JP6155160B2 - Lid member - Google Patents

Description

  The present invention relates to a quadrangular plate-like lid member used on a container placed on the surface side of a skid pallet.

  As shown in FIG. 5, a skid pallet P may be used when transporting a container 30 containing articles. The skid pallet P is a single-sided pallet in which legs are formed on the back side of a flat deck portion, and the container 30 is placed on the front side of the deck portion.

  When the container 30 is transported using the skid pallet P, a flat lid member 40 is placed on the container 30, the container 30 is sandwiched between the lid member 40 and the skid pallet P, and a belt 41 is attached thereto. The container 30 and the skid pallet P are fixed by winding or the like. Thereby, the state of the container 30 stacked on the skid pallet P is stabilized, and occurrence of load collapse or the like is suppressed (see Patent Document 1).

  As shown in FIGS. 6A and 6B, a container 30 having an engagement protrusion 31 on the upper edge of the side wall is known as a container 30 that can be used by being stacked. The container 30 is provided with an accommodation recess 32 that fits into the engagement protrusion 31 on the lower surface side of the bottom wall. When stacked, the container 30 has the engagement protrusion 31 of the lower container 30 and the upper container 30. It is comprised so that the accommodation recessed part 32 of this may engage. Thereby, the position shift of the upper and lower containers 30 at the time of stacking the containers 30 is suppressed (refer patent document 2).

JP 2012-240704 A JP 2001-335029 A

  By the way, the composite body of the container 30 and the skid pallet P fixed together using the lid member may be stacked up and down in units of the composite body during storage or transportation. That is, the upper composite skid pallet P is stacked on the lower composite lid member 40 so as to be placed thereon.

  At this time, if the container 30 placed on the skid pallet P is the container 30 having the engaging protrusion 31 on the upper edge of the side wall, the load acting on the container 30 through the lid member 40 is applied to the lower composite body. In some cases, the engaging protrusion 31 of the container 30 is deformed by being concentrated on the engaging protrusion 31 that is the only contact portion with the lid member 40. If the engagement protrusion 31 is deformed excessively, the container 30 cannot be stacked while the engagement protrusion 31 is engaged with the receiving recess 32 of the upper container 30, and the container 30 cannot be used. Become.

  The present invention has been made in view of such a conventional situation, and an object of the present invention is to provide a lid member that suppresses concentration of a load on the engaging protrusion of the container and is unlikely to be deformed in the engaging protrusion. There is.

  In order to achieve the above object, the lid member according to claim 1 is a square plate-like lid member that is used by being placed on a container placed on the surface side of the skid pallet. When the skid pallet is stacked on top, a mounting surface for mounting the legs of the skid pallet is provided on the front surface side, and containers are stacked on the portion located on the back side of the mounting surface described above An accommodating portion for accommodating the engaging protrusion provided on the upper edge of the side wall of the container to be engaged at the time and an abutting portion for contacting the upper edge of the side wall of the container are provided. It is characterized by that.

  According to the said structure, the load transmitted to a container through a cover member acts on the side wall upper edge which the contact part provided in the cover member side contacts. As a result, the load acting on the engaging protrusion is dispersed, or the load does not act on the engaging protrusion, and the load is suppressed from being concentrated on the engaging protrusion of the container. As a result, deformation of the engagement protrusion of the container is difficult to occur.

  In addition, since a contact portion is provided on the back side of the mounting surface for mounting the leg portion of the skid pallet, the load acting on the lid member from the skid pallet can be transmitted linearly up and down to the container. Can do. Thereby, the mounting state of the container and the lid member is stabilized. Further, deformation of the lid member can be suppressed.

  In the lid member, on the front surface side, a groove-shaped placement portion into which the tip of the leg portion of the skid pallet is inserted is provided, and the placement surface is preferably the bottom surface of the placement portion. According to the said structure, a skid pallet can be stably mounted in the surface side of a cover member.

  In the lid member, auxiliary contact portions for contacting the engaging protrusions are provided at portions located on the back side of the placement surface and located at the four corners of the lid member. Preferably it is.

