JP5968116B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box for packaging an article.

  2. Description of the Related Art Conventionally, a packaging box is known in which a tongue piece formed on an outer flap is pushed into an engagement hole portion of an inner flap and is prevented from coming off by a restoring elastic force of the tongue piece material (see Patent Document 1).

JP 2005-231648 A

  However, in Patent Document 1, it is necessary to put the tongue piece portion continuously provided when closing the outer flap into the engagement hole portion of the inner flap while adjusting the bending angle of the tongue piece portion after being bent. . For this reason, the number of work steps is increased, which increases the production cost.

  Moreover, even if such complicated work can be easily performed manually, it cannot be automated or mechanized.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a packaging box capable of closing a flap by a simple operation.

  In order to achieve the above object, the present invention provides a packaging box in which a flap for closing an opening is formed, wherein a protrusion is formed at a tip of the flap, and the protrusion is formed on a top surface of the packaging box. An engagement hole and a finger hook hole to be inserted are formed, and the finger hook hole is formed so as to avoid a region in which a side of the engagement hole on the finger hook hole side is extended to an end opposite to the opening. It is characterized by being.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging box which can close a flap by simple operation | work can be provided.

.
It is a figure explaining the packaging box which is one Embodiment of this invention. It is a figure explaining the packaging system which comprised the packaging box which implemented this invention as an inner box. It is a figure which shows the state which, after accommodating the partition plate 2, the packaging box 3, and the tray 4 in the individual packaging box 1, was covered with the partition part 1a. It is a figure which shows the state which bends the flap 302 in the boundary line 303, and the protrusion 305 is contact | abutting to the edge part by the side of the opening 300 of the top | upper surface 307. FIG. It is a figure which shows the state which the protrusion part 305 contact | abuts the edge | side by the side of the two finger hooking holes 309 of the engagement hole 308. FIG. It is a figure which shows the state which the protrusion part 305 is contact | abutting to the edge by the side of the opening 300 of the engagement hole 308. FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 2 is a diagram illustrating a packaging system in which a packaging box embodying the present invention is configured as an inner box.

  The packaging system in this embodiment is for packaging, for example, an interchangeable lens digital camera. As illustrated in FIG. 2, the packaging system according to the present embodiment includes an individual packaging box 1, a partition plate 2, a packaging box 3, and a tray 4. By putting the partition plate 2 in the individual packaging box 1, a space for accommodating the interchangeable lens is formed. The packaging box 3 stores accessories of the digital camera. The packaging box 3 is disposed on the bottom side in the individual packaging box 1. The tray 4 is formed of a synthetic resin such as polypropylene, the digital camera body is stored in the storage portion 4a, and the strobe unit is stored in the storage portion 4b. The tray 4 is disposed on the packaging box 3 in the individual packaging box 1. The packaging box 1 is formed with a partition 1a and a flap 1b.

  FIG. 3 is a diagram illustrating a state where the partition plate 2, the packaging box 3, and the tray 4 are stored in the individual packaging box 1 and then covered with the partition portion 1 a.

  As shown in FIG. 3, even when the flap 1b is closed, a space for storing an instruction manual or the like is formed between the partition 1a and the flap 1b even when the flap 1b is closed.

  FIG. 1 is a diagram illustrating a packaging box 3 as an embodiment of the present invention. FIG. 1A shows a state in which the flap 302 of the packaging box 3 is opened. FIG. 1B is a view of the packaging box 3 in the state of FIG.

  As shown in FIGS. 1A and 1B, the packaging box 3 is formed with an opening 300 for storing accessories of the digital camera and the like. A flap 302 is formed on the bottom surface 301 of the packaging box 3, and the flap 302 can close the opening 300 by bending the flap 302 at the boundary line 303. A protruding portion 305 and a finger hooking portion 306 are formed at the distal end portion 304 of the flap 302. The protrusion 305 is formed so as to protrude from the tip portion 304, and the finger hook portion 306 is formed so as to be recessed from the tip portion 304.

  As shown in FIGS. 1A and 1B, an engagement hole 308 and two finger hooking holes 309 are formed in the top surface 307 of the packaging box 3. The engagement hole 308 is formed on the opening 300 side of the top surface 307, and the two finger hooking holes 309 are formed substantially at the center in the contents storage direction. The engagement hole 308 has a substantially trapezoidal shape, and the two finger hooking holes 309 are formed side by side in a direction orthogonal to the content storage direction.

