JPH0659437B2 - Automatic spraying device for air fresheners - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in a fountain container installed at a front door, a washroom, a meeting place or the like, or used for demonstrating a cosmetic spray for a new product. The present invention relates to a device for automatically spraying fragrances and deodorants.

[Conventional technology]

Examples of automatic spraying devices of this type are shown in FIGS. 10 and 11 (Japanese Utility Model Application No. 60-17).
8122).

This automatic spraying device comprises a drive mechanism A for spraying an aromatic or the like from a spray container, and a detection control system B for detecting the external change and controlling the drive of the drive mechanism A. The drive mechanism A has a recess 3 on the front surface of the main body case 1 for accommodating a pump-type or aerosol-type spray container 2. A pusher 6 for pressing the spray head 4 of the spray container 2 is provided in the upper part of the recess 3, and the pusher 6 is driven by a detection control system B which drives a motor 12 connected to the pusher 6. Done by. That is, a detector 50 for detecting an external change such as an infrared sensor, a temperature sensor or a microphone is provided on the front surface of the main body case 1.
The detector 50 detects infrared rays or sound emitted from the human body, and the motor drive circuit 39 drives and controls the motor 12, that is, the pusher 6 based on the detection signal.

Thus, when the spray head 4 is automatically pressed by the pusher 6, the liquid fragrance or deodorant contained in the spray container 2 is ejected toward the front of the main body case 1.

[Problems to be solved by the invention]

However, in the above-described automatic spraying device, the detection sensitivity level of the detector 50 has not been properly considered according to the usage situation, and thus has the following drawbacks. That is, for example, when a voice detector such as a microphone is used as the detector 50, the closer the human body is to the front surface of the main body case 1, the higher the detection sensitivity thereof becomes.
When a human body approaches the front surface of the main body case 1, this is detected, and the motor 12 is activated to cause the spray liquid to inadvertently drop on the face or clothes. Further, such a drawback similarly occurs when an infrared sensor is used.

An object of the present invention is to provide an automatic spraying device which has been proposed to solve the above-mentioned conventional drawbacks and which can be safely used without the risk of accidentally spraying the sprayed liquid onto the face or clothes. is there.

[Means for solving problems]

That is, according to the present invention, as shown in FIG.
In addition, a spray container 2 for spraying the liquid fragrance and the like inside by the pressing of the spray head 4 is housed, and a drive means for pressing the spray head 4 with a pusher 6 is provided to store the fragrance and the like in the main body case 1. It is premised on an automatic spraying device that sprays forward.

As a mode of pushing the spraying head 4 with the pusher 6, the pusher 6 may be actuated to push the spraying head 4 itself, but the entire spraying container 2 is pushed up from the bottom to move the spraying head 4 to the pusher 6. It is also possible to take the form of pressing and abutting.

The driving means for pressing the spray head 4 with the pusher 6 is a motor 12, and a motion conversion mechanism 13 for converting the rotational motion of the motor 12 into a linear motion of the pusher 6 required to press the spray head 4 or a lifting motion of the spray container 2. In addition to the above-mentioned configuration, a solenoid may be used to operate the pusher 6 or the spray container 2 may be pushed up. The motion exchange mechanism 13 may be a slider / crank mechanism, a cam mechanism, or a rack and pinion gear.

In addition, the present invention uses the detection control system B shown in FIG. 9 or FIG. 7 as means for controlling the drive of the motor 12 or the solenoid or the like.

The detection control system B shown in FIG.
For example, a human body detector 31 including an infrared sensor is provided, and when a human body enters the detection area of the human body detector 31, this is detected, and the control circuit 32 controls the drive of the motor 12 or the solenoid based on the detection signal. Adopt a configuration to do. The human body detector 31 has a dead zone set in front of the body case 1 and detects the human body when the dead zone is located further in front of the dead zone.

The detection control system B shown in FIG. 7 is provided with a human body detector 31 similar to the one described above and a voice detector 30 for detecting a voice emitted from the human body on the front surface of the main body case 1, and the human body detector 31 detects the human body. When the detection signal and the voice detection signal from the voice detector 30 are given to the AND circuit 35, the drive control of the motor 12 or the solenoid is performed.

[Embodiment 1] FIGS. 1 to 8 show a first embodiment of the present invention.

