JP6346752B2 - Lock mechanism, sleeve container - Google Patents

Description

  The present invention relates to a lock mechanism used in a sleeve container in which an open end of a cylindrical sleeve is closed with a pallet, and a sleeve container provided with the lock mechanism.

  Conventionally, there has been known a lock mechanism that can take a locked state in which the upper and lower pallets are prevented from detaching from the sleeve of the sleeve container and an unlocked state in which the upper and lower pallets are allowed to be released from the sleeve (for example, (See Patent Document 1 or 2 below).

  This locking mechanism can be moved by operating the through holes provided in the upper and lower ends of the sleeve and the operating state of the engagement state with the through holes on the upper surface side of the upper pallet or the lower surface side of the lower pallet. And a protruding piece.

  However, when the operation unit is provided on the upper surface side or the lower surface side of the pallet, there is a problem that the operation of the lock mechanism becomes very complicated.

  In detail, when trying to operate the operation part provided on the lower surface side of the lower pallet with the conventional locking mechanism, put the hand under the lower pallet while the operator is bent, and the pallet After searching for the operation part that is in the center side of the pallet and cannot be visually recognized from outside, lock the operation part by pulling it outward from the center side of the pallet, and from the outside of the pallet. Unlocking work was done by pushing toward the side. Such work required work that relies on the sense of the fingertips, and was therefore very cumbersome for the packing workers who often wear gloves. Moreover, in the case of the conventional lock mechanism, the right or wrong of the locked state of the lower pallet cannot be easily visually confirmed.

  Further, when the operation unit is provided on the upper surface side of the upper pallet, similarly, when the luggage is stacked in a state in which the luggage is stored, whether the locked state is easily confirmed from the side surface. Also, unlike the lower pallet, the upper pallet can be checked from the upper surface if there is no object on the upper side, but more pallets etc. can be placed on the upper pallet. In this case, confirmation from the upper surface side becomes difficult.

  In addition, as described in Patent Document 2 below, a long hole for slidably attaching an operating portion that slides is opened, and the inside and outside of the pallet having a hollow structure are also provided. Since the internal space of the container communicates with the outside (see, for example, FIG. 8 of Patent Document 2), rainwater or the like enters the inside of the pallet and the inside of the sleeve container through this long hole. Thus, a problem arises in the waterproof performance.

JP 2005-231669 A Japanese National Patent Publication No. 6-504749

  An object of the present invention is to provide a sleeve container locking mechanism that can save labor and improve the reliability of assembling and packing of a sleeve container, and a sleeve container equipped with the locking mechanism.

The present invention employs the following configuration in order to solve the above-described problems. That is, the locking mechanism for a sleeve container according to the present invention is used in a sleeve container including a cylindrical sleeve and a pallet mounted with an outer wall fitted to the end of the sleeve. A locking mechanism for connecting the pallet to the pallet, an engagement portion provided at an end of the sleeve, and a pallet that is provided on the pallet and engages with the engagement portion to be detached from the sleeve. A lock member that is slidable in a horizontal direction from a lock position that prohibits the pallet to a lock release position that allows the pallet to be detached from the sleeve. In the position, the locking member protrudes from the outer surface of the outer wall of the pallet, and in the locking position, the locking member contacts the outer surface of the outer wall of the pallet. The engagement portion is a recessed portion that is provided in the sleeve and opens outward, and is provided in the through hole provided in the sleeve, and in the through hole. It is der that a lock receptacle which opens only outward is, the lock receiving member includes a lock receptacle body mounted in the through-holes in a state of penetrating to the inner surface from the outer surface of said sleeve characterized that you have a mounting flange provided on an opening end side of the lock receptacle body.

  The lock member is preferably arranged in a different color from the pallet and sleeve.

As an embodiment of the engagement portion, it is preferable that the packing is arranged between the sleeve and the front Symbol recess.

  The lock member includes a lock member main body that is slidably supported on the pallet, an arm portion that extends substantially parallel to the outer wall of the pallet from an outer end of the lock member main body, and a tip of the arm portion. A saddle-shaped one having a tip lock portion extending in the direction of the engaging portion is preferable.

  The lock member main body is provided with an operation portion, and one that is attached to the pallet via a slide guide mechanism and a moderation mechanism is a preferred embodiment.

  The slide guide mechanism is provided on the pallet and slidably accommodates a lock member main body of the lock member, a guide pin provided in the lock member accommodation guide, and the lock by the guide pin. What provided the long hole provided in the said lock member main body in order to regulate the sliding range of a member is preferable.

  As a preferred aspect of the lock member accommodation guide portion, a concave in a rectangular shape in plan view provided across the outer surface and the outer wall of the top wall or the bottom wall of the pallet, the shape of the guide pin, The shape of the through hole provided on the pallet into which the guide pin can be inserted is substantially the same, and a packing is disposed between the guide pin and the pallet.

