JPH06311951A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To obtain a vacuum cleaner in which a flexible hose can be separated from a grip. CONSTITUTION:In a connecting part to a flexible hose 4 of a grip 1 having a handy operating part 3, an annular projection 15 of the same shape as a pipe shape of the connecting part side of a clearance nozzle 13 is formed, and in the vicinity of the annular projection 15, plugs 16a, 16b to be connected to a power source are provided. Also, in a connecting part to the grip 1 of the flexible hose 4 for connecting electrically and mechanically the grip 1 to a vacuum cleaner main body 10, an annular groove 19 to which the annular projection 15 can be fitted and attached, a first power source connection terminal consisting of jacks 21a, 21b which can be connected to plugs 16a, 16b at the time when the annular projection is fitted and attached into the annular groove 19, and a second power source connection terminal consisting of conductors 20a, 20b arrange in a bottom part of the annular groove 19 are provided, and also, to the whole periphery of an end edge part of the connecting part side pipe of the clearance nozzle 13, a metallic band 22 is attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner capable of separating a flexible hose for electrically and mechanically connecting a vacuum cleaner body and a grip from the grip.

[0002]

2. Description of the Related Art FIG. 6 is a side view showing a structure of a connecting portion between a grip and a flexible hose of a conventional vacuum cleaner. In the figure, reference numeral 1 is a grip having an extension pipe 2 connected to the tip thereof, and a hand operation section 3 for driving and operating an electric blower in an electric vacuum cleaner body (not shown) is provided on the upper surface of the grip. Reference numeral 4 is a flexible hose having a power supply line extending in a spiral shape and integrally connected to the rear end of the grip 1.

In such a structure, the grip 1 is electrically and mechanically connected to the main body of the vacuum cleaner via the flexible hose 4.

[0004]

The conventional vacuum cleaner has the following problems.
As described above, since the flexible hose 4 is integrally connected to the grip 1, even when only one of the grip 1 and the flexible hose 4 is damaged or malfunctions,
There was a problem that both parts had to be replaced or service was required.

In view of the above points, the present invention has an object to provide an electric vacuum cleaner capable of separating a flexible hose from a grip.

[0006]

An electric vacuum cleaner according to the present invention has a gap at a connection portion with a flexible hose of a grip having a hand operation portion for driving and operating an electric blower in an electric vacuum cleaner body. Forming an annular projection having the same shape as the pipe shape on the connecting portion side of the cleaning nozzle, providing a plug for power supply connection in the vicinity of the annular projection, and electrically and mechanically connecting the grip to the vacuum cleaner body. An annular groove into which the annular protrusion can be fitted, at a connection portion of the flexible hose with the grip,
A first power supply connecting terminal composed of a jack connectable to the plug when the annular projection is fitted into the annular groove; and a second power supply connecting terminal composed of a conductor arranged at the bottom of the annular groove. The metal band is provided, and a metal band is attached to the entire circumference of the end edge portion of the connection side pipe of the gap nozzle.

Further, the electric vacuum cleaner according to the present invention has an annular protrusion formed at one end thereof which can be fitted in the annular groove on the flexible hose side, and the first protrusion on the flexible hose side is provided in the vicinity of the annular protrusion. A plug that can be connected to the power supply connection terminal is provided, and an annular groove into which the grip-side annular projection can be fitted at the other end, and a grip-side plug when the grip-side annular projection is fitted into the annular groove And an extension hose which is provided with a jack that can be connected to, has flexibility between the both ends, and is electrically and mechanically connected by a hose having a conductor on its peripheral wall.

Further, in the vacuum cleaner according to the present invention, a lamp for illumination is provided at the suction side end of the gap nozzle, and an annular projection which can be fitted in the annular groove on the flexible hose side is formed at the other end. A plug that can be connected to the first power source connection terminal on the flexible hose side in the vicinity of the annular projection, a hand operation switch for driving and operating an electric blower in the vacuum cleaner body, And a switch for a lighting lamp.

[0009]

In the present invention, after the first power supply connection terminal of the flexible hose and the grip plug are aligned, the annular groove of the flexible hose is fitted to the annular protrusion of the grip. When pressed, these flexible hoses and grips are electrically and mechanically connected.

Further, when the flexible hose is pulled out from the grip and the pipe on the connecting portion of the gap nozzle is pushed into the annular groove of the flexible hose, the metal band on the nozzle side of the gap is annular groove of the flexible hose. To a second power supply connection terminal therein, and these are electrically and mechanically connected.

