Abstract:
An apparatus for fixing a slide rail includes a first fixing body positioned at an edge part of one of both ends when the supporting bar is inserted therein to wrap the edge part in a shape of a looped curve by opening an inserting direction of the supporting bar and facing directions of the supporting bar, the edge part, and the fixing bar and closing the remaining parts, and a second fixing body positioned at one side facing a first supporting part corresponding to an edge part of the other one of both ends when the supporting bar is inserted therein to wrap the edge part in the shape of the looped curve by opening the inserting direction of the supporting bar and facing directions of the supporting bar, the edge part, and the fixing bar and closing the remaining parts.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS AND CLAIM OF PRIORITY 
       [0001]    This patent application is a National Phase application under 35 U.S.C. §371 of International Application No. PCT/KR2011/000548, filed on Jan. 27, 2011, which claims priority to Korean Patent Application Nos. 10-2010-0010450 filed Feb. 4, 2010, 10-2010-0010449 filed Feb. 4, 2010, 10-2010-0043842 filed May 11, 2010, and 10-2010-0043841 filed May 11, 2010, entire contents of which are incorporated herein by reference. 
     
    
     BACKGROUND 
       [0002]    1. Technical Field 
         [0003]    The present invention relates to an apparatus for fixing a slide rail. 
         [0004]    2. Description of the Related Art 
         [0005]    In general, a drawer slidably coupled to accommodate and draw out a substance is installed at a main body of a home appliance such as a refrigerator or a dishwasher, cooking equipment such as an oven, or furniture for accommodating and storing various goods. The drawer can be drawn out from the main body to accommodate the substance and then pushed into the main body after being drawn out, accommodating the substance. The drawer includes slide rails installed at the main body such that the drawer can be smoothly operated when the drawer is drawn out and pushed in. The slide rails may include ball-type or roller-type rolling means to enable smooth rolling movement when the drawer is drawn out and pushed in. The slide rails are installed between the main body and the drawer such that the drawer can be smoothly slid when the drawer is drawn out and pushed in, improving use convenience. 
         [0006]    In particular, in the case of the cooking equipment such as an oven, since the inside of the main body is heated to a temperature at which foods are cooked, the slide rails and the fixing apparatus to which the slide rails are fixed should be formed of a heat-resistant material. In addition, the structure becomes complex and a manufacturing cost is increased. Accordingly, a technique of simplifying the structure of the apparatus for fixing the slide rails is being developed. 
         [0007]    In the conventional main body having the above-mentioned simple structure, net-shaped support bars are installed at both positions to which the drawer is fixed, and the slide rails fixed to both sides of the drawer are fixedly installed at the support bars by a slide rail fixing apparatus. Each of the support bars has a substantially C-shaped cross-section protruding in a horizontal direction and includes corners curved from both ends thereof such that both sides of the drawer slidably moving in the horizontal direction are supported and fixed in a sidewall direction of the main body. The support bars are provided in plural in a longitudinal direction according to the number of drawers. A fixing apparatus for fixing the slide rails slidably coupled to the main body to the support bars is installed at both sides of the drawer. 
         [0008]    The conventional slide rail fixing apparatus is installed in the horizontal direction of the slide rail to be detachably installed at the support bars protruding in the horizontal direction, being press-fitted to the support bars. 
         [0009]    However, the conventional slide rail fixing apparatus is installed in the horizontal direction in which the drawer is pushed in and drawn out along the slide rails, and fixed to the support bars. Accordingly, a force is continuously applied in the horizontal direction when the drawer is pushed in and drawn out. The force is applied to the fixing apparatus installed in the horizontal direction to decrease a fixing force, causing movement. Continuous movement weakens the fixing force of the fixing apparatus to cause deformation and separation thereof. 
         [0010]    In addition, in the conventional slide rail fixing apparatus, as the slide rails are press-fitted to the support bars, a large amount of force is applied. When the applied force is smaller than the press-fitting force, the slide rails are not fixed to the support bar, and thus, the fixing apparatus may be separated. 
         [0011]    Further, in the conventional slide rail fixing apparatus, when the fixing apparatus is pressed to be press-fitted to a position deviated from a support bar fixing position, in a state in which the fixing apparatus is deviated from the support bar fixing position, the fixing apparatus is pressed in a direction of the support bar and brought in contact with the support bar, causing deformation and damage. 
         [0012]    Furthermore, in the conventional slide rail fixing apparatus, when the slide rails are fixed to the support bars, the drawer is moved in a state in which a load of the drawer in which the substance is accommodated and a load of the slide rails are concentrated on the fixing apparatus, and thus, torsional stress is applied to the fixing apparatus fixed to the support bars. That is, in the fixing apparatus for fixing the slide rail disposed at both sides of the drawer, the drawer in which the substance is accommodated to increase the weight is slid so that the load applied in facing inward directions is moved, and thus, a torsional load is generated at a fixing apparatus fixing position of the support bars according to movement of the load. Accordingly, as the torsional load applied upon movement of the drawer is applied from both sides to a central direction, the conventional fixing apparatus press-fitted in the horizontal direction cannot easily deal with the torsional load. Therefore, the torsional stress is concentrated on the fixing apparatus to cause deformation, or the fixing apparatus may be separated to the outside due to a continuously applied force. 
         [0013]    In addition, in the conventional slide rail fixing apparatus, since the fixing apparatus for fixing the slide rails to the support bars is installed in the horizontal direction in which the drawer is slid, a force is applied to a portion fixed to the support bar and is applied in the horizontal direction to cause severe movement and reduce the fixing force. Accordingly, since the fixing apparatus cannot be easily supported by one support bar, the fixing apparatus is fixed by two or more support bars, increasing manufacturing cost and installation cost. 
         [0014]    In particular, a structure configured to guide a shelf on which a material to be cooked is placed is installed in an oven. The structure configured to guide the shelf can be supported to be drawn out and pushed in in a state in which a pair of support bars are installed inside the main body to dispose the shelf between the support bars in consideration of the weight of the shelf. In the shelf guide structure, conventionally, one of the pair of support bars is connected to a connecting bar, and the other is connected to a corner portion to form a pair of extension bars extending in a direction of the main body. Accordingly, the pair of support bars and the pair of extension bars are fixed to the plurality of fixing bars disposed inside the main body in the longitudinal direction to support the shelf using the pair of support bars. 
         [0015]    In the conventional oven as described above, slide rails may be installed at both sides of the shelf to slide the shelf on which foods are cooked. In order to fix the slide rails to the inside of the oven, the pair of support bars installed to support the shelf should be replaced with the support bars coupled to the slide rails, and the fixing apparatus coupled to the support bars should be installed at the slide rails. In this case, as an interior design of the main body should be changed, cost is increased and thus the interior design cannot be applied to the conventional main body. 
         [0016]    The conventional slide rail fixing apparatus is installed in the horizontal direction of the slide rails to be detachably mounted on the pair of support bars protruding in the horizontal direction, and is press-fitted to the support bars. 
         [0017]    However, since the conventional slide rail fixing apparatus is press-fitted to the support bars in the horizontal direction to be fixed to the pair of support bars and installed in the same direction as the shelf moving direction, a force is continuously applied in the horizontal direction when the shelf is pushed into and drawn out. Accordingly, the force is applied to the fixing apparatus installed in the horizontal direction to reduce the fixing force and generate movement, and the fixing force of the fixing apparatus is weakened due to continuous movement to be deformed and separated therefrom. 
         [0018]    In addition, since the conventional slide fixing apparatus is conventionally installed in plural at positions fixed to the pair of support bars in the horizontal direction, respectively, needs of the fixing apparatus are increased to increase the manufacturing cost, and a task of coupling each fixing apparatus to the support bars cannot be easily performed. 
         [0019]    Further, in the conventional slide rail fixing apparatus, since the plurality of fixing apparatuses are press-fitted to the support bars when the pair of support bars are fixed to the slide rails, a large amount of force is applied upon the mounting. When the applied force is smaller than the press-fitting force, the fixing apparatuses respectively fixed to the pair of support bars cannot be fixedly coupled to the slide rails, and thus, the slide rails may be separated therefrom. 
         [0020]    Furthermore, when the conventional slide rail fixing apparatus presses the fixing apparatus to be press-fitted to a position deviated from a fixing position to the pair of support bars, the fixing apparatus is pressed in the direction of the support bars and brought in contact with the support bars in a state in which the fixing apparatus is fixed to the support bars, causing deformation and damage thereof. 
