JPH0667736U - Fence beam pipe mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] Connect the brackets to the columns vertically or horizontally at an arbitrary angle. Also, attach the bracket to the pole stably. [Structure] Spacer 3 fixed to support 11 with bolts 33
No. 0 has a cylindrical cross section and has an inward flange 32 having a circular opening 32c. The annular metal fitting 36 is inserted into the spacing member 30 by passing the four protrusions 36b on the outer circumference thereof through the passage grooves provided in the inward flange portion 32, and is engaged inside the inward flange portion 32 by turning 45 degrees. To meet. The spherical plate-shaped receiving fitting 37 is brought into contact with the annular fitting 36, and the mounting bolt 15 is passed through the elongated hole 15a. The bracket 13 connecting the beam pipes 12 has a bottomed cylindrical shape having a spherical bottom surface 13a. The bladed nut 17 is screwed into the threaded portion 15b of the mounting bolt 15 in the bracket 13. Rotate the bladed nut 17 to move the bracket 13 to the spacer 30.
It is fixed to the circular opening 32c of the inward flange portion 32 of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a beam pipe mounting structure in a fence in which a beam pipe is fixed to a support via a bottomed cylindrical bracket having a spherical bottom surface, and particularly to a beam pipe for a fence used on a slope or a road bend. Regarding mounting structure.

[0002]

[Prior art]

 In a sloping ground fence with a structure in which a bracket is fixed to a pillar and a beam pipe is fitted and fixed to this bracket, the beam pipe must be installed parallel to the sloping ground. It is desirable to be able to attach to the column at any angle. A beam pipe mounting structure of this type is shown in FIGS. 10 and 11 (see Japanese Utility Model Publication No. 4-31293). This beam pipe mounting structure is such that a cylindrical end portion 3 into which the beam pipe 1 is fitted is integrally formed with a joint end face 3 having an arc shape in the vertical direction and the left and right direction, and a horizontal oblong hole 4 is formed in the joint end face 3. A bracket 6 in which an elongated vertical hole 5 for joining is formed on the upper surface of the shaped portion 2 is used, and the bracket 6 is placed on both sides of the pillar 7 with the joining end surface 3 of the bracket 6 abutting against the pillar 7 and has a curved seat 8a. The bolt 8 is passed through the strut 7, and the joint end face 3 parts are tightened and fixed to the strut 7 with the nut 9 which also has the curved seat 9a, the beam pipe 1 is inserted into each bracket 6, and the bolt 10 and the nut penetrating vertically The beam pipe 1 is fixed to the bracket 6 by 10a.

[0003]

[Problems to be solved by the device]

 According to the beam pipe mounting structure having the above structure, the beam pipe 1 can be mounted on the support column 7 while being arbitrarily tilted corresponding to the angle of the sloping ground. However, since the joint end surface 3 of the bracket 6 has an arcuate shape in the vertical and horizontal directions, the bracket 7 is in line contact with the column 7 by a horizontal line that is likely to be the center of rotation in the vertical direction, and is sufficiently stable. I can't get the bond I did. Further, even if the bolts 10 are strongly tightened and fixed, the action of the detent for preventing rotation of the bracket 6 around the central axis is not sufficient, and a sufficiently stable connection cannot be obtained in this respect as well. Also, when making an angle in the horizontal direction according to the bend of the road, even if a slight angle is possible, the range of possible angles is extremely narrow, and it is not suitable for the bend of the road. Further, the appearance of the joint portion between the joint end face 3 which is arcuate in two directions of the bracket 6 and the support column 7 is not simple and aesthetically not necessarily good. Further, the bolt 8 and the nut 9 for fixing the bracket 6 to the column 7 cannot be tightened with a spanner when the beam pipe 1 is fitted to the bracket 6, so that the beam pipe 1 is fitted to the bracket 6. It is necessary to perform final tightening and fixing before mounting, and it is not always easy to fix the angle of the bracket 6 to a predetermined angle according to the sloping ground or road bend. Since the mutual fitting length of the beam pipe 1 and the bracket 6 cannot be made sufficiently long, the connection between the beam pipe 1 and the bracket 6 cannot be made sufficiently strong.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and the bracket can be arbitrarily angled vertically or horizontally, and the bracket can be stably attached to the column. In addition, it is easy to correctly align the bracket with a predetermined angle that corresponds to a slope or a road bend, and the beam pipe and bracket can be fitted with a sufficient length to ensure stable connection between the two. An object is to provide a pipe mounting structure.

