JP2008031726A - Crosspiece supporting implement of guard fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crosspiece supporting implement of a guard fence which is excellent in workability because a fastening operation can be performed by means of one fastening tool. <P>SOLUTION: At least two locking portions 37 which abut on the side surface of a head of a polygonal bolt or the side surface of a polygonal nut for fixing the crosspiece supporting implement 3 to a support 1 via a bolt hole 32 so as to inhibit the turning of the polygonal bolt or the polygonal nut are protrusively formed on the inner surface-side periphery of the bolt hole 32 which is formed at a mounting portion 31 abutting on the support 1 of the crosspiece supporting implement 3. The locking portions 37 enable the polygonal nut to be fastened in a state of inhibiting the turning of the polygonal nut, or enable the polygonal bolt to be fastened in a state of inhibiting the turning of the polygonal nut. Thus, when the polygonal bolt is fastened in a state of making the side surface of the polygonal nut abut on the locking portion 37 in a state that the polygonal nut is arranged between at least the two locking portions 37 protrusively formed on the side of the inner surface of the mounting portion 31, the turning of the polygonal nut is inhibited so that the support 1 and the crosspiece supporting implement 3 can be efficiently fixed to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a horizontal rail support for a protective fence, which is used on pedestrian road boundaries, road boundaries, and the like and is mainly installed on roads and bridges.

  Conventionally, the invention related to the horizontal rail support of the protective fence has been made in various ways. For example, Patent Document 1 discloses a horizontal rail mounting bracket including a cylindrical holding member and a bracket, and the holding member has a horizontal portion at the center. And a tool insertion hole penetrating at right angles to the longitudinal direction, and having a bolt insertion hole at the bottom of the center and / or the bottom of both ends in the longitudinal direction, and the bracket has a through hole through which the column fixing bolt is passed. What has been disclosed.

JP 2005-264542 A

  However, in the horizontal rail mounting bracket of the protective fence as described above, when the horizontal rail mounting bracket is fixed to the column, the bolt and the nut are tightened with a tightening tool. Since both nuts are held with a tightening tool and one of them is rotated and tightened, it is necessary to grip and operate the tightening tool with both hands, and it is said that workability is not always excellent. I could not say it.

  Accordingly, the present invention solves the above-described problems, and is intended to provide a horizontal rail support for a protective fence that can be tightened with a single tightening tool and has excellent workability. .

In order to achieve the above object, the present invention is configured as follows.
That is, the horizontal rail support of the protection fence according to the present invention is a horizontal rail support that supports the horizontal rail by being fixed to the column of the protective fence in which a horizontal beam made of a long tubular body is installed between the columns. A side face of the head of a polygonal bolt that fixes the horizontal beam support to the column via the bolt hole around the inner surface side of the bolt hole drilled in the mounting portion that contacts the column of the horizontal beam support; At least two locking portions that contact the side surface of the polygonal nut and prevent rotation of the polygonal bolt or the polygonal nut are protruded, and the rotation of the polygonal bolt is blocked by the locking portion. It was made possible to fix the horizontal beam support to the column by tightening the polygon nut in the state, or by tightening the polygon bolt while preventing the rotation of the polygon nut. It is a feature.

  According to the present invention, the head of the polygon bolt that fixes the horizontal beam support to the column via the bolt hole around the inner surface side of the bolt hole drilled in the mounting portion that contacts the column of the horizontal beam support At least two locking portions that contact the side surface or the side surface of the polygonal nut and prevent the rotation of the polygonal bolt or the polygonal nut project, and the polygonal bolt is rotated by the locking portion. Since the polygonal nut can be tightened in the blocked state or the polygonal bolt can be tightened in the state where the rotation of the polygonal nut is blocked, the polygonal bolt can be tightened with a tightening tool, for example. When tightening, if a polygonal nut is placed between at least two locking parts projecting on the inner surface side of the mounting part and the side face abuts the locking part and the polygonal bolt is tightened, Just hold the square nut lightly with your fingers, Rotation of the Shape nut is prevented, since it is possible to efficiently fix the strut and the rung support, improving the construction efficiency.

