JP4114745B2 - container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a box-shaped container that accommodates an object to be accommodated, and in particular, includes a cylindrical body portion that is open at both ends, and a lid piece that extends from an opening edge of the body portion, and the body portion And a container in which the lid piece is formed from a single sheet.
[0002]
[Prior art]
Conventionally, as shown in FIG. 6, as a container for storing an object to be stored, a cylindrical body portion 50 formed of a single sheet (for example, a plastic sheet or a paper sheet) and having both ends opened, and the body And a lid piece 51 extending from the opening edge of the portion 50 as a base end, and the lid piece 51 is bent toward the opening side to close the opening of the body portion 50 to form a box shape. .
[0003]
In order to prevent the cover piece 51 from opening from the state of closing the opening of the body portion 50 due to the elasticity of the sheet when the opening of the body portion 50 is closed by the cover piece 51, the cover piece An insertion piece 53 is formed at the distal end portion of 51, and an insertion slit 54 for inserting the insertion piece 53 is formed in the peripheral wall of the body portion 50.
[0004]
The insertion piece 53 is formed in a convex shape from the distal end side of the lid piece 51 toward the proximal end side by cutting the lid piece 51.
[0005]
The insertion piece 53 is in a posture substantially orthogonal to the peripheral wall of the body portion 50 by bending the distal end side of the insertion piece 53 in the lid piece 51, and is inserted into the insertion slit 54 to the vicinity of the root of the insertion piece 53 in this posture. It can be done.
[0006]
Then, in the state where the insertion piece 53 is inserted into the insertion slit 54, the insertion piece 53 extends along the peripheral wall of the trunk portion 50 by correcting the bending of the lid piece 51 and bringing the distal end side closer to the peripheral wall of the trunk portion 50. The posture (inclined with respect to the peripheral wall of the body portion 50) is engaged, and the vicinity of the base of the insertion piece 53 (the end of the notch for forming the insertion piece 53) and the edge forming the insertion slit 54 are engaged. It is supposed to be.
[0007]
Accordingly, it is possible to prevent a situation in which the lid piece 51 is lifted by the elastic force of the lid piece 51 itself and the opening of the trunk portion 50 is opened.
[0008]
[Problems to be solved by the invention]
However, as described above, the insertion piece 53 is formed in a convex shape from the distal end side to the proximal end of the lid piece 51, so that the insertion piece 53 is inclined with respect to the peripheral wall of the trunk portion 50 while being inserted into the insertion slit 54. The insertion slit 54 and the insertion piece 53 are engaged with each other when the posture is changed, but the lid piece 51 is configured to close the opening by bending to the opening side of the body portion 50. Therefore, the elasticity of the lid piece 51 itself acts, and the lid piece 51 may cause the vicinity of the base of the insertion piece 53 to be pulled toward the opening side of the trunk portion 50.
[0009]
Therefore, as shown in FIG. 7, the insertion piece 53 rotates around the insertion portion with respect to the insertion slit 54 as a fulcrum and assumes a posture that intersects the peripheral wall 55 (a substantially approximate posture when inserted into the insertion slit 54). As a result, the insertion piece 53 may be easily removed from the insertion slit 54.
[0010]
In particular, in a so-called round type container in which the opening of the body portion 50 is closed with the lid piece 51 bent in a curved shape, a large elastic force is always applied to the lid piece 51 due to the curvature of the lid piece 51. Therefore, the vicinity of the base of the insertion piece 53 is always pulled, and the lid piece 51 is likely to cross the peripheral wall 55 of the trunk portion 50, so that the insertion piece 53 is easily removed from the insertion slit 54. Is remarkable.
[0011]
Further, when the lid piece 51 has a fold when the insertion piece 53 is inserted into the insertion slit 54, the insertion piece 53 is in a posture along the peripheral wall of the trunk portion 50 (a posture inclined with respect to the peripheral wall). However, if the elastic force of the lid piece 51 acts in this state, the insertion piece 53 may come out of the insertion slit 54, and the closure of the opening of the body portion 50 by the lid piece 51 may be released.
[0012]
Therefore, in view of such circumstances, the present invention provides a container that can reliably maintain a state in which the opening of the trunk portion is closed with a lid piece that extends to the opening edge of the trunk portion. Let it be an issue.
