JP2022082265A - container - Google Patents

Abstract

To prevent a locking member from falling off a first side wall.SOLUTION: In a folding container 10 of the present disclosure, an engaging protrusion 47 protruding from an upper surface is provided on a lock member 40, and an engaging receiving portion 18 corresponding to the engaging protrusion 47 of the lock member 40 is formed on a short-side side wall 11. When the lock member 40 is placed in a restricted position, the engaging protrusion 47 of the lock member 40 is received by the engaging receiving portion 18 of the short-side side wall 11. At this time, an outer side surface of the engaging protrusion 47 abuts on an outer inner side surface of the engaging receiving portion 18, and the engaging protrusion 47 is restricted from going outward.SELECTED DRAWING: Figure 8

Description

The present disclosure relates to a container in which the first side wall portion becomes removable or rotatable when the lock member is pushed down from the restricted position to the released position.

Conventionally, as a container of this type, a lock member provided with an annular operation portion is known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-96401 (paragraph [0024], FIG. 1, etc.)

In the above-mentioned conventional container, it is required to prevent the lock member from falling off from the first side wall portion when the annular operation portion of the lock member is lifted by hand.

The invention of claim 1 made to achieve the above object is that the lock member provided on the outer surface or the inner surface of the first side wall portion, which is at least a part of one side wall of the container, is pushed down from the restricted position to the released position. In a container in which the first side wall portion can be removed or rotated and the annular operation portion of the lock member can be lifted by hand, the first side wall portion is provided on one of the first side wall portion and the lock member. When the engaging protrusion portion protruding in the first direction intersecting the inside and outside directions, the first side wall portion and the locking member are provided on the other side, and the locking member moves from the unlocking position to the restricted position. It is a container having an engagement receiving portion that receives the engaging protrusion and restricts the movement of the engaging protrusion in the inward and outward directions.

The invention of claim 2 is the container according to claim 1, wherein the engaging protrusion and the engaging receiving portion are arranged directly above the annular operation portion.

According to the third aspect of the present invention, the engagement receiving portion is the angle between the first constituent wall extending in the first direction and the second constituent wall extending in the inner and outer directions on the other side of the first side wall portion and the lock member. The container according to claim 1 or 2, which is formed in a portion.

According to a fourth aspect of the present invention, the engaging protrusions project upward continuously or substantially continuously from the end portion of the upper surface of the lock member on the side of the first side wall portion. The container according to any one claim.

The invention according to claim 5 is the container according to any one of claims 1 to 4, wherein the lock member is provided with a handle portion on both the upper portion and the lower portion of the annular operation portion. be.

In the invention of claim 1, when the lock member is arranged at the restricted position, the engaging receiving portion receives the engaging protrusion and restricts the movement of the engaging protrusion in the inward and outward directions. Even if the container is lifted by touching the annular operation portion of the lock member, the movement of the lock member in the inward and outward directions is restricted by the engagement between the engagement protrusion and the engagement receiving portion, so that the first side wall of the lock member is restricted. Can be prevented from falling out.

In the invention of claim 2, since the engagement protrusion and the engagement receiving portion are arranged directly above the annular operation portion, when the container is lifted by putting a hand on the annular operation portion, it engages with the engagement protrusion. The engagement with the receiving part is deepened.

In the invention of claim 3, since the engagement receiving portion is arranged at the corner portion of the first constituent wall and the second constituent wall, it is more than the case where it is arranged at the central portion of the first constituent wall or the second constituent wall. However, thinning of the peripheral portion of the engagement receiving portion is prevented, and the strength is increased.

In the invention of claim 4, since the engaging protrusion extends continuously or substantially continuously from the end portion of the upper surface on the first side wall side, the strength of the engaging protrusion is improved.

In the invention of claim 5, since the handle portion is provided at two positions, the upper part and the lower part of the lock member, it is possible to select the position to handle the hand according to the situation, so that the handleability of the container is improved. improves.

