JP2008285919A - Fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fence excelling in durability and soundly usable over a long period of time with no risk of local damage even if repeatedly receiving wind load and large load by an impact object or the like. <P>SOLUTION: Support ropes 3 are horizontally hung between posts 2, 2 erected with a space, and the upper sides of a plurality of perforated quadrangular panels 4 are connected and hung along the support ropes 3 in parallel with the support ropes 3. The vertical sides 4b of the adjoining ends of the plurality of perforated panels 4 are arranged to overlap each other. Further, both ends of the upper sides of the perforated panels 4 and the support ropes 3 are connected by a lifting structure which holds a parallel state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field of a fence constructed for the purpose of windproof, snowproof, dustproof, seawater splash, ballproof, throwing prevention, beastproofing, fallen object prevention, etc. The present invention relates to a fence that is excellent in durability and can be used soundly over a long period of time, without being liable to local damage even when repeatedly subjected to a large load due to the above.

Conventionally, various structures and types of fences are known and implemented for the purpose of windproof, snowproof, dustproof, seawater splash, ballproof, throwing prevention, beast prevention, falling object prevention, and the like.
For example, the fence disclosed in the following Patent Document 1 is installed at an upwind position of loose materials such as coal piles, and has a configuration mainly for dust prevention. In general, the action and effect required for a fence for the purpose of dust prevention is to prevent dust from flowing out from the inside to the outside by wind current, and to prevent dust from rolling up like a vortex. For this reason, the fence disclosed in Patent Document 1 is composed of a blind lower panel, a middle panel with an aperture ratio of about 40%, and an upper panel with an aperture ratio of about 60% to form a composite fence, which flows on the leeward side of the fence. It is described that the above-mentioned problem can be solved by decelerating the frictional velocity of the wind that changes like a line with a turbulent flow generated behind the blind fence and reducing the wind pressure received by a combination of dense fences. ing.

  Further, the fence disclosed in Patent Document 2 below is also a fence mainly for dust prevention, and includes a three-dimensional including obstacles using a computer for three-dimensional local wind speed and dust scattering calculation of the scattered dust generation location. It is a fence constructed based on the height design of the fence consistently performed using the fluid analysis device in the physical domain.

JP-A-57-127079 JP 2003-293325 A

  In general, the fence is provided with rigid columns that support the panels on both sides of the panel so that the panel does not easily fall over even when subjected to wind loads or impacts. A cross member such as a rope, a wire, or a pipe connecting the two is installed. However, the fence disclosed in Patent Document 1 has no description about the support pillars and cross members, and the strength and durability against a large load such as wind load or impact object are unclear. However, even if the fence is installed with columns on both sides of the panel, and a cross member connecting the panels between the columns, the cross member that forms a catenary curve due to the weight of the panel and the end of the panel are not parallel. If the horizontal member is repeatedly subjected to a large load such as wind load, the cross member will bend and a difference in the horizontal member interval will occur between the end and the center of the cross member. There is a problem that stress concentrates on the connecting member that connects the materials and is locally damaged.

  The fence disclosed in Patent Document 2 has a configuration in which the height of the fence is designed by using a fluid analysis device in a three-dimensional physical region, and the wind load acting on the panel is No mention is made of the panel damage caused by a large load caused by an impact object or the like.

  The object of the present invention is to prevent stress concentration by connecting the supporting rope that forms a catenary curve with the weight of the perforated panel and the end of the perforated panel, in particular, a connection structure that maintains the parallel state of both. Accordingly, it is to provide a fence that can be used for a long period of time even if it is repeatedly subjected to a large load such as a wind load or an impact object by increasing the strength and durability of the perforated panel end.

  The next object of the present invention is to provide a structure in which a perforated panel subjected to a load such as a wind load or an impact force can be flexibly displaced up and down together with a supporting rope, to reduce the load, and to improve durability and soundness. It is to provide a fence with an effective configuration for maintaining the maintenance.