         [0021]    In addition, when the conventional slide rail fixing apparatus is installed in plural to be fixed to the pair of support bars to fix the slide rails to the main body, a load of the shelf, on which the substance is accommodated, and a load of the slide rails are concentrated on the plurality of fixing apparatuses. In this state, when the shelf is moved, a torsional stress is applied to the fixing apparatus fixed to the pair of support bars. That is, the shelf on which the substance is accommodated to increase the weight is slid to the fixing apparatus for fixing the slide rails disposed at both sides of the shelf, and loads applied in facing inward directions are moved. According to movement of the loads, a torsional load is generated at the fixing apparatus fixing position of the support bars. Accordingly, as the torsional stresses applied upon movement of the shelf are applied from both sides in a central direction, the conventional fixing apparatus press-fitted in the horizontal direction cannot easily deal with the torsional stress. As a result, the torsional stress is concentrated on the fixing apparatus to generate deformation, and the fixing apparatus may be separated to the outside due to the continuous applying force. 
         [0022]    As described above, development of the slide rail fixing apparatus capable of securely fixing the slide rails with no structure change in the conventional main body at which the shelf guide structure is installed is acutely needed. 
       SUMMARY 
       [0023]    In order to solve the foregoing and/or other problems, it is an aspect of the present invention to provide a slide rail fixing apparatus, in which both corners of support bars installed at a main body are supported to fix slide rails to both sides of a drawer, enabling attachment thereof and improving a fixing force. 
         [0024]    The foregoing and/or other aspects of the present invention may be achieved by providing a slide rail fixing apparatus for fixing slide rails coupled to both sides of a drawer to corner portions of support bars protruding from both inner sides of a main body in a central direction and connected to fixing bars at both ends of the main body in a horizontal direction, the slide rail fixing apparatus including: a first fixing body disposed at one fixed surface of the slide rail, disposed at one corner portion of both ends upon insertion of the support bars to be opened in the insertion direction of the support bars and facing directions of the support bars, the corner portion and the fixing bar, and closed at the remaining portions to surround the one corner portion in a closed curve; and a second fixing body disposed at one fixed surface of the slide rail, disposed at the other corner portion of both ends upon insertion of the support bars, which is one side facing the first support unit, to be opened in the insertion direction of the support bars and facing directions of the support bars, the corner portion and the fixing bar, and closed at the remaining portions to surround the other corner portion in a closed curve, wherein the first fixing body and the second fixing body are disposed at facing positions to surround both outer surfaces of the corner portions in different directions, surround the fixing bar connected to the corner portions at both ends of the support bars in a closed curve shape, and opened in a direction in which the support bars are inserted and in facing directions of the support bars, the corner portions and the fixing bars to be inserted and mounted at both ends of the support bars. 
         [0025]    In addition, the slide rail fixing apparatus may further include a first elastic body disposed at one surface of the first fixing body into which a portion of the support bar is inserted and in contact therewith, and protruding into the first fixing body to be elastically moved upon insertion of the support bar to fix the support bar, wherein the first elastic body is elastically moved in the direction of the first fixing body upon insertion of the support bar to enable easy insertion of the support bar, and protrudes by elasticity after being inserted to be hooked and fixed in the direction of the first fixing body of the support bar. 
         [0026]    Further, the slide rail fixing apparatus may further include a second elastic body disposed at one surface of the second fixing body into which a portion of the support bar is inserted and in contact therewith, and protruding into the second fixing body to be elastically moved upon insertion of the support bar to fix the support bar, wherein the second elastic body is elastically moved in the direction of the second fixing body upon insertion of the support bar to enable easy insertion of the support bar, and protrudes by elasticity after being inserted to be hooked and fixed in the direction of the first fixing body of the support bar. 
         [0027]    Furthermore, the first and second fixing bodies each may include: a first fixing plate disposed at one surface of the slide rail, positions at the one corner portion being in contact with a portion of the support bar in one side direction and one side surface of a portion of the fixing bar connected to the one corner portion; a second fixing plate facing and spaced apart from the first fixing plate, and in contact with the other side surface of the portion of the fixing bar connected to a portion of the support bar in one side direction by the one corner portion at the other side corresponding to the first fixing plate; and a connecting plate connected to close a direction corresponding to a direction in which the support bars of the first fixing plate and the second fixing plate are inserted, and in contact with and supporting the support bars when the support bars are inserted, wherein the first fixing plate, the second fixing plate and the connecting plate are integrally provided, and the direction in which the support bars are inserted is opened to surround the support bars in a closed curve shape. 
         [0028]    In addition, the first and second fixing bodies each may include: first fixing pieces protruding from both ends of the first fixing plate corresponding to the facing directions, and protruding from the connecting plate to a central position of the first fixing plate toward an outer surface of the fixing bar to surround a portion of the fixing bar in the direction of the first fixing plate at different positions of the first fixing body and the second fixing body; and second fixing pieces protruding from both sides of the second fixing plate corresponding to the facing directions, and protruding from a central position of the second fixing plate to an end position in a direction in which the support bars are inserted toward the outer surface of the fixing bar spaced apart from the first fixing piece to surround a portion of the fixing bar spaced apart from the first fixing pieces in the direction of the second fixing plate direction at different positions of the first fixing body and the second fixing body, wherein the first fixing plate and the second fixing plate protrude from both ends of the support bar to surround the fixing bar connected to the corner portion in different directions to distribute torsional stress and a load due to an external impact, improving a fixing force. 
         [0029]    Further, the first fixing piece may include: first bodies protruding from both ends of the first fixing plate corresponding to the facing directions, and protruding from the connecting plate to a central position of the first fixing plate toward the outer surface to be in contact with portions of the fixing bars disposed at both sides in the direction of the first fixing plate; first connecting bodies protruding from both ends of the first bodies in an outward direction of the fixing bar, and protruding in facing directions of the fixing bar connected to both ends of the support bar by the corner portions and in a direction in contact with the outer surfaces corresponding to the facing directions; and first extension bodies extending from the first connecting bodies in the direction of the second fixing plate, and configured to cover a portion of the fixing bar from the corner portions at positions facing the first bodies in the direction of the second fixing plate, wherein the first body, the first connecting body and the first extension body are integrally formed with each other, and portions into which a portion of the fixing bar is inserted from the corner portion is opened in a closed curve shape to be surrounded from the direction of the first fixing plate to the direction of the second fixing plate. 
         [0030]    Furthermore, the second fixing piece may include: second bodies protruding from both ends of the second fixing plate corresponding to the facing directions, and protruding from a central position of the second fixing plate spaced apart from the first fixing piece to an end of the second fixing plate, into which the support bar is inserted, toward the outer surface to be in contact with a portion of the fixing bar in the direction of the second fixing plate; second connecting bodies protruding from both ends of the second body in the horizontal direction, and protruding in a direction in which both outer surfaces of a portion of the fixing bar are in contact with each other upon insertion of the support bar insertion; and second extension bodies extending from the second connecting body in the direction of the first fixing plate, and spaced apart from the first fixing piece in a direction facing the second body to cover a portion of the fixing bar in the direction of the second fixing plate, wherein the second body, the second connecting body and the second extension body are integrally formed with each other, and portions spaced apart from the first fixing piece and into which a portion of the fixing bar is inserted are opened in a closed curve shape to be surrounded from the direction of the first fixing plate to the direction of the second fixing plate. 
         [0031]    In addition, the first and second fixing bodies each may include: side surface connecting bodies connecting to close outer surfaces of the fixing bars corresponding to facing surfaces of the first fixing plate and the second fixing plate, and connecting different side surfaces of the first fixing plate and the second fixing plate to be in contact with the outer surfaces of the fixing bars connected to the corner portions at both ends of the support bar, wherein the side surface connecting bodies correspond to the facing directions, which are different directions of the first fixing plate and the second fixing plate, to connect directions in contact with the outer surfaces of the fixing bars to close the outer surfaces in a closed curve shape. 
         [0032]    Further, separation grooves may be formed to pass through the side surface connecting bodies connected to both ends of the first fixing plates facing each other from a center in the longitudinal direction to a center of the first fixing plate in the horizontal direction, and divide the connecting body from a center of the first fixing plate in the horizontal direction to be in communication with a center of the second fixing plate in the horizontal direction, wherein the separation grooves divide the first fixing plate, the second fixing plate and the connecting body from the center in the horizontal direction to support forces applied in different directions in a state in which the first fixing plates are partially connected to the side surface connecting bodies. 
