JP4745898B2 - Folding container - Google Patents

Description

  The present invention relates to a folding container used for storing, transporting or transporting various articles.

  Conventionally, among the four side walls disposed between the frame-shaped upper frame and the bottom, one opposing long side wall is constituted by an upper divided side wall and a lower divided side wall, and the long side of the upper frame And the upper end of the upper divided side wall, the lower end of the upper divided side wall, the upper end of the lower divided side wall, and the lower end of the lower divided side wall and the long side of the bottom are respectively hingedly connected. There is known a folding container in which the upper end portion of a short side wall called an opposite side wall is hinge-connected to the short side portion of the upper frame, and the side wall is configured to be pivotable upward. The folding container assembled in a box shape rotates the flip-up side wall, whose upper end is pivotally attached to the upper frame, from the substantially vertical state to the inside of the folding container to the substantially horizontal state and then the long side wall. A folding container assembled in a box shape is compact and low in height by folding the upper divided side wall and the lower divided side wall, which are formed by a hinge connecting part that connects the upper divided side wall and the lower divided side wall. It is configured so that it can be folded.

  In order to take out the articles stored in the folding container assembled in the box shape described above or store the articles in the folding container assembled in the box shape, an opening is formed on at least one of the raised side walls. For example, Patent Document 1 discloses a folding container in which a door member having a lock member is disposed on a raised side wall in which an opening is formed.

  Then, by operating the locking member, the locking portion formed at the tip of the locking member is engaged with the engaging recesses formed in the left and right frames forming the opening of the flip-up side wall, thereby locking the locking member. And the locking portion formed at the tip of the lock member is discharged from the engagement recesses formed in the left and right frames forming the opening of the flip-up side wall, so that the locked state by the lock member is released. It is configured.

JP-A-7-257571

  In the conventional folding container described above, the number of parts of the lock member is large, and the structure thereof is complicated. Therefore, there is a problem that it takes time and skill to assemble the lock member into the folding container.

  Further, by operating the locking member, the locking portion formed at the tip of the locking member is engaged with the engaging recesses formed in the left and right frames forming the opening of the flip-up side wall, thereby locking the locking member. And the locking portion formed at the tip of the lock member is discharged from the engagement recesses formed in the left and right frames forming the opening of the flip-up side wall, so that the locked state by the lock member is released. However, when the lock member is operated, the lock member moves while tilting, and the engagement between the locking portion of the lock member and the engagement recesses formed on the left and right frames of the flip-up side wall is ensured. There was a problem that the door was rotated because the lock state was inadvertently released without being performed.

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

In order to achieve the above-mentioned object, the present invention has an upper frame, a bottom, a side wall, an upper side wall, and a lower side wall, and a door member is disposed in an opening formed in at least one side wall. In the folding container, the lock member that moves up and down in the lock member accommodating space of the door member is configured to be guided by the first guide sliding means and the second guide means , and the lock member is The locking member is bent and deformed in a bow shape so that the locking block of the locking member does not come into contact with the end guide rib located in the locking member accommodating space of the door member, and from the front surface of the door member, It arrange | positions in a lock member accommodation space part, and a lock member is assembled | attached to a door member by moving up a lock member after that.

  Since the lock member that moves up and down in the lock member accommodation space of the door member is guided by the first guide sliding means and the second guide means, the tilt of the lock member from the horizontal position can be prevented. Therefore, it is possible to prevent the locking block of the lock member from being inadvertently discharged from the locking frame member formed on the flip-up side wall. It is possible to prevent the opening of the flip-up side wall from being opened by rotating to the front.

  The lock member is bent and deformed in a bow shape so that the locking block of the lock member does not contact the end guide rib located in the lock member accommodation space of the door member, and from the front surface of the door member, Since the lock member is assembled to the door member by placing it in the lock member accommodating space of the door member and then moving the lock member upward, the assembly of the lock member to the door member reliably and While being able to carry out correctly, the workability | operativity of the assembly | attachment work to the door member of a lock member improves.

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

  First, the overall configuration will be described with reference to FIG. 1 which is a perspective view of the folding container of the present invention.

  The folding container has a side wall (hereinafter referred to as an upper frame 1, a bottom part 2, and a short side part 1 a opposed to the upper frame 1, the upper end of which is pivotally supported in the inner direction of the folding container. The side wall is referred to as a “splashing side wall”.) 3 and the upper divided side wall 4 ′ disposed on the opposite long side portion 1 b side of the upper frame 1 and vertically divided and hinged to each other. The upper end of the upper divided side wall 4 ′ is hinged to the long side 1 b of the upper frame 1, and the lower end of the upper divided side wall 4 ′ and the lower divided side wall are connected. The upper end portion of 4 ″ is hinge-connected, and the lower end portion of the lower divided side wall 4 ″ and the long side portion 2a of the bottom portion 2 are hinge-connected.

  In order to take out the articles stored in the folding container assembled in a box shape, or to store the articles in the folding container assembled in a box shape, an opening is formed in at least one raised side wall 3, A door member D (described later) that opens and closes the opening is disposed on the spring-up side wall 3, and the lower frame 3a that forms the opening of the spring-up side wall 3 and the lower end of the door member D are connected by a hinge such as a biaxial structure. In addition, a lock member 5 to be described later is disposed on the upper portion of the door member D, and the door member D is tilted forward unless the lock member 5 is released from the locked state. Is configured not to be opened.

