JP7182546B2 - Vacuum cleaner connection hose and vacuum cleaner with the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a connection hose for a vacuum cleaner and a vacuum cleaner having the same.

As a conventional electric vacuum cleaner, Patent Document 1 discloses a vacuum cleaner body containing an electric blower, a connection hose detachably connected to the vacuum cleaner body, an extension pipe detachably connected to the connection hose, A canister-type vacuum cleaner is disclosed with a suction mouth body detachably connected to an extension pipe.

In the vacuum cleaner of Patent Document 1, the connection hose includes a flexible hose portion having a hose base end portion connected to the vacuum cleaner main body, a handle portion attached to the hose tip portion of the flexible hose portion, An operation part having an operation button provided on the handle part, and an electric wiring part for transmitting a command signal from the operation button of the operation part to the main body of the vacuum cleaner. It is configured as follows so that it can be rotated to

The flexible hose portion has an annular electrode mounting groove provided on the outer peripheral surface of the tip portion of the hose.
In addition, the handle portion includes a connection pipe portion (handle handle lower member) in which the hose tip of the flexible hose portion is rotatably fitted, and a handle body portion (handle handle) having an operating portion coupled to the connection pipe portion. upper and middle members), and a contact cover (connection terminal pressing member) provided between the handle body and the connection tube.
The electric wiring portion includes an annular conductor provided in the electrode mounting groove of the flexible hose, and a contact electrode attached to the contact lid of the handle portion so as to be slidable on the annular conductor in the circumferential direction. have

JP 2013-59525 A

As in Patent Document 1, the conventional canister-type vacuum cleaner has a structure in which a contact cover to which a contact electrode is attached is attached to the handle main body with a screw. , the weight of the handle held by the user increases, leading to a decrease in operability.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems. The purpose is to provide a vacuum cleaner.

Thus, according to the present invention, a flexible hose portion having a hose proximal end portion connected to a vacuum cleaner main body containing an electric blower, and a handle portion attached to the hose distal end portion of the flexible hose portion. , an operation portion having an operation button provided on the handle portion; and an electric wiring portion for transmitting a command signal from the operation button of the operation portion to the cleaner body,
The flexible hose portion has a first electrode attachment portion provided on the outer peripheral surface of the hose tip portion, and the handle portion is rotatably fitted to the hose tip portion of the flexible hose portion. a connecting pipe portion connected to the handle body portion, a handle body portion having the operating portion and coupled to the connecting pipe portion, and a second electrode attachment portion provided on the handle body portion;
The electric wiring portion includes a first annular electrode attached to the first electrode attachment portion of the flexible hose, and the second electrode of the handle portion so as to be slidable in a circumferential direction to the first electrode. A connection hose for a vacuum cleaner is provided having a second electrode attached to the attachment.

According to another aspect of the present invention, there is provided a vacuum cleaner comprising a vacuum cleaner body containing an electric blower, and the connection hose connected to the cleaner body.

According to the connecting hose of the electric vacuum cleaner of the present invention, in the structure in which the handle portion and the flexible hose portion are relatively rotatably connected, the handle body portion of the handle portion is provided with the second electrode attachment portion, A second electrode, which slides in the circumferential direction of the annular first electrode on the flexible hose portion side, is attached to the second electrode attachment portion. With this configuration, the conventionally required contact lid and screws for attaching it to the handle are omitted, so that the connection hose can be assembled more easily, and the handle held by the user is lighter and easier to operate. improves.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing Embodiment 1 of a vacuum cleaner provided with a connection hose of the present invention; 4 is a left side view showing the handle portion of the connection hose of Embodiment 1. FIG. Fig. 3 is a left sectional view of the connection hose of Fig. 2; 3A is a perspective view and FIG. 3B is a plan view showing a state in which a handle main body portion of the handle portion according to Embodiment 1 is removed; FIG. (A) is a perspective view as seen from below, and (B) is a bottom view showing the lower housing of the handle body portion of the handle portion in Embodiment 1. FIG. 3A is a perspective view of the lower housing of the handle main body of the handle in Embodiment 1, and FIG. 3B is a plan view. FIG. FIG. 4A is a perspective view from below and FIG. 4B is a bottom view showing a lower housing with a second electrode of the handle main body of the handle in Embodiment 1; FIG. 4 is a cross-sectional view showing a state in which the second electrode is attached to the second electrode attaching portion by thermal welding according to the first embodiment; FIG. 10 is a cross-sectional view showing a state in which the second electrode is attached to the second electrode attaching portion by insert molding according to Embodiment 2;

