This invention relates generally to wall blocks and the manufacture of wall blocks having one or more faces and/or side walls with recesses formed from multi-faceted surfaces; each individual faceted surface may have any variety of differing shapes, sizes and contours. This invention also relates to walls and other structures constructed from such blocks and in particular, this invention relates to a system that allows the construction of a wall or other structure with varying block faces to create an overall random and irregular surface appearance to the structure and an overall desirable aesthetic.
Wall blocks are used in various landscaping projects and are available in a wide variety of styles. Such wall blocks have gained popularity because they are mass produced and, consequently, relatively inexpensive. They are structurally sound, easy and relatively inexpensive to install, and couple the durability of concrete or any other suitable material with the attractiveness of various architectural finishes. The shape of the block is also an important feature during the construction of a wall or other structure with the wall blocks. There are advantages to having non-parallel side surfaces on these blocks when constructing a wall. The angles formed by these side surfaces permit construction of curvilinear walls, and moreover, permit the amount of curvature to vary according to the terrain and desired appearance of the wall. Numerous methods and materials exist for the construction of walls and other structures with such blocks.
Another important feature of wall blocks is the appearance of the block. Typically, wall blocks are manufactured to have the desired appearance on the front face (i.e., the outer face of a wall) only. Many manufacturers vary the color and the texture or pattern on this front face as desired because creating a random pattern in the face of a wall or other structure is highly desirable. Alternatively, manufacturers may produce multiple block shapes/sizes for use in the construction of a wall or other structure to create a random pattern in the structure and to give the visually exposed surfaces of the structure a more overall irregular or non-repeating appearance. This is inefficient from a production standpoint because this requires multiple molds and more kinds of blocks to inventory. If only one face of the block is intended to be the front face, then the block system will suffer a trade-off between having enough face sizes to create a random, natural appearance and the cost and inefficiency of using multiple molds and creating multiple inventory items.
It would be desirable to provide a system of blocks for constructing a wall or other structure that combines the ease of installation of modern segmental wall block units with the attractive appearance of a random, irregularly patterned wall composed of wall blocks of varying face embodiments with only one size of block. The block system should be efficient, easy to use and allow the construction of walls with 90 degree corners and the construction of freestanding walls and other structures. It would also be desirable to provide a wall block and multiple wall block embodiments that could be used in multiple orientations to maximize the random appearance of any exposed surface of the structure constructed with the blocks.
In an embodiment, the invention provides a wall block, wall block system, method of constructing a wall or other structure and a method of manufacturing a block wherein the wall block has a front or first face, a rear or second face, and two side surfaces, at least one of the front face, rear face, and the two side surfaces consisting of multiple vertically planar surfaces of differing shapes and sizes and multiple faceted surfaces of differing shapes, sizes and contours. The block may also have a side surface that is non-orthogonal to the front and rear face and that may be vertically planar. It should be understood that the blocks of the present may be of any type, size, shape, or dimension as desired. It should further be understood that the block could be a retaining wall block, a CMU (Concrete Masonry Unit) block, a wall panel, a tile, a veneer or other similar building/construction product. In the construction of a wall or other structure with the blocks of the present invention, the front and rear faces along with their orientations may be interchangeable as they may have similar multi-faceted irregular appearances; that is, these faces may be either the front or the back of the block and may be positioned with the top surface facing up or the top surface facing down. The front face of the wall block may have a greater surface area than the rear face. In addition, in one embodiment at least one side surface may have a similar multi-faceted irregular appearance as that of the front and rear faces. Thus, depending upon the dimensions of the block, the block may be rotated such that any of the front, rear and at least one of the side surfaces can be the “front” of the block.
Any or all of the front or first face, rear or second face and side surfaces of the wall block may have one or more geometric or prismatic indentations or recesses. Each geometric recess can be formed from a corresponding geometric or prismatic projection in the liner or side wall of the mold cavity as the wall block is molded. Each geometric recess (and geometric projection) can have any desired three dimensional geometric or prismatic shape as desired. Additionally, the shape of the three dimensional geometric or prismatic recess (and geometric projection) can have any dimension as desired. Further, the complexity of the shape of each three dimensional geometric or prismatic recess (and geometric projection) can vary greatly, such that, the geometric recess may have any number of faceted surfaces corresponding to the number of sides/surfaces of the geometric projection of the mold that imparts the three dimensional shape of the recess into the face of the block during the molding process. The faceted surfaces of each geometric recess (and geometric projection) may have any desired contour and may be curvilinear, planar or any other desired contour. In one desirable embodiment, all the faceted surfaces of each recess or indentation in each face of the block may have a drafting contour or drafting angle relative to the formation of each individual surface in a mold cavity, as known in the art, such that a block formed in a mold cavity may be readily stripped from the mold cavity. The mold cavity may have fixed or static side walls with no undercutting, and may have each geometric projection that forms the recess or indentation in the face of the block fixedly attached to each or any side wall of the mold cavity as desired. This manufacturing method allows for faster and lower cost block production. It should be understood however, that this is not limiting, and depending upon the application the mold cavity could utilize removable liners with movable mold cavity side walls.
