Fence truss

Abstract

To provide a furring strip for a fence which can easily change an angle of a furring strip.SOLUTION: A furring strip for a fence includes a first furring strip having a horizontal side extending in a longer direction and a vertical side, and a second furring strip having a horizontal side extending in a longer direction and a vertical side, wherein in one end of the first furring strip, a first shaft cylinder part having a shaft center in a direction crossing the longer direction, a core rod penetrating through the first shaft center, and a second blade member rotatably mounted around the core rod are provided, the second blade member has a second shaft cylinder part penetrating through the core rod, and a second plate part formed with a plurality of second through holes, and the first furring strip and the second furring strip are connected to each other in the longer direction so that the second plate part overlaps inside the second furring strip.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a furring strip used for fences and the like. [Background technology]

[0002] Generally, fences installed along property boundaries are constructed by hanging multiple furring strips made of angle bars or similar between posts erected at intervals in the ground, and then stretching a net over the furring strips. Also, if the total length of a single furring strip is shorter than the installed length of the fence, the fence is constructed by connecting multiple furring strips lengthwise.

[0003] As shown in Figure 10, conventional furring strips are connected by butting the end faces of two adjacent furring strips together and tightening multiple bolts and nuts via a joint piece with a side that is shorter than the side of the furring strip.

[0004] Patent Document 1 also describes an angle bar connection structure for furring strips for fences, etc., which simplifies the work of aligning the bolt holes of two adjacent furring strips when connecting the strips, and ensures the linearity of the furring strips after connection and a rattle-free fastening ability. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 2878981 Summary of the Invention [Problem to be solved by the invention]

[0006] The angle bar connection structure for fence furring strips and the like shown in Patent Document 1 reduces the labor required for fence installation work by engaging an engaging bent piece on one angle bar with a hole on the other angle bar, and also makes it possible to save on the number of bolts required for connection.

[0007] Conventionally, fence furring strips are long, straight members, and the connecting structure of the fence furring strips shown in Patent Document 1 also requires linearity after connection. However, at actual fence installation sites, the ground may be sloped, and the angle of inclination may vary depending on the location. When installing conventional straight fence furring strips in such locations, the spacing between the ground and the furring strip becomes inconsistent, resulting in an unsightly appearance. Furthermore, if the spacing between the ground and the furring strip becomes wider in some areas, there is a risk that the function of the fence itself as a boundary between the property may be impaired.

[0008] Furthermore, in the past, when installing a fence to accommodate sloping ground, it was necessary to prepare pre-bent furring strips or erect posts at the position where the angle of the furring strips was desired, and then erect straight furring strips on these posts to construct the fence, making it difficult to quickly adapt to the installation environment.

[0009] Therefore, the present invention has been made in consideration of the above matters, and its object is to provide a furring strip for a fence that does not require a support to change the angle of the furring strip, but rather can easily change the angle of the furring strip by changing the angle of the connecting part of two adjacent furring strips. [Means for solving the problem]

[0010] The present invention has been made to achieve the above object and has the following features.

[0011] The fence furring strip of the present invention comprises a first furring strip having horizontal and vertical sides extending along the longitudinal direction, and a second furring strip having horizontal and vertical sides extending along the longitudinal direction, one end of the first furring strip having a first cylindrical shaft portion having an axis intersecting the longitudinal direction, a core rod passing through the first cylindrical shaft portion, and a second wing member attached so as to be rotatable around the core rod, the second wing member having a second cylindrical shaft portion through which the core rod passes, and a second plate portion having a plurality of second through holes formed therein, and the first furring strip and the second furring strip are connected longitudinally with the second plate portion overlapping the inside of the second furring strip.

[0012] In the fence furring strip according to the present invention, it is preferable that the other end of the second furring strip has a plurality of second connecting holes formed therein that correspond to the second through holes.

[0013] In the fence furring strip of the present invention, it is preferable that one end of the first furring strip and one end of the second furring strip have the same shape, and the other end of the first furring strip and the other end of the second furring strip have the same shape.

