JP2748138B2 - Small electrical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a small electric device such as an electric shaver or a portable radio, and particularly to a predetermined display operation for a user before starting use of the device. Regarding what to do.

[Prior art] Conventionally, this kind of small electric equipment is premised on that an operator takes it directly from a store to a house and starts operation in accordance with an instruction manual describing precautions necessary before use. Things were common.

[Problems to be Solved by the Invention] However, since the purchaser wants to use the product as soon as possible, the purchaser is not aware of the precautionary statements such as manuals.
As a result of starting the operation on its own discretion, there is a possibility that the device is judged to be defective regardless of its own operation error, or even the device may be erroneously operated and the device may be damaged.

For example, rechargeable electrical equipment is shipped with a sufficient charge of the built-in rechargeable battery before shipment at the factory, but if the storage period at the warehouse or the store at the store, exhibition period is long, The self-discharge of the rechargeable battery itself progresses, and even if the rechargeable battery is used immediately after purchase, the device does not operate normally due to a shortage of charge, and the purchaser has a problem of returning as a defective or faulty product.

The present invention has been made in view of such a problem,
An object of the present invention is to provide a small electric device in which an operation error can be prevented beforehand by displaying a message that actively alerts a user before using the device.

Another object of the present invention is to provide a small electric device having a configuration suitable for implementing the above object.

[Means for Solving the Problems] As shown in a schematic configuration in FIG. 1, a small electric device according to the present invention regulates an electric device main body that performs a predetermined operation and an operation start timing of the electric device main body. Means for generating a signal when the restriction means is operated to release the restriction on the electric device main body, and display means for performing a predetermined display in conjunction with the detection operation of the detection means. ing.

Here, the electric device main body described above may be a rechargeable electric device having a built-in rechargeable battery as a power supply, and the display unit may perform a display prompting charging of the rechargeable battery in conjunction with the detecting operation of the detecting unit. preferable.

The restricting means is an insulating claw that restricts the operation of the electric device body, while the detecting means is disposed between the rechargeable battery and the notification means, and a part of the claw fits between the contacts. A normally closed switch can be used.

The regulating means is a conductive adhesive seal that regulates the operation of the electric device main body, and the detecting means includes a normally closed contact interposed between the rechargeable battery and the notification means, and conducts the contact with the adhesive seal. It may be something.

Further, it is preferable that the display means performs utterance display of different contents in accordance with an input signal from the detection means.

[Operation] With the above configuration, before the use of the electric device main body is started, the normal operation of the electric device main body is restricted by the restricting means.

Here, when the restricting means is operated to release the restriction on the electric device main body, such a state is detected by the detecting means, and a predetermined signal is sent to the display means. Then, in the display means,
For example, it prompts the user to charge and actively displays the contents particularly important for the use of the electric device body to the operator.

As the restricting means, for example, a claw-shaped body for physically restricting the movement of a switch or the like of the electric device main body, and as the detecting means, a normally closed contact into which the claw-shaped body is fitted, thereby allowing the claw-shaped body to The contact is closed at the same time when the operation restriction is released by removing the operation restriction, and a signal is sent to the display means to notify the operation state of the restriction means.

In addition, by using a conductive seal and a normally open contact attached to the open / close lid, etc., before starting use of electrical equipment, the contacts are connected with a seal and turned on. The contact is turned off at the same time as the use restriction of the main body is released, and a signal is sent to the display means.

[Embodiment] Hereinafter, the present invention will be described with reference to an example in which the present invention is applied to an electric shaver shown in FIGS. 2 to 6, but is not limited thereto.
Needless to say, the present invention can be applied to various small electric devices such as a tape recorder, a camera, an electric massage device, a beauty device, an electric hair clipper, an electric toothbrush, a hair dryer, an electric nail polish or an electronic lighter.

An electric shaver 1 embodying the present invention includes an outer blade 3 and an inner blade 4 which is slidably moved inside the outer blade 3 at an upper portion of a main body case 2 as shown in an external shape in FIG. A main switch 5 is provided on the front side of the main body case 2, and a power supply plug 6 for charging is further provided at a lower position of the main body case 2, and an electric circuit shown in FIG. ing.

