JPH0782716A - Protection fence, and joint therefor - Google Patents

Abstract

PURPOSE:To facilitate installation of protection fences on slopes at angles within a specified range by a method wherein joints for installation of beams between supports are made up, being classified into two groups of uphill joints and downhill joints. CONSTITUTION:An uphill joint 3A is composed of an uphill receiver 4, an uphill cover 5, and a lateral bolt 8 while a downhill joint 3B is composed of a downhill receiver 14, a downhill cover 15, and the lateral bolt 8. A plurality of supports 1 are planted vertically on a slope. An attachment plate 4B for the uphill receiver 4 of the uphill joint 3A is fastened with the lateral bolt 8 to the support 1 along a slope base line D, and an attachment plate 14B for the downhill receiver 14 of the downhill joint 3B is fastened likewise with the lateral bolt 8 to the downhill side of the support 1. Then, a beam 2 is installed between the uphill receiver 4 and the downhill receiver 14 with their ends fitted respectively into the uphill receiver 4 and the downhill receiver 14, and fastening is made with nuts 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guard fence such as a guard rail, a guard fence, a handrail, etc., which is constructed at the boundary between a roadway and a sidewalk, and its joint.

[0002]

2. Description of the Related Art A conventional protective fence is shown in FIGS.
As described above, the joint 53 is attached to the front side of the column 51 with the bolt 54, and the beam 52 is fastened to the joint 53 with the bolt 56.

[0003]

However, in the above structure, since the beam 52 is the front beam type in which the beam 52 projects from the front surface of the support column 51, there is a problem that the land area required for construction of the protective fence becomes large.

As another example, there is a center beam type in which a beam is located in the middle of a column, in which joints are welded to the left and right of the column, but in this case, welding work at a construction site is difficult. However, there is a problem that it is necessary to prepare a large number of columns with joints for sloped ground (in principle, columns are required for each inclination angle), although they are pre-welded at the factory.

According to the present invention, if the land area required for constructing the fence is small and the slope is 10 to 30 degrees in inclination angle, it is only necessary to prepare one type of supporting column and one type of joint for each of up and down. The aim is to provide a protective fence that can handle all of these and can be easily assembled.

It is another object of the present invention to provide a protective fence for horizontal ground (inclination angle of 10 degrees or less) by only preparing one type of support column and one joint, and which can be easily assembled.

[0007]

As shown in FIGS. 1-A to 1-F, a means for solving the problems according to the present invention is provided with a plurality of columns 1 vertically erected on a sloping ground, and between these columns 1. A cylindrical tube beam 2 having a diameter smaller than that of the support column 1 and extending substantially parallel to the sloped ground, and the beam 2 and the support column 1.
It is composed of an up joint 3A and a down joint 3B interposed between the two.

The ascending joint 3A has a center line C of the beam 2.
An inclined base line D connecting the upper and lower edges 4 of the ascending receiver 4 and the ascending lid 5.
a and 5a) and an up lid 5 which is located on the upper side with respect to the inclined base line D and has a lateral length shorter than that of the up receptacle 4, and an end portion of the beam 2. The upper lid 5 from the upper side and the upper receiver 4 from the lower side
Are simultaneously tightened, and a lateral bolt 8 is tightened to the screw hole 7 of the column 1 and the upright receiver 4 is tightened.

The down joint 3B is connected to the center line C of the beam 2.
The lower descending receiver 14 with respect to the inclined base line D, and the lowering lid 15 located above the inclined base line D and having a length in the left-right direction longer than the lowering receiver 14 and descending from the upper side to the end of the beam 2. It is composed of a nut 6 with which the lid 15 is simultaneously tightened from the lower side and a downward receiving member 14 and a lateral bolt 8 with which the downward receiving member 14 is fastened to the screw hole 17 of the pillar 1.

The ascending receiver 4 is a receiving cylinder 4A having an upper open semi-conical cylinder shape, a curved mounting plate 4B having an outer peripheral edge welded to the inner side of the base end thereof and extending along the outer periphery of the column 1, and the receiving cylinder. 4A
Of the nut seat portion 4C and the tightening hole 4D formed at the center thereof, the upper hole 4E formed on the mounting plate 4B so as to be located above the inclined base line D, and the same with respect to the inclined base line D. 4F formed so as to be located on the side
It consists of and.