         [0033]    Furthermore, another aspect of the present invention may be achieved by providing a slide rail fixing apparatus having support fixing apparatuses protruding from both inner sides of a main body at facing positions to fix slide rails to which a shelf is slidably coupled, and fixed to a pair of support bars, one of which is connected to a connecting bar and the other of which is connected to a corner portion, and having extension bars extending in a direction of the main body, the support fixing apparatus includes: support members disposed at one sides of the slide rails, and protruding in a direction of the support bars at positions of the connecting bars to surround the connecting bars to be supported with the support bars upon insertion into the pair of support bars; support fixing bodies disposed at one surfaces of the slide rails, and disposed at the other side, which is a position of the support bars connected to corner portions of the pair of support bars upon insertion into the support bars; insertion fixing pieces protruding from both ends of the support fixing body in the horizontal direction, connecting the pair of support bars upon insertion of the support bars, and protruding at facing positions to have a fixing space to contact the outer surfaces; and side surface fixing pieces protruding from the other side ends of the insertion fixing pieces facing each other, and surrounding the pair of extension bars upon insertion of the support bar, wherein, in a state in which the support members surround the connecting bars and support the pair of support bars when the slide rails are fixed to the main body, the other sides of the pair of support bars are inserted into the fixing space formed inside the support fixing bodies facing each other to connect the pair of support bars and simultaneously fix the connecting bars. 
         [0034]    In addition, the slide rail fixing apparatus may further include elastic bodies protruding from one surfaces of the insertion fixing pieces facing each other in a direction of the fixing space, and partially connected to the insertion fixing pieces to be moved by elasticity, wherein the elastic bodies are elastically moved in the direction of the support fixing body when the pair of support bars are inserted to enable insertion of the pair of support bars, and protrude by elasticity to hook and fix the pair of support bars after the insertion. 
         [0035]    Further, bent grooves may be formed to pass through the insertion fixing pieces facing each other to be partially connected according to shapes of the elastic body to bend the elastic bodies partially connected to the insertion fixing pieces into the fixing space to be elastically moved, integrally forming the elastic bodies with the insertion fixing pieces. 
         [0036]    Furthermore, the support member may include: support bodies disposed at one surfaces of the slide rails, and disposed at positions at which the pair of support bars are in contact with one surfaces of the connecting bars upon insertion of the support bars; support protrusions protruding from one sides of the support bodies, and protruding in the direction of the support bars to support side surfaces of the connecting bars upon insertion of the support bars; and support fixing bodies protruding from one sides of the support protrusions in the direction of the other side end, protruding to support the connecting bar in the direction of the support bar and surround the connecting bars upon insertion of the support bars to have a support space opened in the other side direction, wherein the support members form the support space with the support protrusions and the support fixing bodies to be inserted into the other side opened by the support space and supported. 
         [0037]    In addition, the slide rail fixing apparatus may further include: support projections protruding from both side surfaces of the support member in the direction of the pair of support bars, and protruding at facing positions to support outer surfaces of the pair of support bars upon insertion of the support bar, wherein the support projections support the outer surfaces of the pair of support bars supported by the support members to contact the outer surfaces to prevent movement thereof when the pair of support bars are supported. 
         [0038]    Further, the side surface fixing piece may include: a side surface body protruding from the support fixing body in the other side direction, and protruding to contact and support one surface of the extension bar; a side surface support member protruding from the side surface body in the direction of the support bar, and protruding to contact and support the side surface of the extension bar upon insertion of the support bar; and a side surface extension body protruding from the side surface support member in one side direction, and spaced apart from the side surface body and connected to the side surface support member to surround the extension bar with one side opened, wherein the side surface fixing piece protrudes from one of the support fixing bodies, on which the pair of support bars are supported, to surround and fix the extension bodies, simultaneously supporting the pair of support bars and the extension bars. 
         [0039]    According to the embodiment of the present invention, in the fixing apparatus for fixing the slide rails to the main body such that the drawer is slid into the main body, the fixing force can be maintained and easy attachment and detachment can be enabled, in comparison with the fixing apparatus surrounding the entire structure in which the rails are disposed to be spaced apart from each other at both sides of the support bars connected to the fixing bars installed at both side surfaces inside the main body to surround the corners. 
         [0040]    In addition, in the fixing apparatus, since the fixing bodies configured to support the outer surfaces of the corners and portions of the support bars and the fixing bars are opened at the inner surfaces in the insertion direction of the support bars and installed at both sides to be spaced apart from each other to correspond to facing directions of the corners disposed at both sides, the slide rails surrounding both corners in a closed curve are fixedly fixed to the corners, improving the fixing force. 
         [0041]    Further, the fixing bodies are open in directions facing the directions in which the support bars are inserted, and the plate members are bent to surround portions of the support bars and portions of the fixing bars connected to the corners. The fixing bodies can be manufactured by differentiating the bending directions according to positions of the corners formed at both sides. Accordingly, the manufacturing process can be simplified to reduce manufacturing cost. 
         [0042]    Furthermore, both side surfaces of the fixing apparatus surrounding the fixing bars are divided to support different directions, and the corners are opened to be exposed to the outside. Accordingly, the weight is moved with movement of the drawer, and thus the torsional stress applied in a direction of the fixing bars opens the corners and is distributed to the fixing apparatus in different directions. As a result, damage and deformation due to concentration of the stress can be prevented to increase the lifespan. 
         [0043]    In addition, the support bars moved and easily inserted into one side of the fixing apparatus by elasticity are fixedly supported by the elastic pieces protruding to fix the support bars, and thus, the support bar can be easily assembled to the fixing apparatus through a simple push operation, improving assembly efficiency. 
         [0044]    Further, the fixing apparatus surrounds the support bars and the fixing bars, and has a structure installed to surround the fixing bars such that loads applied in different directions are distributed, increasing the fixing force. Accordingly, the stress generated due to movement of the drawer can be effectively distributed, and the fixing state can be maintained even when the thickness of the fixing apparatus is reduced, reducing the manufacturing cost. 
         [0045]    Furthermore, as the fixing apparatus supports both ends of the corners using the fixing bodies, movement thereof can be prevented even when the fixing apparatus is fixed by one support bar. Since the fixing force can be maintained even when the plurality of support bars are not used, the number of installed support bars can be reduced. 
         [0046]    In addition, in the fixing apparatus, one of the pair of support bars is connected such that the slide rails are fixed to the inside of the main body and the other of the pair of support bars is connected to surround the corners of the support bars, increasing the fixing force of the pair of support bars and improving the fixing strength by minimizing movement when the shelf is moved. 
         [0047]    Further, the fixing apparatus connects the pair of support bars and is supported at one side end and the other side end in different directions of the horizontal direction and the vertical direction to increase the fixing force. As the weight is moved with movement of the shelf, the torsional stress applied to the fixing apparatus is effectively distributed at the fixing apparatus configured to support the shelf in different directions. Accordingly, damage and deformation due to concentration of the stress can be prevented to increase the lifespan. 
         [0048]    Furthermore, at least one or more elastic bodes moved by elasticity are formed at the fixing body inserted into the fixing apparatus at the other side corner position to support the extension bars and the support bars according to the positions of the pair of support bars. Accordingly, the elastic bodies are moved by elasticity upon insertion of the support bars to enable easy attachment, and return by the elastic force after the attachment to be hooked and fixed to the support bars. As a result, the fixing apparatus can be assembled by a push operation of the support bars into the fixing apparatus, improving assembly efficiency. 
         [0049]    In addition, the fixing apparatus has a structure configured to connect the pair of support bars and surround both ends to distribute the load and stress generated due to movement of the shelf. Accordingly, the fixing force is increased, and the stress generated due to movement of the shelf can be effectively distributed. As a result, the fixing state can be maintained even when the thickness of the fixing apparatus is reduced, decreasing manufacturing cost. 
