JP2009202930A - Prefabricated synthetic resin container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prefabricated synthetic resin container which prevents fingers from being stuck inside the container when being transported and has a finger hooking part formed so as to be surely gripped. <P>SOLUTION: The container consists of a plane square bottom plate and four side plates bendably connected with the bottom plate along its side end edge. The finger hooking parts are provided for at least a pair of the side plates which are opposed to each other in the synthetic resin container wherein each side plate can be folded toward its opposed side plate. The finger hooking part is characterized in that a rectangular through-hole is provided in the inner board inside the side plate, and a finger hooking rib of a size to be smaller than the height of the through-hole is provided in a manner such that the finger hooking rib is protruding downward from the outer edge end of a horizontal reinforcing rib protruding from and along the upper end edge of the through-hole. The height of the through-hole is preferably sized not to allow the fingers to be stuck in the through-hole. A vertical reinforcing rib across the through-hole may be formed in the finger hooking part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, a side plate is disposed on a bottom plate via a bent portion or a rotation shaft, and the side plate is easily assembled from a state in which the side plate is folded on the bottom plate, and can be easily folded from the assembled state. More particularly, the present invention relates to an assembly-type synthetic resin container provided with a finger hook portion that prevents damage to the contents by preventing insertion of a finger.

  Conventionally, a side plate is erected on the four sides of a bottom plate having a square planar shape via a hinge part or a rotary shaft part, and the side plates are assembled by engaging edges of the side plates. An assembly-type synthetic resin container that is folded inward by releasing the combined state is used. Synthetic resin containers are excellent in durability and can be used repeatedly, and are frequently used in place of cardboard boxes from the viewpoint of resource saving that has been raised in recent years.

  Examples of such containers include containers disclosed in Japanese Patent Application Laid-Open Nos. 2005-82157 and 2004-75079. The structure of such a general assembly-type synthetic resin container will be described with reference to the explanatory drawings shown in FIG.

  The assembling-type synthetic resin container 10 includes a planar rectangular base plate 11, and side plates 13 and 14 on the short side facing each other, and side plates 15 and 16 on the long side facing each other along the edge of the bottom plate 11. Four side plates are provided. The side plates 13, 14 and the side plates 15, 16 are pivotally attached by pivot shafts 17, 18 provided at the end edges of the bottom plate 11, respectively.

Also, in this container, the side plates 13 and 14 on the short side are first folded inward, and the side plates 15 and 16 on the long side are folded back later, but the side plates 15 and 16 that are folded back are folded substantially horizontally. Therefore, the pivot shafts of the side plates 15 and 16 to be folded later are disposed on a height adjusting portion 19 projecting from the bottom plate 11.

  As shown in FIG. 6, projecting portions 15a and 16a projecting inward so as to be orthogonal to the side plates are provided at both end portions of the long side side plates 15 and 16 that are folded later. The outer surfaces of both end portions of the side plates 13 and 14 on the short side are joined to the inner surfaces of the projecting portions 15a and 16a, thereby preventing the side plates 13 and 14 from rotating outward and being assembled by a lock portion (not shown). Is securely held. A protrusion 20 is provided at the upper end of the corners of the side plates 15 and 16 on the long side. The protrusion 20 is fitted to a recess 21 provided at a corner of the bottom plate of the upper container, thereby preventing displacement when the containers are stacked.

  Further, gripping holes 22 and 23 are provided in the upper portions of the side plates 13 and 14 on the short side and the side plates 15 and 16 on the long side. The gripping holes 22 and 23 are through-holes for inserting a hand and gripping the upper edge when carrying the container, and are formed large so that the hand can be easily inserted.

