JP2007198064A - Protective fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protective fence of which the lateral beam can be easily attached to a strut without a rattle. <P>SOLUTION: After inserting the end of the lateral beam 2 through an attachment hole 3 formed at the side of the strut 1, a wedge-shaped fixing member 6 is press-fitted between the end of the lateral beam 2 and the end edge of the attachment hole 3, and thus the lateral beam 2 is attached to the strut 1. By this, only by hammering the fixing member 6 between the end of the lateral beam 2 and the end edge of the attachment hole 3 by a blowing instrument, for example, a hammer or the like, the lateral beam 2 can be attached to the strut 1 without a rattle. Since the fixing member 6 can be attached to an inconspicuous position by press-fitting the fixing member 6 between the undersurface of the end of the lateral beam 2 and the lower end edge of the attachment hole 3, the fence it has a favorable appearance. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a protective fence in which a lateral beam is attached between columns that are erected at intervals on a road side edge or the like.

  Conventionally, there have been various proposals relating to such a protective fence, for example, there is a protective fence as described in Patent Document 1.

  This guard fence has a mounting hole on the side of the column that is slightly larger than the cross-sectional size of the horizontal beam, an annular ring is attached to the periphery of this mounting hole, and the tip of the horizontal beam is inserted into this ring. A mounting pin is inserted into a through hole provided at the tip of the inserted transverse beam. At this time, the tip of the inserted ring is bent along the inner side of the support so that the ring does not come off, and the ring is attached to the support with the bent part and the outer ring sandwiching the side of the support. .

Japanese Utility Model Publication No. 53-2527

  However, in the guard fence as described above, when the tip of the transverse beam is inserted into the ring, if the inner diameter of the ring is made larger than the outer diameter of the transverse beam so as to be easily inserted, rattling occurs, and conversely, If it is too much, it will be difficult to insert, but in any case, there will be some gap between the inner diameter of the ring and the outer diameter of the transverse beam. There is a problem that noise is generated unnecessarily. Furthermore, the vibration may rub the ring and the transverse beam, and the ring and the transverse beam may be damaged.

  Accordingly, the present invention is intended to solve the above-described problems and provide a protective fence that can be easily attached to the support column without rattling the lateral beam.

In order to achieve the above object, the present invention is configured as follows.
That is, the guard fence according to the present invention is configured such that a wedge-shaped fixing member is press-fitted between the end of the horizontal beam inserted into the mounting hole provided on the side surface of the tubular column and the edge of the mounting hole, thereby The beam is attached to the support column.

  According to the present invention, the wedge-shaped fixing member is press-fitted between the lateral beam end and the mounting hole edge after the lateral beam end is inserted into the mounting hole provided on the side surface of the tubular column. Because the horizontal beam is attached to the column, the horizontal beam can be attached to the column without rattling simply by driving the fixing member between the end of the horizontal beam and the edge of the mounting hole with an impact tool such as a hammer. Can do. Moreover, since the fixing member can be press-fitted between the lower surface of the end portion of the horizontal beam and the lower end edge of the mounting hole and attached at an inconspicuous position, the appearance is also preferable.

  Further, in the present invention, when the fixing member is provided with a sawtooth-shaped protrusion at least on the lower surface thereof and is press-fitted between the lateral beam end and the mounting hole edge, the protrusion is locked to the mounting hole edge. You may do it. In this way, since the protrusion of the fixing member is caught on the inner surface side of the support column and is locked in the press-fitted state, it is possible to prevent the fixing member from falling off due to vibration generated by passing a vehicle or the like. it can.

Embodiments according to the present invention will be specifically described below with reference to the drawings.
1 is a front view showing an embodiment of a protective fence according to the present invention, FIG. 2 is a partial cross-sectional view showing details of a mounting portion between a horizontal beam and a column in FIG. 1, and FIG. 1 is a front view of the fixing member used in FIG. 1, (b) is a plan view thereof, (c) is a bottom view thereof, (d) is a left side view thereof, (e) is a right side view thereof, and FIG. It is explanatory drawing of the attachment hole provided in the support | pillar used for.

  P is a protective fence according to the present invention installed on a road or the like, and a horizontal beam 2 is attached in three stages with a space in parallel between the vertical columns 1 arranged vertically.

  A mounting hole 3 is formed in the side surface of the support column 1, and a cap 4 is attached to the upper end portion. The cross-sectional shape of the column 1 is not particularly limited, such as a circle or a rectangle, and the material thereof is not particularly limited. In this embodiment, the support column 1 is made of a pipe having a substantially rectangular cross section, and the material is made of a steel pipe, an aluminum pipe, or an outer periphery of which a synthetic resin is coated or coated.

  The transverse beam 2 is made of a pipe having a substantially rectangular cross section, similar to the support 1, and is made of a steel pipe, an aluminum pipe, or a synthetic resin coated or coated on the outer periphery thereof. In addition, the horizontal beam 2 may be attached up and down, and a vertical beam or a panel may be appropriately attached between the horizontal beams 2.

  Reference numeral 5 denotes a stop pin for preventing the lateral beam 2 inserted through the mounting hole 3 formed in the side surface of the support column 1 from falling off. The stop pin 5 is formed by bending the wire into an inverted L shape. It is made from a hollow plate and is inserted and locked in a through hole 21 formed in the end of the transverse beam 2.

