• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BLADES AND BLADE CABLES. The present invention relates to a blade handle (12) comprising a main body part and a connector (14) for connecting, in use, the main body part to a blade cartridge (16), the body part main housing comprising first and second spaced fingertip engaging surfaces (24, 26) adapted, in use, to be engaged with opposite sides of a user's fingers (43) and a grip part (20) interspersed between the surfaces of fingertip engagement (24, 26). The gripping part is substantially transversal to at least one of the fingertip engaging surfaces. A first of the finger engaging surfaces (24) preferably comprises first (36) and second (38) spaced fingertip engaging surface parts, one of the fingertip engaging surface parts (38) which is located proximally to the connector (14) and more preferably substantially above and behind a rear edge (42) of the blade cartridge (16).
    公开号:BR112014005436B1
    申请号:R112014005436-3
    申请日:2012-09-05
    公开日:2020-12-01
    发明作者:Robert Woolfson；Adam Yaffe
    申请人:Evoshave Limited；
    IPC主号:
    专利说明:

    description
    [001] This invention relates to razor blades and handles, and in particular, but not limited to, razor blades and razor blade handles.
    [002] Most blades on the market today comprise a handle with a fixing point to which a disposable blade cartridge can be detachable. A user grabs the handle to manipulate the blade cartridge and slide it against the skin to shave. A conventional blade handle is usually designed with ergonomics in mind, and thus normally comprises grip parts corresponding to the user's finger positions and high friction components to facilitate grip of the handle when wet.
    [003] Razors are available and have been optimized for shaving particularly body parts. For example, a generally cylindrical handle that is gripped between the thumb and index finger of a hand. This type of handle is sometimes considered best for shaving a user's face as it can be easily rotated and tilted to obtain the ideal contact angle during shaving in relatively tight curves of a user's face. Conversely, more part-shaped handles are also available and are considered particularly efficient for shaving a user's legs as they allow for a large grip surface. A part-type configuration allows better control at arm length, when shaving large areas or when sliding the blade over relatively long distances.
    [004] One of the main goals of shaving is to achieve a close shave, which is best achieved with a sharp blade and when the blade or blades are placed in close proximity to the skin. These general requirements result in a risk of cutting the user's skin as the best shaving result is achieved with a very sharp blade placed almost in direct contact with the skin.
    [005] To ensure that the blade is kept sharp, many shaving systems use disposable blade cartridges that can be detachably attached to the handle and discarded when they become blind. Disposable blade cartridges often comprise a plurality of blades that allow blades to be set at increased distances closer to the user's skin, thus ensuring a close shave, but reducing the risk of pulling on hair as it can happen if the length of the stubble is too long. In addition, a multi-blade blade cartridge also offers some scope for distributing the pressure applied to the blades over a larger contact area, thereby reducing the risk of cuts.
    [006] Disposable blade cartridges, however, suffer from several disadvantages including volume in relation to the size of the blades themselves, making it difficult to achieve good control. In addition, multi-blade blade cartridges, in particular, often require a large area of skin contact for optimal performance. To alleviate these problems, many disposable blade cartridges are designed to articulate with respect to the blade handle so that the cartridge automatically adopts a desired contact angle to the skin and compensates for the incorrect handle angle. While such a configuration alleviates some of the problems highlighted above, it can also result in a general lack of direct control of the blade cartridge and can be difficult or not intuitive to use.
    [007] This invention aims to solve one or more of the above problems and / or provide an alternative and / or improved blade handle.
    [008] According to a first aspect of the invention, a blade cable comprising a main body part and a connector is provided to connect, in use, the main body part to a blade cartridge, the main body part comprising first and second spaced finger engaging surfaces adapted, in use, to be engaging with opposite sides of a user's finger and a gripping portion sandwiched between the finger engaging surfaces.
    [009] According to a second aspect of the invention, a blade cable comprising a main body part and a connector is provided to connect, in use, the main body part to a blade cartridge, the main body part comprising first and second spaced fingertip engagement surfaces adapted, in use, to be engaging with opposite sides of a user's fingertips and a grip portion interspersed between the fingertip engagement surfaces.
