WO2014032236A1

WO2014032236A1 - Apparatus and method for detecting life of shaving blade, and shaving blade

Info

Publication number: WO2014032236A1
Application number: PCT/CN2012/080708
Authority: WO
Inventors: 任向荣
Original assignee: Ren Xiangrong
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2014-03-06
Also published as: CN103889667B; CN103889667A

Abstract

Disclosed are an apparatus for detecting the life of a shaving blade and a method for detecting the life of a shaving blade, and a shaving blade (100), used for alerting a user to replace a razor blade (14) of the shaving blade (100) when the razor blade (14) becomes blunt. The apparatus for detecting the life of a shaving blade (13) comprises a pressure sensor (21), an operating part (22), a processor (23), a memory device (24) and an alarm unit (25). When the shaving blade (100) is operating, the pressure sensor (21) detects the resistance of the razor blade (14) against the object being shaved to obtain a handling signal Su. The processor (23) is connected with the pressure sensor (21) and the operating part (22) and compares the handling signal when in use with a handling signal from the initial time of use, thereby judging whether or not the razor blade (14) is blunt, and if the razor blade (14) is blunt, controls an alarm from the alarm unit (25) to warn the user to replace the razor blade (14) in time.

Description

Shaver life detecting device, detecting method and razor thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a razor, and more particularly to a razor that can detect the life of a razor blade and alert the user to replace the blade when the blade of the razor becomes dull. Background technique

When the razor is used for a long time, the blade will become dull and the blade needs to be replaced. However, the blade becomes dull and accumulated over a long period of time. People are often not noticeable during use, and the more blunt the blade, the more force the shaving needs. Large, when the blade wears to a certain extent, the force required for shaving is too large, making the skin feel uncomfortable or even scratching the skin.

Therefore, there is an urgent need for a razor that can detect the wear of the blade and remind the user to replace the blade when the blade becomes dull. A shaving device is disclosed in the patent document CN95194471.1, which is close to the blade. a polymeric shaving aid tape is provided at the location, the polymeric shaving aid tape comprising an outer shaving aid layer dyed with different colors and an inner shaving aid layer, the outer shaving when shaving The auxiliaries layer gradually exudes polyethylene oxide and wears at the skin anastomotic surface to expose the inner layer, at least the user's shaving unit and/or skin anastomotic component have reached their useful life. The above shaving apparatus detects the life of the razor blade by observing the degree of wear of the polymer shaving aid belt, however, the material constituting the outer shaving aid layer is oozing out of polyethylene oxide at different water temperatures. Different rates will not only result in inaccurate razor life test results, but also often appear when the razor blade is relatively new, the inner layer of the polymer shaving aid tape is exposed, and the life of the shaving device blade is detected. The polymer shaving aid tape is a disposable test article. After the inner layer of the polymer shaving aid tape is exposed and the blade is replaced, it is often necessary to replace the polymer shaving aid tape, which wastes resources.

Therefore, there is an urgent need for a flexible and accurate test result, and the user can promptly remind the user to replace the blade razor according to the blunt blade of the razor. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a razor life detecting device for detecting the degree of wear of a razor blade and alerting the user to replace the blade when the blade of the razor becomes dull.

Another object of the present invention is to provide a razor detecting method for detecting the blade wear of a razor and alerting the user to replace the blade when the blade of the razor becomes dull.

Another object of the present invention is to provide a razor that alerts the user to replace the blade when the blade of the razor becomes dull.

In order to achieve the object, the present invention provides a razor life detecting device for prompting a user to replace a blade when the blade of the razor becomes dull, the razor life detecting device comprising a pressure sensor, an operating member, a processor memory and an alarm unit, the pressure sensor detecting a resistance of the blade to the object to be scraped when the razor is in operation to obtain a feel signal; operating the operation member to obtain a recording command; the processor and the pressure The sensor is connected to the operating member, and stores a hand sensing signal obtained by the pressure sensor when the blade is first used to obtain a first hand sensing signal according to the recording command, and the processor compares the hand sensing signal obtained by the pressure sensor with the stored First sensing signal to obtain a blade wear value, and issuing an alarm signal when the blade wear value exceeds a predetermined range; the memory being coupled to the processor and storing the first touch signal; the alarm unit and the processing The devices are connected and alarmed according to the alarm signal.

The pressure sensor in the razor life detecting device of the present invention is used for detecting the contact force between the blade and the object to be scraped when the user shaves using the razor to obtain the hand feeling signal, comparing the hand feeling signal during use and the initial use. The hand signal is then determined to determine whether the blade is dull, and the alarm unit is controlled to alarm when the blade becomes dull to remind the user to replace the blade in time. Wherein, the hand signal detected by the pressure sensor in the present invention is a pressure signal corresponding to the contact force between the blade and the object to be scraped, and is not necessarily equal to the contact force. Wherein, the object to be scraped refers to an object scraped by the blade when the razor is working, and may be skin, hair, fur, and the like.