  As shown in FIG. 1, as shown in FIG. 3, the substantially vertical flip-up side wall 3 of the folding container assembled in a box shape is rotated in the inner direction of the folding container. Next, the hinge part connecting the upper divided side wall 4 ′ and the lower divided side wall 4 ″ is moved in the inner direction of the folding container, and the upper divided side wall 4 ′ and the lower divided side wall 4 ″ are Each of the folding containers is configured to be folded into a compact state with a low height by overlapping each other.

  Next, the flip-up side wall 3 on which the door member D is disposed will be described mainly with reference to FIGS. In the present embodiment, an example in which the door member D is disposed only on one of the opposing raised side walls 3 is shown. Therefore, hereinafter, it is simply referred to as the raised side wall 3. In this case, the flip-up side wall 3 on which the door member D is disposed is indicated.

  The flip-up side wall 3 is formed in a frame shape in which a substantially rectangular opening 3 ′ is formed, and the flip-up side wall 3 includes the lower frame 3a, the upper frame 3b, and both ends of the lower frame 3a and the upper frame 3b. And opposing side frames 3c for connecting the two. Further, on the lower surface of the upper frame 3b, in the vicinity of the back surface of the flip-up side wall 3 (the surface located on the inner side of the folding container assembled in a box shape), and on the facing surface of the opposite side frame 3c, and the flip-up Near the back surface of the side wall 3, a pedestal 3d having a substantially U-shaped front shape is formed. The pedestal 3d has a horizontal part 3d1 along the upper frame 3b and a vertical part 3d2 along the side frame 3c opposite to the upper part 3d. If necessary, the pedestal 3d can be formed in a substantially square shape by forming a horizontal portion similar to the horizontal portion 3d1 along the lower frame 3a.

  A reinforcing frame 3e is formed on a pedestal 3d located at the corner between the upper frame 3b of the flip-up side wall 3 and the opposite side frame 3c. One end of the reinforcing frame 3e is connected to the side frame 3c, and the horizontal plate portion 3e1 substantially parallel to the upper frame 3b and the other end of the horizontal plate portion 3e1 upward toward the central portion of the upper frame 3b. And an inclined plate portion 3e2 connected to the upper frame 3b.

  Further, a fitting block member 3f is provided in the vicinity of the center of the outer surface of the vertical portion 3d2 facing the pedestal 3d formed on the flip-up side wall 3 (the surface located on the outer side of the folding container assembled in a box shape). Is formed. The fitting block member 3f has a connecting rib 3f1 that is substantially perpendicular to the side frame 3c of the raised side wall 3 and has one end connected to the side frame 3c, and a substantially central portion that is connected to the other end of the connecting rib 3f1. And a block-shaped fitting portion 3f2 extending along the side frame 3c. The height of the connecting rib 3f1 (the distance from the outer surface of the vertical portion 3d2 of the base 3d) is fitted. It is configured to be lower than the height of the portion 3f2 (distance from the outer surface of the vertical portion 3d2 of the pedestal 3d).

  Furthermore, a locking frame member 3g is formed at the corner between the vertical portion 3d2 and the side frame 3c of the pedestal 3d formed on the flip-up side wall 3. The locking frame member 3g includes a vertical portion 3d2 of the pedestal 3d, a plate-like horizontal portion 3g1 connected to the side frame 3c, and a plate-like vertical portion 3g2 suspended downward from the vicinity of the tip of the horizontal portion 3g1. The locking frame member 3g is formed by the side surface of the side frame 3c, the horizontal portion 3g1 and the vertical portion 3g2 constituting the locking frame member 3g, and the vertical portion 3d2 of the pedestal 3d. A locking recess 3g3 is formed in which the central direction of the side wall 3 is opened. Further, a guide inclined surface 3g2 'inclined to the vertical portion 3d2 of the pedestal 3d is formed at the lower end portion of the outer surface of the vertical portion 3g2 from above to below.

  Furthermore, a fitting protrusion 3h is formed on the outer surface of the opposing vertical portion 3d2 of the pedestal 3d located above the locking frame member 3g.

  Furthermore, a strip-like outermost vertical rib 3c1 substantially perpendicular to the pedestal 3d is formed on the opposite side frame 3c of the flip-up side wall 3, adjacent to the outermost vertical rib 3c1, and the outermost vertical rib. A strip-shaped inner vertical rib 3c2 is formed in parallel with the rib 3c1. The outermost vertical rib 3c1 and the inner vertical rib 3c2 are partitioned by horizontal partition ribs 3c3 formed at a predetermined interval, and the outermost vertical rib 3c1, inner vertical rib 3c2, and horizontal partition rib 3c3 are separated from each other. Thus, at least a compartment 3c4 having an opening on the outside is formed.

  The inner surface of the upper divided side wall 4 ′ is located near the lower or central portion of the inner surface of the upper divided side wall 4 ′ (the surface located on the inner side of the folding container assembled in a box shape) and in the vicinity of both ends vertical surface 4 a ′. The upper insertion is composed of a vertical portion 6a ′ substantially perpendicular to the vertical portion 6a and an insertion portion 6b ′ extending from the tip of the vertical portion 6a ′ to the vertical portion 6a ′ and extending toward the central portion of the upper divided side wall 4 ′. A member 6 'is formed. Similarly, the lower divided side wall 4 ″ is located near the upper or central portion of the inner surface of the lower divided side wall 4 ″ (the surface located on the inner side of the folding container assembled in a box shape) and in the vicinity of both end vertical surfaces 4a ″. A vertical portion 6a "substantially perpendicular to the inner surface of" and an insertion portion 6b "extending from the tip of the vertical portion 6a" to the vertical portion 6a "and extending toward the center of the lower divided side wall 4". A lower insertion member 6 ″ is formed.