Embodiments according to the present invention will be specifically described below with reference to the drawings.
That is, FIG. 1 shows one embodiment of a horizontal rail support for a protective fence according to the present invention, (A) is a front view, (B) is a side view, (C) is a plan view, and (D) is a rear view. FIG. 2, FIG. 2 is an exploded perspective view of an enlarged main part of the guard fence formed using the guard fence support tool shown in FIG. 1, and FIG. 3 shows another embodiment of the guard rail horizontal rail support tool according to the present invention. (B) is a plan view, (d) is a rear view, and FIG. 4 is still another embodiment of a horizontal rail support for a protective fence according to the present invention. (A) is a front view, (B) is a side view, (C) is a plan view, and (D) is a rear view.

  A protective fence installed on a road or the like is a structure in which a long horizontal beam 2 is attached with a space in parallel between vertical columns 2 between columns 1 erected at intervals (however, in FIG. The main part is enlarged and shown). The strut 1 is the same as that used in the conventional protective fence, and is generally formed from a circular steel pipe whose outer surface is coated with a paint or synthetic resin. A horizontal beam 2 is attached via a metal horizontal beam support 3 attached to the side surface. The horizontal rail 2 is also the same as that used in the conventional protective fence, and is generally formed of a long circular steel pipe whose outer surface is coated with paint or synthetic resin.

  The horizontal beam support 3 is formed by bending a plate material into a substantially horseshoe shape in a side view, and is provided with an attachment portion 31 that comes into contact with the side surface of the column 1, and a horizontally long bolt hole 32 is formed near the center thereof. The hexagonal bolt B is inserted and screwed into the bolt hole 32 from the column 1 side, and the horizontal beam support 3 is fixed to the column 1. Further, an upper support portion 33 whose front end is curved downward is extended from the upper end of the attachment portion 31, and a lower support portion 34 whose front end is curved upward is opposed to the lower end of the attachment portion 31. Extending forward, the upper support portion 33 and the lower support portion 34 are provided with oblong holes 35 and 36 for fixing the inner sleeve 4 by inserting bolts B1 in the vertical direction.

  In FIG. 1, one circular dome-shaped locking portion 37 that prevents the rotation of the hexagon nut N is provided on the inner surface side above and below the bolt hole 32 of the mounting portion 31. When the horizontal beam support 3 is screwed and fixed to the column 1 using the hexagon bolt B and the hexagon nut N, the hexagon nut N is arranged on the inner surface side of the bolt hole 32 of the mounting portion 31 and the hexagon nut N If the hexagon bolt B through which the bolt hole 32 is inserted from the side surface of the support 1 is screwed into the hexagon nut N while supporting the side surface of the column with the fingers so as to be locked by the upper and lower locking portions 37, The locking portion 37 prevents the hexagon nut N from rotating, and the hexagon bolt B and the hexagon nut N can be efficiently fastened.

  As shown in FIG. 3, two circular domed locking portions 37 may be formed on the top and bottom of the horizontally long bolt hole 32, respectively. Also, as shown in FIG. A horizontally long dome-shaped locking portion 37 may be formed one above and below each of the bolt holes 32. In short, when the hexagonal bolt N that supports the hexagonal nut N between the locking portions 37 with fingers and inserts the bolt hole 32 from the side surface of the support column 1 is screwed into the hexagonal nut N, It is only necessary that the side surface of the hex nut N abuts and the rotation of the hex nut N is prevented. Needless to say, the hexagon bolt B and the hexagon nut N may be used in reverse to allow the side surface of the head of the hexagon bolt B to abut against the locking portion 37.

  Further, as a method of forming the locking portion 37 in the mounting portion 31 of the horizontal beam support 3, it may be formed by welding a curved circular dome-shaped member to the inner surface of the mounting portion 31. In consideration of the finish, the recess 38 is formed on the outer surface of the mounting portion 31, but it is preferable to press the outer surface of the mounting portion 31 so that the locking portion 37 protrudes from the inner surface.

