JPH081733Y2 - Electric vacuum cleaner - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe device for an electric vacuum cleaner, in which a floor suction tool is connected to a cleaner body via a flexible hose and an extension tube.

[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, since the handle portion is not provided with the control switch, it is not possible to control the driving state 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,
A user with a small hand has a drawback that it is difficult to grip 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,
An extension tube to which a handle body having a handle portion is fixed is proposed in Japanese Utility Model Laid-Open No. 57-166856, and it is conceivable to incorporate a control section into this handle body. Since it is formed as a separate body, it is difficult to connect the conductive wire of the flexible hose to the control section, and there is a drawback that assembly workability is poor. In addition, there is a problem that it is not convenient to use because it does not have a function of displaying the operating state at hand.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and provides an electric vacuum cleaner in which a control section and a display means can be arranged in a handle section with good operability and confirmation. Is an issue.

[0006]

According to the present invention, there is provided a cleaner main body having a dust collecting part and an electric blower built therein, a flexible hose having one end connected to the cleaner main body, and the hose provided at the one end. A bent pipe that is connected to the other end of the bent pipe and has a bent portion between the bent pipe, a handle provided on the bent pipe, and a floor suction tool connected to the extended pipe. The handle is extended from the curved portion of the bent pipe in a direction substantially parallel to the axial direction of the extension pipe, and an operating portion that forms a component storage chamber with the bent pipe; and an extension of the operating portion. A grip portion curved from the side end portion to the hose side from the extension direction of the operation portion is formed, and the handle is integrally formed with the bent pipe and extends from the lower portion of the component storage chamber and the grip portion side standing wall of the component storage chamber. A lower case that constitutes the lower part of the gripping part, and the lower case A cover member that closes the opening of the base and constitutes the upper part of the component storage chamber and the upper part of the grip part, and displays the switch for controlling the electric blower and the like and the operating state in the component storage chamber. In addition to accommodating a control unit having an element, the portion of the cover member corresponding to the operation unit is provided with an operating means for operating a switch on the grip portion side and a through hole on the extension tube side facing the display unit. And

[0007]

With the above structure, the control portion having the switch and the display element is mounted on the lower case integrally formed with the bent pipe, and the upper opening of the lower case is covered with the cover body to form the handle portion. Since the lower case of the upper opening that forms the handle part is formed integrally with the bent pipe, the control part can be easily attached to the lower case, and the connecting work between the conductive wire of the flexible hose and the control part, etc. Can be done easily. 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, a grip portion is formed on the flexible hose side of the handle, and an operating portion is formed on the extension tube side of the grip portion, and
Since the operation unit is arranged on the grip unit side and the display element is arranged on the extension tube side of the operation unit, the operation unit can be operated while the grip unit is gripped, and the operability is improved. Further, since the display element is arranged on the extension tube side of the operation means, that is, in front of the operation means, the display element is not covered by the hand even during the operation of the operation means, and the operating state is surely confirmed. be able to. In addition, since the grip portion side of the component storage chamber provided in the operation portion is partitioned by the standing wall formed integrally with the bent pipe, the force applied to the grip portion is transmitted to the operation portion side by the push-pull operation during cleaning. It is prevented by the standing wall.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below 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 skin 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 is a bent pipe having a connecting end 10 connected to one end of the flexible hose 4 and the extension pipe 3 detachably attached to the other end thereof. The handle 12 is integrally formed, and the upper opening of the lower case 11 is closed by 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. In addition, 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 to the board mounting rib 24.
It is fixed with 25 stops. 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 28 is a square-shaped enclosure wall formed so as to surround the screw retaining rib 27, and the enclosure wall 28 Slit holes 29 are formed on the left and right sides of the front wall and the rear wall, respectively, and the lead wire 30 for the electric blower control signal from the second control printed circuit board 19 is provided on the outside of the surrounding wall 28 to form the conductor wire 6. It is designed to be connected to. Also, the floor suction device 2
Second control printed circuit board 19 for supplying 100V power to
A pair of electric wires 31 connected to the
The slits 29 are guided into the enclosure wall 28 and connected to each other in the enclosure wall 28 to maintain an insulation distance between the connecting portion between the lead wire 30 and the conductive wire 6.

Reference numeral 32 denotes a cover member that covers the upper surface opening of the lower case 11, and the cover member 32 has an engaging claw 33 formed at the tip thereof.
The engaging hole 34 of the lower case 11 located at the tip of the bent pipe 9
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 fixed to the L-shaped metal fitting 36 attached to the screw fixing rib 27 by screwing. Reference numeral 37 denotes a plurality of operation buttons formed on the operation portion 13 of the cover member 32. The operation button 37 is pressed to control the control portion 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.

