EP2430255A1 - A block - Google Patents
A blockInfo
- Publication number
- EP2430255A1 EP2430255A1 EP09844561A EP09844561A EP2430255A1 EP 2430255 A1 EP2430255 A1 EP 2430255A1 EP 09844561 A EP09844561 A EP 09844561A EP 09844561 A EP09844561 A EP 09844561A EP 2430255 A1 EP2430255 A1 EP 2430255A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- building block
- building blocks
- building
- blocks
- bottom sides
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
- E04B2/16—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
- E04B2/22—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having a general shape differing from that of a parallelepiped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0202—Details of connections
- E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
- E04B2002/0215—Non-undercut connections, e.g. tongue and groove connections with separate protrusions
- E04B2002/0217—Non-undercut connections, e.g. tongue and groove connections with separate protrusions of prismatic shape
Definitions
- This invention relates to a building block. Specifically, the invention relates to a building block for use in an interlocking block building system for constructing, in particular, low-cost housing structures.
- Interlocking building block systems for constructing houses, retaining walls and other load-bearing wall structures are well known.
- Interlocking block systems comprise blocks having complementary formations on top and bottom surfaces for engaging with like blocks in a stacked arrangement.
- interlocking block systems are plastered post construction.
- a difficulty associated with interlocking block systems is that very little or no mortar is used between blocks of adjacent courses.
- a reason for this is that the top and bottom sides of interlocking blocks define less surface area for the application of mortar in comparison to conventional non-interlocking building blocks which have planar top and bottom surfaces. Accordingly, in interlocking block systems there is relatively more movement of the blocks of adjacent courses relative to one another than in non-interlocking block systems. This movement between courses of blocks often causes the layer of plaster to weaken and crack adjacent the join between blocks in adjacent courses.
- the building block of the invention seeks to ameliorate difficulties associated with known interlocking building block systems.
- a building block comprising an opposing pair of sides and an opposing pair of ends and having operative top and bottom sides, the building block defining a longitudinal axis between the ends and a number of complementary locating formations on the top and bottom sides for locating the building block relative to adjacent similar building blocks in adjacent courses of a wall constructed using the building blocks, the building block being characterised in that each side comprises two angled faces which are disposed at an oblique angle relative to each other and wherein the faces taper in a generally outwards direction and converge at a midsection defined approximately midway between the top and bottom sides to a form a longitudinally extending seam on exterior surfaces of the sides such that a recess is defined between the seams of building blocks of adjacent courses in a wall constructed using the building blocks, thereby permitting a relatively thicker layer of plaster to be applied to fill the recesses and consequently reinforcing the plaster against cracking in the region of a join between the building blocks in one course and the building blocks in
- the sides and ends may define side walls and end walls having interior surfaces and exterior surfaces.
- the building block may have a hollow central region wherein the interior surfaces of the side walls and end walls define a central open-ended passage extending through the block and wherein the passage may be divided into two separate adjoining passages by a centrally positioned dividing wall having interior surfaces.
- the interior surfaces of the side walls, end walls and dividing wall may be tapered inwardly from the open end of the passages, converging at a general midsection approximately midway between the top and bottom sides.
- the exterior surface of at least one of the end walls may comprise two angled faces which are disposed at an oblique angle relative to each other and wherein the faces taper in a generally outwards direction and converge at a midsection defined approximately midway between the top and bottom sides to form a longitudinally extending seam on the exterior surface.
- the locating formations may comprise a number of projections defined on the top side and a number of complementary grooves defined in the bottom side of the building block.
- the projections may be smaller than the grooves in order to define a gap between the projection and the groove in an engaged condition of blocks of adjacent courses.
- the gap may be approximately two millimetres wide.
- the passages may define radiused internal corners.
- Figure 1 is an isometric view of the building block according to the invention.
- Figure 2 is a top plan view of the building block of Figure 1 ;
- Figure 3 is a bottom plan view of the building block of Figure 1 ;
- Figure 4 is a sectional side view of the building block of Figure 1 ;
- Figure 5 shows a partially constructed wall using a number of the building blocks according to Figure 1 , in a stacked arrangement
- Figure 6 is a side view showing the recess defined between the seams of similar building blocks of adjacent courses in a stacked arrangement.