[0013]
[Means for Solving the Problems]
  The container according to the present invention is as described in claim 1.plasticA cylindrical body part formed from a sheet and having both ends opened, and a lid piece extending from the opening edge of the body part to the base end,Without bending the vicinity of the base end to make a corner,On the opening sideCurvedIt is configured to be able to close the opening by being bent, and has an insertion piece formed in a convex shape from the distal end side to the proximal end side of the lid piece at the distal end portion. In a container having an insertion slit in a peripheral wall into which an insertion piece of a lid piece that closes the opening of the trunk part is inserted, the trunk part and the lid piece are in a state where the insertion piece is inserted into the insertion slit. Engagement means for engaging each other on the distal end side of the insertion pieceThe engaging means is composed of an arcuate engagement piece provided at the tip of the lid piece, and an arcuate engagement slit provided in the body so that the engagement piece can be inserted; The engagement piece is provided so as to be inclined with respect to the peripheral wall of the trunk portion while being inserted into the engagement slit, and the engagement slit is a lid piece that closes the opening of the trunk portion. In a state where the tip portion is opposed to the peripheral wall of the trunk portion, it is formed by being cut into the peripheral wall of the trunk portion so as to form a circular arc-shaped piece portion facing the engagement piece in substantially the same direction. ThatIt is characterized by.
[0014]
According to the container, since the insertion piece provided at the distal end portion of the lid piece is formed in a convex shape from the distal end side to the proximal end side of the lid piece, when inserting the insertion piece into the insertion slit In the same manner as in the prior art, with the opening of the body portion closed by the lid piece, the distal end side is bent from the insertion piece in the lid piece, and the insertion piece is inserted into the insertion slit so that the insertion piece is substantially perpendicular to the peripheral wall of the body portion. It will be. And by making the part of the front end side from an insertion piece approach the surrounding wall of a trunk | drum, an insertion piece will be in the state which approximated the original attitude | position and followed the surrounding wall of the trunk | drum.
[0015]
In this state, if the body portion and the lid piece are engaged with each other on the tip side from the insertion piece by the engaging means, the portion on the tip side from the insertion piece in the lid piece is separated from the peripheral wall of the body portion. It will be regulated. Therefore, even if the elastic force of the lid piece acts and the lid piece is pulled near the base of the insertion piece or the tip side thereof toward the opening side of the trunk portion, the engagement means engages from the peripheral wall of the trunk portion. The separation of the tip of the lid piece is regulated, and the posture inserted in the insertion slit (the posture along the peripheral wall of the trunk portion) can be maintained, and the state where the trunk portion is closed with the lid piece is reliably maintained. can do.
[0017]
  Further, the engaging means is composed of an arcuate engagement piece provided at the tip of the lid piece, and an arcuate engagement slit provided in the body part so that the engagement piece can be inserted, Since the engagement piece is provided so as to be inclined with respect to the peripheral wall of the trunk portion in a state of being inserted into the engagement slit,Even if a force to move the tip side away from the other side of the insertion piece acts on the engaging means,Arc-shapedInserted into the engagement slitArc-shapedSince the engagement piece has a posture inclined with respect to the other, that is, a posture crossing the separation direction,Arc-shapedTo engagement slitArc-shapedBy inserting the engaging piece, it is possible to counter the force to be separated. by this,Arc-shapedEngagement pieceArc-shapedIt is possible to reliably prevent separation from the engagement slit.Here, the term “slit” is a concept including not only a linear gap such as a cut but also a long hole.
[0018]
  The engagement slit is a piece having an arc shape in substantially the same direction facing the engagement piece in a state where the tip end portion of the lid piece that closes the opening of the trunk portion is opposed to the peripheral wall of the trunk portion. Since it is formed by cutting into the peripheral wall of the body part so as to form a part,Engagement pieceForm an arcWith one part facing each otherArc-shapedWhen the engaging piece is pressed toward the axis of the trunk,Form an arcOne part isArc-shapedBend with the engagement pieceArc-shapedAs the gap between the engagement slits increases,Arc-shapedEngagement piece andForm an arcThe deflection angle of one part becomes large, and finallyArc-shapedThe tip of the engagement pieceArc-shapedIt will get over the edge of the engagement slit.
[0019]
  Then, if you release the press in this state,Arc-shapedEngagement piece andForm an arcOne part is restored from the bent state to the original state,Arc-shapedThe engagement piece is around the torsoOn the wallWith a slanted attitudeArc-shapedIt will be in the state inserted in the engagement slit. Therefore,Arc-shapedIn one step (one touch) of pressing the engagement pieceArc-shapedEngagement pieceArc-shapedIt can be inserted into the engagement slit.
[0020]
  Moreover, when opening the lid piece and opening the opening of the trunk portion, by forcibly separating the tip of the lid piece from the peripheral wall of the trunk portion,Arc-shapedThe engaging piece is deformedArc-shapedThe lid piece is bent so that the tip of the lid piece rotates and moves out of the engagement slit.
[0021]
  If it does so, it will be in the attitude | position which the insertion piece cross | intersected the surrounding wall by bending of the cover piece, and a cover piece can be opened by pulling out an insertion piece as it is from an insertion slit. Therefore,Arc-shapedFrom the engagement slitArc-shapedA series of operations for opening the lid piece from the operation for extracting the engaging piece can be performed in one step (one touch).
