Patent Publication Number: US-2021170615-A1

Title: Razor cartridge

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of earlier filing date and right of priority to Korean Patent Application No. 10-2019-0164111, filed on Dec. 10, 2019, the contents of which are incorporated by reference herein in its entirety. 
     TECHNICAL FIELD 
     The present disclosure relates to a razor cartridge. 
     BACKGROUND 
     The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. 
     In recent years, as a solution to reduce the strokes of the razor when shaving, there is an increasing demand for a razor cartridge in which a plurality of shaving blades are disposed at regular intervals (hereinafter, ‘multi-blade razor cartridge’). 
     The multi-blade razor cartridge may have a plurality of shaving blades disposed in a blade housing. The shaving blade may be supported by a blade mounting of the blade housing. In particular, the blade mounting may include a mounting base and a mounting protrusion extending from the mounting base, and the plurality of shaving blades may be supported by multiples of the mounting protrusion. 
     The multi-blade razor cartridge can achieve the effect of cutting body hair by a single stroke with a plurality of shaving blades. This allows the multi-blade razor cartridge to provide the user with a clean shaving by a small number of strokes. 
     On the other hand, since the multi-blade razor cartridge needs to arrange a plurality of shaving blades within the limited space of the blade housing, a space-efficient shaving blade arrangement is required. To this end, it is necessary to narrow the transverse interval between the mounting protrusions supporting the shaving blades. 
     However, it is difficult in the manufacturing process to narrow the transverse interval between the mounting protrusions to a certain degree or more on one mounting base. Accordingly, there is a need for a new blade mounting that can be easily manufactured while narrowing the transverse interval between the mounting protrusions. 
     SUMMARY 
     According to at least one embodiment, the present disclosure provides a razor cartridge including at least one shaving blade each including a base portion and an edge portion with a cutting edge, and a blade housing including a blade mounting configured to accommodate the at least one shaving blade in a longitudinal direction corresponding to a width direction of the blade housing. The blade mounting includes multiple mounting bases disposed to be spaced apart from each other in the longitudinal direction and at least one mounting protrusion protruding from each of the multiple mounting bases. The base portion of a shaving blade of the at least one shaving blade is supported by mounting protrusions protruding from different mounting bases among the multiple mounting bases. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a razor cartridge according to at least one embodiment of the present disclosure. 
         FIGS. 2A to 2C  are side views of a shaving blade according to some embodiments of the present disclosure. 
         FIG. 3  is a front view of the razor cartridge according to at least one embodiment of the present disclosure. 
         FIG. 4  is a cross-sectional view of the razor cartridge according to at least one embodiment of the present disclosure, taken in the direction IV-IV′ of  FIG. 1 . 
         FIG. 5  is a front view of a razor cartridge according to another embodiment of the present disclosure. 
         FIG. 6  is a perspective view of a razor cartridge according to yet another embodiment of the present disclosure. 
         FIG. 7  is a front view of the razor cartridge according to the yet another embodiment of the present disclosure. 
         FIG. 8  is a front view of a razor cartridge according to yet another embodiment of the present disclosure. 
         FIG. 9  is a front view of a razor cartridge according to yet another embodiment of the present disclosure. 
         FIG. 10  is a front view of a razor cartridge according to yet another embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     At least one embodiment of the present disclosure seeks to provide a razor cartridge including a blade mounting that is easy to manufacture while reducing the transverse interval between mounting protrusions. 
     Some exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings. In the following description, like reference numerals preferably designate like elements, although the elements are shown in different drawings. Further, in the following description of some embodiments, a detailed description of known functions and configurations incorporated herein will be omitted for the purpose of clarity and for brevity. 
     Additionally, alphanumeric code such as first, second, i), ii), (a), (b), etc., in numbering components are used solely for the purpose of differentiating one component from the other but not to imply or suggest the substances, the order or sequence of the components. Throughout this specification, when a part “includes” or “comprises” a component, the part is meant to further include other components, not excluding thereof unless there is a particular description contrary thereto. 
       FIG. 1  is a perspective view of a razor cartridge  10  according to at least one embodiment of the present disclosure. 
     In  FIG. 1 , only one shaving blade  110  is shown for the convenience of description. 
     As shown in  FIG. 1 , the razor cartridge  10  may include at least one shaving blade  110  and a blade housing  120 . 
