JPH0431296Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a safety fence installed at the boundary between a road and a sidewalk, or between a road and a residential area.

[Prior art]

Conventionally, as a safety fence, as published in Japanese Utility Model Publication No. 52-20125, vertical upper male brackets and lower male brackets are fixed to the upper and lower parts of the sides of pillars fixed at intervals, respectively. and fixing a downwardly opening groove-shaped upper female bracket and lower female bracket to the upper and lower parts of both ends of the fence body, respectively, and fitting the upper female bracket to the upper male bracket from above and connecting them with bolts, A safety fence is known in which the lower female bracket is fitted into the lower male bracket from above and connected with bolts. In the case of this safety fence, the downward opening groove-shaped female bracket is fitted from above to the vertical male bracket, so almost no rainwater enters the joint between the male bracket and the female bracket. Therefore, it has the advantage of being able to prevent rusting of joints due to rainwater infiltration and a decrease in strength due to corrosion.

[Problem that the invention attempts to solve]

However, in the case of the conventional safety fence, 1
When fitting the upper female bracket and lower female bracket fixed to both ends of the two fence bodies from above to the upper male bracket and lower male bracket fixed to the pillars on both sides, the four female brackets are Two male brackets must be mated while being aligned in the horizontal direction at the same time.As a result, the mating operation cannot be performed quickly, so it takes a long time to assemble the safety fence, and it requires only one person to do the mating. Since it is difficult for a worker to simultaneously horizontally align the four female brackets while lifting the fence, two workers are required, which is uneconomical as the number of workers increases.

[Purpose of the invention, structure]

This invention provides a safety fence that can advantageously solve the above-mentioned problems in the conventional safety fence in which four female brackets fixed to the fence body are fitted to four male brackets fixed to the posts. The gist of this invention is that vertical upper male brackets 2 and lower male brackets 3 are fixed to the upper and lower parts of the sides of the pillars 1 fixed at intervals, respectively. ,
An upper female bracket 5 and a lower female bracket 6 each having a downwardly opening groove shape are fixed to the upper and lower portions of both ends of the fence body 4, and the upper female bracket 5 is fitted into the upper male bracket 2 from above and bolts 7 are attached.
In the safety fence in which the lower female bracket 6 is fitted from above to the lower male bracket 3 and connected by bolts 7, one side plate 8 of the upper female bracket 5 and the lower female bracket 6 is connected to the other side plate 9. The safety fence is characterized by protruding downward from the lower edge of the fence.

〔Example〕

Next, this invention will be explained in detail using illustrated examples.

5 and 6 show a fence body 4 with a female bracket used in the first embodiment of this invention, in which vertical rods 10 at both ends of the metal fence body 4 are provided with downwardly opening grooves, respectively. A metal upper female bracket 5 and a metal lower female bracket 6, which are large and have bolt insertion holes 11, are arranged at intervals in the vertical direction on the same vertical plane and fixed by welding. One of the front and rear sides of the bracket 5 and the lower female bracket 6, for example, the front side plate 8 (on the front surface side of the fence) protrudes below the lower end edge of the other side plate 9.

FIG. 7 shows a state in which a plurality of columns 1 with male brackets are arranged at intervals and fixed to the ground 12, and through-holes 11 for bolt insertion are formed in the side surfaces of the vertical metal columns 1. An upper male bracket 2 and a lower male bracket 3 made of vertical metal plates are arranged on the same vertical plane at intervals in the vertical direction and fixed by welding, and the pillars 1 are arranged at intervals. At the same time, the lower part of the support column 1 is embedded and fixed in a concrete foundation 13 provided in the ground 12. The distance L1 between the upper edge of the upper male bracket 2 and the upper edge of the lower male bracket 3 is the distance L1 between the lower edge of the short side plate 9 of the upper female bracket 5 and the lower edge of the short side plate 9 of the lower female bracket 6. The distance L2 is set approximately equal to the distance L2.

