CN101885184B - Electric razor - Google Patents
Electric razor Download PDFInfo
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- CN101885184B CN101885184B CN200910261508.6A CN200910261508A CN101885184B CN 101885184 B CN101885184 B CN 101885184B CN 200910261508 A CN200910261508 A CN 200910261508A CN 101885184 B CN101885184 B CN 101885184B
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- little
- base end
- end part
- sword
- shear surface
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Abstract
The invention provides an electric shaver having an inner edge capable of adequately ensuring the structural strength of the small edge and simultaneously improving the sharp affect and capable of well preventing the stubble from flying out the outer surface after cutting off. A rib small edge (12) constituting the inner edge (12) is formed by a shearing surface (25) of the outer surface, a non-shearing surface (26) of the interior surface and inner depressed and bent right-and-left side edge parts (27). a sharp angle cutting edge (28) if formed on the right and left sides of the shearing surface, thereby ensuring the sharpness of the inner edge (12). The full width (W) of the top of the small edge and the full width (B) of the base end of the small edge are set up to be roughly identical. The angle (alpha 2) of the cutting edge at the base end is set up to be larger than the angle (alpha 1) of the cutting edge of the top. Therefore, the section plane (cross section) area (S2) of the small edge at the base end is set up to be larger than the section plane area (S1) of the small edge at top, thereby ensuring the structural strength of the small edge.
Description
Technical field
The present invention relates to possess the electric razor of the inner edge of the slit sword structure forming with etching method.
Background technology
The inner edge that discloses slit sword structure in patent documentation 1 is for example bent into U-shaped, but in order to strengthen the structural strength of each little sword, just adjacent little sword is connected with ribs each other.And then, the width dimensions that makes near the width dimensions of the little sword top of inner edge be greater than the little sword of base end part is also disclosed in patent documentation 1, thereby in top side, import at an easy rate shorter beard, and import at an easy rate long beard and hair or tendril is sent out in base end part side.
About the width dimensions of little sword, in patent documentation 2, illustrate the width dimensions of the base end part that makes little sword than the large situation of width dimensions at little sword top.The base end part of little sword forms isosceles-trapezium-shaped, and so that its top state connected to each other is formed to little sword with the width equating.
In the inner edge of slit sword structure of the present invention, the section of the little sword of rib shape is formed to isosceles-trapezium-shaped or fall isosceles-trapezium-shaped, the structure of this little sword also discloses in patent documentation 3.In patent documentation 3, the section of little sword is formed to isosceles-trapezium-shaped, and hypotenuse partly bends to sunken inside shape.In the shear surface side of the little sword with outside sliding-contact, be provided with the cutting edge of acute angle, and then, in the both sides of the non-shear surface side of little sword, be provided with and catch the seizure sword that beard is used.The width dimensions that catches sword is set greatlyr than the width dimensions of cutting edge, and with catching sword, catches beard prior to cutting edge, so beard can be dragged and shave deeplyer into the inner surface side of inner edge.
Patent documentation 1: Unexamined Patent 08-126781 communique (paragraph numbering 0012～0013, Fig. 4)
Patent documentation 2: examined patent publication 49-017507 communique (the 2nd page of 26th～27 row, the 4th figure)
Patent documentation 3: JP 2007-215595 communique (paragraph numbering 0027, Fig. 1)
According to the inner edge of patent documentation 1 and 2, by the base end part structure of ribs, isosceles-trapezium-shaped, can improve the structural strength of little sword.But, owing to being located at the angle of the cutting edge part in the both side edges of little sword the chances are 90 degree, therefore fast not, lack sharp sense.In addition, at the inner edge this respect of patent documentation 1, ribs has hindered the importing of beard.In addition, because near the width dimensions of little sword top is greater than the width dimensions of the little sword of base end part, the therefore inevitable decline of the catch rate of beard on the whole spends the more time when cutting off beard.
Based on this point, according to the little sword of patent documentation 3, due to the cutting edge of the both sides of little sword is formed to acute angle, therefore compare and can bring into play sharp sense with little sword before.But, due to the section shape of little sword and the width of little sword little sword longitudinally on be all identical, therefore carrying out beard while cutting off, larger bending moment easily acts on the base end part of little sword.
Summary of the invention
The object of the present invention is to provide to possess and can when guaranteeing the structural strength of little sword, improve the electric razor of the inner edge of sharp sense.The object of the present invention is to provide the electric razor of the inner edge that possesses the punch process that can carry out reliably inner edge blank.
Outside 10 and inner edge 12 that the present invention grows crosswise to have left and right, and the electric razor that inner edge 12 is back and forth driven by the inner surface along outside 10 is prerequisite.Inner edge 12 alternately possesses the little sword 21 of rib shape, and the sword hole 22 of slit-shaped.Little sword 21 by the shear surface 25 of outer surface, the non-shear surface 26 of inner surface and the side portion 27 that bends to the left and right of sunken inside shape form.And then, the section shape that comprises the little sword 21 at top is formed down to isosceles-trapezium-shaped, then the cutting edge 28 of acute angle is set at the left and right sides of shear surface 25 edge.The overall with B of the base end part of the overall with W at the top of little sword 21 and little sword 21 is set as roughly the same.Therefore, the angle [alpha] of the cutting edge of base end part 28 2 is set greatlyr than the angle [alpha] of the cutting edge at top 1, thereby the sectional area S2 of the little sword 21 of base end part is set greatlyr than the sectional area S1 of the little sword 21 at top.
The little tread degree B2 of the non-shear surface 26 of base end part is set greatlyr than the little tread degree W2 of the non-shear surface 26 at top.
The little tread degree W2B2 of non-shear surface 26 is increased to base end part gradually from the top of little sword 21.