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a container according to an embodiment of the present invention will be described with reference to the accompanying drawings.
[0023]
As shown in FIGS. 1 and 2, the container according to the present embodiment includes a cylindrical body portion 1 having both ends (upper and lower ends) opened, and a lid piece 2 that closes the upper end opening of the body portion 1. Yes.
[0024]
The body 1 includes a pair of first walls 3a and 3b having a planar shape facing each other and a pair of second walls 4a and 3b that connect side ends of the pair of first walls 3a and 3b and face each other. 4b and is formed in a rectangular tube shape.
[0025]
The first walls 3a and 3b are formed such that one corner on the upper end side is formed in a quarter arc shape, and the second walls 4a and 4b are formed in a substantially rectangular shape in front view. The second wall 4a is set to be longer in the vertical direction than the other second wall 4b. Here, the “quarter arc shape” means an arc whose inner angle is set to approximately 90 °, and the inner angle refers to two virtual lines connecting the center of the arc and both ends of the arc. The angle made by
[0026]
Each of the first walls 3a and 3b and the second walls 4a and 4b has a lower end substantially flush with the horizontal direction, and the upper end of one second wall 4a is the other of the first walls 3a and 3b. The upper end of the other second wall 4b substantially coincides with the end portion of the edge forming an arc shape forming one corner of the first walls 3a, 3b.
[0027]
One second wall 4a is provided with an insertion slit 6 for inserting an insertion piece 5 to be described later at the upper end. The insertion slit 6 is a cut formed so as to penetrate the second wall 4a. The insertion slit 6 (cut) is formed in a substantially straight shape in the short direction (lateral direction) of the second wall 4 a, and both end portions are cut slightly toward the lower end of the body portion 1. The cut cut toward the lower end is formed in an arc shape with a convex shape on both ends (side ends) in the short direction of the second wall 4a.
[0028]
The lid piece 2 extends from the upper end of the other second wall 4b as a base end, and is curved in a quarter arc shape corresponding to the shape of the upper end edge of the first walls 3a, 3b. By doing so, the upper end opening of the trunk portion 1 is closed.
[0029]
Specifically, the lid piece 2 includes a lid portion 7 that extends with the opening edge of the trunk portion 1 (the upper edge of the second wall 4b) as the base end, and extends from the distal end of the lid portion 7. And a bent portion 8 to be formed.
[0030]
The lid portion 7 is configured to close the upper end opening of the body portion 1 by bending in a curved shape so as to correspond to the shape of the upper end edge of the first walls 3a and 3b. That is, the container is a so-called round type that closes the upper end opening of the trunk portion 1 without bending the connection portion (near the base end of the lid portion 7) of the second wall 4b with the lid portion 7 so as to form a corner. Container.
[0031]
The bent portion 8 is bent at a folding ruled line 9 formed at the boundary with the lid portion 7 so as to face the outer surface of one second wall 4 a of the body portion 1. The bent piece 8, which is the distal end portion of the lid piece 2, is formed with the insertion piece 5 formed by cutting the lid piece 2 and projecting from the distal end side to the proximal end side.
[0032]
The insertion piece 5 is bent from the notch by bending the front end side of the bent portion 8 with a folding ruled line 10 extending in a direction perpendicular to the extending direction of the lid piece 2 from both ends of the cut forming the insertion piece 5. It will be in a posture intersecting with the bent portion 8 on the end side (crossing the second wall 4a of the opposite body portion 1), and in this posture, the outer surface side of the body portion 1 (the outer surface side of one second wall 4a) To the insertion slit 6 of the body 1.
[0033]
The body 1 and the lid piece 2 configured as described above are engaged with each other on the distal end side of the bent portion 8 (the distal end side of the lid piece 2) from the insertion position in a state where the insertion piece 5 is inserted into the insertion slit 6 as described above. Engaging means for mating.
[0034]
The engagement means is formed on the engagement piece 11 provided on the distal end side of the lid piece 2 with respect to the insertion piece 5 and one second wall 4a of the body portion 1, and the engagement piece 11 is inserted therein. The engagement slit 12 is constituted.
[0035]
The engaging piece 11 is formed to protrude from the tip of the bent portion 8 which is also the tip of the lid piece 2, and the outer edge has an arc shape. The engagement piece 11 is shaped so that the tip can be inserted into the engagement slit 12 in a state where the insertion piece 5 is inserted into the insertion slit 6.
