connecting pipe mounting mechanism 640 and the mounting portion 401 holds the weight of the electric vacuum cleaner main body 100. Therefore, the fitting can be released and the connection pipe 400 can be pulled up without raising the vacuum cleaner main body 100.

On the other hand, when the vacuum cleaner 1 in the vertical storage position is in an oblique position, the electric cleaner held by the moving means 102 is held at the fitting portion between the connecting pipe mounting mechanism 640 and the mounting portion 401. Since a part of the stress according to the weight of the machine body 100 is applied, the fitting part between the rail 641 and the fitting part 611 is distorted, and the fitting becomes difficult to be disengaged. The vacuum cleaner 1 in the oblique posture can be moved while holding the handle 300 at hand. The strength of the fitting is adjusted such that the contact surface between the rail 641 and the fitting portion 611 is increased, or the fitting of the fitting is adjusted to obtain appropriate fitting stress. Good to do. Further, the contact surface may be subjected to a surface treatment for increasing a coefficient of friction.

Next, the connection pipe position holding means 140 will be described with reference to FIG. 18A and 18B are explanatory views of the connection pipe position holding means. FIG. 18A is a side view of the vacuum cleaner in a vertical storage posture, and FIG. 18B is a sectional view taken along line AA of FIG.

In FIG. 18, in this embodiment, the connection between the vacuum cleaner main body 100 and the connection pipe 400 is sufficiently achieved by the connection between the connection pipe mounting mechanism 640 and the mounting section 401 provided on the connection pipe 400. However, in order to reduce the load on the connecting portion, a position below the connecting portion, that is, a state in which the connecting pipe 400 is attached to the sub-handle 600 in a substantially vertical posture. A pair of protrusions for holding the position below the connection pipe 400 at a position where the suction pipe 500 attached to the connection pipe 400 or the lower part of the connection pipe 400 and the upper surface of the vacuum cleaner main body 100 are in contact with each other. The connection pipe position holding means 140 comprising the portion 141 is provided.

The connection pipe position holding means 140 faces the stress in the direction of arrow Q1 shown in FIG. For example, in the vacuum cleaner in the vertical storage position shown in FIG. The load applied to the connecting portion between the mounting portion 101 and the sub handle portion 600 is not large because the portion 100 is easy to fall.

In addition, the connection pipe 400 or the suction body 500 is pressed against the upper surface of the cleaner body 100 due to the force of falling to the left (arrow Q2) in FIG. It is possible to reduce the load applied to the connecting portion of 600. However, since the force for tilting the hand handle 300 in the left-right direction (arrow Q1) is a force for rotating the connection portion between the mounting portion 101 and the sub handle portion 600 as a center, a large force is applied to the connection portion. This imposes a load and requires a robust structure to prevent this.

Therefore, in this embodiment, a pair of lateral displacement preventing members is provided at the position where the connection pipe 400 or the suction body 500 contacts the upper surface of the electric sweeper main body 100 (the topmost portion in the cleaning posture). The projection 141 is provided. This can reduce the unnecessary strength of the connecting portion and reduce the weight.

Next, a method of using the sub handle will be described with reference to FIG. FIGS. 19A and 19B are explanatory views of a state in which the vacuum cleaner 1 in the vertical storage position is moved. FIG. 19A is an explanatory view of a state in which the conventional example is lifted, and FIG. FIG. 3C is an explanatory view of a state in which the machine 1 is lifted, and FIG. 4C is an explanatory view of a state in which the vacuum cleaner 1 according to the present embodiment is moved via moving means.

First, in FIG. 19A, the conventional example generally has a structure in which the connecting pipe 400 is attached to the bottom side of the vacuum cleaner main body 100 in the vertical storage posture. In this conventional vertical storage posture, the attachment portion provided on the connection pipe 400 is directly attached to the front end of the vacuum cleaner main body 100. Therefore, when trying to lift the vacuum cleaner in the vertical storage position, the vacuum cleaner is lifted via a sub-handle provided on the bottom surface (provided below the hose mounting portion) of the vacuum cleaner main body 100. .