    [0010] A third aspect of the invention provides a blade comprising a blade cartridge and a blade handle, the blade cartridge and the handle being detachably connected to each other, where the blade handle comprises a main body part and a connector for connecting, in use, the main body part to the blade cartridge, the main body part comprising first and second spaced finger engaging surfaces adapted, in use, to be engaged with opposite sides of a user's finger and a grip part interspersed between the engagement surfaces of the finger.
    [0011] A fourth aspect of the invention provides a blade comprising a blade cartridge and a blade handle, the blade cartridge and the handle being detachably connected to each other, where the blade handle comprises a main body part and a connector for connecting, in use, the main body part to the blade cartridge, the main body part comprising first and second spaced fingertip engagement surfaces adapted, in use, to be engaging with opposite sides of the fingertips of the user and a grip part between the fingertip engaging surfaces.
    [0012] The first and second spaced finger engaging surfaces are preferably adapted, in use, to be engaging with opposite sides of a plurality of the user's fingers.
    [0013] The blade cartridge preferably comprises one or more blades having an elongated cutting edge oriented, in use, substantially at right angles to the longitudinal geometric axis of a user's fingers when inserted into, or grasping the handle.
    [0014] A fifth aspect of the invention provides a blade cartridge for a blade comprising a main body part having at least two hollow partitioned openings extending from a front surface thereof to a rear surface thereof, at least one blade located on or towards the front of the cartridge providing two or more cutting edges, each cutting edge being aligned with one of said partitioned openings, and a cover for retaining the blade or blades on the main body part, where the openings with partitions have a cross section that is wider in or towards the rear of the cartridge than in or towards the front of the cartridge.
    [0015] One of the main differences between the invention and known blade cables may therefore be that the cable is adapted to grab the user's fingers, rather than the user having to grab the cable. Effectively, the blade handle becomes an extension of the user's finger or fingers making it more intuitive and / or natural to use. Furthermore, since the cable grabs the user's fingers, instead of the user having to grab the cable, this makes the cable particularly useful for users with reduced strength or function in their hands, restricted movement or impaired dexterity.
    [0016] Additionally, a conventional blade handle acts as a force reduction / distance multiplier lever between the user's hand and the blade cartridge. However, the invention moves the point of interaction between the user's fingers and the blade cartridge much closer to each other, meaning that a relatively lower force needs to be exerted to achieve a desired blade pressure, which is particularly advantageous for the user with weak hands. Additionally, an additional effect of bringing the point of interaction between the user's fingers and the blade cartridge closer to each other is a reduction in the multiplication of distance, that is, small movements of the handle do not translate into much larger movements the blade cartridge. This aspect can be particularly beneficial for users with shaky hands or impaired dexterity.
    [0017] The first and second finger engagement surfaces are preferably ergonomically shaped to conform to the shape of a user's fingers, and more preferably, to the shape of the index and second fingers of the user of each hand. By inserting the user's fingers between the finger engaging surfaces, one or both of the finger engaging surfaces can be brought into contact with the fingers in order to grip them.
    [0018] The grip part is preferably substantially transversal to at least one of the finger engaging surfaces, that is, when viewed with the end, the cross section is substantially I-shaped. The grip part allows a user to grip the main body part between the sides or parts of the two fingers, for example, the index and second fingers of each hand or the thumb and other finger of each hand.
    [0019] Accordingly, the blade handle is effectively attached, in use, to the user's fingers by the finger engagement surfaces by gripping opposite sides of one or more fingers, the user grasping the grip part between the two fingers or a thumb and another finger, or any combination of any of the above. Effectively, therefore, the blade handle becomes an extension of the user's fingers allowing greater control through the position and movement of the blade cartridge. This can be particularly beneficial when shaving body parts at arm's length, for example, the legs.
    [0020] Due to the ergonomic shape of the blade handle, it can be used with a variety of hand / finger sizes as one of the finger engagement surfaces is normally only in partial or intermittent contact with the finger.
    [0021] A first of the finger engaging surfaces preferably comprises a plurality of parts of the finger engaging surface. Such a configuration can allow the blade handle to be used in several different ways as will be described in more detail below. Preferably, at least one of the finger engaging surfaces comprises at least two spaced finger engaging surface parts. In a more preferred embodiment of the invention, one of the finger engaging surface parts is located proximally in the connector for the blade cartridge, and more preferably still, substantially above and behind a rear edge of the blade cartridge. By allowing the user to place their fingertips on, or on the blade cartridge, a much greater degree of control of the cartridge can be exercised by the fingertips.
