CA1301519C - Elements with opening - Google Patents
Elements with openingInfo
- Publication number
- CA1301519C CA1301519C CA000551869A CA551869A CA1301519C CA 1301519 C CA1301519 C CA 1301519C CA 000551869 A CA000551869 A CA 000551869A CA 551869 A CA551869 A CA 551869A CA 1301519 C CA1301519 C CA 1301519C
- Authority
- CA
- Canada
- Prior art keywords
- lawn
- opening
- elements
- lateral sides
- element according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
ABSTRACT
The elements with opening are preferably combined into a lawn plate with openings, whereby these elements with opening are impressed. The plate comprises in its longitu-dinal direction an indentation whereby a bulge is provided on one side and a narrowing on the other side with a width corresponding to the one of the element with opening, resp. of the paving stone.
The individual elements with opening correspond in their dimension and their configuration to paving stones so that these paving stones can be seamlessly adjoined to the element with opening. When the elements are laid without adjoining paving stones there exists on the one hand an interlocking of the plates as well as a pleasant configura-tion of the latter, whereby the arrangement of the indivi-dual elements with opening having different dimension can vary within large limits.
In another example of execution in which elements with opening are laid round a tree, the element with opening is in two parts connected together by a traverse having a smaller thickness. The two lower, lateral edges of the lower part form part of a sector and a distance piece is provided at the upper edge on both sides of the upper part, the outer edges of this distance piece enclo-sing the same angle than the lower, lateral edges.
These elements with opening can be laid in a straight configuration or in a circle round a tree.
Both elements provide for pleasant configurations and they render possible a seamless transition to a pavement having corresponding configuration and dimension.
The elements with opening are preferably combined into a lawn plate with openings, whereby these elements with opening are impressed. The plate comprises in its longitu-dinal direction an indentation whereby a bulge is provided on one side and a narrowing on the other side with a width corresponding to the one of the element with opening, resp. of the paving stone.
The individual elements with opening correspond in their dimension and their configuration to paving stones so that these paving stones can be seamlessly adjoined to the element with opening. When the elements are laid without adjoining paving stones there exists on the one hand an interlocking of the plates as well as a pleasant configura-tion of the latter, whereby the arrangement of the indivi-dual elements with opening having different dimension can vary within large limits.
In another example of execution in which elements with opening are laid round a tree, the element with opening is in two parts connected together by a traverse having a smaller thickness. The two lower, lateral edges of the lower part form part of a sector and a distance piece is provided at the upper edge on both sides of the upper part, the outer edges of this distance piece enclo-sing the same angle than the lower, lateral edges.
These elements with opening can be laid in a straight configuration or in a circle round a tree.
Both elements provide for pleasant configurations and they render possible a seamless transition to a pavement having corresponding configuration and dimension.
Description
~ilS~
ELEMENTS WITH OPENIN~
BACKGROUND OF THE INVENTION
A number of lawn elements with opening are known which are either individually placed or formed into plates which are easier to be placed. These known lawn elements with opening are generally rectangular elements provided with a rectangular opening and the individual elements as well as the plates produced from them comprise generally straight edges. Due to their simple form, these lawn elements with opening are rarely used because they are not capable to satisfy higher requirements with respect to the configuratlon. If a normal pavement has to be placed adjacent to such lawn elements with opening, problems arise which are of constructional as well as of aesthetical nature as soon as the individual paving stones are of no simple rectangular form.
For example, the German Utility Model No. 7r102~691 disclo-ses an interconnecting stone for the lawn, wherein it is described that this stone can also be utilized together with other interconnecting stones. However, this stone is particular in that it consists of several rows connected together by frames, having interconnecting recesses and teeth at its longitudinal sides, whereby the rows consist of humps, between which earth and grass seed may be put.
One of the characteristics of this stone is that its longitudinal borders go through the humps. These stones present, whilst laid, just rows of humps~ and need parti-cular other stones for extending the pavement beyond lawn stones.
SU~MARY OF THE INVENTION
Consequently, it is an object of the present invention to realize elements with opening or a plate produced rom . .