[0005]

[Means for Solving the Problems]

 The present invention, which solves the above-mentioned problems, has a beam pipe mounting structure in which a beam pipe is fixed to a column through a bottomed cylindrical bracket having a spherical bottom surface. The mounting surface and the other end have an inward flange protruding toward the center, and there are through-holes in the direction of the cylinder center line at multiple circumferential locations of the inward flange, and the mounting surface is fixed to the column. And a protrusion having an outer diameter capable of passing through the circular opening of the inward flange of the spacing member and passing through the passing groove on the outer periphery, and the inward flange is provided. An annular metal fitting that engages the inward flange from the inside by rotating after passing, and a spherical metal plate-shaped metal fitting that has an eccentric elongated hole and has an outer diameter that does not exceed the annular diameter of the annular metal fitting. Insert the bolt head into the slot of the bracket so that the bolt head remains in the spacer. It is characterized by including a mounting bolt that is passed through and a screw portion is inserted into the bracket through a hole on the center line of the bracket, and a nut that is screwed into the screw portion of the mounting bolt.

A second aspect of the present invention is characterized in that a nut driver for turning a nut screwed into a threaded portion of a mounting bolt in the bracket is attached to an end portion of the beam pipe.

[0007]

[Action]

 In the above configuration, when connecting the beam pipe to the column, first, the mounting surface of the spacer is applied to the column, and the spacer is fastened and fixed to the column by bolts penetrating the column at this mounting surface. Next, apart from the spacer, place the mounting bracket from the receiving bracket side into the elongated hole of the bracket and place the mounting bracket from the receiving bracket side with the annular bracket on the spherical bottom surface of the bracket and the spherical shape of the bracket. Pass it through the hole on the bottom and screw the nut into the threaded part inside the bracket. In this state, insert the receiving metal fittings and annular metal fittings into the spacer. In this case, the annular metal fitting is inserted through the circular opening so that the projection on the outer circumference is aligned with the passage groove of the inward flange of the spacer. After inserting the receiving metal fitting and the annular metal fitting into the spacer, rotate the annular metal fitting slightly at an angle to prevent the annular metal fitting from coming off. Next, when the nut that is screwed into the threaded portion inside the bracket is tightened, the spherical bottom surface of the bracket is strongly pressed against the circular opening of the flange facing inward of the spacer by the tightening force of the mounting bolt and nut. Be fixed firmly. In this case, the spherical bottom surface of the bracket hits the circular opening of the spacer, and the head of the mounting bolt is received by the spherical surface of the bracket, so that the bracket angle remains within a certain range. Can be set vertically or horizontally, and the angle of the beam pipe can be set arbitrarily.

In claim 2, the tightening operation of the nut screwed to the mounting bolt is performed by a nut driver provided at the end of the beam pipe. There is no need to separately operate the tool inside the bracket. Therefore, the bracket can be clamped and fixed to the final spacer with the beam pipe fitted to the bracket, and it is easy to set the bracket and beam pipe angles correctly. In addition, the fitting length between the beam pipe and the bracket can be made sufficiently long.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 11 is a pillar made of a round pipe of a fence installed on a slope such as a slope or a curved road portion, 12 is a beam pipe made of the same round pipe as a horizontal crosspiece, and 13 is an end portion of the beam pipe 12. The bracket 30 is attached to the column, and the reference numeral 30 is a spacing member for fixing the bracket 13 to the column 11.

