JP2002294962A - Nosing member producing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and efficiently produce a nosing member which does not expose a gap on an upper surface side when mounted on a staircase treadboard. SOLUTION: There is provided a nosing member producing method, according to which a synthetic resin is extrusion-molded to obtain a molded body which consists of a horizontal portion 34 and a pair of vertical portions 32, 36 continuously extending from both ends of the horizontal portion, and has an almost U-shaped cross section being laterally symmetrical. Then, a facing material 37 is stuck to a surface of the molded body, which is then divided into two pieces along a laterally central line X. Thus, the two nosing members 10 of the same shape can be simultaneously produced. Each nosing member 10 has a vertical portion 14 covering a front surface of the treadboard 1 and a horizontal portion 13 covering a front upper surface of the treadboard, and is formed of a substrate 11 being shaped like the ell in cross section, and the facing material 12 stuck to the surface of the substrate 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a nostril member to be attached to a stair tread.

[0002]

2. Description of the Related Art When constructing a tread of a stair, a stair nosing member is attached from the upper surface to the front surface of the front end of the tread. This nostril member is a part that contacts the sole of the pedestrian when climbing up and down the stairs, that is, carving a groove on the top surface,
By forming this portion with a non-slip material, the portion is used to prevent a pedestrian from slipping and falling down when going up and down stairs.

[0003] By the way, since the price of solid wood has risen with the depletion of wood resources, as a base material for stair treads, a laminated wood or a single-ply laminated wood which can be obtained at a lower cost than solid wood is used. It is widely used to apply a decorative material such as a veneer or a decorative sheet to a portion of the substrate exposed on the outer surface, that is, a part of the front surface, the front surface, the lower surface, or the like.

In such a situation, when a stair member is attached to a stair tread, the above-mentioned anti-slip function is provided by attaching a stair member instead of attaching a decorative material to the tread base material. It also serves as makeup from the front to the front of the stair tread.

[0005]

As the nosing member, a synthetic resin extruded product excellent in price, workability, durability and the like is often used. In this case, after a synthetic resin is extruded into a base material having a predetermined shape, a decorative material such as a surface-colored decorative paper or a decorative synthetic resin sheet is attached to the surface of the base material.

FIG. 9 shows a state in which a nosing member A, which is a synthetic resin extruded product according to the prior art, is attached to a stair tread plate B. The nose member A is formed in a substantially L-shaped cross-sectional shape so as to be attached from the front upper surface to the front surface of the stair tread B, and the rear end of the nose member A has a groove C formed on the upper surface of the stair tread B The fitting piece D is integrally formed.

Therefore, the nostril member A has at least two corners E1 and E2 which are bent at a substantially right angle. However, if these corners are formed at a right angle, the decorative material is wound around the right angled corner. Since it is difficult to attach the base material, the corner shape of the base material is generally an arc.

For this reason, as shown in FIG. 10, the groove C of the stair tread B is formed at the corner E1 on the rear end side of the nosing member A.
A gap G is generated between the chamfered portion F and the aesthetic appearance, and dust is accumulated in the gap G, which is liable to be unsanitary.

[0009] Attempts have been made to make the end of the base material a right angle and stick the decorative material so that it does not get caught in this corner and just ends at the end, but there are factors such as dimensional errors and the like. It is practically very difficult to stick the lip tightly to the edge, but not protruding from the edge,
There are problems such as that the cosmetic material protrudes from the end portion, and conversely, the base material portion is exposed without the cosmetic material reaching the end portion.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and more specifically, to provide a nostril that does not expose a gap on the upper surface side when attached to a stair tread. An object is to manufacture a member efficiently by a simple method.

