JP3443231B2 - Support post opening structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column which is erected outdoors such as a road or a bridge, in which an opening is provided in a side wall of the column, and the opening is provided in the opening. The present invention relates to an opening structure of a column to which a lid is attached. 2. Description of the Related Art A conventional technique will be described with reference to the drawings. A is a column, and an opening B is provided on a side wall of the column A, and a cover C is attached to the opening B.
Female screws D near the upper and lower or left and right edges of the opening B
It is known that a screw hole is formed in the cover C, a screw E is inserted into the screw hole, and the cover C and the column A are screwed. [0003] However, in the above-described structure, the lid may be dropped when the lid is attached or detached, which may cause harm to humans on the ground, especially when working at high altitudes. There was a fear of having. Also, after the lid is removed, a place for placing the lid is required, which makes it difficult to work when the working space is narrow. Accordingly, the present invention has been made in view of the conventional drawbacks, and as a result of intensive studies, it is an object of the present invention to provide an opening structure of a pillar having good workability and excellent safety. According to the present invention, there is provided an opening structure of a support having a notch formed on a side of the support having a cutout formed on an upper edge thereof, and a screw hole formed near the upper edge. Lid and
A female screw is threaded, and is formed of a mounting bracket whose rotation in the column is restricted , and the lid and the mounting bracket are inserted through the notch.
Mounted in the bolt, the strut lid is opened only by the upper portion of the bolt is loosened with those attached sandwiched lid and mounting bracket, the lid is not separated from the support column, work opening the lid Tokifuta There is no need to store the lid separately, and there is no need to drop the lid when working at a high place. An embodiment of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a support, which is usually made of a metal pipe such as a steel pipe or an aluminum pipe. An opening 11 having a notch 12 formed at the upper edge is provided on the side surface of the support 1. Also, the opening 11
A female screw 13 is provided near the center of the lower edge. Reference numeral 2 denotes a lid, and a screw hole 21 is provided near the center of the upper edge, and a screw hole 22 is provided near the center of the lower edge.
And a pitch corresponding to the pitch of the female screw 13. The left and right edges of the lid 2 are bent at substantially right angles so that the inner dimensions thereof correspond to the outer dimensions of the column 1. The cover 2 covers the opening 11 of the column 1 and covers the side surface of the column 1. The cover 2 is drilled in a screw hole 22 and a female screw 13 in a lower part thereof, a screw hole 21 in an upper part thereof, the notch 12, and the mounting bracket 3. Female screw 31
The husband and wife bolts are inserted into and screwed to the columns. If a gasket 6 made of an elastic material is interposed between the support 1 and the lid 2 over the entire outer edge of the opening 11, it is preferable that water or the like hardly enters from the opening. Mounting bracket 4 is the outer dimension m is made and small size than the opening dimension k of the strut, and so as folding substantially at right angles the right and left end portions larger size than the diagonal dimension n sidewall inside dimension l of the strut It is bent and a female screw is provided at the center. In the present embodiment, the female screw 31 is formed by tapping the center of the mounting bracket 3, but a hole slightly larger than the screw outer diameter may be formed and a nut may be attached to form the female screw 31. The mounting bracket 3 does not rotate together with the bolt when the bolt is turned because the diagonal dimension n of the mounting bracket 3 is larger than the inner dimension 1 of the support side wall. Next, the opening and closing of the lid 2 will be described. Lid 2
When opening the lid, first loosen the bolt 42 at the lower part of the lid 2 and pull it out, then loosen the upper bolt 41, the lid 2 falls down by its own weight, and the bolt catches on the lower edge of the opening 11 and stops. . Since the upper bolt 41 is only loosened and the lid 2 can be opened, the lid 2 is not separated from the column 1, so that when the lid 2 is opened and work is not required, the lid 2 does not need to be stored separately, and when working at a high place. There is no need to worry about dropping the lid 2. It is preferable that the spring plate nut 7 or the E-ring is fitted to the end of the upper bolt 41 so that the bolt 41 does not fall off from the mounting bracket 3 when the bolt 41 is loosened. When the lid 2 is closed, the lid 2 is lifted and the upper bolt 41 is applied to the notch 12 formed at the upper edge of the opening 11, and this bolt 41 is screwed to the mounting bracket 3. The female screw 31 is inserted and fastened, the lid 2 is temporarily fixed, and the lower bolt 42 penetrates the screw hole 22 formed in the lid 2, and is inserted into the female screw 13 provided near the lower edge of the opening 11. The cover 2 is screwed into the support column 1. In the above embodiment, the column has a rectangular cross section. However, the cross section of the column is not limited to a square shape. Similarly, rotation of the mounting bracket can be prevented, and a similar effect can be obtained. [0008] As described above, the opening structure of the pillar according to the present invention has a pillar provided with a notch formed in the upper edge on the side and a screw hole provided near the upper edge. It consists of a perforated lid, a mounting screw into which a female screw is screwed , and rotation of which is restricted in the column, and the lid and the mounting bracket are mounted by bolts inserted through the cutouts. The support is sandwiched between the cover and the mounting bracket, and the cover is opened only by loosening the upper bolts, so the cover is not separated from the support, and it is necessary to store the cover separately when opening and working There is no need to worry about dropping the lid when working in high places.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an assembly view showing an example of an embodiment of a column opening structure of the present invention. FIG. 2 is an assembly diagram for explaining a case in which a lid is opened in the opening structure of a support column according to the present invention. FIG. 3 is an assembly view for explaining a case in which a lid is opened in the opening structure of the column according to the present invention. FIG. 4 is a sectional view taken along line AA of FIG. 2; FIG. 5 is a sectional view taken along line BB of FIG. 2; FIG. 6 is a sectional view taken along line CC of FIG. 2; FIG. 7 is an assembly view showing another example of the embodiment of the opening structure of the column of the present invention. 8 is a sectional view taken along the line DD of FIG. 7; FIG. 9 is an assembly view showing an example of a conventional column opening structure. [Description of Signs] 1 Support 11 Opening 12 Notch 13 Female screw 2 Lid 21 Screw hole 22 Screw hole 3 Mounting bracket 31 Female screw 41 Bolt 42 Bolt 5 Stopper 6 Gasket 7 Spring plate nut

Claims (1)

(57) [Claims 1] A support having an opening formed on a side surface with a cutout formed in an upper edge portion, and a lid having a screw hole formed in the vicinity of the upper edge portion. , Female screws are screwed in , restricting rotation inside the column
Consists has been mounting bracket, cover and mounting bracket lacks the cut
An opening structure for a column, wherein the column is attached with bolts inserted into the portion, and the column is attached between a lid and a mounting bracket.