  The moderation mechanism includes a protrusion provided on the inner wall of the lock member accommodation guide portion, and a resin spring formed in a wave shape to be engaged with the protrusion in a moderation manner and provided integrally with the lock member. Those are preferred.

  As the sleeve container using the locking mechanism described above, the cylindrical sleeve and the upper end portion and / or the lower end portion of the sleeve are mounted with the outer wall being externally fitted and connected using the locking mechanism. The thing provided with the said pallet is mentioned.

  Since the present invention is configured as described above, it is possible to save labor and improve the reliability of the assembling work and packing work of the sleeve container.

The whole perspective view which shows the sleeve container concerning one Embodiment of this invention. The disassembled perspective view of the sleeve container concerning the embodiment. The perspective view which shows the locking mechanism of the sleeve container concerning the embodiment. The perspective view which shows the locking mechanism of the sleeve container concerning the embodiment. The top view which shows the locking mechanism of the sleeve container concerning the embodiment. The top view which shows the locking mechanism of the sleeve container concerning the embodiment. XX sectional drawing of FIG. The YY sectional view taken on the line of FIG. The disassembled perspective view which shows the locking mechanism of the sleeve container concerning the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the sleeve container 10 according to the present embodiment is of a standard size used in an automatic warehouse, and has a cylindrical sleeve 1 and an outer side at the upper and lower ends of the sleeve 1. The upper and lower pallets 2 and 3 are mounted with the walls 22 and 32 being externally fitted, and the legs 4 are provided on the bottom side of the lower pallet 3. In other words, the sleeve container 10 is arranged near the outer periphery of the lower pallet 3 for cargo handling, the legs 4 attached to the outer surface of the lower pallet 3, and the inner surface 34 of the lower pallet 3. The sleeve 1 is provided on the pallet 3 with the lower edge 12 supported by the sleeve receiving groove 341, and the upper pallet 2 that closes the upper end opening 13 of the sleeve 1.

  As shown in FIGS. 1 to 4 and FIGS. 7 to 9, the sleeve 1 is, for example, a rectangular tube formed by a plastic hollow plate made of synthetic resin. As shown in FIG. 9, the plastic hollow plate includes, for example, a cap sheet 1a having a plurality of cap-shaped protrusions that are circular in a plan view, and the bottom side and the top of the cap sheet 1a so as to sandwich the cap sheet 1a. It is a three-layer plastic bubble board provided with a flat back sheet 1b and a liner sheet 1c arranged on the surface side. 1 to 8, illustration of the cap sheet 1a, the back sheet 1b, and the liner sheet 1c is omitted.

  Specifically, the sleeve 1 includes a front wall 14, left and right side walls 15 extending from left and right side edges of the front wall 14, and a rear wall 16 connecting between the rear edges of the left and right side walls 15. It is. In the present embodiment, the front wall 14, the left and right side walls 15, and the rear wall 16 are connected via a corner hinge 17. The left and right side walls 15 have a center hinge 18 at an intermediate position in the front-rear direction. Each of the corner hinges 17 is folded in a mountain, and each of the center hinges 18 is folded in a valley so that the entire sleeve 1 can be folded into a flat form. When the sleeve 1 is expanded in a cylindrical shape, the lower edge 12 is engaged with a sleeve receiving groove 341 provided in the lower pallet 3, whereby the lower edge 12 of the sleeve 1 is moved to the lower pallet 3. And the upper edge 11 of the sleeve 1 is held by the upper pallet 2 by engaging the sleeve receiving groove 241 provided in the upper pallet 2.

  As shown in FIGS. 1 to 9, the upper and lower pallets 2 and 3 are formed by vacuum-forming two thermoplastic resin sheet materials using a first mold and a second mold, and then welding them together. It is made by twin sheet molding. That is, the upper and lower pallets 2 and 3 have the same shape. In this embodiment, when the pallets 2 and 3 are combined with the sleeve 1, one pallet 2 is connected to the other pallet 3. It is rotated 180 degrees around the horizontal axis.

  As shown in FIGS. 1 to 9, the upper pallet 2 includes a top wall 21 that has a rectangular shape in plan view, and an outer wall 22 that extends downward from the periphery of the top wall 21. On the outer surface 23 of the top wall 21, there are four corner portions and a recessed portion having a shape capable of engaging with the distal end portion 42 of the leg 4 of the other sleeve container 10 having the same configuration at each of the corner portions. 231 is provided. A sleeve receiving groove 241 for supporting the upper edge 11 of the sleeve 1 is formed on the inner surface 24 of the top wall 21. The sleeve receiving groove 241 is disposed at a position very close to the outer wall 22 of the upper pallet 2, and the width of the sleeve receiving groove 241 corresponds to the thickness dimension of the sleeve 1. Inside the sleeve receiving groove 241, a rubber packing P4 for water stop is arranged. The upper pallet 2 includes a lock member accommodation guide portion 81 for accommodating a lock member 7 described later. Specifically, the lock member accommodation guide portion 81 is a recess provided across the top wall 21 and the outer wall 22 and is formed at a total of four locations, two on the front side and two on the rear side. Yes. More specifically, each lock member accommodation guide portion 81 is provided between the respective recessed portions 231.

