JP5091759B2 - Folding container - Google Patents

Description

  The present invention relates to a folding container that can be folded so that a side wall disposed so as to surround the bottom portion overlaps the bottom portion.

  Conventionally, a long side wall connected via a hinge member to the opposite long side portion of the bottom portion, which has a substantially rectangular planar shape, and a corresponding short side portion of the bottom portion are connected via a hinge member. It is assembled into a box shape by standing the long side wall and the short side wall substantially perpendicular to the bottom part, and when folded, the long side wall and the short side wall overlap with the bottom part. Folding containers are known, and when assembled in a box shape, the long side wall or the short side wall is configured to be locked to each other by a locking member so as not to fall down toward the bottom. ing.

  The operation unit arranged on the short side wall is moved up and down, and the vertical movement of the operation unit is converted into horizontal movement through an appropriate mechanism such as a link mechanism, thereby moving the rod-like body horizontally, The body tip is inserted into or removed from the engaging portion formed on the long side wall, and the long side wall or the short side wall is locked to each other so as not to fall down toward the bottom, or As an example, a folding container that is unlocked is disclosed in Patent Document 1.

JP 2003-40263 A

  In the conventional folding container described above, since the mechanism for converting the vertical movement of the operation unit into the horizontal movement of the rod-like body is complicated, the lock member is easily damaged, and there is a problem in its reliability and durability. there were.

  Further, in the conventional folding container described above, since the mechanism for converting the vertical movement of the operation unit into the horizontal movement of the rod-like body is complicated, it takes a lot of skill and time to assemble the lock member into the folding container. As a result, there has been a problem that the workability of assembling the folding container is deteriorated.

  Furthermore, since the mechanism for converting the vertical movement of the operation unit into the horizontal movement of the rod-like body is complicated, there are many parts that constitute the lock member, and the work time for assembling the lock member to the folding container is long. At the same time, there is a problem that the parts management cost increases.

  Furthermore, in order to convert the vertical movement of the operation unit into the horizontal movement of the rod-shaped body through a complicated mechanism, the transmission loss for converting the vertical movement of the operation unit into the horizontal movement of the rod-shaped body is large. There is a problem that a large force is required for the vertical movement of the operation unit and that the lock cannot be quickly released.

  An object of the present invention is to solve the problems of the above-described conventional folding container.

  In order to achieve the above-described object, the present invention provides one opposing side wall that is first set up in a substantially vertical state from the folded state and the other side wall that is set up in a vertical direction after the side wall. In the folding container having a side wall, in the lock member mounting space formed on the side wall standing from the rear, one operation unit is arranged so as to face the plate-like part of the side wall standing from the rear, After that, by inserting the lock bar in the horizontal direction from the opposite side end rib side of the side wall standing from the rear, and engaging the lock bar with the operation unit, the operation unit and the lock A lock member composed of a bar is attached to the side wall that is stood from the rear, and the lock bar is moved downward by the downward movement of the operation unit, so that the lock bar and the side wall that stand up first Those configured to release the engagement between the formed locking hook.

  Standing from the rear in a folded container having one opposing side wall standing upright substantially vertically from the folded state and the other side wall standing upright next to the side wall after the side wall. In the lock member mounting space formed on the side wall, one operation portion is arranged so as to face the plate-like portion of the side wall that is raised from the rear side, and then the opposite side ends of the side wall that is raised from the rear side. From each rib side, a lock bar is inserted in the horizontal direction, and the lock bar is engaged with the operation portion, whereby the lock member composed of the operation portion and the lock bar can be stood from the rear. Attached to the side wall, the lock bar is moved downward by the downward movement of the operation portion, and the engagement between the lock bar and the locking hook formed on the side wall standing on the tip is released. As a result, the lowering of the operating portion and the lowering of the lock bar are performed directly without going through the conversion mechanism, so that the structure of the lock member is simplified and failure of the lock member can be reduced. In addition, the reliability and durability of the lock member are improved.

  In addition, one operation part is arranged so as to face the plate-like part of the side wall that is stood up later, and then the lock bar is horizontally moved from the opposite side end rib side of the side wall that is stood up later. By inserting and engaging the lock bar with the operation part, the lock member made up of the operation part and the lock bar is attached to the side wall that can be stood later, so that the lock member can be assembled to the folding container. Since the work can be performed without requiring skill or time, the workability of the assembly work of the folding container is improved.

  Furthermore, the number of parts constituting the lock member is three in total, that is, one operation portion and a pair of lock bars, and the number of components is smaller than that of the conventional lock member. Therefore, the lock member folding container Assembling time is shortened, and the part management cost can be reduced.

  Furthermore, since the lock bar is directly moved by the downward movement of the operation unit, a large force is not required for the downward movement of the operation unit. Can do.

  Hereinafter, examples of the present invention will be described. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

  As shown in FIGS. 1 and 2, the folding container according to the present invention has a bottom 1, a long side wall 2 hinged to a long side bank portion 1 a opposed to the bottom 1, and a bottom 1 facing each other. It is comprised from the short side wall 3 hingedly connected to the short side bank part 1b, and in the present Example, the height of the long side bank part 1a is comprised higher than the height of the short side bank part 1b. ing.

  From the state assembled in the box shape shown in FIG. 1, first, the short side wall 3 is brought down so as to overlap the bottom 1 as shown in FIG. 2, and then the long side wall 2 is As is well known, the folding container can be folded into a compact and low-profile by falling so as to overlap the short side wall 3 stacked on the bottom 1, and thus folded. From the state, the long side wall 2 is set up substantially vertically, and then the short side wall 3 is set up substantially vertical, so that it can be assembled into a box shape as shown in FIG.

