TW307708B - - Google Patents

Abstract

A safety razor blade unit has a guard (2), a cap (3), and three parallel blades (11, 12, 13) mounted between the guard and cap, at least one of the blades, guard and cap being movable from a non-shaving position to modify a blade exposure dimension, and to attain a modified blade geometry in which the exposure of the first blade (11) is not greater than zero and the exposure of the third blade (13) is not less than zero. At least one of the cap (2) and guard (3) can be movable against the force of a spring (20 or 21) from a non-shaving position in which all the blades between the guard and cap have their edges disposed below a plane tangential to the skin contacting surfaces of the guard and cap. The blades can be independently sprung or carried for movement in unison on a carrier pivotally mounted in a frame of the blade unit.

Description

A7 B7 3G7. Fifth, the description of the invention (i The present invention is a safety razor, especially with regard to each blade set with multiple blades' limited parallel sharp knife blades continuously pass on the surface of the skin being shaved The present invention is applicable to a safety razor whose blade set is permanently attached to the razor handle, and a safety blade whose blade set is detachably mounted on the razor handle to replace when the blade becomes dull. In any example, Regardless of whether the blade set is immovably mounted on the razor handle or installed to be movable 'For example, under the influence of the force applied to the blade during shaving, the handle shall be used to move around the axis parallel to the blade, The invention is added. The invention has a special relationship with the relative positioning of the safety bayonet blade set combining three blades and the blade edge. The applicant's previous patent application No. PCT / US94 / 10717 is guided as follows. Group, when setting the knives according to the special geometric ring shape, that is, the knife with the first blade is closest to the shield to make it no more than zero exposed, and the third knife with the knife closest to the cover is limited With the exposure of not less than zero, the full shaving performance of the advancement can be obtained. In the most effective geometric configuration, the first or main blade has a negative exposure, which is in the range of 0 to 0.2 mm An absolute value, for the main blade span of about 0.7 mm, it should be equal to about _〇〇4 mm, the third blade has a positive value of not more than about + 0.3 mm (preferably less than +0.2 mm) 'Revealing' is for example around 0.06mm or + 0.09mm, and the second blade has a revealing of approximately zero, the span of the second and third blades are each 10 to 20mm, with a length of about 1.5mm It is better. For convenience, the geometry configuration described and applied in the previous application mentioned above is referred to as &quot; target geometry of the blade. For further information and details on blade geometry, please refer to earlier The content of the patent application filed has been incorporated into this abandonment for reference. (Please read the precautions on the back before filling out this page). Installed. Printed by the Consumer Cooperative of the Central Provincial Bureau of the Ministry of Economic Affairs-4 A7 B7 V. Description of the invention (2) The blade is revealed (definition (tangent tangent to the blade) The surface of the surface of the component's wide contact surface 'is followed by the front of the knife and the second is the vertical rotation or height of the knife measured on the back of the knife. If the blade is above this plane, it is more than the tangent plane Close to the surface of the skin to be scraped, the measured value is a positive number, or if the blade is below this tangent plane, that is, the skin is wider than the tangent plane, the measured value is-a negative number.-The span of the blade is along The distance between the skin contact element in front of the knife and the knife-the tangent line is the distance from the knife to the element. The three-blade geometry detailed above applies to the blade set, where each blade is For those who are immovable installers based on guards and covers, preliminary or static geometry can also be applied to an example of a blade set where each blade is spring mounted and can be deflected under the force applied to the blade at the time. The Ministry of Economic Affairs, Central Ladder and Accreditation Bureau, Co-operative Consumer Cooperative printed this invention. It is recognized that the hope is that certain parts of the blade set are movable to other parts, and this is compatible without losing the advantages of the above blade geometry. Therefore, according to a preferred embodiment of the present invention, the provided is a safety cover including a shield, a