JP2016055920A - Sealing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing tool in which a lower presser is mainly configured not to rotate even if an upper presser is rotated, and further two subjects are added, i.e., one is to make it respond to a difference in the thickness of an outer lid even if there is some difference therein, and another is to make it to meet freight handling.SOLUTION: An upper presser and a lower presser are configured to rotate relatively. In the operation of attaching and detaching it to an outer lid, function or configuration serving as a stopper is provided so that the lower presser may not rotate even if it the upper presser is rotated. For means to respond to a difference in the thickness of the outer lid even if there is some difference, it is provided with a spring function capable of adjusting a length width of a strut in a portion interposing between the lower presser and the upper presser. For means to meet freight handling, it is aimed to make the size of the upper presser be smaller as much as possible, and it is configured to take a method in which a function to press down so that a pair of outer lids may not drop inside of a box depends on receiving and supporting of a pair of inner lids.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sealing device for a packaging box such as a cardboard box having a pair of inner lids and a pair of outer lids.
The present invention relates to a sealing tool in which a lower presser and an upper presser are connected via a support.

  The packaging box will be described below with the cardboard box in mind.

As shown in FIG. 2, a conventional sealing tool, for example, the one in Patent Document 1, has a circular lower presser. The lower presser is a member that passes and holds the inside of the pair of outer lids, and may be any member that extends in the longitudinal direction in the pass and hold direction. In other words, any shape that extends in the horizontal direction is sufficient, but if it is circular, it extends in the direction of 360 degrees.
As shown in FIG. 2, the conventional sealing tool has a circular shape with the lower presser aware of waste.

The reason for this is that even if the upper presser and the lower presser are connected in a relatively rotating form, when the upper presser is rotated, the lower presser will also rotate or slide in conjunction with the upper presser. It is not escaped. That is, when the upper presser is rotated, it is circular so that no trouble occurs even if the lower presser rotates in conjunction with the upper presser.
As a matter of course, there is an unnecessary part, that is, a useless part, and the cost is unnecessarily increased when the product is manufactured.

  In the case of Patent Document 1 (hereinafter, also referred to as a conventional sealing tool), as a form for eliminating a useless portion, FIGS. 16 and 17 show a semi-circular bottom presser and simultaneously rotate the top presser. It shows a connection method in which the upper presser and the lower presser are fixed to each other so that the lower presser also rotates.

  That is, according to the prior art, as shown in FIGS. 16 and 17, when the lower presser is not circular but semi-circular or rectangular, the longitudinal direction of the lower presser is set in the sealing operation. The upper presser and the lower presser are fixed so that the upper presser and the lower presser are opposed to each other so that the lower presser is rotated with the rotation of the upper presser in order to cross in the direction crossing the joint line of the outer lid of the outer cover.

When the above connecting method is adopted, as a matter of course, the lower presser is rotated together with the upper presser. Since the lower presser is a member that presses the pair of outer lids from the inside, the lower presser firmly presses against the outer lid, and a correspondingly strong force is required for the operation, that is, the operation is difficult. In addition, it becomes difficult to operate the sealing tool itself.
A further problem is that sometimes the edge of the lower presser sticks to the edge of the inner lid and cannot be opened.
That is, if the above connection method is adopted, the sealing tool will be poor in operability.

JP-A-11-59663

  In view of the above-described problems of increasing costs for commercialization or problems of poor operability, it is an object to prevent the lower presser from rotating even when the upper presser is rotated.

  In addition to the above main problem, the following two problems will be solved.

One is “to be able to handle even if there is a slight difference in the thickness of the outer lid”.
Conventional sealing devices are connected in a state where the distance between the lower presser and the upper presser is fixed, and can be used for a cardboard box having an outer lid of a certain thickness, but cannot be used if the thickness of the outer lid is different. Or not suitable for use.

The other is to “make it suitable for cargo handling”.
The conventional sealing tool has a problem that the upper presser is large and its presence itself becomes an obstacle, and it is easy to get stuck or caught when stacking other boxes, and the stacked boxes are not stable due to grazing.

The solution to the main problem is that the upper presser and the lower presser are connected in a relatively rotating form. However, in the operation of attaching / detaching to / from the outer lid, even if the upper presser is rotated, the lower presser is not rotated or is not rotated.
The means has a function or form as a stopper for the lower presser so that the lower presser does not rotate in conjunction with the rotation of the upper presser.
As an example of the stopper, the lower presser is provided with a protrusion that is inserted between the joints of the pair of outer lids.

"Means to make it possible to handle even if there is a slight difference in the thickness of the outer lid" has a spring function that adjusts the length of the struts between the lower presser and the upper presser It was.
That is, even if there is a slight difference in the thickness of the outer lid, the spring function is adjusted.

  As "means for making it suitable for cargo handling", we focused on making the size of the upper presser as small as possible. Among the functions of conventional sealing tools, the pair of outer lids The function to hold down the inside of the box) depends on the presence of the pair of inner lids, that is, the method depends on the support of the pair of inner lids.

  Regardless of the connection method that fixes the upper presser and the lower presser to the opposite shape, the lower presser is made "to be able to rotate only the upper presser". It has become possible to reduce the bulk of the material and to eliminate waste of materials.

  When the lower presser is formed into a circle extending 360 degrees, a large waste is caused by slightly increasing the length width (the length for passing and holding the inside of the pair of outer lids, that is, the diameter of the circle). However, by providing a stopper, the lower presser can take an arbitrary shape, and a sufficient length and width for the lower presser to work effectively can be set.

  By making it possible to rotate only the upper presser relative to the lower presser, the attachment / detachment operation can be performed smoothly.

  The lower presser does not rotate or does not rotate, and the situation that the lower presser sticks to the edge of the inner lid and cannot be opened does not occur.

The size of the cardboard boxes around you varies, and the thickness of the outer lid varies. It is difficult to prepare a sealing tool suitable for each thickness.
By providing a spring function, it became "a thing that can be used even if there is a slight difference in the thickness of the outer lid", and a sealing tool suitable for practical use could be obtained.

