JPH0439860Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a tiltable protective fence installed along the side of a bicycle path, promenade, or other road in a riverbed.

[Prior art]

When a bicycle path, promenade path, etc. is provided within a riverbed, and a protective fence is provided along the side of the road, a collapsible protective fence is used as the protective fence, which can be folded down when the water rises.

Conventionally, as a tilting type protective fence, for example,
- As announced in Publication No. 152333, the lower end of the upper support is pivotally attached to the upper end of the lower support that is embedded and fixed in the foundation, and the upper support is connected to the lower support with bolts in an upright state. , a structure in which the end of the fence body is connected to the upper support is known.

[Problem that the invention attempts to solve]

However, in the case of a foldable protective fence with this structure,
When lowering the fence body and upper support, it is necessary to remove the bolts, and when the fence body and upper support are to be erected and held in that position, it is necessary to tighten and connect the upper support and lower support with bolts. Therefore, switching between lying down and holding the bolt upright is complicated and takes a long time, and there is a risk that the bolt may be lost once it is removed. Furthermore, since the column is provided with a collapsible connecting portion, there are problems in that the structure of the column is complicated, its bending strength is weak, and its appearance is poor.

[Purpose of the invention, structure]

The purpose of this invention is to provide a collapsible protective fence that can advantageously solve the above-mentioned problems. A lower support fitting 3 having an elongated hole 2 is fixed, and an upper support fitting 5 having an upward opening groove 4 is fixed to the upper side surface of the support 1, and is provided at the lower end of the fence body 6. The support shaft 7 is fitted into the elongated hole 2 of the lower support fitting 3 so as to be able to rise and fall freely, and the locking member 8 attached to the upper part of the end of the fence body 6 is dropped into the upward opening groove 4 of the upper support fitting 5 from above. The folding type protective fence is characterized by being fitted together.

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

The drawing shows one embodiment of this invention, in which a steel column 1 whose lower end is embedded and fixed in a concrete foundation is provided with a long hole 2 extending in the vertical direction on the lower side of the exposed part. Both side plates of the lower support fitting 3 having a letter-shaped cross section are fixed by welding, and a rectangular female screw member 9 is fitted into the lower support fitting 3 so as to be movable up and down but not rotatable. A support plate 10 for preventing the female threaded member 9 from falling is provided in a continuous bent manner at the part, and when the female threaded member 9 is placed on the support plate 10,
The screw hole of the female screw member 9 is configured to face the lower part of the elongated hole 2.

Both side plates of an upper support fitting 5 having a U-shaped cross section and having an upward opening groove 4 extending in the vertical direction are fixed to the upper side surface of the column 1 by welding, and the upper support fitting 5 is attached above the lower support fitting 3. A bolt insertion hole 12 is provided in the lower part of the end vertical rod 11 of the metal fence body 6, and a pin having a bulged head at the tip is provided in the upper part of the end vertical rod 11. A metal locking member 8 consisting of is fixed by welding, and a support shaft 7 consisting of a bolt is sequentially inserted into the bolt insertion hole 12 of the end vertical rod 11 and the long hole 2 of the lower support fitting 3 to form a female threaded member. 9, and the locking member 8 is fitted into the upwardly opening groove 4 of the upper support metal fitting 5, so that the fence body 6 is held in an upright state as shown in FIGS. 1 to 3.

When the fence body 6 is to be lowered from the state shown in FIGS. 1 to 3, the fence body 6, the supporting shaft 7 attached thereto, the locking member 8, etc. are moved upward, and the locking member 8 is opened upward. After being removed from the groove 4, the fence body 6 may be rotated in one direction or the other around the support shaft 7.
In addition, when maintaining the fallen fence 6 in an upright state again, raise the fence 6 while standing up, place the locking member 8 above the upward opening groove 4, and then The attached lower support fitting 3 and locking member 8 may be lowered and the locking member 8 may be fitted into the upward opening groove 4 of the upper support fitting 5.

Although the above embodiment is an example in which the fence 6 is attached only to one side of the support 1, this invention can also be implemented when the fence 6 is attached to both sides of the support 1.

[Effect of idea]

According to this invention, by simply lifting the fence body 6 held in an upright state and then rotating it, the fence body 6 can be easily and quickly lowered. The simple operation of simply lifting the fence 6 while standing up, placing the locking member 8 above the upward opening groove 4 of the upper support fitting 5, and then lowering the fence 6 is performed. As a result, the fence body 6 can be easily and quickly held in the upright position, and since there is no need to provide a collapsible connection part to the support post 1, there is no reduction in the strength of the support support 1 or deterioration of its appearance. Effects such as this can be obtained.

[Brief explanation of drawings]

The drawings show one embodiment of this invention, in which Figure 1 is a front view of a tiltable protective fence, and Figure 2 is a lower support portion of the end of the fence body in the tiltable protective fence. 3 is a partially longitudinal front view showing the upper support part of the end of the fence body in the foldable protective fence; FIG. 4 is a sectional view taken along the line A-A in FIG. 2; The figure is a sectional view taken along the line B-B in Figure 2, and Figure 6 is the C line in Figure 3.
-C line sectional view, FIG. 7 is an exploded perspective view of the upper support part, and FIG. 8 is an exploded perspective view of the lower support part. In the figure, 1 is a column, 2 is a long hole, 3 is a lower support metal fitting, 4 is an upward opening groove, 5 is an upper support metal fitting,
6 is a fence body, 7 is a support shaft, 8 is a locking member, 9 is a female screw member, 10 is a support plate, and 11 is an end vertical rod.

Claims (1)

[Scope of utility model registration request] A lower support fitting 3 having a long hole 2 extending in the vertical direction is fixed to the lower side surface of the column 1, and an upper support fitting 5 having an upwardly opening groove 4 is fixed to the upper side surface of the column 1. A support shaft 7 provided at the lower part of the end of the fence 6 is fitted into the elongated hole 2 of the lower support fitting 3 so as to be able to rise and fall freely, and a locking member 8 attached to the upper part of the end of the fence 6 is inserted into the elongated hole 2 of the lower support fitting 3. A collapsible protective fence characterized by being fitted into an upwardly opening groove 4 of a support fitting 5 from above.