[0036]
The engagement slit 12 is a cut formed by cutting one second wall 4 a so as to extend in the lateral direction of the body portion 1. Specifically, the engagement slit 12 is formed by cutting the second wall 4a into a circular arc shape with a convex shape toward the lower side (the lower end side of the body portion 1). As a result, by forming the engagement slit 12 on one of the second walls 4a, the outer edge forms an arc shape corresponding to the shape of the engagement slit 12 (cut), and is on the lower end opening side of the body 1. A convex piece 13 is formed.
[0037]
The piece 13 is formed when the bent portion 8 (the end portion of the lid piece 2) is opposed to the second wall 4a in a state where the upper end opening of the trunk portion 1 is closed by the lid piece 2 (lid portion 7). It is formed so as to be opposed to the engagement piece 11 and to have a convex shape in the same direction (the lower end side of the body portion 1). In other words, the engagement slit 12 is formed by cutting the second wall 4a so as to form the piece 13 having the above configuration.
[0038]
Further, in the container having the above-described configuration, the bottom piece 14 that closes the lower end opening of the body 1 and the opening of the body 1 are closed at the lower end opening edge of the body 1 in order to close the lower end opening of the body 1. A pair of folding flaps 15 and 15 are provided to prevent a gap from being formed between both side end portions of the bottom piece 14 and the body portion 1.
[0039]
The bottom piece 14 extends from the lower end of the other second wall 4b of the body 1 (the lower end opening edge of the body 1) as a base end. The bottom piece 14 is bent at a folding ruled line 16 formed at the boundary with the second wall 4b, so that the bottom portion 17 that closes the lower end opening of the body portion 1 is extended to the tip of the bottom portion 17 so that the bottom piece 14 It is comprised with the bending part 18 which forms a front-end | tip part. The bent portion 18 can be inserted into the lower end opening of the body portion 1 on the side of the second wall 4a by bending the bottom piece 14 with a folding ruled line 19 formed at the boundary with the bottom portion 17. It has become.
[0040]
The pair of folding flaps 15 and 15 are extended from the lower ends of the first walls 3a and 3b (the lower end of the body portion 1) as the base ends. The pair of folding flaps 15, 15 are folded to the opening side of the body portion 1 at a folding ruled line 20 formed at the boundary with the bottom portion 17.
[0041]
The bottom piece 14 and the pair of folding flaps 15 and 15 are inserted into the lower end opening of the trunk portion 1 by inserting the bent portion 18 into the lower end opening of the trunk portion 1 with the pair of folding flaps 15 and 15 folded into the opening side of the trunk portion 1. The bottom piece 14 (bottom portion 17) and the folding flaps 15 and 15 can keep the lower end opening of the trunk portion 1 closed.
[0042]
The container having the above configuration is formed by bending a single plastic sheet cut into a predetermined shape. The plastic sheet will be described in more detail. The plastic sheet is made of polypropylene having a thickness of 0.2 to 0.4 mm, polyethylene terephthalate, or the like. As shown in FIG. 3, the body 1 (first walls 3a, 3b, And the second wall 4a, 4b), the body forming part 30, the cover forming part 31 forming the cover piece 2, the bottom forming part 32 forming the bottom piece 14, and the folding flaps 15, 15 are formed. And a flap forming portion 33.
[0043]
The body forming portion 30 has a substantially rectangular shape for forming three first regions 34a, 34b, 34c having a substantially strip shape and a second wall 4a, 4b so as to form the first walls 3a, 3b. It consists of two second regions 35a and 35b.
[0044]
Two first regions 34a, 34b of the first regions 34a, 34b, 34c are formed such that one corner at one end in the longitudinal direction is formed in a circular arc shape of one quarter, and the remaining one first region 34c is formed in a substantially rectangular shape. Each of the first regions 34a, 34b, 34c is formed side by side with the first region 34c formed in a rectangle as an end, with the second regions 35a, 35b interposed therebetween.
[0045]
Each of the second regions 35a and 35b is formed in a rectangular shape, the width in the short direction is set to be equal, and the length in the longitudinal direction is one second region 35a that forms one second wall 4a. In contrast, the other second region 35b forming the other second wall 4b is set shorter. The second regions 35a, 35b are formed between the three first regions 34a, 34b, 34c, respectively, and the other end in the longitudinal direction is collinear with the other ends of the first regions 34a, 34b, 34c. Both end edges in the short direction are connected to the short direction edges of the first regions 34a, 34b, and 34c so as to be positioned.
[0046]
The insertion slit 6 is formed at one end of the long (one) second region 35a by being cut in the short direction at a predetermined interval from one end to the other end in the longitudinal direction.