         [0050]    Further, as the fixing apparatus for connecting the pair of support bars to each other to support the shelf inside the main body and fix the slide rails is provided, the conventional pair of support bars can be used with no interior design change, increasing universality. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0051]    The above and other aspects and advantages of the present invention will become apparent and more readily appreciated from the following description of exemplary embodiments, taken in conjunction with the accompanying drawings of which: 
           [0052]      FIG. 1  is a perspective view showing a state in which a slide rail fixing apparatus according to a first embodiment of the present invention is installed; 
           [0053]      FIG. 2  is a perspective view of major parts showing a state in which the slide rail fixing apparatus of  FIG. 1  is installed at lower-mounted slide rails; 
           [0054]      FIG. 3  is a perspective view showing a fixing apparatus disposed at one side of the slide rail fixing apparatus of  FIG. 1 ; 
           [0055]      FIG. 4  is a rear perspective view of the slide rail fixing apparatus of  FIG. 3 ; 
           [0056]      FIG. 5  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 1  is inserted; 
           [0057]      FIG. 6  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 1  is installed; 
           [0058]      FIG. 7  is a perspective view showing a slide rail fixing apparatus according to a second embodiment of the present invention; 
           [0059]      FIG. 8  is a rear perspective view of the slide rail fixing apparatus of  FIG. 7 ; 
           [0060]      FIG. 9  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 7  is inserted; 
           [0061]      FIG. 10  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 7  is installed; 
           [0062]      FIG. 11  is a use state view showing a state in which a slide rail fixing apparatus according to a third embodiment of the present invention is installed; 
           [0063]      FIG. 12  is a use state view showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed at lower-mounted slide rails; 
           [0064]      FIG. 13  is a perspective view showing the slide rail fixing apparatus of  FIG. 11 ; 
           [0065]      FIG. 14  is a partially-cut side surface showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed; 
           [0066]      FIG. 15  is a use state view of major parts showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed; and 
           [0067]      FIG. 16  is a use state view showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed. 
       
    
    
     DETAILED DESCRIPTION 
       [0068]    Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. However, it will be apparent to those skilled in the art that the following embodiments can be readily understood and modified into various types, and the scope of the present invention is not limited to the embodiments. Like elements are designated by like reference numerals throughout the specification. 
         [0069]    A slide rail fixing apparatus according to a first embodiment of the present invention will be described with reference to  FIGS. 1 to 5 . 
         [0070]      FIG. 1  is a perspective view showing a state in which a slide rail fixing apparatus according to a first embodiment of the present invention is installed,  FIG. 2  is a perspective view of major parts showing a state in which the slide rail fixing apparatus of  FIG. 1  is installed at lower-mounted slide rails,  FIG. 3  is a perspective view showing a fixing apparatus disposed at one side of the slide rail fixing apparatus of  FIG. 1 ,  FIG. 4  is a rear perspective view of the slide rail fixing apparatus of  FIG. 3 , and  FIG. 5  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 1  is inserted. 
         [0071]    Referring to  FIGS. 1 to 5 , support bars  11  are installed at both inner sides of a main body  10  of an oven, or the like, at a position at which a drawer  20  accommodating a substance is drawn out and pushed in. The support bars  11  protrude from both sides toward a central direction at facing positions, and have corner portions  12  bent toward an inner wall surface of the main body  10  from both ends in a horizontal direction in which the support bars  11  protrude. In addition, fixing bars  13  connected to the corner portions  12  to fix the support bars  11  to the main body  10  are fixed to inner surfaces of the main body  10 . 
         [0072]    The above-mentioned support bars  11  may be fixed to both sides of the main body in plural by the fixing bars  13  according to the number of installed drawers  20 . In addition, the plurality of support bars  11  can be fixed to the main body  10  by the fixing bars  13  connected to both sides thereof, respectively. The fixing bars  13  may be fixed to integrated fixing means and the fixing means may be coupled to the main body  10  such that the plurality of support bars  11  and the fixing bars  13  can be fixed together by the fixing means to improve installation convenience. 
         [0073]    As described above, in order to install the drawer  20  slid in the horizontal direction after the support bars  11  are fixed to the inside of the main body  10  by the fixing bars  13 , slide rails  30  are fixed to both sides of the drawer  20  to be slidably coupled to the support bars  11 , and fixing apparatuses  100  are installed between the slide rails  30  and the support bars  11  to fix the slide rails  30  to the support bars  11 , so that the drawer  20  is slidably coupled to the main body  10 . 
         [0074]    Here, the fixing apparatuses  100  are installed at the slide rails  30  installed at both sides to be fixed to the support bars  11  such that the drawer  20  is slidably coupled to the main body  10 . While the apparatus in which the slide rails  30  configured to slide the drawer  20  is installed at the side surfaces and the fixing apparatuses  100  are installed at the side surfaces of the slide rails  30  to be slid on the side surfaces as shown in  FIG. 1 , and the apparatus in which the fixing apparatuses  100  are installed at lower portions of the rails on which the drawer  20  is slid has been described, they are provided for the convenience of description. Since the slide rails  30  may include conventional slide rails, in addition to the slide rails installed at side surfaces or lower parts, the fixing apparatuses  100  can also be installed at various positions according to the slide rails. 
         [0075]    As described above, the fixing apparatuses  100  for fixing the slide rails  30  to the support bars  11  fixed to the main body  10  by the fixing bars  13  are fixed to the slide rails  30  to which the support bars  11  are fixed, and include fixing bodies  110  and support units  120 . The fixing bodies  110  are disposed at one sides of the slide rails  30  fixed to the support bars  11  and surround both portions of the support bars  11  and the corner portions  12  connected to both ends when the support bars  11  are fixed in facing directions, and include fixing upper plates  111 , fixing lower plates  112 , connecting plates  113 , and elastic bodies  116 , respectively. 
         [0076]    The fixing upper plates  111  are disposed at one sides of the slide rails  30 , at which the support bars  11  are fixed, and at upper positions of the corner portions  12  connected to both portions of the support bars  11  and both ends of the support bars  11 , and have a plate shape such that both portions of the support bars  11  are brought in contact with upper portions of the corner portions  12  connected to both ends upon insertion of the support bars  11 . The fixing upper plates  111  are disposed at facing positions and spaced apart from each other, and have a width such that both corresponding outer side surfaces can partially cover the fixing bars  13  in facing directions. That is, the fixing upper plates  111  disposed at facing positions have a width such that the support units  120  are formed to support the fixing bars  13  disposed at both outer side surfaces and spaced apart from each other. The fixing upper plates  111  may be disposed and supported at both side portions of the support bars  11  and upper portions of the corner portions  12  connected to both ends when the slide rails  30  are fixed. 
         [0077]    The fixing lower plates  112  are disposed at one sides of the slide rails  30 , to which the support bars  11  are fixed, and at lower positions of the corner portions  12  connected to both portions of the support bars  11  and both ends of the support bars  11 , and have a plate shape such that both portions of the support bars  11  are brought in contact with the lower portions of the corner portions  12  connected to both portions when the support bars  11  are inserted. The fixing lower plates  112  are disposed at lower portions of the facing fixing upper plates  111 , and have a width such that both corresponding outer side surfaces can cover portions of the fixing bars  13  in facing directions. That is, the fixing lower plates  112  disposed at facing positions and spaced apart from each other have a width such that the support units  120  supports the fixing bars  13  disposed at both outer side surfaces and spaced part from each other, respectively. The fixing lower plates  112  may be disposed at both portions of the support bars  11  and lower parts of the corner portions  12  connected to both ends when the slide rails  30  are fixed. 
         [0078]    In addition, bent grooves  115  are formed to pass through the fixing lower plates  112  according to shapes of the elastic bodies  116 , except for portions of the support bars  11  in the insertion direction. 
         [0079]    The connecting plates  113  connect the fixing upper plates  111  to the fixing lower plates  112  in a direction in which the slide rails  30  are fixed, and have fixing spaces  114  between the fixing upper plates  111  and the fixing lower plates  112  such that a direction in which the support bars  11  are inserted is opened and a direction of the slide rails  30  is closed. The fixing spaces  114  have both side surfaces at which the fixing bars  13  are disposed, one side surfaces opened such that the support bars  11  are inserted, upper portions closed by the fixing upper plates  111 , and lower portions closed by the fixing lower plates  112 , so that a direction of the slide rails  30  is closed by the connecting plates  113 . That is, when the support bars  11  are inserted into the fixing spaces  114 , the fixing bars  13  are disposed at both outer side surfaces in communication with each other and corresponding to facing directions, and the fixing upper plates  111 , the fixing lower plates  112  and the connecting plates  113  surround the remaining portion to support the support bars  11 . In other words, the corner portions  12  connected to both portions of the support bars  11  inserted into the fixing spaces  114  and both ends of the support bars  11  are closed at the upper portions, the lower portions and the direction of the slide rails  30 , a partial position into which the support bars  11  are inserted and the other positions except for the side surfaces form a closed curve shape and support the support bars  11  to support both ends to which the loads are concentrated, and thus, a material cost can be reduced and the attachment can be easily performed while providing a support force similar to support of the entire support bars  11 . 