The little tread degree B1 of the shear surface 25 of the little tread degree W1 of the shear surface at top 25 and base end part is set roughly the samely.The little tread degree B1 of the shear surface of base end part 25 is set greatlyr than the little tread degree B2 of the non-shear surface 26 of base end part, thereby the top from little sword 21 is formed to the isosceles-trapezium-shaped of the hypotenuse portion 27 that possesses sunken inside shape to the section of base end part.
The little tread degree B1 of the shear surface 25 of the little tread degree W1 of the shear surface at top 25 and base end part is set roughly the samely.In the equal mode of little tread degree B2 of the non-shear surface 26 with base end part, set the little tread degree B1 of the shear surface 25 of base end part, thereby the section of the little sword 21 of base end part is formed to the quadrangle of the side portion 27 that possesses sunken inside shape.
The little tread degree B1 of the shear surface of base end part 25 is set littlely than the little tread degree W1 of the shear surface at top 25.The little tread degree B2 of the non-shear surface 26 of base end part is set greatlyr than the little tread degree B1 of the shear surface of base end part 25, thereby the section of the little sword 21 of base end part is formed to the isosceles-trapezium-shaped of the hypotenuse portion 27 that possesses sunken inside shape.
The little tread degree B1 of the shear surface of base end part 25 is set littlely than the little tread degree W1 of the shear surface at top 25.The little tread degree B1 of the shear surface of base end part 25 is set greatlyr than the little tread degree B2 of the non-shear surface 26 of base end part, thereby the section of the little sword 21 of base end part is formed to the isosceles-trapezium-shaped of the hypotenuse portion 27 that possesses sunken inside shape.
Outside 10 and inner edge 12 that the present invention grows crosswise to have left and right, and the electric razor that inner edge 12 is back and forth driven by the inner surface along outside 10 is prerequisite.Inner edge 12 alternately possesses the little sword 21 of rib shape, and the sword hole 22 of slit-shaped.Little sword 21 by the shear surface 25 of outer surface, the non-shear surface 26 of inner surface and the side portion 27 that bends to the left and right of sunken inside shape form, thereby the section from top to base end part of little sword 21 is formed to isosceles-trapezium-shaped.The overall with B of the base end part of the overall with W at the top of little sword 21 and little sword 21 is set as roughly the same.The little tread degree B1 of the shear surface of base end part 25 is set greatlyr than the little tread degree W1 of the shear surface at top 25, thereby the sectional area S2 of the little sword 21 of base end part is set greatlyr than the sectional area S1 of the little sword 21 at top.
In the present invention, inner edge 12 these one side at narrow slit structure, side portion 27 by shear surface 25 and non-shear surface 26 and sunken inside shape forms little sword 21, and the section shape that comprises the little sword 21 at top is formed down to isosceles-trapezium-shaped, then the cutting edge 28. of acute angle is set on the edge of the left and right sides of shear surface 25 in addition, make the sectional area S2 of the little sword 21 of base end part be greater than the sectional area S1 of the little sword 21 at top, thereby strengthen the easily intensity of concentrated base end part of bending moment, with this, improve the structural strength of little sword 21.Thereby, according to the present invention, when can improve sharp sense at the cutting edge 28 by acute angle, guarantee fully the structural strength of little sword 21, thereby carry out beard effectively, cut off.In addition, owing to comprising that comparing higher section shape top, little sword 21 of cut-out frequency with other positions forms down isosceles-trapezium-shaped, therefore can with hypotenuse portion 27 block that hair stubble after cut-out flies out from sword hole 22 and by it inner surface side to inner edge 12 push up back, and mao batch situation about flying out to the outer surface of razor head 3 after can preventing from cutting off.
If the little tread degree B2 of the non-shear surface 26 of base end part is set greatlyr than the little tread degree W2 of the non-shear surface 26 at top, can further increase the poor of the sectional area S2 of base end part and the sectional area S 1 at top, thereby improve the structural strength of little sword 21.In addition, this part that the little tread degree B2 of the non-shear surface 26 by base end part goes out greatly, the situation that the hair stubble that can respective degrees ground suppresses to cut off flies out from base end part side.
If the little tread degree W2B2 of non-shear surface 26 is increased to base end part gradually from the top of little sword 21, the sectional area that just can make little sword 21 from top to base end part gradually and without the stage become large.Thereby, by punch process, inner edge blank 11 is being bent to while falling U-shaped, the flexural deformation that bending stress plays the top of larger effect can be carried out very sleekly, thereby the bending machining of inner edge 12 can be carried out reliably.
If the little tread degree B1 of the shear surface of base end part 25 is set greatlyr than the little tread degree B2 of non-shear surface 26, just the section from top to base end part of little sword 21 can be formed to the isosceles-trapezium-shaped of the hypotenuse portion 27 that possesses sunken inside shape.That is, the whole section of little sword 21 can be formed down to isosceles-trapezium-shaped, thereby form in the left and right of little sword 21 the hypotenuse portion 27 that dwindles shape downwards.Thereby, can be used in the hypotenuse portion 27 forming in the total length longitudinally of little sword 21 and block the hair stubble flying out from sword hole 22, and the inner surface side of being pushed up back inner edge 12, or guide it to fall down, and can prevent more reliably the hair batch situation about flying out to the outer surface of razor head 3 after cut-out.
If the little tread degree B2 of the little tread degree B1 of the shear surface of base end part 25 and non-shear surface 26 is set identically, just the section of the little sword 21 of base end part can be formed to the quadrangle of the side portion 27 that possesses sunken inside shape, and compare with the situation that the section of base end part is formed down to isosceles-trapezium-shaped, can make the sectional area S2 of base end part maximum.Thereby, much less can guarantee fully the structural strength of little sword 21, thereby effectively carry out beard cut-out, even if the load when beard cuts off sharply changes under so too drastic beard cut-out situation, also little sword 21 can be remained on to suitable cut-out posture, thereby suitably carry out beard cut-out always.And then due to the little tread degree B2 of the non-shear surface 26 of base end part, and the little tread degree W1 of the shear surface 25 at top is roughly identical, the situation that the hair stubble that therefore can more effectively prevent from cutting off flies out from base end part side.