  Even with an outer lid that should have a certain thickness, the sealing tool cannot always be smoothly clamped due to paper quality, paper distortion or moisture. It may be tight or loose. By having a spring function, it became possible to cope with subtle problems.

  By adopting a method that relies on the support of the pair of inner lids to hold the pair of outer lids so that they do not fall downward, the upper presser can be made smaller, suitable for handling cargo, It became a thing that the trouble of handling became minor.

It is a sealing tool of the present invention. It is a sealing tool of FIG. It is a sealing tool of FIG. It is the figure which showed the operation process about the sealing tool of FIG. It is the lower pressing member used for FIG. It is the spring member used for FIG. It is a figure explaining a spring function.

In explaining the embodiment, the meanings of top, bottom, vertical, horizontal, left, right, beyond, front, inside, outside, back, and front are properly used while viewing the figure.
A cardboard box has a width surface and a length surface. Expressed mainly from the direction of looking at the width.
In this book, a pair of outer lids are expressed in the form of left and right sides, that is, left and right. In addition, the joint of the pair of outer lids is expressed in the form of a vertical stripe.

In the sealed state, the side viewed from the direction of viewing the width surface (C1) of the cardboard box is referred to as the length side, and the width extending from side to side viewed from the same direction is referred to as the length width. The side surface on the length side is called the length side surface.
The side of the sealing tool in the sealed state viewed from the direction of viewing the length surface (C2) of the cardboard box is referred to as the width side. The side surface on the width side is referred to as the width side surface.
In the expression of looking at a sealing tool that is not in a sealed state, it is also referred to as a length side, a length width, a length side surface, a width side, and a width side surface in the same manner as a sealing tool in a sealed state.

  Hereinafter, it demonstrates through a figure.

The basic form of this sealing tool will be described with reference to FIGS.
This sealing tool is formed by connecting a lower presser and an upper presser via a support.
This sealing tool was formed by connecting the upper presser and the lower presser in a relatively rotating manner.
As shown in Fig. 1 (3) and Fig. 2 (2), this sealer is viewed from the side, and the clamping mouth consisting of the upper presser and the lower presser is on the left or right side of the column. It is in a form suitable for.

In FIG. 1 (1), the upper presser is facing sideways (rightward) and forms a pinch opening facing sideways.
In FIG. 2 (1), the upper presser is oriented in the vertical direction (downward), and forms a pinch opening oriented in the vertical direction.
In this manner, the direction in which the upper presser is directed can be changed with respect to the lower presser. That is, the direction in which the pinch opening is directed can be changed.

The conventional sealing tool, for example, the one shown in FIG. 2 of Patent Document 1, changes the direction in which the upper press faces, so that when the upper press is rotated, the lower presser is also rotated or moved in conjunction with the upper presser. It is said.
What has been sought in the present invention is that the lower presser is placed on the body as it is attached to the outer lid from beginning to end, and the upper presser is rotated so that the lid can be opened and closed.
Therefore, the lower presser has a stopper for preventing the rotation so that the lower presser does not rotate even if the upper presser is rotated.
The stopper should be sandwiched along the gap between the pair of outer lids. Even when the upper presser is rotated during sealing or unsealing, the stopper hits the joint between the pair of outer lids. It is said that the lower presser does not rotate and only the upper presser is rotated.
The method of setting the stopper at the joint of the pair of outer lids does not fix the stopper to the outer lid. Therefore, when opening, the upper presser can be opened right or left without any trouble.
Incidentally, when taking the method of fixing the stopper to either the left or right outer lid, it is required to return the upper presser to the outer lid side to which the stopper is fixed when opening.

Referring to FIG.
FIG. 1 shows a sealing tool of the present invention to which a stopper (D31) is added.
FIG. 1 shows a sealing tool in which a lower presser and an upper presser are connected by a spring member (see FIG. 6).
FIG. 1A is a perspective view. FIG. 1 (2) is a side view of the width side surface (viewed from the direction A). FIG. 1 (3) is a side view of the length side surface (viewed from the direction B).

This sealing tool has a longer length on the length side (length seen from the B direction) than a width on the width side (lateral width seen from the A direction) when viewed on the basis of the form of the lower presser. It has a shape.
Incidentally, the middle part of the rectangular lower presser is made circular so that the back side of the lower presser has a diameter commensurate with the length of the lower side of the rotating spring member (see FIG. 3).

FIG. 2 will be described.
FIG. 2 is a diagram illustrating a state where the upper presser is rotated from the state of FIG. 1 to the state of FIG. 2.
FIG. 2 (1) is a perspective view. FIG. 2 (2) is a side view of the width side surface (viewed from the direction A). FIG. 2 (3) is a side view of the length side surface (viewed from the B direction).

  Incidentally, FIG. 1 is a view showing a posture to be attached to one outer lid in an initial operation for sealing. FIG. 2 is a view showing the posture in the sealed state.

FIG. 3 will be described.
3 is a perspective view of the back side of the sealing device shown in FIG.
It is the figure shown about the state of the lower side (D43) of a spring member.
The sealing device shown in FIG. 1 is formed by connecting the upper presser to the lower presser so that the upper presser rotates around the support (vertical side). The tip of the lower side of the spring member connecting the lower presser and the upper presser is only in contact with the lower presser and is not fixed to the lower presser.

FIG. 4 will be described.
4 (1) and 4 (3) show the process of sealing the cardboard box with the sealing tool shown in FIG.
4 (2) is a partial view of the state of FIG. 4 (1), and FIG. 4 (4) is a partial view of the state of FIG.
FIG. 4 (1) is a diagram showing a state where it is attached to one (right) outer lid. In this state, only the lower presser is presented to the other party (left side).
Fold the other (left) outer lid over the inserted lower presser foot, fold the pair of outer lids into a flat state, rotate the upper presser, and connect the pair of outer lids And put it in a sealed state.
When the upper presser is rotated, the lower side of the spring member slides on the back side (lower side) of the lower presser.
FIG. 4 (3) is a diagram showing a sealed state, that is, a diagram showing a state in which the upper presser is rotated and the upper presser is stretched over a pair of outer lids.
By the way, in this document, the expression “only the upper presser rotates with respect to the lower presser” means “the lower presser does not rotate or does not rotate”, and the upper presser and the spring member are fixed. If it is connected to the state, it means that the spring member also rotates together with the upper presser.
Incidentally, the upper presser and the spring member of the sealing tool shown in this document are connected in a fixed state.
FIG. 4 (5) will be described later.

