EP2219832B1 - Razor with floatably secured shaving blade member - Google Patents
Razor with floatably secured shaving blade member Download PDFInfo
- Publication number
- EP2219832B1 EP2219832B1 EP08844810A EP08844810A EP2219832B1 EP 2219832 B1 EP2219832 B1 EP 2219832B1 EP 08844810 A EP08844810 A EP 08844810A EP 08844810 A EP08844810 A EP 08844810A EP 2219832 B1 EP2219832 B1 EP 2219832B1
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- EP
- European Patent Office
- Prior art keywords
- shaving blade
- shaving
- blade member
- unit
- shoulder
- Prior art date
- Legal status (The legal status 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 status listed.)
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Images
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
- B26B21/08—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 involving changeable blades
- B26B21/14—Safety razors with one or more blades arranged transversely to the handle
- B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
- B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
- B26B21/227—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit with blades being resiliently mounted in the changeable unit
Definitions
- the present invention relates to a razor suitable for wet shaving wherein the razor comprises a cartridge that includes a floatably secured shaving blade member for provision of a conforming shave.
- the clips of commercially available razor serve an important purpose of keeping the shaving blades secured to the razor cartridge as it is known e.g. from GB 2092052 A , which discloses the preamble of claim 1.
- the present invention relates to a shaving blade unit comprising a shaving cartridge having a floatably secured shaving blade member wherein said cartridge comprises:
- the shaving blade unit 10 comprises a shaving cartridge 15 having a floatably secured shaving blade member 20 while the cartridge 15 comprises a housing 25 having a front wall 26, a rear wall 27, and opposing side walls 28 extending between said front and rear walls 26, 27.
- the shaving blade member 20 has opposing ends 21 with a shoulder 22 at each end 21. Each shoulder 22 rests along a respective said side wall 28 with a cutting edge 23 of the shaving blade member 20 is facing a front surface 25a of the housing 25.
- the cartridge 15 additionally includes a resilient member 30 that is disposed rearward of the shaving blade member 20.
- This resilient member 30 is secured to a rear surface 25b of the housing 25 by a shaving blade member retainer 35.
- the resilient member 30 acts to provide a forward biasing force to the shaving blade member 20 such that contact between the shoulder 22 and its respective side wall 28 is at least maintained when the unit 10 is removed from a skin surface during shaving.
- the housing 25 serves as a carrier for the shaving blade member 20 within the unit 10 and may be formed from injection molded plastics.
- suitable plastic materials include, but are not limited to, Xylex® resin (a transparent blend of polycarbonate and an amorphous polyester available from SABIC Innovative Plastics), Zylar® (a water clear styrene methylmethacrylate copolymer that has been modified for impact which is available from NOVA Chemicals), and Noryl® (which is a class modified PPE resins consists of amorphous blends of PPO polyphenylene ether resin and polystyrene available from SABIC Innovative Plastics).
- the shaving blade member retainer 35 may be formed from the same materials as the housing 25.
- the retainer 35 may additionally be formed separately from the housing 25 and attached thereto or it may be integrally formed with the housing 25 via extrusion molding etc.
- the retainer 35 secures the resilient member 30 to the rear of the shaving blade member 20.
- the resilient member 30 exhibits a relatively stationary surface upon which the shaving blade member 20 may exert force against during shaving use and times of non-use by a consumer.
- This biasing force serves to provide shaving blade members that are able to conform to the surface of the skin more readily but with the appropriate amount of give that allows for a comfortable shave. At times, the forward biasing force may be sufficient to maintain contact between the shoulder 22 and the adjacent side wall 28 when the unit 10 is contacted with the skin surface during shaving.
- the retainer 35 comprises a channel 36 in which the resilient member 30 may rest.
- the channel 36 further secures the resilient member 30 within the cartridge 15.
