KR102021387B1 - Corner unit for packing box - Google Patents

Abstract

A disclosed corner unit for a packing box includes a main body member, a first bending member, a first extending member, a second bending member and a second extending member. The first extending member and the second extending member bent by external force are respectively inserted into a first insertion hole and a second insertion hole after respectively passing through a penetration hole of the packing box. Therefore, the present invention is not required for a separate fixing means such as a bolt or the like and is possible to perform attachment and detachment with respect to the packing box in relatively fast time.

Description

Corner unit for packing box {Corner unit for packing box}

The present invention relates to a corner unit for a packaging box.

The packing box is a plate that is formed in a relatively thin sheet form is assembled with each other to form a certain space, and can accommodate a plurality of objects in the predetermined space, it is useful when moving or storing the plurality of items at once Will be.

These boxes are used in all areas of our lives, from industrial production to storage, exports as well as moving.

The packing box is to form a predetermined space for the purpose, so that the packing box is made of a structure that can be stacked with each other so that the space occupied by the packing box relatively.

As described above, it is a corner unit mounted at each corner of the packaging box so that the plurality of packaging boxes can be stacked on each other, and the positions of the packaging boxes loaded by the corner units can be aligned, It is possible to support the weight of the packing box and the items contained therein located on the top.

Examples of such corner units for packaging boxes are those of the patent document set forth below.

According to the patent document set forth below including a conventional corner unit for a packaging box, the corner box for the packaging box is a fitting body fitted at the top of the packaging box and bolts for fixing the fitting body to the corner of the packaging box, etc. It includes a fixing means, the operation of fixing the fitting body with the fixing means in a state in which the fitting body is fitted to each corner of the packaging box, as well as when the packaging box is damaged by an external impact, etc. In order to recycle the corner unit for the packaging box, the operation of separating from the packaging box takes a lot of time, thereby reducing the work efficiency.

In addition, due to the nature of the packaging box is subjected to a lot of external impact during the movement, the fastening force of the fitting body and the fixing means is weakened by the external impact, the fixing means is arbitrarily separated or the position of the fitting body is changed There was a problem.

Utility Model Registration No. 20-0481918, Registered Date: Nov. 21, 2016, Designated Name: Corner Reinforcement for Packaging Box Registered Room No. 20-0398289, Registered Date: 2005.10.05., Designation: Corner member for packing box

An object of the present invention is to provide a corner unit for a packaging box that can be mounted and detached in a relatively quick time to the packaging box, even though a fixing means such as a bolt is not required separately.

Corner unit for a packing box according to an aspect of the present invention is applied to the top of the corner formed by connecting two adjacent sides of each other of the plurality of sides constituting the packing box at a right angle, the neighboring of the packing box A first outer close contact with the outer side of any one of the two sides, a first protrusion projecting vertically from the first outer close contact with the inside of the packing box, and two adjacent sides of the packing box A main body member including a second outer close contact portion in close contact with the other outer side of the first outer close contact portion, and a second protrusion projecting vertically from the second outer close contact portion toward the inside of the packaging box; A first bending member that is bent from the first protrusion toward the lower side of the packing box so as to be formed in parallel with one of two neighboring side surfaces of the packing box; A first extension member extending from the first bending member along a imaginary extension line of the first bending member, the first extension member being bent at an angle with respect to the first bending member; A second bending member that is bent from the second protrusion toward the lower side of the packaging box and can be formed parallel to the other of the two adjacent sides of the packaging box that are parallel to the first bending member; And a second extension member extending from the second bending member along an imaginary extension line of the second bending member, the second extension member being bent at an angle with respect to the second bending member. A first insertion hole is formed, and a second insertion hole is formed in the second outer contact portion, and is bent with respect to the first extension member and the second bending member bent with respect to the first bending member by an external force applied from the outside. The second extension member is inserted into the first insertion hole and the second insertion hole after passing through the through-holes of the packing box, respectively, so that the main body member, the first bending member, and the first extension part are respectively inserted. The member, the second bending member and the second elongate member may be coupled to the packaging box.

According to the corner unit for packaging boxes which concerns on one side of this invention, as it contains a main body member, a 1st bending member, a 1st extension member, a 2nd bending member, and the said 2nd extension member, it is bent by external force. Since the first extension member and the second extension member are respectively inserted into the first insertion hole and the second insertion hole after passing through the through holes of the packing box, fixing means such as bolts are not required separately. However, there is an effect that the mounting and detachment to the packaging box can be made in a relatively fast time.

