Abstract:
A furniture hinge mounted between a furniture wall and a furniture door so as to be used as an opening and closing mechanism of the furniture door, in which, by using the movement part provided on the body part of the furniture hinge and the adjustment part provided at the movement path of the movement part, the entire length of the furniture hinge is changed by advancing and returning the movement part in the opening and closing process of the furniture door such that, since the furniture wall and the furniture door do not come into contact with each other even though the furniture door is completely opened, the peeling damage to the exterior of the furniture is prevented and contact noise is eliminated, thereby improving the satisfaction of consumers.

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
       [0001]    The present invention relates to a furniture hinge provided to a furniture wall so as to be used as an opening and closing means of a furniture door and, more particularly, to a furniture hinge for increasing the jumping length of a furniture door, in which the length of the furniture hinge is changed according to the opening or closing amount of the furniture door so as to prevent damage as well as noise owing to the friction between the furniture door and a furniture wall. 
       Background Art 
       [0002]    Generally, a furniture hinge is a steel structure provided to a furniture wall and a furniture door so as to be used as an opening and closing means of the furniture door. As for such a furniture hinge, it is important to minimize the noise and movement that might be generated in the opening and closing process of the furniture door, as well as improve the operability required in the installation process and setting process of the furniture door. 
         [0003]    As an example, as shown in  FIGS. 1 to 3 , a furniture hinge  100  includes a body part  110 , a door fixing part  120  coupled to a furniture door D by a bolt in a state, in which the door fixing part  120  is coupled to one end portion of the body part  110  through a door hinge  140 , and a wall fixing part  130  coupled to a furniture wall B by a bolt in a state, in which the wall fixing part  130  is coupled to the lower surface of the body part  110 . 
         [0004]    In addition, as shown in  FIGS. 1 to 3 , the hinge part  140  includes an upper rotation plate  142  hinge-coupled to the body part  110  and the door fixing part  120  so as to provide elastic force, and a lower rotation plate  144  hinge-coupled to the body part  110  and the door fixing part  120  so as to guide the operation of the upper rotation plate  142 . 
         [0005]    Therefore, if the furniture door D is opened in a state, in which the furniture hinge  100  is provided in furniture such as a dresser or a sink, the furniture door D is rotated and opened along hinge shafts  125 , which connect the body part  110  and the hinge part  140  respectively, in the sequence shown in  FIG. 3 . 
         [0006]    However, the furniture hinge  100  is a structure, in which the opening or closing amount of the furniture door D is determined only according to the rotation angle of the hinge part  140 . Therefore, when the furniture door D is completely opened, the furniture door D and the furniture wall B are in contact with each other at a portion “A” shown in  FIG. 2 , thereby generating noise or damage. 
         [0007]    That is, the furniture hinge  100  has a structure, in which the upper/lower rotation plates  142 ,  144  rotate only along the hinge shafts  125 , wherein, when the furniture door D is opened at an angle of 90 degrees or more, the corner portion of the furniture door D is struck on the outer wall of the furniture wall B and is damaged, so that the service life of the furniture is lowered. 
         [0008]    Thus, there is an acute need for research to completely block the contact between the corner portion of the furniture door D and the outer wall of the furniture wall B in the opening process of the furniture door D so as to prevent damage to the furniture door D or the furniture wall B as well as contact noise and frictional resistance, thereby maximizing the satisfaction of consumers. 
       PRIOR ART DOCUMENTS 
       [0009]    Prior Art Document 1: Registered Patent Publication No. KR 10-0770372 (Registered: 19 Oct. 2007) 
         [0010]    Prior Art Document 2: Patent Laid-open Publication No. KR 10-2013-0108883 (Published: 7 Oct. 2013) 
       SUMMARY OF THE INVENTION 
       [0011]    Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior arts, and it is an objective of the present invention to provide a furniture hinge for increasing the jumping length of a furniture door, in which the length of the furniture hinge is changed according to the opening or closing amount of the furniture door so as to prevent damage as well as noise owing to the friction between the furniture door and a furniture wall. 
         [0012]    To accomplish the above objective, according to the present invention, there is provided a furniture hinge for increasing the jumping length of a furniture door, includes: a body part disposed between a furniture wall and a furniture door; a wall fixing part for coupling the body part to the mounting position of the furniture wall in a locking manner; a movement part for reciprocatingly moving along a guide shaft in a state, in which the movement part is coupled to the body part through the guide shaft; a hinge part for guiding the rotation direction of the furniture door in a state, in which the hinge part is coupled to the movement part through upper/lower rotation plates; a door fixing part for hinge-coupling the hinge part to the mounting position of the furniture door; and an adjustment part for adjusting the advancement and return of the movement part in a state, in which the adjustment part is accommodated in the movement part, wherein the adjustment part includes a rotation member integrally formed on the lower rotation plate so as to simultaneously rotate together with the lower rotation plate in the opening and closing process of the furniture door, and a link member hinge-coupled respectively to the rotation member and the guide shaft so as to convert the rotational motion of the rotation member into a linear motion, thereby advancing and returning the movement part with respect to the guide shaft. 
         [0013]    The present invention as described above includes at least the following effects. 
         [0014]    First, the entire length of the furniture hinge is changed according to the opening or closing amount of the furniture door, so that the contact between the furniture door and the corner portion of the furniture wall in the opening and closing process of the furniture door is essentially eliminated. 
         [0015]    Secondly, even if the furniture door is completely opened, since the furniture wall and the furniture door do not come into contact with each other, peeling damage to the exterior of the furniture is prevented, as well as the contact noise is reduced, thereby improving the satisfaction of consumers. 
         [0016]    Thirdly, since the total length of the furniture hinge is changed in the opening and closing process of the furniture door, the opening angle of the furniture door is enlarged and thus the furniture door can be formed thick, improving the quality of the furniture. 
         [0017]    Fourth, since the furniture wall and the furniture door do not come into contact with each other in the opening and closing process of the furniture door, a load applied to the furniture door is not transmitted to the furniture hinge, thereby preventing damage to and deformation of the furniture hinge. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0018]      FIG. 1  is a sectional view showing an installation state of a prior art furniture hinge, 
           [0019]      FIG. 2  is a sectional view showing a fully opened state of the prior art furniture hinge, 
           [0020]      FIG. 3  is a perspective view showing an operation process of the prior art furniture hinge, 
           [0021]      FIG. 4  is a view showing a furniture hinge according to a first embodiment of the present invention, 
           [0022]      FIG. 5  is a sectional view showing an operation state of the furniture hinge according to the first embodiment, 
           [0023]      FIG. 6  is a perspective view showing an exploded state of the furniture hinge according to the first embodiment, 
           [0024]      FIG. 7  is a perspective view showing an operation process of the furniture hinge according to the first embodiment, 
           [0025]      FIG. 8  is a sectional view showing an operation process of the furniture hinge according to the first embodiment, 
           [0026]      FIG. 9  is a view showing a furniture hinge according to a second embodiment of the present invention, 
           [0027]      FIG. 10  is a perspective view showing an exploded state of a furniture hinge according to the second embodiment, and 
           [0028]      FIG. 11  is a sectional view showing an operation process of the furniture hinge according to the second embodiment, 
       
