JPS5831941Y2 - Decorative treads for stairs - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a decorative tread board used for stairs.

FIGS. 1 and 2 are a perspective view and a side view of a main part of a conventional decorative tier board.

In Figure 1, a decorative material 3 made of a relatively thick (thickness L) and hard timber is adhered to the front end surface 11 of a core material 1 made of a relatively soft low-grade material such as laminated board, lumber core, plywood, etc. , which shows a decorative step board V1 constructed by fixing a decorative veneer 2 to the upper surface of a core material 1 and further providing an anti-slip groove 4 on the upper surface of the decorative material 3, where the thickness L of the decorative material 3 is, for example, 20～
Since it is as large as 30rIr1n, wear and damage to the nosing 31 and its vicinity can be reduced, but a large amount of expensive timber must be used, which increases costs, which is problematic in terms of cost.

FIG. 2 shows a decorative material 7 having a relatively thin thickness t on the front end surface 61.
A decorative tier board V in which a decorative veneer 5 is fixed to a core material 6 to which is adhered
2, and since the thickness t of the decorative material 7 is relatively small (for example, 1.5 to 3.0 rrrIn), the cost disadvantages of the decorative step board v1 can be overcome. , wear of the nosing 51 and its vicinity;
The problem is that the damage is severe, especially the surface side of the nosing 51 is worn out, and the core material 6 is exposed.Moreover, if an attempt is made to form a non-slip groove, the core material 6 will be exposed and it will be unsightly, so it is not necessary to provide it. The disadvantage is that it cannot be done.

Therefore, in view of the above-mentioned drawbacks, the present invention provides an easy-to-manufacture and inexpensive decorative stair tread that can effectively protect the stair nosing and its vicinity, which are subject to the most wear and tear, and can prevent slipping accidents when going up and down stairs. It is intended to.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a decorative tier board W2 of the present invention, which is formed into a flat plate shape from precious wood such as oak, pine, zelkova, teak, etc. on the upper surface of the core material 14 and at a position near the front on the front end surface 141 side. At the same time, a relatively high-grade decorative material 15 is bonded to the core material 1.
4 and the rear end surface of the upper decorative material 15, a flat plate-shaped filling plate 16 is bonded to the upper surface of the upper decorative material 15 so that its upper surface is almost the same as the upper surface of the upper decorative material 15.
A top decorative veneer 18 made of the same material as the upper decorative material 15 is adhered to the upper surfaces of the upper decorative material 15 and the filling board 16, and Unbalance of the core material 14 due to adhesion of the upper surface decorative veneer 18, that is, warping or misalignment of the core material 14 due to adhesion of the decorative material 15, filler board 16, and decorative veneer 18 only on one side of the core material 14. A balance flat plate 20 is bonded to the lower surface of the core material 14 to prevent this.

Then, a flat plate-shaped decorative material 17 made of the same material as the upper decorative material 15 is connected so that its front surface is substantially flush with the front end surface of the decorative veneer 18, and the lower surface of the front end side of the decorative veneer 18 and the upper decorative material Front end surface 151 of the material 15 and front end surface 14 of the core material 14
1 and the front end surfaces of the balance plate 20, respectively, and an anti-slip groove 19 is formed in the direction along the nosing across the upper decorative veneer 18 and the upper decorative material 15.

The core material 14 is composed of the decorative material 17 and the upper decorative veneer 1.
8, and the core material 14 is not visible from the ascending and descending part of the stairs, so it is possible to select inexpensive and low-grade materials as long as they have the necessary strength, such as plywood, particle board, lumber core, LVL, laminated board, etc. can be used.

Further, as the filling board 16 and the balance plate 20, plywood, veneer, particle board, hardboard, etc. are used.

When the step board having the above structure is used for a strip staircase, the lower surface 32 of the balance board 20 is colored and painted, the flat board 20 is made of the same material as the upper decorative material 15, and furthermore, both wood ends are Or pasting decorative veneer on the back end of the wood,
It can be colored, but when used for regular indoor stairs, etc.
A decorative veneer made of the same material as the upper decorative material 15 may be applied to the facing portions on the front side of both ends, or a decorative material such as coloring may be applied.

According to the tiered board having the above configuration, as mentioned above, the core material 14 and the filler board 16 can be made of relatively low-grade materials;
By making the tread itself a combination of only flat plate materials, it is possible to obtain a tread that gives the image of precious wood at a low cost and with ease. The area is effectively protected by decorative material 15° 17 and decorative veneer 18 made of the same material,
The core material 14 can be prevented from being exposed, and the decorative material 15 and the decorative veneer 18 can be prevented from being exposed, especially on the upper surface of the front side of the tiers.
Since they are overlapped, the anti-slip groove 19 can be formed deeply at that location, which is not only safe, but also allows the decorative veneer 18 to be made thinner, thereby reducing costs.