1 is a perspective view from above of a state in which a corner unit for a packaging box according to a first embodiment of the present invention is applied to a packaging box.
2 is a perspective view from above of a corner unit for a packing box according to a first embodiment of the present invention;
3 is a cross-sectional view of a corner unit for a packing box according to the first embodiment of the present invention.
4 is an enlarged view of a portion A of FIG. 3.
5 is an enlarged view of a portion B of FIG. 3.
6 is a cross-sectional view showing a state before the corner unit for the packaging box according to the first embodiment of the present invention is connected to the packaging box.
7 is a cross-sectional view showing a corner unit for a packaging box according to the first embodiment of the present invention connected to the packaging box.
8 is a perspective view from above of a corner unit for a packaging box according to a second embodiment of the present invention;
9 is an enlarged view illustrating an enlarged view of a first elastic body constituting a corner unit for a packing box according to a second exemplary embodiment of the present invention.
10 is an enlarged view of an enlarged view of a top view of a corner unit for a packing box according to a third embodiment of the present invention;

Hereinafter, a corner unit for a packaging box according to embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view from above showing a state where a corner unit for a packaging box according to a first embodiment of the present invention is applied to a packaging box, and FIG. 2 shows a corner unit for a packaging box according to a first embodiment of the present invention from above. 3 is a cross-sectional view of a corner unit for a packing box according to a first embodiment of the present invention, FIG. 4 is an enlarged view of a portion A of FIG. 3, and FIG. 5 is an enlarged view of a B portion of FIG. 3. 6 is a cross-sectional view showing a state before the corner unit for the packaging box according to the first embodiment of the present invention is connected to the packaging box, Figure 7 is a corner unit for the packaging box according to the first embodiment of the present invention This is a cross-sectional view showing the connection to the box.

1 to 7 together, the corner unit 100 for the packing box according to the present embodiment is formed on the top of the corner formed by connecting the two sides adjacent to each other at right angles of the plurality of sides constituting the packing box. As applied, it includes a main body member 110, a first bending member 120, a first extension member 130, a second bending member and a second extension member 135.

The main body member 110, the first bending member 120, the first extension member 130, the second bending member 125 and the second extension member 135 may be subjected to injection molding. It is made in one piece.

In general, since four corners of the packing box are formed, four corner units 100 for the packing box are also applied to one packing box.

The body member 110 may include a first outer contact portion 111 in close contact with an outer side of one of two neighboring side surfaces of the packaging box, and an inside of the packaging box in the first outer contact portion 111. The first protrusion 112 projecting vertically toward the second side and the second outer contact portion 113 closely contacted with the outer side of the other one of the two adjacent sides of the packing box, which is in close contact with the first outer contact portion 111. ) And a second protrusion 114 projecting vertically from the second outer contact portion 113 toward the inside of the packaging box.

In the present embodiment, the body member 110 further includes a corner portion 115, a first inner close contact portion 116, and a second inner close contact portion 117.

In this embodiment, for convenience of description, one of two adjacent sides of the packing box and the first outer contact part 111 are in close contact with each other is defined as a first side sheet part 10, and the packing box The second side sheet portion 20 is defined as being in contact with the other one of the two side surfaces adjacent to each other.

In addition, the first side sheet portion 10 is coupled to the first sheet body 11 made of plastic corrugated cardboard or the like, and having an 'c'-shaped cross section at an upper surface of the first sheet body 11. The 1st reinforcement body 12 which reinforces the 1st sheet body 11 is included.

The second side sheet portion 20 is coupled to the second sheet body 21 made of plastic corrugated cardboard or the like, and has a 'c' shape cross section at an upper surface of the second sheet body 21 to form the second sheet 21. A second reinforcing body 22 for reinforcing the sheet body 21 is included.

The first outer contact portion 111 is formed in a plate shape of a predetermined area, as shown in Figure 3 is in close contact with the outer side of the first reinforcing body (12).

The first outer contact portion 111 is formed with a first insertion hole 118 into which the first extension member 130 can be inserted.

