CN201295934Y

CN201295934Y - Rotary electric shaver

Info

Publication number: CN201295934Y
Application number: CNU2008201686812U
Authority: CN
Inventors: 应平祥
Original assignee: CHAOREN GROUP CORP Ltd
Current assignee: CHAOREN GROUP CORP Ltd
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-08-26
Anticipated expiration: 2018-11-25

Abstract

The utility model discloses a rotary electric shaver. The inner knife in the prior art has less knife edges or low precision and high material cost, therefore, the utility model provides the rotary electric shaver, the outer knife of the rotary electric shaver is provided with at least two concentric circular orbits, and a knife tool of the inner knife is a single component, and the knife tool as the single component is distributed at intervals with at least two blades with knife edges of different types, the amount of each type of blades is at least two, and the knife edges of the blades are distributed on concentric circles corresponding to the circular orbits one to one so that the knife edges respectively contact with the surfaces of the corresponding circular orbits in a sliding way when the inner knife rotates. Through adding the amount of the knife edges, the outer knife can contact with the inner knife more and more in a preset time, therefore, the cutting effect can be improved, and the arrangement density of the knife edges of the inner knife is more even, thereby the friction generated when the outer knife and the inner knife slide face to face can be well adjusted, and the power and the temperature formed therefor can reach more reasonable requirement.

Description

Rotary electric shaver

Technical field

The utility model relates to a kind of rotary electric shaver, this rotary electric shaver comprises outer cutter roughly in the form of annular discs and interior cutter, outer cutter has at least two annular concentric tracks, the cutter of interior cutter is a solid memder, be intervally distributed with at least two kinds of blades on the cutter of this solid memder with multi-form blade, every kind of blade is at least two, the blade of at least two kinds of blades be distributed in described at least two circular orbits one to one on the concentric circumferences with these blades when the interior cutter rotation respectively with corresponding circular orbit surface sliding-contact.

Background technology

Typical rotary electric shaver comprises and is the outer cutter that forms a plurality of hairs inlets on discoidal, the top surface, and this outer cutter has circular orbit in the surface within it, also comprises and interior cutter, this outer cutter and the interior cutter formation diced system of circular orbit sliding-contact.From existing disclosed technology is interior cutter can being well understood to the application for a patent for invention prospectus of CN1626321A as publication number.This known interior cutter is the circular knife ring that is made of boss and a lot of identical Y shape cutters.The advantage of cutter was that material is economized, manufacturing process is simple, cost is low in this was known; The shortcoming of cutter was that the number of blade is less, influences cutting effect because Y shape cutter exists certain width and the restriction that is subjected to Available Material in the original blank in this was known.

Having the structure that public technology adopts now equally, for example publication number is that the disclosed interior cutter of application for a patent for invention prospectus of CN101048264A is that different circular cutters is placed on the different knives racks, by welding different knives racks is connected in an integral body.The advantage of this known cutter is because the cutter width is narrow, can increase the quantity of blade, to improve the hair cutting effect; The shortcoming of this known cutter is because the circular knife ring is placed on the different knives racks, by being welded into an integral body, causes precision not high, the material cost height, and labour and cost in man-hour are big.

The utility model content

The technical assignment of the technical problems to be solved in the utility model and proposition be overcome that prior art exists otherwise the number of blade less, or cause the defective that precision is not high, material cost is high, a kind of rotary electric shaver is provided.For this reason, the utility model adopts following technical proposals:

Rotary electric shaver, it comprises fuselage and at least two shaver groups that are placed on the fuselage, each shaver group all has a roughly discoidal outer cutter and the interior cutter that can be driven external mutually cutter rotation,

Described outer cutter has a plurality of hair inlets on its top surface,

Cutter comprises a pedestal of being made by synthetic resin and is assembled in cutter on this pedestal in described, have on the described pedestal boss with fuselage on the rotating shaft transmission be driven externally cutter rotation mutually in conjunction with cutter in realizing,

It is characterized in that: described outer cutter has at least two annular concentric tracks that offer described hair inlet, described cutter is a solid memder, be intervally distributed with at least two kinds of blades on the cutter of this solid memder with multi-form blade, every kind of blade is at least two, the blade of described at least two kinds of blades be distributed in described at least two circular orbits one to one on the concentric circumferences with these blades when the interior cutter rotation respectively with corresponding circular orbit surface sliding-contact.

The beneficial effects of the utility model are:

1, owing on the cutter of solid memder, is intervally distributed with at least two kinds of blades with multi-form blade, can be under the prerequisite of the limited Available Material of cutter raw material (blank), increase the quantity of blade, allow outer cutter can contact more number of times with the cutter of interior cutter at the appointed time, can increase cutting effect.

