Claims

[1] A slab-shaped block ramp for forming a slope in a step-forming portion of a

higher level surface (3), comprising:

a fan- shaped plane plate (110) having a plane upper surface, wherein the fan- shaped plane plate (110) includes:

a boundary portion (114) conforming to the shape of the step-forming portion of the higher level surface (3),

an inner angular portion (112) formed about a central point (111) on the inner edge of the boundary portion (114), the angle of the inner angular portion (112) being the same as the inside angle of the higher level surface (3), and

1 to 15 radial rows of plane blocks (115) outwardly expanding about

the central point (111) into a fan shape, plane blocks (115) laterally connected to each other, thereby defining an outer circumferential edge (113) of the fan- shaped plane plate (110), each of the plane blocks (115) having an inside angle about the central point (111), the inside angle of the plane block (115) being

produced by dividing the angle of the inner angular portion (112) at a predetermined ratio;

a slope plate (130) having an upper slope (135) and formed at the same angle as the inner angular portion (112) of the plane plate (110), wherein the slope plate (130) includes:

a boundary portion (131) continuing from the boundary portion (114) of the plane plate (110) and conforming to the shape of the step-forming portion of the higher level surface (3),

1 to 30 rows of slab type slope blocks (134) defining, inside the

boundary portion (131), an inner circumferential edge (132) continuing from the outer circumferential edge (113) of the plane plate (110), outwardly expanding

from the inner circumferential edge (132) into a fan shape, and laterally

connected to each other, thereby forming an outer circumferential edge (133) in contact with an upper surface of the higher level surface (3); and

detachable upholding blocks (139) having different heights and

supporting undersides of the slab type slope blocks (134), so that the upper slope (135) of the slope plate (130) is defined from the inner circumferential edge

(132) to the outer circumferential edge (133).

[2] The slab-shaped block ramp according to claim 1, wherein the plane plate (110) is formed by laterally connecting the plane blocks (115) to each other into a fan shape having the plane upper surface, each of the plane blocks (115) having an

angle produced by circumferentially dividing the angle of the inner angular portion (112) inside the boundary portion (114) of the plane plate (110), the

angle of the inner angular portion (112) ranging from 90 to 270 degrees about the central point (111), the plane block (115) expanding in dimension while

extending away from the central point (111), thereby forming a fan shape.

[3] The slab-shaped block ramp according to claim 1, wherein the inside angle of the fan-shaped plane blocks (115), assembled into the plane plate (110), and the fan- shaped slab type slope blocks (134), assembled into the slope plate (130), ranges from 9 to 60 degrees about the central point (111).

[4] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 2 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein a pair of the isosceles triangular slab type slope blocks

(134b) are combined, in a form of an inverted triangle, to each isosceles

trapezoidal slab type block (134a) of an Nth row of the slope plate (130), by one isosceles triangular slab type slope block (134b) to one oblique side of the

isosceles trapezoidal slab type block (134a), so that a resultant combination

including the isosceles trapezoidal slab type block (134a) of the Nth row and the isosceles triangular slab type slope blocks (134b) has the same shape and

dimension as the isosceles trapezoidal slab type slope block (134) of an (N+l)th row of the slope plate (130), thereby making the slab type slope block (134) in

the (N+l)th row, whereby the slope plate (130) is provided with a desirable

pattern.

[5] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 3 to 30 rows, an outer edge of a respective one of the slab type slope blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein a pair of the isosceles trapezoidal slab type blocks (134a) of an Nth row of the slope plate (130) are combined with the isosceles triangular

slab type slope block (134b), by one isosceles trapezoidal slab type block (134a) to one side of the isosceles triangular slab type slope block (134b), so that a

resultant combination of the isosceles trapezoidal slab type blocks (134a) of the Nth row and the isosceles triangular slab type slope block (134b) have the same shape and dimension as the isosceles trapezoidal slab type slope block (134) in a (2N+l)th row of the slope plate (130), thereby making the slab type slope block (134) in the (2N+l)th row, whereby the slope plate (130) is provided with a

desirable pattern.