         [0080]    The elastic bodies  116  protrude from centers of the fixing lower plates  112  in a direction of the fixing spaces  114 , and are partially connected to the support bars  11  in the insertion direction to be moved by elasticity. When the support bars  11  are inserted, the elastic bodies  116  are moved and inserted in the direction of the fixing lower plates  112 , and after the insertion, the support bars  11  inserted by protrusion of the elastic bodies  116  in the direction of the fixing spaces  114  are fixed to the inside of the fixing spaces  114 . In the specification, while the elastic bodies  116  are respectively formed at all of the fixing lower plates  112  spaced apart from each other, this corresponds to only one embodiment. That is, even when the elastic body is installed at any one of the fixing lower plates  112  installed at both sides, it also falls within the scope of the present invention. 
         [0081]    The support units  120  respectively protrude from both outer side surfaces corresponding to directions in which the fixing bodies  110  face each other, and protrude from both outer side surfaces of the fixing bodies  110  from the corner portions  12  to portions of the fixing bars  13  to surround portions of the fixing bars  13  at the corner portions  12 . The support units  120  include upper fixing pieces  121  and lower fixing pieces  122 . The upper fixing pieces  121  and the lower fixing pieces  122  surround portions of the fixing bars  13  from the corner portions  12 , respectively, and have support spaces  123  in which portions of the corner portions  12  and the fixing bars  13  are disposed. 
         [0082]    The upper fixing pieces  121  protrude from the fixing upper plates  111  installed at facing positions to surround the fixing bars  13 , and protrude from the insertion direction of the support bars  11  of the fixing upper plates  111  to the central position in a direction of the fixing bars  13  to surround the fixing bars  13  and extend in the direction of the fixing lower plates  112 , supporting the fixing bars  13 . 
         [0083]    The upper fixing pieces  121  include upper bodies  121   a , upper connecting bodies  121   b , and upper extension bodies  121   c  that protrude from the insertion direction of the support bars  11  of the fixing upper plates  111  to the central position in the direction of the fixing bars  13  and are brought in contact with upper portions of the fixing bars  13 . The upper bodies  121   a  protrude from the insertion direction of the support bars  11  of the fixing upper plates  111  to the central position such that the upper portion is supported by the fixing bars  13  at outer surface positions of the fixing bars  13 . 
         [0084]    The upper connecting bodies  121   b  are connected from an end of the upper bodies  121   a  in the direction of the fixing bars  13  to the direction of the fixing lower plates  112 , and installed to be supported by the outer surfaces of the fixing bars  13  when the support bars  11  are inserted. The upper connecting bodies  121   b  are connected to the upper bodies  121   a  supporting the upper portions of the fixing bars  13  to support the outer surfaces of the fixing bars  13 . The upper connecting bodies  121   b  are connected to the upper bodies  121   a  and disposed at the outer surfaces of the fixing bars  13 , and protrude to support the outer surfaces of the fixing bars  13  supported by the upper bodies  121   a  at the upper portions. 
         [0085]    The upper extension bodies  121   c  protrude from the upper connecting bodies  121   b  in the direction of the fixing lower plates  112 , and contact and support the lower portions of the fixing bars  13  when the support bars  11  are inserted. The upper extension bodies  121   c  are spaced apart from the fixing lower plates  112  and supported by the lower portions of the fixing bars  13  to surround the fixing bars  13  with the upper bodies  121   a  and the upper connecting bodies  121   b . That is, the upper bodies  121   a , the upper connecting bodies  121   b  and the upper extension bodies  121   c  protrude from the side surfaces of the fixing upper plates  111  to surround the lower portions in an upward direction, and surround and support the fixing bars  13  when the support bars  11  are inserted, increasing the fixing force and effectively distributing the torsional stress generated from the upward direction to the downward direction. 
         [0086]    The lower fixing pieces  122  protrude from the fixing lower plates  112  installed at facing positions to surround the fixing bars  13 , and protrude from the direction of the connecting plates  113  of the fixing lower plates  112  to the central position spaced from the upper fixing pieces  121  in the direction of the fixing bars  13  to surround the fixing bars  13  and extend in the direction of the fixing upper plates  111 , supporting the fixing bars  13 . The lower fixing pieces  122  surrounded from the downward direction to the upward direction are installed to support the fixing bars  13  in a direction opposite to the upper fixing pieces  121  surrounded from the upward direction to the downward direction. Accordingly, when the torsional stress is vertically applied, the upper fixing pieces  121  and the lower fixing pieces  122  distribute the stress according to the direction of the load, and thus damage and deformation due to concentration of stress can be prevented and the fixing force can be increased. 
         [0087]    The lower fixing pieces  122  include lower bodies  122   a , lower connecting bodies  122   b  and lower extension bodies  122   c  that protrude from the central position of the fixing lower plates  112  spaced apart from the upper fixing pieces  121  in the direction of the connecting plates  113  and are brought in contact with the lower portions of the fixing bars  13 . The lower bodies  122   a  protrude from the central position of the fixing lower plates  112  to a position at which the corner portions  12  are inserted in the direction of the connecting plates  113  such that the lower portions of the fixing bars  13  are supported at the outer surface positions of the fixing bars  13 . 
         [0088]    The lower connecting bodies  122   b  are connected from ends of the lower bodies  122   a  in the direction of the fixing bars  13  to the direction of the fixing upper plates  111 , and installed to be supported by the outer surfaces of the fixing bars  13  when the support bars  11  are inserted. The lower connecting bodies  122   b  are connected to the lower bodies  122   a  supporting the upper portions of the fixing bars  13  to support the outer surfaces of the fixing bars  13 . The lower connecting bodies  122   b  are connected to the lower bodies  122   a  and disposed at the outer surfaces of the fixing bars  13 , and protrude to support the outer surfaces of the fixing bars  13 , the lower portions of which are supported by the lower bodies  122   a.    
         [0089]    The lower extension bodies  122   c  protrude in the direction of the fixing upper plates of the lower connecting bodies  122   b , and contact and support the upper portions of the fixing bars  13  when the support bars  11  are inserted. The lower extension bodies  122   c  are spaced apart from the fixing upper plates  111 , and supported by the upper portions of the fixing bars  13  to surround the fixing bars  13  with the lower bodies  122   a  and the lower connecting bodies  122   b . That is, the lower bodies  122   a , the lower connecting bodies  122   b  and the lower extension bodies  122   c  protrude from the side surfaces of the fixing lower plates  112  to surround the fixing lower plates  112  from the downward direction to surround and support the fixing bars  13  when the support bars  11  are inserted, and thus the fixing force can be increased and the torsional stress generated from the downward direction to the upward direction can be effectively distributed. 
         [0090]    In addition, an operation of the slide rail fixing apparatus according to the first embodiment of the present invention will be described with reference to  FIG. 6 . 
         [0091]      FIG. 6  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 1  is installed. 
         [0092]    Referring to  FIG. 6 , the plurality of fixing bars  13  are fixed to the inside of the main body  10  in the longitudinal direction according to the number of drawers  20 , and the support bars  11  having the corner portions  12  are installed at both ends. The slide rails  30  are installed at both sides of the drawer  20  slidably coupled to the main body  10 . Here, slide rails  30  have a structure that is slid using a conventional rolling means such as a ball or a roller. The fixing apparatuses  100  are installed at both side surfaces of the slide rails  30  to be fixed to the corner portions  12  of the support bars  11  at facing positions. In addition, the slide rails  30  may include a rail at which the drawer  20  and the fixing apparatuses  100  are installed at the side surface to be slid to the side surfaces, and a rail at which the drawer  20  and the fixing apparatuses  100  are installed at upper and lower sides, installed at a lower portion of the drawer  20 . 
         [0093]    When the fixing apparatuses  100  are inserted in the direction of the corner portions  12  disposed at both ends of the support bars  11  upon installation of the drawer  20 , the support bars  11  are inserted into the fixing spaces  114  formed inside the fixing bodies  110  and the support units  120  are inserted in the direction of the fixing bars  13 . That is, the support bars  11  are inserted into the fixing bodies  110  spaced apart from each other, and the support bars  11  surround and contact the fixing upper plate, the fixing lower plate and the connecting plates  113 . In addition, the upper fixing pieces  121  and the lower fixing pieces  122  formed at different side surfaces, which are outward directions of the fixing bodies  110  disposed at both facing sides, are spaced apart from each other, the upper fixing pieces  121  are fixed to surround the fixing bars  13  from the upward direction to the downward direction, and the lower fixing pieces  122  are fixed to surround the fixing bars  13  from the downward direction to the upward direction. Accordingly, the fixing apparatuses  100  surround the support bars  11  and the fixing bars  13  when the slide rails  30  are fixed to increase the fixing force of the slide rails  30  and prevent movement of the drawer  20  when the drawer is moved. In addition, the fixing apparatuses  100  simultaneously surround the support bars  11  and the fixing bars  13  to increase the fixing force and reduce the thickness, reducing manufacturing cost, in comparison with the conventional fixing apparatuses  100 . 