The first outer contact portion 111 is positioned so that a portion thereof is raised higher than the height of the first reinforcement 12, and the other one loaded on the upper part of the packing box to which the body member 110 is applied. Is partially in close contact with the side of the packaging box of, the first protrusion 112 is spaced apart from the upper surface of the first outer contact portion 111 by a predetermined distance to the upper surface of the first reinforcement (12). .

Then, the lower part of the other packing box which is loaded on the upper part of the packing box to which the main body member 110 is applied is seated on the first protrusion 112 while being in close contact with the first outer contact part 111. In this case, the loading position can be fixed.

The second outer contact portion 113 is formed in a plate shape of a predetermined area and is in close contact with the outer side of the second reinforcement body 22.

A second insertion hole 119 into which the second extension member 135 may be inserted is formed in the second outer contact portion 113.

The second outer contact portion 113 is positioned so that a portion thereof is raised higher than the height of the second reinforcement body 22, and the other one loaded on the top of the packing box to which the body member 110 is applied. Is partially in close contact with the side of the packaging box, the second protrusion 114 is spaced apart from the upper surface of the second outer contact portion 113 by a predetermined distance to the upper surface of the second reinforcement (22). .

Then, the lower part of the other packing box which is loaded on the upper part of the packing box to which the main body member 110 is applied is seated on the second protrusion 114 while being in close contact with the second outer contact part 113. In this case, the loading position can be fixed.

As described above, a lower portion of the other packing box loaded on the upper part of the packing box to which the main body member 110 is applied is seated on the first protrusion 112 and the second protrusion 114. A portion of the outer contact portion 111 and a portion of the second outer contact portion 113 closely adhere to two sides of the other packing box loaded on the upper portion of the packaging box to which the body member 110 is applied. As a result, the packing box to which the main body member 110 is applied and the other packing box to be stacked on top of the packing box to which the main body member 110 is applied may be stacked while being aligned with each other in a vertical direction.

The corner portion 115 connects the first protrusion 112 and the second protrusion 114 vertically, and is formed in a shape corresponding to the corner of the packing box.

Then, the corner 115, the first protrusion 112, and the second protrusion 114 are connected to each other, and are formed in a '-' shape as a whole.

The first inner close contact portion 116 is formed in a plate shape of a predetermined area and protrudes vertically downward from a point where the corner portion 115 meets one of the first protrusions 112 to be adjacent to each other of the packing box. It is in close contact with the inner side of the first side sheet portion 10 which is in close contact with the first outer contact portion 111 of the two sides.

The first inner contact portion 116 is vertically protruded downward with the first bending member 120 from the end of the first protrusion 112 is disposed side by side next to the first bending member 120, Portions are separated from each other so that the first bending member 120 can be bent.

The second inner close contact portion 117 protrudes vertically downward from a point where the corner protrusion 115 meets one of the second protrusions 114, so that the second outer close contact portion of the two adjacent sides of the packing box is adjacent to each other. The portion 113 is in close contact with the inside of the second side sheet portion 20 that is in close contact.

The second inner close contact portion 117 is vertically protruded downward with the second bending member 125 from the end of the second protrusion 114 is disposed side by side next to the second bending member 125, Portions of the second bending members 125 are separated from each other so that the second bending members 125 may be bent.

As described above, the first inner close contact portion 116 and the second inner contact portion is vertically connected to each other at a position corresponding to the corner of the packaging box, the body member 110 is located at the corner of the packaging box Can be.

The first bending member 120 is bent toward the lower side of the packing box at the first protrusion 112 so as to be parallel to the first side seat part 10 which is one of two adjacent sides of the packing box. It can be formed.

In detail, the first bending member 120 includes a first bending plate 121 formed in a plate shape having a predetermined area, and the first bending plate 121 is bent relative to the first protrusion 112. And a first space securing groove 122 formed in a predetermined space between the first bending plate 121 and the first protrusion 112.

In this embodiment, the first bending plate 121 is bent in a counterclockwise direction with respect to the first protrusion 112 based on the direction shown in FIG. 6.

The first bending member 120 is formed in a state in which the first bending member 120 is perpendicular to the first protrusion 112 without a predetermined space between the first bending member 120 and the first protrusion 112. When the 120 is bent, the first bending member 120 or the first protrusion 112 may be damaged while the interference with the first protrusion 112 is generated. The first space securing groove 122 As a result of this formation, it is possible to form a predetermined space so that the first bending member 120 can be bent without interference between the first bending member 120 and the first protrusion 112.

