巴西专利BR112013032485B1 shaver or epilator cartridge

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SUMMARY "SHAVING OR SHAVING APPLIANCE WITH SKIN CONTACT ELEMENT" This description refers to a cartridge of 5 shavers or shavers (10) that has a compartment (16), a shield (40) located in a front part (18) of the compartment and a cover (42) located in a back part (20) of the compartment. A skin contact element (50) is arranged in compartment 10 between the bulkhead and the lid. A skin contact plane (Ps) defines a plane (P1A) tangential to the bulkhead and the skin contact element, and a plane (P2A) tangential to the skin contact element and the cover. One or more blades (12) are located between the bulkhead and the skin contact element 15, with each blade having a cutting edge (12 ') located at a distance y1 between 70 µm and 300 µm and in a a1 angle between 20 ° and 45 ° below the plane of contact with the skin. One or more blades are located between the skin contact element and the lid, 20 each blade having a cutting edge located at an angle a2 above or below the skin contact plane, (...) .
公开号:BR112013032485B1
申请号:R112013032485-6
申请日:2012-06-20
公开日:2021-01-19
发明作者:Daren Mark Howell；Andrew Martin Whittingham
申请人:The Gillette Company；
IPC主号:

专利说明:

FIELD OF THE INVENTION
[001] This invention relates to razor or epilator cartridges, and more particularly to a razor or epilator cartridge that has at least one skin contact element. BACKGROUND OF THE INVENTION
[002] Many razors or shavers for shaving or wet shaving on the market today have one or more shaving or shaving blades (many having three to six shaving or shaving blades) inside the razor cartridge or shave that are operationally attached to a handle, some shavers or shavers are disposable and some have a reusable handle. Shaving or shaving cartridges with multiple blades are described, for example, in US Patent No. 2005 / 0039337A1 published on February 24, 2005, and such a shaving or shaving cartridge is marketed as a shaving or shaving appliance Five-blade Fusion ™ by The Gillette Company.
[003] Although a multi-blade structure provides improved shaving or epilation closer to the skin, it is possible that, in general, some performance problems still exist. First, users may experience some discomfort during shaving or waxing. Second, shaving or waxing is still a relatively slow and inefficient process due to "lost" hair (hair that escapes the blades) and the difficulty of shaving or waxing in problem areas like the neck. Many shavers or shavers have a substantial amount of lost hair (for example, hair that is not cut at all or hair that is not cut close to the skin or on the skin line), despite the volume of hair that is cut.
[004] In addition, it has been shown that some areas (for example, neck, chin and / or face) are particularly difficult to shave or shave. In general, these areas are close to the skin, which are often oriented in different directions. These hairs close to the skin may be close, flat or level against the skin. In many instances, the user must adopt different shaving or waxing techniques during a single act of shaving or shaving to cut the various different types of hair.
[005] As shown in Figure 1A, a blade 2 cuts the hair more precisely when the edge of the blade 4 penetrates the hair at an angle substantially perpendicular to its growth direction. In typical cartridges, in which blades 2 are positioned at an angle of about 21 ° with respect to a plane tangential to the points of contact with the skin on the front and back of a cartridge (typically, the bulkhead and the lid), this occurs when a person shaves or shaves in the direction of hair growth. Shaving or waxing in the direction of hair growth is generally considered more comfortable than shaving or waxing in the opposite direction to hair growth. However, when shaving or waxing is done in the direction of hair growth, there is a chance that some hair will be lost, particularly those that are close to the skin or that grow in a less than ideal direction. Consequently, some users also shave or shave themselves in the opposite direction to hair growth, as shown in Figure 1B. Shaving or shaving in the opposite direction of hair growth allows the hairs to be close to the skin by being lifted by the blades and repositioned for an effective cut. However, when a person shaves or shaves in the opposite direction to hair growth using a cartridge as described above, the hair is forced back and rotated against its growth direction until it is positioned at an angle where the blade edge can penetrate no hair - for example, when the blade is substantially perpendicular to the hair. As the hair is rotated, the skin 6 behind the hair is bulged. This way, after the edge of the blade cuts through the hair, there is a chance that the edge of the blade will penetrate the bulging skin behind the hair, causing pain and irritation.
[006] A reference to the prior art, entitled Inter-Blade Guard and Method of Manufacturing Same, Serial No. 11 / 150,744 filed on June 10, 2005, attempts to increase comfort by reducing the bulging of the skin on the front of a blade providing inter-blade bulkhead elements arranged on each blade. However, the benefit obtained with such interlayer elements applies when shaving or waxing is done only in the direction of hair growth. Consequently, no consideration is given to the different shaving or waxing habits that a user must employ during a single shave or shave.
[007] Thus, there is still a need to optimize the management of skin and hair (for example, comfort and efficiency) in shaving or shaving cartridges and at the same time maintaining or improving the attributes of shaving or waxing, as proximity. SUMMARY OF THE INVENTION
[008] The invention features a razor or shaving cartridge that comprises a compartment, a shield located on the front of the compartment, a cover located on the rear of the compartment, a skin contact element arranged in the compartment between the shield and the cover, a skin contact plane defined by a tangential plane to the bulkhead and the skin contact element and a tangential plane to the skin contact element and the cover, one or more blades located between the bulkhead and the skin contact element, each of said blades having a cutting edge located at a distance y1 between 100 μm and 300 μm and an angle α1 between 20 ° and 45 ° below the plane of contact with the skin, one or more blades located between the contact element with the skin and the lid, each one of the said blades having a cutting edge located at an angle α2 above or below the plane of contact with the skin, with α2 being smaller in magnitude that α1. BRIEF DESCRIPTION OF THE DRAWINGS
[009] Although the present specification ends with claims that show particularly and distinctly claim what is considered to be the basis of the present invention, it is believed that the present invention will be better understood by the following description, made in conjunction with the accompanying drawings , in which equal references are used to designate substantially identical elements, where:
[010] Figures 1A and 1B schematically illustrate the interaction between a blade edge and the hair when shaving or waxing is done in the direction of hair growth and in the direction opposite to hair growth, respectively;
[011] Figure 2 shows a razor or shaver including a skin contact element of the present invention;
[012] Figures 3A and 3B schematically show a cross section of an embodiment of the present invention;
[013] Figure 4 schematically shows a cross section of an alternative embodiment of the present invention;
[014] Figures 5A to 5N are seen in perspective of possible modalities of skin contact elements according to the present invention;
[015] Figure 5O is a top view of a plurality of teeth in a skin contact element according to the present invention;
[016] Figure 5P is a perspective view of Figure 5O;
[017] Figure 5Q is a top view of a possible embodiment of a skin contact element with teeth according to the present invention;
[018] Figure 5R is a cross-sectional view of various skin contact elements in contact with the skin according to the present invention;
[019] Figure 6 is a perspective view of an alternative embodiment of a skin contact element according to the present invention;
[020] Figure 7 is a perspective view of yet another alternative fashion of a skin contact element according to the present invention;
[021] Figure 8 is a perspective view of yet another alternative embodiment of a skin contact element according to the present invention. DETAILED DESCRIPTION OF THE INVENTION
[022] The invention is applicable to shaving or shaving cartridges in general, which are used in a wet shaving or shaving system.