    [0022] A space or opening in the blade handle is preferably provided adjacent to the connector, adjacent to the finger engagement surface portion located proximally to the connector, to allow a user's finger or fingers to protrude beyond a periphery front of the blade handle to engage the rear edge of the blade cartridge directly.
    [0023] One or both finger engaging surfaces may additionally comprise additional finger engaging surface parts in different positions to allow the blade handle to be used in different ways. The plurality of finger engagement surface parts, where provided, can be located, when viewed from the side, at different levels and / or at different distances from the connector.
    [0024] A resiliently deformable element is preferably disposed on one or both finger engaging surfaces and / or on both sides of the grip part. The resiliently deformable element can be adapted, in use, to exert a gripping pressure or force on the user's fingers. The resiliently deformable element, where provided, is preferably made of a high-friction material, such as rubber, to facilitate gripping the blade handle when wet or soapy.
    [0025] The connector preferably comprises relatively movable engagement projections adapted to engage, in use, the complementary shape engagement projections or recesses of the blade cartridge. The hitch projections can be triggered to move relative to each other by a push button, which can be located anywhere on the blade handle. More preferably, the push button, where provided, is located on the first finger engagement surface on an opposite side of it to the finger engagement surface portion, that is, so that the location of the push button corresponds, in use, the location of the user's thumb when the first and second fingers of a user's hand are inserted between the finger engagement surfaces on opposite sides of the grip part.
    [0026] Preferred modalities of the invention should now be described, by way of example only, with reference to the attached drawings, in which:
    [0027] Figure 1 is a perspective view from above and behind a razor blade comprising a first embodiment of a razor handle according to the invention;
    [0028] Figure 2 is a perspective view from above and from the front of the razor blade handle in Figure 1;
    [0029] Figure 3 is a side view of the razor blade handle of figure 1;
    [0030] Figure 4 is a front end view of the handle of the razor blade in Figure 1;
    [0031] Figure 5 is an end view from the rear of the handle of the razor blade in Figure 1;
    [0032] Figure 6 is a plan view from above the handle of the razor blade in figure 1;
    [0033] Figure 7 is a plan view from below the handle of the razor blade in Figure 1;
    [0034] Figures 8, 9 and 10 are schematic partial side views of the razor blade of figure 1 being used in modes 1, 2 and 3, respectively;
    [0035] Figure 11 is a perspective view from the front and from above of a second embodiment of a blade according to the invention;
    [0036] Figure 12 is a perspective view from above and behind the blade illustrated in figure 11;
    [0037] Figure 13 is a perspective view from below and behind the blade illustrated in figures 11 and 12, being grasped by a user;
    [0038] Figure 14 is a perspective view from the front of the blade cartridge as illustrated in figures 11 to 13;
    [0039] Figure 15 is a perspective view from the rear of the blade cartridge of figure 14; and
    [0040] Figure 16 is a schematic cross section through the connector of figures 11 to 15.
    [0041] In figures 1 and 3, a first embodiment of a razor blade 10 according to the invention comprises a razor blade 12 which is detachably attached to a disposable razor cartridge 16 by a connector 14. Figures 2 and 4 to 7 are additional views of the same blade handle despite the blade cartridge being removed.
    [0042] In the description below, the directions and orientations referred to (such as, up, down, top, front, rear, etc.) are internally consistent with the orientation of the cable as illustrated in the drawings, although it will be appreciated that the cable can be rotated about any geometric axis, in which case such references to directions and orientations need to be interpreted accordingly.
    [0043] The blade handle of the first embodiment 12 comprises a main body part having a generally flat central screen part 20 which serves as a grip by which the handle 12 can be grasped, in use, between two fingers of a hand. user (not illustrated). A first edge 22 of the central web part 20 extends substantially transversely from the center of a first curved finger engagement surface 24 and a pair of wing parts 26 extends substantially transversely outwardly in opposite directions , from the opposite edge 28 of the screen part 20.