  Among the compartments 3c4 formed on the side frames 3c facing the splash side wall 3 described above, in a state where the folding container is assembled in a box shape, in the vicinity of the upper insertion member 6 'formed on the upper divided side wall 4'. The partition chamber 3c4 is configured such that the insertion portion 6b ′ of the upper insertion member 6 ′ is inserted therein, and is similarly positioned in the vicinity of the lower insertion member 6 ″ formed on the lower divided side wall 4 ″. In the partition chamber 3c4, the insertion portion 6b ″ of the lower insertion member 6 ″ is inserted. With this configuration, when a load is applied from the inside to the upper divided side wall 4 ′ and the lower divided side wall 4 ″ of the folding container assembled in a box shape from the inside, the upper divided side wall 4 It is possible to prevent 'and the lower divided side wall 4 "from bulging outward. Note that the compartment into which the insertion portion 6b ′ of the upper insertion member 6 ′ is inserted is referred to as an upper insertion member compartment and is denoted by reference numeral 3c4 ′ as shown in FIG. The compartment into which the insertion portion 6b ″ of the lower insertion member 6 ″ is inserted is referred to as a lower insertion member compartment and is denoted by reference numeral 3c4 ″ as shown in FIG.

  Next, the door member D will be described mainly with reference to FIGS. 6 and 9 to 11.

  The door member D includes a substantially rectangular plate-like portion d1, a periphery of the plate-like portion d1, substantially perpendicular to the plate-like portion d1, and an outer surface of the plate-like portion d1 (a folding container assembled in a box shape). And a peripheral wall d2 erected on the outer surface d1a. The peripheral wall d2 is formed of an upper end horizontal portion d2a and an end vertical portion d2c facing the lower end horizontal portion d2b. Further, on the outer surface d1a of the plate-like part d1 located below the upper end horizontal part d2a, a first upper horizontal rib d3 connects the opposite end vertical part d2c with a predetermined distance from the upper end horizontal part d2a. Further, the outer surface d1a of the plate-like portion d1 positioned below the first upper horizontal rib d3 is spaced apart from the first upper horizontal rib d3 by a predetermined distance from the second upper horizontal rib d3. The rib d4 is erected so as to connect the opposite end vertical portions d2c, and further, on the outer surface d1a of the plate-like portion d1 located above the lower end horizontal portion d2b, the lower end horizontal portion d2b and the predetermined portion The lower horizontal rib d5 is erected so as to connect the opposite end vertical portions d2c with a spacing of. Still further, on the outer surface d1a of the plate-like part d1 located in the vicinity of the opposite end vertical part d2c, the end-side vertical rib d6 is spaced apart from the end vertical part d2c by a second upper horizontal rib. It is erected so as to connect d4 and the lower horizontal rib d5.

  The plate-like portion d1 of the door member D is surrounded by the outer surface d1a of the plate-like portion d1, the first upper horizontal rib d3, the second upper horizontal rib d4, and the opposite end vertical portion d2c of the peripheral wall d2. A lock member accommodating space A1 is formed in which a front side in which a lock member 5 described later is accommodated is opened.

  On the outer surface d1a of the plate-like part d1 located in the lock member accommodating space A1, the vertical center line L1 of the plate-like part d1, in other words, the vertical center line L1 of the door member D is sandwiched in a line symmetrical position. The inner vertical guide rib d7 is erected, the lower end of the inner vertical guide rib d7 is connected to the second upper horizontal rib d4, and there is a predetermined gap between the upper end d7a and the first upper horizontal rib d3. The gap is formed.

  Further, on the outer surface d1a of the plate-like portion d1 located in the lock member accommodating space A1, and on the outer surface d1a of the plate-like portion d1 located on the end vertical portion d2c side of the peripheral wall d2 from the inner vertical guide rib d7. An outer vertical guide rib d8 is erected at a line symmetrical position across the vertical center line L1 of the plate-like part d1. The lower end of the outer vertical guide rib d8 is connected to the second upper horizontal rib d4, and a predetermined gap is formed between the upper end d8a and the first upper horizontal rib d3. The height of the outer vertical guide rib d8 (distance from the upper surface of the second upper horizontal rib d4 to the upper end d8a of the outer vertical guide rib d8) H1 is the height of the inner vertical guide rib d7 (from the upper surface of the second upper horizontal rib d4). The inner vertical guide rib d7 is formed at a predetermined height lower than the distance H2 from the upper end d7a, and the depth of the outer vertical guide rib d8 (from the outer surface d1a of the plate-like portion d1 to the vertical end d8b of the outer vertical guide rib d8). Distance W1 is wider than the depth width of the inner vertical guide rib d7 (distance from the outer surface d1a of the plate-like portion d1 to the vertical end d7b of the inner vertical guide rib d7) W2 by a predetermined width.

  Further, an engagement hook d9 is formed on the upper part of the opposing surface of the opposing inner vertical guide rib d7. The engagement hook d9 has a vertical part d9a that is in contact with the opposing surface of the inner vertical guide rib d7, and a tip perpendicular to the vertical part d9a from the tip of the vertical part d9a and in the direction of the vertical center line L1 of the plate-like part d1. The hook portion d9b extends.