FIG. 5 will be described.
FIG. 5 is a diagram for explaining the lower presser (lower presser member) used in FIG. 1.
FIG. 5A is a perspective view. FIG. 5 (2) is a side view of the width side surface (viewed from the direction A). FIG. 5 (3) is a side view of the length side surface (viewed from the B direction).
As can be seen from FIGS. 5 (1), (2) and (3), a protrusion (namely, a stopper (D31)) sandwiched along the gap between the joints of the pair of outer lids was provided inside the lower presser.

  Incidentally, it is desirable that the height of the protrusion as the stopper is set not to be too high or too low considering the relationship with the thickness of the target outer lid. It is desirable that the protrusion is as thin as possible and hard enough not to bend. Further, it is important that the height of the upper presser does not hinder the rotation of the upper presser in a state where it is sandwiched between the pair of outer lids.

  The function required for the stopper is that the length direction of the lower presser that holds the inside of the pair of outer lids across (crosswise direction) crosses the joint (vertical line) of the pair of outer lids. It is to prevent the state from moving while being directed. Since this is related to life as a sealing tool, it is important to configure it so that it does not become a half-finished product that would slide.

FIG. 6 will be described.
FIG. 6 shows the spring member used in FIG.
FIG. 6A is a perspective view. FIG. 6 (2) is a side view. FIG. 6 (3) is a plan view. FIG. 6 (4) is a front view.
The spring member is formed by bending one wire. In the embodiment, a metal wire of # 12 (2.6 to 2.5 mm diameter) is used, and as viewed from the side, as shown in FIG. 6 (2), the upper side (D41), the vertical side (D42), the lower side (D43) It was supposed to consist of three sides.
The upper side is a portion connected to the upper presser. The vertical side is a portion that also serves as a support. The lower side is a portion that supports the lower presser and at the same time forms a spring.

The spring member shown in FIG. 6 has a shape that twists right and left on the lower side (D43). This bend is to make the spring easy to generate, to make the spring easy to work, or to make the spring soft.
The tip of the lower side (D43) (the part in contact with the lower presser) is formed in such a way that the spring member keeps the balance and at the same time slides the back side of the lower presser.

FIG. 7 is a perspective view of FIG. 1 (3), that is, a view showing a state in which the upper presser and the lower presser are connected with a spring member that also serves as a support.
The portion that protrudes below the lower presser (D3) is a portion that acts as a spring.
When sandwiched by the outer lid, the distance (W1) between the upper presser (D1) and the lower presser (D3) is widened, that is, the height width (W1) of the portion interposed between the lower presser and the upper presser The spring works in such a way that the length width (W2) of the portion protruding below the lower presser is shortened accordingly.

As described with reference to FIG. 4, this sealing tool is first attached to one outer lid, and after the pair of outer lids are folded together, the upper presser is rotated to obtain a sealed state.
That is, it is accompanied by a rotation operation in attaching / detaching. When the upper presser is rotated, the direction in which the spring works is required to change with the upper presser.
When attached to one outer lid, the spring function is required to act on one outer lid, and when in the sealed state, the spring function is required to work on both the pair of outer lids.

The spring member, when viewed from the side, has a pinch that faces the left or right side of the vertical side that also serves as a support.
When this shape is attached to one outer lid, the spring acts intensively on one outer lid, and when the pair of outer lids are sealed, both of the pair of outer lids are used. The spring works. That is, the lower presser and the upper presser are connected to each other by a spring member having a pinch with a direction as a shape suitable for the characteristics of the sealing tool that involves an operation of rotating the upper presser.

In this document, as shown in Fig. 1 (2) (3) and Fig. 2 (2) (3), the lower presser and the upper presser are expressed in a certain interval as the state when not in use. However, the vertical side of the spring member is attached in such a way as to pass the lower presser up and down, and the lower side of the spring member is not fixed to the lower presser. The interval of is not necessarily maintained at a constant interval, and the lower presser has play (allowance for movement).
As a result, it is easy to pinch when sealing and can be used conveniently. That is, it is convenient in the operation of FIG.

  Hereinafter, a supplementary explanation of the spring function or the spring member will be given.

  Needless to say, the spring function referred to in the present invention is a function of adjusting spontaneously or automatically with a stress or a repulsive force generated by the action of the pin opening being pushed and spread.

In this document, as an example, a spring member having approximately three sides of an upper side, a vertical side, and a lower side as viewed from the side as shown in FIG.
The spring member shown in FIG. 6 has a shape that makes a left and right detour with respect to the lower side as a form for improving the function of the spring, but a spring that is arbitrarily set such as a spiral form. It may be.
Further, if the diameter of the lower presser is to be increased, it may extend diagonally straight without making a detoured shape or a spiral shape on the lower side.
Incidentally, the spring member shown in FIG. 6 is an example corresponding to the shape of the sealing tool shown in FIG.

It is desirable that the spring member has a shape in which the vertical side and the lower side do not protrude excessively downward when assembled in the sealing tool.
As shown in FIG. 6, it is preferable to make the lower side spring function flat. Since the portion protruding below the presser foot may damage what is contained in the cardboard box, it is good to take measures such as covering the protrusion.

The spring member has enough spring strength to connect in a stable state so that the pair of outer lids do not float up, or the softness of the springs when attaching / detaching, or how much thickness (outer lid thickness) is different It is important to consider whether to deal with the above.