[0014] In the fence furring strips of the present invention, it is preferable that the outer surfaces of the horizontal edges of the first furring strips and the outer surfaces of the horizontal edges of the second furring strips are connected so that they are located in the same imaginary plane, and that the outer surfaces of the vertical edges of the first furring strips and the outer surfaces of the vertical edges of the second furring strips are connected so that they are located in the same imaginary plane.

[0015] In the fence furring strip of the present invention, one end of the first furring strip has a plurality of first connecting holes formed therein and a first wing member attached thereto, the first wing member having the first shaft tube portion and a first plate portion having a plurality of first through holes formed therein that correspond to the first connecting holes, and it is preferable that the first wing member has the same shape as the second wing member.

[0016] In the fence furring strip of the present invention, it is preferable that the first through hole, the second through hole, the first connecting hole portion, and the second connecting hole portion are elongated holes extending in the longitudinal direction.

[0017] The above summary of the invention does not list all of the features necessary for the present invention, and subcombinations of these features may also constitute inventions. [Effects of the Invention]

[0018] According to the present invention, by changing the angle of the connecting portion of two adjacent furring strips, it is possible to easily bend the furring strips to suit the installation environment of the fence. Furthermore, according to the present invention, it is possible to reduce the number of supports that are erected at the positions where the furring strips are bent, which was previously required. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a reference diagram showing one form of a fence installed using fence furring strips according to this embodiment. [Figure 2] FIG. 1 is a reference perspective view showing the entire first furring strip and the second furring strip according to this embodiment. [Figure 3] FIG. 1 is a perspective view showing a state in which adjacent furring strips are connected together and used at the upper edge of a fence according to this embodiment. [Figure 4] FIG. 1 is a perspective view of a fence furring strip according to an embodiment of the present invention, showing a state before adjacent furring strips are connected together; [Figure 5] FIG. 5(a) is a front view of a fence furring strip according to this embodiment, seen from the inside in the width direction, showing the state before adjacent furring strips are connected, and FIG. 5(b) is a plan view of a fence furring strip seen from the inside in the height direction. [Figure 6] FIG. 1 is an exploded perspective view showing a joint hinge according to an embodiment of the present invention; [Figure 7] XX cross section of Figure 5(a) [Figure 8]FIG. 8(a) is a front view of a fence furring strip according to this embodiment, seen from the outside in the width direction, showing the fence furring strip bent outward in the height direction; and FIG. 8(b) is a front view of a fence furring strip bent inward in the height direction, seen from the outside in the width direction. [Figure 9] Reference diagram showing a method for fixing a net to a fence furring strip according to the present embodiment. [Figure 10] A reference perspective view showing a conventional method for connecting furring strips for fences DETAILED DESCRIPTION OF THE INVENTION

[0020] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0021] FIG. 1 is a reference diagram showing one form of fence installed using fence furring strips according to this embodiment, and FIG. 2 is a reference perspective view showing the entire first furring strip and second furring strip according to this embodiment. In this specification, the leading end and trailing end in the longitudinal direction are defined as the directions and orientations of the arrows shown in FIG. 2. In this specification, the height direction, width direction, and the inside and outside of the fence furring strip in the height direction and width direction are defined as the directions and orientations of the arrows shown in FIG. 2. In this specification, the front view and plan view of the fence furring strip are defined as views seen from the direction of the arrows shown in FIG. 2.

[0022] As shown in Figure 1, the fence furring strip 1 of this embodiment is installed between posts 2 erected at intervals on the ground at the height that forms the upper and lower edges of the fence 100, and secures the net 3.

[0023] As shown in Figure 1, for example, the posts 2 include main posts 2a with netting 3 on both sides and a generally V-shaped cross section, and end posts 2b with netting 3 on one side and a generally L-shaped cross section. Both the main posts 2a and end posts 2b are formed, for example, from general structural rolled steel. Furthermore, the main posts 2a and end posts 2b are provided with through-holes for passing bolts at the heights that correspond to the upper and lower edges of the fence 100, and the fence furring strips 1 are attached to the posts 2 using bolts that pass through the through-holes and fasteners (not shown).

