JP5608451B2 - Fence beam mounting structure - Google Patents

Description

  The present invention relates to a beam mounting structure for a fence such as a panel fence or a beam fence installed on a road or the like.

  Conventionally, as a beam mounting structure of a fence installed on a road or the like, for example, a beam fixing device that fixes a beam longitudinal end to a hollow column, a mounting opening formed at the beam mounting position of the column, It has a loose fitting mounting portion that is inserted into the mounting opening and receives and freely fits the lower edge thereof, and a semicircular beam mounting portion on which the beam longitudinal direction end portion is mounted, and is freely inserted into the mounting opening of the column. A lower bracket that is installed in a vertically swingable manner through the fitting mounting portion, and the mounting position of the lower bracket is set and the end of the beam longitudinal direction on the beam mounting portion is placed in the mounting opening. A retaining engagement portion that pivots and inserts and engages with the upper edge thereof and a semi-circular beam retainer portion that retains the end in the longitudinal direction of the beam are retrofitted to the mounting opening of the column. Upper bracket to be installed and the above beam mounting part Rotation guide means for guiding the positioning of the lower bracket and the upper bracket in a horizontal circle by inserting a pivoting engagement of the retaining engagement portion with respect to the mounting opening disposed between the beam holding portions, and the beam longitudinal end portion A beam mounting structure for a fence using a beam fixing device for a fence comprising a fastener that penetrates and fastens between the beam mounting portion and the beam pressing portion and integrates the lower bracket and the upper bracket. Has been proposed. (Patent Document 1)

Japanese Patent Laid-Open No. 10-238170

  However, in the beam mounting structure of the above-mentioned protective fence, when the beam of the fence is temporarily placed on the lower bracket, if the beam moves freely or some external force acts on the beam, the beam easily falls and breaks, or the fall This was a factor that caused injury to the workers.

  Therefore, the present invention provides a beam mounting structure for a fence that suppresses the beam from falling easily when the fence beam is temporarily placed on a metal fitting.

In order to achieve the above object, the present invention is configured as follows.
That is, in the beam mounting structure of the fence according to the present invention, the mounting bracket disposed on the side surface of the column is covered with the lower bracket having a receiving portion for receiving the fence beam end, and the lower bracket, An upper metal fitting for covering and a rear metal fitting arranged on the opposite side of the support to the support and attached to the support are provided, and mounting holes are penetrated at the upper and lower sides of the fence beam end, On the inner surface of the part, a lower metal fitting cylindrical projection to be inserted into a mounting hole provided on the lower surface of the fence beam end is projected, and the upper metal inner surface is provided on the upper surface of the fence beam end. An upper metal fitting cylindrical projection to be inserted into the mounting hole is provided opposite to the lower metal fitting cylindrical projection, and a bolt is inserted and screwed into the hollow of the upper metal fitting cylindrical projection and the lower metal fitting cylindrical projection. It is input Rutotomoni, the inner surface of the rear bracket, bottomed female screw is engraved on an inner peripheral surface thereof The rear metal fitting cylindrical protrusion is protruded, the rear metal fitting cylindrical protrusion is inserted into the metal fitting mounting hole drilled in the column, and the bolt inserted into the through hole drilled in the lower metal fitting The fence beam is attached to the support post via the attachment fitting, and is screwed to the fitting cylindrical protrusion .

  Further, in the beam mounting structure of the fence according to the present invention, the upper metal fitting cylindrical protrusion is formed into a bottomed shape in which an internal thread is engraved on the inner peripheral surface, and the lower metal fitting cylindrical shape from below the lower metal fitting. A bolt is inserted into a mounting hole provided in the protrusion and the end of the fence beam, and the bolt is screwed into the upper metal fitting cylindrical protrusion.

According to the beam mounting structure of the fence according to the present invention, the mounting bracket disposed on the side surface of the column is covered with the lower bracket having a receiving portion for receiving the fence beam end, and the lower bracket, An upper metal fitting for covering and a rear metal fitting arranged on the opposite side of the support to the support and attached to the support are provided, and mounting holes are penetrated at the upper and lower sides of the fence beam end, On the inner surface of the part, a lower metal fitting cylindrical projection to be inserted into a mounting hole provided on the lower surface of the fence beam end is projected, and the upper metal inner surface is provided on the upper surface of the fence beam end. An upper metal fitting cylindrical projection to be inserted into the mounting hole is provided opposite to the lower metal fitting cylindrical projection, and a bolt is inserted and screwed into the hollow of the upper metal fitting cylindrical projection and the lower metal fitting cylindrical projection. is input Rutotomoni, the inner surface of the rear bracket, among female screw on the peripheral surface is engraved by a bottomed that A face metal fitting cylindrical protrusion is protruded, the back metal fitting cylindrical protrusion is inserted into a metal fitting mounting hole drilled in the column, and a bolt inserted into a through hole drilled in the lower metal fitting is the back metal fitting. Since the fence beam is attached to the column via the mounting bracket and is screwed to the cylindrical projection, when the fence beam is temporarily placed on the bracket, it protrudes from the inner surface of the receiving part of the lower bracket attached to the side of the column. If the lower metal fitting cylindrical projection is inserted into the mounting hole provided on the lower side of the end of the fence beam, even if some external force is applied to the fence beam, the fence metal beam falls due to the lower metal fitting cylindrical projection. In addition to being able to suppress this, since the fence beam is positioned, it is easy to fit the upper metal fitting cylindrical projection into the mounting hole provided on the upper side of the fence beam end, and the fence construction is done efficiently be able to. Furthermore, even if the bolt loosens and falls off due to some reason, the rail beam falls immediately because the upper metal fitting cylindrical projection and the lower metal fitting cylindrical projection are caught in the mounting hole at the end of the fence beam. Risk can be prevented.

