1. A sheet die-cutting blade comprising a strip-plate-shaped blade plate having a predetermined length and made of a steel plate, the blade plate being provided with a pair of chamfers formed on the respective side surfaces of the blade plate so as to extend from one side edge of the blade plate at substantially the same inclination angle, the chamfers defining a cutting edge along the one side edge of the blade plate,
characterized in that the cutting edge has a composite wave pattern comprising a large wave pattern and a small wave pattern, the large wave pattern comprising a plurality of longitudinally continuous large waves, the small wave pattern comprising a plurality of longitudinally continuous small waves, wherein each of the large waves contains a plurality of the small waves, and wherein the small wave pattern is entirely located within the thickness of the blade plate.
2. The sheet die-cutting blade of claim 1, wherein the large wave pattern is located within the thickness of the blade plate, and wherein only the chamfers have a wave pattern having crests and troughs corresponding to the large wave pattern.
3. The sheet die-cutting blade of claim 1, wherein the entire opposite side surfaces of the blade plate have a wave pattern having crests and troughs corresponding to the large wave pattern.
4. The sheet die-cutting blade of claim 1, wherein the large wave pattern and small wave pattern have respective sine-curve wave shapes having fixed pitches, fixed wave widths, and fixed radii of curvature of their respective waves, and the pitch P2, the wave width W2, and the radius of curvature R of the waves in the large wave pattern fall within ranges of: P2=2.0 mm to 10.0 mm, W2=0.1 mm to 1.2 mm, and R=2.0 mm to 6.0 mm.
5. The sheet die-cutting blade of claim 4, wherein when the thickness of the blade plate is about 0.7 mm, the pitch P2, the wave width W2, and the radius of curvature R of the waves in the large wavy edge fall within ranges of: P2=2.0 mm to 4.0 mm, W2=0.1 mm to 0.4 mm, and R=3.0 mm to 5.0 mm, and the pitch P1, the wave width W1, and the radius of curvature r of the waves in the small wave pattern fall within ranges of: P1=0.4 mm to 0.8 mm, W1=0.04 mm to 0.1 mm, and r=0.3 mm to 0.5 mm.
6. The sheet die-cutting blade of claim 4, wherein when the thickness of the blade plate is about 0.9 mm, the pitch P2, the wave width W2 and the radius of curvature R of the waves in the large wave pattern fall within ranges of: P2=2.0 mm to 5.0 mm, W2=0.1 mm to 0.6 mm, and R=3.0 mm to 5.0 mm, and the pitch P1, the wave width W1, and the radius of curvature r of the waves in the small wave pattern fall within ranges of: P1=0.6 mm to 1.2 mm, W1=0.05 mm to 0.2 mm, and r=0.3 mm to 0.6 mm.
7. The sheet die-cutting blade of claim 4, wherein when the thickness of the blade plate is about 1.07 mm, the pitch P2, the wave width W2, and the radius of curvature R of the waves in the large wave pattern fall within ranges of: P2=3.0 mm to 6.0 mm, W2=0.2 mm to 0.8 mm, and R=3.0 mm to 5.0 mm, and the pitch P1, the wave width W1, and the radius of curvature r of the waves in the small wave pattern fall within ranges of: P1=0.8 mm to 1.4 mm, W1=0.08 mm to 0.3 mm, and r=0.3 mm to 1.0 mm.
8. The sheet die-cutting blade of claim 1, wherein the large wave pattern and the small wave pattern have respective curved shapes having irregular pitches and irregular wave widths in the longitudinal direction of the blade plate.
9. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 1, to and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
10. The die-cut blank of claim 9, wherein the small wavy curve and the large wavy curve of the composite wavy line include respective sine-wave curves and are adapted to satisfy: P3=0.2 mm to 2.0 mm, H3=0.02 mm to 0.5 mm, r3=0.2 mm to 1.5 mm, and P4=2 mm to 10.0 mm, H4=0.1 mm to 1.2 mm, and R4=2.0 mm to 6.0 mm,
assuming that the pitch of the crests is P3, the height of the crests is H3, and the radius of curvature of the waves is r3 in the small wavy curve, and the pitch of the crests is P4, the height of the crests is H4, and the radius of curvature of the waves is R4 in the large wavy curve.
