JPH1134016A - Wooden staircase, and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden staircase wherein there is no waste in a decorative material for a formed decorative plate to be affixed on the actual using surface of a side plate of the wooden staircase, and a manufacturing method by which the wooden staircase can be easily manufactured. SOLUTION: For this wooden staircase 1, on a front part exposed area Sr on the front side, which is defined with a treadboard 4 and a riser 5 on the internal side surface of a side plate 2, a formed decorative plate D having a corresponding shape with the side surface, which is obtained by cutting into a zig-zag state and dividing a wide width decorative plate, where two sheets of the formed decorative plates D can be obtained, at the center, is affixed on a base material 3 for side plate, and then, a fitting groove 4m for stepping plate and a fitting groove 5m for kicking plate are engraved and formed along the zig-zag side edges in a manner to bite into the zig-zag side edges, and then, the treadboard 4 and the riser 5 are attached and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden stair at least partially composed of a side plate, a tread and a riser, and a method of manufacturing the same.

[0002]

2. Description of the Related Art The most typical wooden stairs composed of a side plate, a tread plate, and a riser plate have a tread plate mounting groove and a riser plate mounting groove formed on the inner side surfaces of a pair of left and right side plates, and the tread plate is formed on the side plate. And a so-called box-shaped wooden staircase having an overall structure in which the riser plate is fitted and fixed to each of the mounting grooves by fitting both ends thereof.

Usually, in addition to the wooden stairs having the above-described structure, this structure is employed on one of the right and left sides of the stairs or partially in the ascending / descending direction, and in other parts, the wooden stairs are of an exposed type, a staircase type or the like. There is also a so-called mixed type structure in which another structure is adopted.

A plywood or a veneer laminate (LVL) is used as a base material for the side plate of the wooden staircase having a box-type structure, and a wooden veneer or a synthetic resin plate is provided on the surface or the found surface of the base material. A decorative plate, such as a decorative plate, is often used.

However, the side plate in this case is usually
When a decorative plate is attached to the entire surface of one side of the base material for one side plate, the size of the side plate is prepared, and when the decorative plate is a wooden veneer, the so-called one-sided material having substantially the same dimensions as the base material is used. Since expensive wooden veneers are used, such wooden veneers have become more expensive due to the recent decline in decorative wood resources, and have only resulted in higher costs for the side veneers. Rather, it is rather difficult to obtain.

Further, even if the decorative plate is a parquet veneer obtained by slicing a block obtained by assembling a small piece of wood, for example, the veneer requires a large size, and accordingly, the veneer plate is long. Equipment such as a press machine is required, and processing is troublesome, so it is not inexpensive.

[0007] In addition, the completed staircase is such that the side plate is placed in a state where the side plate is covered with a makeup up to a hidden area on the rear side defined by a tread plate and a riser plate. , Waste of cosmetic materials.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances and has solved the above-mentioned conventional problems of a wooden stair at least partially constituted by a side plate, a tread plate and a riser plate. An object of the present invention is to provide an inexpensive wooden staircase with less waste of decorative material and a manufacturing method for easily obtaining the same by applying makeup only to the front effective surface of the side plate.

[0009]

According to the first aspect of the present invention, there is provided a wooden stair at least partially including a side plate, a tread plate, and a riser plate. The gist of the present invention is a wooden staircase characterized in that a molded veneer of a corresponding shape is adhered only to a front exposed region on the front side defined by a tread and a riser.

Further, according to a second aspect of the present invention, there is provided a method of manufacturing a wooden stair at least partially including a side plate, a tread plate, and a riser plate, wherein the step is defined by a tread plate and a riser plate on an inner side surface of the side plate. A shape corresponding to the front exposed area on the front side to be made, to produce a molded decorative panel with one side being a zigzag side, and after sticking this molded decorative panel to the front exposed area of the side plate, A method of manufacturing a wooden staircase, characterized in that a stepboard mounting groove and a riser mounting groove are formed by engraving the zigzag side of the formed decorative board, and then the stepboard and the riser are mounted. Make a summary.