The first space securing groove 122 is formed to a depth deeper than half the thickness of the first bending plate 121. As a result, the size of the first space securing groove 122 may be relatively large, and accordingly, the first bending plate 121 may be bent to a relatively larger angle.

The first space securing groove 122 is formed to be inclined so that the cross section of the groove gradually increases from the inner side to the outer side thereof, thereby preventing interference with the first protrusion 112 when the first bending plate 121 is bent. To be possible.

In addition, the deepest portion of the first space securing groove 122 is formed in the shape of a 'U' cross section.

Then, the first bending plate 121 is bent counterclockwise with respect to the first protrusion 112 until the 'U' of the deepest portion of the first space securing groove 122 is bent by an external force. When the first space securing groove 122 is elastically deformed, and when the external force is removed, the first space securing groove 122 that has been elastically deformed is returned to its original state, thereby causing the first bending plate 121 to be removed. The close contact with the first side sheet portion 10 can be easily performed.

The first extension member 130 may extend along the imaginary extension line of the first bending member 120 from the first bending member 120, and may be bent at an angle with respect to the first bending member 120. It is.

In detail, the first extension member 130 is fixed so that the first extension plate 131 and the first extension plate 131 are bent relative to the first bending member 120. And a first extension member side groove 134 formed in the shape of a groove of depth.

The first extension plate 131 has a predetermined area and is formed at the center thereof, and is spaced apart from the first central body 132 at both sides of the first central body 132. A first elastic deformable body 133 is formed to be spaced apart and elastically deformed with respect to the first central body 132.

A first protrusion (not shown) is formed at the distal end of each of the first elastic deformable bodies 133 to protrude a predetermined length in the outward direction.

When the first extension plate 131 is inserted into the first insertion hole 118, an external force is applied to the first elastic deformable body 133, so that the first elastic deformable body 133 is formed in the first central body ( 132, and at this time, a restoring force is accumulated in the first elastic deformable body 133.

When the external force is removed after the first extension plate 131 is inserted into the first insertion hole 118, the first extension plate 131 is returned to its original state by the restoring force of the first elastic deformable body 133. As the projections are caught by the first insertion holes 118, respectively, the first extension plate 131 can be maintained in the state of being inserted into the first insertion holes 118.

The first extending member side groove 134 may be bent clockwise with respect to the first bending member 120 with respect to the direction shown in FIG. 6, and the first extending member side groove 134 may be The first extension plate 131 is a reference position at which the first extension plate 131 is bent.

The first extension member side groove 134 is formed to have a depth deeper than half the thickness of the first extension plate 131. Then, the size of the first extension member side groove 134 can be formed relatively large, so that the first extension plate 131 can be bent to a relatively larger angle.

The second bending member 125 is bent from the second protrusion 114 toward the lower side of the packing box, so that the second bending member 125 is different from the parallel to the first bending member 120 of two neighboring sides of the packing box. It can be formed in parallel with.

In detail, the second bending member 125 may include a second bending plate 126 formed in a plate shape having a predetermined area, and the second bending plate 126 may be bent with respect to the second protrusion 114. And a second space securing groove 127 formed in a predetermined space between the second bending plate 126 and the second protrusion 114.

In the present exemplary embodiment, the second bending plate 126 may be half with respect to the second protrusion 114 in the same way that the first bending plate 121 is bent counterclockwise with respect to the first protrusion 112. Bend clockwise.

The second bending member 125 is formed in a state in which the second bending member 125 is formed perpendicular to the second protrusion 114 without a predetermined space between the second bending member 125 and the second protrusion 114. When the 125 is bent, the second bending member 125 or the second protrusion 114 may be damaged while the interference with the second protrusion 114 is generated. By being formed, a predetermined space may be formed so that the second bending member 125 may be bent without interference between the second bending member 125 and the second protrusion 114.

The second space securing groove 127 is formed to a depth deeper than half the thickness of the second bending plate 126. Then, the size of the second space securing groove 127 can be formed relatively large, and thus the second bending plate 126 can be bent to a relatively larger angle.

The second space securing groove 127 is formed to be inclined so that the cross section of the groove gradually increases from the inner side to the outer side so that the interference with the first protrusion 112 is prevented when the first bending plate 121 is bent. To be possible.

