JP3854262B2 - Synthetic resin lawn-like mat body and its production method - Google Patents

Description

  The present invention relates to a synthetic resin lawn-like mat body in which a large number of synthetic resin-made lawn-like protrusions formed on bent portions bent sideways are projected upward on a mat base, and a method for manufacturing the same.

  Japanese Patent Application Laid-Open No. 10-183518 (Patent Document 1) describes an invention of an artificial turf mat made of an integrally molded product in which a large number of small protrusions are erected on the surface of a support sheet. All the small protrusions on this artificial turf mat stand upright at a fixed height.

  As an artificial turf-like mat, there is also known an artificial grass-like mat that is formed in a bent portion by bending the upper portion of the small protrusion to the side instead of such an upright small protrusion. Conventionally, the height and length of the bent portion in the artificial grass-like mat formed in the bent portion by bending the upper portion of the small protrusion sideways have been constant. Although it is not known to form a pattern of characters, figures, symbols, etc. on the upper surface of such an artificial turf-like mat, if desired, a desired pattern can be formed by color-coding with a colorant. Conceivable.

However, it is difficult to say that the coloring by the colorant is suitable as an artificial turf-like mat, which causes a cost increase.
Japanese Patent Laid-Open No. 10-183518

  The present invention has been made in view of the above-described problems existing in the prior art, and the object of the present invention is to make a large number of turf leaves made of synthetic resin formed in a bent portion bent sideways. A synthetic resin lawn-like mat body in which protrusions are projected upward on the mat base, and a synthetic resin lawn-like mat body in which characters, figures, symbols, etc. appear on the upper part without color-coding with a colorant, And providing a manufacturing method thereof.

The synthetic resin lawn-like mat body of the present invention that achieves the above-mentioned object is as follows.
And Matt base, projecting from the upwardly upright at least a predetermined portion of the mat base, top, lawn formed by a large number of grass foliar protrusion made laterally formed in the bent portion that is bent synthetic resin A mat body,
The height of the upper side of the bent portion of the turf-like projection is constant, and the bending length of the bent portion in the turf-like projection is two or more, so that the amount of reflected light at the upper surface of the bent portion is 2. It is characterized by the fact that it becomes more than a seed, and the pattern is thereby expressed .

  A synthetic resin lawn-like mat body is usually used by being placed on the floor, road surface, ground, etc., and the upper part of the turf-like projections protruding upward on the mat base is bent to the side. Therefore, each turf-like protrusion reflects light from above (meaning obliquely above or directly above; the same shall apply hereinafter) upward on the upper surface of the bent portion.

  When the bending length of the bent portion of the turf-like projection is long, the amount of light reflected upward at the upper surface portion of the bent portion becomes large, and when the bending length of the bent portion of the turf-like projection is short, the bending portion The amount of light reflected upward at the upper surface portion is reduced. In this way, in a large number of turf-like projections in at least a predetermined portion of the mat base, the amount of light reflected upward on the upper surface of the bent portion is set to two or more for each turf-like projection, whereby the mat is Characters, figures, symbols, etc. appear on the user looking down from above.

Another synthetic resin lawn-like mat body of the present invention,
A lawn-like mat body comprising a mat base, and a plurality of synthetic resin-made lawn-like protrusions formed on the mat base and projecting upward at least at a predetermined portion, and having an upper portion bent at a side. Because
The area of the upper surface of the bent portion in the turf-like projection is 2 or more, so that the amount of reflected light on the upper surface is 2 or more, thereby forming a pattern.

  Since the upper part of the turf-like protrusions protruding upward on the mat base is formed into a bent part bent sideways, each turf-like protrusion reflects light from above on the upper surface part of the bent part. To do.

  When the area of the upper surface portion of the bent portion of the turf-like projection is large, the amount of light reflected upward at the upper surface portion of the bent portion is large, and when the area of the upper surface portion of the bent portion of the turf-like projection is small, The amount of light reflected upward at the upper surface of the bent portion is reduced. In this way, in a large number of turf-like projections in at least a predetermined portion of the mat base, the amount of light reflected upward on the upper surface of the bent portion is set to two or more for each turf-like projection, whereby the mat is Characters, figures, symbols, etc. appear on the user looking down from above.