[0024] As an example, the net 3 is a wire mesh made from iron wires that have been processed into a series of mountains and woven together to form a diamond-shaped mesh. The mesh joints are not fixed by welding or other means, so they have shock absorption properties. As shown in Figure 9, the net 3 has iron wires 54 threaded through the upper and lower edges, and is attached by hooking the iron wires 54 onto the net claws 51 of the fence furring strips 1, which will be described later.

[0025] As shown in FIG. 3, the fence furring strips 1 are formed by longitudinally connecting the leading end (one end in the claims) of a first furring strip 1a and the rear end (the other end in the claims) of a second furring strip 1b, which are adjacent fence furring strips. FIG. 4 is a perspective view showing the first furring strip 1a and the second furring strip 1b before they are connected. In this embodiment, the leading end of the first furring strip 1a and the leading end of the second furring strip 1b have the same shape, and the rear end of the first furring strip 1a and the rear end of the second furring strip 1b also have the same shape. Therefore, by continuously connecting the first furring strip 1a and the second furring strip 1b in the longitudinal direction, a continuous furring strip of the required length can be formed.

[0026] As shown in FIG. 4, the first furring strip 1a and the second furring strip 1b are elongated components with a generally L-shaped cross section, with side lengths A and B and a thickness t, and lengths L1 and L2, respectively. The first furring strip 1a and the second furring strip 1b are formed, for example, from general structural rolled steel. To prevent corrosion, they are preferably galvanized or electrostatically powder coated with a polyester resin base. In this specification, the horizontally positioned sides of the first furring strip 1a and the second furring strip 1b are referred to as horizontal sides 10a and 10b, and the vertically positioned sides are referred to as vertical sides 20a and 20b, depending on the mounting orientation of the fencing 100. In this embodiment, the side length A of the horizontal sides 10a and 10b and the side length B of the vertical sides 20a and 20b are preferably the same length. In the following description, the fence furring strip 1 is attached to the upper edge of the fence 100 as shown in FIG.

[0027] Figure 5(a) is a front view of a furring strip for a fence according to this embodiment, seen from the outside in the width direction, showing the state before adjacent furring strips are connected, and Figure 5(b) is a plan view of the furring strip seen from the outside in the height direction.

[0028] 5(a) and 5(b), a joint hinge 30 is attached to the tip of the first furring strip 1a. The joint hinge 30 is attached by passing bolts through a plurality of first connecting holes 11a formed at the tip of the horizontal side 10a and a plurality of first through holes 31c formed in a first plate portion 31a (described later), and tightening the bolts with nuts.

[0029] FIG. 6 is an exploded perspective view showing the joint hinge 30 according to this embodiment.

[0030] As shown in Fig. 6, the joint hinge 30 is composed of a first wing member 31, a second wing member 32, a core rod 33, a washer 34, and a split pin 35. In the following description of the joint hinge 30, the leading and trailing ends in the longitudinal direction, and the inside and outside in the width and height directions, are defined as the directions of the arrows shown in Fig. 6, similar to the directions defined for the first furring strip 1a and the second furring strip 1b to which the joint hinge 30 is attached, as shown in Fig. 2.

[0031] The first blade member 31 includes a first plate portion 31a that contacts the inner surface of the horizontal edge 10a of the first furring strip 1a, and a first shaft tube portion 31b that rotatably holds the core rod 33. The first blade member 31 is made of, for example, a steel material such as SPCC or SPHC, or stainless steel.

[0032] As shown in FIG. 6, the first plate portion 31a is a plate-shaped portion and has a plurality of first through-holes 31c which are elongated holes extending in the longitudinal direction.

[0033] The first cylindrical shaft portion 31b is a cylinder having an axis extending in the width direction and is formed integrally with the first plate portion 31a. The axis of the first cylindrical shaft portion 31b is formed so that it is located on the tip side in the longitudinal direction and on the outer side in the height direction with respect to the first plate portion 31a. Furthermore, the length of the first cylindrical shaft portion 31b is approximately half the size of the first plate portion 31a in the width direction, and it is formed so that it is located on the outer side in the width direction of the first plate portion 31a.