As shown in FIGS. 2 and 3, the spacing member 30 has a cylindrical shape, and comes into contact with the support 11 at one end side, and has a mounting surface portion 31 curved in an arc shape when viewed from above and another end side portion. It has an inward flange portion 32 that protrudes toward the center of the cylinder and forms a circular opening 32c. The inward flange portion 32 has four circumferentially equidistant intervals in the cylinder center line direction (left and right in FIGS. 1 and 3). Direction) through groove 32a, and the same number as the passage grooves 32a, that is, four detent grooves 32b for preventing rotation, are formed on the inside (left side in FIG. 1) of the inward flange portion 32 at an angle of 45 ° with respect to the passage grooves. It is a structure that shifts and holds. Then, in the hole 11a formed in the support 11, a bolt 33 penetrating the support 11 is passed through the hole 31a formed in the mounting surface portion 31, and a nut 34 is screwed into the bolt 33 and tightened to fix the spacer 30 to the support 11. To fix. Reference numeral 35 is a washer.

The bracket 13 has a cylindrical shape with a bottom having a spherical bottom surface 13a, and a circular hole 13b is formed at the center of the spherical bottom surface 13a. The bracket 13 is fixed to the circular opening 32c of the inward flange 32 of the spacing member 30 by a ring-shaped metal fitting 36, a receiving metal fitting 37, a mounting bolt 15, a two-stage washer 16, and a nut 17 with blades. The circular opening 32c is smaller than the outer diameter of the bracket 13 and has a conical receiving surface 32d with which the mainly spherical bottom surface 13a of the bracket 13 comes into contact.

As shown in FIGS. 2 and 4, the annular metal fitting 36 has an annular portion 36 a having a diameter that allows it to pass through the circular opening 32 c of the inward flange portion 32 of the spacing member 30, and The outer periphery is provided with four protrusions 36b capable of passing through the four passage grooves 32a. The protrusion 36b can be fitted into the concave groove 32b of the inward flange 32 of the spacing member 30 from the inner side of the spacing member 30. Further, as shown in FIGS. 2 and 5, the receiving fitting 37 has a spherical plate shape with an outer diameter not exceeding the diameter of the annular portion of the annular fitting 36, and has an eccentric elongated hole 37a.

The mounting bolt 15 is inserted into the elongated hole 37 a of the receiving metal fitting 37 so that the head portion 15 a remains in the spacer 30, and the screw portion 15 b is inserted into the bracket 13 from the hole 13 b of the bracket 13. To be done. The two-step washer 16 includes a small-diameter circular plate 16a that contacts the inner surface of the spherical bottom surface 13a of the bracket 13 and a large-diameter circular plate 16b that is located on the cylindrical inner surface portion of the bracket 13. It is composed of a circular plate 16a, 16b and a cylindrical member 16c which is interposed between the circular plates 16a and 16b to define the distance between the two. The vane nut 17 has a structure in which four vanes 17b are integrally fixed to the outer surface portion of the hexagonal portion (normal hexagonal nut portion) 17a in two directions at right angles.

The end portion of the beam pipe 12 is fitted into the bracket 13, and as shown in FIGS. 8 and 9, the countersink 13 c formed in the bracket 13 and the beam pipe 12 formed in the beam pipe 12 are long in the longitudinal direction. A countersunk screw 20 passed through the long hole 12a, a washer 21 having a cylindrical surface conforming to the inner surface shape of the beam pipe 12 and a nut 22 held in the long hole 12a portion of the beam pipe 12 by a nut pressing member 23 described later. It is fixed by tightening with.

Further, at the end of the beam pipe 12, a nut-shaped nut driver 24 for rotating the vaned nut 17 is fixed. As shown in FIGS. 6 and 7, the nut driver 24 has a rib 25 having a concave cutout 25a that engages with the hexagonal portion 17a of the winged nut 17 and a rib 25 that is fitted to the rib 25 at a right angle. The ribs 26 each having a notch 26a that engages with the hexagonal portion 17a of the bladed nut 17 are fitted into the four grooves 12b provided at the end of the beam pipe 12 in two directions at right angles to fix the adhesive. It is fixed by welding.