  As shown in FIGS. 1 and 2, the lower pallet 3 includes a bottom wall 31 having a rectangular shape in plan view, and an outer wall 32 extending upward from the peripheral edge of the bottom wall 31. . The outer surface (not shown) of the bottom wall 31 is provided with four corner portions and concave portions for mounting the legs 4 at intermediate positions between the corner portions. A screw insertion hole 333 is formed in the central portion of each recess. A sleeve receiving groove 341 for supporting the lower edge 12 of the sleeve 1 is formed on the inner surface 34 of the bottom wall 31. The sleeve receiving groove 341 is disposed at a position very close to the outer wall 32 of the lower pallet 3, and the width of the sleeve receiving groove 341 corresponds to the thickness dimension of the sleeve 1. Inside the sleeve receiving groove 341, a rubber packing (not shown) for water stop is arranged. The lower pallet 3 is provided with a lock member accommodation guide (not shown) for accommodating a lock member 7 described later. Specifically, the lock member accommodation guide portion is a recess provided across the bottom wall 31 and the outer wall 32, and is formed in a total of four locations, two on the front side and two on the rear side. . More specifically, each lock member accommodation guide part is provided between each said recessed part.

  As shown in FIGS. 1 and 2, the leg 4 is made of a synthetic resin formed by injection molding and has a substantially prismatic shape. The legs 4 are set to dimensions that allow the base end portion 41 to be inserted into each recessed portion of the pallet 3. Further, the leg 4 has a distal end portion 42 having a slightly smaller outer dimension than the base end portion 41, and easily has a positioning function with each recessed portion 231 of the pallet 2 of the other sleeve container 1. The size is set so as to be engaged in a state where it can be detached. A female screw hole 43 is provided in the leg 4, and the leg 4 is attached to the pallet 3 by screwing a fixing screw 334 that has passed the screw insertion hole 333 of the pallet 3 into the female screw hole 43. ing.

  A rubber packing P1 for water stop is arranged between the leg 4 and the pallet 3. This packing P1 has a washer shape, and is formed between the upper surface of the base end portion 41 of the leg 4 and the outer surface of the pallet 3 with which the base end portion 41 abuts, that is, the peripheral portion of the screw insertion hole 333 of the pallet 3. It is fixed after being sandwiched between them. That is, since the packing P1 is arranged around the screw insertion hole 333 into which the fixing screw 334 (male screw) for fastening the leg 4 is inserted, the airtightness of the sleeve container 1 is improved, and water from the floor surface is prevented. It can be suppressed.

  Therefore, the sleeve container 10 of the present embodiment includes a lock mechanism 5 for detachably connecting the sleeve 1 and the pallets 2 and 3.

  As shown in FIGS. 1 to 9, the lock mechanism 5 mainly includes engaging portions 6 provided at the upper and lower ends of the sleeve 1 and lock members 7 provided on the pallets 2 and 3. It is configured. Hereinafter, the locking mechanism 5 provided at the coupling portion between the upper end portion of the sleeve 1 and the upper pallet 2 will be described. However, the locking mechanism 5 provided at the coupling portion between the lower end portion of the sleeve 1 and the lower pallet 3 will be described. Since is the same as that on the upper side, description thereof is omitted.

  As shown in FIGS. 2 and 7 to 9, the engaging portion 6 is a recessed portion 61 that is provided in the sleeve 1 and opens at least outward. Specifically, the recessed portion 61 includes a through hole 62 provided in the sleeve 1 and a lock receiving member 63 that is attached to the through hole 62 and opens only outward.

  As shown in FIG. 9, the through hole 62 is provided in a portion corresponding to the above-described lock member accommodation guide portion 81 of the sleeve 1, and includes two left and right positions on the front wall 14 and the rear wall. 16 are formed at two places on the left and right. The through hole 62 is an opening having a rectangular shape in front view that penetrates in the thickness direction of the sleeve 1.

  A through hole 851 is provided in the pallet 2 so as to correspond to the through hole 62 provided in the sleeve 1. That is, the pallet 2 is provided with a through hole 851 at a portion corresponding to the recessed portion 61 of the outer wall 22, and the distal end lock portion 73 inserts the through hole 851 at a lock position (L) described later. It is configured to penetrate and engage with the engaging portion 6.

  As shown in FIGS. 2 and 7 to 9, the lock receiver 63 is made of synthetic resin formed by injection molding, and a lock receiver body 65 mounted in the through-hole 62, And an attachment rod 66 provided on the open end side of the lock receiver main body 65. After the lock receiver body 65 is inserted into the through hole 62, the lock receiver 63 is screwed with a fixing screw 67 inserted from the opening end side into a screw insertion hole 68 formed in the mounting rod 66. By combining, the lock receiver 63 is attached to the sleeve 1.