As a means for solving the above-mentioned problems of the prior art, the fence according to the invention described in claim 1 is:
A support rope 3 is installed in a horizontal direction between the support columns 2 and 2 which are set up at an interval, and along the support rope 3, the upper sides 4c of a plurality of perforated panels 4 having a rectangular shape are the same. It is arranged as A in which the vertical sides 4b of adjacent end portions of the plurality of perforated panels 4 are wrapped and connected in parallel with the supporting rope 3 and hung.
Furthermore, the upper edge both ends of the perforated panel 4 and the supporting rope 3 are connected by a suspension structure that maintains a parallel state.

The invention described in claim 2 is the fence described in claim 1,
The lower side 4d of the perforated panel 4 suspended by connecting the upper side 4c in parallel with the support rope 3 is also connected in parallel with the support rope 3 laid horizontally between the support columns 2 and 2. Hung,
Furthermore, the lower end portions of the perforated panel 4 and the supporting rope 3 are connected by a suspension structure that maintains a parallel state.

The invention described in claim 3 is the fence described in claim 1 or 2,
The upper side 4c or the upper side 4c and the lower side 4d of each perforated panel 4 are connected to the hole 5a provided along the upper side 4c or the upper side 4c and the lower side 4d so as to sew the support rope 3 through the spiral wire 5. Are suspended in parallel,
Further, the four corners of the perforated panel 4 are reinforced to withstand the suspension load, and the rigid members 9 and 10 attached to the reinforced part are fastened to the support rope 3 so that both ends of the upper side of the perforated panel 4 are connected. Or both ends of the upper side and both ends of the lower side are connected in parallel with the supporting rope 3.

The invention described in claim 4 is the fence described in claim 3,
Both ends of the support rope 3 are processed into a ring shape, the ring-shaped end portion 3a and the support column 2 are connected to each other in a free state by a connecting member 8, and the support rope 3 is installed on the support column 2.
The upper edge of the perforated panel 4 or the upper edge and the lower edge of the perforated panel 4 are cut into a chamfered shape that does not interfere with the ring-shaped ends 3a of the support rope 3, and The reinforcing material 7 is pasted and reinforced, and the through hole 5a provided in common to the perforated panel 4 and the reinforcing material 7 is connected and fixed through the terminal portion of the spiral wire 5. A connecting hole is provided adjacent to the fastening position, and one side of the rigid member 9 is attached to the connecting hole, and the other side of the rigid member 9 is passed through the ring-shaped end portion 3a of the support rope 3 and tightened. Then, the upper edge part of the perforated panel 4 or the upper edge part and the lower edge part are suspended and supported in parallel with the supporting rope 3.

The invention described in claim 5 is the fence described in claim 3,
The wrap portion A or the vicinity of the wrap portion A of the plurality of perforated panels 4 is reinforced by affixing the reinforcing material 11, and spiral to the through hole 5 a provided in common to the perforated panel 4 and the reinforcing material 11. Connection and fastening are performed through the terminal portion of the wire 5, and a coupling hole is provided adjacent to the fastening position, and one side of the rigid member 10 is attached to the coupling hole. The other side is wrapped around the support rope 3 and tightened, and the upper side end part of the part A where the end parts of the perforated panel 4 wrap or the upper side end part and the lower side end part are in parallel to the support rope 3. It is characterized by being supported by suspension.

The invention described in claim 6 is the fence described in any one of claims 1 to 5,
The perforated panel 4 suspended by connecting the upper side 4c or the upper side 4c and the lower side 4d in parallel with the supporting rope 3 is provided in a plurality of stages in the vertical direction between the columns 2 and 2. .

The invention described in claim 7 is the fence described in any one of claims 1 to 6,
The holes 4a of the perforated panel 4 are provided on the entire surface of the panel 4 in a regular arrangement in the vertical and horizontal directions as long oval holes 4a that are long in the direction orthogonal to the direction between the columns 2 and 2. Features.

