JP3677344B2 - Folding container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a so-called folding container that can be folded and assembled for transporting, transporting or storing various articles.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a folding container is known in which one opposing side wall is divided in the vertical direction and connected with an appropriate hinge member so that the other opposing side wall can be lifted up.
[0003]
[Problems to be solved by the invention]
In the conventional folding container described above, when a force is applied from the outside to the side wall (hereinafter simply referred to as “the side wall”) of the assembled folding container, the side wall of the folding container is turned to the inside of the folding container. There is a problem that it moves and the contents are damaged.
[0004]
In addition, when a large number of folding containers are stacked in the vertical direction, so-called stacking state, when the flip-up side wall of the folding container rotates to the inside of the folding container, the flip-up side wall is in an original vertical state from the outside. It is difficult to return the folding container to the upper side, and the above-mentioned pivoting side wall no longer bears the load of the folding container loaded above, so that the folding container with the pivoting side wall is buckled and damaged. Or, even if it is not damaged, there is a problem that the folding container with the flipped-up side wall is deformed and the stacked folding containers are collapsed.
[0005]
The objective of this invention is providing the folding container which improved the assembly and folding workability | operativity while solving the subject which the conventional folding container mentioned above has.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention firstly forms an accommodation recess composed of a horizontal groove and a vertical groove extending downward from both ends of the horizontal groove on the outer wall of the raised side wall. A through hole is formed in the lower end portion of the vertical groove constituting the storage recess, and the storage recess includes a horizontal frame, a vertical frame extending downward from the vicinity of both ends of the horizontal frame, and the vertical frame. An engagement member formed of an engagement piece formed at a lower end portion is accommodated in the vertical groove in which the vertical frame forms the storage recess, and the engagement piece forms a vertical groove in the storage recess. Between the upper surface of the horizontal frame forming the engaging member and the upper surface of the horizontal groove forming the storage recess. A spring member for urging the engaging member downward is mounted, and the engagement member urged downward is applied. When the engagement piece of the member is inserted into the engagement recess formed in the bottom and the engagement member is lifted against the downward biasing force of the spring member, the engagement member is engaged. The combination piece is configured to be disengaged from the engagement recess formed in the bottom , and secondly, the hand portion of the automatic machine for assembling or folding the folding container is inserted into the engagement member. Possible depressions are formed .
[0007]
FIG. 1 is a perspective view of a folding container as an example, FIG. 2 is a perspective view in the middle of folding the folding container, FIG. 3 is a perspective view of the folding container in a folded state, and FIG. 3 is a side view of the folding container. FIG. 4, which is an enlarged perspective view including a partial cutout of the locking mechanism of the folding container, FIG. 5 and FIG. 6 which is a vertical sectional view taken along the line II in FIG. As will be described, the present invention is not limited to this embodiment as long as the gist of the present invention is not exceeded.
[0008]
【Example】
First, folding and assembling of the folding container and the folding container will be described with reference to FIGS.
[0009]
The folding container C is formed in a box shape having an upper portion made up of an upper frame 1, side walls 2 and bottom portions 3 arranged on four side surfaces, and the side walls 2 have grooves or grooves arranged on the upper frame 1. Relatively arranged side walls 2a and 2b (hereinafter simply referred to as “splashing side walls”) that can rotate around a support shaft inserted into the hole, and the other oppositely arranged upper and lower sides It is composed of divided side walls 2c and 2d (hereinafter simply referred to as “divided side walls”). The divided side walls 2c and 2d have upper side walls 2c 'and 2d' and lower side walls 2c "and 2d", respectively, and the upper side walls 2c 'and 2d' and the lower side walls 2c "and 2d" Are connected by an appropriate number of hinges 4. Further, the upper side walls 2c 'and 2d' of the divided side walls 2c and 2d are configured to be rotatable about a spindle inserted into a groove or hole provided in the upper frame 1, and the lower side wall 2c ″ and 2d ″ are pivotally attached to the bottom 3 by a suitable connecting member 5.
[0010]
As shown in FIG. 2, the folding container C described above is formed from the assembled state shown in FIG. The upper side walls 2c ′ and 2d ′ and the lower side walls 2c ″ and 2d ″ constituting the divided side walls 2c and 2d are turned into upper and lower side walls 2c ′ and 2d ′, respectively. 2d ′ and the lower side walls 2c ″ and 2d ″ are configured to be folded as shown in FIG. 3 by being bent with the hinge 4 as an axis so as to overlap each other.
