JPH06102062B2 - Vacuum cleaner - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric vacuum cleaner configured by connecting a floor suction tool to a cleaner body via a flexible hose and an extension tube.

(B) Conventional Technology As an electric vacuum cleaner of this type, a technique in which a handle is provided on a connecting pipe for connecting an extension pipe to a flexible hose and a switch is provided on the handle is disclosed in, for example, Japanese Utility Model Publication No. Sho 49-32459. And so on. A technique for housing a power control mechanism for operating the output of an electric blower in an electric vacuum cleaner by hand is disclosed in JP-A-61-6802.
As disclosed in Japanese Patent Publication No. 4, in this conventional technique, since the handle is attached to the lower part of the connecting pipe, the user has to hold the thick connecting pipe itself for cleaning, and it is difficult to grip. Moreover, it was not clear how to store the parts used in the power control mechanism in the handle.

(C) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned drawbacks, and a control circuit for an electric blower may be arranged well in a handle of a bent pipe connected to an end of a flexible hose. An object of the present invention is to provide an electric vacuum cleaner that can be housed to reduce the size of a bent pipe and improve operability and usability.

(D) Means for Solving the Problems An electric vacuum cleaner according to the present invention includes a cleaner body having a dust collector and an electric blower built therein, a flexible hose having one end connected to the cleaner body, and one end. Side is connected to the hose, and the other end has a connecting portion, and a bent pipe having a curved portion therebetween, a handle provided on the bent pipe, and a detachable connection to the connecting portion of the bent pipe. And an extension pipe connected to the extension pipe and having a rotating brush and an electric motor for driving the rotating brush, and the hose and the extension pipe are fed from the cleaner body to the electric motor of the floor suction device. And a terminal for relaying the power supply line by being detachably connected to the connection portion of the bent pipe and the extension pipe, and the handle is connected to the hose connection side from the vicinity of the curved portion of the bent pipe. For connecting part The handle includes an operating portion extending in the extension direction and a handle portion curved from the operating portion to the bent pipe side. The handle is a lower case integrally formed with the bent pipe, and a cover member closing an opening of the lower case. The handle is provided with a printed circuit board in which a control circuit component is mounted in the operation portion, and the control circuit component is provided in a component storage chamber formed between the operation portion and the hose connection side of the bent pipe. The operation part of the cover member was housed, and the operation button of the control circuit component mounted on the printed circuit board was provided, and the hook body and the terminal for holding the extension pipe were held between the lower case and the cover member. It is characterized by

(E) Operation With the above configuration, the control circuit components are stored in the component storage chamber of the lower case through the opening of the lower case formed integrally with the bent pipe, and the printed circuit board is stored in the operation part to open the lower case. Is covered with a cover member to form a handle.
Since the lower case that constitutes the handle is formed integrally with the bent pipe, the control circuit component and the printed circuit board can be easily mounted on the lower case, and the power supply line of the flexible hose, the control circuit component,
The work of connecting the printed circuit board and the terminal is easily performed, and the work of incorporating the terminal and the hook body is also easily performed. Since the component storage chamber is formed between the operation portion and the bent pipe, the handle is not enlarged and the gripping operation of the gripping portion is not hindered.

Also, the grip of the handle is gripped for cleaning.
Since the grip portion extends from the bent pipe, the operability is improved by manufacturing the grip portion to an arbitrary diameter that makes it easy to grip. Since the grip portion is formed by bending from the operation portion extending in substantially the same direction as the extension pipe to the bent pipe side, it is easy to apply a push-pull operation force, and at the same time the grip portion is gripped by the operation portion. Can be operated and the operability is improved.

(F) Embodiment An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 9.

Reference numeral 1 is a cleaner body having a dust collecting part and an electric blower built therein, and 2 is an electric floor suction tool having a rotating brush which is rotationally driven by the electric motor, and a cleaner via an extension pipe 3 and a flexible hose 4. It is connected to the upper surface side of the main body 1. The flexible hose 3 has a pair of conducting wires 6 and 6 along the inner surface of the outer skin 5, which also serve as conductive wires, and a pair of feeding wires 7 and 7 which feeds electric power to the electric motor of the floor suction tool 2. It is provided. Further, the extension pipe 3 is embedded with a pair of power supply lines 8 for supplying power to the electric motor of the floor suction tool 2.

