JP4270608B2 - Swing cartons - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a swinging carton that can easily take out granular contents from a swinging outlet provided in the insertion flap using the insertion flap type sack carton.
[0002]
[Prior art]
The carton is always placed in a pocket, etc., and when necessary, the outlet can be opened to take out an appropriate amount of content, and the outlet can be returned to the original closed state again. Is used.
FIG. 4 is an explanatory view of a conventional insertion flap type swing carton. This is a swinging carton disclosed in Japanese Utility Model Publication No. 59-14333, and is formed from a carton blank 30 as shown in FIG. The insertion flap portion is formed by connecting a lid plate 18 having stoppers 19 on both sides to a movable lid plate 17 having a swing outlet F connected to the rear plate 12. When pulled out, the swing outlet F can be opened as shown in FIG.
[0003]
[Problems to be solved by the invention]
However, the swing carton disclosed in Japanese Utility Model Publication No. 59-14333 does not have a lock function, so it is difficult to completely maintain the swinging state in which the swing outlet F shown in FIG. 4B is fully opened. There is a problem that it is easy to be in an open state.
Further, since the structure of the insertion flap portion is complicated, there is a problem that the open end portion above the barrel portion formed into a prismatic shape cannot be formed using a normal sack box forming and filling machine.
The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a dispensing carton that can reliably retain its shape in the squeezed state and can be easily molded and filled with a normal suck box molding and filling machine. And
[0004]
[Means for Solving the Problems]
The swinging carton according to the present invention, which has been made to solve the above-mentioned problems, has a front plate, a rear plate, and an upper open end portion of a prismatic body portion where left and right side plates face each other in order in the same direction on the upper side of the rear plate. It is closed by an insertion flap provided with a lid plate and a swing outlet connected to each other, and two small flaps connected to the upper side of the side plate, and the insertion flap is pulled out from the body portion, and the lid plate and the insertion flap The portion provided with the swing outlet forms a chevron, and the lock means functions to reach the optimal swinging state where the swing outlet is fully opened, and further pulling is prevented. The locking means is based on the engagement between the notch edge on the distal end side of the insertion flap having notches cut from both side ends and the front plate side end surface of the small flap. Furthermore, the end of the insertion flap from the notch is a curved insertion tip, and the width of the insertion tip is based on the internal dimensions between the side walls of the body portion. also set widely, and is for the structure to Shokiri lack things were set at both ends of the front plate upper side.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the drawer carton according to the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a blank development view of a dispensing carton according to the present invention.
As shown in FIG. 1, a blank 10 of a dispensing carton according to the present invention includes a body portion in which a side plate 1, a top plate 2, a side plate 3, a bottom plate 4, and an adhesive margin piece 5 are connected in this order via folding lines a to d. A lid plate 6 and an insertion flap 7 having a rounded tip are connected in this order to the upper side of the blank rear plate 4 via folding lines f and g, and a bottom plate 6 'and an insertion flap 7' are connected to the lower side of the rear plate 4 in this order. A small flap 8 is connected to the upper side of the side plates 1 and 3 via a folding line e, and a small flap 8 'is connected to the lower side of the side plates 1 and 3.
The left and right sides of the insertion flap 7 are provided with cutouts 9 cut into the inside, and a punching outlet F divided from an arc and a straight line is provided on the lid plate 6 side of the cutout 9. The straight portion is adjacent to the cover plate 6. Further, an insertion tip H is provided at the tip of the notch 9, and the lateral width W1 is set to be slightly wider than the internal dimension W2 between the body side plates. Further, in order to make the left and right ends of the insertion tip H easy to bend, a small notch line J may be provided from the inside of the notch 9 or further deeply provided to place the notch.
Further, at both ends of the boundary between the insertion flap 7 and the cover plate 6, cut lines G that are shifted in phase from the broken line g are provided from the left and right.
Further, small notches K are provided at both ends of the upper side of the front plate 2.
[0006]
FIG. 2 is an explanatory diagram of the function of the dispensing carton according to the present invention.