In order to achieve these objects, the present invention according to claim 1 has a substantially L-shaped cross-sectional shape having a horizontal portion and a vertical portion connected to one end of the horizontal portion by extruding a synthetic resin. After forming a molded body, after applying a decorative material on the surface of the molded body, the molded body on which the decorative material is adhered,
A vertical portion that cuts in the same direction as the extrusion direction at a predetermined position on the other end side of the horizontal portion where the vertical portion is not continuous, and covers a front surface of the step board of the stairs and a horizontal portion that covers the upper surface of the front end of the step board. A method of manufacturing a nasal member, comprising manufacturing a nasal member having a decorative material adhered to a surface of a substrate having a substantially L-shaped cross section having the following.

In this manufacturing method, when the molded body is cut in the same direction as the extruding direction, if the cut is made at a right angle to the horizontal portion, the rear end corner is made a right angle, and the decorative portion is perfectly fitted to the end. It is possible to easily manufacture a nostril member to which a material is stuck without protruding from an end.

According to a second aspect of the present invention, there is provided a substantially rectangular shape which is horizontally symmetrical in a width direction by extruding a synthetic resin and having a horizontal portion and a pair of vertical portions connected to both ends of the horizontal portion. After forming a shaped body having a V-shaped cross-section and attaching a decorative material on the surface of the shaped body, the shaped body on which the decorative material is stuck is divided into two along the center line in the width direction, and the At the same time, a nose member of the same shape, in which a decorative material is adhered to the surface of a substantially L-shaped cross-sectional base material having a vertical portion covering the front surface of the tread plate and a horizontal portion covering the top surface of the front end of the tread plate, This is a method for manufacturing a nostril member, which is manufactured individually.

According to this manufacturing method, the rear end of the base material is made to be a right angle, and at the same time, two nosing members are stuck to the end without sticking the decorative material without protruding from the end. And the manufacturing cost can be reduced.

The stair nosing member manufactured by the manufacturing method of the present invention has a rear end formed at a right angle and a decorative material adhered to the end thereof. There is no gap or shading between the tread and the board, and a good appearance can be obtained, and there is no unsanitary accumulation of dust in the gap.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a nostril member according to an embodiment of the present invention will be described below with reference to FIGS.

First, a synthetic resin is extruded into a molded article having a desired shape by an extruder. As the extrusion molding machine and the extrusion molding method, those generally used in the related art can be adopted, and therefore, will not be described in detail here.

In this embodiment, the approximate L to be manufactured is
A molded body 30 having a cross-sectional shape (FIG. 1) corresponding to two pieces of the nose member 10 (FIG. 2) having a V-shaped cross-sectional shape is obtained.

More specifically, the nostril member 10 to be manufactured in this embodiment includes a base material 11 and a decorative material 12 adhered on the base material. Is formed integrally with the hard and rigid material into a substantially L-shaped cross-sectional shape having a horizontal portion 13 covering the front upper surface of the stair tread 1 and a vertical portion 14 covering the front surface of the stair tread 1. .

A plurality of grooves 15 extending over the entire width are provided on the upper surface side of the horizontal portion 13 of the base material 11. The cross-sectional shape of the concave groove 15 is arbitrary such as a square, a rectangle, and a trapezoid. The depth of the groove 15 is also arbitrary, but if the height difference between the surface of the horizontal portion 13 and the bottom of the groove 15 is too large, the groove 15
Dust easily accumulates in the inside, and it is difficult to clean the accumulated dust, and the walking sensation is deteriorated. Therefore, it is generally preferable that the height difference is about 0.5 to 3.0 mm.

The nostril member 10 is formed such that the horizontal portion 13 excluding the concave groove 15 is substantially flush with the main body of the stair tread when attached to the stair tread 1 as described later. I have.

The groove bottom of the concave groove 15 is located at the rear end corner 1 of the horizontal portion.
9 and by synchronizing the depth and the inclination angle thereof with the chamfered portion 3 (FIG. 5) formed adjacent to the groove 2 of the stair stepping board 1, the stair nosing member 10 and the stair stepping board 1 are formed. And a sense of unity can be provided between them, and the appearance can be improved. For this reason, although the cross-sectional shape of the concave groove 15 is arbitrary, it is possible to form the groove 15 to have a trapezoidal cross-sectional shape as in the illustrated embodiment, and to synchronize the height and the inclination angle with the tread plate chamfered portion 3. preferable.

