JPH081732Y2 - 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 Conventionally, in an electric vacuum cleaner, a part of a connecting pipe for connecting an extension pipe to a flexible hose is used as a handle portion, which is known from JP-A-61-68024. ing. However, in this configuration, since the extension pipe is connected to the connection pipe by taper connection, the connection state between the extension pipe and the connection pipe may be loosened or disengaged during cleaning, which is disadvantageous in terms of usability. Further, since the handle portion is formed in a part of the connecting pipe and has a relatively large diameter, it is difficult for a user with a small hand to grasp and there is a disadvantage that the convenience of use is poor.

As a solution to the former drawback, a flexible hose is provided with a switch box at the end thereof which has a hook mechanism and a control switch for engaging and disengaging the extension pipe in a detachable manner. -46824 publication,
Even in this configuration, the flexible hose or the extension tube must be gripped to perform the cleaning operation, and 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 is fixed is proposed in Japanese Utility Model Laid-Open No. 57-166856, and it is conceivable to incorporate a hook mechanism and a control section into this handle body. Since it is formed separately from the body, it is difficult to connect the conductive wire of the flexible hose to the control section and to incorporate the hook mechanism, and there is a drawback that assembly workability is poor.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide an electric vacuum cleaner in which a control part, a hook mechanism and the like can be incorporated in a handle part with good assemblability. .

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a cleaner main body having a dust collector and an electric blower built therein, a flexible hose having one end connected to the cleaner main body, and the hose provided at 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 includes an operating portion extending from the curved portion of the bent pipe in a direction substantially parallel to the axial direction of the extension pipe, and the hose side from the extension side end of the operating portion with respect to the extension direction of the operating portion. The handle includes a lower case that is integrally formed with a bent pipe and a cover member that closes an opening of the lower case. And a cover member that is swingably supported between the cover member and the cover member. A hook body is provided, and a hook portion that projects in and out of the bent pipe and is detachably engaged with the extension pipe is provided at one end side of the hook body, and an outside is provided from an operation hole formed in the cover member at the other end side. Forming a pressing operation portion exposed to the inside, and providing a urging means for urging the hook body in a direction in which the claw portion bends into the pipe, and a control portion for controlling the electric blower in the operation portion. And the operation means for operating the control unit is provided at a portion corresponding to the operation unit of the cover member, and the cover member is fixed to the lower case between the hook body and the control unit. And

[0007]

With the above construction, the hook body and the control portion are attached to the lower case integrally formed with the bent pipe, the upper opening of the lower case is covered with the cover member, and the lower case and the cover member are formed into the hook body. The handle part is configured by screwing with the control part. Since the lower case of the upper opening that forms the handle is integrally formed with the bent pipe, the hook body and the control unit can be easily attached to the lower case, and the conductive wire of the flexible hose and the control unit can be easily connected. Connection work can be done easily.

Further, the handle is gripped for cleaning, but since the handle is extended from the bent pipe, the handle is manufactured to have an arbitrary diameter that is easy to grip, thereby improving operability. can do. Since the cover member is screw-fixed to the lower case between the hook body and the control unit, the elastic body for urging the hook body tends to deform the cover member, and the force received from the extension pipe with which the hook body engages. The effect of the force of the hook body to deform the cover member due to the like is not transmitted to the control unit side of the cover member, the deformation of the control unit side of the cover member is prevented, and the control unit and the cover member are Prevent misalignment of.

[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 denotes 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, and a lower case 11 is integrally formed on the upper surface side. The cover member 32, which will be described later, opens the opening of the lower case 11.
Is closed to form the handle portion 12. The handle 12
Is an operating portion 13 extending substantially in the same direction as the connecting direction of the extension pipe 3 to the bent pipe 9 and having a substantially flat upper surface, and a connecting end 10 of the bent pipe 9 curved from the operating portion 13. Gripping part
14 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 components such as a display element 20 and a switch 21 and a microcomputer element are mounted. The first control printed circuit board 17 has a control circuit component 18. The mounting surface side of the control circuit component 18 is housed in the component housing chamber 15 so that the components are positioned and housed in the component housing chamber 15, and the plurality of board mounting ribs 22 are provided with screws 23.
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 11 on the connecting end 11 side, and 28 is a square-shaped enclosure wall formed so as to surround the screw retaining rib 27. 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
A pair of electric wires 31 connected to the printed circuit board 19 for supplying a 100V power source and the pair of power supply wires 7 are guided from the slit holes 29 into the enclosure wall 28 and are connected to each other in the enclosure wall 28. The insulation distance between the lead wire 30 and the connecting portion of the conductive wire 6 is maintained.

