JP6436690B2 - Protective fence bracket and protective fence - Google Patents

Description

  The present invention relates to a bracket for a protective fence that attaches the ends of steel pipes to a column while connecting the ends of the steel pipe, and a protective fence using the same.

  Conventionally, protective fences have been used for the purpose of separating roadways and sidewalks.

  For example, Patent Document 1 discloses a protective fence formed by attaching a steel pipe to a support using a bracket.

  The bracket used in this conventional guard fence has a configuration in which two steel pipes can be connected only in a straight line in a plane direction to one column, and the angle of the two steel pipes is changed in the plane direction. When connecting, it was necessary to deform the bracket.

  However, when the steel pipe is connected using the deformed bracket, there is a safety problem because a gap is generated between the bracket and the steel pipe or a sharp protrusion is formed on the bracket.

  Therefore, it has been attempted to ensure safety by covering these gaps and protrusions with tape, but there is a problem that the aesthetic appearance of the protective fence is impaired.

  On the other hand, as an example of a protective fence whose angle can be changed in the planar direction, there is one that uses a configuration like a hinge without using a bracket, as disclosed in Patent Document 2.

  However, this guard fence is a panel-like member that is rotatably attached to a support column, and cannot be adapted to a mode in which a plurality of steel pipes are connected.

No. 1-15702 Japanese Patent Laid-Open No. 11-81262

  None of the above-described conventional protective fences were attached to a steel pipe so that the angle can be adjusted in the plane direction while preventing formation of gaps and protrusions and ensuring safety and aesthetics.

  Therefore, the present invention has been devised in view of the above-mentioned problems, and is used for a protective fence using a steel pipe, and the protection in which the angle in the plane direction of the steel pipe can be adjusted while ensuring safety and aesthetics. An object is to provide a bracket for a fence and a protective fence using the same.

A bracket for a protective fence according to a first invention is a bracket for a protective fence in which the ends of two steel pipes are connected to each other and fixed to the post in a protective fence formed by fixing a steel pipe to the post,
A small notch portion formed at both ends of the first side surface and notched so that the first side surface does not contact the steel pipe when the steel pipe is attached along the first side surface, and opposed to the first side surface The second side surface is formed at both end portions and is a notch larger than the small notch portion, and the second side surface is attached to the steel pipe when the steel pipe is attached with an inclination of 45 degrees toward the second side surface side. An important notch cut out to a size that allows the steel pipe to be inserted without contact, and the bracket for the protective fence provided at a position facing each other on the first side surface and the second side surface. The first bolt fastening hole used when fastening, the third side face and the fourth side face formed so as to sandwich the first side face and the second side face, and the vicinity of the end of the bracket for the protective fence Third side and front Provided at both ends of the fourth side, and a second bolt fastening holes used for fixing of the steel pipe, the second bolt fastening hole, for at least part of the first side of the long hole shape It is inclined and can change the fixed position of the said steel pipe so that an edge part may not be exposed .

According to a second aspect of the present invention, there is provided the protective fence bracket according to the first aspect, wherein a first recess is formed on the first side surface along a direction perpendicular to the axial direction of the protective fence bracket. One bolt fastening hole is provided.

According to a third aspect of the present invention, there is provided the protective fence bracket according to the first or second aspect, wherein a second recess is formed on the second side surface along a direction perpendicular to the axial direction of the protective fence bracket. The first bolt fastening hole is provided at the top.

A guard fence according to a fourth aspect of the present invention is a guard fence formed by fixing a steel pipe to a support using a guard fence bracket, wherein the guard fence bracket is any one of claims 1 to 3. The steel pipe has a hole that penetrates the steel pipe in the vicinity of the end portion, and the two steel pipes form an angle in a plan view, and the second of the protective fence bracket. The second bolt fastening hole and the hole of the steel pipe are overlapped with each other in a state where the second bolt fastening hole is not in contact with the side surface of the steel pipe, and the end of the steel pipe on which the bolt is fastened is the first end of the bracket for the protective fence. The column is covered with one side and cannot be visually recognized from the outside, and the support column is formed with a hole for fastening the bracket for the protective fence on the side, and the third side and the fourth side of the bracket for the protective fence Either Characterized in that it is bolted in a state of superposing the hole portion of the strut and the first bolt fastening hole.