The electric circuit is powered by a rechargeable battery 7 such as a NiCd battery,
By energizing the rechargeable battery 7 to the motor 8 via the main switch 5, the inner blade 4 connected to the motor 8 is driven back and forth to perform a basic operation as the electric shaver 1.

An electric shaver 1 embodying the present invention has, in addition to the basic configuration described above, a charging unit 10 that enables charging of a rechargeable battery 7 and motor driving by a commercial AC power supply, and a motor 8 that controls an applied voltage to the motor 8. A motor control unit 11 for maintaining a constant rotation speed of the motor, a detection unit 12 for detecting a state of each unit and generating a signal corresponding to the detection content, and a detection unit 12
And a display unit 13 for performing a display corresponding to the signal output from the control unit.

The charging unit 10 once rectifies the commercial AC power input from the power plug 6 with the rectifier circuit 14,
The charging state is constantly monitored during charging by the charging state detection circuit 20 provided in the detection unit 12, and it is detected that the charging is completed by the detection circuit 20. Then, the oscillating operation of the inverter circuit 15 is limited or stopped to prevent the rechargeable battery 7 from being overcharged. The signal output from the detection circuit 20 is also sent to the display unit 13 at the same time to indicate that charging is completed.

Further, the detecting unit 12 includes a circuit 21 for detecting the discharging state of the rechargeable battery 7 to monitor the terminal voltage of the rechargeable battery 7. When the terminal voltage of the rechargeable battery 7 falls below the set value, a signal is displayed on the display unit 13. To indicate that charging is required.

On the other hand, the rotation speed of the motor 8 is monitored by the motor rotation state detection circuit 22, and when the detection circuit 22 detects that the rotation speed has greatly deviated from the specified value due to a change in load or a drop in battery voltage, Sends a signal to the motor control unit 11,
The control for automatically controlling the motor voltage and maintaining the rotation speed constant works. At the same time, a signal is sent to the display unit 13 to notify the control state of the motor rotation.

Further, a circuit 23 for detecting the operation state of the main switch 5
For example, when it is detected that the main switch 5 is turned off, power is supplied to the shaving detecting circuit 24 to perform shaving detection, and an output signal from the detecting circuit 24 is sent to the display unit 13,
Displays the degree of shavings.

As shown in FIG. 4, the display unit 13 enables a display corresponding to the content detected by the detection unit 12 by voice, and a microprocessor (MPU) 30 that controls the operation of the entire display unit 13. A data storage unit 31 that stores data corresponding to a series of sounds to be displayed, a voice synthesis circuit 32 that synthesizes a voice signal from data extracted from the data storage unit 31, and a An output circuit 33 converts the sound wave into an acoustic wave and outputs the sound wave.

The microprocessor 30 includes a central processing unit (CPU), a ROM
Alternatively, it is provided with a RAM and operates in accordance with a program stored in the ROM, and is supplied with power from the rechargeable battery 7 and always in a standby mode in a power saving state of waiting only for a signal input from the detection unit 12. Although it is operating, when the detection signal is input from the detection unit 12, the type of the detection signal is checked, and after performing a predetermined process such as a delay process corresponding to the type, the voice should be synthesized with the voice synthesis circuit 32. At the same time as specifying the type of audio data, a signal is sent to the output circuit 33 to turn on the output circuit 33.

The data storage unit 31 stores data corresponding to a series of voices such as `` please charge '' to be displayed in the output circuit 33, and the voice synthesis circuit 32 stores the data based on the data sent from the MPU 30. The data is appropriately extracted from the data storage unit 31, and the extracted data is voice-synthesized and converted into a predetermined voice signal.

The output circuit 33 includes a filter circuit 34 that removes high-frequency components from the audio signal, a circuit 35 that amplifies the audio signal, a speaker 36 that converts the audio signal into a sound wave, and a rechargeable battery 7 connected to the amplifier circuit 35 to turn on. The amplifier circuit 35 is always turned off by the switching circuit 37 so as to reduce the power consumption of the entire electric shaver as much as possible.