  The upper presser seen in the sealing tool shown in FIG. 1 is formed by assembling a plate-like member as the upper presser on the upper side of the spring member, but is the upper side of the spring member bent flatly, that is, is the surface formed? For example, the upper side of the spring member also serves as the upper presser may be formed by bending it into a shape that bends to the left or right as in the lower side shown in FIG.

Regarding the spring member, points to be particularly considered will be described.
Although the pinch opening is slightly pushed out, it is important that the spring works without losing the overall posture.
It is desirable that the spring be able to cope with the “bending” of the lower side.
As a form for that purpose, as shown in Fig. 6 (1) and (3), measures such as forming a detour to the lower side as a form to make the lower side "easy to be moderate" or "easy to work as a spring". Good to take.

  The spring member is operated to rotate the upper presser so that the vertical side does not bend in the clamped state, or the bent portion divided into the lower side and the upper side does not return. It is necessary to consider the material used or the material so that the vertical side will not be twisted.

In the examples, a metal wire of # 12 (2.6 to 2.5 mm diameter) was used as a material for the spring member. If the difference in the thickness of the outer lid was about 1 to 3 mm, it could be handled.
The material, material, thickness, etc. used for the spring member may be arbitrarily determined.

  The following describes the method taken to suit the handling of the cargo.

As can be seen from the shape of FIG. 4 (4), the sealing tool shown in this document is pushed down from above under the assumption that there is no inner lid, that is, no support for the inner lid. When receiving the action (P), as shown in FIG. 4 (5), the pair of outer lids and sealing tools are configured to fall down (inside the box) while being pressed.
That is, as shown in FIG. 4 (4), the lower presser (D3) has a length sufficient to hold the pair of outer lids so as not to lift upward (outside) (hereinafter also referred to as a long length). However, the upper presser (D1) has a length that is insufficient to hold the pair of outer lids so as not to fall down (inside the box) (hereinafter also referred to as a short length). It is said.
In other words, it forms a “shallow crevice” formed by a long presser foot having a long length and an upper presser having a short length.
The sealing tool shown in this document is based on the method that the function of pressing the pair of outer lids so as not to fall downward depends on the support of the pair of inner lids.

  By adopting this method, the length of the upper presser can be made “short length width”, that is, the upper presser can be reduced, and another box is stacked on the sealed cardboard box. In some cases, the protrusion of the upper presser itself is caught or stuck, or the stacked boxes are not stable, so that troubles in handling the load can be reduced.

By setting the lower presser to “long length width”, the sealing tool can be sealed without being entangled with the inner lid, and the position near the center of the opening of the cardboard box, that is, the distance between the pair of inner lids facing each other It was designed to be sealed by mounting inside.
The outer lid of the cardboard box has a property of being gently bent (bent). There is also deflection over time. There is also deflection caused by the load of other boxes that are stacked.
In the present invention, the upper presser is made small and thin, and the presence of the upper presser is buried in the deflection, so that the center of the opening having the largest deflection is prevented so as not to interfere with the handling of the load. It can also be attached to the position.

By using the method of sealing with a shallow depth of mouth, compared to the conventional method of locking locally with a deep depth of mouth, the outer lid of the cardboard box is also a sealing tool. It was something that would n’t be overwhelming.
For example, when boxes that cannot be tolerated are stacked, the sealing tool can escape (disengage) from the outer lid, as shown in FIG. 4 (5). The outer lid is also designed to escape (disengage) from the seal without damaging (or breaking).
Since the sealing tool depends on the support of the pair of inner lids for the function of pressing the pair of outer lids so that they do not fall downward, the pair of outer lids actually have the pair of outer lids shown in FIG. However, the relationship between the sealing tool and the outer lid has a play (motion allowance) as shown in FIG. 4 (5). In other words, it also explains that neither the cardboard box nor the sealing device is unreasonable.

  The following are general supplementary items.

The stopper shown in FIG. 5 is an example corresponding to the shape of the lower presser shown in FIG. 1, and the stopper according to the present invention is not limited in its form. If the state of the sealing tool, especially the shape of the lower presser, is changed, the way the stopper is changed will be changed.
The stopper is not limited to the shape shown in this document. For example, if the sealing tool as shown in this document is connected in a vertical direction, it will have two columns, and the column itself will be a stopper. . Or it is good also as a stopper to comprise the shape inserted in the hole in the cross section of the edge of an outer cover.

  The spring member does not need to stick to the shape composed of the upper side, the vertical side, and the lower side when viewed from the side. For example, a leaf spring may be used. That is, the form of the spring member may be arbitrarily determined.

Although the present invention has been described with the cardboard box as the main object and with the cardboard box in mind, the present invention can be applied to or used in boxes other than the cardboard box.
In this book, these boxes are collectively called packaging boxes.

  This sealing tool is not limited in terms of material and material throughout. As long as necessary functions are not impaired, the shape, contour, design, size, form and the like may be arbitrarily determined.

  The entire contents of the present invention are described through the entire drawings, and the technical contents described in the claims are not limited by the technical contents described in the individual drawings.

The sealing device of the present invention has a practicality that is synergistic with the combination of having a stopper, having a spring function, and having a form suitable for handling.
Each of the invention “having a stopper”, the invention “having a spring function”, and the invention “suitable for handling” can also be applied to conventional sealing devices.

  By providing a stopper to prevent the lower presser from rotating in conjunction with the rotation of the upper presser, the operability is improved and it is easy to use. In addition, it can be used conveniently even if there is a slight difference in the thickness of the outer lid, or it can be used for cargo handling. It can be conveniently used for repeated opening and closing of the lid, and can be widely used from home use to business use such as storage, management, and transfer of goods.

Packaging box C1 Width C2 Length C3 Inner lid C4 Outer lid Sealing tool D1 Upper presser D2 Post D3 Lower presser D31 Stopper D4 Spring member Spring member D41 Upper side D42 Vertical side D43 Lower side

The present invention relates to a sealing device for a packaging box such as a cardboard box having a pair of inner lids and a pair of outer lids.
The present invention relates to a sealing tool in which a lower presser and an upper presser are connected via a support.