Further, in a preferred aspect of the second invention of the present invention, in the step of manufacturing the molded decorative board, one strip-shaped wide decorative board from which two of the molded decorative boards are obtained is provided. The wide decorative veneer is cut in a zigzag shape in the length direction at a middle portion of the width to obtain two left and right shaped decorative veneers having the same shape which are point-symmetric with each other. Wooden stairs manufacturing method.

The present invention is not limited to a case where the wooden stairs are completed by attaching a side plate in advance to a construction site and then attaching a tread plate and a riser plate thereto. It is also applicable to the case where all of the above are assembled and completed and then brought to the construction site for installation.

Hereinafter, the present invention will be described with reference to the drawings showing a form of a wooden staircase obtained by the present invention. In the following description, it is assumed that the entire staircase has a so-called box-type structure composed of side plates, tread plates, and risers.

In FIG. 1, a wooden staircase (1) of the present invention is shown.
Is composed of a pair of left and right side plates (2), (2), a tread plate (4) and a riser plate (5) which are bridged and fixed between them. The riser plate (5) includes a tread plate mounting groove (4m) and a riser plate mounting groove formed at both ends of each of these plates on the inner side surface (S) of the pair of left and right side plates (2) and (2). (5m), each of which is bridged and fitted by being fitted thereto.

The side plate (2) has an inner side surface (S) in which a side plate base material (3) is divided by a tread plate (4) and a riser plate (5).
Of the front exposed area (Sf) and the rear area (Sr) on the front side of the above, the molded decorative board (D) is attached only to the front exposed area (Sf).

Further, the molded decorative board (D) comprises a decorative base material (6) and a decorative sheet (7) adhered and integrated on the surface thereof, and the front part of the side plate base material (3) is exposed. Area (S
Molded decorative plates (Dh) and (Dm) having a bilaterally symmetric shape corresponding to f) are used.

Next, the production of the side plate (2) will be described. First, as shown in FIG. 2, on the inner side surface (S) of the side plate base material (3), the tread plate (4) and the riser plate (5) are formed. The decorative veneer (D) is attached to a predetermined position of the front exposed area (Sf) on the front side with the expected mounting position (L) in ()) as a guide.

Here, as shown in FIG. 6, the decorative decorative board (D) to be adhered to the side plate base (3) is
Using a wide decorative board (C) obtained by bonding and integrating a decorative sheet (7) on the surface of the base plate, a front exposed area (Sf) as shown in FIGS. ) Is obtained by cutting and forming into a shaped decorative plate (D) having a shape corresponding to ()).

Further, as shown in FIG. 4, the side plate base material (3) to which the molded decorative board (D) is adhered bites into the zigzag side (W) of the molded decorative board (D). A tread plate mounting groove (4 m) and a riser plate mounting groove (5 m) are engraved and formed in the arrangement state. (E) is a biting allowance at the time of forming the tread plate mounting groove (4 m) and the riser plate mounting groove (5 m).

Next, as shown in FIG. 5, the tread plate (4) is fitted into the tread plate mounting groove (4m) by fitting both ends of the plate respectively, and the kick plate (5) is similarly mounted. The wooden stairs according to the present invention are completed by mounting (not shown) in the riser mounting grooves (5 m).

Here, the materials used for each component of the wooden staircase in the present invention will be described below.

First, as a material of the side plate base material (3),
A commercially available wood material such as plywood, laminated veneer (LVL), laminated wood, or a combination thereof is used. The surface quality of these materials is adjusted according to the material of the decorative base material (6) used on the back surface of the molded decorative plate (D) described later that is adhered to the surface. in this case,
For example, when a wood material is used for the decorative base material (6), even if the surface quality of the material is poor, the sticking performance does not decrease, and the material can be used as it is and can be used as it is. This is advantageous because it also leads to effective use of wood resources.

In the above case, when the material made of wood is smaller than predetermined dimensions (length, width) required for the target side plate base material (3), they are replaced with a scarf joint or It may be finished to a predetermined size by joining means such as a finger joint. Further, when the material is thinner than a predetermined thickness, a butt joint or the like may be provided in addition to the above-described joining means, and a plurality of the butt joints may be laminated and bonded to finish the predetermined thickness.

