JP5561858B2 - Skirting board - Google Patents

Description

The present invention also relates to the baseboards.

Conventionally, a baseboard has been installed between the bottom of a wall of a building or the like and the floor to prevent damage and dirt from being hit by human feet, trolleys, wheelchairs, stretchers and vacuum cleaners. ing.
The skirting board comprises a baseboard body made of an elongated strip-shaped board having a predetermined width (for example, an elongated board obtained by processing a synthetic wood board, a resin molded product or the like into a strip shape), and a decorative layer provided on the surface of the baseboard body. And the back surface (surface opposite to the decorative layer) is attached to the wall surface.
Furthermore, for the purpose of preventing a gap with the floor surface, a baseboard in which a packing material made of a soft material is attached to the lower end portion has been proposed (for example, see Patent Documents 1 and 2).

  These baseboards have a packing material attached separately at the bottom, and can be constructed at the lower corner of the wall surface to absorb unevenness (unevenness) on the floor surface.

Published Utility Model Publication No. 3-18345 Published Utility Model Gazette 3-18346

However, in the above-mentioned baseboard, the main body and the packing material are separated, and the packing material is fixed to the main body via an adhesive layer. Since the above-mentioned baseboard is constructed in a state where the packing material is pressed against the floor surface, there has been a problem of peeling from the main body over time.
In addition, since the baseboard is repeatedly subjected to impacts caused by the contact of human feet, carts, wheelchairs, stretchers and vacuum cleaners, there is a problem that peeling further proceeds.

  Furthermore, the conventional baseboard has a problem in that the packing material is fixed to the main body by the adhesive layer, so that the flexibility is low, and the rigidity of the packing has not been studied, and the uneven absorption is not sufficient. was there.

This invention is made | formed in view of said situation, and it makes it a subject to provide the baseboard which is excellent in the designability and the uneven absorption property, and an uneven absorption piece does not peel.

In the baseboard according to the present invention, a main body plate and a non-land absorbing piece are integrally formed of a flexible resin , and a corner portion is provided at a lower end on the surface side of the main body plate, and the main body plate is JIS K7106. The rigidity at 20 ° C. measured in accordance with the above is 8-30 MPa, and the non-land absorbing piece is located at the center of the bottom surface of the main body plate as viewed in the longitudinal section, and the thickness decreases toward the bottom and curved to baseboards front, Ri stiffness is 2 to 10 MPa der at 20 ° C. which is measured in accordance with JIS K7106, the stiffness of the body plate is greater than the stiffness of the uneven surface absorption piece Features.

According to such a configuration, by providing the corners at the lower part of the main body plate, it is possible to show a design property that creates a shadow at the lower part of the baseboard and gives a sense of luxury in the construction state.
Moreover, since it has a non-land absorbing piece, it is excellent in design and non-land absorbing properties, and since the non-land absorbing piece is integrally formed with the main body plate, a baseboard from which the non-land absorbing piece does not peel can be obtained. In addition, the non-land absorbing piece is located in the center of the bottom surface of the main body plate as viewed in the longitudinal section, and as it goes downward, the thickness becomes thinner and is curved toward the baseboard surface. Since it becomes easy to deform | transform according to the shape of a floor surface, the baseboard which was further excellent in the uneven absorption can be obtained.
Moreover, since the rigidity of a main body board is 8-30 Mpa, a baseboard can be constructed according to the shape of a wall surface.

Further, baseboards of the present invention, the sectional shape of the corner portion is preferably perpendicular der Rukoto.

According to such a configuration, since the cross-sectional shape of the corner is a right angle, a right-angle shadow can be created in the lower part of the main body plate 2 .

  Moreover, it is preferable that the baseboard which concerns on this invention is further provided with the design layer on the surface of a main-body board.

  According to this structure, a desired design can be easily given to a main body board by a design layer.

Moreover, it is preferable that the distance between the corner | angular part of a main body board and the surface side root part of a non-land | shore absorption piece is 0.5 mm or more.

  ADVANTAGE OF THE INVENTION According to this invention, the baseboard which is excellent in the designability and the uneven absorption property, and an uneven absorption piece does not peel can be obtained.