The one or more geometric or prismatic recesses or indentations on each face of the block create shadowing effects along the faces of the block that enhance the visual aesthetic of the block. Additionally, the differing variations of the faceted surfaces that form each individual recess or indentation in the surfaces of the blocks used in the assembly of a wall or other structure give the visually exposed surfaces of the structure more visual movement, irregularity and randomness. Irregularity or irregular appearance in this context may be defined to mean that a regular geometric pattern is not readily apparent either in the individual face of the block or the visually exposed surface of a structure even though surfaces of the block, block faces and overall structure may consist of straight line segments or regular geometric curved segments. Further, the irregularity or randomness of the visually exposed surfaces of the structure may be enhanced by assembling the structure with multiple embodiments of blocks having different variations of indentations and recesses and with some of the blocks having the top surface of the block (as manufactured in a mold) facing upward and with some of the blocks with the bottom surface of the block (as manufactured in a mold) facing upward. Also, assembling the structure such that any of the front face, rear face, top surface or side faces may form any part of the visually exposed surfaces of the structure, whether the block be top side up, bottom side up, will further enhance the irregularity and randomness of the visually exposed surface. The more randomness/irregularity when assembling/positioning the blocks in the structure also helps to create more randomness and irregularity in the visually exposed surfaces of the wall.
In an embodiment the invention provides a wall block system that includes a plurality of wall blocks having a block body with a top surface opposed to a bottom surface, a first side surface opposed to a second side surface, and a front face opposed to a rear face, the block body having a height as measured from the top surface to the bottom surface, the front face, rear face and side surfaces having an outermost surface, at least one of the front face, rear face and side surfaces having at least a first type geometric indentation recessed into the block body from the outermost surface, the first type geometric indentation separating a first vertically planar portion of the outermost surface from a second vertically planar portion of the outermost surface. The wall block system including that the first type geometric indentation has at least first and second faceted surfaces, the first faceted surface having a planar contour and the second faceted surface having a non-planar contour, the first and second faceted surfaces each narrow along the height of the block from the top surface towards the bottom surface, the first and second faceted surfaces each extending outward along the height of the block from the top surface towards the bottom surface. The wall block system including that the first vertically planar portion of the outermost surface forms a first edge with the first faceted surface of the first type geometric indentation that is straight and the second vertically planar portion of the outermost surface forms a second edge with the second faceted surface of the first type geometric indentation that is curvilinear.
The wall block system may include that during the assembly of a structure with at least a first course of wall blocks having at least one visually exposed surface, any one of the plurality of wall blocks may be positioned in the at least one course with any of the front face, rear face or side surfaces forming a part of the visually exposed surface. The wall block system may also include that any of the plurality of wall blocks may be positioned in the at least one course of wall blocks with the top surface of the wall block facing upward or the bottom surface of the wall block facing upward. The wall block system may include that during the assembly of a structure having at least a first lower course of wall blocks and a second upper course of wall blocks with at least one visually exposed surface, the upper course of wall blocks is assembled with a plurality of wall blocks having a top surface with at least a first geometric indentation recessed into the block body from an uppermost surface, the first geometric indentation separating a first horizontally planar portion of the uppermost surface from a second horizontally planar portion of the uppermost surface, the first geometric indentation having at least first and second faceted surfaces.
