JP2003285836A - Spring joint and packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box which can be easily assembled and disassembled and repeatedly reused, and a joint member usable to packaging boxes of any size. <P>SOLUTION: The spring joint comprises a central body formed by coiling a wire rod, and arms each of which is extended from each end of the central body, stretched further to form a sloped linear part, bent toward the center at the end of the sloped part, and extended outward again to form a circular hook at the front extremity of the arm. The packaging box is assembled using the above spring joints. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing box used for packing and transporting materials, and more particularly to a packing box and a joint member which can be easily assembled and disassembled and can be used any number of times. .

[0002]

2. Description of the Related Art Conventionally, when packing and transporting materials,
A box used as a box was used while fixing the wall boards, which were laminated with wood boards, with nails or the like. In particular, a large number of nails are struck in the packaging of heavy objects so that the wooden box is not damaged during transportation.

Therefore, when the packaging box with nails is dismantled, it is difficult to reuse because the wooden box is damaged because the box is pry open by a bar or the like.

Recently, there has been known a method of making a packing box by using an elastic L-shaped leaf spring-shaped assembly member without using nails when assembling the box. However, in this method, since the box is assembled with the L-shaped plate spring-like sheet metal having an angle slightly smaller than 90 degrees, the force for tightening the adjacent wall plates is almost constant, which is used for assembling the packaging box of constant strength. Has been done. Therefore, a plurality of types of leaf spring-shaped assembly members corresponding to the size of the packaging box are required, and there is a problem in versatility.

[0005]

Recently, environmental problems have become more severe, and it is required to repeatedly reuse a packaging box for transportation. Also, due to work efficiency, there is a demand for a transport packaging box that can be easily assembled and disassembled. In addition, the weight of the package is also increasing because the transportation efficiency is increased.

An object of the present invention is to provide a packaging box which can be easily assembled and disassembled and which can be reused repeatedly, and a joint member which can be used regardless of the size of the packaging box.

[0007]

In order to achieve the above object, the invention according to claim 1 is a joint member for assembling a packing box by combining a plurality of wooden frames, which is formed by winding a wire into a coil shape. It is characterized in that it has a central body portion and an arm portion that extends outward from the central body portion, and that an annular hook portion is formed at the tip of the arm portion.

According to the first aspect of the present invention having the above-mentioned structure, a lightweight and durable joint member is used for assembling the packaging box with the joint member composed of the wire material, and the assembling / disassembling is easy. In addition, a packaging box that can be repeatedly used can be obtained.

According to a second aspect of the present invention, the hook portion is
It is characterized in that it has a bent portion for fastening the wooden frames together, has a guiding function at the time of mounting, and further serves as an operating portion of a removing jig when the wooden frame is once mounted and then removed.

According to the second aspect of the present invention having the above structure, when the joint member is mounted, it can be mounted easily and securely at a predetermined position. Even if the tightening force is strong, the jig can be easily removed by inserting the jig into the annular hook.

According to a third aspect of the present invention, the arm portion is provided with a skewed portion that is bent from the winding end portions at both ends of the coil-shaped central body portion toward the central portion side, and the arm portions at both ends approach each other at the outside. It is characterized in that the arms formed at both ends form an angle of 90 degrees or less in the rotational direction.

According to the third aspect of the present invention having the above-mentioned structure, in order to increase the tightening force, even if the assembly member has a large number of coils, the arms extending from both ends are obliquely moved toward each other. Since it is configured to extend outward after being made to move, it is possible to reduce the moment generated by both arms when both arms are attached to the box body, and the packaging box can be stably constructed.

The invention according to claim 4 is characterized in that the angle formed by the arm portions at both ends in the rotational direction is 60 ° ± 10 °.

According to the invention of claim 4 having the above-mentioned structure, the assembly member originally having an angle of about 60 degrees is mounted by being pushed in, so that the tightening force can be increased and the heavy load It is possible to configure a packaging box that can also be transported.

The invention according to claim 5 is a packaging box which is formed by combining with a spring joint according to any one of claims 1 to 4 and combining a wooden frame having a groove for mounting the spring joint. It is characterized by being.

According to the invention having the above-mentioned structure, the spring joint is attached to the groove portion formed at the predetermined position of the wooden frame, whereby the packaging box which can be easily assembled can be obtained. .