If the height dimension of the side plates 15 and 16 is less than or equal to half the width dimension of the bottom plate 11 (dimension in the direction in which the side plates 15 and 16 are assembled), the folded side plates 15 and 16 do not overlap. . However, if the height of the side plates 15 and 16 is set to be half or more of the width dimension of the bottom plate 11 so that the depth of the container is increased, the upper end portions of the opposing side plates 15 and 16 are overlapped with each other. The folded side plate is inclined upward (see FIG. 7). When the side plate is inclined upward, the height from the top surface of the side plate 15 that has been tilted first to the upper end corner of the inclined side plate 16 is increased, and the height of the folded container as a whole is increased. It increases and transportation efficiency falls.
JP 2005-82157 A Japanese Patent Laid-Open No. 2004-75079

  When the side holes are provided with the gripping holes 22 and 23, there is a possibility that the stored items hit the gripping holes 22 and 23 depending on the stored items such as vegetables and fruits, and the gripping holes 22 are transported when the container is transported. , 23, there is a possibility that the inserted finger hits the stored item and damages the stored item.

  In order to horizontally assemble the side plates that are to be tilted later in a container in which the height of the side plates 15 and 16 is at least half the width of the bottom plate 11, the thickness of the opposing side plates in the overlapping range is set. One half should be sufficient. However, if the conventional gripping hole 23 is formed, the gripping hole 23 is formed in a portion where the thickness is reduced, and the strength of the side plate is further reduced due to the reduction in thickness. However, when the containers are stacked, the side plates may be deformed and the stacking may be lost.

  Therefore, the gripping hole 23 may be omitted to form a smooth surface. However, when the container is transported, there is a risk of slipping and dropping the container because the finger is not caught only by hooking the rib formed on the outside. Further, when the side plate is pulled up from the folded state, the gripping hole 23 is used as a finger locking portion. If there is no gripping hole 23 that can be used as a finger locking portion, the side plate cannot be pulled up smoothly, and there is a problem that the efficiency of the assembly work is poor.

  The present invention has been made in view of the present situation, and it is intended to provide an assembly-type synthetic resin container in which a finger hook is formed so that a finger can be securely gripped without being inserted into the inside during transportation. It is. In addition, the present invention provides a finger hook portion that is capable of suppressing a decrease in strength as much as possible and forming a finger when pulling up the side plate, even though the overlapping portion is formed in a half thickness when the side plate is folded. It is intended to provide an assembly type synthetic resin container formed with the above.

  In order to achieve the above object, the present invention has the following configuration. That is, the assembly type synthetic resin container according to the present invention comprises a flat rectangular bottom plate and four side plates connected to bendable along side edges of the bottom plate, and the side plates are opposed to each other. In the synthetic resin container capable of folding the side plate to the inside, at least a pair of side plates facing each other is provided with a finger hook portion, and the finger hook portion has a rectangular through hole on the inner surface plate which is the inner side of the side plate. It is characterized in that a finger hook rib having a dimension smaller than the height dimension of the through-hole is projected downward at the outer edge of the horizontal reinforcing rib projecting along the upper end edge of the through-hole. The height dimension of the through hole is preferably a dimension that cannot be inserted with a finger, and can be 3 to 15 mm in height. In addition, by forming a vertical reinforcing rib across the through hole in the finger hanging portion, the inner surface plate of the finger hanging portion in which the through hole is formed can be reinforced.

  Further, the synthetic resin container is formed such that at least a pair of side plates opposed to each other has a height at which the upper end overlaps when folded, and when the overlapping portion is the overlapping portion, the finger hook portion is adjacent to the overlapping portion. Can be provided. The overlapping portion is formed on the outer surface of the side plate that is the lower side when folded, by forming a concave surface on the outer surface of the side plate that is half of the side plate, and on the inner surface of the side plate that is the upper side when folded. By forming the concave surface, it is possible to obtain an upper overlapped portion having a thickness half that of the side plate.

