Patent Application
20230166420
This application claims the benefit of Korean Patent Application No. 10-2021-0167664 filed on Nov. 29, 2021, the contents of which are all hereby incorporated by reference herein in their entirety.
The disclosure relates to a razor assembly, a razor handle, and a razor cartridge, and more particularly to a razor assembly, a razor handle, and a razor cartridge, by which a shaving plane is improved.
A razor assembly, known as a wet razor, includes a razor cartridge and a razor handle. The razor cartridge includes a plurality of blades, thereby forming a shaving plane. The razor cartridge is detachably coupled to the razor handle, and thus replaceable by a user as necessary.
The shaving quality of the razor is affected by various factors such as the arrangement, shape, thickness, etc. of the blades. Therefore, the razor is being researched and developed to have an improved structure that causes fewer wounds, cuts, etc. and gives a user a comfort of use while providing excellent shaving performance to cope with various user environments. However, a conventionally proposed razor has problems in that the size increases or the structure becomes complicated to improve the performance, and has limitations in providing the improved performance within a limited size.
Documents of Related Art
Korean Patent Publication No. 2013-0125538A (Nov. 19, 2013)
An aspect of the disclosure is to provide a razor assembly, a razor handle, and a razor cartridge, which can improve shaving performance to cope with various environments and give a comfort of use to a user while providing a compact structure.
According to an embodiment of the disclosure, there is provided a razor assembly including: a razor cartridge including a plurality of blades including cutting edges, and a blade housing accommodating the plurality of blades in a longitudinal direction; and a handle coupling with the razor cartridge, and including a head, an interposed element provided at a first side of the head, and a grip extended from a second side of the head, the interposed element being accommodated inside the razor cartridge and interposed between the plurality of blades.
According to an embodiment of the disclosure, there is provided a razor handle including: a head forming a portion to which a razor cartridge is coupled; an interposed element provided at a first side of the head, inserted in the razor cartridge when coupling with the razor cartridge, and interposed between the plurality of blades; and a grip extended from a second side of the head.
According to an embodiment of the disclosure, there is provided a razor cartridge including: a blade housing; and a plurality of blades including cutting edges and longitudinally arranged in the blade housing, the blade housing includes a shaving plane formed with a first area in which some among the plurality of blades are arranged, a second area in which others among the plurality of blades are arranged, and an opening formed between the first area and the second area and extended in a longitudinal direction to accommodate an interposed element provided in a handle when coupling with the handle.
Hereinafter, a razor assembly, a razor handle, and a razor cartridge according to an embodiment of the disclosure will be described in detail with reference to the accompanying drawings. In the following description, a positional relationship between elements is based on the accompanying drawings in principle, but is separately defined as necessary.
In the accompanying drawings, a structure according to the disclosure may be simplified for convenience of description, or may be exaggerated as necessary. However, the disclosure is not limited to such a simplified or exaggerated structure, but may be embodied with various additional, changed or omitted elements.
Further, in terms of describing elements in the following embodiments, an element ‘including’ or ‘having’ sub-elements is construed as an element that may include another sub-element other than the described sub-elements.
The razor handle 100 includes a grip 110 forming a body, and a head 120 to which the razor cartridge 200 is coupled.
The grip 110 refers to a portion to be gripped by a user, which is extended to have a predetermined length from a second side of the head 120 and forms the body of the razor handle 100.
The head 120 is provided at one end of the grip 110, so that the razor cartridge 200 can be selectively coupled to the head 120. The head 120 includes a body portion 121, a head coupling portion 123 to couple with the cartridge 200, and an interposed element 122 shaped protruding from the body portion 121.
The body portion 121 of the head 120 forms the body of the head 120. In
Further, the head coupling portion 123 refers to an element for coupling with the razor cartridge 200, and is provided at the first side of the body portion 121. The head coupling portion 123 couples with a cartridge coupling portion 213, and various coupling structures such as a hook structure, a fitting structure, etc. may be used for the coupling between the head coupling portion 123 and the cartridge coupling portion 213. Although it is not illustrated in the accompanying drawings, the head 120 may further include a handling portion for allowing a user to release the coupling between the head coupling portion 123 and the cartridge coupling portion 213.
The interposed element 122 is provided as a member protruding from the first side of the head 120, and inserted in the razor cartridge 200 when coupling with the razor cartridge. Regarding the interposed element 122, more detailed descriptions will be made below with reference to separate drawings.
As shown in
Meanwhile, the razor cartridge 200 includes the plurality of blades 220, a blade housing 210, and a housing cover 230 and performs the shaving operation while being in contact with a user's skin surface.