  Next, the long side wall 2 is demonstrated using FIG.2 and FIG.3.

  The long side wall 2 has a horizontally-long substantially rectangular plate-like portion 2a, and both vertical ends of the long side wall 2 are substantially perpendicular to the plate-like portion 2a and the inner surface (folded) of the plate-like portion 2a. When the container is assembled into a box shape, a vertically long long side wall side engaging member 2b is formed with respect to a surface 2a1 which is located inside the folding container assembled into a box shape.

  The upper end block portion 2b1 formed at the upper end of the vertically long strip-shaped plate portion 2b ′ forming the long side wall side engaging member 2b is formed in a vertical plate shape substantially parallel to the plate portion 2a from the tip of the upper end block portion 2b1. The portion 2b2 is suspended, and a horizontal plate-like portion 2b3 that connects the lower end of the vertical plate-like portion 2b2 and the inner surface 2a1 of the plate-like portion 2a is formed at the lower end of the vertical plate-like portion 2b2. The upper end fitting of the long side wall engaging member 2b is surrounded by the lower surface of the upper end block 2b1, the vertical plate 2b2, the horizontal plate 2b3 and the inner surface 2a1 of the plate 2a. A joint hole 2c1 is formed.

  Further, a corner formed by the inner surface 2a1 of the plate-like portion 2a and the strip-like plate portion 2b 'of the long side wall-side engaging member 2b, which is located immediately below the horizontal plate-like portion 2b3 that forms the upper end fitting hole 2c1. Is formed with a substantially L-shaped locking hook 2d having a lower side and an open side, comprising a horizontal plate-like portion 2d1 and a vertical plate-like portion 2d2 extending downward from the tip of the horizontal plate-like portion 2d1. Has been.

  Furthermore, an upper horizontal plate-like portion 2e1, a lower horizontal plate-like portion 2e2, and an upper portion are formed at the corner formed by the inner surface 2a1 of the plate-like portion 2a and the strip-like plate portion 2b 'of the long side wall side engaging member 2b. A substantially U-shaped frame portion 2e composed of a horizontal plate-like portion 2e1 and a connecting vertical plate-like portion 2e3 that connects the tips of the lower horizontal plate-like portion 2e2 is formed. By forming the frame portion 2e, a fitting hole surrounded by the substantially U-shaped frame portion 2e and the inner surface 2a1 of the plate-like portion 2a is formed in the long side wall side engaging member 2b. Such a fitting hole is formed in the middle and near the lower end of the long side wall side engaging member 2b, and the fitting hole formed in the middle of the long side wall side engaging member 2b is arranged in the center. The fitting hole formed near the lower end of the long side wall-side engaging member 2b is referred to as a lower fitting hole and denoted by reference numeral 2c3. Such a fitting hole can be formed by only one or three or more.

  Next, the short side wall 3 is demonstrated using FIG.1, FIG4 and FIG.5.

  The short side wall 3 has a substantially rectangular plate-like portion 3a, and an upper surface of the plate-like portion 3a has an outer surface (the outer side of the folding container when the folding container is assembled into a box shape). The upper end horizontal rib 3b and the lower end horizontal rib 3c extending in a direction substantially perpendicular to the 3a1 are formed, and both end portions of the upper end horizontal rib 3b and both end portions of the lower end horizontal rib 3c are formed. Are connected by a side end rib 3d.

  The short side wall 3 is formed with a vertically long short side wall engaging member 3e by extending the upper region or the whole of the plate-like portion 3a beyond the side end rib 3d to the outside.

  The short side wall engaging member 3e has a vertically long strip-shaped plate portion 3e ', and a substantially horizontal upper end fitting piece 3f is formed near the upper end of the outer wall surface 3d1 of the side end rib 3d. In addition, an upper horizontal piece 3g is formed immediately below the upper end fitting piece 3f. A slit 3f1 is formed between the upper end fitting piece 3f and the outer wall surface 3d1 of the side end rib 3d. The upper end fitting piece 3f is configured to be inserted into an upper end fitting hole 2c1 formed in the long side wall side engaging member 2b of the long side wall 2 when the folding container is assembled in a box shape. ing.

  Further, an upper horizontal plate-like portion 3h1 and a lower horizontal plate-like portion 3h2 are formed at corners formed by the strip-like plate portion 3e ′ constituting the short side wall side engaging member 3e and the outer wall surface 3d1 of the side end rib 3d. And a fitting portion 3h composed of a connecting vertical plate portion 3h3 that connects the tips of the upper horizontal plate portion 3h1 and the lower horizontal plate portion 3h2, and the upper horizontal plate portion 3h1 and the side end rib 3d. A slit 3h4 is formed between the outer wall surface 3d1 and between the lower horizontal plate-like portion 3h2 and the outer wall surface 3d1 of the side end rib 3d. Such a fitting portion corresponds to the middle portion fitting hole 2c2 and the lower fitting hole 2c3 formed in the long side wall engaging member 2b, and the middle and lower end portions of the short side wall engaging member 3e. It is formed in the vicinity. The fitting portion formed in the middle of the short side wall side engaging member 3e is referred to as a central portion fitting portion, is denoted by reference numeral 3h ', and is formed near the lower end of the short side wall side engaging member 3e. The fitted portion is referred to as a lower fitting portion, and is denoted by 3h ″.

