JP3085470U - Road security fence - Google Patents

Abstract

(57) [Problem] To provide a road safety fence that is lightweight, easy to mass-produce, has low manufacturing cost, and does not require painting. A substantially quadrangular frame 1 made of an aluminum alloy rod is provided.
The left and right sides of the frame 1 are used as main pillars 2, the upper and lower sides are used as horizontal bars 3, and a horizontal bar 4 made of two aluminum alloys is passed over these main columns 2. The signboard 5 is fixed to the bodies 4 and 4, and on the outer periphery of the upper part of each main pillar 2 on both sides,
The fixing brackets 7 each having a U-shaped cross section are fitted, and both ends of each of the fixing brackets 7 are projected rearward to fix the respective main columns 2 to the fixing brackets 7. The upper ends of the auxiliary pillars 8 of the same shape and the same material as those of 2 are fitted to each other, and are pivotally supported by the fixing brackets 7. The horizontal bar 9 is fixed between the lower ends of these auxiliary pillars 8.
At the time of use, the auxiliary column 8 is opened with respect to the main column 2 with the fixing bracket 7 as a fulcrum.
The main pillars 2 and the auxiliary pillars 8 can be overlapped and folded when unnecessary.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a road security fence that prevents or warns entry by preventing people or vehicles from entering a restricted area such as road construction.

[0002]

[Prior art]

 Conventionally, this road security fence is constructed by connecting two substantially quadrilateral frames at their tops to rotate freely, and opening the above two frames in a substantially A-shape viewed from the lateral direction to open the ground. These frames are provided with horizontally long signboards, and these signs are decorated with characters and designs. And the said frame is made of steel materials, such as iron, and paints it from above.

[0003]

[Problems to be solved by the invention]

 However, since these security fences were made of steel such as iron, they were heavy in their entirety and were difficult to handle during transportation or installation, which was inconvenient. Also, steel materials are easily corroded and must be painted after assembly. Furthermore, when they were no longer needed, they were difficult to discard and could hardly be recycled.

The present invention solves the above-mentioned problem by providing a road safety fence that is lightweight, easy to mass-produce, has low manufacturing costs, and does not require painting.

[0005]

[Means for Solving the Problems]

 According to the first aspect of the present invention, a substantially quadrangular frame is provided by a cylindrical rod made of an aluminum alloy, and the right and left rods on the left and right sides of the frame are main pillars having an octagonal cross section. The upper and lower rods are contiguous horizontal rods, each section of which is approximately square in cross section, with each side bulging outward, and a cylindrical horizontal rod made of two aluminum alloys at an interval above these main pillars. , Fix the signboard that has been stopped up and down on these two horizontal bars, and attach the U-shaped cross-section fixing bracket to the outer periphery of each main pillar above the signboard from above. The main pillars are fixed to the fixing brackets by projecting both ends of each fixing bracket rearward, and an auxiliary pole shorter than the main pole is made of the same material as the above main pillar between both ends of each protruding fixing bracket. Each of these auxiliary columns is pivotally supported by each fixing bracket, and between the lower ends of these auxiliary columns, each side of the approximately square section is outside. One in which was fixed by passing the horizontal bar of the hourglass-shaped bulging. And, at the time of use, the auxiliary pillars are opened with respect to the main pillars on both sides with the fixing brackets as fulcrums, and the main pillars and the auxiliary pillars are inclined obliquely to each other in an A-shape, and can be stably self-supported, A security fence that allows each main pillar and each auxiliary pillar to be folded up when not needed.

