JP3383466B2 - Beam mounting structure of protective fence - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam mounting structure for a protective fence installed on a road or the like.

[0002]

2. Description of the Related Art To attach a beam to a pillar in a conventional protective fence, for example, as shown in FIG. 5, the end of the beam c is inserted into a mounting hole b formed in the side surface of the pillar a and the beam thus inserted is inserted. The end portion c is attached by being locked by the stop pin d in the column a. Further, the mounting hole b has an outer shape of the end portion of the beam c so that the end portion of the beam c can be easily inserted and also when the beam c is attached when the angle is changed in the vertical and horizontal directions. It has a slightly larger diameter.

[0003]

However, the beam mounting structure for the protective fence as described above has the following problems. That is, since the beam end is directly inserted into the mounting hole of the column, and the mounting hole is not treated at all, the edge of the mounting hole appears in the appearance and a gap is generated between the mounting hole and the beam end. Was unsightly, and particularly when the beam was attached with a change in the angle, the gap was conspicuous and was not preferable in appearance. In addition, it is considered dangerous for a child to thrust his finger into the gap or cut his hand at the edge of the mounting hole.

Therefore, the present invention solves the above problems, the beam can be easily attached to the supporting column, and even if the beam is attached with a change in the angle, the appearance is not spoiled and there is no danger. The purpose is to provide a beam mounting structure for the protective fence.

[0005]

In order to achieve the above object, the present invention has the following constitution. That is, in the beam mounting structure for the protective fence according to the present invention, the tubular body is inserted into the mounting hole provided on the side surface of the tubular support, and the tubular body is attached to the outer peripheral surface at the end of the mounting hole of the support. It is characterized by forming a retaining projection to be stopped and an inner peripheral surface having a narrow tapered surface, and inserting the beam end into this cylindrical body and attaching the beam to a column. Is.

The retaining projection formed on the outer peripheral surface of the cylindrical body has an outer diameter larger than that of the mounting hole of the column in advance, and the retaining projection is pressed into the mounting hole against its elastic force. The inner diameter of the tubular body may be smaller than the outer diameter of the beam at the inner part and larger than the outer diameter of the beam at the insertion port, so that it can be inserted through the insertion hole. If the diameter of the inner part is expanded by the formed beam and the retaining protrusion on the outer peripheral surface is pressed against the edge of the mounting hole of the column, the tubular body is firmly mounted in the mounting hole of the column without rattling. Further, the outer peripheral surface of the beam is also pressed against the inner peripheral surface of the inner part without any clearance so that the beam is mounted without backlash, and rainwater or the like is prevented from entering between the beam and the cylindrical body.

[0007] In the above description, the outer diameter of the retaining projection of the tubular body may be larger than the inner diameter of the mounting hole of the supporting column, but it may be smaller than the inner diameter of the mounting hole of the supporting column in advance. , It becomes easier to insert the tubular body into the mounting hole of the column, and by just inserting the beam end into the inserted tubular body, the taper surface at the inner part of the tubular body is expanded to the mounting hole of the column. It is preferable because it can be firmly attached without play.

[0008]

According to the present invention, since the cylindrical member is attached to the mounting hole of the supporting column and the beam end portion is mounted to the supporting column through the cylindrical member, the edge of the supporting column mounting hole directly affects the appearance. The appearance is improved without appearing, and the hand is not cut at the edge of the column mounting hole. Also, since the tubular body has a retaining protrusion on the outer peripheral surface that is locked to the edge of the mounting hole of the column, it can be easily attached to the column simply by inserting it into the mounting hole of the column. You can Furthermore, since the inner peripheral surface of the tubular body is a narrow tapered surface, when the beam is easily inserted and the beam is mounted with the angle changed vertically and horizontally, the inner part of the tapered surface is With the fulcrum as a fulcrum, the angle can be easily changed to install.

[0009]

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention (1) is a front view, (2) is a plan view, and FIG. 2 is a sectional view of the embodiment of FIG.
FIG. 3 is an embodiment in which the beam is attached with an angle change in the vertical direction, and FIG. 4 (1) is a plan view of the fixture used in FIG.
(2) is a partially cutaway side view thereof, in which 1
Is a pillar, 2 is a tubular body, 3 is a beam, and 4 is a pin.

The column 1 is erected on the ground cover at appropriate intervals, has a mounting hole 11 on its side surface, and has a cap 12 fitted on its upper portion. The cross-sectional shape of the pillar 1 is not particularly limited to a circular shape, a rectangular shape, or the like, and the material thereof is not particularly limited. In this embodiment, the support 1
Is made of a pipe having a substantially rectangular cross section, and is made of a steel pipe, an aluminum pipe, or those whose outer periphery is coated or coated with a synthetic resin.