cover, and a parallel sharp cutting edge (the second and third blades located between the shield and the cover in sequence) Blade &amp;, one of the components from the blade's guard and cover can be moved from the non-shaving position to change the blade exposure size of the blade set and obtain a modified blade geometry, where the first blade exposure is not Greater than zero 'and the exposure of the third blade is not less than zero' when at least one movable element is in the non-scratch position, at least one of the first and third blades has a different exposure. At least one of the above-mentioned elements can be used, for example Spring yellow is slightly offset from the initial non-scratch <position, the target geometry of the blade is not applicable at this place, but the paper size is used in the Chinese National Standard (CNS) A4 specification (2I0X297 company director) B7 when scraping Fives 3. Description of the invention (3) When the blade set is applied to the skin, the at least one element can be displaced to a position that results in the target geometry of the blade. The at least one element can include a shield and / or cover and / or a number of blades 0 According to another feature of the present invention, the provided is a safety razor blade set including a guard, a cover and multiple blades, each blade is continuously located between the guard and the cover and has a parallel sharp blade, at least protect One of the military and the cover can move against the spring force from a non-shaving position to a predetermined operable position, wherein, in the non-shaving position, each knife is placed on the surface of the shield and cover wide contact surface The modified blade geometry is obtained below one of the tangent planes. A complete understanding of the present invention can be obtained from the following detailed description, in which reference is made to the accompanying drawings, in each of the drawings: Figure 1 illustrates the appropriate period during shaving The geometry of the blade used is in accordance with Figure 2 of the earlier patent application No. PCT / US94 / 10717. Figure 2 is a cross-section through the first specific example of the present invention when not in use. Figure 3 shows the diagram 2 blade set, Each part occupies a different related position; FIGS. 4 and 5 are views corresponding to FIGS. 2 and 3 ′ showing the second specific example of the present invention, and FIGS. 6 and 7 are equivalent to FIGS. 2 and 3 and illustrating the first embodiment of the present invention. Eyes of three specific examples; Figures 8 and 10 are examples of different orientations of the shaver to the skin of the shaver. Figure 11 is a cross-sectional view through another specific example, showing the use of a cantilever as each blade Spring installation. -6- This paper scale is applicable to China National Standard (CNS) 8 4 ^ grid (210X297 mm) I A7 B7 5. Description of the invention (4 Figure 1 briefly shows a definition of a guard 2 and a cover Frame 1 of 3 and a safety razor blade set with a lubricating tape 4. Supported by the frame and carried by their respective support members are a main blade II, a pair of blades 12 and a third blade 13, each of which has its own Knife in a common plane P. The geometric configuration of the blade set is as follows: (a) The span s of the main blade 11 is 0.5 to 1.5 mm, preferably 0.7 mm; (b) The span s2 and the third of the secondary blade 12 The span S 3 of the blade 1 3 is in the range of 1.0 to 2.0 mm, preferably 1.5 mm each; (c) The distance S 4 from the blade edge of the third blade to the cover is about 1, 8 0 mm; (d) The exposure of the main blade is _0 04 mm; (e) The exposure of the secondary blade 12 is not less than that of the main blade 11 but not greater than that of the third blade 13 as shown It is equal to zero; (f) The exposure of the third blade is about + 0.09mm. Unless otherwise noted, the specific examples of the invention described below are configured to obtain blade geometry that is practically similar, although this geometry is not applicable when the blade set is stopped and not in use. In the blade set shown in Figs. 2 and 3, the shield 2 is mounted on the frame, and slides up and down between the upper and lower end positions defined by the stop surface provided on the frame. The shield is gently pushed to the upper end position by a spring 20. The cover 3 is similarly slidably mounted by the frame to move up and down between the end positions defined by the stop, and a spring 21 slightly shifts the cover to its upper end position. In the upper position of the hood, the upper face of the hood is facing the shoulder 30. Hold it against the back. Please read the back .. Note this page and install this page. • Ordered by the Ministry of Economic Affairs Central Standards Bureau Staff Consumer Cooperative Print system