However, since the sub-handle is provided at a position deviated from the center of gravity of the vacuum cleaner in the vertical storage position, when the vacuum cleaner is held by the sub-handle, the electric cleaner in the vertical storage position is not used. The aircraft must be held in an oblique position. In particular, since the vacuum cleaner falls from a vertical position to an oblique position when it is lifted, the suction hose 200 obstructs the lift and is difficult to lift and balance.

On the other hand, as shown in FIG. 19 (b), the vacuum cleaner 1 according to the present embodiment is lifted up via the sub-handle 600 near the position above the center of gravity of the vacuum cleaner 1. be able to. In this case, the handle portion 660 is easy to grasp, and the vacuum cleaner main body 100 and the connection pipe 400 are separately supported on both sides in the longitudinal direction of the handle portion 660, so that it is easy to balance. Further, as shown in the drawing, the suction hose 200 can be held aside, so that the conveyance posture is good.

Further, as shown in FIG. 19 (c), in this embodiment, the user holding the handle 300 at hand holds the vacuum cleaner 1 in the vertical storage posture obliquely around the large wheel 104. The vacuum cleaner 1 can be moved using the large wheel 104 while pulling or pushing the held handle 300.

However, the conventional example has a structure in which the connection pipe 400 is attached to the bottom surface side provided with the large wheel, so that the connection pipe obstructs the movement by the large wheel 104. Further, since the conventional example has a structure in which the mounting portion of the connection pipe 400 is hooked on the vacuum cleaner main body 100 from above, the connection pipe 400 may be detached when it is pulled obliquely. However, according to this embodiment, the user can easily move the vertical storage posture by tilting the vertical storage posture obliquely via the hand handle 300.

In the case where the suction hose is provided with a power supply line or a signal line and the power supply or the like is operated with the handle at hand, or in the case where the mouthpiece 500 is provided with a rotary brush drive motor, the sub-handle and the suction hose are provided. A well-known connection terminal may be provided at a hose attachment portion of the vacuum cleaner main body or at each connection portion of the connection pipe.

[0162]

[Effect of the invention]

 ADVANTAGE OF THE INVENTION According to this invention, the length of a connection pipe can be adjusted by a simple operation, and the vacuum cleaner and the suction assembly which can fix the length can be provided.

[0163] Further, it is possible to provide a vacuum cleaner provided with a connection pipe length adjusting mechanism which is compact and excellent in safety.

[Brief description of the drawings]

FIG. 1 is an external view illustrating a storage posture of a vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the vacuum cleaner shown in FIG. 1 in a normal cleaning state.

FIG. 3 is a rear perspective view of a hand handle of the electric vacuum cleaner shown in FIG. 1;

4 is an external view of a hand handle of the vacuum cleaner shown in FIG.

FIG. 5 is an exploded view of parts of a first tube of the hand handle of the electric vacuum cleaner in FIG. 1;

FIG. 6 is a cross-sectional view of a hand handle of the vacuum cleaner of FIG. 1;

FIG. 7 is an exploded view of parts of a second tube of the vacuum cleaner of FIG. 1;

FIG. 8 is a detailed view of a right side view of a hand handle of the vacuum cleaner in FIG. 1;

FIG. 9 is a view for explaining the operation of the hand handle.

10 is an exploded view of parts of the connection pipe of the vacuum cleaner of FIG. 1;

11 is an explanatory view of the operation of the connecting pipe of the electric vacuum cleaner in FIG. 1; FIG.
(B) is a top view of the state where the connecting pipe was contracted.

FIG. 12 is a longitudinal sectional view of the vacuum cleaner of FIG. 1 in a state where a connecting pipe is contracted.

FIG. 13 is an explanatory diagram of the operation of the second lock switch in the embodiment of FIG. 1;

FIG. 14 is a view for explaining the operation of the connecting pipe telescopic switch mechanism of the hand handle and the connecting pipe in the embodiment of FIG. 1;

FIG. 15 is a diagram illustrating a relationship between a first connection pipe (outer cylinder) and a second connection pipe (inner cylinder) of the connection pipe in the present invention.

FIG. 16 is an exploded perspective view showing a connected state of the sub handle and the suction hose in the embodiment of the present invention.

