CN1269621C

CN1269621C - Disposable cutting head for clippers

Info

Publication number: CN1269621C
Application number: CN 99815171
Authority: CN
Inventors: 金劳比
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-29
Filing date: 1999-12-15
Publication date: 2006-08-16
Anticipated expiration: 2019-12-15
Also published as: DE69935930T2; EP1140438A4; CN1334763A; DE69935930D1; AU2185300A; JP2003535614A; EP1140438A1; AU765077B2; WO2000038889A1; EP1140438B1

Abstract

The disposable cutting head 1 is a four element clip together assembly with a base 2, lower 9 and upper 15 cutting blades, and a spring 23. The base 2 serves as the support for the entire assembly 1 and incorporates the attachment elements 7 for retention of the clipper. The spring 23 holds the elements together, forces the cutting blades 9, 15 together and includes the runner 28 under which the upper blade slides. The entire assembly is such that the head assembly with blades is of the disposable type, but uses metal blades. If desired the blades alone may be disposed and the head assembly reused; however, the structure is not intended for long wear and use. Use with clipper comb elements is also accommodated.

Description

The disposable cutting head that is used for hairclipper

Technical field

The present invention relates to be used to prune or cut the device of people's hair and animal hair etc.This new device provides the disposable cutting head of band blade, and it can simplify maintenance to sharp relatively cutting appliance in the mode of economy.

Background technology

Use now the various devices of sending out with cropping that are used to push away, cut are arranged.Known prevailing this class device is clippers (clippers) or the more modern hairclipper by the motor promotion.Originally the hairclipper of conceiving and developing has blade, blade is taken off from the hairclipper head earlier sharpen to keep the cutting performance of trimming system again.This blade can be to be installed on the hairclipper head with screw etc., or is installed on the hairclipper with clip, pliers or other keeper.

Modern hairclipper has been combined with the head with changeable blade, and this blade is always not sharp, but can unload and load onto.The U.S. Patent number 2 722 742 that announce November 8 nineteen fifty-five is examples of this class device.In addition, disposable hairclipper assembly head is designed so that the form that the time spent combines with hairclipper.The U.S. Patent number of announcing on January 14th, 1,986 4 563 814 discloses the example of the various disposable plastic assembly heads that are used for hairclipper.

Summary of the invention

An object of the present invention is the hairclipper cutting head is improved, reduce friction and improve the heat radiation of cutting head and blade combination so that can carry out assembly to disposable hairclipper cutting head.

Another purpose be reduce cutting use in cutting head and/or blade crooked, to reduce between cutting blade because of catching the hair promotion that hair causes rather than turning down hair.

Another purpose is that disposable head and insert design are to use with the existing folder that has on the comb.

Another purpose is the cutting head that is applicable to spring locking carding element.

Also having a purpose is that top cutting blade holder structure can reduce the wearing and tearing that hairclipper promotes lug.This promotes normally plastic material of lug, back and forth promotes between operational period and the assembly of upper blade seat at hairclipper.

Also having a purpose again is to reduce in the hairclipper cavity shell of accepting cutting head to enter hair and hair amount during cutting operation.

Another purpose is to be combined with the size variation of jut with the hairclipper blade jack that is adapted to put into device in the substrate again.

The invention provides a kind of improvement structure that has the hairclipper assembly head of disposable blade.Whole assembly is a kind of disposable band blade assembly head, and what use is metal blade, and only blade is disposable and the assembly head can be used again if desired, but this structure is unsuitable for long term wear and use.This head and blade structure pulling down/once can encounter problems in head and the blade, as the delay in head and blade hot with the hair of catching and promoting, reduced.

Substrate of the present invention supports that the edge is not have to determine structure, similar comb tooth, the comb tooth of catching and promoting hair is positioned under any part of cutting knife, as the U.S. Patent number of announcing May 11 nineteen eighty-two 4 328 616, the comb tooth is positioned under the cutting blade tooth, and two tooth spares do not contact hair just can catch and promote hair.Two additional cuts blades of the present invention are nearly concave surfaces, one relative another along whole blade lengthwise, be convenient to that blade curls and produce when separating, blade curls and divides defection to catch and promote hair, can bring other problem simultaneously.The U.S. Patent number 4 765 060 that on August 23rd, 1988 announced discloses a kind of blade end bend, and this bend can cause separation problem, and the result lacks continuous concave surface along the longitudinal axis.