  If the four corners of the lid member are not sufficiently in contact with the container, the lid member tends to wobble on the container. On the other hand, the four corners of the lid member are parts where the engaging protrusions of the container are located on the back side. Therefore, in the above configuration, the contact portions with the container at the four corners are ensured by providing auxiliary contact portions at the four corners of the lid member for contacting the engagement protrusions. Thereby, the wobbling of the lid member on the container can be suppressed.

  According to the lid member of the present invention, the concentration of the load on the engaging protrusion of the container is suppressed, and the engaging protrusion is hardly deformed.

(A) is a perspective view which shows the surface side of a cover member, (b) is a perspective view which shows the back surface side of a cover member. The figure which shows the relationship between the back surface of a cover member, and a container. The figure which shows the relationship between the back surface of a cover member, and a container. (A) is the sectional view on the AA line, (b) is the sectional view on the BB line, (c) is the sectional view on the CC line. The perspective view which shows a skid pallet, a container, and a cover member. (A) is a perspective view of a container, (b) is an effect | action figure which shows the engagement state of a container.

Hereinafter, the lid member of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the lid member 10 is a resin molded product having a square plate shape.
As shown in FIG. 1A, a rectangular frame-shaped outer edge portion 11 formed along the periphery of the lid member 10 is provided on the surface side of the lid member 10. In the inner region of the outer edge portion 11, a pair of end portion placement portions 12 and a center placement portion 13 that can be engaged with the legs of the skid pallet P are provided.

  Each of the pair of end placement portions 12 has a groove shape extending along the opposing first side edge 10 a of the lid member 10. A flat placement surface 12 a is formed as the inner bottom surface of the groove-shaped end placement portion 12. The central mounting portion 13 is positioned in the middle of the pair of end portion mounting portions 12 and has a groove shape extending in parallel with the end portion mounting portion 12. A flat mounting surface 13a is formed as the inner bottom surface of the groove-shaped center mounting portion 13.

  Further, in the outer edge portion 11, protrusions extending along the second side edge 10 b and projecting to the surface side (upward) are provided at both ends of the portion located on the second side edge 10 b side of the lid member 10 facing each other. Each of the shaped locking portions 14 is provided. When the lid member 10 is used, the locking portion 14 abuts on the belt member wound around the lid member 10 and regulates the belt member from falling off (see FIG. 5).

  As shown in FIG. 1B, a pair of end bulging portions 21 bulging toward the back surface side (downward) corresponding to each end placement portion 12 are provided on the back surface side of the lid member 10. ing. In other words, the end bulging portion 21 is located on the back side of the placement surface 12 a of the end placement portion 12 and is formed in a ridge shape extending along the first side edge 10 a of the lid member 10. A flat outer bottom surface 21 a is formed on the bottom portion of the ridge-shaped end bulging portion 21.

  In addition, a central bulging portion 22 that bulges to the rear surface side (downward) corresponding to the central mounting portion 13 is provided on the rear surface of the lid member 10. That is, the central bulging portion 22 is located on the back side of the mounting surface 13 a of the central mounting portion 13 and is formed in a ridge shape extending in parallel with the end bulging portion 21. A flat outer bottom surface 22 a is formed at the bottom of the ridge-shaped central bulging portion 22.

  Further, on the back surface side of the lid member 10, a ridge-shaped auxiliary bulge that extends along the second side edge 10 b of the lid member 10 and is connected to the end bulge portion 21 and the central bulge portion 22. A portion 23 is provided. A flat outer bottom surface 23 a is formed on the bottom portion of the ridge-shaped auxiliary bulging portion 23. A flat outer bottom surface 23 a is formed on the bottom portion of the ridge-shaped auxiliary bulging portion 23. The outer bottom surface 21a of the end bulging portion 21, the outer bottom surface 22a of the central bulging portion 22, and the outer bottom surface 23a of the auxiliary bulging portion 23 have the same height.