~3~5gL~ -23~4~-281 them which on the one hand o~fers a wide scope for aesthetic configurations and on the other hand a full compatibillty with paving stones.
A similar problem arises with elements with opening which are intended to be placed round the trees. Known elements with opening for trees are generally of simple forms which are not compatible with normal paving stones nor with lawn stones with opening if these stones do not have a simple geometrical structure. Consequently, it is a further object of the presen-t invention to realize an element with opening intended to be placed round the trees which beside having an aesthetic, pleasant ~orm is compatible with other pavlng and lawn stones with opening and which can be easily arranged in a circular configuration. The first problem is solved in that the lawn element with opening has a size and a form corresponding to a paving stone having a corresponding size and which can be p]aced together with the former for providing a pavement in which the stones merge one into the other. The second problem is solved in that the element with opening is essentially sector shaped and constituted by two parts connected by a traverse, whereby the lower, narrower part comprises at the bottom two lateral edges which form part of the circular sector.
Therefore this invention seeks to provide a substantially sector-shaped lawn element comprising: an upper part having an interior opening, a bottom portion and a longitudinal axis, a lower part ~3~ 9 smaller than said upper part, sald lower part having an interio:r opening, a top portion, lateral sides and a longitudinal axis coinclding with the longi.tudinal axis of said upper part, the lateral sides lying along planes forming a sector, and a traverse connecting the bottom portion of said upper part with the top portion of said lower part, said lawn element adapted to be joined with paving stones of corresponding shape and dimension in a seamless transition.
This invention further seeks to provide a plurality of substantially sector-shaped ].awn elements, each comprisi.ng:
an upper part having interior opening, lateral sides, a bottom portion, distance pieces attached to the lateral sides and a longitudinal axis; a lower part smaller than said upper partl said lower part having an i.nterior opening, a top portion, lateral sides, and a longitudinal axis coinciding with the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector; and a traverse connecting the bottom portion of said upper part with the top portion of said lower part; whereby said lawn elements are adapted to be positioned in a concentric manner around a center, so that at locations near the center, said lower parts of said lawn elements and the distance pieces are substantially adjacent to one another, and at locations distant from the center, said upper parts of said lawn elements are substantially adjacent to each other.
The invention will be further described by means of a drawing of 2a , ~ ,, - ~
S~
234~4-281 examples of execution.
_IEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a plate formed by lawn elements with opening, Figure 2 shows a pavement formed by plates according to Fig. 1 and paving stones, Figure 3 shows a section along the line III-III of Fig. 2, 2b . i 1, i, ~3~.S~g Figure 4 shows a second example of execution of plates comprising lawn elements with opening, Figure 5 shows a further example of executlon of a plate formed by lawn elements with opening, Figure 6 shows a section along the line VI-VI of Fig.5, Figure 7 shows a variant of execution of the embodiment of Fig.5 at a magnified scale, Figure 8 shows an element with opening which can be placed in lawn as well as under trees, Figure 9 shows a section along the line ~X-IX of E`iy.8, at a reduced scale, Figure 10 shows an example of a configuration realized with elements according to Fig.8, and Figure 11 shows a pattern of the elements of Fig.8 arranged round a tree.