Cutting blade of the present invention has the sawtooth portion that reduces to generate heat in the tooth body, and for the tooth body provides structural strength, but, for example, in wool hairclipper blade, just needn't make this opening in order to provide elasticity in tooth edge wall, to make this opening.This class opening can lose lubricant, also can be a point catching and promote hair.Generally speaking, the new construction that provides preferably can improve cutting efficiency and reduce by the heat transmission of plant for pruning.Disposable system has successfully improved cutting efficiency, and has used and have the structure of combing bite on device.

The present invention proposes a kind of disposable cutting head that uses with hairclipper, comprise: a matrix, has an installation portion that has upright center bridge, device with the removable mutual locking mesh of hairclipper, and the lower blade support sector before this installation portion, this lower blade support sector has the post in a plurality of recesses that extending along this lower blade support sector lengthwise; A bottom cutting blade, having a plurality of bottoms tooth and one on its leading edge makes this bottom cutting blade assembly advance recess in this lower blade support sector, wherein the recess of this bottom cutting blade has a plurality of holes that are used to accept described post, and this bottom tooth is made has a plurality of zigzag; A top cutting blade has a plurality of tops tooth and a recess on its leading edge, the recess of this top cutting blade comprises a groove that is extending formation along this top cutting blade lengthwise, and the top cutting blade also comprises the device that is promoted engagement by hairclipper; When in the assembly during this disposable cutting head, this top cutting blade is positioned at the opposite of this bottom cutting blade and is pasting this bottom cutting blade, its middle and upper part cutting blade and bottom cutting blade be along being parallel to the upper and lower part tooth, lengthwise separately be relative concavity each other; A spring is installed on the matrix and has one by an installation elements and slides part in this groove of this top cutting blade, makes the top cutting blade relatively and be close to that the longitudinal sliding motion mode is supported in the assembling of this bottom cutting blade; Wherein the device of this removable interlocking engagement is that this upright center bridge has installation cavity and a pair of installation lug.

This top tooth is made has a plurality of sawtooth bodies.

Have a plurality of shafts of rib in the recess of this bottom cutting blade.

The promotion geared assembly of this top cutting blade is a trailing edge that has big recess on the cutting blade of top, and this big recess is on two edges of formed a pair of pedestal.

Each pedestal with hairclipper ear shape impeller contact surface on a circular edge is arranged.

This bottom cutting blade and this top cutting blade be this bottom tooth of formation and this uneven edge of top tooth in manufacture process, to carry out orientation with the direction of opposite bottom cutting blade and top cutting blade when the assembly.

Lower blade support sector supports the leading edge place not give prominence under the tooth of bottom at it.

The installation elements that is used for spring comprises: this matrix band pair of holes, this spring has pair of holes and has a pair of screw in the bottom of this relative arm on the top of its a pair of relative arm, and pair of screws is screwed into screw through the bottom of relative arm and matrix respectively and is installed in the screw.

This installation elements that is used for spring comprises: this matrix a pair of erection column at its downside band, and this spring has pair of holes in the bottom of a pair of relative arm, and wherein erection column passes this hole.

Matrix trailing edge place has round angle.

Have and be installed to the guide plate that spring position is sentenced part covering hairclipper cavity.

Has a louvre in this top cutting blade.

Has a fixing hole in this top cutting blade.

This matrix has a pair of installation lug, and each is installed on the lug all jut.

Substrate has the mounting groove with a plurality of projections.

This matrix has the plate that slidably meshes with its bottom, and this plate has the extension that extend at the matrix rear; Be inserted with a spring in the cavity that forms on the matrix; This plate has the spring joint sheet with the spring engagement; And be used for the power of antagonistic spring and push the device of this plate.

Pressurizing unit is a promotion lug that is installed on this plate.

Push this promotion lug with an instrument.

Slidably Nie He plate has sliding eye and passes sliding eye this plate is fixed to rivet on the matrix.

The present invention proposes a kind of comb that is installed on the hairclipper cutting head, has: a matrix support sector, have a plurality of comb teeth that are installed in matrix leading edge place, and the comb toilet article have a notch with the leading edge engagement of a plurality of tops tooth of a cutting head; A spring clip is combed the back basicosta place that tooth is installed in matrix support sector relatively.