  The packaging box will be described below with the cardboard box in mind.

As shown in FIG. 2, a conventional sealing tool, for example, the one in Patent Document 1, has a circular lower presser. The lower presser is a member that passes and holds the inside of the pair of outer lids, and may be any member that extends in the longitudinal direction in the pass and hold direction. In other words, any shape that extends in the horizontal direction is sufficient, but if it is circular, it extends in the direction of 360 degrees.
As shown in FIG. 2, the conventional sealing tool has a circular shape with the lower presser aware of waste.

The reason for this is that even if the upper presser and the lower presser are connected in a relatively rotating form, when the upper presser is rotated, the lower presser will also rotate or slide in conjunction with the upper presser. It is not escaped. That is, when the upper presser is rotated, it is circular so that no trouble occurs even if the lower presser rotates in conjunction with the upper presser.
As a matter of course, there is an unnecessary part, that is, a useless part, and the cost is unnecessarily increased when the product is manufactured.

  In the case of Patent Document 1 (hereinafter, also referred to as a conventional sealing tool), as a form for eliminating a useless portion, FIGS. 16 and 17 show a semi-circular bottom presser and simultaneously rotate the top presser. It shows a connection method in which the upper presser and the lower presser are fixed to each other so that the lower presser also rotates.

  That is, according to the prior art, as shown in FIGS. 16 and 17, when the lower presser is not circular but semi-circular or rectangular, the longitudinal direction of the lower presser is set in the sealing operation. The upper presser and the lower presser are fixed so that the upper presser and the lower presser are opposed to each other so that the lower presser is rotated with the rotation of the upper presser in order to cross in the direction crossing the joint line of the outer lid of the outer cover.

When the above connecting method is adopted, as a matter of course, the lower presser is rotated together with the upper presser. Since the lower presser is a member that presses the pair of outer lids from the inside, the lower presser firmly presses against the outer lid, and a correspondingly strong force is required for the operation, that is, the operation is difficult. In addition, it becomes difficult to operate the sealing tool itself.
A further problem is that sometimes the edge of the lower presser sticks to the edge of the inner lid and cannot be opened.
That is, if the above connection method is adopted, the sealing tool will be poor in operability.

JP-A-11-59663

  In view of the above-described problems of increasing costs for commercialization or problems of poor operability, it is an object to prevent the lower presser from rotating even when the upper presser is rotated.

  In addition to the above main problem, the following two problems will be solved.

One is “to be able to handle even if there is a slight difference in the thickness of the outer lid”.
Conventional sealing devices are connected in a state where the distance between the lower presser and the upper presser is fixed, and can be used for a cardboard box having an outer lid of a certain thickness, but cannot be used if the thickness of the outer lid is different. Or not suitable for use.

The other is to “make it suitable for cargo handling”.
The conventional sealing tool has a problem that the upper presser is large and its presence itself becomes an obstacle, and it is easy to get stuck or caught when stacking other boxes, and the stacked boxes are not stable due to grazing.

The solution to the main problem is that the upper presser and the lower presser are connected in a relatively rotating form. However, in the operation of attaching / detaching to / from the outer lid, even if the upper presser is rotated, the lower presser is not rotated or is not rotated.
The means has a function or form as a stopper for the lower presser so that the lower presser does not rotate in conjunction with the rotation of the upper presser.
As an example of the stopper, the lower presser is provided with a protrusion that is inserted between the joints of the pair of outer lids.

"Means to make it possible to handle even if there is a slight difference in the thickness of the outer lid" has a spring function that adjusts the length of the struts between the lower presser and the upper presser It was.
That is, even if there is a slight difference in the thickness of the outer lid, the spring function is adjusted.

  As "means for making it suitable for cargo handling", we focused on making the size of the upper presser as small as possible. Among the functions of conventional sealing tools, the pair of outer lids The function to hold down the inside of the box) depends on the presence of the pair of inner lids, that is, the method depends on the support of the pair of inner lids.

  Regardless of the connection method that fixes the upper presser and the lower presser to the opposite shape, the lower presser is made "to be able to rotate only the upper presser". It has become possible to reduce the bulk of the material and to eliminate waste of materials.

  When the lower presser is formed into a circle extending 360 degrees, a large waste is caused by slightly increasing the length width (the length for passing and holding the inside of the pair of outer lids, that is, the diameter of the circle). However, by providing a stopper, the lower presser can take an arbitrary shape, and a sufficient length and width for the lower presser to work effectively can be set.

  By making it possible to rotate only the upper presser relative to the lower presser, the attachment / detachment operation can be performed smoothly.

  The lower presser does not rotate or does not rotate, and the situation that the lower presser sticks to the edge of the inner lid and cannot be opened does not occur.

Cardboard boxes vary in size, and the thickness of the outer lid varies. It is difficult to prepare a sealing tool suitable for each thickness.
By providing a spring function, it became "a thing that can be used even if there is a slight difference in the thickness of the outer lid", and a sealing tool suitable for practical use could be obtained.

  Even with an outer lid that should have a certain thickness, the sealing tool cannot always be smoothly clamped due to paper quality, paper distortion or moisture. It may be tight or loose. By having a spring function, it became possible to cope with subtle problems.

  By adopting a method that relies on the support of the pair of inner lids to hold the pair of outer lids so that they do not fall downward, the upper presser can be made smaller, suitable for handling cargo, It became a thing that the trouble of handling became minor.

It is a sealing tool of the present invention. It is a sealing tool of FIG. It is a sealing tool of FIG. It is the figure which showed the operation process about the sealing tool of FIG. It is the lower pressing member used for FIG. It is the spring member used for FIG. It is a figure explaining a spring function.

In explaining the embodiment, the meanings of top, bottom, vertical, horizontal, left, right, beyond, front, inside, outside, back, and front are properly used while viewing the figure.
A cardboard box has a width surface and a length surface. Expressed mainly from the direction of looking at the width.
In this book, a pair of outer lids are expressed in the form of left and right sides, that is, left and right. In addition, the joint of the pair of outer lids is expressed in the form of a vertical stripe.