2, owing to adopt multi-form blade, can be according to the blade of the size configure different proportion of the circular orbit of outer cutter, the blade number of cutter is complementary with the size of outer cutter circular orbit in making, cutter blade arranging density is more even in making, thereby better frictional force when adjusting outer cutter and the slip of interior cutter veneer, and reach more reasonable request with this formed power and temperature.

Description of drawings

Fig. 1 removes the stereogram of part for a kind of rotary electric shaver.

Fig. 2 is an interior cutter cross-sectional schematic of the present utility model.

Fig. 3 is the structural representation of a kind of interior cutter that is made of the cutter with double-edged blade and single dege blade and pedestal of the present utility model.

Fig. 4 is the structural representation of the another kind of interior cutter that is made of the cutter with double-edged blade and single dege blade and pedestal of the present utility model.

Fig. 5 is the structural representation of a kind of interior cutter that is made of the cutter with 3-edge surgical knife sheet, double-edged blade and single dege blade and pedestal of the present utility model.

Among the figure: 1-rotary electric shaver, 2-fuselage, 3-shaver group, the outer cutter of 4-, cutter in the 5/51/52/53-, 6-hair inlet, the 7-pedestal, the 8-cutter, 9-boss, 10-rotating shaft, the 11-circular orbit, 12-3-edge surgical knife sheet, 13-double-edged blade, 14-cantilever, 15-first single dege blade, 16-second single dege blade, 17-backing plate, 18-lead, the 19-pilot hole, the 20-blade, α-with the radial rake of the blade of exterior annular raceway surface sliding-contact, β-with the radial rake of the blade of interior annular raceway surface sliding-contact.

The specific embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is described further.

As shown in Figure 1, this rotary electric shaver 1 comprises fuselage 2 and is placed in two shaver groups 3 on the fuselage 2 (according to the design of actual product, can also be three shaver groups or more), each shaver group 3 all has a roughly discoidal outer cutter 4 can be driven mutually the externally interior cutter 5 of cutter 4 rotations with one, outer cutter 4 has a plurality of hair inlets 6 on its top surface, interior cutter 5 comprises a pedestal 7 of being made by synthetic resin (POM and PA nylon are the ideal materials of making pedestal) and is assembled in cutter 8 on this pedestal 7, have a boss 9 on the pedestal 7 and form transmission mechanism to combine with rotating shaft 10 transmissions on the fuselage 2, to pass to interior cutter from the rotary power of motor in the fuselage 2 thus, make relative rotation of circular orbit of cutter 8 with the outer cutter 4 of interior cutter 5, veneer slides and forms diced system, and hair inlet 6 hairs that enter from outer cutter 4 top surfaces are cut.

More detailed, referring to Fig. 2, outer cutter 4 has at least two annular concentric tracks 11 that offer described hair inlet 6, the cutter 8 of interior cutter 5 is a solid memder, be intervally distributed with at least two kinds of blades on the cutter 8 of this solid memder with multi-form blade, every kind of blade is at least two, the blade 20 of these at least two kinds of blades be distributed in described at least two circular orbits 11 one to one on the concentric circumferences with these blades when the interior cutter rotation respectively with corresponding circular orbit surface sliding-contact.

As a kind of easy implementation, described at least two kinds of blades with multi-form blade are at least two kinds of blades with different number blades, they can be 3-edge surgical knife sheet 12, double-edged blade 13, the combination of any two kinds of blades in the middle of three kinds of blades of single dege blade or the combination of three kinds of blades, in view of the above, combining of 3-edge surgical knife sheet 12 and double-edged blade 13 can be arranged, 3-edge surgical knife sheet 12 combines with single dege blade, double-edged blade 13 and single dege blade combine and 3-edge surgical knife sheet 12 and double-edged blade 13 and three kinds of blade ground knots of single dege blade amount to four kinds of combinations, and when concrete every kind of blade itself has different version, on the basis of these four kinds of combinations, can have more some combinations again, as single dege blade can be that its blade shown in Figure 4 is positioned at the first inboard single dege blade 15 with respect to its cantilever, also can be Fig. 3, its blade shown in 5 is positioned at second single dege blade 16 in the outside with respect to its cantilever; And the blade with blade of maximum blade numbers be distributed in the same number of concentric circumferences of its blade on, blade with blade of less blade number is distributed in the concentric circumferences at blade place of the blade with maximum blade numbers with this to have on the same number of any concentric circumferences of blade of blade of less blade number, and described outer cutter has and the same number of annular concentric track of blade with blade of maximum blade numbers.