At the rear end of the horizontal portion 13 of the base material 11, a hanging piece 16 having a fine projection 17 on the inner surface side is formed. This hanging piece 16 is fitted in the groove 2 of the stair tread 1,
The stair nosing member 10 is attached so that the front end of the stair tread 1 is sandwiched between the stair tread 1 and a vertical portion 14 covering the front surface of the stair tread 1. The fine projections 17 provided on the inner surface side of the hanging piece 16 engage with the inner surface of the groove 2 when fitted into the groove 2, and make it difficult for the hanging piece 16 to come off (FIG. 6). It is preferable that the fine projections 17 are formed on the inner surface side (front) of the hanging piece 16. In this way, a gap is formed in front of the groove 3 in the fitted state, but directly above the groove 3. Since the base material horizontal portion 13 exists,
It is not exposed to the outside.

All of the fine projections 17 may have the same projection length. However, if the upper projections are formed so as to protrude more, the hanging projections 16 may be lowered when the hanging pieces 16 are fitted into the grooves 2. This is a preferred embodiment because the upper outer surface of the piece 16 is pressed against the inner surface of the groove 2 and the gap (gap G in FIG. 10) can be reliably closed.

The lower end of the vertical portion 14 of the substrate 11 is bent rearward to form a locking piece 18. This locking piece 18
Is a lower cutout 4 formed at the lower end of the front surface of the stair tread 1.
(FIG. 5) to prevent the stair nosing member 10 from coming off the stair tread 1.

The horizontal portion 13 and the vertical portion 14 of the substrate 11
As described above in connection with the prior art, the corner formed between the cosmetic material 12 and the cosmetic material 12 prevents injury when the foot is hit by the corner during stairs walking. In order to improve the adhesiveness, it is preferable that the cross section be arc-shaped (FIG. 1) or chamfered. The same applies to the corner between the vertical portion 14 and the locking piece 18. Top rear corner 19 formed between horizontal portion 13 and hanging piece 16
Are formed at right angles as shown.

The decorative sheet 12 is adhered on the base material 11 at a portion where the user can see the user when the stair nosing member 10 is attached to the stair tread 1, that is, a portion exposed to the outer surface. When the locking piece 18 is provided as shown in FIG. 1, the lower surface side of the locking piece 18 is also visible from below when going up the stairs.
The decorative material 12 is stuck over the front surface of the vertical portion 14 and the lower surface of the locking piece 18. Since the hanging piece 16 is fitted in the groove 2 of the stair tread 1 and is not exposed to the outside, the decorative material 12 is not stuck on the outer surface of the hanging piece 16 and ends exactly at the end of the upper rear corner 19. It has become. Locking piece 1
In a case where the decorative material 8 is not provided, the decorative material 12 is stuck from the horizontal portion 13 to the lower end of the front surface of the vertical portion 14 or the lower surface thereof.

As described above, the shape of the molded body 30 shown in FIG.
(FIG. 2), which is formed into a shape in which the vertical portions 14 face each other with the hanging pieces 16 joined and integrated. That is, the molded body 30 is
Vertical portion 32 having a lower end at the lower end, a horizontal portion 3 having a concave groove 37 on the front side and a central hanging portion 33 on the rear side.
4, and a right vertical portion 3 having a right locking piece 35 at the lower end.
6 and is formed in a substantially U-shaped cross-sectional shape, and is symmetrical about the center line X.

The molded material 30 having such a shape is provided with a decorative material 38.
Affix. In general, a decorative synthetic resin sheet or decorative paper is used as the decorative material 38, but a decorative synthetic resin sheet is preferably used in terms of strength and rigidity. The cosmetic material 38 is
The left vertical portion 32 and the horizontal portion 34 from the lower surface of the left locking piece 31
And the right vertical portion 36 is covered so as to be wound around the lower surface of the right locking piece 35.