According to a fifth aspect of the present invention, there is provided the protective fence according to the fourth aspect , wherein the protective fence is fixed so that the steel pipe forms an angle of 0 to 45 degrees with respect to the first side surface of the bracket for the protective fence. Features.

  According to the present invention having the above-described configuration, a bracket for a protective fence that is used in a protective fence using a steel pipe and can adjust the angle in the plane direction of the steel pipe while ensuring safety and aesthetics, and a protective fence using the same. Can be provided.

It is a perspective view which shows the protection fence which concerns on embodiment of this invention. It is a perspective view which shows the support | pillar used for the protection fence which concerns on embodiment of this invention. It is a perspective view which shows the steel pipe used for the protection fence which concerns on embodiment of this invention. It is a perspective view which shows the bracket for protection fences used for the protection fence which concerns on embodiment of this invention. It is a top view which shows the bracket for protection fences used for the protection fence which concerns on embodiment of this invention. It is a front view which shows the bracket for protection fences used for the protection fence which concerns on embodiment of this invention. It is a side view which shows the bracket for protection fences used for the protection fence which concerns on embodiment of this invention. It is a rear view which shows the bracket for protection fences used for the protection fence which concerns on embodiment of this invention. It is a top view which shows an example of the state by which the steel pipe was fixed to the support | pillar with the bracket for protection fences in the protection fence which concerns on embodiment of this invention. It is a top view which shows the other example of the state in which the steel pipe was fixed to the support | pillar with the bracket for protection fences in the protection fence which concerns on embodiment of this invention. It is a perspective view which shows the modification of the bracket for protective fences. It is a top view which shows the bracket for protection fences used for the protection fence which concerns on a modification. It is a front view which shows the bracket for protection fences used for the protection fence which concerns on a modification. It is a side view which shows the bracket for protection fences used for the protection fence which concerns on a modification. It is a rear view which shows the bracket for protection fences used for the protection fence which concerns on a modification. It is a top view which shows an example of the state by which the steel pipe was fixed to the support | pillar using the bracket for protective fences which concerns on a modification. It is a top view which shows the other example of the state by which the steel pipe was fixed to the support | pillar using the bracket for protective fences which concerns on a modification.

  Hereinafter, the protection fence according to the embodiment of the present invention will be described in detail.

  FIG. 1 is a perspective view showing a protective fence according to an embodiment of the present invention. A protective fence 1 according to the present embodiment includes a support column 2 standing at a predetermined interval, a steel pipe 3 spanned between the support columns 2, and a protective fence bracket 4 for fixing the steel tube 3 to the support column. Configured.

  FIG. 2 is a perspective view showing a support column used in the guard fence according to the embodiment of the present invention. The column 2 is provided with a hole 22 on the side surface of the columnar column main body 21 for bolting the protective fence bracket 4 with a predetermined interval in the vertical direction.

  FIG. 3 is a perspective view showing a steel pipe used in the guard fence according to the embodiment of the present invention. The steel pipe 3 is provided with a hole 32 for fastening the bolt to the support bracket 4 in the vicinity of the end of the pipe body 31 that is a cylindrical metal member.

  FIG. 4 is a perspective view showing a bracket for a protective fence used in the protective fence according to the embodiment of the present invention. FIG. 5 is a plan view showing a guard fence bracket used in the guard fence according to the embodiment of the present invention. FIG. 6 is a front view showing a guard fence bracket used in the guard fence according to the embodiment of the present invention. FIG. 7 is a side view showing a guard fence bracket used in the guard fence according to the embodiment of the present invention. FIG. 8 is a rear view showing a guard fence bracket used in the guard fence according to the embodiment of the present invention.

  The protective fence bracket 4 is a cylindrical bracket having both ends formed by using a metal plate as open ends. The bracket 4 for the guard fence is a guard fence 1 formed by fixing the steel pipe 3 to the support column 2. The ends of the steel pipe 3 are connected to each other so that the two steel pipes 3 form an angle in a horizontal plane and fixed to the support column 2. It is a bracket to do.

