JPH09117395A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a cleaner with body from a hose handling part and lighten the weight of the hose so as to improve operativity by eliminating wiring embedded in the hose without letting an infrared radiation transmission part in the hose handling part face to the cleaner main body and even when a user is interposed between the hose handling part and the cleaner main body. SOLUTION: A vacuum cleaner is provided with two infrared radiation emission means 104, 701 for irradiating infrared radiation from a hose handling part in different directions and an infrared radiation receiving means 107 which is provided in the top face side of the vacuum cleaner main body 101 so as to receive the infrared radiation irradiated from the infrared radiation emission means 104, 701 and reflected from a ceiling and a wall in a room, and the infrared radiation directly reaching from the infrared radiation emission means. Therefore, switch operation information in the hose handling 109 side which is inputted by a user is optically transmitted from the hose handling part to the cleaner main body side.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a vacuum cleaner,
In particular, the present invention relates to an electric vacuum cleaner in which operation information (switch operation information) input by a user at a hose hand portion is transmitted to a cleaner body side.

[0002]

2. Description of the Related Art In a conventional vacuum cleaner, a switch at the hose hand and a control circuit in the cleaner body are connected by wiring embedded in the hose, and a switch signal (operation information) by the switch at the hose hand is connected. It is common to adopt a configuration in which the signal is sent to a control circuit in the main body via electric wiring. This complicates the structure of the hose, and the structure of the connection and connection between the base of the hose and the cleaner body, and also breaks the wiring in the hose and the connection between the base of the hose and the cleaner body. There is a possibility that the reliability of the electrical connection at the connection / connection site may be degraded. Furthermore, since the wiring inside the hose must be helically wound in multiple layers along the bellows of the hose, the weight of the hose increases, which is one of the causes of poor operability, and the cost of the hose is also expensive. Had become.

Therefore, a vacuum cleaner in which a switch signal, which has been conventionally transmitted by wiring in a hose, is optically transmitted using a light-emitting element and a light-receiving element is disclosed in Japanese Patent Application Laid-Open No. Sho.
These are proposed in Japanese Patent Application Laid-Open Nos. 8-221924, 61-87527 and 62-207427. That is, in the prior application, a light emitting element is provided at a hose hand portion of a hose, and an optical signal emitted from the light emitting element is received by a light receiving element on the cleaner body side. According to the earlier application, a light emitting element and a light receiving element are provided at a connection / connection portion between a connection pipe at the base of a hose and a cleaner body, and light is emitted regardless of the orientation of the light emitting element disposed on the connection pipe side. A reflecting mirror is provided so that light emitted from the element is received by the light receiving element on the main body side. In the earlier application, a light-emitting element and a light-receiving element are provided at a connection / connection portion between a hose base and a cleaner body, and the light-emitting element at the hose base and the light-receiving element on the body side face each other. A light emitting element is provided in the section, and this light emitting element is optically coupled to a light receiving element on the main body side via an optical fiber in a hose.

[0004]

However, in the prior art described in the above-mentioned prior application, the light signal (infrared light signal) output from the light emitting element (infrared light transmitting section) at the hose hand is used. Is not always taken into consideration by the light receiving element (infrared light receiving unit) on the cleaner body side, and if the infrared transmitter on the hose hand is not always pointed toward the cleaner body, Because it is not possible to send and receive signals reliably,
There is a drawback that the use form of the vacuum cleaner hose is greatly restricted. Furthermore, in the case of a vacuum cleaner, there is no guarantee that the main body of the cleaner is always in a fixed direction with respect to the hose hand, and a user intervenes between the hose hand and the cleaner body to emit an optical signal. There is a drawback that it is often impossible to control the main body of the vacuum cleaner from the hose hand part because of the high possibility of blocking the vacuum cleaner.

In the prior art described in the above-mentioned prior application, transmission and reception of an optical signal between a light emitting element (infrared light transmitting section) and a light receiving element (infrared light receiving section) are ensured. However, since it is necessary to embed electrical wiring and optical fibers in the hose, the structure of the hose is complicated, increasing the cost of the hose, and increasing the weight of the hose and deteriorating the operability. . Further, in the case where an optical fiber is used, there is a problem that adjustment is complicated due to optical coupling between the main body of the cleaner and the hose base, and the cost is relatively high.