  When the folding container is assembled into a box shape, the center part fitting portion 3h ′ is inserted into the center part fitting hole 2c2 formed in the long side wall side engaging member 2b of the long side wall 2, and the lower part The fitting portion 3h ″ is configured to be inserted into the lower fitting hole 2c3 formed in the long side wall side engaging member 2b of the long side wall 2.

  Further, a lower horizontal piece 3i similar to the upper horizontal piece 3g is formed directly above the center fitting portion 3h ', and the tip of the upper horizontal piece 3g and the tip of the lower horizontal piece 3i are a vertical plate. The vertical plate-like portion 3j is formed with a concave portion 3k. Reference numeral 3m denotes an auxiliary fitting portion formed by bulging outward the side end rib 3d located near the lower fitting portion 3h ″. The upper horizontal plate-like portion 3m1 and the lower horizontal plate 3m2, and a connecting vertical plate 3m3 connecting the tips of the upper horizontal plate 3m1 and the lower horizontal plate 3m2.The auxiliary fitting 3m is shown in FIG. Thus, when the long side wall 2 stands substantially vertically, the fitting recess formed between the long side bank portion 1a of the bottom portion 1 and the lower end of the long side wall side engaging member 2b of the long side wall 2 A1 is configured to be fitted.

  Next, with reference to FIG. 5 which is a further enlarged view of FIG. 4, the lock member mounting space A <b> 2 formed on the short side wall 3 to which a lock member described later is mounted will be described.

  Immediately below the upper end horizontal rib 3b, an upper end horizontal rib 3n that connects opposite side end ribs 3d similar to the upper end horizontal rib 3b is formed, and below the upper end horizontal rib 3n, similarly, Upper horizontal ribs 3p that connect the opposite side end ribs 3d are formed.

  The side end rib 3d located between the upper end horizontal rib 3n and the upper horizontal rib 3p is provided with a vertically long slot 3d2 having such a height that a lock bar of a lock member described later can move up and down. ing. Further, in the vicinity of the side end rib 3d, the upper end horizontal rib 3n and the upper horizontal rib 3p are connected, and a side end rib side vertical rib 3q connected to the outer surface 3a1 of the short side wall 3 is formed. The end rib-side vertical rib 3q is also provided with a vertically long slot 3q1 having such a height that a lock bar of a lock member described later can move up and down.

  Further, near the center of the short side wall 3 of the side end rib side vertical rib 3q, the upper end horizontal rib 3n and the upper horizontal rib 3p are connected, and the central vertical rib connected to the outer surface 3a1 of the short side wall 3 is connected. 3r is formed, and a vertically long slot 3r1 having a height such that a lock bar of a lock member, which will be described later, can move up and down is also formed in the central vertical rib 3r.

  Further, an upper end horizontal rib 3n and an upper horizontal rib 3p are connected to a central portion of the short side wall 3 of the central vertical rib 3r adjacent to the central vertical rib 3r, and an outer surface 3a1 of the short side wall 3 is connected. A vertical guide rib 3s having a gap 3s1 into which a lock bar of a lock member to be described later can be inserted is formed therebetween.

  Furthermore, the vertical portion suspended from the upper end horizontal rib 3n is positioned on the outer surface 3a1 of the short side wall 3 located between the opposing vertical guide ribs 3s and between the upper end horizontal rib 3n and the upper horizontal rib 3p. An elastic piece mounting portion 3t on which a distal end portion of an elastic piece formed on a lock member, which will be described later, is mounted, which includes 3t1 and a horizontal portion 3t2 extending from the lower end of the vertical portion 3t1 toward the side end rib 3d. Are formed in a pair. The horizontal portion 3t2 of the pair of elastic piece placement portions 3t is formed to extend in the direction of the side end rib 3d from the lower end of the vertical portion 3t1 in a direction away from each other. In addition, 3u is a plate-like convex strip formed on the upper surface of the central portion of the upper horizontal rib 3p.

  A region surrounded by a pair of opposing side end ribs 3d, upper end horizontal ribs 3n, upper horizontal ribs 3p, and outer surfaces 3a1 of the short side walls 3 is a lock member mounting space A2 to which a lock member described later is mounted. .

  Next, the lock member H1 including the operation portion H1 'and the lock bar H1 "will be described with reference to FIGS.

  First, the operation unit H1 'will be described with reference to FIGS.

  The operation portion H1 ′ has a horizontally long plate-like base h1, and the central portion of the plate-like base h1 is placed on the surface of the plate-like base h1 (when the lock member H1 is attached to the short side wall 3, the outer side The surface is hung from the rear surface of the plate-like base h1 (the surface facing the outer surface 3a1 of the short side wall 3 when the lock member H1 is mounted on the short side wall 3) from the h1a. A box-shaped operation recess h2 into which a finger can be inserted is formed, and the operation recess h2 includes a side plate h2b, a top plate h2c, and a bottom plate h2d facing the back plate h2a. The bottom plate h2d is formed with a recess h2d 'into which a plate-like protrusion 3u formed on the upper surface of the central portion of the upper horizontal rib 3p of the short side wall 3 can be fitted.

  Lock bar accommodating portions h3 are formed at both ends of the back surface h1b of the plate-like base h1.

