fence

The fence design addresses the issue of rattling and instability in ninja-return fences by using a moving mechanism with screw members and nut members to securely attach the second support column to the first, enhancing stability and preventing bolt loosening.

JP7669212B2Active Publication Date: 2025-04-28SEKISUI JUSHI KK
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Patent Information

Application Number
JP2021109781
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-01
Publication Date
2025-04-28
Estimated Expiration
2041-07-01

AI Technical Summary

Technical Problem

Existing fence designs, such as the ninja-return fence, face issues with rattling and potential loosening of support bolts due to slight manufacturing errors, leading to instability and potential damage.

Method used

The fence design incorporates a second cylindrical support column with a vertically inserted connection portion and an inclined piece, featuring a moving mechanism with screw members and nut members to securely fix the second support column to the first support column, preventing rattling.

Benefits of technology

This design effectively suppresses rattling between the second and first support columns, ensuring stability and preventing bolt loosening, even with slight manufacturing errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fence comprising a post which hardly shakes after attaching a second post to a first post erected on an installation face.SOLUTION: A fence comprises: a post having a cylindrical first post 30 and a second post 40 attached to the first post 30; and a panel material attached between the posts. The second post 40 comprises a fixing portion 50 having a pair of plate-like portions 51 inserted into the first post 30 and vertically formed to be arranged side by side and sloped pieces 52 formed at both side ends of the plate-like portions 51 in a direction going away from the other plate-like portion 51. The fixing portion 50 has moving means which moves the plate-like portions 51 toward an inner peripheral face 31 of the first post 30.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a fence that is installed along the boundary between properties of a house, condominium, etc., or along the boundary between neighboring properties. [Background technology]

[0002] Generally, fences that are installed along the boundaries of the grounds of houses, factories, etc., are made by fixing panel materials made of mesh panels, lattice material, metal, wood, synthetic resin, etc. to posts and connecting a number of these together in the width direction (left and right direction).

[0003] Among these, in order to prevent people from climbing over the fence from outside, a so-called sneak-guard type fence is used, in which panel material is arranged in multiple vertical rows with the topmost wall panel angled outside the premises.

[0004] In the case of a shinobi-gaeshi type fence, it was necessary to use a post with its upper end tilted outward from the site in order to secure the top panel material. This required a post with a partially bent part, which made it difficult to transport the post.

[0005] Therefore, in this application, Patent Document 1 proposes a fence with a sneak guard, which comprises first posts erected at an appropriate interval on the ground surface, a first fence panel (panel material) erected between the first posts, a second post attached in a removable manner to the upper ends of the first posts, and a second fence panel (panel material) erected between the second posts, the first posts being made of a tubular body and the second post being provided at its lower end with an engaging portion that engages with the inner surface of the first post, and this engaging portion being inserted and fixed into the upper end of the first post. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2003-301629 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0007] By the way, in Patent Document 1, it is possible to easily add additional posts to the posts of an existing fence. In addition, in the case of a newly constructed fence, the first post and the second post can be transported separately, so that the effect of improving transportation efficiency can be expected. On the other hand, if the engaging portion of the second post that engages with the inner surface of the first post is designed to fit snugly with the inner surface of the first post, slight errors may occur in manufacturing and processing, so that the engaging portion may become large relative to the inner surface of the first post, and there is a risk that the engaging portion cannot be inserted into the first post. Therefore, the outer shape of the locking portion is usually made slightly smaller than the inner surface of the first post. This makes it easier to insert the engaging portion into the first post, but after insertion, a gap is likely to occur between the engaging portion and the inner surface of the first post. Therefore, even if the first post and the engaging portion are fixed via a bolt, the second post is likely to rattle relative to the first post, so that the bolt may loosen, further increasing the rattle, and the post may be damaged or deformed.