     The blade housing  120  may receive at least one shaving blade  110  in the longitudinal direction. Here, the longitudinal direction refers to a direction along which the blade housing  120  is elongated. For example, in  FIG. 1 , the longitudinal direction is a direction parallel to the Y-axis. 
     At least one shaving blade  110  received on one side of the blade housing  120  may be maintained by a plurality of clips (not shown). 
     The blade housing  120  may include a cap  121 , a guard  123 , and a blade mounting  122 . 
     The cap  121  may be disposed at the rear of the shaving blade  110 , specifically, to be disposed on the top side of the blade housing  120  facing the cutting edge  1142  in  FIG. 2 . 
     Here, the front and rear of the shaving blade  110  are defined based on the shaving direction of the razor cartridge  10 . Accordingly, in  FIG. 1 , the front and rear of the shaving blade  110  are, respectively, in the positive X-axis direction and the negative X-axis direction with respect to the shaving blade  110 . 
     The guard  123  may be disposed in front of the shaving blade  110  on the upper surface of the blade housing  120 . 
     The guard  123  can stretch the skin in the shaving direction while shaving before the cutting of the body hair by the shaving blade  110 . 
     This can erect the user&#39;s body hair in a direction perpendicular to the user&#39;s skin surface, whereby the shaving blade  110  can cut the body hair more easily. 
     The blade mounting  122  may accommodate at least one or more shaving blades  110  in the longitudinal direction. Specifically, the blade mounting  122  may have multiple mounting bases  124 A- 124 C (or collectively  124 ) from which a plurality of mounting protrusions  126 A- 126 C (or collectively  126 ) is erected for supporting the at least one shaving blade  110 . The blade mounting  122  will be detailed with reference to  FIG. 3 . 
       FIGS. 2A to 2C  are side views of different types of the shaving blade  110  according to some embodiments of the present disclosure. 
     As shown in  FIG. 1  and  FIGS. 2A to 2C , the shaving blade  110  may include a base portion  112  and an edge portion  114 . 
     The base portion  112  may be an area on the shaving blade  110 , which is supported by a plurality of mounting protrusions  126 . 
     The edge portion  114  extends from the base portion  112  and may have a cutting edge  1142  at one end thereof. 
     The shaving blades  110  according to some embodiments of the present disclosure may be classified into various types of blades, depending on the shape and manufacturing method thereof.  FIGS. 2A to 2C  to be described below illustrate various types of shaving blades  110  according to some embodiment of the present disclosure. 
     As shown in  FIG. 2A , the first shaving blade  110 A may be an integral blade in which the base portion  112 A and the edge portion  114 A are integrally formed, a cutting edge  1142 A formed at one end of the edge portion  114 A. The base portion  112 A of the first shaving blade  110 A may include a bent region  116 A. 
     As shown in  FIG. 2B , the second shaving blade  110 B, unlike the first shaving blade  110 A, is a welded blade of which the edge portion  114 B is fixed by being welded on one side of the base portion  112 B. A cutting edge  1142 B is formed at one end of the edge portion  114 B. The base portion  112 B of the second shaving blade  110 B may include a bent region  116 B, similar to the first shaving blade  110 A. 
     A shown in  FIG. 2C , for the third shaving blade  110 C, like the first shaving blade  110 A, the base portion  112 C and the edge portion  114 C may be formed into an integral blade. A cutting edge  1142 C is formed at one end of the edge portion  114 C. 
     However, the base portion  112 C of the third shaving blade  110 C may not include a bent region, unlike the first shaving blade  110 C and the second shaving blade  110 B. Accordingly, the third shaving blade  110 C may have a substantially straight shape. 
     The shaving blades shown in  FIGS. 2A to 2C  are merely some of the various shaving blades according to the present disclosure. The shaving blade according to the present disclosure may have a configuration other than the shaving blades illustrated in  FIGS. 2A to 2C . 
       FIG. 3  is a front view of the razor cartridge  10  according to at least one embodiment of the present disclosure. 
       FIG. 3  illustrates only one shaving blade  110  for convenience of explanation, omitting the edge portion  114  thereof. 
     As shown in  FIG. 3 , the blade mounting  122  may include the multiple mounting bases  124  and mounting protrusions  126 . 
     The multiple mounting bases  124  may be disposed to be spaced apart from each other along the longitudinal direction, and the mounting protrusions  126  may be formed to protrude from the multiple mounting bases  124 . 