- a building block in accordance with the invention is designated generally by the reference numeral 10.
- the block is of the type that may generally be referred to as an interlocking block.
- the block is generally rectangular comprising opposing sides 12 and opposing ends 14 and including operatively top 16 and bottom sides.
- the block is generally hollow in the central region with the sides and ends defining outer peripheral side walls and end walls having interior and exterior surfaces and wherein the interior surfaces 20 of the side walls and end walls define a central open-ended passage which extends through the body of the block.
- the central passage is divided into two equal adjoining passages by a central dividing wall 22 having interior surfaces.
- the block defines a longitudinal axis extending between its ends.
- Each of the side walls 12 is comprised of two faces 24 which are disposed at an oblique angle relative to each other.
- the faces taper at an angle of approximately seven degrees in a generally outwards direction and converge at a midsection defined approximately midway between the top and bottom sides to define a longitudinally extending seam 26 on the exterior surfaces of the side walls.
- at least one of the end walls is also subdivided into similar tapering faces 28.
- the blocks in a course are laid such that the flat end of one block is located adjacent the tapered end of another.
- the effect of the tapered end wall is to create a gap between adjacent blocks in a course of building blocks into which mortar or other suitable adhesive substance may be inserted.
- the inventor envisages that the gap created by placing one flat end adjacent to one tapered provides manoeuvrability and end facilitates alignment of the blocks during the laying process.
- the effect of the tapering side walls is to define a recess 30 between the seams of blocks in adjacent courses of a wall constructed using the building blocks, as it shown in Figure 6.
- Walls constructed using interlocking building blocks are usually plastered over post construction.
- little or no mortar is applied between adjacent courses of blocks. Accordingly, the stacked blocks tend to move relative to each other which, over time, results in the cracking of the plaster adjacent the join between blocks in adjacent courses.
- the recesses defined between adjacent courses of building blocks permit a relatively thicker layer of plaster being applied over these regions. Accordingly, the plaster is rendered stronger and less likely to crack in these usually weakened regions. It is further the inventor's view that the tapering of the side walls of the block enhances the load bearing capacity of the block by distributing weight carried by the block over a wider angle.
- the building block has a number of projections 32 extending from its top side. There are preferably two spaced apart projections extending from the top side of each side wall, one from the top side of each end wall and one from the top side of the central dividing wall. There are a number of corresponding grooves 34 defined in the bottom side of the block that are positioned directly opposite the projections of the top side. As illustrated in Figure 5, the grooves are configured to engage the projections of a similar block in a stacked arrangement of the blocks during the construction of a wall or other structure.
- the projections are generally rectangular formations having a top side and inwardly sloped side walls 36.
- the projections and corresponding grooves are the same shape, the projections are slightly smaller than the grooves so that a marginal gap 38 of approximately two millimetres is defined between the projection and groove in an engaged condition thereof.
- the gap provides a space for the insertion of a paste or other adhesive substance between stacked blocks in adjacent courses during the building process.
- the top and bottom sides of the blocks define less surface area for the application of mortar in comparison to conventional non-interlocking building blocks, which generally have planar top and bottom sides.
- the blocks are adapted to locate each other so snugly that, as a result, there is no space for the insertion of any additional adhesive substance between stacked blocks of adjacent courses.
- the gaps defined between the locating projections and grooves of interlocked blocks permits the application of a relatively thin layer of mortar between the blocks of adjacent courses, thereby enhancing the stability of a wall constructed using the building blocks.
- the top and bottom sides of the building block would be dipped into a trap of mortar and then stacked accordingly.
- a further feature of the invention provides for the interior surfaces 20 of the walls defining the passages to taper inwardly from the open ends of each of the passages and to converge approximately midway between the top and bottom sides.
- the walls are substantially thicker than in the case of conventional interlocking building blocks.
- the side walls of the blocks are thickest approximately midway between the top and bottom sides of the block, which, according to the inventor, is where they tend to crack. Accordingly, these thicker blocks have a higher load bearing capacity than traditional interlocking blocks.