  In addition, between the said recessed part 61 and the said sleeve 1, the rubber packing P2 for water stop is distribute | arranged. The packing P2 has a rectangular shape, and is provided with a screw insertion hole P21 through which the fixing screw 67 is inserted. The packing P2 is sandwiched between the mounting rod 66 of the lock receiving member 63 forming the recessed portion 61 and the outer surface of the sleeve 1 with which the mounting rod 66 abuts, that is, the peripheral portion of the through hole 62 of the sleeve 1. Above, it is fixed by the fixing screw 67.

  As shown in FIGS. 1 to 9, the lock member 7 is engaged with the engagement portion 6 from the lock position (L) that prohibits the pallet 2 from being detached from the sleeve 1. The pallet 2 is slidable in the horizontal direction until it is pulled out from the portion 6 and unlocked (U) allowing the pallet 2 to be detached from the sleeve 1. 1, 3, 5, and 7, the lock member 7 is set so as to be located inside the outer surface 26 of the outer wall 22 of the pallet 2. On the other hand, in the unlocking position (U) shown in FIGS. 4, 6, and 8, the locking member 7 is set to protrude from the outer surface 26 of the outer wall 22 of the pallet 2. The lock member 7 is arranged in a color different from that of the pallets 2 and 3 and the sleeve 1, and specifically, the lock member 7 is colored yellow or the like that is easily noticed by the operator.

  As shown in FIGS. 1 to 9, the lock member 7 includes a lock member main body 71 slidably supported on the pallet 2, and an outer wall 22 of the pallet 2 from an outer end of the lock member main body 71. This is a saddle type arm provided with an arm portion 72 extending substantially in parallel and a distal end lock portion 73 extending from the distal end of the arm portion 72 in the direction of the engaging portion 6.

  As shown in FIGS. 3 to 9, the lock member main body 71 includes an operation unit 74, and is attached to the pallet 2 via a slide guide mechanism 8 and a moderation mechanism 9. The arm portion 72 is a plate-like member extending in a direction orthogonal to the lock member main body 71, and a reinforcing rib 78 is formed. Note that when the lock member 7 is moved to the lock position (L), the arm portion 72 may be pressed using a hand, a leg or the like instead of operating the operation portion 74. The distal end lock portion 73 is a plate-like member extending in a direction orthogonal to the arm portion 72 and is arranged in parallel with the lock member main body 71.

  As shown in FIGS. 3 to 9, the operation unit 74 is set to a size and shape that can be easily operated by an operator wearing gloves. Specifically, the operation portion 74 is formed inwardly recessed from the outer surface side of the lock member main body 71, and is pressed when the lock member 7 is moved to the lock position (L). A first inner wall 75 and a second inner wall 76 that is pressed when the lock member 7 is moved to the unlock position (U) are provided. In addition, the operation unit 74 includes a display portion 77 that visually appeals to the operator about the sliding direction of the lock member 7.

  As shown in FIGS. 3 to 9, the slide guide mechanism 8 includes a lock member accommodation guide portion 81 that is provided on the pallet 2 and slidably accommodates a lock member main body 71 of the lock member 7, and the lock member accommodation. A guide pin 82 provided in the guide portion 81 and a long hole 83 provided in the lock member main body 71 so as to restrict the sliding range of the lock member 7 by the guide pin 82 are provided.

  As shown in FIGS. 3 to 9, the lock member housing guide portion 81 is a first housing in which the base end side of the lock member body 71 is housed when the lock member 7 is moved to the lock position (L). , And a second recessed portion 85 in which the arm portion 72 is accommodated.

  Each first recessed portion 84 is formed on the front edge side and the rear edge side of the top wall 21 of the pallet 2, and the top wall of the pallet 2 is moved when the lock member 7 is moved to the lock position (L). The width dimension and the depth dimension of the first recessed portion 84 are set so that the outer surface 23 side of 21 and the outer surface of the lock member main body 71 are substantially flush with each other. The first recessed portion 84 has a through hole 843 for engaging the guide pin 82 with the bottom surface 841, and a protrusion 91 of the moderation mechanism 9 described later is formed on the inner wall 842. The through hole 843 is set to have a shape and size that can fit the tip portion of the guide pin 82. Note that the frontmost edge side or the rearmost edge side of the top wall 21 of the pallet 2, that is, the peripheral edge 25 corresponding to the sleeve receiving groove 241 is recessed from the outer surface 23 of the top wall 21 of the pallet 2. In the present embodiment, the outer surface of the peripheral edge 25 is set to be at the same height as the bottom surface 841 of the first recessed portion 84.

  Each second recessed portion 85 is formed on the outer wall 22 of the pallet 2, and when the lock member 7 is moved to the lock position (L), the second recessed portion 85 is formed on the outer surface 26 side of the outer wall 22 of the pallet 2. The width dimension and the depth dimension of the second recessed portion 85 are set so that the outer surface of the arm portion 72 is substantially flush with the outer surface. The second recessed portion 85 is formed with the through hole 851 through which the distal end lock portion 73 can be inserted.

