JP2013014378A5 - - Google Patents

Description

Traditionally, paper cardboard box using superior paper cardboard sheet processability lightweight is used as the transport container or storage container for the article.

However, paper cardboard boxes have low water resistance and low durability, so in most cases they can only be used for single-use applications, and even when reused, the maximum is several times. , the paper dust or the like wear of the cutting edge there is a problem such that that turns out scattered around or adhering to the stored articles occurs.

Moreover, traditional, grooves having a shape capable of fitting the Pradhan sheet cutting end of the box body of Pradhan container (hereinafter, "fitting groove" hereinafter.) A frame member having a (hereinafter, referred to as "fitting frame".) In the cross section perpendicular to the longitudinal direction along the insertion groove (hereinafter, referred to as “transverse section”), the fitting frame uses a fitting frame in which the fitting groove portion is substantially U-shaped. of the fitting groove to thereby fitting the Pradhan container top edge, by joining its fitting frame and the upper edge with rivets, by attaching a fitting frame Pradhan container on the edge, the Pradhan container upper edge The cutting surface is protected.

In addition, as a means for joining the parts where the surfaces of the plastic members are in contact with each other, there is also a method of bonding using an adhesive, but in bonding of plastic surfaces with such an adhesive, Conventionally , there is a problem that the adhesive force is relatively weak, and therefore, when the container is lifted, such as adhesion between the upper side edge of the Pradan container and the fitting frame attached thereto, as described above. In the case where a strong force acts in a direction parallel to the adhesive surface, which is a direction in which the adhesive surface is relatively easily peeled between the upper edge of the container side surface and the fitting frame attached thereto, and the adhesive strength is reduced. When a sufficient adhesion area cannot be secured, a joining method using rivets is usually performed.

Moreover, in the conventional Pradan container, since the side wall material is a structure of only the Pradan sheet , compared to other metal and wooden containers , the Pradan container containing the contents is stacked from the top. There is a problem that the load resistance when a load is applied is relatively small.

Because there are problems as described above, traditional, Pradhan container to the use or reuse repeating reuse rather than disposable with the foreign matter is large environment is not suitable for such applications that require rinsing There was a problem.

The fitting frame is attached to the cut end portion of the box body by fitting the Pradan sheet cut end portion of the Pradan container box into the fitting groove provided in the fitting frame. , Projecting into any shape in any direction for any purpose, including but not limited to forming grips for gripping, forming reinforcing ribs to increase strength, and forming flanges for joining with other members It was re Bed shaped projections (hereinafter, referred to as "flange".) can be a provided shape (see FIGS. 3 and 4).

The fitting frame used for the Pradan container box is attached to the upper edge portion of the side Pradan sheet, and has a fitting frame (hereinafter referred to as “upper”) having a single insertion groove that opens vertically downward with respect to the upper edge portion. Edge frame "), a fitting frame (hereinafter referred to as" lower edge frame " ) attached to the lower edge portion of the side pladan sheet and having a single insertion groove that opens vertically upward with respect to the lower edge portion. ) A fitting frame (hereinafter referred to as a “bottom edge frame ” ) that is attached to the peripheral edge of the bottom Pradan sheet and has a single insertion groove that opens perpendicularly to the peripheral edge. Attached to the longitudinal ridge line part formed by abutting the side pladan sheets or the lateral ridge line part formed by abutting the adjacent bottom surface platen sheet and the side surface platen sheet. Fitting a frame having two of fitting insertion grooves which open in the direction of Pradhan sheet, respectively (hereinafter, referred to as "ridge frame".), The upper end or lower end of the longitudinal ridges formed by Tsukiawashi the side Pradhan sheet between the adjacent It is attached to the corner part of each part, and when viewed from the upper side formed over an arbitrary length on each edge part, it has an almost L shape and opens vertically downward or vertically upward with respect to each edge part. A fitting frame having a single L-shaped fitting groove (hereinafter referred to as “L-shaped solid corner frame”), attached to a corner portion of a separated side surface platen sheet or bottom surface platen sheet, and starting from the corner. When viewed from the upper side formed over an arbitrary length on each edge portion, it has an almost L shape and is perpendicular to each edge portion. One vertical ridge line formed by fitting a fitting frame having a single L-shaped fitting groove (hereinafter referred to as “L-shaped planar corner frame”) and / or adjacent side surface platen sheets. It is attached to a triangular corner where three ridge lines are joined by the two lateral ridge lines formed by abutting the side pladan sheet and the bottom pladan sheet adjacent to each other. It is not only used as a fitting frame (hereinafter referred to as a “triangular corner frame”) having an insertion groove that opens in the direction of the three Pradan sheets to be abutted, and has either side surface Pradan sheet. Alternatively, a rib-shaped fitting frame that is attached to a plane dividing portion formed by arbitrarily dividing the bottom surface platen sheet and rejoining the divided portions. Beam (hereinafter referred to as "rib frame". In addition, the number of the above-mentioned insertion grooves corresponds to the end of the Pradan sheet inserted therein, for example, the end of the Pradan sheet inserted therein has a sawtooth shape. In such a case, or when the end portions of the adjacent Pradan sheets are almost continuous, a plurality of insertion grooves are intermittently formed in a chain line shape.