The blade 220 is made of steel or the like rigid material to cut body hair as exposed to a shaving plane. Each blade 220 is disposed inside the razor cartridge 200 in a longitudinal direction corresponding to the lengthwise direction of the blade 220. The plurality of blades 220 are sequentially arranged inside the razor cartridge in forward and backward directions (hereinafter, a portion that comes into contact with skin first at a razor stroke will be referred to as a frontward portion, and a portion that comes into contact with the skin later will be referred to as a backward portion), thereby forming the shaving plane.
The blade 220 includes a base portion 221, a curved portion 222 and a cutting edge 223 (see
The blade housing 210 refers to an element for forming the body of the razor cartridge 200 and supporting the plurality of blades 220, and includes a housing frame 211, the supporting portion 212, and the cartridge coupling portion 213. For example, the housing frame 211 has a frame structure for forming the outer appearance of the razor cartridge 200, and is internally formed with an opening through which body hair cut by the blade 220 is discharged. The supporting portion 212 refers to an element for supporting the plurality of blades 220, is formed at longitudinal lower opposite portions of the housing frame 211, so that the plurality of blades 220 can be accommodated inside the razor cartridge 200 in the longitudinal direction. The supporting portion 212 has a structure in which the base portion 221 of each blade is embedded and supported, and may employ various guide structures such as a slit, a groove, a projection, etc. The cartridge coupling portion 213 couples with the head coupling portion 123 to thereby fasten the cartridge 200 to the head 120, and may employ various coupling structures corresponding to the head coupling portion 123.
The housing cover 230 refers to an element for preventing the plurality of blades 220 supported in the blade housing 210 from being removed. The housing cover 230 is installed at an upper side of the blade housing 210, and covers at least a partial area of the blade housing 210. For example, the housing cover 230 covers the area including the longitudinal opposite sides of the blade housing 210, and the plurality of blades 220 may be fitted between the supporting portion 212 of the blade housing 210 and the housing cover 230.
The shape of the housing cover 230 may be varied depending on the shape of the blade housing 210. For example, the housing cover 230 may be shaped like a quadrangular frame, a central portion of which is opened, to fully cover the outer circumference of the blade housing 10, or may be shaped like a clip to cover the longitudinal opposite end portions of the blade housing 210.
Although it is not additionally illustrated in
The razor cartridge 200 includes the plurality of blades 220 sequentially arranged in the forward and backward directions. Further, when the razor cartridge 200 is mounted to the razor handle 100, the interposed element 122 of the razor handle 100 is accommodated in the razor cartridge 200 and interposed between the plurality of blades 220. Therefore, in the shaving plane formed on the top surface of the razor cartridge 200, the blades are not continuously arranged in the forward and backward directions, but discontinuously arranged as divided by the interposed element 122.
Specifically, as shown in
As shown in
If only the plurality of blades are successively arranged on the shaving plane like those of a conventional razor, the plurality of blades increases pressure while continuously passing through the same position on the skin surface, thereby cause a user to experience discomfort. On the other hand, when the noncutting area (i.e., the third area c) formed by the interposed element 122 according to this embodiment is disposed between the cutting areas (i.e., the first and second areas a and b), the pressure applied to the skin surface by the blades 220 is temporarily released or reduced while passing through the noncutting area c, thereby having an advantage of giving a good feeling of use to a user.
Further, as the skin contact portion 122a of the interposed element 122 forming the noncutting area c between the cutting areas comes into contact with skin, the skin is stretched again in the stroke direction and improved in the contact during shaving, thereby reducing wounds, cuts, etc. and improving shaving performance.
Further, the cutting areas of the shaving plane are spaced apart by the interposed element 122, and it is therefore improved to cope with various angles of the skin surface while passing through the interposed element 122 even when curved skin is shaved, thereby enhancing shaving performance for various and complex shaving surfaces.
To realize the shaving plane with the interposed element 122, the razor cartridge 200 and the interposed element 122 may be formed as a single body. However, in this case, there are disadvantages in that the structure and the manufacturing process of the consumable razor cartridge 200 are complicated and thus costs increase. Further, the cut body hair between the blade 220 and the interposed element 122 is not likely to be discharged properly. On the other hand, the interposed element 122 according to an embodiment is provided in the razor handle 100 and exposed to the shaving plane when coupled to the razor cartridge 200, so that the structure of the cartridge 200 can be simplified to thereby reduce costs, and the cut body hair can be discharged through the opening, which is formed when the razor cartridge 200 is removed, to thereby have an advantage of easy cleaning.
Below, the structure of the razor cartridge 200 and the interposed element 122 according to an embodiment will be described in more detail with reference to
As shown in
Further, the third area c of the blade housing 210 refers to a space in which the interposed element 122 is accommodated, and forms the opening 240 extended in the longitudinal direction when not coupled to the razor handle 100. The opening 240 may be designed to have a length in the longitudinal direction and a width in the transverse direction by taking the shape of the interposed element 122 into account.
