Press-fit structure and food packaging wrap using same

Abstract

An embodiment relates to a press-fit structure for sealing fastened portions while detachably fastening a first member and a second member to each other, the improved press-fit structure including: a male seal formed to protrude to a predetermined length on the first member; a female seal formed on the second member in a groove shape corresponding to the length of the male seal, and configured such that the male seal is press-fitted thereinto; and air discharge portions formed in portions of the male seal, and configured to provide discharge paths for air inside the female seal during the process of press-fitting the male seal.

What is claimed is: 
     
         1 . A press-fit structure for sealing fastened portions while detachably fastening a first member and a second member to each other, the press-fit structure comprising:
 a male seal protruding to a predetermined length on the first member,   a female seal defined on the second member in a groove shape, the female seal being configured such that the male seal is press-fitted thereinto; and   air discharge portions defined in portions of the male seal and configured to provide discharge paths for air inside the female seal during a process of press-fitting the male seal.   
     
     
         2 . A packaging wrap comprising:
 a wrap main body having a soft plate having a predetermined area and elasticity, configured to be foldable;   a male seal protruding along a circumference of one half of one surface of the wrap main body;   a female seal defined in a groove shape along a circumference of a remaining half of the one surface of the wrap main body, and configured such that the male seal is press-fitted and coupled thereinto by folding of the wrap main body, or configured such that another male seal defined in another wrap main body is press-fitted and coupled to the female seal; and   air discharge portions defined in portions of the male seal, and configured to provide discharge paths for air inside the female seal during a process of press-fitting the male seal.   
     
     
         3 . The improved press-fit structure of  claim 2 , wherein:
 the male blades are formed to protrude on both sides in the widthwise direction of the male base; and   the air discharge recesses are formed on the male blades on both sides of the male base, and are symmetrical with respect to the male base.   
     
     
         4 . The improved press-fit structure of  claim 2 , wherein:
 the male blades are formed to protrude on both sides in the widthwise direction of the male base; and   the air discharge recesses are formed on the male blades on both sides of the male base and are asymmetrical with respect to the male base.   
     
     
         5 . The improved press-fit structure of  claim 2 , wherein the female seal comprises:
 a pair of female side walls formed to extend in a state of being spaced apart at a predetermined interval to form the groove in a space, and configured to come into close contact with the male blades; and   side wall hooks formed to protrude from the pair of female side walls, and configured to be caught on the male blades.   
     
     
         6 . The improved press-fit structure of  claim 1 , wherein the male seal extends while forming a curvature different from a curvature of the female seal. 
     
     
         7 . The improved press-fit structure of  claim 6 , wherein the male seal extends while forming a curvature of an arch or wave shape repeated a plurality of times. 
     
     
         8 . A food packaging wrap for packaging food in a sealed state, the food packaging wrap comprising:
 a wrap main body formed of a soft plate having a predetermined area and elasticity, allowed to be folded, and configured to be folded while accommodating food or to surround food while being combined with another plate;   a male seal formed to protrude along a circumference of one half of a circumference of one surface of the wrap main body;   a female seal formed in a groove shape along a circumference of a remaining half of the circumference of the one surface of the wrap main body, and configured such that the male seal is press-fitted and coupled thereinto by folding of the wrap main body, or a female seal formed in another wrap main body is press-fitted and coupled thereinto; and   air discharge portions formed in portions of the male seal, and configured to provide discharge paths for air inside the female seal during a process of press-fitting the male seal.   
     
     
         9 . The food packaging wrap of  claim 8 , wherein:
 the male seal comprises:   a male base formed to protrude along one half of a circumference of one surface of the wrap main body while forming a width narrower than a width of the groove constituting a portion of the female seal; and   one or more male blades formed to protrude on at least one of both sides in a widthwise direction of the male base while forming blade shapes having a width corresponding to a width of the groove constituting a portion of the female seal, and configured to come into close contact with side walls forming the groove of the female seal; and   the air discharge portions comprise:   one or more air discharge recesses formed in recess shapes in portions of the male blades so that a width of the male blades is narrowed, and configured to form one or more air discharge paths between the side walls that form the groove of the female seal.   
     
     
         10 . The food packaging wrap of  claim 9 , wherein the female seal comprises:
 a pair of female side walls formed to extend along a remaining half of the circumference of the one surface of the wrap main body in a state of being spaced apart at a predetermined interval to form the groove in a space, and configured to come into close contact with the male blades; and   side wall hooks formed to protrude from the pair of female side walls, and configured to be caught on the male blades.   
     
     
         11 . The food packaging wrap of  claim 8 , wherein:
 the female seal extends with a curvature of an arc shape corresponding to a circumference of one half of the wrap main body; and   the male seal extends along a circumference of one half of the wrap main body while forming a curvature of an arch or wave shape.   
     
     
         12 . The food packaging wrap of  claim 8 , further comprising foldable sealing portions provided in boundary portions between the male seal and the female seal and configured to seal folded portions when the wrap main body is folded. 
     
     
         13 . The food packaging wrap of  claim 12 , wherein each of the foldable sealing portions comprises:
 a sealing block formed to protrude in a boundary portion between the male seal and the female seal while forming a trapezoidal section; and   inclined sealing surfaces formed as inclined surfaces at ends of the male seal and the female seal, and configured to come into close contact with the sealing block when the wrap main body is folded.   
     
     
         14 . The food packaging wrap of  claim 13 , wherein each of the foldable sealing portions further comprises:
 block protrusions formed to protrude from a top of the sealing block, and configured to provide catch portions; and   protrusion holders formed in recess shapes on the inclined sealing surfaces, and configured to accommodate the block protrusions.