When bonding the fitting frame and the Pradan sheet cutting edge with an adhesive as described above, the bond strength is further improved according to the nature and strength of the material of the adhesive, the fitting frame and the Pradan sheet. Therefore , after inserting the Pradan sheet cutting end portion into the fitting groove provided in the fitting frame, the pressure within a range that does not damage or alter the adhesive, the Pradan sheet and / or the fitting frame is appropriately set. It can also be added from the outside of the fitting frame to the portion where the Pradan sheet cut end is fitted.

The plastic rivet is penetrated into the rivet perforation opened as described above so that both ends protrude from the both ends of the rivet perforation by an arbitrary length, and the surface of the hemispherical depression of the heating pressing tool is made of the plastic rivet material. Heated until reaching the melting point, the surface of the hemispherical depression of the heated heating tool was brought into contact with one end of the plastic rivet that penetrated, and heated while supporting and fixing the other end of the plastic rivet By softening one end of the plastic rivet in the axial direction by the surface of the hemispherical depression, and further pressing the softened plastic rivet end against the fitting frame surface around the rivet perforation, The end of the soft plastic rivet follows the shape of a hemispherical depression and is smooth and uneven With molded hemispherical rivet head having a free curved surface, melting the rivet head back surface at a portion hemispherical shape molded the rear surface portion of the rivet head of the plastic rivet contacts the mating surface of the frame to the mating surface of the frame after wearing, joining the plug Dan sheet edge which is fitted into the fitting groove and the fitting frame by cooling to remove the heat pressing tool (see FIG. 7).

In addition, according to the method of the present invention, as described above, the plastic rivet is heat-molded into a smooth hemispherical rivet head , so that the rivet after joining using a conventional rivet has an angular head. Unlike the joining method having the above, there is an advantage that foreign matter is not caught or stayed on the rivet head and can be cleaned relatively easily (see FIG. 7).

When the ridge line frame is attached to the vertical ridge line part of the Pradan container box as described above, two adjacent side surface platen sheets forming the ridge line part are inserted into each of the ridge line frames . fitting provided insertion grooves, but fitting groove of two which is provided as such, the two sheets of Pradhan sheet is fitted to the fitting groove, each matching the opening direction of each of the fitting groove so as to have a predetermined angle Provide as follows.

Among the above-mentioned problems, one method as a means for solving the problem of the present invention that easily and flexibly changes the shape of the Pradan container according to the customer's request is that the box size and the cross-sectional size of the required Pradan container are the same. A body member (hereinafter referred to as “base body member”) having a cylindrical shape including but not limited to rectangular, polygonal, and circular cross-sectional shapes with dimensions but without a bottom surface is created, and the base body A box member having a bottom surface (hereinafter referred to as a “box body bottom member”) having an inner dimension approximately the same as the outer dimension of the member but having a lower height than the body member is created separately below the base body member. Insert the edge from the upper end opening of the box bottom member to an arbitrary depth, and include the adhesive and plastic rivets at any position where the both sides of the base body member and the box bottom member overlap. Not limited joints In that to form the Pradhan container by bonding.