It is a longitudinal cross-sectional view of the baseboard of this invention. It is a longitudinal cross-sectional view of the baseboard of another form of this invention. It is a figure showing the construction state of the baseboard of this invention. It is the figure which showed creation of the shadow by the baseboard of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, it should be noted that the length, thickness, and size of each part are different from actual ones.

  In FIG. 1, the baseboard 1 of the present invention is integrally configured by a main body plate 2 and a non-land absorbing piece 3 provided on the lower surface of the main body plate 2. As shown in FIG. 3, the baseboard 1 is constructed by bringing the lower end portion of the non-land absorbing piece 3 into contact with the floor surface X and bonding the back surface 2 b of the main body plate 2 to the wall surface lower corner portion Y.

(Main body plate)
The main body plate 2 is a member that is constructed in a band shape at the lower corner of the wall surface and imparts design properties. In FIG. 1, the main body plate 2 is formed in a rectangular plate shape. Moreover, by providing the right-angled corner | angular part 2e in the lower part of the main-body board 2, the design property which creates a shadow in the lower part of a baseboard and can feel a high-class feeling by a construction state can be shown. This shading can be further emphasized by providing the non-land absorbing piece 3 at a position lowered from the front surface 2a of the main body plate 2 to the back surface side. Moreover, the position of the corner | angular part 2e can be easily set to the position where a shadow can be emphasized more from the length of the non-land | surface absorption piece 3. FIG.

  The thickness 2t of the main body plate 2 is not particularly limited, but is preferably 1 to 10 mm. It is more preferably 2 to 7 mm, and further preferably 3 to 5 mm. If the main body plate 2 is too thick, it is too conspicuous, and there is a possibility that the design of the lower corner of the wall surface is impaired in the construction state. On the other hand, if it is too thin, scratch resistance due to contact with a vacuum cleaner or feet may be inferior, and it may be too soft and workability may be reduced. In addition, it becomes difficult to create a right-angled shadow at the lower part of the main body plate 2.

  The height 2h of the main body plate 2 is not particularly limited, but is preferably 15 to 70 mm. It is more preferably 20 to 55 mm, and further preferably 30 to 40 mm. If the height 2h is too high, the baseboard 1 is too conspicuous, which may impair the design of the lower wall corner. On the other hand, if it is too low, the area covering the wall surface becomes insufficient, and the effect of preventing damage and dirt adhesion cannot be sufficiently achieved, and the design of the lower corner of the wall surface may be impaired due to lack of balance with the wall surface. In addition, since the adhesion area to the wall surface becomes small, it may be easy to peel off. The height 2h of the main body plate 2 refers to a length in a direction orthogonal to the longitudinal direction of the main body plate 2 (that is, the short direction).

Since the baseboard 1 of this invention is cut | disconnected by desired length at the time of construction, the length of the main-body board 2 is arbitrary.
Conventionally, in the case of a thick baseboard structure that creates a shadow at the bottom of the baseboard, the hardness of the main body plate 2 or the non-land absorbing piece 3 is high and difficult to wind, so considering transportation etc., The baseboard length is preferably 900 mm to 4000 mm. For this reason, the handleability is poor, and when constructed, a joint can be formed within a range of 4000 mm, and the aesthetic appearance may be deteriorated.
In the case of the baseboard 1 of the present invention, the main body plate 2 and the non-land absorbing piece 3 can be integrally formed of a flexible material. This makes it possible to store and transport the skirting board 1 before being rolled up, regardless of the thickness of the structure that creates a shadow in the lower part of the skirting board, so that the length exceeds 4000 mm. But good handling can be secured. For this reason, it can be suitably used with a length of 4 to 20 m, desirably 8 to 15 mm, and more desirably 10 to 13 m. Accordingly, the baseboard 1 of the present invention can be seamlessly constructed over a distance far longer than a thick baseboard that creates a shadow in the lower part of the conventional baseboard.

