JPS602244Y2 - road protection fence - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a road protection fence.

Conventionally, as a road protection fence, for example, as shown in FIG. 6, a plurality of beams 2' are used between hollow supports 1', 1'.

2'... are extended, and both ends of each beam 2' are inserted into the insertion holes 11', 11' in the side walls of the columns 1', 1',
In the columns 1', 1', stopper pins 3', 3' are passed through holes 21', 21' at both ends of each beam 2' in the longitudinal direction of the columns 1', 1'.

However, such a road protection fence has stopper pin 3.
' is simply passed through the through hole 21' of the beam 2', so both ends of the beam 2' wobble within the insertion holes 11', 11' of the columns 1', 1', and the beam 2' ′ cannot be firmly fixed.

Therefore, it has the disadvantage that it is not necessarily sufficient in terms of strength and safety as a road protection fence.

In view of these conventional drawbacks, the present inventor has made extensive efforts to provide a road protection fence that eliminates the above-mentioned drawbacks.

The present invention will be explained below with reference to the drawings.

In the drawings, 1 is a support, 2 is a beam, and 3 is a stopper pin.

The support column 1 is a hollow elongated body made of metal, and its cross-sectional shape is not particularly limited, such as circular, square, oval, polygonal, etc.

A suitable number of insertion holes 11 into which the ends of the beams 2 are inserted are bored in the side wall of the support column 1.

Note that 12 is a cap at the upper end of the support column 1.

The beam 2 is an elongated body made of metal, and its cross-sectional shape is not particularly limited and may be circular, square, oval, polygonal, or the like.

Through holes 21, 21 are bored at both ends of the beam 2, respectively, into which stopper pins 3, 3 are inserted.

The through hole 21 is formed so that a pin body 31 and a protrusion 33 of a stopper pin 3 (described later) can pass therethrough, and when the stopper pin 3 is rotated or moved within the hole, the protrusion 33 is inserted into the hole of the through hole 21. The shape is not particularly limited as long as it can be secured to the edge.

The shape of the through hole 21 is, for example, as shown in FIG. 5, and the stopper pin 3 is rotated or moved within the hole in the direction of the arrow, so that the protrusion 33 is locked to the edge of the through hole 21. There is.

The stopper pin 3 is made of a long metal body, and a tightening screw portion 32 is provided at the upper end of the pin body 31.
A protrusion 33 is provided at a predetermined location on the side wall of 1.

The cross-sectional shape of the pin body 31 is not particularly limited, such as circular, oval, polygonal, etc.

As shown in FIG. 3, the tightening screw portion 32 usually has an upper end portion of the pin body 31 bent, and a screw 34 is screwed into the upper end portion from above.

Further, as shown in FIG. 4, in the tightening screw portion 32, the upper end of the pin body 31 is screwed into a male thread 35 with a nut 36 through a washer 37.

A plurality of protrusions 33 may be provided protrudingly provided at predetermined intervals in the length direction of the pin body 31 depending on the number of beams 2 spanned between the supports 1 and 1.

Moreover, the protrusion 33 may be provided to protrude from only one side of the pin body 31, or may be provided to protrude from both sides.

As shown in Fig. 1, the road protection fence of the present invention has a plurality of posts 1, 1... planted on the ground at appropriate intervals.
A plurality of beams 2, 2... between each support column 1, 1, respectively.
The ends of each beam 2 are inserted into the insertion holes 11° 11 in the side walls of the columns 1, 1 as shown in FIG.
Insert the stopper pin 3 in the length direction of the column 1゜1 within the column 1.
, 3 are penetrated by through holes 21, 21 at both ends of each beam 2.

Further, the protrusion 33 of the stopper pin 3 passes through the through hole 21 of the beam 2 together with the pin body 31, and as shown in FIG. 2 is locked to the edge of the through hole 21 on the lower surface.

Furthermore, the tightening screw portion 32 of the stopper pin 3, for example, the screw 34 in the case of FIG. 3, and the nut 3 in the case of FIG.
6 is tightened so as to press against the upper surface of the uppermost beam 2, as shown in FIG. 2, and the pin body 31 is pulled up.

That is, by pulling up the pin body 31,
The protrusion 33 presses the end of the beam 2 against the upper edge of the insertion hole 11 of the column 1.

However, the end portion of the uppermost beam 2 is pressed against the lower end portion of the insertion hole 11 of the support column 1 by the tightening screw portion 32 of the stopper pin 3.

Note that the position where the tightening screw portion 32 presses the top surface of the beam 2 and the position where the protrusion 33 presses the bottom surface of the beam 2 are not necessarily the same as those shown in FIGS. 2 and 5.
It is not necessarily limited to what is shown in the figure, and it is sufficient to press the appropriate position.

As detailed above, in the road protection fence of the present invention, the protrusion of the stopper pin passes through the through hole of the beam and is locked to the edge of the through hole on the lower surface of the beam, and the tightening screw part of the stopper pin is attached to the uppermost hole. Since the pin body is pulled up by being tightened to press the upper surface of the beam, both ends of each beam are pressed into the insertion hole of the support column and fixed using the tightening screw part and protrusion of the stopper pin. be able to.

That is, each beam can be stably and firmly extended between the supports, and the strength and safety of the protective fence can be improved.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the road protection fence of the invention, Fig. 2 is a sectional view showing the main parts of the road protection fence of the invention, and Figs. A perspective view showing an example of a stopper pin in a road protection fence, FIGS. It is a partially cutaway front view showing an example. 1... Strut, 2... Beam, 3...
... Stopper pin, 11 ... Insertion hole, 12
... Cap, 21 ... Through hole, 31.
... Zen body, 32 ... Tightening screw part, 33
...Protrusion, 34...Screw, 35...
...Male thread, 36...Nut, 37...
...Washer.

Claims (1)

[Scope of utility model registration request] Multiple hollow supports erected at appropriate intervals 1.1.
... A plurality of beams 2, 2... are respectively extended between them, and both ends of each beam 2 are inserted into the insertion holes 11.11 in the side walls of the columns 1, 1. Inside the pillar 1,
Stopper pins 3, 3 are passed through holes 21, 21 at both ends of each beam 2 in the length direction of the beam 2, and the stopper pin 3 has a tightening screw portion 3 at the upper end of a long pin body 31.
2 is provided, and a protrusion 33 is provided at a predetermined location on the side wall.
A road protection fence in which the pin body 31 is pulled up by being tightened so as to press against the upper surface of the uppermost beam 2.