DETAILED DESCRIPTION OF THE INVENTION
One recognizes in Fig.1 a lawn plate with openings 3 formed of one and a half lawn elements with opening 1 and entire lawn elements with opening 2. In this example of execu~ion, the individual lawn elements with opening are impressed on the plate. The outer contours of the one and a half lawn stone with opening or of the entire lawn stone with opening correspond to those of the pa-ving stones which are shown in the U.~.A. Design Patent No. 287 884. As will be seen more clearly later on, it is not a question of the specific outer form of the lawn element with opening but rather that the outer form of the lawn element with opening coincides with the one of ~3~
the adjacent paving stone~ In this case, ~he internal opening 4, resp. 5 is rectangular, resp. square but it can be obviously of any other form~ However, it is preferable that the internal opening be as great as possible for achieving maximum turfing. The lawn plate with openings 3 comprises a toothing in the longitudinal direction, whereby a row of lawn elements with opening is offset in the longitudinal direction by one half of a normal lawn stone with opening in order to form a projecting part 6 and a void 7. On both sides of the projecting part or in the void, it is possible to arrange further lawn plates with openings or full paving stones as shown in Fig.2. In the left part of Fig.2 are arranged full paving stones - full stones 8, one and a half stones 9 and half stones 10 - and towards the bottom lawn plates with openings. From Fig.2 it can be seen further that the opening 4 at the one and a halE
stone element with opening is slightly greater than a half stone 10 so that such a stone can be inserted in the former in order e.g. to mark parking places or as shown in Fig.3, for having a palissade element 11 with the same outer form than the half stone 10 to be ar-ranged in the openings. Fig.3 shows that these palissade elements can be anchored in the earth. Such palissade elements are well suited e.g. as borders for parking places or for other markings which one desires to emphasize. Due to the fact that such palissade elements are relatively slim, they can break easily if a car collide with them so that heavy damages are avoided. In the section according to Fig.3 is illustrated how normal paving stones can be added to the lawn plates with openings, the transition being seamlessO
Fig.4 shows schematically different possibilities of ar-rangements and variants of execution. The lawn elements with opening as well as the related paving stones can be of simple, rectangular structure as illustrated or they may have the same form as illustrated in Figs.1 to 3 or any other form. In the right half of the drawing are ~3~l5~L~
illustrated lawn plates with openings which correspond to those of Fig.1 or 2 and it is shown how the openings of the lawn elements can be filled e.g. stripewise by means of half stones in order to mark parking places.
The half stones 1~ can have a colour different from the one of the lawn stones with opening or they may have a greater height than the lawn element with opening.
Corresponding paving stones can be added to these lawn plates with openings. Different possibilities of vari-ations are illustrated on the left side in ~ig.4. In the upper part of the left side is shown e.g. how the lawn plate 13 is arranged perpendicularly with respect to the other plates and how this plate is connected to the other without using the toothing, whereby openings for the lawn are created on both sides of the projecting part 14. Moreover, it Eollows from this plate that the lawn elernents, resp. their partition on the plate can be choosen at will and that it must not look as illustrated in Fig.1. Also for the plate 15 illustrated in the bottom of the left side in Fig.4, the partition of the lawn elements is different from the one of the plates illustrated previously. It comes out also that all plates comprise a toothing and that all openings are closed towards the outside.
In Figs. 5 to 7 is illustrated another example of execution of a lawn element with opening, resp. lawn plate with openings. An object of a lawn stone with 0 opening is to provide for as great a green surface as possible. On the other hand, it is clear that the lawn stone must have a sufficient great stability because it is normally passed -on vehicles, possibly also by heavy freight cars. In the examples of execution according to Figs.5 to 7, indentations 16 are provided at the outer edge as well as at the inner side, these indenta-tions being not through passing but diminishing in dimension towards the bottom. This permits to achieve a greater surface for growing in of grass, whilst the stability of such a plate or element is reduced only slightly. Fig.5 shows also another outer form of a lawn element with opening, resp. a lawn plate with openings 17 different from the preceding examples, whereby the outer form corresponds to a known paving stone already existing on the market, whereby these paving stones can be added to such lawn plates with openings, the transition being seamless.
In Fig.7 is illustrated further that also individual lawn elements with opening can be used, these elements corresponding e.g. to the one and a half stone of the corresponding paving stone. While one prefers lawn plates with openings for greater areas and also because of the stability, individual lawn stones with opening 18 are advantageous where smaller areas have to be paved or in order to permit a better adaptation to the ground.
The individual stones 18 can be also provided ~ith indentations 16.