[023] Figure 2 shows a wet shaving or shaving device 8 formed by a cartridge 10 attached to a handle 14. The razor or shaving cartridge 10 is formed by a compartment 16 that has an anterior part 18, a rear part 20 and an opposite first and second side wall 22, 24 disposed transversely to, and between, the front and rear part of the cartridge. A skin contact element 50 is located between the front and rear of the cartridge and extends between the opposite side walls. The skin contact element 50 defines a first blade array 30 located between the front of the cartridge and the skin contact element and a second blade array 32 located between the skin contact element and the back the cartridge. At least one blade 12 having a cutting edge 12 'is provided on each of the first and second blade arrays, the cutting edges of each blade on the first or second blade array are directed towards the front of the cartridge.
[024] An area of anterior skin contact, typically a bulkhead 40, is located on the front of the cartridge, and an area of posterior skin contact, typically a cap 42, is located on the rear of the cartridge. In general, the bulkhead 40 is provided on the front of a cartridge to increase the friction between the cartridge and the skin being shaved or shaved. This increase in friction extends the skin in front of the blades, reducing the bulging of the skin on the anterior part of the blades and, consequently, reducing the likelihood of skin irritation. In some embodiments, the screen is designed to support or align the hair during the shaving or waxing process. Similarly, the cap is generally known to be a minor friction element located at the rear of the cartridge, allowing the skin to slide past the rear of the cartridge and at the same time providing support for the skin. In some embodiments, the cap provides lubrication, smooth sliding, or other skin control. It will be understood by those skilled in the art that in an alternative modality, the respective positions of the bulkhead and the cover can be inverted. In addition, in one of the modalities, both the shield and the lid can be formed separately in the compartment and mounted directly on the handle of the razor or shaver.
[025] In shaving or shaving cartridges currently available on the market, a plane of skin contact across the entire length of the cartridge is defined as the tangential plane to the bulkhead and the lid. Such cartridges typically have three or more blades, with the blade in the primary position being the one closest to the bulkhead. The skin is more extended in the portion immediately adjacent to the shield so that the load on the blades during shaving or waxing is the least for the blade in the primary position. In contrast, the skin bulges into the cartridge so that the load is the largest on the blade closest to the lid. This means that the risk that a blade will stick to the skin instead of the hair is greater at the back of a cartridge.
[026] In the present invention, the skin contact plane (PS) from the front to the back of the cartridge is formed by a first matrix plane P1A along the entire length of the first matrix of blades 30 and a second matrix plane P2A. The first matrix plane is tangential to the anterior skin contact area (typically the bulkhead) of the cartridge and to the skin contact element. The second matrix plane is tangential to the skin contact element and the posterior skin contact area (typically the cap) of the cartridge.
[027] In the present invention, the skin contact element substantially reduces the amount of bulging of the skin over the entire length of the cartridge compared to cartridges currently available on the market by reducing the distance between the skin support structures within the cartridge. The skin contact element redefines the skin contact plane in the intermediate area of the cartridge, thus creating the effect of two separate cartridges in one. The inventors of the present invention adapted the blade geometries in each of the two blade arrays to optimize the effectiveness of shaving or waxing.
[028] It is a known fact that the variation in the angle of a blade significantly affects the way the hair is cut. For example, increasing the angle of a blade edge below the plane of skin contact generally decreases the cutting force required when shaving the hair in the direction of a shaving or shaving cartridge pass. However, this blade with a greater angle is more likely to cause small incisions and cuts in the skin when the edge of the blade comes into contact with the skin at a more aggressive angle. In contrast, the comfort of shaving or waxing can be increased by decreasing the angle between the edge of a razor and the plane of contact with the skin, but this can have a negative impact on the proximity / efficiency of shaving or waxing. Redefining the skin contact plane, as described here, allows multiple blade arrays with different characteristics to be present in the same cartridge.
[029] Figures 3A and B show an embodiment with two blades 12 in the first slide array 30 and two blades 12 in the second slide array. It will be understood by those skilled in the art that one or more than two slides could be located in any of the slide arrays. For example, there may be one, two, three or four slides located in the first slide array. Similarly, there may be one, two, three or four slides located in the second slide array.
[030] As shown in Figures 3A and B, the blades located in the first matrix of blades are positioned with their cutting edges facing the bulkhead at an angle α between 20 °, 25 ° or 30 ° and 40 ° or 45 ° below the plane of skin contact. The blades located in the second blade array are positioned with their cutting edges facing the skin contact element at an angle between 15 °, 10 ° or 5 ° below (-15 °, -10 ° or -5 °), in line with, and 5 °, 10 ° or 15 ° above (+ 5 °, + 10 ° or + 15 °) of the skin contact plane. In this way, the blades in the first blade matrix cut hair with a lower cutting force, while the blades in the second blade matrix cut hair more comfortably.
[031] It is also known that the distance from the edge of a blade from the plane of contact with the skin has an impact on the proximity of shaving or waxing. The edge of a blade located close to or in the plane of contact with the skin will provide a closer shave or epilation than a blade located far from the plane of contact with the skin. However, the proximity of a blade to the plane of contact with the skin increases the risk of contact between the edge of the blade and the skin. In the present invention, the blades located in the first slide matrix have blade edges located at a distance of between 70 μm, 150 μm or 200 μm and 250 μm, 300 μm or 350 μm below the first matrix plane. In some embodiments, at least the blade closest to the bulkhead has a blade edge located 70 μm below the first matrix plane. The slides located in the second slide matrix have blade edges located at a distance d2 between 70 μm or 50μm below (-70 μm or - 50 μm) from the second matrix plane, in the second matrix plane (0 μm) to (+ ) 100 μm, 200 μm, 300 μm, 400 μm and 500 μm above the second matrix plane. In some embodiments, at least the blade closest to the skin contact element is in line with the second matrix plane. In the modalities with more than one slide in the first slide array, the slide closest to the cover is located 200 μm above the plane of contact with the skin.