(Embodiment 1)
<Configuration of electric vacuum cleaner>
FIG. 1 is a perspective view showing Embodiment 1 of a vacuum cleaner provided with a connection hose of the present invention.
As shown in FIG. 1, the vacuum cleaner 1 of Embodiment 1 includes a cleaner body 10, a connection hose 20 detachably connected to the cleaner body 10, and an extension pipe detachably connected to the connection hose 20. 30 and a suction port body 40 detachably connected to the extension pipe 30 .

The cleaner body 10 includes a driving device 11 containing an electric blower and a control board, and a cyclone-type dust cup unit 12 detachably attached to the driving device 11 .
Inside the driving device 11, a power cord for supplying electric power from a commercial power supply to the vacuum cleaner 1 is wound so as to be pulled out. A battery may be provided in the driving device 11 instead of the power cord.
Further, the dust cup unit 12 is provided with a connection portion 12a to which a hose base end portion 21a ₁ of a flexible hose portion 21 of the connection hose 20, which will be described later, is detachably connected.

The connection hose 20 includes the flexible hose portion 21, a handle portion 22 attached to the hose tip portion _21a2 of the flexible hose portion 21, and two operation buttons 23a and 23b provided on the handle portion 22. and an electric wiring unit (not shown) that transmits a command signal from the operation button of the operation unit 23 to the cleaner main body 10 side and the suction port body 40 side.
The operation button 23a is connected to a switch for switching ON and OFF of the power supply, and the operation button 23b is connected to a switch for switching the strength of the suction force.
Details of the connection hose 20 will be described later.

The extension pipe 30 is slidably inserted into a first pipe portion 31 having a proximal end portion 31a detachably connected to the handle distal end portion 22a of the handle portion 22 of the connection hose 20, and a distal end portion 31b of the first pipe portion 31. and an electric wiring portion (not shown) provided along the first and second pipes 31 and 32 .

The suction port body 40 includes a suction port main body 41 containing a motor and a rotating brush (hereinafter referred to as a “power brush”) that rotates with the motor, and a connecting pipe portion 42 connected to the suction port main body 41 via a joint. , and an electric wiring portion (not shown).

When cleaning using this electric vacuum cleaner 1, the plug of the power cord is inserted into a commercial power source and the operation button 23a is pressed to turn on the power, which drives the electric blower and rotates the power brush. The dust on the surface to be cleaned is sucked while being scraped into the suction port body 40 , and the dust passes through the extension pipe 30 and the connection hose 20 and is collected in the dust cup unit 12 .

<Composition of connection hose>
2 is a left side view showing the handle portion of the connection hose of Embodiment 1, and FIG. 3 is a left sectional view of the connection hose of FIG. 4A and 4B are a perspective view and a plan view, respectively, showing a state in which the handle body portion of the handle portion according to the first embodiment is removed. 5A and 5B are a perspective view and a bottom view, respectively, showing the lower housing of the handle body portion of the handle portion according to the first embodiment. 6A and 6B are a perspective view and a plan view, respectively, showing the lower housing of the handle body portion of the handle portion according to the first embodiment. 7A and 7B are a perspective view and a bottom view, respectively, showing the lower housing with the second electrode of the handle body portion of the handle portion according to Embodiment 1. FIG. Moreover, FIG. 8 is a cross-sectional view showing a state in which the second electrode is attached to the second electrode attaching portion by thermal welding according to the first embodiment.

[Flexible hose part]
As shown in FIGS. 1 to 3, the flexible hose portion 21 of the connection hose 20 has a hose body 21a having a plurality of (in this case, four) electric wires 24a forming an electric wiring portion spirally wound on the outer surface. , a connection member 21b provided at the hose base end portion 21a ₁ of the hose body 21a, a cylindrical member 21c having a base end portion inserted into the hose tip portion 21a ₂ of the hose body 21a, and outside the cylindrical member 21c A cylindrical first electrode attachment portion 21d attached to the outer peripheral surface of the exposed tip portion, and a plurality (in this case, three) of annular electrodes constituting an electrical wiring portion attached to the first electrode attachment portion 21d. and a first electrode 24b. The outer surface of the hose body 21a is covered with an insulating film covering the plurality of electric wires 24a.