Fig.8 shows a stone with opening which can be used as a lawn stone which, in accordance with Fig.10, can be laid on great surfaces or, in accordance with Fig.11, which can be used as a stone to ~e laid round a tree. The sector shaped element with opening illustrated in Fig.8 comprises an upper part 20 and a lower, smaller part 21, both parts being connected together by a traverse 22. As shown in Fig.9, the traverse 22 has not the same thick-ness than the parts 20 and 21 in order to allow for a covering with grass. The lower part 21, seen as a whole, has a shape the width of which is decreasing towards the bottom. For using such an element round a tree it is advantageous that at least a part of it is in form of a sector in order to facilitate the placing of such elements round a tree. In the present case of Fig.8, both lower, lateral edges 23 of the lower part 21 form part of a sector ~ith an angle of aperture of e.gO 24 to 30 or, as in the present example, of 27.6. This value of 27.6 has been choosen in order to form a 5~L~
circle of a diameter of 42 cm with a stone having a height of about 30 cm, a number of 13 of such elements being used in a full circle as shown in Fig.11. The tapering towards the top on both sides of the upper portion o~ the lower part 21 as well as the recesses 24 on both sides serve to reduce surface of the stone, resp. to increase the surface for earth or lawn. This upper portion can be arbitrarily shaped. The illustrated form of the upper part 20 fulfills only an aesthetic function and is of no great importance. Distance pieces 25 are connected on both sides of the upper edge of the upper part 20, the outer edges 26 of these distance pieces having the same conicity than the lower edges 23 of the lower part 21 and their thickness corresponding to the one of the traverse 22. This permits, as shown in Fig.11, to place the internal circle of elements round a tree, such that these elements adjoin each other~
reduction of the section 27 is provided between the distance pieces and the upper part 20 in order to facilitate the knocking off of these distance pieces if required. The upper edge 28 of the upper part 20 is curved and it comprises a narrowing 29, the lower edge 30 of the lower part 21 being also curved and comprising a bulge 31. The curved edges provide for a pleasant configuration and they increase the share of earth, resp. of lawn and they provide also a certain indentation in the transverse direction as partly shown in Fig.11. Both openings 32, resp. 33 can be of any form but it is advantageous that the opening share is as great as possible. It is possible to realize at least the upper opening 32 such that it is adapted to receive a half stone element.
Fig.10 shows how the elements with opening can be placed as lawn elements f whereby the stones are alternatively directed towards the top and towards the bottom, this permitting a placing having a straight configuration.
However, because of the curved outer edges of the stones, it as also possible to place the stones in an arc or circle shapecl configuration.
A surface covered with such stones with opening has a higher turfing share than a surface covered with lawn plates as illustrated in Fig.1. On the other hand, the wall thickness of the element with opening 19 is smaller so that it cannot sustain a charge 215 great as in the case of the lawn plates according to ~ig.1.
As already mentioned, Fig.11 shows a portion of a pattern placed round a tree and it is shown how it is possible to arrange the elements with opening 19 in concentric circles. It can be seen from Fig.11 that for the second and the further circles the distance pieces 25 must be knocked off. However, it is also obviously possible to produce elements with opening which do not comprise distance pieces. For an opening of 42 cm in diameter one requires 13 stones and 26 stones for the second concentric circle and 39 stones for the third concentric circle, provided these stones with opening have a height of 30 cm and an upper width o~ about 18 cm when the distance pieces are knocked off. It is clear that any other dimensions can be utilized. It is also possible, starting from concentric circles, to place the stones in accordance Witi1 Fig.10 and to proceed further in a straight or in a curved configura-tion. It is also possible, within the inventive idea, to form the upper edge in accordance with a known paving stone in order to continue the pavement. It is also visible from Fig.10 that the elements with opening can be offset by one piece, whereby the distance pieces together with the recesses form an indentation 34.
Moreover, in this case, at least a part of the outer contour has a form corresponding to a set of paving stones order to ensure a seamless transition. For this reason, the recesses 34 on both sides have a shape which accepts a half paving stone 10.
ELEMENTS WITH OPENIN~
BACKGROUND OF THE INVENTION
A number of lawn elements with opening are known which are either individually placed or formed into plates which are easier to be placed. These known lawn elements with opening are generally rectangular elements provided with a rectangular opening and the individual elements as well as the plates produced from them comprise generally straight edges. Due to their simple form, these lawn elements with opening are rarely used because they are not capable to satisfy higher requirements with respect to the configuratlon. If a normal pavement has to be placed adjacent to such lawn elements with opening, problems arise which are of constructional as well as of aesthetical nature as soon as the individual paving stones are of no simple rectangular form.
