JP3206730U - Front-type fake wooden fence - Google Patents

Abstract

A front-type pseudo-wood fence that can easily adjust the angle of the lattice unit without impairing the appearance of the lattice unit. A front-type pseudo-timber fence having a lattice unit composed of a pair of upper and lower crossbars 21 and a plurality of vertical trees 22, with a pair of contact plates 23 and 24 interposed between the opposing surfaces of the crossbars 21 and 22. Thus, the rotational resistance was reduced, and a core rod driving type connection anchor 30 inserted from the side of the vertical tree 22 into the intersection of the horizontal bar 21 and the vertical tree 22 was caulked and pivoted. [Selection] Figure 2

Description

  The present invention relates to a front type pseudo-wood fence provided with a lattice unit pivotally supported by crossing a plurality of vertical trees between upper and lower crossbars.

Artificial wooden fences in which the surface of a cylindrical core material is covered with a synthetic resin with a bark pattern are well-known and are installed on promenades and parks.
Patent Document 1 discloses a front-type pseudo-wood fence provided with a grid unit that can be installed on an inclined ground.
A conventional lattice unit includes upper and lower crossbars that are horizontally mounted on adjacent columns, and a plurality of vertical trees that are installed to cross between the upper and lower crossbars. The lattice unit is held by cylindrical mounting brackets provided at both ends of each crosspiece on the support column.
Each crossing part of the crosspiece and the vertical tree is pivotally supported via a through bolt and a nut.

JP 2000-282718 A

A conventional lattice unit of a front-type pseudo tree fence has the following problems.
<1> In manufacturing the lattice unit, it is necessary to tighten and tighten the through bolts from the viewpoint of preventing corrosion due to inundation from the intersection. However, if the tightening force by the through bolt increases, the rotational resistance at the intersection increases. As a result, the entire lattice unit is difficult to be deformed, and much time and labor are required for the angle adjustment work of the lattice unit.
For example, if a grid unit is manufactured by connecting the intersections of nine vertical trees to a crosspiece with a total length of 2 m with through bolts, the total of the 18 rotational resistances that are rigidly connected to deform the grid unit. A large external force exceeding is required.
<2> The crossing bolts had to be tightened strongly at the intersections of the cross and the vertical tree until the respective resin coating layers of the cross and the vertical tree bite into each other.
Therefore, if the lattice unit is forcibly deformed, the resin coating layers that have bitten into each other are torn off and are easily damaged.
<3> The metallic bolt heads and nuts exposed on the surfaces of the cross and the vertical tree not only detract from the appearance of the fake wooden fence, but the through bolts and nuts become projections and are dangerous, and the feel of the horizontal and vertical trees It is a cause of worsening the feeling.
<4> Since the through bolts and nuts exposed to the outside can be easily removed with a hand tool such as a spanner, the lattice unit may be stolen.

  The present invention has been made in view of the above points. The purpose of the present invention is to provide a front-type artificial wooden fence that is excellent in manufacturability and can easily adjust the angle of the lattice unit without deteriorating the appearance of the lattice unit. There is to do.

The present invention is a front-type pseudo-wood fence provided with a lattice unit composed of a pair of rungs that are installed between the upper and lower parts of adjacent columns and a plurality of vertical trees that are pivotally supported by crossing the rungs. In addition, through the through hole formed in the vertical tree and the insertion hole formed in the horizontal bar, the vertical bar and the vertical tree are connected by a core rod driving type connecting anchor inserted from the vertical tree side into the intersection of the horizontal bar and the vertical tree. A crossing portion of the tree is pivotally supported, and a free end of the core rod driving type connecting anchor is caulked and fixed in the cross.
In another embodiment of the present invention, a contact plate is interposed between the crossing surfaces of the crossing and vertical trees.
In another form of the present invention, a recess capable of accommodating the head of a core rod driving type connecting anchor is formed on the inlet side of the through hole of the vertical tree.