- the cross-sectional shape of the channel 36 may take any number of forms, e.g., semicircular, rectangular, slitted, triangular, etc., depending on whatever is most suitable given the shape of the resilient member 30.
- FIG. 4 shows cross section at x of FIG. 1 wherein the resilient member is round.
- FIGS. 3 and 5 show a cross section at x in a shaving blade unit of the present invention where the resilient member and mating channel comprise a rectangular and triangular cross sections, respectively.
- the resilient member 30 may have a cross-sectional shape of any type so long as it is a shape that mates with the channel's shape (when channel 36 is present) to provide a snug configuration of the two components. Furthermore, rear portions of the shaving blade members 20 contact the resilient member 30 to provide the biasing force.
- the resilient member 30 may be formed of a number of different materials to provide the relatively responsive return that is characteristic of this component.
- the resilient member 30 is selected from the group consisting of solid or hollow elastomeric tubing, solid or hollow rubber tubing, foam forms, coils, spring fingers, and combinations thereof.
- the resilient member 30 may comprise a single component that is paired with its respective retainer 35 where the resilient member 30 runs along the length of the retainer 35 or substantially the entire length of the retainer 35.
- the resilient member 30 may occur in a plurality with a single retainer 35 such that a single member is disposed rearward of each shaving blade member 20 where there is also a plurality of shaving blade members 20 within a unit 10.
- a section of solid or hollow elastomeric tubing that is placed with one of its round ends (serving as a resilient member 30) contacting the retainer 35 or the channel 36 of the retainer 35 while an opposing end of the tubing portion is contacting a rear portion of the shaving blade member 20.
- FIGS. 7a and 7b show a single retainer of the unit of FIG. 6 without the shaving blade members along with a cross section of the same retainer.
- the retainer 35 may comprise a recess 37 to receive at least a portion of the shaving blade member 20.
- the recess 37 may be formed in any shape that easily accommodates the shaving blade member.
- a plurality of such slitted recesses 37 are shown in FIG. 8 , which is a cross section at y of FIG. 1 .
- the recesses 37 are disposed forward of a lubricating strip 60, which is disposed after the shaving blade members 20.
- Such recesses 37 may be spaced at regular intervals along a length of the retainer 35, where the length runs from the rear wall 27 to the front wall 26 of the housing when the retainer 35 is joined to the housing 25.
- the recesses 37 may range in from about 0.15 mm to about 0.25 mm, about 0.16 mm to about 0.23 mm, from about 0.17 mm to about 0.21 mm, from about 0.17 mm to about 0.19 mm, or even about 0.18 mm. Regardless of the recess 37 width, it is important that to the extent there is unoccupied area within the recess 37, steps must be taken to ensure that the shaving blade member 20 does not move in a deleterious manner in the recess 37 when shaving occurs such that cutting of the skin is prevented. There may be a plurality of recesses 37 in a retainer 35 that run along the length of the retainer 35 to accommodate a plurality of shaving blade members 20.
- the plurality of retainers 35 disposed along the length of the cartridge tends to provide an heightened balance and support of the shaving blade member(s) contained within the cartridge 15.
- FIGS. 1 and 2 there are three retainer(s) 35 disposed along the length of the cartridge 15.
- Suitable shaving blade members 20 may comprise a shaving blade alone which has been bent or a shaving blade which has been joined to a bent blade support.
- Suitable shaving blade members are disclosed in US Patent 6804886 and US Serial Applications 11/400989 and 11/401131 .
- the shaving blade members may also have cutting edges 23 with the same or varying tip radii, the latter of which is disclosed in US Patent Publications 2007/0227008A1 , 2007/0227009A1 , 2007/0227010A1 .
- each opposing end 21 of the shaving blade member 20 is no more than about 5 mm, 4mm, 3 mm, 2 mm, 1 mm, or even 0.5 mm from the adjacent side wall 28. Therefore, it is envisioned that various embodiments of this invention shall include units that are free of clips disposed at opposing ends 21 of the shaving blade member(s).