  As shown in FIGS. 3 to 9, the guide pin 82 is provided with a retaining rod 86 that prevents the lock member main body 71 from coming off the lock member accommodation guide portion 81. More specifically, the guide pin 82 includes a guide pin main body 821 that can slide in the long hole 83, and a retaining step portion 88 of the long hole 83 that has a diameter larger than that of the guide pin main body 821 and will be described later. And a tip fitting portion 822 that is provided on the side opposite to the retaining rod 86 and has a smaller diameter than the guide pin main body 821 and fits into the through hole 843. The outer peripheral shape of the tip fitting portion 822 is substantially the same as the planar shape of the through hole 843. In other words, the shape of the guide pin 82 for prohibiting the lock member 7 from detaching from the pallet 2 and the shape of the through hole 843 provided in the pallet 2 and into which the guide pin 82 can be inserted are substantially the same. Are the same. The guide pin 82 is fixed to the pallet 2 by a fixing screw 87 inserted from the inner surface 24 side of the pallet 2.

  A rubber packing P3 for water stop is arranged between the guide pin 82 and the pallet 2. This packing P3 has a washer shape, and is formed between the lower surface of the guide pin main body 821 of the guide pin 82 and the outer surface of the pallet 2 with which the guide pin main body 821 abuts, that is, the peripheral portion of the through hole 843 of the pallet 2. It is fixed after being sandwiched between them.

  As shown in FIGS. 3 to 9, the elongated hole 83 is provided on the proximal end side of the lock member main body 71 and extends in the sliding direction of the lock member 7. The elongated hole 83 is provided with a retaining step portion 88 that engages with a retaining rod 86 of the guide pin 82 to prevent the locking member main body 71 from being detached from the locking member accommodating guide portion 81. is there.

  As shown in FIGS. 5, 6, and 9, the moderation mechanism 9 has a projection 91 provided on the inner wall 842 of the lock member accommodation guide portion 81 and a waveform to moderately engage the projection 91. And a resin spring 92 provided integrally with the lock member 7.

  As shown in FIGS. 5, 6, and 9, the protrusion 91 protrudes inward from the inner wall 842 of the lock member accommodation guide portion 81 in a semicylindrical shape. The protrusion 91 can guide the resin spring 92 on the inner surface 844 thereof.

  As shown in FIGS. 5, 6, and 9, the resin spring 92 is a plate-like member provided on the inner surface side of the lock member main body 71, and one end of the resin spring 92 is integrally provided on the lock member main body 71. An end locking portion 93 and a distal end locking portion 94 provided integrally with the other end of the base end locking portion 93 are provided. The base end locking portion 93 can be engaged with the inner surface 844 of the protrusion 91 when the lock member 7 is in the lock position (L), and is more than a certain amount in the lock release position (U) direction. Unless this force is applied, it is biased outward so as to maintain this engaged state. The front end locking portion 94 can be engaged with the inner surface 844 of the protrusion 91 when the lock member 7 is in the unlocked position (U), and is more than a certain amount in the lock position (L) direction. As long as no force is applied, it is biased outward to maintain this engaged state.

  Next, a method for locking the sleeve container 10 provided with the lock mechanism 5 will be described. Hereinafter, the locking mechanism 5 provided at the coupling portion between the upper end portion of the sleeve 1 and the upper pallet 2 will be described. However, the locking mechanism 5 provided at the coupling portion between the lower end portion of the sleeve 1 and the lower pallet 3 will be described. Since is the same as that on the upper side, description thereof is omitted.

  First, when moving the lock member 7 from the lock position (L) to the lock release position (U), the operator puts his hand on the operation unit 74 and slides the lock member 7. On the way, the resin spring 92 is deformed against the urging force to release the temporarily fixed state, and the lock member 7 is guided along the lock member accommodation guide portion 81. When the locking member 7 is moved to the unlocking position (U) where the guide pin 82 is in contact with the one end 80 side of the long hole 83, the leading end locking portion 73 is extracted from the recessed portion 61. In this state, as shown in FIGS. 4, 6, and 8, the locking member 7 protrudes from the outer surface 26 of the outer wall 22 of the pallet 2, so that it is easy to visually recognize that the lock is released.

  Next, when the lock member 7 is moved from the unlock position (U) to the lock position (L), the operator places a hand on the operation unit 74 or presses the arm unit 72 inward. Thus, the lock member 7 is slid. On the way, the resin spring 92 is deformed against the urging force to release the temporarily fixed state, and the lock member 7 is guided along the lock member accommodation guide portion 81. When the lock member 7 is moved to the lock position (L) where the guide pin 82 is in contact with the other end 89 side of the long hole 83, the distal end lock portion 73 is accommodated in the recessed portion 61. In this state, as shown in FIGS. 1, 3, 5, and 7, it is visually recognized that the lock member 7 is located inside the outer surface 26 of the outer wall 22 of the pallet 2 and is in a locked state. It is easy to do.