Still another synthetic resin lawn-like mat body of the present invention,
A lawn-like mat body comprising a mat base, and a plurality of synthetic resin-made lawn-like protrusions formed on the mat base and projecting upward at least at a predetermined portion, and having an upper portion bent at a side. Because
The projected area with respect to the horizontal surface of the upper surface of the bent portion in the turf-like projection is 2 or more, so that the amount of reflected light on the upper surface is 2 or more, thereby forming a pattern. To do.

  Since the upper part of the turf-like protrusions protruding upward on the mat base is formed into a bent part bent sideways, each turf-like protrusion reflects light from above on the upper surface part of the bent part. To do.

  When the projected area with respect to the horizontal surface of the upper surface of the bent portion of the turf-like protrusion is large, the amount of light reflected upward at the upper surface of the bent portion becomes larger, and the upper surface of the bent portion of the turf-like protrusion with respect to the horizontal surface. When the projected area is small, the amount of reflected light on the upper surface of the bent portion is small. In this way, in a large number of turf-like projections in at least a predetermined portion of the mat base, the amount of light reflected upward on the upper surface of the bent portion is set to two or more for each turf-like projection, whereby the mat is Characters, figures, symbols, etc. appear on the user looking down from above.

  In the synthetic resin lawn-like mat body, the projecting density of a large number of turf-like protrusions in at least the predetermined portion of the mat base can be substantially constant.

  In this case, since the projecting density of a large number of turf-like protrusions at least at a predetermined portion of the mat base is substantially constant, the length of the bending part of each turf-like protrusion is short and long, and the area of the upper surface part of the bending part is Depending on the size of the projected area of the upper surface of the bent portion with respect to the horizontal plane, the reflection density of the light on the upper surface of the bent portion changes, and letters, figures, symbols, etc. for users looking down on the mat from above Appears.

  In the synthetic resin lawn-like mat body, the height of each turf-like protrusion can be substantially constant.

  In this case, the height of a large number of turf-like protrusions at least at a predetermined portion of the mat base, that is, the height position above the bent part is substantially constant. In the state where there is not, in the upper surface portion of the bent portion according to the length of the bent portion of each turf-like projection, the size of the area of the upper surface portion of the bent portion, or the projected area of the upper surface portion of the bent portion with respect to the horizontal plane The reflection density of the upward light changes, and a pattern of characters, figures, symbols, etc. appears to the user looking down on the mat from above.

  In the synthetic resin lawn-like mat body, a large number of turf-like protrusions in at least the predetermined portion of the mat base part may be substantially the same except for a bending mode.

  In this case, each turf-like protrusion in at least a predetermined portion of the mat base is substantially the same except for the bending mode (that is, if it is in a non-bent state). Depending on the mode of bending, each turf-like projection has the length of the bent portion, the size of the upper surface portion of the bent portion, or the size of the projected area of the upper surface portion of the bent portion with respect to the horizontal plane, Accordingly, the reflection density of light upward on the upper surface of the bent portion changes, and a pattern of characters, figures, symbols, etc. appears to the user looking down on the mat from above.

  In the synthetic resin lawn-like mat body, a large number of turf-like protrusions in at least the predetermined portion of the mat base may be substantially the same except for the bending mode and the vertical length of the lower part. .

  In this case, each turf-like protrusion in at least a predetermined portion of the mat base is not bent and the vertical length of the lower part (excluding the vertical length of the lower part if it is not bent) It is substantially the same. Accordingly, since each turf-like projection is substantially the same in the portion above the lower part, each turf-like projection has a bending length of the bending part according to the bending mode of the bending part in each turf-like projection. There are large and small, the size of the area of the upper surface of the bent part, or the size of the projected area of the upper surface of the bent part with respect to the horizontal plane, and the reflection density of light on the upper surface of the bent part changes accordingly, Characters, figures, symbols, etc. appear to the user looking down at the mat from above.