- the shoulder 22 which resides at the opposing end 21 of each shaving blade member 20 (as shown in FIG. 2 ).
- the shoulder 22 is a cut out of the shaving blade member's opposing end 21 that is disposed at the member's 20 upper corner edge.
- the elimination of this shaving blade member 20 edge provides a surface that can easily abut and conform to the side wall 28 of the housing 25, particularly at its rear surface 25a.
- the shoulder 22 is particularly useful in allowing the shaving blade member 20 to remain a prescribed geometry position as described in US Patent 6212777 . It has been well established that by achieving and maintaining the correct blade geometry a more comfortable and closer shave results.
- this shoulder may have a depth of from about 0.5 mm to about 2.0 mm and a width (from opposing end 21 toward a center of shaving blade member 20) of from about 0.5 mm to about 1.5 mm and is formed by a process selected from the group consisting of laser cutting, metal stamping, machining methods, and combinations thereof.
- the unit of the present invention shall be paired with a handle 50 to form a usable razor.
- the handle 50 may be removably attachable to the cartridge or may be integrally formed with the cartridge.
- FIGS. 9 and 10 illustrate a removable handle that includes an ejection button 45 which may be depressed to separate the handle 50 from the unit 10.
- a cartridge hood 40 may also be paired to the cartridge 15 to form the unit 10. Particularly in the instance when a removable handle is implemented the cartridge hood serves as a connection point between the handle 50 and the cartridge 15. It often aids in the maneuverability afforded a shaver when trying to replace the cartridge with a new cartridge when the shaving blade members have been dulled by continued use or unintended damage to the cutting edge 21 of the shaving blade member.
- the floatable securing of the shaving blade member 20 within a cartridge 15 comprises the steps of providing a housing 25 for a cartridge 15 where the housing 25 comprises a front wall 26, a rear wall 27, and opposing side walls 28 extending between the front and rear walls 26, 27; resting a shaving blade member 20, having opposing ends 21 with a shoulder 22 at each end 21, at its shoulder 22 along the side wall 28; positioning a resilient member 30 rearward of the shaving blade member 20; securing the resilient member 30 and the shaving blade member 20 with a shaving blade member retainer 35; wherein the resilient member 30 provides a forward biasing force to the shaving blade member 20 such that contact between said shoulder 22 and said side wall 28 is at least maintained when said unit 10 is removed from a skin surface during shaving.
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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
Description
- The present invention relates to a razor suitable for wet shaving wherein the razor comprises a cartridge that includes a floatably secured shaving blade member for provision of a conforming shave.
- In the past few years, there has been an increase in the number of blades that are incorporated into wet shaving razors. This increase has been seen in an attempt to provide users with a closer shave while increased guard area has also burgeoned to provide increased shaving comfort. Despite this advantage of increased comfort, it is accompanied with a slight disadvantage of making it more difficult for a user to see the skin surface that is being shaved. Thus, this inability to see the shaving area makes a more precise shave more difficult to achieve. Furthermore, a large portion of marketed razors have and do still contain clips at the respective longitudinal ends of the cartridge to secure the shaving blades to the cartridge housing. Users, however, perceive that these clips also contribute to a less precise shave as they block the view of certain portions of skin surface to be shaved. The clips of commercially available razor, however, serve an important purpose of keeping the shaving blades secured to the razor cartridge as it is known e.g. from
GB 2092052 A - Clearly, there is a need to provide a shaving product to consumers that allows for an improved view of the surface to be shaved so that there is little to no apprehension about safety or the preciseness of the resulting shave due to a blocked view. There remains an additional need to heighten the efficiency of the contact area of the razor's shaving surface and the skin surface such that as much contact area as possible equates to area where hair is being shaved.