[032] With this arrangement of blades with different angles in the first and second dies, it is possible to contemplate different needs for shaving or waxing inside the same cartridge. For example, when shaving or waxing is done in the direction of hair growth, the blades on the first blade array engage the individual hairs at an angle substantially perpendicular to the length of the hair. As the cutting edges of the blades in the first blade matrix are positioned at a distance from the plane of contact with the skin (or the first matrix plane), the edges are likely to cut the shortest hairs without cutting them to the skin level. In contrast, when shaving or waxing is done in the direction of hair growth, the blades in the second blade array either do not engage the hair, or "scrape" the hair. A scraped cut occurs when the edge of the blade cuts through one side of a hair and, instead of making a straight cut from one side to the other, the blade cuts diagonally across the wire, leaving one side of the hair longer than the other. other side. Thus, it can be noted that when shaving or waxing is done in the direction of hair growth, the different blade arrays interact with the hair in different ways, resulting in a more comfortable shave or epilation than with hairs. razors or shavers currently available on the market, but in one that may not cut the hair so close to the skin.
[033] When shaving or waxing is done in the opposite direction to hair growth, the blades in the first blade array engage only with hairs that have a length that extends beyond the d1 distance from the cutting edge. the plane of skin contact. When the cutting edges of the blades of the first matrix engage with the hair that grows in the opposite direction to the normal direction, the hair can be forced back and rotated in the direction of shaving or epilation, resulting in the presence of skin immediately behind the bulging hair. . As the cutting edges in the first matrix are located below the plane of contact with the skin, it is less likely, compared to the razors or shavers currently available on the market, that the cutting edges will engage with the skin, thereby reducing the chance of causing small incisions and cuts. In contrast, the cutting edges of the blades on the second blade array tend to engage with the hairs at an angle substantially perpendicular to the length of the hairs, thus resulting in a precise cut of hairs that grow in the opposite direction. This way, the hairs are not pulled and this reduces the likelihood of the skin bulging behind the hair. As the cutting edges are located in the plane of contact with the skin or in a position adjacent to the plane, the hairs are cut at the level or close to the skin. This results in a close but still comfortable shave or epilation.
[034] Thus, in general, when a user shaves or shaves in the direction of hair growth or in the opposite direction, he / she can enjoy a shave or epilation that is at least comparable in terms of proximity to the hair. shaving or shaving cartridges currently available on the market, but with a significant increase in comfort levels.
[035] In modalities with more than one blade within the first or second blade array, the respective blades can be positioned with their cutting edges at different angles or distances from the plane of contact with the skin. For example, when two or more blades are provided in the first blade array, the cutting edge of the blade adjacent to the bulkhead may have a greater angle to the plane of contact with the skin compared to subsequent blades. In that regard, and as described above, the skin bulges further into a cartridge as the distance between a blade and the skin supporting element (e.g., the bulkhead) increases. The chance of a cutting edge penetrating the skin increases with blades that are positioned further away from the bulkhead. The decrease in the angle of the secondary blades reduces the discomfort caused by a blade when the load on it reaches its maximum value.
[036] Figure 4 shows an embodiment of a cartridge that has three blades 100 with 100-edged blades in the first blade array. The blade closest to the bulkhead (the primary blade) is positioned with its edge of the blade at an angle of approximately 40 ° below the plane of contact with the skin. In contrast, the blades in the secondary and tertiary positions are positioned at an angle of approximately 25 ° below the plane of contact with the skin. The blade angle is decreased at a point inside a cartridge where the load on the blade is at its maximum, thus resulting in a more comfortable shave or epilation. It will be understood by those skilled in the art that, in an alternative mode (not shown), the blades in the secondary and tertiary positions could have successively decreasing angles in relation to the primary blade. In the modality shown in Figure 4, the distance d1 between the blade edges and the skin contact plane remains substantially the same for the primary, secondary and tertiary blades. It will be understood by those skilled in the art that in alternative modalities, the distance d1 between the blade edges and the plane of contact with the skin can progressively decrease from the primary blade to the tertiary blade, as occurs in the Fusion® series cartridges currently sold. In cases where the distance d1 decreases progressively, the increase in possible discomfort caused by the proximity of the edges of the secondary and tertiary blades to the skin is compensated for by the reduced angle, resulting in a closer, but still comfortable, shaving or epilation.
[037] Figure 4 also shows two slides 102 in the second slide array. As can be seen, the edge of the primary blade has an α2 angle of approximately 0, that is, the blade is located in the plane of contact with the skin. The secondary lamina has an angle of approximately 5 ° below the plane of contact with the skin. In addition, as shown in the modality of Figure 4, the primary blade has a distance d2 of approximately 100 μm above the plane of contact with the skin, while the secondary blade has a distance d2 of approximately 250 μm above the plane of contact with the skin. skin. The secondary blade is therefore able to cut the hair level or close to the skin and still maintain a good level of comfort due to the reduced angle between the edge of the blade and the plane of contact with the skin, in comparison with shaving or shaving currently available on the market. In addition, when the blade adjacent to the cap is required for shaving or epilation in a single pass, it is expected that a very small amount of hair will remain on the skin. This reduction in the amount of hair compensates for the slight decrease in discomfort caused by a relatively higher angle blade facing the rear of the cartridge.
[038] As shown in Figure 3B, the upper surface 60 of the skin contact element has a height H between 50 μm, 100 μm or 200 μm and 300 μm, 400 μm or 500 μm from the plane between the bulkhead and cap. This redefines the skin contact surface, thus allowing the different blade layouts in each of the first and second blade arrays described here. In some embodiments, the skin contact element is positioned so as to result in an β angle between 145 °, 155 ° or 160 ° and 170 °, 175 ° or 180 ° between the first matrix plane and the second matrix plane . Obviously, it will be understood by those skilled in the art that the angle between the first matrix plane and the second matrix plane is determined by the height of the skin contact element in relation to the plane between the bulkhead and the cover, and by the respective widths between the skin and the skin contact element and the skin contact element and the cover. For example, the angle between the first matrix plane and the second matrix plane is minimal when the height of the skin contact element is minimal and the distance between the cover and the bulkhead is maximum. In contrast, the angle between the first matrix plane and the second matrix plane is maximum when the height of the skin contact element is maximum and the distance between the cover and the screen is minimal.
[039] In some embodiments, the skin contact element can take the place of one of the blades in a standard cartridge, as shown in Figures 3A and B. Figure 3A shows the skin contact element positioned in the middle area cartridge at or near the standard 3-blade position. In this case, the skin contact element takes the place of one of the blades to divide the cartridge into two blade arrays. In alternative modalities, the skin contact element can take the place of a blade in a different position, for example, in the second or fourth position. In another alternative embodiment, the skin contact element can be positioned between existing blades, so as not to replace any of the blades, as shown in Figure 4.