In addition, the deepest portion of the second space securing groove 127 is formed in the shape of a 'U' cross section.

Then, the second bending plate 126 is bent counterclockwise with respect to the second protrusion 114 until the 'U' of the deepest portion of the second space securing groove 127 is bent by an external force. When the second space securing groove 127 is elastically deformed, and when the external force is removed, the second space securing groove 127 that has been elastically deformed is returned to its original state, thereby causing the second bending plate 126 to be removed. The close contact with the second side sheet portion 20 can be easily performed.

The second extension member 135 may extend along the imaginary extension line of the second bending member 125 from the second bending member 125, and may be bent at an angle with respect to the second bending member 125. It is.

In detail, the second extension member 135 is fixed so that the second extension plate 136 and the second extension plate 136 are bent relative to the second bending member 125. And a second extension member side groove 139 formed in the shape of a groove of depth.

The second extension plate 136 has a predetermined area and is formed at the center thereof, and is spaced apart from the second central body 137 at both sides of the second central body 137. And a second elastic deformable body 138 formed spaced apart and elastically deformed with respect to the second central body 137.

At the distal end of each of the second elastic deformable bodies 138, a second protrusion (not shown) protruding a predetermined length in the outward direction is formed.

When the second extension plate 136 is inserted into the second insertion hole 119, an external force is applied to the second elastic deformable body 138, so that the second elastic deformable body 138 is formed in the second central body ( 137), and at this time, a restoring force is accumulated in the second elastic deformable body 138.

If the external force is removed after the second extension plate 136 is inserted into the second insertion hole 119, the second extension plate 136 is returned to its original state by the restoring force of the second elastic deformable body 138. As the projections are locked to the second insertion holes 119, respectively, the second extension plate 136 may be maintained in the state of being inserted into the second insertion holes 119.

The second elongate member side groove 139 is disposed with respect to the second bent member 125 in the same manner as the first elongated member side groove 134 is bent clockwise relative to the first bent member 120. It can be bent clockwise, and the second extension member side groove 139 is a reference position at which the second extension plate 136 is bent.

The second extension member side groove 139 is formed to a depth deeper than half the thickness of the second extension plate 136. Then, the size of the second extension member side groove 139 can be formed relatively large, so that the second extension plate 136 can be bent to a relatively larger angle.

As the corner unit 100 for the packing box is formed as described above, the first extension member 130 and the second bending member bent relative to the first bending member 120 by an external force applied from the outside. The second extension member 135 bent with respect to 125 is inserted into the first insertion hole 118 and the second insertion hole 119 after passing through the through holes of the packing box, respectively. The body member 110, the first bending member 120, the first extending member 130, the second bending member 125 and the second extending member 135 are coupled to the packing box. It becomes possible.

Here, the first extension plate 131 and the second extension plate 136 are inserted into the through holes of the packaging box formed at different positions, respectively.

That is, the through hole of the packing box through which the first extension plate 131 penetrates is formed in the first side sheet part 10, and the through hole of the packing box through which the second extension plate 136 penetrates. Is formed in the second side sheet portion 20.

As shown in FIG. 6, the first extension plate 131 formed in a predetermined area should be bent at an angle clockwise with respect to the first bending plate 121 in order to be inserted into the through hole of the packing box. As the first extension plate 131 is bent in a clockwise direction, the first bending plate 121 connected to the first extension plate 131 is also bent in a counterclockwise direction with respect to the first protrusion 112. A predetermined space is formed between the first bending plate 121 and the first reinforcement 12.

That is, in order for the first extension plate 131 to be inserted into the through hole of the packaging box, the first bending plate (ie, the oblique angle between the first protrusion 112 and the first bending plate 121 is obtuse). 121 must be bent, and the angle between the first bending plate 121 and the first extension plate 131 is the first extension plate 131 with respect to the first bending plate 121 bent to be an acute angle. ) Should be bent, and by this bending of the first bending plate 121 and the first extension plate 131, the extension member, more precisely the extension plate, After passing through the through hole, the first insertion hole 118 may be inserted into the packing box.

