JP2005076188A - Guard fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guard fence which can arbitrarily adjust the angle of beams according to the inclination of the ground on which the fence is set, is easy to manufacture and assemble, hardly undergoes disengagement between the beams and balusters, and is good in storage and transportation efficiency. <P>SOLUTION: The guard fence is formed of a plurality of supports arranged at predetermined intervals, and fence bodies arranged between the supports. Each fence body is formed of a pair of the parallel beams, and the plurality of balusters connecting the beams together. Each beam is formed by connecting parts of a pair of beam pieces together by means of a beam piece connecting means, and parts of the beam pieces opposed to the one parts, are made openable. The beam pieces have connecting means for connecting the balusters thereto, which are each formed of a pair of insertion pins provided for the respective beam pieces. The insertion pins are arranged in plurality on an inner wall surface of each beam piece at predetermined intervals, and when the beam is closed, the insertion pins opposed to each other match with each other. Further the beam has openings in a side surface opposed to the vicinity of the beam connecting means, and the openings have a lengthwise diameter larger than the diameter of the baluster. Furthermore, the baluster has holes in the vicinity of both ends thereof, for inserting therein the insertion pins, and therefore the baluster is longitudinally displaceable with respect to the connection means as an axis. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a protective fence installed for the purpose of preventing the fall of a boundary between a roadway and a sidewalk and a river / waterway, and in particular, the angle of the fence body can be arbitrarily adjusted according to the gradient of the installation location. It relates to a protective fence that can be used.

  As is well known, guard fences are installed for the purpose of preventing falls between roadways and sidewalks and rivers and waterways. Various types of guard fences have been developed, but a pair of beams are arranged in parallel, a plurality of vertical beams are arranged vertically between the beams, and each is welded. Guard fences fixed in general are common.

  When installing a protective fence, it is common to provide a support on the ground and connect and fix the fence body and the support. At this time, the ground and the beam are installed in parallel. In the case of a ground having a slope, the ground and the beam are installed in parallel, but the vertical section is provided so as to be orthogonal to the horizontal ground. Therefore, conventionally, since the slope of the ground was measured and protective fences corresponding to the slope were individually manufactured, there was a problem that it took time to deliver compared with the standard product of the flat part.

  In order to solve this problem, protective fences that can adjust the crossing angle between the beam and the vertical beam have been developed. Japanese Utility Model Laid-Open No. 7-29008 is a device for a protective fence in which a hole is formed on the side surface of the beam, a connecting member made of an elastic material is provided at the end of the vertical, and the connecting member is inserted into the hole and engaged.

Japanese Patent Application Laid-Open No. 8-144231 is an invention about a protective fence in which a deep hole is formed in a beam, a spherical connecting portion is provided at the end of the vertical, and the spherical connecting portion is inserted and connected to the hole.
Utility Kaihei 7-29008 JP-A-8-144231

  By the way, in any of the above-described protective fences, a connecting portion is fitted into the hole of the beam and fixed to the beam vertically. However, there is also a problem that it will come off when a strong force is applied to the vertical and it will not function as a protective fence.

  In particular, the guard fence described in Japanese Utility Model Publication No. 7-29008 uses an elastic connecting member, so that the connecting member can be easily removed, or the connecting member can be damaged and the vertical member can be removed. Have a problem.

  In addition, when installed on the ground with a slope, the elasticity of the connecting member is used to make the beam and the vertical angle at an angle corresponding to the slope, so there is a problem that the connecting member continues to be loaded and easily damaged. It was.

  In addition, Mr. Long uses various metals, but the connecting member uses other materials, so that there is a problem that the manufacturing cost is increased. Furthermore, since the operation | work which fits a connection member to Mr. length is also required, there also existed a problem that manufacture was not easy.

  In addition, the guard fence described in Japanese Patent Application Laid-Open No. 8-144231 has a problem that it is necessary to form a deep hole that matches the spherical connecting portion on the side surface of the beam, which makes it difficult to manufacture. In addition, if the entrance of the wide hole is too small, the spherical connection portion is difficult to be removed from the hole, but it is difficult to insert the spherical connection portion into the hole, so that the entrance of the hole may be deformed. On the contrary, if the entrance of the wide hole is too large, it becomes easy to insert the spherical connection part into the hole, but there is a risk that it will come off easily, and it is difficult to adjust the size of the spherical connection part and the size of the hole Had the problem.