  When the flap 302 is bent at the boundary line 303 and the flap 302 closes the opening 300, the protrusion 305 is inserted into the engagement hole 308. Even if the force that bends the flap 302 is released after the protrusion 305 is inserted into the engagement hole 308, the protrusion 305 is locked in the engagement hole 308, and the flap 302 maintains the state in which the opening 300 is closed. To do.

  As shown in FIG. 1B, the width dimension of the side of the engagement hole 308 on the opening 300 side (opening side) is set to L1, and the two finger hooking holes 309 side (finger hooking holes) of the engaging hole 308 are set. The width dimension of the side) is set to L2. The width L1 of the engaging hole 308 is equal to the width W of the protrusion 305 or slightly larger than the width W of the protrusion 305. The width L2 of the engagement hole 308 is larger than the width L1 of the engagement hole 308.

  As illustrated in FIG. 1A and FIG. 1B, a notch 312 is formed between the top surface 307 and the two side surfaces 314 continuous to the top surface 307.

  As shown in FIG. 1B, a region a from the end of the top surface 307 on the opening 300 side to the side of the engagement hole 308 on the opening 300 side connects the two notches 312 at the top surface 307. The notch 312 is formed so as to be included in the region A from the line to the end of the top surface 307 on the opening 300 side.

  As shown in FIG. 1B, the two finger hooking holes 309 are arranged on the top surface 307 so that the side of the engagement hole 308 on the two finger hooking hole 309 side is opposite to the opening 300 on the top surface 307. It is formed avoiding the region B extending to the part.

  When taking out the packaging box 3 stored in the individual packaging box 1, it becomes easier to take out the packaging box 3 from the individual packaging box 1 by putting fingers into the two finger hooking holes 309.

  As shown in FIG. 1A, the chamfered portion 313 is formed at the end of the two side surfaces 314 on the opening 300 side and on the opposite side in the height direction from the portion where the notch 312 is formed. Is formed. When the packaging box 3 is stored in the individual packaging box 1, the chamfered portion 313 contacts the edge of the individual packaging box 1, so that the packaging box 3 is guided to an appropriate position in the individual packaging box 1.

  The state when the flap 302 is folded at the boundary line 303 and the flap 302 closes the opening 300 will be described with reference to FIGS.

  4A to 4C are views showing a state where the flap 302 is bent at the boundary line 303 and the protrusion 305 is in contact with the end of the top surface 307 on the opening 300 side. FIG. 4A is a view of the packaging box 3 in this state as viewed from the top surface 307. FIG. 4B is a diagram showing a CC cross section of FIG. FIG. 4C is a view of the packaging box 3 viewed from the flap 302 in this state. Since the dimension from the boundary line 303 to the tip part 304 is substantially equal to or smaller than the height dimension of the opening 300, the tip part 304 is formed on the lower surface of the top surface 307 as shown in FIG. It has entered.

  In the state shown in FIG. 4, when a force in the closing direction is applied to the flap 302, the protrusion 305 presses the region a of the top surface 307. As described above, the region a of the top surface 307 is included in the region A of the top surface 307. Since the region A of the top surface 307 is a region from the line connecting the two notches 312 to the end of the top surface 307 on the opening 300 side, the protrusion 305 presses the region a of the top surface 307, The region A of the top surface 307 is elastically deformed so as to warp upward.

  As a result, the protrusion 305 is inserted into the engagement hole 308, and the state shown in FIGS. 5A and 5B is obtained.

  FIG. 5A and FIG. 5B are views showing a state in which the protrusion 305 is in contact with the sides of the engagement holes 308 on the two finger hooking holes 309 side. FIG. 5A is a view of the packaging box 3 in this state as viewed from the top surface 307. FIG.5 (b) is a figure which shows CC cross section of Fig.5 (a).

  Since the width dimension of the side on the two finger hooking holes 309 side of the engagement hole 308 is sufficiently larger than the width dimension W of the protrusion 305, the protrusion 305 can be easily inserted into the engagement hole 308. In addition, since a predetermined clearance can be formed on both sides of the protrusion 305, the risk of damaging the side surface of the protrusion 305 when the protrusion 305 is inserted into the engagement hole 308 can be reduced.