[0034] The second wing member 32 includes a second plate portion 32a that abuts against the inner surface of the horizontal edge 10b of the second furring strip 1b when the first furring strip 1a and the second furring strip 1b are connected, and a second shaft tube portion 32b that rotatably holds the core rod 33. The second wing member 32 is made of, for example, a steel material such as SPCC or SPHC, or stainless steel.

[0035] As shown in FIG. 6, the second plate portion 32a is a plate-shaped portion and has a plurality of second through-holes 32c which are elongated holes extending in the longitudinal direction.

[0036] The second shaft tube portion 32b is a cylinder with an axis extending in the width direction and is formed integrally with the second plate portion 32a. The axis of the second shaft tube portion 32b is positioned toward the rear end of the second plate portion 32a in the longitudinal direction and outward in the height direction. The length of the second shaft tube portion 32b is approximately half the width of the second plate portion 32a and is positioned inward in the width direction of the second plate portion 32a. When the first furring strip 1a and the second furring strip 1b are connected, the aesthetic appearance of the connected fence furring strip 1 can be maintained if the horizontal edges 10a and 10b are positioned within the same imaginary plane G, as shown in FIG. 5(a). Therefore, it is preferable that the second cylindrical portion 32b is formed so that the height of its axis from the second plate portion 32a is equal to the height of the axis of the first cylindrical portion 31b from the first plate portion 31a.

[0037] In this embodiment, it is preferable that the first wing member 31 and the second wing member 32 have the same shape and are formed so that they can be used by simply switching the longitudinal direction, in order to reduce manufacturing costs.

[0038] 6, the core rod 33 has a shaft portion 33a that penetrates the first shaft cylindrical portion 31b and the second shaft cylindrical portion 32b, and a head portion 33b formed at the inner end of the shaft portion 33a in the width direction. The core rod 33 is made of an iron-based material, stainless steel, or the like.

[0039] As shown in FIG. 6, the shaft portion 33a has a pin hole 33c at the outer end in the width direction, through which a split pin 35 passes.

[0040] The joint hinge 30 is assembled by passing the shaft portion 33a of the core rod 33 through the second shaft cylinder portion 32b, the first shaft cylinder portion 31b, and the washer 34 in that order, and attaching a split pin 35 to prevent the washer 34 from coming loose. The joint hinge 30 having such a structure is configured so that the second wing member 32 is rotatable relative to the first wing member 31 around the shaft portion 33a.

[0041] As shown in Fig. 5(b), the rear end of the second furring strip 1b is formed with multiple second connecting holes 11b, which are elongated holes extending in the longitudinal direction and through which bolts are passed when connecting the first furring strip 1a and the second furring strip 1b. When the first furring strip 1a and the second furring strip 1b are connected, if the vertical edges 20a and 20b are located on the same imaginary plane F, as shown in Fig. 5(b), the aesthetic appearance of the fence furring strip 1 after connection can be maintained. Therefore, it is preferable that the multiple second connecting holes 11b be formed at positions corresponding to the multiple second through holes 32c formed in the second plate portion 32a so that the vertical edges 20a and 20b are located on the same imaginary plane F.

[0042] Next, the shape of the fence furring strip 1 other than the connecting portions in this embodiment will be described.

[0043] As shown in Figure 2, multiple net claw portions 51 protruding toward the inside in the width direction are formed at regular intervals on the vertical edge 20a of the first furring strip 1a and the vertical edge 20b of the second furring strip 1b.

[0044] 7, the net claw portions 51 have rising portions 52 that protrude inward in the width direction from the inner surfaces of the vertical sides 20a, 20b, and engaging portions 53 that extend from the rising portions 52 toward the horizontal sides 10a, 10b. The net claw portions 51 are formed by shearing and plastically deforming parts of the vertical sides 20a, 20b, for example, by press working.

