JP4242239B2 - Frame that absorbs thermal expansion - Google Patents

Description

The present invention belongs to a technique for absorbing thermal expansion when laying a frame for block pavement, lawn protection, and gravel protection.

This is a plastic frame. After placing the stone, wood, rubber, etc., which is the stepping pressure part in the frame, or laying the frame, pour concrete or mortar into the stepping pressure part. Various block pavements are proposed and implemented. Alternatively, there is a lawn protective material or a gravel protective material in which a plastic frame serves as a stepping pressure portion and turf, gravel, etc. are arranged around it.
The block paving blocks disclosed in JP-A-2001-51, 2001-3305, etc. are constructed by laying a frame body divided into a treading pressure part and a water permeable part, and the stepping pressure part is fitted with the block, or concrete or mortar is used. Poured into a stepping pressure part, and has a structure that allows rainwater to penetrate into the ground from the water-permeable part.
The lawn protective material disclosed in JP-A-11-313560, 11-220960, etc. is a frame body partitioned in a lattice shape, and is provided with a step pressure portion at each intersection, and from the water-permeable portion corresponding to the eyes of the lattice to the grass It grows so that no stepping pressure is directly applied to the turf, and at the same time, rainwater penetrates into the basement from this part and, at the same time, grows green such as lawn in the permeable part. In JP-A-7-227154, the water permeable part is filled with gravel, and the lawn is cultivated from between the gravel, and the gravel is prevented from escaping by the lattice.
When these frames were laid over a wide area, especially when they were laid in winter, there was a possibility that the frames would expand at high temperatures in summer and cause distortion.
JP 2001-51 JP-A-11-220960 JP 11-313560 JP-A-11-220960

This invention is providing the means to absorb the thermal expansion of the frame body laid in a wide area | region.

The first invention of the present invention is a frame body that has an outer peripheral side surface and is connected and laid using a joint provided on the side surface, and has elasticity that is substantially parallel to the side surface of the frame body along the side surface. It is a frame body that absorbs thermal expansion, characterized by providing a tongue-shaped portion having the tongue-shaped portion and connecting the frame body so that the tongue-shaped portion and the side surface or the tongue-shaped portion are in contact with each other .

When laying and contacting the frame, the tongues that have elasticity on the surfaces that are in contact with each other are provided so as to face the surface and leave a gap, so that when the frame expands, the elasticity and gaps of the tongue Absorbs its expansion.

Hereinafter, the first invention will be described in more detail with reference to the drawings.
FIG. 1 shows an example of the shape of a frame body to which the present invention is applied and a tongue-shaped portion that absorbs thermal expansion.
FIG. 2 is an enlarged view of a circled portion of FIG.
As shown in FIG. 1, the outer frame is divided into four frames, and wooden, stone, or rubber blocks are fitted into each of the frames to form a stepping pressure portion. On the side surface of the frame body, plate-like tongue-shaped portions are provided on two sides that are in parallel with the side surface. This tongue-like portion prevents the frames from coming into close contact with each other when the frames are laid by its elasticity, leaving a slight gap between the frames.

The shape of the plate-like tongue-like portion may be a flat plate provided parallel to the side surface of the frame plate as shown in FIG. 2, or may be a corrugated plate. The object of the present invention can be achieved if the frames are not in direct contact with each other and the expansion can be absorbed when the frames try to contact each other by expansion.

In FIG. 1 and FIG. 3, the tongue-like portions are provided only on the two side surfaces intersecting each other of the frame, but may be provided on each side as shown in FIG. 4. By providing it on all surfaces, the amount of thermal expansion absorbed is double that provided on two sides.
Further, a plate-like tongue-like portion may be provided in the vertical direction with respect to the side surface as shown in FIG.

FIG. 5 shows an example in which the shape of the frame is not rectangular but is adapted to an H-shaped frame. As shown in FIG. 8, a tongue-like portion can be provided at an appropriate position in accordance with the arrangement method.

The plate-like tongue-like portion can also be applied to the following frame.
The frame is divided into a grid, and the intersection of the grid or the grid is used as a stepping pressure part, and the grid is used as a water permeable part. It is suitable for the frame to be connected.
As shown in FIG. 6, a tubular portion that is a female joint is provided on two sides that contact each other, and a male joint that engages with the tubular portion is provided on the other two sides.
FIG. 7 shows a cross section of the male-female joint.
As shown in the figure, a tongue-shaped portion is provided inside the tubular portion, and a gap between the tongue-shaped portion and the tubular portion tube wall absorbs thermal expansion. The same is true even if the tongue is provided around the male joint.

FIG. 8 shows different arrangement states of the H-shaped frame shown in FIG. FIG. 8a shows a state in which the frame body is arranged in close contact with no gap, and FIG. 8b shows an arrangement in which a stepping pressure part is provided outside the frame body or a water permeable part is provided outside the frame body. Shows the configuration. A tongue-like member for absorbing thermal expansion can be provided according to the arrangement state.

The stepping pressure portion of the frame body is appropriately fitted with a wooden brick, stone, rubber material or the like that matches the shape of the stepping pressure portion, or mortar or concrete is poured to form a brick, or gravel is filled.
Wooden bricks, rubber materials, stones, and the like that match the shape of the stepping pressure portion may be held by a spring provided on the frame portion, and can be fixed with an appropriate adhesive. Existing methods can be used as appropriate.

The material of the frame is preferably a thermoplastic resin such as injection-moldable polypropylene or polyethylene, or a metal such as stainless steel.

FIG. 5 is a conceptual diagram showing positions of a frame body and a heat absorption unit in a first example to which the present invention is applied. These are the enlarged views which show the shape of the heat absorption part of this invention. FIG. 5 is a conceptual diagram showing another shape of the frame and the heat absorption part of the first example to which the present invention is applied. These are the conceptual diagrams which show the position of the frame and heat absorption part of the 2nd example to which this invention is applied. These are the conceptual diagrams which show the shape of the frame of the 3rd example to which this invention is applied. These are the conceptual diagrams which show the shape of the frame of the 4th example to which this invention is applied. These are the conceptual diagrams which show the shape of the absorption part applied to the frame of the 4th example to which this invention is applied. These are figures which show the arrangement | positioning state of the frame of the shape of the 3rd example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Treading pressure part 3 Tongue-like member 4 Water-permeable part 5 Male joint 6 Male joint

Claims (1)

A frame body that has an outer peripheral side surface and is connected and laid using a joint provided on the side surface, and is provided with a tongue-like portion having elasticity substantially parallel to the side surface on the side surface of the frame body, A frame that absorbs thermal expansion , wherein the frame is connected so that the tongue and the side surface or the tongue are in contact with each other .

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