Preferably, the predetermined range includes a predetermined range of multiple levels, and the processor outputs an alarm signal of a corresponding level when the blade wear value exceeds a corresponding predetermined range, and the alarm unit is different according to different The level alarm signal is alarmed accordingly.

Preferably, the alarm unit comprises an audible alarm and/or a display light alarm. Specifically, the alarm unit may be a buzzer, or may be at least one LED display light, or an electronic display screen.

Preferably, the operating member is a button or a switch.

Preferably, the pressure sensor is a capacitive/resistive pressure strain sensor.

The present invention also provides a razor comprising a cutter head, a shank and the razor life detecting device, the blade having a blade mounted thereon and mounted on the shank. The razor of the present invention can judge the degree of wear of the blade by comparing the hand signal during use with the hand signal at the time of first use, thereby issuing an alarm to remind the user to replace the blade in time when the blade wear exceeds a predetermined value. Wherein, the hand signal detected by the pressure sensor in the present invention is a pressure signal corresponding to the contact force between the blade and the object to be scraped, and is not necessarily equal to the contact force.

Preferably, the razor life detecting device is partially mounted in the shank, and the operating member is exposed.

Specifically, one end of the cutter head is engaged and received in the shank, and the other end is exposed outside the shank.

Specifically, the pressure sensor in the razor life detecting device is installed between the cutter head and the shank, and the blade pair is scraped by detecting the pressure of the shank against the shank when the razor is working. The resistance of things. Of course, the pressure sensor may also be installed between the blade and the cutter head. Preferably, the razor further includes an adjustment button for adjusting a predetermined range for determining the wear value of the blade, and adjusting The size of the predetermined range can be set according to the user's need to set the blade wear degree limit that needs to be alarmed, and the detection is flexible.

The invention also provides a razor life detecting method, comprising the following steps:

(1) detecting and recording the resistance of the blade to the object to be scraped when the blade of the razor is used for the first time to obtain the first hand signal;

(2) detecting the resistance of the blade to the scraped object when the razor is used in subsequent use to obtain a hand feeling signal;

(3) comparing the hand signal and the first hand signal to obtain a blade wear value, and at the blade Alarm when the wear value exceeds the predetermined range. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a razor according to the present invention.

2 is a block diagram showing the structure of the razor life detecting device of the present invention. detailed description

The detailed description of the technical contents, structural features, objects and effects of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to Figures 1 and 2, the present invention discloses a razor 100 comprising a cutter head 11, a shank 12 and the razor life detecting device 13, on which the blade 14 is mounted, and The cutter head 11 is mounted on the shank 12.

Preferably, referring to Fig. 1, the razor life detecting device 13 is partially mounted in the shank 12. Specifically, one end of the cutter head 11 is engaged and received in the shank 12, and the other end is exposed outside the shank 12.

Referring to FIG. 2, the razor life detecting device 13 includes a pressure sensor 21, an operating member 22, a processor 23, a memory 24, and an alarm unit 25, and the pressure sensor 21 detects the pair of blades 14 when the razor 100 is in operation. The person is scraped by the scraping force to obtain the hand feeling signal Su; operating the operating member 22 to obtain a recording command Sr; the processor 23 is connected to the pressure sensor 21 and the operating member 22, and stores according to the recording command The hand sensing signal Su obtained by the pressure sensor 21 when the blade is first used obtains the first hand sensing signal Sr, and the processor 23 compares the hand sensing signal Su obtained by the pressure sensor 21 with the stored first hand sensing signal Sr to form a blade. a wear value Sc, and outputting an alarm signal Sa when the blade wear value Sc exceeds a predetermined range; the memory 24 is connected to the processor 23, and stores the first touch signal Sr; the alarm unit 25 and the The processor 23 is connected and alarmed according to the alarm signal Sa. In operation, the operating member 22 is operated to start shaving, and the processor 23 receives the first touch signal Sr detected by the pressure sensor 21 according to the recording command Sr, and delivers it to the memory 24 for storage; during subsequent shaving, processing The device 23 receives the touch detected by the pressure sensor 21 Signal Su, and comparing the hand sensing signal Su obtained by the pressure sensor 21 with the stored first hand sensing signal Sr to form a blade wear value Sc, and outputting an alarm signal Sa when the blade wear value Sc exceeds a predetermined range, the alarm Unit 25 alerts according to the alarm signal Sa.