For example, the German Utility Model No. 7r102~691 disclo-ses an interconnecting stone for the lawn, wherein it is described that this stone can also be utilized together with other interconnecting stones. However, this stone is particular in that it consists of several rows connected together by frames, having interconnecting recesses and teeth at its longitudinal sides, whereby the rows consist of humps, between which earth and grass seed may be put.
One of the characteristics of this stone is that its longitudinal borders go through the humps. These stones present, whilst laid, just rows of humps~ and need parti-cular other stones for extending the pavement beyond lawn stones.
SU~MARY OF THE INVENTION
Consequently, it is an object of the present invention to realize elements with opening or a plate produced rom . .
~3~5gL~ -23~4~-281 them which on the one hand o~fers a wide scope for aesthetic configurations and on the other hand a full compatibillty with paving stones.
A similar problem arises with elements with opening which are intended to be placed round the trees. Known elements with opening for trees are generally of simple forms which are not compatible with normal paving stones nor with lawn stones with opening if these stones do not have a simple geometrical structure. Consequently, it is a further object of the presen-t invention to realize an element with opening intended to be placed round the trees which beside having an aesthetic, pleasant ~orm is compatible with other pavlng and lawn stones with opening and which can be easily arranged in a circular configuration. The first problem is solved in that the lawn element with opening has a size and a form corresponding to a paving stone having a corresponding size and which can be p]aced together with the former for providing a pavement in which the stones merge one into the other. The second problem is solved in that the element with opening is essentially sector shaped and constituted by two parts connected by a traverse, whereby the lower, narrower part comprises at the bottom two lateral edges which form part of the circular sector.
Therefore this invention seeks to provide a substantially sector-shaped lawn element comprising: an upper part having an interior opening, a bottom portion and a longitudinal axis, a lower part ~3~ 9 smaller than said upper part, sald lower part having an interio:r opening, a top portion, lateral sides and a longitudinal axis coinclding with the longi.tudinal axis of said upper part, the lateral sides lying along planes forming a sector, and a traverse connecting the bottom portion of said upper part with the top portion of said lower part, said lawn element adapted to be joined with paving stones of corresponding shape and dimension in a seamless transition.
This invention further seeks to provide a plurality of substantially sector-shaped ].awn elements, each comprisi.ng:
an upper part having interior opening, lateral sides, a bottom portion, distance pieces attached to the lateral sides and a longitudinal axis; a lower part smaller than said upper partl said lower part having an i.nterior opening, a top portion, lateral sides, and a longitudinal axis coinciding with the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector; and a traverse connecting the bottom portion of said upper part with the top portion of said lower part; whereby said lawn elements are adapted to be positioned in a concentric manner around a center, so that at locations near the center, said lower parts of said lawn elements and the distance pieces are substantially adjacent to one another, and at locations distant from the center, said upper parts of said lawn elements are substantially adjacent to each other.
The invention will be further described by means of a drawing of 2a , ~ ,, - ~
S~
234~4-281 examples of execution.
_IEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a plate formed by lawn elements with opening, Figure 2 shows a pavement formed by plates according to Fig. 1 and paving stones, Figure 3 shows a section along the line III-III of Fig. 2, 2b . i 1, i, ~3~.S~g Figure 4 shows a second example of execution of plates comprising lawn elements with opening, Figure 5 shows a further example of executlon of a plate formed by lawn elements with opening, Figure 6 shows a section along the line VI-VI of Fig.5, Figure 7 shows a variant of execution of the embodiment of Fig.5 at a magnified scale, Figure 8 shows an element with opening which can be placed in lawn as well as under trees, Figure 9 shows a section along the line ~X-IX of E`iy.8, at a reduced scale, Figure 10 shows an example of a configuration realized with elements according to Fig.8, and Figure 11 shows a pattern of the elements of Fig.8 arranged round a tree.