    
    
       [0029]      
         [0000]    
       
         
               
             
               
               
               
               
             
               
               
               
             
               
               
               
               
             
           
               
                   
               
               
                 Explanation of essential reference numerals in drawings 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                 B: 
                 furniture wall 
                 D: 
                 furniture door 
               
               
                 10: 
                 body part 
                 12: 
                 inner plate 
               
               
                 12-2: 
                 cutout hole 
                 12-4: 
                 bolt hole 
               
               
                 12-6, 12-8: 
                 front/rear hooks 
                   
                   
               
               
                 12-9: 
                 buffering groove 
                   
                   
               
               
                 14: 
                 outer plate 
                   
                   
               
               
                 14-2, 14-6: 
                 elongated hole 
                   
                   
               
               
                 14-4: 
                 bolt hole 
                 16: 
                 setting bolt 
               
               
                 18: 
                 tension bolt 
                 20: 
                 wall fixing part 
               
             
          
           
               
                 22: 
                 front holding protrusion 
                   
               
               
                 24: 
                 rear holding protrusion 
                   
               
             
          
           
               
                 30: 
                 movement part 
                 31: 
                 elongated hole 
               
               
                 32: 
                 guide shaft 
                 34: 
                 guide hole 
               
               
                 36: 
                 elongated hole 
                 38: 
                 elongated hole 
               
               
                 40: 
                 hinge part 
                 42: 
                 upper rotation plate 
               
               
                 44: 
                 lower rotation plate 
                   
                   
               
               
                 50: 
                 door fixing part 
                   
                   
               
               
                 60: 
                 adjustment part 
                 62: 
                 rotation member 
               
               
                 64: 
                 link member 
                 70: 
                 guide part 
               
               
                 72: 
                 guide hole 
                 74: 
                 guide shaft 
               
               
                 76: 
                 elastic ring 
               
               
                   
               
             
          
         
       
     
       DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0030]    Hereinafter, preferred embodiments of the present invention will be described in detail. 
       Embodiment 1 
       [0031]    As shown in  FIG. 4  to  FIG. 8 , a furniture hinge for increasing the jumping length of a furniture door, according to the present invention, includes: a body part  10  disposed between a furniture wall B and a furniture door D; a wall fixing part  20  for coupling the body part  10  to the mounting position of the furniture wall B in a locking manner; a movement part  30  for reciprocatingly moving along a guide shaft  32  in a state, in which the movement part  30  is coupled to the body part  10  through the guide shaft  32 ; a hinge part  40  for guiding the rotation direction of the furniture door D in a state, in which the hinge part  40  is coupled to the movement part  30  through upper/lower rotation plates  42 ,  44 ; a door fixing part  50  for hinge-coupling the hinge part  40  to the mounting position of the furniture door D; and an adjustment part  60  for adjusting the advancement and return of the movement part  30  in a state, in which the adjustment part  60  is accommodated in the movement part  30 , wherein the adjustment part  60  includes a rotation member  62  integrally formed on the lower rotation plate  44  so as to simultaneously rotate together with the lower rotation plate  44  in the opening and closing process of the furniture door, and a link member  64  hinge-coupled respectively to the rotation member  62  and the guide shaft  32  so as to convert the rotational motion of the rotation member  62  into a linear motion, thereby advancing and returning the movement part  30  with respect to the guide shaft  32 . 
         [0032]    First, the furniture hinge  1  according to the first embodiment includes the body part  10 , the wall fixing part  20 , the movement part  30 , the hinge part  40  and the door fixing part  50 , which are coupled to each other, and, particularly, furniture hinge  1  further includes the adjustment part  60  for advancing and returning the movement part  30  in the opening and closing process of the furniture door D. 
         [0033]    Particularly, the furniture hinge  1  has a structure, in which the length of the movement part  30  is changed corresponding to the length of the guide hole  34  described hereinafter during the advancing or returning of the movement part  30 , wherein the corner of the furniture door D and the furniture wall B do not come into contact with each other even though the furniture door D is completely opened, as shown in  FIG. 5 . 
         [0034]    Herein, the body part  10  constitutes the exterior of the furniture hinge  1  and supports the entire load of the furniture door D, wherein the body part  10  provides a route for the advancement and return of the movement part  30  in the opening and closing processes of the furniture door D in a state, in which the body part  10  is provided between the furniture wall B and the furniture door D. 
         [0035]    Besides, the body part  10  includes an inner plate  12  and an outer plate  14  which are coupled to each other and come into contact with the inner circumferential surface and the outer circumferential surface of the movement part  30  and, particularly, includes a setting bolt  16  and a tension bolt  18  which are essentially required for the engagement between the inner plate  12  and the outer plate  14  or between the inner plate  12  and the movement part  30 . 
         [0036]    In addition, the inner plate  12  is fixed to the wall fixing part  20  through front/rear hooks  12 - 6 ,  12 - 8 , and includes a cutout hole  12 - 2  which are fitted to the lower end portion of the tension bolt  18  and a bolt hole  12 - 4  to which the setting bolt  16  is fastened. 
         [0037]    Furthermore, the outer plate  14  covers the outer circumferential surface of the movement part  30  so as to perform a cover function, and has an elongated hole  14 - 2  and a bolt hole  14 - 4  respectively, such that the elongated hole  14 - 2  provides a clearance space of the setting bolt  16  and the tension bolt  18  is fastened to the bolt hole  14 - 4 . Of course, the outer plate  14  is formed with an elongated hole  14 - 6  for reciprocatingly moving with respect to the guide shaft  31  of the movement part  30 , which will be described hereinafter. 
         [0038]    The setting bolt  16  is to set the positions of the inner plate  12  and the outer plate  14  and fastened to the bolt hole  12 - 4  of the inner plate  12  via the elongated hole  14 - 2  of the outer plate  14 . 