The cylindrical body 2 has a mounting hole 11 on the side surface of the support column 1.
As shown in FIG. 4, an insert portion 21 to be inserted into the mounting hole 11 of the column 1, and a collar formed at the end of the insert portion 21 and abutting on the side surface of the column 1. It has a cylindrical shape including the portion 22. Then, on the outer peripheral surface of the cylindrical body 3, that is, the outer peripheral surface of the insertion portion 21, a retaining member that is locked to the end edge of the mounting hole 11 of the pillar 1 so that the inserted cylindrical body 2 is not removed. A protrusion 23 is formed, and the inner peripheral surface is formed as a tapered surface 24 having a narrow depth.

The beam 3 is attached between the adjacent columns 1 by inserting the ends into the cylindrical body 2, and is made of a pipe having a substantially circular cross section. As with the column 1, a steel pipe, an aluminum pipe, or It is made of a material such as synthetic resin coated or coated on the outer periphery thereof. The beams 3 may be attached to the upper and lower sides, and vertical beams or panels may be appropriately attached between the beams 3.

Regarding the relationship between the outer diameter of the beam 3 and the inner diameter of the tubular body 2, in this embodiment, the inner diameter of the tubular body 2 is smaller than the outer diameter of the beam 3 at the inner portion, and the outer diameter of the beam 3 at the insertion port. The tapered surface 24 has a diameter larger than the diameter, the diameter of the inner portion is expanded by the inserted beam 3, and the retaining projection 23 on the outer peripheral surface is pressed against the edge of the mounting hole 11 of the support column 1. The material of the cylindrical body 2 is not particularly limited, but since the diameter of the inner part is expanded by the beam 3 inserted as described above, it is generally formed by molding an elastic material such as synthetic resin or rubber. Although it is preferable, when a metal or a hard synthetic resin is used, a vertical cutout groove may be formed in the cylindrical body so as to have elasticity.

Reference numeral 4 denotes a beam 3 which is inserted into the cylindrical body 2.
The stopper pin 4 is a stopper pin for preventing the stopper from falling out. The stopper pin 4 is made of a wire rod bent in an inverted L shape, and is inserted into a through hole 31 formed at the end of the beam 3 and locked. Has been done.

In the above-described embodiment, the beam 3 is attached to the support column 1 made of a pipe having a substantially rectangular cross section, but when the beam 3 is attached to the support column 1 made of a pipe having a circular cross section, the cylindrical body is used. It is preferable that the two collar portions 22 are curved along the cross section of the column 1 so that the collar portion 22 and the retaining projection 23 come into contact with the side surface and the inner surface of the column 1, respectively.

[0017]

As described above in detail, according to the present invention, since the beam end is attached to the column through the tubular body attached to the attachment hole, the edge of the column attachment hole directly affects the appearance. The appearance is improved without appearing, and no hands are cut at the edge of the column mounting hole.

The tubular body can be easily attached to the side surface of the column by simply inserting the retaining protrusion on the outer peripheral surface into the mounting hole formed in the column, so that the tubular body has good workability. Even if it is damaged, it can be easily replaced.

Furthermore, since the cylindrical inner peripheral surface through which the beam end is inserted is a tapered surface, the beam end can be easily inserted through the insertion port, and the angle can be changed vertically and horizontally. Accordingly, when mounting the beam, the angle of the beam can be changed with the inner part of the tapered surface as a fulcrum, so that it can be easily dealt with, and the gap between the inner surface of the tubular portion and the end of the beam is less noticeable due to the tapered surface 24 Therefore, it is also aesthetically pleasing.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a beam mounting structure for a protective fence according to the present invention, and FIG. 1 is a plan view thereof.

2 is a cross-sectional view of the embodiment of FIG.

FIG. 3 is an embodiment in which a beam is attached in a vertical direction with an angle change.

FIG. 4 (1) is a plan view of the fixture used in FIG.
(2) is a partially cutaway side view thereof.

FIG. 5 is a cross-sectional view showing a beam mounting structure for a conventional protective fence.

[Explanation of symbols]

1 prop 11 mounting holes 12 caps 2 tubular 21 Insert 22 Collar 23 Lock-out protrusion 24 Tapered surface 3 beams 31 through hole 4 stop pin

Claims (3)

(57) [Claims] 1. A tubular body is inserted into a mounting hole provided on a side surface of a tubular strut, and the tubular body is formed with a retaining protrusion on an outer peripheral surface thereof to be engaged with an end edge of the mounting hole of the strut. At the same time, the inner peripheral surface is made into a narrow tapered surface, and the beam end is inserted into this cylindrical body, and the beam is attached to the support pillar. 2. The inner diameter of the cylindrical body is smaller than the outer diameter of the beam at the inner portion and larger than the outer diameter of the beam at the insertion opening, and the inner portion is expanded by the inserted beam to form an outer peripheral surface. 2. The beam mounting structure for a protective fence according to claim 1, wherein the retaining projections are pressed against the ends of the mounting holes of the support columns. 3. The beam mounting structure for a protective fence according to claim 2, wherein an outer diameter of the retaining protrusion of the tubular body is smaller than an inner diameter of the mounting hole of the column in advance.