A plurality of (in this case, four) recessed circumferential grooves are provided at equal intervals in the axial direction on the outer peripheral surface of the first electrode mounting portion 21d. Then, the first electrode 24b is formed by winding and fixing a belt-shaped metal plate in a plurality of (in this case, three) recessed circumferential grooves.
A recess 21c ₁ is provided in a portion of the outer peripheral surface of the cylindrical member 21c joined to the first electrode attachment portion 21d, and the first electrodes 24b and the electric wires 24a are connected in the recess 21c ₁ . They are electrically connected by lead wires (not shown).

[Handle part]
The handle portion 22 has a resin connection pipe portion 22A into which the hose tip portion _21a2 of the flexible hose portion 21 is rotatably fitted, and an operation portion 23, and is made of resin coupled to the connection pipe portion 22A. a second electrode mounting portion 22C provided in the handle body portion 22B and exposed on the inner peripheral surface side of the connecting tube portion 22A; and an electric wiring portion fixed to the second electrode mounting portion 22C. and a plurality of (in this case, three) second electrodes 24c.

《Connecting pipe part》
As shown in FIGS. 1, 3, 4A and 4B, the connection tube portion 22A has a base end opening 22Aa ₁ into which the hose tip portion 21a ₂ of the flexible hose portion 21 is inserted. It has an end portion 22Aa, a tip portion 22Ab having a tip opening _22Ab1 into which the base end portion 31a of the extension pipe 30 is inserted, and an intermediate portion 22Ac between the base end portion 22Aa and the tip portion 22Ab.

The distal end portion of the cylindrical member 21c of the flexible hose portion 21 is inserted from the proximal end portion 22Aa to the intermediate portion 22Ac of the connecting pipe portion 22A, and the bent boundary between the intermediate portion 22Ac and the distal end portion 22Ab of the connecting pipe portion 22A is formed. The end portion of the cylindrical member 21c abuts against the portion and is airtightly attached. The distal end portion of the cylindrical member 21c is prevented from coming off from the connecting pipe portion 22A by a retaining piece 22D screwed to the connecting pipe portion 22A. relative rotation is allowed.

A second electrode 24c attached to the second electrode attachment portion 22C is attached to the first electrode attachment portion 21c on the surface of the intermediate portion 22Ac of the connection pipe portion 22A on the side of the connection with the handle body portion 22B. A hole portion 22Ac ₁ exposed to the first electrode 24b side is formed.
A hole portion 22Ab ₁₁ is formed in the distal end portion 22Ab of the connecting pipe portion 22A so that the locking claw 22Ea of the locking member 22E protrudes into the distal end portion 22Ab. The locking claw 22Ea of the locking member 22E is provided on the outer peripheral surface of the proximal end portion 31a of the extension pipe 30 when the proximal end portion 31a of the extension pipe 30 is inserted into the distal end opening _22Ab1 of the connecting pipe portion 22A. It is detachably locked with the locking recess that is not engaged.

Further, a pair of hole portions 22Ab are provided at the tip portion 22Ab of the connecting pipe portion 22A.₁₂A rib having a These pair of hole portions 22Ab₁₂is the tip opening 22Ab of the connecting tube portion 22A ₁When the base end portion 31a of the extension pipe 30 is inserted into the extension pipe 30, a pair of convex connection terminals (pin-type terminals) (not shown) provided on the base end portion 31a are inserted to connect a pair of concave connection terminals described later and an electrical connection terminal. contact. The pair of convex connection terminals of the extension pipe 30 are components of the electrical wiring portion of the extension pipe 30, and the pair of concave connection terminals of the connection tube portion 22A are components of the electrical wiring portion of the connection hose 20. be.

《Handle body》
As shown in FIG. 3, the handle body portion 22B has a lower case 22Ba that covers the upper surface of the connecting pipe portion 22A on the side of the handle body portion 22B that is coupled to the handle body portion 22B, and an upper case 22Bb that covers the upper surface of the lower case 22Ba.

