JP2011246963A - Covering material for stairs - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a covering material for stairs that shows excellent construction workability at low temperatures and hardly causes damages such as a crack.SOLUTION: A sheet-like thermoplastic resin covering material for stairs that is attached to the surface of a stair structure part includes a tread attachment part 2 that is mainly bonded to a tread of the stair structure part, a riser attachment part 4 that is mainly bonded to a riser of the stair structure part, a band-shaped boundary part 6 that is between the tread attachment part 2 and the riser attachment part 4 and extends in one direction, and a nosing part 8. In the band-shaped boundary part 6, a plurality of linear compression parts 10 that extend in parallel to each other in a ruled line shape along the extending direction of the band-shaped boundary part 6 are formed on the side of the face that is arranged opposite to the stair structure part. The linear compression parts 10 have a thickness smaller than the periphery.

Description

  The present invention relates to a staircase covering material to be affixed to the surface of a staircase structure and a method for manufacturing the same.

  In recent years, outside staircases such as large-scale apartments, from the standpoints of improving cushioning, noise prevention, rust prevention and aesthetics, vinyl chloride resin etc. A sheet-like staircase covering material made of a thermoplastic resin is affixed. This staircase covering material is primarily affixed to the tread surface of the staircase structure portion, but has also been affixed to the kick surface of the staircase structure portion. In the latter case, separate members may be attached to the tread surface and the kick surface, but recently, an integral staircase covering material is applied across the tread surface and the kick surface. . Such a staircase covering material includes, in particular, ease of manufacturing, transportability, and ease of product inventory management, and the kicking surface connected to one side of the tread surface pasting portion and the tread surface pasting portion. What consists of the part for a sticking surface sticking and the nose part connected to the other side of the said part for sticking a tread surface is utilized.

  In such an integrated staircase covering material, from the viewpoint of workability when pasting on the surface of the staircase structure part at the work site, at the boundary part between the tread surface pasting part and the kick surface pasting part, It is also conceivable to provide a bent portion according to the shape of the staircase structure portion. However, in that case, it is not possible to cope with fluctuations in the tread width of the staircase structure portion, and manufacturability, transportability and merchandise inventory management are reduced.

  Therefore, an integrated staircase covering material is generally produced in a series of flat sheets in which the tread surface affixing part and the kick surface affixing part are formed into a series of flat sheets, and at the time of construction, It is bent at a required position and applied to the surface of the staircase structure. In this case, it has been proposed to form a structure for facilitating bending work during construction at the boundary between the tread surface pasting portion and the kick surface pasting portion.

  For example, Patent Document 1 proposes forming a plurality of cuts having a required cross-sectional shape as a structure for facilitating bending work during construction. Further, for example, Patent Document 2 proposes forming a thinned portion having a required depth and a required width as a structure for facilitating bending work during construction.

Japanese Utility Model Publication No. 60-14041 JP 11-315624 A

  However, in the structure described in the above-mentioned Patent Document 1, the cut is made, for example, by cutting with a cutter having a required cross-sectional shape, and the depth of the cut is about the same as the thickness of the backing layer, for example. It is about 1/3 of the thickness. In the structure described in Patent Document 2, the depth of the thinned portion is, for example, 1/2 of the entire sheet thickness.

  In such a conventional structure, although the bending workability can be improved, the sheet may be cracked during or after the work by bending the thin portion. In particular, in a cold region or at a low temperature in winter, such a possibility increases because the flexibility of the sheet tends to decrease.

  In view of the above circumstances, an object of the present invention is to provide an integrated staircase covering material that has good workability even at low temperatures and is less likely to cause damage such as cracks. It is in.

  Moreover, the other object of this invention is to provide the manufacturing method suitable for manufacture of the above covering materials for steps.

According to the present invention, to achieve any of the above objects,
A staircase covering material made of a thermoplastic resin that is affixed to the surface of the staircase structure,
The stair covering material mainly includes a tread surface pasting portion joined to a tread surface of the stair structure portion, a kick surface pasting portion joined mainly to a kick surface of the stair structure portion, and the tread surface pasting. A belt-like boundary portion extending in one direction between the portion for use and the portion for attaching the kick surface,
A plurality of linear compression portions extending in a ruled line shape in parallel with each other along the extending direction are formed on the strip-shaped boundary portion on the side facing the staircase structure portion, Stair covering material characterized in that the linear compression part has a thickness smaller than the surroundings,
Is provided.

  In one aspect of the present invention, the step covering material is made of a vinyl chloride resin. In one aspect of the present invention, the region other than the linear compression portion of the belt-shaped boundary portion, the region of the tread surface pasting portion adjacent to the belt-shaped boundary portion, and the region of the kick surface pasting portion have a thickness of 1 .5 to 3.5 mm. In one aspect of the present invention, the band-shaped boundary portion has a width of 35 to 105 mm.