[040] As described here, the skin contact element is a physical structure that generally does not cut hair or skin, but promotes contact, engages, controls, optimizes, shakes or extends a user's skin and / or hair , providing skin management (for example, reducing the bulging of the skin) and / or hair management (for example, hair alignment) during shaving or epilation and which can be of any type, size, shape or geometry including, but not limited to, having a portion or an upper surface with at least one feature selected from the group consisting of a plurality of projections that define at least one open groove, protuberances, elongated filaments, protrusions, fins, waves, curves, depressions , hair-like elements, one or more hook-like structures, one or more lubricating strips, one or more foams, one or more exfoliation materials, one or more shaving or hair removal aids, one or more r comb-like courses that have a plurality of teeth, any of the aforementioned, separate or interconnected resources, of constant or variable dimensions, or any combination thereof. The skin contact element of the present invention may have features that are, but are not limited to, vertical, curved, angled to the right, angled to the left, or angled toward a center and which can be flexible, rigid, or semi-rigid, can have flat or non-flat surfaces, can be contiguous, non-contiguous, endowed with a pattern, or any combination of these conditions.
[041] The skin contact element of the present invention can be produced from any type of material such as, but not limited to, polymeric, elastomeric material, thermoplastic elastomers, urethanes, olefins, rubbers, metals, or any combination of the same. Elastomers such as silicone, fluorosilicone, polyisopropene, polybutadiene, polyisobutylene, copolymers such as styrene-ethylene-butylene-styrene-based thermoplastic elastomer (SEBS), styrene-ethylene-propylene-styrene-based thermoplastic elastomer (SEPS), elastomer based on polyoxyethylene-polyurethane, or other polymers such as polyurethane, polystyrene and polyethylene, or rubbers such as acrylonitrile-butadiene, polyacrylate and natural rubber, or any combination thereof are also contemplated in the present invention. In addition, the material of the skin contact element may include modifications of one or more of the above materials (for example, polymers and rubbers and their composites) with other materials.
[042] If produced from a polymeric material or other elastomeric material, the skin contact element can be molded by injection. If produced from metal, such as aluminum or stainless steel, the skin contact element can be machined or shaped by tools.
[043] In addition, materials for a skin contact element may include textile or fabric materials, natural materials (eg, wood), or metals coated or integrated with elastomeric or plastic materials.
[044] The skin contact element of the present invention may additionally include materials with exfoliation capabilities (for example, as fine-grained abrasive coatings, chemicals, or surface texture) providing an exfoliation element, and may additionally include materials with chemicals that affect the skin or hair (for example, skin improvement, for example, but not limited to, lubrication or sensation, hair management, for example, but not limited to, minimization or extension of growth, conditioning), or any combination thereof.
[045] In addition, the skin contact element may include a lubricating body such as soap, an integrated sponge or foam or coated with shaving or waxing material or other chemicals, or an elastomeric structure similar to an integrated shield or coated with a layer of shaving or waxing aids or other chemicals. The foam can be a basic foam or sponge material or a gradient foam as presented in US patent application No. 12 / 350,286 entitled Fluid Delivery System and in US patent application No. 12 / 350,446 entitled Hair Removal with Fluid Delivery assigned to the assignee of the present invention.
[046] The term "shaving or hair removal aid", for use in the present invention, means any composition for use with skin and / or hair. Such compositions may include, but are not limited to, slippery agents such as hydrophilic polymers (for example, polyethylene / polystyrene oxide or PEO / PS), or agents for depilation, cleaning, cooling, inhibiting or accentuating hair growth, inhibiting hair growth. growth of microbes, inhibition of drag, inhibition of wrinkles, hydration, improvement of skin tone or condition, medicinal purposes or any combination thereof. The agents can include, but are not limited to, ingredients such as aloe, vitamin E, lanolin, perfumes or glycolic acids.
[047] The chemicals arranged in the skin contact element can interact with the chemicals found in the lid or shaving cartridge cover. In addition, the skin contact element of the present invention can serve as a wear indicator.
[048] Additionally, it should be noted that the skin contact element of the present invention can be used in any type of razor or shaving cartridge and, therefore, naturally in shavers or shavers for men and women .
[049] Now with reference to Figures 5A to 5Q, several designs of skin contact elements 50 are shown within the scope of the present invention. For example, in Figure 5A, a skin contact element 50a is shown showing an upper surface 51 that is substantially flat and a length 51a. The length 51a of the skin contact element can, in general, be approximately equal to the length of a conventional blade and can be about 35 mm to 40 mm or, desirably, about 36 mm. The upper surface 51 of the skin contact element 50a can be formed or shaped to take any shape. As shown in Figure 5A, element 50a may have an upper surface 51 which, when viewed in the direction of the width of the cartridge 12 of the bulkhead towards the cover, is slightly rounded or curved in a front portion 51d with a width, preferably up to about 0.2 mm, it is substantially flat in a central portion 51e with a width, preferably up to about 0.3 mm and then has an inclined or downward rear portion 51f with a preferably up to about 0.4 mm in width. The total width 51b of the skin contact element 50a is in the range of about 0.1 mm to about 1.2 mm and, preferably, is about 0.3 mm to about 0.5 mm. The height 51c of the skin contact element 50a can, in general, be about 1.5 mm. Another possible shape for the skin contact element 50a may be a shape similar to the outline or silhouette of a blade (not shown).
[050] The dimensions of the skin contact element 50a can, in general, preferably be within the same ranges as the dimensions of a conventional razor or epilator for ease of replacement in a blade array or conventional razor or shaving cartridge.
[051] In Figure 5B, tiny projections, protuberances or protrusions 52 are arranged on the upper or base surface 51 of the skin contact element 50, as shown. The present invention contemplates any number of projections 52 which can each be preferably similar in construction.
[052] The protrusions 52 can be about 50 to 150 and preferably about 50, depending on the spacing, by the length of the skin contact element 50, where the skin contact elements of the present invention can , in general, extend at approximately the same length as the blades. Each projection 52 may have a height measured from a base or surface 51 of the skin contact element 50 to the upper surface 52 'of the projection 52 from about 0.25 mm to about 1 mm, and preferably about 0.50 mm, and a width of about 0.15 mm to about 1 mm, and preferably from about 0.2 mm to about 0.3 mm, measured over the entire length of the anterior face 52c or rear face 52c ', and a length between about 0.3 mm and about 1.5 mm, and preferably about 0.8 mm, measured from a front face of the projection 52c to a rear face of the projection 52c 'or from an anterior edge 52b to a posterior edge 52b'. The protrusions or projections 52 can be very similar to those found in a conventional bulkhead structure or can be formed or arranged differently, as described, for example, in pending US patent application No. Shaft Razors And Cartridges, number serial number 12 / 542,141, filed on August 17, 2009, assigned to the assignee of the present invention, except that for the skin contact element 50b of the present invention, the projections 52 and the open grooves 52a described below would have to preferably smaller dimensions.