Further, after aligning the first power source connection terminal of the flexible hose with the plug of the extension hose, the annular groove of the flexible hose and the annular projection of the extension hose are fitted to each other. When pressed, the flexible hose and extension hose are electrically and mechanically connected, and after the extension hose jack and grip plug are aligned, the extension hose annular groove is aligned with the grip annular shape. The extension hose and the grip are electrically and mechanically connected by fitting and pressing the protrusion. The electric vacuum cleaner in which the hose portion is extended by the extension hose facilitates cleaning of a place where the main body cannot move (for example, stairs).

Further, after the first power source connection terminal on the flexible hose side and the plug of the gap nozzle with the illumination lamp are aligned, the annular groove on the flexible hose side and the illumination lamp are attached. By fitting and pressing the annular projection of the gap nozzle, the flexible hose and the gap nozzle with the illumination lamp are electrically and mechanically connected. Since the gap nozzle with the illumination lamp can generally illuminate a dark gap with the lamp, cleaning can be performed neatly rather than by groping.

[0013]

【Example】

Example 1. The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is a cross-sectional view showing an exploded side view of a connection portion between a flexible hose and a grip / gap nozzle of an electric vacuum cleaner according to a first embodiment of the present invention. FIG. Equivalent circuit diagram, FIG. 3 is a side view showing a state where the grip and the flexible hose are connected, FIG. 4 is a perspective view of the grip, and FIG. 5 is a side view showing a state where the gap nozzle and the flexible hose are connected. It is a figure, in each figure, the same reference numerals are given to the same parts as the conventional one,
The description is omitted. In each drawing, 10 is a main body of an electric vacuum cleaner, 11 is a motor of an electric blower installed in the main body 10, 12 is a power supply, 13 is a nozzle for gap, 14 is a grip 1 of the flexible hose 4 and a nozzle for gap. It is a connection part with 13.

The grip 1 is provided with an annular projection 15 having the same shape as the connecting portion side pipe of the gap nozzle 13 at the connection with the flexible hose 4, and further in the vicinity of the annular projection 15 on the rear end face thereof. Power supply connection plugs 16a and 16b are provided, and a release button 17 of a restraint mechanism (not shown) that restrains the flexible hose 4 is provided above the plugs 16a and 16b.

The connection portion 14 of the flexible hose 4 with the grip 1 and the nozzle 13 for gap is formed of a tubular body having a flange 18, and an annular groove into which the annular projection 15 of the grip 1 can be fitted. 19 is formed, a second power supply connecting terminal composed of conductors 20a and 20b is provided at the bottom of the annular groove 19, and the flange 18 is provided with the plug of the grip 1 when the annular projection 15 is fitted into the annular groove 19. 16a, 16
There is provided a first power supply connecting terminal composed of jacks 21a and 21b connectable to b.

Further, the gap nozzle 13 is covered with a metal band 22 over the entire circumference of the pipe end edge portion of the connection portion with the flexible hose 4.

Reference numeral 23 in FIG. 2 is a contact point of a switch of the hand-side operation portion 3 of the grip 1, and 14 is a contact point of a switch provided on the main body 10 side of the vacuum cleaner.

The vacuum cleaner of the present embodiment having the above-mentioned structure has the jacks 21a and 21b which are the first power source connection terminals of the flexible hose 4 and the plugs 16a and 16 of the grip 1.
After aligning with b, the annular groove 19 of the flexible hose 4 is fitted into the annular protrusion 15 of the grip 1 and pressed, and the flexible hose 4 and the grip 1 are shown in FIG. As such, they are electrically and mechanically connected.

When the flexible hose 4 is pulled out from the grip 1 and the pipe on the connecting portion side of the nozzle 13 for gap is pushed into the annular groove 19 of the flexible hose 4, the nozzle 13 for gap is formed.
The metal band 22 on the side is connected to the conductors 20a and 20b which are the second power source connection terminals in the annular groove 19 of the flexible hose 4, and the flexible hose 4 and the gap nozzle 13
As shown in FIG. 5, they are electrically and mechanically connected. Turning on / off of the power source when the flexible hose 4 and the gap nozzle 13 are connected is performed by a switch on the main body 10 side, as shown in FIG.