The automatic spraying device to which the present invention is directed comprises a drive mechanism A shown in FIGS. 1 to 6 and a detection control system B shown in FIG. 7. The detection control system B controls the drive of the drive mechanism A. Eject the spray liquid.

First, the drive mechanism A will be described. A front open recess 3 for accommodating the spray container 2 in the front-rear direction is formed on the front surface of the main body case 1 formed in a vertically long rectangular tube shape. A pusher 6 for pressing the spray head 4 of the spray container 2 is supported at a predetermined position on the upper wall 3a in the recess 3 of the main body case 1 via a bush 7 so as to be vertically slidable. There is. The pusher 6 is formed in a pin shape with a round head, and the round head presses against the upper surface of the spraying head 4.

A slide pressing plate 9 can be attached to the bottom surface 8 in the recess 3 so as to be freely inserted and removed in the front-rear direction, and the pressing action of the pressing plate 9 moves the spray container 2 to a predetermined position where the spray head 4 is located below the pusher 6. Hold and hold.

When the spray head 4 mounted on the upper portion of the spray container 2 is pressed downward, the liquid inside the spray container 2 is sprayed from the spray port 5 of the spray head 4 in a mist state.

A container pressing plate 10 is fixed to the recess 3 of the main body case 1 at a midpoint in the height direction, and a notch portion including a neck below the spray head 4 of the spray container 2 at the front end of the container pressing plate 10. 11 is provided to prevent the container 2 from collapsing.

As a specific driving means of the pusher 6, a motor 12
The motion conversion mechanism 13 converts the rotational motion of the motor 12 into a vertical motion of the spray head 4.

A geared motor is used as the motor 12, and the main body case 1
A battery 14 incorporated below the recess 3 is used as a power source. The battery 14 has a size AA type battery in a battery chamber 15 provided at the bottom of the case below the motor 12 in the main body case 1.
Books are stored in series.

As the motion converting mechanism 13, the rotating shaft 16 is supported by the bearing 17 side by side with the motor 12, and the gear 19 on the motor shaft 18 is meshed with the gear 20 at one end on the rotating shaft 16 to make the motor 1
The rotation of 2 is transmitted to the rotary shaft 16. A crank pin 22 is provided at an eccentric position on each of the gear 20 at one end and the disc 21 at the other end on the rotary shaft 16. In the main body case 1, a gate-shaped connecting rod 23 is vertically movably incorporated via a guide 24 so as to straddle the top wall 3a of the recess 3 and the left and right inner walls 3b, 3b. The connecting rod 23 has left and right leg portions 23a, 23a guided by a guide 24, and a head portion 23b located above the ceiling wall 3a and connecting the upper ends of the left and right leg portions 23a, 23a. Leg 23a
An elongated hole 25 that is long in the front-rear direction is formed at each lower end of 23a. The connecting rod 23 slidably engages the long holes 25, 25 of the left and right leg portions 23a, 23a with the front and rear crankpins 22, 22 to integrally connect the upper end portion of the pusher 6 to the head portion 23b. Thus, the rotation of the rotary shaft 16 causes the crank pin 22 to slide in the long hole 25, and the connecting rod 2
3 moves up and down via the guide 24. The pusher 6 similarly moves up and down as the connecting rod 23 moves up and down to press the spray head 4.

Next, the detection control system B will be described with reference to FIG. This detection control system B detects the voice emitted from the human body,
For example, a voice detector 30 including a microphone, a human body detector 31 including an infrared sensor of a pyroelectric type for detecting infrared rays emitted from a human body, and a jet based on the detection results of the voice detector 30 and the human body detector 31 Mechanism A, specifically, a control circuit 32 for controlling the drive of the motor 12 and the like.

As shown in FIG. 2, the human body detector 31 and the voice detector 30 are provided on the left and right of the upper position of the recess 3 on the front surface of the main body case 1. The control circuit 32 is formed on a substrate 29 provided behind the recess 3 in the main body case 1.

The voice detector 30 detects a voice emitted from a human body, and supplies this voice detection signal to the AND circuit 35 via the volume 33 and the switching circuit 34. Volume 3
Reference numeral 3 is for adjusting the detection sensitivity of the voice detector 30, and is performed by operating the operation knob 42 on the back side of the main body case 1 as shown in FIG. 6, for example. Further, the switch circuit 34 is composed of a changeover switch 34a, and when a voice detection signal is given to the AND circuit 35, it is at the position shown by (a) in the figure.

