JP3104791U - Lid holder for cardboard boxes - Google Patents

Abstract

An object of the present invention is to provide an easy-to-use and durable lid for temporarily fixing a state in which an obstructing lid flap is folded outward and attached to the outer surface of a box when an article is put in and taken out of a cardboard box. Provide the holder as inexpensively as possible.
A vertically thick plate that is long and thin in the horizontal direction has an outer shape that is bent into an L shape when viewed from above, and a lid flap in a folded state is sandwiched on the bottom end surface thereof together with a side wall of the box. Is provided in a cut shape over the entire length of the bottom end surface.
The sandwiching slit may be formed so as to be narrowed at least partially toward the closed back end. Further, it is preferable to form a ventilation hole from the top end surface to the slit for insertion.
It is also characterized in that it is made into an integral structure, for example, by injection molding plastic as a raw material.
[Selection diagram] Fig. 1

Description

  The present invention is a detachable, detachable and repetitive way to temporarily fix the lid flap, which is in the way of getting in and out of the cardboard box, out of the way and place it along the outer surface of the box. The present invention relates to a lid holder for a cardboard box that can be used.

  A cardboard box with a lid flap extended on each upper edge of the four peripheral walls of the box via folds is lightweight, inexpensive, heat insulating, foldable and deployable, easy to process after disposal, after disposal It has many advantages, such as being recyclable on paper, and is therefore widely used in various industrial fields.

However, the cardboard box having the above-described configuration and advantages still has room for improvement in terms of usability.
That is, when putting goods in and out of the cardboard box, even if one tries to keep each of the four lid flaps obstructing each other in a state of being turned outward, the lid flaps move in the direction in which the lid is closed. Due to the quirks, there is a tendency that simply pushing outwards tends to return to the direction in which the lid is closed.

If the user tries to put items in and out of the cardboard box in such a state, the operation is time-consuming because of the obstruction of the lid flap.
This is especially true when putting and removing many different items in one box, such as moving luggage.

  Therefore, there are already several methods for temporarily fixing a state in which the lid flap is folded back outward and applied to the outer surface of the box, and is out of the way, before putting in and out the goods. I have.

For example, as a relatively simple method, four lid flaps folded outward and applied to the outer surface of the box may be tied together by wrapping them with rubber bands, or each individual lid flap may be , Using adhesive tape to secure it to the outside of the box.
However, such a method is not a very rational method because the operation of winding the rubber band is troublesome and it takes a considerable amount of time and effort to stick and peel off the adhesive tape one by one.

  Therefore, as a more advanced method, for example, Japanese Unexamined Patent Application Publication No. 11-292027 discloses a “corrugated cardboard box opening maintaining tool” having the form shown in FIG. 5 and using the method shown in FIG. Have been.

The structure of the opening maintaining device 50 is such that the upper end of the bar material 51, which is slightly shorter than the depth dimension of the lid flap 61 of the cardboard box 60, is bent to form a corner of the upper edge of the cardboard box 60 as shown in the upper right of FIG. A hook portion 51a for hooking at a corner is provided.
At the lower end of the bar material 51, an L-shaped strip is used to press together two adjacent lid flaps 61, which have been folded outward and applied to the side wall 62 of the cardboard box 60, to hold them together. A holding member 52 having a bent shape is attached.
Further, a handle 53 is attached to the bar 51.

JP-A-11-292027 JP-A-9-228667 JP-A-10-129770 Registered Utility Model Publication No. 30372284

  The "opening maintenance device for a cardboard box" of the above-mentioned "JP-A-11-292027" is unique, but because of its shape, the outer shape is too bulky, inconvenient to handle, and the state of mounting on the box is somewhat unstable. There are considerable disadvantages such as high production cost, inconvenience in storage and transportation, and the like.

  Accordingly, an object of the present invention is to substantially eliminate the above-mentioned considerable drawbacks of existing products and to provide a cardboard box lid holder with greatly improved usability as low as possible.

To achieve the above object, the lid holder according to the present invention is:
It is used to temporarily fix a state in which the lid flap is turned outward and becomes attached to the outer surface of the box, which is an obstacle when putting goods in and out of the cardboard box,
It has an outer shape that is obtained by bending a long vertically thick plate in the horizontal direction into an L shape when viewed from the top, and has a bottom end face on which a lid flap in a folded state is sandwiched together with a side wall of the box. The slit is provided in a cut shape over the entire length of the bottom end surface.
The sandwich slit is formed so as to be tapered at least partially toward the upper closed inner end.
In addition, a vent hole is formed from the top end surface of the lid holder to the slit for insertion.
Furthermore, it is also characterized in that it is made into an integral structure by injection molding of plastic as a material.

The lid holder for a cardboard box according to the present invention has many practical advantages as listed below as compared with existing products.
(A) The shape is extremely simple and compact.
(B) Therefore, the operation of putting on and taking off the cardboard box can be performed easily and quickly.
(C) Since the sandwiching slit is tapered toward the back end, it can be used for various cardboard boxes having different cardboard thicknesses.
(D) Also, the lid flap can be securely fixed in a stable state.
(E) Since the ventilation hole is formed from the top end surface to the slit for insertion, the air in the slit is pressurized and decompressed at the time of attachment / detachment, so that there is no problem that the attachment / detachment becomes difficult. You.
(F) It can be mass-produced at low cost by injection molding or the like using general-purpose plastic as a material.
(G) Since an antibacterial agent can be blended into the material or surface treatment using the antibacterial agent can be easily performed, the material can be used with confidence in the food industry and the like that values hygiene management.
(H) Since it has an integral structure and a simple shape, it can withstand repeated use for a long time.
(I) And, of course, since the obstructing lid flap can be temporarily and easily temporarily fixed in the open state, the efficiency of the operation of taking articles into and out of the cardboard box can be dramatically improved.