Among the above problems, another method as a solving means according to the present invention for easily and flexibly changing the shape of the Pradan container according to the customer's request is to create the above-mentioned basic body member and box body bottom member. In addition, another body member having the same cross-sectional shape as that of the basic body member but having an arbitrary height (hereinafter referred to as “body body for addition”) is created, and further, the prada sheet cutting edge is formed from both above and below. rib frame having two fitting groove part a can fitted respectively (hereinafter, "relay frame" hereinafter) and, respectively Re its ends corners of the upper and ridge lines formed by adjacent sides Pradhan sheet Tsukiawashi from both the lower fitting After creating a rib frame (hereinafter referred to as “joint corner frame”) having two fitting grooves that can be formed (see FIG. 3), the lower edge of the base body member is the bottom of the box Insert from the upper end opening of the material to any depth, and join the part where the both sides of the base body member and the box bottom member overlap at any position with joining means including but not limited to adhesives and plastic rivets The upper edge of the base body member is inserted into the downward insertion groove of the intermediate frame, and the insertion portion of the base body member and the intermediate frame are joined by a joining means including but not limited to adhesive and plastic rivets, and The lower edge portion of the trunk member for fitting is inserted into the upward fitting groove of the middle frame and the corner corner frame, and the fitting portion of the trunk member and the middle frame and the middle corner frame include an adhesive and a plastic rivet. However, the height using the intermediate frame and the fuselage body by joining with the joining means is not limited to it While assembling the splicing Tasa the Pradhan container (see FIG. 7), inserted for each member described above, the fitting work procedures such as joint can be arbitrarily determined depending on the convenience of the process.

When forming the Pradhan container inverted trapezoidal shape as described above in accordance with the present invention, ridgelines frame and the triangular corner frame employed for the bottom, side and formed to discretionary margin of the bottom surface Pradhan sheet and side Pradhan sheet In order to have two insertion grooves into which both of the cut end portions forming one side of the bottom side are inserted, and to make the side pladan sheet have an upward opening angle with respect to the bottom pladan sheet , two of the fitting angle between the opening direction of the grooves are bottom and by side you match the angle opened upwardly to form the sea urchin forms thereof, and the cut end of the bottom Pradhan sheet insertion groove of the two trapezoid The inverted trapezoidal Pradan container is formed by inserting the cut end portions of the side Pradan sheet cut into two.

Embodiments of the present invention will be described below with reference to an embodiment of manufacturing a Pradan container in which fitting frames are attached to the upper and lower ends of a side surface platen sheet of a Pradan container using an adhesive and rivets in accordance with the present invention. .

The pladan container 1 manufactured in the present embodiment is a container made of a box body surrounded by a bottom surface platen sheet 4 and four side surface platen sheets 3 , having no lid on the top surface, and having a rectangular cross-sectional shape ( (See FIG. 1).

As a material of the peripheral wall of the Pradan container 1 of the present embodiment, a Pradan sheet is used for the bottom surface and all the side surfaces according to the present invention.

In the present embodiment, using the conventional technique, each side surface platen sheet 3 constituting the side wall of the platen container 1 is bent at the boundary between the adjacent side surface platen sheets 3 and / or the adjacent side surface platen sheet 3 is folded. The cylindrical body part 2 of the prada container 1 is created by joining along the abutted boundary (see FIGS. 1 and 2).

In the production of the body portion 2 according to the above-described prior art, the boundary portions of the side surface pladan sheets 3 adjacent to each other do not expose the cut end surface of the side surface platen sheet 3 , and foreign matters such as moisture are exposed from the boundary line portion to the side surface pladan sheet 3. Bending and / or joining is performed using a method that does not enter the internal voids (for example, see Reference Document 3 above).

Apart from the body part 2 described above, in the present embodiment, four upper edge frames to be attached to each of the upper side edge parts of the four side surfaces where the cut end faces of the side surface platen sheet 3 forming the body part 2 are exposed. 5 is produced by an injection molding method using the same plastic material as the side pladan sheet 3 (see FIG. 2).

