CN104942839A - Hair clipper, head unit of same, and movable blade of same - Google Patents
Hair clipper, head unit of same, and movable blade of same Download PDFInfo
- Publication number
- CN104942839A CN104942839A CN201510036562.6A CN201510036562A CN104942839A CN 104942839 A CN104942839 A CN 104942839A CN 201510036562 A CN201510036562 A CN 201510036562A CN 104942839 A CN104942839 A CN 104942839A
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- China
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- zone
- blade
- cutting edge
- edge angle
- movable tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/3846—Blades; Cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
- B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
- B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
Abstract
The invention provides a hair clipper, a head unit of the same, and a movable blade of the same. The movable blade of hair clippers includes a plurality of unit blades. A distal region, an intermediate region, and a root region that have mutually different bevel angles are arranged in the longitudinal direction of each unit blade. The Distal region is formed on the tip side of the unit blade, and has a bevel angle which is less liable to cause irritation to a target region compared with the intermediate region and the root region. The root region is formed on the root side of unit blade, and has a bevel angle having a lower cut resistance to the hair compared with the distal region and the intermediate region. The intermediate region is formed between the distal region and the root region of the unit blade, and has a bevel angle set so that the bevel angle smoothly varies from the distal region toward the root region. The present disclosure can provide hair clippers that are inhibited from applying strong irritation to a target region, the head unit thereof, and the movable blade thereof.
Description
Technical field
The present invention relates to a kind of hair cutter (Hair clippers), the head unit (Head unit) of hair cutter and the movable tool of hair cutter of getting a haircut.
Background technology
The occupation mode of hair cutter is such as divided into the following two kinds: a kind of occupation mode is installed to by installation fitting (Attachment) to adjust cutting range (Clipping height) in main body, and another kind of occupation mode is cut short by hair with not using installation fitting.For the occupation mode of the latter, because fixed cutting tool directly and the object location contacts such as skin, so the part likely producing object position enters between fixed cutting tool and movable tool, thus fixed cutting tool and movable tool is made to apply the drawback of intense stimulus to this part.Such stimulation can be brought uncomfortable sensation by the people's (hereinafter referred to as by barber) got a haircut, and therefore, preferably, as far as possible such situation does not occur.In addition, cutting range refers to the distance between position and the root of hair utilizing hair cutter to cut off hair.The length of the hair after haircut depends on cutting range.
Patent document 1 (Japanese Unexamined Patent Publication 11-57244 publication) discloses an example of the head unit of the hair cutter for solving above-mentioned problem.This head unit has: fixed cutting tool and movable tool, and this fixed cutting tool has the multiple units blade arranged in the width direction, and this movable tool has the multiple units blade arranged equally in the width direction.The unit blade of movable tool has cutting edge angle the 1st different region of (Japanese: the first angle of sword) and the 2nd region.1st region is formed at the part of the root side of the length direction of movable tool, and this cutting edge angle is set to the angle in the prescribed limit being suitable for dod.2nd region is formed at the part of the tip side of the length direction of movable tool, and its cutting edge angle is set to larger than the cutting edge angle in the 1st region.
For this head unit, the cutting edge angle easily sandwiching the tip side of the movable tool at object position is set larger, therefore, even if sandwiched the part at object position between the unit blade and the unit blade of movable tool of fixed cutting tool, fixed cutting tool and movable tool have also been difficult to apply comparatively strong impulse to this part.
Summary of the invention
In the movable tool of patent document 1, exist because foozle causes the length in the 1st region and the length in the 2nd region to produce the situation of deviation.Such as, when the length in the 2nd region is shorter than the length in preferable range, lengthen the length in the 1st region according to the difference between the length in the 2nd region of preferred length and reality.After the shape of the unit blade of such movable tool is studied from the effect aspect that the 1st region and the 2nd region play separately, carry out following explanation.
When observing from the tip side of the unit blade of movable tool, apply for the 2nd region of intense stimulus for contributing to preventing to object position, it is not present in than the position of the position designed in advance by the tip side of unit blade.And on the contrary, the 1st region being applicable to cut off hair just exists near the position on the top of unit blade from than the position designed in advance.
Therefore, the amount of intense stimulus cannot be applied when being included in preferred scope separately from constituent parts blade even if the amount at the object position between the unit blade of the movable tool that the length entering into the unit blade of fixed cutting tool and the 2nd region is shorter than the length in preferable range is the length in length in the 1st region and the 2nd region, but because the length in the 2nd region is shorter, still intense stimulus can be applied from constituent parts blade.
The object of the present invention is to provide a kind of hair cutter, the head unit of this hair cutter and the movable tool of this hair cutter that are difficult to apply to object position to stimulate.
