JP3675614B2 - Protective fence - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a protection fence such as a crossing prevention fence, a fall prevention fence, and a boundary fence installed at a boundary between a sidewalk and a roadway.
[0002]
[Prior art]
Conventionally, in a protective fence in which a horizontal beam is installed on the upper end of a support column, one end of a connection member having an outer diameter substantially the same as the inner diameter of the horizontal beam is inserted into the end of the horizontal beam. Insert the other end of the member into the end of the next horizontal beam, place the connecting portion of the horizontal beam on the fixture provided at the upper end of the column, and pass through the bolt holes provided in the fixture to connect both ends of the connecting member. Bolts were inserted into the female screw portions provided on the top, and the horizontal beam was attached to the fixture at the upper end of the column. The contact surface of the fixture with the horizontal beam is generally the same shape as the outer shape of the horizontal beam so that when the protective fence is installed in a straight line, the horizontal beam and the fixture are well fitted.
[0003]
[Problems to be solved by the invention]
However, in the case of the protective fence as described above, the horizontal beam and the fitting are not well-contained when the protective fence is installed in a non-linear shape in plan view or when the protective fence is installed on a sloped land. It was necessary to use a proper fixture.
[0004]
In view of the conventional drawbacks, the present inventor has provided a protective fence that is easy to construct and can be installed in a non-linear shape in plan view with a gradient, as a result of intensive studies.
[0005]
[Means for Solving the Problems]
The guard fence according to claim 1 of the present invention is a guard fence in which a horizontal beam is attached to the upper end of a column erected on the ground surface via a fixture in the left-right direction. And a mounting part pivotally attached to the upper part of the cap part. The mounting part is elongated in the left-right direction with respect to the width, and through holes are formed in both right and left ends. A ridge line having the same shape as the horizontal beam outer shape is formed in the width direction on the upper surface of the mounting portion, and the bolt hole is drilled so that the center thereof is located on the ridge line. gradient leading to the lateral center of the platform from the ridge line left and right edge and the left-right direction center of the mounting portion so recess widens towards the left and right edges are formed respectively, ridges of the mounting portion The left and right horizontal beams are mounted and mounted on the top. Horizontal beams and fixtures can be attached at different angles in both the horizontal and vertical directions, so that adjacent horizontal beams can be connected at an angle, and they can be protected in a non-linear manner or with a gradient in plan view. It is easy to install a fence.
[0006]
Also, the safety barrier of the present invention according to claim 2, wherein the horizontal beam consists of a circular cross section of the tube, the ridge line of the bearing member top surface is formed in a semicircular shape, the lateral center of the mounting portion from the ridge line horizontally those gradients that lead to the edge and the left-right direction center of the mounting portion so recess widens towards the left and right edges are formed respectively, the fitting horizontal beam with the vertical and horizontal angle It fits well when attached and can be easily installed in any installation location without the use of special fixtures.
[0007]
Further, the protective fence according to claim 3 of the present invention is such that the left and right end portions of the connecting member provided with female screw portions at the left and right end portions of the rod-like body are respectively inserted into the end portions of the adjacent horizontal beams. Bolts are screwed into the female screw portions of the connecting members through the bolt holes of the portions, and the ends of the adjacent horizontal beams are firmly connected to each other and can be connected at an angle. The rod-like body referred to in the present invention only needs to be long enough to connect the ends of adjacent horizontal beams to each other, and may be a plate-like body having an appropriate length.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings. A horizontal beam 1 is attached between struts 3 erected on the ground surface at appropriate intervals to form a protective fence. The support 3 is provided with a fixture 2 at the upper end, and the upper horizontal beam 1 is attached to the fixture 2 and the lower horizontal beam 1 is attached to the side wall. The fixture 2 provided on the upper side of the support column 3 includes a cap portion 21 attached to the upper end of the support column 3 and a mounting portion 22 attached to the upper portion of the cap portion 21. The beam 1 is mounted and mounted. The support 3 is made of a hollow metal body such as a steel pipe and is appropriately subjected to a surface treatment such as painting or plating.
[0009]
The upper horizontal beam 1 is mounted on a fixture 2 provided at the upper end of the column 3. The horizontal beam 1 is produced by cutting a steel pipe to an appropriate length and drilling bolt holes at both ends. The connecting member 4 is attached to the inside of the upper horizontal beam 1, and the bolt is screwed into the female screw portion of the connecting member 4 through the bolt hole formed in the mounting portion 22, so that the horizontal beam 1 is at the upper end of the support 3. It attaches to the fixture 2. The horizontal beam 1 is not limited to a tubular body such as a steel pipe, and a mold material such as an aluminum alloy may be used. However, a tubular body having a wall surface over the entire circumference of the cross section, particularly a round pipe having a circular cross section is suitable. Used for.
[0010]
The connecting member 4 is formed into a rod-like body by bending a steel plate into a U-shape, and through holes are formed at both left and right ends of the rod-like body, and a nut is welded with the center axis aligned with the center of the through-hole. It is made into a female screw part. A cover having an inner diameter larger than the outer diameter of the horizontal beam 1 is attached to the center of the connecting member 4. This cover has a shape in which a lower portion of a cylindrical body having an inner diameter larger than the outer diameter of the horizontal beam 1 is cut out, and the lower portion is attached to the center of the connecting member 4. The connection member 4 may be appropriately subjected to surface treatment such as plating, or may be made of an inferior metal plate such as a stainless steel plate instead of the steel plate. The cover may be produced by molding a synthetic resin, or may be produced by casting a metal such as an aluminum alloy or zinc. Although the rod-shaped body constituting the connecting member 4 is U-shaped as described above, it is not limited to this, and it is only necessary to use one that is bent into an appropriate shape such as a circular cross section, and female screw portions at both ends of a rectangular plate. What was provided may be used.
[0011]
The fixture 2 includes a cap portion 21 attached to the upper end of the support column 3 and a placement portion 22 pivotally attached to the upper portion of the cap portion 21. The cap portion 21 includes a cylindrical portion having an outer diameter adapted to the inner diameter of the column 3, a lid body in which one end of the cylindrical portion is closed, a bowl-shaped portion in which the lid body extends outwardly, And a receiving part in which a plate-like body whose upper part is cut out in a semicircular shape is formed, and a pivot hole is formed in the center of the receiving part. The mounting portion 22 is elongated in the left-right direction with respect to the width, has a bowl shape adapted to the outer shape of the horizontal beam 1, and has through holes formed at both left and right end portions to form bolt holes, and the upper surface of the mounting portion. A ridge line 23 having the same shape as the horizontal beam outer shape is formed in the width direction, and the bolt hole is drilled so that the center thereof is located on the ridge line 23, and the horizontal center of the mounting portion 22 is formed from the ridge line 23. In addition, gradients extending to the center in the left-right direction and the left and right edges of the mounting portion 22 are formed so that the recesses expand toward the left and right edges. When the horizontal beam 1 having a circular cross section is used, a ridge line 23 having a semicircular cross section is formed. The ridge line 23 extends from the ridge line 23 toward the center in the horizontal direction and the left and right edges of the mounting portion 22. Since the gradients extending to the center in the left-right direction and the left and right edges of the mounting part are formed, the horizontal beam 1 can be attached at an angle in the vertical direction and / or the horizontal direction. The fixture is preferably produced by casting a zinc alloy or an aluminum alloy, but may be produced by molding a synthetic resin or the like.
[0012]
【The invention's effect】
As described above, the protective fence according to claim 1 of the present invention is a protective fence in which a horizontal beam is attached to the upper end of a support column erected on the ground surface via a fixture, respectively. The cap portion is attached to the upper end of the support column and the mounting portion pivotally attached to the upper portion of the cap portion. The mounting portion is long in the left-right direction with respect to the width, and is transparent to both left and right end portions. A hole is drilled to form a bolt hole, and a ridge line having the same shape as the horizontal beam outer shape is formed in the width direction on the upper surface of the mounting portion, and the bolt hole is drilled so that its center is located on the ridge line. is set, the slope leading to the lateral center and the left and right edges of the mounting portion so that the recess towards the lateral center and the left and right edges of the mounting portion from the ridge line spreading are formed respectively, the mounting The left and right horizontal beam ends are mounted on the ridge line Since the horizontal beam and the fixture can be attached at different angles in the horizontal and vertical directions, adjacent horizontal beams can be connected at an angle, in a non-linear shape in plan view, It is easy to install a protective fence with a slope.
[0013]
Also, the safety barrier of the present invention according to claim 2, wherein the horizontal beam consists of a circular cross section of the tube, the ridge line of the bearing member top surface is formed in a semicircular shape, the lateral center of the mounting portion from the ridge line horizontally those gradients that lead to the edge and the left-right direction center of the mounting portion so recess widens towards the left and right edges are formed respectively, the fitting horizontal beam with the vertical and horizontal angle It fits well when attached and can be easily installed in any installation location without the use of special fixtures.
[0014]
Further, the protective fence according to claim 3 of the present invention is such that the left and right end portions of the connecting member provided with female screw portions at the left and right end portions of the rod-like body are respectively inserted into the end portions of the adjacent horizontal beams. Bolts are screwed into the female screw portions of the connecting members through the bolt holes of the portions, and the ends of the adjacent horizontal beams are firmly connected to each other and can be connected at an angle. The rod-like body referred to in the present invention only needs to be long enough to connect the ends of adjacent horizontal beams to each other, and may be a plate-like body having an appropriate length.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an upper portion of a support post of the guard fence of the present invention.
FIG. 2 is a plan view showing an example of an attachment for the guard fence of the present invention.
FIG. 3 is a sectional view showing a horizontal beam mounting state of the guard fence of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Horizontal beam 2 Mounting tool 21 Cap part 22 Mounting part 23 Ridge line 3 Support | pillar 4 Connection member