Each of the upper edge frame 5 described above, so that it can fit a side Pradhan sheet 3 the upper end of the box body from below, the fitting groove 10 of approximately the same width as the thickness of the side Pradhan sheet 3 the entire length of the upper edge frame 5 It is provided along the length direction.

In the present embodiment, the length of each of the upper edge frames 5 described above is a length arbitrarily determined from the width of the side surface to be inserted into each of the four side surfaces (hereinafter referred to as “corner fitting allowance”). It is called “long”).

Apart from the body part 2 and the upper edge frame 5 described above, in the present embodiment, each of the corner parts formed at the upper end part of the ridge line formed by abutting the adjacent side surface pladan sheets 3 from the respective corners. Four L-shaped corner frames (L ) that extend to the upper edge of each side by approximately half the length of the corner fitting allowance of each side and have an L-shape that covers the corner when viewed from above. A three-dimensional corner frame) 6 is formed by an injection molding method using the same plastic material as the side pladan sheet 3 (see FIG. 2).

Each of the above-mentioned L-shaped corner frames 6 is a groove having a width substantially the same as the thickness of the side pladan sheet 3 so that the upper edge corner portion of the side pladan sheet 3 used for the side of the box can be inserted from below. the grooves 10, I over the entire length of the L-shaped corner frame 6 of that provided along its length direction of the shape.

Body portion 2 described above, apart from the upper edge frame 5, L-shaped corner frame 6, in this embodiment, cut end surface of the side Pradhan sheet 3 and the bottom Pradhan sheet 4 forming the body portion 2 is exposed Four ridge line frames 7 to be attached to each of the four ridge lines surrounding the bottom surface composed of the lower side edge of the side surface and the periphery of the bottom surface are created by the injection molding method using the same plastic material as the side surface platen sheet 3 and the bottom surface platen sheet 4. (See FIG. 2).

Each ridge frame 7 described above, a side Pradhan sheet 3 and the bottom Pradhan sheet 4 adjacent the box body, the side Pradhan sheet 3 from above, as the bottom Pradhan sheet 4 can be respectively inserted from the lateral direction, the side surface Two insertion grooves 10 , which are substantially the same width as the thickness of the prada sheet 3 and the bottom pladan sheet 4 , are opened upward and laterally along the length direction of the ridge line frame 7. Provide.

In the present embodiment, each of the above-mentioned ridgeline frames 7 has a length corresponding to each peripheral length of the bottom surface platen sheet 4 , but only a corner fitting length arbitrarily determined from each peripheral length. Use a short length.

In the present embodiment, apart from the body part 2 , the upper edge frame 5 , the L-shaped corner frame 6 , and the edge line frame 7 , in the present embodiment, the two adjacent side surface platen sheets 3 and the bottom surface platen sheet 4 abut each other to form the bottom surface four corners. For each of the triangular corners formed on the side, the lower side edge of each side adjacent to the corner extends by about half the corner fitting margin of each side, and the height is the ridgeline frame described above. Four triangular corner frames 8 having the same dimensions as the height of 7 are formed by an injection molding method using the same plastic material as the side pladan sheet 3 and the bottom pladan sheet 4 (see FIG. 2).

Each of the triangular corner frames 8 described above is an insertion groove 10 that is a groove having a width substantially the same as the thickness of the side surface pladan sheet 3 so that the lower edge corner portion of the side surface pladan sheet 3 of the body portion 2 can be inserted from above. Is provided in a state where the triangular corner frame 8 is opened upward along the shape in the length direction of the triangular corner frame 8 , and the bottom platen serving as the bottom of the box of the platen container 1 produced in the present embodiment. The insertion groove 10 , which is a groove having a width substantially the same as the thickness of the bottom surface platen sheet 4 , is inserted in the longitudinal direction of the triangular corner frame 8 so that the corner end of the sheet 4 can be inserted from the lateral direction. It is provided in a state opened laterally along the shape.