The method for producing a synthetic resin lawn-like mat body of the present invention is a method for producing any one of the above synthetic resin lawn-like mat bodies,
The turf-like protrusions in a lawn-like mat body in which a plurality of synthetic resin turf-like protrusions of two or more heights are provided on the mat base in an upright manner are heated by heating so as to have a constant height. It is characterized by bending sideways .

  The lawn-like protrusions in the lawn-like mat body, in which a plurality of synthetic resin lawn-like protrusions made of synthetic resin having two or more heights are provided on the mat base portion so as to face upward, have a substantially constant height. The height of each turf-like projection is substantially constant by being bent sideways by heating, the length of the bent portion of each turf-like projection is short, the size of the area of the upper surface of the bent portion, Or, according to the size of the projected area of the upper surface portion of the bent portion with respect to the horizontal plane, the reflection density of light upward on the upper surface portion of the bent portion changes, and patterns such as letters, figures, symbols, etc. for users looking down on the mat from above Any of the above synthetic resin-made lawn-like mat bodies can be produced.

Another synthetic resin lawn-like mat body of the present invention is a method for producing any one of the above synthetic resin lawn-like mat bodies,
Heat the lawn-like protrusions in a lawn-like mat body, in which a number of lawn-like protrusions made of synthetic resin, which are substantially upright and fixed, are provided on the mat base so as to have two or more heights. It is characterized by bending sideways.

  Heat the lawn-like protrusions in a lawn-like mat body, in which a number of lawn-like protrusions made of synthetic resin, which are substantially upright and fixed, are provided on the mat base so as to have two or more heights. The height of each turf-like projection and the length of the bent portion, the length of the bent portion, the area of the upper surface of the bent portion, or the size of the projected area of the upper surface of the bent portion with respect to the horizontal plane Any of the above can be used, and the reflection density of light upward on the upper surface of the bent portion changes accordingly, and a pattern of characters, figures, symbols, etc. appears to the user looking down on the mat from above A synthetic resin lawn-like mat body can be produced.

  In this manufacturing method, for example, the turf-like projections are heated and pressed perpendicularly to the upright direction of the turf-like projections by the uneven heating surface that can be heated uniformly, and the turf-like projections are bent laterally. Can be implemented. Alternatively, the turf-like projections are heated and pressed perpendicularly to the upright direction of the turf-like projections by a flat heating surface that can be heated in a state where two or more kinds of temperatures are distributed, and the turf-like projections are moved to the side. It can be implemented by bending in the direction. Alternatively, the thickness of the turf-like projections is two or more, and the turf-like projections are heated and pressed perpendicularly to the upright direction of the turf-like projections by a flat heating surface that can be heated uniformly. This can be done by bending the turf-like projections laterally.

  According to the synthetic resin lawn-like mat body of the present invention, when the bent portion of the turf-like projection is long, the area of the upper surface portion of the bent portion is large, or the projected area of the upper surface portion of the bent portion with respect to the horizontal plane Is large, the amount of reflection of light at the upper surface of the bent portion is increased, the bent length of the bent portion of the turf-like projection is short, the area of the upper surface portion of the bent portion is small, or the upper surface portion of the bent portion When the projected area with respect to the horizontal plane is small, the amount of light reflected on the top surface of the bent portion is small, so the amount of light reflected upward on the top surface of the bent portion for each turf-like projection is two or more, Characters, figures, symbols, etc. appear to the user looking down at the mat from above. The synthetic resin lawn-like mat body of the present invention can be efficiently produced by the method for producing the synthetic resin lawn-like mat body of the present invention.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 to FIG. 4 are sectional views of a synthetic resin lawn-like mat body of the present invention and a method for manufacturing the same, respectively. The reference numerals in the drawings that are common to the drawings have the same significance.

  FIG. 1 (a) is a cross-sectional view of a raw grass-like mat body A made of a thermoplastic resin and a heating / pressing plate P as raw materials for the synthetic resin grass-like mat body B of the present invention.