As shown in FIGS. 3, 5(A)-(B) and 6(A)-(B), the lower case 22Ba includes a base end portion 22Aa, an intermediate portion 22Ac and a tip end portion 22Ab of the connection tube portion 22A. It has a covering rear end portion 22Ba ₁ , an intermediate portion 22Ba ₂ and a front end portion 22Ba ₃ , and a bridge portion 22Ba ₄ that is gripped by the user's hand is provided from the rear end portion 22Ba ₁ to the intermediate portion 22Ba ₂ .

In addition, in the lower case 22Ba, the second electrode attachment portion 22C is provided on the lower surface of the intermediate portion 22Ac on the joint side with the connecting pipe portion 22A.
The second electrode mounting portion 22C is formed integrally with the lower case 22Ba, and is attached to a rib in order to mount a plurality of (in this case, three) second electrodes 24c constituting the electrical wiring portion at regular intervals in the front-rear direction. It has four square mounting recesses 22Ca with downward openings that are partitioned by the . A pair of positioning protrusions 22Ca ₁ are formed integrally with each mounting recess 22Ca.

As shown in FIGS. 7A to 7B and FIG. 8, the second electrode 24c includes a fixed plate portion 24c ₁ having a pair of holes 24c ₁₁ through which the pair of positioning protrusions 22Ca ₁ are inserted; A pair of protruding pieces 24c ₂ bent downward from the left and right ends of the plate portion 24c ₁ , and a sliding convex portion 24c provided on the lower surface of the distal end portions of the pair of protruding pieces 24c ₂ bent in directions separating from each other. ₃ and

In the case of the first embodiment, the fixed plate portion 24c1 is brought into close contact with the _mounting recessed portion 22Ca while the pair of positioning convex portions _22Ca1 of the second electrode mounting portion 22C are inserted into the pair of hole portions _24c11 . The second electrode 24c is attached to the second electrode attachment portion 22C by welding 24c ₁ to the attachment recess 22Ca. In FIG. 8, reference numeral 24w indicates a welded portion formed between the fixed plate portion 24c ₁ and the mounting recess 22Ca. The fixing plate portion 24c ₁ can be welded to the mounting recess 22Ca by thermal welding, ultrasonic welding, or the like. The fixed plate portion 24c ₁ may be attached to the lower case 22Ba by melting the convex portion Ca ₁ with heat.

As shown in FIGS. 3, 5(A) to 5(B) and 7(A) to (B), in the lower case 22Ba, the front end portion 22Ba ₃ is externally connected with the push button portion 22Eb of the locking member 22E. A hole 22Ba ₃₁ is provided to expose to.
When the locking member 22E is assembled between the connection pipe portion 22A and the lower case 22Ba with screws, the push button portion 22Eb is inserted between the connection pipe portion 22A and the push button portion 22Eb of the locking member 22E. A coil spring 22F is attached to elastically bias it outward.

Further, on the lower surface of the front end portion _22Ba3 of the lower case 22Ba, the pair of terminals electrically connected to the pair of convex connection terminals of the extension pipe ₃₀ inserted into the tip opening 22Ab1 of the connection tube portion 22A are provided. A pair of left and right terminal mounting portions 22Ba ₃₂ for mounting the concave connection terminals 24d are integrally molded.
The recessed connection terminal 24d is formed in a clip shape for sandwiching the projecting connection terminal (pin-shaped terminal) of the extension pipe 30. The recessed connection terminal 24d is accommodated in the terminal attachment portion _22Ba32 formed of ribs and is welded by heat or ultrasonic welding. etc. are welded and installed.
The concave connection terminal 24d of the handle portion 22 and the convex connection terminal of the extension pipe 30 may be replaced with each other.

As shown in FIG. 3, the upper case 22Bb is assembled onto the lower case 22Ba with screws to cover the lower case 22Ba from the rear end 22Ba ₁ to the front end 22Ba ₃ and to provide a grip for the handle body 22B. compose the department.
Further, the upper case 22Bb is formed with a hole portion 22Bb ₁ into which a button holder 23c of the operation portion 23, which will be described later, is fitted.

