阅读说明：本技术 刀片结构、刀片单元结构、剃须刀头及剃须装置 (Blade structure, blade unit structure, shaving head and shaving device ) 是由 杨俊新 于 2021-06-02 设计创作，主要内容包括：本发明提出了一种刀片结构、刀片单元结构、剃须刀头及剃须装置,其是至少一个刀片或刀片单元设置耦合于轴承类结构、导轨,或其组合,至少其中一种,采用刀片单元的新型刀片架和新型剃须装置。(The invention provides a blade structure, a blade unit structure, a shaving head and a shaving device, wherein at least one blade or blade unit is arranged and coupled with a bearing structure, a guide rail or a combination thereof, at least one of the blade structure, the blade unit structure, the shaving head and the shaving device adopts a novel blade frame of the blade unit and the novel shaving device.)

1. A blade form, wherein at least one blade is configured to couple to at least one of a bearing type structure, a rail, or a combination thereof.

2. A blade unit structure, wherein at least one blade unit is configured to couple to at least one of a bearing-like structure, a rail, or a combination thereof.

3. The structure of claim 1 or 2, wherein the bearing-like structure comprises at least one of a rolling bearing, a sliding bearing, a non-contact bearing, or a combination thereof.

4. The structure of claim 3, wherein the non-contact bearing comprises at least one of a magnetic bearing, a gas bearing, an electromagnetic bearing, or a combination thereof.

5. The structure of claim 1 or 2, wherein the bearing is at least one of a maintenance-free bearing, a self-lubricating bearing, or a combination thereof.

6. A razor head comprising at least a blade and a housing, wherein the razor head, at least one blade, blade unit, or a combination thereof, formed using at least the structure of any of claims 1 to 5, is configured to couple to at least one of a bearing-like structure, a rail, or a combination thereof.

7. Razor head according to claim 6, wherein the razor head has a power take-off, the bearing or guide being arranged at least to be coupled to the power take-off.

8. Razor head according to claim 6, wherein the razor head housing is at least arranged to be coupled to at least one of a bearing-like structure, a rail structure, or a combination thereof.

9. A shaving apparatus comprising at least a grip portion and a shaving head, characterized in that the shaving apparatus is assembled at least using a shaving head according to any one of claims 6-8, at least one blade, blade unit, or a combination thereof, at least one of which is arranged to be coupled to at least one of a bearing-like structure, a guide rail, or a combination thereof.

10. A shaving apparatus as claimed in claim 9, wherein the blades and/or blade units are driven by at least one of manual, electric or a combination thereof.

Technical Field

The present invention relates to the field of hair removal technology, in particular to a blade structure, a blade unit structure, a shaving head and a shaving apparatus; the invention is particularly applicable in the field of direct contact skin shaving devices.