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a packaging box to which a spring joint according to the present invention is attached will be described below with reference to FIG.
From now on, it will be explained based on FIG.

FIG. 1 shows a spring joint which is an assembly member according to the present invention, (a) is a front view and (b) is a front view.
Is a plan view. FIG. 2 is a perspective view showing a corner portion of a packaging box in which the spring joint according to the present invention is mounted. FIG. 3 is a perspective view showing a grooved portion formed at a corner portion of the packaging box. FIG. 4 shows a packaging box according to the present invention, (a) is a perspective view showing a large packaging box for heavy objects, and (b) is a perspective view showing a packaging box for relatively lightweight objects. FIG. 5 is a schematic explanatory view showing an assembling procedure of the packaging box according to the present invention.

In a spring joint 1 shown in FIG. 1, a spring steel wire is wound into a coil to form a central body portion 1a, and an arm portion 1c extending outward and a bent portion 1d in which a tip is bent at a substantially right angle.
And the tip end portion is configured as an annular hook portion 1e. The path from the central body portion 1a to the arm portion 1c is an oblique portion 1b that is bent from the winding end end of the central body portion 1a to the central portion side. Both of the arm portions 1c are shaped to extend outward from both ends of the central body portion 1a, respectively, but are configured to extend outward from their respective axial center portions of the central body portion 1a. . Therefore, when the spring joint 1 is used and elastically gripped by both arm portions 1c, a moment to rotate the spring joint 1 in the axial direction of the central body portion 1a does not occur, and the spring joint 1 is stable. It can be clamped by the gripping force.

Reference character d denotes a wire diameter. In this embodiment, the spring joint 1 is made of spring steel having a wire diameter of 4 mm. Further, D is the coil diameter of the central body portion 1a, which is 20 in this embodiment.
It is millimeter. w is the length of the central body portion 1a and is a dimension determined by the number of coils. In the present embodiment, the number of coils is 4
It is a roll and w = 20 mm. The length of the arm portion 1c is L1 and L2, and in this embodiment, L1 = 80 mm and L2 = 56 mm. An annular hook portion 1e is formed at the tip of the arm portion to form a hole portion 1f.

A method of mounting the spring joint 1 will be described with reference to FIGS. 2 and 3. The spring joint 1 is initially formed with an acute angle formed by both arms 1c, and the spring joint 1 is mounted while pushing the spring joint 1 into a substantially right-angled corner. Therefore, it can be mounted regardless of the material and surface condition of the packaging box, but considering stability of the mounting position and prevention of deviation after mounting, a groove is formed on the surface of the packaging box and a spring joint is formed in this groove. It is preferable to wear 1.

FIG. 3 shows an example of a grooved portion formed at the corner of the packaging box. Spring joint 1 for frame member 11
A groove 2 in which the central body portion 1a is mounted and a groove 3 in which the arm portion 1c is mounted are formed. The frame member 12 is formed with only the groove 4 into which the arm portion 1c is mounted. Similarly, the frame member 13
Grooves 2 and 3 are formed in the frame member, and a groove 4 is formed in the frame member 14. The width C1 of the groove 2 is formed slightly larger than the width 1 of the central body portion 1a. In this embodiment, the width w of the central body portion is 20 mm and the width C1 of the groove 2 is 24 mm.
The width C2 of the grooves 3 and 4 is preferably about 10 mm in this embodiment with a wire diameter d of 4 mm. The groove 2 for mounting the central body portion 1a may be formed in each of the frame members 11 and 12, but if formed in only one frame member as in this embodiment, only the width C2 is formed in the other frame member. This is preferable because it only requires processing and processing cost is reduced.

In the embodiment of the corner portion of the packing box shown in FIG. 2, the top plate is composed of the side plates 11a which are thin plates and the frame members 11 and 13 which are thick plates. The side plate 12a and the frame members 12 and 16 constitute one lateral plate, and the side plate 14a and the frame members 14 and 15 constitute the other lateral plate. The spring joint 1 is for fastening each frame member elastically to each other and sandwiching them elastically. One spring joint 1 fastens the frame members 11 and 12, and the other frame joints 13 and 14 are joined. Is fastened, and the frame members 15 and 16 are fastened by another spring joint 1 to form one corner portion.