[0011]
Next, the lock mechanism H that prevents the flip-up side walls 2a and 2b of the assembled folding container C from rotating inside the folding container C will be described. Since the lock mechanisms H provided on the opposing splash side walls 2a and 2b have the same structure, the lock mechanism H provided on one of the flip side walls 2a will be described below. To do.
[0012]
Reference numeral 6 denotes a storage recess formed in the lower portion of the substantially central portion of the outer wall of the flip-up side wall 2a and including a horizontal groove 6a and a vertical groove 6b extending downward from both ends of the horizontal groove 6a. From the lower end of 6b, a through hole 6c reaching the lower end of the flip-up side wall 2a is formed.
[0013]
Reference numeral 7 denotes an engaging member that can be moved up and down and is accommodated in an accommodating recess 6 formed on the outer wall of the splash side wall 2a. The engaging member 7 includes a horizontal frame 7a that extends in the horizontal direction and both ends of the horizontal frame 7a A pair of vertical frames 7b extending downward from the vicinity of the portion, and the lower end portion of the vertical frame 7b is formed in the lower end portion of the vertical groove 6b of the storage recess 6 formed in the outer wall of the flip-up side wall 2a. An engaging piece 7c that can be inserted into the through-hole 6c is suspended integrally. Reference numeral 7d denotes an elastic piece that functions as a spring member and extends upward in an inverted C shape from the upper surface of the horizontal frame 7a. Instead of the elastic piece 7d, an appropriate spring member such as a coil spring or a spring plate can be mounted in the gap between the upper surface of the horizontal frame 7a and the upper surface 6a 'of the horizontal groove 6a.
[0014]
The engaging member 7 is housed in a housing recess 6 formed on the outer wall of the flip-up side wall 2a, and an engaging piece 7c suspended from the vertical frame 7b of the engaging member 7 is formed in the flip-up side wall 2a. It is inserted into the through hole 6c. Further, the tip of the elastic piece 7d formed on the upper surface of the engaging member 7 comes into contact with the upper surface 6a ′ of the horizontal groove 6a of the housing recess 6, and the engaging member 7 is attached downward by the elasticity of the elastic piece 7d. It is configured to force.
[0015]
As shown in FIG. 6 (a), the engagement piece 7c of the engagement member 7 biased downward by the elastic piece 7d has a tip portion of a predetermined amount from the lower end portion of the flip-up side wall 2a. , Is configured to protrude. 6B, when the engagement member 7 is lifted upward against the elastic force of the elastic piece 7d, the tip of the engagement piece 7c of the engagement member 7 The part is configured to be accommodated in a through-hole 6c formed in the flip-up side wall 2a. The lower surface 7b ′ of the vertical frame 7b of the engaging member 7 is in contact with the bottom surface 6b ′ of the vertical groove 6b of the storage recess 6, and the downward movement of the engaging member 7 biased downward by the elastic piece 7d is performed. Restricted.
[0016]
The outer wall of the vertical frame 7b of the engaging member 7 is preferably formed with a recess 7e made of a through hole or a groove. By forming such a hollow portion 7e, when the folding container C is assembled or folded using an automatic machine such as a robot, the hand portion of the automatic machine is inserted into the hollow portion 7e. The engagement member 7 can be moved up and down by moving the hand part up and down.
[0017]
At the edge of the bottom 3 of the folding container C where the flip-up side wall 2a is located, a pair of grooves or through holes into which the lower end of the engaging piece 7c suspended from the vertical frame 7b of the engaging member 7 is inserted. An engaging recess 8 is formed. 3a is an edge of the bottom 3 to prevent the vertical side wall 2a shown in FIG. 1 from pivoting so that the vertical side wall 2a does not pivot further from the vertical state. This is a vertical rib formed upward from the top.
[0018]
Next, the operation of the lock mechanism H having the above-described structure will be described.