     In  FIG. 3 , the blade mounting  122  is shown to include three mounting bases  124 , but the present disclosure is not limited thereto. 
     For example, the blade mounting  122  may include two or four or more mounting bases  124 . 
     The mounting protrusions  126  protruding from each of the multiple mounting bases  124  may be disposed in a transverse direction perpendicular to the longitudinal direction. Here, the transverse direction refers to a direction in which the blade housing  120  extends over a shorter span. For example, in  FIG. 3 , the transverse direction is a direction parallel to the X-axis. 
     Specifically, the mounting protrusions  126  disposed on each mounting base  124  may be aligned along the transverse direction. 
     In  FIG. 3 , the mounting protrusions  126  disposed on each mounting base  124  are shown to be disposed collinearly along the transverse direction, but the present disclosure is not so limited. 
     For example, the multiple mounting protrusions  126  disposed on each mounting base  124  may be arranged in zigzags along the transverse direction, or they may be arranged out of alignment with each other. 
     Additionally, in  FIG. 3 , the transverse interval between the multiple mounting protrusions  126  is shown to be the same in all mounting bases  124 , but the present disclosure is not limited thereto. 
     For example, the transverse interval between the multiple mounting protrusions  126  may be configured to be different for each mounting base  124  and/or for each mounting protrusion  126 . 
       FIG. 4  is a cross-sectional view of the razor cartridge  10  according to at least one embodiment of the present disclosure, taken in the direction IV-IV′ of  FIG. 1 . 
     As shown in  FIGS. 3 and 4 , the base portion  112  of the shaving blade  110  may be supported by the mounting protrusions  126  protruding from different mounting bases  124 . 
     Each shaving blade  110  according to at least one embodiment is supported by each mounting protrusion  126  protruding from each mounting base  124 . 
     In other words, the shaving blade  110  according to at least one embodiment is not supported by two or more mounting protrusions  126  from one mounting base  124 , but it is supported by only one mounting protrusion  126  per mounting base  124 . 
     Accordingly, a transverse interval W of the multiple mounting protrusions  126  disposed on each mounting base  124  can be substantially wider than those between the conventional mounting protrusions. Specifically, transverse interval W between the multiple mounting protrusions  126  disposed on each mounting base  124  may be equal to or greater than transverse spacing S of the cutting edges  1142  of the plurality of shaving blades  110 . 
     Additionally, transverse interval W between the multiple mounting protrusions  126  disposed on each mounting base  124  may be equal to or greater than transverse width ‘L’ of the mounting protrusion  126 . 
     Here, transverse interval W between the multiple mounting protrusions  126  refers to the shortest linear distance between one mounting protrusion  126  protruding from one mounting base  124  and the neighboring mounting protrusion  126  next to the one mounting protrusion  126 . 
     The blade mounting  122  according to at least one embodiment of the present disclosure allows transverse interval W to be increased between the adjacent mounting protrusions  126  on one mounting base  124  by configuring the blade housing  120  to support a single shaving blade  110  with each mounting protrusion  126  protruding from each mounting base  124 . 
     It is generally impractical for one mounting base  124  to have the transverse interval between the mounting protrusions  126  reduced to a certain interval or shorter as dictated by the manufacturing process, and accordingly, the blade mounting  122  according to at least one embodiment of the present disclosure is advantageously easy to manufacture. 
     Meanwhile, transverse width ‘L’ of the mounting protrusion  126  may be 0.2 mm to 4.0 mm, preferably 0.38 mm to 1.28 mm. Additionally, transverse interval W between the multiple mounting protrusions  126  may be 0.3 mm to 5.0 mm, preferably 0.62 mm to 1.52 mm. Further, transverse interval S between the cutting edges  1142  may be 0.3 mm to 5.0 mm, preferably 0.5 mm to 1.4 mm. However, the present disclosure is not limited to these particular values or ranges. 
     The base portion  112  of the shaving blade  110  may be supported by the mounting protrusions  126  by making point contact, linear contact, or surface contact therewith. 
     The blade mounting  122  according to at least one embodiment can somewhat widen the transverse interval between the mounting protrusions  126  such that the mounting protrusion  126  can be configured in various ways. 
     Therefore, the mounting protrusion  126  according to at least one embodiment may have an advantageous shape for surface contact with the base portion  112  of the shaving blade  110 . The base portion  112  may be supported more firmly by the mounting protrusions  126  by making surface contact with the mounting protrusions  126 . 