The wall block system may include that at least one of the front face, rear face and side surfaces of at least some of the plurality of wall blocks has at least a second type geometric indentation recessed into the block body from the outermost surface, the second type geometric indentation separating one vertically planar portion of the outermost surface from another vertically planar portion of the outermost surface, wherein the second type geometric indentation has at least first and second faceted surfaces, the first faceted surface having a non-planar contour and the second faceted surface having a non-planar contour, and wherein one of the vertically planar portions of the outermost surface forms an edge with the first faceted surface of the second type geometric indentation that is curvilinear and the other of the vertically planar portion of the outermost surface forms an edge with the second faceted surface of the second type geometric indentation that is curvilinear. The wall block system may further include that at least one of the front face, rear face and side surfaces of at least some of the plurality of wall blocks has at least a third type geometric indentation recessed into the block body from the outermost surface, the third type geometric indentation separating one vertically planar portion of the outermost surface from another vertically planar portion of the outermost surface, wherein the third type geometric indentation has at least first and second faceted surfaces, the first faceted surface having a planar contour and the second faceted surface having a planar contour, and the system including that one of the vertically planar portions of the outermost surface forms an edge with the first faceted surface of the third type geometric indentation that is straight and the other of the vertically planar portion of the outermost surface forms an edge with the second faceted surface of the third type geometric indentation that is straight.
The wall block system may include that each of the front faces of the plurality of wall blocks have at least two of any of the first, second and third types of geometric indentations. The wall block system may further include that each of the rear faces and at least one of the side surfaces of the plurality of wall blocks have at least one of any of the first, second and third types of geometric indentations. The wall block system may further include that at least one of the front face, rear face and side surfaces of at least some of the plurality of wall blocks has at least a fourth type geometric indentation recessed into the block body from the outermost surface, the fourth type geometric indentation separating a vertically planar portion of the outermost surface from another vertically planar portion of the outermost surface, wherein the fourth geometric indentation has at least first, second, third and fourth faceted surfaces and wherein at least two of the faceted surfaces are non-planar and at least one of the faceted surfaces is planar.
In an embodiment the invention provides a mold assembly for producing wall blocks having a block body with a top surface opposed to a bottom surface, a first side surface opposed to a second side surface, and a front face opposed to a rear face, the block body having a height as measured from the top surface to the bottom surface, the front face, rear face and side surfaces having an outermost surface located, at least one of the front and rear faces having at least first and second geometric indentations recessed into the block body from the outermost surface, the first geometric indentation separating a first vertically planar portion of the outermost surface from a second vertically planar portion of the outermost surface, and the second geometric indentation separating the second vertically planar portion of the outermost surface from a third vertically planar portion, the first geometric indentation having at least first and second faceted surfaces, the first faceted surface having a planar contour and the second faceted surface having a non-planar contour, the first and second faceted surfaces each narrow along the height of the block from the top surface towards the bottom surface, the first and second faceted surfaces each extending outward along the height of the block from the top surface towards the bottom surface, and the second geometric indentation having at least first and second faceted surfaces, the first and second faceted surfaces each narrow along the height of the block from the top surface towards the bottom surface, the first and second faceted surfaces each extend outward along the height of the block from the top surface towards the bottom surface, the mold assembly including a production pallet; a stripper shoe; and a mold box including opposed front and rear walls and opposed first and second side walls which together with the front and rear walls form a perimeter of at least one mold cavity shaped to form a block during a block forming process, the mold box having an open top and an open bottom, the production pallet enclosing the open bottom of the mold box during a block forming process, the stripper shoe enclosing at least a portion of the open top of the mold box during a block forming process, at least one of the front and rear walls of the mold assembly having a molding surface that forms the at least first and second geometric indentations into the at least one of the front and rear faces of the wall block.
The mold assembly further including that the stripper shoe has a molding surface and that the molding surface of the stripper shoe molds at least a first geometric indentation into the block body in the top surface of the block, the first geometric indentation separating a first horizontally planar portion of the uppermost surface of the top surface from a second horizontally planar portion of the uppermost surface, the first geometric indentation having at least first and second faceted surfaces.
It should be understood that the number, location, shapes and dimensions of geometric or prismatic recesses or indentations are not limiting, thus any or all of the front face, the rear face, the side surfaces and the top surface can have any number, location, shape or dimension of geometric or prismatic recesses or indentations as desired. Any or all of the front face, rear face, side surfaces and top surface may also have false joints of varying widths and depths.