As is apparent from the above description, in the present invention, in the formation of the finger hook portion, the through hole formed in the inner surface plate is smaller than the conventional gripping hole and is a through hole that cannot insert a finger from the outside. There is no damage even if the stored item hits. Moreover, since a finger is not inserted also in the case of transportation, it does not hit a stored item and is not damaged. Moreover, when carrying, since it can hold | maintain reliably, without slipping down by hooking a finger on a finger hook rib, it can carry safely.
Furthermore, in the case of a synthetic resin container in which the side plates overlap when folded, if the overlapping portion is the overlapping portion, the overlapping portion can be folded in a horizontal state by setting the thickness to one half. Further, since the finger hook portion is formed not adjacent to the overlap portion but in the overlap portion, the decrease in the strength of the side plate can be minimized. Further, since the finger hook portion is formed so that the finger cannot be inserted, the stored item is not damaged by the finger hitting. Further, when the side plate is pulled up from the folded state, it can be smoothly pulled up by putting a finger on the finger hooking rib, and the assembling work can be performed efficiently.

  Hereinafter, an embodiment illustrating an assembly type synthetic resin container according to the present invention will be described. The assembly type synthetic resin container according to the present invention is formed in the same manner except for the container and the finger hook described in the conventional example shown in FIG. Therefore, the same reference numerals are used for explanation. That is, the four side plates of the pair of long side side plates 15 and 16 facing the pair of short side side plates 13 and 14 disposed at the edge of the rectangular bottom plate 11 are the rotation shaft 17. , 18 are pivotally attached to each other.

  When folding, the side plates 13 and 14 are first folded inward first, and the side plates 15 and 16 are folded later. The rotating shafts 18 of the side plates 15 and 16 are disposed on a height adjusting portion 19 protruding from the bottom plate 11. Protruding portions 15a and 16a projecting inward so as to be engaged with the side plates on the short side are provided at both end portions of the side plates 15 and 16 on the long side that are folded later. Protrusions 20 for preventing slippage are provided on the upper surfaces of the corners of the side plates 15 and 16, and a recess 21 is formed on the bottom surface of the bottom plate 11 to fit the protrusions 20 of the lower container.

  Next, the structure of the finger hook part which is a feature of the present invention will be described. 1 and 2 are enlarged partial cross-sectional views of the finger hook portion according to the present invention, and correspond to partial cross-sectional views taken along the gripping hole 23 of FIG. 1 is a sectional side view, and FIG. 2 is a sectional perspective view. The finger hook portion 30 of this embodiment corresponds to the conventional gripping hole 23. As shown in FIG. 6, the side plate of an ordinary assembly-type synthetic resin container has a predetermined thickness by providing reinforcing ribs vertically and horizontally on the outer surface. The finger hook portion 30 is formed by using the reinforcing rib.

  On the side plates 15 and 16 where the finger hooks 30 are formed, horizontal reinforcing ribs 31 and 32 are provided at predetermined height positions as in the case of forming a conventional gripping hole. The finger hook portion 30 is provided with a rectangular through hole 35 in the inner surface plate 33 of the side plates 15 and 16 in contact with the horizontal reinforcing rib 31, and the horizontal reinforcing rib 31 provided along the upper edge of the through hole 35. It is formed by projecting a finger hook rib 36 downward at the outer edge.

  A height dimension h of the finger hook rib 36 is smaller than a height dimension h1 of the through hole 35. The higher the height of the finger hook rib 36, the more advantageous for hooking the finger, but if it is too high, it will bite into the finger and hurt when it is carried. On the other hand, if the finger hook rib 36 is too high, the finger hook rib 36 is formed by pulling the mold inward during molding, so that the height dimension of the through hole 35 also increases.

  When the height dimension h1 of the through-hole 35 is increased, the stored item hits and is damaged, and there is a risk that a finger may be inserted during transportation. Therefore, it is desirable that the height dimension h1 of the through hole 35 is a height at which a finger is not inserted, and the height dimension h of the finger hook rib 36 is sufficiently high to hook the finger. For example, the height dimension h1 of the through hole 35 can be 4 to 15 mm, and the height dimension h of the finger hook rib 36 can be 3 to 14 mm.