The operation unit 23 includes the two operation buttons 23a and 23b, the button holder 23c holding the two operation buttons 23a and 23b, the circuit board 23d supported by the ribs of the lower case 22Ba, and the circuit board. It has two switch parts 23e and 23f provided in 23d.
The button holder 23c has a slit formed in its bottom to function as a leaf spring. When the operation buttons 23a and 23b are pressed, the switches 23e and 23f are pressed through the bottom plate and released. The operation buttons 23a and 23b are returned by leaf springs.

The electrical wiring portion includes the electric wire 24a, the first and second electrodes 24b and 24c, the recessed connection terminal 24d, and a first lead wire (not shown) that connects the second electrode 24c and the circuit board 23d of the operation portion 23. , and a second lead wire (not shown) that connects the recessed connection terminal 24d and the circuit board 23d.

The first lead wire has, for example, two lead wires that electrically connect the front two second electrodes 24c of the plurality of second electrodes 24c to the circuit board 23d of the operation unit 23, respectively.
The second lead wire includes, for example, a lead wire that electrically connects one recessed connection terminal 24d to the second second electrode 24c from the front, and a lead wire that electrically connects the other recessed connection terminal 24d to the rear second electrode 24c. and lead wires that connect to the

The handle portion 11 is assembled by soldering the first lead wires to the circuit board 23d assembled to the lower case 22Ba and the fixing plate portions 24c ₁ of the two second electrodes 24c, and connecting the pair of recessed connection terminals 24d and 24c. The second lead wire is soldered to the fixed plate portion 24c ₁ of the second electrode 24c, and the lower case 22Ba is screwed to the connection tube portion 22A assembled to the cylindrical member 21c of the flexible hose portion 21. After that, the upper case 22Bb to which the button holder 22Bb ₁ having the operation buttons 23a and 23b is attached is attached to the lower case 22Ba with screws. As a result, the pair of sliding protrusions _24c3 of each second electrode 24c physically come into contact with each first electrode 24b on the flexible hose portion 21 side.

According to the structure and assembly of the handle portion 11, the second electrode attachment portion 22C is provided on the lower case 22Ba of the handle body portion 22B, and the first electrode 24b on the flexible hose portion 21 side slides in the circumferential direction. Since the second electrode 24c is attached to the second electrode attachment portion 22C, the conventionally required contact lid and screws for attaching it to the handle portion are omitted. As a result, the assembly workability of the connection hose 20 is improved, and the handle portion 11 held by the user is lightened to improve operability.

(Embodiment 2)
FIG. 9 is a cross-sectional view showing a state in which the second electrode according to Embodiment 2 is attached to the second electrode attachment portion by insert molding.
In Embodiment 1, the case where the second electrode 24c is attached to the second electrode attachment portion 22C by heat welding (FIG. 8) is illustrated, but the second electrode 24c is attached to the second electrode attachment portion 22C by heat welding. It is not limited.

In the second embodiment, as shown in FIG. 9, the second electrode 124c is attached to the second electrode attachment portion 122C by insert molding. In this case, the fixing plate portion 124c ₁ and the pair of protruding pieces 124c ₂ are partially embedded in the second electrode mounting portion 122C of the lower case 122Ba of the handle body portion, but the fixing plate portion 124c ₁ is partially embedded in the lead. Leave exposed to the outside for soldering the wires. Other configurations of the second embodiment are the same as those of the first embodiment.
Although the inner surface of the fixing plate portion _124c1 is exposed to the outside in FIG. 9, the outer surface may be exposed.

(Embodiment 3)
In the first embodiment, the case where the second electrode attachment portion 22C is integrally formed with the lower case 22Ba of the handle main body portion 22B is exemplified. Good (not shown).

In this case, a plurality of pairs of slits are formed in the connecting pipe portion 22A at the position where the second electrode mounting portion 22C is provided, and after inserting the cylindrical member 21c of the flexible hose portion 21 into the connecting pipe portion 22A, A pair of projecting pieces 24c 2 (see FIG. 8) of each second electrode 24c are inserted from the outside into each slit of the two-electrode mounting portion _22C . Then, the fixed plate portion 24c ₁ of each second electrode 24c is welded to the outer surface of the second electrode mounting portion _22C . are electrically connected (soldered) through lead wires.