Accordingly, a technical problem to be solved by the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to eliminate the need for burying a signal transmission line in a hose. In the above, even if the infrared transmitter of the hose hand is not directed toward the cleaner body, and even if a user is interposed between the hose hand and the cleaner body, control of the cleaner body from the hose hand section is possible. An object of the present invention is to provide a vacuum cleaner which can be surely performed, thereby reducing the weight of a hose and improving operability.

[0007]

In order to achieve the above object, an electric vacuum cleaner according to the present invention is a vacuum cleaner body having an electric blower for generating suction force and control circuit means for driving the electric blower, and the cleaning. A hose connected to the machine body, an extension pipe connected to the hose, a suction port connected to the extension pipe, and a hose hand portion of the hose for controlling the operation of the cleaner body. A vacuum cleaner, comprising: a control circuit means including a switch means for inputting operation information; a first for transmitting the operation information input by a user from the hose hand portion to the cleaner body side.
And a second transmitting means for transmitting the operation information from the hand portion of the hose to the cleaner body side, and a signal emitted from the first transmitting means and reflected on a ceiling or a wall in a room, And a receiving means arranged in the cleaner body so as to be able to receive another signal transmitted from the second transmitting means, the first and second transmitting means being the switch means. It is installed so that it is sandwiched between the front and back positions.

Further, a cleaner body having an electric blower for generating a suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose, An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first means for optically transmitting the operation information input by a user from the hose hand portion to the cleaner body side.
Light emitting means, a second light emitting means for optically transmitting the operation information from the hose hand portion to the cleaner body side, and a light emitted from the first light emitting means and reflected by a ceiling or a wall in a room. And a light receiving means disposed in the cleaner body so as to be able to receive the emitted light and another light emitted from the second light emitting means, and the first and second light emitting means are provided. The switch means is provided so as to be in the front-rear position.

At this time, the first light emitting means is preferably provided on the extension tube side of the switch means. Further, the first light emitting means is an infrared light emitting means that emits infrared rays substantially vertically upward from the hose proximal portion, and the second light emitting means is an infrared light emitting means that emits infrared rays downward substantially horizontally from the hose proximal portion. It is desirable that the light receiving means is an infrared light receiving means provided on the upper surface side of the cleaner body.

Further, a cleaner body having an electric blower for generating a suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose, An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first means for optically transmitting the operation information input by a user from the hose hand portion to the cleaner body side.
Light emitting means, and second light emitting means for emitting light in a direction different from that of the first light emitting means for optically transmitting the operation information from the hose hand portion to the cleaner body side, At least a light receiving unit arranged in the cleaner body so as to be able to receive any one of the light emitted from the first light emitting unit and the light emitted from the second light emitting unit, The first light emitting means is provided on the extension tube side of the switch means, and the second light emitting means is provided on the opposite side of the first light emitting means across the switch means.

At this time, the first light emitting means is an infrared light emitting means for radiating infrared rays from the hand portion of the hose substantially vertically upward, and the second light emitting means is radiating infrared light from the hand portion of the hose to substantially downward from horizontal. It is preferable that the infrared light emitting means is used and the light receiving means is an infrared light receiving means disposed on the upper surface side of the cleaner body.

Further, a cleaner body having an electric blower for generating a suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose, An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first means for optically transmitting the operation information input by a user from the hose hand portion to the cleaner body side.
Light emitting means, a second light emitting means for optically transmitting the operation information from the hose hand portion to the cleaner body side, and a light emitted from the first light emitting means and reflected by a ceiling or a wall in a room. And a light receiving unit disposed in the cleaner body so as to be able to receive this light and another light emitted from the second light emitting unit.

