JP3399489B2 - Beam mounting structure of protective fence - Google Patents

Description

Description: 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. 2. Description of the Related Art In order to mount a beam on a column in a conventional protective fence, for example, as shown in FIG. 5, an end of a beam c is inserted into a mounting hole b formed in a side surface of a column a, and the beam is inserted. The inserted end of the beam c was fixed in the column a by being locked by the stopper pin d. 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 can also cope with mounting the beam c with an angle change in the vertical and horizontal directions. It has a slightly larger diameter. [0003] However, the beam mounting structure of 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 support column, and the mounting hole has not been subjected to any processing, the edge of the mounting hole appears in appearance and is generated between the mounting hole and the beam end. The gap is unsightly, and particularly when the beam is mounted with a change in the angle, the gap is conspicuous and is not preferable in appearance. Also, it is considered dangerous for a child to insert his finger into the gap or to cut his hand at the edge of the mounting hole. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, to improve the appearance of the mounting structure between a support and a beam, and to provide a danger-free beam mounting structure for a protective fence. [0005] In order to achieve the above object, the present invention has the following arrangement. That is, the beam mounting structure of the protective fence according to the present invention is such that a fixing member is fitted from the inside of the column to the outer peripheral surface of the tubular portion of the bracket inserted into the mounting hole provided on the side surface of the tubular column, and the bracket is attached to the side surface of the column. The beam end is inserted into the cylindrical portion of the bracket, and the outer peripheral surface of the inserted beam end is brought into contact with a projection formed on the inner surface of the cylindrical portion, and the beam is mounted on the support, and the bracket is mounted . Cylindrical part and the outer peripheral surface of this cylindrical part
The elastic part of the fixing member fitted to the
Cut as needed to form slits at appropriate intervals
It is characterized by having been done. According to the present invention, since the bracket is mounted on the mounting hole of the column and the beam end is mounted on the column via the bracket, the edge of the column mounting hole appears directly on the appearance. There is no need to cut your hand at the edge of the mounting hole for the pillar. Also, a projection is formed on the inner surface of the tubular portion of the bracket through which the beam end is inserted, and the outer peripheral surface of the inserted beam end is brought into contact only with the projection, so that the beam end can be easily inserted. At the same time, it is possible to cope with the case where the beam is mounted with an angle change in the vertical and horizontal directions, and the gap between the inner surface of the cylindrical portion and the end of the beam is less noticeable due to the presence of the projection. An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the embodiment of FIG. 1, FIG. 3 (1) is a plan view of a bracket used in FIG. FIG. 4A is a plan view of the fixing member used in FIG.
(2) is a partially cut-away side view, in which:
1 is a support, 2 is a beam, 3 is a bracket, and 4 is a fixing member. The column 1 is erected on the ground cover at appropriate intervals, and the beam 2 is mounted between adjacent columns 1. In this embodiment, a mounting hole 11 is formed in the side surface. It is formed of a tubular body having a substantially rectangular cross section, and a cap 12 is fitted on the upper part. The strut 1 is generally made of a steel pipe or an aluminum pipe, or the outer circumference of which is coated or coated with a synthetic resin. The beam 2 is made of a pipe having a substantially circular cross section, and is made of a steel pipe, an aluminum pipe, or the like whose outer periphery is coated or coated with a synthetic resin, as in the case of the column 1. Note that a vertical rail or a panel may be appropriately mounted between the beams 2 mounted vertically. The bracket 3 is provided with a mounting hole 11 for the column 1.
Part 31 which can be inserted through the end of beam 2
And a flange portion 32 formed at the base end of the cylindrical portion 31 and abutting on the side surface of the column 1, and is generally made of a synthetic resin such as polycarbonate or a metal such as an aluminum alloy. Things. The fixing member 4 is fitted to the outer peripheral surface of the cylindrical portion 31 of the bracket 3 inserted into the mounting hole 11 of the column 1, and is for attaching the bracket 3 to the side surface of the column 1. An annular portion 41 fitted on the outer peripheral surface of the shape portion 31 and a flange portion 42 abutting on the inner surface of the column 1 and formed at the tip of the annular portion 41 are provided. Like the bracket 3, a synthetic resin such as polycarbonate is generally used. It is made of a metal such as an aluminum alloy. The fixing member 4 is connected to the cylindrical portion 3 of the bracket 3.
In this embodiment, the fixing member 4