     As shown in  FIGS. 1 and 3 , the base portion  112  of the shaving blade  110  may be supported by at least three mounting protrusions  126  along the longitudinal direction. 
     Specifically, the base portion  112  may be supported by at least three mounting protrusions  126  each protruding from at least three mounting bases  124  spaced apart from each other along the longitudinal direction. 
     More specifically, any one of one surface and the other surface of the base portion  112  may be supported by at least one mounting protrusion  126 , the other one of the one surface and the other surface of the base portion  112  may be supported by at least two mounting protrusions  126 . 
     In order for one shaving blade  110  to be supported in a fixed position on the blade housing  120 , a resultant force and a resultant moment acting on one shaving blade  110  need to be 0. 
     Accordingly, one shaving blade  110  according to at least one embodiment of the present disclosure may be securely seated on the blade housing  120  by being supported by at least three mounting protrusions  126 . 
     The mounting protrusions  126  may be formed by injection molding on the mounting base  124 , but the present disclosure is not limited thereto. 
     As shown in  FIG. 3 , the multiple mounting bases  124  may include a first mounting base  124 A, a second mounting base  124 B, and a third mounting base  124 C. 
     The blade mounting  122  may have multiple first mounting protrusions  126 A arranged on the first mounting base  124 A along the transverse direction. 
     The second mounting base  124 B may be spaced apart from the first mounting base  124 A along the longitudinal direction in one direction. The blade mounting  122  may have multiple second mounting protrusions  126 B arranged on the second mounting base  124 B along the transverse direction. 
     The third mounting base  124 C may be spaced apart from the first mounting base  124 A along the longitudinal direction in another direction. The blade mounting  122  may have multiple third mounting protrusions  126 C arranged on the third mounting base  124 C along the transverse direction. 
     The multiple first mounting protrusions  126 A may not be aligned with the multiple second mounting protrusions  1268  and with the multiple third mounting protrusions  126 C along the longitudinal direction. The multiple second mounting protrusions  1268  may be aligned with the multiple third mounting protrusions  126 C along the longitudinal direction. 
     In this case, any one of the one surface and the other surface of the base portion  112  of the shaving blade  110  may be supported by the first mounting protrusion  126 A, and the other one of the one surface and the other surface of the base portion  112  may be supported by the second mounting protrusion  1268  and the third mounting protrusion  126 C. 
     This allows the base portion  112  to be supported by at least three mounting protrusions  126 , and thereby the shaving blade  110  may be firmly seated on the blade housing  120 . 
     Different from the above embodiments as illustrated in  FIGS. 1 to 4 , the following second embodiment of the present disclosure illustrated in  FIG. 5  provides a blade housing that includes outer bases and outer protrusions. The following focuses on the distinctive features according to the second embodiment of the present disclosure, omitting a repetitive description of a configuration substantially the same as that of the aforementioned embodiments. 
       FIG. 5  is a front view of a razor cartridge  20  according to the second embodiment of the present disclosure. 
       FIG. 5  illustrates just one shaving blade  210 , omitting an edge portion thereof for convenience of explanation. 
     As shown in  FIG. 5 , the blade housing  220  may include a cap  221 , a guard  223 , blade mountings  222 , a plurality of outer bases  225 , and a plurality of outer protrusions  227 . 
     The cap  221  may be disposed rearwardly of the shaving blade  210 , and the guard  223  may be disposed in front of the shaving blade  210 . 
     The blade mountings  222  may receive at least one or more shaving blades  210  in the longitudinal direction. 
     The blade mountings  222  may include multiple mounting bases  224  and multiple mounting protrusions  226 . The multiple mounting bases  224  may be disposed to be spaced apart from each other in the longitudinal direction, and the multiple mounting protrusions  226  may protrude from each of the multiple mounting bases  224 . 
     The plurality of outer bases  225  may be disposed on both sides of the blade housing  220  along the longitudinal direction. Accordingly, the multiple blade mountings  222  may be disposed between the plurality of outer bases  225 . 
     The plurality of outer protrusions  227  may protrude from each outer base  225 . 
     The base portion  212  of the shaving blade  210  may be supported by the mounting protrusions  226  protruding from different mounting bases  224  and by at least two outer protrusions  227  protruding from one outer base  225 . 
