WO2010013070A2 - Rasoir amélioré - Google Patents

Rasoir amélioré Download PDF

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Publication number
WO2010013070A2
WO2010013070A2 PCT/GB2009/050966 GB2009050966W WO2010013070A2 WO 2010013070 A2 WO2010013070 A2 WO 2010013070A2 GB 2009050966 W GB2009050966 W GB 2009050966W WO 2010013070 A2 WO2010013070 A2 WO 2010013070A2
Authority
WO
WIPO (PCT)
Prior art keywords
blade
razor
razor according
lubricant
conduit
Prior art date
Application number
PCT/GB2009/050966
Other languages
English (en)
Other versions
WO2010013070A3 (fr
Inventor
Lyn Parkin
Original Assignee
Lyn Parkin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lyn Parkin filed Critical Lyn Parkin
Publication of WO2010013070A2 publication Critical patent/WO2010013070A2/fr
Publication of WO2010013070A3 publication Critical patent/WO2010013070A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/50—Means integral with, or attached to, the razor for stropping the blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
    • B26B21/446—Shaving aid stored in the razor handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material

Definitions

  • the present invention relates to razors and in particular to razors including one or more blades for use in wet shaving.
  • Safety razors of the type used in wet shaving include one or more blades mounted in a head, which is itself attached or attachable to a handle with which the razor is held by a person who is shaving.
  • the reason why such razors are known as safety razors is that the blades are mounted in a manner which allows them to be used in shaving but prevents them from being used in the manner of a knife.
  • Safety razors fall in to two categories, those which are disposable where the head and handle are formed in one piece. This type of razor is used a number of times, until the user determines that the blade is not sufficiently sharp to shave to the user's desired standard, and then disposed of.
  • the other type of razor comprises a handle and a replaceable head, the replaceable head including one or more blades (typically two or three blades).
  • the replaceable head including one or more blades (typically two or three blades).
  • the cause of the user determining that the blades are insufficiently sharp may be simply that the blades have become blunt, or that the blades have become chipped. From the user's perspective it is immaterial whether the blades are blunt or chipped. What is noticed is deterioration in the standard of the resulting shave.
  • razors have a lubrication strip ahead of the razor blades.
  • Other razors include a strip which is arranged to present the hairs to be shaved at an ideal angle to the blade following.
  • Other razors have blades which are either mounted independently on springs or are made of a spring steel so that the blade conforms to the profile of skin from which the hairs to be shaved grow.
  • a user Prior to shaving a user will usually apply some sort of shaving aid to the area of hair to be removed. This may be shaving soap, cream, gel, foam or oil. Such products serve two purposes. They soften the hair to be removed and lubricate the path of the razor head and blades over the skin. However, the resulting mixture of shaved hairs and shaving aid can block the razor to the extent that the razor is lifted out of contact with the skin giving a poor standard o f shave. A user will often need to place the razor under a running tap to disperse the mixture blocking the razor and/or tap the razor on a solid object, such as a sink.
  • a solid object such as a sink.
  • a further aspect of the invention addresses the shape of razor blades.
  • razor blades In general razor blades present a planar cutting surface. It is considered that a more efficient shape of blade may include a cutting edge which presents an arcuate surface to the skin.
  • a razor comprising at least one blade and at least one sharpening element associated with the at least one blade, the at least one sharpening element being operable to sharpen said at least one blade.
  • a razor comprising at least one blade and at least one blade cleaning element associated with the at least one blade, the at least one blade cleaning element being operable to clean debris from the at least one blade.
  • a razor comprising at least one blade and at least one tool associated with the at least one blade, the at least one tool being operable to condition said at least one blade.
  • the tool may be a sharpening element and/or a cleaning element.
  • a razor comprising at least one blade and a self-lubrication system, the self-lubrication system including a supply of lubricant and a means to deliver the lubricant to the at least one blade.
  • a razor comprising at least one curved blade.
  • a razor comprising a ceramic blade.
  • the ceramic blade may or may not require sharpening, depending on the ceramic material used and the expected life of the blade and the disposable element upon which it is mounted.