  The bracket 4 for the protective fence is smaller than the small notches 41a formed at both ends of the first side face 41 and the small notches 41a formed at both ends of the second side face 42 opposite to the first side face 41. The first bolt fastening used when bolting the bracket 4 for the protective fence provided at the position facing the important cutout portion 42a which is a large notch and the first side face 41 and the second side face 42 respectively. The holes 41b and 42b, the third side surface 43 and the fourth side surface 44 formed so as to sandwich the first side surface 41 and the second side surface 42, and the third side surface 43 and the vicinity of the release end of the protective fence bracket 4 Second bolt fastening holes 43a, 44a, which are provided at both ends of the fourth side surface 44 and used to fix the steel pipe 3, are provided.

  The important notch portion 42a has a diameter through which the steel pipe 3 can pass, and has a role to prevent the end of the steel pipe 3 from being exposed from the bracket 4 for the protective fence even when the angle of the steel pipe 3 is changed.

  The small notch 41a has a role of ensuring safety by reducing the protrusions of the protective fence bracket 4 itself in a state where the protective fence 1 is assembled.

  FIG. 9 is a top view illustrating an example of a state in which the steel pipe is fixed to the support column by the bracket for the protective fence in the protective fence according to the embodiment of the present invention.

  As shown in FIG. 9, the guard fence bracket 4 is fixed to the support pillar 2 in the state in which the first side face 41 of the guard fence bracket 4 is in contact with the support 21 main body from the second side face 42 side. The bolt 5 is inserted so as to penetrate the main body 21, and the nut 51 is screwed to the end of the penetrated bolt 5.

  Further, the steel pipe 3 is fixed to the protective fence bracket 4 by bolts and nuts (not shown). That is, the steel pipe 3 is fixed in a state where the tip portion is inserted into the guard fence bracket 4 from the important notch 42a of the guard fence bracket 4 and the hole 32 and the second bolt fastening hole 43a are overlapped. A bolt is inserted and penetrated through the hole 32 and the second bolt fastening hole 43a, and a nut is screwed into a tip portion of the bolt.

  The angle formed by the two steel pipes 3 fixed to the protective fence bracket 4 is 0 ° to 45 ° in the plane direction with respect to the first side surface 41 according to the size of the important notch portion 42a as described later. Can be adjusted in degrees. In the state shown in FIG. 9, the angle formed by the two steel pipes 3 is 45 degrees.

  In the state in which the steel pipe 3 is fixed to the bracket 4 for the protective fence, the gap between the important notch 42a and the steel pipe 3 is not generated, so that an operator or a passerby can do that without covering with tape or the like. A finger or the like cannot be inserted into the gap.

  Further, since the important notch portion 42a is provided in the protective fence bracket 4, the steel pipe 3 is within an angle corresponding to the size of the important notch portion 42a (in this embodiment, the plane is flat with respect to the first side surface 41). It is possible to rotate around the inserted bolt without contacting the second side surface 42 at 0 to 45 degrees in the direction.

  Furthermore, when the steel pipe 3 is rotated within the above-mentioned angle, the tip end portion on the side where the steel pipe 3 is fixed is covered with the first side face 41 that is wider in the left-right direction in FIG. 9 than the second side face 42. Thus, the angular end is not exposed to the outside.

  Thus, the width of the 1st side 41 and the 2nd side 42 differs, and the end of steel pipe 3 is not exposed to the exterior of bracket 4 for protection fence, but attachment of steel pipe 3 to bracket 4 for protection fence The angle can be adjusted.

  In addition, in this invention, the attachment angle of this steel pipe 3 is not restricted to 0 degree-45 degree | times, It can set to the range other than the range mentioned above by changing the magnitude | size of the important lack part 42a. For example, by making the size of the important notch portion 42a smaller than that in the above-described embodiment, the upper limit of the attachment angle becomes smaller than 45 degrees, and by making the size of the important notch portion 42a larger than that in the above-described embodiment. The upper limit of the attachment angle can be made larger than 45 degrees.

  FIG. 10 is a top view illustrating another example of a state in which a steel pipe is fixed to a support column by a bracket for the protective fence in the protective fence according to the embodiment of the present invention.