  A plurality of contact portions 24 projecting in a square frame shape are provided on the outer bottom surface 21 a of the end bulging portion 21 and the outer bottom surface 22 a of the central bulging portion 22. In the outer bottom surface 21 a of the end bulging portion 21, the contact portions 24 are respectively formed at positions slightly inside from both ends of the end bulging portion 21. In the outer bottom surface 22a of the central bulging portion 22, the abutting portions 24 are formed at positions slightly inside from both ends of the central bulging portion 22, and two are arranged in the central portion. It is formed in this way.

  Each contact portion 24 is formed such that the position of the tip thereof is the same height. Therefore, in the present embodiment in which the outer bottom surface 21a of the end bulging portion 21, the outer bottom surface 22a of the central bulging portion 22, and the outer bottom surface 23a of the auxiliary bulging portion 23 have the same height, each contact portion 24 is provided. The protruding height of is equal. And the protrusion height of each contact part 24 is set based on the protrusion height of the engagement protrusion 31 provided in the upper edge of the side wall of the container 30. Specifically, the protrusion height of each contact portion 24 is set to be higher than the protrusion height of the engagement protrusion 31 of the container 30 where the use of the lid member 10 of the present embodiment is assumed. .

  At both ends of the outer bottom surface 21 a of the end bulging portion 21, that is, at the four corners on the back surface side of the lid member 10, auxiliary contact portions 25 protruding in a lattice shape are provided. The protruding height of the auxiliary contact portion 25 from the outer bottom surface 21 a of the end bulging portion 21 is set based on the protruding height of the engaging protrusion 31 provided on the upper edge of the side wall of the container 30. Specifically, it is set to be equal to the difference between the protruding height of the engaging protrusion 31 of the container 30 and the protruding height of the abutting portion 24 where the use of the lid member 10 of the present embodiment is assumed. . Therefore, the protrusion height of the auxiliary contact portion 25 is lower than the protrusion height of the contact portion 24. A similar auxiliary contact portion 25 is provided from both ends of the outer bottom surface 22 a of the central bulging portion 22 to the outer bottom surface 23 a of the auxiliary bulging portion 23.

Next, the operation of this embodiment will be described.
FIG. 2 shows a case where six long rectangular box-shaped containers 30 are arranged in a vertical 2 × 3 horizontal direction on the surface side of the skid pallet P, and the lid member 10 of this embodiment is placed on the container 30. The positional relationship between the back surface of the member 10 and the container 30 is shown. At this time, the end bulging portion 21 of the lid member 10 is positioned on the short side wall of the container 30. Hereinafter, this state will be described.

  As shown in FIG. 4A, the contact portion 24 provided on the end bulge portion 21 contacts the upper edge of the side wall of the container 30. On the other hand, the engaging protrusion 31 provided on the upper edge of the side wall of the container 30 is accommodated in a gap S (accommodating portion) formed between the contact portions 24. Then, the outer bottom surface 21 a of the end bulging portion 21 is slightly lifted from the engaging protrusion 31. Further, at both end portions of the end bulging portion 21, that is, at the four corners on the back side of the lid member 10, the auxiliary contact portions 25 provided on the end bulging portion 21 are engaged with the container 30. It abuts on the part 31.

  Therefore, the skid pallet P is stacked on the surface side of the lid member 10 so that the leg portion is inserted into the end portion placement portion 12, and the leg portion is placed on the placement surface 12 a of the end portion placement portion 12. Then, the load is transmitted to the container 30 through the end bulging portion 21 located on the back side of the placement surface 12a. At this time, the load acts on a contact portion between the contact portion 24 of the end bulging portion 21 and the upper edge of the side wall of the container 30. On the other hand, since the engaging protrusion 31 accommodated in the gap S (accommodating portion) formed between the contact portions 24 is separated from the outer bottom surface 21a of the end bulging portion 21, it is engaged. The load does not act on the protrusion 31.