[053] With reference to an approximate view in Figure 5B, a detailed perspective view of two adjacent projections 52 is shown. An open groove 52a can be defined between the pair of projections 52 arranged side by side. As the width of a human hair can be about 0.10 mm, if the width of the open groove 52a is less than about 0.10 mm, and the hair can then get caught in the groove 52a and prevent other hairs. pass through the groove and reach the blade behind or after the skin contact element. If the width of the groove 52a is too small, the hair may prevent proper rinsing of the groove 52a and the blade (s) adjacent to the skin contact element. Shaving or waxing aids, hair, dirt and debris can get trapped inside the groove 52a and around the adjacent blades, thereby decreasing the blades' effectiveness in cutting hair. This can become even more critical for users who shave or shave infrequently, since the longer hair is more likely to get caught and more difficult to remove when rinsing. There is also the possibility that the longest hairs themselves obstruct the passage of additional hairs, shaving or hair removal aids, dirt and debris.
[054] The pair of adjacent projections 52, as mentioned, defines the groove 52a which is sized to trail the hairs with little or no interaction with the hair so that the hair is not captured, trapped or pulled by the projections 52, which can cause discomfort. Slots 52a and projections 52 are spaced to be as small as possible so as not to obstruct the passage of hair. Slots 52a and projections 52 are also sized to reduce bulging of the skin within the slots 52a and the pressure points at the ends of the slots 52a, which can occur if the projections 52a or the slots 52 are excessively spaced from each other. Bulging of the skin can lead to the edges of the blades (for example, in particular the blade 12d, not shown) by unnecessarily cutting the skin and resulting in discomfort. The relatively large number of projections 52 in relation to the length of the skin contact element 50b can serve to distribute the force applied to the skin by the cartridge 10, while the greater number of grooves 52a can also increase the number of hairs that pass through the skin. grooves 52a of the skin contact element, which can increase the number of hairs that are properly cut by the edge of the blade 13d of the blade 12d (not shown) for example, if the arrangement is made as shown in Figure 1, for example , of the present invention.
[055] Thus, an important benefit of the protrusions 52 disposed on the skin contact element 50b may preferably be the placement or feeding and alignment of the hair through the grooves 52a on the blade and / or blades behind the skin contact element 50b (for example, in Figure 1, blades 12d and 12e) which can preferably optimize efficiency. Additionally, the projections 52 can be used to massage or increase blood flow in the skin area.
[056] The groove 52a can be the same width between the front end portion 52b and the rear end portion 52b ', or the width of the groove can be tapered. The front end portion 52b of the groove 52a receives the hair and the rear end portion 52b 'of the groove feeds the hair to the blades at the rear of the cartridge (not shown) for cutting. The front end portion 52b may have a width W1, from about 0.1 mm to about 0.5 mm and, preferably, from about 0.20 mm. The rear end portion 52b 'may have a width W2, which is less than the width W1, to provide a tapered groove 52a for tapering the hair for the blade behind the skin contact element. The front end portion 52b of the groove 52a may have a chamfer or entry area (not shown) that tapers from the front end portion 52b to the rear end portion 52b 'to provide more efficient handling and passage of hair. .
[057] The pitch or spacing in the open grooves 52a between a first side surface 52d of one of the projections 52 and the next first side surface 52d 'of the adjacent projection in Figure 5B can be from about 0.20 mm to about 1 mm and preferably from about 0.2 mm to about 0.4 mm.
[058] Although not shown, the groove 52a may extend beyond the anterior face 52c of the adjacent projections 52 resulting in a slightly longer length of the groove than the length of the adjacent projections 52.
[059] The height of the projections 52 can be tapered or tilted up or down so that the height of the projections 52 close to the front end portion 52b of the grooves 52a can be greater or less than the height of the projections 52 in the direction of the rear end portion 52b 'of the grooves 52a. A slope or upward angled design can increase the resistance of the skin contact element 50b and can optimize hair tracking into the groove 52a. In general, the arrangement in Figure 5B placed in a razor or shaving cartridge can serve for short and long hair.
[060] The projections 52, as shown, are arranged so that the hair flows in the grooves 52a in a transverse direction in relation to the blades (for example, in the direction of the width of the cartridge 10, from the bulkhead 16 towards the cover 17). In addition to the described cross-sectional configuration, according to the present invention, the projections 52 may, if possible, also extend parallel to the cutting edges of the blades, in angles, in a zigzag, in "V", in a "fishbone" pattern or chess board, or in any combination of these patterns.
[061] Now with reference to Figure 5C, the skin contact element 50c is shown showing a repeated pattern of waves 53 or small ripples, ocean ripples or other similar patterns, arranged on its upper surface 51. The waves 53, as shown in the approximate view of Figure 5C, show a wave showing angle openings, preferably from 15 degrees to about 60 degrees, as shown at angle 53a and a pitch or spacing 53b of about 0.30 mm to about 0 , 80 mm, and preferably about 0.50 mm to about 0.60 mm. The height or depth of wave 53c can be in the range of about 0.20 mm to about 1 mm and, preferably, about 0.50 mm. The number of waves 53 can be in the range of about 50 to about 100 waves over the length of the skin contact element 50c and can preferably be about 75 waves.
[062] Depending on the angle opening and other dimensions of the waves 53, the configuration in Figure 5C installed in a razor or shaving cartridge can be suitably designed for short, close-to-skin hairs that can be "lost" by the bulkhead on the front of the cartridge.
[063] In Figure 5D, one or more projections 54 are shown on the skin contact element 50d of the present invention. The projections can be elements similar to protrusions or fins. The projections 54 can preferably be made of metal, plastic, or elastomeric materials. The projections 54 can be arranged in one or more rows or matrices that are parallel, perpendicular, misaligned, endowed with a pattern, angled (or any combination of these configurations) to the cutting edges of the blades. As shown in Figure 5D, the projections 54 are arranged in two rows 54a and 54a ', which extend along the length of the skin contact element 50d, and arranged with a plurality of open grooves 54b' between the projections to allow free passage of hair during shaving or epilation.
[064] Each protrusion-like element 54 may have a width 54b of about 0.10 mm to about 1 mm or, preferably, from about 0.4 mm to about 0.5 mm, and a height 54d from about 0.30 mm to about 1 mm or, preferably, from about 0.5 mm or 0.60 mm. The projections may have open grooves 54c with a width of about 0.15 mm to about 0.8 mm and, preferably, 0.20 mm, and a pitch or spacing 54c 'of about 0.25 mm to about 2.0 mm, more preferably about 0.60 mm.
[065] As shown, the projections 54 may have slightly rounded tips or curved upper surfaces 54 'although any shape for an upper surface 54' is contemplated in the present invention.
[066] In each row of projections 54, there may be about 50 to 80 projections 54 or, preferably, about 65 to 70 projections 54 arranged along the length 51a of the upper surface 51 of the skin contact element 50d. As described above in conjunction with the projections 52 in Figure 5B, the projections 54 can also be arranged (although not shown) with equal dimensions over the entire length 51a of the skin contact element 50d, or with variable dimensions (for example, tapering or decreasing widths or dimensions of the projections), or any combination thereof.