According to a second aspect of the present invention, a substantially quadrangular frame is provided by a rod made of an aluminum alloy, and rods on both left and right sides of the frame are formed as main columns having an octagonal cross section. The upper and lower rods are contiguous horizontal rods, each section of which is approximately square in cross section, with each side bulging outward, and a cylindrical horizontal rod made of two aluminum alloys at an interval above these main columns. , And fix the signboard that has been stopped up and down on these two horizontal bars, and attach the U-shaped fixing bracket to the outer circumference of the main pillars on both sides above the signboard from above, respectively. Each main column is fixed to the fixing bracket by projecting both ends of each fixing bracket rearward, and the upper end of the auxiliary column shorter than the main column, which is the same material as the above main column and has the same shape as the main column, is fixed between the protruding fixing brackets at both ends. Each of these auxiliary columns is pivotally supported on each fixing bracket, and between the lower ends of these auxiliary columns, each having a substantially square cross section Pass the fixed horizontal bar with the sides bulging outward and fix it, and fit an auxiliary sign with a sign fixed to a quadrilateral frame between the main pillars on both sides below the sign, and attach this auxiliary sign The center of both sides is pivotally supported on the main columns on both sides to make it freely rotatable and fixable. When used, auxiliary columns are opened on both main columns with the above-mentioned fixing brackets as fulcrums, and each main column and each auxiliary The pillars are slanted obliquely in the shape of a letter A, and can be stably self-supported. Each of the main pillars and each of the auxiliary pillars can be folded together when unnecessary.

A third aspect of the present invention is the road safety fence according to the first or second aspect of the present invention, which is provided with a stopper for regulating the degree of opening between the main pillars and the auxiliary pillars. According to a fourth aspect of the present invention, there is provided the road safety fence according to any one of the first, second and third aspects, wherein a hook is provided on an outer surface of each of the fixing brackets.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. A substantially quadrangular frame 1 is provided by a cylindrical rod made of an aluminum alloy, and the rods on both sides of the frame 1 are main pillars 2 and 2 having an octagonal cross section and a large number of grooves on the outer periphery. The upper and lower rods of the frame 1 are lateral rods 3, 3 each having a substantially square cross-section, each of which has a continuous shape with each side bulging outward, and having a large number of grooves on the outer periphery. 2 and 3 show cross sections of the main column 2 and the horizontal bar 3, respectively.

[0009] Two horizontal aluminum rods 4 made of an aluminum alloy are fixed to the upper part of the main pillars 2 and 2 at intervals. As shown in FIG. 4, each of the horizontal bars 4 and 4 has a stepped portion 4a. Is fixed to two horizontal rods 4 and 4 with screws 6. When placing the sign 5 on the steps 4a of the horizontal rods 4 and 4, the adhesive is interposed between the steps 4a and the sign 5 so that the sign 5 is temporarily held. The screw 6 can be easily screwed. In addition, the signboard 5 displays in advance a display such as a tiger mark indicating that construction is in progress or the “name of the construction company” of the work, and in particular, by attaching a “high-brightness reflective sheet” to the signboard 5, Visibility, as defined by the Road Traffic Act, can be improved. Therefore, when driving a vehicle, etc., it is possible to catch the fact that construction is in progress from a distance and to avoid an accident.

[0010] Furthermore, fixing brackets 7 each having a U-shaped cross section are fitted to the outer periphery of the main pillars 2 and 2 on both sides above the signboard 5 from above, and both ends of each fixing bracket 7 project rearward. Thus, each main column 2 is pivotally supported on each fixture 7 by a pin. The upper ends of the auxiliary pillars 8 of the same shape and the same material as the main pillars 2 and shorter than the main pillars 2 are fitted between the protruding ends of the respective fixing brackets 7, and these auxiliary pillars 8 are attached to the respective fixing brackets 7. The supporting pillars 8 are supported by pins and fixed between the lower ends of the auxiliary pillars 8, 8 by passing a continuous bar 9 having a substantially square cross-section with each side bulging outward. The cross section of the horizontal bar 9 is similar to that of the horizontal bar 3 (see FIG. 3). Further, a foldable stopper 10 for regulating the degree of opening between the main columns 2 and the auxiliary columns 8 is provided across one main column 2 and the auxiliary column 8 facing the main column 2. A hook 11 is provided on the outer surface of each of the fixtures 7 so as to be rotatable in the horizontal direction with the hook fixture 12 supporting a vertical portion thereof. At the upper and lower ends of each of the main pillars 2 and the auxiliary pillars 8, bases of caps 13 made of a substantially hemispherical synthetic resin for closing the openings are fitted.

