JPS5999209A - Unnapped brush detector - Google Patents

Abstract

PURPOSE:To detect brush hair falling down easily, accurately, and sanitarily by supporting the brush hair part by a frame body between a light emission part and a photodetection part in a specific state, and detecting a decrease in the amount of photodetection. CONSTITUTION:A flocked part 1a is supported by the frame body 5 so that the attitude and position of the brush hair part 1b of a tooth brush 1 are specific, and decreases in the amounts of photodetected light from light emission parts 6A and 6B to photodetection parts 7A and 7B are detected to detect how the brush hair curves downward. When the hair curves downward excellently, the amounts of photodetection of phototransistors 7A and 7B are large, so transistors TR4-TR7 turn on, and TRs 8-10 and 11 and 12 turn off to turn off a relay X2, thereby turning on a blue light emitting diode. When the hair curves downward defectively, the relay X2 is energized to turn on a red light emitting diode. Thus, how the hair curves downward is detected easily, accurately, and sanitarily.

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide a device that is useful in detecting the falling state of the bristles of a brush at the end of its life.

To elaborate, in general, many medical brushes such as toothbrushes and cooking brushes have bristles made of nylon, which has excellent abrasion resistance, so this may be the reason why they maintain their performance as brushes. It is necessary to use the condition of the brush bristles as a criterion for judgment, and to determine whether the brush is good or not, or in other words, when it is time to replace it, based on the condition of the bristles. When people make such 'l'lJ distinctions using their senses, especially their eyesight, individual differences arise in their judgments.

Or replace it even though it is still usable.

You may continue to use Somemazun even after the replacement period has passed.
Particularly, in the case of cIl brushes, there is a tendency to damage the gums if the replacement period is exceeded.

As a means to improve the problem of the quality of the brush bristles, it is conceivable to use a brush bristle fall detection device as shown in f) and 10) below.

f41 As shown in Fig. 10, at least the brush bristles (lb) of the brush f+) are removably held in a predetermined posture and position. There is a swinging change t1 in the width direction as indicated by l'jtt at the side corresponding to both sides in the drawing width direction due to contact with the brush bristles.
7 member (101).

('1ot), and the displacement member (101
).

(101) A mechanism to determine the quality of the brush bristles (lb) by flJ based on the amount of rocking displacement (LLLQ and both models (ft)
A mechanism (Im) for displaying the determination result of p) is provided.

(b) As shown in Figure 11, the brush f! Corresponding to both sides in the width direction of the brush bristles (1b) held by the stiffness of the insulating frame (104) that can detachably hold the brush bristles (1b) in a fixed posture and position. A brush fi immersed in a conductive liquid such as a metal ion liquid
Electric conductors (105) and (106) that become energized by contact with the fallen brush bristles are provided. The mechanism (IM) that determines pass/fail and this mechanism (l
Mechanism rl (B
).

In the case of the former (4), the displacement member Qol).

Qm) Since there is an elastic force on the side of the brush (1) held by the body, detection errors are likely to occur if the brush bristles are soft, and in the latter case (b). Inspection is time-consuming because it is necessary to dip a non-conductive brush such as nylon in conductive liquid every time an inspection is performed, or to wash the conductive liquid after each inspection. In both cases of Shi-75x and kneading, hygienic management is required, such as medical brushes and cooking brushes, because a displacement member is applied to the brush bristles and the brushes are immersed in conductive liquid. It had the disadvantage that it could not be used practically.

The purpose of Sekkan+111 is to enable accurate and hygienic detection of the degree of fall of the brush bristles with a simple operation.

The characteristic configuration of the brush bristle fall detection device according to the present invention, which has been made to achieve such an object, is that at least the bristle portion of the brush is held by a frame body that can be detachably held in a predetermined posture and position. A light-emitting part and a light-receiving part facing each other are disposed at least at a portion corresponding to the sides in the width direction of the brush bristle part in such a manner that the amount of light received by the light-receiving part is reduced by the fallen brush bristles of the brush bristle part. In addition, a mechanism for determining whether the brush bristles are good or bad based on the amount of light received by the light receiving section and a mechanism for displaying the determination result of this mechanism are provided.

