Patent Publication Number: US-9890581-B2

Title: Self-assembly safety door

Description:
TECHNICAL FIELD 
     The present invention relates to a self-assembly safety door, and particularly to a self-assembly safety door which is manufactured by assembling a door and a corner part formed on the side end of the door. 
     BACKGROUND ART 
     In general, doors are made of steel or wood and function to separate a space from another space so as to independently define the spaces. 
     A steel door is typically disposed in an exterior space to serve as an entrance door such as a front door and for the purpose of crime prevention, and a wooden door is typically disposed between a space and another space in order to partition an interior space. 
     Here, the wooden door functions to selectively cover a gap between a doorpost and a doorframe coupled with a threshold between wall bodies in the interior space, and typically includes a sliding door, a hinged door, or the like. 
     However, since the conventional interior hinged door has a hinge structure in which the doorpost is coupled to the door by hinges, a gap is formed between the doorpost and the door when the door is opened, and the gap is eliminated when the door is closed again. For this reason, a safety accident may occur when a portion of a user&#39;s body is caught in the gap. 
     In addition, due to this problem, there is a limitation as to the ability to simultaneously and integrally transport, load, and treat parts to be processed and unnecessary processing parts in the door when the door is manufactured. 
     DISCLOSURE 
     Technical Problem 
     The present invention has been made in view of the above problems, and it is an object of the present invention to provide a self-assembly safety door which is manufactured by separately processing and assembling a door and a corner part formed on the side end of the door. 
     Technical Solution 
     The object of the present invention can be achieved by providing a self-assembly safety door which includes a doorpost fixedly coupled to opposite sides of temporary doorframes formed at tips of wall bodies, a door provided on the doorpost so as to be opened and closed by horizontal rotation, a corner part provided on one end of the door to be coupled to the door, the corner part being coupled to the doorpost by a hinge to rotate along with the door, and a coupling part interposed between the door and the corner part to couple the door and the corner part. 
     The coupling part may include a fixing member provided at one selected end of the door or the corner part in a longitudinal direction thereof, and a slit groove formed in the other end of the door or the corner part provided with the fixing member such that the fixing member is slidably coupled into the slit groove. 
     The coupling part may include a first connector for connecting one upper end of the door to one upper end of the corner part, and a second connector for connecting one lower end of the door to one lower end of the corner part. 
     The first connector may include a first female connector connected to the upper end of the door, a first male connector connected to the upper end of the corner part, and a first fastener to penetrate and couple the first female connector and the first male connector, and the second connector may include a second male connector connected to the lower end of the door, a second female connector connected to the lower end of the corner part, and a second fastener to penetrate and couple the second female connector and the second male connector. 
     The first female connector and the second male connector may be disposed on the ends of the door so as to be spaced apart from both ends of the fixing member by a predetermined distance. 
     The doorpost may include a first frame to which the corner part is rotatably coupled by a hinge, and a second frame arranged in parallel with the first frame while facing the first frame so as to come into contact with the door when the door is closed. 
     The first frame may include a first doorframe coupled to one of the temporary doorframes and having a safety groove formed such that a portion or an entirety of the corner part is selectively inserted into the safety groove during rotation, the first doorframe being elongated in a longitudinal direction of the temporary doorframe, and a second doorframe disposed adjacent to the first doorframe, and coupled to the temporary doorframe so as to have a variable width varying according to a thickness of the temporary doorframe. 
     The second frame may include a third doorframe coupled to the other one of the temporary doorframes and facing the door when the door is closed, and a fourth doorframe disposed adjacent to the third doorframe, and coupled to the other temporary doorframe so as to have a variable width varying according to a thickness of the other temporary doorframe. 
     Advantageous Effects 
     A self-assembly safety door according to the present invention can have the following effects. 
     First, since a corner part and a door are processed separately, the processing of the safety door can be facilitated. 
     Secondly, the safety door can be easily manufactured according to the size of the door, and can have improved interchangeability. 
     Thirdly, since no gap is formed between a doorpost and the door, it is possible to prevent a safety accident caused when a portion of a user&#39;s body is caught in the gap. 
     Fourthly, since the doorpost is separately processed, the safety door can be constructed corresponding to the thickness of a wall body or the size of the door. 
     Fifthly, since the components of the safety door are simply assembled in a factory or on the site, it is possible to reduce the construction period and costs. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is a front view illustrating a self-assembly safety door according to an embodiment of the present invention. 
         FIG. 2  is an exploded perspective view illustrating the self-assembly safety door of  FIG. 1 . 
         FIG. 3  is a cross-sectional view illustrating a state in which the self-assembly safety door of  FIG. 2  is separated on the plane. 
         FIG. 4  is a front cross-sectional view illustrating the self-assembly safety door of  FIG. 2 . 
         FIG. 5  is a reference view illustrating a state in which the self-assembly safety door of  FIG. 2  is assembled. 
     