A human body detection signal detected by the human body detector 31 is also input to the AND circuit 35. The detection area of the human body detector 31 is set to a position apart from the front of the body case 1 by a predetermined distance.

The setting of the detection area can be realized, for example, by configuring an infrared sensor as shown in FIG. That is, as shown in FIG. 8 (a), a convex lens 31b such as a Fresnel lens is provided in front of the infrared ray sensor 31a. Assuming that the focal length of the convex lens 31b is f, the distance from the convex lens 31b to the human body is u, and the distance from the convex lens 31b to the focus point of infrared rays generated from the human body is v, the relationship shown in the following formula (1) is obtained. To establish.

From equation (1), u and v are expressed by the following equations (2) and (3), respectively.

Here, since f is a constant, there is a gap between u and v in FIG.
The relationship shown in (b) is established. According to FIG. 8 (b),
When u >> 2f, that is, when the human body is distant, v converges to the vicinity of f, and conversely, when the human body is in a position close to the lens 31b, v is considerably distant from the lens.

In FIG. 8 (a), the lens 31b to the infrared sensor 3
Letting the distance to the mounting position of 1a be, the detection sensitivity becomes best when = v. The position of the human body at this time is calculated by the above equation (2). Becomes

From the equation (4), the area with the highest detection sensitivity of the infrared sensor 31a is determined by v, that is, the correlation between the mounting position of the lens 31b and the focal length f.

As shown in FIG. 8 (c), assuming that the effective diameter of the infrared sensor 31a is a and the aperture diameter of the lens 31b is b, in order for the infrared sensor 31a to detect infrared rays with high sensitivity, Infrared must pass through.
For that purpose, the infrared path must be between the path 50 indicated by the solid line and the path 51 indicated by the phantom line in FIG. 8 (c). Then, the geometrical relationship shown in FIG. 8 (c) determines the condition shown by the following equation (5) as a condition for the infrared sensor 31a to detect infrared rays.

Then, in order to obtain such a range of v, the position u of the human body
The condition that should be satisfied is determined by the above equation (1).

That is, when the position u of the human body satisfies the condition shown in the equation (6), the infrared sensor 31a can detect infrared rays with high sensitivity, and this is the detection area of the infrared sensor 31a.

From the above description, the infrared detection range is the focal length f of the lens,
It can be calculated by the effective diameter a of the sensor, the aperture b of the lens, and the mounting distance between the sensor and the lens.

For example, if a = 0.2cm, b = 4.0cm, and f = 3.0cm are set, 27.3cm <u192cm from the above formula (6),
This area is the detection area.

Reconsidering here, if u is 10 cm with the above set value, that is, if the human body is very close, Therefore, as shown by the broken line 52 in FIG. 8 (c), infrared rays are detected within the effective diameter of the infrared sensor 31a in only a fraction of the whole, and the detection sensitivity is significantly lowered and is outside the detection range.

On the contrary, when the distance can be far, that is, when u = ∞, Fig. 8
From the relationship shown in (b), v≈f. That is, when the target object (human body) is distant, the focal point u is almost the focal length f.
Since it concentrates in the vicinity, like this embodiment, it is = 3.2 cm, f
If the human body is located far away by setting f = 3.0 cm or the like close to f, it will almost pass through the infrared sensor.

From the above description, the human body detector 31 does not detect the human body when the human body approaches within a predetermined distance.
Further, when the human body is present at a position that is sufficiently separated from the predetermined distance to the front, the detection level is below the detection level due to the attenuation of the infrared rays emitted from the human body. Therefore, the detection area is inevitably a constant area apart from the predetermined distance. This predetermined distance is specifically associated with the end point distance f of the lens 31b and the sensor 31a in association with the maximum spraying position of the spray liquid sprayed from the spray container 2.
Determine and set the mounting position of the. In this case, as described above, f = 3.0 cm, = 3.2 cm, a = 0.2 cm, b = 4.0 cm
If set to etc., the detection sensitivity will be significantly reduced when the human body is closer than 27.3 cm, so the spray liquid will not eject.