  • Other materials, such as metal, and metal alloys may be used for the blades.
  • the at least one blade may be ceramic, although blades formed of metals or metal alloys may be used.
  • the use of ceramic blades is desirable as such blades are known to be harder wearing than blades form of metal or metal alloys, and hence require less sharpening and will last longer.
  • a ceramic blade would not be sharpened.
  • a ceramic blade may require sharpening, in which case a sharpening element formed of a stone or ceramic or other material capable of sharpening the material from which the blade is formed into a cutting edge.
  • the razor may comprise two spaced apart substantially parallel blades, and the at least one sharpening element may be disposed between the blades and be arranged to sharpen both blades.
  • one blade is sharpened from its underside and the other from its upper side. This provides the advantage that only one sharpening element need be provided.
  • the at least one sharpening element is mounted on a carriage and the carriage is mounted so as to move from one side end of the razor blade to the other.
  • a carriage return apparatus may be provided to return the carriage to its starting position.
  • Such a carriage return apparatus may include a spring which is compressed as the carriage is moved across the blades to sharpen them, the compression in the spring being released to return the carriage to its starting position.
  • the carriage may be mounted on a swing arm.
  • the carriage may comprise blade sharpening and blade cleaning elements, and may be formed of ceramic, plastics material, metal or metal alloy according to the material from which the blades are formed and their requirement for sharpening and/or cleaning.
  • two sharpening and/or cleaning heads are provided, each being slidable between the ends of the blades.
  • the heads are operable together or independently of one another.
  • a disposable razor head comprising at least one blade and at least one blade sharpening and/or cleaning element.
  • the blade sharpening and/or cleaning element may be of any type described herein.
  • the razor is provided with a lubrication system and a blade sharpening and/or cleaning system.
  • actuation of these two systems is independent of one another. Hence, the user presses a pad to pump lubricant to the blades, and then if cleaning and/or sharpening is required the user moves the cleaning/sharpening elements across the blades.
  • the blade cleaning element is formed integrally with the blade sharpening element.
  • the razor is further provided with a receptacle to receive waste cleaned from the razor by the at least one cleaning element.
  • the system may include a fluid pressurising means. Further, the release of lubricant from the said supply may be commanded by operation of the at least one blade sharpening/cleaning element. Hence, operation of the blade sharpening element may sharpen, and/or clean and/or lubricate the blades in one pass. The release of lubricant may occur on the commencement of movement of the carriage from its starting position and/or upon the return of the carriage to its starting position.
  • the razor of the invention will result in significantly less waste as the razors or their razor heads will be disposed of much less frequently.
  • a cleaning element for a razor will make the use of the razor a more pleasant experience and will waste less water (often users will leave a tap running whilst shaving for the purposes of cleaning the razor head).
  • a lubrication system for a razor will improve the performance of the razor and may reduce the total amount of lubricant used. Further, the time taken to prepare the skin for shaving may be reduced.
  • lubricant has been used throughout the specification. This term is used in the context of shaving and may encompass gels, liquid soaps and oils, or mixtures thereof, not simply oil.
  • the blade cleaning element may include a brush, or a scraper for example.
  • Figure 1 is a schematic representation of a razor according to the invention
  • Figure 2 is an exploded view of the razor illustrated in Figure 1;
  • Figure 3 is an exploded view of parts of the head of the razor illustrated in Figure 1;
  • Figure 4 is a schematic plan view of the razor illustrated in Figure 1;
  • Figure 5 is a schematic representation of a part of the razor illustrated in Figure 1;
  • Figure 6 is a cross-sectional side view of the razor illustrated in Figure 1;
  • Figure 7 is a schematic bottom plan view of elements of the razor illustrated in Figure 1 ;
  • Figure 8 is an exploded view of elements of the razor illustrated in Figure 1 ;
  • Figure 9 is a schematic representation of a part of a razor according to another embodiment of the invention.
  • Figure 10 is a schematic representation of a part of the razor illustrated in Figure 9;
  • Figure 11 is an exploded view of a part of the razor illustrated in Figure 9;