    
    
     BEST MODE 
     Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to the description, it is noted that the terms and words used in the present specification and claims should not be construed as being limited to common or dictionary meanings but instead should be understood to have meanings and concepts in agreement with the spirit of the present invention based on the principle that an inventor can define the concept of each term suitably in order to describe his/her own invention in the best way possible. 
       FIG. 1  is a front view illustrating a self-assembly safety door  100  according to an embodiment of the present invention.  FIG. 2  is an exploded perspective view illustrating the self-assembly safety door  100  of  FIG. 1 .  FIG. 3  is a cross-sectional view illustrating a state in which the self-assembly safety door  100  of  FIG. 2  is separated on the plane. 
     Referring to  FIGS. 1 to 3 , the self-assembly safety door  100  according to the embodiment of the present invention includes a doorpost  130  which is coupled to temporary doorframes  11   a  and  11   b  formed on the tips of wall bodies  10 , a corner part  110  which is coupled to the doorpost  130 , a door  120  which is coupled to the corner part  110  so as to be opened and closed by horizontal rotation, and a coupling part  140  which couples the corner part  110  to the door  120 . 
     The doorpost  130  is a type of pillar which is vertically constructed at the opposite inner sides of the temporary doorframes  11   a  and  11   b , and the corner part  110  is rotatably coupled into the doorpost  130  by a hinge  111 . 
     The doorpost  130  includes a first frame  131  to which the corner part  110  is rotatably coupled by the hinge, and a second frame  132  which is vertically arranged in parallel with the first frame  131  while facing the first frame  131 , so as to come into contact with the door  120  when the door  120  is closed. 
     Each of the first and second frames  131  and  132  is longitudinally formed by injection or extrusion molding. The first frame  131  has a safety groove  133  formed such that a portion or the entirety of the corner part  110  may be selectively inserted into the safety groove  133  during rotation. In this case, the safety groove  133  is preferably formed in the longitudinal direction of the first frame  131  in such a manner that the cross-section of the first frame  131  is bent many times. 
     Accordingly, the doorpost  130  may be easily manufactured to match the dimensions of the temporary doorframes  11   a  and  11   b , and may be manufactured corresponding to temporary doorframes having various sizes or doors having various shapes. Therefore, it is possible to reduce manufacturing costs and the construction period. 
     The safety groove  133  formed in the doorpost  130  is formed in a vertical direction which is the longitudinal direction of the doorpost  130 , and functions to prevent safety accidents such as injuries caused when a portion of a user&#39;s body is caught by the insertion of the corner part  110  when the door  120  is closed. 
     As illustrated in  FIG. 2 , the corner part  110  is coupled to the doorpost  130  by the hinge  111 . 
     The coupling part  140  is interposed between the corner part  110  and the door  120  and fastens the corner part  110  to the door  120 . 
     The coupling part  140  includes a fixing member  141  which is fastened to one end of the door  120 , a slit groove  142  which is longitudinally formed in one end of the corner part  110  so that the fixing member  141  is slidably coupled into the slit groove  142 , a first connector  143  which connects upper ends between the corner part  110  and the door  120 , and a second connector  144  which connects lower ends between the corner part  110  and the door  120 . 
     Both ends of the fixing member  141  longitudinally protrude from one end of the door  120 , and the fixing member  141  is slidably coupled along the slit groove  142 . The fixing member  141  may be tightly fitted into the slit groove  142  if necessary. For example, the fixing member  141  may have a “ ” shape in a cross-section thereof to form a void therein in the longitudinal direction thereof. Preferably, the void has a size sufficiently large to receive the first or second connector  143  or  144 . 
     Here, the first connector  143  includes a first female connector  143   a  connected to the upper end of the door  120 , a first male connector  143   b  connected to the upper end of the corner part  110 , and a first fastener  143   c  which penetrates and couples the first female connector  143   a  and the first male connector  143   b.    
     In addition, the second connector  144  includes a second male connector  144   b  connected to the lower end of the door  120 , a second female connector  144   a  connected to the lower end of the corner part  110 , and a second fastener  144   c  which penetrates and couples the second male connector  144   b  and the second female connector  144   a.    