  Reference numeral 6 denotes a wedge-shaped fixing member, and after the end of the horizontal beam 2 is inserted into the mounting hole 3 formed in the side surface of the column 1, the lower surface of the end of the horizontal beam 2 and the lower end edge of the mounting hole 3 In the meantime, the transverse beam 2 is attached to the support column 1 without rattling by being driven from the front end side of the fixing member 6 with a hitting tool such as a hammer and press-fitted.

  Specifically, the mounting hole 3 includes an upper hole 31 through which the end of the transverse beam 2 is inserted and a lower hole 32 into which the fixing member 6 having a narrower width than the upper hole 31 can be inserted. Then, the end of the transverse beam 2 is inserted into the upper hole 31, the end of the transverse beam 2 is placed on the lower edge of the upper hole 31, and the distal end side of the fixing member 6 is inserted into the lower hole 32 and press-fitted. The end portion of the transverse beam 2 is pressed against the upper end edge of the upper hole 31 by the fixing member 6 press-fitted between the lower surface of the end portion of the transverse beam 2 and the lower end edge of the lower hole 32 that is the lower end edge of the mounting hole 3. Fixed.

  In this embodiment, the mounting hole 3 is composed of the upper hole 31 and the lower hole 32. However, the mounting hole 3 may be composed of only the upper hole 31 through which the end of the transverse beam 2 is inserted. In this case, when the end portion of the horizontal beam 2 is inserted into the mounting hole 3, the lower end surface of the end portion of the horizontal beam 2 abuts against the lower end edge of the mounting hole 3 by its own weight. It is necessary to lift the two ends slightly and make a gap.

  The fixing member 6 is provided with a locking portion 61 sized to cover the lower hole 32 at the base end, and when the fixing member 6 is driven into the lower hole 32 by a striking tool, the fixing member 6 is attached to the support 1. It is made to be locked by the locking portion 61 so as not to enter the inside.

  Further, the fixing member 6 has a wedge portion 62 protruding from the back surface of the locking portion 61, and the wedge portion 62 gradually decreases in thickness toward the tip.

  Further, on the upper surface side and the lower surface side of the wedge portion 62, sawtooth-shaped protrusions 63 a and 63 b each having an inclined surface on the front end side are formed. When the fixing member 6 is driven into the lower hole 32, the upper surface side protrusion 63 b is caught on the lower surface of the lateral beam 2, and the lower surface side protrusion 63 a is caught on the lower edge of the lower hole 32, so that the fixing member 6 falls off. There has been no such thing.

  Further, as described above, the wedge portion 62 is notched in a trapezoidal shape so as to have a U-shape in plan view so as not to interfere with the stop pin 5 inserted into the through hole 21 formed in the end portion of the transverse beam 2. The pin 5 is passed through the central part downward. When the horizontal beam 2 is attached with an angle in the left-right direction, if the stop pin 5 and the fixing member 6 interfere with each other, one of the U-shaped portions may be cut and the fixing member 6 may be driven.

  The material of the fixing member 6 is not particularly limited. As described above, the fixing member 6 is driven into the gap between the horizontal beam 2 and the mounting hole 3 and is not damaged so as not to damage the horizontal beam 2 or the column 1. Hard rubber or the like is preferable.

  In the above configuration, both the support column 1 and the horizontal beam 2 are substantially rectangular. However, in the case of a circular shape, the support column 1 and the horizontal beam 2 to be used, such as the wedge portion 62 using a crescent-shaped fixing member 6. Depending on the shape, the fixing member 6 in which the shapes of the locking portion 61 and the wedge portion 62 are appropriately changed may be used.

  The protective fence according to the present invention can be attached to the support column without rattling by simply driving the fixing member between the end portion of the horizontal beam and the edge of the mounting hole with an impact tool such as a hammer. It can be suitably used as a protective fence with excellent properties.

It is a front view showing one embodiment of a protection fence concerning the present invention. It is a fragmentary sectional view which shows the detail of the attaching part of the horizontal beam of FIG. 1, and a support | pillar. (A) is a front view of the fixing member used in FIG. 1, (b) is a plan view thereof, (c) is a bottom view thereof, (d) is a left side view thereof, and (e) is a right side view thereof. is there. It is explanatory drawing of the attachment hole provided in the support | pillar used in FIG.

Explanation of symbols

P Guard fence 1 Post 2 Horizontal beam 3 Mounting hole 31 Upper hole 32 Lower hole 6 Fixing member 61 Locking part 62 Wedge part 63a Projection 63b Projection

Claims (2)

The wedge-shaped fixing member is press-fitted between the end of the horizontal beam inserted into the mounting hole provided on the side surface of the tubular column and the edge of the mounting hole, so that the horizontal beam is attached to the column. Features a protective fence. The fixing member includes a sawtooth-shaped protrusion at least on a lower surface thereof, and the protrusion is locked to the edge of the mounting hole when press-fitted between the end of the transverse beam and the edge of the mounting hole. The protective fence according to claim 1, wherein the protective fence is made.