The baseboard 1 is constructed by applying an adhesive to the back surface 2b and pressing it on the wall surface. As shown in FIG. 1, the upper end 2 d of the back surface 2 b of the main body plate 2 preferably has a shape protruding in the wall surface side horizontal direction. When the upper end 2d of the back surface 2b is flat, when the baseboard 1 is applied to the wall surface, the adhesive applied excessively on the back surface 2b escapes upward, and protrudes from the upper end portion of the baseboard 1 so that it has a beautiful appearance. There is a risk of failure.
However, when the upper end 2d of the back surface 2b has the shape described above, it is possible to suppress the excessive adhesive from protruding from the upper end of the baseboard 1 as shown in FIG. FIG. 3 is a diagram showing a construction state of the baseboard 1 of the present invention, and the upper end 2d of the back surface 2b has the above-described configuration. The adhesive 5 is applied to the back surface 2b of the main body plate 2, and the main body plate 2 is pressed against the lower corner Y of the wall surface.
In FIG. 3, the upper end 2d of the back surface 2b has the above-described configuration. The upper end 2d and the lower wall corner Y are bonded without a gap. For this reason, the protrusion from the upper end part of the baseboard 1 by the adhesive agent 5 apply | coated to the back surface 2b escaping upward can be suppressed.

Further, on the back surface 2b of the main plate 2, as shown in FIG. 1, it is preferable to kick set parallel to the longitudinal direction in the groove 2c of the main plate 2. By having the groove 2c, the convex portion of the groove 2c can be firmly bonded to the wall surface by being crimped to the wall surface, and excessive adhesive can be accumulated in the concave portion of the groove 2c. Can prevent the adhesive from protruding to the upper end of the baseboard 1.

  A plurality of grooves 2c are preferably provided on the back surface 2b. The number of the grooves 2c is appropriately set according to the height 2h of the main body plate 2. The interval between the grooves 2c is preferably 1 to 10 mm. It is more preferably 2 to 8 mm, and further preferably 3 to 5 mm. If the distance is too large, it is not possible to secure a sufficient volume for retaining the excess adhesive, and the protrusion of the adhesive to the upper end of the baseboard 1 may not be sufficiently suppressed. If the spacing is too small, processing becomes difficult and the strength of the baseboard 1 may be impaired.

  The depth of the groove 2c is appropriately set according to the thickness of the main body plate 2, but is preferably 0.3 mm or more and 3 mm or less. 0.5 mm or more and 2 mm or less are more preferable, and 0.8 mm or more and 1 mm or less are more preferable. If the groove 2c is too deep, the strength of the main body plate 2 may be impaired. Further, in the construction state, there is a possibility that unevenness that is visible from the surface 2a of the main body plate is generated. On the other hand, if the groove 2c is too shallow, it is not possible to secure a sufficient volume for retaining the excess adhesive, and the protrusion of the adhesive to the upper end of the baseboard 1 may not be sufficiently suppressed.

  The body plate 2 preferably has a stiffness of 8 to 30 MPa at 20 ° C. measured in accordance with JIS K7106. More preferably, it is 10-25 MPa, and it is more preferable that it is 12-20 MPa. If the degree of rigidity is too high, it may be difficult to construct along the shape of the wall surface. On the other hand, if the rigidity is too low, workability may be inferior when constructing on the wall surface.

  The main body plate 2 preferably has a stiffness of 40 to 80 MPa at 5 ° C. measured in accordance with JIS K7106. The pressure is more preferably 50 to 70 MPa, and further preferably 55 to 65 MPa. If the rigidity at 5 ° C. is too high, the non-land absorbing piece 3 becomes hard in the winter when the temperature is low, and it may be difficult to perform the construction along the shape of the wall surface. On the other hand, if the rigidity at 5 ° C. is too low, the strength is not sufficient and the main body plate 2 may be damaged.

The main body plate 2 is made of a synthetic resin. Examples of the synthetic resin include vinyl chloride resins, olefin resins, vinyl acetate resins, ethylene-vinyl acetate copolymers, acrylic resins such as ethylene methacrylate resins, amide resins, ester resins, olefin elastomers, and styrene resins. Various elastomers such as an elastomer, rubber and the like can be mentioned.
The synthetic resin may be non-foamed or foamed.