     In this case, the first female connector  143   a  and the second male connector  144   b  are respectively disposed on the ends of the door  120  so as to be opened upward from the upper and lower ends of the door  120 , and the first male connector  143   b  and the second female connector  144   b  are respectively disposed on the ends of the corner part  110  so as to be opened downward from the upper and lower ends of the corner part  110 . 
     This allows the first female connector  143   a  and the first male connector  143   b  to face each other in the opening directions thereof when they are slidably coupled to each other, and the second female connector  144   a  and the second male connector  144   b  are disposed to face each other in the opening directions thereof for the same reason. Here, the expression “opening directions” refers to a direction in which one is opened and a direction in which the other is closed, and the first female and male connectors  143   a  and  143   b  or the second female and male connector  144   a  and  144   b  are disposed so as to be fastened by the first fastener  143   c  or the second fastener  144   c  in the closing directions thereof. 
     Then, the coupling of the corner part  110  and the door  120  is completed. The corner part  110  rotates along with the door  120 . Although not illustrated in the drawings, an additional component, such as acoustic insulation, damp-proof material, or thermal insulation, may be provided between the coupling surfaces of the corner part  110  and the door  120 . 
     Accordingly, since the corner part  110  and the door  120  may be processed separately, the processing of the self-assembly safety door  100  can be facilitated and it is possible to reduce the production period and costs. 
     Hereinafter, the assembly method and operation of the self-assembly safety door  100  according to the embodiment of the present invention will be described in detail. Throughout the following description, reference numerals similar to the above reference numerals refer to like parts. 
       FIG. 4  is a front cross-sectional view illustrating the self-assembly safety door  100  and the doorpost  130  of  FIG. 2 .  FIG. 5  is a reference view illustrating a state in which the self-assembly safety door  100  of  FIG. 2  is assembled. 
     Referring to  FIGS. 4 and 5 , the corner part  100  and the door  120  are assembled in a sliding manner and are fastened through the coupling of the first and second connectors  143  and  144 . 
     In order for the corner part  100  and the door  120  to be fastened in a sliding manner, the fixing member  141  is first coupled at the center of one end of the door  120 , and is slidably coupled into the slit groove  142  formed in the corner part  110 . 
     Here, the fixing member  141  and the slit groove  142  serve to guide the sliding directions of the corner part  110  and the door  120  for the coupling thereof, and to simultaneously set the sliding-coupling positions of the first and second connectors  143  and  144 . 
     When the fixing member  141  is slidably coupled into the slit groove  142 , the first male connector  143   b  is coupled to one upper end of the corner part  110 , and the first female connector  143   a  is coupled to one lower end of the door  120 . 
     In this case, the coupling position of each of the first and second connectors  143  and  144  is clearly set by a positioning tool (not shown) for positioning the first or second connector  143  or  144  on the corner part  110  or the door  120 . Therefore, the first and second connectors  143  and  144  may be easily bolted at positions specified by the positioning tool without calculating precise dimensions or angles. 
     When the fastening of the first male connector  143   b  and the second male connector  144   b  is completed, the corner part  110  and the door  120  slide in order to respectively fasten the first female connector  143   a  and the second female connector  144   a  to the other sides of the first male connector  143   b  and the second male connector  144   b.    
     As illustrated in  FIG. 5 , the corner part  110  and the door  120  slide so as to have different heights, and the first female connector  143   a  is coupled to one upper end of the door  120 . In addition, although not illustrated in the drawing, the second female connector  144   a  is coupled to one lower end of the corner part  110 . 
     In this case, the first female connector  143   a  and the second male connector  144   b  are preferably disposed on the ends of the door  120  so as to be spaced apart from both ends of the fixing member  141  by a predetermined distance. Here, the predetermined distance corresponds to the length of the first female connector  143   a  or the second male connector  144   b , thereby enabling the first or second connector  143  or  144  to be easily assembled. Of course, the first female connector  143   a  and the second male connector  144   b  may be disposed adjacent to both ends of the fixing member  141 . 
     When the fastening of the first female connector  143   a  and the second female connector  144   a  is completed, the door  120  slides downward on the corner part  110 . Thus, the first connector  143  is coupled to the second connector  144 , and the first and second fasteners  143   c  and  144   c  are respectively fastened to the first connector  143  and the second connector  144 , so that the assembly of the safety door is completed. 