In this application, “upper” and “lower” refer to the placement of the block in a wall. The lower, or bottom, surface may be placed such that it faces the ground, the lower surface may be the bottom surface of the block as manufactured in a mold cavity or may be the top surface of the block as manufactured in a mold cavity (the upper surface may be the top surface of the block as manufactured in a mold cavity or the bottom surface of the block as manufactured in a mold cavity), as such, the block may or may not be oriented in the wall in a flipped position relative to its manufacture in the mold cavity. During construction of a wall, one row of blocks is laid down, forming a course. An upper course may be formed on top of this lower course by positioning the lower surface of one block on the upper surface of another block. It should be understood that the placement of a block in each course of a wall is not limiting and any of the front, rear or side faces of any one block may be used to form the front (or visually exposed) surface of the wall or structure. The front and rear faces (and side surfaces) of one block may also have different surface areas. These features contribute to the random appearance and the irregularity of the pattern of the wall as well. Additionally, the blocks can be positioned with the top surface (as manufactured in a mold cavity) facing upward or downward, which combined with altering the orientations of the front face, rear face, side surfaces of each block relative to another block (and/or multiple block embodiments) changes/alters the appearance/aesthetic of the visually exposed surface of the wall, further enhancing the desired random/nonrepeating/irregular appearance of the wall.
One aspect of this invention is a block system that may comprise multiple embodiments of blocks with differently dimensioned, interchangeable front and back faces. The blocks can be used to construct an eye pleasing, irregularly patterned wall having multi-faceted surfaces and vertically planar surfaces. The irregular and random pattern of the surface of the wall is due to the variation in the number, shape and contour of the faceted and vertically planar surfaces of the blocks, the number, shape and contour of the faceted and vertically planar surfaces of any or all of the individual faces of each embodiment of the blocks, and the placement/orientation of the blocks in the wall or other structure that is assembled. The front and rear faces of the block may be interchangeable and either side face may be used for any visually exposed surface of the structure being constructed to increase the overall randomness, irregularity, variety and complexity of the appearance of the exposed surfaces of the structure. In addition, one or both side faces may be used for any visually exposed surface of the structure. The shape of the block may also permit the construction of stable walls and other structures having curved, or serpentine, shapes. It should be understood that blocks of the present invention may be of any type, size, shape, or dimension as desired, and, as such, the specific shape of block shown in the drawing figures is not limiting.
The blocks may be provided with pin holes, pin-receiving apertures, channels, or cores, which, along with pins that are adapted to be received in the pin-receiving apertures, may form an attachment system among the blocks in a structure. Any number, shape and size of pin holes, apertures, channels, cores and pins could be used, as known in the art.
The side surfaces, including the front and rear faces of block 100, meet to form corners. For example, front or first face 112 meets second side surface 118 to form corner 113. Front or first face 112 meets first side surface 116 to form corner 115. Rear or second face 114 meets first side surface 116 to form corner 117 and rear face 114 meets second side surface 116 to form corner 119. Each corner is formed by the intersection of the projections of vertical planar surfaces directly adjacent to each corner. For example, corner 113 is formed by vertical planar surface 113a of front face 112 and the vertically planar surface of second side surface 118. Corner 115 is formed by vertical planar surface 115a of front face 112 and vertically planar surface 115b of first side surface 116. Corner 117 is formed by vertically planar surface 117a of rear face 114 and vertically planar surface 117b of first side surface 116. Corner 119 is formed by vertically planar surface 119a of rear face 114 and the vertically planar surface of second side surface 118. The vertically planar surfaces of each corner may directly meet/abut/adjoin each respective vertically planar surface to form a sharp corner. Alternatively, the vertically planar surfaces forming each respective corner may be given a radius, a bevel or multiple angled surfaces, as desired, to reduce the sharpness/severity of the corner and/or to create additional shadowing effects on the true joints located between adjacently positioned blocks in a structure.
Referring to
Each geometric indentation or recess formed into a face of the present invention has a first edge with a first vertically planar surface and a second edge with a second vertically planar surface. As can be seen in
False joint 112FJ of front face 112 extends into block body 120 from vertically planar surfaces 132 and 133. The false joint may have any dimension desired. The surfaces of the false joint may have angular slopes from the bottom surface of the block towards the top surface of the block and could have any degree of slope as desired. Additionally, the width and depth of the false joint may vary along the height of the block such that the false joint may widen/narrow or deepen/shallow from the bottom surface of the block towards the top surface of the block. In one desired embodiment, the surfaces that form the false joints could have vertical planar surfaces or could have drafting angles or drafting contours relative to their formation in a mold cavity so that they can be more easily stripped from the mold cavity. Additionally, as can be seen in
Referring to
Geometric recess 114G2 has faceted surface 146 and faceted surface 147. Faceted surface 146 extends angularly into block body 120 from vertically planar surface 145 and faceted surface 147 extends angularly into block body 120 from vertically planar surface 119a. Vertically planar surface 145 only partially extends the height of rear face 114 from the bottom face to the top face because of the proximity of geometric recess 114G2 to false joint 114FJ along rear face 114. As can be seen in
Referring to
The vertical planar surfaces of faces 112 and 114 along with the vertical planar surfaces of first side surface 116 create vertically planar outermost surfaces of the block body that provide for increased durability during the shipping of the blocks by allowing vertical surfaces of adjacent blocks to abut one another for enhanced block stackability, packaging and shipping.