The second bending plate 126 and the second extension plate 136 are also bent in the same form as the first bending plate 121 and the first extension plate 131, and pass through the through-hole of the packing box. After being inserted into the second insertion hole 119 to be coupled to the packing box, a detailed description of the bending of the second bending plate 126 and the second extension plate 136 is described in the first bending plate. It replaces with description of 121 and the said 1st extension plate 131. As shown in FIG.

Hereinafter, a method of joining the corner unit 100 for a packing box according to the present embodiment will be briefly described with reference to the drawings.

First, the corner unit 100 for the packing box is inserted from the top of the corner of the packing box to the bottom.

In this case, as shown in FIG. 2, the first extension member 130 is formed while forming the same plane as the first bending member 120 vertically connected downward from the first protrusion 112. The second extension member 135 is also formed in the same plane as the second bent member vertically connected downward from the second protrusion 114.

Then, an external force is applied so that the distal end of the first extension plate 131 faces the first insertion hole 118 so that the first extension plate 131 is clockwise with respect to the first bending plate 121. Bend at a certain angle.

At this time, as the first extension plate 131 is bent clockwise with respect to the first bending plate 121, the first bending plate 121 connected to the first extension plate 131 may also be The first protrusion 112 is bent together in a counterclockwise direction, that is, in a direction away from the first reinforcement 12.

Then, the first extension plate 131 is sequentially inserted into the through hole of the packing box and the first insertion hole 118.

Then, an external force is applied so that the distal end of the second extension plate 136 faces the second insertion hole 119 so that the second extension plate 136 is clockwise with respect to the second bending plate 126. Bend at a certain angle.

At this time, as the second extension plate 136 is bent clockwise with respect to the second bending plate 126, the second bending plate 126 connected to the second extension plate 136 is also It is bent together against the second protrusion 114 in a counterclockwise direction, that is, in a direction away from the second reinforcement 22.

Thereafter, the second extension plate 136 is sequentially inserted into the through hole of the packing box and the second insertion hole 119.

The first extension plate 131 is inserted into the through hole of the packing box and the first insertion hole 118, and the second extension plate 136 is inserted into the through hole of the packing box and the second insertion hole ( 119, the main body member 110, the first bending member 120, the first extending member 130, the second bending member 125, and the second extending member 135. ) Can be coupled to the packaging box.

As described above, the packing unit corner unit 100 includes the main body member 110, the first bending member 120, the first extension member 130, and the second bending member 125. And the second extension member 135 and the first extension member 130 and the second extension member 135 that are bent by an external force, respectively, via the through holes of the packing box. By inserting into the first insertion hole 118 and the second insertion hole 119, respectively, fixing means such as bolts are not required separately, but mounting and dismounting of the packing box can be made in a relatively fast time. .

Hereinafter, a corner unit for a packing box according to other embodiments of the present invention will be described with reference to the drawings.

In carrying out this description, the description overlapping with the contents already described in the above-described first embodiment of the present invention will be replaced with, and will be omitted herein.

8 is a perspective view from above of a corner box for a packaging box according to a second embodiment of the present invention, Figure 9 is a view of a first elastic body constituting a corner box for a packaging box according to a second embodiment of the present invention It is an enlarged view.

8 and 9 together, in the present embodiment, the corner unit 200 for the packing box includes the main body member 210, the first bending member 220, the first extension member 230, and the second. A bending member 225 and a second extension member 235, and the first bending member 220 includes a first bending plate 221, a first space securing groove 222, and a first elastic body 223. It includes.

The first elastic body 223 is elastically deformed while protruding a predetermined length from the top of the first space securing groove 222 to the bottom.

The first elastic body 223 may be made of a material such as rubber or silicon to facilitate elastic deformation.

When the first bending plate 221 is bent by an external force as described above, the first bending plate 221 presses the first elastic body 223 so that a restoring force is applied to the first elastic body 223. When the external force is accumulated and the external force is removed, the restoring force of the first elastic body 223 pushes the first bending plate 221 in a direction opposite to the direction in which the first bending plate 221 is bent by the external force, and thus, the first bending plate ( The bending of the first bending plate 221 may be released and be brought into close contact with the first side sheet part 10 even with only an external force relatively smaller than the external force when bending 221.

The second bending member 225 includes a second bending plate 226, a second space securing groove 227, and a second elastic body 228.

The second elastic body 228 is elastically deformed while protruding a predetermined length from the upper portion of the second space securing groove 227 to the lower portion.