The little tread degree B1 of the shear surface of base end part 25 is set littlely than the little tread degree W1 of the shear surface at top 25, and the little tread degree B2 of the non-shear surface 26 of base end part is set greatlyr than the little tread degree B1 of shear surface 25, thereby the section of the little sword 21 of base end part can be formed to isosceles-trapezium-shaped, so that the area of the shear surface 25 of little sword 21 is less.Thus, with little this partial response ground going out of the little tread degree B1 of the shear surface 25 of base end part, can increase to respective degrees the aperture area of the outer surface side in sword hole 22, therefore when razor head 3 being washed to cleaning, can promote water to invade to inner edge inner surface from the sword hole 22 of base end part, thereby can effectively wash cleaning.In addition, if the area of the shear surface 25 of the little sword 21 of base end part is less, the resistance to sliding during with outside 10 sliding-contact near the little sword 21 of base end part in the time of can alleviating beard and cut off, thus can cut down the power consumption of electric razor.
If the little tread degree B1 of the shear surface of base end part 25 is set littlely than the little tread degree W1 of the shear surface at top 25, thereby the section of the little sword 21 of base end part is formed down to isosceles-trapezium-shaped, just can be when the whole section of little sword 21 be formed down to isosceles-trapezium-shaped, with little this partial response ground going out of little tread degree B1, the resistance to sliding that can alleviate to respective degrees little sword 21 and outside 10.Thereby, can block the hair stubble that will fly out from sword hole 22 with the hypotenuse portion 27 of sunken inside shape, thereby can prevent the situation that hair stubble flies out to the outer surface of razor head 3, so with the resistance to sliding that can alleviate correspondingly, can cut down the power consumption of electric razor.
In electric razor of the present invention, inner edge 12 these one side in slit sword structure, side portion 27 by shear surface 25 and non-shear surface 26 and sunken inside shape forms little sword 21, and the section shape of the little sword 21 from top to base end part is formed to isosceles-trapezium-shaped, thereby the cutting edge 28 of acute angle is set on the edge of the left and right sides of shear surface 25.In addition, make the sectional area S2 of the little sword 21 of base end part be greater than the sectional area S1 of the little sword 21 at top, thereby the intensity of the easy concentrated base end part of bending moment is increased gradually, to improve the structural strength of little sword 21.Thereby, according to the present invention, when can improve sharp sense at the cutting edge 28 by acute angle, guarantee fully the structural strength of little sword 21, thereby effectively carry out beard cut-out.And then, owing to allowing the little tread degree W1 of shear surface 25 at top of frequency of utilization maximum be less than other position, therefore can increase near aperture opening ratio top, thereby improve beard, import effect, can effectively carry out to respective degrees beard cut-out.
Accompanying drawing explanation
Fig. 1 is the plane while seeing inner edge blank from non-shear surface side.
Fig. 2 is the front elevation of electric razor.
Fig. 3 is the vertical profile side view of razor head.
Fig. 4 is the stereogram after inner edge is decomposed.
Fig. 5 is the front elevation of inner blade unit.
Fig. 6 is the Z-Z line profile of Fig. 5.
Fig. 7 is X-X line profile and the Y-Y line profile of Fig. 1.
Fig. 8 is the profile of showing the forming process of the little sword carrying out with etching method.
Fig. 9 is the profile of other embodiment of showing the section shape of little sword.
Figure 10 is the profile of other embodiment of showing the section shape of little sword.
Figure 11 is the profile of other embodiment of showing the section shape of little sword.
Figure 12 is the profile of other embodiment of showing the section shape of little sword.
Figure 13 is the profile of other embodiment of showing the section shape of little sword.
Figure 14 is the profile of other embodiment of showing the section shape of little sword.
Figure 15 is the profile of other embodiment of showing the section shape of little sword.
Figure 16 is the plane of showing other embodiment after the shape that has changed little sword.
Figure 17 is the plane of showing other embodiment after the shape that has changed little sword.
Figure 18 is the plane of showing other embodiment after the shape that has changed little sword.
Figure 19 is the plane of showing other embodiment after the shape that has changed little sword.
Figure 20 is the front elevation of inner blade unit of other embodiment of showing the mounting structure of inner edge.
Figure 21 is the stereogram of inner edge support of other embodiment of showing the mounting structure of inner edge.
Figure 22 is the profile of other embodiment of showing the section shape of little sword.In figure:
10-outside, 12-inner edge, the little sword of 21-, 25-shear surface, the non-shear surface of 26-, 27-side portion (hypotenuse portion), 28-cutting edge
The specific embodiment
Fig. 1 to Fig. 8 has shown the embodiment of reciprocating-type electric shaver of the present invention.In Fig. 2, electric razor possesses body casing 1, and is assembled in the working cell in body casing 1.Before body casing 1, be provided with motor and work the shift knob 2 of employing, top is provided with hairline blade unit (not shown) overleaf.Working cell possesses lower half side electric component unit, and be located at electric component unit top razor head 3 and form.Electric component unit possesses circuit board and 2 primary cells 4 etc. and forms.The shift knob 2 being provided with on circuit board before using carries out the switch element of switch, the electronic component that forms control circuit and the LED that display part is used etc.
Razor head 3 possesses cutter head frame 5, be fixed on the motor 6 of its underpart, be configured in the cutting portion on the top of razor head 3, by the transmission of power of motor 6 to the drives structure of cutting portion and outside support 7 of being loaded and unloaded for cutter head frame 5 etc. and form.Razor head 3 to be fluctuating in body casing 1, and can before and after fascinate and the mode fascinated in left and right supports.Motor 6 and the form seal part sealing being located between razor head 3 and body casing 1 for electric component unit that comprises circuit board.