         [0039]    The tension bolt  18  is to adjust the tension of the inner plate  12  and the outer plate  14  and is coupled to the bolt hole  14 - 4  of the outer plate  14  via the elongated hole  36  of the movement part  30 . Particularly, the tension bolt  18  includes a concave groove formed at the lower end portion thereof such that the cutout hole  12 - 2  is held on the concave groove. 
         [0040]    The wall fixing part  20  is coupled by the bolt to the mounting position of the furniture wall B in contact with the mounting position of the furniture wall B, and includes a front holding protrusion  22  and a rear holding protrusion  24 , with which the front hook  12 - 6  and the rear hook  12 - 8  of the inner plate  12  are respectively engaged. 
         [0041]    Of course, even though the front holding protrusion  22  and the rear holding protrusion  24  are formed on the wall fixing part  20  in the present application, it is also possible to detachably couple the inner plate  12  within the technical scope of the present application. 
         [0042]    The movement part  30  is interposed between the inner plate and the outer plate  14  so as to advance and return in the opening and closing process of the furniture door D, wherein the movement part  30  is accommodated in the outer plate  14  and coupled through the guide shaft  32 . 
         [0043]    Further, the movement part  30  includes the guide hole  34 , through which the guide shaft  32  passes, the elongated hole  36  for reciprocatingly moving with respect to the tension bolt  18 , and an elongated hole  38  for reciprocatingly moving with respect to the setting bolt  16 . Particularly, the guide hole  34  is formed in the form of an elongated hole in consideration of the movement amount of the movement part  30 . 
         [0044]    Herein, if the guide shaft  32  is provided at the mounting position of the outer plate  14  in a state, where the movement part  30  is coupled to the outer plate  14  of the body part  10 , then the guide shaft  32  passes through the guide hole  34  so that the guide hole  34  is advanced and returned with respect to the guide shaft  32 . 
         [0045]    The hinge part  40  is to couple the movement part  30  and the door fixing part  50 , and includes the upper rotation plate  42  hinge-coupled respectively to the movement part  30  and the door fixing part  50  so as to provide elastic force and the lower rotation plate  44  hinge-coupled to the movement part  30  and the door fixing part  50  respectively. 
         [0046]    The door fixing part  50  is accommodated in the concave groove of the furniture door D and fixed by a bolt, wherein the front end portion of the upper rotation plate  42  and the front end portion of the lower rotation plate  44  are respectively hinge-coupled to the door fixing part  50 . 
         [0047]    The adjustment part  60  is to convert the rotational motion generated in the opening and closing process of the furniture door D into a linear motion so as to provide the operating force required for the advancing and returning the movement part  30 , and includes the rotation member  62  accommodated in the movement part  30  and the link member  64  operated by the rotation member  62 . 
         [0048]    In addition, the rotation member  62  provides operating force required for advancing and returning the movement part  30 , and is integrally formed at the rear side of the lower rotation plate  44  so as to rotate forward or backward along a hinge shaft P 1  of the lower rotation plate  44 . 
         [0049]    Besides, the link member  64  is hinge-coupled to the rotation path of the rotation member  62 , preferably to the rotation member  62  and the guide shaft  32  respectively, and adjusts a distance between the rotation member  62  and the guide shaft  32 . 
         [0050]    Herein, the adjustment part  60  transmits the rotational force of the furniture door D by the rotation member  62 , and provides the operating force according to the advancing and returning of the movement part  30  by the link member  64 . 
         [0051]    That is, when the rotation member  62  rotates in the clockwise direction in the drawings, the movement part  30  moves forwards, and when the rotation member  62  rotates in the counterclockwise direction in the drawings, the movement part  30  moves backwards. 
         [0052]    Hereinafter, the operation according to the present invention will be described with reference to  FIG. 8 . 
         [0053]    First, as shown in  FIG. 8( a ) , when the furniture door D is completely closed on the furniture wall B, the lower rotation plate  44  does not rotate, and thus the rotation member  62  is in position. 