  In the fence 1 of the present invention, a support rope 3 is installed in a horizontal direction between struts 2 and 2 which are set up at intervals, and a plurality of holes having a quadrangular shape are formed along the support rope 3. The upper side 4c and the lower side 4c of the panel 4 are suspended by being connected in parallel with the supporting rope 3, and the vertical sides 4b of adjacent end portions of the plurality of perforated panels 4 are wrapped. In the fence 1, the upper and lower ends of the perforated panel 4 and the lower ends of the perforated panel 4, which are particularly susceptible to damage due to wind loads or repeated loads due to impacts, etc., and the supporting rope 3 are kept in parallel. Since they are connected by a suspended structure, stress concentration acting on both the upper and lower ends of the perforated panel 4 can be prevented, and the strength and durability of the end of the perforated panel 4 can be increased. high Exert a force can be used to sound. Specifically, as a result of conducting a fatigue test in which a load of 200 kgf is repeatedly applied 1 million times to the fence 1 of the present invention, even at both the upper and lower ends where stress is concentrated, it is not damaged for a long period of time. It was confirmed that it can be used soundly.

  Further, the fence 1 of the present invention has a structure in which the plurality of perforated panels 4 can be displaced up and down together with the supporting rope 3 so as to avoid the acting force when subjected to a load such as wind load or impact force. Alternatively, the load can be reduced by changing freely so as to be missed, which can greatly contribute to improvement of durability and maintenance of soundness.

  In the fence according to the present invention, a supporting rope 3 is installed in a horizontal direction between struts 2, 2 standing at intervals, and a plurality of perforated panels having a rectangular shape along the supporting rope 3. The upper side 4c and the lower side 4d are connected and suspended in parallel with the supporting rope 3, and the vertical sides 4b of adjacent end portions of the plurality of perforated panels 4 are arranged to wrap. Yes. Furthermore, the both ends of the upper side and the lower side of the perforated panel 4 and the support rope 3 are connected by a suspension structure that maintains a parallel state.

Hereinafter, the present invention will be described based on illustrated embodiments.
The fence 1 shown in FIG. 1 to FIG. 3 has two support ropes 3 installed in the horizontal direction above and below the support columns 2 and 2 that are set up at intervals, along the support rope 3, In the case of the illustrated example, two perforated panels 4, 4 having an elongated rectangular shape in the left-right direction, 4, upper sides 4 c, 4 c and lower sides 4 d, 4 d are connected and suspended in parallel with the supporting rope 3. And the vertical sides 4b and 4b of the adjacent edge parts of the said 2 perforated panels 4 and 4 are set as the arrangement | positioning A which wraps over the full length. The upper ends of the columns 2 and 2 are firmly connected by joining the beam member 6 to the mounting member 2 b of the column 2. As the support rope 3, a flexible wire, rope, or the like is used, and a catenary curve is drawn by its own weight and the weight of the perforated panel 4. For example, concrete pillars, steel pipe pillars, shaped steel pillars, truss pillars, or the like are employed for the pillars 2, and ribs 2 a for attaching the ends of the supporting ropes 3 are provided. Although not shown in the figure, the vertical sides 4b and 4b between the adjacent end portions of the two perforated panels 4 and 4 may be arranged so that only their upper portions wrap. .

  For example, the perforated panel 4 is made of a baked plated steel plate or a resin plate having a vertical dimension of 1 m × 6 m and a thickness of about 1.5 mm. The hole 4a of the perforated panel 4 is. On the entire surface of the panel 4, a long circular hole 4a (for example, a vertical length of about 50 mm and a horizontal width of about 14 mm) that is long in a direction orthogonal to the direction between the columns 2 and 2 is regularly arranged in the vertical and horizontal directions, for example, the aperture ratio Many are provided to cover 40%. However, the oblong hole 4a of the perforated panel 4 is not necessarily provided on the entire surface of the panel, and may be implemented with a configuration provided only on a part of the surface.