Cutting portion possesses the outside 10 of growing crosswise in left and right, and the inner edge 12 of being grown crosswise by the reciprocal left and right driving, left and right along the inner surface of outside 10.Outside 10 possesses the netted sword of the sheet forming with electrocasting or etching method, and is held in reverse U shape shape with previous outside support 7.Inner edge 12 possesses the slit sword of implementing punch process and bend to reverse U shape shape on inner edge blank 11 shown in dotted lines in Figure 4, and is fixed at that reverse U shape shape with inner edge support 13.Its detailed content is narrated afterwards.In addition as described later, inner edge blank 11 use etching methods form.
Back and forth drive the drives structure of inner edge 12, possess the driving shaft 17 of eccentric cam 15 on the output shaft that is fixed on motor 6, vibrator 16 and the outstanding center upper portion that is located at vibrator 16 and form.The rotary power of motor 6 is transformed into reciprocating power by eccentric cam 15 and vibrator 16, and passes to inner edge 12 via driving shaft 17.Reciprocating power is also delivered to hairline blade unit.Inner edge 12 is configured in spring 18 tops of the compressed lines cast between vibrator 16 and inner edge support 13 and gets on, thereby is close to the inner surface of outside 10 always.
As shown in Figure 1, the lamellar body that inner edge blank 11 is before grown crosswise by left and right forms, and on the facing the wall and meditating of lamellar body, direction is alternately formed with the little sword 21 of rib shape to the left and right, and the sword hole 22 of slit-shaped.Left and right (four jiaos) at the long leg of lamellar body, becomes respectively コ word shape and is formed with the breach 24 matching with the projection 23 of inner edge support 13, is formed with the fixing hole 40 consisting of circular hole in the left and right of each breach 24.On the inner edge of breach 24, be provided with and utilize the flange (thinner wall section) 41 that etches partially formation.The edge part 42 of the inner edge of flange 41 forms the conical by its shape of dwindling to the inside.Its purpose is narrated afterwards.
As shown in Figure 7, little sword 21 by the shear surface 25 of outer surface, the non-shear surface 26 of inner surface becomes down the mode of isosceles trapezoid to form with hypotenuse portion (side portion) 27 that bends to the left and right of sunken inside shape with section.Accompany therewith, on the edge of the left and right sides of shear surface 25, be formed with respectively the cutting edge 28 of acute angle, the collaborative beard that cuts off of these cutting edges 28 and outside 10.In addition, on the edge of the left and right sides of non-shear surface 26, be formed with respectively the corner part 29 of the acute angle same with cutting edge 28 before.Moreover, so-called little sword 21 of the present invention, the meaning is not only to comprise the part of carrying out beard cut-out with outside 10 sliding-contacts, also comprises the integral body that does not have the rib shape part of helpful part to cutting off beard.In addition, the little sword when inner edge 12 and outside 10 carry out beard cut-out (cutting off) via very little gap, is also included within little sword 21 of the present invention.
On the stainless steel materials 30 that inner edge blank 11 is 0.25mm at thickness, implement etch processes and form, what in its process, form the little sword 21 of formation respectively faces the wall and meditates 25～27.As shown in Figure 8, by etch processes, be exactly to expose form respectively resist film 3132 on the table back of the body two sides of stainless steel materials 30 after, and the plate surface being surrounded by resist pattern with etching solution etching after removing exposed portion.
Compare with the resist pattern of face side, the resist pattern of rear side forms in the mode of a large circle.Therefore, compare with the surface of stainless steel materials 30, the etched degree of rear side becomes large.The flexure plane of growing up from surface (shear surface 25) side by etching, with the flexure plane that (non-shear surface 26) side is grown up from the back side, finally become a flexure plane and form hypotenuse portion 27, but only have the etched more part of rear side to become front end to rear side, dwindle shape.As a result, the integral body of the section of little sword 21 is formed down isosceles-trapezium-shaped.Moreover breach 24 and fixing hole 40 are to use the etching action carrying out from table back of the body two sides to form too.Therefore the inner surface 43 of fixing hole 40 is formed the dome shape of top and bottom opening.
In order to make the section shape of longitudinal middle body (top) of little sword 21 different with the section shape of the base end part of little sword 21, form in such a way the resist pattern of the table back of the body.First, the resist pattern of face side is to form roughly the same width from top to two base end part of little sword 21.Therefore, the little tread degree of surface (shear surface 25) side is to be roughly the same width from top to two base end part of little sword 21.On the other hand, the width of the resist pattern of rear side is from top to two base end part for little sword 21, it to be increased gradually.Therefore, near the little tread degree of the back side (the non-shear surface 26) side top of little sword 21 is less, and the closer to base end part, little tread degree becomes larger.That is, make to increase near the etched degree of the rear side top of little sword 21, and the closer to base end part, the etched degree of rear side becomes less.Moreover the hypotenuse portion 27 forming with etching action, as shown in Figure 1, in sword bore ends, forms along the periphery in the sword hole 22 of semicircle shape.In Fig. 1, with the index line X-X of section, represent to be equivalent to the position at the top of little sword 21, in Fig. 1, with the index line Y-Y of section, represent to be equivalent to the position of the base end part of little sword 21.
The section shape of having shown the little sword 21 of the inner edge blank 11 obtaining through etch processes in Fig. 7.Fig. 7 (a) has shown the section of the little sword 21 at top, and Fig. 7 (b) has shown the section of the little sword 21 of base end part.In Fig. 7:
W1 is the little tread degree of the shear surface 25 at top, also has overall with W.
W2 is the little tread degree of the non-shear surface 26 at top.
B1 is the little tread degree of the shear surface 25 of base end part, also has overall with B.
B2 is the little tread degree of the non-shear surface 26 of base end part.
α 1 is the angle of the cutting edge 28 at top.
α 2 is angles of the cutting edge 28 of base end part.