Illustrate: serve as reasons as shown in Figure 3 cutter with double-edged blade and second single dege blade 16 and pedestal constitute a kind of in the structure of cutter 51, concrete, the double-edged blade 13 that constitutes this structure is letter " U " shape, this moment, the blade of double-edged blade 13 was maximum, it is two, therefore the blade of this double-edged blade 13 is distributed on two concentric circumferences, and the blade of second single dege blade 16 is distributed on the circumference in the outside in two concentric circumferences at blade place of double-edged blade 13, therefore can under the prerequisite of the limited Available Material of cutter raw material (blank), increase the quantity of blade, allow outer cutter can contact more number of times with the cutter of interior cutter at the appointed time when rotating speed is identical, can increase cutting effect; And outer cutter 4 has the annular concentric track of two correspondences, therefore when should in cutter and outside cutter when forming a shaver group, the size reasonable of the blade number of cutter and outer cutter circular orbit is mated in making, cutter blade arranging density is more even in making, thereby better frictional force when adjusting outer cutter and the slip of interior cutter veneer, and reach more reasonable request with this formed power and temperature.

Serve as reasons the as shown in Figure 4 structure of cutter 52 in another kind of that cutter with double-edged blade 13 and first single dege blade 15 and pedestal constitute, concrete, this structure only is that with the difference of structure shown in Figure 3 the version of first single dege blade 15 is different with distributing position: the blade of second single dege blade 16 shown in Figure 3 is positioned at the outside with respect to its cantilever, and the blade of this second single dege blade 16 is distributed on the circumference in the outside in two concentric circumferences at blade place of double-edged blade 13, the blade of first single dege blade 15 that this is shown in Figure 4 is positioned at the inboard with respect to its cantilever, and the blade of this first single dege blade 15 is distributed on inboard in two concentric circumferences at blade place of double-edged blade 16 circumference.

Serve as reasons as shown in Figure 5 have 3-edge surgical knife sheet 12, the cutter of double-edged blade 13 and second single dege blade 16 and pedestal constitute a kind of in the structure of cutter 53, concrete, this 3-edge surgical knife sheet 12 be symbol "

" shape; this double-edged blade 13 is letter " U " shape; this moment, 3-edge surgical knife sheet 12 blade was maximum; be three; so the blade of this 3-edge surgical knife sheet 12 is distributed on three concentric circumferences; and the blade of second single dege blade 16 is distributed in three concentric circumferences at blade place of 3-edge surgical knife sheet 12 on the outermost circumference, and the blade of double-edged blade 13 is distributed on two circumference in the outside in three concentric circumferences at blade place of 3-edge surgical knife sheet 12, and outer cutter has the annular concentric track of three correspondences.

The structure of cutter in shown in this Fig. 4,5, its effect is same as shown in Figure 3, and purport designs according to concrete selection of product form in the specific implementation.And more example also is being obvious based on the structure shown in this Fig. 3,4,5, in actual fabrication processing is described during cutter, can also make up above-mentioned multi-form blade rightly, can change the quantity of cutter easily according to the original blank that uses on the permutation and combination optimization criteria, to reach more rational effect, will not give unnecessary details one by one at this.And described 3-edge surgical knife sheet, double-edged blade, single dege blade are also looked concrete situation and are carried out neat, orderly arrangement, press perhaps that different proportion is staggered to be arranged in order, perhaps arrange in order by same ratio is staggered, or the like.

In addition, the blade of the 3-edge surgical knife sheet of addressing in the preamble, double-edged blade, single dege blade lays respectively at corresponding from stretch out cantilever 14 terminal of (stretch out and mean the central axis that leaves cutter) and be integral with corresponding cantilever shape of boss 9, to bear the pressure from outer cutter.

Cutter 8 is processed by the mode of stamping-out or spinning; Each blade of cutter can process with modes such as grinding, galvano-cautery or laser cutting, guarantees the sharpness of the cutter edge of a knife.

And the backing plate 17 that is positioned at cutter 8 downsides and contacts with cutter 8 is installed in order to support cutter 8 on pedestal 7, stop the undue distortion of cutter and cause the poor effect that shaves.Therefore, when cutter under the enough big prerequisite of rigidity and intensity, backing plate can be removed.

