JPH0632345Y2 - Veneer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a decorative board used for stair step boards, floor boards, wall boards, door panels of furniture, and the like.

[Prior Art] Conventionally, in this type of decorative board, a wood-made decorative tape is attached to the wood-mouthed part of the wood-based substrate, or a hot-melt resin is used to bond the wood-made decorative wood. Not only was it difficult to finish, but it was also difficult to make the wood finish beautiful. For this reason, the present inventor tried to apply a soft synthetic resin mold to the ostium of the wooden substrate, inject the synthetic resin into the mold, and cure it to make up the ostium.

[Problems to be Solved by the Invention] However, as shown in FIG. 3, the decorative plate manufactured by the above method has a step at the joint 23 between the wooden substrate 21 and the synthetic resin mouthpiece 22. However, the step was very noticeable and there was an aesthetic problem.

This step is caused when the synthetic resin is injected, because the soft synthetic resin mold is deformed when the synthetic resin is pressed from above and below through the pressing plates so that the synthetic resin does not leak, and the injected synthetic resin is hardened. It is thought to occur because when it does, it contracts.

[Means for Solving the Problem] The present invention solves the above-mentioned drawbacks, that is, in a decorative board in which a synthetic resin wood mouthpiece is attached to the front edge of a wooden board, the front edge of the wooden board is above the front edge. The present invention relates to a decorative plate in which a chamfered edge is formed at a corner portion and an upper edge of a synthetic resin wood mouthpiece is abutted on the chamfered edge.

In the present invention, the term "wooden substrate" refers to plywood, laminated plywood, laminated wood, particle board, etc., and includes those having a name wood veneer or a vinyl chloride sheet attached to the surface thereof, or those having been painted. Further, the synthetic resin-made mouthpiece is preferably a room temperature curable resin such as a urethane-based resin, but is not limited to this.

[Embodiment] An embodiment of the present invention will be described in detail with respect to a stair tread.

FIG. 1 is a side cross-sectional view of a stair tread, which comprises a wooden substrate 1 and a synthetic resin nosing member 2. The wooden substrate 1 is made by adhering a decorative plywood 4 attached to a single grain wood plate on both sides of a particle board 3, and a protrusion 5 is formed at the front edge thereof. A chamfered edge 6 is formed at the upper corner of the front edge of the wooden substrate 1, and the upper edge of the nosing member 2 is in contact with this chamfered edge 6. The thickness T of the tip end of the nose 2 is slightly thicker than the thickness t of the substrate 1, and the surface thereof is provided with the unevenness 7 for preventing slippage. The chamfered edge 6
May be applied to the surface of the wooden substrate 1 in advance.

Next, a method for manufacturing the stair step plate will be described. In FIG. 2, a soft synthetic resin mold 8 is provided at the mouth of the wooden substrate 1.
Be crowned. The synthetic resin mold 8 is provided with a void for forming the step nose 2 of the stair tread and a void for covering the front edge of the substrate 1 with the wooden substrate. After the front end portion of 1 is fitted, the synthetic resin mold 8 is pressed by the synthetic resin injection holes 10 provided in the synthetic resin mold 8 while pressing the pressing plates 9 against the upper and lower surfaces of the synthetic resin mold 8. Infuse at 1-10 kg / cm ² for a few seconds to a few minutes. As the synthetic resin, a room temperature curing type urethane resin is generally used.
The synthetic resin mold 8 is removed 1 to 30 minutes after the injection,
At this time, since the synthetic resin mold 8 is soft, the synthetic resin mold 8 is expanded in the vertical direction and forced out.

[Advantages of the Invention] In this invention, since the chamfered edge is provided in advance on the wooden substrate at the joint between the wooden substrate and the synthetic resin-made decorative material, the wooden substrate and the synthetic resin-made decorative material are provided. It absorbs the step created at the seam, and even if the chamfered edge is visible, it does not hinder the appearance.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a side sectional view of a stair tread, FIG. 2 is a sectional view of a wooden substrate covered with a synthetic resin mold, and FIG. It is a sectional side view of the conventional stair tread. In the drawings, 1 is a wooden board made of stairs, 2 is a nosing part made of synthetic resin, and 6 is a chamfered edge.

Claims (2)

[Scope of utility model registration request] 1. A decorative plate having a synthetic resin wood mouthpiece attached to the front edge of a wooden board, wherein a chamfered edge is formed at an upper corner of the front edge of the wooden board, and the chamfered edge is in the middle of the chamfered edge. A decorative plate made by abutting the upper edge of the synthetic resin wood butt. 2. The decorative board according to claim 1, wherein the thickness of the synthetic resin wood mouthpiece becomes thicker toward the tip, and the tip of the upper surface of the synthetic resin wood mouthpiece is slightly higher than the upper surface of the wooden substrate.