Hair cutter of the present invention has the movable tool having multiple units blade, and the length direction arrangement along unit blade is formed with cutting edge angle apex zone different from each other (Distal region), zone line (Intermediate region) and root area (Root region).Apex zone is formed at the tip side of unit blade, compares with root area with zone line, has the cutting edge angle being difficult to apply to object position to stimulate.Root area is formed at the root side of unit blade, compares with zone line with apex zone, has when cutting off hair and cuts off the less cutting edge angle of resistance (Cut resistance).Between the apex zone that zone line is formed at unit blade and root area, for this zone line, the mode changed smoothly from apex zone to root area to make cutting edge angle sets its cutting edge angle.
Adopt the head unit of hair cutter of the present invention, this hair cutter and the movable tool of this hair cutter, the haircut being difficult to apply to object position to stimulate can be carried out.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the hair cutter of embodiments of the present invention.
Fig. 2 is the side view of the head unit of present embodiment.
Fig. 3 is the front view of the head unit of present embodiment.
Fig. 4 is the fixed cutting tool of present embodiment and the stereogram of movable tool.
Fig. 5 is the fixed cutting tool of present embodiment and the front view of movable tool.
Fig. 6 is the side view of the unit blade of the fixed cutting tool of present embodiment and the unit blade of movable tool.
Fig. 7 is the front view of the unit blade of the movable tool of present embodiment.
Fig. 8 A is the profile of the Z8A-Z8A line along Fig. 7.
Fig. 8 B is the profile of the Z8B-Z8B line along Fig. 7.
Fig. 8 C is the profile of the Z8C-Z8C line along Fig. 7.
Fig. 8 D is the profile of the Z8D-Z8D line along Fig. 7.
Fig. 8 E is the profile of the Z8E-Z8E line along Fig. 7.
Fig. 8 F is the profile of the Z8F-Z8F line along Fig. 7.
Fig. 8 G is the profile of the Z8G-Z8G line along Fig. 7.
Fig. 8 H is the profile of the Z8H-Z8H line along Fig. 7.
Fig. 8 I is the profile of the Z8I-Z8I line along Fig. 7.
Fig. 8 J is the profile of the Z8J-Z8J line along Fig. 7.
Detailed description of the invention
(example of the embodiment that the blade of hair cutter of the present invention and hair cutter can be taked)
(1) movable tool of the hair cutter of the 1st technical scheme of the present invention has the movable tool having multiple units blade, in movable tool, the length direction arrangement along unit blade is formed with cutting edge angle apex zone different from each other, zone line and root area.Apex zone is formed at the tip side of unit blade, and compares with root area with zone line, has the cutting edge angle being difficult to apply to object position to stimulate.Root area is formed at the root side of unit blade, compares with zone line with apex zone, has when cutting off hair and cuts off the less cutting edge angle of resistance.Between the apex zone that zone line is formed at unit blade and root area, for zone line, the mode changed smoothly from apex zone to root area to make cutting edge angle sets its cutting edge angle.
Adopt the technical program, when the length of apex zone is shorter than the length in preferable range, compared with root area, relative to apex zone, the change of cutting edge angle slowly zone line just exist near the position on the top of unit blade from than the position designed in advance.On the other hand, the part by apex zone side in this zone line is formed in the mode making cutting edge angle and change smoothly from apex zone.Therefore, this part is in fact identical contributing to being difficult to applying to object position in intense stimulus with apex zone, or has the effect roughly the same with apex zone.Its result, even if when the length of apex zone is shorter than the length in preferable range, as compared to the structure making apex zone and root area be formed continuously with there is not zone line, the unit blade of fixed cutting tool and the unit blade of movable tool are difficult to apply intense stimulus to the object position entered into each other.
(2) adopt the movable tool of the hair cutter of the 2nd technical scheme of the present invention, the cutting edge angle of the entirety of apex zone than the cutting edge angle of zone line and the cutting edge angle of root area large.
Adopt the technical program, compare than the cutting edge angle of zone line and the little structure of the cutting edge angle of root area with the part of the cutting edge angle of apex zone, be difficult to apply to object position further to stimulate.
(3) adopt the movable tool of the hair cutter of the 3rd technical scheme of the present invention, the blade width of zone line goes towards the mid portion of zone line from apex zone side and narrows gradually, goes and broaden gradually from mid portion towards root area side.
Adopt the technical program, when unit blade and the hair contact of movable tool, there is the situation of this hair along the knife edge (Edge) movement of unit blade.Based on the situation that the unit blade of movable tool reciprocatingly moves along the direction orthogonal with the length direction of unit blade (following, be called width) relative to fixed cutting tool, easily promote that the direction that this hair narrows towards the blade width of unit blade is moved.Therefore, hair easily concentrates on the mid portion of zone line.Because every root hair is all very thin, so be not easy to cut off hair individually.But it is possible to confirm, compared with will cutting off the situation of hair individually, when cutting off many hairs at the same time, more easily make hair be cut off.This hair suggesting the mid portion concentrating on zone line is easily cut off.Adopt the technical program, be easy to hair is cut off.
(4) adopt the movable tool of the hair cutter of the 4th technical scheme of the present invention, the rake face (Rake face) being formed at zone line is curved surface.