Perspective view of the folding container according to the present disclosure Perspective view of the folded container in the folded state Perspective view of the short side wall Perspective view of lock member Back perspective view of lock member Perspective view of the short side wall Perspective view of the short side wall Side sectional view around the short side wall Back perspective of the short side wall Side sectional view around the short side wall Side sectional view around the short side wall according to the modified example

Hereinafter, the folding container 10 (corresponding to the “container” in the claims) of the present disclosure will be described with reference to FIGS. 1 to 10. As shown in FIG. 1, the folding container 10 has a rectangular parallelepiped structure having a rectangular planar shape and an open upper surface. Further, the folding container 10 has a pair of short side walls 11 rotatably connected to the bottom wall 30 and a pair of outer edges on the short side side of the bottom wall 30 (Claims). It has a "one side wall" (corresponding to a "first side wall portion") and a pair of long side side walls 21 rotatably connected to a pair of long side outer edges of the bottom wall 30. There is. Then, in the folding container 10, the short side wall 11s and the long side side walls 11 and 21 are erected from the bottom wall 30 and connected to each other (see FIG. 1), and the short side side wall 11 is overlapped on the bottom wall 30. After being folded in this way, it can be changed to a folded state (see FIG. 2) in which the long side side wall 21 is folded over the short side side wall 11.

The bottom wall 30 includes a frame-shaped protrusion 31 that rises stepwise from the outer edge so that the planar shape becomes larger. The frame-shaped protrusion 31 is formed from a pair of short side bottom protrusions 32 protruding from a pair of short sides of the bottom wall 30, a long side bottom protrusion 33 protruding from a pair of long sides, and a corner portion of the bottom wall 30. It has a protruding corner protrusion 34. Among these protrusions 32, 33, 34, the corner protrusion 34 is the highest, and the long side bottom protrusion 33 and the short side bottom protrusion 32 are lower in this order. Further, the portion of the bottom wall 30 below the frame-shaped protrusion 31 is a stepped fitting portion 35.

As shown in FIG. 2, a plurality of arm receiving portions 32A and 33A are formed in the short side bottom protrusion 32 and the long side bottom protrusion 33 at intervals in the longitudinal direction, respectively. The arm receiving portions 32A and 33A are open to the upper surface and the inner surface of the short side bottom protrusion 32 and the long side bottom protrusion 33. The upper surface openings 32B and 33B of the arm receiving portions 32A and 33A are wider than the inner surface openings 32C and 33C. Stop portions 32D and 33D are formed. Further, on the lower surfaces of the short side bottom protrusion 32 and the long side bottom protrusion 33, handle portions 32K and 33K that are depressed upward are formed in the central portion in the longitudinal direction, respectively.

As shown in FIGS. 1 and 2, a plurality of hinge legs 14 and 24 corresponding to the arm receiving portions 32A and 33A are hung from the lower ends of the short side side wall 11 and the long side side wall 21. A pair of hinge shafts project from both side surfaces in the lateral direction of the long side wall 21 at the lower ends of the hinge legs 14 and 24. Note that FIG. 3 shows the hinge shaft 14A of the hinge leg portion 14 of the short side side wall 11. The hinge legs 14 and 24 including the hinge shaft are received from the upper surface openings 32B and 33B by the arm receiving portions 32A and 33A of the bottom wall 30, and the hinge shaft is locked to the retaining portions 32D and 33D to be prevented from coming off. ing. The short side side wall 11 and the long side side wall 21 rotate with respect to the bottom wall 30 about the hinge axis, and are in an upright state (state shown in FIG. 1) and a horizontal state (state shown in FIG. 2). Can be changed.