SQ7 08 A7 B7 V. Description of the invention (The Peking Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed a stop surface 31, which is defined by a flange 32 integral with the frame, as seen in Figure 2. Similar, At the upper end of the lid, the upward facing shoulder 34 on the lid abuts the limit defined by a flange 36 integral with the frame—stop surface 35. At the lower end of the stomach lid and shield, $ hood And i respectively abut the stop surfaces 37 and 38 defined by the end wall portion of the frame, as shown in Fig. 3. The three blades 11, 12, 13 can be installed in the frame in a stationary manner or can be paired by their respective springs A stop surface 18 is offset, which is defined by the inwardly concave flange on the end wall of the frame. In the unused condition, the blade geometry is not within the target geometry of the blade. The negative of the main blade reveals a The absolute value is larger than 0.2 mm, and the third blade has a negative exposure. During use, the shield and cover can be pressed against the springs 20 and 21 that act on them, and the actual equivalent to the figure is obtained. The correction geometry shown in 1 occupies the lower position, as shown in Figure 3 According to this geometry, the blades can be offset downwards against their respective springs 19, but without losing the enhanced shaving performance due to the target geometry, in addition, the shield and cover use the blade set It is not necessary to stay at the lower end of the skin when it is in contact, but it can be allowed to move under the influence of the respective springs 2 and 21. In the specific examples of FIGS. 4 and 5, the cover 3 and the shield 2 are like a ring. The one shown in the figure is 'fixed to the frame' but in this example, the blades can be moved and influenced by their respective springs. Each spring can move the blade slightly upward-the stop table is as mentioned in relation to Figures 2 and 3 )), As shown in Xiao, when #blade group is stopped and no preload is used on m, each spring will not cost money. In this case of the blade group, it does not match the target geometry of the blade, because the main The blade has positive exposure 'and the exposure of the third blade is greater than + 0_2mm