- The present invention relates to a shaving blade unit comprising a shaving cartridge having a floatably secured shaving blade member wherein said cartridge comprises:
- a. a housing having a front wall, a rear wall, and opposing side walls extending between said front and rear walls;
- b. said shaving blade member having opposing ends with a shoulder at each end and wherein said shoulder rests along said side wall and wherein a cutting edge of said shaving blade member is facing a front surface of said housing;
- c. a resilient member disposed rearward of said shaving blade member and that is secured by a shaving blade member retainer; and
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FIG. 1 is a bottom perspective view of a shaving blade unit of the present invention. -
FIG. 2 is a top perspective view of the unit ofFIG. 1 . -
FIG. 3-5 show top plan views of various retainer and resilient member configurations of the presently claimed razor blade units paired with their respective cross-sectional views. -
FIG. 6 is a top plan view of another cartridge of the shaving blade unit of the present invention where resilient members are round and individually placed against a rearward portion of each shaving blade member. -
FIGS. 7a and 7b are a top plan view and a cross-sectional view of one of the retainers shown inFIG. 6 . -
FIG. 8 shows a side cross-sectional view of one of the retainers ofFIGS. 1 and2 . -
FIG. 9 is a bottom perspective view of alternate embodiment of the shaving blade unit of the present invention. -
FIG. 10 is a top perspective view of the unit ofFIG. 9 . - The present invention is related to a shaving blade unit as shown in
FIGS. 1 and2 andFIGS. 9 and10 . InFIGS. 1 and2 , theshaving blade unit 10 comprises a shavingcartridge 15 having a floatably securedshaving blade member 20 while thecartridge 15 comprises ahousing 25 having afront wall 26, arear wall 27, andopposing side walls 28 extending between said front andrear walls blade member 20 has opposingends 21 with ashoulder 22 at eachend 21. Eachshoulder 22 rests along a respective saidside wall 28 with acutting edge 23 of the shavingblade member 20 is facing afront surface 25a of thehousing 25. Thecartridge 15 additionally includes aresilient member 30 that is disposed rearward of the shavingblade member 20. Thisresilient member 30 is secured to arear surface 25b of thehousing 25 by a shavingblade member retainer 35. Theresilient member 30 acts to provide a forward biasing force to the shavingblade member 20 such that contact between theshoulder 22 and itsrespective side wall 28 is at least maintained when theunit 10 is removed from a skin surface during shaving. - The
housing 25 serves as a carrier for the shavingblade member 20 within theunit 10 and may be formed from injection molded plastics. For instance, suitable plastic materials include, but are not limited to, Xylex® resin (a transparent blend of polycarbonate and an amorphous polyester available from SABIC Innovative Plastics), Zylar® (a water clear styrene methylmethacrylate copolymer that has been modified for impact which is available from NOVA Chemicals), and Noryl® (which is a class modified PPE resins consists of amorphous blends of PPO polyphenylene ether resin and polystyrene available from SABIC Innovative Plastics). The shavingblade member retainer 35 may be formed from the same materials as thehousing 25. Theretainer 35 may additionally be formed separately from thehousing 25 and attached thereto or it may be integrally formed with thehousing 25 via extrusion molding etc. - The
retainer 35 secures theresilient member 30 to the rear of the shavingblade member 20. As a result of being secured by theretainer 35, theresilient member 30 exhibits a relatively stationary surface upon which the shavingblade member 20 may exert force against during shaving use and times of non-use by a consumer. This biasing force serves to provide shaving blade members that are able to conform to the surface of the skin more readily but with the appropriate amount of give that allows for a comfortable shave. At times, the forward biasing force may be sufficient to maintain contact between theshoulder 22 and theadjacent side wall 28 when theunit 10 is contacted with the skin surface during shaving. - According to the invention the