In other words, by simply holding the brush in the frame, the falling state of the brush bristles can be detected without contact using the amount of light received by the light receiving section, even if the bristles are non-conductive. Furthermore, even in the case of soft brush bristles, the degree of fall of the brush bristles can be detected accurately, forcefully, and hygienically with a simple operation. Therefore, it can be used for brushes that require hygienic management, such as medical brushes and cooking brushes, and the range of application has become sufficiently wide.

Hereinafter, implementation of the present invention will be explained based on the drawings.

As shown in Figures 1 and 2, multiple toothbrushes (1)
・Toothbrush holder r leder with a holding part (2a) that can store and hold it in a vertical position [7], and a door (2k) that can be opened and closed by swinging with a solid scale core at the top. A 4-watt germicidal lamp (3) is installed at the top of (2). As shown in FIGS. 3 to 5, the power supply circuit of this germicidal lamp (3) operates in conjunction with the opening/closing operation of the door (2A) when the door r2A) is open, and when the door (2A) The timer circuit A) and the relay (X
, ), and a lighting circuit fBl which is switched on and off by the circuits (5) and fBHd', respectively, are constructed as follows.

Turn off the timer circuit IA) (see Figure 4) and turn off the switch l'sW.
When C1) is charged with the voltage of Vcc and then turned on, a bias (base) current flows to the base of the transistor CTr+) via the capacitor (C3) and the color resistor (R1), and the transistors (Trr), (Trr), ( The current is amplified by (Try) and passed through the relay (Xl) to turn on the germicidal lamp (3).

The time to energize the relay (Xl) is determined by a time constant circuit consisting of a capacitor (C3), a resistor (R,), and a force (R,), and the variable resistance (R1) is changed from OΩ to Jt) kΩ. Accordingly, the discharge resistance changes between Ω to J and 2 to Ω, and a change range of maximum setting time 2−minimum setting time /k can be obtained as a time ratio.

f4tl Notes 4 - (SVb)ld, IJ L
Even if /-(x,) is energized (capacitor (C1) is discharging), when it is turned off, relay (Xl) I/'i becomes de-energized. (still.

During this off time, the capacitor (cl) is recharged, so when the timer is turned on again, the one-hour timer starts from the beginning. ) When the switch (sw*) is turned off, even if the relay (X,) is energized, the relay (X,) becomes de-energized. (However, for one hour timer, switch (SW*)
The transistor (Trs) is set by the variable resistor (R1) regardless of whether it is on or off, and the transistor (Trs) is turned off by the switch (SWl) after a set time from the time when the start IIM is started. ) In the figure, (R,)u, ) transistor (Trr), (r
relay (X
This is to prevent rc
, ), (cs) are capacitors for preventing vibrations of the relay (X, ) caused by AC induction.

Lighting circuit (B) [See Figure 5] The collector winding is connected between j and J of the oscillation transformer (4), and the collector winding is connected between θ and J.
This is a so-called blocking oscillation circuit with a base feedback winding between the two and a base feedback winding, and is configured so that the oscillation output is boosted by the secondary winding (θ-Xl)0) to turn on the germicidal lamp (3).

In addition, CR in the figure is the base resistance for starting oscillation, and (C
4) is a capacitor for blocking 1 government current component 6 Also, both of these (Re) and rc+) are oscillation transformers (4)
It is also an element that determines the oscillation frequency based on the -order equivalent inductance of .

The toothbrush holder (2) and the door (2A) #i should be manufactured using materials that are superior in terms of cost, surface finish, appearance, etc., but preferably are made of materials that do not transmit ultraviolet rays, and
It is better to make it from a material 23 that has excellent UV resistance.If it is made from such a material, it is possible to prevent or suppress deterioration and discoloration of the holder (2) and the door (2A) themselves. This has the advantage of preventing or reducing the leakage of ultraviolet rays and improving safety.

The above R (2A) may be configured as either a sliding type opening/closing type or a removable opening/closing type, although it is limited to a swinging type as in the above embodiment. (swl) is turned ON, and by further pushing the closed door (2A) one more step, the switch (SW, ) is turned ON.