    [0044] As best seen from figures 4 and 5, the main body part has a cross-section generally in the shape of an I defining a pair of recesses in the shape of a C, one facing the other, 21 to receive the a user's fingertips (not shown). The internal surfaces of the main body part 18 are provided with a high-friction rubber insert 32, which is formed by a resiliently deformable or conformable simultaneous injection molding process. The rubber insert 32 provides a resiliently deformable or conformable surface that improves the comfort of the blade handle and that reduces the relative slip of the user's fingers (not shown) when wet and / or soapy.
    [0045] The first curved finger engagement surface 24 is symmetrical around the center line of the screen part 20 on each side and has a more rear edge 34 that slopes downwards (as illustrated in the drawing) from the center screen 20. The first finger engagement surface 24 extends forward from that edge 34 and plunges to form the first curved recess 36 that is shaped to substantially conform to the shape of a user's fingertip portion before climbing up to form a raised plateau part 38 ending at a leading edge 40 adjacent to the blade cartridge 16. In the illustrated embodiment, the height of the plateau part 38 corresponds to the height of the rear edge 43 of the blade cartridge 16 for reasons to be explained below .
    [0046] The wings 26 are also symmetrical around the central line of the screen part 20 and each wing has a more rear edge 44 that tilts upwards (as illustrated in the drawings) from the central screen 20. The wings 26 extend forward from its rear edge 44 and are slightly curved, as best seen in Figure 4, to substantially conform to the shape of the top of a user's fingertip. It will be noted that the wings 26 end at a distance from the blade cartridge 16 to allow the user's fingers (not shown) to project forward, through a space 43 provided by the user, and to the rear edge 42 of the blade cartridge 16, as is best illustrated in figure 4.
    [0047] In Figure 7, it can be seen that the blade handle 12 comprises a pair of spaced connectors 14 that are resiliently oriented to press outward and away from each other to engage the complementary shaped recesses provided in ribs (not shown) ) of the cartridge and disposable blade 16. The blade cartridge 16 can be held in place by a simple pressure action where the connectors 14 deform inwards and click in positive engagement with the ribs of the cartridge 16. When it is desirable to replace the cartridge 16, a user can press on a release button 54 provided on the underside of the cable 12 using thumb pressure, the pressure button 54 being connected to the connectors 14 by an internal lever system (not shown), which causes the connectors 14 move towards each other, thus disengaging the cartridge 16. Conveniently, the push button 54 is provided in a location that corresponds to the user's thumb, in use, p allowing a cartridge 16 to be held in place and removed by holding the handle 12 with one hand and the cartridge 16 with the other.
    [0048] The blade handle 12 illustrated in the drawings can be used in any of the three modes as illustrated schematically in figures 8, 9 and 10.
    [0049] In figure 8, blade 10 is being used in "mode 1" for shaving "in the direction of the hair", in which case fingers 45 are inserted into the recesses in the shape of C 21 so that the parts 46 of the tips of the fingers engage with the first curved recess 36 and so that the wings 26 make intermittent contact with the back of the finger 48. By the fold of the fingers 45, the blade cartridge 16 can be moved to inscribe an arcuate path with respect to to the skin being shaved 50 in a generally downward motion (as illustrated by the arrow 51 in figure 8).
    [0050] In figure 9, blade 10 is being used in "mode 2" to shave "against the hair", in which case fingers 45 are inserted into the C-shaped recesses so that the 46 parts of the tips fingers engage with the wings 26 and so that the curved finger engagement surface 24 makes intermittent contact with the back of the finger 48. In that case, by straightening the fingers 45, the blade cartridge can be moved to inscribe a arcuate path with respect to the skin being shaved 50 in a generally upward motion (as illustrated by the arrow 53 in figure 9).
    [0051] In situations where a very close shave is needed, or where precise definition is required, for example, along the edges of a beard, mustache or sideburn, the user can use the blade handle 12 in "mode 3 ", as illustrated in figure 10, which is a modification of" mode 1 ". In mode 3, the user slides his fingers 45 forward on the main body part 12 so that the fingertip parts 46 rest on the raised plateau part 38, or the raised plateau part 38 and the rear edge 42 of the blade cartridge 16. Mode 3 provides a more direct connection between the user's fingers 45 and the blade cartridge 16 allowing for a close or very close shave.