The second elastic body 228 may be made of a material such as rubber or silicon to facilitate elastic deformation.

As described above, when the second bending plate 226 is bent by an external force, the second bending plate 226 presses the second elastic body 228 so that a restoring force is applied to the second elastic body 228. When the external force is accumulated and the external force is removed, the restoring force of the second elastic body 228 pushes the second bending plate 226 in a direction opposite to the direction in which the second bending plate 226 is bent by the external force, and thus, the second bending plate ( It is possible to release the bending of the second bending plate 226 to be in close contact with the second side sheet portion only by an external force relatively small compared to the external force when bending 226.

Hereinafter, a corner unit for a packing box according to another embodiment of the present invention will be described with reference to the drawings.

In carrying out this description, descriptions overlapping with those already described in the above-described first and second embodiments of the present invention will be replaced by the description thereof, and will be omitted herein.

10 is an enlarged view illustrating an enlarged view of a corner box for a packaging box according to a third embodiment of the present invention from above.

Referring to FIG. 10, in the present embodiment, the corner unit for the packing box includes a main body member, a first bending member, a first extension member, a second bending member, a second extension member, and a first separation prevention part ( 340 and a second separation prevention portion 341.

The first separation prevention part 340 is coupled to the first inner contact part 316 and is formed to have a predetermined length toward the first bending member to cover a portion of the first bending member.

The first separation prevention part 340 may be made of rubber or silicon, and may be elastically deformed in a vertical direction with respect to the length direction of the first separation prevention part 340.

In a state where an external force for bending the first bending member is not applied to the first bending member, the first separation preventing part 340 covers a portion of the first bending member, more precisely, the first bending plate 321. While fixing the position of the first bending plate 321, it is possible to maintain the state in which the first bending plate 321 is in close contact with the first side sheet portion of the packaging box, and thus the first bending member And the first extension member can be prevented from being separated from the packaging box.

Then, an external force for bending the first bending member is applied to the first bending member such that the first bending member, more precisely, the first bending plate 321 is bent together toward the side away from the first side sheet portion. Although the first separation prevention part 340 encounters a portion covering the first bending plate 321, the portion of the first separation prevention part 340 covering the first bending plate 321 may be formed in the first separation prevention part 340. Since the first bending plate 321 is bent toward the bending direction, the bending motion of the first bending plate 321 becomes possible.

Here, the external force for bending the first bending member is applied externally to bend the first extension member, more precisely the first extension plate.

The second separation prevention part 341 is coupled to the second inner close contact part and is formed to have a predetermined length toward the second bending member to cover a portion of the second bending member.

The second separation prevention part 341 may be made of a material such as rubber or silicone, and may be elastically deformed in a direction perpendicular to the length direction of the second separation prevention part 341.

In a state where an external force for bending the second bending member is not applied to the second bending member, the second separation preventing part 341 covers a portion of the second bending member, more precisely, the second bending plate 326. While fixing the position of the second bending plate 326 while maintaining the state in which the second bending plate 326 is in close contact with the second side sheet portion of the packaging box, and thus the second bending member And the second extension member can be prevented from being separated from the packaging box.

Then, an external force for bending the second bending member is applied to the second bending member such that the second bending member, more precisely, the second bending plate 326, is bent together toward the side away from the second side sheet portion. Even when the second separation prevention part 341 encounters the part covering the second bending plate 326, the part covering the second bending plate 326 of the second separation prevention part 341 is not included. Since the second bending plate 326 is bent toward the bending direction, the bending motion of the second bending plate 326 is enabled.

Here, the external force for bending the second bending member is applied externally to bend the second extension member, more precisely the second extension plate.

While the invention has been shown and described with respect to specific embodiments thereof, those skilled in the art can vary the invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated that modifications and changes can be made. Nevertheless, it will be clearly understood that all such modifications and variations are included within the scope of the present invention.

According to a corner unit for a packing box according to an aspect of the present invention, the first insertion member and the second extension member are bent by an external force and pass through the through-holes of the packing box, respectively. By being inserted into each of the second insertion holes, fixing means such as bolts are not required separately, but since the mounting and dismounting of the packing box can be made in a relatively fast time, the industrial applicability thereof is high.