(SW*) may be configured to be turned on and off in conjunction with a series of opening and opening operations of the door (2A).

Killing effect The table below shows the results of the National Health Test by the Ministry of Health and Welfare regarding the bactericidal power of germicidal lamp (3).

Test condition.

The lamp used was d/J watts, and the bacteria on the agar medium were irradiated from a distance of 50 cm, the equipment was at the same level, and the germicidal radiation irradiance was /, J'? The table is on the next page\ As is clear from this table, germicidal lamps have a strong sterilizing effect against all types of bacteria in a short period of time.

Similarly, in the above embodiment, Dawat's germicidal lamp (3) is used, but this germicidal lamp (3) is attached to the toothbrush holder (2).
), it is possible to expect almost the same sterilization effect as shown in the table above, since it is arranged in a relatively limited and narrow space.

Next, to configure a toothbrush bristle fall detection device that is integrally assembled with such a toothbrush holder, as shown in FIGS. 6 to 8, the toothbrush holder (2) is equipped with
A frame body (6) that can be detachably held in a predetermined posture and position by contacting the bristle part (1a) of the toothbrush +11 with the bristle part (1b) is provided in series, and the frame body (5) , light-emitting parts (6A), (6B) and light-receiving parts (6A) and light-receiving parts (6A) and (6B) facing each other in the longitudinal direction of the brush bristles (1b) are respectively placed on both sides of the brush bristles (1b) held by the brush bristles (1b) in the lateral direction. 7A), (
7B) are arranged in such a manner that the amount of light received at the light receiving sections (7A) and (7B) is reduced due to the fallen brush bristles of the brush bristle section (1b), and the light receiving sections (7k) and (7B)
The mechanism (8) that determines whether the brush bristles (1b) are good or bad based on the detected amount of light received at the #! ! 1g+'l'l
A mechanism (9) for displaying results by J is provided.

The light emitting sections (6A) and (6B) are each composed of an incandescent light bulb, and the light receiving section (7k1. (7B) is each composed of a phototransistor.

A space in which the light emitting parts (6A), (6B) are arranged and the light receiving parts (7A), r7B) of the rod (5) are arranged,
In addition, the space forming the holding portion of the toothbrush 11) is communicated with through slits formed at both sides of the brush.

The flJ separate mechanism (8) is constructed as follows.

That is, when the toothbrush (1) is in a good condition as shown in FIG.
Since the amount of light received by r7B) is large, its emitter potential rises, transistors (Tra), rTrs'') and (Try), (Try) are turned on, and the base vl current of transistors (Trm) and (Tra) increases. Both become zero and the transistor (T "1") is turned off.

In addition, in a defective state where the degree of fall of the brush bristles exceeds the usable range, the amount of light received by the phototransistor (7A) or (7B) or both of them decreases, and the emitter current of the phototransistor (7A) or (7B) decreases, causing the transistor ( Tra), (
Tr s ) or (Tr e ), (Tr r )
Eventually, both of these will turn off, and the transistor (Tr) will turn off.
y) or (Tr-) or both, a current flows through the resistor (R1) or (R1) or both, and the transistor (Trto) is turned on. When turned off, the transistor (Trl) configured with Darlington coupling
, ), (Trl*) are also turned off, and the relay (Xt) becomes de-energized. Then, a blinking red lamp (9A), a continuously lit blue light emitting diode (9B), and a buzzer (9C) that operates when the red lamp (9A) blinks, which are the constituent members of the display mechanism (9), Among them, the blue light emitting diode (9B) becomes energized,
A message indicating that the brush bristles are "good" is displayed.

(7F When the transistor (Trr.) is turned on, current flows to the base of the transistor (Trn') via the resistor (R1), and the transistors (Trn) and (Trn)
The relay (X,) is energized by turning on. Then.

The red lamp (9A) of the display mechanism (9) and the buzzer (
9C) becomes energized, and a message indicating that the brush bristles are defective is displayed.