  The same applies to the central bulging portion 22 as shown in FIG. That is, the contact portion 24 provided in the central bulging portion 22 contacts the upper edge of the side wall of the container 30. On the other hand, the engaging protrusion 31 provided on the upper edge of the side wall of the container 30 is accommodated in a gap S (accommodating portion) formed between the contact portions 24. Then, the outer bottom surface 22 a of the central bulging portion 22 is slightly lifted from the engaging protrusion 31. Further, at both end portions of the central bulging portion 22, the auxiliary contact portion 25 provided on the central bulging portion 22 comes into contact with the engaging protrusion 31 of the container 30.

  Therefore, the skid pallets P are stacked on the surface side of the lid member 10 so that the legs are inserted into the central mounting portion 13, and the legs are mounted on the mounting surface 13 a of the central mounting portion 13. Then, the load is transmitted to the container 30 through the central bulging portion 22 located on the back surface side of the placement surface 13a. At this time, the load acts on a contact portion between the contact portion 24 of the central bulging portion 22 and the upper edge of the side wall of the container 30. On the other hand, since the engagement protrusion 31 accommodated in the clearance S (accommodation part) formed between the contact parts 24 is separated from the outer bottom surface 22a of the central bulging part 22, The load does not act on the portion 31.

  As described above, according to the lid member 10 of the present embodiment, the load transmitted to the container 30 through the lid member 10 acts on the upper edge of the side wall with which the abutting portion 24 of the lid member 10 abuts. It does not act on the engaging protrusion 31 accommodated in the portion (gap S). Thereby, it is suppressed that a big load acts on the engagement protrusion 31 of the container 30, and a deformation | transformation becomes difficult to occur in the engagement protrusion 31 of the container 30. FIG.

  3 shows four horizontally long rectangular box-like containers 30 arranged in a square shape on the surface side of the skid pallet P so that the short side wall and the long side wall of each container 30 are aligned. The positional relationship between the back surface of the lid member 10 and the container 30 when the lid member 10 of the present embodiment is placed on is shown.

  As shown in FIG. 4 (c), even in this case, the contact portion 24 provided on the end bulge portion 21 contacts the upper edge of the side wall of the container 30, and the upper edge of the side wall of the container 30. The engaging protrusions 31 provided in are accommodated in a gap S (accommodating part) formed between the contact parts 24. Therefore, similarly to the case of FIG. 2, a large load is suppressed from acting on the engagement protrusion 31 of the container 30, and the engagement protrusion 31 of the container 30 is hardly deformed.

Next, operational effects in the present embodiment will be described below.
(1) The square plate-like lid member 10 used on the container 30 placed on the surface side of the skid pallet P includes a placement surface 12a for placing the legs of the skid pallet P, and A placement surface 13a is provided on the front side. An accommodation portion (gap S) for accommodating the engagement protrusion 31 provided on the upper edge of the side wall of the container 30 at a portion located on the back surface side of the placement surface 12a and the placement surface 13a, and the container An abutting portion 24 for abutting on the upper edge of the side wall 30 is provided.

  According to the above configuration, the load is suppressed from concentrating on the engaging protrusion 31 of the container 30, and the engaging protrusion 31 is hardly deformed. As a result, it is possible to suitably avoid a situation in which the engagement protrusion 31 is excessively deformed and the container 30 becomes unusable as a stacked container.

  Moreover, since the contact part 24 is provided in the back surface side of the mounting surface 12a and the mounting surface 13a for mounting the leg part of the skid pallet P, the load which acts on the cover member 10 from the skid pallet P is applied. It can be conveyed to the container 30 linearly up and down. Thereby, the mounting state of the container 30 and the lid member 10 is stabilized. Further, deformation of the lid member 10 can also be suppressed.

  (2) A groove-shaped end placement portion 12 and a center placement portion 13 into which the tip ends of the legs of the skid pallet P are inserted are provided on the surface side of the lid member 10. The inner bottom surfaces of the end placement portion 12 and the central placement portion 13 are set as placement surfaces 12a and 13a.

  According to the above configuration, the tip of the leg portion of the skid pallet P is engaged with the end portion mounting portion 12 and the central mounting portion 13, so that the stability of the skid pallet P on the lid member 10 is enhanced.