In the sealed state, the side viewed from the direction of viewing the width surface (C1) of the cardboard box is referred to as the length side, and the width extending from side to side viewed from the same direction is referred to as the length width. The side surface on the length side is called the length side surface.
The side of the sealing tool in the sealed state viewed from the direction of viewing the length surface (C2) of the cardboard box is referred to as the width side. The side surface on the width side is referred to as the width side surface.
In the expression of looking at a sealing tool that is not in a sealed state, it is also referred to as a length side, a length width, a length side surface, a width side, and a width side surface in the same manner as a sealing tool in a sealed state.

  Hereinafter, it demonstrates through a figure.

The basic form of this sealing tool will be described with reference to FIGS.
This sealing tool is formed by connecting a lower presser and an upper presser via a support.
This sealing tool was formed by connecting the upper presser and the lower presser in a relatively rotating manner.
As shown in Fig. 1 (3) and Fig. 2 (2), this sealer is viewed from the side, and the clamping mouth consisting of the upper presser and the lower presser is on the left or right side of the column. It is in a form suitable for.

In FIG. 1 (1), the upper presser is facing sideways (rightward) and forms a pinch opening facing sideways.
In FIG. 2 (1), the upper presser is oriented in the vertical direction (downward), and forms a pinch opening oriented in the vertical direction.
In this manner, the direction in which the upper presser is directed can be changed with respect to the lower presser. That is, the direction in which the pinch opening is directed can be changed.

The conventional sealing tool, for example, the one shown in FIG. 2 of Patent Document 1, changes the direction in which the upper press faces, so that when the upper press is rotated, the lower presser is also rotated or moved in conjunction with the upper presser. It is said.
What has been sought in the present invention is that the lower presser is placed on the body as it is attached to the outer lid from beginning to end, and the upper presser is rotated so that the lid can be opened and closed.
Therefore, the lower presser has a stopper for preventing the rotation so that the lower presser does not rotate even if the upper presser is rotated.
The stopper should be sandwiched along the gap between the pair of outer lids. Even when the upper presser is rotated during sealing or unsealing, the stopper hits the joint between the pair of outer lids. It is said that the lower presser does not rotate and only the upper presser is rotated.
The method of setting the stopper at the joint of the pair of outer lids does not fix the stopper to the outer lid. Therefore, when opening, the upper presser can be opened right or left without any trouble.
Incidentally, when taking the method of fixing the stopper to either the left or right outer lid, it is required to return the upper presser to the outer lid side to which the stopper is fixed when opening.

Referring to FIG.
FIG. 1 shows a sealing tool of the present invention to which a stopper (D31) is added.
FIG. 1 shows a sealing tool in which a lower presser and an upper presser are connected by a spring member (see FIG. 6).
FIG. 1A is a perspective view. FIG. 1 (2) is a side view of the width side surface (viewed from the direction A). FIG. 1 (3) is a side view of the length side surface (viewed from the direction B).

This sealing tool has a longer length on the length side (length seen from the B direction) than a width on the width side (lateral width seen from the A direction) when viewed on the basis of the form of the lower presser. It has a shape.
Incidentally, the middle part of the rectangular lower presser is made circular so that the back side of the lower presser has a diameter commensurate with the length of the lower side of the rotating spring member (see FIG. 3).

FIG. 2 will be described.
FIG. 2 is a diagram illustrating a state where the upper presser is rotated from the state of FIG. 1 to the state of FIG. 2.
FIG. 2 (1) is a perspective view. FIG. 2 (2) is a side view of the width side surface (viewed from the direction A). FIG. 2 (3) is a side view of the length side surface (viewed from the B direction).

  Incidentally, FIG. 1 is a view showing a posture to be attached to one outer lid in an initial operation for sealing. FIG. 2 is a view showing the posture in the sealed state.

FIG. 3 will be described.
3 is a perspective view of the back side of the sealing device shown in FIG.
It is the figure shown about the state of the lower side (D43) of a spring member.
The sealing device shown in FIG. 1 is formed by connecting the upper presser to the lower presser so that the upper presser rotates around the support (vertical side). The tip of the lower side of the spring member connecting the lower presser and the upper presser is only in contact with the lower presser and is not fixed to the lower presser.

FIG. 4 will be described.
4 (1) and 4 (3) show the process of sealing the cardboard box with the sealing tool shown in FIG.
4 (2) is a partial view of the state of FIG. 4 (1), and FIG. 4 (4) is a partial view of the state of FIG.
FIG. 4 (1) is a diagram showing a state where it is attached to one (right) outer lid. In this state, only the lower presser is presented to the other party (left side).
Fold the other (left) outer lid over the inserted lower presser foot, fold the pair of outer lids into a flat state, rotate the upper presser, and connect the pair of outer lids And put it in a sealed state.
When the upper presser is rotated, the lower side of the spring member slides on the back side (lower side) of the lower presser.
FIG. 4 (3) is a diagram showing a sealed state, that is, a diagram showing a state in which the upper presser is rotated and the upper presser is stretched over a pair of outer lids.
By the way, in this document, the expression “only the upper presser rotates with respect to the lower presser” means “the lower presser does not rotate or does not rotate”, and the upper presser and the spring member are fixed. If it is connected to the state, it means that the spring member also rotates together with the upper presser.
Incidentally, the upper presser and the spring member of the sealing tool shown in this document are connected in a fixed state.
FIG. 4 (5) will be described later.

FIG. 5 will be described.
FIG. 5 is a diagram for explaining the lower presser (lower presser member) used in FIG. 1.
FIG. 5A is a perspective view. FIG. 5 (2) is a side view of the width side surface (viewed from the direction A). FIG. 5 (3) is a side view of the length side surface (viewed from the B direction).
As can be seen from FIGS. 5 (1), (2) and (3), a protrusion (namely, a stopper (D31)) sandwiched along the gap between the joints of the pair of outer lids was provided inside the lower presser.