[6] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 4 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein two isosceles trapezoidal slab type blocks (134a) of an Nth row of the slope plate (130) are arranged side by side, and three of the isosceles triangular slab type slope blocks (134b) are combined, in a form of an inverted

triangle, between the isosceles trapezoidal slab type blocks (134a), so that a

resultant combination including the three isosceles triangular slab type slope

blocks (134b) and the two isosceles trapezoidal slab type blocks (134a) has the

same shape and dimension as the isosceles trapezoidal slab type slope block

(134) of a (2N+2)th row of the slope plate (130), thereby making the slab type

slope block (134) in the (2N+2)th row, whereby the slope plate (130) is provided with a desirable pattern.

[7] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 5 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein three isosceles trapezoidal slab type blocks (134a) of an

Nth row of the slope plate (130) are arranged side by side, and two of the

isosceles triangular slab type slope blocks (134b) are combined between the

isosceles trapezoidal slab type blocks (134a), so that a resultant combination

including the two isosceles triangular slab type slope blocks (134b) and the three isosceles trapezoidal slab type blocks (134a) has the same shape and dimension as the isosceles trapezoidal slab type slope block (134) of a (3N+2)th row of the slope plate (130), thereby making the slab type slope block (134) in the (3N+2)th row, whereby the slope plate (130) is provided with a desirable pattern.

[8] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 5 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein three isosceles trapezoidal slab type blocks (134a) of an

Nth row of the slope plate (130) are engaged with each other in an alternating

fashion, and two of the isosceles triangular slab type slope blocks (134b) are

combined, in a form of an inverted triangle, to both sides of a resultant structure of the three isosceles trapezoidal slab type blocks (134a), so that a resultant

combination including the two isosceles triangular slab type slope blocks (134b) and the three isosceles trapezoidal slab type blocks (134a) has the same shape

and dimension as the isosceles trapezoidal slab type slope block (134) of a

(3N+2)th row of the slope plate (130), thereby making the slab type slope block (134) in the (3N+2)th row, whereby the slope plate (130) is provided with a

desirable pattern.

[9] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 3 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein two pairs of the isosceles triangular slab type slope blocks (134b), each pair including two isosceles triangular slab type slope blocks (134b) engaging with each other in an alternating fashion, are combined with an

isosceles trapezoidal slab type block (134a) of an Nth row of the slope plate, by one pair to one oblique side of the isosceles trapezoidal slab type block (134a), so that a resultant combination of the isosceles trapezoidal slab type block (134a) and the four isosceles triangular slab type slope blocks (134b) has the same shape and dimension as the isosceles trapezoidal slab type slope block (134) of an

(N+2)th row of the slope plate, thereby making the slab type slope block (134) in the (N+2)th row, whereby the slope plate (130) is provided with a desirable

pattern.

[10] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 2 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein one parallelogrammic slab type slope block (134c) is combined, at a side thereof, with an oblique side of each isosceles trapezoidal slab type slope block

(134a) of an Nth row of the slope plate (130), the combining sides of the parallelogrammic slab type slope block (134c) and the isosceles trapezoidal slab type slope block (134a) of the Nth row having the same length, so that a resultant

combination of the parallelogrammic slab type slope block (134c) and the isosceles trapezoidal slab type slope block (134a) has the same shape and

dimension as the isosceles trapezoidal slab type slope block(134) in any one of

the second to the 30th rows, thereby providing the slab type slope block in any

one of the second to the 30th rows, whereby the slope plate (130) is provided

with a desirable pattern.

[11] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 2 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein a pair of parallelogrammic slab type slope blocks (134c) are symmetrically combined, at a side thereof, with an either oblique side of an isosceles trapezoidal slab type slope block (134a) of an Nth row of the slope plate (130),

the combining sides of the parallelogrammic slab type slope block (134c) and the isosceles trapezoidal slab type slope block (134a) of the Nth row having the same length, so that a resultant combination of the parallelogrammic slab type slope

blocks (134c) and the isosceles trapezoidal slab type slope block (134a) has the

same shape and dimension as the isosceles trapezoidal slab type slope block

(134) of any one of second to 20th rows, thereby providing the slab type slope

block in any one of the second to the 20th rows, whereby the slope plate (130) is provided with a desirable pattern.