Further, as shown in FIG. 6, a wide decorative panel (C) for obtaining a decorative panel (D) is formed by bonding a decorative sheet (7) to the surface of a decorative substrate (6). What is done applies. At this time, a sheet material such as paper and nonwoven fabric, or a wood panel material such as plywood, medium fiber material (MDF), hard fiber board, laminated board, particle board, etc. is applied as the decorative base material (6). Further, as the decorative sheet (7), a wooden veneer, a synthetic resin sheet (including a pattern-printed sheet) and the like are applied. And
The material for the decorative base material (6) and the material for the decorative sheet (7) selected from these are bonded and integrated by a known bonding method to form a wide decorative board (C).

In the above case, when a wooden veneer is used for the decorative sheet (7), the wooden veneer may be a width hedge or a longitudinally joined one for effective use of resources. I do. The vertical joint is desirably a finger joint that is inconspicuous in the seam, and the wood veneer to be used is also obtained from the same flitch and the same ends of vertically adjacent sliced veneers are joined by the finger joint. Needless to say, it is better to select a pair of left and right decorative sheets (7) in which discontinuity of the cascaded mesh is inconspicuous. Note that the finger joint may be formed at a plurality of locations.

As described above, when a veneer veneer is used for the decorative sheet (7) and a plywood is used as the decorative base material (6) to be adhered and integrated with the veneer veneer, the crack of the veneer veneer is required. For the purpose of preventing, when the fiber direction of the front veneer of the plywood and the fiber direction of the wood veneer are the same or close thereto, paper or non-woven fabric as a sheet material between the two veneers, preferably these papers Or between the plywood and the veneer veneer such that the direction of large tensile strength of the nonwoven fabric and the fiber direction are perpendicular or substantially perpendicular to the fiber direction, or the fiber direction of the veneer front veneer and the wood veneer The plywood and the wood veneer are desirably bonded and integrated so that the fiber direction of the plywood is orthogonal or substantially orthogonal. The wood veneer may be a so-called backing veneer, in which a sheet material is pasted on the back surface.

Next, in order to obtain a molded decorative sheet (D) to be adhered to the surface of the base material (3) for the side plate from the strip-shaped decorative sheet (C), the following means will be used.

First, in FIG. 7A, one wide decorative board (C) having a width (d) capable of obtaining two molded decorative boards (D) is prepared, and this wide decorative board (C) is prepared. ) Is cut in a zigzag shape (w) in the length direction at the middle part of the width, and two molded left and right symmetrically shaped decorative plates (D) having right and left points as shown in FIG. obtain. In this case, on both sides of the portion to be cut in the zigzag shape (w), the tread plate mounting groove (4m) and the riser plate mounting groove (5
It is assumed that a biting allowance (e) at the time of the engraving formation of m) is scheduled, and the biting allowance (e) is the side plate base material (3).
It should be determined in consideration of the variation in the sticking position when the molded decorative board (D) is attached to the veneer, and the variation in the processing at the time of forming the tread plate mounting groove (4 m) and the riser plate mounting groove (5 m). I do. Therefore, the width (d) of the wide decorative board (C) is substantially equal to a width obtained by adding at least a width corresponding to the biting allowance (e) to the expected width of the formed decorative board (D). It is desirable to do.

At this time, even if the left and right side plates (2) and (2) have corresponding shapes, it is necessary to form molded decorative plates (Dh) and (Dm) having different decorative shapes with the decorative surfaces being opposite to each other.
In order to obtain both left and right molded decorative panels (D), the above operations corresponding thereto are performed by the left and right molded decorative panels (Dh) and (Dm).
Will be repeated. This repetitive operation is performed by using one of the decorative panels (Dh) and the other of the decorative panels (Dm) on a separate wide decorative panel (C), or as shown in FIG.
As shown in (c), the wide decorative board (C ′) of double width (d ′)
′) May be prepared and operated so as to simultaneously obtain a molded decorative panel (Dh) and a molded decorative panel (Dm) from the double-width wide decorative panel (C ′). In this case, as in the case of the wide decorative board (C), the width (d ′) is equal to the width obtained by adding the width corresponding to the bite allowance (e) to the width of the molded decorative board (D ′). Needless to say, it is desirable to do so.