    [0052] Figures 11 to 15 illustrate a second embodiment of a blade according to the invention. For the sake of brevity, identical reference signs were used with respect to figures 11 to 15 to identify characteristics identical to those previously described with respect to figures 1 to 10.
    [0053] In figures 11 to 15, the second embodiment of a razor blade 10 according to the invention comprises a razor blade 12 which is detachably attached to a disposable razor cartridge 16 by a connector 14. The cable blade 12 of the second embodiment comprises a main body part having a generally flat central screen part 20 which serves as a grip by which the handle 12 can be grasped, in use, between two fingers of a user's hand (not shown) . A first edge 22 of the central web part 20 extends substantially transversely from the center of a first curved finger engagement surface 24 and a pair of wing parts 26 extends substantially transversely outwardly in opposite directions , from the opposite edge 28 of the screen part 20.
    [0054] As best illustrated in figure 12, the main body part 12 has a cross-section generally in the shape of an I defining a pair of recesses in the shape of a C 21, back to side, to receive the fingertips (not illustrated). The internal surfaces of the main body part 18 are provided with a high friction rubber insert 32, which is formed by a simultaneous, two-pass injection molding process. The rubber insert 32 provides a resiliently deformable or conformable surface that improves the comfort of the blade handle and that reduces slippage from the user's fingers (not shown) when wet and / or soapy. To facilitate this, the rubber insert 32 comprises several sets of substantially parallel ribs 33 that project from its surface. It will also be noted, from Figure 13 in particular, that the rubber insert 32 and the ribs are formed so as to wrap around the edges of the lower fingertip engagement surfaces in order to provide, in use, grip for the thumb 71 to the user thumb part 73, which facilitates the gripping and manipulation of the blade 10, in use.
    [0055] The first curved finger engagement surface 24 is symmetrical around the center line of the screen part 20 and each side has a more rear edge 34 that slopes downwards (as illustrated in the drawing) from the central screen 20. The first finger engagement surface 24 extends forward from that edge 34 and dips to form the first curved recess that is shaped to substantially conform to the shape of a user's fingertip portion before elevating to form a part high plateau 38 ending at a front edge 40 adjacent to the blade cartridge 16. In the illustrated embodiment, the height of the plateau part 38 corresponds to the height of the rear edge 42 of the blade cartridge 16 for reasons to be explained below. Plateau part 38 is also provided with a set of transverse ribs 35 formed on the high-friction rubber insert to reduce the relative slip of the blade handle 12 and the user's fingertips in use.
    [0056] The wings 26 are also symmetrical around the center line of the screen part 20 and each wing has a more rear edge 44 that tilts upwards (as illustrated in the drawing) from the center screen 20. The wings 26 extend forward from its rear edge 44 and are slightly curved, as best seen in figure 12, to substantially conform to the shape of the top of the user's fingertip, with it being noted that the wings 26 end at a distance from the blade 16 to allow the user's fingers (not shown) to project forward, through a space 43 provided by the user, and to the rear edge 42 of the blade cartridge 16.
    [0057] The blade cartridge 16 is connected to the cable 12 by a connector 14 comprising a male part 15 projecting backwards from the rear of the cartridge, which engages with a female part 17 projecting forward from the front edge of the blade handle 12. As can be seen in figures 13, 15 and 16, the male part 16 comprises a plastic projection that is integrally formed with the main body 19 of the blade cartridge 16. The male projection comprises a bifurcated end that allows that the two vertically spreading tines 61 of the projection 15 deform resiliently towards each other as they are pushed into the female connector part 17. The female connector part 17 comprises a receiving recess generally in the form of C 63 for the male part 15 which positively engages the same as the two parts are fitted by impulse or pressure. The receiving recess, generally C-shaped, has a tapered inlet 65 to guide the forked ends 61 of the male part 15 towards each other as the cartridge 16 is snapped into position, leading to a wider part 67 into which the forked ends 61 of the male part 15 can expand to hold the cartridge 16 in position. The female part 17 is also manufactured as an integral part of the main body part of the blade handle 12.
    The forked ends 61 of the male part 15 additionally comprise a pair of vertical projections 69 which engage the partitions of the female part 15 of the connector 14 to inhibit or prevent the relative lateral sliding of the blade cartridge 16 and the handle 12, and to restrict the movement of the cartridge 16 with respect to the cable 12. The amount of relative movement allowed can be determined by the proper selection of spaces between the various parts of the male and female parts of the connector 14.