Also, when the transistor (Trr.) is switched from on to off, the 1 charged in the capacitor (C1) is transferred to the capacitor (C1) via the transistor (Tr lt), (Tr o) and the resistor (R1). The transistors (Tria) and (Tri
a) continues to be on, and then the transistor rTr
11).

rTru) #': t turns off.

In Figure 1 (R tube) is the discharge circuit C of the capacitor (C6).
This variable resistor is used to add a discharge circuit to R□Tro, Tr□), and by changing its value, the delay time can be changed.

(R3゜), (R,,) are variable resistors for sensitivity adjustment, and the slider is connected from the ground side to the phototransistor (7A
), r7B), the sensitivity becomes gradually smaller. The blinking circuit fcl for the red lamp of the display mechanism (9) is constructed as follows.

That is, as shown in Fig. 8, a non-inverting amplifier circuit is constructed in which the base of the transistor (Tr) is the input terminal and the collector of the transistor (Trll) is the output terminal. A bias resistor (R11) is provided so as not to be in the saturation region, and the transistor (Tr□) is connected from the collector of the transistor (Trla) to the transistor (Tr□).
A positive feedback circuit consisting of an electrolytic capacitor (C6) and resistors (R, . . . ) is connected to the base of the circuit to form a rectangular wave oscillation circuit.

The on time of the transistor (Tria).

The lighting time of the red lamp (9A) is almost the same as the capacitor (C6).
) and the resistor (R,,), and the off time of this transistor (Tru'l, that is, the turn off time of the red lamp [9A) is determined by the time constant of the capacitor (C6) and the resistor (R,,). determined by the time constant of

It is.

In the above-mentioned embodiment, the brush bristle fall detection device is attached to the toothbrush holder (2), but the brush bristle fall detection device may be configured and implemented independently.

Of course, the brush bristle fall detection device of the present invention can also be applied to medical brushes, cooking brushes, etc. other than toothbrushes.

FIG. 9 shows another embodiment, in which the width of the toothbrush holder (5a) can be adjusted to accommodate the type of toothbrush (1) by forming the frame (5) with a toothbrush holding part formed with four members. It is designed so that it can be changed freely depending on the situation.

[Brief explanation of drawings]

Figures 1 and 2 are a perspective view and a front view of the toothbrush holder.
Figure 3 shows an overview of the germicidal lamp and brush bristles fall detection device.
I18 electrical circuit diagram, Figure 4 is the timer circuit diagram of the germicidal lamp,
Figure 5 is a lighting circuit diagram of a germicidal lamp, Figure 6 is a brush capillary 71
．． # A cross-sectional plan view of the extension bar, FIG. 7 is a discrimination circuit diagram, FIG. 8 is a flashing circuit diagram for red lamps, FIG. 9 is a cross-sectional plan view showing another embodiment, and FIGS. 10 and 11 are It is a diagram showing comparative examples. fl)...Brush, (1b)...Brush bristles. (5)... Frame body, (6k)... Light emitting section, (7A)... Light receiving section, (8)...
・・Discrimination mechanism, (9) ・・Display mechanism, (arc)・
...Red lamp, r9B) ...Blue light emitting diode, (9C) ...Buzzer.

Claims (1)

[Claims] ■ A frame (6) that can detachably hold at least the brush bristles (1b) of the brush f+1 in a fixed posture and position.
A light emitting part (6A) facing opposite to at least a portion corresponding to the width direction side side of the brush bristles (1b) held therein.
and a light receiving section (7A) are arranged in such a state that the amount of light received at the light receiving section (7A) is reduced due to the fallen brush bristles of the brush bristle section (1b), and the detection light reception at the light receiving section (7A) is A mechanism for determining the quality of the brush bristles (1b) from the amount (
8) and a mechanism (9) that displays the discrimination results of this mechanism (8).
What is claimed is: 1. A brush bristle fall detection device comprising: ■ The display mechanism (9) is a blinking red lamp (9A)
The brush bristles according to claim 0, comprising a blue light emitting diode 1'' (9B) that lights up continuously, and a buzzer (9C) that operates when the red lamp (9A) blinks. Fall detection device.