As the means for cutting the molded decorative sheet (D) from the wide decorative sheet (C), known cutting means may be used. For example, cutting tools such as a router and a jigsaw, and means for punching with a press machine may be used. Although it is efficient to use, when the decorative base material (6) constituting the wide decorative board (C) is a sheet material, cut it with a knife using a ruler matching the shaped decorative board (D). Alternatively, if the punching is performed using a pressing blade or a punching blade having the same shape as that of the molded decorative board (D), the cut surface can be cut without a defect, and the decorative base material (6) is a wood panel material. In some cases, a router or the like is appropriate in addition to the punching means.

As a means for attaching the molded decorative board (D) obtained above to the base material (3) for the side plate, a general-purpose wood adhesive or the like is used, and a normal cold or hot pressing means is used. It should be adhered under normal conditions according to the composition and thickness of the material.

As shown in FIG. 8, the side plate base material (3) on which the formed decorative board (D) is adhered is formed together with the formed decorative board (D) together with the zigzag side edges (FIG. 8). W) is engraved including the bite allowance (e) so as to bite into, and the tread plate mounting groove (4m) and the riser plate mounting groove (5m) (not shown)
Is formed, and the side plate (2) is finished. At this time, an NC router or the like is preferably used as the engraving means. It should be noted that both mounting grooves (4m) and (5m) due to variations in the position at which the decorative decorative sheet (D) is stuck to the side plate base material (3) and variations in the material setting positions when forming both mounting grooves (4m) (5m). (4m) Some cosmetic material may remain on the rear part of the (5m), especially the rear part of the narrow riser mounting groove (5m), but in this case, the effect obtained by the present invention is substantially reduced. Rather, it is naturally made based on the technical idea of the present invention.

The shape of the tread mounting groove (4 m) is as follows.
The groove shape commonly used in the conventional box-shaped wooden stairs is applied. For example, as shown in FIG. 9 (a), the parallel groove (m) of the insertion and fixing method having a width substantially equal to the thickness of the tread plate (4). Or the width of the front end of the groove is the same as the thickness of the tread plate (4) as shown in FIG. 9 (b), the upper edge is horizontal, and the lower edge is lowered rearward. A wedge-fixed groove (m ') into which a wedge (k) is driven between the edge and the edge is employed.

As described above, the wooden staircase according to the present invention is different from the conventional wooden staircase in which the entire inner side surface of the side plate is decorated, and the wooden staircase on the front side divided by the tread plate and the riser plate of the side plate. It is characterized in that a molded decorative plate of a corresponding shape is stuck only to the front exposed area, and the makeup is not wastefully applied.

Further, according to the method for manufacturing a wooden staircase according to the present invention, a molded decorative board having a shape corresponding to a front exposed area on the front side defined by a tread plate on the inner side surface of the side plate and a riser plate is provided.
After sticking to the front exposed area of the side plate, a tread plate mounting groove and a kick plate mounting groove are formed by engraving in a zigzag side of the molded decorative plate, and then the tread plate and the kick plate are attached. Therefore, there is almost no decorative material left in the rear region defined by the tread and the riser on the inner side surface of the side plate as in the conventional case, and the zigzag shape of the formed decorative plate is the tread plate mounting groove and It matches each shape of the riser mounting groove.

Further, the molded decorative panel according to the present invention is manufactured by zigzag cutting in the length direction at the middle part of the width of one strip-shaped wide decorative panel from which two molded decorative panels are obtained. Since two molded decorative plates having the same shape which are point-symmetric with each other are obtained on the left and right sides, there is almost no loss of decorative material.

The present invention can be applied not only to a so-called box-shaped wooden staircase in which the whole portion is constituted by the side plate, the tread plate, and the riser plate as described above, but this structure is employed on one of the right and left sides of the staircase. On the other side, a wooden staircase in which a ladder-type side plate with a structure to support a treadboard is used in all or part of the vertical direction, and on the other side, a wooden staircase in which an exposed Sasara girder is partially used Even in the case of a wooden stair having a so-called mixed type structure, the present invention can be applied to the side plate portion of the box type structure.