  As described above, according to the present embodiment, the cylindrical sleeve 1 and the upper and lower pallets 2, 3 mounted with the outer walls 22, 32 fitted on the upper and lower ends of the sleeve 1. A locking mechanism 5 for connecting the sleeve 1 and each of the pallets 2 and 3 to the sleeve container 10 provided with an engaging portion 6 provided at the upper and lower ends of the sleeve 1; Pull out from the engaging portion 6 from a lock position (L) provided on each pallet 2 and 3 to engage the engaging portion 6 and prevent the pallets 2 and 3 from being detached from the sleeve 1. A locking mechanism 5 for a sleeve container 10 having a locking member 7 slidable in a horizontal direction between the pallets 2 and 3 and a lock release position (U) that allows the pallets 2 and 3 to be detached from the sleeve 1; Configured. And in the said lock release position (U), the said locking member 7 protrudes from the outer surfaces 26 and 36 of the outer side walls 22 and 32 of each said pallets 2 and 3, and the said locking member 7 is in the said locking position (L). The outer walls 22 and 32 of the pallets 2 and 3 are set so as to fit inside the outer surfaces 26 and 36.

  In such a case, since the lock member 7 in the unlocking position (U) protrudes from the outer surfaces 26 and 36 of the pallets 2 and 3, the lock member 7 is particularly formed from the side of the sleeve container 10. The unlocked state of can be confirmed at a glance. In addition, during the operation, the laborious operation of placing the hand on the outer surface 23 of the pallets 2 and 3 (the outer surface of the pallet 3 is not shown) and locking it in a groping state becomes unnecessary. Therefore, it is possible to save labor and improve the reliability of assembling work and packing work of the sleeve container 10.

  Thus, the lock mechanism 5 according to the present embodiment is very effective when applied to the lower pallet 3 where it is difficult for the operator to perform fine work. Of course, even if this locking mechanism 5 is applied to the upper pallet 2, the same effect as that of the lower pallet 3 or an effect similar thereto can be obtained. If the lock mechanism 5 is used at the joint with the pallets 2 and 3 on both sides, further assembly work and packing work can be saved as compared with the lock mechanism 5 only on the lower side. The reliability can be improved.

  In the present embodiment, since the upper and lower pallets 2 and 3 have the same shape, the configuration of the lock mechanism 5 can be shared by the upper and lower sides.

  Furthermore, in the present embodiment, the lock member accommodation guide portion 81 is a recess having a rectangular shape in plan view provided across the outer surface 23 and the outer wall 22 of the top wall 21 of the pallet 2 or the bottom of the pallet 3. A recess having a rectangular shape in plan view provided across the outer surface of the wall 31 and the outer wall 32, and the shape of the guide pin 82 for prohibiting the lock member 7 from detaching from the pallets 2 and 3; The shape of a through-hole 843 provided in the pallets 2 and 3 into which the guide pin 82 can be inserted is substantially the same, and a packing P3 is disposed between the guide pin 82 and the pallets 2 and 3. Because of this, there is provided a long hole for moving the operating portion that allows communication between the inside and outside of the conventional pallet having a hollow structure and between the inside space of the sleeve container and the outside. Therefore, the shape of the guide pin 82 and the shape of the through hole 843 can be designed to be substantially the same. Therefore, the packing P3 can be arranged in the vicinity of the through hole 843 to improve the airtightness inside the sleeve container 10 and improve the waterproof performance.

  Further, since the lock member 7 is arranged in a different color from the pallets 2, 3 and the sleeve 1, the visibility of the lock member 7 can be further enhanced.

  Since the engaging portion 6 is a recessed portion 61 provided in the sleeve 1 and opening at least outward, the lock member 7 can be smoothly inserted and removed. In particular, in the present embodiment, since the recess 61 is attached to the through hole 62 with the lock receiving member 63 that opens only outward, the airtightness in the sleeve container 10 can be improved.

  Further, in the present embodiment, since the packing P2 is disposed between the lock receiving member 63 of the recessed portion 61 and the sleeve 1, the airtightness inside the sleeve container 10 is improved and the waterproof performance is improved. Can do.

  The lock member 7 is slidably supported by the pallets 2 and 3, and the lock member body 71 is substantially parallel to the outer walls 22 and 32 of the pallets 2 and 3 from the outer end of the lock member body 71. The lock member 7 has a relatively simple structure because it is a saddle-shaped member having an extending arm portion 72 and a distal end locking portion 73 extending from the distal end of the arm portion 72 toward the engaging portion 6. It can be.

  Further, since the lock member main body 71 includes an operation unit 74 and is attached to the pallets 2 and 3 via the slide guide mechanism 8 and the moderation mechanism 9, the operation unit 74 is provided. The operation force can be appropriately converted into the sliding operation of the tip lock portion 73.