It should be understood that the vertical and faceted surfaces of faces 112 and 114 and first side surface 116 may have any desired number, size, shape or dimension as desired, with further examples being seen in
Blocks of the present invention may also have a top surface (alone or together with any or all of the front face, rear face and side faces) that has been molded with recesses or indentations with faceted surfaces as discussed above, an example of which can be seen on the top surface of block 400a in
Optionally, the outermost surfaces of each or some of the side surfaces of the blocks of the present invention may be tapered planar contour. That is, for example, the surface area of the bottom of the block may be larger than the surface area of the top of the block.
Blocks 100 may be provided with a core, or passageway, not shown, preferably located generally at the center of the block. The core extends through the thickness of the block. The dimension of the core can be varied as desired. The block may also be provided with pin-receiving apertures and receiving channels. These apertures and receiving channels may be provided to use accept and retain pins to secure and align the blocks as desired.
In one desirable embodiment, all the faceted surfaces of each recess or indentation in each face of the block may have a drafting contour or drafting angle relative to the formation of each individual surface in a mold cavity, as known in the art, such that a block formed in a mold cavity may be readily stripped from the mold cavity. The mold cavity may have fixed or static side walls with no undercutting, and may have each geometric projection that forms the recess or indentation in the face of the block fixedly attached to each or any side wall of the mold cavity as desired. This manufacturing method allows for faster and lower cost block production. Additionally, the drafting contours/angles of the faceted surfaces result in the top surface of the block, relative to the formation in the mold cavity, having a smaller surface area than the bottom surface of the formed block. It should be understood however, that this is not limiting, and depending upon the application the mold cavity could utilize removable liners with movable mold cavity side walls.
Additionally/alternatively the top surface of the block could be formed with a false joint that may extend across the top surface. The false joint of the top surface could extend from the false joint positioned on one of the sides of the wall block (the sides of the block including the front, rear and side surfaces) to a false joint on an opposing side. The false joint could also extend across the top surface from one of the sides to an adjacent side such that the false joint of the top surface is angled. The blocks shown in
The one or more geometric or prismatic recesses or indentations on each face of the block create shadowing effects along the faces of the block that enhance the visual aesthetic of the block. Additionally, the differing variations of recesses or indentations and the faceted surfaces that form each individual recess or indentation in the surfaces of the blocks used in the assembly of a wall or other structure give the visually exposed surfaces of the structure more visual movement, irregularity and randomness. Irregularity or irregular appearance in this context may be defined to mean that a regular geometric pattern is not readily apparent either in the individual face of the block or the visually exposed surface of a structure even though surfaces of the block, block faces and overall structure may consist of straight line segments or regular geometric curved segments. Further, the irregularity or randomness of the visually exposed surfaces of the structure may be enhanced by assembling the structure with multiple embodiments of blocks having different variations of indentations and recesses and with some of the blocks having the top surface of the block (as manufactured in a mold) facing upward and with some of the blocks with the bottom surface of the block (as manufactured in a mold) facing upward. Also, assembling the structure such that any of the front face, rear face or side faces may form any part of the visually exposed surfaces of the structure, whether the block be top side up, bottom side up and/or both will further enhance the irregularity and randomness of the visually exposed surface. The more randomness/irregularity when assembling/positioning the blocks in the structure also helps to create more randomness and irregularity in the visually exposed surfaces of the wall.
As can be seen in
Although particular embodiments have been disclosed herein in detail, this has been done for purposes of illustration only, and is not intended to be limiting with respect to the scope of the appended claims, which follow. In particular, it is contemplated by the inventor that various substitutions, alterations, and modifications may be made to the invention without departing from the spirit and scope of the invention as defined by the claims. For instance, the choice of materials or variations in the shape or angles at which some of the surfaces intersect are believed to be a matter of routine for a person of ordinary skill in the art with knowledge of the embodiments disclosed herein.
Number | Date | Country | |
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62640764 | Mar 2018 | US |