The length of the arm portion 1c of the spring joint 1 is set to be equal to the width of each frame member, and when the spring joint 1 is mounted, the bent portion 1d is fitted to the end of the frame member. Has become.
Also, since the groove 2 is formed in one frame member,
One of the lengths of the arm portion 1c is L1 which is equal to the width B1 of the frame member, and the length L2 of the other arm is equal to the width B3 which is shorter by the width B2 of the groove 2.

The groove 2 is a groove to which the coil-shaped central body portion 1a is attached and is cut out in the entire thickness direction of the frame member, but the groove 3 has a predetermined depth because the arm portion 1c is attached. Only cut out. The groove 3 serves as a guide passage for the annular hook portion 1e at the tip when the spring joint 1 is mounted. Further, after the spring joint 1 is attached, the spring joint 1 is prevented from being displaced and also serves as a position regulating portion.
Therefore, the depth of the groove 3 is appropriately about the wire diameter d, but may be deeper than this. Further, since the groove 3 is processed on the rough surface of the plate material, the bottom surface of the groove 3 becomes smooth, and the annular hook portion 1
The frictional resistance is reduced when sliding e, and the mounting work for mounting the spring joint 1 can be performed easily.

Both arm portions 1c of the spring joint 1
Since the angle formed by is set to about 60 degrees, when the spring joint 1 is attached to the corners of the packaging box at a substantially right angle, both arms 1c are spread apart while The annular hook portion 1e is slid along the groove 3. Since both arm portions 1c are spread and attached to each other, both arm portions 1c elastically clamp the corner portion of the packaging box by the reaction force of the coil of the central body portion 1a and firmly hold it. It will be. When the three spring joints 1 are attached to the corners as in the present embodiment, it is possible to firmly hold the adjacent frame members by the elastic force of the arm 1c and the sandwiching of the bent portion 1d. It is also possible to form a packaging box for heavy goods.

Both arm portions 1c of the spring joint 1
Have a shape that extends outwardly in the vicinity of the approximate center of the center body 1a via the oblique portions 1b, so that both arm portions 1c
When elastically sandwiched by, the stable posture can be maintained without generating a moment to rotate the central body portion 1a in the axial direction.

Further, the tip of the arm portion 1c forms an annular hook portion 1e via the bent portion 1d. Therefore, when the spring joint 1 is mounted, the annular hook portion 1e comes into contact with the groove 3 or 4 and is configured to slide with a small frictional force. Ring hook 1e
A hole 1f is formed in the hole, and a jig (not shown) can be inserted and operated for attachment / detachment. Particularly when the spring force of the spring joint 1 is strong, the spring joint 1 cannot be removed without using a jig, and the annular hook portion 1e forming the hole portion 1f is formed.
Is an important factor.

FIG. 4 shows the packaging boxes 10 and 20. Figure 4
The packaging box 10 shown in (a) is an example in which the width E1 = 114 cm, the length F1 = 228 cm, and the height H1 = 111 cm. The width E2 of the packaging box 20 shown in FIG.
4 cm, length F2 = 114 cm, height H2 = 111 cm
Is an example of. By appropriately using the spring joint 1 for any of these packaging boxes, the packaging box can be assembled and disassembled easily without using nails or the like, and the packaging box can be repeatedly used. In the case of the packaging box 10 described above,
Its weight reaches 1.5 tons, 1 spring joint
It was confirmed that the packaging box 10 could be formed by using 28 pieces, and the range of use of the spring joint 1 ranged from light weight to heavy weight. In the case of the packaging box 20 of FIG. 4B, 24 spring joints 1 are used, but since the spring joints 1 are originally lightweight and inexpensive, the weight does not increase and the cost is high. It will never happen.

The process of assembling the packaging box 20 using the spring joint 1 according to the present invention will be described with reference to FIG. The horizontal plate 22 including the frame member 22a and the side plate 22b is attached to the pedestal 21 including the foot member 21a, the seat member 21b, and the bottom plate 21c by using the spring joint 1. After that, another horizontal plate 23 is attached to the base 21, and the horizontal plate 2
2 and 23 are fixed by the spring joint 1.
After mounting the four horizontal plates, the top plate 24 is covered and fixed by the plurality of spring joints 1.