The cutting edge angle of unit blade according to be formed at unit blade rake face shape and change.Such as, when the shape of rake face is inclined plane, will be difficult to cutting edge angle is changed.That is, when the shape of the rake face being formed at zone line is inclined plane, by the shape being difficult to manufacture the cutting edge angle of sening as an envoy to zone line and changing smoothly from apex zone to root area.
Adopt the technical program, the shape being formed at the rake face of zone line is curved surface, therefore, easily makes the cutting edge angle of zone line change.Therefore, compared with being the situation of inclined plane with the shape of the rake face being formed at zone line, easily manufacture the shape that the cutting edge angle of sening as an envoy to zone line changes smoothly from apex zone to root area.
(5) adopt the movable tool of the hair cutter of the 5th technical scheme of the present invention, the length of root area on the length direction of unit blade is the over half of the total length of unit blade.
The present inventor confirms, when the length of root area on the length direction of unit blade is the total length of unit blade over half, will obtain the effect useful to the ability aspect of cutting off hair.Adopt the technical program, contribute to improving the ability of cutting off hair.
(6) head unit of the hair cutter of the 6th technical scheme of the present invention has the fixed cutting tool having multiple units blade and the movable tool of carrying out the hair cutter according to any one of above-mentioned (1) ~ (5) moved back and forth relative to fixed cutting tool.
Adopt the technical program, the effect identical with the effect utilizing the movable tool of hair cutter to obtain can be obtained.
(7) adopt the head unit of the hair cutter of the 7th technical scheme of the present invention, movable tool have in apex zone go towards top and leave gradually from fixed cutting tool, with the facing opposite face of fixed cutting tool.
Adopt the technical program, the apex zone of movable tool does not contact with the unit blade of fixed cutting tool.That is, even if the part at object position enters between the unit blade of fixed cutting tool and the unit blade of movable tool, this part is also difficult to be jammed.Therefore, fixed cutting tool and movable tool are just difficult to apply strong impulse to this part.When the part at object position contacts with apex zone, apex zone plays a role in the mode rolled back at object position.Its result, the part at object position is difficult to enter into further between the unit blade of fixed cutting tool and the unit blade of movable tool.Adopt the technical program, will be difficult to apply further to object position to stimulate.
(8) hair cutter of the 8th technical scheme of the present invention has the head unit of (6) and the hair cutter according to any one of (7).
Adopt the technical program, the effect identical with the effect utilizing the head unit of above-mentioned hair cutter to obtain can be obtained.
(embodiment)
With reference to Fig. 1, the structure of hair cutter 1 is described.
Hair cutter 1 has the user main body 10 held and the head unit 20 be arranged in main body 10 for hair cutter 1.Main body 10 has the driver element (omitting diagram) driving hair cutter 1 and the power supply unit (omitting diagram) supplying electric power to driver element in inside.
With reference to Fig. 2 and Fig. 3, the structure of head unit 20 is described.
Head unit 20 has: the fixed cutting tool 30 being fixed on the top of head unit 20; Relative to the movable tool 40 that fixed cutting tool 30 moves back and forth; For the fixed mount (Frame) 21 of supporting and fixing cutter 30 and the retainer 22 for supporting movable tool 40.Head unit 20 also has the spring 25 that movable tool 40 and fixed cutting tool 30 are contacted with each other.
As shown in Figure 2, fixed mount 21 for fixed cutting tool 30 from be configured with movable tool 40 side opposite side supporting and fixing cutter 30, and to make fixed cutting tool 30 keep fixed cutting tool 30 relative to the mode that fixed mount 21 does not misplace.Retainer 22 for movable tool 40 from be configured with fixed cutting tool 30 side opposite side and support movable tool 40, and to make movable tool 40 keep movable tool 40 relative to the mode that retainer 22 does not misplace.
As shown in Figure 3, retainer 22 has the plate (plate) 23 be pushed in movable tool 40 and the installation portion 24 being installed on plate 23.When head unit 20 being installed to main body 10 (with reference to Fig. 1) and being upper, installation portion 24 has been connected with a part for driver element, and only transmits the composition of the width of head unit 20.Its result, retainer 22 is formed as reciprocatingly moving along the width of head unit 20.
Spring 25 is installed on fixed mount 21.Spring 25 plays effect movable tool 40 and plate 23 pressed to fixed cutting tool 30 side.Spring 25 has the structure be joined to one another by 2 torsion springs (Torsion spring) as an example.
Fixed cutting tool 30 has multiple units blade 31.Multiple units blade 31 equally spaced arranges along the width of head unit 20, is formed with slit (Slit) 32 between unit blade 31 and unit blade 31.Fixed cutting tool 30 is fixed on fixed mount 21.
The base 43 that movable tool 40 has tabular and the multiple units blade 41 formed in the mode of stretching out from base 43.Multiple units blade 41 equally spaced arranges on the direction that the orientation of the unit blade 31 with fixed cutting tool 30 is identical, is formed with slit 42 between unit blade 41 and unit blade 41.Base 43 is pressed to fixed cutting tool 30 side by spring 25.Movable tool 40 is formed as moving back and forth along with retainer 22, reciprocatingly moves with the width of the mode of sliding relative to the unit blade 31 of fixed cutting tool 30 along head unit 20.