Next, a mounting work procedure in the above beam pipe mounting structure will be described. First, the mounting surface portion 31 of the spacing member 30 is applied to the column 11, the bolt 33 penetrating the column 11 in the hole 11a is inserted into the hole 31a of the mounting surface portion 31, and the washer 35 is interposed to fix the bolt 33. Thereby, the spacer 30 is firmly fixed to the support 11. Next, apart from the spacing member 30, the receiving fitting 37, the annular fitting 36, and the bracket 13 are assembled in the same order as in FIG. That is, the annular metal fitting 36 is applied to the spherical bottom surface 13a of the bracket 13 and the receiving metal fitting 37 is applied to the annular step portion 36c of the annular metal fitting 36. Then, the mounting bolt 15 is passed from the receiving metal fitting 37 side through the long hole 37a of the receiving metal fitting 37 and the hole 13b of the spherical bottom surface 13a of the bracket 13, and the two-step washer 16 is passed through the threaded portion 15b in the bracket 13 The nut 17 is screwed into the screw portion 15b. In this state, the receiving metal fitting 37 and the annular metal fitting 36 are put into the spacing member 30. In this case, the protrusion 36b on the outer periphery of the annular metal fitting 36 is inserted from the circular opening 32c in alignment with the passage groove 32a of the inward flange 32 of the spacing member 30. After the receiving metal fitting 37 and the annular metal fitting 36 are put into the inside, the annular metal fitting 36 is rotated by 45 ° to fit the projection 36b into the groove 32b of the spacing member 30 as shown in FIG. It can be stopped.

After the above-described operation is performed on the columns (not shown) on the opposite side of the span, both ends of the beam pipe 12 are fitted into the brackets 13 attached to the columns 11 respectively. In this case, one end of the beam pipe 12 is pushed deeply into one bracket 13 and then the other end is fitted into the other bracket 13 with a margin.

Next, when the nut driver 24 at the end of the beam pipe 12 is engaged with the nut 17 with blades and rotated, the spherical bottom surface 13a of the bracket 13 is separated by the tightening force of the mounting bolt 15 and the nut 17 with blades. The bracket 13 is strongly pressed against the circular opening 32c of the inward flange 32 of the member 30, whereby the bracket 13 is firmly fixed to the spacing member 30. Further, the two-step washer 16 correctly holds the mounting bolt 15 at the center position of the bracket 13. At this time, the bracket 13 and the beam pipe 12 are automatically set to a desired angle according to the sloping ground or the like.

In this case, the spherical bottom surface 13 a of the bracket 13 hits the circular opening 32 c of the spacing member 30, and the head 15 a of the mounting bolt 15 is received by the spherical bolt receiving surface 37 b of the receiving metal fitting 37. By making the bolt receiving surface 37b perpendicular to the bolt axis by this, the angle of the bracket 13 can be arbitrarily tilted within a certain range, and the beam pipe 12 can be tilted. In addition, it is possible to achieve a sufficiently stable tightening. Further, since the bracket 13 has a structure in which the spherical bottom surface 13a is in contact with and fixed to the circular opening 32c of the spacing member 30, a relatively large inclination angle can be taken.

Next, the countersunk screw 20 is screwed into the nut 22 arranged inside the beam pipe 12 through the countersink 13c of the bracket 13 and the long hole 12a of the beam pipe 12, and is tightened. Fixed to. In this case, as shown in FIGS. 8 and 9, the nut 22 is moved to the elongated hole 12a portion of the beam pipe 12 in the beam pipe longitudinal direction by the nut pressing member 23 formed by punching and bending a metal plate having a spring property. It is held so as to be able to correctly correspond to the position of the countersink 13 of the bracket 13 even if there is some error in the length or position of the beam pipe 12.

The sectional shape of the spacing member 30 is not necessarily limited to the cylindrical shape. It suffices if the end portion is provided with an inward facing flange portion having a tubular shape and having a mounting surface portion that comes into contact with the column 11 at one end side and a circular opening portion at the other end side. Moreover, the support pillar is not limited to a round pipe, and may be a square pipe. The means for tightening and fixing the mounting bolt 15 is not limited to the vane nut 17 as in the embodiment, and is not limited to the case where the two-stage washer 16 is used as in the embodiment. The fixing means for the beam pipe 12 and the bracket 13 is not limited to the configuration in which the nut holding member 23 is movably held in the beam pipe 12 as in the embodiment, and various other means can be considered.