Please read first-read the note on the back δ and write this page. Fifth, the description of the invention (please refer to the maximum number. However, during use, each blade is pressed against the spring force, so the modified geometry shown in Figure 5 is obtained, In fact, the target geometry of the picture can be obtained. If necessary, each blade can be provided to stop the gear to pre-determine the position where each blade must be deflected to reach the target geometry. Another way is to select the spring rate, so that according to the target The deviation of the geometry from each position should not be excessive. The specific examples of Figures 6 and 7 also have a stationary shield 2 and a cover 3. The three blades u, 12, 13 are for example a shell bearing mounted on the frame to support the frame. On the motive element 26, the blades are moved along a pivot axis a which is located above the blade, and a leaf spring 28 carried by the frame acts on the rocker element to gently promote it Move to the non-shaving position shown in Figure 6. At this position, each blade deviates from the target geometry of the blade, that is, the main blade has positive exposure and the third blade has negative exposure. When in use, the applied force will make it shake Motive parts are redundant and resistant to spring 28 And the position shown in FIG. 7 is predetermined by the stopper fixed on the frame, such as the stopper 40 or stopper 41 outlined in the attached ring. In the situation,

J Geometry configuration 7} is roughly as detailed in the previous section about I. Therefore, the target geometry of the blades, as illustrated in this article, each blade is fixedly mounted on the rocker member, but each blade can be used Huang is installed in the rocking machine part warp section k 樾 准 Mι% χ. The consumer cooperatives 'so at the cut-off time' the blades can become off-target geometry, as mentioned with respect to circles 2 and 3. It will be understood that although each blade does not initially satisfy the conditions of the geometric parameters to obtain the best performance, all the miscellaneous examples can be modified, so such geometric parameters will be obtained when used. This case has described a number of examples of courtesy, which can be understood, and other examples can also be within the scope of patent application. For example, the paper size is suitable for Guanjia County (CNS Μ4 threat (-9- and ·), only one of the I cover and cover can be moved or only one or two of the blades can be moved. Other combinations of movable elements It is also possible, in addition, that the various elements can be modified to move in different ways, for example, the guard can be configured to be curved or tilted and / or moved to change the span of the main blade and the exposure of the modified blade. Shield and / or The cover is removable and pops up. The features shown in the examples of circles 2 and 3 are that when not in use, each knife is placed below a plane that is tangent to the surface of the cover &cover; The cover and / or cover can be quickly moved to the retracted position defined by a stopper, thus obtaining the desired blade geometry. It is believed that when the razor with three elastically mounted blades exhibits a &quot; increasing force during shaving &quot; Type, you can get a favorable scraping bracelet effect, that is, the force on the third blade is greater than the force on the main blade, and the force on the auxiliary blade is 2 between the main blade and the third blade. It is equal to the force on the third blade or the main blade. The force type can be affected by the directional bias effect of the shaver, blade geometry, and blade spring configuration, as described in detail below. The directional bias effect of the shaver is the angular orientation of the wide surface of the skin with the shaver How to affect the force on each individual blade is related. 囷 8_1〇Describes the orientation of the three scrapers, namely the neutral orientation, the orientation of the weighted cover and the orientation of the weighted shield. In these two figures, the shaver 13 is The summary is shown as including the shield I], the cover 134 and the blades 136, 138, 140, and is shown with the shaver orientation based on the skin surface 142 before the skin surface is bent. During the actual shaving period 'Generally, the shaver is pushed into the skin surface to make it deflect, so the entire top of the shaver contacts the skin, if it is assumed to be exposed at rest (no shaving), the spring preload and spring rate For each blade is equal, the shaver orientation will control the force on each blade during shaving. V. Description of the invention (8) In FIG. 8, the shaver 130 is oriented in a neutral state, in this state In the middle, when the user presses the shaver 1 3 0 On the surface, when the Thai blade is brought into contact with the scraper brake, the force is added to the three blades. In order to generate the incremental force pattern, the blade geometry and / or blade spring configuration can be modified, as described in detail below. In Figure 9 ' The shaver 130 has an orientation that favors the cover. In this case, the cover 132 first contacts the skin surface. When the rest of the top of the shaver is pushed toward the skin, more force is applied to the blades near the cover. Therefore, The force on the third blade is greater than the force on the secondary blade, and it is greater than the force on the main blade, which is an incremental force type. In FIG. 10, the shaver 130 has an orientation that emphasizes the shield, in this case In the middle, the shield 134 first contacts the surface of the skin. When the rest of the top of the shaver is pushed towards the skin, more force is applied to the blade close to the guard. Therefore, the force on the main blade is greater than the force on the secondary blade, Moreover, the force is greater than the force on the third blade, and the status of focusing on the armor contributes to &quot; incremental force. The opposite β is to produce an incremental force type. The blade geometry and / or blade bounce configuration can be modified to resist May be biased The hood-like sinking is another force type, as discussed in the following. Β Printed by the Ministry of Economic Affairs, Central Bureau of Standards and Technology, Beigong Consumer Cooperative. For razors that are not pivotally connected to the handle, they are oriented toward the skin. And therefore, the orientation bias of the americium should generally be determined by the orientation of the shaver to the handle. As for the shaver attached to the handle via a frame shaft, in addition to the orientation when the shaver stops, the pivot position and the return spring force will affect the orientation bias effect of the shaver. For example, if the shaver is oriented as shown in Figure 9 when resting, the cover will first contact the skin, but if the pivot is in the area of the shield and there is a slight return spring force, the shaver is Shaving period will be -11-This paper scale is applicable to China National Standard (CNS) Α4 specification (210X297mm)

5. Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. As mentioned above, the force pattern on each blade can also be affected by blade geometry and blade spring configuration. This blade geometry refers to the exposure at rest. Blade spring configuration refers to spring rate and preload. Figure 11 illustrates one method of providing flexible installation to the blade and how it can be adjusted when the blade is stopped (other spring installation methods can also be used). Referring to FIG. 1, a plastic arm 1 44 of a cantilever type extends from the side wall 146 of the housing, and provides elastic support to the upper portion 148 of the curved end of the blade. The cutting edge 150 of the blade is made of metal fixed to the housing. Shuang 152 Prevent further upward movement. A similar arm extends from the other side of the shaver and provides elastic support to the other end of the blade below the similar buckle. The pair of arms 144 is equivalent to the springs 19 and 24 shown in FIGS. 2_5 acting as the same cantilever The upward force F applied to the blade part 148 by the arm 144 of the beam is the linear function y: F = k * y where k is the length l of the arm, the inertia of the arm The spring constant (k = L3 / (3El)) determined by the moment I and the elastic transverse number E. If the arm 144 is deviated by a distance yp from the clip 152 during manufacturing (ie, the arm 144 is provided with a preload force Fp of k * yp), then y in this formula is equal to yp + yd, where ^ is equal to that shown in FIG. 11 The rest position moves downwards. The force applied to each blade can be controlled in a variety of ways to create an incremental force pattern during shaving. For example, the arm 144 can have different spring constants by changing the length or moment of inertia of the arm 144 (for example, providing a thicker cross section to the arm 144). The arm 144 can also maintain the same arm cross-section and length, but the position where the arm 144 is attached to the side wall 146 of the housing is moved upward (increasing the preload force) or downward (decreasing the preload force) to make it have a different preload Load force Fp. Loss 152, please read it first. The notes on the page will be loaded on another page. • Staple Λ -12- Sheet paper from China National Standards (CNS) Α4 threat (21〇Χ297mm

