Patent Publication Number: US-11034038-B2

Title: Razor handle assembly and razor comprising the same

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation application of international application PCT/KR2015/012530, filed on Nov. 20, 2015, which claims the benefit of earlier filing date and right of priority to Korean Patent Application No. 10-2015-0163090 filed on Nov. 20, 2015, the contents of which are all hereby incorporated by reference herein in their entirety. 
    
    
     FIELD 
     The present disclosure relates to a razor handle assembly and a razor including the same, and more particularly to a razor handle assembly to which a cartridge is interchangeably coupled and a razor including the same. 
     BACKGROUND 
     Korean Patent No. 903191 discloses a conventional detachable cartridge  100 , and a handle assembly  200  attachable to and detachable from the cartridge  100 . 
     As disclosed in Korean Patent No. 903191, the conventional handle assembly  200  is assembled such that a pivot axis  230   a  formed in a holder  230  is coupled to a pivot port  221   a  of a lower housing  221 . 
     As a result, the conventional razor has a structure in which the lower housing  221  is exposed to the outside and surrounds the holder  230 , as illustrated in  FIG. 12 a    of Korean Patent No. 903191. 
     Patent Literature 
     Literature 1 Korean Patent No. 903191 
     Since the conventional razors has a structure in which the lower housing  221  is exposed to the outside and surrounds the holder  230 , and the lower housing  221  is often broken by external shock from. When the lower housing  221  is broken, the lower housing  221  cannot support the holder  230 , which may cause a situation in which the cartridge  100  is not fixed and the razor cannot be used. 
     An object of the present disclosure is to provide a razor handle assembly and a razor including the same which are less likely to be damaged by external shock and are easy to attach and detach a cartridge. 
     The aspects of the present disclosure are not limited to the above-mentioned aspects, and another aspect which is not mentioned can be clearly understood by those skilled in the art from the description below. 
     SUMMARY 
     A razor handle assembly according to an embodiment of the present disclosure for solving the above-mentioned problem is a razor handle assembly to which a cartridge including a blade for cutting hair is coupled to be replaceable, the razor handle assembly including: a gripping part gripped by a user; and a connecting part provided at one end of the gripping part to fix the cartridge. The connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder, and the cartridge holder is coupled to surround the outer side of an end portion of the holder clip. 
     The holder clip may include a first support rod; and a second support rod spaced apart from the first support rod by a predetermined distance and formed in parallel with the first support rod. The cartridge holder may include a fastening bar to which the cartridge is detachably coupled; a first lug formed to protrude from one side of the fastening bar and coupled to an outer side surface of the first support rod; and a second lug formed to protrude from the other side of the fastening bar and coupled to an outer side surface of the second support rod. 
     In order to pivotally support the cartridge holder by the holder clip, the cartridge holder may further include a first boss formed to protrude from the first lug toward the second lug, and a second boss formed to protrude from the second lug toward the first lug, and the holder clip may further include a first insertion hole formed in the first support rod to receive first boss, and a second insertion hole formed in the second support rod to receive the second boss. 
     In order to pivotally support the cartridge holder by the holder clip, the holder clip may further include a first boss formed to protrude from an outer side surface of the first support rod, and a second boss formed to be protrude from an outer side surface of the second support rod, and the cartridge holder may further include a first insertion hole formed in the first lug to receive the first boss, and a second insertion hole formed in the second lug to receive the second boss. 
     The connecting part may further include a plunger which elastically supports the fastening bar and provides a restoring force for restoring the cartridge holder to a home position. 
     The cartridge may include a holder receiving portion which forms a holder receiving space into which the cartridge holder is inserted, and a latch formed to protrude in the holder receiving space, and a locking claw in which the latch is received may formed in a lower part of the fastening bar. 
     The connecting part further may include an operation button provided to be movable back and forth within a certain region; and a pusher synchronously driven with the operation button, and the pusher is configured to elastically deform the latch received in the locking claw to disengage the latch from the locking claw, as the operation button moves in one direction. 