  The state shown in FIG. 10 is the above-mentioned in that the bolt 5 is screwed from the first side surface 41 side with the second side surface 42 in contact with the column 2 and the guard fence bracket 4 is fixed to the column 2. 9 is the same as the embodiment shown in FIG. 9 except that it is different from the case shown in FIG.

  That is, in the fixing mode shown in FIG. 10, unlike the mode shown in FIG. 9, the column main body 21 is sandwiched between the steel pipe 3 and the guard fence bracket 4.

  As described above, since the fixing according to the two modes of the mode illustrated in FIG. 9 and the mode illustrated in FIG. 10 is possible, the protective fence 1 according to the present embodiment is, as illustrated in FIG. The extending direction can be freely adjusted.

  That is, the guard fence 1 according to the present embodiment described above can adjust the angle in the plane direction of the steel pipe 3 while ensuring safety and aesthetics.

  Next, a modified example of the protective fence bracket used in the protective fence according to the present invention will be described.

  FIG. 11 is a perspective view showing a modified example of the protective fence bracket. FIG. 12 is a plan view showing a guard fence bracket used in a guard fence according to a modification. FIG. 13: is a front view which shows the bracket for guard fences used for the guard fence which concerns on a modification. FIG. 14 is a side view showing a guard fence bracket used for a guard fence according to a modification. FIG. 15 is a rear view showing a bracket for a protective fence used in a protective fence according to a modification.

  The guard fence bracket 4 ′ according to this modification includes a first recess 45 and a second recess in the first side face 41 ′ and the second side face 42 ′, respectively, along the direction perpendicular to the axial direction of the guard fence bracket. 46 is provided. Further, first bolt fastening holes 41 b ′ and 42 b ′ are provided in the first recess 45 and the second recess 46, respectively. Other configurations are the same as those of the protective fence bracket 4 used in the above-described embodiment.

  That is, the guard fence bracket 4 ′ according to the present modified example is opposite to the first side face 41 ′ and the small cutout portions 41 a ′ formed at both ends of the first side face 41 ′, similarly to the guard fence bracket 4. An important notch 42a ′ formed at both ends of the second side surface 42 ′, which is larger than the small notch 41a ′ and through which the steel pipe 3 can pass, and the first side surface 41 ′ and the second side surface 42 ′. , First bolt fastening holes 41b ′, 42b ′ used for fastening the guard fence bracket 4 ′ to the support column 2 by bolts, and the first side face 41 ′ and the second side face 42 ′. The third side surface 43 'and the fourth side surface 44' are formed so as to sandwich each of them, and one at each end portion of the third side surface 43 'and the fourth side surface 44' in the vicinity of the end of the protective fence bracket 4 '. Steel pipe provided Second bolt fastening hole 43a for use in the fixed ', 44a' is provided with a, a.

  Further, as described above, the first side surface 41 ′ and the second side surface 42 ′ are provided with the first concave portion 45 and the second concave portion 46 along the direction perpendicular to the axial direction of the protective fence bracket 4 ′, respectively. First bolt fastening holes 41b ′ and 42b ′ are provided in the first recess 45 and the second recess 46, respectively.

  FIG. 16 is a top view showing an example of a state in which the steel pipe is fixed to the support column using the guard fence bracket according to the modified example. FIG. 17 is a top view showing another example of a state in which a steel pipe is fixed to a support column using a guard fence bracket according to a modified example.

  The support 2 and the steel pipe 3 and the steel pipe 3 and the guard fence bracket 4 'are fixed in the same manner as the guard fence bracket 4 according to the above-described embodiment.

  That is, as shown in FIG. 16, the guard fence bracket 4 ′ is fixed to the support 2 in the state where the first side face 41 ′ of the guard fence bracket 4 ′ is in contact with the main body of the support 21. The bolt 5 is inserted from the side so as to penetrate the pillar body 21 of the pillar 2, and the nut 51 is screwed to the end of the penetrated bolt 5.

  The steel pipe 3 is also fixed to the protective fence bracket 4 'by bolts and nuts (not shown). That is, the steel pipe 3 is fixed by inserting the tip portion from the important notch 42a ′ of the guard fence bracket 4 ′ into the guard fence bracket 4 ′, and overlapping the hole 32 and the second bolt fastening hole 43a ′. The bolts are inserted and passed through the hole 32 and the second bolt fastening hole 43a ′ in the combined state, and a nut is screwed into the tip portion of the bolt.

