JPH03218791A - Electric razor - Google Patents

Abstract

PURPOSE:To allow a user to recognize a cleaning time and an inspection time of a blade by providing a control means for operating a display of the cleaning time and a display of the blade inspection time in a display means, respectively at the time corresponding to setting of density of a beard in a setting means. CONSTITUTION:When a display indicated with an index 61d of a beard density display part 61 of a display device 6 is set to desired density by operating a setting switch 2, a value corresponding to this density is set as each different time to time setting parts 92, 93. When shaving is started, a time count by a counter 94 is started, and this count value is integrated to integrating parts 95, 97. When the value integrated to the integrating part 95 exceeds a value set to the time setting part 95, by receiving a rise of an output of a comparing part 96, a driving circuit 90 executes a cleaning demand display to a display part 62. Subsequently, when a value integrated to the integrating part 97 reaches a value set to the time setting part 93, by receiving an output of a comparing part 99, the driving circuit 90 operates a display part 63, and demands an inspection and a change of the blade.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an electric shaver.

[Conventional technology]

Electric razors store beard shavings inside the razor when shaving, so beard shavings must be cleaned regularly to prevent them from falling out of the outer blade hole or from gaps in the outer blade frame. Not only will it spill out, but it will also stick to the inner blade and cause it to become dull. Additionally, the blade gradually loses its sharpness due to wear, so it is necessary to replace it at an appropriate time.

[Problem to be solved by the invention]

However, with conventional electric razors, you cannot usually tell how much beard debris has accumulated inside the razor, and
Even if you know that it is best to clean the knife after 2 or 3 uses, you often forget how many times you used it, so you may miss the cleaning time and end up with shavings spilling out or the knife becoming dull. Sometimes it happens. Also, when it comes to replacing blades, if you use the blade for a long time, the memory of how sharp it was in the beginning will fade, so you may end up continuing to use a blade that has lost its sharpness. The present invention has been made in view of the above, and its purpose is to make the user aware of when it is time to clean, thereby preventing the spillage of beard crumbs and the loss of sharpness. To provide an electric shaver that not only reduces the number of blades but also allows the user to recognize when it is time to inspect the blades.

[Means to solve the problem]