As shown in FIG. 1, the long side side wall 21 has an upper end protrusion 22 protruding outward at the upper end of a horizontally long flat plate, and a lower end rib 23 protruding outward at the lower end. A pair of connecting protrusions 25 protruding toward the short side wall 11 side are formed on both side edges of the long side side wall 21. The connecting protrusion 25 is arranged at an end portion in the longitudinal direction of the long side side wall 21 and a position near the end portion, and has an outer wall surface 25A and an inner side wall 25B extending toward the short side side wall 11 side. The outer side wall 25A projects toward the short side side wall 11 from the inner side wall 25B, and faces the side edge portion of the short side side wall 11 from the outside. From the center of the inner side wall 25B in the vertical direction, the engaging wall 25C is formed so as to project toward the short side side wall 11. A through hole 25D is formed at the upper end of the portion of the outer side wall 25A that protrudes from the inner side wall 25B. Further, the pair of connecting protrusions 25 of the long side wall surface 21 project upward from the portion between them.

As shown in FIG. 3, the short side side wall 11 has an upper end rib 12 and a lower end rib 13 protruding outward at the upper end and the lower end of the horizontally long flat plate 11A. On both side edges of the short side wall 11, a protrusion 15 is formed at the upper end portion, which projects laterally and overlaps the outer wall 25A of the connecting protrusion 25 of the long side side wall 21 from the inside. When the folding container 10 is assembled, the protrusion 15A is formed with an engaging protrusion 15A that is received by the through hole 25D of the connecting protrusion 25 of the long side wall surface 21 so as to project outward. ing.

As shown in FIG. 3, a lock member 40 is assembled between the upper end rib 12 and the lower end rib 13 on the outer surface of the short side side wall 11. The lock member 40 extends over the entire lateral direction of the short side wall 11. Specifically, as shown in FIGS. 4 and 5, in the lock member 40, the rib 42 protrudes rearward from the front plate 41 as a whole, and the first component portion 43 having a substantially rectangular shape in front view and the first component portion 43 and the first component portion 43. 1 It has a trapezoidal second component 44 extending laterally from both side edges of the component 43, and a strip-shaped third component 45 extending laterally from the second component 44. ing. The upper surfaces of the first to third components 43 to 45 are substantially flush with each other. Further, the lower surface of the first component 43 is arranged at the lowest position, the lower surface of the second component 44 extends upward from the end of the first component 43, and the lower surface of the third component 45 extends upward. , Extends horizontally from the end of the second component 44.

As shown in FIG. 3, the short side wall 11 is provided with a regulation wall 16 that overlaps the third component 45 of the lock member 40 from the front and prevents the lock member 40 from coming off. Further, a slide groove 43M extending in the vertical direction is formed at the left end portion (left end portion in FIG. 3) and the position near the right end portion of the first constituent portion 43 of the lock member 40, and the short side side wall 11 is formed. A guide protrusion 11G (see FIG. 6) received by the slide groove 43M is formed so as to project outward. As a result, the lock member 40 can slide in the vertical direction without shifting in the lateral direction. Further, as shown in FIG. 3, a tapered portion 45T is formed on the outer surface side of the upper end portion in a portion of the third constituent portion 45 of the lock member 40 that protrudes laterally from the regulation wall 16.

As shown in FIGS. 3 and 6, on both side edges of the short side wall 11, a U-shaped regulatory receiving portion 17 open upward is formed in the central portion in the vertical direction. The lower end of the movable range of the lock member 40 (hereinafter referred to as "release position") is defined by the third component 45 coming into contact with the bottom 17A of the regulation receiving portion 17. Further, the position where the upper surface of the lock member 40 abuts on the upper end rib 12 of the short side wall 11 is the upper end of the movable range of the lock member 40 (hereinafter referred to as “regulated position”).

As shown in FIG. 3, a pair of flexible arms 46 extend diagonally downward from the lower surface of the lock member 40 so as to approach each other. The lower end of the flexible arm 46 abuts on the lower end rib 13 of the short side wall 11, and the lock member 40 is urged upward by the elastic force of the flexible arm 46. When the lock member 40 is positioned at the regulated position due to the urging, most of the third component 45 is arranged above the regulated receiving portion 17.