The present invention can obtain at least the following effects.
<1> The lattice unit can be easily manufactured in a short time by a simple operation of pivoting the crossing portion of the crosspiece and the vertical tree by a core rod driving type connecting anchor.
<2> By placing the abutment plate between the crossing crossing bars and the vertical surfaces, the pivoting resistance of the crossing part of the crossing and vertical bars is reduced, and the angle of the lattice unit can be adjusted with a small external force. It can be performed easily and accurately, and the outer surfaces of the crosspieces and vertical trees do not come into direct contact, so when the crosspieces and vertical trees are rotated to deform the lattice unit, the resin coating layer on the surface of the crosspieces and vertical trees Can be prevented from being damaged.
<3> Since the free end of the core rod driving type connecting anchor is hidden inside the cross, the connecting anchor is not exposed on the surface of the cross, and the head of the connecting anchor is hidden in the surface layer of the vertical tree so that the projection is Since it does not occur, the appearance is remarkably improved.
<4> The crossing portion of the cross and the vertical tree is connected by caulking with a connection anchor.
Therefore, it is difficult to release the connection between the cross and the vertical tree, and the antitheft effect of the lattice unit is enhanced.

It is explanatory drawing of the front type artificial wooden fence which concerns on this invention, The side view which looked at the front type artificial wooden fence installed in the sloping ground from the back side (non-passage side) Assembly perspective view of crossing section of crossbar and vertical tree constituting lattice unit Sectional view of III-III in Fig. 1

  The present invention will be described below with reference to the drawings.

<1> Outline of Front Type Fake Wooden Fence Referring to FIG. 1, the front type pseudo wooden fence of the present invention has a plurality of support columns 10 erected at a predetermined interval and a side of an adjacent support column 10 on one side. And a lattice unit 20 that can be adjusted in angle.

<2> Lattice Unit The lattice unit 20 includes two vertical bars 21 and 21, and a plurality of vertical trees 22 that are installed to cross the horizontal bars 21 and 21.
Cylindrical joint fittings 11 are rotatably attached to the upper and lower portions of the column 10 by pivot bolts 12, and the lattice unit 20 is supported by fitting both ends of upper and lower cross bars 21 into the fitting fittings 11. Has been.

<3> Supporting structure of crossbar and vertical tree Referring to FIGS. 2 and 3, a pair of core anchor driving type connection anchors 30 and both trees 21, 22 are interposed to form a pair of disks. The crossing part of the crosspiece 21 and the vertical board 22 is pivotally supported using this board 23,24.

<3.1> Crossbars and Longitudinal Trees Crossbars 21 and 22 are known hollow pillars having a circular cross-sectional shape in which the surfaces of core tubes 21a and 22a are covered with bark-patterned coatings 21b and 22b as shown in FIG. It is.
The core tubes 21a and 22a are hard pipes such as steel tubes, aluminum tubes, resin tubes, and paper tubes, and the coatings 21b and 22b include hard resins, soft resins, concrete, and the like.
In some cases, the vertical wood 22 is made of only hard resin.
A through hole 22c that can penetrate the connection anchor 30 is formed in the upper and lower portions of the vertical tree 22, and a non-penetration type insertion hole 21c that can insert a free end of the connection anchor 30 in the side surface of the cross board 21. Has been established.

<3.2> Connecting Anchor A core rod driving type connecting anchor 30 is a known core rod driving caulking type anchor including a cylindrical anchor main body 31 and a core bar 32 inserted in the center of the anchor main body 31. Can be used.
The connecting anchor 30 has a structure in which a plurality of slits are formed along the axial direction in the free end portion of the anchor body 31 and the free end side of the anchor body 31 is expanded by driving the core rod 32 with a hammer or the like. If available, it can be used.

<3.3> Abutment Plates Opposite surfaces of the crosspieces 21 and 22 are provided with contact plates 23 and 24 on the same axis as the insertion holes 21c and the through holes 22c. It has a structure that does not touch.
The plates 23 and 24 are disk-shaped hard plates and are formed of a hard material such as steel, stainless steel, or resin.
The reason why the contact plates 23 and 24 are used is to reduce the rotational resistance at the pivotal support portions of the crosspieces 21 and 22.
In this example, a description will be given of a form in which the contact plates 23 and 24 are accommodated in recesses formed by recessing the respective coatings 21b and 22b. However, the contact plates 23 and 24 are provided on the surfaces of the coatings 21b and 22b without providing recesses. You may arrange | position directly.

