JPS5832502Y2 - stair treads - Google Patents

Description

[Detailed description of the invention] The present invention is such that the surface exposed indoors is beautifully covered with a decorative sheet, and the upper surface of the decorative sheet is kept on the same plane to prevent it from separating or chipping at the nosing. This invention relates to a stair tread for use on the stairs of a wooden house, to which a slightly protruding anti-slip member is fixed, and the core material is made of inexpensive low-grade wood or laminated wood.

There are two types of stairs: a box type as shown in FIG. 1, and an open type as shown in FIG.

Box-shaped staircases are widely used because the back side of the staircase is not exposed indoors and can be used for storage, etc. However, open-type staircases have also been frequently used in recent years as a type of indoor decoration. It has become to.

In order to manufacture such a staircase, referring to FIG. 2 in the case of a box type staircase, notches 4 for attaching treads are provided at predetermined intervals in the left and right stringers 1, 1', and notches 4 for attaching upper and lower treads are provided. A notch 5 for attaching a riser board is provided on the front side of the gap, and a notch 5 for attaching a riser board is provided on the front side of the
Then, the operations of fitting the step board 2 into the step board mounting notch 4 are repeated in sequence.

In the case of an open type, step plate mounting notches 4 are provided at predetermined intervals in the left and right stringers 1.degree. 1', and the step plates 2 are fitted into the respective step plate mounting notches 4.

Stairs are manufactured in this way, but if the treads used for such stairs were to be manufactured from a single board with a beautiful surface, it would be difficult and expensive to obtain such board material.
Conventionally, in the case of box-type stairs, as shown in Fig. 4, a decorative material consisting of plywood 2b with a decorative sheet (2C) such as vinyl chloride film or veneer affixed to the top, bottom and front surfaces of the core material 2a is used. Or, as shown in Figure 5, it is better to use plywood 2b with a decorative sheet (such as vinyl chloride film or veneer) 2C affixed to the front and front sides of the upper and lower surfaces of the core material 2a. In the case of an open type staircase, use a decorative material such as vinyl chloride film or veneer on the top, bottom, front and back of the core material 2a as shown in Figure 6. C) 2C was used, and a decorative material cut from plywood 2b was attached to the surface.

A tread with such a structure has a V-shaped groove at the corner of the decorative plywood 2b, and bends the decorative material at the V-shaped groove to form the core material 2a.
It is manufactured by attaching it to the following.

■ Since the step nosing of the tread is the same as the other stepping surfaces, feet can easily slip, which is dangerous.

■ The treads of box-type stairs shown in Figure 4 are uneconomical because the decorative material is attached to the unnecessary bottom back side, and as shown in Figure 5, the treads shown in Figure 4 are uneconomical. Due to the thickness of the removed stair nosing, it was not possible to easily create a notch for attaching the tread of the stringer girder by making a notch with a power saw and finishing with a chisel, which does not require complicated ingress and egress. The work becomes complicated and expensive.

There were drawbacks such as.

In order to eliminate the above-mentioned conventional drawbacks, a notch is provided at the tip of the upper part of the nosing of the tread, and a non-slip 6 is attached to this notch, such as a box-type stair tread as shown in FIG. 7, and a box-type stair tread as shown in FIG. Open-type stair treads such as the above are also considered, but these stair treads have a non-slip affixed to the tip of the nosing, so they have the disadvantage that the non-slip is easily removed or chipped.

The present invention eliminates these drawbacks, uses a simple rectangular cross-sectional shape, is attached to prevent slippage from coming off or chipping, and has a design effect in which the nosing part has a different color tone and pattern from other parts. The present invention relates to a stair tread that can also be raised.

More specifically, the present invention uses a decorative sheet or a decorative sheet attached to the surface of plywood on the surface exposed indoors of the core material made of low-grade wood or laminated wood, except for the nosing part. A non-slip piece is adhered to the upper surface of the nosing part of the core material, continuous with the decorative material, and with its upper surface slightly protruding from the decorative material. A U-shaped decorative material is attached to the upper surface, the front surface, and the lower surface, and the upper surface side is in contact with the front side of the non-slip member and a decorative sheet is attached to the surface, and the upper surface of the U-shaped decorative material is The present invention provides a stair tread whose top and bottom surfaces are flush with the top and bottom surfaces of the decorative core material, respectively.

Hereinafter, embodiments of the stair tread according to the present invention will be described in detail with reference to the drawings.

9 and 10 are longitudinal cross-sectional views showing an embodiment of a box-type stair tread according to the present invention, and FIG. 11 is a longitudinal cross-sectional view of an embodiment of an open-type stair tread according to the present invention. It is.

In the drawing, A is a core material that is better than low-grade lumber or laminated wood scraps, and its nosing has a surface opposite to the front side of the non-slip material, which will be described later, as shown in FIGS. 9 and 10. Abutting step portions are provided as necessary.

B is the plywood attached to the indoor exposed surface of core material A, excluding the step nosing; C is the plywood attached to the indoor exposed surface of core material A, excluding the step nosing. It is a decorative sheet such as vinyl chloride film or veneer that is pasted, and this decorative sheet (C) is sometimes pasted directly on the surface of the core material A, and sometimes on the surface of the metal plate B. .