[0022]

[Effect of device]

 According to the present invention, the spherical bottom surface of the bracket is fixed by contacting with the circular opening of the inward flange of the spacing member fixed to the column, and the head is fixed by the spherical plate-like bracket. Since it is tightened and fixed by the mounting bolts that can be received, it can be angled vertically or horizontally, and is more stable with respect to the column than in the case of conventional line contact using horizontal lines. Joining is done. In addition, the range in which the angle can be actually set becomes larger. In addition, the bracket is less likely to rotate around its central axis.

In appearance, in the connecting portion between the bracket and the spacing member, the spherical bottom surface of the bracket only fits into the circular opening of the cylindrical spacing member, and the coupling member between the spacing member and the column is connected. The cylindrical spacers are also fixed to the columns by internal bolts, which has a simple appearance with no unnecessary unevenness or exposed parts, which is aesthetically pleasing.

According to a second aspect of the present invention, by fixing the nut screw that rotates the nut screwed to the threaded portion of the mounting bolt to the end portion of the beam pipe, after the beam pipe is fitted into the bracket, the final bracket It is easy to fix the bracket and beam pipe to a predetermined angle according to the slope or road bend, and the fitting length of the beam pipe and the bracket can be easily adjusted. Can be taken sufficiently, and a stable bond between the two is realized.

[Brief description of drawings]

FIG. 1 is a sectional view of a beam pipe mounting structure showing an embodiment of the present invention.

2 is a cross-sectional view taken along line AA of FIG.

3 (A) is a diagram showing only the spacing member in FIG. 2, and FIG. 3 (B) is a sectional view taken along line BB in FIG. 3 (A).

FIG. 4 is a view showing only the annular metal fitting in FIG.

FIG. 5 is a view showing only the receiving fitting in FIG.

6 is a cross-sectional view taken along line CC of FIG.

7 is a cross-sectional view taken along the line DD in FIG.

FIG. 8 is an enlarged EE sectional view of the main part in FIG.

9 is a plan view of FIG. 8 as seen from above.

FIG. 10 is a front view showing a conventional beam pipe mounting structure.

11 is an enlarged perspective view of the bracket in FIG.

[Explanation of symbols]

 11 Struts 11a Strut Holes 12 Beam Pipes 12a Long Holes 12b Grooves 13 Brackets 13a Spherical Bottom 13b Holes 13c Countersinks 15 Mounting Bolts 15a Heads 15b Screws 17 Blade Nuts 24 Nut Turning 25, 26 Ribs 25a, 26a Notches 30 Spacer 31 Mounting surface 32 Inward flange 32a Passage groove 32b Groove 32c Circular opening 33 Bolt 36 Annular metal fitting 36a Annular portion 36b Projection 37 Receiving metal fitting 37a Oval hole

Claims (2)

[Scope of utility model registration request] 1. A beam pipe mounting structure in a fence in which a beam pipe is fixed to a support via a bottomed cylindrical bracket having a spherical bottom surface, the mounting surface being tubular and having one end contacting the support. And an inward flange portion projecting toward the center side on the other end side, through holes in the cylinder center line direction at a plurality of circumferential positions of the inward flange portion, and a spacing member fixed to the column at the mounting surface portion. , A protrusion having an outer diameter capable of passing through the circular opening of the inward flange portion of the spacing member and capable of passing through the passage groove is provided on the outer periphery, and is rotated after passing through the inward flange portion By virtue of this, an annular metal fitting that engages inwardly with the inward flange portion and an eccentric elongated hole, and a spherical plate-shaped receiving metal fitting having an outer diameter that does not exceed the annular portion diameter of the annular metal fitting, and an elongated hole of the receiving metal fitting. Is inserted so that the bolt head remains in the spacer, Beam pipe mounting for a fence, characterized in that the two threaded portions include a mounting bolt that is inserted into the bracket through a hole on the center line of the bracket, and a nut that is screwed into the threaded portion of the mounting bolt. Construction. 2. The beam pipe for a fence according to claim 1, further comprising a nut driver attached to an end of the beam pipe for turning a nut screwed into a threaded portion of a mounting bolt in the bracket. Mounting structure.