[Lattice unit manufacturing method]
A method for manufacturing the lattice unit 20 will be described with reference to FIGS.

<1> Interposal of this board The vertical tree 22 is arrange | positioned at predetermined intervals between the two horizontal bars 21 and 21 arrange | positioned in parallel mutually. At this time, a pair of contact plates 23 and 24 are interposed between the facing surfaces of the crossbar 21 and the vertical tree 22.

<2> Insertion set of connection anchor The connection anchor 30 is inserted from the vertical tree 22 side through the through hole 22c, and the free end of the anchor body 31 through which the pair of contact plates 23 and 24 are inserted is guided to the inside of the crosspiece 21. .

<3> Driving the core rod With the head 33 of the anchor main body 31 in contact with the entrance side of the through hole 22c of the vertical wood 22, the core rod 32 is driven with a hammer or the like.
As the core bar 32 is driven, the free end of the anchor main body 31 located inside the crosspiece 21 is expanded, and caulked between the head 33 and the expanded portion of the anchor main body 31 between the crosspiece 21 and the vertical tree 22. Are connected.
In this way, with the simple operation of inserting the connecting anchor 30 and finally driving the core rod 32 while interposing the pair of contact plates 23 and 24 at each crossing portion of the cross 21 and the cross 22, the cross 21 and the vertical tree 22 can be firmly connected.
Note that the lattice unit 20 can be manufactured in the field as well as in a factory equipped with manufacturing facilities.

<4> Appearance of Lattice Unit In the lattice unit 20 manufactured as described above, the free end of the anchor body 31 is hidden inside the crosspiece 21, so that the connecting anchor 30 is not exposed on the surface of the crosspiece 21. Further, if the concave portion 22d is formed in the coating 22b on the entrance side of the through hole 22c of the vertical tree 22, the head 33 and the core bar 32 of the anchor main body 31 are hidden, and a projection is also generated on the surface side of the vertical tree 22. Because it does not have a good appearance, it does not feel strange even if you touch it with your hand.

<5> Adjusting the angle of the lattice unit The crossing portions 23 and 24 of the crosspieces 21 and 22 constituting the lattice unit 20 are interposed so that the pivotal portions of the crosspieces 21 and 22 are supported. The rotational resistance is small.
Therefore, the grid unit 20 can be easily deformed with a small external force, and the angle of the grid unit 20 can be easily finely adjusted in accordance with the inclined ground.

[Other embodiments]
Although the above description has been given of the form in which the pair of hitting plates 23 and 24 are interposed at the crossing portion of the crosspiece 21 and the vertical tree 22, one hitting plate may be provided at the crossing portion of the crosspiece 21 and the vertical crossing 22. It is possible, and there is a case where this plate is omitted.

10 ································································································································································ ···· Coat 21c ········································································································. Through-holes 22d ··· concave portions 23, 24 of the vertical wood ··· plate 30 ··· connection anchor 31 ··· anchor body 32 ··· core rod 33 ··· anchor Head 46 of the main body ... Nut

Claims (3)

It is a front type pseudo-wood fence equipped with a lattice unit consisting of a pair of crossbars having a hollow structure laid horizontally between the upper and lower parts of adjacent columns and a plurality of vertical trees that are pivotally supported by crossing the crossbars. And
The crossbar and the vertical tree are connected to each other through a through hole formed in the vertical tree and an insertion hole formed in the horizontal bar. The intersection is pivotably supported,
The free end of the core rod driving type connecting anchor is caulked and fixed in a cross,
Front-type fake wooden fence.   The front-type pseudo-tree fence according to claim 1, wherein a contact plate is interposed between the crossing surfaces of the crossing and vertical trees.   The front-type pseudo-wood fence according to claim 1 or 2, wherein a concave portion capable of accommodating a head of a connecting anchor driven by a core rod is formed on an entrance side of the through hole of the vertical wood.

Images