  • Figure 12 is an exploded view of the razor illustrated in Figure 9;
  • Figure 13 is an exploded view of a part of the razor illustrated in Figure 9;
  • Figure 14 is an exploded view of the valve arrangement of a razor according to the invention.
  • Figure 15 is a schematic representation of a valve component in a first state of a razor according to the invention.
  • Figure 16 is a schematic representation of the valve illustrated in Figure 15 in a second state.
  • Figure 17 is a schematic representation of a blade carrier of a razor according to the invention.
  • Figure 18 is a schematic plan view of a razor according to another aspect of the invention
  • Figure 19 is a schematic cross-sectional view along axis A-A of the razor illustrated in Figure 18;
  • Figure 20 is a detailed view of the part labelled B in Figure 19;
  • Figure 21 is a detailed view of the part labelled C in Figure 19;
  • Figure 22 is a detailed view of the part labelled D in Figure 19;
  • Figure 23 is a detailed view of the part labelled E in Figure 19;
  • Figure 24 is an exploded view of the razor illustrated in Figure 19;
  • Figure 25 is a schematic representation of the razor illustrated in Figure 18 with the cleaning/sharpening mechanism closed;
  • Figure 26 is a schematic representation of the razor illustrated in Figure 18 with the cleaning/sharpening mechanism open;
  • Figure 27 is an isometric partial cross-sectional view of the head of the razor illustrated in Figure 18;
  • Figure 28 is a schematic representation of a blade sharpener/cleaning element of the razor illustrated in Figure 18;
  • Figure 29 is an isometric view of the razor of Figure 18 illustrating part of the lubrication system.
  • a razor 1 comprising a head assembly 2, a shaft 3 and a handle 4.
  • the head 2 includes a blade carrier 5.
  • the razor of the invention is shown in greater detail in Figure 2.
  • the handle 4 is attached to an end 3" of the shaft 3 and comprises a lubricant container 20 and a cover 21.
  • Attached to the other end of the shaft 3 is the head assembly 2, which includes lever carrying elements 6a, 6b which are attached together prior to being joined to the end 3' of the shaft 3.
  • Ends 6a' and 6b' are provided with fastening elements which provide for the lever carrying elements 6a, 6b, when attached to one another, to be fastened to the end 3' of shaft 3.
  • the blade holder support elements 7a, 7b Extending from the ends 6a' and 6b' are blade holder support elements 7a, 7b (shown in greater detail in Figure 3).
  • the blade holder support elements each include a recess (recess 7c of the blade holder support element 7b being visible in Figure 3).
  • the recess 7c aligns with a corresponding recess in blade holder support element 7a to form a gear housing, which housing is shaped and dimensioned to receive a drive shaft 10 which is provided at one end with a toothed input gear 10' and its other end a toothed output gear 10".
  • the recesses 7c include a portion 7d of reduced dimension, and it is in this where the drive shaft sits.
  • levers 8a, 8b are fixed thereto by first aligning and then engaging the hole 9b in lever 8b with the boss 6c, and then aligning and engaging the hole 9a of lever 8a with the boss 6c.
  • Each of the levers 8a, 8b is provided with an elongate wall 8a', 8b' respectively.
  • the inner edge of the wall 8b' engages with an edge 8a" of the lever 8a and similarly, the inner edge of the wall 8a' engages with an edge 8b" of the lever 8b, thereby providing a stop to limit respective movement between the levers 8a, 8b.
  • the levers 8a, 8b are each provided with a toothed portion 9c, as shown in Figure 7, which engages with the input gear 10' of drive shaft 10, forming a rack and pinion drive.
  • the levers 8a, 8b move towards the longitudinal centre line of the razor, and due to aforementioned rack and pinion drive, the drive shaft 10 is caused to rotate in a first direction.
  • the levers 8a, 8b are biased to the position illustrated in Figure 7.
  • a collar 11 mounts on the output gear 10" (the collar 11 being mounted on the output gear 10" after attachment of spacer 11' to the drive shaft 10), the collar being toothed internally, rotates with the drive shaft when mounted on the said output gear 10".
  • Extending from the collar 11 is a mounting bracket 12 to which is attached a swing arm 13 by welding together ultras onically the respective ends of bracket 12 and swing arm 13.
  • the bracket 12 and swing arm 13 are held in a jig whilst the welding operation is completed.
  • the free end 14 of the swing arm 13 mounts blade sharpening stones.
  • the blade carrier 5 includes a blade holder 16, safety wires 17 and blades 15, which fit into slots 18 and lie behind the safety wires 17.
  • each formed of two pieces 19a, 19b are attached to the ends of the blade holder 16.