  The lock bar housing portion h3 includes a top plate h3a extending perpendicularly to the back surface h1b of the plate-like base portion h1 from the upper end side of the plate-like base portion h1, and a back surface h1b of the plate-like base portion h1 from the lower end side of the plate-like base portion h1. A bottom plate h3b extending perpendicularly to each other, and opposite side plates connecting both ends of the top plate h3a and both ends of the bottom plate h3b. The opposing side plates are a side plate (hereinafter referred to as an end portion side plate) h3c ′ formed along an end side of the plate-like base h1, and a side plate (hereinafter referred to as this side plate) located on the operation recess h2 side. The side plate is referred to as an operation recess side plate.) H3c ″.

  Further, the end side plate h3c ′ has a lock bar insertion recess h3d having an opening height T2 substantially the same as the height T1 of the lock bar H1 ″ by partially deleting the tip of the end side plate h3c ′. Further, guide portions h3e having the same gap as the opening height T2 of the lock bar insertion recess h3d are formed on the back surface of the top plate h3a and the top surface of the bottom plate h3b, respectively. One end is connected to the end side plate h3c ', and the other end is connected to the horizontal portion guide plate h3e1 extending in the direction of the operation recess h2, and the other end of the horizontal portion guide plate h3e1 to the top plate h3a or the bottom plate h3b. Note that the gap between the lock bar insertion recess h3d and the horizontal guide plate h3e1 of the guide portion h3e opposite to the lock bar insertion recess h3d is mutually viewed from the end side plate h3c ′. It is configured so as to overlap almost completely, as if it were formed as one recess, and the lock bar insertion recess h3d formed in the end side plate h3c ′ did not reach the plate-shaped base h1. The end side plate h3c ′ is configured to function as a locking side plate.

  Further, on the side surface on the operation recess h2 side of the operation recess side plate h3c ″ constituting the lock bar housing portion h3, the operation portion extending downward from the operation recess side plate h3c ″ toward the side plate h2b of the operation recess h2 An urging elastic piece h4 is formed. Reference numeral h5 denotes a horizontal rib for guiding a flat surface of a lock bar H1 "(to be described later) fitted in a gap between the lock portion insertion recess h3d and the horizontal portion guide plate h3e1 of the guide portion h3e facing the lock bar insertion recess h3d. It is formed on the outer surface 3a1 of the short side wall 3 located in h3.

  Next, the lock bar H1 ″ will be described with reference to FIG. 6, FIG. 9, and FIG.

  The lock bar H1 ″ has a horizontally long lock bar body h10. The lock bar body h10 has a horizontally long belt-like front wall h10a, an upper end horizontal rib h10b formed at the upper end of the front wall h10a, and a front wall. The lower end horizontal rib h10c formed at the lower end of h10a, and the vertical end side h10d connecting the upper end horizontal rib h10b and the vertical end of the horizontal lower end rib h10c.

  On one of the opposing vertical end sides h10d, a corrugated lock bar urging elastic member h11 bent in a wave shape is formed substantially perpendicular to the vertical end side h10d. On the other side of the side h10d, an inclined surface h12 that is inclined toward the vertical end side h10d is formed. Furthermore, on the front wall h10a located on the lock bar biasing elastic member h11 side, a pair of horizontal slit portions h13a substantially parallel to the upper end horizontal rib h10b and the lower end horizontal rib h10c, and an inclined surface h12 of the pair of horizontal slit portions h13a. A cantilevered elastic tongue h14 is formed by forming a substantially U-shaped slit h13 composed of a vertical slit 13b connecting the end portions on the side, and the free end of the elastic tongue h14 A locking projection h14a is provided so as to protrude outward from the front wall h10a. The lock bar urging elastic member h11 bent in a wave shape is pressed against the elastic force by pressing the front end of the lock bar urging elastic member h11 in the vertical end h10d direction. The length is configured to be shortened, and the length in the horizontal direction is expanded by the elastic restoring force when the pressure is released.

  Next, assembly of the lock member H1 to the short side wall 3 will be described with reference to FIGS.

  First, the end side plates h3c ′ forming the pair of lock bar accommodating portions h3 of the operation portion H1 ′ are positioned close to the opposing vertical guide ribs 3s formed in the lock member mounting space A2 of the short side wall 3. At the same time, the tip of the operation portion biasing elastic piece h4 formed on the operation portion H1 ′ is placed on the horizontal portion 3t2 of the elastic piece placement portion 3t formed on the short side wall 3, and The operation part H1 ′ of the lock member H1 is arranged in the lock member mounting space A2 of the short side wall 3 so that the operation part H1 ′ of the lock member H1 faces the plate-like part 3a of the short side wall 3. In this state, the upper surface of the operation portion H1 ′ of the lock member H1 and the upper end horizontal rib 3n of the short side wall 3 are configured to be in contact with or close to each other, and the lock member H1 A predetermined gap is formed between the lower surface of the operation portion H1 ′ and the upper horizontal rib 3p of the short side wall 3. In this state, the long hole 3d2 formed in the side end rib 3d of the short side wall 3, the long hole 3q1 formed in the side end rib side vertical rib 3q, and the central vertical rib of the short side wall 3 are provided. The long hole 3r1 drilled in 3r and the lock bar insertion recess h3d formed in the end side plate h3c ′ of the operation portion H1 ′ disposed in the lock member mounting space A2 of the short side wall 3 are side end ribs. When viewed from the 3d side, they are configured so as to overlap with each other almost completely, as if they are one tunnel.