[0008] The present invention solves the above-mentioned problems and provides a fence equipped with posts that are less likely to wobble after a second post is attached to a first post that stands on an installation surface. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention has the following configuration: That is, the fence according to the present invention is a fence including a support having a cylindrical first support and a second support attached to the first support, and a panel material attached between the supports, and the second support includes a pair of plate-like parts formed in the vertical direction and arranged side by side and inserted into the first support, and inclined pieces formed on both side ends of the plate-like parts in directions away from the other plate-like parts. of The fixing portion has a moving means for moving the inclined piece toward the inner circumferential surface of the first support. The moving means includes a screw member that penetrates the plate-like portion and the first support column, and a nut member that is fixed to the plate-like portion and into which the screw member is screwed. Two screw members and two nut members are disposed on one plate-like portion. The present invention is characterized in that: The fence of the present invention is a fence comprising posts having a cylindrical first post and a second post attached to the first post, and a panel material attached between the posts, wherein the second post has a fixed part having a pair of plate-like portions formed in the vertical direction and arranged side by side and inserted into the first post, and an inclined piece formed at each side end of the plate-like portion in a direction away from the other plate-like portion, the fixed part having a moving means for moving the inclined piece toward the inner surface of the first post, the moving means comprising a screw member that passes through the plate-like portion and the first post and has a head capable of abutting against the outer surface of the first post, and a nut member that is fixed to the plate-like portion and into which the screw member is screwed.

[0010] In the present invention, the first support pillar may have a rectangular cross section, and the inclined piece may be formed on an inner circumferential surface of the first support pillar so as to face a corner portion.

[0011] In addition, in the present invention, the moving means may include a screw member that penetrates the plate-shaped portion and the first support, and a nut member that is fixed to the plate-shaped portion and into which the screw member is screwed, and two of the screw members and nut members may be arranged on one plate-shaped portion. Effect of the Invention

[0012] According to the present invention, by operating the moving means, the plate-shaped portion can be moved toward the inner surface of the first support so that a portion of the fixed portion is in abutting or pressed against the first support, thereby suppressing rattling of the second support relative to the first support. [Brief description of the drawings]

[0013] [Figure 1] 1 is a front view showing an embodiment of a fence according to the present invention. [Diagram 2] FIG. 2 is a side view of FIG. [Diagram 3] FIG. 2 is an exploded explanatory view of the support column of FIG. [Figure 4] FIG. 4 is an explanatory diagram of the second support column of FIG. 3. [Diagram 5] FIG. 5 is a side view of FIG. [Figure 6] 10 is an explanatory diagram showing a fixing structure of a fixing portion of a second support pillar relative to a first support pillar. FIG. [Figure 7] FIG. 7 is an exploded explanatory view of FIG. 6. [Figure 8] 13 is an explanatory diagram showing another fixing structure of the fixing portion of the second support pillar relative to the first support pillar. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. Fig. 1 is a front view showing one embodiment of a fence according to the present invention, and Fig. 2 is a side view. In the drawings, 10 denotes posts, 20 denotes a panel material attached between the posts 10, and 30 and 40 denote a first post and a second post constituting the posts 10. Here, the left-right direction, up-down direction, and front-rear direction of the fence 100 are the same directions as the left-right direction, up-down direction, and front-rear direction shown in Fig. 1 and Fig. 2 unless otherwise specified, and the following description will be based on this.

[0015] The pillars 10 are erected at an appropriate interval on the installation surface, and comprise a first pillar 30 whose lower end is buried in the installation surface and erected in the vertical direction, and a second pillar 40 attached to the upper end of the first pillar 30.

[0016] The first support 30 is cylindrical, and in this embodiment, a rectangular steel pipe is used. The first support 30 is attached between the first support 30. The second support 40 has a connection part 41 connected to the first support 30, and an inclined part 42 formed from the upper end of the connection part 41 toward an oblique upward direction that intersects with the first support 30. In this embodiment, the connection part 41 and the inclined part 42 are both cylindrical and rectangular steel pipes, and the lower end of the inclined part 42 and the upper end of the connection part 41 are cut obliquely at a predetermined angle, and the cut parts are joined. In this embodiment, the cross-sectional shapes of the first support 30, the connection part 41, and the inclined part 42 are the same.