In the third embodiment, since welding of the second electrode and wiring of lead wires are added during the assembly process, the work efficiency of assembly is lower than that of the first embodiment, but weight reduction can be expected by reducing the number of parts. can.

(Embodiment 4)
Although the connection hose that can be electrically connected to the suction port body containing the power brush is exemplified in Embodiment 1, the suction port body applicable to the connection hose of the present invention is not limited to this.
Other suction ports that can be applied to the connection hose of the present invention include, for example, a suction port body that incorporates a motor-driven drive wheel (power wheel) that assists the running of the suction port, and an LED light provided at the tip. Examples include an air inlet body that can irradiate light forward, a power brush, a power wheel, and an air inlet body in which two or more of LED lights are combined.

(Other embodiments)
1. In Embodiments 1 to 3, the case where the second electrode is attached to the second electrode attachment portion by welding or insert molding is exemplified, but the present invention is not limited to this. Attachment using an attachment member is also possible. Welding or insert molding, which does not use a mounting member, is preferable because it is advantageous in terms of assembly workability and weight reduction.

2. In the connection hose of Embodiment 1, the case where the electrical wiring part has a concave or convex connection terminal that can be electrically connected to the convex or concave connection terminal provided on the extension pipe was exemplified, but the present invention is similar to this. However, the electrical wiring portion may be one in which the concave or convex connection terminals are omitted. In this case, the suction mouth body applicable to the connection hose of the present invention is a suction mouth body other than a suction mouth body requiring electric power such as a power brush, a power wheel, and an LED light. A suction port body having a rotating brush (turbine brush) and a suction port body not having a rotating brush are applicable.

(summary)
A connection hose for a vacuum cleaner of the present invention comprises a flexible hose portion having a hose base end portion connected to a vacuum cleaner body containing an electric blower, and a hose tip portion of the flexible hose portion attached to the flexible hose portion. a handle portion, an operation portion having an operation button provided on the handle portion, and an electric wiring portion for transmitting a command signal from the operation button of the operation portion to the main body of the cleaner,
The flexible hose portion has a first electrode attachment portion provided on the outer peripheral surface of the hose tip portion,
The handle portion includes a connection pipe portion into which the hose tip portion of the flexible hose portion is rotatably fitted, a handle body portion having the operating portion and coupled to the connection pipe portion, and the handle. a second electrode mounting portion provided on the main body;
The electric wiring portion includes a first annular electrode attached to the first electrode attachment portion of the flexible hose, and the second electrode of the handle portion so as to be slidable in a circumferential direction to the first electrode. and a second electrode attached to the attachment.

The connection hose of the vacuum cleaner of the present invention may be configured as follows, and these may be combined as appropriate.
(1) the handle main body has the second electrode mounting portion integrally formed on the inner surface side coupled to the connection pipe;
The connecting tube portion may have a hole that exposes the second electrode attached to the second electrode attachment portion to the first electrode attached to the first electrode attachment portion.
According to this configuration, the connecting tube portion of the handle portion is attached to the hose tip portion of the flexible hose portion to which the first electrode is attached, and the second electrode is attached to the second electrode attachment portion of the handle body portion of the handle portion. After attachment, the handle body can be assembled to the connection tube. As a result, the connection hose can be assembled in a state in which the second electrode portion is in contact with the first electrode portion reliably and easily without being caught by the hose tip portion of the flexible hose portion. In other words, when the tip of the hose to which the first electrode is attached is inserted into the connection pipe with the second electrode disposed on the inner surface of the connection pipe, the tip of the hose tends to get caught on the second electrode. According to the configuration (1), such catching can be avoided.

(2) The second electrode may be attached to the second electrode attaching portion by welding or insert molding.
According to this configuration, an attachment member for attaching the second electrode to the second electrode attachment portion is not required, so assembly workability and weight reduction are further improved.