In addition to the synthetic resin, various additives are usually blended in the resin composition for forming the main body plate for forming the main body plate.
As the additive, conventionally known additives can be used, and examples thereof include a filler, a plasticizer, a flame retardant, a stabilizer, an antioxidant, a lubricant, a colorant, and a foaming agent.

  A conventionally well-known thing can be used as said plasticizer, For example, a dioctyl phthalate (DOP) etc. are mentioned. The rigidity of the main body plate 2 can be adjusted by the amount of the plasticizer added. It is preferable that content of the plasticizer contained in the resin composition for main body board formation is 30-70 mass parts with respect to 100 mass parts of synthetic resins. More preferably, it is 40-60 mass parts, and it is still more preferable that it is 45-55 mass parts. If the plasticizer content is too large, the plasticizer may bleed from the surface of the main body plate 2. On the other hand, if the amount of the plasticizer is too small, the rigidity of the main body plate 2 becomes high, and it may be difficult to perform the construction along the shape of the wall surface.

(Non-land absorption piece)
The non-land absorbing piece 3 is a member that is formed downward from the lower surface of the main body plate 2 and absorbs unevenness of the floor surface.

  In FIG. 1, the non-land absorbing piece 3 becomes thinner and curves toward the baseboard surface as it goes downward. The uneven absorption piece 3 preferably has the shape described above. Since the thickness is reduced as it goes downward, it can exhibit high uneven absorption. Moreover, since it curves to the baseboard surface side as it goes below, it is difficult to collect the dust on a floor surface between the non-land absorption piece 3 and a wall surface.

  The height 3 h of the non-land absorbing piece 3 is preferably 2 to 6 mm, and more preferably 3 to 5 mm. If the height 3h of the non-land absorbing piece 3 is too high, a shadow cannot be created in the lower part of the main body plate, which may impair the design. On the other hand, if the height 3h of the non-land absorbing piece 3 is too low, the length of the non-land absorbing piece 3 is not sufficient, and it may be difficult to absorb the non-land.

  The uneven absorption piece 3 has a rigidity of 2 to 10 MPa at 20 ° C. measured in accordance with JIS K7106. It is preferably 3-8 MPa, more preferably 4-7 MPa. If the rigidity is too high, unevenness may not be absorbed sufficiently. On the other hand, if the rigidity is too low, the strength is not sufficient, and the non-land absorbing piece 3 may be easily damaged.

    The uneven absorption piece 3 preferably has a rigidity at 5 ° C. of 5 to 20 MPa measured according to JIS K7106. It is more preferably 7 to 15 MPa, and further preferably 9 to 12 MPa. If the rigidity at 5 ° C. is too high, the non-land absorbing piece 3 becomes hard in winter when the temperature is low, and the non-land absorbing property is inferior, and construction in winter may be difficult. On the other hand, if the rigidity at 5 ° C. is too low, the strength is not sufficient, and the non-land absorbing piece 3 may be easily damaged.

  When the above-mentioned non-land absorbing piece 3 is small, the rigidity of the non-land absorbing piece 3 is measured by cutting the non-land absorbing piece from the baseboard with a cutter or the like and melting it to obtain a width of 2.5 cm and a thickness. A test piece for measuring rigidity of 2 mm can be formed, and the rigidity of the test piece can be measured.

  The uneven absorption piece 3 is made of a synthetic resin. Examples of the synthetic resin include vinyl chloride resins, olefin resins, vinyl acetate resins, ethylene-vinyl acetate copolymers, acrylic resins such as ethylene methacrylate resins, amide resins, ester resins, olefin elastomers, and styrene resins. Various elastomers such as an elastomer, rubber and the like can be mentioned. The synthetic resin may be non-foamed or foamed.

  In addition to the synthetic resin, various additives are usually blended in the resin composition for forming the non-land absorbing piece 3 for forming the non-land absorbing piece 3. As the additive, conventionally known additives can be used, and examples thereof include a filler, a plasticizer, a flame retardant, a stabilizer, an antioxidant, a lubricant, a colorant, and a foaming agent.