100: corner unit for packing box
110: body member
120: first bending member
125: second bending member
130: first extension member
135: second extension member

Claims (5)

As the two sides adjacent to each other among the plurality of sides constituting the packaging box are applied to the upper end of the corner formed by connecting at a right angle,
A first outer close contact portion in close contact with one of two neighboring side surfaces of the packing box, a first protrusion projecting vertically from the first outer close contact portion toward the inside of the packaging box, and the packaging box A second outer contact part which is in close contact with the other of the two adjacent sides of the first outer contact part which is in close contact with the other, and a second projecting perpendicularly from the second outer contact part toward the inside of the packing box; A body member comprising a protrusion;
A first bending member that is bent from the first protrusion toward the lower side of the packing box so as to be formed in parallel with one of two neighboring side surfaces of the packing box;
A first extension member extending from the first bending member along a imaginary extension line of the first bending member, the first extension member being bent at an angle with respect to the first bending member;
A second bending member that is bent from the second protrusion toward the lower side of the packaging box and can be formed parallel to the other of the two adjacent sides of the packaging box that are parallel to the first bending member;
And a second extension member extending from the second bending member along an imaginary extension line of the second bending member, the second extension member being bent at an angle with respect to the second bending member.
A first insertion hole is formed in the first outer contact part, a second insertion hole is formed in the second outer contact part,
The first extension member bent with respect to the first bending member and the second extension member bent with respect to the second bending member by an external force applied from the outside respectively pass through the through holes of the packing box. The main body member, the first bending member, the first extension member, the second bending member and the second extension member are coupled to the packaging box by being inserted into the first insertion hole and the second insertion hole, respectively. Corner unit for a packaging box, characterized in that can be. The method of claim 1,
The body member
A corner portion connecting the first protrusion and the second protrusion vertically;
A first inner contact part which protrudes vertically downward from a point where the corner part meets the corner part of the first protrusions, and is in close contact with an inner side of the first outer contact part that is in close contact with each other of the neighboring sides of the packing box;
A second inner contact part which protrudes vertically downward from a point where the corner part meets the corner part of the second protrusion part, and is in close contact with an inner side of the second outer contact part that is in close contact with each other of two adjacent sides of the packing box,
The first inner close contact portion and the second inner end portion is connected to each other perpendicular to the position corresponding to the corner of the packaging box, so that the main body member can be located at the corner of the packaging box Corner unit. The method of claim 2,
The first bending member is
A first bending plate formed in a plate shape having a predetermined area;
A first space securing groove formed in a predetermined space between the first bending plate and the first protrusion so that the first bending plate is bent relative to the first protrusion,
The second bending member is
A second bending plate formed in a plate shape having a predetermined area;
A second space securing groove formed in a predetermined space between the second bending plate and the second protrusion so that the second bending plate is bent relative to the second protrusion,
The first space securing groove is formed to a depth deeper than half the thickness of the first bending plate,
The second space securing groove is a corner box for a packaging box, characterized in that formed in a depth deeper than half the thickness of the second bending plate. The method of claim 3, wherein
The first extension member
A first extension plate formed in a plate shape having a predetermined area;
A first extension member side groove formed in a groove shape having a predetermined depth such that the first extension plate is bent relative to the first bending member;
The second extension member
A second extension plate formed in a plate shape having a predetermined area;
A second extension member side groove formed in a groove shape having a predetermined depth such that the second extension plate is bent relative to the second bending member;
The first extension member side groove is formed to a depth deeper than half the thickness of the first extension plate,
And the second extension member side groove is formed with a depth deeper than the half thickness of the second extension plate. The method of claim 4, wherein
The first bending member is
Further comprising a first elastic body elastically deformed while protruding a predetermined length from the upper portion of the first space securing groove to the lower portion,
The second bending member is
And a second elastic body elastically deformed while protruding a predetermined length from an upper portion of the second space securing groove to a lower portion,
When the first bending plate is bent by an external force, the first bending plate presses the first elastic body, and a restoring force is accumulated in the first elastic body,
When the external force is removed, the restoring force of the first elastic body is to push the first bending plate in the direction opposite to the direction bent by the external force,
When the second bending plate is bent by an external force, the second bending plate presses the second elastic body, and a restoring force is accumulated in the second elastic body,
When the external force is removed, the restoring force of the second elastic body pushes the second bending plate in a direction opposite to the direction bent by the external force.

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