  From the above, the angle of the beam can be adjusted freely according to the gradient of the ground to be installed, manufacturing and assembly are easy, the connection between the beam and the vertical is difficult to disconnect, and the storage and transport efficiency is good Development of a protective fence was desired.

  In order to solve the above problems, a protective fence according to the present invention includes a plurality of support columns provided at a predetermined interval and a fence body provided between the support columns, and the fence body includes a pair of parallel beams. And a plurality of vertical beams connecting the beams. The beam has a split structure, a part of a pair of beam pieces is connected by beam piece connecting means, and the opposite surface side can be opened and closed. The connecting means is provided with a pair of insertion pins provided on each of the pair of beam pieces, and a plurality of insertion pins are provided on the inner wall surface of the beam piece with a predetermined interval. When the beam is closed, it is arranged so that the opposing insertion pins match, and an opening is formed on the opposite side surface in the vicinity of the beam connecting means, and the hole diameter in the longitudinal direction of the opening is Larger than the diameter, near both edges It provided a hole for inserting the insert pin, vertical Ms. as an axis connecting means, characterized in that in the longitudinal direction is displaceable (movement).

  The beam piece connecting means may have a hinge structure.

  Further, Mr. Long is characterized in that it can be displaced (moved) on the surface including the pair of beams.

  Moreover, the beam piece fixing | fixed part which fixes a beam piece may be provided in the edge part of one or both of the beam.

  Moreover, you may attach the sealing member which plugs up an opening part.

  Since the guard fence according to the present invention inserts a pair of insertion pins provided in the beam into the holes provided in the vertical and connects the beam and the vertical, the connection work is easy and the connection is easy. Hard to come off and very convenient.

  In addition, since the vertical axis can be displaced (moved) around the insertion pin, even if the ground to be installed has an inclination, the beam angle can be adjusted to be parallel to the ground. Also have.

  Further, since the beam and the vertical member are connected by connecting means, and the beam is connected to a pair of beam pieces and fixed with bolts and nuts, the protective fence can be easily assembled and disassembled.

  The protective fence 2 according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a guard fence 2 according to the present invention, and FIG. 2 is a partially enlarged view showing a fence body 4. In addition, these figures are for demonstrating this invention, and do not limit this invention at all.

  The protective fence 2 according to the present invention includes a plurality of support posts 24 provided at predetermined intervals, and a fence body 4 provided between the support posts 24, and the fence body 4 includes a pair of parallel beams 6. And a plurality of vertical members 20 connecting the beams 6.

  3 and 4 are explanatory views showing a beam 6 according to the present invention, and FIGS. 5 and 6 are explanatory views showing a beam piece 8 according to the present invention. The beam 6 according to the present invention is formed by combining a pair of beam pieces 8, a part of the beam pieces 8 are connected by the beam piece connecting means 10, and the opposing surface side can be opened and closed. The shape of the beam 6 is preferably a perfect circular cylinder, but may be an elliptical cylinder or a prism, and may be set as appropriate. The beam piece 8 is preferably a semi-cylindrical body in which the beam 6 is halved symmetrically. The beam piece connecting means 10 preferably has a hinge structure. However, in addition to the hinge structure, any means and structure may be used as long as a part of the beam pieces 8 are connected and the opposite surface side of the beam 6 can be opened and closed. There may be.

  In FIG. 2, the upper beam 6a and the lower beam 6b are described separately, but this is only distinguished for convenience of explanation, and the upper beam 6a and the lower beam 6b are not necessarily manufactured separately. There is no need. For example, if one of the beams 6 is manufactured and inverted, it can be used as the opposite beam 6.

  Further, a drain hole may be provided in a part of the beam 6. By providing the water drain hole, the water accumulated in the beam for some reason can be discharged to prevent the beam 6 from being corroded and to maintain the product life. In particular, it is possible to prevent rainwater from accumulating in the lower beam 6b by forming a water drain hole in the beam 6 which becomes the lower beam 6b. What is necessary is just to set the magnitude | size of this hole, the number of installation, an installation location, etc. suitably.

  As the material of the beam 6, various metals such as iron, stainless steel, and aluminum are preferably used, but may be set as appropriate. When a material that is easily corroded is used, it is preferable to subject the outer surface to a corrosion prevention treatment. Further, the inner wall surface of the beam 6 may be subjected to corrosion prevention treatment.