     Specifically, one of one surface and the other surface of the base portion  212  of the shaving blade  210  may be supported by one mounting protrusion  226  protruding from any one of the mounting bases  224 , and the other one of the one surface and the other surface of the base portion  212  may be supported by one mounting protrusion  226  protruding from another mounting base  224 . 
     Further, both surfaces of the base portion  212  of the shaving blade  210  may be supported by at least two outer protrusions  227  protruding from one outer base  225 . 
     Therefore, the razor cartridge according to the second embodiment has the outer protrusions  227  disposed on both sides of the multiple mounting bases  224  and configured to support both surfaces of the base portion  212  of the shaving blade  210 , and thereby keeps the shaving blade to be more firmly seated in the blade housing  220 . 
     Different from the above embodiments as illustrated in  FIGS. 1 to 4 , the following third embodiment of the present disclosure illustrated in  FIGS. 6 and 7  provides outer bases and outer protrusions that are made of a plate. The following focuses on the distinctive features according to the third embodiment of the present disclosure, omitting a repetitive description of a configuration substantially the same as that of the aforementioned embodiments. 
       FIG. 6  is a perspective view of a razor cartridge  30  according to the third embodiment of the present disclosure. 
       FIG. 7  is a front view of a razor cartridge  30  according to the third embodiment of the present disclosure. 
       FIGS. 6 and 7  illustrate just one shaving blade  310  with an edge portion  314  for convenience of description. 
     Further,  FIG. 7  illustrates the shaving blade  310 , omitting the edge portion  314  for convenience of explanation. 
     As shown in  FIGS. 6 and 7 , the razor cartridge  30  may have a blade housing  320  that includes a cap  321 , a guard  323 , and a blade mounting  322 . 
     The cap  321  may be disposed rearwardly of the shaving blade  310 , and the guard  323  may be disposed in front of the shaving blade  310 . 
     The blade mounting  322  may receive at least one shaving blade  310  in the longitudinal direction. 
     The blade mounting  322  may include multiple mounting bases  324  and multiple mounting protrusions  326 . The multiple mounting bases  324  may be disposed to be spaced apart from each other along the longitudinal direction, and the multiple mounting protrusions  326  may protrude from each of the multiple mounting bases  324 . 
     The base portion  312  may be supported by mounting protrusions  326  protruding from different mounting bases  324 . 
     Specifically, a single shaving blade  310  may be supported by each mounting protrusion  326  protruding from each of the mounting bases  324 . For example, the base portion  312  of the single shaving blade  310  may be supported by a single mounting protrusion  326  protruding from a corresponding mounting base  324 . 
     The base portion  312  of the shaving blade  310  may be supported by at least three mounting protrusions  326  along the longitudinal direction. Specifically, the base portion  312  may be supported by at least three mounting protrusions  326  each protruding from at least three mounting bases  324  spaced apart from each other along the longitudinal direction. 
     More specifically, any one of one surface and the other surface of the base portion  312  may be supported by at least one mounting protrusion  326 , the other one of the one surface and the other surface of the base portion  312  may be supported by at least two mounting protrusions  326 . 
     The mounting base  324  and the mounting protrusions  326  may be made of a single plate. The mounting protrusions  326  may be formed by being bent from the mounting base  324 . 
     The thickness of the plate may be 0.20 mm to 0.50 mm, and the mounting protrusions  326  may have the same thickness as the plate. The thickness of the mounting protrusions  326  is approximately eight times the thickness of the injection-molded mounting protrusion. 
     Accordingly, the mounting protrusion  326  according to the third embodiment of the present disclosure may have a thickness suitable for making surface contact with the base portion  312  of the shaving blade  310 . The base portion  312  may be more firmly supported by the mounting protrusions  326  by making surface contact with the mounting protrusions  326 . 
     Different from the above embodiments as illustrated in  FIGS. 1 to 4 , the following fourth and fifth embodiments of the present disclosure illustrated in  FIGS. 8 and 9  provide a blade mounting including four mounting bases. The following focuses on the distinctive features according to the fourth and fifth embodiments of the present disclosure, omitting a repetitive description of a configuration substantially the same as that of the aforementioned embodiments. 
       FIG. 8  is a front view of a razor cartridge  40  according to the fourth embodiment of the present disclosure. 
       FIG. 8  illustrates just one of a plurality of shaving blades  410 , omitting an edge portion thereof for convenience of explanation. 