Background

Hair removal devices are special cutting tools for beard, sweat hair and hair, which are distinguished from slicing and the like, and include, according to blade classification, three main categories, namely, shell-less blades, framed/shelled blades and shrouded blades with stationary and stationary blades; the power forms include manual and electric. They can also be classified according to the form of contact of the blade edge with the skin, and single-blade and sheathed blades can also be referred to as wet razors; the stationary and stationary knives are referred to as dry razors. The thickness of the common razor blade for directly contacting skin in the prior art is about 0.079mm, the width of the razor blade is about 2-3 mm in millimeter level, the length of the razor blade is about 40mm, the shape of the blade edge is often described as a wedge-shaped configuration, the most of the tip of the blade edge is the extended intersection of two inclined planes, and the minimum radius size/thickness of the tip of the blade edge is at least in nanometer level; the size of the blade edge part is only a small part of the whole blade, and the rest part of the blade is a basal body/a blade main body/a blade edge supporting body; the blade is a polyhedron taking the center plane of the tip of the blade edge as a symmetrical plane, and the plane of the tip of the blade edge is also a surface which is vertical to the opposite plane of the tip of the blade edge and can also be called as a symmetrical plane; the shape of the blade base body or the blade main body comprises a linear flat plate shape and a bent inverted L-shaped plate shape, and a linear flat plate-shaped blade with a cutting edge is welded on the bent inverted L-shaped plate shape; the relative position relationship between the blade and the beard or skin contact surface is a key factor influencing the shaving effect; the plane tangential to the skin guard, lubricating cap and the skin contacting surface formed by the two side edges of the cartridge is usually defined as the reference plane for the design reference, which is also mostly a plane perpendicular or approximately perpendicular to the beard and parallel to the shaving direction, although the skin contacting surface is not a plane in the strict sense, but is of value for the design reference; the angle between the skin contact side of the safe blade and the skin support surface or the angle between the skin contact side of the safe blade and the skin support surface is preferably 17 degrees because the skin support surface is very small and basically has no fixed angle with the beard, and the blade of the electric razor can be considered to be parallel to the beard; the electric shaver generally comprises a holding part with a power driving part and a shaver head part, the holding part and the shaver head part are matched and connected through a transmission part and a connecting part, the transmission part transmits driving motion to a blade part of the shaver head part, and the transmission part or the connecting part is responsible for connecting the holding part and the shaver head part; the skin contact part of the existing electric shaver is mostly a perforated metal mesh enclosure, the metal mesh enclosure is also called as a fixed cutter, the metal mesh enclosure is connected with the shell of a shaver head, a moving cutter matched with the metal mesh enclosure is connected on a transmission part, the moving cutter movement mode of the electric shaver comprises a rotary mode and a reciprocating mode, and the electric shaver has various public technologies no matter a real object shaver or the structural form of the electric shaver disclosed by the patent application; for example, the application number is reported in 2017, 7, month and 14: 201720855721.X "card shaver"; filed on 2016, month 10, day 12, application No.: 201610889963.7 "a reciprocating electric razor head", filed in 2019, 30.9.8, application No.: 201910940226.2 Portable shaver, which is a common reciprocating electric shaver structure with either a slide way on the blade holder; the names of the components of the manual shaver and the electric shaver are different, but at least the components comprise a blade, a blade support, a power transmission structure, a holding handle connection and a holding handle. Although the blade material is usually metal and metal alloy, some attempts have been made to use brittle materials for razor blade applications, such as patent application No. 3/18/1991, patent application No. 91101629.5 razor blade processing technology, patent application No. 4/5/1991, patent application No. 91102177.9 safety razor blade, all propose to use ceramic material to make razor blade, and the processing of brittle materials such as ceramic and semiconductor materials mostly adopts semiconductor technology and process, and the processing technology and process of many non-brittle materials or plastic materials are not suitable for the processing of brittle materials; besides the continuous improvement of the material of the blade body, the structure of the blade and the structure of the frame shell also determine the functional effect of the shaving device due to the improvement of various connecting structures for multiple purposes; the blade housing serves three main functions: connecting grips, supporting a stationary blade/blade assembly and supporting other auxiliary functional components; the existing practical blades are mostly inserted into the gaps on the longitudinal side surfaces and are assisted by other fixing structures. But there are also patent applications for different blade holding structures; filed on 8/2/2005, application No.: 200580004475.7 razor and blade assembly and method of manufacture thereof; filed on 8/2/2005, application No.: 200810171081.6 razor and blade assembly and method of manufacture thereof; the two patent blade holders or cutter heads can be divided into a blade assembly or blade unit and a housing frame/blade base/blade frame, and one structure of blade fixing is defined in a mode of welding a fixed blade at the end in advance to form the blade assembly/blade subassembly/blade unit, but the blade fixing mode and operation with smaller size are difficult; filed on 8/2/2005, application No.: 200580004489.9 razor and blade unit and method of manufacture thereof; the two ends of the blade subassembly are fixed by plastic blocks, and the blade subassembly can be fixed in a shell of the shaver, so that the difference is smaller compared with the common prior art; filed 4/18/2008, application number: 200880012871.8 razor cartridge with front pivot axis; filed 4/18/2008, application number: 201310176501.0 razor cartridges, both of which teach blade units that cooperate with a housing frame having a pivotal connection; the above solution, neither the blade unit nor the blade subassembly alone being a blade holder or a blade head, is at least designed for the housing/casing of the blade holder or blade head, similar to the prior art solutions in technical difficulties; the patent of No. 200680019427.X razor in 2006, No. 2 and No. 3 in 1988, No. 88203267.4 circular razor blade in 2006, No. 5 and No. 31 in 2006, and the patent of the circular razor blade in 88203267.4 propose to process a circular hole on a metal sheet, the edge of the circular hole is processed into a blade edge, and the blade, a blade supporting part and a skin supporting part are integrated into a whole, so that the razor blade is suitable for manual operation and electric operation; the processing of the round hole-shaped cutting edge is certain to be more complicated than a straight line, the processing of dozens of round hole-shaped cutting edges is also certain to be more complicated than the processing of several straight lines, the arrangement of the round hole arrays is complicated, the shaving efficiency of the round hole-shaped cutting edge blade is not only related to the arrangement of the round holes, but also related to the fact that the non-round hole parts in the thin plate of the blade holder substantially change the distribution of skin contact surfaces, each non-round hole part in the thin plate and other non-round hole parts form a plurality of skin contact surfaces, the shaving geometric shape is very complicated, and the shaving efficiency of the structure and the similar structure is lower; 2/month 27, 2017, application No.: 201710108895.4 "razor blade holder and blade assembly; the shape of the patent is similar to that of the prior common blade bracket, especially the blade end fixing structure, the structure of the patent is similar to that of the prior common blade bracket, and the blade end fixing structure is formed by combining a plurality of discontinuous planes or discontinuous curved surfaces and is provided with a plurality of connecting structures; the application number is reported in 9/30 2010: 201080044396.X "shaving apparatus with safety razor blade unit", the blade angle can be adjusted from oblique to parallel to the beard by a mechanism; application number, 6/2010 and 17/2010: 201080027774.3 method and functional razor cartridge for forming a functional razor cartridge by rapid prototyping or printing a rapid prototyping blade support structure using a 3D laser, electrode etching to form blade apertures, and adhesively bonding the blade unit to the housing; the contents of the patents relating to the above publications can be cited as prior art for this patent. In summary, the contact form of the blade and/or blade unit with the support during movement needs to be selected, and the nature and structure of the different contact forms will be different. Rationalization of blade and blade assembly functions is a common need. These desires are always present as to how to improve the selectivity and better control of the shaving razor.