The printing example Γ τ or the shape of the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs can also be adjusted based on the arm to adjust the preload force Fp touch; ^ 152 is installed so that the contact m part is lower or higher than a different blade Part. In the scraping ㈣ _ to obtain the incremental force type-the method is that the blade has the most increased exposure and the same preload force and spring constant. During the scraping period, another method of increasing force is to make all the blades have the same first exposure (both are zero) and increasing preload. -Increasing preload can be provided by making the spring rabbit number of the third A higher than the spring constant of the second blade and the spring constant of the main blade], and the spring f number of the second blade ... The increasing preload is also Β, spring, preload and initial fog can be obtained by using the same arm (ie the same spring constant) for all blades, installing the first arm higher than the main blade and the third arm higher than the second blade Can be used in combination with the directional bias effect of the bristle scraper to produce an incremental exposure and / or incremental force type. For example, if the shaver has a biased shield orientation (for example, the cover is oriented first and there is a shaft near the shield-a key shaft and a slight return spring, as described above), the incremental geometry in use can be used in The third and second blades have a higher preload than the main blade, and the spring constant and the rest are revealed. Other combinations that can be used to promote the increase of the shaving force during shaving include a higher preload on the third blade than the first blade The load's spring constant or rest is revealed or has a combination of these parameters that are higher on the third blade than on the first blade. In order to promote the incremental force type, it is preferable that the second blade has an intermediate value or the same value as the third blade. The spring preload is usually about 25 g or less. Expected in each order

-13- CNS) A4 ^ '(210X297; i ¥ T

A7 __B7 5. Description of the invention („) The force on the single blade is in the range of approximately 0-40 grams, the force on the first blade is between zero and 20 grams, and the force on the third blade is greater than zero and less than 4 0 Between the grams. The force on each individual blade should be greater than 5 grams. The exposure and exposure during shaving are usually within the range described above. Install-f (Please read the precautions on the back before filling this page) .Book

J Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. This paper scale applies the Chinese National Standard (CNS) A4 (210X297mm)

Claims (1)