With reference to Fig. 4 and Fig. 5, the structure of the unit blade 31 of fixed cutting tool 30 is described.
The unit blade 31 of fixed cutting tool 30 is the relation of line symmetry relative to the center line of the width of unit blade 31.Unit blade 31 comprises: for supporting the side 33 of the hair slipping into slit 32; As the top end face 34 in the face on the top of the length direction of unit blade 31; And to slide relative to the unit blade 41 of movable tool 40, as the sliding surface 35 of the opposite face facing with movable tool 40.Top end face 34 is the shapes with round shape.As shown in Figure 5, the blade width of the width of the sliding surface 35 on the width of unit blade 31, i.e. unit blade 31, goes towards top end face 34 side and narrows gradually.
With reference to Fig. 4 ~ Fig. 6, the structure of the unit blade 41 of movable tool 40 is described.
The unit blade 41 of movable tool 40 is the relation of line symmetry relative to the center line of the width of unit blade 41.Unit blade 41 comprises: for supporting by the rake face 44 of the hair cut off; Slide relative to the sliding surface 35 of fixed cutting tool 30, as the sliding surface 46 of the opposite face facing with fixed cutting tool 30; As the end face 47 in the face with sliding surface 46 opposite side; And as the top end face 48 in the face on the top of the length direction of unit blade 41.Rake face 44 is in the reinforcement face 45 be partially formed for strengthening unit blade 41 of the root side of unit blade 41.
As shown in Figure 5, the top portion of the top portion of the top end face 34 of fixed cutting tool 30 and the top end face 48 of movable tool 40 opens distance LA in the length direction overhead of unit blade 41.This distance LA is preferably in the scope of 0mm ~ 0.7mm.This distance LA is more preferably in the scope of 0mm ~ 0.3mm.One example of this distance LA is 0.2mm.
The width of the width of the slit 42 of movable tool 40 and the slit 32 of fixed cutting tool 30 is different.That is, the spacing (Pitch) of the spacing of the unit blade 41 of movable tool 40 and the unit blade 31 of fixed cutting tool 30 is different.As shown in Figure 6, the sliding surface 46 of movable tool 40 goes towards top and gradually away from the sliding surface 35 of fixed cutting tool 30.
With reference to Fig. 4 and Fig. 6, the structure of rake face 44 is described.
Rake face 44 is divided into the 1st, the 2nd, the 3rd and the 4th these 4 faces as an example.1st face is the face of the tip side on the length direction being positioned at unit blade 41 in rake face 44, is to roll oblique inclined plane from end face 47 side towards sliding surface 46.2nd face is and the 1st adjacent face, is roll oblique inclined plane from end face 47 side towards sliding surface 46.The intersection of the 1st and the 2nd is formed as boundary line 49A.
3rd face is and the 1st and the 2nd adjacent face, is the curved surface from end face 47 lateral sliding face 46 lateral bend.1st, the 2nd is formed as boundary line 49B with the intersection of the 3rd.4th face is the face of the root side on the length direction being positioned at unit blade 41 in rake face 44, is and the 3rd adjacent face, is roll oblique inclined plane from end face 47 lateral sliding face 46.The intersection of the 3rd and the 4th is formed as boundary line 49C.
Then, the structure of unit blade 41 is described.
The edge that the unit blade 41 of movable tool 40 is contacting with each other with rake face 44 and sliding surface 46 is formed with the knife edge.When the sliding surface 46 of movable tool 40 slides relative to the sliding surface 35 of fixed cutting tool 30, this knife edge cuts off hair.
Unit blade 41 arranges and is formed with the mutually different apex zone 50 of cutting edge angle, zone line 60 and root area 70 on the length direction of unit blade 41.Apex zone 50 is formed at the tip side of unit blade 41.Root area 70 is formed at the root side of unit blade 41.Zone line 60 is formed between the apex zone 50 of unit blade 41 and root area 70.
Apex zone 50 is compared with root area 70 with zone line 60, has the cutting edge angle being difficult to apply to object positions such as skins to stimulate.The cutting edge angle of apex zone 50 is the angles be made up of top rake face 51 and top sliding surface 52, that top rake face 51 is the rake face 44 of unit blade 41, corresponding with apex zone 50 part, that top sliding surface 52 is the sliding surface 46 of unit blade 41, corresponding with apex zone 50 part.As an example, the cutting edge angle of apex zone 50 is the parts leaning on tip side than the boundary line 49A of the rake face 44 being formed at unit blade 41.Top rake face 51 constitutes the 1st whole and a 3rd 's part.