  The first upper horizontal rib d3 and the second upper horizontal rib d4 are connected in the vicinity of the end vertical portion d2c of the peripheral wall d2, and an appropriate number of vertical portions are provided with a predetermined gap from the outer surface d1a of the plate-like portion d1. An end guide rib d10 is formed. In this embodiment, an example in which two end guide ribs d10 are formed is shown.

  The plate-shaped part d1 located outside the above-described end guide rib d10 and between the first upper horizontal rib d3 and the second upper horizontal rib d4 is cut out to be positioned in the lock member accommodating space A1. Cutout portions d11 are formed at both ends of the plate-like portion d1.

  Further, an upper horizontal cut end surface d12 is formed by cutting the end vertical portion d2c of the peripheral wall d2 located in the lock member accommodating space A1 in the horizontal direction, and below the upper horizontal cut end surface d12. A lower horizontal cut end surface d13 is formed by cutting the end vertical portion d2c located from the tip of the end vertical portion d2c toward the outer surface d1a of the plate-like portion d1, thereby forming a lower horizontal cut end surface d13. On the outer surface d1a side of the plate-like portion d1, a corner notch d14 is formed by cutting off the end vertical portion d2c of the peripheral wall d2 until it reaches the second upper horizontal rib d4. Furthermore, an upper horizontal short rib d15 reaching the end guide rib d10 is formed at the lower end of the upper horizontal cut end surface d12, and similarly, an upper end of the lower horizontal cut end surface d13 reaches the end guide rib d10. A lower horizontal short rib d16 is formed. The upper horizontal short rib d15, the outermost end guide rib d10, and the lower horizontal short rib d16 form a recess d17.

  In the vicinity of both ends of the upper end horizontal portion d2a of the peripheral wall d2 constituting the door member D, there are an inclined plate portion d18a inclined downward in the direction of the end vertical portion d2c of the peripheral wall d2, and an end portion of the inclined plate portion d18a. A fitting step portion d18 is formed which includes a horizontal plate portion d18b extending to the end vertical portion d2c.

  A plate-like portion d1 positioned between the end vertical portion d2c and the end-side vertical rib d6 of the peripheral wall d2 constituting the door member D is disposed on the inner surface (inside of the folding container assembled in a box shape). Surface) A fitting block into which the fitting block member 3f formed on the above-mentioned flip-up side wall 3 is fitted as shown in FIGS. 10 and 11 by bulging from d1b toward the outer surface d1a. A member fitting recess d19 is formed. The fitting block member fitting recess d19 has a groove formed in the main recess d19a having a depth capable of accommodating the fitting portion 3f2 of the fitting block member 3f and the inner surface d1b side of the plate-like portion d1 of the end vertical portion d2c. The connecting rib 3f1 of the fitting block member 3f formed by cutting it into a shape is configured with a slit d19b that can be fitted, and the slit d19b communicates with the main recess d19a and has an end portion It reaches the outer surface d2c ′ of the vertical portion d2c.

  Further, a plate-like portion d1 located between the fitting step portion d18 and the upper horizontal short rib d15 formed in the vicinity of both end portions of the upper end horizontal portion d2a of the peripheral wall d2 constituting the door member D described above is provided on the inner surface thereof. By bulging from d1b in the direction of the outer surface d1a, as shown in FIG. 10 and the like, a fitting projection fitting recess d20 into which the fitting projection 3h formed on the flip-up side wall 3 can be fitted is provided. Is formed.

  In addition, in FIG. 9 etc., d21 is a locking member stopper protruding from the outer surface d1a of the plate-like part d1 located in the locking member accommodating space A1 formed in the door member D as necessary. The lock member 5 disposed in the lock member accommodation space A1 of the door member D has a function of preventing the lock member 5 from dropping more than necessary. In the present embodiment, two locking member stoppers d21 are provided at a predetermined distance from the outer vertical guide rib d8 toward the end vertical portion d2c of the peripheral wall d2 and closer to the second upper horizontal rib d4. Is formed.

  Next, the lock member 5 will be described with reference to FIGS. 12 and 13.

  The lock member 5 has a horizontally long main body portion 5A. The main body portion 5A has a horizontally long plate-like portion 5a. The upper side of the horizontally long plate-like portion 5a is opposed to the horizontally long plate-like portion 5a. A substantially vertical upper flange 5b is formed, and the upper flange 5b is located in the central region and occupies most of the horizontal strip 5b1, and inclined portions 5b2 inclined downward from both ends of the horizontal strip 5b1, It is formed from a horizontal stepped portion 5b3 connected to the lower end of the inclined portion 5b2. Further, a lower flange 5c substantially perpendicular to the horizontally long plate-like portion 5a is formed on the lower side of the horizontally long plate-like portion 5a, and the lower flange 5c includes a lower horizontal belt-like portion 5c1 located in the central region, An inner vertical portion 5c2 extending upward from the tip of the lower horizontal strip portion 5c1, an upper horizontal strip portion 5c3 extending horizontally from the upper end of the inner vertical portion 5c2, and a lower portion from the tip of the upper horizontal strip portion 5c3 An outer vertical portion 5c4 extending in the horizontal direction and an end horizontal portion 5c5 extending in the horizontal direction from the lower end of the outer vertical portion 5c4. Further, the tip of the horizontal step portion 5b3 forming the upper flange 5b and the tip of the end horizontal portion 5c5 forming the lower flange 5c are connected by a vertical end wall portion 5d, and the vertical end wall portion 5d includes A locking block 5e that can enter and exit the locking recess 3g3 of the locking frame member 3g formed on the above-mentioned flip-up side wall 3 projects substantially perpendicular to the vertical end wall 5d.