When a pair of long side side walls 21 are erected from the folded state (see FIG. 2) and the short side side wall 11 is erected, the tapered portion 45T (see FIG. 3) of the third component 45 of the lock member 40 is erected on the short side. The lock member 40 slides in contact with the engaging wall 25C (see FIG. 1) of the side wall 11 and moves downward against the elastic force of the flexible arm 46. Then, when the third component 45 of the lock member 40 passes through the engaging wall 25C of the short side side wall 11, the lock member 40 moves to the upper end position due to the elastic force of the flexible arm 46, and the third component 45 Is sandwiched and engaged with the outer wall 25A and the engaging wall 25C at the connecting protrusion 25 of the short side side wall 11. As a result, the short side side wall 11 and the long side side wall 21 are fixed to each other in an upright state.

In order to tilt the short side side wall 11 inward from the assembled state (see FIG. 1), the lock member 40 is pressed downward against the elastic force of the flexible arm 46. Then, the lock member 40 is arranged at the release position, the third component 45 is received by the regulation receiving unit 17 (see FIG. 7), the engagement with the engagement wall 25C (see FIG. 1) is released, and the short The side wall 11 can be rotated.

By the way, the lock member 40 is provided with an annular operation portion 50 in order to perform an operation of disengaging (pressing operation downward). As shown in FIG. 3, the annular operation portion 50 is composed of an opening edge portion of an operation hole 51 formed through the center of the lock member 40 in the longitudinal direction. The operation hole 51 has a rectangular shape with the long side in the longitudinal direction of the lock member 40, and is arranged between the position closer to the upper end and the position closer to the lower end of the first component 43 of the lock member 40. The annular operation unit 50 has an annular rib 52 projecting rearward from the opening edge of the operation hole 51. As shown in FIGS. 5 and 8, the lower side portion of the annular operation portion 50 includes the lower side of the annular rib 52, the front plate 41, and the rib 42 (referred to as the lower side rib 42A) protruding from the lower edge of the lock member 40. , The cross-sectional shape is a "U" shape that opens backward. Further, the upper side portion of the annular rib 52 is common to the rib 42 (referred to as the upper side rib 42B) protruding from the upper edge of the lock member 40.

Further, the front plate 41 of the lock member 40 is provided with a hanging portion 41A protruding downward from the upper side rib 42B, and the upper side rib 42B and the hanging portion 41A constitute a handle portion 40T. It is possible to lift the folding container 10 by putting a hand on the handle portion 40T.

Here, as shown in FIGS. 4 and 5, the lock member 40 of the present embodiment is provided with an engaging protrusion 47 protruding from the upper surface (upper surface of the upper rib 42B). The engaging protrusion 47 is arranged at the inner end portion (short side side wall 11 main body (flat plate 11A) side end portion) in the inner / outer direction in the lateral center of the lock member 40. As shown in FIGS. 5 and 8, the planar shape of the engaging protrusion 47 has a trapezoidal shape in which the inner side in the inner and outer directions is longer than the outer side, and the inner side surface of the engaging protrusion 47 is an upper rib. It is flush with the inner end face of 42B. That is, the engaging protrusion 47 continuously protrudes upward from the end on the short side side wall 11 side of the upper surface of the lock member 40.

As shown in FIGS. 8 and 9, an engagement receiving portion 18 is formed on the short side side wall 11 at a position corresponding to the engaging protrusion 47 of the lock member 40. The engagement receiving portion 18 has a shape in which a corner portion between the short side side wall 11 main body (flat plate 11A) and the upper end rib 12 is cut out, and the upper surface notch portion 12K and the short side side wall 11 main body provided on the upper end rib 12 are formed. The side notch portion 11K provided in the above is continuous. The upper surface notch 12K has a trapezoidal shape corresponding to the planar shape of the engaging protrusion 47, and the side surface notch 11K has a rectangular shape having a height slightly larger than the plate thickness of the upper end rib 12. .. The main body of the short side wall 11 (flat plate 11A) corresponds to the "first constituent wall" in the claims, and the upper end rib 12 corresponds to the "second constituent wall" in the claims.