     The cartridge holder may be pivotally supported by the holder clip, the connecting part may further include a plunger which supports the fastening bar; and an elastic member interposed between the plunger and the pusher, and the elastic member may provide a first restoring force for restoring the cartridge holder to a home position by the plunger, and a second restoring force for moving the pusher and the operation button in another direction. 
     A razor according to an aspect for solving the aforementioned problems is a razor which includes a cartridge including a blade which cuts hair, and a razor handle assembly to which the cartridge is coupled to be replaceable, wherein the cartridge includes a holder receiving portion which forms a holder receiving space into which a part of the razor handle assembly is inserted; and a latch formed to protrude into the holder receiving space, the razor handle assembly includes a gripping part gripped by a user; and a connecting part provided at one end of the gripping part and detachably coupled to the cartridge, the connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder, and the cartridge holder includes a locking claw which is coupled to surround an outer side of an end portion of the holder clip and formed to receive the latch. 
     The connecting part may further include an operation button provided to be movable back and forth within a certain region; and a pusher synchronously driven with the operation button, and the pusher is configured to elastically deform the latch received in the locking claw to disengage the latch from the locking claw, as the operation button moves in one direction. 
     The cartridge holder may be pivotally supported by the holder clip, the connecting part may further include a plunger which supports the cartridge holder; and an elastic member interposed between the plunger and the pusher, and the elastic member may provide a first restoring force for restoring the cartridge holder to a home position by the plunger, and a second restoring force for moving the pusher and the operation button in another direction. 
     The holder clip may include a first support rod; and a second support rod spaced apart from the first support rod by a predetermined distance and formed in parallel with the first support rod, and the cartridge holder may include a fastening bar in which the locking claw is formed; a first lug formed to protrude from one side of the fastening bar and coupled to an outer side surface of the first support rod; and a second lug formed to protrude from the other side of the fastening bar and coupled to an outer side surface of the second support rod. 
     In order to pivotally support the cartridge holder by the holder clip, the cartridge holder may further include a first boss formed to protrude from the first lug toward the second lug, and a second boss formed to protrude from the second lug toward the first lug, and the holder clip may further include a first insertion hole formed in the first support rod to receive the first boss, and a second insertion hole formed in the second support rod to receive the second boss. 
     In order to pivotally support the cartridge holder by the holder clip, the holder clip may further include a first boss formed to protrude from an outer side surface of the first support rod, and a second boss formed to be protrude from an outer side surface of the second support rod, and the cartridge holder may further include a first insertion hole formed in the first lug to receive the first boss, and a second insertion hole formed in the second lug to receive the second boss. 
     The connecting part may further include a plunger which elastically supports the fastening bar and provides a restoring force for restoring the cartridge holder to a home position. 
     A holder insertion port in which at least a part of the cartridge holder may be received may be formed on one side of the holder receiving portion, and an open hole expanded from the holder receiving space may be formed on the other side thereof. 
     Other specific matters of the present disclosure are included in the detailed description and the drawings. 
     According to the embodiments of the present disclosure, at least the following effects are obtained. 
     Since the cartridge holder coupled with the cartridge is coupled to surround the front end of the holder clip, it is possible to protect the holder clip from external shock. 
     Therefore, the possibility of breakage due to external shock is lowered, and the durability is improved. 
     Further, it is possible to more easily attach and detach the cartridge. 
     The effects of the present disclosure are not limited by the contents exemplified above, and various effects are further included in the present specification. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a plan view illustrating an appearance of a razor handle assembly according to an embodiment of the present disclosure; 
         FIG. 2  is an exploded perspective view of an end portion of a gripping part of the razor handle assembly and a connecting part according to an embodiment of the present disclosure; 
         FIG. 3  is an exploded perspective view of a cartridge that is interchangeably-coupled to the razor handle assembly according to an embodiment of the present disclosure; 
         FIG. 4  is a plan view illustrating a state in which the cartridge is coupled to the razor handle assembly according to an embodiment of the present disclosure; 
         FIG. 5  is a schematic cross-sectional view taken along line AA of  FIG. 4 ; 
         FIG. 6  is a schematic cross-sectional view illustrating a driving state of the cartridge holder and the plunger according to the rotation of the cartridge; and 
         FIG. 7  is a schematic diagram illustrating a driving state of an operation button and a pusher for cartridge separation. 