  Incidentally, it is desirable that the height of the protrusion as the stopper is set not to be too high or too low considering the relationship with the thickness of the target outer lid. It is desirable that the protrusion is as thin as possible and hard enough not to bend. Further, it is important that the height of the upper presser does not hinder the rotation of the upper presser in a state where it is sandwiched between the pair of outer lids.

  The function required for the stopper is that the length direction of the lower presser that holds the inside of the pair of outer lids across (crosswise direction) crosses the joint (vertical line) of the pair of outer lids. It is to prevent the state from moving while being directed. Since this is related to life as a sealing tool, it is important to configure it so that it does not become a half-finished product that would slide.

FIG. 6 will be described.
FIG. 6 shows the spring member used in FIG.
FIG. 6A is a perspective view. FIG. 6 (2) is a side view. FIG. 6 (3) is a plan view. FIG. 6 (4) is a front view.
The spring member is formed by bending one wire. In the embodiment, a metal wire of # 12 (2.6 to 2.5 mm diameter) is used, and as viewed from the side, as shown in FIG. 6 (2), the upper side (D41), the vertical side (D42), the lower side (D43) It was supposed to consist of three sides.
The upper side is a portion connected to the upper presser. The vertical side is a portion that also serves as a support. The lower side is a portion that supports the lower presser and at the same time forms a spring.

The spring member shown in FIG. 6 has a shape that twists right and left on the lower side (D43). This bend is to make the spring easy to generate, to make the spring easy to work, or to make the spring soft.
The tip of the lower side (D43) (the part in contact with the lower presser) is formed in such a way that the spring member keeps the balance and at the same time slides the back side of the lower presser.

FIG. 7 will be described.
FIG. 7 is a perspective view of FIG. 1 (3), that is, a view showing a state in which the upper presser and the lower presser are connected by a spring member that also serves as a support column.
The portion that protrudes below the lower presser (D3) is a portion that acts as a spring.
When sandwiched by the outer lid, the distance (W1) between the upper presser (D1) and the lower presser (D3) is widened, that is, the height width (W1) of the portion interposed between the lower presser and the upper presser The spring works in such a way that the length width (W2) of the portion protruding below the lower presser is shortened accordingly.

As described with reference to FIG. 4, this sealing tool is first attached to one outer lid, and after the pair of outer lids are folded together, the upper presser is rotated to obtain a sealed state.
That is, it is accompanied by a rotation operation in attaching / detaching. When the upper presser is rotated, the direction in which the spring works is required to change with the upper presser.
When attached to one outer lid, the spring function is required to act on one outer lid, and when in the sealed state, the spring function is required to work on both the pair of outer lids.

The spring member, when viewed from the side, has a pinch that faces the left or right side of the vertical side that also serves as a support.
When this shape is attached to one outer lid, the spring acts intensively on one outer lid, and when the pair of outer lids are sealed, both of the pair of outer lids are used. The spring works. That is, the lower presser and the upper presser are connected to each other by a spring member having a pinch with a direction as a shape suitable for the characteristics of the sealing tool that involves an operation of rotating the upper presser.

In this document, as shown in Fig. 1 (2) (3) and Fig. 2 (2) (3), the lower presser and the upper presser are expressed in a certain interval as the state when not in use. However, the vertical side of the spring member is attached in such a way as to pass the lower presser up and down, and the lower side of the spring member is not fixed to the lower presser. The interval of is not necessarily maintained at a constant interval, and the lower presser has play (allowance for movement).
As a result, it is easy to pinch when sealing and can be used conveniently. That is, it is convenient in the operation of FIG.

  Hereinafter, a supplementary explanation of the spring function or the spring member will be given.

  Needless to say, the spring function referred to in the present invention is a function of adjusting spontaneously or automatically with a stress or a repulsive force generated by the action of the pin opening being pushed and spread.

In this document, as an example, a spring member having approximately three sides of an upper side, a vertical side, and a lower side as viewed from the side as shown in FIG.
The spring member shown in FIG. 6 has a shape that makes a left and right detour with respect to the lower side as a form for improving the function of the spring, but a spring that is arbitrarily set such as a spiral form. It may be.
Further, if the diameter of the lower presser is to be increased, it may extend diagonally straight without making a detoured shape or a spiral shape on the lower side.
Incidentally, the spring member shown in FIG. 6 is an example corresponding to the shape of the sealing tool shown in FIG.

It is desirable that the spring member has a shape in which the vertical side and the lower side do not protrude excessively downward when assembled in the sealing tool.
As shown in FIG. 6, it is preferable to make the lower side spring function flat. Since the portion protruding below the presser foot may damage what is contained in the cardboard box, it is good to take measures such as covering the protrusion.

  The spring member has enough spring strength to connect in a stable state so that the pair of outer lids do not float up, or the softness of the springs when attaching / detaching, or how much thickness (outer lid thickness) is different It is important to consider whether to deal with the above.

  The upper presser seen in the sealing tool shown in FIG. 1 is formed by assembling a plate-like member as the upper presser on the upper side of the spring member, but is the upper side of the spring member bent flatly, that is, is the surface formed? For example, the upper side of the spring member also serves as the upper presser may be formed by bending it into a shape that bends to the left or right as in the lower side shown in FIG.

Regarding the spring member, points to be particularly considered will be described.
Although the pinch opening is slightly pushed out, it is important that the spring works without losing the overall posture.
It is desirable that the spring be able to cope with the “bending” of the lower side.
As a form for that purpose, as shown in Fig. 6 (1) and (3), measures such as forming a detour to the lower side as a form to make the lower side "easy to be moderate" or "easy to work as a spring". Good to take.

  The spring member is operated to rotate the upper presser so that the vertical side does not bend in the clamped state, or the bent portion divided into the lower side and the upper side does not return. It is necessary to consider the material used or the material so that the vertical side will not be twisted.

In the examples, a metal wire of # 12 (2.6 to 2.5 mm diameter) was used as a material for the spring member. If the difference in the thickness of the outer lid was about 1 to 3 mm, it could be handled.
The material, material, thickness, etc. used for the spring member may be arbitrarily determined.