Root area 70 is compared with zone line 60 with apex zone 50, has when cutting off hair and cuts off the little cutting edge angle of resistance.The cutting edge angle of root area 70 is the angles be made up of root rake face 71 and root sliding surface 72, that root rake face 71 is the rake face 44 of unit blade 41, corresponding with root area 70 part, that root sliding surface 72 is the sliding surface 46 of unit blade 41, corresponding with root area 70 part.The length of root area 70 on the length direction of unit blade 41 is the over half of the total length of unit blade 41.As an example, the cutting edge angle of root area 70 is the parts leaning on root side than the boundary line 49C of the rake face 44 being formed at unit blade 41.Root rake face 71 forms the part of the 3rd and the 4th whole.
For zone line 60, set its cutting edge angle from apex zone 50 to the mode that root area 70 changes smoothly to make its cutting edge angle.The cutting edge angle of zone line 60 is the angles be made up of middle rake face 61 and middle slip face 62, that middle rake face 61 is the rake face 44 of unit blade 41, corresponding with zone line 60 part, that middle slip face 62 is the sliding surface 46 of unit blade 41, corresponding with zone line 60 part.The cutting edge angle of zone line 60 is the parts between the cutting edge angle of apex zone 50 and the cutting edge angle of root area 70, and its angle diminishes from apex zone 50 side gradually to root area 70 side.Middle rake face 61 forms the 2nd whole and a 3rd 's part.
The cutting edge angle of the entirety of apex zone 50 than the cutting edge angle of zone line 60 and the cutting edge angle of root area 70 large.The cutting edge angle of the entirety of root area 70 is less than the cutting edge angle of zone line 60.For the cutting edge angle of apex zone 50, the cutting edge angle by tip side of apex zone 50 is larger than the cutting edge angle by zone line 60 side of apex zone 50.
As shown in Figure 6, top sliding surface 52 is that mode to go from zone line 60 side towards tip side away from the sliding surface 35 of fixed cutting tool 30 tilts.Gap S is formed between top sliding surface 52 and sliding surface 35.
With reference to Fig. 7, the blade width of the unit blade 41 of movable tool 40 is described.
The blade width of the width of the knife edge on the width of unit blade 41, i.e. unit blade 41 is different separately in apex zone 50, zone line 60 and root area 70.Blade width in apex zone 50 from tip side to zone line 60 sides broaden gradually.Blade width narrows gradually from apex zone 50 side to the mid portion of zone line 60 in zone line 60, and from mid portion to root area, 70 sides broaden gradually.Blade width broadens gradually from zone line 60 side to root side in root area 70.
With reference to Fig. 8 A ~ Fig. 8 J, the cutting edge angle of unit blade 41 is described.
Fig. 8 A is the profile of apex zone 50.The cutting edge angle of the apex zone 50 of this part is 72 ° as an example.
Fig. 8 B is the profile leaning on zone line 60 side than the profile of the apex zone 50 shown in Fig. 8 A.As an example, the angle of the cutting edge angle of the apex zone 50 of this part is identical with the angle of the cutting edge angle of the apex zone 50 shown in Fig. 8 A.
Fig. 8 C is the profile leaning on zone line 60 side than the profile of the apex zone 50 shown in Fig. 8 B.As an example, the cutting edge angle of the apex zone 50 of this part is less than the cutting edge angle of the apex zone 50 shown in Fig. 8 B.
Fig. 8 D is the profile of the junction section of apex zone 50 and zone line 60.As an example, the cutting edge angle of this junction section is less than the cutting edge angle of the apex zone 50 shown in Fig. 8 C.
Fig. 8 E is the profile of zone line 60.As an example, the cutting edge angle of the zone line 60 of this part is less than the cutting edge angle of the junction section shown in Fig. 8 D.
Fig. 8 F is the profile leaning on root area 70 side than the profile of the zone line 60 shown in Fig. 8 E.As an example, the cutting edge angle of the zone line 60 of this part is less than the cutting edge angle of the zone line 60 shown in Fig. 8 E.
Fig. 8 G is the profile leaning on the zone line 60 of root area 70 side than the profile of the zone line 60 shown in Fig. 8 F.As an example, the cutting edge angle of the zone line 60 of this part is less than the cutting edge angle of the zone line 60 shown in Fig. 8 F.
Fig. 8 H is the profile of root area 70.As an example, the cutting edge angle of the root area 70 of this part is less than the cutting edge angle of the zone line 60 shown in Fig. 8 G.As an example, the cutting edge angle of the root area 70 of this part is 45 °.
Fig. 8 I is the profile leaning on root side than the profile of the root area 70 shown in Fig. 8 H.As an example, the cutting edge angle of the root area 70 of this part is identical with the angle of the cutting edge angle of the root area 70 shown in Fig. 8 H.
Fig. 8 J is the profile leaning on root side than the profile of the root area 70 shown in Fig. 8 I.As an example, the cutting edge angle of the root area 70 of this part is identical with the angle of the cutting edge angle of the root area 70 shown in Fig. 8 I.
With reference to Fig. 4, the effect of hair cutter 1 is described.