Reference numeral 9 denotes a bent pipe having a connecting portion 11 connected to the flexible hose 4 at one end, a connecting portion 55 for detachably connecting the extension pipe 3 at the other end, and a bending portion 10 between the both ends.
have. Reference numeral 12 denotes a handle formed on the upper surface side of the bent pipe 9, which extends from the vicinity of the curved portion 10 of the bent pipe 9 toward the connecting portion 11 in a substantially extending direction of the connecting portion 55 and is connected to the connecting portion side 11. An operation unit 56 that forms a space between the operation unit 56 and the operation unit 56.
From the curved pipe 9 toward the connecting portion 11 of the bent pipe 9
And 57 are formed in a substantially triangular shape.

In the handle 12, 13 is a lower case which is integrally formed on the upper surface side of the bent pipe 9 and which opens from the upper surface to the rear side surface and has a grip portion 57 having a U-shaped cross section.
14 is provided, and a component storage chamber 15 is provided between the operation portion 57 and the bent pipe 9 on the curved portion 10 side. The lower case 13 accommodates a control unit 16 for performing on / off control and power control of the electric blower and performing on / off control of the floor suction tool 2.

In the control unit 16, 17 is a first control printed circuit board on which a large-sized control circuit component 18 such as a transformer is mounted, and 19 is a second control printed circuit component on which a display element 20 and a switch 21 are mounted and a microcomputer element and the like. The first control printed circuit board 17 is a control printed circuit board 17 so that the control circuit parts 18 are positioned and stored in the parts storage chamber 15.
The mounting surface side is housed in the component storage chamber 15, and is fixed by fixing screws 23, 23 to the board mounting ribs 22, 22 in the component storage chamber 15. Further, the second control printed circuit board 19 is housed in the operation portion 56 of the lower case 13 with its component mounting surface side facing the opening of the lower case 13, and the board mounting ribs 24, 24 are provided with screws 25, It is fixed with 25 stops. Further, 26 is an insulating sheet plate interposed between the first control printed circuit board 17 and the second control printed circuit board 19.

On the upper surface of the lower case 13 on the side of the connecting end 11, a screw-fastening rib 27 is formed in the central portion, and a square-shaped enclosure wall 28 is formed so as to surround the rib 27, and a front wall of the enclosure wall 28. Also, slit holes 29 are formed on both left and right sides of the rear wall. The lead wire 30 for the electric blower control signal from the second control printed circuit board 19 is connected to the copper wires 6, 6 outside the enclosure wall 28. Reference numerals 31 and 31 are a pair of electric wires connected to the second control printed circuit board 19 for supplying a 100V power source to the floor suction tool 2, and are guided through the slit holes 29 ... It is connected to a pair of power supply lines 7, 7 inside, and keeps an insulation distance from the connecting portion of the lead wires 30, 30.

Reference numeral 32 is a cover member covering the opening of the lower case 13, and the cover member 32 bends the fitting claw 33 at the tip to fit and lock the fitting hole portion 34 of the lower case 13 located at the tip of the pipe 9, The portion is screwed and fixed to the supporting rib 35 of the lower case 13, and the rear end is screwed and fixed to the L-shaped metal fitting 36 attached to the screw rib 27. As shown in FIG. 4, the surface of the cover member 32 displays the operation by the display elements 20 ... And has operation buttons 37 .. The switch 21 ... is pressed by pressing the button to control the control unit 16, and the electric blower is turned on / off and the output 4
The stage switching and the on / off of the electric motor of the floor suction tool 2 are controlled at hand.

Reference numeral 38 is a hook body for connecting and fixing the extension pipe 3 to the connecting portion 55 of the bent pipe 9, and as shown in FIG. It has a shaft 41 and an operating body 43 exposed from an operating hole 42 of the cover member 32, and has a claw portion 40.
Reinforcing ribs 44 are provided on the upper part from the rotating shaft 41. 46
Is a holding wall that is erected from the lower case 13 toward the information
46 has a notch hole 45 for loosely fitting and holding the rotary shaft 41 of the hook body 38 from above. 47, 47 are guide ribs formed on the back surface of the cover member 32, as shown in FIG.
It is integrally formed with the fitting claw 33 so as to be positioned on the left and right of the reinforcing rib 44. 48 is an operation hole on the back surface of the cover member 32.
42 Hook retaining ribs hung from the periphery
The rotary shaft 41 of 38 is prevented from coming off from the notch hole 45.

Then, a spring 49 is provided on the back surface of the operating body 43 of the hook body 38.
After inserting the rotary shaft 41 into the notch hole 45 of the holding wall 46 from above and fitting the fitting claw 33 of the cover member 43 to the fitting hole portion 34 of the lower case 13, the rear end of the cover member 32 is inserted. The hook body 38 and the lower case
It is held between the hook body 38 and the guide ribs 47 of the cover member 32 by the reinforcing ribs 44 of the hook body 38 entering at the time of this rotation.
Is positioned and held at a predetermined position. Incidentally, the auxiliary rib 44
Is for reinforcing the claw portion 40 of the hook body 38, and the guide ribs 47, 47 are for reinforcing the fitting claw 33 of the lower case 13, respectively.