  The original lawn-like mat body A includes a mat base portion 10 and a large number of monochromatic turf-like protrusions 12 and 14 projecting upright from the mat base portion 10. The protruding density of the turf-like protrusions 12 and 14 is substantially constant. The mat base portion 10 is supported on a placement surface such as a floor surface or the ground by the leg portion 10a. The upright turf-like projections are composed of two types: a turf-like projection 12 having a high height and a turf-like projection 14 having a low height. The turf-like protrusions 12 and the turf-like protrusions 14 are substantially the same except for the vertical length of the lower part. That is, the part above the lower part is substantially the same.

  The turf-like projection 12 and the turf-like projection 14 are uniformly heated and pressed by the flat horizontal lower surface of the heating and pressing plate P as shown in FIG. The upper part of the material is plastically deformed and bent laterally, and has a substantially constant height. Accordingly, in this example, the bending length of the bent portion 12a of the turf-like protrusion 12 having a high height is long and the bending angle is large, and the bending length of the bending portion 14a of the turf-like protrusion 14 having a low height is short. Is getting smaller. Further, the length of the upright portion 12b below the bent portion 12a in the turf-like projection body 12 is equal to the length of the upright portion 14b below the bent portion 14a in the turf-like projection body 14.

  The turf-like protrusions 12 and the turf-like protrusions 14 are substantially the same except for the bending mode and the vertical length of the lower part, but the bent part 12a of the turf-like protrusions 12 has a long bending length, so The amount of reflection of light upward at the portion increases, and the bent portion 14a of the turf-like projection 14 has a short bending length, so that the amount of reflection of light upward at the upper surface portion decreases. In this case, the bent portion 12a is larger than the bent portion 14a in terms of the area of the upper surface portion of the bent portion and the projected area of the upper surface portion of the bent portion with respect to the horizontal plane.

  As described above, since there are two kinds of reflections of light upward on the upper surface portion at the bent portion 12a and the bent portion 14a, the turf-like projections 12 and the turf-like projections 14 are appropriately arranged two-dimensionally. As a result, patterns of characters, figures, symbols, and the like corresponding to the arrangement of the amount of reflected light appear to the user looking down on the synthetic resin lawn-like mat body B from above.

  The bending direction of the bent portion 12a and the bent portion 14a of the turf-like protrusion 12 and the turf-like protrusion 14 shown in FIG. 1 (b) is constant, but the bent portions in various directions are mixed. It may be. The same applies to the examples of FIGS.

  Further, the bending direction of the bent portion 12a and the bent portion 14a shown in FIG. 1 (b) is such that the upper portions of the upright turf-like projections 12 and turf-like projections 14 shown in FIG. 1 (a) protrude obliquely upward. From the curved side to the vertical side. Therefore, in this case, the bending direction can be set by the arrangement on the side of the original lawn-like mat body A that is curved upward and obliquely above the turf-like projections 12 and 14. The same applies to the examples of FIGS.

  The synthetic resin lawn-like mat body B has, as lawn-like projections, non-bent lawn-like projections that stand upright in addition to the lawn-like projections whose upper portions are formed in the bent portions 12a and 14a. It may be what you are doing. The same applies to the examples of FIGS.

  FIG. 2A is a cross-sectional view of a raw grass-like mat body A made of a thermoplastic resin and a heating / pressing plate P as raw materials for the synthetic resin-made grass-like mat body B of the present invention.

  On the mat base 10 of the original lawn-like mat body A, a large number of monochromatic turf-like protrusions 12 and 16 are projected upward in an upright manner. The protruding density of the turf-like protrusions 12 and 16 is substantially constant. The height of the upright turf-like projections is constant, and is composed of two types: a turf-like projection 12 having a small thickness and a turf-like projection 16 having a large thickness.

  By uniformly heating and pressing the turf-like projections 12 and the turf-like projections 16 with the flat horizontal lower surface of the heating and pressing plate P, the turf-like projections 12 and the turf-like projections as shown in FIG. The upper part of the body 16 is plastically deformed and bent sideways. Thereby, in this example, the bending length of the bent portion 12a of the turf-like projection 12 having a small thickness is long and the bending angle is large, and the bending length of the bending portion 16a of the turf-like projection 16 having a large thickness is short. Is getting smaller. Further, the length of the upright portion 16 b below the bent portion 16 a in the turf-like protrusion 16 is longer than the length of the upright portion 12 b below the bent portion 12 a in the turf-like protrusion 12.