     As such, since the corner part  110  and the door  120  may be processed separately, the processing of the self-assembly safety door  100  of the present invention can be facilitated. In addition, the self-assembly safety door  100  can be easily manufactured according to the size of the door  120 , and can have improved interchangeability. Moreover, since the components of the self-assembly safety door  100  are simply assembled on the site, it is possible to reduce the construction period and costs. 
     The doorpost  130  includes the first frame  131  and the second frame  132 . 
     Here, the first frame  131  includes a first doorframe  131   a  which is coupled to one temporary doorframe  11   a  and has a safety groove  133  formed such that a portion or the entirety of the corner part  110  may be selectively inserted into the safety groove  133  during rotation, and a second doorframe  131   b  which is adjacent to the first doorframe  131   a  and is coupled to the temporary doorframe  11   a.    
     In addition, the second frame  132  includes a third doorframe  132   a  which is coupled to the other temporary doorframe  11   b  and faces the door when the door is closed, and a fourth doorframe  132   b  which is adjacent to the third doorframe  132   a  and is coupled to the other temporary doorframe  11   b  such that the width of the fourth doorframe varies according to the thickness of the other temporary doorframe  11   b . Of course, the first frame  131  may be fixed to the tip of the wall body that includes one temporary doorframe  11   a , and the second frame  132  may be fixed to the tip of the wall body that includes the other temporary doorframe  11   b.    
     Preferably, each of the temporary doorframes  11   a  and  11   b  is made of wood or synthetic resin, and the first and second frames  131  and  132  are coupled by tacker pins or pieces. 
     In this case, the second and fourth doorframes  131   b  and  132   b  are provided such that the respective widths thereof may be variably adjusted corresponding to the thicknesses of one temporary doorframe  11   a  and the other temporary doorframe  11   b . For example, the second and fourth doorframes  131   b  and  132   b  have a structure in which the portions of the second and fourth doorframes  131   b  and  132   b  adjacent to the respective first and third doorframes  131   a  and  132   a  when the second and fourth doorframes  131   b  and  132   b  are manufactured may have lengths corresponding to the widths of the temporary doorframes  11   a  and  11   b , and the portions may be cut or separated according to the widths of the temporary doorframes  11   a  and  11   b  to be constructed. 
     Accordingly, in the self-assembly safety door  100  of the present invention, the doorpost can be easily installed on the temporary doorframes provided at the tips of the wall bodies. 
     It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. 
     INDUSTRIAL APPLICABILITY 
     Since a corner part and a door are separately processed, the processing of a self-assembly safety door according to the present invention can be facilitated and the self-assembly safety door can have improved interchangeability. In addition, the supply of self-assembly safety doors is expected to increase significantly since the self-assembly safety door must be necessarily installed in consideration of the safety of users in places where it is dangerous for infants or children and in which safety accidents happen. 
     
       
         
           
               
             
               
                   
               
               
                 [Description of Reference Numerals] 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
            
               
                 100: self-assembly safety door 
                 110: corner part 
               
               
                 120: door 
                 130: doorpost 
               
               
                 131: first frame 
                 131a: first doorframe 
               
               
                 131b: second doorframe 
                 132: second frame 
               
               
                 132a: third doorframe 
                 132b: fourth doorframe 
               
               
                 140: coupling part 
                 141: fixing member 
               
               
                 142: slit groove 
                 143: first connector 
               
               
                 143a: first female connector 
                 143b: first male connector 
               
               
                 143c: first fastener 
                 144: second connector 
               
               
                 144a: second female connector 
                 144b: second male connector 
               
            
           
           
               
            
               
                 144c: second fastener 
               
            
           
           
               
               
            
               
                 10: wall body 
                 11a, 11b: temporary doorframe 
               
            
           
           
               
            
               
                 111: hinge