FIG. 17 is a partial perspective view and a partial cross-sectional view showing a structure for attaching a connection pipe to the sub handle in the embodiment of the present invention.

FIG. 18 is an explanatory view of the connecting pipe position holding means in the embodiment of the present invention.

FIG. 19 is an explanatory view illustrating a state in which the vacuum cleaner in the vertical storage posture is moved according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 100 ... Vacuum cleaner main body, 101 ... Hose attachment part, 102 ... Running means, 103 ... Leg part, 104
... large wheels 104, 140 ... connecting pipe position holding means, 200
, Suction hose, 300, handle at hand, 301, trigger switch, 302, handle part, 305, connecting pipe connecting part, 310, first pipe, 350, second pipe, 370
... Connection pipe fixing mechanism, 371 ... Lock switch, 380
... Connection tube telescopic switch mechanism, 383.
384: second connecting rod, 400: connecting pipe, 401: mounting part, 402: connecting pipe telescopic mechanism, 403: second lock switch, 410: mounting projection, 411: fitting part, 42
0: first tubular body, 428: moving claw, 428a: steel ball, 4
40: second pipe, 500: mouthpiece, 600: connected body (sub handle), 601: pipe structure 601, 6
02: connecting pipe mounting structure, 603: main connecting body, 604 ...
Sub-connection body 605, space: 605, 610: body attachment mechanism, 620: hose attachment mechanism, 630: dust passage,
640: Connection pipe mounting mechanism, 660: Handle, 10
00: Suction body, 1500: Universal connection part, A1: Central axis of connection pipe, A2: Longitudinal direction of handle, A3: Central axis of conveyance path, A4: Central axis, A5: Central axis, A6: Central axis,
A7: Central axis, B1: Rotation axis of large wheel.

Claims (5)

[Utility model registration claims] 1. A vacuum cleaner main body having a blower for sucking dust into a dust collection chamber, a connecting body attached to a hose mounting portion of the vacuum cleaner main body, and one end attached to the connecting body. A flexible suction hose communicating with the blower, a hand handle attached to the other end of the suction hose, a connection pipe attached to the hand handle and communicating with the suction hose, and attached to the connection pipe. A hose mounting portion for detachably attaching the connecting body to a distal end of the vacuum cleaner main body, wherein the connecting pipe has a transport path formed at one end thereof detachably attached to the hand handle. A first tube connected to the first tube;
A second tube body slidably connected to the other end of the tube body and the other end connected to the mouthpiece body, wherein the first tube body is a second tube body. A fixing means for fixing the fixing means to the first tube; and a second transmitting means for releasing the fixing state of the fixing means, wherein the hand handle is provided with a trigger switch for releasing the fixing means, and an operation of the trigger switch. A first transmitting means for transmitting to the second transmitting means, wherein the first transmitting means and the second transmitting means are connected by connecting the hand handle and a connecting pipe, and the operation of the trigger switch switch The first transmission means is constituted by a link mechanism, and the link mechanism comprises the first connection rod, the rotation connection plate,
A vacuum cleaner comprising: a pair of connecting rod mounting portions provided on the rotary connecting plate and the second connecting rod. 2. The vacuum cleaner according to claim 1, wherein the first connecting rod is disposed in the upper case so as to be shifted to one side from a center so as to avoid the connecting pipe fixing mechanism. The vacuum cleaner, wherein the second connecting rod is disposed in the upper case so as to be shifted from the center to the other side, avoiding the connection pipe fixing mechanism. 3. The vacuum cleaner according to claim 1, wherein the second connecting rod is entirely formed of a straight portion and has a large-diameter portion at a tip, and when the trigger switch is not operated, the second connecting rod has a large diameter. An end face of the portion is coincident with an end face of the upper case. 4. The vacuum cleaner according to claim 2, wherein the first connecting rod has a substantially rectangular shape or a substantially L-shaped shape as a whole. 5. The vacuum cleaner according to claim 2, wherein the pair of connecting rod mounting portions enables linear movement of each of the distal end of the first connecting rod and the distal end of the second connecting rod. An electric vacuum cleaner characterized by being formed as a curved groove.