Disclosure of Invention

The novel blade structure and the blade unit structure are provided, and a novel choice is provided for the novel technology of razor head assembly and the optimization of shaving effect; the invention provides at least one novel blade structure, a blade unit structure, a shaving head and a shaving apparatus.

A blade structure is at least one blade configured to couple to at least one of a bearing-like structure, a rail, or a combination thereof.

A blade unit structure is at least one blade unit configured to couple to at least one of a bearing-like structure, a rail, or a combination thereof.

At least one blade, blade unit, or a combination thereof, at least one of which is configured to couple to a bearing-like structure, a rail, or a combination thereof; the blade and/or blade unit can be connected at least to the inner ring of the bearing or to the movable part of the guide rail; the guide rail comprises a sliding guide rail and a ball guide rail; the bearing and the guide rail can be made of at least one of metal, ceramic, plastic or a combination thereof; the blade unit may be of any of the various known blade unit configurations; the blades and/or blade units include blades and/or blade units of manual and electric shavers.

Preferred bearing-like structures include at least one of rolling bearings, sliding bearings, non-contact bearings, or combinations thereof; the bearing can be a spherical bearing, a needle bearing, a joint bearing or a self-aligning bearing; since both the bearing and the guide track can be shaped to change, the blade or blade unit can follow the contour of the skin surface once attached to the bearing and the guide track.

Preferred non-contact bearings include at least one of magnetic bearings, gas bearings, electromagnetic bearings, or combinations thereof.

The preferred bearing is at least one of a maintenance-free bearing, a self-lubricating bearing, or a combination thereof; such as the self-lubricating rolling bearings of the elgs, plain bearings and linear guides.