         [0054]    In addition, when the furniture door D is completely closed, the rotation member  62  and the link member  64  are in a set state, so that the guide shaft  32  is positioned at the left side of the guide hole  34  on the drawing. 
         [0055]    If the furniture door D is opened as shown in  FIG. 8( b )  and  FIG. 8( c ) , the lower rotation plate  44  is rotated along the hinge shaft P 1  in the clockwise direction on the drawings and, at the same time, the rotation member  62  is rotated in the clockwise direction on the drawings. 
         [0056]    Subsequently, since the link member  64  coupled to the rotation member  62  through a hinge shaft P 2  moves while the rotation member  62  rotates, the distance between the hinge shaft P 1  and the guide shaft  32  becomes relatively long. 
         [0057]    That is, since the guide hole  34  moves in the left direction on the drawings with respect to the guide shaft  32  according to the movement amount of the link member  64 , the movement part  30  advances by the rotation amount of the rotation member  62 . 
         [0058]    Herein, since the movement part  30  is in a state, in which the elongated hole  36  and the elongated hole  38  are respectively formed therein, the movement part  30  can move in the left direction on the drawing with respect to the setting bolt  16  and the tension bolt  18  so as to advance. 
         [0059]    Furthermore, as shown in  FIG. 8( c ) , when the furniture door D is fully opened, the rotation member  62  and the link member  64  are in a completely rotated state and the guide shaft  32  is positioned at the right side of the guide hole  34  in the drawing. 
         [0060]    Therefore, as the opening amount of the furniture door D increases, the movement part  30  advances and the length of the furniture hinge  1  is increased. 
         [0061]    Particularly, as shown in  FIG. 8( c ) , the furniture wall B and the furniture door D are sufficiently spaced apart from each other so that the furniture wall B and the furniture door D do not come into contact with each other even if the movement part  30  is fully advanced. 
         [0062]    That is, even if the furniture door D is completely opened, since the furniture wall B and the corner portion of the furniture door D do not come into contact with each other, the furniture is prevented from being damaged, such as the exterior of the furniture being peeled off and the like, thereby extending the service life. 
       Embodiment 2 
       [0063]    As shown in  FIG. 9  to  FIG. 11 , a furniture hinge  1  according to the present invention, includes: a body part  10  disposed between the furniture wall B and the furniture door D; a wall fixing part  20  for fixing an inner plate  12  of the body part to the furniture wall B; a movement part  30  for reciprocatingly moving with respect to a guide shaft  32  in a state, in which the movement part  30  is coupled to an outer plate  14  of the body part  10  through the guide shaft  32 ; a hinge part  40  for guiding the rotation direction of the furniture door D in a state, in which the hinge part  40  is coupled to the movement part  30  through upper/lower rotation plates  42 ,  44 ; a door fixing part  50  for coupling the hinge part  40  to the furniture door D; and a guide part  70  provided at the movement path of the movement part  30  so as to guide the reciprocating movement of the movement part  30 . 
         [0064]    Furthermore, the guide part  70  includes: a guide hole  72  formed in the outer plate  14 ; a guide shaft  74  for reciprocatingly moving along the guide hole  72  in a state, in which the outer plate  14  and the movement part  30  are coupled; and an elastic ring  76  coupled to the outer circumferential surface of the outer plate  14  so as to provide the return force of the guide shaft  74 . 
         [0065]    Herein, the furniture hinge  1  according to the second embodiment includes the body part  10  such that the wall fixing part  20 , the movement part  30 , the hinge part  40 , and the door fixing part  50  are coupled to each other. Additionally speaking, the furniture hinge  1  according to the second embodiment particularly includes the guide part  70  provided instead of the adjustment part  60  of the first embodiment. 
         [0066]    The body part  10  has the inner plate  12  and the outer plate  14 , which are in contact with the inner circumferential surface and the outer circumferential surface of the movement part  30  respectively, and a buffering groove  12 - 9 , which is formed on the top surface of the inner plate  12 , preferably in the center of the top surface of the inner plate  12 , so as to reduce a contact area with the movement part  30  and buffer an external load. 