  An elastic piece 5f is formed on the back surface of the upper horizontal strip 5c3 constituting the lower flange 5c of the lock member 5 with the tip 5f2 positioned in the direction of the center of the lock member 5 with respect to the root 5f1. Yes. When the elastic piece 5f is elastically deformed in a substantially horizontal state, the entire elastic piece 5f is a recess 5g formed by the upper horizontal belt-like portion 5c3, the inner vertical portion 5c2, and the outer vertical portion 5c4 constituting the lower flange 5c. It is comprised so that it may be accommodated in. With this configuration, when the elastic piece 5f is elastically deformed in a substantially horizontal state, the distal end portion 5f2 of the elastic piece 5f is in contact with the lower surface of the lower horizontal strip portion 5c1 and is bent and damaged. Can be prevented.

  In addition, an operation recess 5h into which an operator's finger can be inserted is formed by recessing the substantially central region of the horizontally long plate-like portion 5a. Furthermore, slits 5i1 that are perpendicular to the horizontally long plate-like portion 5a and reach the horizontally long plate-like portion 5a or near the horizontally long plate-like portion 5a are formed in the lower horizontal strip-like portion 5c1 located on both sides of the operation recess 5h. In addition, the door member D described above is locked by forming the parallel vertical wall portions 5i2 extending from the lower horizontal strip portion 5c1 to the horizontal strip portion 5b1 forming the upper flange 5b so as to sandwich the slit 5i1. A vertical guide groove 5i for the outer vertical guide rib into which the outer vertical guide rib d8 formed in the member accommodating space A1 can be inserted is formed.

  Further, on the side of the locking block 5e of the opposite side wall 5h1 forming the operation recess 5h, the side wall 5h1 of the operation recess 5h, the side wall 5j1 opposed to the side wall 5h1, and the side wall 5h1 of the operation recess 5h A recess 5j is formed that includes a bottom plate 5j2 that extends in the 5j1 direction but does not reach the side wall 5j1 and a back wall 5j3. Further, between the front end of the side wall 5j1 of the bottom plate 5j2 and the side wall 5j1, there is an inner vertical guide rib slit 5k into which the inner vertical guide rib d7 formed in the lock member accommodating space A1 of the door member D described above can be inserted. Is formed. Furthermore, on the side of the locking block 5e of the side wall 5h1 of the operation recess 5h, the back wall 5h2 of the operation recess 5h extends in the direction of the side wall 5j1 of the recess 5j, so A locking piece 5m is formed.

  Furthermore, at least a part of the horizontal stepped portion 5b3 of the lock member 5 and the entire locking block 5e are formed by the outer surface d1a of the plate-like portion d1 and the end guide rib d10 located in the lock member accommodating space portion A1 of the door member D. The locking block 5e of the lock member 5 is notched at both ends of the plate-like portion d1 located in the lock member accommodation space A1. It is comprised so that it may be located in the notch part d11 formed of.

  In addition, a vertical reinforcing rib 5n and a horizontal reinforcing rib 5p can be appropriately formed in a space surrounded by the horizontally long plate-like portion 5a, the upper flange 5b, the lower flange 5c, and the vertical end wall portion 5d.

  The lock member 5 having the above-described configuration is integrally formed of synthetic resin by injection molding or the like, and the portion from the operation recess 5h to the locking block 5e sandwiches the operation recess 5h as a whole as a bow. It is configured to be elastically deformable in the state.

  Next, the assembly | attachment of the lock member 5 to the door member D is demonstrated using FIGS.

  First, as shown in FIG. 14, the lock member 5 is placed on the front surface of the lock member housing space A <b> 1 of the door member D and the vertical center line L <b> 1 of the door member D and the vertical center line L <b> 2 of the lock member 5. And are arranged so as to substantially match. In this way, by disposing the lock member 5 on the front surface of the lock member accommodation space A1 of the door member D, on the front surface of the outer vertical guide rib d8 formed in the lock member accommodation space A1 of the door member D, The vertical guide groove 5i for the outer vertical guide rib of the lock member 5 is located, and the inner vertical guide rib d7 of the lock member 5 is disposed on the front surface of the inner vertical guide rib d7 formed in the lock member accommodating space A1 of the door member D. The slit 5k is configured to be positioned.

  When the lock member 5 is brought close to the lock member accommodation space A1 of the door member D in the state described above, both end portions of the lock member 5 are end portions located in the lock member accommodation space A1 of the door member D. Since it comes into contact with the guide rib d10, the locking block 5e of the lock member 5 approaches the door member D against the elastic force of the lock member 5 as shown in FIG. Next, the entire lock member 5 is bent and deformed in a bow shape so that the locking block 5e of the lock member 5 does not come into contact with the end guide rib d10 located in the lock member accommodating space A1 of the door member D. . When the lock member 5 is further moved closer to the lock member accommodating space A1 of the door member D in this state, the locking block 5e of the lock member 5 is positioned in the lock member accommodating space A1 of the door member D. Without being in contact with the end guide rib d10, the lock member accommodating space A1 is located. It should be noted that the distal end portion 5f2 of the elastic piece 5f is arranged so that the elastic piece 5f formed on the back surface of the upper horizontal strip portion 5c3 constituting the lower flange 5c does not contact the second upper horizontal rib d4 of the door member D. , Close to the horizontally long main body 5A.