retainer 35 comprises achannel 36 in which theresilient member 30 may rest. Thechannel 36 further secures theresilient member 30 within thecartridge 15. The cross-sectional shape of thechannel 36 may take any number of forms, e.g., semicircular, rectangular, slitted, triangular, etc., depending on whatever is most suitable given the shape of theresilient member 30.FIG. 4 shows cross section at x ofFIG. 1 wherein the resilient member is round.FIGS. 3 and 5 show a cross section at x in a shaving blade unit of the present invention where the resilient member and mating channel comprise a rectangular and triangular cross sections, respectively. As shown, theresilient member 30 may have a cross-sectional shape of any type so long as it is a shape that mates with the channel's shape (whenchannel 36 is present) to provide a snug configuration of the two components. Furthermore, rear portions of the shavingblade members 20 contact theresilient member 30 to provide the biasing force. - The
resilient member 30 may be formed of a number of different materials to provide the relatively responsive return that is characteristic of this component. For instance, theresilient member 30 is selected from the group consisting of solid or hollow elastomeric tubing, solid or hollow rubber tubing, foam forms, coils, spring fingers, and combinations thereof. In particular, theresilient member 30 may comprise a single component that is paired with itsrespective retainer 35 where theresilient member 30 runs along the length of theretainer 35 or substantially the entire length of theretainer 35. Alternatively, theresilient member 30 may occur in a plurality with asingle retainer 35 such that a single member is disposed rearward of each shavingblade member 20 where there is also a plurality of shavingblade members 20 within aunit 10. For instance, where there are a plurality of shaving blade members (e.g., five as shown inFIG. 6 ) disposed in a parallel configuration within acartridge 15 and there are correspondingly threeretainers 35 to provide support for theshaving blade members 20, there may be a section of solid or hollow elastomeric tubing that is placed with one of its round ends (serving as a resilient member 30) contacting theretainer 35 or thechannel 36 of theretainer 35 while an opposing end of the tubing portion is contacting a rear portion of the shavingblade member 20. Similarly, a second tubing portion would be disposed further down the length of the same retainer to contact the retainer or channel of the retainer and the rear portion of a second, third, fourth, and fifth parallel shaving blade members that line up with the corresponding portion of the first shaving blade member.FIGS. 7a and 7b show a single retainer of the unit ofFIG. 6 without the shaving blade members along with a cross section of the same retainer. - It is desirable for the
retainer 35 to comprise arecess 37 to receive at least a portion of the shavingblade member 20. Therecess 37 may be formed in any shape that easily accommodates the shaving blade member. A plurality of such slittedrecesses 37 are shown inFIG. 8 , which is a cross section at y ofFIG. 1 . Therecesses 37 are disposed forward of a lubricatingstrip 60, which is disposed after the shavingblade members 20.Such recesses 37 may be spaced at regular intervals along a length of theretainer 35, where the length runs from therear wall 27 to thefront wall 26 of the housing when theretainer 35 is joined to thehousing 25. Therecesses 37 may range in from about 0.15 mm to about 0.25 mm, about 0.16 mm to about 0.23 mm, from about 0.17 mm to about 0.21 mm, from about 0.17 mm to about 0.19 mm, or even about 0.18 mm. Regardless of therecess 37 width, it is important that to the extent there is unoccupied area within therecess 37, steps must be taken to ensure that theshaving blade member 20 does not move in a deleterious manner in therecess 37 when shaving occurs such that cutting of the skin is prevented. There may be a plurality ofrecesses 37 in aretainer 35 that run along the length of theretainer 35 to accommodate a plurality ofshaving blade members 20. There may also be a two or more shavingblade member retainers 35 present along the length of thehousing 25. The plurality ofretainers 35 disposed along the length of the cartridge tends to provide an heightened balance and support of the shaving blade member(s) contained within thecartridge 15. InFIGS. 1 and2 , there are three retainer(s) 35 disposed along the length of thecartridge 15. - As indicated immediately above, there may be more than one