Further, a sign 14b is fixed to a quadrilateral frame 14a between the lower horizontal bar 4 and the lower horizontal bar 3 and between the main pillars 2 on both sides by screws 14c. Auxiliary signboards 14 are fitted, and shafts (not shown) protruding from the central portions on both sides of the auxiliary signboards 14 are respectively penetrated through the main pillars 2 and 2 on both sides to be pivotally supported. The auxiliary sign 14 is rotatably and freely fixed to the main pillars 2 and 2 on both sides by screwing a wing nut 15 on the outside of the main sign 2. The auxiliary signboard 14 is larger than the signboard 5 and can be displayed on both sides of the signboard 14b. For example, the sign "arrow" for guiding traffic is displayed on one side, and the sign "During construction" is displayed on the other side. And the like, and if necessary, the auxiliary sign 14 can be turned upside down as shown in FIG. 7 to change the display. Therefore, an "arrow" for guiding traffic to the right can be displayed on one surface of the auxiliary signboard 14, and an "arrow" for guiding traffic to the left can be displayed on the other surface. In this case, when changing the direction of the "arrow" that guides the traffic according to the progress of the construction, it can be easily changed only by turning over the auxiliary signboard 14.

In use, the lower ends of the main columns 2 and 2 and the lower ends of the auxiliary columns 8 and 8 are opened with the fixing bracket 7 as a fulcrum, so that the main columns 2 and the auxiliary columns 8 are When viewed obliquely from each other, the stoppers 10 are fully extended when they are inclined obliquely in the shape of the letter A, and the security fence can be stably erected. When unnecessary, the main pillars 2 and the auxiliary pillars 8 can be overlapped and folded as shown in FIG. Further, when the auxiliary signboard 14 is not required, the wing nuts 15 on both sides can be loosened and removed from the frame 1 for use.

[0013] The security fence is provided at the side of the construction area to prevent traffic or people from entering a restricted area such as a construction area during road construction or electric construction so as to prevent people and cars from entering the area. Guidance is provided, but it is not limited to these, and it can be conveniently installed and used in restricted areas in parks, parking lots, stores and buildings, etc. In addition, when the installation location is strong wind or the like, if the main pillar 1 and the auxiliary pillar 8 are put on the horizontal bars 3 and 9 at the lower ends of the pillars, etc., they will not fall down due to strong wind.

[0014]

[Effect of the invention]

 In the invention of claim 1, since the frame body except for the signboards and fixing brackets of the security fence is made of aluminum alloy, it is lightweight, easy to assemble and remove on site, handling during transportation, and the like. Yes, it looks very smart because of the aluminum alloy. In addition, because they are made of aluminum alloy, they can be recycled and easily disposed of when they are discarded. Furthermore, aluminum alloys have the advantage that they can be easily mass-produced by extrusion molding and that they do not need to be coated because they are not easily corroded, so that manufacturing costs can be reduced. In addition, in addition to the effect of the above-mentioned claim 1, the invention of claim 2 increases the display area by providing a rotatable and fixable auxiliary signboard, and enables detailed display of a construction person, a construction period, and the like. Is turned over, two types of display can be performed, which is extremely convenient.

Further, in addition to these effects, according to the invention of claim 3, since a stopper for regulating the degree of opening between the main column and the auxiliary column is provided, the main column and the auxiliary column can be further extended when assembled. It does not open, and can maintain a stable standing state even with a slight impact. Also, in the invention of claim 4, since hooks are provided on both sides of the security fence, a plurality of security fences are arranged in a row in a row with an interval, and a color such as a plastic material is attached to the hook of the adjacent security fence. Both ends of the chain can be hung, and traffic can be blocked over a wide width by a small number of security fences. In addition, the hook can be used for other appropriate uses such as applying a wire of a night light bulb.