FIG. 2A is a perspective view showing a sealed state in which the open end portion above the prismatic body portion of the dispensing carton 20 according to the present invention is molded.
The insertion flap 7 connected to the lid plate 6 via a broken line g is inserted into the carton along the front plate 2 as indicated by a dotted line. In this state, at both left and right corners indicated by A / C, both end edges C on the lid plate 6 side of the insertion flap 7 (see FIG. 2B) and the front plate 2 side end surface A of the small flap 8 (FIG. 1). (Refer) The two people are lightly locked so that the lid plate 6 cannot be opened by itself. The same mechanism is provided at the bottom as well, and the bottom plate is not opened by itself.
As described above, the lateral width W1 of the insertion tip H of the insertion flap 7 is set to be slightly wider than the left-right internal dimension W2 between the body side plates, and the left and right protrusions are easily bent by the cut line J. Therefore, the left and right protrusions of the insertion tip H are in contact with the inner surfaces of both side plates in the trunk and are bent. This state is always maintained, and the left and right protruding portions of the insertion tip H move while sliding on the inner surfaces of the side plates 1 and 3. Accordingly, a frictional resistance is generated, which acts as a stopper, and can be stopped at an arbitrary position in the middle of the insertion flap 7 being pulled out or inserted.
In addition, a pick piece T that is used at the time of opening the swing outlet F at the same time as the opening of the swing outlet F is formed on the front side of the center portion of the lid plate 6 to facilitate lifting the lid plate 6 upward and the lid plate 6 is sealed. The stopper plate 6 serves as a stopper for preventing the cover plate 6 from being buried in the body portion.
[0007]
FIG. 2B is a perspective view of an optimal swinging state in which the swinging outlet F that is reached by pressing a finger against the knob T of the swinging carton 20 according to the present invention to lift the cover plate 6 is fully opened.
In the swing-out carton 20 according to the present invention, the lock means functions in this swing-out state, and any further pulling out and dropping out of the insertion flap 7 from the body portion is completely prevented.
This locking means functions at both front corners of the upper part of the trunk and is the point of the present invention.
This locking means is based on the insertion edge H side edge B of the notch 9 of the insertion flap 7 (inside) and the end face A of the small flap 8 on the front plate 2 side (see also FIG. 1). This is due to strong locking (indicated by A / B in the figure).
In this swinging state, the edge D (see also FIG. 1) on the outlet F side of the notch 9 of the insertion flap 7 and the edge E (see also FIG. 1) of the small flap 8 are lightly engaged (see FIG. 1). In this case, the return of the insertion flap 7 into the body portion is prevented by the frictional resistance of the left and right protruding portions of the insertion tip H and the inner surfaces of the side plates 1 and 3. However, this prevention force is weak, and if the cover plate 6 is pushed down by hand, the insertion flap 7 can be easily pushed back into the trunk.
As described above, the swinging carton 20 according to the present invention is positioned reliably by the locking means functioning in the sealed state shown in FIG. 2A and the swinging state shown in FIG. The carton swinging state and sealing state can be maintained, and the two states can be reciprocated repeatedly.
[0008]
FIG. 3 is a supplementary explanatory diagram when assembling the swing carton according to the present invention.
The small notches K formed at both ends of the upper side of the front plate 2 are rounded at the tip when the first open end is assembled, and the insertion tip H having a lateral width W1 is arranged between the narrower body side plates. It is provided in order to facilitate the work of inserting into the body having the internal dimension W2. That is, as shown in FIG. 3 (a), the insertion tip portion H having a roundness is inserted to a position where it is fitted into both the small cutouts K, and then a slight force is applied to push down the cover plate 6 to insert the insertion tip portion H. The left and right protruding portions are bent rearward, and the entire insertion flap 7 can be inserted into the trunk portion as shown in FIG. At the moment when the insertion tip H passes through the small cutout K, both the insertion tip H and the upper end of the front plate 2 are slightly curved forward.
As described above, the small cut K serves as a guide that facilitates insertion of the insertion flap 7 into the body.
[0009]
A wide range of paperboard can be used for the blank base material of the dispensing carton 20 of the present invention, but a card system and a special board system having rigidity and strong folding strength can be suitably used.