Reference numeral 39 denotes a hook body which is arranged at the tip of the bent pipe 9 of the operation portion 13 and connects the extension pipe 3 to the bent pipe 9. The hook body 39 is, as shown in FIG. 3 includes an engaging portion 41 that engages with the engaging protrusion 40, a rotating shaft 42, and an operating portion 44 exposed from the operating hole 43 of the cover member 32. Reinforcing ribs 45 are formed on the upper part up to 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 pressing rib that is formed so as to hang down from the peripheral edge of the operation hole 43 of the cover member 32, and prevents the hook body 39 from rising. 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
The engaging claw 40 of is also used for reinforcement.

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. Since the operation portion 13 is formed in front of the grip portion 14 and the operation button 37 is disposed on the grip portion 14 side of the operation portion 13, the operation button 37 of the operation portion 13 is held while the grip portion 14 is gripped. Can be operated easily and display body 20
Is arranged in front of the operation button 37, the operating state can be confirmed by the display unit 20 even while the operation button 37 is being operated. Further, since the upper surface of the operation portion 13 is formed to be substantially flat, a switch operated by the operation button 37.
The second control printed circuit board 19 on which the display 21 and the display 20 are mounted is arranged substantially parallel to the upper surface of the operation unit 13 to provide the display 20 and the switch 21.
The mounting height of the display body 20 and the switch 21 on the second control printed circuit board 19 can be simplified by making the mounting height of the second control printed circuit board 19 constant.

Since the cover member 32 is screwed between the hook body 39 and the first and second control printed circuit boards 17 and 19,
The force that the cover member 32 receives by the urging force of the spring 51,
Also, the deformation of the cover member 32 due to the force received by the cover member 32 due to the displacement of the hook body 39 by the extension tube 3 is not transmitted to the upper surface side of the first and second control printed circuit boards 17, 19 of the cover member 32. The positional relationship between the display body 20 or the switch 21 and the operation button 37 or the through hole 38 of the cover member 32 does not shift.

[0020]

As described above, according to the present invention, usability and push-pull operability can be improved by forming the grip portion formed on the bent pipe to have an arbitrary diameter for easy grip. Also, since the lower case of the handle is formed integrally with the bent pipe, the workability of incorporating the control unit can be improved, and the conductive wire of the flexible hose and the control unit can be easily connected. As a result, assembly workability can be improved. Further, a grip portion is formed on the flexible hose side of the handle, an operation portion is formed on the extension tube side of the grip portion, and the operation portion has an operation means on the grip portion side and a display element on the extension tube side. Since it is arranged, the operating means can be operated while holding the grip portion, and the operability can be improved. Further, since the display element is provided on the extension tube side of the operation means, that is, in front of the operation means, the display element is not covered by the hand even during the operation of the operation means, and the operation state can be surely confirmed. You can Furthermore, since the gripping portion side of the component storage chamber formed in the operating portion is partitioned by the standing wall integrally formed with the bent pipe, the force applied to the gripping portion is transmitted to the operating portion side by the push-pull operation during cleaning. It is possible to prevent the operation part from being operated by the standing wall, and it is possible to solve the inconvenience that the operation part cannot be operated due to the positional deviation between the control component arranged in the operation part and the cover.

[Brief description of drawings]

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

FIG. 2 is a top view of the bent pipe.

FIG. 3 is a cross-sectional view of a connecting portion between the bent pipe and the extension pipe.

FIG. 4 is a side view of the same.

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

FIG. 6 is an upper perspective view excluding a cover member of a connecting end portion of the bent pipe.

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

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

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]

 1 Vacuum cleaner body 3 Extension pipe 4 Flexible hose 9 Bend pipe 11 Lower case 12 Handle part 13 Operating part 14 Grip part 16 Control part 19 2nd control printed circuit board 20 Indicator 21 Switch 32 Cover member 38 Through hole

Claims (1)

[Scope of utility model registration request] 1. A cleaner body having a dust collector and an electric blower built therein, a flexible hose having one end connected to the cleaner body, the hose connected to one end, and extended to the other end side. A pipe having a connecting portion to which the pipe is connected, a bent pipe having a curved portion between the pipe, a handle provided on the bent pipe, and a floor suction tool connected to the extension pipe, the handle, An operating portion that extends from a curved portion of the bent pipe in a direction substantially parallel to the axial direction of the extension pipe and forms a component storage chamber between the bent pipe, and an extension of the operating portion from the extension side end of the operating portion. A grip portion that is curved toward the hose side from the direction, and the grip is integrally formed with the bent pipe, and the grip portion has a lower portion and a lower portion of the grip portion that extends from the grip portion side standing wall of the component storage chamber. And a lower case that constitutes the It is composed of a cover member that constitutes the upper part of the storage chamber and the upper part of the grip portion, and in the component storage chamber, a control unit having a switch for controlling the electric blower and the like and a display element for displaying the operating state is stored. , The part of the cover member that corresponds to the operating part,
An electric vacuum cleaner characterized in that an operating means for operating a switch is formed on the grip portion side, and a through hole facing the display portion is formed on the extension tube side.