When attaching the fence 4 to the pillars 1 on both sides fixed to the ground 12, a worker lifts the fence 4 and first attaches it to both ends of the fence 4 as shown in FIGS. 1 and 2. Fixed upper female bracket 5
and one side plate 8 in the lower female bracket 6
The downward protruding portions of the brackets are pressed against the upper side surfaces of each upper male bracket 2 and each lower bracket 3 to bring them into surface contact. In this way, the horizontal alignment of the four female brackets and the four male brackets is automatically performed.

Next, each upper female bracket 5 and each lower female bracket 6 are fitted into each upper male bracket 2 and each lower male bracket 3, and then, as shown in FIGS. 3 and 4, the upper female bracket 5 is fitted. and the upper male bracket 2, the lower female bracket 6, and the lower male bracket 3, respectively, with the bolt 7 inserted through the bolt insertion hole 11.
Combine by.

8 to 10 show a second embodiment of this invention, in which shorter side plates of an upper female bracket 5 and a lower female bracket 6 are fixed to the upper and lower parts of both ends of the fence body 4. The lower edge of the bracket 9 is located between the upper end of the bolt insertion hole 11 provided in the longer side plate 8 and the bottom of the groove of the female bracket. This is the same as in the embodiment.

[Effect of idea]

According to this invention, one of the side plates 8 of the upper female bracket 5 and the lower female bracket 6 fixed to the upper and lower parts of both ends of the fence body 4 protrudes below the lower edge of the other side plate 9. , the downward protruding portions of the side plates 8 of the upper female bracket 5 and the lower female bracket 6 are connected to the upper male bracket 2.
By simply pressing the bracket against the upper side of the lower male bracket 3, the groove of the upper female bracket 5 will automatically face the upper part of the upper male bracket 2, and the groove of the lower female bracket 6 will automatically align with the upper part of the lower male bracket 3. can be placed to face each other,
Therefore, simply connect the downwardly protruding portions of one side plate 8 of the upper female bracket 5 and lower female bracket 6 fixed to both ends of the fence body 4 to the side surfaces of the upper male bracket 2 and lower male bracket 3 fixed to the pillars 1 on both sides. By performing a simple operation of moving the fence body 4 downward while pressing against the fence body 4, the four female brackets fixed to the fence body 4 can be moved to the four male brackets fixed to the pillars 1 on both sides. One worker can easily and quickly drop and fit the four female brackets onto the four male brackets by holding the fence, which reduces the number of workers. It is possible to obtain effects such as being economical.

[Brief explanation of drawings]

Figures 1 to 7 show the first embodiment of this invention, and Figure 1 shows the downward protruding portion of one side plate of the female bracket fixed to the end of the fence body fixed to the support. 2 is a cross-sectional view taken along the line A-A in FIG. Fig. 4 is a front view showing the state in which they are connected by B- in Fig. 3.
5 is a front view of the fence body with female brackets, FIG. 6 is an enlarged side view thereof, and FIG. 7 is a longitudinal sectional front view showing posts with male brackets fixed to the ground at intervals. be. FIGS. 8 to 10 show a second embodiment of this invention, and FIG.
The figure is a front view showing each female bracket fitted to each male bracket and connected with bolts, Figure 9 is a sectional view taken along the line C-C in Figure 8, and Figure 10 is fixed to the end of the fence body. FIG. 3 is a longitudinal sectional side view showing a state in which the downward protruding portion of one side plate of the female bracket is brought into contact with the upper side surface of the male bracket fixed to the support column. In the figure, 1 is a column, 2 is an upper male bracket, 3 is a lower male bracket, 4 is a fence body, 5 is an upper female bracket, 6 is a lower female bracket, 7 is a bolt, 8 and 9 are side plates, and 10 is a vertical rod. , 11 are through holes for bolt insertion.

Claims (1)

[Scope of utility model registration request] Vertical upper male brackets 2 are attached to the upper and lower sides of the column 1 fixed at intervals, respectively.
An upper female bracket 5 and a lower female bracket 6 each having a downwardly opening groove shape are fixed to the upper and lower parts of both ends of the fence body 4, respectively. In a safety fence in which the lower female bracket 6 is fitted from above to the lower male bracket 3 and connected by the bolt 7, one of the upper female bracket 5 and the lower female bracket 6 A safety fence characterized in that a side plate 8 projects further downward than the lower edge of the other side plate 9.