Blade unit structure, including skin support portion and at least one blade, it is that there is at least one skin support portion, and there is at least one skin support portion roughly the hollow form frame of plate shape, and there is at least one hollow form frame edge surface of plate shape roughly a continuous surface or a continuous surface profile, and there is at least one skin support portion that has the function of blade support portion, is provided with at least one blade in the hollow form frame support portion, and there is at least one blade shape structure by: one type is a polygonal body, the blade shape of which can be that the edge as the blade tip is not a polygonal symmetrical edge; one is that the blade has at least the shape of a knife edge; selecting at least one of the two types; the blade in the skin supporting part with the blade supporting part can be integrally formed with the plate-shaped hollow frame in sequence, can be connected to the surface of the plate-shaped hollow frame after the blade is formed, can be a blade unit, or can be a combination of the blade unit and the blade unit; in the hollow frame support part, preferentially, only the tip of the blade edge contacts or approaches to the skin, the included angle between the partial surface of the blade edge on the skin contact side of at least one blade and the skin contact surface of the hollow frame support part is more than 0 degree, and the included angle between the adjacent surface of the blade edge on the skin contact side of at least one blade and the skin contact side surface of the plate-shaped hollow frame is more than 0 degree; the included angle between the partial surface of the blade edge of at least one blade skin contact side and the skin contact surface is more than 0 degree, and the optimal selection is that the included angle between the adjacent surface of the blade edge of the blade skin contact side and the skin contact surface is more than 0 degree; the blade unit includes a manual blade unit and an electric blade unit. The shape of the plate-shaped hollow frame can be quadrilateral or circular, and the electric blade unit can be a blade unit without a fixed knife or a metal mesh enclosure; the blade unit can also be provided with two skin supporting parts, wherein one skin supporting part mainly plays a role of supporting the skin, the other plate-shaped hollow frame which can play a role of the blade supporting part mainly contacts or approaches the skin, the skin supporting part which mainly plays a role of supporting the skin can be matched with the skin supporting part of the plate-shaped hollow frame which plays a role of the blade supporting part, for example, the skin supporting part which plays a role of supporting the skin can be matched with the plate-shaped hollow frame which plays a role of the blade supporting part at the outer side to support the skin; the plate-shaped hollow frame which plays a role of the blade supporting part can be connected with the power transmission part; the blade unit/blade assembly is formed by stamping, cutting, bonding, welding, fusing, snapping, riveting, threading, molding, wire cutting, etching, additive manufacturing, subtractive machining, or combinations thereof, to form at least one blade unit.

The four faces (sides and blade front and back) of the blade assembly may be part of the four sides of the blade mount/housing frame; after assembly of the blade assembly with the blade housing/base and addition of the guard and lubricant head, the blade assembly becomes a blade cartridge that is connected to the grip portion by a pivotal connection to become a complete razor.

The preferred structure of blade and skin supporting surface or blade supporting part guarantees that blade and beard contained angle setting is with close perpendicular as the priority, including blade perpendicular to beard and cutting edge inclined plane perpendicular to beard, and the blade cutting edge can be divided into single inclined plane cutting edge and double inclined plane cutting edge.

Preferred blade or blade unit arrangements are secured by welding, gluing, welding, snapping, riveting, threading or combinations thereof, at least one of which fixedly connects the blade and the frame support.

Preferred bonding, melt-fixing or liquid-fixing means are at least one of spray coating, injection molding, dip coating, photo-curing, thermal curing, 3D printing or a combination thereof; the melting-solidifying is to melt the material and solidify the material, and the liquid-solidifying is to apply liquid and solidify the material; the bonding, fusing or liquid-solid means comprises at least one of low melting point metals, ceramics, low melting point compounds, plastics, polymers, or combinations thereof.

Preferred welding includes at least one of high energy welding, induction welding, wave welding, plastic welding, ultrasonic welding, gas welding, contact welding, 3D printing, or combinations thereof; the high energy welding includes at least one of laser welding, plasma welding, electron beam welding, or a combination thereof.

Preferred blades or blade unit materials are at least one of metal based, alloy based, plastic and polymer based, ceramic based, semiconductor materials, or combinations thereof; the blade supporting and fixing part is made of at least one of metal, ceramic, glass, compound, plastic, polymer, semiconductor material or combination thereof; the supporting part is a thin strip/plate or a line; the sheet/tape or wire comprises at least one of rigid and flexible or a combination thereof.

The preferred blade and the edge part of the supporting part of the hollow frame in the same direction have at least two blades, and at least one pair of blades are opposite; the blade unit has at least two blades which are not parallel; it is common for two adjacent blades to be non-parallel to facilitate removal of shaving debris.

The preferred plate-shaped hollow frame support is less than 2mm thick, preferably less than 1 mm thick, most preferably less than 0.3mm, such as 0.2 mm thick.

Preferably the adjacent edge tip clearance is greater than the blade distal surface clearance.