The present invention provides, in addition to the above configuration, means for regulating the start of use of the electric shaver 1 and for detecting whether or not the electric means has been operated to be ready for use as electric equipment. Means are provided.

Although the regulating means cannot be used as the electric shaver 1 without operating it, once it is operated, it becomes unnecessary in principle thereafter. As shown in FIG. 6, locking grooves 40 and 41 are provided through the main switch 5 and the main body case 2, and the leading ends of the claws 42 are inserted into the locking grooves 40 and 41. The movement of the switch 5 itself is regulated, and the start time of use as the electric shaver 1 is regulated.

That is, the main switch 5 has a switch knob 43 slidably disposed in the center of the front surface of the main body case 2 in a vertically slidable manner, and includes a leaf spring electrode 44 inside the main body case 2.
Further, a guide groove 45 is provided through the main body case 2, and a guide claw 46 and a moderation pin 47 extending from the back side of the switch knob 43.
Thereby, it is possible to shift with a sense of moderation between the central off position shown in FIG. 6 (b) and the on position of the lower end shown in FIG. 6 (c), and from the switch knob 43 toward the electrode 44. When the switch knob 43 comes to the ON position, the electrode 44 is pressed from above by the extending pressing piece 48, and the normally open contact can be turned on. Furthermore, the switch knob is
By disposing the display plate 50 urged in the 43 direction from the inside of the main body case 2 so as to be freely retractable, the display plate 50 moves following the shift of the switch knob 43, and the position of the switch knob 43 changes. A corresponding display is performed.

The switch knob 43 is further configured to be able to shift to a regulation position at the upper end beyond the central off position shown in FIG. 6 (a), and penetrates the switch knob 43 and the main body case 2 at the regulation position. Then, the strip-shaped locking grooves 40 and 41 are opened, and the tips of the claws 42 are fitted into the locking grooves 40 and 41.

The claw-shaped body 42 is formed entirely of a thin insulating plate, has a hinge portion 51 at the center, includes a grip portion 52 and an insertion portion 53, and displays on the surface of the grip portion 52 an instruction for removal and disposal. Have been.

In addition, a normally closed switch 55 having a switch contact 54 is provided in the body case 2 so as to approach the locking groove 41, and the insertion portion 53 of the claw 42 inserted into the locking groove 40 54 ・
The switch 55 can be turned off by fitting it between 54. Further, by interposing a switch 55 between the rechargeable battery 7 and the display unit 13, the contact 54
The detection signal is sent to the display unit 13 directly or through a predetermined circuit such as a differentiating circuit in conjunction with the ON operation of.

With the above configuration, when the electric shaver 1 is shipped from the factory, as shown in FIGS. 2 and 6 (a), the outer blade 3 is provided with the protective cover 60, and the cover 60 is sealed 61 with the main body case. It is locked to 2. Further, the men-in switch 5 raises the switch knob 43 to the upper limit regulating position, and fits the insertion portion 53 of the claw-shaped body 42 into the switch knob 43 and the locking grooves 40 and 41 provided in the main body case 2 to hold the same. The part 52 is bent from the hinge part 51.

Here, even if the purchaser of the electric razor 1 intends to start using the electric razor, the shift of the main switch 5 is restricted by the claw-shaped body 42, so that the electric razor 1 cannot be used. Then, when the claw 42 is pulled out in accordance with the precautionary statement written on the grip portion 52 of the claw 42 as shown in FIG. 6B, the movement regulation of the switch knob 43 is released, so that the display plate 50 is body
It is urged by 49 to protrude out of the main body case 2 to close the locking groove 41 and advance the switch knob 43 to a predetermined off position. At the same time, the switch contact 54 constituting the operation regulation state detection circuit 25 is closed, and a signal is sent to the display unit 13 to display a message prompting charging of the rechargeable battery 7. Thereafter, the switch knob 43 is freely slid between the OFF position in FIG. 6 (b) and the ON position in FIG. 6 (c), and the operation as a normal electric shaver is performed without any support.