Printed by the Consumer Labor Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 6. Scope of Patent Application ^ --1 1. A safety razor blade unit includes a shield, a cover and a parallel sharp knife that is located between the shield and the cover successively The first, second and third blades are selected from at least two blades. One element of the shield and cover can be moved from a non-scratching position to modify the blade display size of the blade unit and obtain a modified blade geometry Learning, where the exposure of the first blade is not greater than zero 'and the exposure of the third blade is not less than zero, when at least one movable element is in the non-shaving position. At least one of the first and third blades has a different Revealed. 2. The safety razor blade unit according to item 1 of the patent application, wherein at least the element can be moved from the non-scraping position to a predetermined position defined by the stopper or the pressure device. 3. The safety razor blade unit according to item 1 or 2 of the patent application scope, wherein at least one movable element is deflected from the spring device to the non-shaving position 4. The safety razor blade unit according to item 3 of the patent application scope , Where at least the element is deflected by the spring device to an end position defined by the stop device. 5-The safety razor blade unit according to item 1 or 2 of the patent application scope, wherein at least one movable element contains the shield. 6. The safety razor blade unit according to item 1 or 2 of the patent application scope, wherein at least one movable element includes the cover. 7. The safety razor blade unit according to item 1 or 2 of the patent application, wherein at least one movable element includes one or several blades. 8. According to the 7th razor blade unit of the patent application scope, each of the blades 4299ZDOC-1 · This paper scale is applicable to the Chinese National Standard (CMS) A4 specification (210X297 mm) -------- Yimai— {Please read the precautions on the back before filling out this page) Orders can be moved independently of each other. 9 ‘The safety razor blade unit according to item 7 of the patent application scope, where each blade can be moved in unison. According to item 9 of the scope of the patent application, the safety razor blade unit, where each blade is carried by a member mounted to rotate on the frame axis. U. According to the application of the patent scope item 10, the safety razor blade unit, wherein the pivot material member It can pivot around one axis above each knife. 12. A kind of safety razor blade unit, including a shield,-a cover and a plurality of blades with parallel sharp blades between the cover and the cover, at least one of the cover and the cover is resistant A spring force moves from the non-shaving position to a predetermined operating position, in which the corrected blade geometry is obtained. In the non-shaving position, the blades of each blade are placed tangent to the contact surface of the shield and cover Below the plane. 13. The safety razor according to item 12 of the patent application scope, which is provided with the first, second and third blades, and each of the blades has a blade placed between the shield and the cover. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs M. According to the patent application scope! , Item 2 or 13 of the safety brake blade unit, which: In the modified blade geometry, the exposure of the _ blade has a negative exposure with an absolute value in the range of 0 to 0.2 mm. 15. According to item w of the patent application scope • Safety razor blade unit, where, in the revised blade geometry sound φ, @rr, / 7, two, the sub-blade spans between the blade and the shield The distance is in the range of 0.5 mm to 1.5 mm. 3 16. According to the patent application scope item No. 4 of the safety brake blade unit, wherein, in the modified blade geometry, the first weight τ younger blade is exposed Approximately 2-42992.DOC The paper scale is applicable to the Chinese National Standard (CNS) A Russian $ 77 ^ 297mm. Please request the patent scope A8 B8 C8 D8. The Ministry of Economic Affairs t Central Standards Bureau Employee Consumer Cooperative Printed at -〇. 0 4mm. According to the safety razor blade unit of item i, 2 or i 3 of the scope of the patent application, in the modified blade geometry, the exposure of the third blade has a positive value not greater than + 0.3 mm. Chi is based on the safety razor blade unit of item i, 2 or 13 of the patent application scope, where 'In this modified blade geometry, the span between the third blade and the second blade is 10 To a range of 2 mm to 3 U according to the patent application scope item i '2 or 丨 3 of the safety brake blade unit, where' in the modified blade geometry, the blade of the second blade and the blade of the first The span between knives is in the range of 10 to 20 mm. 20. The unit of the safety razor blade according to item 18 of the patent application scope, wherein in the modified blade geometry, between the blade edge of the first and second blades and / or between the blade edge of the second and third blades The span system is roughly equal to 1.5 mm. 21. The safety razor blade unit according to item 1, 2 or 13 of the patent application scope, wherein in the modified blade geometry, the exposure of the second blade is not less than that of the first blade and not greater than that of the third blade Revealed. 22. The unit of the safety razor blade according to item 21 of the patent application scope, in the modified blade geometry, the exposure of the second blade is substantially equal to zero 3 23. According to the patent application scope item 1, 2 or-丨 3 Item of the safety razor blade unit, in which, in the modified blade geometry, the exposure of the third blade has a positive value that is actually equal to one of the negative values of the first blade exposure in numerical value. 24. The safety razor blade unit according to items 1, 2 or 3 of the patent application scope, wherein, in the modified blade geometry, the blade and the guard of the first blade 42992.DOC This paper scale is applicable to the Chinese standard Mou (CNS) 8 4 wash grid (2H) X297 mm) (Please read the notes on the back £ · before filling out this page)-Install-As0 ... 4.-The span between the ABCD and the scope of patent application is It is substantially smaller than the span between the first and second blade blades and the span between the second and third blade blades. According to the patent application scope i, 2 or 13 of the safety razor blade unit, in the modified blade geometry, the span between the blade of the first blade and the shield is substantially equal to 0 7 mm. 26.