Hereinafter, a specific configuration of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view of the lid holder A of this embodiment, FIG. 2 is a perspective view showing a use state thereof, FIG. 3 is a partial longitudinal sectional view taken along line XX of FIG. (A) And (b) is each end view which showed another example of two shapes of the lid holding device A.

As shown in FIG. 2, the lid holding device A shown in FIG. 1 folds a total of four lid flaps 12 obstructing when an article is put in and taken out of the cardboard box B, and is turned outward. The state of being attached to the outer surface of the four side walls 11 of the corrugated cardboard box B is to be temporarily fixed and placed.
As shown in the figure, the lid holder A is temporarily fixed to the four lid flaps 12 at the same time simply by being inserted into two diagonal corners of the four corners on the upper edge side of the cardboard box B. I can do it.

As shown in FIG. 1, the form of the lid holding device A has a shape in which a vertically long thick plate that is long in the horizontal direction is bent into an L shape when viewed from above.
Then, as shown in FIG. 3, a slit 1 for inserting the lid flap 12 in a folded state together with the side wall 11 of the cardboard box B is formed in the bottom end face thereof by cutting the entire length of the bottom end face. Is provided.

The slit width of the sandwich slit 1 is not made uniform from the open lower end to the upper closed inner end, but the upper half portion is tapered toward the inner end.
This facilitates the operation of inserting the lid holder A into the cardboard box B, and even if the thickness of the cardboard as the material of the cardboard box B is slightly different for each type of box, the lid flap This is for giving versatility that the 12 can be securely sandwiched.

As shown in FIGS. 1 and 3, vent holes 2 are formed in two places on the top end face of the lid holding device A.
As can be understood from FIG. 3, the ventilation hole 2 is formed in the process of pinching the folded lid flap 12 together with the side wall 11 with the lid holder A, or the inserted lid holder. In the process of removing A, the gap on the back end side of the slit for insertion 1 becomes close to a closed space, and plays a role of preventing the opening / closing holder A from being hindered from being attached or detached. is there.

That is, in the process of inserting the lid holder A, if the above-mentioned gap becomes close to a closed state, the compressed air prevents the lid holder A from being pushed down.
If the above-mentioned gap is in a state close to hermetic during the removal process of the lid holder A, the gap is decompressed, thereby preventing the lid holder A from being pulled up.

  The lid holder A of this embodiment is made of a rigid general-purpose plastic as a raw material and is made into an integral structure by an injection molding method or the like in order to enhance productivity and durability.

By the way, when the cardboard box B is used for packing fresh foods, processed foods, and the like, it is, of course, necessary to give due consideration to hygiene.
At that point, the sandwich slit 1 provided in the lid holder A may also serve as a hotbed for various germs.

Therefore, a well-known antibacterial agent for plastics may be added to the plastic used as the material of the lid holder A.
Alternatively, the inner wall surface of the slit 1 for insertion and the entire surface of the lid holder A may be coated with a coating agent containing an antibacterial agent.

Next, FIG. 4 shows two lid holders A as another embodiment in which the shape of the slit 1 for insertion is different from the above.
The lid holder A shown in FIG. 4 (a) is tapered at a uniform inclination angle from the lower open end of the slit 1 for insertion to the inner rear end of the slit.
In the lid holder A shown in FIG. 4B, one of the opposing wall surfaces constituting the sandwich slit 1 is formed as a vertical surface, and the other wall surface has an open lower end. It is formed in a curved surface so as to gradually increase toward.

FIG. 2 is a perspective view of the opening holder according to the embodiment of the present invention. It is a perspective view which shows the use condition of a lid holding tool same as the above. FIG. 3 is a partial vertical sectional view taken along line XX of FIG. 2; It is another end view of the lid holding device, showing another two examples of the lid holding device. It is a perspective view of a conventional example, showing an opening maintaining device. It is the perspective view which showed the use condition of an opening maintenance tool same as the above.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS A Opening holding | maintenance tool B Cardboard box 1 Slit for insertion 2 Vent hole 11 Side wall 12 Cover flap 50 Opening maintenance tool 51 Bar material 51a Hook part 52 Holding member 53 Handle 60 Cardboard box 61 Cover flap 62 Side wall

Claims (4)

It is for temporarily fixing the state in which the lid flap is turned outward and becomes attached to the outer surface of the box, which becomes an obstacle when putting goods in and out of the cardboard box,
It has an outer shape that is obtained by bending a vertically long thick plate that is long in the horizontal direction into an L shape when viewed from the top. On its bottom end surface, a lid flap in a folded state is sandwiched together with the side wall of the box. An opening holder for a cardboard box, wherein the slit is provided in a cut shape over the entire length of the bottom end surface.   The lid holder for a cardboard box according to claim 1, wherein the insertion slit is formed so as to be narrowed at least partially toward an upper closed inner end.   2. The open-card holder for a cardboard box according to claim 1, wherein a ventilation hole is formed from the top end surface of the open-cell holder toward the slit for insertion.   2. The lid holder for a cardboard box according to claim 1, wherein the holder is made of an integral structure by injection molding or the like of a plastic material.

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