  Further, a beam piece fixing portion 16 that fixes and holds the connected state of the beam pieces 8 may be provided at the edge of the beam 6. As the beam piece fixing portion 16, a method in which a fixing piece is provided at the edge of the beam piece 8, the fixing pieces are overlapped with each other, and fastened with a bolt and nut is fixed. In addition, the fixing pieces may be welded to each other, and any method and means can be used as long as the connection state of the beam pieces 8 can be fixed and held. The beam piece fixing portions 16 are preferably provided at both edge portions of the beam 6, but only one of them may be provided. Further, caps may be provided on both edges of the beam 6.

  FIG. 8 is an explanatory view showing a connection state between the beam 6 and the vertical member 20. The beam piece 8 according to the present invention is provided with a connecting means 12 for connecting the beam 6 and the vertical member 20, and the connecting means 12 includes a pair of insertion pins 14 provided on the pair of beam pieces 8, respectively. A plurality of insertion pins 14 are provided on the inner wall surface of the beam piece 8 with a predetermined interval. When the beam 6 is closed, the insertion pins 14 are arranged so as to match each other. Here, “matching” includes not only the case where the tip of the insertion pin 14 abuts but also the case where there is a certain gap at the tip of the insertion pin 14.

  The insertion pin 14 is preferably a perfect circular cylinder. What is necessary is just to set a diameter, length, etc. suitably. The conditions such as the number of insertion pins 14 and the installation interval may be set as appropriate in consideration of the number of vertical members 20 installed. As shown in FIG. 4, the insertion pin 14 is preferably provided at the center of the inner surface of the beam piece 8 and perpendicular to the inner surface of the beam piece 8.

  An opening 18 is formed on the opposite side surface in the vicinity of the connecting means 12. The opening 18 is a hole 22 into which the vertical member 20 is fitted when the beam 6 and the vertical member 20 are connected. The hole 22 is formed so that the longitudinal diameter of the vertical member 20 is larger than the diameter of the vertical member 20 and is substantially elliptical. Since the length of the hole diameter in the longitudinal direction is the movable range of the vertical member 20, the size of the hole 22 may be set in consideration of various conditions. If the diameter of the vertical member 20 and the size of the opening 18 are appropriately adjusted, the vertical member 20 does not wobble, and the vertical member 20 can be displaced (moved) on the surface including the pair of beams.

  Further, after connecting the beam 6 and the vertical member 20, a sealing member for closing the opening 18 may be attached. The seal member may be wrapped around the vertical member 20 or may be provided with an adhesive on one side of the sheet, but rain water or the like can be prevented from entering the beam 6 from the opening 18. If possible, the material, shape, etc. are not particularly limited. In addition to the sealing member, the opening 18 may be filled with resin or the like. As a result, the opening 18 can be closed and the beam 6 and the vertical member 20 can be firmly fixed.

  FIG. 7 is an explanatory view showing Mr. Longitudinal 20 according to the present invention. This vertical member 20 can use what is generally widely used, and the material, the shape, etc. may be appropriately set and used. Holes 22 for inserting the insertion pins 14 are provided in the vicinity of both edges of the vertical section 20.

  Since the beam 6 and the vertical member 20 are connected by inserting the insertion pin 14 into the hole 22, the vertical member 20 can be displaced (moved) about the insertion pin 14 as an axis. When the vertical member 20 is fixed, the beam 6 can be displaced (moved) about the insertion pin 14 as an axis. FIG. 9 is an explanatory view showing the fence body 4 in a state where the beam 6 and the vertical section 20 are orthogonal to each other, and the fence body 4 in a state where the angle of the beam 6 is adjusted, and FIG. 10 is an enlarged partial exploded view thereof. is there. As shown in FIG. 9, when the vertical members 20 at both ends of the fence body 4 where the beam 6 and the vertical members 20 are orthogonal to each other are moved in opposite directions, the beam 6 is inclined. Therefore, the angle at which the beam 6 and the vertical member 20 intersect can be arbitrarily adjusted, and the beam 6 can always be parallel to the inclination even with respect to the inclined ground.

  As shown in FIG. 9, when the angle of the beam 6 of the fence body 4 is adjusted, the lateral width of the fence body 4 becomes slightly shorter than when the beam 6 and the vertical member 20 are orthogonal to each other. However, there is no particular problem because the amount of shortening is small. When the fence body 4 is installed between the columns 24, the gusset 26 is provided. Therefore, even if the lateral width of the fence body 4 becomes extremely short, the length of the gusset 26 may be adjusted. There is no problem with regards to features.

  Since the fence body 4 has the beam 6 and the vertical member 20 connected by the connecting means 12, the assembly and disassembly of the fence body 4 are easy. For example, even if only one of the beams 6 is damaged or only one of the vertical members 20 is damaged, the fence body 4 can be easily disassembled and replaced with the alternative beam 6 or the vertical member 20.