  • the blades 15 are curved, and their radius of curvature corresponds substantially to the radius described by the free end 14 of the swing arm 13 upon rotation of the drive shaft 10. Hence, upon pressing the levers 8a, 8b together, the sharpening stones are caused to move across the cutting faces of the blades 15.
  • the blades are formed of a metal or metal alloy and hence require sharpening.
  • the movement of the sharpening stones across the blades serves an additional purpose, i.e. to clean the blades of used shaving materials (a combination of hair and shaving lubricant).
  • the blades 15 instead of being formed from a metal or metal alloy are formed from a ceramic material.
  • Tools, such as knives, having ceramic blades are known.
  • a feature of such blades is that they do not require sharpening (of course in time a ceramic blade will become blunt, but the time taken for this to occur is so long that replacement at that stage is economic).
  • Such a blade material may be used in a razor.
  • the lubrication system comprises a source of lubricant, and means to deliver lubricant from the source to the blades 15.
  • the lubricant source comprises a container 20, in which is mounted a spring biased plunger.
  • the container includes a frangible element, which is broken to allow fluid release.
  • valve housing 33 having an outlet pipe 34 extending from the side thereof and a plunger 30, which includes a valve comprising two spaced apart pieces 31 which are insertable into the end of the valve housing 33, and a head 32 which is so shaped and dimensioned as to engage with cam surfaces 8c.
  • the cams 8c engage with the head 32 and causing the plunger 30 to move through the valve housing 33 from the position illustrated in Figure 16, where the opening 43, which is in fluid communication with the outlet pipe 34, is open to the source of pressurised lubricant fluid in the container 20, to the position illustrated in Figure 15 where the opening 43 is closed off.
  • pressurised fluid passes through the opening 43 and outlet pipe 34 to the pipe 35.
  • the opening 43 is gradually closed off.
  • the action of the valve also meters the volume of lubricant fluid delivered.
  • a lubricant delivery pipe 35 is attached at an end 36 to the outlet pipe 34.
  • a free end 37 of the pipe 35 connects to the free end 14 of the swing arm 13.
  • the valve housing 33 fits between the lever carrying elements 6a, 6b and is located behind a piercing element 38, which upon attachment of a replacement lubricant container 20 pierces the seal thereof to allow fluid therein to be ejected therefrom into the valve 33, and then to the blades 15 via the outlet 34 and pipe end 37.
  • the delivery pipe 35 is bonded to an outside edge 13" of the swing arm 13.
  • the end 37 of the pipe 35 is pushed into a bore on the end of swing arm 13.
  • the remaining part of the pipe 35 overlying the swing arm 13 is bonded thereto, with the surface of the swing arm 13 being covered with a rubber material to facilitate bonding of the pipe 35 to the swing arm.
  • the free end 37 of the pipe 35 fits into a bore in the sharpening stone mounting block, which includes further bores to deliver lubricant to the sharpening stones. As the stones move across the blades lubricant is released.
  • FIGS 9 to 13 illustrate an alterative embodiment of the invention in which the levers 8a, 8b are replaced with a trigger 50 which attaches directly onto the output gear 10".
  • the swing arm is moved simply by pushing the trigger 50 to the left or right.
  • Figure 11 illustrates the free end 14 of the swing arm 13.
  • Sharpening stones 40 are mounted in holders in the swing arm 13, the holders being formed such that a sharpening stone 40 located therein will sharpen the blade to an angle of twelve degrees from both above and below the blade so as to remove burrs.
  • the swing arm 13 is made of a two piece moulding, which when joined together form an internal lubrication channel, which is connected to pipe 35 at one end and debouches into channels 13b & 13c.
  • the lubrication fluid is delivered to the sharpening stones 40 through channels 13b and 13c, the fluid being caused to move through these channels due to the pressurisation of the lubrication fluid.
  • a valve may be provided between the end of the pipe 35 and the channels 13b, 13c .
  • a suitable valve would, when subjected to pressurised fluid on one side, allow lubricant fluid to weep through, and prevent lubricant fluid weeping through when subjected to the pressure on both sides of the valve.
  • a suitable type of valve would be a split wall valve, where the walls deform under pressure allowing a split to open, but return to their original shape when the pressure source is removed.
  • the sharpening stones 40 and the swing arm 13 also serve to clean the blades 15, waste material accumulated on the blades being pushed to one end of the blades or the other.
  • a container 41 is provided to capture waste removed by the blade holder (or other cleaning element).
  • the container 41 is removably mounted in the cover 42 of the head 5.