[0047]
Further, an engagement slit 12 is formed by cutting in the short direction at a position having a predetermined interval from the insertion slit 6 (straight cut) toward the other end. As described above, the engagement slit 12 is formed by being cut in an arc shape so as to form a convex shape on the other end side in the longitudinal direction of the second region 35a, and adjacent to the engagement slit 12 by the cut. On the one end side, the piece 13 is formed in a convex shape toward the other end in the longitudinal direction of the second region 35a.
[0048]
In the body forming portion 30 having the above-described configuration, a bent ruled line 36 is formed on the boundary line between the regions 34a, 34b, 34c, 35a, and 35b.
[0049]
The lid forming portion 31 is extended from one end in the longitudinal direction of the short (other) second region 35b as a base end. The lid forming portion 31 includes a lid region 31a that forms the lid portion 7 provided continuously with the first region 34a, and a bent region 31b that is provided continuously with the lid region 31a and forms the bent portion 8. It consists of A bent ruled line 9 is formed at the boundary between the lid region 31a and the bent region 31b.
[0050]
The lid region 31a is formed in a substantially rectangular shape and has a length corresponding to the length of the edge of the corner formed in the arc shape of the first regions 34a, 34b, and one end of the second region 35b. It extends from.
[0051]
In the bent region 31b, the insertion piece 5 is formed so that the lid forming portion 31 (folded portion 8) is cut in an arc shape and has a convex shape toward the lid region 31a. Further, the bent region 31b is provided with a bent ruled line 10 extending in a direction perpendicular to the extending direction from both ends of the cut forming the insertion piece 5, and an outer peripheral edge is provided at the tip of the bent region 31b. The engagement piece 11 formed in an arc shape is extended.
[0052]
The bottom forming portion 32 extends from the other end in the longitudinal direction of the second (other) second region 35b as a base end. The bottom forming portion 32 includes a bottom region 32a extending to the second region 35b and forming the bottom portion 17, and a bending region 32b extending to the tip of the bottom region 32a and forming the bending portion 18. Has been. Bending ruled lines 16 and 19 are formed at the boundary between the second region 35b and the bottom region 32a and at the boundary between the bottom region 32a and the bending region 32b.
[0053]
The flap forming portion 33 includes the first region 34b sandwiched between the second regions 35a and 35b among the three first regions 34a, 34b and 34c, and the first region of any one of the remaining first regions 34a and 34c. The other end in the longitudinal direction of 34 a is extended to the base end, and a folded ruled line 20 is formed at the boundary between the first regions 34 b and 34 c and the flap forming portion 33.
[0054]
In order to form a container from the plastic sheet having the above-described configuration, first, the body forming portion 30 is bent at the folding ruled line 36, and the first regions 34a and 34c at both ends are surface-bonded, whereby the rectangular tube-shaped body 1 is formed. Form the embodiment shown in FIG.
[0055]
Then, each flap forming portion 33 is folded along the folding ruled line 20 (folded toward the inner side of the body 1), and the bottom forming portion 32 (bottom region 32a, bending region 32b) is folded along the folding ruled lines 16, 19. By inserting the bending region 32b (bending portion 18) into the body 1 (between the folding flaps 15 and 15 and the second wall 4a of the body 1), the lower end opening of the body 1 is completely closed. It will be in a state and will be in the state which can accommodate a to-be-contained object from an upper end opening.
[0056]
Then, an object to be accommodated is accommodated in the body portion 1, the bent region 31 b (the bent portion 8) is bent along the folding ruled line 9, and the lid piece 2 (the lid region 31 a of the lid forming portion 31) is the first wall. The curved regions 31b (folded portions 8) are opposed to the outer surface side of one of the second walls 4a along the arcuate edges 3a and 3b.
[0057]
Then, as shown in FIG. 4 (a), in the state where the vicinity of the bent ruled line 9 formed at the boundary between the lid portion 7 and the bent portion 8 is substantially in contact with the upper end surface of one second wall 4a. The distal end side of the bent portion 8 is bent outward along a bent ruled line 10 extending in the lateral direction from the cut forming the insertion piece 5.
[0058]
If it does so, it will become the attitude | position which the insertion piece 5 cross | intersected (substantially orthogonal) with the 2nd wall 4a with this bending (movement of the front end side). In this state, the distal end of the insertion piece 5 is opposed to the insertion slit 6 and can be inserted into the insertion slit 6.
[0059]
When the insertion piece 5 is inserted into the insertion slit 6 and the tip of the bent portion 8 is brought close to the body 1 (second wall 4a), the insertion piece 5 is inserted into the insertion slit as shown in FIG. 6 and the posture along the wall surface of the second wall 4a, that is, the posture inclined with respect to the second wall 4a (wall surface of the peripheral wall).