[12] The slab-shaped block ramp according to claim 1, wherein an outer edge of a

respective one of the slab type slope blocks (134) in the each row of the slope

plate (130) corresponds, in a plan view, to a side of a regular polygon having n

number of angles, drawn about the central point (111), the n number ranging

from 6 to 40, so that the respective slab type slope block (134) has an isosceles

trapezoidal shape in a plan view, and the length of an oblique side of the

isosceles trapezoidal slab type slope block (134) is set to be equal to a length

from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and

dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having

the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein the isosceles triangular slab type slope block (134b) is

placed in a form of an inverted triangle, and a pair of parallelogrammic slab type slope blocks (134c) are symmetrically combined, at a side thereof, with an either oblique side of the isosceles triangular slab type slope block (134b), the

combining sides of the isosceles triangular slab type slope block (134b) and the

parallelogrammic slab type slope blocks (134c) have the same length, so that a

resultant combination of the triangular slab type slope block (134b) and the

isosceles parallelogrammic slab type slope blocks (134c) has the same shape and dimension as the isosceles trapezoidal slab type slope block (134) of an Nth row of the slope plate (130), thereby providing the slab type slope block (134) in the Nth row of the slope plate (130), whereby the slope plate (130) is provided with a desirable pattern.

[13] The slab-shaped block ramp according to claim 1, wherein an outer edge of a

respective one of the slab type slope blocks (134) in the each row of the slope

plate (130) corresponds, in a plan view, to a side of a regular polygon having n

number of angles, drawn about the central point (111), the n number ranging

from 6 to 40, so that the respective slab type slope block (134) has an isosceles

trapezoidal shape in a plan view, and the length of an oblique side of the

isosceles trapezoidal slab type slope block (134) is set to be equal to a length

from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and

dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having

the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein an isosceles triangular slab type slope block (134b) is

placed in the form of an inverted triangle and a parallelogrammic slab type slope block (134c), having the same length as the oblique side of the isosceles

trapezoidal slab type slope block (134), is combined, at a side thereof, with a corresponding one of the oblique sides of the isosceles triangular slab type slope

block (134b), so that a resultant combination of the parallelogrammic slab type

slope block (134c) and the isosceles triangular slab type slope block (134b) has

the same shape and dimension as the isosceles trapezoidal slab type slope block

(134) of an Nth row of the slope plate (130), thereby providing the slab type

slope block (134) in the Nth row of the slope plate (130), whereby the slope plate (130) is provided with a desirable pattern.

[14] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 5 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), and so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein an isosceles trapezoidal slab type block (134a) of an Nth row is placed

in a (2N'+N+l)th row of the slope plate (130) and a pair of isosceles trapezoidal slab type blocks (134a) of an N'th row, where N' < N, are symmetrically

combined, at an oblique side thereof, with an either oblique side of the isosceles trapezoidal slab type block (134a) of the Nth row, so that a resultant combination of the isosceles trapezoidal slab type blocks (134a) of the Nth and N'th rows has the same shape and dimension as the isosceles trapezoidal slab type slope block

(134) of the (2N'+N+l)th row of the slope plate (130), thereby providing the slab type slope block (134) in the (2N'+N+l)th row of the slope plate (130), whereby the slope plate (130) is provided with a desirable pattern.

[15] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 4 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein three isosceles trapezoidal slab type blocks (134a) of an Nth row of the slope plate (130) are engaged with each other, in an alternating fashion, in a

(3N+l)th row of the slope plate (130), so that a resultant combination of the three isosceles trapezoidal slab type blocks (134a) has the same shape and dimension

as the isosceles trapezoidal slab type slope block (134) of the (3N+l)th row of

the slope plate, thereby providing the slab type slope block (134) in the (3N+l)th row of the slope plate(130), whereby the slope plate (130) is provided with a

desirable pattern.

[16] The slab-shaped block ramp according to claim 1, wherein an outer edge of a

respective one of the slab type slope blocks (134) in the each row of the slope

plate (130) corresponds, in a plan view, to a side of a regular polygon having n

number of angles, drawn about the central point (111), the n number ranging

from 6 to 40, so that the respective slab type slope block (134) has an isosceles

trapezoidal shape in a plan view, and the length of an oblique side of the

isosceles trapezoidal slab type slope block (134) is set to be equal to a length

from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and

dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having

the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein 2N+1 number of the isosceles triangular slab type blocks

(134b), conforming to the shape and dimension of an isosceles trapezoidal slab

type slope block of an Nth row of the slope plate, are placed in the Nth row of

the slope plate (130), so that a resultant combination of the 2N+1 number of the isosceles triangular slab type blocks (134b) has the same shape and dimension as the isosceles trapezoidal slab type slope block (134) of the Nth row of the slope plate (130), thereby providing the slab type slope block (134) in the Nth row of

the slope plate (130), whereby the slope plate (130) is provided with a desirable pattern.