  The angle formed by the two steel pipes 3 fixed to the protective fence bracket 4 ′ is 0 in the plane direction with respect to the first side surface 41 ′, depending on the size of the important notch 42a ′, as will be described later. It can be adjusted to ˜45 degrees. In the state shown in FIG. 9, the angle formed by the two steel pipes 3 is 45 degrees.

  In the state where the steel pipe 3 is fixed to the bracket 4 'for the protective fence, no gap is formed between the important notch 42a' and the steel pipe 3, so that an operator or a passer-by can pass through the gap without covering with tape or the like. Fingers cannot be inserted.

  Further, since the important notch portion 42a ′ is provided in the protective fence bracket 4 ′, the steel pipe 3 is within an angle corresponding to the size of the important notch portion 42a ′ (in the present embodiment, the first side surface 41 ′). Can be rotated around the inserted bolt without contacting the second side surface 42 '.

  Furthermore, when the steel pipe 3 is rotated within the above-mentioned angle, the tip end portion on the side to which the steel pipe 3 is fixed is covered with the first side face 41 ′ that is wider in the left-right direction in FIG. 9 than the second side face 42 ′. As a result, the angular end is not exposed to the outside.

  As described above, the widths of the first side surface 41 ′ and the second side surface 42 ′ are different, so that the end of the steel pipe 3 is not exposed to the outside of the protective fence bracket 4 ′. The attachment angle of the steel pipe 3 can be adjusted.

  In the present invention, the attachment angle of the steel pipe 3 is not limited to 0 to 45 degrees, and can be set to a range other than the above-described range by changing the size of the important notch 42a '. For example, by making the size of the important notch portion 42a ′ smaller than that in the above-described embodiment, the upper limit of the attachment angle becomes smaller than 45 degrees, and the size of the important notch portion 42a ′ is made larger than that in the above-described embodiment. Thus, the upper limit of the attachment angle can be made larger than 45 degrees.

  FIG. 17 is a top view illustrating another example of a state in which a steel pipe is fixed to a support column by a bracket for the protective fence in the protective fence according to the embodiment of the present invention.

  In the state shown in FIG. 17, with the second side surface 42 ′ in contact with the support column 2, the bolt 5 is screwed from the first side surface 41 ′ side to fix the protective fence bracket 4 ′ to the support column 2. This is different from the case shown in FIG. 16 described above.

  In such a fixing mode, unlike the mode shown in FIG. 16, the column main body 21 is sandwiched between the steel pipe 3 and the protective fence bracket 4 ′.

  As described above, since the fixing according to the two modes of the mode illustrated in FIG. 16 and the mode illustrated in FIG. 17 is possible, even if the guard fence 1 according to the present modification is used, as illustrated in FIG. The extending direction of the protective fence 1 in the plane direction can be freely adjusted while ensuring the beauty.

  In addition, the guard fence bracket 4 ′ according to this modification is provided with a first recess 45 and a second recess 46 on the first side surface 41 ′ and the second side surface 42 ′, respectively, and the first recess 45 and the second recess 45 are provided. First bolt fastening holes 41 b ′ and 42 b ′ are provided in 46.

  In the case of FIG. 16, for example, the bolt 5 is screwed while fitting the head of the bolt 5 into the second recess 46 and the peripheral wall of the support 2 is also fitted into the first recess 45. 2 and the guard fence bracket 4 'are fixed.

  That is, the two recesses 45 and 46 are formed, and the head of the bolt 5 is fitted therein, and the peripheral wall of the support column 2 is also fitted into the first recess 45, so that the protective fence bracket 4 ' The length of the bolt 5 required for fixing can be shortened.

  When a load due to snow or the like is applied to the steel pipe 3 or the protective fence bracket 4 ', if the length of the bolt 5 required to fix the protective fence bracket 4' to the support column 2 is increased, this principle is used for the protective fence. The force applied to the bolt 5 at the boundary portion between the bracket 4 ′ and the column 2 is increased. When the force applied to the bolt 5 is increased, the possibility of breakage of the bolt 5 and dropping of the protective fence bracket 4 ′ from the column 2 increases.