With the above structure, in addition to the direct transmission of the signal (or light) from the hand portion of the hose to the cleaner body, the signal (or light) is transmitted by utilizing the reflection of the ceiling or wall in the room. By doing so, the signal (or light) transmission will not be obstructed regardless of the positional relationship between the hose handle and the cleaner body, or even if the user enters between the hose handle and the cleaner body. , It is possible to reliably control the vacuum cleaner body remotely.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to a first embodiment shown in FIGS. 1 to 6 and a second embodiment shown in FIGS.

First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the appearance of a vacuum cleaner according to the first embodiment. In FIG. 1, reference numeral 101 denotes a cleaner main body in which a control circuit and an electric blower, which will be described later, are incorporated, and 102 denotes a cleaner main body 101. The hose 103 connected to the suction port of the hose 103 is a hose hand 1 at the tip of the hose 102.
Reference numeral 104 denotes a switch operation unit disposed at 09, an infrared light emitting diode 1 also disposed at a hose
Reference numeral 05 denotes an extension tube connected to the tip of the hose 102 (hose hand 109), reference numeral 106 denotes a suction port connected to the extension tube 105, reference numeral 107 denotes an infrared photodiode disposed on the upper surface of the cleaner main body 101, and reference numeral 108 denotes Shows the indoor ceiling.

FIG. 2 is a block diagram showing the main structure of the control system of the electric vacuum cleaner of the first embodiment. In FIG.
201 is a hose hand control circuit provided in the hose hand 109, and 202 is a main body control circuit provided in the cleaner main body 101. In addition, the hose hand control circuit 2
On the 01 side, 203 is a hose hand part control circuit 201.
(Hereinafter abbreviated as "microcomputer"), 204 is a dry cell, 205 to 207 are switches of the switch operation unit 103, 104 is the infrared light emitting diode, and 208 is a transistor for driving the infrared light emitting diode 104. On the other hand, in the main body control circuit 202, 107 is the infrared photodiode, 209 is a microcomputer which controls the overall control of the main body control circuit 202, 211
Is a receiving unit for photoelectrically converting a signal received by the infrared photodiode 107 and returning it to a digital code, 212 is an electric blower for generating a suction force, and 213 is an electric blower 2
Reference numeral 12 denotes a drive circuit, 214 denotes a power supply circuit, and 215 denotes an AC power supply.

Next, the operation of this embodiment will be described. When the user of the vacuum cleaner switches on the hose
Is pressed, the microcomputer 203 detects this, and
A signal code (digital code) is generated according to the pressed switch. Then, the microcomputer 203 emits and controls the infrared light emitting diode 104 via the driving transistor 208 based on the generated digital code, and converts the generated signal code into an infrared light signal (an operation information signal converted into a light signal). As radiation. Here, since the infrared light emitting diode 104 is disposed so as to face substantially vertically upward in a normal use state as described later, the infrared light radiated upward from the light emitting diode 104 is transmitted to the ceiling 1 of the room.
08 and is reflected and reaches the infrared photodiode 107 of the cleaner main body 101. The infrared light signal received by the infrared photodiode 107 is converted into a digital code by the receiving unit 211, and
09 is input. The microcomputer 209 controls the driving circuit 213 according to the signal code output from the receiving unit 211, and thereby controls the operation state of the electric blower 212.

Here, the infrared light emitting diode 104
3 will be described with reference to FIG. Hose hand 10
The infrared light emitting diode 104 attached to 9 is positioned closer to the extension tube 105 than the switches 205 to 207 (switch operation unit 103). This is so that even if the switches 205 to 207 are operated by holding the stick-shaped grip portion 301 of the hose hand portion 109, the infrared light emitting diode 104 is not covered by the hand. Also, as described above, the infrared light emitting diode 104
By separating the grip part 301 from the grip part 301,
The infrared light signal emitted from the infrared light emitting diode 104 is less likely to be blocked by the upper body of the user, and can more reliably reach the ceiling.