[0060]
In this state, as shown in FIG. 4C, when the tip end portion (engagement piece 11) of the bent portion 8 is pressed toward the barrel portion 1, the piece portion 13 is pushed by the engagement piece 11 and the barrel portion 1 is pressed. Bends (bends) inside. When the bending angle of the engagement piece 11 and the piece portion 13 is increased, the distal end of the engagement piece 11 gets over the edge on the lower end side of the body portion 1 that forms the engagement slit 12.
[0061]
In this state, as shown in FIG. 4 (d), the engagement piece 11 and the piece 13 try to return to their original postures by elasticity, and the respective bending angles become smaller, and the tip of the engagement piece 11 becomes smaller. Is inserted into the engagement slit 12 (a state sandwiched between the lower edge of the engagement slit 12 and the piece 13 formed by the engagement slit 12), and the lid piece 2 Thus, the upper end opening of the body 1 is closed.
[0062]
In this state, the engagement piece 11 is in a posture along the wall surface of the second wall 4a, and the engagement piece 11 and the engagement slit 12 are located on the lower end side of the body 1 from the insertion slit 6 into which the insertion piece 5 is inserted. Is inserted, and the inserted piece 5 is maintained in a posture along the second wall 4a. Both end portions of the notch forming the inserted piece 5 and both end portions of the insertion slit 6 are maintained. The hooked state is maintained.
[0063]
Accordingly, the container can prevent the insertion piece 5 from being easily pulled out of the insertion slit 6, and the lid piece 2 easily opens the upper end opening of the body portion 1. Can be prevented.
[0064]
On the other hand, in order to open the upper end opening of the trunk portion 1 by opening the lid piece 2 from the state in which the upper end opening of the trunk portion 1 is closed by the lid piece 2, the second wall is forcibly formed near the tip of the bent portion 8. If it is made to separate from 4a, while the engagement piece 11 will detach from the engagement slit 12, the said bending part 8 itself will bend by the bending ruled line 10 extended from the edge part of the notch which forms the insertion piece 5. FIG. As a result, along with this, the insertion piece 5 is in a posture intersecting (substantially orthogonal) with the second wall 4 a, the insertion piece 5 comes out of the insertion slit 6, and the lid piece 2 is formed at the upper end of the trunk portion 1. The opening can be changed from a closed state to an open state.
[0065]
That is, simply by turning the front end portion of the lid piece 2 from the body portion 1, the engagement by the engaging means and the engagement between the insertion piece 5 and the insertion slit 6 are released in one step, and the lid piece 2 Can be opened with one touch.
[0066]
According to the container configured as described above, the body 1 and the lid piece 2 are provided with engaging means that engage with each other on the distal end side of the lid piece 2 from the insertion piece 5 in a state where the insertion piece 5 is inserted into the insertion slit 6. Therefore, when the body 1 and the lid piece 2 are engaged with each other by the engaging means, the insertion piece 5 inserted into the insertion slit 6 is inclined from the posture at the time of insertion into the insertion slit 6 and the first portion of the body 1 is inserted. The posture is substantially along the two walls 4a, and the insertion piece 5 can be prevented from being detached from the insertion slit 6.
[0067]
Further, the engaging means is constituted by an engaging piece 11 provided at the tip of the lid piece 2 and an engaging slit 12 formed in the second wall 4a of the body portion 1 and inserted into the engaging slit 12. Since 11 is inclined with respect to the wall surface of the second wall 4a of the body portion 1, the body portion 1 and the lid piece 2 can be reliably engaged with each other with a simple configuration.
[0068]
Furthermore, the engagement piece 11 is extended to the tip of the bent portion 8 (lid piece 2), and the engagement slit 12 for inserting the engagement piece 11 is provided in the body portion 1 (second wall 4a). The engagement piece 11 is easily inserted into the engagement slit 12 so as to be symmetrical with the insertion piece 5 (symmetric in the vertical direction) and along the wall surface of the peripheral wall (second wall 4a) of the trunk portion 1. be able to. As a result, any portion in the range from the vicinity of the base of the insertion piece 5 to the distal end side is generated by the action of the elastic force or the like of the lid piece 2 "the distal end of the lid piece 2 is separated from the second wall 4a of the body 1. Force to cause the insertion piece 5 to intersect with the second wall 4a of the body portion 1 (an attempt to rotate the insertion piece 5 with the insertion portion of the insertion piece 5 with respect to the insertion slit 6 as a fulcrum) The body portion 1 and the lid piece 2 can be engaged with each other in a state where the force can be surely counteracted.
[0069]
Further, since the engagement slit 12 is formed by cutting the second wall 4a so as to form a piece 13 having a convex shape on the lower end side of the body portion 1, The tip of the engagement piece 11 can be inserted into the engagement slit 12 in only one step of pressing to the one side (one touch).