In the present embodiment, apart from the body part 2 , the upper edge frame 5 , the L-shaped corner frame 6 , the ridge line frame 7 , and the triangular corner frame 8 , in the present embodiment, the bottom body Pradan sheet 4 serving as the bottom surface of the Pradan container 1 is used as its body. its series of bottom Pradhan fitting groove 10 of the seat 4 for fitting to form a case where the side surface Pradhan sheet 3 parts 2 and its bottom Pradhan sheet 4 fitted with a ridge frame 7 and the triangular corner frame 8 above the ridge portion formed by Tsukiawashi It is created by cutting so as to have a dimension that matches the internal dimension (see FIG. 2).

Trunk body 2 described above, the upper edge frame 5, L-shaped corner frame 6, ridge frame 7, the triangular corner frame, separately from the bottom Pradhan sheet 4, in this embodiment, the side surface Pradhan sheet 3 used in this embodiment And the cylindrical plastic rivet 11 is created using the same plastic material as the bottom pladan sheet 4 (see FIG. 7).

The length of the above-mentioned plastic rivet 11 is in a state where the above-mentioned Pradan sheet end portions are fitted in the respective fitting grooves 10 of the above-mentioned upper edge frame 5 , L-shaped corner frame 6 , ridge line frame 7 and triangular corner frame 8 . its upper edge frame 5, L-shaped corner frame 6, ridge frame 7 and the plastic rivets 11 from the respective one side of the other side of the triangular corner frame 8 through only the fitting groove length further arbitrarily set The length is projected from both sides of 10 (see FIG. 7).

When an adhesive is used for the inner surface of the fitting groove 10 provided in each of the upper edge frame 5 , the L-shaped corner frame 6 , the ridge line frame 7, and the triangular corner frame 8 created as described above. In order to increase the adhesive force, a corona discharge treatment is performed.

Subsequently, an adhesive using the same material as that of the side surface platen sheet 3 and the bottom surface platen sheet 4 for the inner surface of each of the insertion grooves 10 subjected to the corona discharge treatment as described above and the insertion portion of the end of the prada sheet to be inserted therein. Apply.

Subsequently, the upper edge portions of the side surface pladan sheet 3 at the four corners of the upper edge of the body portion 2 are respectively inserted into the insertion grooves 10 of the four L-shaped corner frames 6 to which the adhesive is applied. A pressure is applied so as to sandwich both side surfaces of the character corner frame 6 to perform adhesion with an adhesive.

Subsequently, the ends of each L-shaped corner frame 6 attached to the four corners of the body 2 the upper edge as described above, while butted ends of the upper edge frame 5, respectively, of the body portion 2 side Pradhan and fitting the upper edge of the sheet 3 into the fitting groove 10 of the respective upper edge frame 5 performs adhesive bonding by applying a pressure so as to sandwich both side surfaces of the upper edge frame 5.

Subsequently, fitted corners of the four corners of the above-mentioned bottom Pradhan sheet 4 into the fitting groove 10 which is open in the transverse direction of the respective triangular corner frame 8, the triangular corner frame placed on top of the fitting has been Pradhan sheet 8 Adhesive with an adhesive is performed by applying pressure so as to sandwich the flange portion.

Subsequently, the ends of each of the triangular corner frame 8 attached to the four corners of the bottom Pradhan sheet 4 as described above, while butted ends of the ridge frames 7 respectively, the ends of the bottom Pradhan sheet 4 sides respectively fitted into the fitting groove 10 which is open laterally of the ridge frame 7, adhesive bonding by applying a pressure so as to sandwich the flange portion of the ridge line frame 7 disposed in its fitted to upper bottom Pradhan sheet 4 I do.

Subsequently, the body part 2 where the edge frame 5 on the above L-shaped corner frame 6 mounted side Menpu Radanshito 3 bottom, the ridge line frame 7 and the triangular corner frame 8 attached to the bottom surface Pradhan sheet 4 above It inserts into the insertion groove | channel 10 opened upwards simultaneously, applies pressure so that the both sides | surfaces of the triangular corner frame 8 may be pinched | interposed, and it adhere | attaches with an adhesive agent.

Subsequently, a rivet perforation 12 for inserting the plastic rivet 11 is opened at an arbitrary position on each side of the above-described upper edge frame 5 , L-shaped corner frame 6 , ridge line frame 7 and triangular corner frame 8. The size of the hole of the rivet perforation 12 is set such that the plastic rivet 11 has some resistance when passing through the rivet perforation 12 (see FIG. 7).