Specifically, the longitudinal length of the opening 240 formed in the blade housing 210 may correspond to the longitudinal length of the interposed element 122 or may be slightly longer than the longitudinal length of the interposed element 122 for easy insertion. In this case, the interposed element 122 may be designed to have a length correspond to the longitudinal length of each blade 220, or may be shorter than the longitudinal length of the blade 220 in consideration of the length of the blade 220 to be embedded in the supporting portion 212.
Further, the opening 240 provided in the blade housing 210 is designed to have a width in the forward and backward directions in consideration of the transverse width of the interposed element 122, and a span between the interposed element 122 and the adjacent blade 220.
In this case, taking a proper distance of the noncutting area into account to improve the shaving performance, the forward and backward width d of the opening 240 may be more than twice the span S1 or S2 between a pair of adjacent blades (e.g., a pair of blades in the first area a or a pair of blades in the second area b). Here, the span refers to a distance between the edges of adjacent blades forming a pair.
Further, as shown in
Specifically, according to this embodiment, the razor cartridge 200 may have a longitudinal length C1 ranging from 39 to 57 mm, and a forward and backward length C2 ranging from 15 to 21 mm. Further, the interposed element 122 may have a longitudinal length E1 ranging from 30 to 37 mm, and a transverse length E2 ranging from 1.8 to 3.6 mm. In this case, the opening of the blade housing 210 may have a longitudinal length ranging from 30 to 37 mm, and the forward and backward length d ranging from 5 to 9 mm.
Further, the span S1 between the pair of blades 220 positioned in the first area a may range from 0.2 to 3.0 mm, and more specifically range from 0.5 to 2.0 mm. The second span S2 between the pair of blades 220 positioned in the second area b may range from 0.2 to 3.0 mm, and more specifically range from 0.5 to 2.0 mm. Further, the front span S3 of the interposed element 122 may range from 0.2 to 5.0 mm, and more specifically range from 0.5 to 3.0 mm. The rear span S4 of the interposed element 122 may range from 0.1 to 5.0 mm, and more specifically range from 0.5 to 3.0 mm. Further, a front span S5 of a front blade, i.e., a distance between the cutting edge of the blade 220 most adjacent to the front guard member 231 and the front guard member 231 may range from 0.1 to 3.0 mm, and more specifically range from 0.3 to 1.2 mm. Further, a rear span S6 of a rear blade 220, i.e., a distance between the cutting edge of the blade 220 most adjacent to the rear cap 232 and the rear cap 232 may range from 0.2 to 5.0 mm, and more specifically range from 0.5 to 3.0 mm.
However, such numerical values based on the design of the razor cartridge 200 and the interposed element 122 are merely examples, and may be variously modified according to the use and design of the razor assembly.
Referring back to
Although an embodiment of the disclosure has been described above with reference to
Below, an alternative embodiment in which some features are modified or added as compared to those of the foregoing embodiment will be described by way of example with reference to
Therefore, as shown in
For example, as shown in
For example, one end of the interposed element 122 may be hinged to the body portion 121 of the head 120, and the interposed element 122 may be pivotable with respect to the body portion 121 of the head 120 by using a hinge connector as the pivoting shaft 131. In this case, the razor cartridge 200 is provided to be pivotable integrally with the interposed element 122, and therefore more dynamically operates during shaving because the distance between the shaving plane and the pivoting shaft is shorter than that of the embodiment shown in
Further, the head 120 of
Meanwhile,
For example, the razor handle 100 shown in
For example, the electric element 142 may be provided as a heater to heat the skin contact portion 122a of the interposed element 122. Thus, it is possible to give a user a good feeling of use during contact with skin, or control the temperature of skin or body hair to improve the shaving performance and prevent skin damage.
Alternatively, the electric element 142 may be provided as a motor or the like vibration element, and make the skin contact portion 122a of the interposed element 122 vibrate. Thus, it is possible to have a massage effect on the surface of skin during shaving.
Alternatively, the razor handle 100 shown in
Although various embodiments have been described above with reference to
Further, the embodiments shown in
According to the disclosure, the shaving plane, of which the cutting areas are separated and partitioned by the interposed element, is provided, thereby having advantages of improving the shaving performance in various shaving environments, giving a user a good feeding of use, and enabling safe shaving.
Further, the interposed element is provided in such a way of being inserted in the opening of the razor cartridge, thereby having advantages of simplifying the structure of the consumable cartridge and reducing production costs.
In addition, the interposed element exposed to the shaving plane is provided in the razor handle, thereby having advantages of implementing various additional functions through the interposed element in the body space of the handle.
Although few embodiments of the disclosure have been described above in detail, the disclosure is not limited to these embodiments. It will be appreciated that various changes or modifications can be made in the disclosure by a person having ordinary knowledge in the art, to which the disclosure pertains, without departing from the scope of the disclosure of which technical features are defined in the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2021-0167664 | Nov 2021 | KR | national |