Example 2. FIG. 6 is a side view showing a state in which an extension hose of a vacuum cleaner according to a second embodiment of the present invention is connected between a grip and a flexible hose, and FIG. 7 is a connecting portion between the extension hose and the flexible hose. A cross-sectional view showing the side view by disassembling,
FIG. 8 is an electrically equivalent circuit diagram of these connecting portions. In each drawing, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. In each drawing, reference numeral 30 denotes an extension hose having flexibility and a conductor on its peripheral wall, which is a connecting portion 1 of the flexible hose 4.
4 and the grip 1 are electrically and mechanically connected. The extension hose 30 has an annular protrusion 31 formed at one end thereof that can be fitted into the annular groove 19 on the flexible hose 4 side.
1 to the end of the conductor 2 of the bottom of the annular groove on the side of the flexible hose 4
No. 0a, 20b, a second power supply connecting terminal connectable to a third power supply connecting terminal 32a, 32b, and a jack 21a on the side of the flexible hose 4 near the annular protrusion 31. , 21b, and a fourth power supply connecting terminal composed of plugs 33a, 33b connectable to the first power supply connecting terminal. Further, the extension hose 30 has an annular projection 15 on the grip 1 side at the other end.
An annular groove 34 into which the annular groove 34 (see FIG. 1) can be fitted is formed, a fifth power source connecting terminal including conductors 35a and 35b is provided at the bottom of the annular groove 34, and the flange 36 portion is provided with the inside of the annular groove 34. Grip 1 when fitting the annular projection 15 to the
Jacks 37a connectable to the plugs 16a, 16b of
A sixth power supply connecting terminal 37b is provided.

In this embodiment, the jacks 21a and 21b which are the first power source connecting terminals of the flexible hose 4 and the plug 3 which is the fourth power source connecting terminal of the extension hose 30.
After the alignment with 3a and 33b, the annular groove 19 of the flexible hose 4 and the annular protrusion 31 of the extension hose 30 are fitted and pressed against each other, so that the flexible hose 4 and the extension hose 30 And are electrically and mechanically connected.

Further, the jack 37a of the extension hose 30,
37b and the plugs 16a and 16b of the grip 1 are aligned with each other, and then the annular groove 34 of the extension hose 30 is fitted into the annular projection 15 (see FIG. 1) of the grip 1 and pressed against the extension hose 30. And the grip 1 are electrically and mechanically connected. In this way, the extension hose 30
The vacuum cleaner with the hose extended by the main body 10
It will be easier to clean the places where you can't move (such as stairs).

Example 3. FIG. 9 is a perspective view showing a state in which an illumination lamp-equipped gap nozzle of an electric vacuum cleaner according to a third embodiment of the present invention is connected to an extension hose, and FIG. 10 is a perspective view of an illumination-lamp gap nozzle. FIG. 11 is a vertical cross-sectional view of a nozzle for a gap with an illumination lamp, and FIG. 12 is an electrical equivalent circuit diagram of each connecting portion. In each drawing, the same parts as those in the second embodiment are designated by the same reference numerals, The description is omitted. In each drawing, reference numeral 40 is a nozzle for gap having a lamp 41 for illumination provided at the front end on the suction side, and is fitted in an annular groove on the flexible hose side (in this embodiment, the annular groove 34 of the extension hose 30) at the rear end. A ring-shaped protrusion 42 that can be fitted is formed, a metal band 43 is attached to the end edge portion of the ring-shaped protrusion 42 over the entire circumference, and the jacks 37 a and 37 b of the extension hose 30 are provided near the ring-shaped protrusion 42. The plugs 44a and 44b connectable to the sixth power supply connection terminal are provided. Further, the gap nozzle 40 has a switch 4 for driving the motor 11 of the electric blower at an upper position of the peripheral surface of the flange.
5 and a switch 46 for turning on the lamp 41.

In this embodiment, the sixth power supply connecting terminal consisting of the jacks 37a, 37b of the extension hose 30 and the plug 44a of the gap nozzle 40 with the lamp 41,
After the alignment with 44b is performed, the annular groove 34 of the extension hose 30 and the annular protrusion 42 of the gap nozzle 40 are fitted and pressed against each other, whereby the extension hose 30 and the gap nozzle 40 are electrically and electrically connected. Mechanically connected. Lamp 41
Since the gap nozzle 40 with a mark can generally illuminate a dark gap with the lamp 41, cleaning by groping is not necessary,
It can be cleaned cleanly.

