EP0249478A2 - Wall fastening method and apparatus - Google Patents
Wall fastening method and apparatus Download PDFInfo
- Publication number
- EP0249478A2 EP0249478A2 EP87305176A EP87305176A EP0249478A2 EP 0249478 A2 EP0249478 A2 EP 0249478A2 EP 87305176 A EP87305176 A EP 87305176A EP 87305176 A EP87305176 A EP 87305176A EP 0249478 A2 EP0249478 A2 EP 0249478A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- tie
- carrying
- positioning member
- courses
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 9
- 239000011449 brick Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 8
- 239000011469 building brick Substances 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4178—Masonry wall ties
Definitions
- the present invention relates to a wall fastening system to facilitate the building of a second wall onto a first or existing wall.
- Wall tie devices comprising an elongate metal section adapted for vertical securement eg. by wall screws to an existing wall and the metal section includes at least one side flange facilitating alignment of a second wall.
- UK Patent 1604941 describes such a wall tie device. Tie elements are carried by the metal section so as to be located between brick (or block) courses of the second wall whereby suitable keying can be provided between the walls. Since irregularities can arise in the position of the brick courses of the second wall, provision for some vertical adjustability of the tie elements has been included in the elongate section.
- published UK Patent Applications 2154258A and 2154260A describe double-limbed tie elements with the limbs slidably received in vertical slots in the elongate section.
- wall fastening apparatus to facilitate the building of a second wall onto a first existing wall
- said apparatus comprising upright attachment means adapted for securement to said first wall, and carrying means on said attachment means for wall ties whereby each wall tie can be positioned between two successive brick or block courses of said second wall, characterised in that there are provided a plurality of separate individual wall-tie carrying members for wall ties, and an elongate positioning member adapted for securement in an upright position on said first wall and including retaining means to receive a locating member on each wall-tie carrying member whereby the wall-tie carrying members can be positioned on said positioning member at desired vertical spacings relative to each other.
- the elongate positioning member comprises a rail device, and the carrying members are preferably slidably movable on the elongate positioning member.
- each tie element can comprise an L-shaped member, the carrying members including slot means to receive a first limb of the L-shaped tie element while the other limb of the element is located between courses of the second wall.
- the carrying members are slidably retained on the elongate positioning member by slot-and-flange means.
- said other limb of the L-shaped tie element is of flanged form.
- the slot means of the carrying member receives the tie elements first limb so that the limb is positioned over a hole on the member, said hole serving for through-passage of a screw to secure the carrying member to said existing wall.
- a wall fastening system 1 is shown facilitating the building of a second wall 3 onto an existing wall 2, and (as shown in Fig. 1) particularly for a second wall 3 extending at right angles to the first.
- the wall fastening system 1 comprises an elongate positioning member 4 providing an edge flange 5, a series of wall-tie carrying members 6 (only one shown in Fig. 2) which are fitted on the elongate member 4, and wall tie elements 7 carried by the carrying members 6.
- the parts of the system 1 are of metal plate construction, preferably of mild or stainless steel, and can be formed by metal stamping.
- the flange 5 of member 4 is bent over to form a slot 8 receiving a flange 9 of each carrying member 6; the elongate member 4 being fastened to the wall 2 by wall screws 10 passing through holes 11 on the member 4.
- Member 4 includes a reinforcing ridge 12.
- the carrying member 6 is of corrugated plate form and raised corrugations thereof provide apertured land portions 13 for wall screws (not shown) to secure the members 6 to the wall 2. Strap portions 14, 15 standing proud of lands 13 provide slots 16, 17 to receive the wall tie elements 7.
- Each element 7 is of L-shaped form and is stamped out so that the longer limb 18 has side flanges 19, while the shorter limb 20 of element 7 is received in slots 16, 17 so as to cover the recessed screw aperture 28 in land 13 (two elements 7 being provided per carrying member 6).
