JP3497668B2 - Protective fence - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection fence such as a crossing prevention fence, a fall prevention fence, a boundary fence, and the like, particularly a slope or a curve point, which is installed at a boundary between a sidewalk and a roadway. The present invention relates to a protective fence that is preferably installed in a building. 2. Description of the Related Art Conventionally, as this kind of protective fence, for example, Japanese Utility Model Publication No. Sho 56-34008, a horizontal beam is attached between a plurality of columns through directional free joints. Has a U-shaped cross section, and consists of a column fixing plate portion on the bottom side facing the column, and a horizontal beam fixing plate portion on the opposite side sandwiching the horizontal beam, and each ridge of the column fixing plate portion extends along the column. At the same time, the center part is curved into a spherical shape on the inside, and a bolt mounting hole is formed in the column fixing plate portion, and a bolt hole is formed in opposition to the horizontal beam fixing play portion. There has been proposed a protective fence in which the lateral beam and the directional joint are connected to each other via bolts from the left and right so as to be freely refracted in the vertical and horizontal directions. [0003] However, such a protective fence has a shape in which each ridge of a column fixing plate portion of a directionally adjustable joint is curved along the column and a central portion is curved inward in a spherical shape. Therefore, the directional joint is fixedly attached to the column in advance in two directions, one for the sloped land and one for the curve point, and has the following disadvantages. [0004] Depending on the installation location of the protective fence, the work must be performed while taking into account the mounting direction of the directional joint to the support, and there is a disadvantage that the number of construction steps is increased. In particular, when a protective fence is installed on a slope and at a curve point, there is a drawback that the direction of attachment of the directional universal joint to the support column is easily misplaced and difficult to construct. [0005] In particular, when a protective fence is installed on a sloping ground and at a curve point, even if the bolt through hole of the lateral beam is formed in an elliptical shape that is long in the axial direction so as to be rotatably mounted on the directional joint, it is possible to use the same. There is a drawback that the angle of refraction in the vertical direction and the horizontal direction is limited, and it is not always possible to cope with a combination road of a slope and a curve. Accordingly, the present inventor has conducted intensive studies in view of the conventional disadvantages, and as a result, has provided a protective fence which has solved the above-mentioned disadvantages. [0007] The protective fence of the present invention is a support fence provided with a counterbore formed in a side wall and having a flat surface at least in the vicinity of the counterbore, and a bracket provided on the support through a bracket. There are have you to fences made is bridged, the bracket contact surface between the struts at the larger diameter than the seat Ku径of the seat Quanah is made flat, the beam attachment portions of the pair of projecting to face the surface And an insertion portion formed in a cylindrical shape slightly smaller in diameter than the counterbore diameter of the counterbore on the contact surface of the lid portion. is inserted attached to Quanah, those attaching portion formed on the fence body end is being pivotally attached to the co-when inserted between the beam attachment portion which faces formed in said bracket, strut bracket When attaching the protective fence to the It can easily respond to slopes and curve points,
Installation at a place where the inclination and the curve are combined can be easily dealt with by appropriately setting the mounting angle of the bracket. Since the abutment surfaces of the bracket and the strut are each flat, even if the bracket is rotated at an appropriate angle and attached, a gap is not formed in the abutment surface, and the protective fence is suitable for a landscape. An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a column, and a plurality of columns are erected on the ground at appropriate intervals in a line.
A horizontal beam 2 is provided between the columns 1 and 1 to form a fence 3. The support 1 is a long body having a rectangular cross section made of natural stone. The column 1 has a counterbore penetrating through two opposing side surfaces. The column 1 is not limited to the above-described materials, and a metal tube such as a steel tube or a non-metallic inorganic material such as concrete may be used. Reference numeral 2 denotes a horizontal beam, which is made of a metal pipe such as a steel pipe and has a long shape having an appropriate shape such as a circular or square cross section. At both ends of the horizontal beam, mounting caps 21 are fitted. The mounting cap 21 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the horizontal beam 2, a closed end having a lid, and a plate-like body having a circular arc-shaped tip at substantially the center of the lid. Is formed. A bolt hole is formed on the center line of the mounting portion 211. The bracket 4 has a cylindrical insertion portion 41 having a diameter slightly smaller than a counterbore diameter of a counterbore hole 11 formed in a side surface of the column 1.
A lid 42 having a diameter larger than the counterbore diameter of the counterbore is formed at the base of the insertion portion 41, and a pair of projecting beam mounting portions 43 are formed opposite to each other on the opposite surface of the lid 42. . A threaded screw hole 44 is formed in one of the projecting beam mounting portions 43, and a female screw 45 is formed in the other. The female screw 45 may be screwed into the beam mounting portion 43 of the bracket 4, or a female screw member such as a nut may be attached to the beam mounting portion 43 of the bracket 4. The outer shape of the beam mounting portion 43 is formed into an appropriate shape such as a spherical body in consideration of a design surface. At the center of the lid, a bolt hole 46 is provided for fixing a bolt, and a screw hole 44 is bored in the beam mounting portion at right angles to the central axis of the bolt hole 46. The bracket 4 is manufactured by casting an aluminum alloy or a zinc alloy.