(3) the handle portion has a handle tip portion connectable via an extension pipe;
The electrical wiring part has a concave or convex connection terminal electrically connectable to a convex or concave connection terminal provided on the extension pipe,
The handle body portion at the handle tip portion has a terminal attachment portion for attaching a concave or convex connection terminal of the electrical wiring portion,
A concave or convex connection terminal of the electrical wiring portion may be attached to the terminal attachment portion.
According to this configuration, the suction port body containing a motor-driven rotating brush (power brush) can be electrically connected to the connection hose via the extension pipe, and the power brush removes dust from the surface to be cleaned. It becomes possible to clean while raking. ) It is also possible to electrically connect a drive wheel driven by a motor (power wheel), a suction port housing an LED light, etc. to the connection hose via an extension pipe.
In addition, by attaching the concave or convex connecting terminal of the electrical wiring portion to the terminal attachment portion by welding or insert molding, no attachment member is required, so that assembly workability and weight reduction are further improved.

It should be noted that the disclosed embodiments should be considered as examples and not restrictive in all respects. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1 vacuum cleaner 10 vacuum cleaner main body 20 connection hose 21 flexible hose portion 21a ₁ hose base end portion 21a ₂ hose tip portion 21d first electrode attachment portion 22 handle portion 22A connection tube portion 22Ac ₁ hole portion 22a handle tip portion 22B Handle body portion 22Ba ₃₂ Terminal attachment portion 22C Second electrode attachment portion 23 Operation portion 23a, 23b Operation button 24b First electrode 24c Second electrode 24d Recessed connection terminal 24w Welding portion 40 Suction port body

Claims (5)

A flexible hose portion having a hose proximal end connected to a vacuum cleaner body containing an electric blower, a handle portion attached to the hose tip portion of the flexible hose portion, and a handle portion provided an operation unit having an operation button; and an electric wiring unit for transmitting a command signal from the operation button of the operation unit to the cleaner main body,
The flexible hose portion includes a hose body having flexibility, a cylindrical member having a proximal end portion inserted into the hose distal end portion of the hose body, and a distal end portion exposed to the outside of the cylindrical member. a first electrode mounting portion provided on the outer peripheral surface;
The handle portion has a connection pipe portion into which the tip portion of the cylindrical member of the flexible hose portion is rotatably fitted, and a handle body portion having the operation portion and coupled to the connection pipe portion. and a second electrode mounting portion provided on the handle body,
The electric wiring portion includes an annular first electrode attached to the first electrode attachment portion of the flexible hose portion, and the second electrode portion of the handle portion slidably circumferentially on the first electrode. a second electrode attached to the electrode attachment portion;
The handle main body has an upper case and a lower case, the upper case covering the upper surface of the lower case, and the lower case integrally forming the second electrode on the inner surface side coupled to the connection pipe. having a mounting part,
The connection pipe part is provided between a base end portion into which the cylindrical member is inserted from the tip side portion, a tip portion located on the side opposite to the base end portion, and between the base end portion and the tip end portion. and the distal end portion of the cylindrical member inserted into the proximal end portion abuts against the boundary portion between the intermediate portion and the distal end portion of the connecting pipe portion. ,
The intermediate portion is a portion facing the distal end side portion of the cylindrical member inserted into the proximal end portion, and the second electrode attached to the second electrode attachment portion is attached to the first electrode. having a hole exposed to the side of the first electrode attached to the attachment,
The base end portion is a portion facing all of the base end side portions of the cylindrical member inserted into the base end portion via the hose body,
A connection hose for a vacuum cleaner , wherein the hole is provided in the vicinity of the boundary portion between the intermediate portion and the tip portion . 2. The connection hose according to claim 1, wherein said operating portion is provided on the upper surface of said lower case. The connection hose according to claim 1 or 2, wherein the second electrode is attached to the second electrode attaching portion by welding or insert molding. The handle portion has a handle tip portion connectable to the suction port via an extension pipe,
The electrical wiring part has a concave or convex connection terminal electrically connectable to a convex or concave connection terminal provided on the extension pipe,
The handle body portion at the handle tip portion has a terminal attachment portion for attaching a concave or convex connection terminal of the electrical wiring portion,
The connection hose according to any one of claims 1 to 3, wherein the concave or convex connection terminal of the electric wiring portion is attached to the terminal attachment portion. A vacuum cleaner comprising a vacuum cleaner body incorporating an electric blower, and the connection hose according to any one of claims 1 to 4 connected to the vacuum cleaner body.

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