  The above is the description of the protective fence 2 according to the present invention, but various conditions, settings, and the like can be changed without departing from the object of the present invention.

  Next, the assembly and installation method of the guard fence 2 according to the present invention will be described. First, the beam 6 is assembled to assemble the fence body 4. A beam piece 8 having a plurality of insertion pins 14 fixed thereto is opposed to the inner wall surface, and the inner wall surface on the side where the opening 18 is not provided is connected by the beam piece connecting means 10. What is necessary is just to install the beam piece connection means 10 in a suitable space | interval with two or more.

  Next, the opening 18 side of the beam 6 is opened, the vertical member 20 is inserted, all the insertion pins 14 are inserted into the holes 22 of the vertical member 20, and the opening 18 side of the beam 6 is closed. After connecting the upper and lower beams 6 and the vertical beam, the beam piece fixing portion 16 provided at the end of the beam 6 is fixed with a bolt and a nut. Thereafter, a cap may be provided at the end of the beam 6. Further, a seal member may be provided in the gap between the vertical section 20 formed in the opening 18, or the opening 18 may be filled with a resin or the like and closed.

  Next, pillars 24 are installed at a predetermined interval at a place where the protective fence 2 is installed, and the fence body 4 is attached between the pillars 24. At this time, the vertical member 20 closest to the support column 24 is connected by the gusset 26 and fixed.

  When the ground has an inclination, as shown in FIG. 9, the vertical axis 20 is moved up and down to adjust the beam 6 to be parallel to the inclination of the ground. The column 24 and the fence body 4 are connected and fixed in a state where the beam 6 and the ground are parallel to each other.

  Since the guard fence according to the present invention connects the beam and the vertical member with the connecting means, the assembly and disassembly of the fence body is easy, and the storage efficiency and the transport efficiency are excellent. Therefore, the protective fence according to the present invention is optimal in case of emergency such as temporarily installing a protective fence due to disasters such as landslides, flooding of rivers, missing roads, etc., and removing the protective fence after restoration work. .

It is explanatory drawing which showed the protective fence which concerns on this invention. It is the elements on larger scale which showed the fence main body which concerns on this invention. It is explanatory drawing which showed the beam which concerns on this invention. It is the side view which showed the beam which concerns on this invention. It is explanatory drawing which showed the beam piece which concerns on this invention. It is the side view which showed the beam piece concerning this invention. It is explanatory drawing which showed Mr. length according to the present invention. It is explanatory drawing which showed the connection state of the beam which concerns on this invention, and vertical. It is explanatory drawing which showed one usage example of the fence main body which concerns on this invention. It is the partial exploded enlarged view which showed one example of use of the fence main body which concerns on this invention.

Explanation of symbols

2 Guard fence 4 Fence body 6 Beam 6a Upper beam 6b Lower beam 8 Beam piece 10 Beam piece connection means 12 Connection means 14 Insertion pin 16 Beam piece fixing part 18 Opening part 20 Vertical 22 Hole 24 Strut 26 Gusset

Claims (5)

  It consists of a plurality of columns provided with a predetermined interval and a fence body provided between the columns. The fence body includes a pair of parallel beams and a plurality of vertical members connecting the beams. The beam comprises a part of a pair of beam pieces connected by a beam piece connecting means, the opposite surface side can be opened and closed, and the beam piece is provided with a connecting means for connecting the vertical members, The connecting means comprises a pair of insertion pins provided on each of the pair of beam pieces, and the insertion pins are provided on the inner wall surface of the beam piece with a predetermined interval, and when the beam is closed, The opposing insertion pins are arranged so as to coincide with each other, and an opening is formed on the opposite side surface in the vicinity of the beam connecting means, and the longitudinal hole diameter of the opening is larger than the diameter of the vertical section. The insertion pin is inserted in the vicinity of both edges of the vertical section Hole of the eye is provided, it said longitudinal Ms. safety barrier, characterized in that said connecting means as an axis, is displaceable in the longitudinal direction.   The guard fence according to claim 1, wherein the beam piece connecting means has a hinge structure.   The protective fence according to claim 1 or 2, wherein the vertical section is displaceable on a surface including the pair of beams.   The guard fence according to any one of claims 1 to 3, wherein a beam piece fixing portion for fixing the beam piece is provided at one or both edges of the beam.   The protective fence according to claim 1, further comprising a seal member that closes the opening.

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