The contact surface 47 of the bracket lid 42 with the column 1 is made flat so that the bracket 4 is rotated by a predetermined angle with respect to the column 1 so that there is no gap between the bracket 4 and the column 1 even when the bracket 4 is attached. You. Next, the assembly of the guard fence of the present invention will be described. The bracket 4 is inserted into the counterbore holes 11 formed on both side surfaces of the column 1, and the bolt holes 46 of the pair of brackets 4 are provided.
, And a pair of brackets 4 is screwed to the column 1. As described above, the bracket 4 supports the support 1.
When the protective fence is installed on an inclined surface, the bracket 4 is attached to the column 1 such that the opening of the beam attachment portion 43 of the bracket 4 is vertical, and the protective fence is installed at a curve point. Attaches the bracket 4 to the column 1 such that the opening of the beam attachment portion 43 is horizontal. or,
When installing on a slope and at a curve point, use the bracket 4
If the angle of attachment is set to an appropriate angle between the above, it can be easily handled. Next, the mounting portion 211 of the mounting cap 21 mounted on the end of the horizontal beam 2 is inserted between the opposed beam mounting portions 43 formed on the bracket 4, and the bracket 4 and the mounting cap 21 are screwed. 44 is inserted and screwed. The mounting cap 21 is fitted to the end of the horizontal beam 2 as described above. However, if the horizontal beam 2 is pressed by a push screw 212 screwed into the side wall of the mounting cap 21, the mounting cap 21 is more securely attached and suitable. Is made. Further, the protective fence of the present invention is not limited to the one in which the horizontal beam 2 is erected between the above-mentioned columns 1, and the vertical bar 5 is erected between the horizontal beams 2 as shown in FIG. Is also good. Also, as shown in FIG. 6, a chain 6 may be attached to the bracket 4 of the column 1 to form a chain fence, or a chain may be attached to a part of the protective fence to form a partial chain fence. . When a column having a shape other than a square, for example, a circular cross section, is used as the column 1, an auxiliary fixture having a flat surface and a back surface having the same curvature as that of the column side wall may be laid on the bracket attachment portion of the column side wall. As described above, in the protective fence of the present invention, a counterbore is formed in the side wall, and at least the vicinity of the counterbore is made flat, and the post is provided with the fence through the bracket. There are have you to fences made is bridged, the bracket contact surface between the struts at the larger diameter than the seat Ku径of the seat Quanah is made flat, the beam attachment portions of the pair of projecting to face the surface And an insertion portion formed in a cylindrical shape slightly smaller in diameter than the counterbore diameter of the counterbore on the contact surface of the lid portion. The bracket was inserted into the hole and attached to the end of the fence.
Those when inserted between the beam attachment portions facing each formed by pivotally co, when attaching the bracket to the posts, the installation surface of the guard fence is inclined plane or curve by appropriate angular rotating the bracket It can be easily handled even at a point, and can be easily installed in a place where a slope and a curve are combined by appropriately setting the mounting angle of the bracket. Since the abutment surfaces of the bracket and the strut are each flat, even if the bracket is rotated at an appropriate angle and attached, a gap is not formed in the abutment surface, and the protective fence is suitable for a landscape. Further, since the insertion portion of the bracket is inserted into the counterbore in the side wall of the column, the bracket does not easily fall off even if a large force is applied to the bracket.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an example of an embodiment of a protective fence of the present invention. FIG. 2 is a partially cut-away detailed view of a main part of FIG. 1; FIG. 3 is a front view showing another example of the embodiment of the protective fence of the present invention. FIG. 4 is a detailed view of a main part of a partially cut-out portion of FIG. FIG. 5 is a plan view of FIG. 4; FIG. 6 is a main part detailed view showing another example of the embodiment of the protective fence of the present invention. [Description of Signs] 1 Post 11 Counterboring hole 2 Horizontal beam 21 Mounting cap 211 Mounting part 212 Push screw 3 Fence 4 Bracket 41 Insertion part 42 Cover part 43 Beam mounting part 44 Screw hole 45 Female screw 46 Bolt hole 47 Contact surface

Claims (1)

(57) [Claim 1] A counterbore is formed in a side wall, and at least a support post having a flat surface at least in the vicinity of the counterbore and a fence body is erected on the support post via a bracket. and have you the safety barrier comprising, bracket made contact surface between the struts and the flat in the larger diameter than the seat Ku径of the seat Quanah, beam attachment portions of the pair of projecting to face the surface of which is formed A lid portion and an insertion portion formed in a cylindrical shape with a diameter slightly smaller than the counterbore diameter of the counterbore hole on the contact surface of the lid portion, and the insertion portion of the bracket is inserted into the counterbore hole of the side wall of the column. Attachments formed at the ends of the fences are inserted between opposing beam attachment portions formed on the bracket.
Safety barrier, characterized in that when it is input formed by pivotally co.