- the wall tie 7 is consequently firmly gripped between the land 13 and the strap portions 14, 15 such that any free (pivotal) movement of the tie 7 in the plane of the land 13 or in a plane perpendicular thereto can be substantially precluded.
- Tongue apertures 21 are present on each element 7 for through-passage of mortar cement thereby assisting the keying action.
- each carrying member 6 is movable into a locked condition on the elongate positioning member 4.
- the positioning member 4 can have a concave channel 25 while each carrying member 6 has a corresponding mating channel 26, the width W P of the channel 25 being slightly less than the width W C of the channel 26, so that the channel 25 can serve as a clip for the channel 26.
- Fig. 4 shows the position of initial fitting of a carrying member 6 onto the positioning member 4. In this position the member 6 is inclined relative to the member 4 with the flange 9 partially in the slot 8, and in this position the member 6 is capable of a sliding guided movement on the positioning member 4.
- a downward force F is applied to the member 6 to cause the channel 26 to clip into channel 25 as shown in Fig. 5, held by the side walls 25A, 25B of the channel 25.
- a further preferred feature is that the limb 18 of the tie element 7 is located slightly above the top edge of the relevant carrying member 6 and to achieve this requirement a stop element 27 is provided on the limb 20 of tie element 7 as shown in Fig. 6 and engages an outer edge 13A of the land 13 to limit downward movement of the tie element 7.
- a stop element 27 is provided on the limb 20 of tie element 7 as shown in Fig. 6 and engages an outer edge 13A of the land 13 to limit downward movement of the tie element 7.
- the elongate member positioning member 4 is firstly located in a vertical position on wall 2 eg. using a plumb line, and the member 4 is secured to the wall 2 by wall screws 10.
- the respective carrying member 6 is located in position as shown in Fig. 1 prior to building the course so that the limbs 18 of the elements 7 will be at the top level of the course (or slightly above) and the element 6 is secured in this position on wall 2 by means of fastening screws inserted through the screw apertures 28.
- Further carrying members 6 are fitted to the member 4 and screwed to the wall 2 to form a vertical array of members 6 with selected vertical spacings S1, S2 etc. and each member 6 carries tie elements 7 located between successive courses of the wall 3.
- the vertical array of members 6 can be fitted to the positioning member 4 at the desired vertical spacings S1, S2 etc. and secured to the wall 2 prior to the formation of the wall 3.
- the spacings S1 S2 etc would normally be uniform eg. 300 mm.
- the edge flange 5 serves to align the brick courses.
- the flange 9 located in slot 8 has sufficient width to prevent tilting of the element 6 so that the elements 6 will be set precisely normal to member 4 and hence horizontal.
- tie elements 7 are restrained from pivotting by slots 16, 17 and this provides satisfactory structural rigidity and hence improved keying between the walls 2, 3.
- the carrying members 6 are symmetrical about a horizontal (longitudinal) axis so that the members 6 suffice without alteration for left hand or right hand positioning of the elongate member 4, the flange 9 being placed at the left or right hand side simply by rotating the member 6.
- the flange 9 can be provided with a sideways directed tongue 9A to improve the securement of the flange 9 in the slot 8.
- the above wall fastening system of the present invention provides an infinite vertical adjustment of the wall tie elements 7 relative to the member 4 so that all irregularities in course levels can be compensated for.
- the wall tie elements are carried by separate carrying members rather than by a single integral elongate metal section as in previous systems and this enables substantial reduction in the amount of material required for the construction of the wall tie since the elongate member 4 can be relatively narrow.
- the specific and firm securement of each carrying member 6 to the wall 2 by means of the fastening screws give greatly improved strength to the fastening system in comparison to systems using a single integral elongate tie attachment member which may be secured to the base wall only at random positions.
- the present fastening system 1 can be conveniently used for the building of "second" walls having substantially different brick or block sizes since only the tie carrying members 6 need be substituted, all other items being common for all brick or block sizes.