Claims (3)

In a protective fence in which a horizontal beam is attached to the upper end of a support column erected on the ground surface in the left-right direction via a fixture, the fixture includes a cap portion attached to the upper end of the support column and a cap portion of the cap portion. is composed of a pivotally mounted mounting portion at the top, placing portion is the left-right direction is made longer than the width, together with the through hole on the left and right end portions are made with drilled bolt holes, placed the part upper surface ridge of the horizontal beam profile having the same shape are formed in the width direction, and the bolt holes are drilled so that its center is located on the ridge, the lateral center and the left and right of the mounting portion from the ridge formed slope leading to the edge and the left-right direction center of the mounting portion so recess widens towards the left and right edges, respectively, each end of the horizontal beam of the left and right on the edge line of the mounting portion A protective fence characterized by mounting and mounting. The horizontal beam consists of a tube with a circular cross section, and the ridgeline on the top surface of the mounting part is formed in a semicircular shape, and the concave part spreads from this ridgeline toward the center in the left- right direction and the left and right edges of the mounting part. The protective fence according to claim 1, wherein gradients are formed to reach the center in the left-right direction and the left and right edges of the mounting portion.   The left and right end portions of the connecting member provided with female screw portions at the left and right end portions of the rod-shaped body are respectively inserted into the end portions of the adjacent horizontal beams, and the bolts are passed through the bolt holes of the mounting portion to connect the female screw portions of the connecting member. The protective fence according to claim 1 or 2, wherein the protective fence is screwed onto the protective fence.

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