  When the bow-like curved deformation of the lock member 5 is released from the above-described state, the lock member 5 tries to return to a straight shape by its elastic restoring force, and the distal end portion such as the locking block 5e of the lock member 5 is The door member D is inserted into a gap formed between the outer surface d1a of the plate-like portion d1 located in the lock member accommodating space A1 and the end guide rib d10. And the front-end | tip parts, such as the locking block 5e of the lock member 5, are the gap | interval formed between the outer surface d1a of the plate-shaped part d1 located in the lock member accommodation space part A1 of the door member D, and the edge part guide rib d10. So that the outer vertical guide rib d8 formed in the lock member accommodating space A1 of the door member D is not inserted into the outer guide groove 5i for the outer vertical guide rib of the lock member 5, that is, The lower horizontal strip 5c1 located at the top of the vertical guide groove 5i for the outer vertical guide rib of the lock member 5 is in contact with the outer vertical guide rib d8 formed in the lock member accommodating space A1 of the door member D. The lock member 5 is disposed close to the second upper horizontal rib d4 of the door member D. In this state, the inner vertical guide rib slit 5k of the lock member 5 is positioned on the front surface of the inner vertical guide rib d7 formed in the lock member accommodating space A1 of the door member D, and the lock member 5 is vertically long. The upper end of the locking piece 5m is positioned below the lower end of the hook part d9b of the engagement hook d9 formed on the upper part of the inner vertical guide rib d7 formed in the lock member accommodating space A1 of the door member D. It is configured.

  When the lock member 5 is raised from the state described above, the vertical guide groove for the outer vertical guide rib of the lock member 5 that is in contact with the outer vertical guide rib d8 formed in the lock member accommodating space A1 of the door member D. The lower horizontal strip 5c1 located at the top of 5i is disengaged from the upper end d8a of the outer vertical guide rib d8, and as shown in FIG. 18, the outer vertical guide rib d8 is a longitudinal guide groove 5i for the outer vertical guide rib. Inserted into. As described above, when the outer vertical guide rib d8 is inserted into the outer vertical guide rib vertical guide groove 5i, substantially simultaneously with the outer vertical guide rib d8, the lower horizontal guide rib d8 is positioned at the top of the outer vertical guide rib vertical guide groove 5i. Since the belt-shaped portion 5c1 is in contact, the lock member 5 that has been curved and deformed in a bow shape returns to the original linear state by its elastic restoring force, and the outer surface of the plate-shaped portion d1 of the door member D. d1a and the surface of the lock member 5 facing the outer surface d1a, in other words, the back surface of the lock member 5 is closer to the outer surface d1a of the plate-like portion d1, and as shown in FIG. The inner vertical guide rib d7 formed in the lock member accommodating space A1 of the door member D is inserted into the inner vertical guide rib slit 5k of the member 5. In this state, as described above, the vertically long lock of the lock member 5 located below the lower end of the hook portion d9b of the engagement hook d9 formed in the lock member accommodation space A1 of the door member D. The upper end of the piece 5m is closer to the lower end of the hook portion d9b of the engagement hook d9, but the vertically long locking piece 5m is still configured not to contact the hook portion d9b of the engagement hook d9. ing.

  When the lock member 5 is further raised from the state described above, as shown in FIG. 18, the lock member 5 is formed on the upper side of the inner vertical guide rib d7 formed in the lock member accommodation space A1 of the door member D. The hook portion d9b of the engagement hook d9 is engaged with the vertically long locking piece 5m of the lock member 5. That is, the hook portion d9b of the engagement hook d9 is inserted into the recess 5q formed by the vertically long locking piece 5m, the side wall 5h1 forming the operation recess 5h, and the back wall 5j3 forming the recess 5j. .

  As described above, the lock member 5 is assembled in the lock member accommodation space A1 of the door member D. The lock member 5 disposed in the lock member accommodation space A1 is used by the operator. Unless the finger is put into the operation recess 5h and lowered, the locking block 5e of the lock member 5 includes the upper horizontal short rib d15 of the door member D, the outermost end guide rib d10 and the lower horizontal short rib d16. When the opening 3 ′ of the flip-up side wall 3 is closed by the door member D as shown in FIG. 1 and FIG. As shown in FIG. 19, the five locking blocks 5 e are configured to be inserted into the locking recesses 3 g 3 of the locking frame member 3 g formed on the flip-up side wall 3. Therefore, a load is applied to the door member D from the inside of the folding container assembled in a box shape, and the door member D is centered on the hinge portion between the lower frame 3a of the flip-up side wall 3 and the lower end portion of the door member D, Even if it tries to rotate outward, the locking block 5e of the lock member 5 abuts on the vertical portion 3g2 of the locking frame member 3g, and the door member D is prevented from rotating forward. When the opening 3 ′ of the splash side wall 3 is closed by the door member D as shown in FIGS. 1 and 2, the door member D has an inner peripheral surface facing the splash side wall 3. However, because the door member D is assembled in a box shape even if a load is applied to the door member D from the outside because it is configured to be in contact with or close to the pedestal 3d formed on the splash side wall 3. It is configured so that it does not rotate in the inner direction of the folded container.