     
    
    
     DETAILED DESCRIPTION 
     Advantages and features of the present disclosure and methods for accomplishing the same may be understood more readily by reference to the following detailed description of preferred embodiments and the accompanying drawings. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. These embodiments are simply provided so that this disclosure is thorough and complete and fully conveys the concept of the disclosure to those skilled in the art, and the present disclosure will only be defined by the appended claims. The same reference numerals refer to the same elements throughout the specification. 
     Furthermore, the embodiments described herein will be described with reference to a cross-sectional view and/or a schematic view, which is an ideal diagram of the present disclosure. Therefore, the form of the diagram may be modified by manufacturing technique and/or tolerance. Also, in each drawing illustrated in the present disclosure, each constituent element may have been illustrated to be slightly enlarged or reduced in view of the convenience of explanation. The same reference numerals refer to the same elements throughout the specification. 
     Hereinafter, the present disclosure will be described with reference to the drawings for explaining a razor handle assembly and a razor including the same according to an embodiment of the present disclosure. 
       FIG. 1  is a plan view illustrating an appearance of a razor handle assembly according to an embodiment of the present disclosure. 
     As illustrated in  FIG. 1 , a razor handle assembly  1  according to an embodiment of the present disclosure includes a gripping part  100  and a connecting part  200 . 
     The gripping part  100  is a part which is grasped by the user&#39;s hand while the razor is being used, and the connecting part  200  is a part to which a replacement type cartridge ( 2 , see  FIG. 3 ) is attached. 
     A housing  110  for supporting the connecting part  200  is provided at one end of the gripping part  100 . As illustrated in  FIG. 1 , the connecting part  200  is received in the housing  110  such that an operation button  210  and a cartridge holder  270  are exposed to the outside of the housing  110 . 
     The cartridge holder  270  is configured to be inserted into the cartridge  2  and coupled with the cartridge  2 , and the operation button  210  is configured to serve as a switch for separating the cartridge  2  from the gripping part  100 . 
     Hereinafter, the connecting part  200  of the razor handle assembly  1  according to an embodiment of the present disclosure will be described more specifically. 
       FIG. 2  is an exploded perspective view of an end portion of the gripping part of the razor handle assembly and the connecting part according to an embodiment of the present disclosure. 
     As illustrated in  FIG. 2 , the housing  110  formed at the end portion of the gripping part  100  includes an open type installation space  130  through which an upper case  230 , a lower case  290  and the like of the connecting part  200  can be inserted from one end and installed. A block installing through-hole  120  to which the operation button support block  220  is coupled is formed on the upper surface of the housing  110 . 
     On the other hand, the connecting part  200  includes the operation button  210 , an operation button support block  220 , the upper case  230 , a pusher  240 , an elastic member  251 , a plunger  260 , a cartridge holder  270 , a holder clip  280  and the lower case  290 . 
     As illustrated in  FIG. 2 , the operation button  210  includes a base plate  211 , a protruding end  212 , and a first hook end  213 . 
     The operation button  210  is a button used when the user intends to separate the cartridge ( 2 , see  FIG. 3 ) from the razor handle assembly  1 , and the user can separate the cartridge  2  by pushing the operation button  210  toward the cartridge  2 , while pressing the base plate  211 . 
     Generally, since the user uses the operation button  210  while pressing the base plate  211  using the thumb, the base plate  211  may have a circular shape approximately corresponding to an area of a first node of the thumb. However, the shape of the base plate  211  may be variously modified depending on a design, an ease of use, and the like. 
     The protruding end  212  is formed to protrude from the front end of the upper surface of the base plate  211 . The protruding end  212  supports the user&#39;s fingertip which moves the operation button  210  while pressing the base plate  211  so that the user can more easily move the operation button  210 . 
     The first hook end  213  is formed to protrude from the lower surface of the base plate  211 . The first hook end  213  is inserted into a first hook end coupling hole  244  of a pusher  240  to be described later to fix the operation button  210  to the pusher  240 . The operation button  210  is hooked to the pusher  240  with the operation button support block  220 , the upper surface of the housing  110  and the upper case  230  interposed therebetween. 