  Next, by horizontally moving the lock bar H1 ″ from the side wall ribs 3d facing each other on the short side wall 3, the side bar ribs 3d of the short side wall 3 are sequentially moved starting from the lock bar biasing elastic member h11. A long hole 3d2, a long hole 3q1 formed in the side end rib side vertical rib 3q, a long hole 3r1 formed in the vertical rib 3r closer to the center of the short side wall 3, a gap 3s1 between the vertical guide ribs 3s, and It is inserted into the lock bar insertion recess h3d formed in the end side plate h3c ′ of the operation portion H1 ′ disposed in the lock member mounting space A2 of the short side wall 3. When inserting the lock bar H1 ″, The locking projection h14a of the elastic tongue h14 formed on the front wall h10a of the bar H1 ″ is arranged so as to face the plate-like base h1 of the operation unit H1 ′.

  As described above, the lock bar H1 ″, the lock hole biasing elastic member h11, and the long hole 3d2 formed in the side end rib 3d of the short side wall 3 and the side end rib side vertical rib are sequentially formed. A long hole 3q1 drilled in 3q, a long hole 3r1 drilled in the vertical rib 3r closer to the center of the short side wall 3, a gap 3s1 between the vertical guide ribs 3s, and a lock formed on the end side plate h3c ′ of the operation unit H1 ′. In the process of inserting into the bar insertion recess h3d, the tip of the lock bar urging elastic member h11 of the lock bar H1 ″ was inserted into the lock bar insertion recess h3d formed on the end side plate h3c ′ of the operation portion H1 ′. After that, it comes into contact with the operation recess side plate h3c ″ constituting the lock bar housing portion h3 of the operation portion H1 ′, and the tip of the lock bar urging elastic member h11 of the lock bar H1 ″ is connected to the operation portion H1 ′. No When the lock bar H1 "is further advanced after abutting on the operation recess side plate h3c" that constitutes the club housing part h3, the locking protrusion of the elastic tongue h14 formed on the front wall h10a of the lock bar H1 " The portion h14a abuts on the vertical tip surface h3d ′ of the lock bar insertion recess h3d formed on the end side plate h3c ′ of the operation portion H1 ′, and the free end of the elastic tongue h14 is the plate-like portion of the short side wall 3 When the elastic protrusion h14a is elastically deformed in the direction 3a and the locking protrusion h14a of the elastic tongue h14 exceeds the vertical front end face h3d ′ of the lock bar insertion recess h3d, the elastic tongue h14 is deformed by its elastic restoring force. Returning to the state, the locking protrusion h14a of the elastic tongue h14 is locked to the end portion side plate h3c ′ of the operation portion H1 ′ in which the lock bar insertion recess h3d is formed. A pair of lock bars H1 " It will be attached to the lock bar receiving portion h3 of work portion H1 '.

  When the pair of lock bars H1 ″ is attached to the lock bar housing part h3 of the operation part H1 ′, the lock bar body h10 of the lock bar H1 ″ is formed on the end side plate h3c ′ of the operation part H1 ′. The upper horizontal rib h10b of the lock bar main body h10 is fitted in the lock bar insertion recess h3d, and the pair of guide portions h3e formed vertically in the lock bar housing portion h3 of the operation portion H1 ′. Of these, the lower horizontal rib h10c of the lock bar main body h10 is located in contact with or close to the horizontal guide plate h3e1 of the upper guide portion h3e, and the lock bar housing portion h3 of the operation portion H1 ′ Further, in the vertical direction, the pair of guide portions h3e are configured to contact or approach the horizontal portion guide plate h3e1 of the guide portion h3e positioned below. Therefore, the lock bar H1 ″ can move in the horizontal direction so as to be sandwiched between the horizontal part guide plates h3e1 of the pair of guide parts h3e formed in the lock bar accommodating part h3 of the operation part H1 ′. It is configured as follows.

  As described above, the operation portion H1 ′ is disposed in the lock member mounting space A2 formed in the short side wall 3, and then the pair of lock bars H1 ″ are inserted into the lock bar housing portion h3 of the operation portion H1 ′. By wearing, the lock member H1 is assembled to the short side wall 3. In this way, even if the lock member H1 is assembled to the short side wall 3, As described above, the locking protrusion h14a of the elastic tongue h14 formed on the lock bar H1 ″ is locked to the end side plate h3c ′ of the operation portion H1 ′ where the lock bar insertion recess h3d is formed. Therefore, the lock bar H1 ″ is not easily pulled out from the operation unit H1 ′.

  Further, as described above, when the lock member H1 is assembled to the short side wall 3, the inclined surface h12 of the lock bar H1 "is located on the outer surface 3a1 side of the short side wall 3, and the lock bar main body h10. Is located in the recess 3k formed in the vertical plate-like portion 3j constituting the short side wall-side engaging member 3e formed in the short side wall 3, and the vertical portion on the inclined surface h12 side of the lock bar main body h10. The end side h10d is configured not to extend outward beyond the short side wall side engaging member 3e.

  When the lock member H1 is assembled to the short side wall 3, as described above, the upper surface of the operation portion H1 ′ and the upper end horizontal rib 3n of the short side wall 3 are positioned in contact with or close to each other. In addition, a predetermined gap is formed between the lower surface of the operation portion H1 ′ of the lock member H1 and the upper horizontal rib 3p of the short side wall 3 from this state. When the finger is put in the operation recess h2 of the operation portion H1 ′, the finger is pressed against the bottom plate h2d constituting the operation recess h2, and the operation portion H1 ′ is pushed down, the operation portion H1 ′ is formed on the short side wall 3. The operating portion biasing elastic piece h4 is elastically deformed in a substantially horizontal state while moving downward along the opposing vertical guide rib 3s. In addition, along with the downward movement of the operation portion H1 ′, the pair of lock bars H1 ″ attached to the operation portion H1 ′ also has a long hole 3d2 formed in the side end rib 3d of the short side wall 3 and side end ribs. It is configured to move downward along a long hole 3q1 formed in the side vertical rib 3q, a long hole 3r1 formed in the vertical rib 3r closer to the center of the short side wall 3, and a gap 3s1 between the vertical guide ribs 3s. .