A plastic rivet 11 is inserted into each of the rivet perforations 12 opened as described above from one side. The insertion depth is such that a part of the plastic rivet 11 remains on the inserted side, and the other side also has an insertion depth. It will be in the state which penetrated and one part protruded (refer to Drawing 7).

In the present embodiment, there is separately provided a heating pressing tool that has a hemispherical depression whose diameter is larger than the thickness of the plastic rivet 11 described above, and that can heat the surface of the hemispherical depression, and the surface of the hemispherical depression is the plastic rivet. Heat to a temperature at which 11 melts.

The upper edge frame 5 , the L-shaped corner frame 6 , the ridge line frame 7, or the portion of the hemispherical depression of the heated pressing tool heated as described above is inserted into the rivet perforation 12 and attached as described above. One of the plastic rivets 11 protruding slightly from the surface of the triangular corner frame 8 is brought into contact with the tip of the plastic rivet 11 and pressed while fixing the position while pressing the other tip. Softened or melted, the softened or melted plastic rivet 11 tip is formed into a hemispherical rivet head 13 following the hemispherical depression of the heated pressing tool, and its upper edge frame 5 , L-shaped corner frame 6 , ridgeline The hemispherical rivet that is in contact with the surface around the rivet perforations 12 of the frame 7 or the triangular corner frame 8 After the lower surface of the flange of the head 13 is fused to the surface around the rivet perforations 12 , the heated pressing tool is removed and cooled to solidify (see FIG. 7).

Thermoforming of plastic rivets 11 tip as described above, by applying the tip of all plastic rivets 11 inserted work fused and cooled and solidified, Pradhan container 1 in this embodiment is completed.

As described above, in the Pradan container 1 manufactured according to the present invention, the cut end surfaces exposed at the upper and lower edges of the Pradan sheet on the side of the box are fitted with the adhesive according to the present invention. Since the fitting frame and the upper edge of the Pradan sheet are firmly joined using the plastic rivet 11 according to the present invention with the rivet perforation 12 sealed, Sealing performance to prevent the intrusion of foreign substances such as moisture from the upper or lower edge of the Pradan sheet into the internal space of the Pradan sheet is improved. Even if a strong upward force is applied to the fitting frame part, the attached fitting frame peels off at the adhesive part with the upper edge of the Pradan sheet. It is Pradhan container 1 the bonding strength is improved so as not to obtain.

According to the present invention, in addition to the use of the conventional Pradan container 1 , there is an effect that it can be washed and reused to expand the use, and the degree of freedom in designing the size is improved, thereby promoting the spread. There is an effect, and therefore the present invention can be utilized in industry.

1 Pradhan container 2 torso portion 3 side Pradhan sheet 4 bottom Pradhan sheet 5 upper, lower edge, bottom frame 6 L-shaped corner frame (L-shaped three-dimensional corner frame)
7 ridge frame 8 triangular corner frame 9 relay frame 10 fitting groove 11 plastic rivets 12 rivet perforated 13 bottom plate for rivet heads 14 Stacking

Claims (4)

A box made of Pradan sheet,
An upper edge frame fitted to the entire circumference of the opening edge of the box;
Attached to the back surface of the bottom platen sheet constituting the box body and positioned in the other box body when stacked on another box body, the side slide of the box body hits the upper edge frame of the other box body With plastic plate to prevent,
Having plastic container. Having a ridge line frame provided with two grooves formed in directions orthogonal to each other;
The lower edge portion of the side surface platen sheet and the peripheral edge portion of the bottom surface platean sheet constituting the box body are respectively fitted into the grooves of the ridge line frame, and / or the side edge portions of the two side surface platen sheets are The plastic container according to claim 1, wherein the box is formed by being fitted into the groove of the ridge line frame . The plastic container according to claim 2, wherein the upper edge frame, the ridge line frame, and the plastic plate are joined to the box by a plastic rivet . The plastic container according to claim 2 or 3, wherein a flange extends in a horizontal direction at an upper end portion of the upper edge frame and a lower end portion of the ridge line frame .