         [0094]    In addition, the elastic bodies  116  are provided inside the fixing spaces  114 , and the support bars  11  are inserted to be hooked by elasticity, increasing the fixing force. 
         [0095]    The drawer  20  is moved in a state in which a material to be cooked and a substance to be accommodated are received in the drawer  20  upon opening and closing, and thus, the weight is moved according to movement of the drawer  20  so that the weight is concentrated on the fixing apparatuses  100 . In particular, when the drawer  20  is moved, torsional stress is generated from the fixing apparatuses  100  disposed at inner and outer sides. The torsional stress is applied to the fixing apparatuses  100  in the downward direction as well as in the upward direction. Accordingly, if the upper and lower portions are not fixed, damage or deformation may occur. Therefore, in the support units  120  supporting the fixing bars  13 , the upper fixing pieces  121  surrounding the fixing bars  13  from the upward direction to the downward direction and the lower fixing pieces  122  surrounding the fixing bars  13  from the downward direction to the upward direction are spaced apart from each other to support the fixing bars  13  in the upward direction and the downward direction, and thus, the torsional stress can be effectively distributed to prevent deformation and damage, increasing the lifespan. 
         [0096]    Next, a slide rail fixing apparatus according to a second embodiment of the present invention will be described with reference to  FIGS. 7 to 9 . 
         [0097]      FIG. 7  is a perspective view showing a slide rail fixing apparatus according to another embodiment of the present invention,  FIG. 8  is a rear perspective view of the slide rail fixing apparatus of  FIG. 7 , and  FIG. 9  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 7  is inserted. 
         [0098]    Referring to  FIGS. 7 to 9 , the slide rail fixing apparatuses  100  according to the second embodiment of the present invention are substantially the same as the slide rail fixing apparatuses  100  shown in  FIGS. 1 to 5  having the structure installed at the slide rails  30  to fix the slide rails  30  to the main body  10 , and thus description thereof will not be repeated. 
         [0099]    In addition, the slide rail fixing apparatuses  100  according to the second embodiment of the present invention include fixing bodies  110 . Here, some elements of the fixing bodies  110  are substantially equal to the fixing apparatuses  100  shown in  FIGS. 1 to 5 , and description thereof will not be repeated. 
         [0100]    The fixing bodies  110  are spaced apart from each other and disposed at facing positions of one side surfaces of the slide rails  30  to support both sides of the support bars  11 , the side surfaces facing the direction in which the support bars  11  are fixed are opened, and the fixing bodies  110  are closed such that both portions of the support bars  11  and upper and lower portions of the fixing bars  13  connected to the corner portions  12  are closed to connect to each other in the direction of the slide rails  30 . The fixing bodies  110  include fixing upper plates  111 , fixing lower plates  112 , elastic bodies  116 , and side surface connecting bodies  117 . The fixing upper plates  111  are spaced apart from each other in a fixing direction of the support bars  11  of the slide rails  30  and disposed on both portions of the support bars  11  and portions of the fixing bars  13  connected to the corner portions  12 , have a plate shape supporting both side portions of the support bars  11  and upper portions of the corner portions  12  and the fixing bars  13  connected thereto, and have a width to cover portions of the corner portions  12  and the fixing bars  13  at both sides of the support bars  11 . 
         [0101]    The fixing lower plates  112  are spaced apart from each other in the fixing direction of the support bars  11  of the slide rails  30  and disposed at both portions of the support bars  11  and lower portions of the fixing bars  13  connected to the corner portions  12 , and have a plate shape to support both side portions of the support bars  11  and lower portions of the corner portions  12  and the fixing bars  13  connected thereto. The fixing lower plates  112  have the same width as the fixing upper plates  111 , and the fixing upper plates  111  and the fixing lower plates  112  are disposed to contact both upper and lower portions of the support bars  11 , and thus portions of the corner portions  12  and the fixing bars  13  disposed at both ends are brought in contact with the upper and lower portions and both ends of the support bars  11  are brought in contact with the upper and lower portions in the longitudinal direction and the horizontal direction. 
         [0102]    The connecting plates  113  connect the fixing upper plates  111  and the fixing lower plates  112  in the direction of the slide rails  30 , and close the direction of the slide rails  30  to support the support bars  11  by bringing both portions of the support bars  11  inserted between the fixing upper plates  111  and the fixing lower plates  112  in contact with each other in the direction of the slide rails  30 . That is, the connecting plates  113  connect the fixing upper plates  111  and the fixing lower plates  112  to form the fixing spaces  114 , in which the inserted portion of the support bars  11  inserted thereinto and the facing side surfaces are opened and the others form a closed curve. As a result, the support bars  11  can be easily inserted at the open positions and both ends of the support bars  11  can be inserted, increasing the fixing force. 
         [0103]    In addition, bent grooves  115  are formed to pass through the fixing lower plates  112  according to the shapes of the elastic bodies  116 , except for portions of the support bars  11  in the insertion direction. The elastic bodies  116  partially connected along the bent grooves  115  are formed to protrude in the direction of the fixing spaces  114  and move by elasticity. 
         [0104]    The side surface connecting bodies  117  connect the fixing upper plates  111  and the fixing lower plates  112  to close the outer surfaces corresponding to the facing directions, and are formed to support the outer surfaces of the fixing bars  13  from the direction of the connecting plates  113  to the insertion direction of the support bars  11  when the support bars  11  are inserted. The side surface connecting bodies  117  connect the outer surfaces of the fixing upper plates  111  and the fixing lower plates  112  disposed at facing positions, and are formed to surround the fixing bars  13  when the support bars  11  are inserted and fixed, supporting the fixing bars  13  upon insertion of the support bars  11 . That is, the side surface connecting bodies  117  connect the fixing upper plates  111  and the fixing lower plates  112  to close outer surfaces corresponding to the facing directions to close the outer surfaces of the fixing spaces  114 , so that the outer surfaces of the fixing bars  13  connected to both ends of the support bars  11  by the corner portions  12  can contact each other to be supported. In other words, both side portions of the support bars  11  and portions of the corner portions  12  and the fixing bars  13  connected thereto close the direction of the slide rails  30  using the connecting plates  113  in a state in which the upper and lower portions are brought in contact with the fixing upper plates  111  and the fixing lower plates  112 , and close the outer surfaces of the fixing bars  13  in the longitudinal direction using the side surface connecting bodies  117  so that the facing directions in which the support bars  11  are inserted and the corner portions  12  and the fixing bars  13  disposed at both sides and the direction in which the support bars  11  are inserted are opened, and the remaining portions form a closed curve shape. As a result, the attachment can be easily performed, and the fixing force of both ends can be increased. 
         [0105]    In addition, the fixing spaces pass from the center of the side surface connecting bodies  117  in the longitudinal direction to the center of the fixing upper plates  111  in the horizontal direction, and are brought in communication with each other to divide the connecting plates  113  and the fixing lower plates  112  at the center of the fixing upper plates  111  in the horizontal direction. The fixing upper plates  111 , the connecting plates  113  and the fixing lower plates  112  are divided at the center in the horizontal direction in a state in which they are partially connected to the side surface connecting bodies  117 , and thus the center in the horizontal direction can be divided to support them in different directions. That is, after the slide rails  30  are fixed by the fixing apparatuses  100 , the slide rails can be separated in the horizontal direction according to movement of the drawer  20  to be supported in different directions. Accordingly, the torsional stress generated in the fixing apparatuses  100  can be distributed to minimize the damage and deformation. 
         [0106]    In addition, an operation of the slide rail fixing apparatus according to the second embodiment of the present invention will be described with reference to  FIG. 10 . 
         [0107]      FIG. 10  is a partially-cut perspective view showing a state in which the slide rail fixing apparatus of  FIG. 7  is installed. 
         [0108]    Referring to  FIG. 10 , when the support bars  11  are inserted into the fixing spaces  114  of the fixing apparatuses  100  upon installation of the drawer  20 , the elastic bodies  116  partially connected thereto are elastically moved in the direction of the fixing lower plates  112  to enable easy insertion of the support bars  11 . When the support bars  11  are inserted, the fixing bars  13  are surrounded and supported inside the side surface connecting bodies  117  formed at the outer surfaces corresponding to the facing positions. Accordingly, the support bars  11  and the fixing bars  13  are simultaneously surrounded to prevent movement when the drawer  20  is moved and improve the fixing force. 