The ascending lid 5 is composed of a lid cylinder 5A having a lower open semi-conical cylinder shape and a vertical bolt 5B welded to the inner side of the tip thereof.

The descending receiver 14 has an upper open semi-conical cylindrical receiving cylinder 14A and an outer peripheral edge welded to the inside of the base end thereof.
A curved mounting plate 14B along the outer periphery of the column 1, a nut seat portion 14C formed at the lower end of the receiving cylinder 14A and a tightening hole 14D at the center thereof, and the mounting plate 14B on the upper side with respect to the inclined base line D. Upper hole 14E formed to be positioned
And a prepared hole 14F formed so as to be located on the lower side with respect to the inclined base line D.

The descending lid 15 is a lid cylinder 15A having a lower open semi-conical cylinder shape, and a vertical bolt 15 welded to the inside of the front end portion thereof.
It is composed of B and.

[0014]

The procedure for assembling the protective fence in the means for solving the above problems will be described. First, a predetermined number of basic blocks are installed at predetermined intervals on a sloping ground, and then the columns 1 having screw holes 7 formed in advance are vertically planted in each basic block. In addition,
The positions of the screw holes 7 are common when the inclination angle Y is 10 to 30 degrees.

Next, the ascending joint 3A along the inclined base line D
The upper hole 4E or the lower hole 4F of the mounting plate 4B of the ascending receiver 4 is fastened to the column 1 with the lateral bolts 8, and the upper hole 14E or the lower hole 14F of the mounting plate 14B of the descending receiver 14 of the descending joint 3B is connected to the lateral bolt 8 Tighten it to column 1.

That is, when the inclination angle Y is 17 to 23 degrees, the ascending receiver 4 of the ascending joint 3A tightens the prepared hole 4F, and the descending receiver 14 of the descending joint 3B also tightens the prepared hole 14E.

Next, the beam 2 is passed between the ascending receivers 4 and the descending receivers 14, the ends thereof are fitted into the ascending receivers 4 and the descending receivers 14, and then the vertical holes 2a at the ends of the respective beams 2 are provided. Further, the vertical bolts 5B and 15B of the ascending lid 5 and the descending lid 15 are passed through the holes 4D and 14D of the receivers 4 and 14, respectively, and the nut 6 is fastened to the screw portion at the lower end thereof.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. In the first embodiment of FIGS. 1-A to 1-F, the protective fence is a plurality of pillars 1 vertically erected on a sloping ground,
A circular tubular beam 2 having a diameter smaller than that of the support column 1 and extending between the support columns 1 substantially in parallel to the sloped ground, and an up joint 3A interposed between the beam 2 and the support column 1.
(Located on the up side with respect to the column 1) and a down joint 3B (located on the down side with respect to the column 1).

The ascending joint 3A has a center line C of the beam 2.
An inclined base line D connecting the upper and lower edges 4 of the ascending receiver 4 and the ascending lid 5.
a and 5a) and an up lid 5 which is located on the upper side with respect to the inclined base line D and has a lateral length shorter than that of the up receptacle 4, and an end portion of the beam 2. The upper lid 5 from the upper side and the upper receiver 4 from the lower side
Nut 6 tightened at the same time, and a lateral bolt 8 that tightens the up receptacle 4 into the screw hole 7 of the pillar 1 (for example, a diameter of 10 m).
m) and.

The downstream joint 3B is connected to the center line C of the beam 2.
The lower descending receiver 14 with respect to the inclined base line D, and the lowering lid 15 located above the inclined base line D and having a length in the left-right direction longer than the lowering receiver 14 and descending from the upper side to the end of the beam 2. The nut 6 that simultaneously fastens the lid 15 and the descending receiver 14 from the lower side, and the screw hole 17 of the pillar 1.
(The screw hole 7 has a step in the vertical direction smaller than the radius of the supporting column) and a lateral bolt 8 to which a downward receiver 14 is fastened.