The present invention proposes a kind of comb that is installed on the hairclipper cutting head, has: a matrix support sector, have the comb teeth at basicosta place before a plurality of being installed in, and the comb toilet article have a notch with the leading edge engagement of a plurality of tops tooth of a cutting head; Plate after one is combed the back basicosta place that tooth is installed in matrix support sector relatively, and this back plate is installed between two installation side spares and has the slit that is used for cutting head engagement.

The present invention proposes a kind ofly to make a top cutting blade and the device that the bottom cutting blade is installed with spring, and comprising: a matrix has the department of assembly with vertical bridge; Lower blade support sector before this department of assembly has a support leading edge under a plurality of lower teeth that do not extend in the cutting blade of bottom; With a device with the removable interlocking engagement of hairclipper.

The device of this removable interlocking engagement is that this vertical bridge has installation cavity and a pair of installation lug.Each is installed lug and has a jut in the surface within it.Have a plurality of juts in the installation cavity.

The present invention proposes a kind of heat abstractor that is used for the hairclipper cutting head, comprises that one is formed with a plurality of cutting teeth on it, cutting blade, wherein cut and form the sawtooth body in the tooth.

The present invention proposes a kind of radiator structure that is used for the hairclipper cutting head, comprises the top cutting head that wherein has louvre.

In conjunction with description described herein, will clear and definite other purpose of the present invention with reference to explanation and accompanying drawing.

Description of drawings

Fig. 1 represents an assembly perspective view of hairclipper profile and band blade;

Fig. 2 represents the perspective view that blade and assembly head decompose;

Fig. 3 represents the perspective view that blade and assembly head can select embodiment to decompose;

Fig. 3 A represents to have the perspective view that the assembly head of guide plate can select embodiment to decompose;

Fig. 4 represents the bottom diagrammatic sketch of top cutting blade;

Fig. 4 A represents that the top cutting blade can select the bottom diagrammatic sketch of embodiment;

Fig. 5 represents the edge graph of facing of top cutting blade;

Fig. 5 A represents that the top cutting blade can select embodiment to face edge graph;

Fig. 6 represents the top view of top cutting blade;

Fig. 6 A represents to have the top cutting blade top view of a projection;

Fig. 7 represents along the side view of top cutting blade line 6-6 section;

Fig. 8 represents the bottom diagrammatic sketch of bottom cutting blade;

Fig. 9 represents the edge graph of facing of bottom cutting blade;

Figure 10 represents the top view of bottom cutting blade;

Figure 11 represents along the side view of bottom cutting blade line 10-10 section;

Figure 12 represents an assembly side cutaway view of band blade;

Figure 12 A represents band blade and the assembly side cutaway view that the guide plate spring is housed;

Figure 13 represents to be equipped with the lens perspective view of molar comb exterior feature and band blade head;

Figure 14 represents to have an assembly perspective view of variable tooth comb being put into the blade of device;

Figure 15 represents to have and can install to the assembly perspective view that can select tooth comb to put into the blade of device;

Figure 16 represents to be used to comb the decomposition diagram that cutting assembly head that part installs can be selected embodiment;

The assembly head that Figure 17 represents to have blade and is installed in the device medi-spring can be selected the side cutaway view of embodiment;

Figure 18 represents to have the bottom diagrammatic sketch of the cutting head selected of putting into the device spring;

Figure 19 represents to use the instrument perspective view that has threading device spring;

The specific embodiment

Disposable cutting head is four assemblies that are made of together matrix, bottom cutting blade, top cutting blade and spring assembly basically.Matrix be used to support whole lens and in conjunction with installation elements to remain on hairclipper.Each element of spring handle is fixed together and makes cutting blade together, and is included in the part that slides that slides under the cutter.The installed part that also can comprise carding element.In alternate embodiments, stated to spring and used screw retaining members and use snak link that carding element is kept.The plastic comb that is used for using with the snak link keeper combines.Guide plate appended to suppress on the spring structure in the cavity that hair enters hairclipper.

With reference to accompanying drawing 1-15, disposable cutting head 1 has the matrix 2 with back installation portion 3 and lower blade support sector 4, and back installation portion 3 has the upright center bridge 5 of lug 7 being installed with hairclipper 6.Lower blade support sector 4 has the post 8 that keeps bottom cutting blade 9.As Figure 12, the support leading edge 37 of lower blade support sector 4 does not extend to projection under bottom cutting blade 9 bottom teeth 13, and this has alleviated cutting head blade support sector during cutting tends to catch and promote hair on support matrices problem.