  Further, as shown in FIGS. 1 and 2, the opening 3 ′ of the flip-up side wall 3 is closed by the door member D, and the locking block 5 e of the lock member 5 is formed in the flip-up side wall 3. As shown in FIG. 16, from the state inserted in the locking recess 3g3 of the locking frame member 3g, that is, the door member D is locked to the flip-up side wall 3 by the lock member 5, When the member 5 is lowered, the elastic piece 5f formed on the back surface of the upper horizontal belt-like portion 5c3 constituting the lower flange 5c resists the elastic force of the elastic piece 5f, and the tip portion 5f2 thereof is a horizontally long main body. While being deformed so as to approach the portion 5A, the locking block 5e of the locking member 5 is positioned below the lower end of the vertical portion 3g2 of the locking frame member 3g formed on the flip-up side wall 3. In other words, the locking block 5e of the lock member 5 is discharged from the locking recess 3g3 of the locking frame member 3g formed on the flip-up side wall 3. Thus, by releasing the lock state between the lock member 5 disposed on the door member D and the locking frame member 3g formed on the flip-up side wall 3, the door member D is rotated forward, As shown in FIG. 4, the opening 3 ′ of the flip-up side wall 3 can be opened. In addition, when the lock member 5 is lowered, the lock member 5 disposed on the door member D and the locking frame member 3g formed on the flip-up side wall 3 are released from the unlocked state unnecessarily. For the lock member, the horizontally long main body portion 5A of the lock member 5 protrudes from the outer surface d1a of the plate-like portion d1 located in the lock member accommodation space portion A1 of the door member D so that the lock member 5 does not descend. It is configured to abut against the stopper d21 and prevent further descent. Further, when the operator removes his / her finger from the operation recess 5h, the lock member 5 is configured to move upward by the elastic restoring force of the elastic piece 5f.

  As described above, in order to lock the door member D and the raised side wall 3 or to release the locked state between the door member D and the raised side wall 3, the inside of the lock member accommodating space A1 of the door member D. When the lock member 5 disposed on the door is moved up and down, the lock member 5 is formed with a pair of outer vertical guide ribs d8 formed in the lock member housing space A1 of the door member D. The guide member is vertically moved while being guided by the first guide means configured by being inserted into the pair of vertically elongated guide grooves 5i for the outer vertical guide ribs, and is formed in the lock member accommodating space A1 of the door member D. Second guide means configured by inserting the pair of inner vertical guide ribs d7 into the pair of inner vertical guide rib slits 5k formed in the lock member 5, respectively. It is configured to move up and down while being more assistance. Thus, the lock member 5 that moves up and down in the lock member accommodating space A1 of the door member D is configured to be guided by the first guide sliding means and the second guide means. Therefore, it is possible to prevent the lock member 5 from moving up and down while inclining.

  Further, the lock member 5 that moves up and down in the lock member accommodating space A1 of the door member D is configured to be guided by the first guide sliding means and the second guide means. Accordingly, the locking block 5e of the lock member 5 can be inadvertently discharged from the locking recess 3g3 of the locking frame member 3g formed on the flip-up side wall 3. Therefore, it is possible to prevent the door member D from being inadvertently rotated forward and the opening 3 ′ of the spring-up side wall 3 from being opened.

  Further, when the lock member 5 is assembled to the door member D, as described above, the lock member 5 is connected to the end where the locking block 5e of the lock member 5 is located in the lock member accommodating space A1 of the door member D. The lock member 5 is curved and deformed in a bow shape so as not to contact the part guide rib d10, and is disposed in the lock member accommodation space A1 of the door member D from the front surface of the door member D. Thereafter, the lock member 5 is Since it can be assembled simply by moving it upward, the lock member 5 can be reliably and accurately assembled to the door member D, and the workability of the assembly of the lock member 5 to the door member D is improved. Will improve.

  When the folding container is assembled in a box shape and the opening 3 ′ of the flip-up side wall 3 is closed by the door member D, the outer surface of the opposing vertical portion 3 d 2 of the pedestal 3 d formed on the flip-up side wall 3. The fitting portion 3f2 of the fitting block member 3f formed in the vicinity of the center portion of the fitting member is fitted into the main recess d19a of the fitting block member fitting recess d19 formed in the plate-like portion d1 of the door member D. Since the load is applied to the upper divided side wall 4 'and the lower divided side wall 4 "from the inside of the folding container, the upper divided side wall 4' and the lower divided side wall 4" are curved and deformed outward. Even if the opposing side frames 3c forming the opening 3 ′ of the flip-up side wall 3 are pulled in the curved deformation and try to bend in a direction away from each other, the deformation is prevented. It is possible to prevent the splash side wall 3 whose strength and rigidity are reduced by forming the mouth portion 3 ′, and the locking block 5 e of the lock member 5 is formed on the splash side wall 3. It is possible to prevent inadvertent discharge from the locking recess 3g3 of the locking frame member 3g, and inadvertently, the door member D rotates to the front, and the opening of the flip-up side wall 3 is opened. It is possible to prevent the part 3 ′ from being opened.

  Further, when the folding container is assembled in a box shape and the opening 3 ′ of the flip-up side wall 3 is closed by the door member D, the folding container protrudes above the opposing vertical portion 3 d 2 of the base 3 d of the flip-up side wall 3. Since the fitting protrusion 3h is configured to be fitted in the fitting protrusion fitting recess d20 formed in the plate-like part d1 of the door member D, the opening 3 of the flip-up side wall 3 is formed. Since the movement of the door member D closing 'in the up-down direction and the left-right direction can be suppressed, the locking block 5 e of the locking member 5 is formed by the locking frame member 3 g formed on the flip-up side wall 3. It is possible to prevent inadvertent discharge from the locking recess 3g3. As a result, the door member D rotates inadvertently, and the opening 3 ′ of the raised side wall 3 is opened. Can prevent such things , It is possible to prevent damage to the hinge portion of the side wall 3 and the door member D flip up.

