JP2529452Y2 - Electric vacuum cleaner - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner in which a floor suction device is connected to a vacuum cleaner main body via a flexible hose and an extension pipe, and more particularly to an improvement in a pipe device thereof.

[0002]

2. Description of the Related Art A conventional vacuum cleaner having a handle portion as a part of a connecting pipe for connecting an extension pipe to a flexible hose is known from Japanese Patent Laid-Open No. 61-68024. I have. However, in this configuration, the control switch is not provided on the handle portion, and the driving state cannot be controlled at hand while holding the handle portion.
There is a drawback that it is not easy to use. In addition, since the handle portion is formed in a part of the connecting pipe and has a relatively large diameter,
There is a drawback that it is difficult for a user with a small hand to grasp, and the usability is poor.

As a solution to the former disadvantage, a flexible hose in which a switch box having a built-in control switch is formed at the end thereof is known from Japanese Utility Model Publication No. 51-46824. In addition, the cleaning operation must be performed by gripping the flexible hose or the extension tube, so that it is difficult for a user with a small hand to grip, and the usability is poor.

Therefore, as a solution to the disadvantage,
Japanese Patent Laid-Open Publication No. Sho 57-166856 proposes an extension pipe having a handle body having a handle portion fixed thereto, and it is conceivable to incorporate a control unit into this handle body. Since it is formed separately, it is difficult to connect the conductive wire of the flexible hose to the control unit, and there is a disadvantage that the assembling workability is poor. ,

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a vacuum cleaner in which a control unit can be disposed in a handle with good operability.

[0006]

According to the present invention, there is provided a cleaner body having a built-in dust collector and an electric blower, a flexible hose having one end connected to the cleaner body, and the hose being provided at one end. A bent pipe having a connection portion connected to the extension pipe on the other end side and having a curved portion therebetween, a handle provided on the bent pipe, and a floor suction tool connected to the extension pipe An operating portion extending substantially in the direction in which the connecting portion extends from the vicinity of the curved portion of the bent pipe toward the hose connection portion, and a handle extending from the operating portion to the bent pipe side in the extending direction of the operating portion. And a grip portion that is extended,
The handle comprises a lower case integrally formed with a curved pipe, and a cover member for closing an opening of the lower case. In a space surrounded by the lower case and the cover member, the operation unit is electrically driven. A control unit for controlling the blower is provided, and an operation unit for operating the control unit is provided in a portion corresponding to the operation unit of the cover member, and the cover member is moved down between the grip unit and the operation unit. It is characterized by being screwed to the case.

[0007]

According to the above construction, the control section is mounted on the lower case integrally formed with the bent pipe, and the opening of the lower case is covered with a cover to form the handle section. Since the lower case constituting the handle portion is formed integrally with the bent pipe, the control unit can be easily attached to the lower case, and the connection work between the conductive wire of the flexible hose and the control unit can be easily performed. I can do it.
In addition, the cleaning is performed by gripping the handle portion. Since the handle portion extends from the bent pipe, the operability can be improved by manufacturing the handle portion to an arbitrary diameter that is easy to grip. .

Further, since the cover member is screw-fixed to the lower case between the grip portion and the operation portion, the influence of the force applied to the grip portion so as to be twisted with the cleaning operation is exerted on the operation portion side of the cover member. Without being transmitted, deformation of the cover member on the operation section side is prevented, and the displacement of the control section and the operation means is prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

Reference numeral 1 denotes a vacuum cleaner body having a dust collecting section and an electric blower, and 2 is an electric floor suction tool having a rotary brush which is driven by an electric motor, through an extension pipe 3 and a flexible hose 4. And connected to the upper surface side of the cleaner body 1. The flexible hose 4 is provided with a pair of conductive wires 6 along the inner surface of the outer cover 5 and a pair of power supply wires 7 for supplying power to the electric motor of the floor suction tool 2 in a spiral shape. Further, a pair of electric wires 8 for supplying power to the electric motor of the floor suction tool 2 are embedded in the extension pipe 3.

Reference numeral 9 denotes a bent pipe having a connecting end 10 connected to one end of the flexible hose 4 and the other end attached to the extension pipe 3 so as to be detachable. The handle portion 12 is formed by closing the upper opening of the lower case 11 with a cover member 32 described later. The handle portion 12 is an extension pipe 3 to a bent pipe 9.
An operating portion 13 extending substantially in the same direction as the connecting direction of the operating portion 13 and having a substantially flat upper surface;
And a gripping portion 14 reaching the connection end 10 of the second member, and is formed in a substantially triangular shape.