  The reason why the oval hole 4a long in the direction orthogonal to the direction between the columns 2 and 2 is adopted as the hole 4a of the perforated panel 4 is the specification of the prior Japanese Patent Application No. 2005-189333 (Japanese Patent Application Laid-Open No. 2007-9465). As described in detail in the book, when the perforated panel 4 receives wind pressure and receives a large tensile load between the upper and lower support ropes 3 and 3, the above-described high aperture ratio of 40% is achieved. This is because the oblong holes are advantageous for ensuring the cross-sectional area that can withstand the tensile stress by designing the lateral hole edge interval as large as possible. A relatively thin metal plate can be used as much as the horizontal hole edge interval is large, and as a result, drilling is facilitated, and a lightweight fence panel can be provided. Therefore, when the above consideration is not particularly emphasized, it is possible to adopt a configuration in which a round hole, an elliptical hole, or the like is adopted as the hole, or a hole having each shape is mixed.

  The upper side 4c and the lower side 4d of the perforated panel 4 are connected to the supporting rope 3 in a parallel state and suspended, and the upper side 4c, 4c or the lower side 4d, 4d of each perforated panel 4, the upper side 4c and the lower side A spiral wire 5 is passed through a series of states through through holes 5a provided at a small pitch along 4d so as to be sewn to the supporting rope 3 and suspended in a parallel state. Specifically, the tip of the spiral wire 5 is passed through a through hole 5a (starting end portion) provided at one end of the upper side 4c and the lower side 4d of the perforated panel 4, and the wire 5 is passed through the support rope 3. After the work to rotate and wind through the adjacent through hole 5a to the through hole 5a (terminal part) provided on the other end of the upper side 4c and the lower side 4d, The both ends of the wire 5 are fixed by means such as caulking. That is, the upper side 4c and the lower side 4d of the perforated panel 4 and the supporting rope 3 can be connected in a parallel state very easily and quickly without the need for special techniques or dedicated mounting hardware. However, the spiral wire 5 may be configured to intermittently pass through the upper and lower through-holes 5a of each perforated panel 4.

Although not shown, the upper side 4c and the lower side 4d of the perforated panel 4 are connected to the supporting rope 3 in a parallel state and suspended, and instead of the spiral wire 5, for example, a ring-shaped connecting member , A carabiner, or a plurality of hooks with detachment prevention are used, and the connecting member is passed through the through holes 5a while the supporting ropes 3 are wound, so that the upper side 4c or the lower side 4d of the perforated panel 4 and the supporting rope 3 Can also be implemented in a configuration in which they are connected in parallel.
Further, the through hole 5a is not necessarily provided, and the spiral wire 5 is passed through the hole 4a, which the perforated panel 4 originally has along the upper and lower edges, through a series of states so that the support rope 3 is sewn. It can also be connected in parallel.

  Further, the fence 1 of the present embodiment has four corners of the perforated panel 4 which are particularly susceptible to stress concentration and damage due to repeated loads such as wind loads and impacts as shown in FIGS. The portion is reinforced to withstand the lifting load, and the rigid members 9 and 10 attached to the reinforced portion are fastened to the support rope 3 to connect both ends of the upper and lower sides of the perforated panel 4 and the support rope. 3 are connected by a suspension structure that maintains a parallel state.

  FIG. 2 shows a suspension structure that keeps the upper and lower edge portions of the perforated panel 4 on the column 2 side and the supporting rope 3 in a parallel state. Both ends of the support rope 3 are processed into a ring shape, the thimble 3a and the rib 2a of the support column 2 are connected to each other by a connecting member 8 such as a reinforcing shackle, and the support rope 3 is installed on the support column 2. Yes. The upper and lower edges of the perforated panel 4 are formed in a chamfered shape cut at an angle that does not cause interference with the thimble 3a of the support rope 3, and the chamfered portion B is formed by removing the reinforcing material 7 from the reinforcing panel 7. It is reinforced by sticking with a bet joint or the like. The through hole 5a provided in common to the perforated panel 4 and the reinforcing member 7 is connected and fixed through the terminal portion of the spiral wire 5. A connecting hole is provided adjacent to the outside of the fixing position, and a rigid member 9 such as a reinforced shackle is attached to the connecting hole with a stop pin 9a, and the other side of the rigid member 9 is the support rope. 3 thimbles 3a.