[0017] The panel material 20 is attached between the posts 10, and in this embodiment, plate-shaped panel materials 20a, 20b are attached between the first posts 30 and the second posts 40. Note that, although not shown, other forms of the panel material 20 include, for example, a mesh-shaped panel material and a mesh-shaped panel having barbed wire.

[0018] In this embodiment, the inclined portion 42 of the second support 40 is inclined 30 degrees forward with respect to the first support 30, and therefore the panel material 20b is also inclined 30 degrees forward. This makes it difficult for an intruder to climb over the panel material 20b from the front side of the fence 100 and enter the property at the rear.

[0019] Next, the mounting structure of the second support column 40 relative to the first support column 30 will be described. Fig. 3 is an exploded explanatory view of the support column 10 in Fig. 1, Fig. 4 is an explanatory view of the second support column 40 in Fig. 3, Fig. 5 is a side view of Fig. 4, Fig. 6 is an explanatory view showing the fixing structure of the fixing part 50 of the second support column 40 relative to the first support column 30, and Fig. 7 is an exploded explanatory view of Fig. 6.

[0020] The second support 40 has a fixing portion 50 extending downward from the connection portion 41, and this fixing portion 50 is inserted into the first support 30. The fixing portion 50 has a pair of plate-shaped portions 51 formed in the vertical direction and arranged side by side, and inclined pieces 52 formed at both ends of the plate-shaped portion 51 in a direction away from the other plate-shaped portion 51, and the inclined pieces 52 at both ends are arranged in a V-shape. The upper end of each plate-shaped portion 51 is inserted inside the connection portion 41, and the tip end of the inclined piece 52 in the width direction and the inner peripheral surface of the connection portion 41 are fixed by welding. In addition, the cross-sectional shape of the support 10 according to this embodiment is a rectangle that is long in the front-rear direction, and each plate-shaped portion 51 is arranged along the front-rear direction.

[0021] In this embodiment, the inclined pieces 52 are welded around the corners of the inner surface of the connection portion 41, so that the fixing portion 50 inserted into the first support 30 is positioned so that the widthwise tips of the inclined pieces 52 abut against the corresponding corners 31a or so that a small gap is formed; and since the lower ends of the inclined pieces 52 are chamfered, when the fixing portion 50 is inserted into the first support 30, the outer shape of the lower end of the fixing portion 50 is smaller than the outer shape of the inner surface 31, so that it can be inserted smoothly.

[0022] The fixed part 50 has a moving means 60 for moving the plate-like part 51 towards the inner peripheral surface 31, and by operating the moving means 60, the four inclined pieces 52 of the fixed part 50 inserted into the first support 30 are brought into contact or pressure-welded with the inner peripheral surface 31. This fixes the fixed part 50 within the first support 30. This makes it less likely that the second support 40 will rattle relative to the first support 30.

[0023] In this embodiment, when the inclined pieces 52 are inserted into the first support 30, the total of four inclined pieces 52 formed on each of the two plate-shaped portions 51 are formed to face toward the four corner portions 31a of the inner surface 31 of the first support 30.

[0024] As a result, by operating the moving means 60, the four inclined pieces 52 of the fixing part 50 inserted into the first support 30 are brought into contact or pressed against the corresponding corners 31a. Therefore, the movement of the fixing part 50 in the front-rear and left-right directions within the first support 30 is restricted, making it even more difficult for the second support 40 to wobble relative to the first support 30.

[0025] Next, the moving means 60 will be described in detail. The moving means 60 has a screw member 61 penetrating the first support 30 and the plate-shaped portion 51, and a nut member 62 fixed to the plate-shaped portion 51 and into which the screw member 61 is screwed. Specifically, the first support 30 has a through hole 32 penetrating in the thickness direction. Furthermore, the plate-shaped portion 51 has a through hole 53 penetrating in the thickness direction at a position corresponding to the through hole 32 when the fixing portion 50 is inserted into the first support 30. A nut member 62 having a female thread is fixed near the through hole 53. The screw member 61 has a head 61a and a male thread portion 61b on which a male thread is formed, and the male thread portion 61b is inserted from the through hole 32 toward the through hole 53 and screwed into the nut member 62.