[0038]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
A description will be given according to an embodiment of a wooden staircase obtained by the present invention. In this embodiment, as shown in FIG. 1, all portions are box-shaped wooden stairs composed of a side plate, a tread plate, and a riser plate, and the material of each component constituting the side plate is as follows. .

Substrate for side plate: plywood (thickness 27 mm, width 24
0 mm, length 3965 mm) Wide decorative board: A plate-like body (thickness 3 mm, width 256 mm, length 3965 mm) obtained by bonding and integrating the following decorative base material and decorative sheet: Makeup base material: wood panel (thickness) 2.7mm in width, 256m in width
m, length 3965mm) Decorative sheet: wood veneer (vertical joint veneer, thickness 0.3mm,
(256mm width, 3965mm length)

First, as a molded decorative plate (D) to be adhered to the surface of the base material (3) for the side plate, a band-shaped wide decorative material in which a decorative sheet (7) is adhered and integrated with the surface of the decorative substrate (6). Two plates (C) are prepared and, as shown in FIG. 7 (a), a zigzag shape (w) corresponding to the desired shape of the molded decorative plate (D) is prepared.
To form a decorative veneer (Dh) corresponding to one front exposed area (Sf) of the side plate (2) from the one wide decorative plate (C), and another wide decorative plate (C). Similarly, a molded decorative board (Dm) was obtained from the board (C).

Furthermore, the molded decorative board (D
h) (Dm) is coated with an adhesive on the back surface of the molded decorative panel (Dh) as shown in FIG. 2 (only described for the molded decorative panel (Dh)), and the inner side of the side plate base (3). It was arranged at a predetermined position corresponding to the front exposed area (Sf) of the side surface (S) and was adhered by a hot press.

Next, a wooden veneer was attached as a finding material at a position corresponding to the finding surface of the side plate base material (3) (not shown).

Next, as shown in FIG. 4, the side plate base material (3) is formed along the zigzag side (W) of the molded decorative plate (Dh) and bites into the NC. A tread plate mounting groove (4 m) and a riser plate mounting groove (5 m) were formed by a router. The groove shape of the tread mounting groove (4 m) was of a wedge fixing type, and the depth was 10 mm.

A pair of left and right side plates (2) (2) (on which a decorative veneer (D) obtained as described above is stuck and formed with a tread plate mounting groove (4 m) and a riser plate mounting groove (5 m)). 2)
Takes this to the installation site and, for example, along the cutting line (g) shown in FIG. 2, the lower end portion (f) of the side plate base material (3)
And the upper end (not shown) of the molded decorative board (D) at the lower end (f
´) and the upper end (not shown) are cut according to the construction site, if necessary, and a single piece of wood veneer is affixed to the cut surface. Attached (not shown). Thereafter, the tread (4) is inserted into the tread mounting groove (4m), and the riser (5) is inserted into the riser mounting groove (5m).
The two plates (4) and (5) are mounted by fitting both ends thereof, and the tread plate (4) is fixed to a normal wedge (see FIG. 9).
(B)), the wooden stairs as shown in FIG. 1 were completed at the construction site.

In the wooden staircase obtained above, the decorative veneer (D) is formed only in the front exposed area (Sf) of the inner side surface (S) of the side plate (2). The connection with the tread plate (4) and the riser plate (5) was good, and the appearance was beautiful.

In this embodiment, there is almost no loss of the decorative material at the time of manufacturing the molded decorative plate (D).
It does not occur except when the tread plate mounting groove (4 m) and the riser plate mounting groove (5 m) of the side plate (2) are cut and formed and when the upper and lower ends of the side plate base material (3) are cut. Was.

[0047]

As described above, according to the wooden staircase of the present invention according to the first aspect, in the wooden staircase at least partially constituted by the side plate, the tread plate, and the riser plate, the inner side surface of the side plate is formed. Since the corresponding decorative veneer is adhered only to the front exposed area on the front side defined by the tread and the riser, the rear side hidden by the tread and the riser is hidden. In contrast to the conventional one in which makeup is applied to the area, there is an effect that a beautiful and inexpensive wooden staircase can be obtained in which there is no waste of the makeup material, the finish is extremely good and the finish is extremely good.