[067] As the projections 54 in Figure 5D have rounded or curved upper characteristics, they can provide a favorable skin load, and because they have two rows of projections 54, the hairs can, in theory, be raised or aligned more appropriately to be cut by the blades behind the skin contact element.
[068] In Figure 5E, a combination of fins-like elements 55 and a lubricating strip 56 is shown, each extending along the length of the skin contact element 50e. This bifurcated arrangement can be beneficial for a multistage cartridge, as described above in conjunction with Figure 4B, for example, where the skin contact element acts as a lubricant cap or strip on the first cartridge unit 10a, or first stage, and acts as a screen in the second cartridge unit 10b, or second stage. The fin-like elements 55 of the skin contact element 50e may be of the same or similar type as described above in conjunction with Figure 5D, or have slightly thinner dimensions and be more flexible. Lubricating strip 56 may comprise a material of any known type of lubricating strip and may, for example, include aloe, vitamin E, minerals or oils. The two portions 55 and 56 of the skin contact element 50e can be attached to each other by any known and desirable attachment method such as, but not limited to, seals, adhesives or other known mechanical means. If feasible, more than two portions can be attached to each other forming a skin contact element 50e of the present invention.
[069] An area or valley 57 is formed extending along the length 51a of the skin contact element 50f, as shown in Figure 5F, and may preferably include a material 57a as any type of composition or auxiliary shaving or hair removal equipment provided in the valley 57. The shaving or hair removal auxiliary material or material can preferably be secreted or exudated when the skin, hair, water or other fluid comes into contact with the skin contact element 50 providing improved control of skin flow during shaving or epilation.
[070] In Figure 5G, a combination of protrusions 52 and fins-like elements 55 are shown in several portions along the length of the skin contact element 50g. For example, the projections 52 of Figure 5B can be arranged in the central area 50g 'of the element 50g as shown in Figure 5G, while elements similar to fins 55 similar to those of Figure 5E are arranged in external portions 50g ”. This configuration can provide additional skin comfort or protection in areas closer to the edges of the blades in the 50g ”outer portions where fin-like elements are arranged and, at the same time, provide improved hair flow or control closer to the central 50g area. 'of the blades where the protrusions are arranged. It should be noted that the present invention contemplates any such combination of any type of skin contact elements.
[071] Figure 5H shows the skin contact element 50h with an exfoliation layer 58 disposed on its upper surface 51. This exfoliation layer can preferably comprise fine-grained abrasive coatings or surface texture capable of removing at least a portion of a layer of skin, for example, flakes or scales. In addition, the exfoliation layer 58 of the present invention can increase blood flow to an area of the skin or include ingredients capable of peeling off or flaking small portions of an upper layer of skin (e.g., removing dead cells).
[072] Figure 5I shows the skin contact element 50i as a sponge or foam 59 that may or may not be integrated with a shaving or hair removal aid as a lubricant. If integrated with a lubricant, the 50i element can provide improved gliding, increased skin flow and / or other improvements or skin protection while the skin moves smoothly over the 50i skin contact element. Such skin control or management may be desirable if the skin contact element 50i is positioned in the intermediate area of the cartridge, as shown in Figure 1, for example.
[073] Figure 5J shows the skin contact element 50j formed, preferably, as a modified or extended blade support produced from any material, but which advantageously comprises the same type of metal used conventionally for a support of blade. The downward pointing arrows in Figure 5J indicate the top-down charge of the skin contact element 50j and the blades 12a, 12b, 12d and 12e inside the cartridge 12.
[074] In the cross-sectional side view of Figure 5J shown in Figure 5K, the skin contact element 50j of the present invention can have any shape such as an L shape, a blade silhouette, or have an anterior edge, preferably , curved or round, or a hook-like structure 59, as shown in Figure 5K. The curved or hook-like structure 59 provides a smoother surface for skin contact as it moves beyond the skin contact element 50j, thereby improving user comfort.
[075] The present invention contemplates any viable structure for the modified blade support type of the skin contact element 50j. For example, as shown in Figure 5J, element 50j can be a unitary or simple element (for example, a part). Thus, a method of fabricating the skin contact element 50j may be to modify the blade holder and instead of welding a blade with a cutting edge on the upper surface of the blade holder, to extend the profile of the blade holder. Element 50j can also be coated with polytetrafluoro ethylene (PTFE) or other desirable coatings. Having a construction similar to that of a standard blade holder allows the 50j element to be handled properly by conventional razor or shaving cartridge equipment without the need or cost of modifying the equipment.
[076] Another method of fabricating such a skin contact element (not shown) may be to attach or attach a skin contact element (such as those described above with reference to Figures 5A to 5I) in a top area or upper part of a blade holder modified by welding, assembly or otherwise fixing the skin contact element to the blade holder portion (for example, by adhesive or mechanical or thermal means). This can be considered a two-piece modified blade support structure. For example, a blade holder may be extended to include or have arranged one or more fins-like elements or projections on its upper surface, forming an alternative type of modified blade holder, or a skin contact element within the scope of the present invention which may be able to feed or lift the hairs towards the blades behind the skin contact element. Accordingly, the skin contact element of the present invention can, if practical, include a modified one-piece or two or more piece blade holder. In any case, the skin contact element would not be a cutting element.
[077] One-piece and two-piece skin contact elements are shown in Figure 5L, which also shows an alternative embodiment of the present invention in which a skin contact element 154a or skin contact element 154b can have an upper surface formed as, or enlarged with, a type of comb, or comb-like features that have a plurality of teeth which may be rigid, preferably, but which may be flexible or semi-rigid or any combination thereof. The upper surface of the skin contact element 154a is shown showing a square edge 154a ', while the upper surface of the skin contact element 154b is shown showing a tapered edge 154b'.
[078] The skin contact element can be a two-piece set 155a or a one-piece set 155b. As shown in the blade array 152 of Figure 5L, the two-piece assembly 155a may preferably be located in the middle of the blade array 152 which has two blades 152a, 152b on the front and two blades 152d and 152e for the back of the skin contact element 154b, which is shown as a two-piece assembly 155a. The two-piece assembly of the skin contact element 154b can be produced in a similar manner to that of a standard blade set, since the comb-shaped skin contact element 154b preferably has a similar geometry to that of a standard razor and thus can be joined to a conventional razor support element 151 by laser welding or other techniques known to those skilled in the art of razors or shaving.
[079] The one-piece assembly 155b, also shown disposed in the center of the blade array 152, includes the square edge top surface 154a 'of the skin contact element 154a in contact with a user's skin surface and is formed as a single inclined element or as a modified blade holder, as described above in conjunction with Figures 5J to 5K.