[0026] As the screwing operation proceeds, the head 61a of the screw member 61 comes into contact with the outer circumferential surface of the first support 30. As the screwing operation proceeds further, the plate-shaped portion 51 moves relatively toward the first support 30, and each of the inclined pieces 52 comes into contact with or presses against each corner portion 31a of the inner circumferential surface 31. As a result, the fixing portion 50 of the second support 40 is fixed to the inner circumferential surface 31 of the first support 30.

[0027] In this embodiment, each plate-like portion 51 has two moving means 60, so that any of the four inclined pieces 52 of the two plate-like portions 51 can be brought into contact with or pressed against the corresponding corner portion 31a. That is, through holes 32 are formed at both ends in the width direction of the plate-like portion 51, and the moving means 60 are disposed therein, so that the inclined piece 52 closest to the moving means 60 can be easily brought into contact with or pressed against the corresponding corner portion 31a. As a result, the fixing portion 50 of the second support 40 is firmly fixed to the inner peripheral surface 31 of the first support 30.

[0028] Moreover, the four moving means 60 corresponding to one fixed portion 50 are disposed at the same height in the up-down direction. Furthermore, in this embodiment, of the four moving means 60, the screw members 61 of the two moving means 60 disposed on the front side are used to fix the mounting member 70 for mounting the panel material 20a to the first support 30.

[0029] Generally, as in this embodiment, the sneak-back type fence has a structure in which the sneak-back part slopes outward from the site (external sneak), but depending on the conditions of the installation location, for example, where protrusion outside the site is restricted, a structure in which the sneak-back part slopes inward (internal sneak) may be installed. Also, since the panel materials 20a, 20b are usually arranged in the center in the front-to-rear direction of the first support post 30 and the second support post 40 as in this embodiment, the mounting member 70 is attached biased to the front or rear side of the first support post 30.

[0030] Therefore, in this embodiment, the first support 30 has a total of four through holes 32 formed at symmetrical positions in the front-rear direction and at the same height positions on the front, rear, left and right. If the first support 30 is a rectangular steel pipe as in this embodiment, there is a risk that the front and rear will be reversed during installation, but even in that case, the installation work of the mounting member 70 is not hindered.

[0031] Although the fence 100 of the present invention has been described above based on the embodiments, the present invention is not limited to these embodiments. Various modifications conceived by a person skilled in the art within the scope of the present invention are also included in the scope of the present invention. Specifically, in the fixing part 50, the plate-shaped part 51 shown in Figs. 1 to 7 is arranged along the front-rear direction, which is the longitudinal direction of the cross section of the first support 30, but as shown in Fig. 8, the plate-shaped part 51 may be arranged along the left-right direction, which is the short side direction of the cross section of the first support 30. That is, Fig. 8 is an explanatory diagram showing another fixing structure in the fixing part 50 of the second support 40 to the first support 30.

[0032] 1 to 7 in that through holes 32 are formed on the front and rear sides of the first support 30, and a screw member 61 is inserted into the through holes 32. The screw member 61 is similarly inserted into a through hole 53 of the plate-shaped portion 51 and screwed into a nut member 62.

[0033] In this case, if it is difficult to form the through holes 53 side by side in the left-right direction, it is preferable to form them side by side in the up-down direction. In Fig. 8, the same components as those already explained are given the same reference numerals, and their explanation will be omitted. Also, the mounting member 70 is attached to the first support 30 by using a bolt 71 and a nut 72 at a height position different from the through hole 32 and at a position where the bolt 71 and the screw member 61 do not interfere with each other.