     As shown in  FIG. 8 , multiple mounting bases  424  may include a first mounting base  424 A, a second mounting base  424 B, a third mounting base  424 C, and a fourth mounting base  424 D. 
     In the first mounting base  424 A, multiple first mounting protrusions  426 A may be disposed along the transverse direction. 
     The second mounting base  424 B may be spaced apart from the first mounting base  424 A along the longitudinal direction in one direction. In the second mounting base  424 B, multiple second mounting protrusions  426 B may be disposed along the transverse direction. 
     The third mounting base  424 C may be spaced apart from the first mounting base  424 A along the longitudinal direction in another direction opposite the one direction. In the third mounting base  424 C, multiple third mounting protrusions  426 C may be disposed along the transverse direction. 
     The fourth mounting base  424 D may be disposed between the first mounting base  424 A and the second mounting base  424 B. Multiple fourth mounting protrusions  426 D protruding from the fourth mounting base  424 D may be disposed along the transverse direction. 
     The multiple first mounting protrusions  426 A may not be aligned with the multiple second mounting protrusions  426 B and with the multiple third mounting protrusions  426 C along the longitudinal direction. 
     The multiple second mounting protrusions  426 B may be aligned with the multiple third mounting protrusions  426 C along the longitudinal direction, and the fourth mounting protrusion  426 D may be arranged in parallel to the multiple first mounting protrusions  426 A along the longitudinal direction. 
     In this case, any one of one surface and the other surface of the base portion  412  of the shaving blade  410  may be supported by a first mounting protrusion  426 A and a fourth mounting protrusion  426 D, and the other of the one surface and the other surface of the base portion  412  may be supported by a second mounting protrusion  426 B and a third mounting protrusion  426 C. 
     This allows the base portion  412  to be supported by at least four mounting protrusions  426 A- 426 D (or collectively  426 ), and the shaving blade  410  may be firmly seated on the blade housing  420 . 
       FIG. 9  is a front view of a razor cartridge  50  according to the fifth embodiment of the present disclosure. 
       FIG. 9  illustrates just one of a plurality of shaving blades  510 , omitting an edge portion thereof for convenience of explanation. 
     As shown in  FIG. 9 , multiple mounting bases  524  may include a first mounting base  524 A, a second mounting base  524 B, a third mounting base  524 C, and a fifth mounting base  524 E. 
     In the first mounting base  524 A, multiple first mounting protrusions  526 A may be disposed along the transverse direction. 
     The second mounting base  524 B may be spaced apart from the first mounting base  524 A along the longitudinal direction in one direction. In the second mounting base  524 B, multiple second mounting protrusions  526 B may be disposed along the transverse direction. 
     The third mounting base  524 C may be spaced apart from the first mounting base  524 A along the longitudinal direction in another direction opposite the one direction. In the third mounting base  524 C, multiple third mounting protrusions  526 C may be disposed along the transverse direction. 
     In the fifth mounting base  524 E, multiple fifth mounting protrusions  526 E may be disposed along the transverse direction, and the fifth mounting base  524 E may be spaced apart from the second mounting base  524 B along the longitudinal direction such that the second mounting base  524 B is disposed between the first mounting base  524 A and the fifth mounting base  524 E. 
     The multiple first mounting protrusions  526 A and the multiple fifth mounting protrusions  526 E may be arranged out of alignment with the multiple second mounting protrusions  526 B and the multiple third mounting protrusions  526 C along the longitudinal direction. 
     The multiple second mounting protrusions  526 B may be arranged in alignment with the multiple third mounting protrusions  526 C along the longitudinal direction, and the multiple fifth mounting protrusions  526 E may be arranged in alignment with the multiple first mounting protrusions  526 A along the longitudinal direction. 
     In this case, any one of one surface and the other surface of the base portion  512  of the shaving blade  510  may be supported by a first mounting protrusion  526 A and a fifth mounting protrusion  526 E, and the other of the one surface and the other surface of the base portion  512  may be supported by a second mounting protrusion  526 B and a third mounting protrusion  526 C. 
     This allows the base portion  512  to be supported by at least four mounting protrusions  526 A,  526 B,  526 C, and  526 E (or collectively  526 ), and the shaving blade  510  may be firmly seated on the blade housing  520 . 