  The slide guide mechanism 8 is provided in each of the pallets 2 and 3, and is provided in the lock member accommodation guide portion 81 and a lock member accommodation guide portion 81 that slidably accommodates the lock member main body 71 of the lock member 7. Since the guide pin 82 and the elongated hole 83 provided in the lock member main body 71 for restricting the sliding range of the lock member 7 by the guide pin 82 are provided, the lock member 7 is moved in an appropriate direction. Can be slid.

  The moderation mechanism 9 is formed in a wave shape so as to moderately engage with the projection 91 provided on the inner wall 842 of the lock member accommodation guide portion 81 and provided integrally with the lock member 7. Since the resin spring 92 is provided, the lock member 7 can be temporarily held at the lock position (L) and the lock release position (U) with a relatively simple configuration.

  In addition, since the leg 4 of the present embodiment is configured separately from the pallet 3, the sleeve container 10 has a relatively high rigidity compared to the case where the pallet 3 and the leg 4 are integrally formed. It can be. In detail, the conventional sleeve container has a pallet formed integrally with a synthetic resin, and the outer dimensions of the tip of the leg are set so that only the pallets that are not attached to the sleeve can be stacked and nested. Many are set to be smaller than the outer dimension of the base end. In such a case, since the space inside the leg having the tapered shape is used as the sleeve receiving groove, the lower edge of the sleeve is slightly curved in the thickness direction along the shape of the leg. Therefore, there is a problem that it is difficult to maintain the rigidity of the sleeve when a load is applied from above.

  However, if the leg 4 and the pallet 3 are configured separately as in the present embodiment, the degree of freedom in designing the pallet 3 can be increased regardless of the shape of the leg 4. That is, as shown in the present embodiment, by setting the sleeve receiving groove 341 of the pallet 3 to hold the lower edge 12 of the sleeve 1 straight, it is difficult to apply a force in the thickness direction to the sleeve 1. It can be a structure. Accordingly, it is possible to increase the rigidity of the sleeve 1 and consequently the strength of the entire sleeve container 10.

  The present invention is not limited to the embodiment described above.

  The locking mechanism according to the present invention is any type as long as it is used for a sleeve container including a cylindrical sleeve and a pallet mounted with an outer wall fitted to the end of the sleeve. For example, it is conceivable that the lock mechanism is applied only to the lower side.

  As an example, in a sleeve container having a cylindrical sleeve and upper and lower pallets mounted with outer walls fitted to the upper and lower ends of the sleeve, the sleeve is connected to the lower pallet. While applying the locking mechanism of the present invention, another locking mechanism may be applied to the joint between the sleeve and the upper pallet.

  As another example, in a sleeve container including a cylindrical sleeve and a pallet that forms a bottom portion attached to an outer wall of the lower end of the sleeve, the sleeve and the lower side of the sleeve are provided. The locking mechanism of the present invention is applied to the connection point with the pallet, and the upper end opening of the sleeve is closed by using a lid member other than the pallet, or the upper end opening of the sleeve is not attached with a member serving as a lid. May be used for

  As described above, the sleeve container includes the cylindrical sleeve, and a pallet that forms a bottom portion attached to the lower end portion of the sleeve with the outer wall fitted, and the pallet that forms the bottom portion, The thing using the lock mechanism of this invention in order to connect with a sleeve is mentioned.

  On the contrary, the one in which the lock mechanism is applied only to the upper side can be considered.

  For example, in a sleeve container provided with a cylindrical sleeve and upper and lower pallets mounted with outer walls fitted to the upper and lower ends of the sleeve, the present invention is provided at the joint between the sleeve and the upper pallet. In addition to the above-described locking mechanism, another locking mechanism may be applied to the coupling portion between the sleeve and the lower pallet.

  Thus, as the sleeve container, the cylindrical sleeve, and the pallet that forms the lid portion, which includes the pallet that forms the lid portion attached to the upper end portion of the sleeve with the outer wall externally fitted thereto, is formed. In order to connect the sleeve and the sleeve, those using the locking mechanism of the present invention can be mentioned.

  In addition, as in the above-described embodiment, the one provided with the lock mechanism of the present invention on both the upper and lower sides, that is, the cylindrical sleeve, and the outer wall fitted on the upper and lower ends of the sleeve, respectively. If the locking mechanism of the present invention is used to connect the upper and lower pallets and the sleeve, the locking mechanism of the present invention is provided only on the lower side or only on the upper side. Compared to the above, it is possible to obtain effects such as labor saving of the assembling work and packing work of the sleeve container and improvement of certainty.

  The lock member is not limited to the lock member that fits inside the outer surface of the outer wall of each pallet, but may be set to be flush with the outer surface.

  The recessed portion is not limited to the through hole, and may be a recessed portion having a bottom portion. In addition, the recessed portion may be formed only from a through hole provided in the sleeve, and is formed on the reinforcing lock receiver or the outer wall of the pallet as shown in the above-described embodiment. The through hole is not essential.