As shown in FIG. 10, when the lock member 40 is arranged at the release position, the engagement protrusion 47 of the lock member 40 is disengaged from the engagement receiving portion 18 of the short side wall surface 11. At this time, the entire inner side surface of the engaging protrusion 47 and the inner end surface of the lower side rib 42A are in contact with the main body of the short side side wall 11.

Then, as shown in FIG. 8, when the lock member 40 is arranged at the restricted position, the engagement protrusion 47 of the lock member 40 is received by the engagement receiving portion 18 of the short side wall surface 11. At this time, it is restricted that the outer side surface of the engaging protrusion 47 abuts on the outer inner side surface of the engaging receiving portion 18 and the engaging protrusion 47 faces outward, that is, the lock member 40 faces outward. Will be done.

The configuration of the folding container 10 of the present embodiment is as described above. Next, the action and effect of the folding container 10 will be described. As described above, in the folded container 10 in the assembled state, by pushing the annular operation portion 50 of the lock member 40 arranged on the short side side wall 11 downward, the lock member 40 and the long side side wall 21 are engaged with each other. It is released, and the short side side wall 11 can be tilted inward.

The folded container 10 in the assembled state can lift the folded container 10 by putting a hand on the handle portion 40T (upper side portion of the annular operation portion 50) provided on the lock member 40 of the short side side wall 11. be. Here, when the folding container 10 is lifted by putting a hand on the handle portion 40T of the lock member 40, a load is applied to the lock member 40 so as to face outward, and the lock member 40 is disengaged from the short side side wall 11. Is a concern.

On the other hand, in the folding container 10 of the present embodiment, when the lock member 40 is arranged at the restricted position, the engaging protrusion 47 of the locking member 40 is connected to the engaging receiving portion 18 of the short side wall 11. Since it is accepted and the locking member 40 is restricted from going outward, it is possible to prevent the locking member 40 from coming off the short side side wall 11.

Moreover, the engagement protrusion 47 and the engagement receiving portion 18 are arranged directly above the handle portion 40T (upper side portion of the annular operation portion 50) of the lock member 40, and the engagement protrusion 47 is the engagement receiving portion 18. When the folding container 10 is lifted by putting a hand on the handle portion 40T of the lock member 40, a load is applied to the lock member 40 toward the upper end rib 12 side of the short side wall 11. The engagement between the abutment portion 47 and the engagement receiving portion 18 is deepened, and the lock member 40 is more difficult to disengage from the short side side wall 11.

Further, since the engagement receiving portion 18 is arranged at the corner portion between the short side side wall 11 main body (flat plate 11A) and the upper end rib 12, the engagement receiving portion 18 is more than the case where it is arranged at the central portion of the upper end rib 12. The thinning of the wall 18 is prevented, and the strength of the engagement receiving portion 18 is increased.

Corresponding to the engagement receiving portion 18, the engaging protrusion 47 is arranged at the side end portion of the short side side wall 11 main body (flat plate 11A) of the lock member 40, and is located on the short side side wall 11 side of the upper surface of the lock member 40. Since the engaging protrusion 47 continuously protrudes upward from the end portion, the strength of the engaging protrusion 47 becomes stronger than when the engaging protrusion 47 is arranged at the center of the upper surface of the lock member 40 in the inner and outer directions.

Further, for example, when the annular operation portion 50 of the lock member 40 is pressed downward to rotate the short side side wall 11, the lock member 40 is tilted inward (the lower end portion of the lock member 40 is outward). When a load is applied (toward), there is a concern that the lock member 40 may come off from the lower end side. On the other hand, in the folding container 10, the inner side surface of the flushing engaging protrusion 47 and the inner end surface of the lower rib 42A abut on the short side wall 11 main body (flat plate 11A), that is, engaged. Since the range of contact with the short side wall 11 main body is longer in the vertical direction than when there is no protrusion 47 or when the engaging protrusion 47 is arranged on the outside in the inner and outer directions, the lock member 40 is less likely to tilt inward. Therefore, it is possible to prevent the lock member 40 from coming off from the lower end side.