Bottom cutting blade 9 has the hole 14 that receives this post 8 and is placed in the tool lower blade support sector 4.Post 8 suppresses the horizontal movement of bottom cutting blade 9 relative lower blade support sectors 4, but allows bottom cutting blade 9 to move both vertically.Because of providing, vertical " floating " state when heat causes that blade is crooked or curling, keeps contacting like this with top cutting blade 15.Post 8 and hole 14 are changed blade easily, if want the concave curved surface changing blade and do not flatten this blade, fixedly the time, utilize the permanent installed part in another cutting head to load onto just passable in bearing.

Bottom cutting blade 9 generally has with a planar rectangular along the recess 10 of blade lengthwise degree.In recess 10, form shaft of rib 11 structural strength is provided, and help to reduce heating.Bottom cutting blade 9 also has the sawtooth body 12 or the folding line that form and reduces heating to reduce surperficial sliding friction in bottom tooth 13, and allows ANALYSIS OF COOLANT FLOW and structural strength is provided.

Bottom cutting blade 9 has the hole 14 that receives this post 8 and is placed in the lower blade support sector 4.Top cutting blade 15 is placed on the bottom cutting blade 9 that has the bottom tooth 13 that is parallel to top tooth 16 with sliding relation.At operation middle and upper part cutting blade 15 with respect to fixing bottom cutting blade 9 longitudinal sliding motions.

Top cutting blade 15 generally has with a planar rectangular along the recess 17 of blade lengthwise degree, and as shown in Figure 2, top cutting blade 15 can be made with the stamped operation, forms upwards arc on the side direction.Many tops tooth 16 forms anterior, has the sawtooth body 12 of similar bottom tooth 13.Groove 18 is parallel and be interval in the labial teeth edge.

The trailing edge 19 of top cutting blade 15 contains and is suitable for receiving a big recess 20 that promotes other impeller of lug 21 or hairclipper 6.In big recess 20, be formed with a pair of pedestal 22, to reduce promoting the friction infringement that causes when lug 21 moves back and forth mobile top cutting blade 15 through the reciprocal operation of bottom cutting blade 9 to slide at hairclipper.Pedestal 22 preferably has circular edge 38 to reduce the wearing and tearing that promote lug 21.But, also can use the ear shape seat handle 40 of the suitable bending shown in Fig. 5 A.

Spring 23 generally is a U-shaped spare such as spring steel with a pair of relative arm 24, and this relative arm 24 is suitable for being installed on the back of the body edge 25 of back installation portion 3 of matrix 2.As Figure 12, the relative arm 24 of spring 23 can be fixed on the matrix 2 by arm hole 26 joggle posts 27.Arm 24 begins to be bent upwards from matrix 2 relatively, and outstanding forward on top cutting blade 15 in arciform mode, is horizontal, an elongated part that slides not hold for downward mode, and this slides the groove 18 of part 28 these top cutting blades 15 of engagement.Slide part 28 and preferably have surfaces such as plastic coating, oversleeve to alleviate the slip with groove 18.

Spring 23 also can be fixed on the matrix 2 with screw thread installation method, has replaced post 27 with hole 47 in the example as shown in Figure 3, and arm hole 26 is screws 46 of accepting screw 48.In addition, hole 45 is comprised in the top that allows screw pass through relative arm 24.Screw 48 spirals are advanced spring 23 provides the adjusting tightness by the spring 23 of removable installation element.Therefore, can loosen tightness during the hair of or the pine that looses thin reducing the blade infringement that causes because of friction and heat, and when cutting thick or coarse hair, can increase tightness cutting when cutting.

Spring 23 also can have extension plate or best guide plate 55 shown in Fig. 3 A and 12A, enters in the cavity 41 of hairclipper so that prevent hair or hair in cutting operation.

In most preferred embodiment, bottom cutting blade 9 and top cutting blade 15 are to form with concavity slightly in a plane that is parallel to bottom tooth 13 shown in Fig. 4 and 8, top tooth 16 rows along separately lengthwise each other.This structure is in use inwardly to separate and crooked phenomenon from

terminal

29,30 each other because of sliding friction adstante febre cutting blade part in order to be adapted to.This bending all may take place in making and using.Top cutting blade 15 can also change by general rectangular aperture, and louvre 70 further is set.