The infrared directional angle of the infrared light emitting diode 104 (the tilt angle with respect to the optical axis where the light emission output relative value is 0.5) will be described with reference to FIG. As shown in the figure, the infrared light emitting diode 104 is attached to the hose hand portion 109 so as to face substantially vertically upward in a normal use state. The infrared light emitting diode 104
It is desirable to select a product with a narrow directivity angle 401 (25 ° or less). Since the emitted infrared light is reflected by the indoor ceiling 108 and reaches the light receiving portion of the cleaner main body 101, the transmission distance of the infrared light is lengthened, and when the infrared light is reflected on the ceiling, This is because the directional angle is widened because the light is almost diffusely reflected, so that even if the directional angle is narrow, the range in which the infrared light reflected from the ceiling reaches can be sufficiently widened.

Next, a method of driving the infrared light emitting diode 104 will be described with reference to FIG. In a remote control system using infrared light, in order to avoid malfunction due to disturbance noise, a pulse modulated signal 501 obtained by modulating data by a pulse position modulation method is used, and this is further converted to a subcarrier 50.
2 for amplitude modulation. The frequency of the normal sub-carrier 502 is selected to be 33 kHz or more and 40 kHz or less, and is set to, for example, 40 kHz in the present embodiment. The data modulated by the microcomputer 203 is output as an infrared light signal by driving and controlling the infrared light emitting diode 104 by the microcomputer 203. on the other hand,
The light receiving unit 211 of the vacuum cleaner main body 101 converts the infrared light signal received by the infrared photodiode 107 into an electric signal, and amplifies only a carrier wave component by a 40 kHz band pass filter (hereinafter abbreviated as BPF). , And detects a signal component, and sends a pulse modulated signal (data corresponding to operation information) 501 to the microcomputer 209. Since the receiving unit 211 has a built-in BPF of 40 kHz, only the fundamental component of the subcarrier 502 contributes to reception. Therefore, the duty ratio of the subcarrier is set to D
If UTY ratio = Ton / (Ton + Toff), DU
When the TY ratio is 50%, the fundamental wave component 40 kHz becomes the largest. However, considering the problem of the life of the dry battery 204 and the problem of thermal destruction of the infrared light emitting diode 104, it is desirable that the DUTY ratio of the subcarrier 502 is 35% or more and less than 50%.

Next, the infrared photodiode 107
The light receiving angle (the angle at which the sensitivity is reduced by half compared to the value on the optical axis)
This will be described with reference to FIG. Infrared photodiode 107
Is disposed at a rear position on the upper surface of the cleaner main body 101 so that its optical axis faces substantially vertically upward. In addition, the light receiving angle 601 of the infrared photodiode 107 is, as shown in FIG.
Those that are at least 40 ° are selected. By doing so, the infrared photodiode 107 is placed in a position where it is unlikely to be shadowed by the hose 102 or the user, and by increasing the light receiving angle 601 to 40 ° or more, the infrared photodiode 107 is surely reflected from the ceiling 108. The incoming infrared light signal can be received.

As described above, according to this embodiment, the infrared light signal transmitted from the infrared light emitting diode 104 of the hose hand portion 109 is reflected on the ceiling or the wall in the room and the infrared light on the upper surface of the cleaner main body 101 is reflected. Since it reaches and is received by the photodiode 107, the hose hand portion 109 and the cleaner body 1
Irrespective of the positional relationship of 01, even if a user enters between the hose hand section 109 and the cleaner main body 101, it does not hinder the transmission of infrared light. Remote control of the vacuum cleaner main body 101 can be reliably performed. This eliminates the need for wiring conventionally buried in the hose, thereby reducing the weight of the hose and improving operability.

Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment differs from the first embodiment in that the infrared light signal is directly transmitted to the cleaner main body 1 in a normal use state.
Another infrared light emitting diode that can be input to the 01 infrared photodiode 107 is added. In FIGS. 7 to 9, the same components as those in the first embodiment are denoted by the same reference numerals.

FIG. 7 is a perspective view showing the external appearance of the electric vacuum cleaner according to the second embodiment. In FIG. 7, 701 is arranged at the grip end of the stick-shaped grip portion 301 of the hose hand portion 109. Further, the infrared light emitting diode 701 is mounted so that the infrared light emitting angle of the infrared light emitting diode 701 is lower than substantially horizontal in a normal use state.

