Joint member and joint structure of fence furring strip

Abstract

To provide a joint member and a joint structure that can simplify an assembly work by reducing the number of bolts and nuts required to connect furring strips without changing shapes of conventional furring strips, and can connect furring strips with high precision.SOLUTION: A joint member connects a first furring strip having a vertical furring strip edge and a horizontal furring strip edge extending in a longitudinal direction to a second furring strip having a vertical furring strip edge and a horizontal furring strip edge extending in a longitudinal direction, in the longitudinal direction. The joint member comprises: a vertical edge abutting on each of the vertical furring strip edges of the first furring strip and the second furring strip; and a horizontal edge formed approximately perpendicular to the vertical edges. The vertical edge has a plurality of engaging portions and a plurality of bolt insertion holes. The engaging portions engage with holes formed in the respectively vertical furring strip edges of the first furring strip and the second furring strip.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a joint member and a joint structure for a body edge used for a fence or the like.

Background Art

[0002] Generally, a fence installed along the boundary of a site is configured by stretching a plurality of body edges formed of angle materials or the like between columns erected on the ground at intervals, and stretching a net on the body edges. Further, when the total length of one body edge is shorter than the length corresponding to the installation range of the fence, a plurality of body edges are connected in the longitudinal direction, and after preparing a body edge of a predetermined length, the fence is constructed.

[0003] Conventional joint structures for body edges are known in various structures. For example, as shown in FIG. 6, the body edge end faces 10a and 10b of two adjacent body edges 1 are butted against each other, and through a joint member 100 having a side shorter than the side length of the side of the body edge, four sets of bolts and nuts are tightened and connected.

[0004] Also, Patent Document 1 describes an angle material connection structure for a fence body edge or the like that can simplify the work of aligning the bolt holes of two adjacent body edges in the connection work of the body edge, and can ensure the linearity of the body edge after connection and the fastening property without rattling.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The angle member connection structure for a fence body edge or the like shown in Patent Document 1 can reduce the labor of the work for installing a fence by engaging an engaging bent piece provided on one angle member with a through hole provided on the other angle member, and can also save the number of bolts and nuts required for connection.

[0007] However, the angle member connection structure shown in Patent Document 1 has a problem that since it is necessary to process the fence body edge itself, the existing body edge cannot be utilized as it is, and the manufacturing cost of the body edge itself increases.

[0008] In addition, the conventional joint structure of the body edge as shown in FIG. 6 has a problem that the number of fastening parts such as bolts and nuts required for connecting the body edges 1 is large, and the assembling work becomes complicated. Further, in the conventional joint structure of the body edge, the bolt insertion holes 101 formed in the joint member 100 are formed as long holes in order to allow dimensional errors during assembly, but this also causes a problem that a gap larger than the allowable range is formed between the connecting surfaces 1a, 1a of the adjacent body edges 1, 1.

[0009] Therefore, the present invention has been made in view of the above matters, and an object thereof is to provide a joint member and a joint structure that can simplify the assembling work by reducing the number of bolts and nuts required for connecting the body edges without changing the shape of the conventional body edge, and can connect the body edges with high accuracy.

Means for Solving the Problems

[0010] This invention has been made to achieve the above object, and is characterized by the following.

[0011] The joint member according to the present invention is a joint member that connects a first body edge having a body edge vertical side and a body edge horizontal side extending along the longitudinal direction, and a second body edge having a body edge vertical side and a body edge horizontal side extending along the longitudinal direction along the longitudinal direction. The joint member includes a vertical side that abuts on each of the body edge vertical sides of the first body edge and the second body edge, and a horizontal side formed at a substantially right angle to the vertical side. The vertical side includes a plurality of engaging portions and a plurality of bolt insertion holes. The engaging portions are characterized by engaging with holes formed in each of the body edge vertical sides of the first body edge and the second body edge.

[0012] In the joint member according to the present invention, it is preferable that the engaging portion protrudes outward from the vertical side.

[0013] In the joint member according to the present invention, it is preferable that the bolt insertion hole is formed outside the engaging portion in the longitudinal direction.

[0014] In the joint member according to the present invention, it is preferable that the bolt insertion hole is formed in an elongated hole extending in the longitudinal direction.

[0015] In the joint member according to the present invention, it is preferably made of an L-shaped steel material.

[0016] In the joint member according to the present invention, it is preferable that the engaging portion is formed by extruding the vertical side outward.