Preferably, referring to FIG. 1, the pressure sensor 21 is mounted between the cutter head 11 and the shank 12, and the shaving is obtained by detecting the contact force of the cutter head 11 against the shank 12 when the razor 100 is in operation. The resistance of the knife 15 to the person being scratched. The specific mounting position of the pressure sensor 21 is determined by the direction of the force when the blade 15 is in operation.

Preferably, the alarm unit 25 is at least one LED display light, the operating member 22 is an operation button 22, and the pressure sensor 21 is a capacitive/resistive pressure strain sensor. And the alarm unit 25 and the operating member _{22 are} exposed.

Preferably, the predetermined range includes a predetermined range of multiple levels, and the processor 23 outputs an alarm signal Sa of a corresponding level when the wear value of the blade 15 exceeds a corresponding predetermined range, and the alarm unit 25 according to different levels The alarm signal Sa is correspondingly alarmed. In this embodiment, there are four predetermined range values, which are arranged from small to large as: a first predetermined range value, a second predetermined range, a third predetermined range, and a fourth predetermined range, The police unit 25 includes four LED display lights. When the wear value is greater than or equal to the first predetermined range, the processor 23 sends a first alarm signal, and the first LED display light is illuminated; when the wear value is greater than When the second predetermined range is equal, the processor 23 sends a second alarm signal, and the second LED displays a light. When the wear value is greater than or equal to a third predetermined range, the processor 23 issues a third alarm. The third LED display lamp emits light; when the wear value is greater than or equal to a fourth predetermined range, the processor 23 issues a fourth alarm signal, and the fourth LED displays a light.

Preferably, the razor 100 further includes an adjustment button (not shown) for adjusting a predetermined range for determining the wear value of the blade.

The invention also discloses a razor life detecting method, comprising the following steps:

(2) detecting the resistance of the blade to the scraped object when the razor is used in subsequent use to obtain a hand feeling signal; (3) Comparing the hand signal and the first hand signal to obtain a blade wear value, and alarming when the blade wear value exceeds a predetermined range.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the scope of the present invention remain within the scope of the present invention.

Claims

Rights request

1. A razor life detection device used to remind the user to replace the razor blade when the razor blade becomes dull, characterized by: including:

A pressure sensor that detects the resistance of the blade to the object being shaved when the shaver is working to obtain a hand feel signal;

an operating member, which is operated to obtain a recording command;

A processor, connected to the pressure sensor and the operating member, stores the feel signal obtained by the pressure sensor when the blade is used for the first time according to the recording command to obtain the first feel signal; compares the feel signal obtained by the pressure sensor with the stored The first touch signal is used to obtain the blade wear value, and an alarm signal is issued when the blade wear value exceeds a predetermined range;

A memory, connected to the processor, and stores the first touch signal;

An alarm unit is connected to the processor and issues an alarm based on the alarm signal.

2. The shaver life detection device according to claim 1, characterized in that: the predetermined range includes predetermined ranges of multiple levels, and the processor outputs the corresponding level when the blade wear value exceeds the corresponding predetermined range. alarm signals, and the alarm unit reports accordingly according to alarm signals of different levels.

3. The shaver life detection device according to claim 1, characterized in that: the alarm unit includes an audible alarm and/or a display light alarm.

4. The shaver life detection device according to claim 1, characterized in that: the operating member is a button or a switch.

5. A shaver, characterized by: including:

A cutter head, with a blade installed on the cutter head; A tool handle, the tool head is installed on the tool handle;

The shaver life detection device according to any one of claims 1-4.

6. The shaver according to claim 5, characterized in that: the shaver life detection device is partially installed in the handle, and the operating member is exposed to the outside.

7. The shaver according to claim 6, characterized in that: one end of the cutter head is engaged and contained in the handle, and the other end is exposed outside the handle.

8. The shaver according to claim 6, characterized in that: the pressure sensor in the shaver life detection device is installed between the cutter head and the handle. When working, the pressure of the cutter head on the handle creates the resistance of the blade to the object being scraped.

9. The shaver according to claim 5, further comprising an adjustment button for adjusting a predetermined range for judging the blade wear value.

10. A shaver life detection method, characterized by: including the following steps:

(1) Detect and record the resistance of the razor blade to the object being shaved when the razor blade is used for the first time, so as to obtain the first feel signal;

(2) Detect the resistance of the blade to the object being shaved during subsequent use of the razor to obtain hand feel signals;

(3) Compare the hand feel signal and the first hand feel signal to obtain the blade wear value, and alarm when the blade wear value exceeds the predetermined range.