Next, the mounting location of the infrared light emitting diode 701 and the infrared radiation angle will be described with reference to FIG. The infrared light emitting diode 701 is attached to the grip end of the grip part 301 of the hose hand part 109 as described above. This reduces the possibility that the infrared light signal radiated from the infrared light emitting diode 701 is blocked by the hose 102 and increases the possibility of reaching the infrared photodiode 107 of the cleaner main body 101. Further, the infrared light emitting diode 701 has an infrared directional angle of 80.
1 is selected to select a wide variety (wider than 25 °). This is because the distance between the infrared light emitting diode 701 and the infrared photodiode 107 is limited by the length of the hose 102, so that the operating range is expanded more than the reach of the infrared light.

FIG. 9 is a block diagram showing the hose hand portion control circuit 201 on the hose hand portion 109 side according to the second embodiment. As shown in FIG.
01, together with the infrared light emitting diode 104 described above,
Under the control of the microcomputer 203, light emission and control are simultaneously performed by the driving transistor 208. Thereby, the ceiling reflected infrared light signal from the infrared light emitting diode 104,
The direct infrared light signal from the infrared light emitting diode 701 can be received by the infrared photodiode 107 at the same time, and the remote control of the cleaner main body 101 can be performed more reliably.

As described above, according to the second embodiment,
Even if the infrared light signal transmitted from the infrared light emitting diode 104 of the hose hand 109 is reflected on the ceiling or wall in the room and the state of reflection on the ceiling is poor, the hose hand 1
Since the infrared light signal from the infrared diode 701 attached to the grip end of the grip part 09 of FIG. 09 reaches and is received by the infrared photodiode 107 on the upper surface of the cleaner main body 101, the light signal from the hose hand part 109 is further increased by the light signal. Remote control of the vacuum cleaner main body 101 can be reliably performed.

In the above-described electric vacuum cleaner according to the present invention, the structure of the hose and the structure of the connecting / connecting portion between the hose root and the cleaner body are simplified, and the cost can be reduced. In addition, the wiring in the hose is not broken, and the electrical contact failure at the connecting / connecting portion between the root of the hose and the cleaner body is eliminated, so that the reliability is improved.

[0029]

As described above, according to the present invention, since the signal transmitted from the hose hand portion is reflected by the ceiling or wall in the room and is received by the cleaner body, the hose hand portion and the cleaner body are received. Regardless of the positional relationship between the hose and the vacuum cleaner body, the user does not interfere with the signal transmission even if the user enters between the hose handle and the vacuum cleaner body, and the vacuum cleaner body can be reliably controlled remotely. This eliminates the need for wiring conventionally buried in the hose, thereby reducing the weight of the hose and improving operability.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external appearance of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a block diagram schematically showing a control system in the vacuum cleaner according to the first embodiment of the present invention.

FIG. 3 is an explanatory view showing a mounting place of an infrared light emitting diode in the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an infrared directivity angle of the infrared light emitting diode according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a driving method of the infrared light emitting diode according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a light receiving angle of the infrared photodiode according to the first embodiment of the present invention.

FIG. 7 is a perspective view illustrating an external appearance of a vacuum cleaner according to a second embodiment of the present invention.

FIG. 8 is an explanatory view showing a mounting location and an infrared radiation angle of an infrared light emitting diode disposed on a grip according to a second embodiment of the present invention.

FIG. 9 is a block diagram showing a hose hand control circuit according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Vacuum cleaner main body 102 Hose 103 Switch operation part 104 Infrared light emitting diode 105 Extension tube 106 Suction opening 107 Infrared photodiode 108 Indoor ceiling 109 Hose hand part 301 Grip part 701 Infrared light emitting diode

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hisao Suga 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Taga Plant of Hitachi, Ltd.