     The operation button support block  220  includes a block body  221  and a second hook end  223 . 
     The base plate  211  of the operation button  210  is seated on the upper surface of the block body  221 . As illustrated in  FIG. 2 , a slot  222  through which the first hook end  213  of the operation button  210  passes is formed to penetrate the block body  221 . The slot  222  is formed to extend by a certain length in one direction so that the first hook end  213  can move along the slot  222 , thereby guiding the movement distance and the direction of the operation button  210 . 
     On the other hand, the second hook end  223  is formed to protrude downward from the block body  221 . The second hook end  223  is inserted into a second hook end coupling hole  232  of the upper case  230  to fix the operation button support block  220  to the upper case  230 . Therefore, when the operation button  210  moves forward and backward, the operation button support block  220  maintains a fixed state. 
     As illustrated in  FIG. 2 , the upper case  230  includes an upper case body  231  and a third hook end  234 . 
     A second hook end coupling hole  232  into which the second hook end  223  of the operation button support block  220  is inserted is formed in the upper case body  231 . In the second hook end coupling hole  232 , a support bar  233  passing through the center of the second hook end coupling hole  232  is formed. 
     The support bar  233  supports a part of the lower end of the block body  221  so that the operation button support block  220  does not pass through the second hook end coupling hole  232  but is positioned on the upper surface of the upper case body  231 . Therefore, the operation button support block  220  may be fixed to the upper case  230  by the second hook end  223 , while being supported by the support bar  233 . 
     The third hook end  234  is formed to protrude downward from the outside of the upper case body  231 . The third hook end  234  is coupled to the outside of the lower case  290  to couple the upper case  230  and the lower case  290 . 
     The upper case  230  and the lower case  290  form a space in which a pusher  240 , an elastic member  251 , a plunger  260  and a holder clip  280  to be described later can be installed in the coupled state. 
     On the other hand, the pusher  240  is installed between the upper case  230  and the lower case  290  so as to be slidable in the front-rear direction. As illustrated in  FIG. 2 , the pusher  240  includes a push arm  241 , a support wall  242 , and a first hook end coupling hole  244 . 
     The push arm  241  is formed to extend from the support wall  242  toward the front (in the direction of the cartridge  2 ). The first hook end coupling hole  244  is formed to pass through a plate extending from the support wall  242  toward the rear (in the direction of the gripping part  100 ). 
     As described above, the first hook end  213  of the operation button  210  is inserted in the first hook end coupling hole  244 . Therefore, the pusher  240  is synchronously driven with the operation button  210 . That is, as the operation button  210  moves forward and backward, the pusher  240  moves integrally with the operation button  210 . 
     On the other hand, the plunger  260  is installed between the upper case  230  and the lower case  290  so as to be positioned on the upper portion of the push arm  241 . The elastic member  251  is interposed between the support wall  242  of the push arm  241  and the plunger  260  so that the pusher  240  and the plunger  260  are elastically supported. 
     A coupling protrusion ( 245 , see  FIG. 5 ), to which one end of the elastic member  251  is fixedly installed, is formed on the support wall  242 . A coupling protrusion to which the other end of the elastic member  251  is fixedly installed may be formed at the rear end of the plunger  260 . 
     The plunger  260  is installed in the upper part of the push arm  241  so as to be slidable in the front-rear direction, is elastically supported by the elastic member  251 , is retracted by an external force, and moves forward again when the external force is removed. The plunger  260  elastically supports a fastening bar  271  of a cartridge holder  270  to be described later, by utilizing the elastic force of the elastic member  251 . 
     Further, the pusher  240  moves forward by the forward movement force of the operation button  210 , and when the external force is removed, the pusher  240  is retracted again by the elastic force of the elastic member  251 . 
     On the other hand, the holder clip  280  is fixed to the lower case  290  so as to be located between the pusher  240  and the lower case  290 . 
     As illustrated in  FIG. 2 , the holder clip  280  includes a first support rod  281 , a second support rod  283 , and a load connection bar  285 . 