[17] The slab-shaped block ramp according to claim 1, wherein, when the slope plate

(130) has 2 to 30 rows, an outer edge of a respective one of the slab type slope

blocks (134) in the each row of the slope plate (130) corresponds, in a plan view, to a side of a regular polygon having n number of angles, drawn about the central point (111), the n number ranging from 6 to 40, so that the respective slab type

slope block (134) has an isosceles trapezoidal shape in a plan view, and the

length of an oblique side of the isosceles trapezoidal slab type slope block (134) is set to be equal to a length from the central point (111) of the plane plate (110) to a vertex of the inner circumferential edge (132) of the slope plate (130) in

contact with the outer circumferential edge (113) of the plane plate (110), so that the isosceles trapezoidal slab type slope blocks (134) in the respective rows have the same shape and dimension, and

wherein the slope plate (130) further includes isosceles triangular slab type slope blocks (134b), each of which has a vertex angle produced by dividing 360

degrees by the n number and two oblique sides defining the vertex angle, each of the oblique sides of the isosceles triangular slab type slope block (134b) having the same length as the oblique side of the isosceles trapezoidal slab type slope

block (134), wherein a pair of the isosceles triangular slab type slope blocks

(134b) are arranged in contact with each other in an axially-symmetrical relation, so that a resultant combination of the isosceles triangular slab type slope blocks (134b) produces an outer shape of a quadrangular slab type slope block (134d), thereby providing the slab type slope plate (134) of a corresponding row of the

slope plate (130), whereby the slope plate (130) is provided with a desirable

pattern.

[18] The slab-shaped block ramp according to claim 1, wherein the plane plate (110) and the slope plate (130) are laterally divided about the central point (111),

the ramp further comprising:

1 to 15 rows of extensional plane blocks (119) mediating between the divided

plane plate (110), and continuously extending according to the extensional width of the plane plate (110);

1 to 30 rows of slab type extensional slope blocks (140) mediating between the

divided slope plate (130), and laterally extending according to the extensional

width of the slope plate (130); and

detachable upholding blocks (145) having different heights and supporting, from below, the slab type extensional slope blocks (140), so that the slab type extensional slope blocks (140) have the same slope as that of the upper slope (135) of the slab type slope blocks (134), whereby the width of the ramp is increased.

[19] The slab-shaped block ramp according to claim 1, further comprising:

1 to 15 rows of extensional plane blocks (119) connected to the plane block

(115) in the boundary portion (114) of the plane plate (110), and extending

according to the extensional length of the plane plate (110);

1 to 30 rows of slab type extensional slope blocks (140) connected to the fan- shaped slab type slope blocks (134) in the boundary portion (131) of the slope

plate (130), longitudinally extending according to the extensional length of the slope plate (130), and continuing from the boundary portions (114, 131) of the plane and slope plates (110, 130), thereby conforming to the shape of the higher level surface (3); and

detachable upholding blocks (145) having different heights and supporting, from below, the slab type extensional slope blocks (140), so that the slab type extensional slope blocks (140) have the same slope as that of the upper slope (135) of the slab type slope blocks (134),

whereby the length of the ramp (100) is increased.

[20] The slab-shaped block ramp according to claim 1, further comprising:

a slab type side ramp (150) in a section of the higher level surface (3) outside the slope plate (130), which is connected to the outer circumferential edge (113) of the plane plate (110), wherein the slab type side ramp (150) includes:

1 to 10 rows of slab type side slope blocks (151) along the length of the higher level surface (3), the rows laterally connected to each other; and

detachable upholding blocks (156) supporting, from below, the slab type side

slope blocks (151), so that the slab type side slope blocks (151) form an upper

slope (152),

whereby the difference in level of the higher level surface (3) in the section of

the higher level surface (3) is reduced and the dimension of the slope plate (130) is reduced.

[21] The slab-shaped block ramp according to claim 1, further comprising:

a periphery-finishing block (146) connected to the outer circumferential edge

(133) of the slope plate (130), thereby forming the outer shape of the slope plate (130) as part of the outer shape of a polygon having 4 to 8 angles.