The interior cutter of above addressing, be the cutting effect of cutter in realizing better with outer cutter, the radial rake of each blade can be made different angles, best is with the radial rake α of the blade of exterior annular raceway surface sliding-contact less than with the radial tilt angle beta of the blade of interior annular raceway surface sliding-contact, promptly near more with the centre distance of interior cutter, angle is big more, the differential seat angle of two radial rakes is 0 °～10 °, and the angle of maximum radial rake is less than 75 °, reasonably bear and decompose when shaving with this, make the effect that shaves reach best from the pressure of outer cutter.

Outer cutter 4 has downward lead 18, pedestal 7 is provided with pilot hole 19, lead 18 extend in the pilot hole 19 and with these pilot hole 19 matched in clearance, the precision that the cutter of cutter cooperates with the circular orbit of outer cutter in guaranteeing, guaranteed the concentricity of interior cutter and outer cutter simultaneously, and the cutter of cutter keeps suitable engagement force with outer cutter circular orbit in guaranteeing.

In addition, backing plate, cutter are assembled on the pedestal as mold insert when making pedestal, simultaneously correspondingly make boss or recessed poor at backing plate, cutter endoporus, to prevent that backing plate, cutter and pedestal are relative to rotating or moving.

Claims

1, rotary electric shaver (1), it comprises fuselage (2) and is placed at least two shaver groups (3) on the fuselage (2), each shaver group (3) all has a roughly discoidal outer cutter (4) can be driven the relative interior cutter (5,51,52,53) that is somebody's turn to do outer cutter (4) rotation with one

Described outer cutter (4) has a plurality of hair inlets (6) on its top surface,

Cutter (5,51,52,53) comprises a pedestal of being made by synthetic resin (7) and is assembled in cutter (8) on this pedestal (7) in described, have on the described pedestal (7) boss (9) with fuselage (2) on rotating shaft (10) transmission be driven externally cutter rotation mutually in conjunction with cutter in realizing

It is characterized in that: described outer cutter (4) has at least two annular concentric tracks (11) that offer described hair inlet (6), described cutter (8) is a solid memder, be intervally distributed with at least two kinds of blades on the cutter of this solid memder (8) with multi-form blade, every kind of blade is at least two, the blade of described at least two kinds of blades (20) be distributed in described at least two circular orbits (11) one to one on the concentric circumferences with these blades when the interior cutter rotation respectively with corresponding circular orbit surface sliding-contact.

2, rotary electric shaver according to claim 1 is characterized in that described at least two kinds of blades with multi-form blade are at least two kinds of blades with different number blades.

3, rotary electric shaver according to claim 2 is characterized in that:

Described at least two kinds of blades with different number blades are the combination of any two kinds of blades in the middle of 3-edge surgical knife sheet (12), double-edged blade (13), three kinds of blades of single dege blade or the combination of three kinds of blades,

Blade with blade of maximum blade numbers be distributed in the same number of concentric circumferences of its blade on,

Blade with blade of less blade number is distributed in the concentric circumferences at blade place of the blade with maximum blade numbers with this to have on the same number of any concentric circumferences of blade of blade of less blade number,

Described outer cutter (4) has and the same number of annular concentric track of blade with blade of maximum blade numbers.

4, rotary electric shaver according to claim 3, the blade that it is characterized in that described 3-edge surgical knife sheet (12), double-edged blade (13), single dege blade lay respectively at the terminal of corresponding cantilever (14) and are integral with corresponding cantilever shape.

5, according to claim 3 or 4 described rotary electric shavers, it is characterized in that described 3-edge surgical knife sheet (12) be symbol "

" shape.

6,, it is characterized in that described double-edged blade (13) is letter " U " shape according to claim 3 or 4 described rotary electric shavers.

7, rotary electric shaver according to claim 4 is characterized in that described single dege blade comprises first single dege blade (15) and second single dege blade (16): described first single dege blade (15), and its blade is positioned at the inboard with respect to its cantilever; Described second single dege blade (16), its blade is positioned at the outside with respect to its cantilever.

8, rotary electric shaver according to claim 1 is characterized in that being equipped with on the described pedestal (7) backing plate (17) that is positioned at described cutter (8) downside and contacts with described cutter (8).

9, rotary electric shaver according to claim 1, it is characterized in that with the radial rake (α) of the blade of exterior annular raceway surface sliding-contact less than with the radial rake (β) of the blade of interior annular raceway surface sliding-contact, the differential seat angle of two radial rakes is 0 °～10 °, and the angle of maximum radial rake is less than 75 °.

10, rotary electric shaver according to claim 1, it is characterized in that described outer cutter (4) has downward lead (18), described pedestal (7) is provided with pilot hole (19), described lead (18) extend in the described pilot hole (19) and with this pilot hole (19) matched in clearance.