  A conventionally well-known thing can be used as said plasticizer, For example, a dioctyl phthalate (DOP) etc. are mentioned. The rigidity of the uneven absorption piece 3 can be adjusted by the amount of the plasticizer added. It is preferable that content of the plasticizer contained in the resin composition for forming a non-land absorbing piece is 50 to 90 parts by mass with respect to 100 parts by mass of the synthetic resin. More preferably, it is 60-80 mass parts, and it is further more preferable that it is 65-75 mass parts. If the content of the plasticizer is too large, the plasticizer may bleed from the surface of the uneven absorption piece 3. On the other hand, if the amount of the plasticizer is too small, the rigidity of the non-land absorbing piece 3 becomes high, and there is a possibility that the non-land can not be sufficiently absorbed.

  In the baseboard 1 of the present invention, a main body plate 2 and a non-land absorbing piece 3 are integrally formed. For this reason, it is possible to obtain a baseboard from which the non-land absorbing piece does not peel off. In the longitudinal sectional view of FIG. 1, the non-land absorbing piece 3 is formed downward from the center of the lower surface of the main body plate 2. Thus, the position of the non-land absorbing piece 3 on the lower surface of the main body plate 2 is preferably the center in the longitudinal sectional view of the baseboard 1. If the position of the non-land absorbing piece 3 is too close to the surface of the main body plate 2, a shadow cannot be created below the baseboard 1, and the design may be impaired. On the other hand, if the non-land absorbing piece 3 is located on the back side of the main body plate 2 too much, dust may easily accumulate between the main body plate 2 and the floor surface.

  Hereinafter, the manufacturing method of the baseboard 1 is demonstrated. The skirting board 1 can be manufactured by a manufacturing method in which the main body plate and the non-land absorbing piece are integrally formed by an extruder.

  The above manufacturing method adjusts the resin composition for forming the main plate 2 and the resin composition for forming the non-land absorbing piece 3 by blending predetermined amounts of the above-mentioned synthetic resin, filler, etc., and melt kneading each. And the step (2) of extruding these resin compositions with an extruder and integrally forming the baseboard 1 of the present invention.

  The temperature of the melt kneading in the step (1) is preferably 100 to 250 ° C. The melting method is not particularly limited as long as a uniform composition can be obtained, and examples thereof include kneading with an extruder, kneading with a Banbury mixer, and kneading with a Henschel mixer. Among these, kneading by a shaft extruder is preferable in that it can be shifted to extrusion immediately after kneading, and the baseboard of the present invention can be easily formed integrally. As the screw extruder, a multi-screw extruder such as a single screw extruder or a twin screw extruder can be appropriately used depending on the type of resin.

The step (2) is a step of integrally molding the baseboard 1 of the present invention by extruding the resin composition melt-kneaded in the step (1) with an extruder. According to the above step (2), the main plate 2 and the non-land absorbing piece 3 having different rigidity can be integrally formed, and the desired shape of the main plate can be selected by arbitrarily selecting the shape of the T-die. The baseboard 1 which has 2 and the uneven absorption piece 3 can be obtained easily.
In the step (2), the resin composition for forming the non-land absorbent piece 3 that has been separately melt-kneaded is injected into the path through which the resin composition for forming the main body plate 2 is extruded by an extruder, and is pressed from the same T die. The method of taking out can be used conveniently.
If this method is used, the baseboard 1 can be easily formed integrally by a series of extrusion processes. In addition, although the main plate 2 and the non-land absorbing piece 3 are formed of resins having different degrees of rigidity, the formed baseboard 1 is completely integrated, so that they are not separated from each other.
Furthermore, a baseboard having a multilayer structure (for example, two layers) in which the surface layer made of the second resin composition is laminated together with the non-land absorbing piece 3 on the surface of the baseboard 1 can be used. The thickness of the surface layer is not particularly limited, and it is usually desirable that the surface layer be formed to have a thickness of about 0.05 to 0.2 mm. By laminating such a surface layer, the surface scratch resistance of the baseboard can be improved, and since it does not whiten even when bent, the decorativeness of the baseboard is not impaired.