     The first support rod  281  is formed to protrude forward from one side of the rod connection bar  285  by a certain distance, and the second support rod  283  is formed to protrude forward from the other side of the rod connection bar  285  by a certain distance. The first support rod  281  and the second support rod  283  are formed side by side so as to be spaced apart from each other by a predetermined distance. 
     A first insertion hole  282  is formed in the first support rod  281 , and a second insertion hole  284  is formed in the second support rod  283 . 
     As illustrated in  FIG. 2 , the cartridge holder  270  includes a fastening bar  271 , a first lug  272  and a second lug  274 . 
     The first lug  272  is formed to protrude from one side of the fastening bar  271 , and the second lug  274  is formed to protrude from the other side of the fastening bar  271 . The first lug  272  is provided with a first boss  273  formed to protrude toward the second lug  274 , and the second lug  274  is provided with a second boss  275  formed to protrude toward the first lug  272 . 
     The fastening bar  271  may be formed to be horizontally longer than the load connection bar  285  of the holder clip  280  so that the cartridge holder  270  is coupled to surround the outer side of the end portion of the holder clip  280 . 
     The first lug  272  comes into contact with the outer surface (the surface opposite to the surface facing the second support rod  283 ) of the first support rod  281  of the holder clip  280 , and the first boss  273  is installed so as to be inserted into the first insertion hole  282  of the first support rod  281 . 
     The second lug  274  comes into contact with the outer surface (the surface opposite the surface facing the first support rod  281 ) of the second support rod  283  of the holder clip  280 , and the second boss  275  is installed so as to be inserted into the second insertion hole  284  of the second support rod  283 . 
     Therefore, the cartridge holder  270  is pivotally supported by the holder clip  280 . Also, since the cartridge holder  270  is coupled to surround the front end of the holder clip  280 , the cartridge holder  270  can protect the holder clip  280  from external shock and the like. 
     As another embodiment, unlike the configuration illustrated in  FIG. 2 , a first insertion hole  282  instead of the first boss  273  is formed in the first lug  272 , a second insertion hole  284  instead of the second boss  275  is formed in the second lug  274 , a first boss  273  instead of the first insertion hole  282  is formed in the first support rod  281 , a second boss  275  instead of the second insertion hole  284  is formed in the second support rod  283 , and the cartridge holder  270  may be pivotally supported by the holder clip  280 . 
     On the other hand,  FIG. 3  is an exploded perspective view of a cartridge that is interchangeably coupled to the razor handle assembly according to an embodiment of the present disclosure. 
     As illustrated in  FIG. 3 , a cartridge  2  interchangeably coupled to the razor handle assembly  1  according to an embodiment of the present disclosure includes a plurality of blades  22  for cutting hair, and a cartridge frame  21  for supporting a plurality of blades  22 . 
     As illustrated in  FIG. 3 , the cartridge frame  21  has a roughly rectangular framework opened front and rear. Specifically, the cartridge frame  21  includes a pair of vertical frames (not illustrated) formed on each of left and right sides, and a pair of horizontal frames which connects the pair of side frames. The plurality of blades  22  is installed such that the cutting edge is exposed on the front surface of the cartridge frame  21  in a state in which both ends are supported by the side frames. 
     As illustrated in  FIG. 3 , one of the horizontal frames  25  of the cartridge frame  21  is provided with a latch  26  protruding toward the rear part of the cartridge  2 . 
     The latch  26  is formed to extend from the central portion of the horizontal frame  25  toward the open hole  24   b  of the holder receiving portion  24 . The latch  26  can be formed to have an arc shape protruding to the rear part of the cartridge  2 , and has a structure in which the other end is elastically deformed by an external force while being supported by the horizontal frame  25  at one end. 
     Further, jig protrusions  23   a  and  23   b  coupled to the holder receiving portion  24  are formed to protrude from both sides of the latch  26 . 
     Although  FIG. 3  illustrates an example in which the latch  26  is formed in the horizontal frame  25 , according to the embodiment, the cartridge  2  has another support frame formed between the horizontal frames, and the latch  26  may be formed to protrude rearward from the support frame. In this case, the support frame may be formed substantially parallel to the horizontal frame. 