shaving blade member 20 present in theunit 10. For instance, there may be a plurality, e.g., 2, 3, 4, 5, 6, 7, 8, or evenmore blade members 20 disposed within the unit where theirrespective cutting edges 21 are placed parallel to one another. Suitableshaving blade members 20 may comprise a shaving blade alone which has been bent or a shaving blade which has been joined to a bent blade support. Such suitable shaving blade members are disclosed inUS Patent 6804886 andUS Serial Applications 11/400989 and11/401131 edges 23 with the same or varying tip radii, the latter of which is disclosed inUS Patent Publications 2007/0227008A1 ,2007/0227009A1 ,2007/0227010A1 . In certain embodiments of the present invention, it has been found advantageous and quite possible to decrease the distance between the opposingend 21 of theshaving blade member 20 and its respectiveadjacent side wall 28. This is made possible due to the no longer existent need to include clips at or immediately adjacent theends 21 of the shaving blade member(s) to secure themembers 20 to the housing. For instance, it is desirable that each opposingend 21 of theshaving blade member 20 is no more than about 5 mm, 4mm, 3 mm, 2 mm, 1 mm, or even 0.5 mm from theadjacent side wall 28. Therefore, it is envisioned that various embodiments of this invention shall include units that are free of clips disposed at opposing ends 21 of the shaving blade member(s). - Another aspect of this invention is the
shoulder 22 which resides at the opposingend 21 of each shaving blade member 20 (as shown inFIG. 2 ). Theshoulder 22 is a cut out of the shaving blade member's opposingend 21 that is disposed at the member's 20 upper corner edge. The elimination of thisshaving blade member 20 edge provides a surface that can easily abut and conform to theside wall 28 of thehousing 25, particularly at itsrear surface 25a. Theshoulder 22 is particularly useful in allowing theshaving blade member 20 to remain a prescribed geometry position as described inUS Patent 6212777 . It has been well established that by achieving and maintaining the correct blade geometry a more comfortable and closer shave results. The incorporation of a shoulder at an opposing end of a shaving blade member removes the need for a clip to retain the blade geometry. This improved design allows for a less complicated manufacturing process that is also less costly due to the decrease in starting material and removal of a process step of securing the clips to the cartridge. Ideally, this shoulder may have a depth of from about 0.5 mm to about 2.0 mm and a width (from opposingend 21 toward a center of shaving blade member 20) of from about 0.5 mm to about 1.5 mm and is formed by a process selected from the group consisting of laser cutting, metal stamping, machining methods, and combinations thereof. - In most instances, the unit of the present invention shall be paired with a
handle 50 to form a usable razor. Thehandle 50 may be removably attachable to the cartridge or may be integrally formed with the cartridge.FIGS. 9 and10 illustrate a removable handle that includes anejection button 45 which may be depressed to separate thehandle 50 from theunit 10. Acartridge hood 40 may also be paired to thecartridge 15 to form theunit 10. Particularly in the instance when a removable handle is implemented the cartridge hood serves as a connection point between thehandle 50 and thecartridge 15. It often aids in the maneuverability afforded a shaver when trying to replace the cartridge with a new cartridge when the shaving blade members have been dulled by continued use or unintended damage to thecutting edge 21 of the shaving blade member. - The floatable securing of the
shaving blade member 20 within acartridge 15 that is disclosed herein comprises the steps of providing ahousing 25 for acartridge 15 where thehousing 25 comprises afront wall 26, arear wall 27, and opposingside walls 28 extending between the front andrear walls shaving blade member 20, having opposing ends 21 with ashoulder 22 at eachend 21, at itsshoulder 22 along theside wall 28; positioning aresilient member 30 rearward of theshaving blade member 20; securing theresilient member 30 and theshaving blade member 20 with a shavingblade member retainer 35; wherein theresilient member 30 provides a forward biasing force to theshaving blade member 20 such that contact between saidshoulder 22 and saidside wall 28 is at least maintained when saidunit 10 is removed from a skin surface during shaving. - The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."