In the present invention, only the cosmetic sheet) C or the cosmetic sheet) C
The synthetic material that is attached to the surface is called a decorative material.

D is a non-slip material that is fixed to the upper surface of the nosing part of the core material A so as to be continuous with the decorative material C and its upper surface slightly protrudes from the upper surface of the decorative material C; E is a non-slip material that is attached to the nosing part of the core material A. F is a decorative sheet such as vinyl chloride film or veneer that is pasted on the U-shaped plywood E. Plywood E is referred to as a U-shaped decorative material in this invention.

This U-shaped decorative material is made of plywood E to which decorative sheet) F is pasted.
This can be easily manufactured by providing a V-shaped groove with an angle of 90', the depth of which is the thickness of the plywood E, in the part corresponding to the bending position, and bending at this V-shaped groove.

The stair tread according to the present invention having the structure described in detail above is made of low-grade wood or laminated wood except for the nosing part, so a decorative material is attached to the surface of the core material A that is exposed indoors and has a poor appearance. Continuing with the decorative material affixed to the surface of the core material A that is exposed indoors, excluding the nosing part, the upper surface of the core material A is attached to the upper surface of the core material A on the nosing side side, with the upper surface slightly below the top surface of the decorative material. A non-slip D is fixed to a protruding state, and a U-shaped decorative material is attached to the top, front, and bottom surfaces of the step nosing of the core material A, with the top surface abutting the front side of the non-slip D. Because it has a simple structure, it can be manufactured at low cost and easily, and the mounting position of the anti-slip D can be freely set by adjusting the length of the upper side of the U-shaped decorative material and the length of the decorative material. Since the anti-slip D is fixed to the upper surface of the core material A with its upper surface slightly protruding from the decorative material, it is easy to manufacture and prevents dirt from entering the anti-slip D during use. In addition, if the decorative sheet (F) on the surface of the U-shaped decorative material and the decorative sheet (C) on the surface of the decorative material are made of the same material, the entire tread can be made to look like it was made from a beautiful single piece of board, and the U-shaped decorative material can be made from the same material. If the mold decorative material and the decorative material are made of the same material, it will have the effect of reducing the number of parts required for production, but if the U-shaped decorative material and the decorative material are used as the components, the design effect will be excellent. Moreover, it has various advantages such as the anti-slip D will not chip or come off, and its practical value is very great.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing a box type staircase, Figure 2 is a perspective view showing how to assemble the box type staircase, Figure 3 is a perspective view showing an open type staircase, and Figures 4 and 5 are conventional box type stairs. Fig. 6 is a longitudinal cross-sectional view of a conventional open-type stair tread, Fig. 7 is a longitudinal cross-sectional view of a non-slip box type stair tread, which is not a product of the present invention, and Fig. 8 is a longitudinal cross-sectional view of a conventional open-type stair tread. FIGS. 9 and 10 are longitudinal cross-sectional views of an open-type stair tread with anti-slip that is not a product of the present invention, respectively, and FIG. 11 is a longitudinal cross-sectional view showing an embodiment of a box-type stair tread according to the present invention. FIG. 2 is a longitudinal cross-sectional view of an embodiment of the open-type stair tread according to the invention. A: Core material, B: Plywood, C:
... Decorative sheet, D... Anti-slip, E...
... U-shaped plywood, F ... Decorative sheet, 1,
1'...Stringer, 2...Treadboard, 2a
... Core material, 2b ... Plywood, 2C ...
... Decorative sheet, 3... Riser board, 4...
... Notch for mounting tread, 5... Notch for mounting riser board, 6... Anti-slip.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Decorative material consisting of a decorative sheet or plywood with a decorative sheet affixed to the surface of the interior exposed surface of the core material made of low-grade wood or laminated wood, excluding the nosing part. is adhered to the nosing side of the core material, and a non-slip piece is affixed to the upper surface of the nosing side of the core material in a continuous manner with the decorative material with its upper surface slightly protruding from the decorative material. A U-shaped decorative material is attached to the top, front, and bottom surfaces of the part, and the upper surface side is in contact with the front side of the non-slip member and a decorative sheet is attached to the surface of the U-shaped decorative material. A stair tread, characterized in that an upper surface and a lower surface are on the same plane as the upper surface and lower surface of the core material with decorative material, respectively. 2. A decorative sheet on the surface of the decorative material that is affixed to the indoor exposed surface of the core material, excluding the nosing part, and a decorative sheet on the surface of the U-shaped decorative material that is affixed to the nosing part of the core material. The stair tread according to claim 1 of the utility model registration claim, wherein the stair treads are made of the same material. 3 Decorative sheet on the surface of the decorative material that is affixed to the surface of the core material that is exposed indoors, excluding the step nosing, and decorative sheet on the surface of the U-shaped decorative material that is affixed to the steps and nose of the core material. The stair tread according to claim 1 of the utility model registration claim, wherein the sheet is a separate material.