The detection area may be set by combining a plurality of optical lenses such as a convex lens and a convex mirror, or may be set by connecting a comparator to an infrared sensor and performing predetermined signal processing. You may Further, the human body detector 31 may set a detection area by arranging a plurality of optical sensors other than an infrared sensor, for example, light emitting elements and light receiving elements in parallel on the front surface of the main body case 1.

When the voice detection signal and the human body detection signal are input, the AND circuit 35 gives the voice detection signal to the control circuit 32. The control circuit 32 includes a determination circuit 37 and a memory circuit 38.
This voice detection signal is collated with a registered voice signal registered in the memory 38 in advance, and when the two signals match, the motor drive circuit 3 is operated via the delay time setting circuit 36.
A predetermined drive command signal is issued to 9 to drive the motor 12 to eject the spray liquid from the spray container 2 to the front of the case.

The delay time setting circuit 36 is for providing a predetermined delay time and outputting it to the motor drive circuit 39. This delay time is set to 2 to 5 seconds, for example, in association with the time required for the human body to enter the detection area of the human body detector 31 and make a sound and then leave the front surface of the main body case 1. It prevents the spray container 2 from directly jetting toward the human body and causing discomfort.

For registering the registered voice signal in the memory 38, first, of the first, second, and third switches 43a, 43b, 43c for registration setting provided side by side on the rear side of the body case 1, the first switch 43a When is pressed, the display unit (LED) 44 provided side by side on the voice detector 30 blinks to notify that the voice may be registered. This is when the switch 34a of the switching circuit 34 is in the position shown by (b) in the figure, and when, for example, a man utters a voice of a specific calling toward the voice detector 30, this voice signal causes the volume 34 and Memory 38 via switching circuit 34
Will be registered within. Then, the display section 44 changes from blinking to a lighting state to signal the completion of voice registration. Next, the second
When the switch 43b is pressed, the display unit 44
Flashes. Here, another voice, for example, a voice of the same name is emitted by a woman toward the voice detector 30, and when the voice is registered in the memory 38 in the same manner, the display unit 44 changes from blinking to lighting to notify the completion of registration. Finally, the third switch 43c is pressed to register any other voice. In this way, three types of voices are registered. These voice generation times are set to about 1.2 seconds, for example.

The determination circuit 37 of the control circuit 32 is the AND circuit 35.
When a voice detection signal is input from the device, the registered voice signal registered in the memory 38 is read, the input signal and the registered voice signal are collated, and which registered voice signal the input signal approximates is determined. . At this time, as compared with the registered voice signal input from the first and second switches 43a and 43b, if none of them is close to the registered voice signal, all are approximated to the registered voice input to the third switch 43c. It is determined to do. When it is determined that the input signal is similar to the registered voice signal input to the first switch 43a or the second switch 43b, a drive command signal is issued to the motor drive circuit 39 to drive the motor 12, but If it is determined that the input voice signal is similar to the registered voice signal input to the switch 43c, the drive command signal is not issued to the drive circuit 39 and the motor 12 is not driven. If the third switch 43c is not provided, the first or second switch 43a
There is a disadvantage that it is determined that it is similar to the registered voice input to any of 43b, and that it operates for any voice other than the registered voice. There is a significance of providing the third switch 43c in order to eliminate such a problem.

If a plurality of registration setting switches 43a, 43b, 43c are provided in this way, a plurality of voice samples can be obtained, and individual differences such as accent differences can be compensated.
As the number of audio samples increases, the number of drive opportunities increases. However, if the number of voice samples is too large, malfunctions are likely to occur. Therefore, in the present embodiment, the drive opportunities and malfunctions are taken into consideration. The voice of (male and female) can be input.

A counter switch 40, which is, for example, a micro switch, is connected to the motor drive circuit 39 via a counter 41. The switch 40 is the head 23b of the connecting rod 23.
Is installed near the upper part of the
This operation is counted by the counter 41, and the counting result is output to the drive circuit 39. The drive control circuit stops the motor 12 when this count value reaches a predetermined number, and
This is reported to the control circuit 32 and the reset state is set.

The control circuit 32 may not be provided and the drive control of the motor 12 may be performed based on the human body detection signal and the voice detection signal, and the AND circuit 35 is connected between the determination circuit 37 and the delay time setting circuit 36. However, when the voice detection signal and the registered voice signal are close to each other, the determination circuit 27 outputs the AND circuit 35.
Given a predetermined output signal to the human body detector 3
When the human body detection signal from 1 is input to the AND circuit 35, a drive command signal may be given from the AND circuit 35 to the motor drive circuit 39 via the delay time setting circuit 36.