A shaving head/cartridge comprising at least a blade and a power take off, being a shaving head formed using at least the blade structure, blade unit structure of any one of the preceding claims, at least one blade, blade unit, or combinations thereof, at least one of which is configured to couple to at least one of a bearing-like structure, a guide, or combinations thereof; the power output part of the manual shaver is a connecting structure of the blade holder and the holding handle or a frame of the blade holder;

in the blade unit, preferably, only the blade edge tip contacts or approaches the skin, the included angle between at least one partial surface of the blade edge on the skin contact side of the blade and the skin contact side surface of the plate-shaped hollow frame is more than 0 degree, and the included angle between at least the adjacent surface of the blade edge and the skin contact side surface of the plate-shaped hollow frame is more than 0 degree; the plate shape is generally a thin plate and comprises a plane thin plate and a curved surface thin plate, the curved surface thin plate is mostly a large-curvature thin plate, the thickness of the thin plate is mostly in millimeter level and below, and at least one blade is arranged in the hollow frame supporting part; the blade can be a polygon, a non-matrix blade edge or an existing blade; the blade can be fixedly connected in the edge part of the plate-shaped hollow frame, two ends of the blade can be connected on the surfaces of a pair of edges of the frame, and the support part of the hollow frame is formed by integral forming, assembly forming or combination of the integral forming and the assembly forming; forming a blade holder or a blade head alone or in combination with the housing; simple pivotal connections can also be added to form a simple blade holder/bit; the complexity may also be such that a fixed connection structure, a lubricant and a guard may be added and connected to the housing/shell to form a cartridge/shaver head.

The preferred razor head has a power take-off, the bearing or guide being arranged at least to couple to the power take-off; the blade and/or the blade unit can be at least connected to the inner ring of the bearing or the movable part of the guide rail, and the power output end of the shaver head is coupled to the inner ring of the bearing or the movable part of the guide rail; the outer ring of the bearing and the fixing part of the guide rail are mostly connected with the shell to play a role of fixing and supporting.

Preferably, the razor head housing is at least arranged to be coupled to at least one of a bearing-like structure, a rail structure, or a combination thereof; a fixing part is provided to be coupled to the outer race of the bearing and/or the guide rail.

The blade, the blade unit and the blade holder are preferably provided with two skin supporting parts, and at least one skin supporting part is a plate-shaped hollow frame; one of the two skin supporting parts mainly plays a role of supporting skin, the other one mainly plays a role of contacting or approaching the skin, the surface shapes of the two skin supporting parts can be flat or curved, and the surface shapes of the two skin supporting parts are approximately similar or similar in outline.

The preferable skin contact supporting part has the function of a blade supporting part, the skin contact supporting part can be in a plate shape or a three-dimensional shape with an additional side elevation, and the blade supporting part can be a shaft or a surface; the blade holder is formed of a blade unit structure having at least one of a support side, guard, lubrication, housing, mount, connector, or combinations thereof, and the support may also have a continuous outer surface, such as a partially continuous closed curve, polyhedron, or the like.

The preferred drive means for the blades and/or blade units is at least one of manual, electric, or a combination thereof; the electric driving mode is at least one of rotation, reciprocation or combination thereof.

Preferred blade holder configurations include at least one of integrally formed, split configurations, or combinations thereof.

The side edge of the shell of the blade holder is preferably provided with a structure which is matched with the end part of the blade in shape; especially when the blade is in a polygon shape or a non-matrix blade, the shape of the inside of the side edge of the blade seat is matched with the shape of the contact part of the end part of the blade, at least one shape structure matched with the shape of the end part of the blade is arranged in the blade seat, the opposite side of the tip end of the cutting edge of the blade can be placed in contact with the bottom surface of the matched shape, and the aluminum thin strip is bent to fix the blade after passing through the blade holder with a hole on the side edge; determining the matching shape of the side edge of the blade holder according to the designed gap size of the blade edge, the protruding amount of the blade edge and the blade angle; the blade holder can be a structure with a common shape and a structure which adopts a plate-shaped hollow frame as the skin supporting part; (ii) a The blade seat is at least used for accommodating the end part of the blade, and the matching shape of the side edge of the blade frame is determined according to the designed gap size of the blade edge, the protruding amount of the blade edge and the blade angle; the preferred blade seat ensures that the blade is accommodated while also providing a proper angle of the blade edge tip to the skin support surface or beard; for example, an inverted L-shaped curved blade may have a support structure in the blade housing, and the tip of the cutting edge may have a similar depending support structure on the edge of the upwardly inclined prism.