On the contrary, the disassembling of the packaging box 20 is performed in the reverse order of the above, and the respective spring joints 1 are disassembled while being removed by hand or using a jig. The disassembled members are not broken and are disassembled into one base 21, four horizontal plates 22 and 23, one top plate 24, and many spring joints 1. Each of these disassembled members can be efficiently stored and can be reused. Further, each stored member can be used separately, each member can be effectively reused, and effective utilization of resources can be achieved. In addition, it is possible to obtain an environmentally friendly packaging box without producing waste or the like.

Recent automatic packing systems are configured to automatically pack and pack packages using an automatic packing robot. In such a system,
If the box body is formed from the beginning, the box packing work is difficult. Therefore, it is effective to use the packing box according to the invention that allows the automatic packing robot to initially place the load on the base only and then assemble the horizontal plate and the top plate.

[0033]

According to the invention as set forth in claim 1, when the wooden frames are assembled to form the packaging box, the wooden frames which are combined and positioned next to each other are formed by winding the wire rod in a coil shape. It has a central body and an arm extending outwardly from the central body, and is fastened by a spring joint in which an annular hook is formed at the tip of the arm, so a lightweight and durable joint member can be obtained. In addition to being obtainable, it is possible to obtain a packaging box which can be easily assembled and disassembled and can be repeatedly used.

According to the invention of claim 2, the hook portion has a bent portion for fastening the wooden frames together, has a guide function at the time of mounting, and further has a detaching jig for detaching after being once mounted. The spring joint can be easily and surely mounted at a predetermined position. Also, even if the tightening force is strong,
It can be easily removed by inserting the jig into the annular hook and working.

According to the third aspect of the present invention, the arm portion is temporarily bent toward the central portion from the winding end portions at both ends of the coiled central body portion, and extends outward at a position where the arm portions at both ends approach each other. Since the shape is such that the angle formed by the arms at both ends in the rotation direction is 90 degrees or less, the arms extending from both ends are assembled even if the assembly member has a large number of coils in order to increase the tightening force. Since it is bent in the approaching direction and then extends outward, it is possible to reduce the moment generated by both arms when both arms are attached to the box body, and it is possible to stably construct the packaging box.

According to the invention of claim 4, since the angle formed by the arms at both ends in the rotational direction is 60 ° ± 10 °, the assembly member having an angle of about 60 ° is initially pushed in. Since it is attached, it is possible to increase the tightening force, and it is possible to configure a packaging box that can also carry heavy objects.

According to the invention of claim 5, since the packaging box is fastened by the spring joint according to any one of claims 1 to 4, it is easy to assemble and disassemble.
It is possible to obtain packaging boxes that can be reused repeatedly.

[Brief description of drawings]

FIG. 1 shows a spring joint which is an assembly member according to the present invention, (a) is a front view and (b) is a plan view.

FIG. 2 is a perspective view showing a corner portion of a packaging box in which a spring joint according to the present invention is mounted.

FIG. 3 is a perspective view showing a grooved portion formed at a corner portion of the packaging box.

FIG. 4 shows a packing box according to the present invention, (a) is a perspective view showing a large-sized packing box for heavy objects, and (b) is a perspective view showing a packing box for relatively lightweight objects. .

FIG. 5 is a schematic explanatory view showing an assembling procedure of the packaging box according to the present invention.

[Explanation of symbols]

1 spring joint 1a Central body 1b oblique section 1c arm 1d bend 1e Ring hook part 10 packing boxes 20 packing boxes 21 platform 22 Horizontal plate 23 Horizontal plate 24 Top plate

Claims (5)

[Claims] 1. A joint member for assembling a packaging box by combining a plurality of wooden frames, comprising a central body formed by winding a wire into a coil shape, and an arm extending outward from the central body. A spring joint, wherein an annular hook portion is formed at a tip of the arm portion. 2. The hook portion has a bent portion for fastening the wooden frames together, has a guide function at the time of attachment, and further serves as an operation portion of a removal jig when the attachment is once performed and then removed. The spring joint according to claim 1. 3. The arm portion is provided with a skewed portion that is bent from the winding end portions at both ends of the coiled central body portion toward the central portion side, and extends outward when the arm portions at both ends approach each other. The spring joint according to claim 1 or 2, wherein an angle formed by the arms is 90 degrees or less. 4. The angle formed by the arms is 60 ° ± 10
The spring joint according to claim 3, wherein the spring joint is in degrees. 5. A packaging box which is fastened by the spring joint according to any one of claims 1 to 4 and is formed by combining a wooden frame having a groove for mounting the spring joint.