    [0059] The provision of a forked end for one of the connector parts provides the appearance of two effects: first, the cartridge can positively engage in engagement with the cable as the splayed tines of the forked end are deformed to fit in the recess for receiving the female part; and secondly, the deformation of the tines allows the cartridge to articulate with respect to the handle, but does not return to a central position when the articulation force is removed by the action of the tines by pressing outward into the C-shaped receiving recess.
    [0060] The main body part of the blade handle 12 and the main body part 19 of the cartridge 16 are both made from injection-molded polypropylene, which is a resiliently deformable material. As such, the connection 14 between the cable 12 and the cartridge 16 can flex in different directions, thus allowing a limited amount of relative movement, in use, between the cable 12 and the cartridge. Such a configuration allows the orientation of the cartridge 16 to conform to the plane of the shaving action, thus guaranteeing a good contact between the blades 21 of the cartridge 16 and the root of the hair being shaved.
    [0061] It will be noted that the construction of the connection between cartridge 16 and cable 12 of the second embodiment of the invention is simpler than illustrated with respect to the first embodiment. By the integral formation of the male and female connector parts of a resiliently deformable material with the main body parts of the cable and cartridge, it is possible to obtain a detachable articulated interconnection without the need for moving parts, which greatly simplifies the manufacture of the blade 10, reduces the likelihood of failure, and makes the blade easier to use.
    [0062] Alternative modalities of the invention, as described with reference to figures 1 to 10 above, make use of an articulated connection between the cable 12 and the cartridge 16 to obtain the same or similar effect. More preferably, the amount of relative movement is restricted, either by end stops or by the resilience of the components, so that the cartridge 16 is restricted, to a desired point, against free movement with respect to the handle 12.
    [0063] The cartridge 16 of the blade 10 is illustrated in detail in figures 14 and 15, from where it can be seen that the cartridge 16 is made of four parts, that is, a main body part 19, a pair of removal blades 21 and a cover 23. The main body part 19 is provided with a rubberized coating 25 that serves to pad the cartridge 16 as it slides, in use, over a user's face. The blades 21 are held in place by the cover 23, which comprises a curved face part 27 that allows the cartridge 16 to be oriented against the user's skin at a desired angle, and a pair of limb parts 29 that extend through the openings in the main body part 19 to secure the blades 21 to the main body part 19. The ends of the members 29 are welded or cast to prevent the cover 23 from separating from the main body part 19.
    [0064] As can be seen from figure 14 in particular, the rear part of the main body part of the cartridge 16 comprises a pair of openings with partition 31 whose positions correspond to the front edges of the blades in front of the cartridge 16. In a known blade cartridge, this partition has parallel sides and / or is partially blocked by cross elements, which can lead to blocking of the hair partition during shaving. However, in the invention, partition openings 31 are significantly more open, providing a clean path for water to flow through and around the cartridge, to allow hairs to be rinsed more easily. As shown in Figure 14 in particular, the partitions with 31 have a cross-section generally V-shaped to facilitate rinsing of cut hairs from the cartridge using water. It will also be noted that the illustrated embodiment does not have any crossed elements partially obstructing the openings with partition 31 and that the cartridge 16 is spaced from the cable 12 by the connector 14, thus greatly facilitating the cleaning of the cartridge 16 in use.
    [0065] The second mode of the blade can be used in any of the three modes described above. The blades 21 of the cartridge 16 are oriented to face in opposite directions so that a user can operate the blade 10 against the direction of the hair without having to invert the cable (as shown in figure 9) and reinsert their fingers in the cable.
    [0066] Perceptibly, the general shape of the main body part 12 is designed to be ergonomic and intuitive to use, that is, it is designed to be immediately apparent from the visual inspection of how the cable 12 should be used. Furthermore, since the user has more control and more direct control over the position and movement of the blade cartridge, the connector 16 does not necessarily need to provide an articulated connection between the cable 12 and the blade cartridge 16, which simplifies its construction.