[0017] The joint structure according to the present invention includes a first barrel edge having a barrel edge vertical side and a barrel edge horizontal side extending along the longitudinal direction, a second barrel edge having a barrel edge vertical side and a barrel edge horizontal side extending along the longitudinal direction, and a joint member connecting the first barrel edge and the second barrel edge along the longitudinal direction. In the joint structure, the joint member includes a vertical side that abuts against each of the barrel edge vertical sides of the first barrel edge and the second barrel edge, and a horizontal side formed substantially at a right angle to the vertical side. The vertical side includes a plurality of engaging portions and a plurality of bolt insertion holes. The engaging portions are engaged with hole portions formed in each of the barrel edge vertical sides of the first barrel edge and the second barrel edge.

[0018] The summary of the above invention does not list all the features necessary for the present invention, and sub-combinations of these feature groups can also be inventions.

Effects of the Invention

[0019] According to the present invention, it is possible to reduce the number of fastening parts such as bolts and nuts required for connecting the barrel edges, thereby reducing the manufacturing cost, and moreover, it is possible to accurately connect the barrel edges.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0021] Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. Note that the following embodiments do not limit the invention according to each claim, and not all combinations of the features described in the embodiments are essential for the solution means of the invention.

[0022] FIG. 1 is a reference view showing one form of a fence installed using the joint member according to the present embodiment, FIG. 2 is an exploded perspective view showing a joint structure of a body edge using the joint member according to the present embodiment, FIG. 3 is a perspective view showing the joint member according to the present embodiment, FIG. 4 is a view of a connecting portion of the body edge connected using the joint member according to the present embodiment as seen from the inner side in the depth direction, and FIG. 5 is a sectional view taken along line A-A of FIG. 4.

[0023] In this specification, the longitudinal direction, the height direction, and the outer and inner depth directions are defined as the directions and orientations of the arrows shown in FIG. 2. Also, in this specification, the outer longitudinal direction is defined as the direction from the longitudinal center to the longitudinal end in each body edge or joint member, and the inner longitudinal direction is defined as the direction from the longitudinal end to the longitudinal center. Further, in this specification, the ventral surface of the body edge is defined as the surface shown in FIG. 5.

[0024] As shown in FIG. 1, the body edge 1 connected using the joint member according to the present embodiment is installed between the columns 2 erected on the ground at intervals at the heights that are the upper and lower edges of the fence, and the net 3 is attached thereto.

[0025] As an example, as shown in FIG. 1, the column 2 has a main column 2a with a substantially V-shaped cross section and a net 3 disposed on both sides of the column, and an end column 2b with a substantially L-shaped cross section and a net 3 disposed on one side of the column. Both the main column 2a and the end column 2b are preferably formed of general structural rolled steel or the like. Further, the main column 2a and the end column 2b are provided with through holes through which bolts pass at the heights that are the upper and lower edges of the fence, and the body edge 1 is installed on the column 2 by bolts passing through the through holes and fastening members (not shown).

[0026] The net 3 is a member composed of a plurality of iron wires, and it is preferably a wire mesh formed by processing the iron wires so that the ridges are continuous and knitting them together to form a diamond-shaped mesh. Since the net 3 is not fixed by welding or the like at the joining points of the meshes of the plurality of iron wires, the net 3 itself has elasticity and has shock-absorbing properties. The net 3 is attached, for example, by hooking it on a claw portion (not shown) formed on the body edge 1.

[0027] The body edge 1 is assembled to a required length by connecting a first body edge 1a, which is an adjacent body edge for a fence, and a second body edge 1b in the longitudinal direction, and constitutes the upper and lower edges of the fence.

[0028] As shown in FIG. 2, the joint structure of the body edge using the joint member according to the present embodiment connects one end of a first body edge 1a extending along the longitudinal direction and one end of a second body edge 1b extending along the longitudinal direction via a joint member 20 by tightening two sets of bolts and nuts. At this time, an appropriate-sized gap is formed between one body edge end face 10a of the first body edge 1a and one body edge end face 10b of the second body edge 1b.

[0029] As shown in FIG. 2, the first body edge 1a and the second body edge 1b are long members having an L-shaped cross section with body edge vertical sides 11a, 11b and body edge horizontal sides 12a, 12b. Also, it is preferable that the first body edge 1a and the second body edge 1b are members having the same cross-sectional shape.

[0030] The first body edge 1a and the second body edge 1b are channel steels having a predetermined plate thickness and are formed of general structural rolled steel materials or the like. In order to prevent corrosion due to rust or the like, it is preferable that zinc plating or electrostatic powder coating using a polyester resin as a base paint is applied. In this specification, each side of the first body edge 1a and the second body edge 1b is referred to as a body edge vertical side 11a, 11b for the side arranged vertically and a body edge horizontal side 12a, 12b for the side arranged horizontally according to the mounting posture on the fence.