Next, the molded article 3 to which the decorative material 38 is adhered
0 is cut in the same direction as the extrusion direction and in a direction orthogonal to the extrusion direction. In this embodiment, cutting in the same direction as the extrusion direction is performed along the center line X in the width direction of the molded body 30, and the molded body 30 is divided into two parts, which corresponds to two nose members (FIG. 2). This is to produce two molded bodies having a cross-sectional shape at the same time. Cutting in a direction perpendicular to the extrusion direction is performed on a molded body 3 previously molded as a long body.
0 is trimmed to an appropriate length as the nosing member 10 (that is, the width of the stair tread). Regardless of the order of the cutting in the same direction as the extrusion direction and the cutting in the direction perpendicular to the extrusion direction, it can be arbitrarily determined according to the arrangement relationship of the production line.

In this embodiment, the molded body 30 having a shape and dimensions corresponding to two nose members 10 to be obtained is cut along the center line X in the width direction, so that the same shape and the same shape can be obtained by one cutting. Although two nose members 10 having different dimensions can be obtained, it is also possible to cut so as to obtain two nose members having different shapes and dimensions at the same time. For example, when extruding a molded body, the molded body is formed to have a larger size in accordance with the larger size of the nostril member (a), and the first cut is made with the nostril member (a) and the smaller nostril of the prescribed size. The nose piece (b) can be obtained by dividing into two parts (b '), which is obtained as a dimension larger than that of the member (b), and cutting this (b') to a specified size in the second cutting.

According to the above embodiment, after the decorative material 38 is adhered to the molded body 30, the two nose members 10 are simultaneously manufactured by cutting in the same direction as the extrusion direction. The end is formed at a right angle, and the end of the decorative material 12 is flush with the rear end, exposing the surface of the base material, or conversely, the decorative material 12 extends beyond the rear end of the base material. It does not protrude (Fig. 3).

FIG. 4 shows the shape of a molded body 40 according to another embodiment of the present invention, in which the rear end portion of the base material of the nose member 10 (FIG. 2) to be obtained is formed thick to have an excess portion 41. It was made. The surplus portion 4 is provided on the surface of the molded body 40.
Although the decorative material 42 is stuck to the end of the first decorative material 42, the position of the end (the end on the side of the surplus portion 41) of the decorative material 42 does not need to be strictly defined, and is set within the cutting allowance later. It is good to keep it. Alternatively, the decorative material 42 may be stuck so as to protrude beyond the surplus portion 41.

The molded body 40 to which the decorative material 42 is adhered is cut in the same direction as the extrusion direction and in a direction perpendicular to the extrusion direction. In this embodiment, cutting in the same direction as the extrusion direction is performed along the cutting line Y within the range of the surplus portion 41 of the molded body 40, and the nasal member 10 of FIG. 2 is obtained. The cutting in the direction perpendicular to the extrusion direction is the same as in the above-described embodiment, and before or after cutting along the cutting line Y, the cutting is performed to an appropriate length as the nosing member 10 (that is, the width of the stair tread). They are aligned.

The cut surface that appears after cutting the compacts 30 and 40 in the same direction as the extrusion direction is the same as that of the nostril member 10.
Although the outer surface of the hanging piece 16 is formed, the hanging piece 16 is housed in the groove 2 when the nose member 10 is attached to the stair tread plate 1 as described later, so that the outer surface is exposed to the outside. There is no problem in appearance, even if there is some difficulty in the cut surface. In the case where the cut portion is extremely fuzzy at the time of cutting, sanding may be applied to the fuzzy portion to process the cut portion so as to have a smooth cut surface.

The stair nosing member 10 thus obtained is used by being attached to the stair tread 1 shown in FIG. 5, and the attached state is shown in FIGS. 6 and 7.