[080] The two skin contact elements 154a and 154b can be considered 'fit' replacements for a standard blade set and blade holder.
[081] Now with reference to Figure 5M, another alternative embodiment of the present invention is shown in which the skin contact element 155c is shown showing a single inclined element 154c similar to the skin contact element with comb structure in a piece 155b of Figure 5L, except that the skin contact element 155c may preferably also include a rounded top surface 154c 'which contacts the skin surface. As described above, the skin contact element 155c can be considered a "fit" replacement for a standard blade assembly and blade holder, as shown at its central location in blade matrix 152.
[082] Figure 5N shows yet another alternative embodiment of the present invention in which the skin contact element 155d is shown as a single inclined element 154d with a rounded top surface 154d 'that comes into contact with the skin surface. However, the orientation shown is inverse to the orientation of the comb modes shown in Figures L and M. The opening 156 shown in the skin contact element 154d can be sized and shaped to allow the skin contact element 155d to be inserted. or easily slid over cartridge spring clips or the like during assembly.
[083] The inverted orientation of the combs in Figure 5N can preferably come into contact with the skin in a manner similar to that of other comb-shaped skin contact elements in Figures L and M. Because the skin contact 155d extends back to the posterior blade 152d, as shown in Figure 5N, the skin contact element 155d can preferably guide the hair all the way to the rear cutting edge better than in the modalities of Figures L to M, which show the comb feature far in front of the posterior blade 152d and may, in theory, therefore not adequately guide the hairs all the way to the posterior blade.
[084] This reverse orientation can additionally serve to maximize the radius of contact with the skin and guide the hair to the edge of the posterior blade. The contact radius will be as described in detail below. However, as described above, the skin contact element 155d can be considered a "fit" replacement for a standard blade assembly and blade holder, as shown by its location in the blade matrix 152.
[085] The skin contact elements provided with comb features described above with reference to Figures L to N can be, as described in conjunction with other types of skin contact elements, positioned close together (for example, about 50 μm or more) of the preceding blade 152b, or of the 152d blade that succeeds the skin contact element. In general, the rinsing intervals for the modalities in Figures L to N can have dimensions similar to the dimensions described above with reference to Figure 2. Similarly, the gaps, BTAs and exposure can be modified in a similar way as mentioned above in Figures 4D for example (for example, narrow gap, increase in BTA, negative exposure of the anterior blade), they can preferably provide an enhanced load at the tip of the blade on the skin and increase the number of hairs that are cut without damage to the skin.
[086] In accordance with the present invention, the desirable ranges of dimensions of the structural aspects of the comb or teeth of the skin contact elements are shown in more detail in Figure 5O. For example, the width of a tooth 162 of the skin contact elements shown above in Figures L to N, can preferably be in the range of about 100 μm to about 2,000 μm and is preferably of about 500 μm, and the width of the gap or open grooves defined between teeth 164 may preferably be in the range of about 100 μm to about 2,000 μm and is preferably about 500 μm. In general, the width of the gap 164 allows hair to pass freely during shaving or epilation. The depth of the gap (or tooth height) 166 can preferably be in the range of about 100 μm to about 2,000 μm and is preferably about 650 μm, while the gap step 168 that can be generally deduced by adding the combined width width 164 and tooth width 162 dimensions, it can preferably be in the range of about 200 μm to about 4,000 μm and is preferably about 1,000 μm. The total depth (or total height) that can include the depth of the gap 166 and a lower depth section 166a of the skin contact element can generally be roughly equal to that of a standard blade set, typically about 2.29 mm or about 0.09 inches. The length (or thickness) 165 of each tooth, as shown in Figure 5P, can be in the range of about 75 μm to about 250 μm and is still preferably about 150 μm.
[087] It should also be noted that, according to the present invention, any of the dimensions described here can be constant or variable along the length of the skin contact element.
[088] Now with reference to Figure 5Q, top views of various "comb" modalities are contemplated, but are not limited to the present invention. The orientation of the teeth in the skin contact element 172 can be straight or, in general, parallel to the direction of shaving or waxing. The orientation of the teeth in the skin contact element 174 can be angled to the right, in the skin contact element 176 can be angled to the left, and in the skin contact element 178 can be angled towards the center. Differences in orientation can provide benefits to areas of skin to be shaved or shaved. For example, angled orientations can optimize shaving or waxing (for example, efficiency) in areas that are difficult to shave or shave such as the neck, chin, knees, or armpits.
[089] Advantageously, the skin contact elements, arranged or expanded with combs on their upper surface, such as those described in Figures 5L, 5M and 5N, can, as in the modalities described above (for example, Figures 5B, 5D) also, preferably, serve to agitate the skin to loosen or release the hair trapped under the skin surface, or others by the skin close to the skin, align the hairs to the posterior blades, thus preventing the hairs from spinning out of the way , and preventing or reducing hair loss, as well as providing rinse benefits. These combs or comb-like features (for example, teeth) in the skin contact elements can preferably assist in aligning the hair and then release the hair in time for the next blade (or blades) to cut further hair, both in length and in quantity. In this way, efficiency is improved since these difficult to shave or shave areas can be treated more easily with the use of combs or other hair alignment features in a skin contact element. Additionally, by offering the ability to guide hair directly to the cutting blades, and increasing the amount of cut hair, skin contact elements with comb-like features (eg teeth) can generally optimize the tactile sensation of smoothness right after shaving or waxing.
[090] With reference to Figure 5R, various contact rays are shown for different skin contact elements of the present invention. Contact radii 182a, 182b and 182c are shown for skin contact elements (shown as similar to skin contact elements 155a, 155c and 155d, respectively), and represent the radius length of the contact "circle" formed by the upper surface of the skin contact element with the skin surface of a user 185. As can be seen, the contact radius 182a of the skin contact element 155a is, in general, the smallest and has to preferably less than about 25 μm, while the contact radius 182b of the skin contact element 155c is slightly larger and is preferably around 250 μm, and the contact radius 182c of the contact element with the 155d skin is the largest of the three shown and is preferably about 550 μm. Theoretically, with all other conditions remaining the same, in general, the smaller the contact radius, the greater the pressure on the skin, while, in general, the greater the contact radius, the lower the pressure on the skin. A higher pressure may be undesirable, since the user may find the operation to be excessively abrasive or rough, while a lower pressure may not classify or offer a tactile sensation as pleasant as some higher pressure alternatives. Thus, it may be advantageously necessary to have a balance between different types of skin contact elements and their contact radius in order to obtain the ideal pressure.
[091] Although the skin contact elements described so far are, in general, loaded or installed in the blade or groove positions from the top of the blade matrix or cartridge (for example, similar to the installation of a foil blade). shaving or shaving), the present invention is not limited to placing skin contact elements in conventional blade positions or blade grooves.