  (3) On the back surface side of the lid member 10, there is an auxiliary for contacting the engaging protrusions 31 of the container 30 at both ends of the outer bottom surface 21 a of the end bulging portion 21, which are parts located at the four corners. A contact portion 25 is provided.

  According to the above configuration, the contact portions with the container 30 are secured at the four corners of the lid member 10. Thereby, the wobbling of the lid member 10 on the container 30 can be suppressed. Of the engaging protrusions 31 of the container 30 arranged on the skid pallet P, the engaging protrusions 31 located at the four corners of the container 30 come into contact with the back surface of the lid member 10. However, since the contact portion 24 of the lid member 10 is in contact with the upper edge of the side wall of the container 30, the load is not concentrated only on the engagement protrusion 31.

  (4) Auxiliary contact portions 25 for contacting the engaging protrusions 31 of the container 30 are also provided at both end portions of the outer bottom surface 22 a of the central bulging portion 22. According to the said structure, the effect of said (3) can further be improved.

(5) At both end portions of the outer edge portion 11 on the second side edge 10b side, protrusion-shaped locking portions 14 projecting to the surface side (upward) are provided.
According to the above configuration, as shown in FIG. 5, when the skid pallet P, the container 30, and the lid member 10 are fixed by winding the belt 41, the locking portion 14 provided on the surface side of the lid member 10. When the belt 41 is hooked on the belt member, the belt member is prevented from slipping off (disengaging) from the lid member 10.

  In addition, this embodiment can also be changed and embodied as follows. Moreover, it is also possible to change the said embodiment like the structure of the combination of the following modification example mutually.

  In the above embodiment, the contact portion 24 is formed as a quadrangular frame-like protruding portion, but the shape of the contact portion 24 is not particularly limited. For example, it may be formed as a projecting portion having a ring shape or a polygonal frame shape other than a square, or may be formed as a projecting portion having a solid block shape.

  In the above embodiment, the outer bottom surface 21a of the end bulging portion 21, the outer bottom surface 22a of the central bulging portion 22, and the outer bottom surface 23a of the auxiliary bulging portion 23 have the same height. Any one or all of them may be formed at different heights. In this case, the protruding height of each contact portion 24 is set so that the height position of the tip of each contact portion 24 becomes the same height. And about the contact part 24 with the lowest protrusion height, it sets so that it may become higher than the protrusion height of the engagement protrusion 31 of the container 30 in which use of the cover member 10 of this embodiment is assumed.

  In the above embodiment, the protrusion height of the contact portion 24 is set to be higher than the protrusion height of the engagement protrusion 31 of the container 30, but the same height as the protrusion height of the engagement protrusion 31. You may set it.

  In the above embodiment, the housing portion (gap S) is provided between the adjacent contact portions 24 by providing the contact portion 24 protruding from the outer bottom surface 21a with respect to the outer bottom surface 21a of the end bulge portion 21. However, the contact part 24 and the accommodating part may be a part that relatively protrudes and a part that is relatively recessed in the thickness direction of the lid member 10. For example, the outer bottom surface 21a of the end bulging portion 21 is provided with a recessed portion that is partially recessed as a housing portion, and the portion of the outer bottom surface 21a that projects relatively to the housing portion is used as the contact portion. You can also. The same applies to the contact portion 24 and the accommodating portion provided on the outer bottom surface 22a of the central bulging portion 22.

  The position where the contact portion 24 is formed on the back surface side of the lid member 10 is located on the back surface side of the mounting surface (mounting surface 12a, mounting surface 13a) for mounting the leg portion of the skid pallet P. If it is the range of the site | part to do, it will not specifically limit. What is necessary is just to set suitably according to the formation position of the engagement protrusion 31 of the container 30 with which the use of the cover member 10 of this embodiment is assumed.