  In one aspect of the present invention, the linear compression portion has a thickness that is 10 to 70 μm smaller than the surroundings. In one aspect of the present invention, the linear compression portion has a width of 0.45 to 1.5 mm. In one aspect of the present invention, the linear compression portions are arranged at a pitch of 3 to 7 mm. In one aspect of the present invention, 10 to 25 linear compression portions are formed.

In addition, according to the present invention, to achieve any of the above objects,
A method for manufacturing the above-described staircase covering material,
A thermoplastic resin sheet material having a first portion corresponding to the tread surface pasting portion, a second portion corresponding to the kick surface pasting portion, and a third portion corresponding to the belt-like boundary portion is prepared. And
For the staircase, wherein the plurality of linear compression portions are formed by pressing a pressing blade in a ruled line shape against one surface of the third portion, thereby producing the belt-like boundary portion. A method for producing a covering material,
Is provided.

  In one aspect of the present invention, a plurality of pressing blades arranged in a ruled line shape corresponding to the plurality of linear compression portions are pressed against one surface of the third portion at a time. In one aspect of the present invention, the circular pressing blade is pressed against one surface of the third portion.

  According to the tread covering part of the present invention for the tread surface pasting part / kick surface pasting part integrated type staircase covering material, the linear compression part is formed at the belt-like boundary part according to the width of the tread surface of the stair structure part during construction. It is easy to fold the covering material for stairs by forming a fold line in the extending direction of the material, and it is easy to maintain the folded state after construction, so construction workability is good even at low temperatures, The risk of occurrence of damage such as cracks is reduced.

  Moreover, according to the manufacturing method of the integrated stair covering material of this invention, the above integrated stair covering materials can be manufactured easily.

It is a schematic diagram which shows one Embodiment of the covering material for stairs by this invention, (a) shows a partial top view, (b) shows a partial side view, (c) shows a partial bottom view. It is a typical partial expanded sectional view of the coating | covering material for stairs of embodiment of FIG. It is a schematic diagram which shows one Embodiment of the manufacturing method of the covering material for stairs of this embodiment of FIG. It is typical sectional drawing which shows the usage condition of the coating | covering material for stairs of embodiment of FIG. It is explanatory drawing of the measuring method of the float which shows the flexibility of the coating | covering material for stairs. It is explanatory drawing of the measurement work of the float which shows the flexibility of the covering material for stairs in an Example. It is explanatory drawing of the measurement work of the float which shows the flexibility of the covering material for stairs in an Example. It is a figure which shows the flexibility of the coating | covering material for stairs concerning an Example. It is a figure which shows the flexibility of the coating | covering material for stairs concerning a comparative example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic view showing an embodiment of a stair covering material according to the present invention, where (a) shows a partial plan view, (b) shows a partial side view, and (c) shows a partial bottom view. The figure is shown. FIG. 2 is a schematic partial enlarged cross-sectional view of the stair covering material of the present embodiment. FIG. 3 is a schematic diagram showing an embodiment of a method for manufacturing a staircase covering material according to this embodiment.

  As shown in FIG. 1, the stair covering material of this embodiment includes a tread surface pasting portion 2 that is mainly joined to the tread surface of the staircase structure portion, and a kick that is mainly joined to the kick surface of the staircase structure portion. A portion 4 for sticking to the surface, a belt-like boundary portion 6 extending in one direction (vertical direction in FIG. 1 (c)) between the portion 2 for sticking the tread surface and the portion 4 for sticking the kick surface, and for sticking the tread surface It has a nose 8 connected to part 2.

  The belt-like boundary portion 6 has a ruled line shape (straight line) parallel to each other along the extending direction of the belt-like boundary portion 6 on the side facing the staircase structure (ie, the bottom surface: the lower surface in FIG. 1B). A plurality of linear compression portions 10 extending in the shape) are formed. Although details of the linear compression part 10 will be described later, the linear compression part 10 is formed to have a thickness smaller than that of the surrounding area.

  The staircase covering material is generally in the form of a sheet except that the nosing portion 8 is attached, and is made of a thermoplastic resin such as a vinyl chloride resin. The thickness of the region other than the linear compression portion 10 of the belt-shaped boundary portion 6, the region of the tread surface pasting portion 2 adjacent to the belt-shaped boundary portion, and the region of the kick surface pasting portion 4 is 1.5 to 3.5 mm, for example. It is. The belt-like boundary portion 6 has a width of 35 to 105 mm, for example.