Blade

9,15 can be that compacting, cutting and/or punching press make.Produce the uneven edge of blade side, back and have cutter.Implement for this best, uneven matched edges are at apical margin, i.e. edge between blade.Therefore, blade not only is carried out slick and sly processing on matched edges and uneven edge helps to cut hair, and touches subject's skin and can not cause injury.In order in fixed operation, to help to install top cutting blade 15, can provide fixing hole 44.

With reference to Figure 13, disposable cutting head 1 is installed on the molar comb 31, width or lateral approach are installed to standard comb installed part in standard hairclipper head and blade to allow before and after this solid shape and the lens.When the flat relatively comb installed part of one of needs, can contrast the material that typical plastics comb 31 uses metals or other reinforced structure.Figure 14 represents to have an example of the slim comb 32 of combing tooth 33, has notch 34 and spring clip 35, and notch 34 is accepted the leading edge 36 of disposable cutting head 1, the assembling of spring clip 35 trailing edges and this slim comb 32 of maintenance.

A kind of variation that Figure 15-18 expression utilizes spring force to install.In this case, back plate 51 has replaced spring clip 35 and has increased lateral body 65.When slim comb is made by plastics or similar material, can provide the structure of wanting for combing 32.Need the gap if comb 32 is installed, rivet hole 66 can be provided.Back plate 51 has by extension 56 and extends into slit 52 in the plate 53.Plate 53 has spring joint sheet 43, gets spring groove medi-spring 50 engagement with being placed on.The rivet 61 of plate 53 by passing hole 60 and sliding eye 62, screw etc. are installed on the matrix 2.When being pushed in the face of the power of spring 50, plate 53 pushes away the pressure compression spring 50 on the tab 42.This moves extension 56 allows comb 32 move and to be installed on the cutting head 1.Therefore, when fixing like this notch 34 will mesh the leading edge 36 of cutting tooth, and when plate 53 is loosened, extension 56 will be engaged on the slit 52.Shown in Figure 16 and 19, instrument 63 can assist to push away tab 42.Instrument 63 also has blade or the turret head that is used for adjustment screw 48 tightnesses.

Matrix 2 also can have a bigger rounded corners 54, conversion hairclipper when cutting in localized areas such as young animal's necks to help the user.

Matrix 2 also can comprise being positioned at installs the lug 7 inboard juts 58 that reach mounting groove 57 of going up, and jut 58 is compressible.When being installed to cutting head 1 on the hairclipper 6, a tongue body is inserted in the mounting groove 57.The hairclipper tongue body of each hairclipper 6 does not always have identical diameter.Jut 58 provides the various sizes of tongue body to reduce vibration, prevents that other parts assembling is loose.The jut of installing on the lug 7 when cutting head 1 is installed on the hairclipper 6 58 plays a part same.

Though diagram and embodiment specifically show and stated the present invention, the ordinary skill philtrum of this area is appreciated that can be deleted and conversion without departing from the spirit and scope of the present invention in form and details.

Claims

1. disposable cutting head (1) that uses with hairclipper (6) comprising:

A matrix (2), has an installation portion (3) that has upright center bridge (5), device with the removable mutual locking mesh of hairclipper (6), and one in the preceding lower blade support sector (4) of this installation portion (3), and this lower blade support sector (4) has the post (8) in a plurality of recesses that extending along this lower blade support sector lengthwise;

A bottom cutting blade (9), having a plurality of bottoms teeth (13) and one on its leading edge makes this bottom cutting blade (9) assembly advance recess (10) in this lower blade support sector (4), wherein the recess (10) of this bottom cutting blade (9) has a plurality of holes (14) that are used to accept described post (8), and this bottom tooth (13) is made has a plurality of zigzag (2);

A top cutting blade (15), on its leading edge, have a plurality of tops teeth (16) and a recess (17), the recess of this top cutting blade (17) comprises a groove (18) that is extending formation along this top cutting blade (15) lengthwise, and top cutting blade (15) also comprises the device that is promoted engagement by hairclipper (6);

When in the assembly during this disposable cutting head (1), this top cutting blade (15) is positioned at the opposite of this bottom cutting blade (9) and is pasting this bottom cutting blade (9), its middle and upper part cutting blade (15) and bottom cutting blade (16) are relative concavity each other along the lengthwise separately that is parallel to upper and lower part tooth (13,16);

A spring (23), be installed to matrix (2) by an installation elements and go up and have one and slide part (28) in this groove (18) of this top cutting blade (15), make top cutting blade (15) relatively and be close to that the longitudinal sliding motion mode is supported in the assembling of this bottom cutting blade (9);

Wherein the device of this removable interlocking engagement is that this upright center bridge (5) has installation cavity (57) and a pair of installation lug (7).