In the staircase tread 1, an upper cutout 5 is formed by cutting out the upper surface side of the front end.
The lower cutout 4 is formed by cutting out the lower surface of the front end. The upper cutout 5 is formed so that the upper surface of the horizontal portion 13 is substantially flush with the upper surface of the main body of the stair tread 1 when the stair nosing member 10 is attached to the stair tread 1. The groove 2 into which the hanging piece 16 of the groove is fitted is engraved.
Are formed. Further, a decorative material 6 is stuck on the surface behind the chamfered portion of the stair tread 1. This cosmetic material 6
It is preferable to use a material that is designed in synchronization with the decorative material 12 of the nostril member 10.

As described above, the chamfered portion 3 is formed so as to have the same inclination angle as the side surface of the groove 15 having a trapezoidal cross-sectional shape, whereby the groove 21 having substantially the same shape as the groove 15 is formed. Is formed at the joint between the nose member 10 and the stair tread 1. Further, the chamfered portion 3 is formed such that the lower end thereof is flush with the upper rear end corner 19 of the stair nosing member 10 attached to the stair tread 1. The chamfered portion 3 is exposed to the outside adjacent to the nostril member 10 in a state where the nostril member 10 is attached. It is preferable not to give a feeling of strangeness.

To attach the stair nosing member 10 to the stair tread 1, the stair member 10 is slid from the front or side with respect to the upper cutout 5. Since the nasal member 10 is a synthetic resin extruded product and has a certain degree of flexibility, the horizontal portion 13 initially has the vertical portion by the amount of the hanging piece 16 even when it is slid from the front. 14 is slidable in a state where it is expanded with respect to 14, and when it is pushed to the innermost position, the hanging piece 16 is fitted in the groove 2 and is tightly attached. When attaching the nose member 10 to the stair tread 1, the nose member 10 may be fixed using an adhesive or a double-sided tape, if necessary, in order to prevent the nose member 10 from shifting or coming off during stair walking. .

In this manner, the nostril member 10 is attached to the stair tread 1.
Is attached, the hanging piece 16 of the stair nosing member 10 is housed in the groove 2 of the stair tread 1 (FIG. 6). Thereby, the gap formed at the joint between the stair tread 1 and the nose member 10 is closed. In addition, the decorative material 6 of the stair tread 1 and the decorative material 12 of the stair nosing member 10 are designedly synchronized with each other,
The decorative surface is continuous over the stair tread 1 and the nose member 10, so that a uniform appearance as if it were constituted by one member can be given. In the chamfered portion 3, since the base material surface of the stair tread 1 is exposed, it is preferable to apply a colored coating synchronized with the decorative materials 6, 12 to this portion.

FIG. 8 shows a nostril member 20 according to another embodiment of the present invention.
Members that are substantially the same as 0 are denoted by the same reference numerals, and description thereof is omitted. In the above-mentioned nostril member 10, the base material horizontal portion 1
Although the concave groove 15 is provided in 3, the nose member 20 is provided with a plurality of ridges 21 extending over the entire width of the base material horizontal portion 13. The cross-sectional shape of the ridge 21 is square,
It is arbitrary such as a rectangle and a trapezoid. The height of the ridges 21 can also be set as appropriate, but if there is too much height difference from the bottom surface (the surface of the horizontal portion 13), dust tends to accumulate between the plurality of ridges 21 and clean it. It is also difficult to perform the operation, and it is easy to give a feeling of discomfort or discomfort when walking on the stairs. Therefore, it is generally preferable to provide the ridge 21 with a height difference of about 0.5 to 3.0 mm.

When such a ridge 21 is provided, the ridge 21 has a trapezoidal cross-sectional shape such that the upper surface thereof is substantially flush with the upper surface of the tread plate 1, and the inclination angle of the side surface is adjusted to the chamfered portion 3 of the tread plate 1. Nose member 21 and tread plate 1
It is preferable to form a groove in synchronism with the groove between the ridges 21 at the joint between them when attached.

[0043]

According to the present invention, the rear end portion of the base material is made a right angle, and the decorative material is stuck to the end portion without sticking out from the end portion in a simple manner. It can be manufactured, and the manufacturing cost can be reduced.

Further, since two nosing members can be manufactured simultaneously in one manufacturing process, this is an efficient manufacturing method.