     Different from the above embodiments as illustrated in  FIGS. 1 to 4 , the following sixth embodiment of the present disclosure illustrated in  FIG. 10  provides mounting bases each having multiple mounting protrusions with different transverse intervals for each of the mounting bases. The following focuses on the distinctive features according to the sixth embodiment, omitting a repetitive description of a configuration substantially the same as that of the aforementioned embodiments. 
       FIG. 10  is a front view of a razor cartridge  60  according to the sixth embodiment of the present disclosure. 
       FIG. 10  illustrates just two shaving blades  610 A and  6108  (or collectively  610 ) of a plurality of shaving blades for convenience of explanation. Therefore, the number of shaving blades  610  of the present disclosure is not limited to two, and an additional shaving blade may be further provided. 
     Additionally,  FIG. 10  shows each shaving blade  610  having an edge portion for convenience of description. 
     As shown in  FIG. 10 , a blade housing  620  may be provided with a blade mounting  622  including multiple mounting bases  624  made of multiple sixth mounting bases  624 F and multiple seventh mounting bases  624 G. 
     In each of the sixth mounting bases  624 F, multiple sixth mounting protrusions  626 F may be disposed along the transverse direction. 
     The multiple seventh mounting bases  624 G may be disposed to be spaced apart on both sides of the multiple sixth mounting bases  624 F along the longitudinal direction. 
     In each of the seventh mounting bases  624 G, multiple seventh mounting protrusions  626 G may be disposed along the transverse direction. 
     The transverse interval between the multiple sixth mounting protrusions  626 F may be a first distance D 1 , and the transverse interval between the multiple seventh mounting protrusions  626 G may be a second distance D 2  greater than first distance D 1 . 
     The shaving blades  610  may have base portions  612 A and  612 B (or collectively  612 ) each having one surface facing the guard  623  and the other surface facing the cap  621 . 
     The base portion  612 A of the front shaving blade  610 A has one surface that is adjacent to the guard  623  and may be supported by two seventh mounting protrusions  626 G protruding from different seventh mounting bases  624 G, and the base portion  612 A has the other surface supported by two sixth mounting protrusions  626 F protruding from different sixth mounting bases  624 F. 
     The base portion  612 B of the rear shaving blade  610 B has one surface that is adjacent to the cap  621  and may be supported by two sixth mounting protrusions  626 F protruding from the different sixth mounting bases  624 F, and the base portion  612 B has the other surface supported by two seventh mounting protrusions  626 G protruding from the different seventh mounting bases  624 G. 
     This allows the base portion  612 A of the front shaving blade  610 A and the base portion  612 B of the rear shaving blade  6108  to be supported by at least four mounting protrusions  626 , respectively, and the front shaving blade  610 A and the rear shaving blade  610 B may be firmly seated on the blade housing  620 . 
     Although  FIG. 10  illustrates that the blade mounting  622  is configured to have the multiple sixth mounting protrusions  626 F with smaller transverse interval D 1  therebetween and the multiple seventh mounting protrusions  626 G with larger transverse interval D 1  therebetween, the present disclosure is not limited thereto. 
     For example, in the blade mounting  626 , the transverse interval between the multiple sixth mounting protrusions  626 F may be larger than the transverse interval between the multiple seventh mounting protrusions  626 G. 
     In this case, one surface of the base portion  612 A of the front shaving blade  610 A may be supported by two sixth mounting protrusions  626 F, and the other surface of the base portion  612 A of the front shaving blade  610 A may be supported by two protruding seventh mounting protrusions  626 G. 
     Further, one surface of the base portion  612 B of the rear shaving blade  610 B may be supported by two seventh mounting protrusions  626 G, and the other surface of the base portion  6128  of the rear shaving blade  6108  may be supported by two sixth mounting protrusions  626 F. 
     As described above, according to some embodiments of the present disclosure, with the mounting protrusions disposed in a space-efficient manner, multiple shaving blades can be advantageously positioned in the blade housing, even without increasing the size of the blade housing. 
     Although exemplary embodiments of the present disclosure have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions, and substitutions are possible, without departing from the idea and scope of the claimed invention. Therefore, exemplary embodiments of the present disclosure have been described for the sake of brevity and clarity. The scope of the technical idea of the present embodiments is not limited by the illustrations. Accordingly, one of ordinary skill would understand the scope of the claimed invention is not to be limited by the above explicitly described embodiments but by the claims and equivalents thereof.