JPS5824971Y2 - Auxiliary beam for protective fence - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an auxiliary beam installed in a gap in a protective fence such as a guardrail.

Generally, when the distance between the guardrail and the ground is wide, it is often necessary to use the guardrail's support to install one or several beam tubes in the gap, but conventionally, this type of auxiliary beam was installed Due to the nature of the construction method, most of the work was done on-site, such as drilling holes in each of the pillars and beam tubes and bolting them together, or directly welding them together, resulting in a reduction in work efficiency. Furthermore, various problems were observed, such as the beam tube protruding from the front or back side of the support column.

In view of these circumstances, this proposal has a structure in which the support bands described below are fixed to each post of the protective fence, and the end of the beam tube can be screwed to one of the band surfaces, thereby improving the conventional method described above. This solves all the inconveniences of the product in one fell swoop.

Hereinafter, the configuration of the present invention will be further explained based on one embodiment shown in the drawings. 1 is a protective fence, and 2 is a pair of locking bands of a presser band 3 and an intermediate band 4 or terminal band 5, which will be described below. The support band 3 has a curved part 3a in the center that can be used as a corner support over half the circumference of the pillar 1' of the protective fence, and bolt holes 3c are provided on both sides of the curved part 3a.
, 3c are connected to each other, and the intermediate band 4 has a central curved portion 4a that is shallower than half the circumference of the support column 1', and both side edges thereof. Part 4
b, 4b are the bolt holes 3c, 3 of the presser band.
The locking portions 4d, 4 are provided with bolt holes 4c, 4c that communicate with the locking portions 4c, 4c, and have elongated holes 4e, 4e penetrating on both sides of the edge.
This is an extension of d.

Further, the terminal band 5 is used only for the pillars 1'' at both ends of the protective fence, and the locking portion 4d on one side of the intermediate band 4 is omitted.

In the figure, reference numeral 6 indicates a beam tube, 6' indicates a screw hole or bolt hole provided through both ends of the beam tube, and 7.8 indicates each locking bolt.

When constructing the proposed auxiliary beam according to the above structure, first fix the pair of support bands 2 to each post 1' of the protective fence with bolts 7, and then drill the holes 6' at both ends of the beam tube. It is screwed or bolted into the elongated hole 4e of the locking portion of each of the support bands.

According to the mounting structure of the proposed auxiliary beam, all the processing of each component can be done at the factory, so on-site work is limited to simply assembling the components and tightening bolts, etc., making construction extremely efficient. , the curved portions 4a of the intermediate and terminal bands are shallower than half the circumference of the struts 1', so the beam tube 6 attached to the locking portion 4d extends almost in line with the center line connecting the struts 1'. There is no such thing.

Furthermore, unlike conventional products in which the beam tube is directly bolted or welded to the protective fence post 1', the auxiliary beam of the present invention allows the beam tube 6 to be easily attached and detached and to be moved up and down. Even if there are some errors in the length of the pre-cut beam tube 6, the elongated holes 4e can sufficiently absorb them and cause no problems during construction, making this type of beam highly practical. It has value.

[Brief explanation of drawings]

FIG. 1 is a partially omitted plan view showing how the auxiliary beam of the present invention is used, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is an enlarged view of the support band. In the figure, 1...protective fence, 2...support band, 3...presser band, 4...intermediate band, 5...・Terminal band, 6...
beam tube.

Claims (1)

[Scope of utility model registration request] 1. Bolt holes that communicate with each other are provided on both side edges of each curved part of the support band, which consists of a presser band and a locking band that are clamped to the support column, and elongated holes are provided in the locking part extending from the locking band. An auxiliary beam for a protective fence, characterized in that a beam tube is connected to the elongated hole through a screw. 2. The auxiliary beam for a protective fence according to claim 1, wherein the locking band is an intermediate band with locking portions on both sides. 3. The auxiliary beam for a protective fence according to claim 1, wherein the locking band is a terminal band having a locking portion on one side.