Reference numeral 15 denotes a component storage chamber formed in a space surrounded by the outer surface of the bent pipe 9 in the operation section 13, the lower case 11, and a cover member 32 described later. The component storage chamber performs on / off and power control of the electric blower. And a control unit 16 for controlling on / off of the floor suction tool 2. The control unit 16
Is equipped with a large control circuit component 18 such as a transformer.
It has a control printed circuit board 17 and a second control printed circuit board 19 on which display operation parts such as a display element 20 and a switch 21 and a microcomputer element are mounted. The mounting surface side of the control circuit component 18 is stored in the component storage chamber 15 so that the component 23 is positioned and stored in the component storage chamber 15.
Stopped and fixed. The second control printed circuit board 19
Is positioned and stored in the component storage chamber 15 with its component mounting surface facing the opening side of the lower case 11, and is screwed into the board mounting rib 24.
25 stops are fixed. 26 is the first control printed circuit board 17
And an insulating sheet plate interposed between the second control printed circuit board 19 and the second control printed circuit board 19.

Reference numeral 27 denotes a screw fixing rib formed on the upper surface of the lower case 13 on the connecting end 10 side, and reference numeral 28 denotes a square-shaped enclosing wall formed so as to surround the screw fixing rib 27. A slit hole 29 is formed on each of the left and right sides of the front wall and the rear wall, and the lead wire 30 for the electric blower control signal from the second control printed circuit board 19 is connected to the conductive wire 6 outside the surrounding wall 28. Is to be connected to. Further, the floor suction tool 2
2nd control printed circuit board 1 to supply 100V power to
The pair of electric wires 31 and the pair of power supply lines 7 connected to the conductor 9 are guided from the slit hole 29 into the surrounding wall 28 and connected to each other within the surrounding wall 28, and the connection between the lead wire 30 and the conductive wire 6 is performed. The insulation distance from the part is maintained.

A cover member 32 covers the upper surface opening of the lower case 11, and the cover member 32 is formed with an engagement claw 33 formed at the tip end.
And the engagement hole 34 of the lower case 11 located at the end of the pipe 9 line.
It is locked to. The cover member 32 is a support rib 35 formed between the control unit 16 of the lower case 11 and a hook body 39 described later.
The rear end is screwed and fixed to an L-shaped bracket 36 attached to the screw fixing rib 27. Reference numeral 37 denotes a plurality of operation buttons formed on the operation unit 13 of the cover member 32. The operation button 37 is pressed to control the control unit 16 to turn on / off and output the electric blower.
Step switching and on / off of the electric motor of the floor suction tool 2 are controlled at hand. 38 is an operation section of the cover member 32
The display element 20 is loosely supported by a plurality of through-holes formed at the distal end side of the bend pipe 9 from the operation button 37 of the thirteen.
20 is used to display the operating state.

Numeral 39 designates a hook which is disposed at the tip of the bent pipe 9 of the operating portion 13 and connects the extension pipe 3 to the bent pipe 9. The hook 39 is, as shown in FIG. 3 has a claw 41 that engages with the engagement projection 40, a rotating shaft 42, and an operating portion 44 exposed from an operating hole 43 of the cover member 32. Reinforcing ribs 45 are formed on the upper part reaching 42. Reference numeral 46 denotes a holding wall standing upward from the lower case 11, and forms a cutout hole 47 having an upper opening for loosely fitting and holding the rotation shaft 42 from above. Reference numeral 48 denotes a pair of left and right guide ribs integrally formed with an engagement claw 33 formed at the tip of the cover member 32, and the hook body 39.
The hook body 39 is positioned by abutting on the left and right sides of the reinforcing rib 45 formed at the bottom. Reference numeral 49 denotes a hook holding rib which is formed so as to hang down from the periphery of the operation hole 43 of the cover member 32 so as to prevent the hook body 39 from floating. Reference numeral 50 denotes an opening formed at the end of the lower case 11, and reference numeral 51 denotes a spring inserted between the back surface of the operation portion 44 of the hook body 39 and the lower case 11. Are urged in a direction protruding into the bent pipe 9 from the opening 50 to engage with the engaging projections 40 of the extension pipe 3.

Then, the rotary shaft 42 is inserted into the back surface of the operating portion 44 of the hook body 39 via a spring 51 so that the rotary shaft 42 is formed in the cutout hole 47 of the holding wall 46.
After fitting the engagement claws 33 of the cover member 32 into the engagement holes 34 of the lower case 11, the cover member 32
The hook body 39 is held between the cover member 32 and the lower case 11 by rotating the rear end of the cover member 32 downward.
The hook body 39 is positioned at a predetermined position by being guided by the reinforcing rib 45 of the hook body 39 entering between 8, 48. The reinforcing rib 45 is a claw portion of the hook body 39.
41, and the guide ribs 48, 48
Are also used to reinforce the engagement claws 40.