The inner peripheral surface of the annular portion 41 is formed with a tapered surface 43 that expands in depth, and the outer peripheral surface of the cylindrical portion 31 is formed with the tapered surface 4.
An inverted tapered surface 33 is formed corresponding to 3, and the cylindrical portion 31 and the annular portion 41 are notched at appropriate intervals so as to be elastically deformable, and slits 34 and 44 are formed. . When the annular portion 41 of the fixing member 4 is pressed against the outer peripheral surface of the tubular portion 31 of the bracket 3 from inside the support column 1, the tubular portion 31 and the annular portion 41 are elastically deformed by the slits 34 and 44, respectively, and the annular The tapered surface 43 on the inner peripheral surface of the portion 41 and the reverse tapered surface 33 on the outer peripheral surface of the cylindrical portion 31
Are engaged, and the fixing member 4 is fitted to the outer peripheral surface of the tubular portion 31. The fixing member 4 is attached to the outer peripheral surface of the cylindrical portion 31 of the bracket 3.
Is fitted, the distance between the inner surface of the flange 32 of the bracket 3 and the outer surface of the flange 42 of the fixing member 4 is made slightly smaller than the thickness of the column 1, and the cross section of the flange 32 of the bracket 3 is on the column 1 side. It is preferable that the bracket 3 is firmly attached to the side surface of the support column 1 by its elastic force, so that the bracket 3 can be elastically deformed. The inner diameter of the cylindrical portion 31 of the bracket 3 attached to the side surface of the column 1 is slightly larger than the outer shape of the end of the beam 2 and the projection 3 is formed on the inner surface of the cylindrical portion 31.
5 are formed at four locations facing each other in the circumferential direction. The height of the projection 35 is substantially equal to the height at which the end of the beam 2 is inserted. When the end of the beam 2 is inserted into the bracket 3, the outer peripheral surface of the inserted end of the beam 2 becomes the projection 35.
It is made to be in contact with. The protrusion 35 may be formed in a ring shape. Reference numeral 5 denotes a stop pin for preventing the beam 2 inserted into the bracket 3 from falling off.
The stop pin 5 is made of a wire having an inverted L-shape bent and inserted into a through hole 21 formed at the end of the beam 2 and locked. In the above embodiment, the beam 2 is mounted on the column 1 having a substantially rectangular tubular body. However, when the beam 2 is mounted on the column 1 having a circular tubular body, the above-mentioned bracket is used. 3 flange 32 and fixing member 4 flange 4
2 are curved so as to follow the cross section of the column 1, so that the flange portions 32 and 42 abut on the side surface and the inner surface of the column 1, respectively. As described above in detail, according to the present invention, since the beam end is mounted on the support via the bracket mounted on the mounting hole, the edge of the support mounting hole has an external appearance. The appearance does not appear directly, and the hand does not cut off at the edge of the support hole. Further, the bracket can be easily attached to the side surface of the column by simply fitting the fixing member from the inside of the column to the outer peripheral surface of the cylindrical portion of the bracket, so that the workability is good and even if the bracket is damaged, it is easy. Can be replaced with Furthermore, a projection is formed on the inner surface of the cylindrical portion of the bracket through which the beam end is inserted, and the outer end surface of the beam end is in contact with the projection, so that the beam end is easily inserted. It can also cope with beam mounting with angle changes in the vertical and horizontal directions, and it is also aesthetically pleasing because the gap between the inner surface of the cylindrical part and the end of the beam is less noticeable due to the presence of projections It is.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of a beam mounting structure for a protective fence according to the present invention. FIG. 2 is a sectional view of the embodiment of FIG. 3 (1) is a plan view of the bracket used in FIG. 1, and FIG. 3 (2) is a partially cutaway side view thereof. FIG. 4 is a plan view of a fixing member used in FIG. 1;
(2) is a partially cutaway side view thereof. FIG. 5 is a cross-sectional view showing a conventional protection fence beam mounting structure. [Description of Signs] 1 Support 11 Mounting hole 2 Beam 3 Bracket 31 Cylindrical part 32 Flange 35 Projection 4 Fixing member 41 Annular part 42 Flange 5 Stop pin

Claims (1)

(1) A fixing member is fitted to the outer peripheral surface of the cylindrical portion of the bracket inserted through the mounting hole provided on the side surface of the tubular support from the inside of the support, and the bracket is attached to the side surface of the support. The beam end is inserted into the cylindrical portion of the bracket, and the outer peripheral surface of the inserted beam end is brought into contact with a projection formed on the inner surface of the cylindrical portion, and the beam is mounted on the support , Bracket
And a fixing member fitted to the outer peripheral surface of the cylindrical portion
Between the ring portions so that they can be elastically deformed.
A beam mounting structure for a protective fence, wherein a slit is formed by being cut out at a distance .