  Since the bent portion 12a of the turf-like protrusion 12 has a long bending length and a large projected area on the horizontal plane of the upper surface of the bent portion, the amount of reflected light on the upper surface becomes larger, and the bent of the turf-like protrusion 16 is bent. Since the portion 16a has a short bending length and a small projected area with respect to the horizontal surface of the upper surface portion of the bending portion, the amount of reflection of light upward at the upper surface portion becomes small.

  As described above, since the amount of reflection of light upward on the upper surface portion is two in the bent portion 12a and the bent portion 16a, the turf-like projections 12 and the turf-like projections 16 are appropriately arranged two-dimensionally. As a result, patterns of characters, figures, symbols, and the like corresponding to the arrangement of the amount of reflected light appear to the user looking down on the synthetic resin lawn-like mat body B from above.

  FIG. 3 (a) is a cross-sectional view of the raw grass-like mat body A made of a thermoplastic resin and the heating and pressing plate Q as raw materials for the synthetic resin grass-like mat body B of the present invention.

  On the mat base 10 of the original lawn-like mat body A, a large number of monochromatic turf-like projections 12 are provided in an upwardly protruding manner. The protruding density of the turf-like protrusions 12 is substantially constant. The height, thickness, and shape of the upright turf-like protrusions 12 are all substantially the same.

  The lower surface of the heating and pressing plate Q is formed in a concave portion Q1 that is partially recessed upward, but the concave portion Q1 and the other lower surface Q2 are both flat horizontal surfaces. The lower surface of the heating and pressing plate Q uniformly heats and presses the turf-like projections 12 as shown in FIG. 3B, whereby the upper part of the turf-like projections 12 is plastically deformed and bent sideways. Accordingly, in this example, the bending length of the bent portion 12a of the turf-like protrusion 12 heated and pressurized by the lower surface Q2 is long and the bending angle is increased, and the bent portion of the turf-like protrusion 12 heated and pressed by the recess Q1. The bending length of 12c is short and the bending angle is small. In addition, the length of the upright portion 12d below the bent portion 12c in the turf-like projection 12 is longer than the length of the upright portion 12b below the bent portion 12a in the turf-like projection 12.

  The turf-like projections 12 are substantially the same except for the bending mode, but the bent part 12a of the turf-like projections 12 heated and pressurized by the lower surface Q2 has a long bending length, so that the upper side of the upper side is upward. The amount of reflected light becomes large, and the bent portion 12c of the turf-like projection 12 heated and pressurized by the concave portion Q1 has a short bent length, so that the amount of reflected light on the upper surface portion becomes small. In this case, the bent portion 12a is larger than the bent portion 12c in terms of the area of the upper surface portion of the bent portion and the projected area of the upper surface portion of the bent portion with respect to the horizontal plane.

  Thus, since the amount of reflection of light upward on the upper surface portion is two in the bent portion 12a and the bent portion 12c, the bent portion 12a and the bent portion are in accordance with the two-dimensional shape of the concave portion Q1 on the lower surface of the heating and pressing plate Q. By arranging 12c two-dimensionally, a pattern of characters, figures, symbols, etc. according to the arrangement of the amount of reflected light appears to the user looking down on the synthetic resin lawn-like mat body B from above. .

  FIG. 4A is a cross-sectional view of a raw grass-like mat body A made of a thermoplastic resin and a heating / pressing plate R as raw materials for the synthetic resin-made grass-like mat body B of the present invention.

  On the mat base 10 of the original lawn-like mat body A, a large number of monochromatic turf-like projections 12 are provided in an upwardly protruding manner. The protruding density of the turf-like protrusions 12 is substantially constant. The height, thickness, and shape of the upright turf-like protrusions 12 are all substantially the same.