As occupation mode one example of hair cutter 1 (with reference to Fig. 1), the occupation mode of not got a haircut with being arranged on main body 10 (with reference to Fig. 1) by installation fitting (omitting diagram) is described.The fixed cutting tool 30 of hair cutter 1 is resisted against and is cut off by the hair of barber by the object position of barber by user.
In this occupation mode, the fixed cutting tool 30 of hair cutter 1 is directly resisted against object position.The part at object position enters between the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40, likely causes fixed cutting tool 30 and movable tool 40 to apply strong impulse to this part.On the other hand, the movable tool 40 of hair cutter 1 has the cutting edge angle that the apex zone 50 making easily to sandwich object position is difficult to apply to object position to stimulate.Its result, even if the part at object position enters between the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40, fixed cutting tool 30 and movable tool 40 are also difficult to apply to stimulate to this part.
And, for the movable tool 40 of this hair cutter 1, even if when causing due to foozle creating deviation in the length of apex zone 50, the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40 are also difficult to apply to object position to stimulate.Adopt the movable tool 40 of hair cutter 1, when the length of apex zone 50 is shorter than the length in preferable range, compared with root area 70, change for apex zone 50, cutting edge angle slowly zone line 60 just exists near the position on the top of unit blade 41 from than the position designed in advance.On the other hand, the part by apex zone 50 side in this zone line 60 is formed in the mode making cutting edge angle and change smoothly from apex zone 50.Therefore, this part is in fact identical contributing to being difficult to applying to object position in intense stimulus with apex zone 50, or plays the effect roughly the same with apex zone 50.Its result, even if when the length of apex zone 50 is shorter than the length in preferable range, with there is not the structure that zone line 60 ground makes apex zone 50 and root area 70 be formed continuously and compare, the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40 are difficult to apply intense stimulus to the object position entered into each other.
Adopt the movable tool 40 of hair cutter 1, when the length of apex zone 50 is longer than the length in preferable range, this amount grown not is the reduction of root area 70, but shows in the change of zone line 60.That is, zone line 60 relatively diminishes.Therefore, even if when the length of apex zone 50 is longer than the length in preferable range, and there is not the structure that zone line 60 ground makes apex zone 50 and root area 70 be formed continuously and compare, the ability being also difficult to make to cut off hair declines.
Adopt the hair cutter 1 of present embodiment, following effect can be obtained.
(1) adopt the movable tool 40 of hair cutter 1, the cutting edge angle of the entirety of apex zone 50 than the cutting edge angle of zone line 60 and the cutting edge angle of root area 70 large.Its result, the structure less with the cutting edge angle of root area 70 than the cutting edge angle of zone line 60 with a part for the cutting edge angle of apex zone 50 is compared, and will be difficult to apply further to object position to stimulate.
(2) adopt the movable tool 40 of hair cutter 1, when the unit blade 41 of movable tool 40 is with hair contact, there is the situation of this hair along the knife edge movement of unit blade 41.Based on the situation that the unit blade 41 of movable tool 40 reciprocatingly moves along the width of unit blade 41 relative to fixed cutting tool 30, easily promote that the direction that this hair narrows towards the blade width of unit blade 41 is moved.The blade width of zone line 60 goes towards the mid portion of zone line 60 from apex zone 50 side and narrows gradually, goes and broaden gradually from mid portion towards root area 70 side.Its result, hair easily concentrates on the mid portion of zone line 60.
Because every root hair is all very thin, so be not easy to cut off hair individually.But it is possible to confirm, compared with will cutting off the situation of hair individually, when cutting off many hairs at the same time, more easily make hair be cut off.This hair suggesting the mid portion concentrating on zone line 60 is easily cut off.Adopt present embodiment, be easy to hair is cut off.
(3) cutting edge angle of the unit blade 41 of movable tool 40 changes according to the shape of the rake face 44 being formed at unit blade.Such as, when the shape of rake face 44 is inclined planes, will be difficult to cutting edge angle is changed.That is, when the shape of the middle rake face 61 being formed at zone line 60 is inclined planes, by the shape being difficult to manufacture the cutting edge angle of sening as an envoy to zone line 60 and changing smoothly to root area 70 from apex zone 50.
Adopt hair cutter 1 movable tool 40, forming the shape being formed at the 3rd an of part for the middle rake face 61 of zone line 60 is curved surface, therefore, easily makes the cutting edge angle of zone line 60 change.Its result, compared with being the situation of inclined plane, easily manufactures the shape that the cutting edge angle of sening as an envoy to zone line 60 changes from apex zone 50 smoothly to root area 70 with the shape of the middle rake face 61 being formed at zone line 60.
(4) adopt the movable tool 40 of hair cutter 1, the length of root area 70 on the length direction of unit blade 41 is the over half of the total length of unit blade 41.The present inventor confirms, when the length of root area 70 on the length direction of the unit blade 41 of movable tool 40 is the total length of unit blade 41 over half, will obtain the effect useful to the ability aspect of cutting off hair.Adopt present embodiment, contribute to improving the ability of cutting off hair.