-A kind of shaver, including:-the casing 'has a connection structure that makes exhaustive connection to the handle,-a shield, on the front of the shaver,-a cover, on the back of the shaver, The younger brother and the second blade have parallel sharp knives, which are successively placed on the shell between the shield and the cover, and are separately installed to bias the shell to move the spine, each of these blades can be moved from the non-shaving position to Shaving position, where the force on the first blade is less than the force on the third blade. According to item 26 of the patent application scope, in the shaving position, the force on the first blade is less than or equal to the force on the second blade, and the force on the second blade is less than or equal to the The power of three blades. 28. The shaver according to item 26 of the patent application scope, wherein the housing has a pivot structure for providing pivoting of the housing about a pivot. '29_ According to item 28 of the patent application scope-racer, wherein the pivot is in front of the blade in the area of the shield. No. According to item 26 of the scope of the patent application, the child shaver is divided into two parts. The hood is heavy. 31. According to item 29 of the patent application scope, the scraper is protected 42992.DOC _ 4-This paper size is suitable for ggj home fresh (CNS) Α4 specifications (2lGx297yJ ^ ~~~ -___-installed ----- Ii — · Order ---: --- line (please read the precautions on the back before filling this page) Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs of India Printed by Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy Printed A8 B8 C8 _______D8 VI. Application: scope of benefit &quot; — ~~~ — hood biased weight &lt; 5 32 · —a kind of shaving razor, including: —handle, —the shell connected to the handle, —at the front of the shell The shield, — the cover on the back of the housing, with parallel sharp ^ 7 blades of the first, second, and third blades, which are successively located on the housing between the shield and i, and are installed separately to The outer blade is biased by the spring. The blade can be moved from the non-shaving position to the shaving position. The force on the first blade is less than the force on the third blade. 33. According to the 26th patent application 3〇, or 31 of the razor, or according to the application of the patent scope item 32 of the 'blade' The blade has a higher spring constant than the first blade. 34 The shaver according to item 26, 30 or 31 of the patent application, or the razor according to item 32 of the patent application, in which the third blade has the first The blade has a high preload. 3b. According to the razor according to item 26, 30 or 31 of the patent application, or the razor according to item 32 of the patent application, where the third blade has a higher height than the blade Revealed when it stops. — 36. The razor according to item 26, 30 or 3 of the patent application or the razor according to item 32 of the patent application, where the second and third blades = — the blade is a high spring Constant. 'K According to the razor of item 26, 30 or 31 of the patent application scope, or according to «992.D〇c (please read the precautions on the back before filling in this page). Install. _ · Booking 5 A8 B8 C8 D8 Sixth, the patent application blade is a razor with the patent application item 32, and the second and third by Dang Dan 〒 brother have a higher preload than the first blade. I 38. According to the patent application Item 26, 30 or *. Or 31 <shaver or upon application The razor of item 32 of the patent scope, in which the flute _ κ β ΤΪ—and the third blade have a blade whose height is high. It is revealed. 39. According to the patent application range of 26, 30 hey 3 fly 31 items Hu device or according to the application. The second blade of Dan τ is exposed and preloaded when the rest of the first blade is stopped. 4α According to the 26th in the patent application, the feeder is called the 31st item or according to the 32nd item in the patent application. The brake blade, in which the third blade has a higher exposure and spring constant than the first blade. 41. The scraper according to item 26'30 or 31 of the patent application, or the brake knife according to item 32 of the patent application, in which the third blade has a higher preload and spring constant than the first blade. 42. The scraper according to item 26, 30 or 3 of the patent application range or the razor according to item 32 of the patent application range, in which the third razor has a higher resting than the first blade, the preload and the spring constant . 43. The razor according to items 26, 27, 30 or 31 of the patent application scope or the razor printed according to the item 32 of the patent application scope is printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. One blade is high and preloaded when it stops. 44 According to the patent application scope item 2 6, 2, 7, 30 or 31, the rhythm scraper becomes the razor according to the patent application item 32, in which the second and third blades have a higher rest than the first blade Exposure and spring constant. 45. According to the scope of patent application items 2, 6, 2, 7, 30 or 31, or root 6-42992.DOC This paper scale is applicable to China National Standard (CNS) Α4 specification (2I0X2SI7mm) 〇 〇77〇β VI. Patent application range Α8 Β8 C8 D8 The Ministry of Economic Affairs Central Standards Bureau employee consumer cooperative printed a brake knife according to item 32 of the patent application range, of which the second and third blades have a higher presale than the first blade Load and spring constant. Sister according to the 26'27, 30 or 31 of the patent application scope or the brake knife according to the 32nd patent application scope, where the second and third blades have a higher rest than the first blade. Preload and spring constant. ⑽According to the patent scope of the 26th, 27th, 3Q or the ruler or the razor according to the claim 3 of the patent scope, where the force on the first blade during shaving is between zero and 20 grams, and The force on the third blade during shaving is greater than zero and less than 40 grams. 48. A kind of shaver, including:-a housing with a connecting structure for movably connecting the handle,-a shield on the front of the shaver,-a cover on the back of the rhyme, and The first, second and third blades with parallel sharp knives, successive positions: on the shell between the shield and the cover, and separately installed to bias the shell and move the shell, each of the blades can be The non-scraping position moves to the scraping position, where the exposure on the first blade is less than the exposure on the third blade. 49. Root, the scraper of item 48 of the patent application scope, wherein in the scraping position, the exposure on the first blade is less than or equal to the exposure on the second blade and the exposure on the second blade is less than or Equal to the exposure on the third blade. 42992.DOC The size of this paper is suitable for ϋϋjia County (CNS) Α4 specifications Γ 装 ί (please read the precautions on the back before filling this page).