  Furthermore, although the latching | locking part 37 in the said form is all formed up and down, you may form in right and left. However, when the shape of the mounting portion 31 of the horizontal beam support 3 is curved so as to be along the side surface of the column with respect to the column having a circular cross section, it is curved when the locking portion 37 is formed on the left and right. Since it is necessary to increase the height of the locking portion 37 by the amount, it is preferable to form it vertically. If formed vertically, there is an advantage that the hexagon nut N or the hexagon bolt B locked to the lower locking portion 37 can be supported even slightly. Moreover, you may form diagonally.

  Furthermore, the locking portions 37 in the above form are integrally formed on the inner surface of the attachment portion 31, but protrude downward from the inner surface of the upper support portion 33 or from the inner surface of the lower support portion 34. It may be formed so as to protrude upward. In this way, the polygonal bolt head is also formed around the inner surface side of the bolt hole 32 formed in the attachment portion 31 by the engaging portion 37 formed around the inner surface side of the bolt hole 32 formed in the attachment portion 31. The polygonal bolt or the polygonal nut can be prevented from rotating by abutting the side surface of the part or the polygonal nut.

  Then, the inner sleeve 4 having a substantially circular cross section is inserted between the upper support portion 33 and the lower support portion 34 of the horizontal beam support 3 fixed to the column 1 from the horizontal direction, and the bolt B1 is inserted into the horizontally long hole 35 from above. The inner sleeve 4 is inserted into the inner sleeve through hole 41 and the laterally long hole 36, and a nut N <b> 1 is screwed from below, so that the inner sleeve 4 is fixed to the column 1 via the lateral rail support 3. Then, the ends of the horizontal rails 2 and 2 are extrapolated on both sides of the inner sleeve 4, and two bolts B2 and nuts N2 are inserted and screwed in the vertical direction, and the horizontal rails 2 and 2 are supported by the horizontal rails. It is fixed to the column 1 via the tool 3.

  The horizontal rail support of the protective fence according to the present invention is fixed to the column through the bolt hole around the inner surface of the bolt hole drilled in the mounting portion that contacts the column of the horizontal beam support. A polygonal bolt head side surface or a side surface of the polygonal nut, and at least two locking parts that prevent rotation of the polygonal bolt or polygonal nut are provided to protrude by the locking part. The polygonal nut can be fastened while the polygonal bolt is prevented from rotating, or the polygonal bolt can be fastened while the polygonal nut is prevented from rotating. When tightening a polygonal bolt with a tool, a polygonal nut is placed between the locking parts protruding at least two on the inner surface side of the mounting part, and the side faces the locking part to make the polygonal When tightening the bolt, lightly support the polygonal nut with your fingers Only previously, the rotation of the polygon nut is prevented, as rungs support the guard fence which can be efficiently fixed between posts and rungs support, can be suitably used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view, (B) is a side view, (C) is a plan view, and (D) is a rear view. It is a disassembled perspective view of the principal part expansion of the guard fence formed using the support tool of the guard fence shown in FIG. The other embodiment of the horizontal rail support tool of the protection fence which concerns on this invention is shown, (A) is a front view, (B) is a side view, (C) is a top view, (D) is a rear view. The further embodiment of the horizontal rail support tool of the protection fence which concerns on this invention is shown, (A) is a front view, (B) is a side view, (C) is a top view, (D) is a rear view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Horizontal beam 3 Horizontal beam support 31 Attachment part 32 Bolt hole 37 Locking part 4 Inner sleeve

Claims (1)

  A horizontal beam support that supports a horizontal beam by being fixed to a column of a protective fence in which a horizontal beam made of a long tubular body is installed between the columns, and an attachment portion that contacts the column of the horizontal beam support The polygonal bolt or the side surface of the polygonal nut that fixes the horizontal beam supporter to the support through the bolthole, or the side surface of the polygonal nut, At least two locking portions for preventing the rotation of the polygonal nut are projected, and the polygonal nut is fastened in a state where the rotation of the polygonal bolt is blocked by the locking portion, or the polygonal nut A horizontal rail support for a protective fence, wherein the horizontal rail support can be fixed to a column by fastening a polygonal bolt in a state where rotation is prevented.