2. cutting head according to claim 1 is characterized in that, this top tooth (16) is made has a plurality of sawtooth bodies (12).

3. cutting head according to claim 1 is characterized in that, has a plurality of shafts of rib (11) in the recess (10) of this bottom cutting blade (9).

4. cutting head according to claim 1, it is characterized in that, the device of the promotion engagement of this top cutting blade (15) is a trailing edge (19) that has big recess (20) on top cutting blade (15), and this big recess (20) is on two edges of formed a pair of pedestal (22).

5. cutting head according to claim 4 is characterized in that, each pedestal (22) with hairclipper ear shape impeller (21) contact surface on a circular edge (38) is arranged.

6. cutting head according to claim 1, it is characterized in that, this bottom cutting blade (9) and this top cutting blade (15) are to form this bottom tooth (13) and this uneven edge of top tooth (16) in manufacture process, to carry out orientation with the direction of opposite bottom cutting blade (9) and top cutting blade (15) when the assembly.

7. cutting head according to claim 1 is characterized in that lower blade support sector (4) supports leading edge (37) to locate not give prominence under bottom tooth (13) at it.

8. cutting head according to claim 1, it is characterized in that the installation elements that is used for spring (23) comprises: this matrix (2) is being with pair of holes (47), this spring (23) has pair of holes (45) and has a pair of screw (46) in the bottom of this relative arm on the top of its a pair of relative arm (24), and pair of screws (48) is passed through the bottom of relative arm (24) and matrix (2) respectively and is screwed into screw (48) and is installed in the screw (46).

9. cutting head according to claim 1, it is characterized in that this installation elements that is used for spring comprises: this matrix (2) a pair of erection column (27) at its downside band, this spring (23) has pair of holes (26) in the bottom of a pair of relative arm (24), and wherein erection column (27) passes this hole (26).

10. cutting head according to claim 1 is characterized in that matrix trailing edge (25) locates to have round angle (54).

11. cutting head according to claim 1 is characterized in that having and is installed to spring (23) position and covers the guide plate (55) of hairclipper cavity with part.

12. cutting head according to claim 1 is characterized in that having a louvre (60,70) in this top cutting blade (15).

13. cutting head according to claim 1 is characterized in that having a fixing hole (44) in this top cutting blade (15).

14. cutting head according to claim 1 is characterized in that this matrix (2) has a pair of installation lug (7), each is installed on the lug all jut (58).

15. cutting head according to claim 1 is characterized in that: substrate (2) has the mounting groove (57) with a plurality of projections.

16. cutting head according to claim 1 is characterized in that:

This matrix (2) has the plate (53) that slidably meshes with its bottom, and this plate has the extension (56) that extend at matrix (2) rear;

Matrix (2) is gone up in the cavity that forms and is inserted with a spring (50);

This plate (53) has the spring joint sheet (43) with spring (50) engagement; And

Be used for the power of antagonistic spring (50) and push the device of this plate (53).

17. cutting head according to claim 16 is characterized in that pressurizing unit is a promotion lug (42) that is installed on this plate.

18. cutting head according to claim 17 is characterized in that pushing this promotion lug (42) with an instrument (63).

19. cutting head according to claim 16 is characterized in that the plate (53) that slidably meshes has sliding eye (60) and passes sliding eye (60) this plate is fixed to rivet (61) on the matrix.

20. a device that a top cutting blade (15) and a bottom cutting blade (9) is installed with spring (23) comprises:

A matrix (2) has the department of assembly (3) with vertical bridge (5);

One in this department of assembly (3) preceding lower blade support sector (4), has a support leading edge under a plurality of lower teeth that do not extend in the cutting blade of bottom; With

A device that meshes with the removable interlocking of hairclipper (6).

21. device according to claim 20, the device that it is characterized in that this removable interlocking engagement are that this vertical bridge (5) has installation cavity (57) and a pair of installation lug (7).

22. want 21 described devices according to right, it is characterized in that each installation lug (7) has a jut (58) in the surface within it.

23. device according to claim 21 is characterized in that having a plurality of juts (58) in the installation cavity (57).