  However, in the guard fence bracket 4 ′ according to this modification, the length of the bolt 5 required for fixing the guard fence bracket 4 ′ to the column 2 can be shortened, so that the force applied to the bolt 5 is reduced. This can effectively prevent breakage of the bolt 5 and dropping of the protective fence bracket 4 '.

  Further, by providing the first recess 45 or the second recess 46, the contact area with the support column 2 can be increased when the protective fence bracket 4 'is fixed to the support column 2, and stable fixing can be performed. It becomes like this.

  In the present modification, the first recess 45 and the second recess 46 are provided in both the first side surface 41 ′ and the second side surface 42 ′. However, the present invention is not limited to this, and only one of them is provided. May be provided. Even in such an aspect, the length of the bolt 5 required for fixing the bracket 4 ′ for the protective fence to the support column 2 can be shortened similarly to the effect according to the modified example described above. It is possible to effectively prevent the bracket 4 'from falling off.

DESCRIPTION OF SYMBOLS 1 Guard fence 2 Strut 3 Steel pipe 4 Guard fence bracket 5 Bolt 21 Strut body 22 Hole 31 Pipe body 32 Hole 41, 41 'First side face 41a, 41a' Notch 41b, 41b 'First bolt fastening hole 42 , 42 Second side surfaces 42a, 42a ′ Important notches 42b, 42b ′ First bolt fastening holes 43, 43a ′ Third side surfaces 43a, 43a ′ Second bolt fastening holes 44, 44 ′ Fourth side surfaces 44a, 44a ′ Second Bolt fastening hole 45 1st recessed part 46 2nd recessed part

Claims (5)

In the protective fence formed by fixing the steel pipe to the support, it is a bracket for the protective fence that connects the ends of the two steel pipes and fixes them to the support,
A small notch formed on both ends of the first side surface and notched so that the first side surface does not contact the steel pipe when the steel pipe is attached along the first side surface;
The second side surface opposite to the first side surface is formed at both ends, and is a larger notch than the small notch portion. 2 important side notches cut into a size that allows the steel pipe to be inserted without contacting the steel pipe;
A first bolt fastening hole provided at a position facing each other on the first side surface and the second side surface, and used to fasten the bracket for the protective fence to the column;
A third side surface and a fourth side surface formed so as to sandwich the first side surface and the second side surface;
A second bolt fastening hole used for fixing the steel pipe, provided at both ends of the third side surface and the fourth side surface in the vicinity of the end of the bracket for the protective fence;
Equipped with a,
The second bolt fastening hole has a shape in which at least a part of the elongated hole shape is inclined with respect to the first side surface, and the fixing position of the steel pipe can be changed so that the end portion is not exposed. Bracket for fence. The said 1st side surface WHEREIN: A 1st recessed part is formed along the direction perpendicular | vertical to the axial direction of the said bracket for protective fences, The said 1st bolt fastening hole is provided in the said 1st recessed part. The bracket for a protective fence according to 1 . The second side surface includes a second recess formed along a direction perpendicular to the axial direction of the protective fence bracket, and the second bolt recess is provided with the first bolt fastening hole. The bracket for protective fences according to 1 or 2 . A protective fence formed by fixing a steel pipe to a support using a bracket for a protective fence,
The bracket for the protective fence is the bracket for the protective fence according to any one of claims 1 to 3 ,
The steel pipe has a hole formed through the steel pipe in the vicinity of the end,
In a state where the two steel pipes are not in contact with the second side surface of the protective fence bracket while forming an angle in plan view, the second bolt fastening holes and the hole portions of the steel pipes are overlapped and bolted. The end of the steel pipe bolted side is covered with the first side surface of the protective fence bracket and is not visible from the outside.
The support is formed with a hole for fastening the guard fence bracket on the side surface, and the first bolt fastening hole on either the third side or the fourth side of the guard fence bracket and the support A protective fence characterized in that it is bolted in a state where it is overlapped with the hole. The fences, safety barriers according to claim 4, wherein said steel pipe is fixed at an angle of 0 to 45 degrees with respect to the first side surface of the bracket for the safety barrier.

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