[Brief description of the drawings]

FIG. 1 is a perspective view of a security fence according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main pillar and an auxiliary pillar of the security fence according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of a horizontal bar of the security fence according to the embodiment of the present invention.

FIG. 4 is a sectional view showing the configuration of the upper and lower horizontal bars and the signboard of the security fence according to the embodiment of the present invention.

FIG. 5 is a front view of the security fence according to the embodiment of the present invention.

FIG. 6 is a side view of the security fence according to the embodiment of the present invention.

FIG. 7 is a perspective view of the security fence according to the embodiment of the present invention, showing a state in which an auxiliary signboard is rotated.

FIG. 8 is a side view showing a folded state of the security fence according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Main pillar 3 Horizontal bar 4 Horizontal bar 5 Signboard 6 Screw 7 Fixing bracket 8 Auxiliary pole 8a Hanging part 9 Horizontal bar 10 Stopper 11 Hook 12 Hook fixing bracket 13 Cap 14 Auxiliary signboard 15 Wing nut

Claims (4)

[Utility model registration claims] 1. A substantially quadrangular frame is provided by a rod made of an aluminum alloy, rods on both left and right sides of the frame are main pillars, and upper and lower rods of the frame are horizontal bars. A horizontal bar made of two aluminum alloys is provided at the top of the main column with a space between them, and the signboards that are stopped up and down are fixed to these two horizontal bars, and the signboard of each main column on both sides above Attach the fixing brackets having a U-shaped cross section to the upper periphery, projecting both ends of each fixing bracket backward, and fixing each main pillar to the fixing bracket. Both ends of each protruding fixing bracket In the meantime, put the upper ends of the auxiliary pillars shorter than the main pillar with the same shape and the same material as the main pillar,
Each of these auxiliary pillars is pivotally supported on each fixing bracket, and a horizontal bar is passed between the lower ends of these auxiliary pillars and fixed. Opens,
Each main pillar and each auxiliary pillar are obliquely inclined to each other in a substantially A shape,
A road safety fence characterized by being able to stably stand on its own and being able to fold each main pillar and each auxiliary pillar when not needed. 2. A substantially quadrangular frame is provided by a rod made of an aluminum alloy, rods on both left and right sides of the frame are main columns, and upper and lower rods of the frame are horizontal bars. A horizontal bar made of two aluminum alloys is provided at the top of the main column with a space between them, and the signboards that are stopped up and down are fixed to these two horizontal bars, and the signboard of each main column on both sides above Attach the fixing brackets having a U-shaped cross section to the upper periphery, projecting both ends of each fixing bracket backward, and fixing each main pillar to the fixing bracket. Both ends of each protruding fixing bracket In the meantime, put the upper ends of the auxiliary pillars shorter than the main pillar with the same shape and the same material as the main pillar,
Each of these auxiliary columns is pivotally supported by each fixing bracket, and a horizontal bar is fixed between the lower ends of these auxiliary columns and fixed, and a quadrilateral frame is provided between the main columns on both sides below the signboard. The auxiliary sign with the signboard fixed is fitted, and the center of both sides of this auxiliary sign is pivotally supported on the main pillars on both sides to be rotatable and fixable. The auxiliary pillars are opened, and each main pillar and each auxiliary pillar are inclined obliquely in the shape of the letter A to each other so that they can stably stand on their own. When unnecessary, each main pillar and each auxiliary pillar can be overlapped and folded. A special feature is a road security fence. 3. A road safety fence according to claim 1, further comprising a stopper for regulating a degree of opening between said main column and said auxiliary column. 4. The road safety fence according to claim 1, wherein a hook is provided on an outer surface of each of the fixing brackets.