Therefore, the present invention includes means for setting the thickness of the beard, and display means for displaying the cleaning time and the blade inspection time, and
The present invention is characterized in that it includes a control means for operating the cleaning time display and the blade inspection time display on the display means, respectively, at a time corresponding to the setting of beard density in the setting means. [Function] According to the present invention, since the cleaning reminder display and the blade inspection display are displayed at a predetermined time, there is no need to miss the cleaning time or blade replacement time, and these displays are made based on the thickness of the beard. Each indication is always made at the appropriate time. [Embodiment 1] The present invention will be described in detail below based on the illustrated embodiment. As shown in FIGS. It is equipped with a switch handle 3 which is freely movable, and a display device 6 consisting of a liquid crystal display panel is arranged on the lower front side of the switch handle 3, and furthermore, a setting switch 2 and a reset switch 7 are provided on the lower side of the display device 6. are arranged. Further, a trimmer blade 5 is provided at the upper part of the switch handle 3 so that it can be raised and lowered. This trimmer blade 5 is connected to the switch handle 3
It can be raised and lowered by sliding it up and down. In the figure, 30 is a lock handle, and 43 is a button for attaching and detaching the outer cutter frame 4o that holds the outer cutter 41 of the main cutter 4. As shown in FIGS. 3 and 4, the display device 6 includes a built-in storage battery (2) remaining capacity display section 6o, a beard density display section 61, a cleaning reminder display section 62, and a blade inspection display section 6o. The beard thickness display section 61 has three displays 61a, 6lb, and 61c for thin beard, normal beard, and thick beard, and
It is formed with an indicator 61d indicating which darkness is set, and as shown in FIG. 5, it is installed behind a transparent panel 65 provided on the front side of the main body l. Incidentally, FIG. 4 shows a state in which the darkness of the buttocks is set. Further, as shown in FIGS. 5 and 6, the setting switch 2 and the reset switch 7 are connected to a conductive pattern 11, 11 on a printed circuit board 10 disposed inside the main body 1, a conductive rubber 21, and a reset switch. It is composed of an insulating rubber 22 that also serves as a spring and has a conductive rubber 21 attached to one side, and a pin 23. The pin 23 is slidably held by the main body 1 and has one end surface exposed on the surface of the main body 1. When pushed against the elasticity of the insulating rubber 22, the conductive rubber 2l short-circuits the conductive pattern 11. The heads of the pins 23 of these switches 2.7 are located below the surface of the main body 1 to prevent them from being turned on or off inadvertently. Then, on the printed circuit board 10 inside the main body l, a first
The control processing circuit 9 shown in the figure is implemented. This control processing circuit 9 receives signals from a display drive circuit 90, a density setting signal processing section 9l that detects on/off of the setting switch 2 and forms a density setting signal, and a density setting signal processing section 91. Hourly question setting section 92.9 that sets a predetermined value according to
3, a counter 94 that starts and stops counting time by turning on and off the main switch SW using the switch handle 3, and an integrating section 9 that adds up the time measured by the counter 94.
5.97, the value of the integrating section 95 and the value set in the time setting section 92 are compared, and the value of the integrating section 95 is determined as the value set in the time setting section 9.
A comparison section 96 outputs an output to the display drive circuit 90 if the value exceeds the value set in 2, and a value of an integration section 97 and a time setting section 9.
3 and outputs an output to the display drive circuit 890 if the value of the integration section 97 is equal to or greater than the value set in the time setting section 93, the integration section 9597 and the display drive The circuit 90 includes a reset section 98 that outputs a reset signal to the circuit 90. Now, if you operate the setting switch 2 and set the desired density to the display indicated by the indicator 61d in the beard density display section 61 on the display device 6,
A value corresponding to this density, for example, 15 minutes when set to light, 8 minutes when set to back-through, and 6 minutes when set to dark, is set in the time setting section 92, and the time setting section 93 also has a value according to the beard density setting,
For example, a value of 720 minutes is set for the normal and light settings, and a value of 540 minutes is set for the dark setting. In this state, if you turn on the switch SW by operating the switch handle 3 and start shaving, the counter 94 starts counting the time, and this count value is stored in the integrating section 95.
．． It is accumulated to 97. This integration may be performed in parallel with the counting, or may be performed at the time when the switch SW is turned off. If the value integrated in the integration section 95 exceeds the value set in the time setting section 92, the comparison section 9
In response to the rise of the output 6, the display drive circuit 90 displays a cleaning reminder on the cleaning reminder display section 62. This reminder display can be performed by blinking the figure shown in the figure, displaying a figure that was previously hidden, or conversely, erasing a figure that was previously displayed. If you clean the beard debris in response to the cleaning reminder display, the reset section 9 will reset the falling edge of the signal by operating the reset switch 7.
8 is detected, clears the integration section 95, and returns the cleaning reminder display to the normal state through the display drive circuit 90. The integrating section 95 may be reset when the outer cutter frame 40 is removed for cleaning. Incidentally, the integrating section 97 is not reset at this point. and,
When the value integrated in the integration section 97 reaches the value set in the time setting section 93, the display drive circuit 90 receives the output from the comparison section 99 and operates the blade inspection display section 63 to check the blade inspection. Encourage inspection and replacement. The reset unit 8 can be reset to clear the integration unit 97 and restore the blade inspection display unit 63 only when the reset switch 7 is pressed three times within a predetermined period of time (for example, 2 seconds). It outputs a reset signal. Note that since shaving usually ends within 3 minutes, the switch SW is turned on for a predetermined period of time, for example 5 minutes.
When exceeding minutes, it is preferable from the point of view of accuracy not to count the excess time. Also, the time may not be counted even when the switch SW is turned on again at a predetermined time interval (for example, more than 5 minutes but less than 1 hour).This is because most of the beard can be shaved off by the first use. Because the amount of beard that grows in one hour is small,
This is because the accuracy will be higher if you ignore it. Furthermore, when the setting of the beard density is changed during time accumulation, the value set in the time setting section 92.96 is changed, and at this point the value of the accumulation section 95.97 is changed to the value set in the time setting section 92.96. When the value newly set in 96 is exceeded, it is recommended that a cleaning reminder or blade inspection display be displayed immediately. The value set in the time setting section 92 is the beard shavings storage capacity of the electric razor and the amount of shavings accumulated in one shave, for example, 60" for a person with a thick beard [l+g 45-g for a thin person, and 20-g for a thin person.Also, the cleaning reminder display and blade inspection display may be in the form of displaying the remaining time. Although the cleaning reminder display and the blade inspection display are shown above, the display may be performed depending on the number of times the switch SW is turned on and off.In this case, if the beard density is set to be thick, When the cleaning reminder is set to normal and thin, the cleaning reminder is made after 3 and 6 uses, respectively, and the blade inspection display is also set to the number of times depending on the durability of the blade.

【Effect of the invention】

As described above, in the present invention, at a predetermined time,
The display reminding you to clean and inspecting the blade prevents you from missing the cleaning period or continuing to use a blade whose sharpness has deteriorated, resulting in hair shavings spilling out or the blade becoming dull. The user will have to clean or replace the blade before the hair becomes dry, and since the reminder to clean and the blade to be inspected will be displayed depending on the thickness of the beard, the display will always be displayed at the appropriate time. is to be done,
There is no unnecessary increase in the number of cleanings and blade replacements.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram of an embodiment of the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a front view of the same, FIG. 4 is a partially enlarged front view of the display device of the above, and FIG. Cross-sectional view of the same as above, No. 6
The figure is an exploded perspective view of the setting switch and reset switch as described above, in which 1 is the main body, 2 is the setting switch, 6 is a display device, 9 is a control processing circuit, 62 is a cleaning reminder display section,
63 indicates the blade inspection display section.

Claims (1)

[Claims] (1) A means for setting the thickness of the beard, and a display means for displaying the cleaning time and the blade inspection time, and displaying the cleaning time on the display means at a time corresponding to the setting of the thickness of the beard in the setting means. An electric shaver characterized in that it is equipped with a control means for respectively operating a blade inspection timing display and a blade inspection timing display.