- All documents cited in the Detailed Description of the Invention are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
- While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the scope of the appended claims.
Claims (13)
- A shaving blade unit (10) comprising a shaving cartridge (15) having a floatably secured shaving blade member (20) wherein said cartridge (15) comprises:a. a housing (25) having a front wall (26), a rear wall (27), and opposing side walls (28) extending between said front (26) and rear walls (27);b. said shaving blade member (20) having opposing ends (21) with a shoulder (22) at each end (21) and wherein said shoulder (22) rests along said side wall (28) and wherein a cutting edge (23) of said shaving blade member (20) is facing a front surface (25a) of said housing (25);c. a resilient member (30) disposed rearward of said shaving blade member (20) that is secured by a shaving blade member retainer (35), said shaving blade unit being characterized in that:said shaving blade member retainer (35) has a channel (36) along its length in which the resilient member is recessed and said resilient member (30) provides a forward biasing force to said shaving blade member (20) such that said contact between said shoulder (22) and said side wall (28) is at least maintained when said unit (10) is removed from a skin surface during shaving.
- The shaving blade unit (10) of claim 1 wherein said retaining member (35) comprises one or more recesses (37) for receiving at least a portion of said shaving blade member (20).
- The shaving blade unit (10) of claim 2 wherein said one or more recesses (37) are in the form of slots.
- The shaving blade unit (10) of claim 1 wherein said cartridge (15) comprise two or more shaving blade member retainers (35) disposed along a length of the housing (25).
- The shaving blade unit (10) of claim 4 wherein said shaving blade member retainers (35) are not placed at the side walls (28) of said housing (25).
- The shaving blade unit (10) of claim 1 wherein said shaving blade member (20) has opposing ends (21) and wherein at least one of said shaving blade member opposing ends (21) is no more than about 5 mm from said side wall (28).
- The shaving blade unit (10) of claim 1 wherein said shaving blade member (20) comprises a bent shaving blade.
- The shaving blade unit (10) of claim 1 wherein said shaving blade member (20) comprises a shaving blade joined to a blade support.
- The shaving blade unit (10) of claim 1 wherein said shoulders (22) are formed by a process selected from the group consisting of laser cutting, metal stamping, machining methods, and combinations thereof.
- The shaving blade unit (10) of claim 1 wherein said resilient member (30) selected from the group consisting of solid tubing, hollow tubing, foam forms, elastomeric forms, coils, spring fingers, and combinations thereof.
- The shaving blade unit (10) of claim 1 wherein said unit (10) is free of clips disposed at opposing ends of said shaving blade member (20).
- The shaving blade unit (10) of claim 1 wherein the forward biasing force is sufficient enough to maintain contact between said shoulder (22) and said side wall (28) when said unit (10) is being contacted with the skin surface during shaving.