  As shown in FIGS. 6 to 9, the base plate 3d located at the corner of the side frame 3c facing the upper frame 3b of the flip-up side wall 3 has a horizontal plate portion 3e1 and an inclined plate portion 3e2. A frame 3e is formed, and a fitting step portion d18 having an inclined plate portion d18a and a horizontal plate portion d18b is formed in the vicinity of both end portions of the upper end horizontal portion d2a of the peripheral wall d2 constituting the door member D. When the folding container is assembled in a box shape and the opening 3 ′ of the flip-up side wall 3 is closed by the door member D, the reinforcement formed on the flip-up side wall 3 as shown in FIG. 20. The horizontal plate portion 3e1 of the frame 3e and the horizontal plate portion d18b of the fitting step portion d18 formed on the door member D face each other and face each other, and the inclined plate portion of the reinforcing frame 3e formed on the flip-up side wall 3 3e2 and door An inclined plate portion d18a of the fitting step portion d18 formed in D is configured so as to face in close proximity.

  A load is applied from above to the upper frame 1 of the folding container assembled in a box shape, and the upper frame 1 may be deformed downward. However, the lower frame 3a as described above is formed on the short side 1a of the upper frame 1. When the flip-up side wall 3 formed in a frame shape from the upper frame 3b and the opposite side frame 3c is hinge-connected, the flip-up side wall 3 having the opening 3 'is low in strength and rigidity. However, as described above, the horizontal plate portion 3e1 of the reinforcing frame 3e formed on the flip-up side wall 3 and the horizontal portion of the fitting step portion d18 formed on the door member D are damaged. While the plate portion d18b approaches and confronts, the inclined plate portion 3e2 of the reinforcing frame 3e formed on the flip-up side wall 3 and the inclined plate portion d18 of the fitting step portion d18 formed on the door member D. Are formed so that they face each other close to each other, so that the deformation of the flip-up side wall 3 caused by the deformation of the upper frame 1, particularly the deformation of the upper frame 3 b of the flip-up side wall 3, is formed on the flip-up side wall 3. This can be borne by the contact between the frame 3e and the fitting step portion d18 formed on the door member D. Therefore, it is possible to prevent the splash side wall 3 having the opening 3 ′ from being damaged.

FIG. 1 is a perspective view of a folding container of the present invention assembled in a box shape. FIG. 2 is a partially enlarged perspective view of the folding container of the present invention shown in FIG. FIG. 3 is a partially enlarged perspective view showing a state in which the flip-up side wall of the folding container of the present invention is rotated. FIG. 4 is a partially enlarged perspective view of the folding container according to the present invention with the door member opened. FIG. 5 is a partially enlarged perspective view of the folding container of the present invention. FIG. 6 is an exploded perspective view of a flip-up side wall having an opening constituting the folding container of the present invention and a door member. FIG. 7 is a front view of a flip-up side wall having an opening constituting the folding container of the present invention. FIG. 8 is a partially enlarged perspective view of a flip-up side wall having an opening constituting the folding container of the present invention. FIG. 9 is a partially enlarged perspective view of a door member constituting the folding container of the present invention. FIG. 10 is a partially enlarged perspective view of a door member that also constitutes the folding container of the present invention. FIG. 11 is a partially enlarged perspective view showing an engaged state between the flip-up side wall and the door member constituting the folding container of the present invention. FIG. 12 is a perspective view of a lock member disposed on a door member constituting the folding container of the present invention. FIG. 13 is a perspective view of a lock member disposed on a door member that similarly constitutes the folding container of the present invention. FIG. 14 is an exploded perspective view of a door member and a lock member constituting the folding container of the present invention. FIG. 15 is a partially enlarged perspective view of FIG. FIG. 16 is a perspective view of the door member constituting the folding container of the present invention in a state where the lock member is disposed. FIG. 17 is a perspective view of the door member that constitutes the folding container of the present invention in a state where the lock member is similarly disposed. FIG. 18 is a partial horizontal cross-sectional view of the door member constituting the folding container of the present invention in a state where the lock member is similarly disposed. FIG. 19 is a partially enlarged perspective view showing a lock-up state of the flip-up side wall and the lock member constituting the folding container of the present invention. FIG. 20 is a perspective view showing a state in which a door member is disposed in the opening of the flip-up side wall constituting the folding container of the present invention.

Explanation of symbols

D ... Door member d7 ... Inner vertical guide rib d7
d8 ····· Outside vertical guide rib d8
d9 ..... engaging hook d9
d19 ············································································ 20 Bottom part 3 ... Splashing side wall 3 '... Opening part 3e ... Reinforcing frame 3f ... Fitting block member 3g ...・ ・ ・ Locking frame member 3h ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Fitting protrusion 4 ′ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Upper divided side wall 4 ”・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lower divided side wall 5 ・ ・ ・ ・ ・ ・..Lock members

Claims (1)

In a folding container having a top frame, a bottom, a raised side wall, an upper divided side wall, and a lower divided side wall, and having a door member disposed in an opening formed in at least one of the raised side walls, the lock member is accommodated in the door member. The lock member that moves up and down in the space is configured to be guided by the first guide sliding means and the second guide means , and the lock member is locked by the locking block of the lock member. The locking member is curved and deformed in a bow shape so as not to come into contact with the end guide ribs located in the member accommodating space, and is arranged in the locking member accommodating space of the door member from the front surface of the door member, and then the locking member A folding container , wherein the lock member is configured to be assembled to the door member by moving the door upward .

Images