β 1 is the angle of the corner part 29 at top.
β 2 is angles of the corner part 29 of base end part.
There is following relation in the size of the each part mentioned above in this embodiment and angle.
(W1＝B1)
(B2＞W2)
(α2＞α1)
(β1＞β2)
As above-mentioned, by the overall with B of the base end part of the overall with W at the top of little sword 21 and little sword 21 is being set as on identical basis, the angle [alpha] of the cutting edge of base end part 28 2 is set greatlyr than the angle [alpha] of the cutting edge at top 28 1, can the sectional area S2 of the little sword 21 of base end part be set greatlyr than the sectional area S1 of the little sword 21 at top.This is because the angle of cutting edge 28 is less, and the volume of the etching part being determined by hypotenuse portion 27 is just larger.In addition, due to the sectional area of little sword 21 is become greatly gradually from top to base end part side, thereby the intensity that therefore can improve base end part is fully guaranteed the structural strength of little sword 21 as a whole.And then, the angle of cutting edge 28 is made as to the acute angle of 37 degree, thus the sharp sense of the cutting edge 28 in the time of can improving beard cut-out.
Because the hypotenuse portion 27 of left and right becomes outer expanding shape to the outer surface bending of inner edge 12, therefore can with hypotenuse portion 27 block that hair stubble after cut-out is wanted situation about flying out from sword hole 22 and by it inner surface side to inner edge 12 push up back, as a whole, can prevent well the hair batch situation about flying out to the outer surface of razor head 3 after cut-out.In addition, owing to making the sectional area of little sword 21 become gradually large from top to base end part side, therefore by punch process, inner edge blank 11 is being bent into while falling U-shaped, the flexural deformation that bending stress plays the top of larger effect can be carried out very sleekly, thereby the bending machining of inner edge blank 11 can be carried out reliably.
Inner edge support 13 is the sidewalls 45 by pair of right and left tunnel section shape, forms the middle empty frame shape of upper and lower opening with the support base 46 that is connected the front-back of these sidewalls 45.In the support base 46 of front and back, be formed with for assembling the mount pad 47 of inner edge 12, in the left and right sides of the mount pad 47 of front and back, bloat and be formed with projection 23.Between the opposite face of the front and back of support base 46, be provided with integratedly 3 ribs 48, in the lower end of central ribs 48, be provided with match with driving shaft 17 by moving plate 19 (with reference to Fig. 5).
By punch process, be bent to down the inner edge 12 of U-shaped, be equivalent to the inner edge support 13 of said structure according to following main points assembling.First, whole one side direction mount pad 47 from inner edge support 13 of inner edge 12 is pressed near one side, as shown in Figure 5, breach 24 is being coordinated in projection 23.At this moment, as shown in Figure 6, the edge part 42 of flange 41 is absorbed in the two sides of projection 23, and temporary fixed inner edge 12 under the state not rocking, simultaneously along left and right directions and above-below direction location.Breach 24 is being engaged in the process in projection 23, because edge part 42 forms taper, therefore can more sleekly breach 24 is being inserted and is engaged in projection 23.
Under above-mentioned state, as shown in Figure 6, the heated jig 51 of garden axle shape is inserted from fixing hole 40, then its fore-end is pressed into the heavy wall of mount pad 47.Therefore, be heated fixture 51 fusing, and the plastics of being pushed open by its axle head enter in the inner surface 43 of dome shape of fixing hole 40.Thereupon, by making to enter into the plastics solidification in fixing hole 40, four angle parts of inner edge 12, to fix with respect to the indissociable mode of inner edge support 13, then just can be completed to inner blade unit.Although deposited 52 of solid state is full of fixing hole 40 substantially, from inner surface 43, do not overflow.
Inner blade unit can be implemented well according to following form.
It is the inner blade unit of following electric razor, that is:
It is the inner edge 12 that possesses the U-shaped of being bent into down, and the inner blade unit of the inner edge support 13 of fixed support inner edge 12;
Inner edge support 13 is by pair of right and left sidewall 45, forms the middle empty frame shape of upper and lower opening with the support base 46 that is connected the front-back of two sidewalls 45;
In support base 46, be formed with for assembling the mount pad 47 of inner edge 12, on a plurality of positions of mount pad 47, be provided with for the fixing projection 23 of inner edge 12;
On inner edge 12, be formed with insertion and be engaged in the breach 24 in above-mentioned projection 23, near breach 24, be formed with fixing hole 40;
On the inner edge of breach 24, be formed with than other local thin flanges 41;
Inner edge 12 being assembled on the mount pad 47 of inner edge support 13, then breach 24 is engaged under the state in projection 23, the edge part 42 of flange 41 is absorbed in the side face of projection 23, and inner edge 12 is temporarily fixed on inner edge support 13;
By heated jig 51 being inserted to the fixing hole 40 of the inner edge 12 under temporary fixed state, and the heavy wall of fusing mount pad 47, and solidified after the plastics that make fusing are invaded fixing hole 40, inner edge 12 is just really fixed on inner edge support 13.
According to the inner blade unit of above-mentioned formation, due to inner edge 12 is being temporarily fixed under the state on mount pad 47, make edge part 42 be absorbed in the side face of projection 23, therefore inner edge 12 correctly can be located under the state not rocking with respect to inner edge support 13, and can continue to keep temporary fixed state.In addition, owing to can therefore can being only absorbed in deposited operation will inner edge directly carrying out deposited operation under the state of 12 location, can be more reliably and carry out simply deposited operation.Also need not use positioning fixture, for keeping fixture of interim installment state etc.Moreover, in operation sample state in the past, owing to carrying out deposited operation under location keeps the state of inner edge, therefore exist and in deposited result, produce uneven situation.
Be located at the edge part 42 on the inner edge of breach 24, can form from the insertion top side direction of breach 24 and insert the taper that end side front end dwindles, the taper dwindling to the inside of breach 24.