The preferred blade unit may be provided with at least one of a housing attachment locating feature, a grip attachment feature, an auxiliary locating feature, or a combination thereof; the shell connecting and positioning structure comprises various structures such as bonding, welding, fusion welding, buckling, riveting, threads, magnetism, embedding and the like, for example, a fixing sheet is arranged on the edge of the frame in a punching way; the auxiliary positioning structure mainly adjusts the angle and position of the blade to be fixed; the connection form of the blade unit/frame and the holding part comprises at least one of magnetism, buckle, embedding or combination thereof; the connection mode of the blade holder and the holding part comprises at least one of single point, single edge, multiple edges or the combination thereof.

Preferred blade unit positioning features are formed by stamping, cutting, bonding, welding, fusing, snapping, riveting, threading, molding, wire cutting, etching, additive manufacturing, subtractive machining, or combinations thereof, to form at least one of the features.

A shaving apparatus comprising at least a grip portion and a shaving head, the shaving apparatus being assembled using at least the shaving head of any one of the preceding claims, at least one blade, blade unit, or a combination thereof, at least one of which is configured to couple to at least one of a bearing-like structure, a rail, or a combination thereof; the shaver can be driven manually or electrically, and also can be provided with an electric power driving part, the plate-shaped hollow frame, the blade unit or the combination thereof are driven through the transmission connecting part, and the electric shaver can be formed as long as the plate-shaped hollow frame is connected with the transmission connecting part.

The preferred drive means for the blades and/or blade units is at least one of manual, electric, or a combination thereof.

Preferred modes of movement of the blades and/or blade units are at least one of rotary, reciprocating, following, or combinations thereof; the follow-up refers to a manual shaver.

Preferred electrically driven are at least one of a plate-shaped hollow frame provided with blades, blade units, or a combination thereof; the driving transmission connecting piece can be a shaft, a rod piece, a gear, a bearing or a shell, and also can be a flexible shaft connection, an elastic connection or a magnetic connection.

Preferred blade holder and grip connection means include at least one of detachable from the hand grip, detachable from the blade holder, or a combination thereof; the direct connection of the blade holder and the holding part and the connection of the blade holder and the holding part through an intermediate piece are included; the intermediate piece can be a freely separated piece, and also can be a non-free connecting piece of the blade holder or the holding part, namely the intermediate piece can be separated from the blade holder, separated from the holding part and simultaneously separated from the blade holder and the holding part respectively in three separation modes; the connection mode of the blade holder and the holding part comprises at least one of single point, single edge, multiple edges or the combination thereof; the connection form of the blade holder and the holding part comprises at least one of magnetism, buckle, embedding or combination thereof; the structural shape may be a point of various shapes, a line of various shapes, a plane of various shapes, a one-dimensional, a two-dimensional or a three-dimensional.

The invention has the beneficial effects that:

1. a blade structure is provided, and new structure options are added.

2. A blade unit structure is provided.

3. Shaving heads/new blade cartridges are presented.

4. Any product, device or system that employs a novel blade holder.

Drawings

FIG. 1 is a schematic view of a blade unit coupled with a bearing

1. Bearing outer race, 2, blade unit

Detailed Description

In the first embodiment, an integral hollow stainless steel plate frame is used as a blade supporting part, and the stainless steel plate is made of a stainless steel sheet material; the specification model is JDA11, the outside dimension of the stainless steel plate frame of a single blade unit is diameter 40 × thickness 0.3mm, the side widths of the stainless steel plate frame are all 2mm, the longest length of a single blade is 36mm of a triangular prism, the cross section perpendicular to the blade is 0.3mm in height and 0.3mm in bottom edge, the bevel side triangle formed by connecting the vertex of the blade and the midpoint of the bottom edge is removed, the included angle of the blade is about 18 degrees, the radius of the tip of the blade is not more than 10 micrometers, the angle of the blade and the skin contact surface of the integral hollow stainless steel plate frame is about 63 degrees, and the gap of the blade is 0.3 mm; the blades are uniformly arranged in the frame at intervals; fixing a thin plate on a workbench, adopting a three-axis laser processing machine tool, firstly processing the shape of a blade and the interior of a frame in sequence according to the design parameters of the blade, then adopting laser polishing or etching process to finely process the blade tip to make the radius of the blade less than 10 micrometers, the blade component or the blade unit can be fixedly connected with a separable buckle of an inner ring of a maintenance-free self-aligning spherical bearing with the inner diameter of 40mm, the surface of the skin contact surface of a whole hollow stainless steel plate frame and the surface of the skin contact side of the bearing are approximately the same large-curvature curved surface, the tip end of a blade edge is approximately flush with the surface of the skin contact side of the whole hollow stainless steel plate frame, the inner ring of the self-aligning bearing is detachably connected with the driving output end of a shaver, the outer ring of the self-aligning spherical bearing and the outer shell of the shaver head are fixedly assembled into a complete blade frame or a shaver head, and the shell and a holding handle part of a built-in power driving part are detachably connected through threads to form the shaver.