  The following describes the method taken to suit the handling of the cargo.

As can be seen from the shape of FIG. 4 (4), the sealing tool shown in this document is pushed down from above under the assumption that there is no inner lid, that is, no support for the inner lid. When receiving the action (P), as shown in FIG. 4 (5), the pair of outer lids and sealing tools are configured to fall down (inside the box) while being pressed.
That is, as shown in FIG. 4 (4), the lower presser (D3) has a length sufficient to hold the pair of outer lids so as not to lift upward (outside) (hereinafter also referred to as a long length). However, the upper presser (D1) has a length that is insufficient to hold the pair of outer lids so as not to fall down (inside the box) (hereinafter also referred to as a short length). It is said.
In other words, it forms a “shallow crevice” formed by a long presser foot having a long length and an upper presser having a short length.
The sealing tool shown in this document is based on the method that the function of pressing the pair of outer lids so as not to fall downward depends on the support of the pair of inner lids.

  By adopting this method, the length of the upper presser can be made “short length width”, that is, the upper presser can be reduced, and another box is stacked on the sealed cardboard box. In some cases, the protrusion of the upper presser itself is caught or stuck, or the stacked boxes are not stable, so that troubles in handling the load can be reduced.

By setting the lower presser to “long length width”, the sealing tool can be sealed without being entangled with the inner lid, and the position near the center of the opening of the cardboard box, that is, the distance between the pair of inner lids facing each other It was designed to be sealed by mounting inside.
The outer lid of the cardboard box has a property of being gently bent (bent). There is also deflection over time. There is also deflection caused by the load of other boxes that are stacked.
In the present invention, the upper presser is made small and thin, and the presence of the upper presser is buried in the deflection, so that the center of the opening having the largest deflection is prevented so as not to interfere with the handling of the load. It can also be attached to the position.

By using the method of sealing with a shallow depth of mouth, compared to the traditional method of sealing locally with a deep depth of mouth, both for the outer lid of the cardboard box and for the sealing tool , I tried not to overdo it.
For example, when an excessively heavy box is stacked, as shown in FIG. 4 (5), the sealing tool can escape (disengage) from the outer lid. Outer lid also damage (or break) is released from the closure without, in which took the form of a.
Since the sealing tool depends on the support of the pair of inner lids for the function of pressing the pair of outer lids so that they do not fall downward, the pair of outer lids actually have the pair of outer lids shown in FIG. However, the relationship between the sealing tool and the outer lid has a play (motion allowance) as shown in FIG. 4 (5).

  The following are general supplementary items.

The stopper shown in FIG. 5 is an example corresponding to the shape of the lower presser shown in FIG. 1, and the stopper according to the present invention is not limited in its form. If the state of the sealing tool, especially the shape of the lower presser, is changed, the way the stopper is changed will be changed.
The stopper is not limited to the shape shown in this document. For example, if the sealing tool as shown in this document is connected in a vertical direction, it will have two columns, and the column itself will be a stopper. . Or it is good also as a stopper to comprise the shape inserted in the hole in the cross section of the edge of an outer cover.

  The spring member does not need to stick to the shape composed of the upper side, the vertical side, and the lower side when viewed from the side. For example, a leaf spring may be used. That is, the form of the spring member may be arbitrarily determined.

Although the present invention has been described with the cardboard box as the main object and with the cardboard box in mind, the present invention can be applied to or used in boxes other than the cardboard box.
In this book, these boxes are collectively called packaging boxes.

  This sealing tool is not limited in terms of material and material throughout. As long as necessary functions are not impaired, the shape, contour, design, size, form and the like may be arbitrarily determined.

  The entire contents of the present invention are described through the entire drawings, and the technical contents described in the claims are not limited by the technical contents described in the individual drawings.

The sealing device of the present invention has a practicality that is synergistic with the combination of having a stopper, having a spring function, and having a form suitable for handling.
Each of the invention “having a stopper”, the invention “having a spring function”, and the invention “suitable for handling” can also be applied to conventional sealing devices.

  By providing a stopper to prevent the lower presser from rotating in conjunction with the rotation of the upper presser, the operability is improved and it is easy to use. In addition, it can be used conveniently even if there is a slight difference in the thickness of the outer lid, or it can be used for cargo handling. It can be conveniently used for repeated opening and closing of the lid, and can be widely used from home use to business use such as storage, management, and transfer of goods.

Packaging box C1 Width C2 Length C3 Inner lid C4 Outer lid Sealing tool D1 Upper presser D2 Post D3 Lower presser D31 Stopper D4 Spring member Spring member D41 Upper side D42 Vertical side D43 Lower side

Claims (4)

(A) The present invention relates to a packaging box sealing tool having a pair of inner lids and a pair of outer lids,
(B) This sealing tool is formed by connecting a lower presser and an upper presser via a support,
(C) In contrast to the lower presser foot, the upper presser foot is connected in a form that rotates around a support column.
(D) Even if the upper presser rotates, the lower presser has a function or form as a stopper so that the lower presser does not interlock.
(E) A packaging box sealing tool having the above-mentioned characteristics.   The sealing tool according to claim 1, wherein the lower presser has a stopper made of a protrusion that is sandwiched between the joints of the pair of outer lids. (A) The lower presser and the upper presser are connected via a spring member that also serves as a support.
(B) The spring member has a spring function that adjusts the height width of the column in the portion interposed between the lower presser and the upper presser,
(C) The sealing device according to claim 1 or 2, which has the above-mentioned characteristics. (A) The lower presser has a “long length width” sufficient to hold the pair of outer lids so that they do not float upward (outside).
(B) The upper presser has a “short length width” that is insufficient to hold the pair of outer lids so as not to fall downward (inner side).
The function of pressing the pair of outer lids so as not to fall downward depends on the presence of the pair of inner lids, that is, depends on the support of the pair of inner lids.
(C) The sealing device according to claim 1, 2, or 3, having the above characteristics.

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