  Further, according to the beam mounting structure of the fence according to the present invention, the upper metal fitting cylindrical projection is formed into a bottomed shape in which an internal thread is engraved on the inner peripheral surface, and the lower metal fitting cylinder is formed from below the lower metal fitting. Since the bolt is inserted into the mounting hole provided in the end of the projection and the beam end of the fence and the bolt is screwed into the cylindrical projection of the upper bracket, the bolt and nut are not exposed on the upper surface of the upper bracket. The risk of getting caught and injured can be reduced.

It is a front view which shows one Embodiment of the beam attachment structure of the fence which concerns on this invention. It is a disassembled perspective view of the beam mounting structure of the fence shown in FIG. It is a perspective view which shows the inner surface side of the upper metal fitting used for the beam mounting structure of the fence shown in FIG. It is principal part sectional drawing of the beam mounting structure of the fence shown in FIG.

Embodiments of the present invention will be specifically described below with reference to the drawings.
In the figure, reference numeral 1 denotes a column composed of a plurality of cylindrical pipes standing on the ground at intervals, and a column cap 11 is fitted and closed at the upper end thereof. Reference numeral 2 denotes a fence beam passed between the columns 1, and an attachment hole 22 is penetrated through the fence beam end portion 21 at the upper and lower side surfaces thereof. 3 includes a lower metal fitting 4 having a receiving portion 41 for receiving the fence beam end portion 21, an upper metal fitting 5 that covers the lower metal fitting 4 and covers the fence beam end portion 21, and a lower metal fitting 4 with respect to the column 1. A back metal fitting 6 is disposed on the opposite side and attached to the support column 1, and the fence beam 2 is attached to the support column 1 via the attachment metal fixture 3.

  On the inner surface 42 of the receiving portion of the lower metal fitting 4, a lower metal fitting cylindrical projection 43 inserted into a mounting hole 22 provided on the lower surface of the fence beam end portion 21 is projected. An upper metal fitting cylindrical projection 52 to be inserted into the mounting hole 22 provided on the upper side surface of the beam end portion 21 is provided so as to face the lower metal fitting cylindrical projection 43 so that the upper metal fitting cylindrical projection 52 is provided. Is formed in a bottomed shape in which a female screw 53 is engraved on the inner peripheral surface thereof, and bolts are provided from below the lower metal fitting 4 to the mounting holes 22 provided in the lower metal fitting cylindrical protrusion 43 and the fence beam end portion 21. B1 is inserted, the bolt B1 is screwed into the upper metal fitting cylindrical projection 52, and the fence beam 2 is attached to the column 1.

  The lower metal fitting 4 includes a column mounting part 44 that is recessed in a semi-cylindrical shape along the outer shape of the pipe-shaped column 1, and has a semi-columnar shape that receives the fence beam end 21 from the lower part of the column mounting part 44 toward the tip. A receiving portion 41 is extended, and two lower metal fitting cylindrical projections 43 project from the bottom of the receiving portion inner surface 42 with a gap therebetween. Further, a through hole 45 is formed in the upper part of the column attachment portion 44. Further, a column attachment portion cylindrical projection 46 is provided so as to be connected to the periphery of the through hole 45 on the column attachment portion 44 side.

  The upper metal fitting 5 is provided with a semi-columnar covering portion 55 extending from the fitting portion 54 fitted to the upper portion of the column mounting portion 44 of the lower metal fitting 4 toward the tip, and covering the fence beam end portion 21. An upper metal fitting cylindrical projection 52 to be inserted into a mounting hole 22 provided on the upper side surface of the fence beam end portion 21 is provided at the top of the inner surface of the portion 55 so as to face the lower fitting cylindrical projection 43. Yes.

  The rear metal fitting 6 is formed in a semi-cylindrical shape along the outer shape of the pipe-shaped support column 1, and a rear metal fitting cylindrical protrusion 62 is projected on the inner surface 61, and a female screw 63 is engraved on the inner peripheral surface thereof. It has a bottomed shape.