Reference numeral 52 denotes a terminal holding rib provided so as to surround the left and right sides of the holding wall 46. Reference numeral 53 denotes a power supply terminal plate for detachably connecting a power supply pin 54 connected to the electric wire 8 of the extension tube 3. The board 53 is held by a projection 55 projecting from the holding wall 46, and the power supply wire of the second control printed circuit board 19 is held.
56 are connected.

Thus, the user can use the lower case 11 and the cover member.
The gripper 14 of the handle portion 12 formed by 32 is gripped, and the operation button 37 located on the upper surface of the operation portion 13 is operated to operate the electric blower and the electric motor of the floor suction tool 2 at hand. is there. The operation unit 13 is formed in front of the grip unit 14, and the operation button 37 is disposed on the grip unit 14 side of the operation unit 13. Can be easily operated and the display element
Since the operation button 20 is disposed in front of the operation button 37, the operation state can be confirmed by the display element 20 even during the operation of the operation button 37. Further, since the upper surface of the operation section 13 is formed substantially flat, the second control printed circuit board 19 on which the switch 21 operated by the operation button 37 and the display element 20 are mounted is mounted.
Is disposed substantially parallel to the upper surface of the operation unit 13, and the mounting height of each display element 20 and switch 21 with respect to the second control printed circuit board 19 is fixed to the second control printed circuit board 19 of the display element 20 and switch 21. Can be simplified.

At the time of the cleaning operation, as the gripper 14 is gripped and the floor suction tool 2 is moved in the front, rear, left and right directions, a twisting force is applied to the gripper 14 and the cover member 32 is moved to the lower case 11. However, since the cover member 32 is screw-fixed to the lower case 11 between the operating portion 13 and the grip portion 14,
The deformation of the cover member 32 on the grip portion 14 side is not transmitted to the operation portion 13 side, and a positional relationship between the display element 20 or the switch 21 and the operation button 37 or the through hole 38 of the cover member 32 occurs. Nothing.

[0020]

As described above, according to the present invention, the usability and the push-pull operability can be improved by forming the handle portion formed on the curved pipe to an arbitrary diameter that is easy to grasp. Further, since the lower case of the handle portion is formed integrally with the bent pipe, the workability of assembling the control portion can be improved, and the connection between the conductive wire of the flexible hose and the control portion can be easily performed. For example, the assembly workability can be improved. Further, since the grip portion is formed on the flexible hose side of the handle portion, the operation portion is formed on the extension tube side from the grip portion, and the cover member is screw-fixed to the lower case between the operation portion and the grip portion. In addition, it is possible to prevent the deformation of the cover member on the grip portion side due to the cleaning operation from being transmitted to the operation unit side, and to prevent the displacement between the control unit and the operation unit of the operation unit.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a sectional view of a connecting portion between the bent pipe and the extension pipe.

FIG. 3 is a side view of the whole.

FIG. 4 is a top view of the bent pipe.

FIG. 5 is a sectional view of a connection end portion of the bent pipe.

FIG. 6 is a top perspective view of the connection end portion of the bent pipe excluding a cover member.

FIG. 7 is an exploded perspective view of a connection end portion of the bent pipe.

FIG. 8 is a top view of a connecting portion between the bent pipe and the extension pipe, excluding a bar member.

FIG. 9 is a rear view of the cover member.

FIG. 10 is a cross-sectional view of a main part of the cover member during installation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Floor suction tool 3 Extension pipe 4 Flexible hose 9 Curved pipe 11 Lower case 12 Handle part 13 Operation part 14 Holding part 16 Control part 21 Switch 32 Cover member 37 Operation button

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-309233 (JP, A) JP-A-63-52561 (JP, U) JP-A-62-33755 (JP, U) JP-A-61-33755 47969 (JP, U) JP-A 52-83369 (JP, U) JP-A 49-32459 (JP, U) JP-A 46-10454 (JP, Y1) JP-A 62-17021 (JP, Y2) Jikken Sho 51-46824 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A cleaner body including a dust collecting unit and an electric blower, a flexible hose having one end connected to the cleaner body, and the hose connected to one end and extending to the other end. A pipe having a connection portion to which the pipe is connected, a bent pipe having a curved portion therebetween, a handle provided on the bent pipe, and a floor suction tool connected to the extension pipe, wherein the handle includes: An operating portion extending from the vicinity of the curved portion of the bent pipe toward the hose connection portion in a substantially extending direction of the connecting portion, and a grip portion extending from the operating portion to the bending pipe side from the extending direction of the operating portion. The handle comprises: a lower case integrally formed with a bent pipe; and a cover member for closing an opening of the lower case. The operation is performed in a space surrounded by the lower case and the cover member. A control section for controlling the electric blower is installed in the section In addition, an operation means for operating a control unit is provided in a portion corresponding to an operation unit of the cover member, and the cover member is screw-fixed to a lower case between a grip unit and the operation unit. Vacuum cleaner to do.