    [0067] Cable 12 is preferably manufactured from a lightweight and durable plastic material, such as acrylonitrile-butadiene styrene (ABS), polyethylene (PE), polypropylene (PP), despite other materials, including metals, compounds, etc. can be used efficiently. The advantages of the lightweight and small cable construction include: that is, the weight can be reduced compared to a conventional blade cable making it feel "lighter" in use; reduced volume meaning that it is easier to store and transport; and a general reduction in the use of material and / or cost in its manufacture and / or disposal at the end of its useful life.
    [0068] The invention is not restricted to the specificities of the above modality, which is merely illustrative. For example, the shape, dimensions and configuration of the cable, the way in which the blades / blade cartridge are connected to the cable, the position of the push button, the materials of manufacture, etc., can be changed without distancing from the invention.
    权利要求:
    Claims (23)
    [0001]
    1. Blade handle (12) comprising: a main body part (18), characterized by the fact that: first and second spaced fingertip engagement surfaces (24, 26) are adapted to be coupled with opposite sides of the user's fingertips; a grip part (20) is inserted between the fingertip engagement surfaces (24, 26); and a connector (14) for connecting, in use, the main body part (18) to a blade cartridge (16), where the connector (14) is disposed adjacent to the front edge (40) of the first engaging surface fingertip (24); wherein the gripping part (20) is transverse to the finger engaging surfaces (24, 26) such that the cross section of the main body part (18) is I-shaped; wherein the first fingertip engagement surface (24) extends forward from a rearmost edge (34) and dips to form a first curved recess (36) which is shaped to conform to the shape of a cushion from the user's finger tip and increases to form an enlarged reveal portion (38) on a front edge (40) adjacent to the connector (14); and where the first and second fingertip engagement surfaces (24, 26) define a space or an opening (43) in the blade handle (43) adjacent to the connector (14), in which the space is adapted for allow, in use, the user's finger or fingers to protrude beyond a front periphery of the blade handle to engage a rear edge (42) of the blade cartridge (16).
    [0002]
    2. Blade characterized by the fact that it comprises a blade handle (12), as defined in claim 1, and a blade cartridge (16), in which the blade cartridge (16) and the handle (12) are connectable detachable form to each other.
    [0003]
    3. Blade according to claim 2, characterized by the fact that the blade cartridge (16) comprises one or more blades (21) having an elongated cutting edge oriented, in use, at right angles to the geometric axes longitudinal fingers of a user (45) when inserted into or grasping the cable (12).
    [0004]
    4. Blade or blade handle (12) according to any one of the preceding claims, characterized (a) by the fact that the first and second spaced finger engaging surfaces (24, 26) are adapted, in use, to they can be engaged with opposite sides of a plurality of the user's fingers (45).
    [0005]
    Blade or blade handle (12) according to any one of the preceding claims, characterized in that a first of the finger engaging surfaces (24) comprises first and second parts of the finger engaging surface (24, 26) spaced.
    [0006]
    6. Blade or blade handle (12) according to claim 5, characterized in that a first of the finger engaging surface parts (24, 26) is located proximal to the connector (14).
    [0007]
    7. Blade or blade handle (12) according to claim 5 or 6, characterized in that a first of the finger engaging surface parts (24, 26) is located above and behind a rear edge ( 42) of the blade cartridge (16).
    [0008]
    8. Blade or blade handle (12) according to any one of the preceding claims 5 to 7, characterized in that the first and second parts of the finger engagement surface (24, 26) are located, when observed at from the side, at different levels.
    [0009]
    Blade or blade handle (12) according to any one of the preceding claims, characterized in that it additionally comprises a resiliently deformable element disposed on one or both finger engagement surfaces (24, 26) and / or on one or both sides of the grip part (20).
    [0010]
    10. Blade or blade handle (12) according to claim 9, characterized by the fact that the resiliently deformable element is manufactured from a high friction material.
    [0011]
    11. Blade or blade handle (12) according to claim 9 or 10, characterized in that the resiliently deformable element extends around an edge of at least one of the fingertip engaging surfaces (24 , 26) to form a thumb grip on one edge of the handle.
    [0012]
    Blade or blade handle (12) according to any one of claims 9 to 11, characterized in that the resiliently deformable element comprises one or more sets of raised projections or projections (33) forming gripping surfaces.