Next, a method for attaching the fence beam 2 to the column 1 will be described.
A column mounting portion cylindrical projection 46 protruding from the column mounting portion 44 of the lower bracket 4 is inserted into one of the bracket mounting holes 12 drilled opposite to a predetermined position on the side surface of the column 1, and bolts B2 is inserted, and the back fitting cylindrical projection 62 protruding from the inner surface 61 of the back fitting 6 is inserted into the other fitting mounting hole 12, and the bolt B2 is inserted into the female screw 63 engraved on the inner peripheral surface thereof. The lower metal fitting 4 and the back metal fitting 6 are fixed to the column 1 by screwing. Next, the mounting hole 22 provided on the lower surface of the fence beam end portion 21 is fitted into the lower metal fitting cylindrical projection 43 projecting from the receiving portion inner surface 42 of the lower metal fitting 4 so as to be in a temporarily placed state. An upper metal fitting cylindrical protrusion 52 protruding from the top of the inner surface is inserted into an attachment hole 22 provided on the upper side surface of the fence beam end portion 21, and the lower metal fitting cylindrical protrusion 43 and the attachment hole 22 from below the lower metal fitting 4. A bolt B1 is inserted into the upper metal fitting cylindrical projection 52, and the fence beam 2 is attached to the support column 1 via the attachment metal fitting 3.

  According to the beam mounting structure of the fence according to the present invention, the mounting bracket disposed on the side surface of the column is covered with the lower bracket having a receiving portion for receiving the fence beam end, and the lower bracket, A mounting hole is provided on the upper and lower side surfaces of the end portion of the fence beam, and an inner surface of the receiving portion of the lower bracket is inserted into an installation hole provided on the lower side surface of the end portion of the fence beam. A lower metal fitting cylindrical projection is provided on the inner surface of the upper metal fitting, and an upper metal fitting cylindrical projection inserted into a mounting hole provided on the upper surface of the end of the fence beam is opposed to the lower metal fitting cylindrical projection. Since the bolt is inserted and screwed into the hollow of the upper metal fitting cylindrical protrusion and the lower metal fitting cylindrical protrusion, and the fence beam is attached to the support via the attachment metal, When the beam is temporarily placed on the mounting bracket, it is projected on the inner surface of the receiving part of the lower bracket attached to the side of the column. If the lower metal fitting cylindrical projection is inserted into the mounting hole provided on the lower surface of the fence beam end, even if some external force acts on the fence beam, the lower fitting cylindrical projection prevents the fence beam from falling. As a possible beam mounting structure of a fence, it can be suitably used.

DESCRIPTION OF SYMBOLS 1 support | pillar 11 support | pillar cap 12 metal fitting attachment hole 2 fence beam 21 fence beam end part 22 attachment hole 3 attachment metal fitting 4 lower metal fitting 41 receiving part 42 receiving part inner surface 43 lower metal fitting cylindrical projection 44 pillar attachment part 45 through hole 46 pillar attachment part Cylindrical projection 5 Upper bracket 51 Upper bracket inner surface 52 Upper bracket cylindrical projection 53 Female screw 54 Fitting portion 55 Covering portion 6 Rear bracket 61 Rear bracket inner surface 62 Rear bracket cylindrical projection 63 Female screw B1, B2 Bolt

Claims (2)

The mounting bracket arranged on the side of the column is a lower bracket with a receiving part that receives the end of the fence beam, an upper bracket that covers the bottom bracket and covers the end of the fence beam, and is opposite to the lower bracket with respect to the column A rear fitting that is disposed on the side, and is attached to a support column, and an attachment hole is penetrated in the upper and lower side surfaces of the fence beam end, and an inner surface of the receiving part of the lower fitting is provided on a lower side of the fence beam end. A lower metal fitting cylindrical projection to be inserted into the provided mounting hole is projected, and on the inner surface of the upper metal fitting, an upper metal fitting cylindrical projection to be inserted into the attachment hole provided on the upper side surface of the fence beam end is provided. are protruded to face the bottom bracket tubular projecting, the upper fitting tubular projecting and the bolt into the hollow of the lower fitting tubular protrusions are inserted, screwed Rutotomoni, the inner surface of the rear bracket, A bottom metal fitting with a bottom with a female thread engraved on its inner peripheral surface is projected, Protrusions are inserted into the metal mounting hole formed in the strut, the inserted bolts through holes drilled in the bottom bracket is screwed to the rear plate tubular projecting, the fence beam mounting bracket A mounting structure of a fence beam, which is attached to a support post via.   The upper metal fitting cylindrical projection has a bottomed shape with a female screw engraved on the inner peripheral surface thereof, and is attached to a mounting hole provided in the lower metal fitting cylindrical projection and the fence beam end from below the lower metal fitting. 2. The fence beam mounting structure according to claim 1, wherein a bolt is inserted and the bolt is screwed into an upper metal fitting cylindrical projection.

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