[0045] The rising portions 52 are formed so that the surfaces of the engaging portions 53 facing outward in the width direction are separated from the inner surfaces of the vertical sides 20a, 20b by a distance necessary for suspending the iron wires 54 for attaching the net 3. In this specification, the distance between the surfaces of the engaging portions 53 facing outward in the width direction and the inner surfaces of the vertical sides 20a, 20b is defined as dimension S2. The rising portions 52 are formed so that dimension S2 is larger than the wire diameter of the iron wires 54. Furthermore, the rising portions 52 may be formed so as to be inclined with respect to the vertical sides 20a, 20b, as shown in FIG. 7, or so as to be perpendicular to the vertical sides 20a, 20b.

[0046] When attaching the net 3, iron wires 54 pass between the engaging portions 53 and the inner surfaces of the horizontal sides 10a and 10b. Therefore, in order to prevent damage to the iron wires 54, it is preferable that the engaging portions 53 are formed so that their tips are semicircular, as shown in FIG. 5(a). In this specification, the distance from the tips of the engaging portions 53 to the inner surfaces of the horizontal sides 10a and 10b is defined as dimension S3, as shown in FIG. 6. Dimension S3 is larger than the wire diameter of the iron wires 54 used to attach the net 3, and is formed to be a distance sufficient to allow the iron wires 54 to pass through.

[0047] By providing a plurality of such net claw portions 51 along the entire length of the fence furring strip 1, the net 3 can be fixed at the top and bottom of the fence 100.

[0048] In this embodiment, it has been explained that the net claw portion 51 is formed by shearing a portion of the vertical edges 20a, 20b by press processing and plastically deforming it, but the method of providing the net claw portion 51 is not limited to this, and it may also be formed from a material equivalent to that of the first furring strip 1a and the second furring strip 1b and attached to the vertical edges 20a, 20b by welding.

[0049] The first furring strip 1a and the second furring strip 1b, each having the above-described characteristics, are connected by abutting the second plate portion 32a against the inner surface of the rear end of the second furring strip 1b, passing bolts through the second connecting hole portion 11b and the second through-hole 32c, and tightening them with nuts. During the connection process, either the first furring strip 1a or the second furring strip 1b is temporarily fixed to the already-installed support 2 with fasteners or claws (not shown). Therefore, the temporarily fixed first furring strip 1a or second furring strip 1b can move longitudinally, but there is no risk of it falling to the ground during the connection process.

[0050] As shown in Figures 8(a) and 8(b), the fence furring strips 1 connected as described above can be bent relative to each other in the height direction, with the shaft 33a of the core rod 33 as the axis of rotation, allowing the first furring strip 1a and the second furring strip 1b to be bent inward in the height direction relative to the first furring strip 1a. As shown in Figure 8(b), when the second furring strip 1b is bent inward in the height direction relative to the first furring strip 1a, the angle of bending can be increased by sliding the bolts inside the first connecting hole 11a, the second connecting hole 11b, the first through hole 31c, and the second through hole 32c formed in the longitudinally extending slots to widen the gap between the first furring strip 1a and the second furring strip 1b.

[0051] As described above, the fence furring strip 1 according to the present invention can be easily bent by connecting the first furring strip 1a and the second furring strip 1b via the joint hinge 30 attached to the tip of the first furring strip 1a. In this way, bending is possible only at the connection between the first furring strip 1a and the second furring strip 1b, so the support posts that were previously required at the positions where the furring strips were to bend can be eliminated, thereby reducing the cost of installing the fence 100.