[22] The slab-shaped block ramp according to claim 1, further comprising:

a projected plane plate (160) having projected plane blocks (161), connected to and protruding outwards from the boundary portions (114, 131), and expanding from the central point (111), the projected plane block (161) having a plane

upper surface, and the upper surface of the projected plane plate (160) being

flush with that of the plane plate (110).

[23] The slab-shaped block ramp according to claim 1, further comprising:

a projected slope plate (170) having slab type projected slope blocks (171) and detachable upholding blocks (176), connected to and protruding outwards from

the boundary portions (114, 131), and expanding from the central point (111), the detachable upholding blocks (176) supporting, from below, the slab type

projected slope blocks (171), thereby forming an upper slope (172) extending

downwards from an exposed upper edge of the plane plate (110), whereby the

ramp has a double-slope structure.

[24] The slab-shaped block ramp according to claim 1, further comprising a slab type front ramp (180), which includes:

a projected plane plate (160) having projected plane blocks (161), connected to and protruding outwards from the boundary portions (114, 131), and expanding from the central point (111), the projected plane blocks (161) having a plane

upper surface, and the upper surface of the projected plane plate (160) being

flush with that of the plane plate (110); and

a projected slope plate (170) having slab type projected blocks (171) and

detachable upholding blocks (176), connected to and protruding outwards from

the a boundary portion (165) of the projected plane plate (160), the detachable

upholding blocks (176) supporting, from below, the slab type projected slope

blocks (171), thereby forming an upper slope (172) extending downwards from an exposed upper edge of the boundary portion (165) of the projected plane plate (160),

whereby the ramp has enhanced functions and a double-slope structure.

[25] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, wherein the detachable upholding blocks (139, 145, 156 and/or 176) having different heights support, from below, the slab type slope blocks (134), slab type extensional slope blocks (140), the slab type side slope blocks (151) and/or the slab type projected slope blocks (171), thereby having an inclination ranging

from 1/5 to 1/20.

[26] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, wherein the slab type slope blocks (134), the slab type extensional slope

blocks (140), the slab type side slope blocks (151) and/or the slab type projected slope blocks (171) are placed on a slope base so as to have an inclination ranging from 1/5 to 1/20, by omitting the detachable upholding blocks (139, 145, 156

and/or 176) having different heights.

[27] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, further comprising:

a central insert (116, 120, 136, 142, 153, 162 and/or 173) disposed in a central upper recess of at least one of the plane blocks (115), the extensional plane

blocks (119), the slab type slope blocks (134), the slab type extensional slope

blocks (140), the slab type side slope blocks (151), the projected plane blocks

(161) and/or the slab type projected slope blocks (171), wherein the central insert (116, 120, 136, 142, 153, 162 and/or 173) is made of a different material from

the corresponding block (115, 119, 134, 140, 151, 161 and/or 171).

[28] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, further comprising:

an upper attachment (117, 121, 137, 143, 154, 163 and/or 174) attached to an

upper portion of at least one of the plane blocks (115), the extensional plane

blocks (119), the slab type slope blocks (134), the slab type extensional slope

blocks (140), the slab type side slope blocks (151), the projected plane blocks

(161) and/or the slab type projected slope blocks (171), wherein the upper

attachment (117, 121, 137, 143, 154, 163 and/or 174) is made of a different

material from the corresponding block (115, 119, 134, 140, 151, 161 and/or 171).

[29] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, further comprising:

a patterned portion (118, 122, 138, 144, 155, 164 and/or 175) embossed on or

engraved in an upper portion of at least one of the plane blocks (115), the extensional plane blocks (119), the slab type slope blocks (134), the slab type extensional slope blocks (140), the slab type side slope blocks (151), the projected plane blocks (161) and/or the slab type projected slope blocks (171).

[30] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, wherein wave features for enhancing engaging force are formed in a lateral

face of at least one of the plane blocks (115), the extensional plane blocks (119), the slab type slope blocks (134), the slab type extensional slope blocks (140), the slab type side slope blocks (151), the projected plane blocks (161) and/or the slab type projected slope blocks (171).

[31] The slab-shaped block ramp according to any one of the preceding claims 1 to

23, wherein the higher level surface (3) is curved, and the plane blocks (115), the extensional plane blocks (119), the slab type slope blocks (134), the slab type extensional slope blocks (140) and/or the upholding blocks (139, 145) forming the boundary portion (114, 131) have a curved shape conforming to the shape of the higher level surface (3), so that the boundary portions (114, 131) have a curved

shape.