[Other embodiments]
(1) In the above embodiment, the short side side wall 11 is rotatable with respect to the bottom wall 30, but the short side side wall 11 may be removable, or the short side side wall 11 may be a door. It may be configured to rotate with respect to the long side side wall 21 as described above. Further, the short side wall 11 may be a side wall portion with a door member provided with a base side wall and a door member, and the door member may be configured to rotate with respect to the base side wall.

(2) The short side wall 11 may be provided with a handle hole that overlaps with the operation hole 51 of the lock member 40 in the inner and outer directions.

(3) The lock member 40 may be arranged on the inner surface side of the short side side wall 11.

(4) As shown in FIG. 11, a handle portion 40T may be provided on the lower surface of the lock member 40 as well. In this case, since it is possible to select the position to hold the hand according to the situation, the handleability of the folding container 10 is improved. In this case, it is preferable to provide an engagement protrusion and an engagement receiving portion also in the vicinity of the lower handle portion 40T (for example, the corresponding portion between the lower side portion of the annular rib 52 and the short side side wall 11).

(5) An engagement receiving portion may be formed on the upper rib 42B of the lock member 40, and the engaging protrusion may be formed so as to protrude downward from the upper end rib 12 of the short side wall 11. Further, the engaging protrusion may be configured to protrude in the left-right direction and enter the engaging receiving portion in the left-right direction.

(6) In the above embodiment, the engagement receiving portion 18 has a structure in which the upper surface notch portion 12K and the side surface notch portion 11K are continuous, but the upper surface notch portion 11K is not provided and the upper surface notch portion is not provided. It may be composed of only 12K. In this case, even when the lock member 40 is arranged at the restricted position, the inner side surface of the engaging protrusion 47 and the inner end surface of the lower side rib 42A abut on the short side side wall 11 main body (flat plate 11A), so that the folding container When the 10 is lifted, the lock member 40 is restricted from rotating outward, and the lock member 40 is further prevented from coming off the short side side wall 11.

Although specific examples of the techniques included in the claims are disclosed in the present specification and the drawings, the techniques described in the claims are not limited to these specific examples, and are specific. It includes various modifications and changes of the examples, and also includes those obtained by extracting a part of the specific examples independently.

10 Folding container (container)
11 Short side wall (first side wall)
18 Engagement receiving part 40 Lock member 40T Handle part 42B Upper side rib 47 Engagement protrusion 50 Circular operation part

Claims (5)

When the lock member provided on the outer surface or the inner surface of the first side wall portion, which is at least a part of one side wall of the container, is pushed down from the restricted position to the release position, the first side wall portion can be removed or rotated, and the first side wall portion can be removed and rotated. In a container that can be lifted by hand on the annular operation portion of the lock member
An engaging protrusion provided on one of the first side wall portion and the lock member and protruding in the first direction intersecting the inside and outside directions,
Provided on the other side of the first side wall portion and the lock member, when the lock member moves from the release position to the restricted position, the engaging protrusion is received and the engaging protrusion is formed. A container with an engagement receiving part, which regulates movement in the inward and outward directions. The container according to claim 1, wherein the engaging protrusion and the engaging receiving portion are arranged directly above the annular operation portion. The engagement receiving portion is formed at a corner portion of the other of the first side wall portion and the lock member, that is, the first constituent wall extending in the first direction and the second constituent wall extending in the inner and outer directions. Item 2. The container according to item 1 or 2. The aspect according to any one of claims 1 to 3, wherein the engaging protrusion protrudes upward continuously or substantially continuously from the end portion of the upper surface of the lock member on the side of the first side wall portion. The listed container. The container according to claim 1, wherein the lock member is provided with a handle portion on both the upper portion and the lower portion of the annular operation portion.

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