Claims (13)

[Claims] 1. A cleaner body having an electric blower for generating suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose. An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. A first transmitting means for transmitting the operation information input by a user from the hose hand portion to the cleaner body side; and the operation information from the hose hand portion to the cleaner body side. So as to be able to receive a signal that is radiated from the first transmission unit and reflected by a ceiling or a wall in the room, and another signal that is transmitted from the second transmission unit. To the above An electric vacuum cleaner, comprising: a receiving unit arranged in the main body of the machine; and the first and second transmitting units provided at front and rear positions with the switch unit interposed therebetween. 2. A cleaner body having an electric blower for generating suction force and control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose. An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first light emitting means for optically transmitting the operation information input by the user from the hose hand portion to the cleaner body side; and the operation information from the hose hand portion to the cleaning portion. Second light emitting means for optically transmitting to the main body of the machine; light emitted from the first light emitting means and reflected by a ceiling or a wall in a room; and another light emitted from the second light emitting means. Can receive light As described above, the vacuum cleaner is provided with a light receiving means disposed in the cleaner body, and the first and second light emitting means are provided in front and rear positions with the switch means interposed therebetween. 3. The electric vacuum cleaner according to claim 2, wherein the first light emitting means is provided on the extension tube side of the switch means. 4. The second light emitting means according to claim 2, wherein the first light emitting means is an infrared light emitting means that emits infrared rays from a hand portion of the hose substantially vertically upward, and the second light emitting means is an infrared ray hose. An electric vacuum cleaner, which is an infrared light emitting means that radiates downward from a horizontal portion substantially horizontally, and the light receiving means is an infrared light receiving means disposed on an upper surface side of the cleaner body. 5. The electric cleaning system according to claim 2, wherein a directivity angle of the second light emitting means is wider than a directivity angle of the first light emitting means. Machine. 6. The electric vacuum cleaner according to claim 2, wherein the second light emitting means is arranged at a grip end of a stick-type grip of the hose proximal portion. . 7. A cleaner body having an electric blower for generating suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose. An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first light emitting means for optically transmitting the operation information input by the user from the hose hand portion to the cleaner body side; and the operation information from the hose hand portion to the cleaning portion. A second light emitting means for emitting light in a direction different from that of the first light emitting means for optically transmitting to the machine body side; and at least from the first light emitting means or the second light emitting means. Radiated A light receiving means disposed in the cleaner body so as to be able to receive any one of the emitted light, the first light emitting means is provided on the extension tube side of the switch means, and 2. An electric vacuum cleaner, wherein the second light emitting means is provided on the opposite side of the first light emitting means across the switch means. 8. The infrared light emitting means according to claim 7, wherein the first light emitting means emits infrared light from a hose proximal portion substantially vertically upward, and the second light emitting means emits infrared light at a hose proximal portion. The vacuum cleaner is characterized in that it is an infrared light emitting means that radiates downward from substantially horizontal, and the light receiving means is an infrared light receiving means disposed on the upper surface side of the cleaner body. 9. The vacuum cleaner according to claim 8, wherein the directional angle of the second light emitting means is wider than the directional angle of the first light emitting means. 10. The electric vacuum cleaner according to claim 7, wherein the second light emitting means is arranged at a grip end of a stick-type grip of the hose proximal portion. . 11. The method according to claim 2, wherein the directivity angle of the first light emitting means is 25 ° or less.
The vacuum cleaner characterized in that the directivity angle of the light emitting means of is larger than 25 °. 12. The infrared light receiving means according to claim 2, wherein the infrared light receiving means is arranged such that its optical axis is substantially vertically upward, and its light receiving angle is 40 ° or more. An electric vacuum cleaner characterized by. 13. A cleaner body having an electric blower for generating a suction force and a control circuit means for driving the electric blower, a hose connected to the cleaner body, and an extension pipe connected to the hose. An electric vacuum cleaner provided with a suction port connected to the extension pipe and a control circuit means including a switch means arranged at a hose hand portion of the hose for inputting operation information for controlling the operation of the cleaner body. And a first light emitting means for optically transmitting the operation information input by the user from the hose hand portion to the cleaner body side; and the operation information from the hose hand portion to the cleaning portion. Second light emitting means for optically transmitting to the main body of the machine; light emitted from the first light emitting means and reflected by a ceiling or a wall in a room; and another light emitted from the second light emitting means. Can receive light As described above, the electric vacuum cleaner comprising: a light receiving means disposed in the main body of the vacuum cleaner.