[0070]
Further, when the lid piece 2 is opened, the engagement piece 11 can be removed from the engagement slit 12 only by separating the bent portion 8 from the second wall 4a, and the insertion piece 5 can be removed from the insertion slit 6. The lid piece 2 can be opened with one touch.
[0071]
In addition, the container of this invention is not limited to above-described embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention.
[0072]
The container according to the embodiment is an engagement means for engaging the lid piece 2 and the body 1 with each other on the distal end side of the lid piece 2 from the insertion position in a state where the insertion piece 5 is inserted into the insertion slit 6. The engaging piece 11 is extended to the tip of the bent portion 8, but the engaging piece 11 is not limited to this, and the engaging piece 11 is, for example, the bent portion 8 as in the insertion piece 5. You may make it cut and form. In this case, of course, the engagement slit 12 is formed at a position where the engagement piece 11 is inserted.
[0073]
Moreover, in the said embodiment, although the engagement piece 11 was extendedly provided in the front-end | tip of the bending part 8 (lid piece 2), it is not limited to this, For example, the lid piece 2 is cut and the insertion piece 5 and Similarly, a convex shape may be formed toward the base end.
[0074]
In the above embodiment, one engagement piece 11 is provided at the tip of the bent portion 8, but the present invention is not limited to this. For example, the width of the bent portion 8 is formed at the tip edge of the bent portion 8. A plurality may be provided with an interval in the direction. Moreover, you may make it project a 2nd engagement piece on the both sides of the 1st engagement piece protruded from the front-end | tip of the bending part 8 in the horizontal direction. In this case, the engagement slit 12 has a first engagement slit corresponding to the first engagement piece so as to insert each of the first engagement piece and the second engagement piece. And a second engagement slit corresponding to the second engagement piece may be formed in the body portion 1 so as to extend in the vertical direction.
[0075]
In the above embodiment, the engagement slit 12 is formed by an arc-shaped cut, and accordingly, the piece portion 13 is formed so that the edge portion has an arc shape. However, the present invention is not limited to this. The engagement slit 12 is formed by a U-shaped cut and the piece 13 is formed in a square shape, or the direction opposite to the engagement slit 12 of the above-described embodiment (a convex shape is formed on the upper end side of the body portion 1). (Curved shape) may be formed, and a convex piece 13 may be formed on the upper end side of the body portion 1. In addition, when it is not necessary to fit the engagement piece 11 into the engagement slit 12 with one touch, the engagement slit 12 may be formed by a linear cut.
[0076]
In the above embodiment, the engagement slit 12 is formed by cutting the second wall 4a. However, the present invention is not limited to this, and the engagement slit 12 is formed in the second wall 4a. You may make it comprise with a long hole.
[0077]
In the said embodiment, one corner | angular part in the upper end of 1st wall 3a, 3b of the trunk | drum 1 is formed in a circular arc shape of 1/4, and the connection part (lid piece 2 of the lid piece 2 and the 2nd wall 4a). Without bending the base end) so that the corners are raised, the lid piece 2 (lid portion 7) is curved into a quarter arc corresponding to the shape of the upper edge of the first walls 3a, 3b. Although the round type container which closes the upper end opening of the part 1 was demonstrated, it is not limited to this, The lid piece 2 is made into other curved shape, for example, the both corners in the upper end of the 1st walls 3a and 3b are divided into four. 1, that is, a configuration in which the upper ends of the first walls 3 a and 3 b are formed in a semicircular shape (an arc having an inner angle of about 180 °), and the lid piece 2 (the lid portion 7 ) In a semicircular arc shape corresponding to the shape of the upper edge of the first walls 3a, 3b to close the opening of the body 1 It may be a container of Dotaipu.
[0078]
Further, as shown in FIG. 5, each of the first walls 3a, 3b and the second walls 4a, 4b is formed in a square shape or a rectangular shape, a bent ruled line is formed at the base end of the lid piece 2, and the lid piece The connecting part of 2 and the 2nd wall 4a may be bent so that a corner may stand, and the container formed in the cube shape or a rectangular parallelepiped shape may be sufficient. That is, in the state where the insertion piece 5 is inserted into the insertion slit 6, the configuration in which the engaging means for engaging the body 1 and the lid piece 2 with each other on the distal end side of the insertion piece 5 in the lid piece 2 is provided. When the opening of the trunk portion 1 is closed, the lid piece 2 or the connecting portion between the lid piece 2 and the trunk portion 1 is bent, and elastic force or bending stress (residual stress) is generated in the bent portion. It is suitable for a container in which the closed state of the opening of the body portion 1 by the lid body 2 may be released by the elastic force or the like.