  Further, when a load is applied to the lock bar H1 ″ attached to the operation unit H1 ′ from the outside in the axial direction of the lock bar H1 ″, the lock bar H1 ″ is formed on the end side plate h3c ′ of the operation unit H1 ′. The lock bar body h10 of the lock bar H1 "inserted into the lock bar insertion recess h3d and sandwiched between the horizontal part guide plates h3e1 of the guide part h3e has a length of the elastic member h11 for urging the lock bar. While being compressed in the direction, it moves horizontally in the direction of the operation recess h2 of the operation portion H1 ′. When the load in the axial direction of the lock bar H1 ″ is released, the elastic member for biasing the lock bar Due to the elastic restoring force of h11, the lock bar main body h10 of the lock bar H1 ″ moves horizontally in a direction away from the operation recess h2 of the operation part H1 ′.

  Next, the locked state of the long side wall 2 and the short side wall 3 will be described mainly with reference to FIGS.

  As described above, in order to assemble the folded container in a box shape, first, the long side wall 2 overlaid on the short side wall 3 that is tilted so as to overlap the bottom portion is first moved vertically. Rotate and stand substantially vertically as shown in FIG.

  Next, the short side wall 3 that is tilted so as to overlap the bottom portion 1 is rotated in the vertical direction, and the lock bar H1 constituting the lock member H1 is rotated in the middle of the short side wall 3 in the vertical direction. As shown in FIG. 13, the inclined surface h12 formed at the tip of the lock bar main body h10 is a vertical plate of the locking hook 2d formed on the long side wall side engaging member 2b. The inclined surface h12 formed on the lock bar main body h10 of the lock bar H1 ″ is formed on the long side wall side engaging member 2b of the long side wall 2. An upper end fitting piece 3f formed on the short side wall engaging member 3e of the short side wall 3 is formed on the long side wall engaging member 2b of the long side wall 2 before and after contacting the vertical plate-like part 2d2 of 2d. To be fitted into the upper end fitting hole 2c1. .

  When the short side wall 3 is further rotated in the vertical direction from the state described above, the lock bar main body h10 of the lock bar H1 "is moved in the direction toward the center of the lock member mounting space A2. Then, a load that causes horizontal movement toward the central portion of the short side wall 3 is generated, and the tip is in contact with the operation recess side plate h3c ″ constituting the lock bar housing portion h3 of the operation portion H1 ′. The lock bar urging elastic member h11 of the bar H1 ″ is compressed in the length direction against the elastic force, and the lock bar main body h10 of the lock bar H1 ″ is horizontally oriented toward the central portion of the short side wall 3. Will move. Due to the horizontal movement of the lock bar main body h10 toward the center of the short side wall 3, the lock bar main body h10 is moved to the long side wall side engaging member 2b of the long side wall 2 as shown in FIG. The lock bar main body h10 is disengaged from the vertical plate-like portion 2d2 of the formed locking hook 2d and the tip of the lock bar main body h10 exceeds the vertical plate-like portion 2d2 of the locking hook 2d. As shown in FIGS. 15 and 16, the lock bar urging elastic member h11 is horizontally moved outward (in the direction of the long side wall 2) by the elastic restoring force of the lock bar urging elastic member h11. Even if a load is applied to the short side wall 3 so as to fall in the direction of the bottom 1, the tip of the lock bar main body h10 is positioned perpendicular to the locking hook 2d. Abutting on the plate-like portion 2d2, Side walls 3, things like fall on the bottom one direction is prevented.

  As described above, the locking hook 2d formed on the long side wall-side engaging member 2b of the long side wall 2 of the inclined surface h12 formed on the lock bar main body h10 of the lock bar H1 ″ contacts the vertical plate-like portion 2d2. Before and after the contact, the upper end fitting piece 3f formed on the short side wall engaging member 3e of the short side wall 3 is connected to the upper end fitting hole 2c1 formed on the long side wall engaging member 2b of the long side wall 2. As shown in FIG. 15, the center side fitting portion 3 h ′ and the lower fitting portion 3 h ″ formed on the short side wall side engaging member 3 e of the short side wall 3 include the long side wall. 2 is fitted into the center fitting hole 2c2 and the lower fitting hole 2c3 formed in the long side wall side engaging member 2b. Thus, in the state which the folding container was assembled in the box shape, upper end part fitting piece 3f, center part fitting part 3h ', and lower part fitting formed in the short side wall side engaging member 3e of the short side wall 3 Since the portion 3h ″ is fitted in the upper end fitting hole 2c1, the center fitting hole 2c2 and the lower fitting hole 2c3 formed in the long side wall side engaging member 2b of the long side wall 2, Even if an outward load is applied to the long side wall 2 or the short side wall 3 due to an article stored in the folding container assembled into a mold, or a load applied to the long side wall 2 or the short side wall 3, the long side wall 2 and the short side wall 3 can be prevented from separating.