         [0109]    In addition, the fixing bodies  110  pass from the center of the side surface connecting bodies  117  in the longitudinal direction to the center of the fixing upper plates  111  in the horizontal direction, and separation grooves  118  are formed to pass through the ends to divide the connecting bodies  113  and the fixing lower plates  112 . Accordingly, the support bars  11  and the fixing bars  13  can be supported in a state in which they are partially connected to the side surface connecting bodies  117  and the central position in the horizontal direction of the fixing upper plates  111 , and the connecting plates  113  and the fixing lower plates  112  are divided. That is, since the fixing bodies  110  respectively supporting the support bars  11  and the fixing bars  13  are separated from the central position in the horizontal direction by the separation grooves  118 , stress applied in different directions can be effectively distributed. In other words, the torsional stress applied to the fixing apparatuses  100  upon movement of the drawer  20  is applied in various directions, with no particular limitation on the direction. Accordingly, the torsional stress applied in different directions at the fixing bodies  110  can be effectively distributed, and thus damage and deformation due to the torsional stress can be prevented, increasing the lifespan. 
         [0110]    In addition, a slide rail fixing apparatus according to a third embodiment of the present invention will be described with reference to  FIGS. 11 to 15 . 
         [0111]      FIG. 11  is a use state view showing a state in which a slide rail fixing apparatus according to a third embodiment of the present invention is installed,  FIG. 12  is a use state view showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed at lower-mounted slide rails,  FIG. 13  is a perspective view showing the slide rail fixing apparatus of  FIG. 11 ,  FIG. 14  is a partially-cut side surface showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed, and  FIG. 15  is a use state view of major parts showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed. 
         [0112]    Referring to  FIGS. 11 to 15 , slide rails  60  are fixed to the inside of a main body  40  at which a pair of support bars  41  are installed to support a shelf  50  of an oven, or the like, by support fixing apparatuses  200 . 
         [0113]    The pair of support bars  41  disposed at both sides to support the shelf  50  installed at the oven are connected to the inside by connecting bars  42 , and are bent outward in the direction of the main body  40  to form extension bars  45  connected by corner portions  44 . Fixing bars  46  are installed at inner and outer sides of the main body in the horizontal direction and disposed at facing positions. The fixing bars  46  disposed inside have protrusions  43  protruding in the direction of the connecting bars  42  of the pair of support bars  41 , and the fixing bars  46  disposed outside have a pair of extension bars  45  connected to the pair of support bars  41  by the corner portions  44 . The pair of support bars  41  are provided in plural in the longitudinal direction according to the number of shelves  50 , and installed inside the main body  40  in a state fixed to the fixing bars  46 . 
         [0114]    In order to install the shelf  50  slid along the slide rails  60  at the main body  40  having the pair of support bars  41 , the slide rails  60  can be fixed by the support fixing apparatuses  200 . Here, the slide rails  20  include a side surface mounting type slide rail installed at side surfaces of the shelf  50  and fixed by the support fixing apparatuses  200  as shown in  FIG. 1 , and a lower-mounted slide rail installed at a lower portion of the shelf  50  and fixed by the support fixing apparatuses  200  as shown in  FIG. 2 . This is for convenience of description. The slide rails  60  can be slid through rolling movement to be fixed to various positions of the shelf  50 , and can be fixed to the main body  40  by the support fixing apparatuses  200  according to the position fixed to the shelf  50 , which is not limited to the mounting position. 
         [0115]    As described above, the support fixing apparatuses  200  for fixing the slide rails  60  to the pair of support bars  41  fixed to the main body  40  by the fixing bars  46  include support units  210  and support fixing units  220 , which are supported at the connecting bars  42  of the slide rails  60  together with the pair of support bars  41 . The support units  210  include support members  211  fixed to one side surfaces of the slide rails  60 , and support projections  213 . The support members  211  are fixed to one side surfaces of the slide rails  60  fixed to the support bars  41 , and installed at positions at which the connecting bars  42  are inserted when the support bars  41  are supported. The support members  211  are opened at one side ends in the other side direction to surround and support the connecting bars  42  in an inserted state, and the support members  211  are moved in a state in which the connecting bars  42  are supported to contact and support the pair of support bars  41  at the one side surfaces, simultaneously supporting the pair of support bars  41  and the connecting bars  42 . 
         [0116]    The support members  211  include support bodies  211   a , support protrusions  211   b , and support fixing bodies  211   c , which are fixed to one sides of the slide rails  60 . The support bodies  211   a  are disposed at one sides of the slide rails  60 , and contact one side surfaces to support the pair of support bars  41  when the support bars  41  are fixed. 
         [0117]    The support protrusions  211   b  protrude from one side ends of the support bodies  211   a  in the direction of the pair of support bars  41 , and are formed to contact side surfaces of the pair of connecting bars  42  connecting the pair of support bars  41 . 
         [0118]    The support fixing bodies  211   c  protrude from one side ends of the support protrusions  211   b  in the other side direction, and protrude to have support spaces  212  surrounded by the connecting bars  42  after the insertion when the other sides are opened and the support bars  41  are supported. The support fixing bodies  211   c  contact the connecting bars  42  in the direction of the pair of support bars  41  to support the connecting bars  42  upon insertion of the support bars  41 , and protrude from the support protrusions  211   b  in the other side direction. Accordingly, the connecting bars  42  are inserted into the support spaces  212  at the other side opened when the support bars  41  are inserted to surround outer surfaces of the support fixing bodies  211   c  with the support protrusions  211   b , increasing a support force. 
         [0119]    As described above, in a state in which the connecting bars  42  extend from one side ends of the support bodies  211   a  and are inserted into the support spaces  212  opened at the other side by the support protrusions  211   b  and the support fixing bodies  211   c  to surround the connecting bars  42 , the pair of support bars  41  can closely contact the support bodies  211   a  to fix the support fixing units  220 , increasing the support force. That is, the support fixing units  220  are fixed in a state in which the pair of support bars  41  and the connecting bars  42  are simultaneously supported, increasing the support force. 
         [0120]    The support projections  213  protrude from both surfaces of the support members  211  in the direction of the pair of support bars  41 , and contact and support both outer surfaces of the pair of support bars  41  in contact with the support members  211  when the support bars  41  are supported. Accordingly, after the connecting bars  42  are supported in a surrounded state, both surfaces are supported to prevent movement of the pair of support bars  41  supported by the support members  211  to increase the support force. 
         [0121]    The support fixing units  220  include support fixing bodies  221 , insertion fixing pieces  222 , side surface fixing pieces  224 , and elastic bodies  226 , which are fixed to the other side of the slide rails  60 . The support fixing bodies  221  are fixed to the other side of the slide rails  60 , and installed at positions of the pair of support bars  41  at which the corner portions contact when the support bars  41  are fixed. 
         [0122]    The insertion fixing pieces  222  protrude from both surfaces of the support fixing bodies  221  in the direction of the pair of support bars  41  at facing positions, and have fixing spaces  223  opened at both sides in the direction of the pair of support bars  41  such that outer surfaces of the pair of support bars  41  are fixed when the support bars  41  are fixed. The fixing spaces  223  move the slide rails  60  in a state in which the pair of support bars  41  are supported by the support units  210 . When the pair of support bars  41  are inserted, the corner portions  44  are formed to contact the support fixing bodies  221 . The insertion fixing pieces  222  protrude at facing positions to fix both outer surfaces of the pair of support bars  41  at which the corner portions  44  connecting the extension bars  45  are in contact with the support fixing bodies  221  in a state in which the pair of support bars  41  are supported in the direction of the connecting bars  42 . The insertion fixing pieces  222  are inserted into the fixing spaces  223  and fixed in a state in which both surfaces of the pair of support bars  41  are supported, and the pair of support bars  41  are kept connected to each other. In addition, bent grooves  225  are formed to pass through the insertion fixing pieces  222  facing each other according to the shape of the elastic bodies  226 , except for portions at which the pair of support bars  41  are inserted. 