FIG. 3 shows a suspension structure that keeps the portion A and the supporting rope 3 where the end portions on the center side where the two perforated panels 4 and 4 are adjacent to each other wrap in a parallel state. The wrap portion A or the vicinity of the wrap portion A of the perforated panel 4 is reinforced by attaching the reinforcing material 11 by rivet bonding or the like, and spirals to the through hole 5a provided in common to the perforated panel 4 and the reinforcing material 11 Connection and fastening are performed through the end of the wire 5. A connecting hole is provided adjacent to the inside of the fixing position, and a rigid member 10 such as a reinforced shackle is attached to the connecting hole with a stop pin 10a, and the other side of the rigid member 10 is connected to the supporting rope 3. Tightening is done.
Although not shown in the figure, a sheet having a lubricity such as a Teflon (registered trademark) sheet for preventing rubbing between the perforated panels 2 and 2 is applied to a portion A where the perforated panels 4 and 4 wrap. It is preferable to stick using a sticking member such as a spiral wire.

Therefore, since the fence 1 of the present embodiment has the above-described configuration, stress concentration at the end portion of the perforated panel 4 can be prevented even when a wind load or a load due to an impact object is repeatedly received. It is possible to increase the strength and durability of the end portion of the steel, and to exhibit a high yield strength over a long period of time and to be used soundly.
Further, as shown in FIG. 4, the two perforated panels 4 and 4 are configured so as to be vertically displaceable together with the supporting rope 3, and avoid the acting force when subjected to a load such as wind load or impact force. Thus, the load can be reduced by changing freely so as to be missed, which can greatly contribute to the improvement of durability and the maintenance of soundness.

In addition, as shown in FIG. 5, the fence 1 according to the present embodiment has support ropes 3 and 3 erected between a plurality of support pillars 2... Two perforated panels 4 having a quadrangular shape are suspended along the rope 3 with their upper side 4c and lower side 4d connected in parallel, and adjacent end portions of the two perforated panels 4 are connected to each other. It is also possible to implement with a configuration in which the vertical side 4b of FIG.
Further, the number of perforated panels 4 is not limited to the two illustrated. Although illustration is omitted, three or more perforated panels 4 having upper and lower sides 4c and 4d are suspended in parallel with the supporting rope 3 and suspended along the supporting rope 3. It can also be implemented in a configuration in which the vertical sides 4b of the adjacent end portions of the perforated panel 4 are overlapped.

  The fences 1 ′ and 1 ″ shown in FIG. 6 and FIG. 7 are suspended by connecting the upper sides 4c and 4c and the lower sides 4d and 4d in parallel with the supporting rope 3, and the vertical sides between adjacent ends. 4b, 4b wrap two perforated panels 4, 4 (see FIG. 6) or four perforated panels 4 (see FIG. 7) between the struts 2, 2. This is a configuration in which two stages are installed in the vertical direction. Three supporting ropes 3 are installed in the vertical direction between the support columns 2 and 2 (FIG. 7 shows the case of two), and are arranged between the upper and lower perforated panels 4 and 4. The support rope 3 is used in common for the upper perforated panel 4 and the lower perforated panel. Since the other configuration is common to the fence 1 of the first embodiment described above, detailed description is omitted. In the fence 1 '' shown in FIG. 7, the spiral wire 7 that connects the lower perforated panel 4 and the supporting rope 3 is connected to the hole 5a provided along the upper side of the lower perforated panel 4. The reinforcing members 7 and 11 provided at the four corners B of the upper and lower perforated panels 4 are intermittently passed through the reinforcing members 7 of the fences 1 and 1 'shown in FIGS. 11 shows a configuration having a smaller shape than that of FIG.