According to the baseboard 1 and its manufacturing method described above, since the non-land absorbing piece 3 is provided on the lower surface of the main body plate 2, a shadow 7 is provided between the main body plate 2 and the floor surface X as shown in FIG. Can be created.
FIG. 4 is a diagram showing the creation of shadows by the baseboard 1 of the present invention. As shown in FIG. 4, since the baseboard 1 of the present invention is constructed at the lower corner of the wall surface, light 6 from a light source such as sunlight or a lighting fixture is incident obliquely. For this reason, since the shadow 7 is created between the main body board 2 and the floor surface X, the baseboard 1 of this invention can show the outstanding design property.

  By setting the rigidity at 20 ° C. measured according to JIS K7106 of the non-land absorbent piece 3 to 2 to 10 MPa, the base plate 1 is pressed against the floor surface while having excellent non-land absorbability. Further, the distance between the floor and the corner 2e can be easily maintained without being pressed down. By this, the shadow which is excellent in the design property can be created between the baseboard 1 and the floor surface without the influence of unevenness.

  In addition, since the main body plate 2 and the non-land absorbing piece 3 are integrally formed, the non-land absorbing piece 3 can be used even under severe use conditions such as long-term use, impact due to contact with a vacuum cleaner, temperature change, and the like. There is no peeling from the main body plate 2.

  Moreover, the intrusion of the dust between the non-land absorption piece 3 and the wall surface is effected by forming the non-land absorption piece 3 into a shape that becomes thinner and curves toward the baseboard surface as it goes downward. Can be prevented. The thickness of the non-land absorbing piece 3 is in the range of 0.5 to 2 mm, preferably 0.8 to 1.5 mm at the base, and 0.2 to 1.5 mm, preferably 0.3 to 1.0 mm at the tip. Set by. If the thickness of the non-land absorbing piece 3 is too thin, the strength is insufficient, the non-land absorbing effect and the distance maintaining effect are lowered, and the non-land absorbing piece 3 is easily damaged. On the other hand, if the thickness of the non-land absorbing piece 3 is too thick, the flexibility required for non-land absorbing is impaired, and the non-land absorbing piece 3 becomes conspicuous from the surface side, creating a shadow with excellent design properties. It becomes difficult. Further, the non-land absorbing piece 3 has a shape that becomes thinner and curves toward the baseboard as it goes downward, so that a large space between the corner 2e and the floor surface can be secured. Therefore, it is possible to more clearly create a shadow with excellent design properties.

  FIG. 2 shows a second embodiment of the baseboard 1. In said 1st Embodiment, although the main body board 2 showed the form which comprises a skirting board surface, in this embodiment, the aspect of a structure of a skirting board surface differs from 1st Embodiment.

  The main body plate 2 has a design layer 4 attached to the surface thereof. The design layer 4 is a layer representing a desired design (for example, a pattern). The display method of the design is not particularly limited, but generally, the design is given by printing. Examples of the design include a wood grain pattern, a stone pattern, a metallic luster design, and a single color.

  The design layer 4 is preferably composed of a base film to which makeup is applied. In the above-described case, a desired design can be easily applied to the surface of the baseboard 1 of the present invention by laminating and bonding the base film to one surface of the main body plate 2.

  As resin which forms the said design layer 4, the thing similar to the main body board 2 mentioned above can be used.

The height 4h of the design layer 4 is not particularly limited as long as it is lower than the height 2h of the main body plate 2. However, it is preferable that the height 4h is the same as the height 2h of the main body plate from the viewpoint of excellent design properties.
Moreover, the thickness 4t of the design layer 4 is preferably 0.05 to 1 mm, and more preferably 0.1 to 0.5 mm. If the thickness 4t of the design layer 4 is too thick, the thickness of the baseboard 1 is inevitably increased, so that the design layer 4 is too conspicuous, and there is a possibility that the design of the lower corner of the wall surface is impaired in the construction state. On the other hand, if the thickness 4t of the design layer 4 is too thin, the scratch resistance is lowered, and the design layer 4 may be damaged by contact with a vacuum cleaner or a foot, thereby impairing the design property.