[0052] In the above description, the first shaft tube portion 31b is integrally formed with the first plate portion 31a, and the first blade member 31 is attached to the tip of the horizontal edge 10a of the first furring strip 1a. However, the configuration of the first shaft tube portion 31b is not limited to this. The first shaft tube portion 31b may be directly formed at the tip of the horizontal edge 10a of the first furring strip 1a. In this case, the first connecting hole 11a is unnecessary. In addition, in this embodiment, a pin hole 33c is formed at the widthwise outer end of the shaft portion 33a, and a split pin 35 is used to prevent the washer 34 from slipping out. However, this method of preventing the washer 34 from slipping out is not limited to this. For example, a groove may be formed along the circumferential direction at the widthwise outer end of the shaft portion 33a, and an E-ring may be used to prevent the washer 34 from slipping out. Furthermore, although the above description has been given with respect to the case where one first shaft tube portion 31b and one second shaft tube portion 32b are formed in each of the first blade member 31 and the second blade member 32, the number of first shaft tube portions 31b and second shaft tube portions 32b is not limited to this, and multiple first shaft tube portions 31b and multiple second shaft tube portions 32b may be formed, or different numbers of first shaft tube portions 31b and second shaft tube portions 32b may be formed. In addition, although the joint hinge 30 is attached to the horizontal edge 10a of the first furring strip 1a and the second connecting hole 11b is formed in the horizontal edge 10b of the second furring strip 1b in the above description, the positions of the joint hinge 30 and the second connecting hole 11b are not limited thereto. The joint hinge 30 may be attached to the vertical edge 20a of the first furring strip 1a and the second connecting hole 11b may be formed in the vertical edge 20b of the second furring strip 1b. In this case, the second furring strip 1b can be bent in the width direction relative to the first furring strip 1a. Furthermore, although the side length A of the horizontal edges 10a, 10b and the side length B of the vertical edges 20a, 20b are the same in the above description, the side lengths A and B may be different lengths. It is clear from the claims that such modifications and improvements are also within the technical scope of the present invention. [Explanation of symbols]

[0053] 1 Fence truss 1a First furring strip 1b Second furring strip 2 pillars 2a main pillar 2b End post 3. Net 10a, 10b horizontal edges 11a First connecting hole 11b Second connecting hole 30 Joint hinge 31 First feather member 31a First plate portion 31b First barrel portion 31c First through hole 32 Second wing member 32a Second plate section 32b Second barrel portion 32c Second through hole 33 Core rod 33a Shaft 33b head 33c pin hole 34 Washer 35 Cotter pin 20a, 20b vertical edges 51 Net claw 52 Rising section 53 Engagement part 54 Iron Wire 100 Fence

Claims

1. The bag includes a first furring strip having a horizontal side and a vertical side extending along the longitudinal direction, and a second furring strip having a horizontal side and a vertical side extending along the longitudinal direction, At one end of the first furring strip, The rotor includes a first barrel portion having an axis in a direction intersecting the longitudinal direction, a core rod penetrating the first barrel portion, and a second blade member attached to be rotatable around the core rod, The second wing member includes: a second cylindrical portion through which the core rod passes, and a second plate portion in which a plurality of second through holes are formed, The first furring strip and the second furring strip are A fence furring strip, characterized in that the second plate portion overlaps the inside of the second furring strip and is connected to it in the longitudinal direction.

2. The fence furring strip according to claim 1, One end of the first furring strip and one end of the second furring strip have the same shape, A furring strip for a fence, characterized in that the other end of the first furring strip and the other end of the second furring strip have the same shape.

3. The fence furring strip according to claim 1 or 2, The outer surface of the horizontal edge of the first furring strip and the outer surface of the horizontal edge of the second furring strip are located in the same imaginary plane, A furring strip for a fence, characterized in that the outer surface of the vertical edge of the first furring strip and the outer surface of the vertical edge of the second furring strip are connected so as to be located within the same imaginary plane.

4. The fence furring strip according to any one of claims 1 to 3, A plurality of first connecting holes are formed at one end of the first furring strip, and a first wing member is attached to the first connecting hole. the first blade member has the first barrel portion and a first plate portion in which a plurality of first through holes corresponding to the first connecting hole portions are formed, A fence furring strip characterized in that the first wing member has the same shape as the second wing member.

5. The fence furring strip according to claim 4, At the other end of the second furring strip, A fence furring strip characterized in that a plurality of second connecting holes corresponding to the second through holes are formed.

6. The fence furring strip according to claim 5, A fence furring strip characterized in that the first through hole, the second through hole, the first connecting hole portion, and the second connecting hole portion are long holes extending in the longitudinal direction.

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