[0019]
When the folded container C in the folded state shown in FIG. 3 is assembled as shown in FIG. 1, it is moved downward by the elastic piece 7d housed in the housing recess 6 formed in the outer wall of the flip-up side wall 2a. The engaging piece 7 c of the engaging member 7 that is biased to the end is inserted into the engaging recess 8 formed at the edge of the bottom 3. Therefore, even if a force is applied to the splashing side wall 2a from the outside, the splashing side wall 2a does not rotate inside the folding container C. Since the engaging member 7 is always urged downward by the elastic piece 7d, the distal end portion of the engaging piece 7c is automatically moved when the positions of the engaging piece 7c and the engaging recess 8 coincide. Then, the flip-up side wall 2 a is locked with respect to the bottom 3 by being inserted into the engaging recess 8.
[0020]
When the folded container C in the assembled state shown in FIG. 1 is folded as shown in FIG. 3, the elastic force of the elastic piece 7d as shown in FIG. 6 (b). Against this, the engaging member 7 is lifted upward to remove the tip of the engaging piece 7c of the engaging member 7 from the engaging recess 8 formed at the edge of the bottom 3, and the raised side wall 2a is 2, after being pushed from the outside and rotated in a substantially horizontal state around a support shaft inserted into a groove or hole provided in the upper frame 1 as shown in FIG. 2, the upper side wall 2c ′ 2d ′ and the lower side walls 2c ″, 2d ″ are folded with the split side walls 2c, 2d bent about the hinge 4 so as to overlap each other.
[0021]
In the embodiment described above, the number of the engagement pieces 7c of the engagement member 7 is two, but the number can be one, or three or more. In this case, the number of through-holes 6c formed in the splash-up side wall 2a and the number of engaging recesses 8 formed in the bottom 3 are increased or decreased as appropriate according to the number of engaging pieces 7c of the engaging member 7. Let Moreover, the engagement piece 7c of the engagement member 7 can also be formed in one plate shape. In this case, it replaces with the through-hole 6c drilled in the raising side wall 2a, it is set as the slit which can insert the plate-shaped engagement piece 7c, and the engagement recessed part 8 formed in the bottom part 3 is also engaged. An elongated groove or slit is formed so that the tip of the piece 7c can be inserted.
[0022]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0023]
Even if a force is applied to the flip-up side wall of the assembled folding container from the outside, the flip-up side wall can be prevented from rotating inside the folding container with a simple structure.
[0024]
Since the recessed portion into which the hand portion of the automatic machine for assembling or folding the folding container can be inserted is formed in the engaging member, the assembly of the folding container or the automation of the folding work can be handled.
[0025]
Since the engaging member is urged downward, the engaging member can be prevented from inadvertently moving upward, and the flip-up side wall is automatically locked to the bottom when the folding container is assembled. can do.
[Brief description of the drawings]
FIG. 1 is a perspective view of a folding container as an example.
FIG. 2 is a perspective view of the folding container in the middle of folding.
FIG. 3 is a perspective view of the folding container in a folded state.
FIG. 4 is a side view of the folding container.
FIG. 5 is an enlarged perspective view including a partially cutout of the locking mechanism of the folding container.
6 is a vertical sectional view taken along the line II of FIG.
[Explanation of symbols]
C ... Folding container H ... Lock mechanism 2a, 2b ... Raised side wall 6 ... Storage recess 7 ...・ Engagement member

Claims (2)

A storage recess composed of a horizontal groove and a vertical groove extending downward from both ends of the horizontal groove is formed on the outer wall of the flip-up side wall, and a through hole is formed at the lower end of the vertical groove constituting the storage recess. And an engaging member comprising a horizontal frame, a vertical frame extending downward from the vicinity of both ends of the horizontal frame, and an engaging piece formed at the lower end of the vertical frame, A vertical frame is stored in a vertical groove that forms the storage recess, and the engagement piece is stored so as to be inserted into a through hole formed in a lower end of the vertical groove that forms the storage recess. Furthermore, a spring member for urging the engaging member downward is mounted between the upper surface of the horizontal frame constituting the engaging member and the upper surface of the horizontal groove constituting the housing recess. The engaging piece of the engaging member biased downward is inserted into the engaging recess formed in the bottom. When the engagement member is lifted against the downward biasing force of the spring member, the engagement piece of the engagement member is disengaged from the engagement recess formed in the bottom portion. Folding container characterized by being made . The folding container according to claim 1, wherein the engaging member is formed with a recessed portion into which a hand portion of an automatic machine for assembling or folding the folding container can be inserted.

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