DETAILED DESCRIPTION OF THE INVENTION
One recognizes in Fig.1 a lawn plate with openings 3 formed of one and a half lawn elements with opening 1 and entire lawn elements with opening 2. In this example of execu~ion, the individual lawn elements with opening are impressed on the plate. The outer contours of the one and a half lawn stone with opening or of the entire lawn stone with opening correspond to those of the pa-ving stones which are shown in the U.~.A. Design Patent No. 287 884. As will be seen more clearly later on, it is not a question of the specific outer form of the lawn element with opening but rather that the outer form of the lawn element with opening coincides with the one of ~3~
the adjacent paving stone~ In this case, ~he internal opening 4, resp. 5 is rectangular, resp. square but it can be obviously of any other form~ However, it is preferable that the internal opening be as great as possible for achieving maximum turfing. The lawn plate with openings 3 comprises a toothing in the longitudinal direction, whereby a row of lawn elements with opening is offset in the longitudinal direction by one half of a normal lawn stone with opening in order to form a projecting part 6 and a void 7. On both sides of the projecting part or in the void, it is possible to arrange further lawn plates with openings or full paving stones as shown in Fig.2. In the left part of Fig.2 are arranged full paving stones - full stones 8, one and a half stones 9 and half stones 10 - and towards the bottom lawn plates with openings. From Fig.2 it can be seen further that the opening 4 at the one and a halE
stone element with opening is slightly greater than a half stone 10 so that such a stone can be inserted in the former in order e.g. to mark parking places or as shown in Fig.3, for having a palissade element 11 with the same outer form than the half stone 10 to be ar-ranged in the openings. Fig.3 shows that these palissade elements can be anchored in the earth. Such palissade elements are well suited e.g. as borders for parking places or for other markings which one desires to emphasize. Due to the fact that such palissade elements are relatively slim, they can break easily if a car collide with them so that heavy damages are avoided. In the section according to Fig.3 is illustrated how normal paving stones can be added to the lawn plates with openings, the transition being seamlessO
Fig.4 shows schematically different possibilities of ar-rangements and variants of execution. The lawn elements with opening as well as the related paving stones can be of simple, rectangular structure as illustrated or they may have the same form as illustrated in Figs.1 to 3 or any other form. In the right half of the drawing are ~3~l5~L~
illustrated lawn plates with openings which correspond to those of Fig.1 or 2 and it is shown how the openings of the lawn elements can be filled e.g. stripewise by means of half stones in order to mark parking places.
The half stones 1~ can have a colour different from the one of the lawn stones with opening or they may have a greater height than the lawn element with opening.
Corresponding paving stones can be added to these lawn plates with openings. Different possibilities of vari-ations are illustrated on the left side in ~ig.4. In the upper part of the left side is shown e.g. how the lawn plate 13 is arranged perpendicularly with respect to the other plates and how this plate is connected to the other without using the toothing, whereby openings for the lawn are created on both sides of the projecting part 14. Moreover, it Eollows from this plate that the lawn elernents, resp. their partition on the plate can be choosen at will and that it must not look as illustrated in Fig.1. Also for the plate 15 illustrated in the bottom of the left side in Fig.4, the partition of the lawn elements is different from the one of the plates illustrated previously. It comes out also that all plates comprise a toothing and that all openings are closed towards the outside.
In Figs. 5 to 7 is illustrated another example of execution of a lawn element with opening, resp. lawn plate with openings. An object of a lawn stone with 0 opening is to provide for as great a green surface as possible. On the other hand, it is clear that the lawn stone must have a sufficient great stability because it is normally passed -on vehicles, possibly also by heavy freight cars. In the examples of execution according to Figs.5 to 7, indentations 16 are provided at the outer edge as well as at the inner side, these indenta-tions being not through passing but diminishing in dimension towards the bottom. This permits to achieve a greater surface for growing in of grass, whilst the stability of such a plate or element is reduced only slightly. Fig.5 shows also another outer form of a lawn element with opening, resp. a lawn plate with openings 17 different from the preceding examples, whereby the outer form corresponds to a known paving stone already existing on the market, whereby these paving stones can be added to such lawn plates with openings, the transition being seamless.
In Fig.7 is illustrated further that also individual lawn elements with opening can be used, these elements corresponding e.g. to the one and a half stone of the corresponding paving stone. While one prefers lawn plates with openings for greater areas and also because of the stability, individual lawn stones with opening 18 are advantageous where smaller areas have to be paved or in order to permit a better adaptation to the ground.