[0031] Holes 13 and 14 are formed at one end of one of the vertical sides 11a and 11b of the barrel edge.

[0032] The hole 13 is arranged at a predetermined distance from the end faces 10a and 10b of the barrel edge inward in the longitudinal direction. Also, the hole 14 is located at the same height as the hole 13 and is arranged at a predetermined distance from the hole 13 inward in the longitudinal direction. Further, it is preferable that the holes 13 and 14 are formed to have a diameter slightly larger than the diameter of the engaging portion 24 described later while allowing the bolts for fastening the joint member 20 to pass through. Incidentally, if necessary, at the other end of the first barrel edge 1a and the second barrel edge 1b (not shown), holes 13 and 14 similar to those at one end are also formed. In this case, the first barrel edge 1a and the second barrel edge 1b can be continuously connected in the longitudinal direction to form a continuous barrel edge having a length corresponding to the installation range of the fence.

[0033] Note that such holes 13 and 14 are also formed at the ends of the conventional barrel edge. Therefore, the joint member 20 of the present embodiment can also be applied when connecting conventional barrel edges.

[0034] As shown in FIG. 3, the joint member 20 is a member having a cross-sectional L shape with a predetermined length in the longitudinal direction and having a vertical side 21 and a horizontal side 22. The joint member 20 is a channel steel having a predetermined plate thickness and is formed of a general structural rolled steel material or the like, and it is preferable that zinc plating or the like is applied to prevent corrosion due to rust or the like. In the present specification, each side of the joint member 20 is referred to as a vertical side 21 for the side arranged vertically and a horizontal side 22 for the side arranged horizontally according to the mounting posture to the barrel edge 1.

[0035] The side edges of the vertical side 21 are formed with a shorter side length than the side edges of the vertical barrel edges 11a and 11b of the first barrel edge 1a and the second barrel edge 1b. Similarly, the side edges of the horizontal side 22 are formed with a shorter side length than the side edges of the horizontal barrel edges 12a and 12b of the first barrel edge 1a and the second barrel edge 1b. Further, when the joint member 20 is attached to the barrel edge 1, the vertical side 21 abuts against the ventral surfaces of the vertical barrel edges 11a and 11b, and the horizontal side 22 abuts against the ventral surfaces of the horizontal barrel edges 12a and 12b. For this reason, the end surfaces in the height direction of the vertical side 21 and the end surfaces in the depth direction of the horizontal side 22 are located inside each side edge of the barrel edge 1 after connection, and the corners of the vertical side 21 and the horizontal side 22 are not exposed even after the fence is installed, ensuring safety.

[0036] As shown in FIG. 3, the vertical side 21 includes bolt insertion holes 23 at both longitudinal ends and two engaging portions 24 disposed inside the bolt insertion holes 23 in the longitudinal direction.

[0037] The bolt insertion holes 23 are formed as long holes extending in the longitudinal direction, and bolts for fastening the joint member 20 and the barrel edge 1 are inserted therethrough. Further, the bolt insertion holes 23, 23 are formed at positions corresponding to the hole portions 14 of the first barrel edge 1a and the hole portions 14 of the second barrel edge 1b after connection.

[0038] The engaging portions 24 are formed to protrude by a predetermined dimension outward in the depth direction from the vertical side 21. It is preferable that the engaging portions 24 have a circular shape corresponding to the shapes of the hole portions 13 of the first barrel edge 1a and the hole portions 13 of the second barrel edge 1b when viewed from the depth direction of the vertical side 21. Further, the engaging portions 24, 24 are formed at positions corresponding to the hole portions 13 of the first barrel edge 1a and the hole portions 13 of the second barrel edge 1b after connection. In particular, the intervals between the engaging portions 24, 24 are arranged to be equal to the intervals between the hole portions 13, 13 in a state where an appropriate gap is formed between the barrel edge end surface 10a and the barrel edge end surface 10b when the first barrel edge 1a and the second barrel edge 1b are connected. Further, as shown in FIG. 5, it is preferable that the engaging portions 24 are formed by so-called embossing processing in which a part of the vertical side 21 is pushed out from the inside in the depth direction to the outside in the depth direction.

[0039] To connect the first body edge 1a and the second body edge 1b using such a joint member 20, first, as shown in FIGS. 2 and 5, the engaging portions 24, 24 are engaged with the hole portions 13 of the first body edge 1a and the hole portions 13 of the second body edge 1b to determine the relative positions of the first body edge 1a and the second body edge 1b. Next, bolts are inserted through the bolt insertion holes 23, 23, the hole portions 14 of the first body edge 1a, and the hole portions 14 of the second body edge 1b. Finally, by fastening nuts to the bolts, the first body edge 1a and the second body edge 1b are connected.