In the nosing member manufactured by the method of the present invention, the hanging piece is fitted into the groove of the tread when attached to the stair tread, thereby closing the gap formed at the joint between the tread and the nosing member. Therefore, shading due to the gap does not occur, the appearance can be prevented from being deteriorated, and dust can be prevented from entering the gap.

Further, in the nostril member manufactured by the method of the present invention, the decorative material is stuck to the rear end portion exactly, so that the base material is not exposed and the decorative material does not protrude. A continuous decorative surface can be provided between the tread and the tread, and the nostril member has an appearance as if it were integral with the stair tread, greatly contributing to the improvement of design.

When the molded member is cut in the same direction as the extruding direction, it is cut at a right angle to the horizontal portion of the molded member, thereby making it possible to manufacture a nose member having a rear end corner formed at a right angle. No shading occurs at the joint when attached to

[Brief description of the drawings]

FIG. 1 is a sectional view showing a molded body used in a manufacturing method according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a nasal member obtained by cutting the molded body of FIG. 1 along a center line X in the width direction.

FIG. 3 is an enlarged sectional view showing the vicinity of a rear end corner of the upper surface of the nostril member of FIG. 2;

FIG. 4 is a cross-sectional view showing a molded body used in another embodiment of the present invention to manufacture the nasal member of FIG. 2;

FIG. 5 is a cross-sectional view showing the shape of the front end of a stair tread to which the nose member of FIG. 2 is attached.

FIG. 6 is a sectional view showing a construction state (fitting structure) in which the nosing member of FIG. 2 is attached to the stair tread of FIG. 5;

FIG. 7 is an enlarged cross-sectional view of a joint between a stair nosing member and a stair tread in the fitting structure of FIG. 6;

FIG. 8 is a cross-sectional view showing another nasal member that can be manufactured by the method of the present invention.

FIG. 9 is a cross-sectional view showing a structure for accommodating a nostril member according to the related art.

FIG. 10 is an enlarged cross-sectional view of a joint between a stair nosing member and a stair tread in the fitting structure of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stair step board 2 Groove part 3 Chamfer part 4 Lower cutout part 5 Upper cutout part 6 Decorative material 10 Nose member 11 Base material 12 Decorative material 13 Horizontal part of base material 14 Vertical part of base material 15 Depression groove 16 Hanging piece 17 Fine Projection 18 Locking piece 19 Upper rear corner 20 Upper nose member 21 Convex ridge 30 Molded body 31 Left locking piece 32 Left vertical part 33 Center hanging part 34 Horizontal part 35 Right locking piece 36 Right vertical part 37 Concave part 38 Makeup Material 40 Molded body 41 Surplus part 42 Cosmetic material

Claims (2)

[Claims] An approximately L having a horizontal portion and a vertical portion connected to one end of the horizontal portion by extruding a synthetic resin.
After forming a molded body having a V-shaped cross-section and attaching a decorative material on the surface of the molded body, the molded body on which the decorative material is adhered is the other end of the horizontal portion where the vertical portion is not continuous. Cut in the same direction as the extrusion direction at a predetermined location, on the surface of a substantially L-shaped cross-sectional substrate having a vertical portion covering the front surface of the stair tread and a horizontal portion covering the front end upper surface of the tread. A method for manufacturing a nostril member, comprising manufacturing a nostril member to which a cosmetic material is adhered. 2. A molded article having a substantially U-shaped cross section which is symmetrical in the width direction having a horizontal portion and a pair of vertical portions connected to both ends of the horizontal portion by extrusion molding a synthetic resin. After forming and sticking a decorative material on the surface of the molded body, the molded body with the decorative material attached is divided into two along the center line in the width direction to vertically cover the front surface of the tread of the stairs. A step portion and a horizontal portion covering an upper surface of a front end portion of the tread plate, wherein at the same time, two nose members of the same shape are formed by sticking a decorative material on the surface of a base material having a substantially L-shaped cross section. Nose member manufacturing method.