  Although the lower surface of the heating and pressing plate R is a flat horizontal surface, a part of the lower surface is formed on the low temperature heating surface R1 having a lower heating temperature than the normal heating surface R2 which is the other lower surface. By heating and pressurizing the turf-like projections 12 with the lower surface of the heating and pressing plate R, as shown in FIG. 4B, the upper part of the turf-like projections 12 is plastically deformed and bent sideways. Accordingly, in this example, the bent length of the bent portion 12a of the turf-like protrusion 12 heated and pressurized by the normal heating surface R2 is long and the bending angle is increased, and the turf-like protrusion heated and pressed by the low-temperature heating surface R1. The bending length of the 12 bent portions 12c is short and the bending angle is small. In addition, the length of the upright portion 12d below the bent portion 12c in the turf-like projection 12 is longer than the length of the upright portion 12b below the bent portion 12a in the turf-like projection 12.

  The turf-like protrusions 12 are substantially the same except for the bending mode, but the bent part 12a of the turf-like protrusions 12 heated and pressurized by the normal heating surface R2 has a long bending length, so that The amount of reflected light increases, and the bent portion 12c of the turf-like projection 12 heated and pressurized by the low-temperature heating surface R1 has a short bent length, so that the amount of reflected light on the upper surface portion decreases. . In this case, the bent portion 12a is larger than the bent portion 12c in terms of the area of the upper surface portion of the bent portion and the projected area of the upper surface portion of the bent portion with respect to the horizontal plane.

  Thus, since the amount of reflection of light upward at the upper surface portion at the bent portion 12a and the bent portion 12c becomes two types, the bent portion 12a and the bent portion 12a according to the two-dimensional shape of the low temperature heating surface R1 at the lower surface of the heating and pressing plate R By arranging the bent portion 12c two-dimensionally, a pattern of characters, figures, symbols, etc. according to the arrangement of the amount of reflected light with respect to the user looking down on the synthetic resin lawn-like mat body B from above. Appears.

  It should be noted that the dimensions, number, material, shape, relative arrangement, etc. of the component parts in the description of the above embodiments are limited to the scope of the present invention unless otherwise specified. It is not intended to be limiting, but merely an illustrative example.

It is sectional drawing about embodiment of a synthetic resin lawn-like mat body and its manufacturing method. It is sectional drawing about embodiment of another synthetic resin lawn-like mat body and its manufacturing method. It is sectional drawing about another Embodiment of synthetic resin lawn-like mat bodies and its manufacturing method. It is sectional drawing about another Embodiment of synthetic resin lawn-like mat bodies and its manufacturing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mat base part 10a Leg part 12a Bending part 12 Lawn-like protrusion 12b Upright part 12c Bending part 12d Upright part 14 Lawn-like protrusion 14a Bending part 14b Upright part 16 Lawn-like protrusion 16a Bending part 16b Upright part A Original lawn-like mat Body B Lawn-like mat body made of synthetic resin P Heating pressure plate Q Heating pressure plate Q1 Recess Q2 Lower surface R Heating pressure plate R1 Low temperature heating surface R2 Normal heating surface

Claims (4)

And Matt base, projecting from the upwardly upright at least a predetermined portion of the mat base, top, lawn formed by a large number of grass foliar protrusion made laterally formed in the bent portion that is bent synthetic resin A mat body,
The height of the upper side of the bent portion of the turf-like projection is constant, and the bending length of the bent portion in the turf-like projection is two or more, so that the amount of reflected light at the upper surface of the bent portion is 2. A synthetic resin lawn-like mat body characterized in that it is a seed or more and the pattern is thereby expressed. At least synthetic resin grass-like mat of a large number of claim 1, wherein projecting the density of grass foliar protrusion is constant at the predetermined portion of the mat base. The lawn-like mat body made of synthetic resin according to claim 1 or 2 , wherein a plurality of turf-like protrusions in at least the predetermined portion of the mat base portion are the same except for a bent portion . A method for producing the synthetic resin lawn-like mat body according to any one of claims 1 to 3 ,
The turf-like protrusions in a lawn-like mat body in which a plurality of synthetic resin turf-like protrusions of two or more heights are provided on the mat base in an upright manner are heated by heating so as to have a constant height. A method for producing a synthetic resin lawn-like mat body, characterized by bending sideways.

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