[0040] At this time, the engaging portion 24 is formed in a circular shape corresponding to the shape of the hole portion 13, and the interval between the engaging portions 24, 24 is arranged to be equal to the interval between the hole portions 13, 13 in a state where the first body edge 1a and the second body edge 1b are properly connected. For this reason, an appropriate gap is formed between the body edge end surface 10a of the first body edge 1a and the body edge end surface 10b of the second body edge 1b, and the relative positions of the first body edge 1a and the second body edge 1b can be accurately determined.

[0041] Further, since the bolt insertion holes 23 are formed as elongated holes extending in the longitudinal direction, even when a relative dimensional error occurs between the positions of the hole portions 14, 14 and the positions of the bolt insertion holes 23, 23 in the connected state of the first body edge 1a and the second body edge 1b, the bolts can be inserted while allowing an error in the longitudinal direction.

[0042] Moreover, in the joint member 20 of the present embodiment, the bolt insertion holes 23, 23 are arranged on the outer side in the longitudinal direction, and the engaging portions 24, 24 are arranged on the inner side in the longitudinal direction rather than the bolt insertion holes 23, 23. According to the joint structure of the body edge using the joint member 20 having the bolt insertion holes 23, 23 and the engaging portions 24, 24 arranged in this way, even when a large load is applied in the vertical direction to the connecting portion, the engaging portions 24, 24 do not fall off from the hole portions 13, 13, and the body edge 1 having an excellent joint structure in terms of strength can be configured.

[0043] In addition, in this embodiment, the engaging portion 24 is formed by so-called embossing in which a part of the vertical side 21 is pushed out from the inner side in the depth direction to the outer side in the depth direction. However, the method of forming the engaging portion 24 is not limited to this. For example, a separate component may be attached by welding or the like. It is clear from the description of the claims that forms with such changes or improvements may also be included in the technical scope of the present invention.

Explanation of Signs

[0044] 1 Barrel edge for fence 1a First barrel edge 1b Second barrel edge 2 Support column 2a Main column 2b End column 3 Net 10a, 10b Barrel edge end face 11a, 11b Barrel edge vertical side 12a, 12b Barrel edge horizontal side 13, 14 Hole part 20 Joint member 21 Vertical side 22 Horizontal side 23 Bolt insertion hole 24 Engaging portion 100 Joint member 101 Bolt insertion hole

Claims

1. A joint member that connects a first body edge having a body-edge vertical side and a body-edge horizontal side extending along the longitudinal direction, and a second body edge having a body-edge vertical side and a body-edge horizontal side extending along the longitudinal direction, along the longitudinal direction, wherein the joint member includes a vertical side that abuts against each of the body-edge vertical sides of the first body edge and the second body edge, and a horizontal side formed at a substantially right angle to the vertical side, the vertical side includes a plurality of engaging portions and a plurality of bolt insertion holes, the engaging portion engages with a hole formed in each of the body-edge vertical sides of the first body edge and the second body edge. The joint member is characterized by this.

2. In the joint member according to Claim 1, the engaging portion projects outward in the depth direction from the vertical side. The joint member is characterized by this.

3. In the joint member according to Claim 1, the bolt insertion holes are formed outside the engaging portion in the longitudinal direction. The joint member is characterized by this.

4. In the joint member according to Claim 1, the bolt insertion holes are formed in elongated holes extending in the longitudinal direction. The joint member is characterized by this.

5. In the joint member according to Claim 1, the joint member is made of an L-shaped steel material. The joint member is characterized by this.

6. In the joint member for the body edge according to Claim 2, the engaging portion is formed by extruding the vertical side outward in the depth direction. The joint member is characterized by this.

7. In a joint structure including a first body edge having a body-edge vertical side and a body-edge horizontal side extending along the longitudinal direction, a second body edge having a body-edge vertical side and a body-edge horizontal side extending along the longitudinal direction, and a joint member that connects the first body edge and the second body edge along the longitudinal direction, the joint member includes a vertical side that abuts against each of the body-edge vertical sides of the first body edge and the second body edge, and a horizontal side formed at a substantially right angle to the vertical side, the vertical side includes a plurality of engaging portions and a plurality of bolt insertion holes, the engaging portion engages with a hole formed in each of the body-edge vertical sides of the first body edge and the second body edge. The joint structure is characterized by this.

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