         [0067]    Particularly, it is different that the inner plate  12  of the body part  10  and the wall fixing part  20  are formed integrally with each other, wherein it is also possible to separately form the inner plate  12  and the wall fixing part  20  from each other within the technical scope of the present application. 
         [0068]    In addition, the body part  10 , the wall fixing part  20 , the movement part  30 , the hinge part  40  and the door fixing part  50  among the essential constituent elements according to the second embodiment are substantially the same as the corresponding elements according to the first embodiment and thus the explanation thereof will be omitted. Hereinafter, the guide hole  72 , the guide shaft  74  and the elastic ring  76  of the guide part  70  will be described. 
         [0069]    The guide hole  72  is to couple the body part  10  and the movement part  30  to each other and is formed in the form of an elongated hole along the lengthwise direction of the outer plate at both side portions of the outer plate  14 . Particularly, the guide hole  72  is formed to have a shape corresponding to that of the guide hole  34  as well as a length and a height corresponding to those of the guide hole  34 . 
         [0070]    In addition, the guide shaft  74  is to couple the body part  10  and the movement part  30  to each other and is mounted along the widthwise direction of the movement part  30  so as to be fixed to the movement part  30 , wherein the guide shaft  74  is formed in a shape corresponding to that of the guide shaft  32 . 
         [0071]    Besides, the elastic ring  76  is coupled to both end portions of the guide shaft  74  so as to provide elastic force, thereby increasing the coupling force between the outer plate  14  and the movement part  30  as well as preventing the separation thereof. 
         [0072]    Therefore, the body part  10  and the movement part  30  are coupled to each other through the guide shafts  32 ,  74  and the guide holes  34 ,  72  so that the advancing and returning of the movement part  30  is performed in the opening and closing process of the furniture door D. 
         [0073]    Hereinafter, the operation according to the present invention will be described with reference to  FIG. 11 . 
         [0074]    First, as shown in  FIG. 11( a ) , when the furniture door D is completely closed on the furniture wall B, the upper/lower rotation plates  42 ,  44  do not rotate, and thus the movement part  30  is in position. 
         [0075]    Besides, when the furniture door D is completely closed, the guide shaft  32  is positioned at the left side of the guide hole  34  in the drawing, and the guide shaft  74  is positioned at the right side of the guide hole  72  in the drawing. 
         [0076]    If the furniture door D is opened, as shown in  FIG. 11( b )  and  FIG. 11( c ) , the upper/lower rotation plates  42 ,  44  rotate along the hinge shafts P 1 , P 2  so that the movement part  30  advances by the rotation amount of the upper/lower rotation plates. 
         [0077]    That is, the movement part  30  moves with respect to the guide shaft  32  and the guide hole  72  in the left direction in the drawings. 
         [0078]    Particularly, as shown in  FIG. 11( c ) , when the furniture door D is fully opened, the guide shaft  32  is positioned at the right side of the guide hole  34  in the drawing, and the guide shaft  74  is positioned at the left side of the guide hole  72  in the drawing. 
         [0079]    Meanwhile, when closing the furniture door D, the furniture door D is closed slowly in the sequence shown in  FIG. 11( c )  to  FIG. 11( a ) , wherein the return process of the guide shaft  74  is smoothly carried out by the elastic force of the elastic ring  75 . 
         [0080]    Therefore, it would be understood that the furniture hinge according to the present invention described hereinabove is not limited to the forms described in the example embodiments and it would be apparent to a person skilled in the art, to which the present invention belongs, that the technical and protective scope of the present invention shall be defined by the following claims. In addition, it should be also understood that all modifications, changes and equivalences within the technical scope of the present invention defined by the following claims belong to the technical scope of the present invention.