JP3054101U - Paving wood block - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a paving wooden block that is easy to construct and hardly damages a wooden board. A plurality of wooden boards are arranged and fixed on a concrete board. The board | substrate 2 is shape | molded by water-permeable concrete so that rainwater may permeate below. The wooden board 3 is made of natural wood, for example, cedar or pine, which is preserved. In order to hold each of the wooden boards 3 on the board, an anchor portion 5 extending downward is integrally formed on the back surface of the wooden board. The anchor part 5 is
It consists of a protrusion with a trapezoidal cross section (the lower side is widened) provided along the longitudinal direction. A gap 6 is provided between the adjacent wooden boards 3 without being brought into close contact with each other.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This device is a pavement block in which wood is stretched on the surface of a concrete substrate.

[0002]

[Prior art]

 Conventionally, when paving sidewalks, plazas, approaches, etc. with natural wooden boards, the concrete was beaten and the wooden boards were fixed on top. Such a conventional method has many drawbacks, and is difficult to perform. In addition, there is a drawback that the wooden board is easily deformed and rot because of poor drainage.

[0003]

[Problems to be solved by the invention]

 This invention provides a pavement wooden block that is easy to construct and does not easily damage the wooden board.

[0004]

[Means for Solving the Problems]

 A plurality of wooden boards are fixed on a concrete board. The concrete board is made of permeable concrete to allow rainwater to pass through. There is a gap between the wooden boards. With such a configuration, rainwater falls on the water-permeable concrete substrate from between the wooden boards and passes through the board, so that there is no accumulation. For this reason, there is an effect that the wooden board is not deformed due to water absorption and corrosion is less. Construction can be done simply by laying blocks on the ground.

If a divergent anchor portion is provided on the lower surface of the wooden board and is embedded in a concrete board, the wooden board is less likely to be peeled off from the board, and a net or the like is provided on the back face of the wooden board as in the conventional case. Since there is no need for extra work, manufacturing costs can be reduced.

[0006]

[Embodiment of the invention]

 As shown in FIG. 1, the pavement block 1 has several wooden boards 3 arranged and fixed on a concrete substrate 2 and is about 50 cm square. The substrate 2 is formed of permeable concrete so that rainwater can permeate below. The wooden board 3 is made of natural wood, for example, cedar or pine, which is preservatively used.

In order to hold each of the wooden boards 3 on the substrate, an anchor portion 5 extending downward is integrally formed on the back surface of the wooden board. The anchor portion 5 is formed by a protrusion of a trapezoidal section (the lower side is widened) provided along the longitudinal direction (FIG. 2). The adjacent wooden boards 3 are not brought into close contact with each other, and a gap is provided between them. Here, a gap of 3 mm is provided.

When manufacturing, as shown in FIG. 3, a square dish-shaped molding frame 7 is used. A partition 9 is provided in the frame in a lattice shape. The wooden board 3 is turned upside down in each section of the partition, and the concrete 10 is packed thereon. Each section of the partition 9 is sized to fit the wooden board 3 exactly, and the height of the partition 9 is the same as the height of the wooden board 3 (excluding the anchor part 5).

[0009] The concrete 10 is made by kneading cement and gravel with a little water, and does not contain sand. Since sand is not used in this way, when hardened, nests are formed between the gravels and the substrate 2 having water permeability is obtained. Gravel size is about 5-13mm. When the concrete 10 is packed in the molding frame 7, pressurization is performed for about 10 seconds while applying vibration. It is completed when the mold is removed and cured for one day. At the time of molding, the partition 9 is inserted between the wooden boards 3 so that the concrete 10 does not invade, and when the mold is removed, a gap 6 can be formed between the wooden boards.

At the time of construction, as shown in FIG. 4, crushed stones 11 are laid on the ground and are compacted flat. The sand 12 is laid thereon, and the paving blocks 1 are laid. Leave about 5 mm between blocks 1. In the pavement thus formed, the rainwater falls on the concrete through the gaps 6 between the wooden boards and flows down on it or permeates through the permeable concrete. In this way, the well-drained tree keeps the tree dry and does not deform or rot.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wooden block.

FIG. 2 is a perspective view of a wooden board.

FIG. 3 is a cross-sectional view illustrating a manufacturing process of the wooden block.

FIG. 4 is a sectional view showing a construction state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pavement block 2 Concrete board 3 Wood board 5 Anchor part 6 Void

Claims (2)

[Utility model registration claims] 1. A pavement comprising a concrete board and a plurality of wood boards fixed thereon, wherein the concrete board is formed of permeable concrete so that rainwater permeates, and a gap is provided between the wood board and the wood board. Wooden block. 2. The paving wooden block according to claim 1, wherein a downwardly extending anchor portion embedded in the concrete substrate is integrally provided on a back surface of the wooden board.