At this moment, the amount of being absorbed in of the edge part 42 in the time of can increasing gradually the two sides that are absorbed in projection 23, thus can round and smooth and easily carry out the insertion compounding practice with respect to the breach 24 of projection 23.Moreover the shape of edge part 42 need not be the taper that the inside to breach 24 dwindles, and can be also the コ word shape similar to breach 24.At this moment, if projection 23 is formed to isosceles-trapezium-shaped, or only a side, possess the trapezoidal shape of hypotenuse, just can bring into play the effect that is absorbed in same when edge part 42 is formed to taper.
Fixing hole 40 can form in the process that forms inner edge 12 with etching method simultaneously.
At this moment, by making molten plastic it be solidified after being full of the fixing hole 40 that inner surface 43 is formed dome shape, can be indissociably fixing inner edge 12, therefore also need not deposited projection be set in mount pad 47 these sides, can be fixed on inner edge support 13 inner edge 12 is deposited.
Other embodiment that below shows inner edge 12 of the present invention.Fig. 9 to Figure 17 is the figure that has changed the section shape of little sword 21, and Figure 18 and Figure 19 are the figure that has changed the formation figure of little sword 21.No matter being any situation, is all the main explanation part different from the above embodiments, and on the parts identical with the above embodiments, is marked with identical label and the description thereof will be omitted.
In Fig. 9, make the little tread degree B1 of shear surface 25 of base end part more a little bit smaller a little than the little tread degree W1 of the shear surface at top 25.Strictly (W > B), but actual size is when W1 is made as to 0.43mm, and B1 is 0.38mm, therefore can be considered as (
).In addition, the little tread degree B2 of the non-shear surface 26 of base end part is set than the little tread degree W2 of the non-shear surface 26 at top large (B2 > W2).In this embodiment, the section of the section of the little sword 21 of base end part and the little sword 21 at top also all forms down respectively isosceles-trapezium-shaped.In addition, about the sectional area at base portion and top, also make its relation that meets (S2 > S1), thereby guarantee the structural strength of the base end part of little sword 21.In the embodiment of Fig. 9 to Figure 17, equally also make it meet the relation of (S2 > S1).
In Figure 10, make the little tread degree W1 of shear surface 25 at top identical with the little tread degree B2 of the non-shear surface 26 of base end part, thereby make (W=B).In addition, the little tread degree B2 of the non-shear surface 26 of base end part is set than the little tread degree B1 of shear surface 25 large (B2 > B1).In this embodiment, the section of the little sword 21 of base end part can be formed to isosceles-trapezium-shaped, then make the sectional area of top and base end part meet the relation of formula (S2 > S1).Like this, if make the little tread degree of shear surface 25 from top to base end part narrowed width, just can simultaneously dwindle little sword 21 with respect to the contact area of outside 10, one side improves the structural strength of little sword 21.In addition, be only this part of contact area that can dwindle little sword 21, the resistance to sliding in the time of just can alleviating beard and cut off, thus can cut down the power consumption of electric razor.
Little sword 21 shown in Figure 11, similarly forms isosceles-trapezium-shaped by the section of the little sword 21 of base end part with Figure 10, and makes the little tread degree B2 of the non-shear surface 26 of base end part be less than the little tread degree W1 of the shear surface 25 at top.Be exactly strictly (W > B), but actual size is that when W1 is made as to 0.43mm, B2 is 0.38mm, therefore can be considered as (
).
Little sword 21 shown in Figure 12, forms down isosceles-trapezium-shaped by the section of the little sword 21 of base end part, and makes the little tread degree B1 of the shear surface 25 of base end part be greater than the little tread degree W1 of the shear surface 25 at top.Be exactly strictly (W < B), but actual size is that when W1 is made as to 0.43mm, B1 is 0.45mm, therefore can be considered as (
).Like this, if make the overall with B of base end part be greater than the overall with W at top, just can expand the sectional area S2 of base end part, thereby can improve the structural strength of little sword 21.
Little sword 21 shown in Figure 13, forms isosceles-trapezium-shaped by the section of the little sword 21 of base end part, and makes the little tread degree B2 of the non-shear surface 26 of base end part be greater than the little tread degree W1 of the shear surface 25 at top.Be exactly strictly (W < B), but actual size is that when W1 is made as to 0.43mm, B2 is 0.45mm, therefore can be considered as (
).
Little sword 21 shown in Figure 14, forms down isosceles-trapezium-shaped by the section of the little sword 21 of base end part, and makes the little tread degree B1 of shear surface 25 of base end part and the little tread degree W1 that the little tread degree B2 of non-shear surface 26 is greater than respectively the shear surface 25 at top.Be exactly strictly (W < B), but actual size is that when W1 is made as to 0.43mm, B1 is 0.48mm, B2 is 0.45mm, therefore can be considered as (
).
Little sword 21 shown in Figure 15, forms isosceles-trapezium-shaped by the section of the little sword 21 of base end part, and makes the little tread degree B1 of shear surface 25 of base end part and the little tread degree W1 that the little tread degree B2 of non-shear surface 26 is greater than respectively the shear surface 25 at top.Be exactly strictly (W < B), but actual size is that when W1 is made as to 0.43mm, B1 is 0.45mm, B2 is 0.48mm, therefore can be considered as (
).
Little sword 21 shown in Figure 16, is used the hypotenuse portion 27 that etch processes forms to terminate at base end part, and makes the little tread degree B1 of shear surface 25 of base end part identical with the little tread degree B2 of non-shear surface 26.By making like this (B1=B2), the section shape of base end part can be made as to the quadrangle of the side portion 27 that possesses sunken inside shape, and can expand the sectional area S2 of base end part and improve the structural strength of little sword 21.