  In the above embodiment, on the back surface side of the lid member 10, only the range of the portion located on the back surface side of the mounting surface (mounting surfaces 12a, 13a) for mounting the leg portion of the skid pallet P is contacted. Although the portion 24 and the accommodating portion are provided, the abutting portion 24 and the accommodating portion may be provided at a portion other than the same range. For example, you may provide the contact part 24 and the accommodating part in the outer bottom face 23a of the auxiliary bulging part 23. FIG.

  In the above embodiment, the abutting portion 24 and the accommodating portion are provided in the end bulging portion 21 and the central bulging portion 22, but the shape of the portion where the abutting portion 24 and the accommodating portion are provided is particularly limited. It is not a thing. For example, the entire back surface of the lid member 10 may be formed in a flat shape, and only the contact portion 24 may protrude.

The shape of the auxiliary contact portion 25 can be changed as appropriate as with the contact portion 24.
In the above embodiment, the protrusion height of the auxiliary contact portion 25 is the same as the protrusion height of the engagement protrusion 31 of the container 30 where the use of the lid member 10 of the present embodiment is assumed, and the protrusion height of the contact portion 24. Thus, the auxiliary contact portion 25 is brought into contact with the engagement protrusion 31 of the container 30. Instead of this configuration, the protrusion height of the auxiliary contact portion 25 is set such that the protrusion height of the engagement protrusion 31 of the container 30 where the cover member 10 of the present embodiment is assumed to be used, and the protrusion height of the contact portion 24. You may set so that it may become smaller than the difference. In this case, normally, the auxiliary contact portions 25 provided at the four corners of the lid member 10 do not contact the engagement protrusions 31 of the container 30, but when the lid member 10 wobbles on the container 30. The auxiliary abutment portion 25 abuts on the engagement protrusion 31 of the container 30 and further wobble is suppressed.

  One or both of the auxiliary contact portion 25 provided on the outer bottom surface 21a of the end bulge portion 21 and the auxiliary contact portion 25 provided at both ends of the outer bottom surface 22a of the central bulge portion 22 are omitted. May be.

  The placement unit (the end placement unit 12 and the central placement unit 13) is not limited to the groove-shaped configuration as long as the stability of the mounted skid pallet P can be improved. Instead, a known configuration used for a conventional lid member can be employed. For example, the mounting part may be a part to which a slip prevention member such as rubber or a rough sheet is attached.

-The placement part may be omitted. In this case, it is preferable to provide a display unit that indicates the position of the mounting surfaces (mounting surfaces 12 a and 13 a) on the surface side of the lid member 10.
Next, the technical idea that can be grasped from the embodiment and the modified examples will be described.

  (A) The lid in which a gap as the accommodating portion is formed between the adjacent abutting portions by providing a protruding portion as the abutting portion at a portion located on the back side of the mounting surface. Element.

  (B) The lid member having a portion other than the housing portion in the same portion as the contact portion by providing a concave portion as the housing portion in a portion located on the back side of the placement surface.

  P ... skid pallet, S ... gap (accommodating portion), 10, 40 ... lid member, 12 ... end placement portion, 12a, 13a ... placement surface, 13 ... center placement portion, 24 ... contact portion, 25 ... auxiliary contact part, 30 ... container, 31 ... engagement protrusion.

Claims (3)

A rectangular plate-like lid member used on a container placed on the surface side of the skid pallet,
When the skid pallet is stacked on the lid member, a placement surface for placing the leg portion of the skid pallet is provided on the surface side,
The portion located on the back side of the mounting surface described above includes a receiving portion for receiving an engaging protrusion provided on an upper edge of the side wall of the container to be engaged when the containers are stacked, and a side wall of the container A lid member provided with a contact portion for contacting the upper edge. On the surface side, a groove-shaped placement part into which the tip of the leg part of the skid pallet is inserted is provided,
The lid member according to claim 1, wherein the placement surface is a bottom surface of the placement portion.   A portion located on the back side of the mounting surface, wherein the portion located at the four corners of the lid member is provided with auxiliary contact portions for contacting the engagement protrusions. The lid member according to claim 1 or 2.