  The method for producing the design layer 4 is not particularly limited, but can be easily produced by a conventionally known molding method such as calendar molding, extrusion molding, knife coating, or the like. Moreover, as a method of sticking the design layer 4 to the main body plate surface 2a, a conventionally known method such as sticking with an adhesive or a double-sided tape can be used.

  Other configurations of the present embodiment are substantially the same as those of the first embodiment, and the description of elements that are the same as those of the first embodiment is omitted. Also in this embodiment, there exists an effect similar to 1st Embodiment.

  In addition, this invention is not restricted to said embodiment, A various change and deformation | transformation are possible.

  For example, in the above-described embodiment, the example in which the thickness of the non-land absorbing piece 3 is reduced and curved toward the front side of the baseboard 1 as it goes downward is not limited thereto. It can be set as the shape curved to the straight direction, or the shape formed toward the downward direction without curving.

Further, in the above-described embodiment, the case where the non-land absorbing piece 3 is formed at the center of the lower surface of the main body plate in the longitudinal cross-sectional view is illustrated. Alternatively, it may be formed on the front side of the lower surface of the main body plate. It is preferable that the distance 2g between the surface 2a side lower end corner 2e of the main body plate 2 and the surface side root 2f of the non-land absorbing piece 3 is 0.5 mm or more. It is more preferably 1 mm or more, and further preferably 1.5 mm or more. If it is arranged on the back side, it is possible to more clearly create a shadow with excellent design.
Moreover, it is preferable that the distance 2k of the back surface 2b side lower-end corner | angular part 2i of the main body board 2 and the back surface side root part 2j of the uneven absorption piece 3 is 0.5 mm or more. It is more preferably 1 mm or more, and further preferably 1.5 mm or more. When arranged on the back side, a predetermined distance from the wall surface can be maintained, and adhesion to the wall surface is facilitated.

  Examples of the present invention will be described below. However, the present invention is not limited to the following examples.

[Example 1]
(Adjustment of resin composition for body plate formation)
100 parts by weight vinyl chloride resin paste, 40 parts by weight filler (calcium carbonate), 50 parts by weight plasticizer (DOP), 0.4 parts by weight Pb-based stabilizer, 0.9 parts by weight Were mixed and sufficiently melt-kneaded at 150 ° C. by a main single screw extruder to prepare a resin composition for forming a main body plate.

(Adjustment of resin composition for forming non-land absorbing piece)
100 parts by weight vinyl chloride resin paste, 40 parts by weight filler (calcium carbonate), 70 parts by weight plasticizer (DOP), 0.4 parts by weight Pb-based stabilizer, 0.9 parts by weight The mixture was sufficiently melt-kneaded at 150 ° C. with a sub-uniaxial extruder to prepare a resin composition for forming a non-land absorbing piece.

Next, in the process of extruding the main body plate forming resin composition with the main uniaxial extruder, the non-land absorbing piece forming resin composition is injected using the sub uniaxial extruder, and the main body plate forming resin composition and The base board in which the main body board and the non-land absorption piece were integrally formed was manufactured by injection-molding together the resin composition for land absorption piece formation from T die.
The rigidity at 20 ° C. of the non-land absorbing piece was 5.0 MPa, and the rigidity at 5 ° C. was 10.0 MPa. The rigidity of the main plate at 20 ° C. was 14.4 MPa, and the rigidity at 5 ° C. was 62.8 MPa. The rigidity is a value of rigidity measured according to JIS K7106. The rigidity of the non-land absorbing piece is cut from the base board with a cutter and melted to form a test piece for measuring rigidity of 2.5 cm in width and 2 mm in thickness. It is the value which measured the rigidity of the piece.

  The shape of the non-land absorbing piece was a shape that became thinner toward the lower side and curved toward the baseboard surface side. Further, the upper end of the back surface of the main body plate protruded 1 mm toward the wall surface. Furthermore, grooves having a depth of 1 mm were formed at intervals of 4 mm on the back surface of the main body plate in parallel with the longitudinal direction of the main body plate.

  When the baseboard of Example 1 manufactured in this manner was applied to the lower corner of the wall, a shadow was created in the lower corner of the wall, and excellent design was exhibited. Moreover, the non-land absorbability with respect to the floor surface was favorable. Furthermore, since the main body plate and the non-land absorbing piece are integrally formed, the strength of the non-land absorbing piece was good.