Little sword 21 shown in Figure 17, by the hypotenuse portion 27 forming by etch processes only limit to be formed on from top to base end part near, and make to comprise the little tread degree B1 of shear surface 25 of the certain area of base end part, identical with the little tread degree B2 of non-shear surface 26 of certain area that comprises base end part.Like this, by making (B1=B2) comprising on the certain area of base end part, can improve the structural strength of little sword 21.The certain area that comprises base end part can be selected in the length range not dividing with the little blade of outside 10 sliding-contacts, and its section shape is the quadrangle that possesses the side portion 27 of sunken inside shape.
Inner edge 12 shown in Figure 18, is adjacent to form at certain intervals a hair stubble tap 35 with the both ends in the sword hole 22 of inner edge 12 with Fig. 1 explanation.Hair stubble tap 35 forms 1 according to every 2 adjacent sword holes 22.By hair stubble tap 35 is set by this way, can prevent that the hair stubble of cut-out from saving bit by bit the inside at inner edge support 13.In addition, when water cleans, can also effectively the hair stubble in inner edge 12 be discharged from hair stubble tap 35 together with draining.
Inner edge 12 shown in Figure 19 is by little sword 21 and sword the hole 22 together state configuration to tilt.Like this, little sword 21 and sword hole 22 just need not form abreast with the short leg of inner edge 12.In addition, as required, little sword 21 can also form partial arc shape, or continuous wave.
Figure 20 has shown and has changed inner edge 12 other embodiment with respect to the fixed structure of inner edge support 13.At this, in the left and right central authorities of the mount pad 47 of the front and back of inner edge support 13, projection 23 is set.In addition, at the turning, two of left and right of the assembly wall of the front and back of inner edge 12, fixing hole 40 is set, thereby can inner edge 12 be fixed on mount pad 47 with deposited 52 that is full of its inside.Other part is identical with the embodiment with Fig. 5 explanation, therefore identical parts is marked with to identical label and the description thereof will be omitted.
In the embodiment of Figure 20, although make the part fusing of mount pad 47, form deposited 52, but as required, the outstanding less deposited projection 55 of size also can be set on the position corresponding with fixing hole 40 of mount pad 47, thereby increase the amount of the plastics that are full of fixing hole 40.At this moment, as shown in figure 21, the deposited projection 55 match with fixing hole 40 is set on mount pad 47, then the spigot surface 56 of the inclination that faces down from the upper end of the cardinal extremity periphery of deposited projection 55 to the protruding end of projection is set.Like this, if spigot surface 56 is set in deposited projection 55, when breach 24 insertions are engaged in projection 23, can cross and guide inner edge 12 along spigot surface 56, even if therefore deposited projection 55 is set on mount pad 47, also inner edge 12 can be temporarily fixed on inner edge support 13 sleekly.Moreover the section shape of deposited projection 55 can form the section shape arbitrarily such as circle or polygonal.With the inner edge support 13 of Figure 21 explanation, be on the mount pad 47 of the inner edge support 13 with Fig. 4 explanation, to have added the embodiment of deposited projection 55, but deposited projection 55 also can be attached on the inner edge support 13 with Figure 20 explanation equally.
Figure 22 has shown another other embodiment of inner edge 12.At this, by the little tread degree W2B2 of the non-shear surface 26 of top and base end part, set greatlyr than the little tread degree W1B1 of the shear surface of top and base end part 25, thereby the section of little sword 21 is formed to isosceles-trapezium-shaped from top to base end part.In addition, although the little tread degree W2 of the non-shear surface 26 at top, identical with the little tread degree B2 of the non-shear surface 26 of base end part, but the little tread degree B1 of the shear surface of base end part 25 is set greatlyr than the little tread degree W1 of the shear surface at top 25, thereby make the sectional area S2 of base end part be greater than the sectional area S1 at top.
There is following relation in the size of the above-mentioned each several part of this embodiment and angle.
(W1＜B1)
(W2＝B2)
(α2＞α1)
(β1＜β2)
Inner edge 12 can form by implementing etch processes on the inner edge blank 11 stamping.The present invention can be applied to all inner edges of slit sword structure, and certainly much less main sword, mainly can be applied to cut off the inner edge of the center sword of long hair, curly hair.
Claims (7)
1. an electric razor, have outside (10) and the inner edge (12) grown crosswise in left and right, and the inner surface along outside (10) back and forth drives by inner edge (12), it is characterized in that:
Inner edge (12) alternately possesses the little sword (21) of rib shape and the sword hole (22) of slit-shaped;
Little sword (21) by the shear surface (25) of outer surface, the non-shear surface (26) of inner surface and the side portion (27) that bends to the left and right of sunken inside shape form;
The overall with (B) of the overall with (W) at the top of little sword (21) and the base end part of little sword (21) is set to roughly the same;
The angle of the cutting edge of base end part (28) (α 2) is set greatlyr than the angle of the cutting edge at top (α 1), and the sectional area (S2) of the little sword (21) of base end part is set greatlyr than the sectional area (S1) of the little sword (21) at top
The little tread degree (B2) of the non-shear surface (26) of base end part is set greatlyr than the little tread degree (W2) of the non-shear surface (26) at top.
2. electric razor as claimed in claim 1, is characterized in that, the little tread degree (W2B2) of non-shear surface (26) increases to base end part gradually from the top of little sword (21).
3. electric razor as claimed in claim 1 or 2, is characterized in that:
The little tread degree (B1) of the little tread degree (W1) of the shear surface at top (25) and the shear surface (25) of base end part is set to roughly the same;
The little tread degree (B1) of the shear surface of base end part (25) is set greatlyr than the little tread degree (B2) of the non-shear surface (26) of base end part, and the top from little sword (21) is formed to the isosceles-trapezium-shaped of the hypotenuse portion (27) that possesses sunken inside shape to the section of base end part.