  • Figures 18 to 29 illustrate another embodiment of the invention, in which the blades ?? are formed of a ceramic material.
  • the ceramic material from which the blades may be of such a grade that no sharpening is required. However, as mention earlier in the description, razors with such blades do require cleaning. Further, the ceramic material from which the blades are made may be of a grade where sharpening is beneficial, in which case both sharpening and cleaning may be provided. Whilst the blades described in the razor illustrated in Figures 18 to ?? are ceramic, to the extent that ceramic blades may require sharpening, the same mechanism could be used with metallic blades.
  • the razor illustrated in Figures 18 to 29 differs in a number of ways from that illustrated in fore similar to the razor illustrated in Figures 1 to 17.
  • the blade cleaners/sharpeners 66, 67 are actuated manually by the user engaging a part thereof directly, rather than by a trigger mechanism.
  • the lubrication system also differs. Instead of a combined valve and metering system, the lubrication fluid is provided by connecting a lubricant delivery conduit to the pressurised lubricant supply canister and compressing the conduit to generate a marginal increase in pressure within the conduit, which is sufficient to disperse lubricant on to and/or about the blades.
  • the razor of Figures 18 to 29 comprises a blade head 62 which mounts a pair of spaced apart blades 61.
  • the blade head 2 is attached to a plate 64.
  • the body of the razor which comprises a lower part 72 and an upper part 73, attaches to the body of the razor by means of arms 69, 70 which are mounted in the part of the body proximate the head and are caused to move from between head holding and head releasing positions by movement of a cam plate 71 which engages with the arms 69, 70 moving them from the holding to the release position against the force generated by a spring arranged to bias the arms 69, 70 into the head holding position.
  • This arrangement for attaching a blade head to a razor is not in itself new.
  • the body includes a chamber 100 configured to receive a cartridge 75, which contains lubricant and is pressurised.
  • a cartridge 75 which contains lubricant and is pressurised.
  • the tube 79 extends through the razor body to an injection head 80, which can be seen in Figure 20.
  • a connection tube 81 extends from the injection head 80 to the plate 64 of the blade head.
  • the plate 64 includes a collar 64a configured to receive one end of the connection tube 81.
  • the collar 64a further includes a bore 64b substantially concentric with the collar 64a and the internal bore of the connection tube 81.
  • a lubrication collar 65 is connected to the plate 64 and aligned with the bore 64b, thereby creating a fluid connection between the lubrication collar 65, which is adapted to release lubrication fluid on to and about the blades 61, and the lubricant charged cartridge 75.
  • the end 79a of the tube 79 includes a sharp element adapted to pierce the cap 77 of the cartridge 75.
  • the position of the tube within the razor body is maintained by a spacer plate 78 which pushes the connection tube 81 against the inside of the upper part 73 of the razor body.
  • the lubrication collar 65 is best illustrated in Figures 23 and 29.
  • the lubrication collar includes a pair of spaced apart holes 65a each aligned with a respective one of the blades 61.
  • the internal diameters of the holes 65a are such that the pressure generated by the pressurised cartridge is not sufficient to force lubrication fluid through the holes 65a without additional pressure.
  • the lubrication collar 65 also includes outlets 65b to each side of the collar (only one of these outlets can be seen in Figure 29.
  • the lubrication collar 65 also provides a distribution chamber 65c which is in fluid connection with bore 64b of plate 64. Fluid entering the chamber 65c may leave via the holes 65a or the outlets 65b. The application of pressure to the tube 79 provides sufficient additional pressure to cause lubrication fluid to debouch from the holes 65a.
  • outlets 65b Under the influence of such additional pressure on the tube 79, the outlets 65b change shape very slightly, which in combination with the marginal additional pressure, allows lubrication fluid to pass through the outlets.
  • the openings tend from the elliptical shape illustrated to a more circular shape.
  • the dimensions of the outlets 65b are such that lubricant passing therethrough is at least partially atomised, thereby creating a fine mist at the back of the blades 61. Due to the orientation in which razors are held by users, lubricant settling on the blades 61 runs towards the cutting face of blades 61.
  • the part of the razor configured to exert additional pressure on lubrication fluid in the tube 79 will now be described with reference to Figure 21.
  • the tube 79 passes through the razor body between the lower and upper body parts 72, 73.