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 fitted and supported by a plurality of through-holes formed in 13 to display an operating state.

Reference numeral 39 is a tip portion of the bent pipe 9 of the operation portion 13,
That is, a hook body is provided at a connecting portion to which the extension pipe 3 is connected and connects the extension pipe 3 to the bent pipe 9. The hook body 39 is engaged with the extension pipe 3 as shown in FIG. Protrusion 40
Has a claw portion 41 that engages with, a rotating shaft 42, and a pressing operation portion 44 exposed from the operation hole 43 of the cover member 32, the upper portion from the claw portion 41 to the rotating shaft 42. Reinforcing ribs 45 are formed. 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 the engaging claw 33 formed at the tip of the cover member 32, and positions the hook body 39 by abutting on the left and right of the reinforcing rib 45 formed on the hook body 39. ing. 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. 50 is the lower case 11
An opening formed at the tip, 51 is an operating portion of the hook body 39.
44 A spring inserted between the back side and the lower case 11,
By this spring 51, the claw portion 41 of the hook body 39 is opened 50
It is adapted to be engaged with the engaging projection 40 of the extension pipe 3 by being biased in a direction projecting into the bent pipe 9.

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.
While gripping the grip portion 14 of the grip portion 12 formed by 32,
The operation button 37 located on the upper surface of the operation unit 13 is operated to operate the electric blower and the electric motor of the floor suction tool 2 at hand. The operation portion 13 is formed in front of the grip portion 14,
Since the operation button 37 is arranged on the side of the grip portion 14 of the operation portion 13, the operation button of the operation portion 13 in the state of gripping the grip portion 14
The operation buttons 37 can be easily operated and the display 20 is arranged in front of the operation buttons 37.
The operating state can be confirmed on the display unit 20 even during the operation of. Further, since the upper surface of the operation unit 13 is formed to be substantially flat, the second control printed circuit board 19 on which the switch 21 operated by the operation button 37 and the display body 20 are mounted is attached to the operation unit.
13 Arrangement of the display bodies 20 and switches 21 on the second control printed circuit board 19 with the mounting heights of the display bodies 20 and the switches 21 fixed on the second control printed circuit board 19 being kept substantially parallel to each other. It can be simplified.

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 handle portion formed on the bent pipe to have an arbitrary diameter for easy gripping. Also, since the lower case of the handle part is formed integrally with the bent pipe, it is possible to improve the workability of assembling the control part and the hook body, and it is easy to connect the conductive wire of the flexible hose to the control part. As a result, it is possible to improve the assembly workability. Further, since the handle portion is composed of the lower case and the cover member, and the cover member is screwed to the lower case between the hook body and the control portion, the deformation of the cover member on the hook body side is transmitted to the control portion side. It is possible to prevent the positional deviation between the control unit and the cover member without causing the above problem.

[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 sectional view of a connecting portion between the bent pipe and the extension pipe.

FIG. 3 is a side view of the same.

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 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 Operation part 14 Grip part 16 Control part 19 2nd control printed circuit board 20 Indicator 21 Switch 32 Cover member 35 Support rib 38 Through hole 39 hook body

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 side, 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 extending from the curved portion of the bent pipe in a direction substantially parallel to the axial direction of the extension pipe, and a grip portion curved from the extension side end of the operating portion to the hose side from the extension direction of the operating portion. At the same time, the handle is composed of a lower case integrally formed with the bent pipe and a cover member that closes an opening of the lower case, and the connecting portion has an intermediate portion between the lower case and the cover member. A hook that is movably supported is provided, and the hook is A claw portion that appears in and out of the bent pipe and engages with the extension pipe in a detachable manner, and a pressing operation portion exposed to the outside from an operation hole formed in the cover member at the other end side of the , A biasing means for biasing the hook body in a direction in which the claw portion projects into the bent pipe is provided, and in the operation portion, a control portion for controlling the electric blower is disposed, and at the same time, the cover member of the cover member is provided. An electric vacuum cleaner characterized in that an operating means for operating a control unit is provided at a portion corresponding to the operation unit, and the cover member is fixed to a lower case between the hook body and the control unit.