  The lower surface of the finger hook rib 36 is preferably formed in a rounded surface. Further, the horizontal reinforcing rib 31 and the horizontal reinforcing rib 32 are not particularly limited as long as there is an interval for inserting a hand. The finger hook 30 may be provided on at least the pair of side plates 15 and 16 facing each other, but may be provided on the other side plates 13 and 14.

  Further, since there is an interval corresponding to the protruding dimension of the horizontal reinforcing rib 31 in the horizontal direction between the inner surface plate 33 and the finger hanging rib 36, the finger is inserted inside the finger hanging rib 36 when transporting. be able to. In addition, when the side plates 15 and 16 are folded horizontally, the finger hook ribs 36 protrude horizontally, so that the fingers can be engaged with the finger hook ribs 36 and pulled up.

  Next, another embodiment shown in FIGS. 3 to 5 will be described. This embodiment relates to the shape of the side plate and the formation position of the finger hook portion when the opposing side plates overlap when folded. That is, in FIG. 6, when folded, the upper ends of the side plates 15 and 16 overlap, and as shown in FIG. 7, the problem that the side plates folded later are not horizontal is solved.

  A range (height) that overlaps when the side plates 15 and 16 are folded is a range indicated by hatching in FIG. Since the protrusions 20 are provided at the upper ends of the corners of the side plates 15 and 16, the portion that actually overlaps when overlapped is that the protrusion 20 of the opposite side plate enters the inside, and the range indicated by the oblique lines is the overlapping portion 37. Therefore, one of the features of the present invention is that the overlapping portion 37 portion which is symmetrical with the upper end side is formed on the upper side plates 15 and 16 on the long side side to be half the thickness of the side plates 15 and 16. In addition, the finger hook portion 30 </ b> A is provided adjacent to the overlapping portion 37.

  Next, the overlapping portion 37 and the finger hook portion 30A will be described in detail with reference to FIGS. Of the side plates 15 and 16, when the folded side plate is the lower side plate 15a and the folded side plate is the upper side plate 16a, the overlapping portion 37 is concave on the outer surface of the lower side plate 15a. 40 is formed by the overlapping portion 41 having a thickness halved and the overlapping portion 44 having a thickness halved by forming the concave surface 43 on the inner surface of the upper side plate 16a. .

  The concave surface 40 is formed on the outer surface of the lower side plate 15a so as to have the shape of the overlapping portion indicated by the oblique lines in FIG. 3 in accordance with the shape of the upper end edge of the upper side plate 16a. On the other hand, the concave surface 43 is formed on the inner surface of the upper side plate 16a in the same manner as the concave surface 40 in accordance with the shape of the upper end edge of the lower side plate 15a. Therefore, when the lower side plate 15a and the upper side plate 16a are folded, the overlapping portion 44 of the upper side plate 16a is fitted into the concave surface 40 of the lower side plate 15a, and the overlapping portion 41 of the lower side plate 15a is brought into the concave surface 43 of the upper side plate 16a. As a result, the lower side plate 15a and the upper side plate 16a overlap horizontally.

  When folded, the side plates 15a and 16a can be folded compactly by overlapping horizontally, saving storage space and increasing transport efficiency. Further, the portion of the side plates 15a, 16a whose thickness is halved can be set to the minimum overlapping range, so that the strength of the side plates is not lowered and deformation is small even when stacked. It can be stacked in a stable state.

  Next, the finger hook portion 30A will be described. The finger hook portion 30A is formed adjacent to the overlapping portions 41 and 44. The finger hook portion 30A is basically the same as the finger hook portion 30, but differs in that a vertical reinforcing rib 45 is provided between the horizontal reinforcing ribs 31a and 32a forming the finger hook portion 30A. .

