JP2005127390A - Board connecting rivet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board connecting rivet capable of connecting overlapped portions of a board by sequentially fixing female members and male members from the same face of the board, even though rigidity of a connection part is almost the same as that of a conventional one. <P>SOLUTION: This rivet comprises a male member M having a columnar part 12 and a planar part 11 formed on one end of the columnar part 12; and a female member F having an annular planar part 21 with a hole 24 receiving the columnar part 12, a tubular projection part 22 formed in a perpendicular direction from the annular planar part 21 so as to be tapered inwardly and downwardly, and split by a slit 25, and a pawl part 23 formed on an outer periphery of a projection end of the tubular projection part 22. After the female member F is fitted from one face of the board to be connected, when the columnar part 12 of the male member M is inserted through the hole 24 of the female member F from the same face, the tubular projection part 22 is resiliently enlarged outward. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  In the present invention, in order to connect the boards, in particular, when forming a packaging box by folding a box-forming plate material such as corrugated cardboard, plastic board, PP board, etc., the overlapping position of the box-forming plate material is determined. The present invention relates to a board connecting rod for fastening and connecting.

  2. Description of the Related Art Conventionally, as a board connecting rod, a type in which a male member and a female member of the same type or different types that engage with each other are fastened from both sides with a board to be connected in between is known.

This type of board connecting hook engages or locks the male and female members while pressing the boards to be connected from both sides in the direction in which they are in close contact with each other. From the point of view, it makes sense.
No. 7-55376 Japanese Utility Model No. 5-1691 Japanese Utility Model Publication No. 63-17315

  However, for example, when forming a large packaging box using a box forming plate material such as corrugated paper as a board, when connecting the deepest box forming plate material of the large box, There is a problem in that the size of itself does not reach the connecting portion, and the board connecting hooks cannot be fastened from both sides of the box forming plate material.

  Therefore, the present invention is to connect the overlapping portions of the board by sequentially fastening the male member and the female member from the same surface of the board while the rigidity of the connecting part is comparable to the conventional one. The board connection kite which can do is provided.

  The configuration of the board connection rod according to the present invention taken to solve this problem will be described using the common reference numerals used in the drawings showing the embodiments. The board connection cage according to the present invention is a synthetic resin material. A board-connecting ridge formed by a male member M having a columnar portion 12 and a flat plate portion 11 formed at one end of the columnar portion 12, and an annular shape having a hole 24 for receiving the columnar portion 12. A flat plate portion 21, a cylindrical protrusion 22 formed in a direction orthogonal to the annular flat plate portion 21 and squeezed inwardly and divided by a slit 25, and a protrusion of the cylindrical protrusion 22 A female member F having a claw portion 23 formed on the outer peripheral surface of the end, and after fitting the female member F from one surface of the board to be connected, the columnar portion 12 of the male member M is inserted from the same surface. When inserted through hole 24 of female member F, tubular The output portion 22 toward the outside are those according to the board connecting stud that is to resiliently press spreading structure.

  According to the board connecting scissors according to claim 1 of the present invention, the female member and the male member of the board connecting scissors are sequentially fastened from the same surface of the board. Even when a large packaging box is formed using a plate-like material, it is easy to lock either one by avoiding the situation where the box does not reach the connecting part due to the size of the box itself. It is possible to obtain an excellent effect that the box-forming plate-shaped material can be easily connected by selecting the surface and sequentially fixing the female member and the male member.

  Further, the male member M and the female member F are configured as described in claim 1, and when the protruding portion 12 of the male member M is inserted through the hole 24 of the female member F, the cylindrical protruding portion 22 faces outward. By adopting a structure that pushes out elastically, the claw portion 23 formed on the female member F can be caught by the box-forming plate material, and the board to be connected by the annular flat plate portion 21 and the claw portion 23 can be sandwiched. Can firmly connect the boards.

  In carrying out the present invention, the male member M can be engaged with the female member F when the male member M is inserted into the female member F until the flat plate portion 11 of the male member M contacts the annular flat plate portion 21 of the female member F. It is preferable to have a structure having a stop 13. Thereby, by fixing the male member M with respect to the female member F, it is possible to stably maintain the state in which the cylindrical protruding portion 22 of the female member M is elastically pushed outward. Accordingly, the state in which the board is sandwiched and connected by the annular flat plate portion 21 and the claw portion 23 can be stably maintained.

  As a more specific configuration in which the male member M is fixed to the female member F, the shape of the flat plate portion 11 formed on the male member M is arbitrary such as a circle and a rectangle, and the size is also arbitrary. By forming in a size and shape that does not fit into the hole 24 formed in the annular flat plate portion 21 of the member F, the flat plate portion 11 of the male member M comes into contact with the annular flat plate portion 21 of the female member F, and the male member M Can be prevented from being inserted more than necessary into the hole 24 of the female member F.