(5) adopt the head unit 20 of hair cutter 1, between top sliding surface 52 and sliding surface 35, be formed with gap S.Therefore, apex zone 50 does not contact with the unit blade 31 of fixed cutting tool 30.That is, even if the part at object position enters between the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40, this part is also difficult to be jammed.Therefore, fixed cutting tool 30 and movable tool 40 are just difficult to apply strong impulse to this part.When a part at object position contacts with apex zone 50, apex zone 50 plays a role in the mode rolled back at object position.Its result, the part at object position is difficult to enter into further between the unit blade 31 of fixed cutting tool 30 and the unit blade 41 of movable tool 40.Adopt the head unit 20 of hair cutter 1, will be difficult to apply further to object position to stimulate.
(6) adopt the movable tool 40 of hair cutter 1, the spacing of the spacing of the unit blade 41 of movable tool 40 and the unit blade 31 of fixed cutting tool 30 is different.Such as, when the spacing of unit blade 41 is identical with the spacing of unit blade 31, due to the moment of cutting off hair of each unit blade 41 will be made consistent, just need to cut off many hairs simultaneously.In this case, need to increase the power as the electro-motor of an example of power supply unit.Thus, different by the spacing of the unit blade 31 of the spacing and fixed cutting tool 30 that make the unit blade 41 of movable tool 40, and make such situation be difficult to occur.
(variation)
The concrete form that the movable tool of hair cutter of the present invention can be taked is not limited to the form illustrated in above-mentioned embodiment.In the scope can reaching object of the present invention, the movable tool of hair cutter of the present invention can obtain various forms different from the embodiment described above.The variation of above-mentioned embodiment shown below is exactly the example in the various forms that can take of the movable tool of hair cutter of the present invention.
Between the top sliding surface 52 of the unit blade 41 of movable tool 40 and the sliding surface 35 of the unit blade 31 of fixed cutting tool 30, whether form gap S, be optional item.
Adopt the unit blade 41 of the movable tool 40 of variation, make contacting with each other by a part for zone line 60 side and the unit blade 31 of fixed cutting tool 30 in apex zone 50.Such as, the top sliding surface 52 of apex zone 50 to go from the mid portion of apex zone 50 towards tip side the sliding surface 35 of self-retaining cutter 30 away from mode tilt.
Adopt the unit blade 41 of the movable tool 40 of variation, apex zone 50 is not contacted with the unit blade 31 of fixed cutting tool 30 with the part by apex zone 50 side in zone line 60.Such as, the top sliding surface 52 of apex zone 50 and the middle slip face 62 of zone line 60 with from zone line 60 by apex zone 50 side towards the tip side of apex zone 50 go and the sliding surface 35 of self-retaining cutter 30 away from mode tilt.
Whether the length of root area 70 on the length direction of unit blade 41 is the over half of the total length of unit blade 41, is optional item.Such as, the length of the length of the apex zone 50 of unit blade 41, the length of zone line 60 and root area 70 is identical length respectively.
Whether the middle rake face 61 of zone line 60 is curved surface, is optional item.Such as, the middle rake face 61 being formed at zone line 60 is inclined planes.
Adopt the unit blade 41 of the movable tool 40 of variation, the blade width of zone line 60 goes towards root area 70 side from apex zone 50 side and narrows gradually.In this case, hair easily concentrates on the junction section of zone line 60 and root area 70.
A part for the cutting edge angle of the apex zone 50 of variation is less than a part for the cutting edge angle of zone line 60 and the cutting edge angle of root area 70.
A part for the cutting edge angle of the root area 70 of variation is larger than a part for the cutting edge angle of zone line 60.
The whole of cutting edge angle of the apex zone 50 of variation are formed as identical angle or different angles.
A part for the cutting edge angle of the zone line 60 of variation is formed as identical angle.
Part or all of the cutting edge angle of the root area 70 of variation is formed as different angles.
Adopt the unit blade 41 of the movable tool 40 of variation, the junction section of the top rake face 51 of apex zone 50 and the end face 47 of unit blade 41 and top end face 48 is formed as R chamfer machining.Its result, even if this part contacts with the part at object position, is also difficult to apply to stimulate to the part at object position.
Claims (8)
1. a movable tool for hair cutter, is characterized in that, has:
Movable tool, it has multiple units blade,
In described movable tool, the length direction arrangement along described unit blade is formed with cutting edge angle apex zone different from each other, zone line and root area,
Described apex zone is formed at the tip side of described unit blade, compares with described root area with described zone line, has the cutting edge angle being difficult to apply to object position to stimulate,
Described root area is formed at the root side of described unit blade, compares with described zone line with described apex zone, has when cutting off hair and cuts off the less cutting edge angle of resistance,
Between the described apex zone that described zone line is formed at described unit blade and described root area, for described zone line, set its cutting edge angle from described apex zone to the mode that described root area changes smoothly to make cutting edge angle.
2. the movable tool of hair cutter according to claim 1, wherein
The cutting edge angle of the entirety of described apex zone than the cutting edge angle of described zone line and the cutting edge angle of described root area large.