  In addition, the number of stages of the perforated panel 4 is not limited to the illustrated two stages. For example, if the size of the perforated panel 4 is small, the perforated panel 4 is installed in three or more stages in the vertical direction of the support 2 in accordance with the height of the supports 2 and 2, and the fences 1 ′, 1 ″. Configure.

  Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the embodiment. The present invention can be implemented in various modes without departing from the object and spirit of the present invention within the scope of design changes, modifications, and applications made by those skilled in the art.

It is the front view which showed Example 1 of the fence which concerns on this invention. It is the enlarged view which showed the II section of FIG. It is the enlarged view which showed the III section of FIG. It is explanatory drawing which showed the effect of the fence which concerns on this invention. It is the front view which showed the application example of the fence which concerns on this invention. It is the front view which showed Example 2 of the fence which concerns on this invention. It is the front view which showed Example 2 of the fence which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 ', 1''Fence 2 Support | pillar 3 Support rope 3a Ring-shaped edge part 4 Perforated panel 4a Hole 5 Spiral wire 5a Through hole 6 Beam material 7, 11 Reinforcement material 8 Connecting member 9, 10 Rigid member A Wrap Part B Chamfered shape part

Claims (7)

A support rope is installed in a horizontal direction between struts standing at intervals, and the upper sides of a plurality of square perforated panels are parallel to the support rope along the support rope. It is connected and suspended, and the vertical sides of adjacent end portions of the plurality of perforated panels are arranged to wrap,
Further, the fence is characterized in that the upper edge both ends of the perforated panel and the supporting rope are connected by a suspension structure that maintains a parallel state. The lower side of the perforated panel hung by connecting the upper side in parallel with the support rope is also connected and suspended in parallel with the support rope laid horizontally between the columns,
The fence according to claim 1, wherein both ends of the lower side of the perforated panel and the supporting rope are connected by a suspension structure that maintains a parallel state. The upper side of each perforated panel, or the upper side and the lower side are suspended in parallel by being connected to the holes provided along the upper side or the upper side and the lower side through a spiral wire and sewed with a support rope. ,
Further, the four corners of the perforated panel are reinforced to withstand a load, and the rigid members attached to the reinforcing portions are fastened to the support ropes to connect both ends of the perforated panel or both ends of the upper side. The fence according to claim 1 or 2, wherein both ends of the lower side and the support rope are connected in parallel. Both ends of the support rope are processed into a ring shape, the ring-shaped end portion and the support column are connected to each other in a free state by a connecting member, and the support rope is installed on the support column,
The upper edge of the perforated panel or the upper edge and the lower edge of the perforated panel are cut into a chamfered shape that does not interfere with the ring-shaped ends of the supporting rope. It is connected and fixed through the end of the spiral wire to the through hole provided in common to the perforated panel and the reinforcing material, and is connected adjacent to the fixed position. A hole is provided, and one side of the rigid member is attached to the connecting hole, and the other side of the rigid member is passed through the ring-shaped end portion of the support rope to be fastened, and the upper side end or upper side end of the perforated panel The fence according to claim 3, wherein the portion and the lower end portion are suspended and supported in parallel to the support rope.   The wrap portion of the plurality of perforated panels or the vicinity of the wrap portion is reinforced by attaching a reinforcing material, and is connected to the through-hole provided in the perforated panel and the reinforcing material through the terminal end of the spiral wire. A fastening hole is provided adjacent to the fastening position, and one side of the rigid member is attached to the coupling hole, and the other side of the rigid member is wound around the supporting rope. Tightening is performed, and the upper edge part of the part where the edge parts of the perforated panel overlap each other, or the upper edge part and the lower edge part are suspended and supported in a parallel state to the support rope. Item 3. The fence according to item 3.   The perforated panel suspended by connecting the upper side, or the upper side and the lower side in parallel with the supporting rope, is installed in a plurality of stages in the vertical direction between the support columns. The fence described in Kaichi.   The holes of the perforated panel are provided on the entire surface of the panel as regular oblong holes in the vertical and horizontal directions as long circular holes extending in a direction orthogonal to the direction between the columns. The fence described in any one of -6.

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