  That is, the finger hook portion 30A is provided with a rectangular through hole 35a on the inner surface plate 33a of the side plates 15a and 16a in contact with the horizontal reinforcing rib 31a, and the horizontal reinforcing rib 31a provided along the upper edge of the through hole 35a. It is formed by projecting a finger-hooking rib 36a downward at the outer edge end of the.

  The vertical reinforcing rib 45 connects the horizontal reinforcing ribs 31a and 32a and is provided in the vertical direction across the through hole 35a. A notch 45a is formed at the upper end of the vertical reinforcing rib 45 to facilitate insertion of a finger, and two or more vertical reinforcing ribs 45 can be provided at an appropriate interval. By providing the vertical reinforcing rib 45, it is possible to reinforce the inner surface plate in the finger hook portion 30A in which the through hole 35a is formed.

  Since the finger hook portions 30 and 30A having the above-described configuration are formed, the container can be securely held and transported safely, and the side plates 15 and 16 folded by engaging the finger hook ribs 36 with the fingers can be used. Since it can be pulled up easily, assembly can be performed smoothly. Moreover, since the through holes 35 and 35a provided in the inner surface plate 33 are formed in such a size that the finger cannot be inserted, there is no possibility that the stored item is damaged by the finger.

It is the expanded side view which cut the principal part of the finger hook part which showed embodiment of this invention. It is the expansion perspective view which cut the important section of the finger hook part in an embodiment similarly. It is a front view for description which shows the part which overlaps when the side plate of a long side is folded. FIG. 4A is a cross-sectional perspective view showing the main part of the side plate that is the lower side when overlapped, and FIG. 4B is a cross-sectional side view. Fig.5 (a) is a cross-sectional perspective view which shows the principal part of the side plate which becomes an upper side when it overlaps, FIG.5 (b) is a cross-sectional side view similarly. It is a perspective view of the conventional assembly-type synthetic resin container. It is a front view of the state which overlapped when the side plate of the long side was folded and the upper side plate became diagonal.

Explanation of symbols

13, 14: Short side plate 15, 16: Long side plate 15a: Lower side plate 16a: Upper side plate 30: Finger hook portion 31, 32: Horizontal reinforcing rib 33: Inner plate 35: Through hole 36: Finger Hanging rib 37: overlapping portion 40: concave surface 41: overlapping portion 43: concave surface 44: overlapping portion 45: vertical reinforcing rib

Claims (6)

  In a synthetic resin container comprising a planar rectangular bottom plate and four side plates connected to bendable along side edges of the bottom plate, each side plate being capable of folding the opposite side plate inward. The finger hook portion is provided on at least a pair of side plates opposed to each other, and the finger hook portion is provided with a rectangular through hole on the inner surface plate which is the inner side of the side plate, and protrudes along the upper edge of the through hole. An assembly-type synthetic resin container characterized in that a finger hook rib having a size smaller than the height of the through-hole is projected downward at the outer edge of the horizontal reinforcing rib.   The assembly type synthetic resin container according to claim 1, wherein the height of the through hole is a dimension in which a finger cannot be inserted.   2. The assembly type synthetic resin container according to claim 1, wherein a height of the through hole is a dimension in which a finger cannot be inserted and a height of 4 to 15 mm.   The assembly type synthetic resin container according to any one of claims 1 to 3, wherein a vertical reinforcing rib is formed across the through hole in the finger hook portion.   The synthetic resin container is formed at a height where the upper end portions overlap when at least a pair of opposing side plates are folded, and when the overlapping portion is an overlapping portion, the finger hook portion is provided adjacent to the overlapping portion. The assembly-type synthetic resin container according to any one of claims 1 to 4, wherein the container is made of synthetic resin.   The overlapping portion is formed by forming a concave surface on the outer surface of the side plate that is the lower side when folded, and a concave portion on the inner surface of the side plate that is the upper side when folded. 6. The assembly type synthetic resin container according to claim 5, further comprising an upper overlapping portion having a thickness half of that of the side plate.

Images