JPS5852122Y2 - cushion seat - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cushion sheet with excellent thermal conductivity and cushioning properties, which is used when manufacturing decorative boards, decorative plywood, etc. using a hot press.

Conventionally, when manufacturing melamine decorative board, melamine decorative plywood, melamine decorative particle board, etc. using a hot press, a cushioning material such as paper or a rubber sheet was inserted between the hot press plate and the coal board or stainless steel board. The company was manufacturing decorative boards by correcting the distortion of the hot plate.

The cushion material in this case had the disadvantage of extremely poor thermal conductivity.

On the other hand, it is presumed that a wire mesh is used to improve thermal conductivity, but this results in significantly poor cushioning properties.

However, the present invention provides a cushion sheet that overcomes these drawbacks.

This will be explained below according to the drawings.

The cushion sheet needs to have the highest thermal conductivity and cushioning properties, and the inventor used rubber and metal as materials.

In order to improve thermal conductivity, the cushioning properties are low when using the conventional wire mesh as mentioned above, so it is necessary to twist metal wires such as copper, iron, etc. in any number as needed to make a single twisted metal object. That is, line bundle 1 is created.

It is clear that this provides better cushioning than a single wire.

Next, the wire bundle 1 is knitted into a required mesh as in the case of making a conventional wire mesh or cloth, thereby obtaining a net-like material 2 which has improved stitching properties than the wire bundle 1.

In this case, the weaving method of the net-like material is arbitrarily selected from plain weave, twill weave, satin weave, paper weave, etc.

Further, the thickness of the wire bundle 1 used here is not particularly limited, but the cushioning properties can be further improved by using thin metal wires and twisting them together in large numbers.

Furthermore, if the number of meshes in the mesh material 2 is made finer, the thermal conductivity and cushioning properties will naturally improve.

Next, since the mesh 2 has spaces, heat-resistant rubber such as silicone rubber or nitrile rubber is applied in a molten state to both sides and/or one side in order to improve thermal conductivity and cushioning properties, and then cooled. By doing so, the heat-resistant rubber is coated on the net-like material.

The amount of rubber covered in this case is arbitrarily selected depending on the usage conditions of the cushion sheet, and is not limited.

Further, if necessary, to further improve the thermal conductivity, metal powder can be mixed and applied when the heat-resistant rubber is melted.

As described above, the cushion sheet obtained by the present invention has the same excellent cushioning properties as conventional rubber sheets, and also has significantly improved thermal conductivity, which shortens the press cycle and allows for the production of decorative laminates, etc. productivity has improved.

In addition, since it is a composite of metal mesh and rubber, the cushion sheet has many industrial advantages, such as significantly improved durability.

Example A wire bundle was created by twisting three copper wires with a thickness of 0.2 mm,
Furthermore, a twill-woven net-like material was created from this wire bundle with a gap of 1 mm.

Apply molten Ginocon rubber to both sides of this mesh,
It was cooled to obtain a cushion sheet with a thickness of 3 mm.

At this time, the hardness of the silicone rubber used was 40 degrees.

[Brief explanation of drawings]

The drawing is a partially cutaway enlarged view of the cushion sheet obtained by the present invention, where 1 is a wire bundle made of twisted metal wires, 2 is a net-like material made by knitting 1 together, and 3 is heat-resistant rubber.

Claims (1)

[Scope of utility model registration request] A cushion sheet made by coating heat-resistant rubber on both and/or one side of a net-like material made by knitting together bundles of twisted metal wires.