50 is a terminal holding rib provided to surround the left and right sides of the holding wall 46, and 51 is a terminal 52 connected to the power supply line 8 of the extension tube 3.
The terminal 51 is detachably connected. The terminal 51 is held between the projecting portion 53 protruding from the holding wall 46 and the terminal holding rib 50, and the power feeding wire 54 of the second control printed circuit board 19 is connected. ing.

Thus, the user grips the grip portion 57 of the handle 12 formed by the lower case 13 and the cover member 32, and operates the operation buttons 37 ... Located on the operation portion of the handle 12 to operate the electric blower and the floor. Operate the electric motor of the suction device 2 at hand.

(G) Effect of the Invention As described above, according to the present invention, since the lower case of the handle is integrally formed with the bent pipe, the workability of assembling the control circuit component, the printed circuit board, the terminal, the hook body and the like is improved. In addition, it is possible to easily connect the power supply line of the flexible hose, the control circuit component, the printed circuit board and the terminal, and improve the workability of assembly. In addition, since the component storage chamber for storing the control circuit components is formed between the operation portion and the bent pipe, the handle does not have to be made large and the gripping operation of the gripping portion is not hindered. It can be formed by utilizing the empty space. Further, by forming the handle with an arbitrary diameter that is easy to grip, usability and push-pull operability can be improved, and the grip part can be bent from the operation part extending in substantially the same direction as the extension pipe to the bent pipe side. Since it is formed in a curved shape, the push-pull operation force can be easily applied, and the operation portion can be operated while the grip portion is gripped, and operability can be improved.

[Brief description of drawings]

Each of the drawings shows an embodiment of the present invention, FIG. 1 is a sectional view of a bent pipe, FIG. 2 is a side view of the whole, and FIG.
FIG. 4 is a sectional view taken along the line AA in FIG. 4, and FIG.
The figure is a view of the connecting end part of the bent pipe, (a) is a sectional view,
(B) is a top perspective view without the cover member, (C) is an exploded perspective view, FIG. 6 is a cross-sectional view of a connecting portion of the bent pipe and the extension pipe, FIG. 7 is a top view without the cover member, FIG. 8 is a rear view of the cover member, and FIG. 9 is a cross-sectional view of an essential part of the cover member during mounting. 2 ... Floor suction tool, 3 ... Extension tube, 4 ... Flexible hose, 6 ... Steel wire, 7 ... Power supply line, 8 ... Power supply line, 9 ...
Bent pipe, 10 …… Bending part, 11 …… Coupling part, 12 …… Grip, 13 …… Lower case, 15 …… Component storage room, 16 …… Control part, 17 …… First control printed circuit board, 18… … Control circuit parts, 19 …… Second control printed circuit board, 30 …… Lead wire, 31
...... Wire, 32 …… Cover member, 38 …… Hook body, 52 ……
Terminals, 55 …… connecting parts, 56 …… operating parts, 57 …… grip parts.

Claims (1)

[Claims] 1. A cleaner body having a dust collector and an electric blower built-in, a flexible hose having one end connected to the cleaner body, the hose connected to one end side, and the other end connected And a bent pipe having a curved portion between them,
A handle provided on the bent pipe, an extension pipe detachably connected to the connection portion of the bent pipe, and a floor suction tool connected to the extension pipe and having a rotating brush and a rotating brush driving electric motor. The hose and the extension pipe are respectively provided with power supply lines for supplying electric power from the cleaner body to the electric motor of the floor suction tool, and the supply pipes are detachably connected to the connection portion of the bent pipe and the extension pipe. A terminal for relaying the electric wire is provided, and the handle is provided with an operating portion extending in the substantially extending direction of the connecting portion from the vicinity of the bent portion of the bent pipe toward the hose connecting side, and the operating portion is bent to the bent pipe side. The grip is provided with a lower case integrally formed with a bent pipe and a cover member closing an opening of the lower case, and the grip has a print in which a control circuit component is mounted in an operation section. A control circuit component is housed in the printed circuit board, and a control circuit component is accommodated in a component storage chamber formed between the operation portion and the hose connection side of the bent pipe while accommodating the plate. The electric vacuum cleaner, wherein the operation button is provided, and a hook body for holding the extension tube and a terminal are held between the lower case and the cover member.