    [0013]
    13. Blade or blade handle (12) according to any one of the preceding claims, characterized in that the connector (14) comprises relatively movable coupling projections adapted to engage, in use, coupling projections of complementary shape or recesses in the blade cartridge (16), where the engagement projections are operable to move relative to each other by a push button, where the push button is located on the first finger engagement surface (24) in a opposite side of it to the finger latch surface part.
    [0014]
    14. Blade or blade handle (12) according to claim 13, characterized by the fact that the location of the push button corresponds, in use, to the location of a user's thumb when the first and second fingers of the a user are inserted between the finger engagement surfaces on opposite sides of the grip part (20).
    [0015]
    Blade or blade handle (12) according to any one of claims 1 to 14, characterized in that the connector (14) comprises a male part (15) comprising a forked end (61) adapted for engagement positive with a receiving recess usually C-shaped (63) of a female part (17).
    [0016]
    16. Blade or blade handle (12) according to claim 15, characterized by the fact that the C-shaped receiving recess (63) comprises a tapered entrance (65) to guide the bifurcated ends (61) of the male part (15) towards each other as the male part (15) is pressed into the female part (17), the tapered inlet (65) leading to a wider part within which the forked ends (61 ) of the male (15) part can expand to retain the male (15) and female (17) parts in situ,
    [0017]
    17. Blade or blade handle (12) according to claim 16, characterized in that the forked ends (61) of the male part (15) additionally comprise a vertical projection (69) adapted to engage with a partition of the female part (17) of the connector (14).
    [0018]
    18. Blade or blade handle (12) according to any one of claims 15 to 17, characterized in that one or both male and female parts (15, 17) are integrally formed with the handle (12) or blade cartridge (16).
    [0019]
    19. Blade or blade handle (12) according to claim 18, characterized in that one or both male and female parts (15, 17) are integrally formed with a resiliently deformable part of the handle (12) or blade cartridge (16).
    [0020]
    20. Blade according to any one of claims 2 to 19, characterized in that the blade cartridge (16) for a blade comprises a main body part (18) having at least two hollow openings with partitions (31) extending from a front surface of the same to a rear surface of the same, at least one blade (21) located on or towards the front of the cartridge (16) providing two or more cutting edges, each cutting edge being aligned with one of the said openings with partitions (31), and a cover to retain the blade or blades in the main body part (18), where the openings with partitions (31) have a cross section that is wider in or in the direction of the rear of the cartridge (16) than in or towards the front of the cartridge.
    [0021]
    21. Blade, according to claim 20, characterized by the fact that the blade cartridge (16) comprises two or more blades, at least two of the blades being oriented to face in opposite directions.
    [0022]
    22. Blade according to claim 20 or 21, characterized in that the blade cartridge (16) further comprises a rubberized coating arranged in at least part of the main body part (18).
    [0023]
    23. Blade according to any one of claims 20 to 22, characterized in that the blade cartridge (16) additionally comprises a curved face part.
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    同族专利:
    公开号 | 公开日
    EP2753461A1|2014-07-16|
    GB201115491D0|2011-10-26|
    CA2848232A1|2013-03-14|
    AU2012306069A1|2014-04-24|
    GB201310294D0|2013-07-24|
    MX352033B|2017-11-07|
    IL231415D0|2014-04-30|
    GB2509346A|2014-07-02|
    KR102053057B1|2019-12-06|
    RU2014113545A|2015-10-20|
    SG11201400473PA|2014-08-28|
    CN103945996A|2014-07-23|
    US20140290066A1|2014-10-02|
    BR112014005436A2|2017-04-04|
    KR20140089348A|2014-07-14|
    GB2509346B|2016-04-13|
    GB2495073A|2013-04-03|
    GB2495073B|2013-08-14|
    MX2014002853A|2014-09-15|
    JP2014526293A|2014-10-06|
    EP2753461B1|2019-05-08|
    WO2013034902A1|2013-03-14|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-04-14| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-07-21| B09A| Decision: intention to grant|
    2020-12-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/09/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    GB1115491.1|2011-09-08|
    GB1115491.1A|GB2495073B|2011-09-08|2011-09-08|Razor handles|
    PCT/GB2012/052176|WO2013034902A1|2011-09-08|2012-09-05|Razors and razor handles|
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