Furthermore, the effect of the balance plate 20 can effectively prevent warping and misalignment caused by adhesion of the tier plate metal bodies, and by adhering a single piece of decorative veneer 18 to the upper surface of the tier plate, warpage that may occur at the tier nosing as it goes up and down can be prevented. It is possible to prevent the upper end side of the front decorative material 17 from peeling off due to shear center force, and when the button is placed on the front of the step board, only the joining line between the front facing decorative material 17 and the top decorative veneer 18 is visible, so it is extremely easy to use. It has the effect of improving appearance.

As in the above configuration, the upper and front decorative materials 15 and 17 and the upper decorative veneer 18 are made of the same relatively high-grade material, making it possible to obtain tiered boards that give the impression of precious wood at a low cost, and also to prevent slipping. In order to form the groove 19 deeply, structures shown in FIGS. 4 and 5 may also be considered.

That is, the decorative tier board W1 shown in FIG. Upper decorative material 10 formed into a flat plate shape from precious wood such as teak having a length of
is inserted into the stepped portion 9 and bonded, and the decorative material 1
A flat decorative material 11 made of the same material as 0 is adhered to the front end surfaces 81, 101 of the core material 8 and the upper decorative material 10, and is made of the same material as the upper decorative material 10 and has the same length and length as the core material 8. A decorative veneer 12 having a width i, 1+z1 is adhered to the upper surfaces of the core material 8 and the decorative material 10.11, and an anti-slip groove 13 is formed along the nosing 121 across the decorative veneer 12 and the decorative material 10.
The lower surface 31 is provided with makeup as appropriate.

Further, in the decorative board W3 shown in FIG. 5, a decorative material 22 is bonded to the front end surface of a core material 21, and a stepped portion is formed on the upper surface of the core material 21 and at a position near the front part. A decorative material 23 made of the same material as that of the decorative material 22 is fitted into the stepped portion with its upper surface side protruding beyond the upper surface of the core material 22 and bonded. It is adhered to the upper surface of the core material 21, and the lower surface 33 is appropriately decorated.

However, in these configurations, the core material 8.21
It is necessary to form a stepped portion in each of the steps, and high dimensional accuracy such as depth and width is required, resulting in poor manufacturability and an increase in cost.

In addition, in the configuration shown in FIG. 5, there is a drawback that the adhesive surface near the step nosing tends to peel off due to shear stress generated at the step nosing as it goes up and down. If it is formed into an L-shape, the manufacturing method becomes worse and there is a drawback that the cost increases further.

However, by adopting the joint structure of only the sea urchin and flat plate materials according to the present invention, the above-mentioned drawbacks can be completely avoided, and as a whole, the stair nosing and its surrounding areas, which are subject to the most wear and tear, can be effectively protected. It has become possible to easily manufacture and inexpensively provide decorative treads for stairs that can prevent slipping accidents when going up and down and give the impression of precious wood.

Note that the anti-slip groove 19 can be provided by cutting or press-fitting.

In addition, conventionally known methods are used for adhering the tier plate constituent members, that is, adhesives, adhesive conditions, etc., and removal of glue or protruding adhesive, resurfacing, sanding, etc. are also performed using known methods as appropriate.

Furthermore, the procedure for adhering the step plate constituent members is not critical.

[Brief explanation of drawings]

1 and 2 are a perspective view and a side sectional view of a main part showing a conventional decorative tier board, FIG. 3 is a side sectional view showing an embodiment of the decorative tier board of the present invention, and FIGS. 4 and 5 These are a perspective view and a side sectional view of main parts for comparison of the present invention. 14...core material, 15...upper decorative material,
16... Filling board, 17... Front decorative material, 18... Top decorative veneer, 19... Anti-slip groove, 20...・Flat plate for balance.

Claims (1)

[Scope of utility model registration request] A relatively high-quality flat decorative material is glued on the upper surface of the core material at a position near the front, and a flat filler plate is glued on the remaining upper surface of the core material, with the upper surfaces thereof being almost flush with each other, and A top decorative veneer of the same material as the upper decorative material is adhered to the upper surface of the upper decorative material and the filling board, and the upper decorative material and the filling board are adhered to the upper surface of the core material, and the upper decorative veneer is bonded to the upper surface thereof. A flat plate that resists the unbalance of the core material caused by this is adhered to the lower surface of the core material, and the front surface of the flat decorative material made of the same material as the upper decorative material is made almost flush with the front end surface of the decorative veneer. In this state, the core material, the upper decorative material and the front end surface of the balance flat plate, and the lower surface of the front end side of the decorative veneer are adhered to each other, and further, a material for preventing slipping in the direction along the nosing is applied across the upper decorative veneer and the upper decorative material. A decorative tread for stairs characterized by forming grooves.