3. the movable tool of hair cutter according to claim 1, wherein
The blade width of described zone line goes towards the mid portion of described zone line from described apex zone side and narrows gradually, goes and broaden gradually from described mid portion towards described root area side.
4. the movable tool of hair cutter according to claim 1, wherein
The rake face being formed at described zone line is curved surface.
5. the movable tool of hair cutter according to claim 1, wherein
The length of described root area on the length direction of described unit blade is the over half of the total length of described unit blade.
6. a head unit for hair cutter, is characterized in that, has:
There is the fixed cutting tool of multiple units blade; And
The movable tool of the hair cutter described in that move back and forth relative to described fixed cutting tool, in Claims 1 to 5 any one.
7. the head unit of hair cutter according to claim 6, wherein
In described apex zone, described movable tool have go towards top and leave gradually from described fixed cutting tool, with the facing opposite face of described fixed cutting tool.
8. a hair cutter, is characterized in that, has:
Head unit described in claim 6 or 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014073423A JP6120097B2 (en) | 2014-03-31 | 2014-03-31 | Hair clipper, its head unit, and its movable blade |
| JP2014-073423 | 2014-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104942839A true CN104942839A (en) | 2015-09-30 |
| CN104942839B CN104942839B (en) | 2017-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510036562.6A Active CN104942839B (en) | 2014-03-31 | 2015-01-23 | The movable tool of hair cutter, the head unit of hair cutter and hair cutter |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2926959B1 (en) |
| JP (1) | JP6120097B2 (en) |
| CN (1) | CN104942839B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382852B (en) * | 2017-08-14 | 2021-04-09 | 易耀实业有限公司 | Cutter and hair trimmer of sandwich type structure |
| CN108908415A (en) * | 2018-09-26 | 2018-11-30 | 浙江海顺电工有限公司 | Bilateral abnormity haircut blade and hair cutter |
| JP2023083838A (en) * | 2021-12-06 | 2023-06-16 | パナソニックＩｐマネジメント株式会社 | Blade of hair clipper and hair clipper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171322A (en) * | 1996-07-17 | 1998-01-28 | 瓦尔·克里帕公司 | Cutter blade for hair clippers |
| JPH1157244A (en) * | 1997-08-26 | 1999-03-02 | Matsushita Electric Works Ltd | Blade having sliding surface and its manufacture |
| JP2003181164A (en) * | 2001-12-14 | 2003-07-02 | Matsushita Electric Works Ltd | Hair clipper blade |
| CN1451513A (en) * | 2002-04-19 | 2003-10-29 | 松下电工股份有限公司 | Method for making edge of hairdressing shears |
| JP2008080111A (en) * | 2006-08-31 | 2008-04-10 | Matsushita Electric Works Ltd | Hair clipper |
| US20080209741A1 (en) * | 2007-03-02 | 2008-09-04 | Chin-Chuan Chen | Blade structure of an electric hair trimmer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1458326A (en) * | 1921-05-02 | 1923-06-12 | Clyde O Connor | Hair-clipper blade |
| GB265347A (en) * | 1925-12-15 | 1927-02-10 | Chicago Flexible Shaft Co | Improved shear plates for sheep shears and like implements |
| KR100900123B1 (en) * | 2006-08-31 | 2009-06-01 | 파나소닉 전공 주식회사 | Hair clipper |
| JP2010004992A (en) * | 2008-06-25 | 2010-01-14 | Panasonic Electric Works Co Ltd | Hair clipper blade and electric hair clippers |
-
2014
- 2014-03-31 JP JP2014073423A patent/JP6120097B2/en active Active
-
2015
- 2015-01-23 CN CN201510036562.6A patent/CN104942839B/en active Active
- 2015-01-26 EP EP15152447.7A patent/EP2926959B1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171322A (en) * | 1996-07-17 | 1998-01-28 | 瓦尔·克里帕公司 | Cutter blade for hair clippers |
| JPH1157244A (en) * | 1997-08-26 | 1999-03-02 | Matsushita Electric Works Ltd | Blade having sliding surface and its manufacture |
| JP2003181164A (en) * | 2001-12-14 | 2003-07-02 | Matsushita Electric Works Ltd | Hair clipper blade |
| CN1451513A (en) * | 2002-04-19 | 2003-10-29 | 松下电工股份有限公司 | Method for making edge of hairdressing shears |
| JP2008080111A (en) * | 2006-08-31 | 2008-04-10 | Matsushita Electric Works Ltd | Hair clipper |
| US20080209741A1 (en) * | 2007-03-02 | 2008-09-04 | Chin-Chuan Chen | Blade structure of an electric hair trimmer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6120097B2 (en) | 2017-04-26 |
| CN104942839B (en) | 2017-07-21 |
| EP2926959A1 (en) | 2015-10-07 |
| EP2926959B1 (en) | 2017-10-25 |
| JP2015192833A (en) | 2015-11-05 |
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