FIG. 7 shows another embodiment of the present invention, in which a sticker 61 attached to the protective cover 60 of the outer cutter 3 at the time of shipment from the factory is used as regulating means, and a sticking position of the seal 61 is used as detecting means. The electrodes 62, 62 are disposed to form a normally open contact 63.

The electrode 62 also serves as decoration of the main body case 2. For example, a star-shaped metal plate is buried in the main body case 2 with a slight separation, and the electrodes 62 are interposed between the battery 7 and the display unit 13. doing. The seal 61 is conductive and has a protective cover 60.
At the same time, the cover 60 is attached to the main body case 2 to prevent the cover 60 from being removed, and the electrodes 62 are short-circuited. Therefore, when the seal 61 is removed and the protective cover 60 can be removed, the contact 63 is turned off and a signal is sent to the display unit 13,
The display unit 13 enables a predetermined voice display.

FIG. 8 shows still another embodiment, in which the seal 61 is used.
Is a magnetic rubber sheet, and a reed relay 70 is disposed in the main body case 2 as a detecting means. While the seal 61 is adhered to the protective cover 60, the reed relay is Although 70 is off, when the seal 61 is peeled off, the relay 70 is turned on and sends a signal to the display unit 13 to perform a predetermined display.

Note that the display unit 13 is exemplified by the display by voice, but the display is not limited to this, and the display unit 13 can be implemented by appropriately changing a light-emitting display by an LED, a character by a liquid crystal, or a display by a signal.

Furthermore, a plurality of types of regulating means are provided, and when at least one of the regulating means is operated, a predetermined display is performed so that the display can be performed reliably, or a different display corresponding to the type of the regulating means. , A complicated operation procedure may be divided and displayed.

[Effect of the Invention] As described above, the present invention actively reduces the number of operation errors or judgment errors caused by lack of information by actively displaying information to the operator prior to the start of use of the electric device main body. be able to.

Furthermore, by performing the above-mentioned display by voice,
There are many advantages such as easy understanding of display contents.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a basic configuration of the present invention. 2 to 5 show an example in which the present invention is applied to an electric shaver, FIG. 2 is a perspective view showing an external shape, FIG. 3 is a block diagram showing an entire configuration of an electric circuit, and FIG. 4 is a display. FIG. 5 is an exploded perspective view in which a part of a main part is cut away. 6 (a) to 6 (c) are cross-sectional views for explaining the operation of FIG. 7 and 8 are perspective views showing another embodiment of the present invention. 2 ... body case, 5 ... main switch, 7 ... rechargeable battery, 10 ... charging section, 11 ... motor control section, 12 ... detection section, 13 ... display section, 25 ... operation restriction state detection Circuit, 42 ... claw, 43 ... switch knob, 54 ... switch contact, 61 ... seal, 63 ... contact.

Claims (5)

(57) [Claims] An electric device main body for performing a predetermined operation, a means for restricting an operation start timing of the electric device main body, and a signal is generated when the restricting means is operated to detect that the restriction on the electric device main body is released. A small electric device comprising: a detection unit that performs the operation; and a display unit that performs display in conjunction with the detection operation of the detection unit. 2. The rechargeable battery according to claim 1, wherein the rechargeable battery includes a rechargeable battery as a power supply, and the display unit charges the rechargeable battery in conjunction with the detecting operation of the detecting unit. The small electric device according to claim 1, wherein a prompt is displayed. 3. The restricting means is an insulating claw (42) for restricting operation of the electric device main body, and the detecting means is disposed between the rechargeable battery (7) and the notifying means. The small electric device according to claim 2, wherein a part of the (42) includes a normally closed switch (55) fitted between the contacts (54). The regulating means is a conductive adhesive seal (61) for regulating the operation of the electric equipment main body, and the detecting means is interposed between the rechargeable battery (7) and the notifying means. 3. The small electric device according to claim 2, further comprising a normally open contact (63) conducted by a seal (61). 5. The small electric device according to claim 1, wherein the display means performs utterance display of different contents in response to an input signal from the detection means.