[092] Other methods of fabricating a skin contact element for installation within a sheet matrix will be presented below.
[093] The skin contact element of the present invention can, for example, be loaded onto the blade array 62 by means of at least one orifice, opening or groove 65a disposed on at least one side of the cartridge frame 65, as shown in Figure 6 where the skin contact element 64 is of a generally round shape, but can be of any shape, structure, or composition within the scope of the present invention. The orifice 65a can preferably be dimensioned and structured to allow the skin contact element 64 to be inserted effortlessly and, in general, kept in place within the blade matrix 62 and, consequently, inside the cartridge. razor or shaver 60.
[094] Until now, the skin contact element of the present invention has been described as an independent element or elements, isolated or separable, very similar to the razor or shaving blades themselves. Since the element of the present invention is a skin contact element without sharp edges, alternative methods for producing such skin contact elements in a razor or shaving cartridge may also be within the scope of the present invention. Such alternative embodiments of the present invention are described below.
[095] Now with reference to Figure 7, one of these alternative exemplary embodiments of the present invention is shown including at least one skin contact element 74 formed as a portion of the frame 75, as shown in close view of the frame 75 in Figure 7 For example, the frame 75 can be injection molded to include at least one skin contact element 74, preferably positioned longitudinally anywhere on the cartridge, as described above generically with reference to Figures 1 to 3. The element contact with the skin can also be attached to the frame by means of a pressure fitting or other known connection. The skin contact element 74 can be coupled to the frame 75 using other mechanical, thermal or chemical methods known to those skilled in the art. It should be noted that the skin contact element, although formed together with the frame, is not attached or integrated with a razor or razor blade. The skin contact element, despite being part of the cartridge frame, can be of any type and can, for example, include an upper surface of projections, protrusions or fins elements (not shown) of elastomeric material or other material .
[096] Additionally, in Figure 8, another alternative exemplary embodiment shows a skin contact element 84 formed as a portion of the clips 88a and 88b as a unitary structure 84a and, therefore, necessarily installed in the frame (or cartridge) when the clips are installed. Although not shown, more than one skin contact element can be formed as a portion of the clips, or the skin contact element can be formed as a portion of only one or the other clip 88a or 88b, respectively, of according to the present invention. This structure 84a can be produced by an element skilled in the art using the same methods as those used as conventional clips and can be machined, molded or formed by any practicable method.
[097] Although the skin contact element 74 can be formed as a portion of the frame 75 and the skin contact element 84 can be formed as a portion of the clips 88a, 88b, both being formed as part of one another shaving or shaving component, these elements are generally not fixed or integrated with any of the blades. The advantages of shaving or waxing attributed to the condition that there is at least one element of skin contact within the blade matrix remain unchanged.
[098] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension displayed as "40 mm" is intended to mean "about 40 mm".

权利要求:
Claims (10)
[0001]
1. A razor or shaving cartridge (10) comprising: a compartment (16); a bulkhead (40) located in an anterior part (18) of the compartment (16); a cover (42) located at a rear part (20) of the compartment (16); a skin contact element (50) disposed in the compartment between the bulkhead (40) and the cover (42); a skin contact plane (PS) defined by a plane (P1A) tangential to the bulkhead and the skin contact element, and a plane (P2A) tangential to the skin contact element and cover, where the razor or shaving cartridge (10) is CHARACTERIZED by: one or more blades (12) located between the bulkhead and the skin contact element, each of these blades having a cutting edge (12 ') located at a distance y1 between 70 μm and 300 μm and an angle α1 between 20 ° and 45 ° below the plane of contact with the skin; and one or more blades (12) located between the skin contact element and the cover, each of said blades having a cutting edge (12 ') located at an angle α2 above or below the plane of contact with the skin, with α2 being smaller in magnitude than α1.
[0002]
2. Shaving or shaving cartridge, according to claim 1, CHARACTERIZED by the fact that each of the said one or more blades between the skin contact element and the cap has a cutting edge located at a distance y2 between 50 μm below to 500 μm above the skin contact plane.
[0003]
3. Shaving or shaving cartridge according to claim 1 or claim 2, CHARACTERIZED by the fact that the at least one blade between the skin contact element and the lid has a cutting edge located at an angle α2 between +/- 15 ° in relation to the plane of contact with the skin.
[0004]
4. Shaving or shaving cartridge, according to any one of the preceding claims, CHARACTERIZED by the fact that it also comprises a plane between the bulkhead and the tangential cap to the bulkhead and the cap, with an upper surface (60 ) of the skin contact element is located between 50 μm and 500 μm above the plane between the bulkhead and the cover.
[0005]
5. Shaving or shaving cartridge, according to any one of the preceding claims, CHARACTERIZED by the fact that the tangential plane to the shield and the skin contact element intersects the tangential plane to the skin contact element and to the skin. cover at an angle θ between 145 ° and 180 °.
[0006]
6. Shaving or shaving cartridge, according to any one of the preceding claims, CHARACTERIZED by the fact that it comprises two or more blades between the bulkhead and the skin contact element, with the angle α1 between blade edges successive and the plane of skin contact decreases progressively from the blade adjacent to the bulkhead to the blade adjacent to the skin contact element.
[0007]
7. Shaving or shaving cartridge according to any one of claims 1 to 5, CHARACTERIZED by the fact that it comprises two or more blades between the shield and the skin contact element, with the α1 angle between the blade edges and the plane of skin contact is greater for the blade adjacent to the bulkhead.
[0008]
8. Shaving or shaving cartridge according to either of claims 6 or 7, CHARACTERIZED by the fact that the distance y1 between successive blade edges and the plane of contact with the skin is substantially the same for each of the said two or more blades.
[0009]
9. Shaving or shaving cartridge, according to any one of the preceding claims, CHARACTERIZED by the fact that it comprises two or more blades between the skin contact element and the lid, with the α2 angle between blade edges successive and the plane of contact with the skin progressively increases from the blade adjacent to the skin contact element to the blade adjacent to the lid.
[0010]
10. Shaving or shaving cartridge according to any one of claims 1 to 8, CHARACTERIZED by the fact that the distance y2 between successive blade edges and the skin contact plane progressively increases from the blade adjacent to the shaving element. contact with the skin up to the blade adjacent to the lid.

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同族专利:

公开号 | 公开日

WO2012177683A1|2012-12-27|

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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|

2020-06-02| B07A| Technical examination (opinion): publication of technical examination (opinion)|

2020-11-03| B09A| Decision: intention to grant|

2021-01-19| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP11170653.7|2011-06-21|

EP20110170653|EP2537649B1|2011-06-21|2011-06-21|Razor cartridge with skin contact element|

PCT/US2012/043225|WO2012177683A1|2011-06-21|2012-06-20|Razor cartridge with skin contact element|

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