The ascending receiver 4 is a receiver cylinder 4A having an upper open semi-conical cylinder shape, a curved mounting plate 4B along the outer periphery of the column 1 whose outer peripheral edge is welded to the inside of the base end thereof, and the receiver cylinder. 4A
4C and a tightening hole 4D (for example, a long hole of 9 × 20 mm) formed at the center of the nut seat portion 4C, and a laterally long shape formed on the mounting plate 4B so as to be located above the inclined base line D. The shape-shaped hole 4E (for example, a long hole of 12 × 35 mm) and the laterally-shaped base hole 4F which are formed so as to be positioned below the inclined base line D are also formed.

The ascending lid 5 is composed of a lid cylinder 5A having a lower open semi-conical cylinder shape and a vertical bolt 5B (for example, diameter 8 mm) welded to the inside of the front end portion thereof.

The descending receiver 14 has an upper open semi-conical cylindrical receiving cylinder 14A and an outer peripheral edge welded to the inside of the base end thereof.
A curved mounting plate 14B along the outer periphery of the column 1, a nut seat portion 14C formed at the lower end of the receiving cylinder 14A and a tightening hole 14D at the center thereof, and the mounting plate 14B on the upper side with respect to the inclined base line D. Upper hole 14E formed to be positioned
And a prepared hole 14F formed so as to be located on the lower side with respect to the inclined base line D.

The descending lid 15 includes a lid cylinder 15A having a lower open semi-conical cylinder shape, and a vertical bolt 15B welded to the inside of the tip thereof.
It consists of and.

Next, the procedure for assembling the protective fence will be described. First,
A predetermined number of basic blocks are installed at predetermined intervals on a sloping ground, and then columns 1 having screw holes 7 formed in advance are vertically planted on each basic block. The positions of the screw holes 7 are common when the inclination angle Y is 10 to 30 degrees.

Next, the ascending joint 3A is arranged along the inclined base line D.
The upper hole 4E or the lower hole 4F of the mounting plate 4B of the ascending receiver 4 is fastened to the column 1 with the lateral bolts 8, and the upper hole 14E or the lower hole 14F of the mounting plate 14B of the descending receiver 14 of the descending joint 3B is connected to the lateral bolt 8 Tighten it to column 1.

That is, when the inclination angle Y is 10 to 17 degrees as in the second embodiment of FIG. 2, the mounting plate 4B of the ascending joint 3A tightens the upper hole 4E, and the descending receiver 14 of the descending joint 3B tightens the lower hole 14F. , The inclination angle Y is 1 as in the first embodiment of FIG. 1-A.
At 7 to 23 degrees, the ascending receiver 4 of the ascending joint 3A has a lower hole 4F.
Also, the down receptacle 14 of the down coupling 3B is also tightened with the pilot hole 14E, and the inclination angle Y is 23 to 30 as in the third embodiment of FIG.
Ascending, the ascending receiver 4 of the ascending joint 3A tightens the lower hole 4F, and the descending receiver 14 of the descending joint 3B tightens the upper hole 14E.

Next, the beam 2 is passed between the ascending receivers 4 and the descending receivers 14, the ends of the beams 2 are fitted into the ascending receivers 4 and the descending receivers 14, and then the vertical holes 2a at the ends of the beams 2 are inserted. Further, the vertical bolts 5B and 15B of the ascending lid 5 and the descending lid 15 are passed through the holes 4D and 14D of the receivers 4 and 14, respectively, and the nut 6 is fastened to the screw portion at the lower end thereof.

The upper and lower holes 4E, 4F of the receivers 4, 14 are
Beam 2 is made to have 14E and 14F horizontally rather than vertically
This is to prevent downward displacement when a downward external force is applied.

Further, in the first embodiment, the receivers 4, 14 and the lids 5, 15 are frustoconical with taper in the vertical and front-back directions, but as in the fourth embodiment of FIGS. 4A and 4B, When the column has a small diameter, it may be tapered only in the vertical direction. Moreover, in the first embodiment, the vertical bolt 5B,
15B is fixed to the cover cylinder 5a, but as in the fourth embodiment of FIG. 5, the vertical bolts 5B and 15B have a round head and a corner neck, so that they are separated from the cover cylinder 5a. The square necks of the bolts 5B and 15B may be inserted into and removed from the square holes at the tip of the lid cylinder so that they cannot rotate freely, and tightened with the nut 6.