  The locking state of the long side wall 2 and the short side wall 3 described above is achieved by simply moving the short side wall 3 in the direction of the long side wall 2 in a substantially vertical state without moving the lock member H1 disposed on the short side wall 3 up and down. Since it only needs to be rotated, the workability of the assembly work of the folding container is improved.

  Further, when the folding container assembled in a box shape is folded, the lock member H1 disposed on the short side wall 3 is moved downward to form the lock member H1 as shown in FIG. The front end of the lock bar main body h10 of the lock bar H1 "is removed from the vertical plate-like portion 2d2 of the locking hook 2d formed on the long side wall side engaging member 2b of the long side wall 2, and Release the locked state with the side wall 3, and then fold the short side wall 3 so as to overlap the bottom 1, and then fold the long side wall 2 toward the bottom 1, thereby folding the folded container assembled in a box shape, Can be folded.

  As described above, the lock member H1 includes the single operation portion H1 ′ and the pair of lock bars H1 ″ attached to the operation portion H1 ′, and operates the operation portion H1 ′ by moving it downward. The lock bar H1 ″ attached to the portion H1 ′ is moved downward so that the tip of the lock bar main body h10 of the lock bar H1 ″ is formed on the long side wall side engaging member 2b. Since it is configured to be able to release the locking state between the long side wall 2 and the short side wall 3 by removing it from the stop hook 2d, the operation portion is similar to a lock member disposed in a conventional folding container. Compared to a conventional folding container in which a conversion mechanism such as a link mechanism that converts the vertical movement of the lock bar into a horizontal movement of the lock bar is provided, the reliability and durability of the lock member are improved.

  Further, since the lock member H1 is composed of only three parts, that is, one operation portion H1 ′ and a pair of lock bars H1 ″, the assembly work of the lock member H1 to the short side wall 3 is simplified. As a result, workability of the assembly work of the folding container can be improved.

  Furthermore, since the number of components of the lock member H1 is small, the component management cost can be reduced.

  Furthermore, since the lock bar H1 ″ can be moved down without going through a complicated mechanism by lowering the operation portion H1 ′, the downward movement of the operation portion H1 ′ is directly performed by the lock bar H1. Therefore, there is no transmission loss for converting the vertical movement into the horizontal movement as in the prior art. Therefore, no large force is required for the downward movement of the operation unit H1 ′, and Quick unlocking can be performed.

  Next, another embodiment of the lock member will be described with reference to FIGS. In addition, the structure of the long side wall 2 and the short side wall 3 is the same as the Example mentioned above.

  The lock member H2 of this embodiment is formed of one operation portion H2 'and two lock bars H2 ", as in the above-described embodiment.

  The operation concave portion side plate h3c ″ of the operation portion H2 ′ is provided on the opposite side of the operation portion biasing elastic piece h4 from the operation concave portion side plate h3c ″ similar to the operation portion biasing elastic piece h4 to the lock bar insertion concave portion h3d. A lock bar urging elastic piece h20 extending downward is formed in the direction. In this embodiment, the bellows-like lock bar urging elastic member h11 formed on the lock bar H1 ″ in the above-described embodiment is omitted, and the lock recess urging elastic piece is provided on the operation recess side plate h3c ″. h20 is formed. In other words, the lock bar H1 ″ is composed only of the horizontally long lock bar body h10.

  When the lock bar H2 ″ is attached to the operation portion H2 ′, the vertical end side h10d of the lock bar main body h10 of the lock bar H1 ″ is configured to come into contact with the free end of the lock bar urging elastic piece h20. Has been.

  When a load is applied to the lock bar H2 ″ attached to the operation portion H2 ′ from the outside in the axial direction of the lock bar H2 ″, the lock bar urging elastic piece h20 is moved to the operation recess side plate h3c ″. When the load is released, the lock bar H2 ″ is elastically deformed toward the center of the short side wall 3 and the lock bar H2 ″ is elastically deformed. Due to the elastic restoring force of the piece h20, it moves horizontally outward.

  Since the method of attaching the lock bar H2 ″ to the operation portion H2 ′ and the effect of the lock member H2 are substantially the same as those in the above-described embodiment, the description thereof is omitted.

  Next, still another embodiment of the lock member will be described with reference to FIGS. In addition, the structure of the long side wall 2 and the short side wall 3 is the same as the Example mentioned above.

  The lock member H3 of this embodiment is formed of an operation portion H3 'and a lock bar H3 ", as in the above-described embodiment.

  In this embodiment, the guide portion h3e formed in the operation portion H1 ′ of the above-described embodiment is omitted, and the middle portion of the top plate h3a constituting the lock bar housing portion h3 is an upper contact. A rib h30a is suspended, and a lower contact rib h30b is erected in the middle of the bottom plate h3b constituting the lock bar housing portion h3. Thus, the guide portion h3e is omitted, and the operation portion H1 ′ of the above-described embodiment is substantially the same except that the upper contact rib h30a and the lower contact rib h30b are formed. Therefore, the detailed description is abbreviate | omitted.

  Also in the lock bar H3 ″ of this embodiment, the bellows-like lock bar urging elastic member h11 formed on the lock bar H1 ″ is omitted as in the embodiment described with reference to FIGS. In addition, the lock bar H3 ″ has a horizontally long lock bar main body h10, as in the above-described embodiment. Further, the upper end of the lock bar main body h10 positioned at the front end in the insertion direction to the operation portion H1 ′. A recess h10b ′ is formed on the upper surface of the horizontal rib h10b, and a recess h10c ′ is formed on the lower surface of the lower horizontal rib h10c located at the distal end in the insertion direction of the lock bar body h10 to the operation portion H1 ′. Has been.