  Further, the shape and size of the lock member accommodation guide are not limited to those shown in the drawings, and can be variously changed.

  In this embodiment, as a specific aspect of the plastic hollow plate, a cap sheet having a large number of cap-shaped protrusions, a flat back sheet disposed on the bottom surface side and the top surface side so as to sandwich the cap sheet, and Although the description has been given using the three-layered bubble board provided with the liner sheet, “plastic corrugated cardboard” or “plastic folded honeycomb board” may be applied as a plastic hollow plate instead of this plastic bubble board. .

  As described in the present embodiment, the “plastic bubble board” is formed by, for example, forming a large number of cap-shaped projections in a vacuum on a sheet obtained by extruding a resin such as polypropylene from a die in a melted state. This refers to a molded product formed by fusing a flat back sheet and a liner sheet to the bottom and top surfaces, respectively, to form a hollow structure plate. The sheet body of the present invention is not limited to a three-layered material, and may be a two-layered material composed of a cap sheet and a back sheet.

  “Plastic corrugated cardboard” refers to a molded product comprising two sheets formed by melt extrusion of plastic and a large number of ribs that run in parallel by connecting them. The “plastic folded honeycomb board” refers to a molded article having a honeycomb structure formed by giving a vertical portion to a plastic sheet at a predetermined pitch and sequentially folding the plastic sheet in the longitudinal direction.

  In addition, various changes may be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Sleeve container 1 ... Sleeve 2, 3 ... Pallet 22, 32 ... Outer wall 26, 36 ... Outer surface 5 ... Lock mechanism 6 ... Engagement part 61 ... Recessed part 7 ... Lock member (L) ... Lock position (U) ... Lock release position 71 ... Lock member main body 72 ... Arm part 73 ... Tip lock part 74 ... Operation part 8 ... Slide guide mechanism 81 ... Lock member accommodation guide part 82 ... Guide pin 83 ... Long hole 9 ... Moderation mechanism 91 ... Projection 92 ... Resin spring P3 ... packing

Claims (8)

A locking mechanism for connecting the sleeve and the pallet used in a sleeve container comprising a cylindrical sleeve and a pallet mounted with an outer wall fitted to the end of the sleeve,
An engagement portion provided at an end portion of the sleeve and a lock position provided on the pallet to engage the engagement portion and prohibit the pallet from being detached from the sleeve are extracted from the engagement portion. A lock member that is slidable in a horizontal direction between the pallet and an unlock position that allows the pallet to be detached from the sleeve;
In the unlocked position, the locking member protrudes from the outer surface of the outer wall of the pallet,
In the locking position, the locking member is set to be flush with or inside the outer surface of the outer wall of the pallet, and
The engaging portion is a recessed portion provided in the sleeve and opening outward, and includes a through hole provided in the sleeve and a lock receiving member provided in the through hole and opening only outward. der thing was is,
The lock receiver includes a lock receiver body mounted in the through hole in a state of penetrating from the outer surface to the inner surface of the sleeve, and an attachment rod provided on the opening end side of the lock receiver body. A locking mechanism for a sleeve container. The lock mechanism according to claim 1, wherein the lock member is arranged in a color different from that of the pallet and the sleeve. The lock member is slidably supported by the pallet, the lock member main body, an arm portion extending substantially parallel to the outer wall of the pallet from the outer end of the lock member main body, and the tip of the arm portion. The lock mechanism according to claim 1 or 2, wherein the lock mechanism includes a tip lock portion that extends in the direction of the engagement portion. The lock mechanism according to claim 3, wherein the lock member main body includes an operation unit and is attached to the pallet via a slide guide mechanism and a moderation mechanism. The slide guide mechanism is provided on the pallet and slidably receives a lock member main body of the lock member, a guide pin provided in the lock member accommodation guide, and the lock by the guide pin The lock mechanism according to claim 4, further comprising a long hole provided in the lock member main body so as to regulate a sliding range of the member. The lock member accommodation guide part is a recess having a rectangular shape in plan view provided across the outer surface and the outer wall of the top wall or bottom wall of the pallet, and the shape of the guide pin and the lock member accommodation guide part The lock mechanism according to claim 5, wherein a shape of a through hole that is provided and into which the guide pin can be inserted is substantially the same, and a packing is disposed between the guide pin and the pallet. The moderation mechanism includes a protrusion provided on an inner wall of the lock member accommodation guide portion, and a resin spring formed in a wave shape and provided integrally with the lock member to moderately engage the protrusion. The locking mechanism according to claim 4, 5 or 6. The lock mechanism according to claim 1, 2, 3, 4, 5, 6 or 7, which is mounted in a state where an outer wall is externally fitted to the cylindrical sleeve and an upper end portion and / or a lower end portion of the sleeve. A sleeve container comprising the pallet connected by using the pallet.