[Example 2]
A baseboard was produced in the same manner as in Example 1 except that a 0.13 mm thick vinyl chloride resin film having a wood grain pattern printed thereon was applied as a design layer to the main body plate surface.

  When the baseboard of Example 2 manufactured in this manner was applied to the lower corner of the wall surface, a shadow was created in the lower corner of the wall surface, and a design layer having a wood grain pattern printed on the surface of the main body plate was formed. Excellent design properties were exhibited. Moreover, the non-land absorbability with respect to the floor surface was favorable. Furthermore, since the main body plate and the non-land absorbing piece are integrally formed, the strength of the non-land absorbing piece was good.

[Comparative Example 1]
A baseboard was produced in the same manner as in Example 1 except that the amount of plasticizer (DOP) in the composition for forming a non-land absorbing piece was 30 parts by mass. The rigidity of the non-land absorbing piece at 20 ° C. was 25.3 MPa, and the rigidity at 5 ° C. was 78.1 MPa.

  When the baseboard of Comparative Example 1 manufactured in this way was constructed at the lower corner of the wall surface, the non-land absorbability with respect to the floor surface was not sufficient, and a gap was partially created between the non-land absorbing piece and the floor surface. It was.

[Comparative Example 2]
The same as in Example 1 except that the main body plate and the non-land absorbing piece are molded separately and the non-land absorbing piece is fitted and bonded to the fitting groove provided on the lower surface of the main body plate using an adhesive. A baseboard was made.

  In the baseboard of Comparative Example 2 manufactured as described above, the main body plate and the non-land absorbing piece are not integrally formed, and thus the strength of the fitting and bonding portion is not sufficient.

  The baseboard of the present invention is used by being constructed at the lower corner of the wall surface in a room such as a general house, an apartment, or an office building.

  DESCRIPTION OF SYMBOLS 1 ... Baseboard, 2 ... Main body board, 2a ... Main body board surface, 2b ... Main body board back surface (adhesion surface with a wall surface), 2c ... Groove, 2d ... Upper end part of the back surface 2b of the main body board 2, 2h ... Main body board 2 , 2t: thickness of the main body plate, 2e: lower end corner portion on the main body plate surface 2a side, 2f: root portion on the non-land absorbing piece 3 surface side, 2g: lower end corner portion 2e on the main body plate surface 2a side, non-land absorption Distance from the piece 3 surface side root portion 2f, 2i ... lower end corner portion of the main body plate 2 rear surface 2b, 2j ... non-land absorption piece 3, root portion on the rear surface side 2k ... lower end corner portion 2i on the main body plate rear surface 2b side, non-land absorption The distance from the piece 3 back side root portion 2j, 3 ... the non-land absorbing piece, 3h ... the height of the non-land absorbing piece, 4 ... the design layer, 4h ... the height of the design layer 4, 4t ... the thickness of the design layer 4, 5 ... Adhesive, 6 ... Light, 7 ... Shading, X ... Floor surface, Y ... Bottom corner of wall surface

Claims (4)

The body plate and the non-land absorbing piece are integrally molded with a flexible resin ,
At the lower end on the surface side of the main body plate, a corner is provided,
The body plate has a stiffness of 8 to 30 MPa at 20 ° C. measured according to JIS K7106,
The non-land absorbing piece is located at the center of the lower surface of the main body plate as viewed in the longitudinal section, and becomes thinner and curved toward the baseboard surface toward the lower side, and measured at 20 ° C. according to JIS K7106. Ri stiffness is 2 ~10MPa der,
A baseboard in which the rigidity of the main body plate is larger than the rigidity of the uneven absorption piece . The baseboard according to claim 1, wherein a cross-sectional shape of the corner portion is a right angle. The baseboard according to claim 1 or 2, wherein a distance between a corner portion of the main body plate and a surface-side root portion of the uneven absorption piece is 0.5 mm or more .   Furthermore, the baseboard in any one of Claims 1-3 in which the design layer was provided in the surface of the main body board.

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