  Further, the recess h10b ′ formed on the upper surface of the upper end horizontal rib h10b of the lock bar main body h10 has a lower end connected to the recess h10b ′, and a free end thereof inclined in the direction of the inclined surface h12 of the lock bar main body h10. Similarly, the lock bar urging elastic piece h31a is formed. Similarly, the recess h10c ′ formed on the lower surface of the lower end horizontal rib h10c of the lock bar body h10 has a lower end connected to the recess h10c ′. A lock bar urging elastic piece h31b having a free end inclined in the direction of the inclined surface h12 of the lock bar main body h10 is formed.

  When the lock bar H3 ″ is attached to the operation portion H3 ′, the lock bar urging elastic piece h31a formed in the recess h10b ′ of the lock bar body h10 of the lock bar H3 ″ is attached to the operation portion H3 ′. A lock bar urging elastic piece h31b formed in the recess h10c ′ of the lock bar main body h10 of the lock bar H3 ″ is formed in the operation portion H3 ′. It is comprised so that it may contact | abut to the lower contact rib h30b.

  When a load is applied to the lock bar H3 ″ attached to the operation unit H3 ′ from the outside in the axial direction of the lock bar H3 ″, the tips of the elastic pieces h31a and h31b for urging the lock bar approach each other. When the load is released, the lock bar urging elastic pieces h31a and h31b of the lock bar H3 "are moved horizontally in the direction of the center of the short side wall 3. Due to the elastic restoring force, the lock bar H3 ″ horizontally moves outward.

  When the lock bar H3 ″ is inserted into the lock bar insertion recess h3d formed in the end side plate h3c ′ of the operation portion H3 ′, the lock bar urging elastic piece h31a of the lock bar H3 ″ is moved to the recess h10b ′. Since the lock bar urging elastic piece h31b of the lock bar H3 ″ is configured to be housed in the recess h10c ′, the opening height T2 of the lock bar insertion recess h3d is set to It can be the same as the embodiment described above, and when the lock bar H3 ″ is attached to the operation portion H3 ′, a gap is formed between the lock bar insertion recess h3d and the lock bar H3 ″, and the lock bar It is possible to prevent H3 ″ from moving up and down.

FIG. 1 is a perspective view of the folding container of the present invention assembled in a box shape. FIG. 2 is a perspective view of the folding container according to the present invention during assembly or folding. FIG. 3 is a partially enlarged perspective view of a long side wall constituting the folding container of the present invention. FIG. 4 is a partial perspective view of a short side wall constituting the folding container of the present invention. FIG. 5 is a partially enlarged perspective view of a short side wall constituting the folding container of the present invention. FIG. 6 is an exploded perspective view of the lock member constituting the folding container of the present invention. FIG. 7 is a perspective view of the operation unit constituting the lock member of the folding container of the present invention. FIG. 8 is also a perspective view of the operation unit constituting the lock member of the folding container of the present invention. FIG. 9 is a perspective view of a lock bar constituting the folding container of the present invention. FIG. 10 is also a perspective view of a lock bar constituting the folding container of the present invention. FIG. 11 is an exploded perspective view of the folding container according to the present invention in a state where a lock member is disposed. FIG. 12 is a perspective view including a vertical cross section in a state where a lock member is disposed on the short side wall of the folding container of the present invention. FIG. 13 is a partially enlarged perspective view showing a state in which the long side wall and the short side wall of the folding container of the present invention are engaged. FIG. 14 is a partially enlarged perspective view of the folding container according to the present invention in a state where the long side wall and the short side wall are engaged with each other. FIG. 15 is a partially enlarged perspective view showing a state in which the long side wall and the short side wall of the folding container of the present invention are engaged. FIG. 16 is a partially enlarged perspective view of the folding container according to the present invention in a state where the long side wall and the short side wall are engaged with each other. FIG. 17 is a partially enlarged perspective view of the folding container according to the present invention in a state where the long side wall and the short side wall are engaged with each other. FIG. 18 is an exploded perspective view of a lock member according to another embodiment of the present invention. FIG. 19 is a perspective view of the locking member shown in FIG. FIG. 20 is an exploded perspective view of a lock member according to still another embodiment of the present invention. FIG. 21 is a perspective view of the locking member shown in FIG.

Explanation of symbols

A2 ......... Lock member mounting space H1 to H3 ... Lock members H1 'to H3' ... Operating members H1 "to H3" ... Lock bar 1 ... Bottom 2 ... Long side wall 2b ... Long side wall engaging member 3 ... ... Short side wall 3e ... Short side wall engaging member

Claims (1)

  Standing from the rear in a folded container having one opposing side wall standing upright substantially vertically from the folded state and the other side wall standing upright next to the side wall after the side wall. In the lock member mounting space formed on the side wall, one operation portion is arranged so as to face the plate-like portion of the side wall that is raised from the rear side, and then the opposite side ends of the side wall that is raised from the rear side. From each rib side, a lock bar is inserted in the horizontal direction, and the lock bar is engaged with the operation portion, whereby a lock member composed of the operation portion and the lock bar is raised from the rear side. A locking hook that is attached to the side wall and that is formed on the lock bar and the side wall that stands up first by lowering the lock bar by the downward movement of the operation unit. Folding container wherein the engagement is configured to be released.

Images