  • the upper body part 73 includes a boss 73a extending towards the inside of the body.
  • the lower body part 72 includes a pair of spaced apart plates 72b which approximately align with the edges of the boss 73a.
  • the plates 72b are connected to a part 72b of the lower body 72 that is formed of a flexible material and is adapted to be pressed inward towards the upper body 73. In doing so the tube 79 is squeezed between the plates 72b and the boss 73a. This provides the required marginal increase in pressure to deliver lubrication fluid to the blades.
  • the blade sharpener/cleaner is best illustrated with reference to Figures 20, 24, 27 and 28.
  • both blade sharpening and cleaning is provided for by left and right hand sharpening heads 76, 77, each of which comprise elements situated above the upper and lower blades 61 respectively.
  • the sharpening head 67 comprises blade sharpening elements 67a and 67b, arranged to sharpen upper and lower blades 61 respectively.
  • a wall 67c extends upward from the upper surface of element 67a toward the underside of element 67b. However, the wall 67c terminates below the underside of the element 67a, leaving a gap sufficiently large to accommodate the upper blade 61.
  • each element 67a, 67b conforms in shape to the upper surface of the blades 61, with the forward end of the elements 67a, 67b extending to the tip of the blades 61.
  • the sharpening head 67 includes a curved portion, the curve extending through the elements 67a, 67b and the wall 67c, and is referred to by reference numerals 67a', 67b' and 67c'.
  • the elements 67a and 67b, and the wall 67c all assist in cleaning of the razor, i.e. removing the mixture of shaving lubricant and cut hair from the blades 61.
  • the provision of curved portions 67a', 67b' and 67c' provide a smooth flow path, thereby assisting in preventing blockages.
  • the head 67 includes two additional features to assist in cleaning of the razor head, namely elements 67d and 67g.
  • the element 67d of wall 67c provides an angled surface along which the mixture of shaving lubricant and cut hair travels, the said mixture being guided to a collection region 67h of the sharpening head 67.
  • the upper surface of the lower blade 61 is therefore cleaned by the element 67a, with the underside of the upper blade 61 being cleaned by the wall 67c. Any build up of mixture to be removed on the face 67a" of the element 67a will spill over onto the upper surface 67a'" of element 67a, where it is guided by the curved surface 67c' and the angled surface 67d of the wall 67c to the collection region 67h of the sharpening head 67.
  • the upper surface of the upper blade 1 is cleaned by the faces 67b" and 67c' of the element 67c, and also by element 67g, which has a leading tip 67g' and a curved trailing edge 67g", which together serve to pull any mixture of shaving lubricant and removed hair in the path thereof from the upper blade 61. Mixture so removed falls into the collection region 67h of the sharpening head 67.
  • a container is provided to receive the said mixture.
  • the container is preferably attached to the plate 64.
  • the sharpening head 67 is located in the blade head 62, and is so shaped and dimensioned as to slide along the blades 61 and the blade shield 63.
  • the head 67 includes a part 67e which is situated above the blade shield 63 and is provided with raised portions 67f in order that the part 67e may be engaged by a digit of a user, typically the thumb.
  • the internal shape of the head 67 in the region of the underside of the part 67e and the upper part of the element 7b corresponds to the shape of the blade shield 63, thereby providing for the head 67 to slide along the blade shield 63.
  • the shape of the underside of the element 67a which corresponds to the shape of the upper surface of blade 61 and the upper surface of wall 67c, which corresponds to the shape of the under side of the upper blade 61, and a rear wall part 6Vi of the head 67 provide for said head to side along the blades 61.
  • the blades 61 and the blade shield 63 form a track along which the sharpening head 67 may slide in the manner of a carriage.
  • the sharpening head 66 is arranged as a mirror image of the head 67, and hence when brought together abut one another, as can be appreciated from Figure 24.
  • the sharpening heads 66 and 67 may be moved independently or together, their movement being confined by the end walls 62' of the blade head, as can be appreciated from Figure 29.
  • the heads 66 and 67 have been described as sharpening heads, they may be provided as cleaning heads only.
  • the elements 67a, 67b may not be configured as sharpening elements, but otherwise may be the same shape and configuration.
  • the heads 66, 67 could be made of plasties material, rather than a sharpening material, such as stone, ceramic or suitably specified and finished metal.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