The individual stones 18 can be also provided ~ith indentations 16.
Fig.8 shows a stone with opening which can be used as a lawn stone which, in accordance with Fig.10, can be laid on great surfaces or, in accordance with Fig.11, which can be used as a stone to ~e laid round a tree. The sector shaped element with opening illustrated in Fig.8 comprises an upper part 20 and a lower, smaller part 21, both parts being connected together by a traverse 22. As shown in Fig.9, the traverse 22 has not the same thick-ness than the parts 20 and 21 in order to allow for a covering with grass. The lower part 21, seen as a whole, has a shape the width of which is decreasing towards the bottom. For using such an element round a tree it is advantageous that at least a part of it is in form of a sector in order to facilitate the placing of such elements round a tree. In the present case of Fig.8, both lower, lateral edges 23 of the lower part 21 form part of a sector ~ith an angle of aperture of e.gO 24 to 30 or, as in the present example, of 27.6. This value of 27.6 has been choosen in order to form a 5~L~
circle of a diameter of 42 cm with a stone having a height of about 30 cm, a number of 13 of such elements being used in a full circle as shown in Fig.11. The tapering towards the top on both sides of the upper portion o~ the lower part 21 as well as the recesses 24 on both sides serve to reduce surface of the stone, resp. to increase the surface for earth or lawn. This upper portion can be arbitrarily shaped. The illustrated form of the upper part 20 fulfills only an aesthetic function and is of no great importance. Distance pieces 25 are connected on both sides of the upper edge of the upper part 20, the outer edges 26 of these distance pieces having the same conicity than the lower edges 23 of the lower part 21 and their thickness corresponding to the one of the traverse 22. This permits, as shown in Fig.11, to place the internal circle of elements round a tree, such that these elements adjoin each other~
reduction of the section 27 is provided between the distance pieces and the upper part 20 in order to facilitate the knocking off of these distance pieces if required. The upper edge 28 of the upper part 20 is curved and it comprises a narrowing 29, the lower edge 30 of the lower part 21 being also curved and comprising a bulge 31. The curved edges provide for a pleasant configuration and they increase the share of earth, resp. of lawn and they provide also a certain indentation in the transverse direction as partly shown in Fig.11. Both openings 32, resp. 33 can be of any form but it is advantageous that the opening share is as great as possible. It is possible to realize at least the upper opening 32 such that it is adapted to receive a half stone element.
Fig.10 shows how the elements with opening can be placed as lawn elements f whereby the stones are alternatively directed towards the top and towards the bottom, this permitting a placing having a straight configuration.
However, because of the curved outer edges of the stones, it as also possible to place the stones in an arc or circle shapecl configuration.
A surface covered with such stones with opening has a higher turfing share than a surface covered with lawn plates as illustrated in Fig.1. On the other hand, the wall thickness of the element with opening 19 is smaller so that it cannot sustain a charge 215 great as in the case of the lawn plates according to ~ig.1.
As already mentioned, Fig.11 shows a portion of a pattern placed round a tree and it is shown how it is possible to arrange the elements with opening 19 in concentric circles. It can be seen from Fig.11 that for the second and the further circles the distance pieces 25 must be knocked off. However, it is also obviously possible to produce elements with opening which do not comprise distance pieces. For an opening of 42 cm in diameter one requires 13 stones and 26 stones for the second concentric circle and 39 stones for the third concentric circle, provided these stones with opening have a height of 30 cm and an upper width o~ about 18 cm when the distance pieces are knocked off. It is clear that any other dimensions can be utilized. It is also possible, starting from concentric circles, to place the stones in accordance Witi1 Fig.10 and to proceed further in a straight or in a curved configura-tion. It is also possible, within the inventive idea, to form the upper edge in accordance with a known paving stone in order to continue the pavement. It is also visible from Fig.10 that the elements with opening can be offset by one piece, whereby the distance pieces together with the recesses form an indentation 34.
Moreover, in this case, at least a part of the outer contour has a form corresponding to a set of paving stones order to ensure a seamless transition. For this reason, the recesses 34 on both sides have a shape which accepts a half paving stone 10.