     The holder receiving portion  24  is a member which forms a holder receiving space (not illustrated) in which the cartridge holder  270  is received. A coupling structure for being coupled to the jig protrusions  23   a  and  23   b  is formed on both sides of the holder receiving portion  24 , an open hole  24   b  is formed in the upper part thereof, and a holder insertion port  24   a  into which the cartridge holder  270  is inserted is formed in the lower part thereof. The open hole  24   b  and the holder insertion port  24   a  may be spaces expanded from the holder receiving space. 
     The cartridge  2  according to the present embodiment is configured in which the holder receiving portion  24  and the cartridge frame  21  are separated from each other. Therefore, even when an external shock within a certain range is applied to the cartridge  2 , the holder receiving portion  24  may be deformed separately from the cartridge frame  21  and may absorb the external shock. 
     Therefore, compared with the case where the holder receiving portion  24  is integrally formed with the cartridge frame  21 , the possibility of breakage due to external shock is reduced. In addition, when an external shock of a certain level or more is applied, since the holder receiving portion  24  may be separated from the cartridge frame  21 , the possibility of breakage due to external shock is reduced as compared with the case where the holder receiving portion  24  is formed integrally with the cartridge frame  21 . 
     Since the holder receiving portion  24  of the cartridge  2  according to the present embodiment has a separate opening hole  24   b  formed in addition to the holder insertion port  24   a , the holder receiving portion  24  can be more easily elastically deformed. 
     For convenience of explanation, the cartridge  2  illustrated in  FIG. 3  illustrates only an example of a cartridge coupled to the razor handle assembly  1  according to an embodiment of the present disclosure, and the razor handle assembly  1  according to an embodiment of the present disclosure may be coupled with more various forms of cartridges. 
       FIG. 4  is a plan view illustrating a state in which the cartridge is coupled to the razor handle assembly according to an embodiment of the present disclosure, and  FIG. 5  is a schematic cross-sectional view taken along line AA of  FIG. 4 . 
     As illustrated in  FIGS. 4 and 5 , in the razor handle assembly  1  according to an embodiment of the present disclosure, the cartridge holder  270  is inserted into the holder receiving portion  24  of the cartridge  2  and is coupled with the cartridge  2 . 
     As illustrated in  FIG. 5 , a locking claw  271   a  in which the latch  26  is received is formed in a lower part of a fastening bar  271  of the cartridge holder  270 . 
     Since the other end of the latch  26  is elastically deformed by an external force, the end portion is pushed downward by the fastening bar  271  and elastically deformed during entry of the cartridge holder  270  into the holder receiving space of the cartridge  2 . After that, the end portion passes through the locking claw  271   a , and at the same time, the end portion is lifted upward and is engaged with the locking claw  271   a . As a result, the cartridge holder  270  is fixed in the cartridge  2 , and the cartridge  2  is coupled to the razor handle assembly  1 . 
     Since the razor according to the embodiment of the present disclosure has the cartridge coupling structure of the latch  26  and the locking claw  271   a , the razor can couple the cartridge  2  to the razor handle assembly  1  with the simplified cartridge coupling structure as compared to the conventional razor. 
     The plunger  260  and the support wall  242  of the pusher  240  are mutually elastically supported by the elastic member  251 . The plunger  260  elastically supports the fastening bar  271  by utilizing the elastic force of the elastic member  251 . The position at which the plunger  260  is located in a state in which no external force is applied may be at a home position of the plunger. In this state, the position of the cartridge holder  270  supported by the plunger  260  may be a home position of the cartridge holder. 
     The pusher  240  may be maximally retracted backward in the space in the upper case  230  and the lower case  290  by the elastic force of the elastic member  251 . The position at which the pusher  240  is located in the state in which no external force is applied may be a home position of the pusher, and the position of the operation button  210  when the pusher  240  is at the home position may be a home position of the operation button. 
       FIG. 5  illustrates a state in which no external force is applied after the cartridge  2  is coupled to the razor handle assembly  1 . The pusher  240 , the operation button  210 , the plunger  260 , and the cartridge holder  270  are located at the home positions. 
       FIG. 6  is a schematic cross-sectional view illustrating the driving state of the cartridge holder and the plunger according to pivoting of the cartridge. 