  In the state shown in FIG. 5, when the force in the closing direction of the flap 302 is loosened, the flap 302 is deformed in the direction to open the opening 300 by the restoring force of the flap 302, and FIG. 6A and FIG. ).

  FIGS. 6A and 6B are views showing a state in which the protrusion 305 is in contact with the side of the engagement hole 308 on the opening 300 side. FIG. 6A is a view of the packaging box 3 in this state as viewed from the top surface 307. FIG.6 (b) is a figure which shows CC cross section of Fig.6 (a).

  Since the width dimension of the side of the engagement hole 308 on the opening 300 side is equal to the width dimension W of the protrusion 305 or slightly larger than the width dimension W of the protrusion 305, Clearance almost disappears. Therefore, in the state shown in FIG. 6A and FIG. 6B, the flap 302 is in a state of closing the opening 300 without play.

  When the flap 302 in the state shown in FIG. 6 is opened, the fingers 305 are respectively inserted into the two finger hooks 306 and the top surface 307 is pushed upward to engage the protrusion 305 and the engagement hole 308. To cancel. Further, a finger is put into each of the two finger rests 306, and a force in a direction to open the flap 302 is applied. Also by this, the protrusion 305 is deformed and the engagement between the protrusion 305 and the engagement hole 308 is released.

  Here, the reason for forming the two finger hooking holes 309 while avoiding the top surface 307 region B will be described. As described above, when the packaging box 3 stored in the individual packaging box 1 is taken out, the fingers are put into the two finger hooking holes 309 and the packaging box 3 is taken out from the individual packaging box 1, The periphery of the hole 309 is deformed so as to be pulled upward.

  If such finger hook holes are formed on the area B of the top surface 307, there is a possibility that deformation around the finger hook holes may reach the engaging holes 308 when the packaging box 3 is taken out from the individual packaging box 1. .

  When the deformation around the finger hook hole reaches the engagement hole 308, the engagement between the protrusion 305 and the engagement hole 308 is released, and the flap 302 is released. If the flap 302 is opened while the packaging box 3 is being taken out from the individual packaging box 1, accessories of the digital camera, etc. stored in the packaging box 3 will fall out of the packaging box 3 and damage the accessories. There is a risk to let them.

  In the present embodiment, in consideration of such points, the two finger holes 309 are formed avoiding the top surface 307 region B.

  Further, as illustrated in FIG. 6B, when the protrusion 305 is in contact with the side on the opening 300 side of the engagement hole 308, the flap 302 is at an angle of approximately 90 ° with respect to the bottom surface 301. Therefore, the amount that the protrusion 305 protrudes from the engagement hole 308 is maximized. Therefore, by inserting a finger into each of the two finger hooking holes 309 and taking out the packaging box 3 from the individual packaging box 1, the engagement between the protrusion 305 and the engagement hole 308 is maintained even if the top surface 307 is slightly pulled. Is done.

DESCRIPTION OF SYMBOLS 3 Packaging box 300 Opening 301 Bottom surface 302 Flap 305 Projection part 307 Top surface 308 Engagement hole 309 Finger hooking hole 310 Overhang part

Claims (5)

A packaging box formed with a flap closing the opening,
A protrusion is formed at the tip of the flap,
The top surface of the packaging box is formed with an engagement hole into which the protrusion is inserted and a finger hook hole,
The packaging box, wherein the finger hooking hole is formed avoiding a region in which a side of the engagement hole on the finger hooking hole side is extended to an end opposite to the opening. When the protrusion comes into contact with the side of the engagement hole on the finger hooking hole side, a predetermined clearance is formed on both sides of the engagement hole. The side width dimension is set,
The width dimension of the side on the opening side of the engagement hole is set so that the predetermined clearance is reduced when the protrusion comes into contact with the side on the opening side of the engagement hole. The packaging box according to claim 1. The engagement hole is formed so that an amount of the protrusion protruding from the engagement hole is maximized when the protrusion is in contact with the side of the engagement hole on the opening side. The packaging box according to claim 1 or 2. Notches are respectively formed between the top surface and two side surfaces continuous to the top surface,
The region from the opening-side end of the top surface to the opening-side edge of the engagement hole extends from the line connecting the notches to the opening-side end of the top surface. The packaging box according to any one of claims 1 to 3, wherein the packaging box is included in a region.   The packaging box according to any one of claims 1 to 4, wherein the packaging box is an inner box stored in an individual packaging box.

Images