Claims (12)
1. A substantially sector-shaped lawn element comprising:
an upper part having an interior opening, a bottom portion and a longitudinal axis, a lower part smaller than said upper part, said lower part having an interior opening, a top portion, lateral sides and a longitudinal axis coinciding with the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector, and a traverse connecting the bottom portion of said upper part with the top portion of said lower part, said lawn element adapted to be joined with paving stones of corresponding shape and dimension in a seamless transition.
an upper part having an interior opening, a bottom portion and a longitudinal axis, a lower part smaller than said upper part, said lower part having an interior opening, a top portion, lateral sides and a longitudinal axis coinciding with the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector, and a traverse connecting the bottom portion of said upper part with the top portion of said lower part, said lawn element adapted to be joined with paving stones of corresponding shape and dimension in a seamless transition.
2. A lawn element according to claim 1, wherein said upper part, said lower part and said traverse each have a thickness, the thickness of said traverse being smaller than the thickness of said upper and lower parts.
3. A lawn element according to claim 1 or claim 2, wherein the lateral sides of said lower part enclose an angle of at least 24°.
4. A lawn element according to claim 1 or 2, wherein the lateral sides of said lower part enclose an angle no greater than 30°.
5. A lawn element according to claim 1, wherein said upper part has lateral sides.
6. A lawn element according to claim 5, wherein distance pieces are attached to the lateral sides of said upper part, said distance pieces having outer sides which lie substantially on the planes forming the sector.
7. A lawn element according to claim 6, wherein said distance pieces have a thickness which is substantially similar to the thickness of said traverse.
8. A lawn element according to claim 6, wherein the distance pieces have inner sides and a neck which connects the inner sides of said distance pieces with the lateral sides of said upper part.
9. A lawn element according to claim 1, wherein said upper part has a top side which is curved inwardly.
10. A lawn element according to claim 1, wherein said lower part has a bottom side which is curved outwardly.
11. A lawn element according to claim 1, where said lower part has indentations on its lateral sides.
12. A plurality of substantially sector-shaped lawn elements, each comprising:
an upper part having interior opening, lateral sides, a bottom portion, distance pieces attached to the lateral sides and a longitudinal axis;
a lower part smaller than said upper part, said lower part having an interior opening, a top portion, lateral sides, and a longitudinal axis coinciding with -the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector;
and a traverse connecting the bottom portion of said upper part with the top portion of said lower part;
whereby said lawn elements are adapted to be positioned in a concentric manner around a center, so that at locations near the center, said lower parts of said lawn elements and the distance pieces are substantially adjacent to one another, and at locations distant from the center, said upper parts of said lawn elements are substantially adjacent to each other.
an upper part having interior opening, lateral sides, a bottom portion, distance pieces attached to the lateral sides and a longitudinal axis;
a lower part smaller than said upper part, said lower part having an interior opening, a top portion, lateral sides, and a longitudinal axis coinciding with -the longitudinal axis of said upper part, the lateral sides lying along planes forming a sector;
and a traverse connecting the bottom portion of said upper part with the top portion of said lower part;
whereby said lawn elements are adapted to be positioned in a concentric manner around a center, so that at locations near the center, said lower parts of said lawn elements and the distance pieces are substantially adjacent to one another, and at locations distant from the center, said upper parts of said lawn elements are substantially adjacent to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000551869A CA1301519C (en) | 1987-11-16 | 1987-11-16 | Elements with opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000551869A CA1301519C (en) | 1987-11-16 | 1987-11-16 | Elements with opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1301519C true CA1301519C (en) | 1992-05-26 |
Family
ID=4136845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000551869A Expired - Lifetime CA1301519C (en) | 1987-11-16 | 1987-11-16 | Elements with opening |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1301519C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8033816B2 (en) | 2005-10-20 | 2011-10-11 | Rinox Inc. | Apparatus and method for making cobble-like blocks |
-
1987
- 1987-11-16 CA CA000551869A patent/CA1301519C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8033816B2 (en) | 2005-10-20 | 2011-10-11 | Rinox Inc. | Apparatus and method for making cobble-like blocks |
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| Date | Code | Title | Description |
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| MKLA | Lapsed |