11. A sheet die-cutting blade comprising a strip-plate-shaped blade plate having a predetermined length and made of a steel plate, the blade plate being provided with a pair of chamfers formed on the respective side surfaces of the blade plate so as to extend from one side edge of the blade plate at substantially the same inclination angle, the chamfers defining a cutting edge along the one side edge of the blade plate,
characterized in that the cutting edge has a curved shape identical to the composite wavy line according to claim 10.
12. The sheet die-cutting blade of claim 2, wherein the large wave pattern and small wave pattern have respective sine-curve wave shapes having fixed pitches, fixed wave widths, and fixed radii of curvature of their respective waves, and the pitch P2, the wave width W2, and the radius of curvature R of the waves in the large wave pattern fall within ranges of: P2=2.0 mm to 10.0 mm, W2=0.1 mm to 1.2 mm, and R=2.0 mm to 6.0 mm.
13. The sheet die-cutting blade of claim 3, wherein the large wave pattern and small wave pattern have respective sine-curve wave shapes having fixed pitches, fixed wave widths, and fixed radii of curvature of their respective waves, and the pitch P2, the wave width W2, and the radius of curvature R of the waves in the large wave pattern fall within ranges of: P2=2.0 mm to 10.0 mm, W2=0.1 mm to 1.2 mm, and R=2.0 mm to 6.0 mm.
14. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 2, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
15. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 3, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
16. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 4, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
17. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 5, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
18. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 6, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
19. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 7, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
20. A case-forming die-cut blank comprising:
two pairs of opposing side panels to form a rectangular tubular-shaped body;
inner flaps provided continuously on respective end edges of one pair of side panels; and
outer flaps provided continuously on respective end edges of the remaining pair of side panels, such that the outer flaps are to be adhered to the inner flaps to close an opening of the body,
characterized in that the blank has outer peripheral edges, of which at least outer peripheral edges of the outer flaps are formed from a cut line formed by die cutting with the sheet die-cutting blade according to claim 8, and the cut line is formed from a composite wavy line formed from a small wavy curve having a small undulation forming alternate and successive crests and troughs, and a large wavy curve having a large undulation forming alternate and successive crests and troughs.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A geotechnical application, comprising:
a site having a process area, wherein said process area is temperature sensitive;
a geosynthetic sheet covering said site process area, said geosynthetic sheet including a ultraviolet (UV) light stabilizer and thermal stabilizer and being substantially impervious to water, and
at least translucent to light.
2. The geotechnical application of claim 1, wherein said sheet is linear low density polyethylene (LLDPE).
3. The geotechnical application of claim 1, wherein said sheet one or more of linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene propylene diene monomer (EPDM), thermoplastic olefins (TPO), ethylene vinyl acetate (EVA) and coextrusions thereof.
4. The geotechnical application of claim 1, wherein said sheet reduces heat loss to air at the site.
5. The geotechnical application of claim 1, wherein said sheet is sufficiently translucent to allow visual inspection of underlying materials in said process site through said sheet.
6. The geotechnical application of claim 5, wherein said sheet is substantially transparent.
7. The geotechnical application of claim 1, wherein said UV light stabilizer includes a hindered amine light stabilizer (HALS) formulated to resist extractiondestruction by chemicals used in the geotechnical site process area.
8. A geosynthetic sheet for covering a geotechnical site having a temperature sensitive process area, said sheet including a ultraviolet (UV) light stabilizer and being
substantially impervious to water, and
at least translucent to light.
9. The geosynthetic sheet of claim 8, wherein said sheet is linear low density polyethylene (LLDPE).
10. The geosynthetic sheet of claim 8, wherein said sheet one or more of linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene propylene diene monomer (EPDM), thermoplastic olefins (TPC), ethylene vinyl acetate (EVA) and coextrusions thereof.
11. The geosynthetic sheet of claim 8, wherein said sheet reduces heat loss to air at the site.
12. The geosynthetic sheet of claim 8, wherein said sheet is sufficiently translucent to allow visual inspection through said sheet of underlying materials.
13. The geosynthetic sheet of claim 12, wherein said sheet is substantially transparent.
14. The geosynthetic sheet of claim 8, wherein said UV light stabilizer includes a hindered amine light stabilizer (HALS) formulated to resist extractiondestruction by chemicals used in a covered geotechnical site process area.
15. The geosynthetic sheet of claim 8, wherein said sheet further includes a thermal stabilizer.