- A shaving razor comprising:a. a shaving cartridge (15) having a floatably secured shaving blade member (20) wherein said cartridge (15) further comprises:1) a housing (25) having a front wall (26), a rear wall (27), and opposing side walls (28) extending between said front (26) and rear walls (27);2) a shaving blade member (20) having opposing ends (21) with a shoulder (22) at each end (21) and wherein said shoulder (22) rests along said side wall (28) and wherein a cutting edge (23) of said shaving blade member (20) is facing a front surface (25a) of said housing (25);3) a resilient member (30) disposed rearward of said shaving blade member (20) and secured by a shaving blade member retainer (35) the shaving razor being characterized in that the shaving blade member retainer (35) is provided width a channel (36) along its length in which the resilient member (30) is recessed and wherein said resilient member (30) provides a forward biasing force to said shaving blade member (20) such that said contact between said shoulder (22) and said side wall (28) is at least maintained when said unit (10) is removed from a skin surface during shaving; andb. a handle (50) that is removably attachable to said cartridge (15).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US159607P | 2007-11-02 | 2007-11-02 | |
PCT/IB2008/054518 WO2009057068A1 (en) | 2007-11-02 | 2008-10-30 | Razor with floatably secured shaving blade member |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2219832A1 EP2219832A1 (en) | 2010-08-25 |
EP2219832B1 true EP2219832B1 (en) | 2012-02-22 |
Family
ID=40293613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08844810A Active EP2219832B1 (en) | 2007-11-02 | 2008-10-30 | Razor with floatably secured shaving blade member |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2219832B1 (en) |
JP (1) | JP5053439B2 (en) |
KR (1) | KR20100083163A (en) |
CN (1) | CN101842197B (en) |
AT (1) | ATE546261T1 (en) |
MX (1) | MX2010004762A (en) |
RU (1) | RU2437754C1 (en) |
TW (1) | TW200940288A (en) |
WO (1) | WO2009057068A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105196323A (en) * | 2015-09-20 | 2015-12-30 | 梁现 | Easy-to-clean and easy-to-assemble-and-disassemble novel shaver |
WO2020124375A1 (en) * | 2018-12-18 | 2020-06-25 | 任向荣 | Shaving unit and manufacturing method therefor |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4378634A (en) * | 1979-12-07 | 1983-04-05 | The Gillette Company | Razor blade assembly |
US4302876A (en) * | 1980-03-14 | 1981-12-01 | Warner-Lambert Company | Razor blade with inclined edge |
EP0486678B1 (en) * | 1990-06-11 | 1996-07-17 | The Gillette Company | Razor |
US5461781A (en) * | 1994-07-01 | 1995-10-31 | Warner-Lambert Company | Dynamic shaving system with integral push clean bar and spring member |
US20030159291A1 (en) * | 1997-07-25 | 2003-08-28 | Gregory Clark | Shaving system with uniform shaving forces |
US6839968B2 (en) * | 2002-05-09 | 2005-01-11 | The Gillette Company | Shaving systems |
US7621203B2 (en) * | 2004-02-09 | 2009-11-24 | The Gillette Company | Shaving razors, and blade subassemblies therefor and methods of manufacture |
WO2007033373A1 (en) * | 2005-09-14 | 2007-03-22 | Eveready Battery Company, Inc. | Blade mounting members for a razor cartridge |
WO2007147420A1 (en) * | 2006-06-20 | 2007-12-27 | Bic-Violex Sa | Razor blade unit head and safety razor including such a blade unit |
-
2008
- 2008-10-30 CN CN200880113974.3A patent/CN101842197B/en active Active
- 2008-10-30 KR KR1020107009699A patent/KR20100083163A/en not_active Application Discontinuation
- 2008-10-30 WO PCT/IB2008/054518 patent/WO2009057068A1/en active Application Filing
- 2008-10-30 AT AT08844810T patent/ATE546261T1/en active
- 2008-10-30 EP EP08844810A patent/EP2219832B1/en active Active
- 2008-10-30 MX MX2010004762A patent/MX2010004762A/en active IP Right Grant
- 2008-10-30 RU RU2010117001/02A patent/RU2437754C1/en not_active IP Right Cessation
- 2008-10-30 JP JP2010530622A patent/JP5053439B2/en not_active Expired - Fee Related
- 2008-10-31 TW TW097142134A patent/TW200940288A/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2009057068A1 (en) | 2009-05-07 |
JP2011500255A (en) | 2011-01-06 |
CN101842197B (en) | 2013-03-27 |
JP5053439B2 (en) | 2012-10-17 |
CN101842197A (en) | 2010-09-22 |
TW200940288A (en) | 2009-10-01 |
MX2010004762A (en) | 2010-06-01 |
EP2219832A1 (en) | 2010-08-25 |
RU2437754C1 (en) | 2011-12-27 |
ATE546261T1 (en) | 2012-03-15 |
KR20100083163A (en) | 2010-07-21 |
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