L'invention concerne un rasoir qui comprend au moins une lame et au moins un élément d'aiguisage associé à la ou aux lame(s), l'élément d'aiguisage permettant d'aiguiser la ou les lame(s).
PCT/GB2009/050966 2008-07-31 2009-07-31 Rasoir amélioré WO2010013070A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0814006.3A GB0814006D0 (en) 2008-07-31 2008-07-31 Improved razor
GB0814006.3 2008-07-31

Publications (2)

Publication Number Publication Date
WO2010013070A2 true WO2010013070A2 (fr) 2010-02-04
WO2010013070A3 WO2010013070A3 (fr) 2010-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/050966 WO2010013070A2 (fr) 2008-07-31 2009-07-31 Rasoir amélioré

Country Status (2)

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GB (2) GB0814006D0 (fr)
WO (1) WO2010013070A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012172381A1 (fr) * 2011-04-28 2012-12-20 Jurcevic Ivan Rasoir équipé d'un dispositif de nettoyage des lames

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US2041680A (en) * 1935-02-20 1936-05-19 Haven Razor Corp De Self-sharpening safety razor
US2200246A (en) * 1937-11-18 1940-05-14 Guimond Joseph Albert Self-sharpening safety razor
US2530499A (en) * 1947-02-14 1950-11-21 Auerbach Zemach Razor with means for reconditioning the cutting edges of razor blades
US2933808A (en) * 1956-11-05 1960-04-26 James C Friel Razor of the self-honing type
US6694618B1 (en) * 2002-09-03 2004-02-24 De Villiers Johannes Blade grinding mechanism for razor

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Publication number Priority date Publication date Assignee Title
WO2012172381A1 (fr) * 2011-04-28 2012-12-20 Jurcevic Ivan Rasoir équipé d'un dispositif de nettoyage des lames

Also Published As

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GB0814006D0 (en) 2010-02-03
GB0913386D0 (en) 2009-09-16
GB2465445A (en) 2010-05-26
WO2010013070A3 (fr) 2010-07-29

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