Further, FIGS. 6, 7 and 8 show a fifth embodiment, which is a protective fence constructed on a horizontal ground (0 to 10 degrees), which is a plurality of vertically planted on the horizontal ground. Stanchion 21
And the circular tubular beam 2 horizontally extended between the columns 21 and
And a joint 23 interposed between the beam 2 and the column 21
It consists of

The joint 23 includes a lower receptacle 24 with respect to the center line C of the beam 2 and an upper lid 25 with respect to the center line C.
A nut 6 that simultaneously tightens a lid 25 from above and a receiver 24 from below at the end of the beam 2;
And a horizontal bolt 8 having a receiver 24 tightened in its screw hole.

The receiver 24 is a receiver cylinder 24A having an upper open semi-conical cylinder shape, a curved mounting plate 24B having an outer peripheral edge welded to the inner side of the base end thereof and extending along the outer periphery of the column 21, and the receiver cylinder 24A. It is composed of a tightening hole 24D formed in the lower part of the tip and a horizontally elongated center hole 24G formed in the mounting plate 24B so as to be located on the center line.

The lid 25 is a lid cylinder 2 having a lower open semi-conical cylinder shape.
5A and a vertical bolt 25B welded to the inside of the tip portion thereof. The other configurations and operations are
This is similar to the first embodiment.

Further, FIGS. 9, 10 and 11 show a sixth embodiment, which is a protective fence constructed on a horizontal ground (0 to 10 degrees). From the vertical support pillar 31 having an uneven surface, the cylindrical tube beam 32 having the uneven surface horizontally extending between the pillars 31, and the joint 33 interposed between the beam 32 and the pillar 31. Has become.

The joint 33 includes a lower receiving portion 34 with respect to the center line of the beam 32 and an upper lid 35 with respect to the center line.
A nut 6 which is fastened to the end of the beam 32 at the same time with a lid 35 from the upper side and a receiver 34 from the lower side;
The horizontal bolt 8 is formed by tightening the receiving member 34 in the screw hole of the first nut 37.

The receiver 34 has an upper open semi-cylindrical receiving cylinder 34A and a support column 3 whose outer peripheral edge is welded to the inside of the base end thereof.
1, the curved mounting plate 34B along the outer periphery of 1, and the receiving tube 3
4A includes a tightening hole 34D formed at the lower end and a horizontally elongated center hole 34G formed in the mounting plate 34B so as to be located on the beam center line.

The lid 35 is a lid cylinder 35 having a lower open semi-cylindrical shape.
It is composed of A and a vertical bolt 35B welded to the inside of the tip thereof. The rest of the configuration and operation are the same as in the first embodiment.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

[0040]

As is apparent from the above description, according to the present invention, the upper open semi-cylindrical receiving tube, the mounting plate having the outer peripheral edge fixed to the inner side of the base end thereof, and the front and lower portions of the receiving tube. A receiving hole formed by a tightening hole formed in the mounting plate, an upper hole formed above the mounting plate with respect to an inclined base line, and a lower hole formed also below the inclined base line. The use is made of a joint for sloped land.

Therefore, in the present invention, the fence is of the center beam type, and if the land area required for construction is small and the sloped ground is about 10 to 30 degrees in angle, then the pillar is a type having a pair of stepped screw holes. The number and joints can be handled by simply preparing one type for each of the ascending and descending parts, and the assembly work can be done easily.

Further, according to the present invention, an upper open semi-cylindrical receiving cylinder, a mounting plate whose outer peripheral edge is fixed to the inside of the base end thereof, a tightening hole formed at the lower end of the receiving cylinder, A horizontal ground joint having a receiver formed of a central hole formed in a mounting plate is used. Therefore, for a horizontal ground (inclination angle of 10 degrees or less), there is an excellent effect that the assembling work can be easily performed by preparing only one type of column and joint.

[Brief description of drawings]

FIG. 1A is a front view of a protective fence in the first embodiment of the present invention.

[Fig. 1-B] Side view of the receiver

[Fig. 1-C] Similarly, front view of the receiver

[Fig. 1-D] Similarly, a cross-sectional view of the receiver

[Fig. 1-E] Similarly, front view of the lid

[Fig. 1-F] Side view of the lid

FIG. 2 is a front view of the protective fence of the second embodiment.