[0025]

As described above, according to the present invention, the grip and the flexible hose can be separated from each other. Therefore, in the case where the grip or the flexible hose is damaged or malfunctions. By separating the grip from the flexible hose, only the part on the failed side needs to be replaced or serviced, which improves maintainability. Further, since the gap nozzle can be directly connected to the tip of the flexible hose, the usability is light and the workability is improved. Further, since the hose portion can be extended by the extension hose, it becomes easy to clean the place where the cleaner body cannot move (such as stairs).
Further, a lamp for illumination is provided at the suction side end of the gap nozzle, and a hand operation switch for driving and operating the electric blower in the electric vacuum cleaner body and a switch for the lamp are provided at the other end. Therefore, it is easy to use, and it is possible to illuminate a dark space with a lamp in general.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an exploded side view of a connection portion between a grip and a nozzle for gap and a flexible hose of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is an electrical equivalent circuit diagram of a connection portion of the first embodiment.

FIG. 3 is a side view showing a state in which the grip and the flexible hose of the first embodiment are connected.

FIG. 4 is a perspective view of the grip of the first embodiment.

FIG. 5 is a side view showing a state in which the gap nozzle and the flexible hose of the first embodiment are connected.

FIG. 6 is a side view showing a state in which the extension hose of the electric vacuum cleaner according to the second embodiment of the present invention is connected between the grip and the flexible hose.

FIG. 7 is a cross-sectional view showing an exploded side view of a connecting portion between the extension hose and the flexible hose of the second embodiment.

FIG. 8 is an electrical equivalent circuit diagram of a connection portion of the second embodiment.

FIG. 9 is a perspective view showing a state in which an illumination lamp-equipped gap nozzle of an electric vacuum cleaner according to a third embodiment of the present invention is connected to an extension hose.

FIG. 10 is a perspective view of a gap nozzle with an illumination lamp according to a third embodiment.

FIG. 11 is a vertical cross-sectional view of a gap nozzle with an illumination lamp according to a third embodiment.

FIG. 12 is an electrical equivalent circuit diagram of a connection portion of the third embodiment.

FIG. 13 is a side view showing a configuration of a connecting portion between a grip and a flexible hose of a conventional electric vacuum cleaner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Grip 3 Hand operation part 4 Flexible hose 10 Vacuum cleaner main body 13,40 Gap nozzle 15, 31, 42 Annular protrusion 16a, 16b, 33a, 33b, 44a, 44b Plug 19,34 Annular groove 20a, 20b Conductor (Second power supply connection terminal) 21a, 21b, 37a, 37b Jack (first power supply connection terminal) 22 Metal band 30 Extension hose 41 Lamp 45 Hand operation switch 46 Lamp switch

Claims (3)

[Claims] 1. A ring having the same shape as the pipe on the connecting portion side of the nozzle for gap, at the connecting portion with the flexible hose of the grip having the hand operation portion for driving and operating the electric blower in the main body of the electric vacuum cleaner. A protrusion is formed, a plug for power supply is provided in the vicinity of the annular protrusion, and a connection portion of the flexible hose electrically and mechanically connecting the grip to the main body of the vacuum cleaner is connected to the grip. A first ring comprising an annular groove into which the annular protrusion can be fitted, and a jack connectable to the plug when the annular protrusion is fitted into the annular groove.
And a second power supply connecting terminal made of a conductor arranged at the bottom of the annular groove, and a metal band is provided on the entire circumference of the edge of the connecting side pipe of the gap nozzle. An electric vacuum cleaner characterized by being applied. 2. A plug which is formed at one end thereof with an annular projection that can be fitted in an annular groove on the flexible hose side and which is connectable to the first terminal for power supply connection on the flexible hose side in the vicinity of the annular projection. With the provision of an annular groove into which the grip-side annular projection can be fitted at the other end, and a jack connectable to the grip-side plug when the grip-side annular projection is fitted into the annular groove, The electric vacuum cleaner according to claim 1, further comprising an extension hose which is flexible between the both ends and electrically and mechanically connected by a hose having a conductor on a peripheral wall. 3. A lamp for illumination is provided at the suction-side end of the gap nozzle, and an annular protrusion is formed at the other end that can be fitted in an annular groove on the flexible hose side. A plug connectable to the first power supply connection terminal on the flexible hose side,
The electric vacuum cleaner according to claim 1, further comprising a switch for hand operation for driving and operating an electric blower in the main body of the electric vacuum cleaner, and a switch for the illumination lamp.