Further, according to the method for manufacturing a wooden staircase of the present invention according to claim 2, a shape corresponding to the front exposed region on the front side defined by the tread plate and the riser plate on the inner side surface of the side plate, After producing a molded decorative panel having one side edge as a zigzag side edge, attaching the molded decorative panel to the front exposed area of the side plate, and in an arrangement state of biting into the zigzag side edge of the molded decorative panel. Since the tread and riser mounting grooves are formed by engraving and then the tread and riser are mounted, the loss of the decorative material can be minimized, and the tread and riser can be formed and molded. There is an effect that it is possible to obtain a high-quality wooden staircase which has an extremely good finish at a portion to be connected to a board and has a beautiful appearance.

Further, in the method for manufacturing a wooden staircase according to the third aspect of the present invention, in the step of manufacturing a molded decorative panel, one strip-shaped wide decorative panel for obtaining two molded decorative panels is prepared. Then, the wide decorative board is cut in a zigzag shape in the length direction at the middle part of the width, so that two left and right shaped decorative boards having the same shape which are point-symmetric with each other are obtained. It is inexpensive with almost no material loss during manufacture, and at least two molded decorative panels of the same shape on either one of the right and left sides can be obtained at the same time. There is.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a basic form of a wooden staircase of the present invention.

FIG. 2 is a partially omitted perspective view for explaining a configuration of a side plate in a wooden staircase.

FIG. 3 is an enlarged cross-sectional view taken along line AA of the molded decorative board in FIG. 2;

FIG. 4 is a plan view showing an engraved state of a tread plate mounting groove and a riser plate mounting groove formed on the inner side surface of the side plate.

FIG. 5 is an enlarged cross-sectional view taken along the line BB of FIG. 4, showing a mounting state of the tread plate.

FIG. 6 is a partially cutaway perspective view showing a configuration of a wide decorative board as an original plate of a molded decorative board.

FIG. 7 is a view showing a state of manufacturing a molded decorative board, FIG. 7 (a) is a plan view showing a cut state from a wide decorative board, and FIG. 7 (b) is a perspective view showing a cut and divided state. , FIG.
(C) is a plan view showing a cut state from a double-width wide decorative board.

FIG. 8 is a partially cut end view showing a state in which a tread plate mounting groove of a side plate is cut and formed.

FIG. 9 is a cross-sectional view conceptually showing a mounting state of the tread plate in the tread plate mounting groove, and FIGS. 9A and 9B are cross-sectional views showing states of the tread plate mounting groove in respective shape examples.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wooden staircase 2 ... Side board 3 ... Side board base material 4 ... Tread board 5 ... Kick board 6 ... Makeup base material 7 ... Decorative sheet 4m ... Tread board mounting groove 5m ... Kick board mounting groove C, C '... Wide decorative board D , Dh, Dm: molded decorative sheet S: inner side surface Sf: front exposed area Sr: rear area W: zigzag side w: zigzag

Claims (3)

[Claims] 1. A wooden staircase at least partially composed of a side plate, a tread plate, and a riser plate, wherein only a front exposed area on the inner side of the side plate is defined by the tread plate and the riser plate. A wooden staircase, wherein a molded veneer of a corresponding shape is stuck. 2. A method of manufacturing a wooden stair at least partially including a side plate, a tread plate, and a riser plate, wherein a front exposed area on a front side of the inner side surface of the side plate is defined by the tread plate and the riser plate. After forming a decorative veneer having a shape corresponding to the shape of one side with a zigzag side, attaching the formed decorative plate to the front exposed area of the side plate, the zigzag side of the molded veneer A method for manufacturing a wooden staircase, characterized in that a step board mounting groove and a riser board mounting groove are engraved and formed in a state where the step board and the riser board are bitten, and then the step board and the riser board are mounted. 3. In the manufacturing process of the molded decorative panel, a single band-shaped wide decorative panel for obtaining two molded decorative panels is prepared, and the wide decorative panel is placed in a longitudinal direction at an intermediate portion of the width. 3. The method for manufacturing a wooden staircase according to claim 2, wherein two shaped decorative veneers having the same shape that are point-symmetric with each other are obtained by cutting in a zigzag shape.