[Second Embodiment] FIG. 9 shows a second embodiment of the present invention. In this embodiment, the voice detector 30 is not provided in the detection control system B, and the human body detector 31 detects a human body when it enters the detection area, and the drive control of the motor 12 is performed based on the detection result. The configuration is performed, and the portions corresponding to those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

〔The invention's effect〕

According to the first aspect of the invention, a human body detector 31 having a detection range beyond a predetermined distance is provided in front of the main body case 1 on the front side of the main body case 1, and a control circuit based on the detection result of the human body detector 31. Since the drive control of the motor 12 is performed by 32, the motor 12 does not operate in a state where the human body is closer to the main body case 1 than the set distance, and therefore, the spray liquid does not accidentally fall on the human body. Moreover, there is also an advantage that the detection range of the human body detector 31 only needs to be set, and that it can be realized with a simple circuit configuration.

According to the second invention, in addition to the configuration of the detection control system B of the first invention, a voice detector 30 and an AND circuit 35 are provided, and the human body detection signal of the human body detector 31 and the voice detector 30 are provided. Since the drive control of the motor 12 is performed when the voice detection signal is given to the AND circuit 35, it is of course possible to prevent the spray liquid from falling on the human body as in the first aspect of the invention. ， Do not consume the spray liquid unnecessarily.

Further, in the case where the control circuit 32 is provided as in the first embodiment and the drive control of the motor 12 is performed by the control circuit 32 based on the voice detection signal and the registered voice signal registered in advance, a specific case is taken. When a sound other than a specific call is emitted in response to only the call, the motor 12 does not operate,
Contribute to the prevention of tampering.

[Brief description of drawings]

1 to 8 show a first embodiment of the device of the present invention, FIG. 1 is a vertical side view, and FIG. 2 is an external perspective view showing a state before accommodating a spray container, FIG. Is a vertical front view, FIG. 4 is a plan view taken along the line IV-IV in FIG. 3, FIG. 5 is a plan view taken along the line VV in FIG. 3, FIG. 6 is a rear view, and FIG. 7 is the present invention. Block diagram showing a detection control system of the apparatus, No. 8
(A) (b) (c) is a principle explanatory view for explaining the detection area of the human body detector. FIG. 9 is a block diagram of a detection control system showing a second embodiment of the present invention. 10 and 11 are a vertical sectional side view and a vertical sectional front view showing a conventional automatic spraying device. 1 ... Main body case, 2 ... Spray container, 4 ... Spray head, 6 ... Pusher, 12 ... Motor, 30 ... Voice detector, 31 ... Human body detector, 32 ... Control circuit, 35 ... ... AND circuit, 37 ... Judgment circuit, 38 ... Memory, 39 ... Motor drive circuit.

Claims (2)

[Claims] 1. A spray container 2 for spraying an internal liquid fragrance or the like by pressing the spray head 4 is housed in a main body case 1, and the spray head 4 is pressed by a pusher 6 connected to a driving means. In an automatic spraying device for spraying a fragrance or the like to the front of the main body case 1, when the human body is on the front side of the main body case 1 and at a position more than a predetermined distance in front of the main body case 1, An automatic spraying device for fragrance or the like, which comprises: a human body detector 31 for detecting the above; and a control circuit 32 for controlling the drive of the drive means based on the detection result of the human body detector 31. 2. A main body case (1) has a spray container (2) for spraying an internal liquid fragrance or the like by pressing the spray head (4),
The spray head 4 is provided by a pusher 6 connected to a driving means.
In the automatic spraying device configured to spray the fragrance or the like to the front of the main body case 1 by pressing, the human body is separated from the main body case 1 by a predetermined distance or more in front of the main body case 1. Human body detector 31 for detecting the human body detector 31 when it is in a closed position, a voice detector 30 provided on the front surface of the main body case 1 for detecting voice, a human body detection signal from the human body detector 31 and a voice detector 3
An AND circuit 35 which receives a voice detection signal from 0 and outputs when both detection signals are given, and a drive control which receives an output signal from the AND circuit 35 and drives the drive means based on the output signal An automatic spraying device for fragrances, which is provided with a circuit.