[0079]
In the above embodiment, only the upper end opening, which is one end opening of the body portion 1, is closed with the lid piece 2 having the above-described configuration. You may make it close by the structure similar to the cover piece 2 of embodiment. In this case, the container can be configured such that the cylindrical body portion 1 is in a lying state and has openings at both side ends so that the opening can be opened and closed on the lid piece 2.
[0080]
In the above embodiment, the lid piece 2 is cut to form the insertion piece 5 having a convex shape from the distal end side to the proximal end side of the lid piece 2. However, the present invention is not limited to this. 5 may be formed by attaching a piece formed from a sheet provided separately to the lid piece 2 so as to project from the distal end side to the proximal end side.
[0081]
In the above-described embodiment, the container is formed from a single plastic sheet formed in a predetermined shape. However, the present invention is not limited to this. For example, the container may be formed from a paper sheet. However, the structure provided with the engaging means (the engaging piece 11 and the engaging slit 12) for engaging the body 1 and the lid piece 2 forms the container from a resin sheet such as strong elastic polypropylene. It is suitable for the case.
[0082]
【The invention's effect】
As described above, according to the container according to the present invention, a cylindrical body part formed from a sheet and having both ends opened, and a lid piece extending from the opening edge of the body part to the base end, The lid piece is configured to be able to close the opening by being bent toward the opening side, and an insertion piece formed in a convex shape from the distal end side to the proximal end side of the lid piece. In the container having an insertion slit for inserting the insertion piece of the lid piece closing the opening of the trunk portion in the peripheral wall, the trunk portion and the lid piece are inserted in the distal end portion. In the state where the insertion piece is inserted into the slit, the engagement means that engages with each other on the tip side from the insertion piece of the lid piece is provided. It is possible to reliably maintain the closed state of the opening.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a container according to an embodiment of the present invention.
FIG. 2 is a perspective view of the container according to the embodiment in a state where a lid piece, a bottom piece, and a folding flap are opened.
FIG. 3 is a plan view of a plastic sheet (sheet) forming the container according to the embodiment.
FIG. 4 is a partial cross-sectional view showing a state in which the upper end opening of the trunk portion is closed with the lid piece of the container according to the embodiment, wherein FIG. (B) shows the state in which the bent portion is returned to its original position and the inserted piece is in a posture along the second wall, and (c) shows the engaged state of the engaging piece. The state at the time of fitting (inserting) into a slit is shown, (D) shows the state which the engagement piece was inserted in the engagement slit and the lid piece and the trunk | drum were engaged with each other.
FIG. 5 is an overall perspective view of a container according to another embodiment of the present invention.
FIG. 6 is an overall perspective view of a conventional container.
FIG. 7 is a partial cross-sectional view of a conventional container, showing a state where an insertion piece provided on a lid piece is inserted into an insertion slit provided on a trunk portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Body part, 2 ... Cover piece, 3a, 3b ... 1st wall (peripheral wall), 4a, 4b ... 2nd wall (peripheral wall), 5 ... Insertion piece, 6 ... Insertion slit, 7 ... Cover part, 8 ... Fold Bending part, 11 ... engaging piece (engaging means), 12 ... engaging slit (engaging means), 13 ... single piece, 14 ... bottom piece, 15 ... folding flap, 17 ... bottom part, 18 ... bent part, 30 ... Body forming portion, 31 ... lid forming portion, 32 ... bottom forming portion, 33 ... flap forming portion, 34a, 34b, 34c ... first region, 35a, 35b ... second region, 31a ... lid region, 31b ... bent Area, 32a ... Bottom area, 32b ... Bending area

Claims (1)

A cylindrical body part formed from a plastic sheet and having both ends opened, and a lid piece extending from the opening edge of the body part to the base end,
The lid piece is configured to be able to close the opening by being bent in a curved shape toward the opening side without bending the vicinity of the base end so as to form a corner, and the base piece from the distal end side of the lid piece. It has an insertion piece formed in a convex shape toward the end side at the tip part,
The barrel part is a container having an insertion slit in the peripheral wall into which the insertion piece of the lid piece closing the opening of the trunk part is inserted,
The body portion and the lid piece are provided with engagement means that engage with each other on the distal end side of the insertion piece of the lid piece, with the insertion piece inserted into the insertion slit ,
The engagement means includes an arcuate engagement piece provided at the tip of the lid piece, and an arcuate engagement slit provided in the body part so that the engagement piece can be inserted,
The engagement piece is provided so as to be inclined with respect to the peripheral wall of the trunk portion in a state of being inserted into the engagement slit,
The engagement slit is a piece having a circular arc shape in substantially the same direction facing the engagement piece in a state where the front end portion of the lid piece closing the opening of the body portion is opposed to the peripheral wall of the body portion. A container characterized by being formed by being cut into the peripheral wall of the body portion so as to form .

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