In addition, when the opening and closing of the outlet is repeated over a long period of time, and the number of times of opening and closing increases, polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, polycarbonate, polystyrene, etc. The film may be laminated to paperboard. In addition, this laminate can improve moisture resistance.
Furthermore, instead of paperboard, a plastic sheet may be used for the blank substrate. For example, a polypropylene sheet made of an opaque material mixed with a filler such as talc or an amorphous polyethylene terephthalate sheet can be used as it is as a blank substrate.
Further, depending on the contents, a transparent plastic sheet may be used to form a skeleton type that shows the contents.
It should be noted that the ejection carton 20 according to the present invention does not have a sealing property, and in order to prevent dust from being mixed, it is preferable that the entire ejection carton 20 is overlapped with a moisture-proof plastic film after molding and filling.
[0010]
Any known printing method such as offset, gravure and silk screen may be used for printing on the blank substrate. Further, post-processing such as embossing, foil stamping and OP varnish coating may be performed. Since these printing and post-processing are processing in the form of a paperboard or plastic sheet, a beautiful, powerful and sharp finish is obtained.
[0011]
【The invention's effect】
According to the dispensing carton 20 according to the present invention, the locking means by engaging the edge B on the insertion distal end H side and the end surface A of the small flap in the notch 9 of the insertion flap 7 curved in the body part, and The left and right protrusions of the insertion tip H and the inner surfaces of the side plates 1 and 3 against the light engagement between the edge D on the outlet F side and the edge E of the small flap 8 in the notch 9 of the insertion flap 7 The frictional resistance is added, so that an optimal opening state can be maintained, and the insertion flap 7 can be prevented from coming off from the body.
Even in the sealed state, the end edge C of the insertion flap 7 on the cover plate 6 side and the end face A on the front plate 2 side of the small flap 8 are lightly locked so that the cover plate 6 does not open alone.
Therefore, the dispensing carton 20 according to the present invention can be easily and stably repeated between the storage position and the opening position.
In addition, the outer shape of the carton blank is almost the same as a simple general insertion flap type sack carton, so it can be molded and filled using a normal insertion flap type sack carton molding and filling machine as it is. This eliminates the need for a new molding and filling machine and is economical.
[Brief description of the drawings]
FIG. 1 is a blank development view of an ejection carton according to the present invention. FIG. 2 is an explanatory diagram of functions of the ejection carton according to the present invention. FIG. 3 is a supplemental explanatory diagram when assembling the ejection carton according to the present invention. Explanatory drawing of mold swing carton [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side plate 2 Front plate 3 Side plate 4 Back plate 5 Glue margin piece 6 Cover plate 7 Insertion flap 8 Small flap 9 Notch 10 Draw-out carton blank 20 according to the present invention Draw-out carton 30 Conventional swing cartons a to g Folding line A Front end side B of the small flap End edge C on the insertion tip H side in the notch 9 of the insertion flap 7 Both end edges D on the lid plate 6 side of the insertion flap 7 On the outlet F side in the notch 9 of the insertion flap 7 Edge E Edge of small flap F Outlet H Insertion tip K Small notch T Knob

Claims (1)

A front plate, a rear plate, an insertion flap provided with a lid plate and a swing plate, in which the upper open end of the prismatic body that the left and right side plates oppose each other is sequentially connected to the upper side of the rear plate, and the side plate Formed by two small flaps connected to the upper side, the insertion flap is drawn out from the body portion, the portion provided with the swing plate and the outlet of the insertion flap forms a chevron, and A swinging carton in which the swinging outlet is fully opened, the locking means functions, and further withdrawal is prevented,
The locking means is due to the engagement between the notch edge on the tip side of the insertion flap having notches cut from both side ends and the front plate side end surface of the small flap,
The front end portion of the insertion flap with respect to the notch is an insertion front end portion having a curved edge, and the lateral width of the insertion front end portion is set wider than the internal dimension between both side walls of the body portion, and A swinging carton comprising small notches at both ends of the upper side of the front plate .

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