  Further, when the male member M is inserted into the female member F, the configuration in which the locking portion 13 of the male member M is locked to the female member F can prevent the male member M from coming off the female member F. The male member M may be formed at any location, and may have any size and shape. You may form the latching | locking part 26 of the female member F engaged with the latching | locking part 13 of the male member M. FIG.

  Embodiments of the present invention will be described below together with illustrated examples. 1 to 3 show a board connecting rod according to a first embodiment of the present invention. FIG. 1 is a perspective view, and FIGS. 2 and 3 are sectional views taken along line AA showing a use state.

  The board connecting rod of the first embodiment is a board connecting rod made up of a male member M and a female member F formed of a synthetic resin material. The individual members will be described in detail in FIG. As described above, the male member M is formed of a circular flat plate portion 11 formed at one end of the circular columnar portion 12 and a locking portion 13 formed at the other end. The female member F has a circular annular flat plate portion 21 having a circular hole 24 for receiving the columnar portion 12 of the male member M, and is formed in a direction orthogonal to the annular flat plate portion 21 and squeezed inward. The cylindrical protrusion 22 is formed, and a claw 23 is formed on the outer peripheral surface of the protruding end of the cylindrical protrusion 22. The cylindrical wall of the cylindrical protrusion 22 is provided with a slit 25 so as to divide the cylindrical portion into two equal parts. The diameters of the circular flat plate portion 11 of the male member M and the circular annular flat plate portion 21 of the female member F are substantially the same.

  In use, as shown in FIG. 2, first, the female member F is fitted from one side of the back and front into the connection location where the corrugated cardboard is superposed. Next, the columnar portion 12 of the male member M is inserted from the same surface into the cylinder of the cylindrical protruding portion 22 through the hole 24 formed in the annular flat plate portion 21 of the female member F from the side where the locking portion 13 is formed. To go.

  As the male member M is inserted, the cylindrical protrusion 22 formed in the lower diaphragm and divided into two equal parts by the slit 25 is elastically outward depending on the thickness of the locking portion 13 or the columnar portion 12 of the male member M. As shown in FIG. 3, the claw portion 23 is caught by the polymerized cardboard paper, and the polymerized cardboard paper is sandwiched and connected by the annular flat plate portion 21 and the claw portion 23.

  On the other hand, when the circular flat plate portion 11 of the male member M and the annular flat plate portion 21 of the female member F are in contact, the male member M is prevented from being inserted into the female member F any more. Further, the locking portion 13 of the male member M passes through the inside of the cylindrical protruding portion 22 of the female member F, and is then engaged with the protruding end of the cylindrical protruding portion 22 of the female member F, so that the male member M It is prevented from falling off the female member F. By these actions, the male member M is fixed to the female member F, and as a result, the cylindrical protrusion 22 of the female member F faces outward due to the thickness of the columnar portion 12 of the male member M. It can be stably maintained in a state where it is elastically pushed and spread, and the corrugated cardboard is sandwiched between the annular flat plate portion 21 and the claw portion 23 of the female member F and is stably and firmly connected.

  FIG. 4 is a perspective view of a board connecting rod according to a second embodiment of the present invention, which is a board connecting rod comprising a male member M and a female member F formed of a synthetic resin material. The male member M includes a circular columnar portion 12, a circular flat plate portion 11 formed at one end of the columnar portion 12, and a two-stage chevron-shaped locking portion 13 formed on the outer peripheral surface of the other end. Is formed. The female member F was formed in a circular annular flat plate portion 21 having a circular hole 24 for receiving the columnar portion 12, and in a direction orthogonal to the annular flat plate portion 21 and squeezed inward. The cylindrical projecting portion 22 and a claw portion 23 formed on the outer peripheral surface of the projecting end of the cylindrical projecting portion 22 are formed. The cylindrical wall of the cylindrical projecting portion 22 has two cylindrical portions. A slit 25 is inserted so as to be equally divided. These points are the same as in the first embodiment, but a locking portion 26 having a two-step valley structure that can be engaged with the locking portion 13 is formed on the inner peripheral surface of the protruding end of the cylindrical protruding portion 22. Is formed. Moreover, since the cylindrical protrusion part 22 of the female member F is formed so that it may squeeze inward, the internal diameter becomes small as it goes to the direction of the nail | claw part 23, but as shown to FIG. 2 and FIG. The cylindrical protrusion 22 is formed so that the inner wall on the side close to the protruding end is thickened to make the inner diameter smaller, and when the male member M is inserted into the female member F, the cylindrical protrusion of the female member F The action of expanding the portion 22 elastically outward is increased.

  As in the first embodiment, as shown in FIG. 5, the method of use is as follows. First, the female member F is fitted into the connecting portion where the corrugated cardboard is polymerized from either the front or back side, and then from the same side. The male member M is inserted into the cylinder of the cylindrical protrusion 22 of the female member F.