         [0123]    The side surface fixing pieces  224  protrude from the other side end of the insertion fixing pieces  222  facing each other, and have a shape to surround the outer surfaces, except for one side, in a state in which the extension bars  45  are inserted into the open one side when the support bars  41  are fixed. The side surface fixing pieces  224  protrude to surround the extension bars  45  inserted into one side of the insertion fixing pieces  222  facing each other and opened to the side surfaces. That is, when one sides of the pair of support bars  41  are supported by the support units  210  with the connecting bars  42  and the pair of support bars  41  are inserted in the direction of the fixing spaces  223 , the pair of support bars  41  and the extension bars  45  are fixed to the insertion fixing pieces  222  and the side surface fixing pieces  224 . Accordingly, the connecting bars  42  connecting the pair of support bars  41  and the support bars  41 , and the extension bars  45  connected to the corner portions  44  of the support bars  41  and extending in the direction of the main body  40  are simultaneously fixed. As a result, movement caused by movement of the shelf  50  is prevented, and the torsional stress generated by movement of the weight according to movement of the shelf  50  can be effectively distributed, improving the fixing force. 
         [0124]    As described above, the side surface fixing pieces  224  include side surface bodies  224   a , side surface support members  224   b , and side surface extension bodies  224   c , which protrude in the other side direction of the insertion fixing pieces  222  facing each other. The side surface bodies  224   a  protrude in the other side direction of the insertion fixing pieces  222  facing each other, and protrude from the support fixing bodies  221  in the other side direction such that the corner portions  44  are exposed to the outside when the support bars  41  are fixed. The side surface bodies  224   a  protrude to contact both outer surfaces of the pair of extension bars  45  via the corner portions  44  upon insertion of the support bars  41 . 
         [0125]    The side surface support members  224   b  protrude from the other side end of the side surface bodies  224   a  in the direction of the fixing spaces  223  facing each other, and contact the other side surfaces of the pair of extension bars  45  upon insertion of the support bars  41 . 
         [0126]    The side surface extension bodies  224   c  protrude from ends of the side surface support members  224   b  in the direction of the fixing spaces  223  to one side direction, and contact side surfaces of the extension bars  45  facing the side surface bodies  224   a  in the direction of the fixing spaces  223 . That is, the side surface bodies  224   a , the side surface support members  224   b  and the side surface extension bodies  224   c  are opened at one sides in communication with the fixing spaces  223  to surround the pair of extension bars  45  inserted through the corner portions  44 , except the one sides, and connect the extension bars  45 , respectively. 
         [0127]    When the shelf  50  in which a substance is accommodated is moved in the drawing-out and pushing-in direction, an acting point of the weight is varied according to the moved position, and thus torsional stress according to variation in the acting point is generated from the support fixing apparatuses  200  fixed to the pair of support bars  41 . That is, when the position of the weight is varied to vary the acting point, a load generating position is varied at the acting point. According to variation in the load generating position, the stress applied to the support fixing apparatuses  200  supporting the load is not applied in a uniform direction and size, and stress having a varied direction and size is generated according to variation in the acting point. The support fixing apparatuses  200  fix the slide rails  60  to the pair of support bars  41 . When the stress varied according to the fixed position is applied, the torsional stress applied in different directions is generated from the support fixing apparatuses  200 . The torsional stress is not applied in one direction but applied in various directions. In particular, the stress is further concentrated on positions of the connecting bars  42  of the pair of support bars  41 , which are ends in which an opening state and a closing state of the shelf  50  are maintained, and positions of the extension bars  45  connected to the corner portions  44 . Accordingly, the pair of support bars  41  are fixed by the support units  210  and the support fixing units  220 , and the torsional stress generated by surrounding and fixing the pair of support bars  41 , the connecting bars  42  and the extension bars  45  are effectively distributed in a state in which the pair of support bars  41  are connected to each other, and thus damage and deformation due to the torsional stress can be prevented to increase the lifespan. 
         [0128]    The elastic bodies  226  protrude from the insertion fixing pieces  222  facing each other in the direction of the fixing spaces  223 , and are partially connected to the insertion fixing pieces  222  to be moved by elasticity. The elastic bodies  226  protrude in the direction of the fixing spaces  223  to be integrally formed with the insertion fixing pieces  222  while partially connected by the bent grooves  225  of the insertion fixing pieces  222 . The elastic bodies  226  are moved in the direction of the insertion fixing pieces  222  by elasticity when the pair of support bars  41  are inserted, and when the pair of support bars  41  are inserted after movement, the elastic bodies protrude in the direction of the fixing spaces  223  to hook and fix the pair of support bars  41 . 
         [0129]    In addition, an operation of the slide rail fixing apparatus according to an embodiment of the present invention will be described with reference to  FIG. 16 . 
         [0130]      FIG. 16  is a use state view showing a state in which the slide rail fixing apparatus of  FIG. 11  is installed. 
         [0131]    Referring to  FIG. 16 , the fixing bars  46  are formed in plural at both side surfaces of the main body  40 , and the pair of support bars  41  are arranged in plural according to the number of shelves  50 . The connecting bars  42  connecting the support bars  41  are formed at one sides of the pair of support bars  41 , and the protrusions  43  protruding to be fixed to the fixing bars  46  are formed at one sides of the pair of support bars  41 . The extension bars  45  bent in the direction of the main body  40  and connected to the corner portions  44  are formed at the other side ends of the pair of support bars  41 , and the extension bars  45  are fixed to the fixing bars  46 . Accordingly, the pair of support bars  41  are respectively fixed to the fixing bars  46  by the protrusions and the extension bars  45  connected to the corner portions  44 . 
         [0132]    In order to fix the slide rails  60  after installation of the pair of support bars  41 , first, the connecting bars  42  are inserted into the support spaces  212  opened toward the other side and defined by the support protrusions  211   b  protruding from one sides of the support bodies  211   a  in the direction of the pair of support bars  41  and the support fixing bodies  211   c  protruding from ends of the support protrusions  211   b  in the direction of the support bars  41  to the other side. When the slide rails  60  are moved in the direction of the pair of support bars  41  after insertion of the connecting bars  42 , the pair of support bars  41  are inserted into the fixing spaces  223  formed between the insertion fixing pieces  222  facing each other and enabling insertion of the pair of support bars  41  of the support fixing bodies  221 . 
         [0133]    Here, the corner portions  44  are inserted into the side surface bodies  224   a  protruding from the insertion fixing pieces  222  facing each other in the other side direction, the side surface support members  224   b  protruding from ends of the side surface bodies  224   a  toward the fixing spaces  223  in facing directions, and the side surface extension bodies  224   c  protruding from ends of the side surface support members  224   b  in the one side direction. The extension bars  45  connected after insertion of the corner portions  44  are inserted inward. That is, when the pair of support bars  41  are inserted into the fixing spaces  223 , the extension bars  45  are simultaneously inserted into the side surface fixing pieces  224  with one sides open and the others surrounded. Accordingly, the extension bars  45  connected to the corner portions  44  can be fixed to the pair of support bars  41 . 
         [0134]    As described above, when the pair of support bars  41  are inserted into the fixing spaces  223 , the protruding elastic bodies  226  are pressed to elastically move in the direction of the insertion fixing pieces  222  to be easily inserted. After the insertion, the elastic bodies  226  protrude in the direction of the fixing spaces  223  facing each other, fixing the pair of fixing bars  46 . In addition, when the pair of support members  211  are fixed by the elastic bodies  226 , the extension bars  45  connected to the pair of support bars  41  by the corner portions  44  are fixed to connect the pair of support bars  41  to the support fixing bodies  221 , increasing the fixing force. 
         [0135]    As described above, when the slide rails  60  are fixed by the support fixing units  220 , the support bodies  211   a  are moved in the direction of the pair of support bars  41 , and both outer sides of the pair of support bars  41  are brought in contact with the support projections  213  projecting from the support members  211  to be supported at their positions, preventing movement. Accordingly, when the slide rails are fixed by the support fixing units  220 , the support members  211  are moved and the pair of support bars  41  are supported by the support projections  213 . As a result, the connecting bars  42  and the pair of support bars  41  inserted into the support spaces  212  are simultaneously supported to increase the support force. 
         [0136]    As described above, the connecting bars  42  and the pair of extension bars  45  formed at both ends of the pair of support bars  41  are fixed by the support fixing apparatuses  200  and the pair of support bars  41  are connected to each other at both sides, preventing movement thereof and preventing damage and deformation by effectively distributing the torsional stress generated due to movement of the shelf  50 . 
         [0137]    The foregoing description concerns an exemplary embodiment of the invention, is intended to be illustrative, and should not be construed as limiting the invention. The present teachings can be readily applied to other types of devices and apparatuses. Many alternatives, modifications, and variations within the scope and spirit of the present invention will be apparent to those skilled in the art. 
         [0138]    According to the present invention, a drawer slidable to accommodate and withdraw a substance is easily detachably installed at a main body of a home appliance such as a refrigerator or a dishwasher, cooking equipment such as an oven, and furniture for accommodating and storing various goods, improving use convenience.