     As illustrated in  FIG. 6 , in a process in which a user uses a razor in which the cartridge  2  is coupled to the razor handle assembly  1 , the cartridge  2  may be used while pivoting about the razor handle assembly  1  by external force. 
     As the cartridge  2  pivots about the razor handle assembly  1 , the cartridge holder  270  fixed to the cartridge  2  also pivots integrally with the cartridge  2 . Further, the plunger  260  is retracted backward with pivoting of the cartridge holder  270 , and elastically supports the cartridge holder  270 . The retraction distance of the plunger  260  may vary depending on a shape of a part in which the plunger  260  and the fastening bar  271  make contact with each other, and a pivoting angle of the cartridge  2 . 
     Thereafter, when the external force which pivots the cartridge  2  to the state illustrated in  FIG. 6  is removed, the plunger  260  moves forward again due to the elastic force of the elastic member  251 , and restores the cartridge holder  270  to the home position (the state of  FIG. 5 ). That is, the elastic force of the elastic member  251  is used as a restoring force (first restoring force) by which the plunger  260  restores the cartridge holder  270  to the home position. 
       FIG. 7  is a schematic diagram illustrating the driving state of the operation button and the pusher for cartridge separation. 
     As illustrated in  FIG. 7 , when intending to separate the cartridge  2  from the razor handle assembly  1 , the operation button  210  may be moved forward (in the direction of the cartridge) by a predetermined distance to separate the cartridge  2  from the razor handle assembly  1 . 
     Specifically, as the user moves the operation button  210  forward by a predetermined distance, the pusher  240  moves forward together with the operation button  210 . 
     As the pusher  240  moves forward, the push arm  241  moves forward to elastically deform the latch  26  and disengage the latch  26  from the locking claw  271   a.    
     As the latch  26  is disengaged from the locking claw  271   a , the cartridge holder  270  may enter a state of being detachable from the cartridge  2  to separate the cartridge  2  from the razor handle assembly  1 . 
     Thereafter, when the external force of moving the operation button  210  forward is removed, the pusher  240  moves backward again due to the elastic force of the elastic member  251  and moves the operation button  210  to a home position (the state illustrated in  FIG. 5 ). That is, the elastic force of the elastic member  251  is used as a restoring force (second restoring force) for restoring the pusher  240  and the operation button  210  to the home position. 
     Since the razor according to the embodiment of the present disclosure can separate the cartridge  2  from the razor handle assembly  1 , simply by elastically deforming the latch  26 , using the pusher  240 , the force required to separate the cartridge is smaller than the conventional razor, and it is easy to remove the cartridge. 
     Those having ordinary skill in the technical field to which the present disclosure belongs will appreciate that the present disclosure does not change its technical idea and essential features and may be implemented in other specific forms. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. It is to be understood that the scope of the present disclosure is defined by the claims rather than the above detailed description, and all changes or modifications deduced from the meaning and range of the following claims and their equivalents should be interpreted as being within the scope of the present disclosure. 
     A razor handle assembly according to an embodiment of the present disclosure is a razor handle assembly to which a cartridge including a blade for cutting hair is coupled to be replaceable, wherein the razor handle assembly includes a gripping part gripped by a user; and a connecting part provided at one end of the gripping part to fix the cartridge, the connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder, and the cartridge holder is coupled to surround the outer side of the end portion of the holder clip. 
     A razor according to an embodiment of the present disclosure is a razor which includes a cartridge including a blade which cuts hair, and a razor handle assembly to which the cartridge is coupled to be replaceable, wherein the cartridge includes a holder receiving portion which forms a holder receiving space into which a part of the razor handle assembly is inserted; and a latch formed to protrude into the holder receiving space, wherein the razor handle assembly includes a gripping part gripped by a user, and a connecting part provided at one end of the gripping part and detachably coupled to the cartridge, wherein the connecting part includes a cartridge holder to which the cartridge is detachably coupled, and a holder clip which supports the cartridge holder, and the cartridge holder includes a locking claw which is coupled to surround the outer side of the end portion of the holder clip and is formed to receive the latch.