JPH10317350A - Wooden mattress - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden mattress which can be assembled easily. SOLUTION: Two wooden bars 5b are extended over and at right angles to two parallel wooden bars 5a. At their intersections, successive holes are bored through the upper and lower wooden bars 5 (5a, 5b), and threaded cylinders having internal threads cut on their inner surfaces are stored into the holes in the upper wooden rods 5b, with collars 8 at the tops of the threaded cylinders being nailed to the wooden bars 5. Bolts are inserted into the holes in the lower wooden bars 5b from below, and the ends of the bolts are threaded into the threaded cylinders and tightened. L-shaped metal fittings 12 are attached to the intersections for reinforcement. Only rails 2 are attached to a foundation frame 1 and arranged in the bottom of a river at the front of a revetment. Next, tie bolts 17 are driven into the threaded cylinders on the four corners of the foundation frame 1, and wooden bars 19 are alternately skewered around the tie bolts 17 and are finally tightened with nuts 20 to form a fence 3. After the fence 3 is finished, stones are closely packed therein.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woodwork sediment for preventing scouring of a river bank revetment.

[0002]

2. Description of the Related Art In recent years, seawalls in harmony with the surrounding nature have been favored, rather than strength alone, and materials such as wood and cobblestone have been widely used instead of concrete. Woodwork sediment has long been known as a foundation work, but this is a frame made of wood at the bottom of the river and boulders stuffed in it, but since it is not necessary to use concrete, Recently, this woodwork sink has been reviewed.

[0003] However, in the conventional woodwork sink, logs are assembled using wires or braces, and assembling requires a lot of time and labor. In addition, the conventional woodwork sediment was constructed continuously along the river, and there was no gap for small fish and the like to enter inside, making it difficult for organisms to inhabit.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a woodwork sink which can be easily assembled. Another issue is to make the inside a habitat for small fish.

[0005]

SUMMARY OF THE INVENTION A woodwork sink according to the present invention comprises:
A box-shaped frame for packing stones, comprising a base frame, a pier fixed to the base frame at intervals, and a fence wrapped around the base frame. The base frame is formed by arranging two wooden rods parallel to each other, and arranging two wooden rods at right angles to these rods and parallel to each other to form a girder. The screw cylinder is fixed vertically, the bolt is passed upward through the lower wooden rod, and the tip is screwed and tightened to the screw cylinder. The fence is formed by setting up tie bolts at the four corners of the base frame so as to be screwed into a screw cylinder, and alternately skewing wooden rods through these tie bolts to form a cross beam in several stages (claim 1).

[0006] In this case, the stone blocks packed therein reduce the flow of water and prevent scouring of the front of the revetment. The frame consisting of the base frame and the fence serves to keep the individual stone blocks from flowing out. This woodwork sink is made of only wood and stone blocks without using concrete, so it is in harmony with the natural scenery, and when plants grow on it, there is almost no sense of discomfort with the surroundings.

[0007] When actually constructing, the foundation frames with the piers attached are arranged on the riverbed and connected to each other so as not to move. It is preferable that the base frame be made large and heavy enough to be carried by human power. Next, the tie rods are screwed into the screw cylinders, and tie rods are erected at the four corners. When the fence is completed, pack stone blocks inside. in this way,
The woodwork sink can be easily assembled on site without using a crane or the like.

In addition, this device can be installed by forming a gap between the frames, so that organisms such as fish can freely pass through the gap, and the stones can be further removed from the gap. It can also be entrapped between stone blocks and stones, providing a good habitat for living things such as fish.

In this apparatus, a screw cylinder is fixed to a wooden rod on the upper side of the base frame, and a bolt is screwed from below to fix the upper and lower wooden rods to each other. Since the stand is screwed up, the structure is extremely simple and the required strength can be obtained.

[0010] Note that at the intersection of the wooden rods above and below the base frame, L
It is preferable to reinforce by attaching a metal fitting (claim 2). The base frame is easily deformed into a rhombus, but this can be prevented by attaching an L-shaped bracket. It is also possible to connect adjacent base frames using this metal fitting.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a frame of a woodwork sink, wherein reference numeral 1 denotes a base frame made up of four wooden rods having square cross sections, and reference numeral 2 denotes a base frame provided with a space therebetween. The fixed pier, symbol 3 is a fence wrapped around the foundation frame. The base frame 1 passes the two wooden rods 5b at right angles on the two wooden rods 5a parallel to each other, and connects the intersections to each other. As shown in FIG. 2 and FIG. 3, the structure of the crossing portion has holes 6a and 6b continuous with each other in the upper and lower wooden rods 5, and a female screw is formed on the inner surface of the hole 6b of the upper wooden rod 5b. The screw cylinder 7 is put in, and the collar 8 on the upper part of the screw cylinder is fixed to the wooden rod with the nail 9. A bolt 10 is inserted into the hole 6a of the lower wooden rod 5a from below, and the tip of the bolt is screwed into the screw cylinder 7 and tightened. With this alone, the base frame is likely to be deformed into a rhombus, and as shown in FIG. 4, an L-shaped fitting 12 is attached to the intersection to reinforce.
The crosspiece 2 is passed between the lower wooden rods 5a and the wooden rods 5a, and is nailed.

With only the piers 2 attached to the foundation frame 1 in this manner, they are arranged on the riverbed in front of the revetment. The base frame is made to be about 1.8m on one side. With such a size, it can be carried only by human power. The foundation frames are
The holes 13 formed in the L-shaped bracket 12 are connected by shackles 15 or the like (FIG. 5). Once the base frame has been set up,
As shown in FIG. 3, tie bolts 17 are screwed into the screw cylinders 7 at the four corners to stand up. As shown in FIG. 1, the wooden rods 19 are alternately skewed one by one through these tie bolts 17 and finally tightened with nuts 20 to form the fence 3.

When the fence is formed, as shown in FIG. 5, a stone block (cobblestone) 21 is tightly packed therein. The stone block is selected to have a size that does not go outside through the gap between the pier and the fence, for example, a diameter of 15 cm or more.

FIG. 5 is a cross-sectional view of the installed woodwork sink, and as can be seen, a gap 22 can be formed between the frames. Creatures such as fish can pass freely through the gaps, and can be further entrapped between stone blocks, thereby providing a good habitat for fish and the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cut-out part of a woodwork sink.

FIG. 2 is a perspective view of a main part showing an assembled state of a base frame.

FIG. 3 is a sectional view of a main part of a foundation frame.

FIG. 4 is a perspective view of a main part of a base frame.

FIG. 5 is a cross-sectional view of a woodwork sink installed on a riverbed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base frame 2 pier 3 fence 5 a wooden rod 5 b wooden rod 6 a hole 6 b hole 7 screw cylinder 10 bolt 12 L-shaped bracket 17 tie bolt 19 wooden rod 21 stone block

Claims (2)

[Claims] 1. A box-shaped frame for packing stones, comprising a base frame, a pier fixedly spaced from the base frame, and a fence wrapped around the base frame; The base frame is formed by placing two parallel wooden rods on two parallel wooden rods at right angles to these to form a girder, and screwing them vertically to the upper wooden rod at the intersection of these wooden rods. The tube is fixed and bolted upward through the lower wooden rod and screwed into the screw tube; the fences are screwed into the screw tube at the four corners of the base frame. Woodwork sinks consisting of standing tie bolts, and alternately skewing wooden rods through these tie bolts to form a girder in several stages. 2. The woodwork sink according to claim 1, wherein an L-shaped fitting is attached to an intersection of the upper and lower wooden rods forming the base frame to reinforce the woodwork.