  It is preferable that the thickness of the linear compression part 10 is 10 to 70 μm smaller than the surroundings. The linear compression part 10 having such a thickness as to form a recess having such a depth can be easily manufactured by a manufacturing method described later.

  The linear compression part 10 preferably has a width W of 0.45 to 1.5 mm. The linear compression part 10 having such a width can be easily manufactured by a manufacturing method described later.

  The linear compression section 10 preferably has an arrangement pitch P of 3 to 7 mm. The linear compression part 10 having such a width can be easily manufactured by a manufacturing method described later.

  For example, 10 to 25 linear compression portions 10 are formed.

  Next, an embodiment of a method for manufacturing a staircase covering material according to this embodiment will be described.

  First, a thermoplastic resin sheet material is prepared. This sheet material has a first portion corresponding to the tread surface pasting portion 2, a second portion corresponding to the kick surface pasting portion 4, and a third portion corresponding to the belt-like boundary portion 6. The configurations of the first portion and the second portion are the same as those of the tread surface pasting portion 2 and the kick surface pasting portion 4 of the stair covering material, respectively. The configuration of the third portion is the same as that of the belt-like boundary portion 6 except that the linear compression portion 10 is not formed.

  Next, as shown in FIG. 3, the linear compression portion 10 is formed by pressing the pressing blade T against one surface of the third portion (the surface to be the bottom surface of the staircase covering material). The pressing blade T extends in a long shape in a direction perpendicular to the paper surface in FIG. 3, and is a pressing blade (ruled line blade) with respect to one surface of the third portion (surface to be the bottom surface of the staircase covering material). T is pressed like a ruled line. Thereby, the strip | belt-shaped boundary part 6 is produced.

  In order to form the plurality of linear compression portions 10, the plurality of pressing blades T arranged in a ruled line shape corresponding to the plurality of linear compression portions are pressed against the one surface of the third portion at a time. Is preferred. This method can be implemented by using a general sheet cutting machine and using a pressing blade whose tip section has an arc shape instead of the Thomson blade for sheet cutting. In addition, using a sheet cutting machine, cutting to a required shape by a Thomson blade and pressing for forming the linear compression portion 10 by the pressing blade T can be performed at a time. By such a method, a plurality of linear compression parts 10 can be formed efficiently in a short time.

  Moreover, as another method of forming the plurality of linear compression portions 10, there is a method of pressing against the one surface of the third portion while rolling a circular pressing blade.

  As described above, the linear compression unit 10 is provided in the surrounding region (for example, the region other than the linear compression unit 10 in the belt-like boundary portion 6, the region of the tread surface pasting portion 2 adjacent to the belt-like boundary portion 6, and the kick surface application). Since the pressing force is applied in a ruled line pattern to the sheet-like material integrally formed with the region 4 for use), the linear compression portion 10 and the region in the vicinity thereof are surrounded by ( For example, it is considered that the state of the internal stress is different from the region of the tread surface pasting portion 2 adjacent to the belt-like boundary portion 6 and the region of the kick surface pasting portion 4).

  Finally, the nose portion 8 is joined to the tread surface pasting portion 2.

  FIG. 4 is a schematic cross-sectional view showing a usage pattern of the stair covering material of the embodiment.

  In the staircase structure, after the staircase covering material is attached to the lower step, the staircase covering material is attached to the step. First, the tread surface pasting portion 2 is joined to the tread surface 12 of the staircase structure portion. At that time, the nose portion 8 is superimposed on the lower-step kick surface pasting portion. Next, the belt-like boundary portion 6 is bent at an appropriate position according to the step width. On the side of the surface facing the staircase structure portion, a plurality of linear compression portions 10 extending in a ruled line shape in parallel to each other are formed in the belt-like boundary portion 6 so that the direction of bending is facilitated and repulsive. Elasticity is small. Finally, the kick surface pasting portion 4 is joined to the kick surface 14 of the staircase structure portion.

  In the present embodiment, during construction, depending on the width of the tread surface of the staircase structure portion, a folding line in the extending direction of the linear compression portion 10 may be formed at the belt-like boundary portion 6 to bend the stair covering material. Easy. That is, construction workability is good. In addition, the risk of occurrence of damage such as cracks is reduced even at a low temperature of 10 ° C. or less, for example, 7 ° C. Moreover, it is easy to maintain the bent state even after construction, and the risk of occurrence of damage such as cracks is reduced. This is presumed to be because the linear compression portion 10 has directionality, and furthermore, the internal stress distribution in the belt-like boundary portion 6 has similar directionality anisotropy.

  Moreover, according to the manufacturing method of this embodiment, the above integrated staircase covering materials can be easily manufactured.