4. electric razor as claimed in claim 1 or 2, is characterized in that:
The little tread degree (B1) of the little tread degree (W1) of the shear surface at top (25) and the shear surface (25) of base end part is set to roughly the same;
The little tread degree (B1) of the shear surface of base end part (25) is set to such an extent that equate with the little tread degree (B2) of the non-shear surface (26) of base end part, and the section of the little sword (21) of base end part is formed to the quadrangle of the side portion (27) that possesses sunken inside shape.
5. electric razor as claimed in claim 1 or 2, is characterized in that:
The little tread degree (B1) of the shear surface of base end part (25) is set littlely than the little tread degree (W1) of the shear surface at top (25);
The little tread degree (B2) of the non-shear surface (26) of base end part is set greatlyr than the little tread degree (B1) of the shear surface of base end part (25), and the section of the little sword (21) of base end part is formed to the isosceles-trapezium-shaped of the hypotenuse portion (27) that possesses sunken inside shape.
6. electric razor as claimed in claim 1 or 2, is characterized in that:
The little tread degree (B1) of the shear surface of base end part (25) is set littlely than the little tread degree (W1) of the shear surface at top (25);
The little tread degree (B1) of the shear surface of base end part (25) is set greatlyr than the little tread degree (B2) of the non-shear surface (26) of base end part, and the section of the little sword (21) of base end part is formed to the isosceles-trapezium-shaped of the hypotenuse portion (27) that possesses sunken inside shape.
7. an electric razor, have outside (10) and the inner edge (12) grown crosswise in left and right, and the inner surface along outside (10) back and forth drives by inner edge (12), it is characterized in that:
Inner edge (12) alternately possesses the little sword (21) of rib shape and the sword hole (22) of slit-shaped;
Little sword (21) is by the shear surface (25) of outer surface, the non-shear surface (26) of inner surface and the side portion (27) that bends to the left and right of sunken inside shape form, and the section from the top of little sword (21) to base end part forms isosceles-trapezium-shaped;
The overall with (B) of the overall with (W) at the top of little sword (21) and the base end part of little sword (21) is set to roughly the same;
The little tread degree (B1) of the shear surface of base end part (25) is set greatlyr than the little tread degree (W1) of the shear surface at top (25), and the sectional area (S2) of the little sword (21) of base end part is set greatlyr than the sectional area (S1) of the little sword (21) at top
The angle of the cutting edge of base end part (28) (α 2) is set greatlyr than the angle of the cutting edge at top (α 1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009119324A JP5435552B2 (en) | 2009-05-15 | 2009-05-15 | Electric razor |
| JP2009-119324 | 2009-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101885184A CN101885184A (en) | 2010-11-17 |
| CN101885184B true CN101885184B (en) | 2014-11-12 |
Family
ID=42746758
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202915442U Expired - Fee Related CN201586990U (en) | 2009-05-15 | 2009-12-18 | Electric shaver |
| CN200910261508.6A Expired - Fee Related CN101885184B (en) | 2009-05-15 | 2009-12-18 | Electric razor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202915442U Expired - Fee Related CN201586990U (en) | 2009-05-15 | 2009-12-18 | Electric shaver |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5435552B2 (en) |
| CN (2) | CN201586990U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5435552B2 (en) * | 2009-05-15 | 2014-03-05 | 日立マクセル株式会社 | Electric razor |
| JP6088891B2 (en) * | 2013-04-04 | 2017-03-01 | 日立マクセル株式会社 | Electric razor |
| CN111872981A (en) * | 2019-12-05 | 2020-11-03 | 元海医疗科技有限公司 | Moving knife, blade component and forming process of moving knife |
| CN113001596A (en) * | 2021-03-29 | 2021-06-22 | 浙江海顺电工有限公司 | Moving knife capable of preventing knife slot from being blocked |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2307471A (en) * | 1938-09-21 | 1943-01-05 | Remington Rand Inc | Shaving implement |
| JP4739638B2 (en) * | 2002-06-17 | 2011-08-03 | パナソニック電工株式会社 | Structure of inner blade of electric razor |
| JP2005198795A (en) * | 2004-01-15 | 2005-07-28 | Izumi Products Co | Method of manufacturing cutter of reciprocating type electric razor and cutter |
| JP2005253856A (en) * | 2004-03-15 | 2005-09-22 | Izumi Products Co | Method of manufacturing cutter of reciprocating electric razor |
| JP2006042899A (en) * | 2004-07-30 | 2006-02-16 | Matsushita Electric Works Ltd | Inner blade of reciprocating type electric razor |
| KR200391316Y1 (en) * | 2005-01-28 | 2005-08-02 | 오태준 | Cutting blade assembly of electric shave |
| JP2007215595A (en) * | 2006-02-14 | 2007-08-30 | Kyushu Hitachi Maxell Ltd | Electric razor |
| JP4225329B2 (en) * | 2006-07-21 | 2009-02-18 | パナソニック電工株式会社 | Electric razor |
| CN201161395Y (en) * | 2008-01-14 | 2008-12-10 | 游图明 | Blade of electric razor |
| JP5435552B2 (en) * | 2009-05-15 | 2014-03-05 | 日立マクセル株式会社 | Electric razor |
-
2009
- 2009-05-15 JP JP2009119324A patent/JP5435552B2/en active Active
- 2009-12-18 CN CN2009202915442U patent/CN201586990U/en not_active Expired - Fee Related
- 2009-12-18 CN CN200910261508.6A patent/CN101885184B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN201586990U (en) | 2010-09-22 |
| JP5435552B2 (en) | 2014-03-05 |
| CN101885184A (en) | 2010-11-17 |
| JP2010264140A (en) | 2010-11-25 |
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Effective date of registration: 20180213 Address after: Kyoto Japan Patentee after: Mike SEIR Holdings Co., Ltd. Address before: Fukuoka Prefecture Patentee before: Kyushu Hitachi Mcsell Co., Ltd. |
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Granted publication date: 20141112 Termination date: 20201218 |