  Then, as shown in FIG. 6, as in the first embodiment, the cylindrical protruding portion 22 of the female member F is elastic outward due to the thickness of the locking portion 13 or the columnar portion 12 of the male member M. The claw portion 23 is caught on the polymerized cardboard paper, and the polymerized cardboard paper is sandwiched and connected by the annular flat plate portion 21 and the claw portion 23.

  On the other hand, when the circular flat plate portion 11 of the male member M and the annular flat plate portion 21 of the female member F are in contact, the locking portion 13 of the two-step mountain structure of the male member M and the two-step valley-type structure of the female member F are provided. Thus, the male member M is prevented from falling off the female member F. Further, the state in which the cylindrical projecting portion 22 of the female member F is elastically expanded outward by the thickness of the columnar portion 12 and the locking portion 13 of the male member M is stably maintained.

  FIG. 7 is a perspective view of a board connecting rod according to a third embodiment of the present invention, which is a board connecting rod made up of a male member M and a female member F formed of a synthetic resin material. The male member M is formed of a circular columnar portion 12, a circular flat plate portion 11 formed at one end of the columnar portion 12, and a spherical portion 14 formed at the other end, and the locking portion 13 is formed. Not. The female member F has substantially the same configuration as that of the first embodiment, but the inside of the cylinder of the cylindrical projecting portion 22 penetrates along the cylinder wall formed by squeezing inward. The diameter of the sphere portion 14 of the male member M is formed to be approximately equal to the inner diameter of the hole 24 of the female member F.

  The method of use is the same as in the first and second embodiments. However, as shown in FIG. 8, after the female member F is fitted from one side of the back and front into the connection location where cardboard paper is superposed. The male member M is inserted into the cylinder of the cylindrical protrusion 22 of the female member F from the same surface. Then, as shown in FIG. 9, the cylindrical protruding portion 22 is elastically pushed outward by the thickness of the spherical portion 14 of the male member M.

  On the other hand, when the circular flat plate portion 11 of the male member M and the annular flat plate portion 21 of the female member F are in contact with each other, the male member M is not locked to the female member F because the locking portion 13 is not formed on the male member M. However, the cylindrical protruding portion 22 of the female member F that is elastically pushed outward with respect to the spherical portion 14 of the male member M is directed inward. That is, an effect is obtained in which the restoring force acts in the direction in which the spherical body portion 14 is tightened and the male member M is prevented from falling off the female member F.

  Although the embodiment considered to be a representative example of the present invention has been described above, the board connecting rod of the present invention is not limited to the above-described embodiment. For example, the columnar portion 12 of the male member M is a female member. When inserted into the hole 24 of F, the cylindrical protrusion 22 has a structure in which the cylindrical member 12 or the locking member 13 or the spherical member 14, the female member 14 of the male member M is provided as long as it is elastically expanded outward. The size, shape, and structure of the inner diameter of the cylindrical protruding portion 22 of F can be arbitrarily set, and the above-described structural requirements of the present invention are achieved, the object of the present invention is achieved, and the present invention is referred to. The present invention can be implemented with appropriate modifications within the range having the effect.

  The board connecting rod of the present invention is different from the conventional type in which the board connecting rod is fixed from both sides across the board to be connected, and the male member and the female member are fixed from the same surface of the board. It is simple and convenient in that the superposed portions can be connected, and in the future, it is an invention that is highly demanded as a board connecting rod for connecting box-shaped plate-like materials.

The perspective view of 1st Example. Sectional drawing which shows the use condition of 1st Example. Sectional drawing which shows the use condition of 1st Example. The perspective view of 2nd Example. Sectional drawing which shows the use condition of 2nd Example. Sectional drawing which shows the use condition of 2nd Example. The perspective view of 3rd Example. Sectional drawing which shows the use condition of 3rd Example. Sectional drawing which shows the use condition of 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Flat part 12 Columnar part 13 Locking part 14 Sphere part 21 Annular flat plate part 22 Cylindrical protrusion part 23 Claw part 24 Hole 25 Slit 26 Locking part M Male member F Female member

Claims (2)

  A board connecting rod formed of a synthetic resin material, the male member (M) having a columnar part (12) and a flat plate part (11) formed at one end of the columnar part (12), An annular flat plate portion (21) having a hole (24) for receiving the columnar portion (12), and formed in a direction orthogonal to the annular flat plate portion (21) and squeezed inward, slit ( 25) and a female member (F) having a cylindrical projecting portion (22) divided by 25) and a claw portion (23) formed on the outer peripheral surface of the projecting end of the cylindrical projecting portion (22). When the female member (F) is inserted from one side of the board to be connected, the columnar part (12) of the male member (M) is inserted from the same side through the hole (24) of the female member (F). A board connection rod with a structure in which the protruding portion (22) is elastically pushed outward.   When inserted into the female member (F) until the flat plate portion (11) of the male member M contacts the annular flat plate portion (21) of the female member (F), the male member (M) is locked to the female member (F). The board connecting rod according to claim 1, further comprising a locking portion (13) that can be used.

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