- the passages defined by the walls have radiused corners 42 which, it is envisaged by the inventor, further enhances the structural integrity of the block.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finishing Walls (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200903310 | 2009-05-13 | ||
PCT/IB2009/055876 WO2010131083A1 (en) | 2009-05-13 | 2009-12-21 | A block |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2430255A1 true EP2430255A1 (en) | 2012-03-21 |
EP2430255A4 EP2430255A4 (en) | 2012-10-17 |
Family
ID=43084670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09844561A Withdrawn EP2430255A4 (en) | 2009-05-13 | 2009-12-21 | A block |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2430255A4 (en) |
WO (1) | WO2010131083A1 (en) |
ZA (1) | ZA201108798B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6382263B2 (en) * | 2016-07-22 | 2018-08-29 | 太陽エコブロックス株式会社 | Concrete block |
WO2020107300A1 (en) * | 2018-11-29 | 2020-06-04 | 陈韦丞 | Brick for post-embedding of rebars |
WO2020107313A1 (en) * | 2018-11-29 | 2020-06-04 | 陈韦丞 | Combination wall formed by reinforced bricks |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE513766A (en) * | ||||
EP0021449A1 (en) * | 1979-06-29 | 1981-01-07 | QUADIE-Bausysteme GmbH | Construction such as a retaining wall or the like |
EP0039372A1 (en) * | 1980-05-03 | 1981-11-11 | Gimmler, Luise Maria, Dipl.-Betriebswirt | Shaped brick for a talus |
EP0487345A2 (en) * | 1990-11-22 | 1992-05-27 | Stephanus Petrus Naude | Building block |
US5528873A (en) * | 1994-02-01 | 1996-06-25 | Correia; Horacio | Block for construction retaining wall |
DE19831466A1 (en) * | 1998-07-14 | 2000-01-20 | Rolf Scheiwiller | Brick wall with mortar-free fixing uses push-in dowels inserted between two superposed bricks and having cams to stop against recesses and prevent bricks from shifting |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US971159A (en) * | 1909-04-23 | 1910-09-27 | George Middlebrook | Brick wall and the like. |
US2241079A (en) | 1938-09-29 | 1941-05-06 | Whitten William Henry | Building brick |
GB803549A (en) * | 1955-03-01 | 1958-10-29 | Henry Foster And Company Ltd | Improvements in and relating to building bricks |
WO1996035027A1 (en) * | 1995-05-03 | 1996-11-07 | Boral Hollostone Masonry (Sa) Pty. Ltd. | Building block with planar wall surface bounded by recess |
-
2009
- 2009-12-21 EP EP09844561A patent/EP2430255A4/en not_active Withdrawn
- 2009-12-21 WO PCT/IB2009/055876 patent/WO2010131083A1/en active Application Filing
-
2011
- 2011-11-30 ZA ZA2011/08798A patent/ZA201108798B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE513766A (en) * | ||||
EP0021449A1 (en) * | 1979-06-29 | 1981-01-07 | QUADIE-Bausysteme GmbH | Construction such as a retaining wall or the like |
EP0039372A1 (en) * | 1980-05-03 | 1981-11-11 | Gimmler, Luise Maria, Dipl.-Betriebswirt | Shaped brick for a talus |
EP0487345A2 (en) * | 1990-11-22 | 1992-05-27 | Stephanus Petrus Naude | Building block |
US5528873A (en) * | 1994-02-01 | 1996-06-25 | Correia; Horacio | Block for construction retaining wall |
DE19831466A1 (en) * | 1998-07-14 | 2000-01-20 | Rolf Scheiwiller | Brick wall with mortar-free fixing uses push-in dowels inserted between two superposed bricks and having cams to stop against recesses and prevent bricks from shifting |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010131083A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2430255A4 (en) | 2012-10-17 |
ZA201108798B (en) | 2012-08-29 |
WO2010131083A1 (en) | 2010-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20111208 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20120919 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E04B 2/02 20060101ALI20120913BHEP Ipc: E04B 2/22 20060101ALI20120913BHEP Ipc: E04B 2/16 20060101ALI20120913BHEP Ipc: E04C 1/00 20060101AFI20120913BHEP |
|
17Q | First examination report despatched |
Effective date: 20130521 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20150701 |