FIG. 3 is a front view of the protective fence of the third embodiment.

FIG. 4-A is a side view of the receiver of the fourth embodiment.

[Fig. 4-B] Similarly, a cross-sectional view of the receiver.

[Figure 5] Similarly, a front view of the protective fence

FIG. 6 is a front view of the protective fence of the fifth embodiment.

FIG. 7 is an exploded perspective view of the same.

FIG. 8 is a side view of the receiver as well.

FIG. 9 is a front view of the protective fence of the sixth embodiment.

FIG. 10 is a vertical sectional front view of the joint portion.

FIG. 11 is a vertical sectional side view of the joint portion.

[Figure 12] Side view of a conventional protective fence

FIG. 13 is a front view of the same.

[Explanation of symbols]

 C beam center line D tilt base line 1 strut 2 beam 3A ascending joint 3B descending joint 4 ascending receiver 5 ascending lid 6 nuts 7, 17, 27, 37 screw hole 8 lateral bolt 14 descending receiver 15 descending lid 4A, 14A, 24A, 34A Receptacles 4B, 14B, 24B, 34B Mounting plates 4C, 14C, 24C, 34C Nut seats 4D, 14D, 24D, 34D Tightening holes 4E, 14E, 24E, 34D Upper holes 4F, 14F, 24F, 34F Lower holes 5A, 15A, 25A, 35A Lid cylinder 5B, 15B, 25B, 35B Vertical bolt 23,33 Joint 24,34 Receiver 25,35 Lid

Claims (4)

[Claims] 1. A plurality of pillars vertically erected on a sloping ground, a beam extending between the pillars substantially parallel to the sloping ground, and a beam interposed between these beams and the pillar. It is composed of an up joint and a down joint, each joint includes a lower receiver with respect to an inclined base line connecting the center lines of beams, an upper lid with respect to the inclined base line, and a lid from the upper side to an end portion of the beam. It consists of a nut that simultaneously tightens the receiver from the lower side, and a lateral bolt that tightens the receiver in the screw hole of the strut, and the receiver has an upper open semi-cylindrical receiving cylinder and an outer peripheral edge inside the base end. A fixed mounting plate along the outer circumference of the column, a tightening hole formed in the lower end of the receiving cylinder, and an upper hole formed in the mounting plate so as to be located above the inclined base line, Formed to be on the lower side with respect to the inclined base line And a vertical bolt that is fixed to the inside of the tip of the lid tube or that is inserted into the tip of the lid tube. Characteristic protective fence. 2. A plurality of columns vertically planted on a horizontal ground,
It consists of a beam horizontally spanned between these columns, and a joint interposed between these beams and the columns, the joint being a lower receiver with respect to the centerline of the beam and an upper receiver with respect to the centerline. It is composed of a lid, a nut that simultaneously tightens the lid from the upper side to the end of the beam and a receiver from the lower side, and a lateral bolt that fastens the receiver to the screw hole of the column, and the receiver is an upper open half cylinder. -Shaped receiving tube, a mounting plate whose outer peripheral edge is fixed to the inside of the base end along the outer periphery of the column, a fastening hole formed in the lower end of the receiving tube, and the mounting plate on the center line. The cover is composed of a central hole formed so as to be located at a lower open semi-cylindrical lid cylinder, and a vertical bolt fixed to the inside of the tip of the lid cylinder or inserted into the tip of the lid cylinder. A protective fence characterized by being configured. 3. An upper open semi-cylindrical receiving cylinder, a mounting plate whose outer peripheral edge is fixed to the inside of the base end thereof, a tightening hole formed in the lower end of the receiving cylinder, and an inclination to the mounting plate. A joint for a sloping ground of a protective fence, which has a receiver composed of an upper hole formed so as to be located above the base line and a lower hole which is also formed so as to be located below the inclined base line. . 4. An upper open semi-cylindrical receiving cylinder, a mounting plate whose outer peripheral edge is fixed to the inside of the base end thereof, a tightening hole formed in the lower end of the receiving cylinder, and the mounting plate. A horizontal ground joint for a protective fence, characterized in that it has a receiver composed of a central hole formed therein.