  Hereinafter, the present invention will be further described by way of examples.

  The covering material for stairs which concerns on the said embodiment was manufactured.

  First, a vinyl chloride resin sheet material having a plurality of layers was prepared. As the press blades (ruled line blades), 12 blades having a thickness of 0.9 mm and a cross section of the pressing tip portion having an arc shape were arranged in parallel with each other at a pitch of 5 mm. In addition to the cutting blade (Thomson blade), this pressing blade (ruled line blade) is also attached to the required position of the cutting machine, and cut into the required shape, along with the required position of the sheet material (third part corresponding to the belt-like boundary portion) Twelve linear compression parts were created by pressing a pressing blade (ruled line blade).

  Further, a staircase covering material was obtained by joining the nose part. This staircase covering material had a tread surface pasting portion width of 195 mm, a kick surface pasting portion width of 200 mm, and a belt-like boundary portion width of 55 mm.

The flexibility of the obtained staircase covering material was measured. The measurement method is to fold the band-like boundary part of the stair covering material, lock the tread surface application part to the tread surface of the simulated stair structure as shown in FIG. 5, and free the kick surface application part. In this state, the floating distance (a plurality of places) caused by the rebound resilience at the bent portion was measured. Bending is
(A) As shown in FIG. 6, after pressing 5 times with a 20 kg roller,
And (B) 5 reciprocal pressing with a 20 kg roller as in (A) above, and further 180 ° C. pressing with a seam roller as shown in FIG.
Were carried out at temperatures of 35 ° C., 20 ° C. and 7 ° C., respectively.

  For comparison, the flexibility of the vinyl chloride resin sheet material itself (without the linear compression portion (ruled line)) was measured in the same manner.

  The results are shown in Table 1 below. FIG. 8 shows the bending state when the linear compression portion (ruled line) is present at 7 ° C. in FIG. 8B, and FIG. 9 shows the bending state when there is no linear compression portion (ruled line).

In all cases, no cracks occurred.

2 Tread surface pasting portion 4 Kick surface pasting portion 6 Strip boundary portion 8 Nose portion 10 Linear compression portion 12 Tread surface 14 Kick surface T Press blade (ruled line blade)

Claims (11)

A staircase covering material made of a thermoplastic resin that is affixed to the surface of the staircase structure,
The stair covering material mainly includes a tread surface pasting portion joined to a tread surface of the stair structure portion, a kick surface pasting portion joined mainly to a kick surface of the stair structure portion, and the tread surface pasting. A belt-like boundary portion extending in one direction between the portion for use and the portion for applying the kick surface,
A plurality of linear compression portions extending in a ruled line shape in parallel with each other along the extending direction are formed on the strip-shaped boundary portion on the side facing the staircase structure portion, A covering material for stairs characterized in that the linear compression portion has a thickness smaller than that of the surrounding area.   The stair covering material according to claim 1, wherein the stair covering material is made of a vinyl chloride resin.   The region other than the linear compression portion of the belt-like boundary portion, the region of the tread surface pasting portion adjacent to the belt-like boundary portion, and the region of the kick surface pasting portion have a thickness of 1.5 to 3.5 mm. The staircase covering material according to claim 1 or 2, characterized by the above.   The said strip | belt-shaped boundary part is 35-105 mm in width, The covering material for steps as described in any one of Claims 1-3 characterized by the above-mentioned.   5. The staircase covering material according to claim 1, wherein the linear compression portion has a thickness that is smaller by 10 to 70 μm than the surroundings.   The stair covering material according to any one of claims 1 to 5, wherein the linear compression portion has a width of 0.45 to 1.5 mm.   The stair covering material according to any one of claims 1 to 6, wherein the linear compression parts are arranged at a pitch of 3 to 7 mm.   The said linear compression part is formed in 10-25 pieces, The covering material for steps as described in any one of Claims 1-7 characterized by the above-mentioned. A method for producing the covering material for steps according to any one of claims 1 to 8,
A thermoplastic resin sheet material having a first portion corresponding to the tread surface pasting portion, a second portion corresponding to the kick surface pasting portion, and a third portion corresponding to the belt-like boundary portion is prepared. And
For the staircase, wherein the plurality of linear compression portions are formed by pressing a pressing blade in a ruled line shape against one surface of the third portion, thereby producing the belt-like boundary portion. A method for manufacturing a covering material.   The staircase according to claim 9, wherein a plurality of pressing blades arranged in a ruled line shape corresponding to the plurality of linear compression portions are pressed against one surface of the third portion at a time. Method of manufacturing a covering material.   The method for manufacturing a staircase covering material according to claim 9, wherein the circular pressing blade is pressed against one surface of the third portion while rolling.