In the second embodiment, the blade material is adopted; the specification model is martensitic stainless steel 6Cr13, the maximum dimension of a single blade is length 36 × width 1.2 × thickness 0.15mm, the radius of the tip of a blade edge is not more than 10 micrometers, the skin contact side surface is formed by the skin contact side surface of a bearing, the angle between the blade and the skin contact surface is about 20 degrees, the gap of the blade edge is 0.3mm, the blade edge protrudes 10 micrometers from the skin contact surface, and the blades are uniformly arranged in a supporting frame at intervals; processing a single blade by adopting a traditional process, temporarily positioning the angle and the position of the blade by utilizing an auxiliary positioning tool, moving the blade tool to enable the blade to be positioned inside the self-lubricating bearing inner ring with the diameter of 36mm, adjusting the positions of the blade and a frame to enable the end part of the longitudinal side surface of the blade to be in contact with and fixed on the inner side surface of the bearing inner ring by adopting an adhesive or welding, applying the adhesive can also adopt 3D printing, and the adhesive can also be ultraviolet cured; the outer edge of the blade supporting frame is provided with a sliding end matched with the inverted L-shaped slideway, the blade supporting frame is provided with an L-shaped slideway circular easy-to-standard self-lubricating bearing, the blade supporting frame is in contact with the inverted L-shaped slideway bearing matched with the blade supporting frame through elasticity, the outer side of the inverted L-shaped slideway bearing matched with the blade supporting frame is fixedly connected with a shaving head shell, the surface of a blade unit and the skin contact side surface outside the self-lubricating bearing are approximately in the same plane and the same plane profile, the L-shaped slideway circular easy-to-standard self-lubricating bearing of the blade supporting frame is detachably connected with a driving output end, and a handle holding part connected with the driving part after other structures are perfected can be flexibly selected according to design expectation to form the shaving device.

In the third embodiment, a plurality of blades are assembled into a blade unit with an integral structure in advance, a circular self-lubricating sliding bearing is respectively arranged on two side edges of a shell of the blade holder to support the blade assembly or the blade unit, the outer surface of the blade assembly or the blade unit and the inner side surface of the blade holder form mutually matched spherical surfaces, preferably, the two mutually matched spherical surfaces can also be self-lubricating sliding bearing surfaces, a complete blade holder or a complete blade head is formed by arranging a protection part, a lubricating strip and a pivoting connecting part, and a handle is connected to form the manual shaving device after other rest structures are perfected according to design expectation.

In a fourth embodiment, similar to a conventional reciprocating electric shaver, a housing of a shaving head without a fixed cutter corresponds to a hollow fixed cutter holder, and for convenience of understanding and description, the housing of the shaving head corresponds to the fixed cutter holder substantially identically, the shaving head is provided therein with a blade, a transmission output end and a housing, the housing has a substantially rectangular shape surrounding the shaving head, the blade unit or the blade is substantially flush with at least one outer side surface of the housing by its own structural dimension, the housing skin contact side surface has a shape of a continuous curved surface and a continuous curved surface contour with the blade or the blade unit skin contact side surface, the blade unit or the blade support is provided on a rail sliding portion, both ends of the rail are connected to the inner side surface of the housing, the housing corresponds to a contact fixing support portion of the rail, the rail sliding portion is connected to the transmission output end of the shaving head by a rod or a housing structure, the separable razor head is coupled to a grip handle having a powered portion to form a razor.

This description is by way of example only, and not necessarily all of the prior art has been omitted; all possible forms, methods, shapes and configurations, which are possible without the inventive activity of anyone, within the scope of protection of the present invention, as determined by the claims, are the scope of protection of the present invention.