[0034] The fence 100 of the present invention is a fence 100 comprising posts 10 having a cylindrical first post 30 and a second post 40 attached to the first post 30, and a panel material 20 attached between the posts 10, wherein the second post 40 is provided with a fixed part 50 having a pair of plate-like portions 51 formed in the vertical direction and arranged side by side and inserted into the first post 30, and inclined pieces 52 formed at both side ends of the plate-like portion 51 in a direction away from the other plate-like portion 51, and the fixed part 50 is characterized in that it has a moving means 60 for moving the inclined pieces 52 toward the inner surface 31 of the first post 30.

[0035] This makes it possible to operate the moving means 60 to move the plate-shaped portion 51 toward the inner surface 31 of the first support 30 so that a portion of the fixed portion 50 is in abutting or pressed against it, thereby suppressing rattling of the second support 40 relative to the first support 30.

[0036] In the present invention, the first support pillar 30 may have a rectangular cross section, and the inclined piece 52 may be formed on the inner circumferential surface 31 of the first support pillar 30 so as to face the corner portion 31a.

[0037] As a result, when the moving means 60 is operated, the inclined pieces 52 abut or are pressed against the corners 31a, respectively, so that the movement of the fixed portion 50 in the front-to-back and left-to-right directions within the first support 30 is restricted, making it even less likely that the second support 40 will wobble relative to the first support 30.

[0038] Furthermore, in the present invention, the moving means 60 includes a screw member 61 penetrating the plate-shaped portion 51 and the first support 30, and a nut member 62 fixed to the plate-shaped portion 51 and into which the screw member 61 is screwed, and two screw members 61 and two nut members 62 may be arranged on one plate-shaped portion 51.

[0039] As a result, by operating each moving means 60, the inclined piece 52 closest to the moving means 60 can be easily abutted or pressed against the corresponding corner portion 31a, thereby firmly fixing the fixed portion 50 of the second support 40 to the inner surface 31 of the first support 30. [Industrial Applicability]

[0040] According to the present invention, when connecting one post to another, the construction is easy and the rattling of the connected post can be suppressed, so it can be suitably applied to posts with inclined upper ends, such as a sneak-back fence. In addition, even if the fence is relatively tall, it can be suitably applied to connecting multiple short posts instead of preparing one long post. [Explanation of symbols]

[0041] 10 pillars 20 Panel material 20a Panel material 20b Panel material 30 1st pillar 31 Inner surface 31a corner 32 Through hole 40 Second pillar 41 Connection 42 Slope 50 Fixed part 51 Plate-shaped part 52 Inclined piece 53 Through hole 60 Transportation 61 Screw member 61a head 61b Male thread 62 Nut material 70 Mounting material 71 Volts 72 Nut 100 Fence

Claims

1. A support having a cylindrical first support and a second support attached to the first support; and a panel material attached between the posts, the second support includes a fixing portion having a pair of plate-like portions formed in the up-down direction and arranged side by side and inserted into the first support, and inclined pieces formed at both side ends of the plate-like portions in a direction away from the other plate-like portions, the fixing portion has a moving means for moving the inclined piece toward an inner circumferential surface of the first support, The moving means is A screw member that penetrates the plate-shaped portion and the first support pillar; a nut member fixed to the plate-like portion and into which the screw member is screwed, The screw member and the nut member are arranged two by two on one plate-shaped portion. A fence characterized by:

2. A support having a cylindrical first support and a second support attached to the first support; A panel material attached between the posts; A fence comprising: the second support includes a pair of plate-like portions formed in the vertical direction and arranged side by side and inserted into the first support, and a fixing portion having inclined pieces formed at both side ends of the plate-like portions in a direction away from the other plate-like portions, the fixing portion has a moving means for moving the inclined piece toward an inner circumferential surface of the first support, The moving means is a screw member that penetrates the plate-shaped portion and the first support and has a head that can abut against an outer circumferential surface of the first support; a nut member fixed to the plate-like portion and into which the screw member is screwed. A fence characterized by:

3. The first support pillar has a rectangular cross section, The inclined piece is formed on the inner circumferential surface of the first support so as to face a corner portion.

3. A fence as claimed in claim 1 or 2.

Citation Information

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