- the length L of the element 6 determines the brick size to be catered for, specifically for brick (or block) widths in the range B1 to B2.
- the following sizes are indicated:
- the tie carrying member 6A shown in Fig. 7 will be preferred. As can be seen, element 6A is retained by only a single screw and only a single set of slots 16/17 is provided for a single tie element 7.
- the mounting of the tie elements 7 on the carrying members 6 could be achieved in some alternative manner.
- the tie element 7 could be provided with a downwardly projecting finger 29 at the upper end which clips over an extended portion of the land 13 as shown, one or both of the strap portions 14, 15 being dispensed with.
- tie elements 7 may be coupled to the carrying member 6 at or towards the bottom end thereof for example by means of a hook element 30 on the member 6 engaging a slot 31 on the element 7, as shown, and for this arrangement the tie element 7 could be symmetrical about a vertical axis with similar retainment means at each end of the element 7 for fitment to the positioning member 4 so that the elements 7 are still usable for left or right hand positioning of the member 4.
Abstract
Description
- The present invention relates to a wall fastening system to facilitate the building of a second wall onto a first or existing wall.
- Wall tie devices are known comprising an elongate metal section adapted for vertical securement eg. by wall screws to an existing wall and the metal section includes at least one side flange facilitating alignment of a second wall. UK Patent 1604941 describes such a wall tie device. Tie elements are carried by the metal section so as to be located between brick (or block) courses of the second wall whereby suitable keying can be provided between the walls. Since irregularities can arise in the position of the brick courses of the second wall, provision for some vertical adjustability of the tie elements has been included in the elongate section. For example published UK Patent Applications 2154258A and 2154260A describe double-limbed tie elements with the limbs slidably received in vertical slots in the elongate section.
- However, the previous adjustment provisions for the tie elements have not been completely adequate and/or have resulted in a tie mounting which has not been structually satisfactory. A further disadvantage of previous wall tie systems has been that they have not been economic in use of material and have been relatively heavy.
- It is an object of the present invention to obviate or mitigate these disadvantages.
- According to one aspect of the present invention there is provided a method of installing a wall fastening system on a first wall to facilitate the building of a second wall onto said first wall, said second wall being formed by courses of building bricks or blocks with cementing material between said courses, said method comprising fixing upright attachment means for wall tie elements to said first wall and mounting said wall tie elements on the attachment means so that each tie element is located between two successive courses of the second wall, characterised in that a plurality of separate individual wall tie attachment members are provided, in that an elongate positioning member is located upright on the first wall, and in that said wall tie attachment members are positioned on said elongate positioning member at desired vertical spacings relative to each other and secured to said first wall at said spacings.
- According to another aspect of the present invention there is provided wall fastening apparatus to facilitate the building of a second wall onto a first existing wall, said apparatus comprising upright attachment means adapted for securement to said first wall, and carrying means on said attachment means for wall ties whereby each wall tie can be positioned between two successive brick or block courses of said second wall, characterised in that there are provided a plurality of separate individual wall-tie carrying members for wall ties, and an elongate positioning member adapted for securement in an upright position on said first wall and including retaining means to receive a locating member on each wall-tie carrying member whereby the wall-tie carrying members can be positioned on said positioning member at desired vertical spacings relative to each other.
- Preferably the elongate positioning member comprises a rail device, and the carrying members are preferably slidably movable on the elongate positioning member.
- Preferably the carrying members are adapted for securement to the existing wall. Each tie element can comprise an L-shaped member, the carrying members including slot means to receive a first limb of the L-shaped tie element while the other limb of the element is located between courses of the second wall.
- Preferably the carrying members are slidably retained on the elongate positioning member by slot-and-flange means.
- Preferably said other limb of the L-shaped tie element is of flanged form. In a preferred embodiment the slot means of the carrying member receives the tie elements first limb so that the limb is positioned over a hole on the member, said hole serving for through-passage of a screw to secure the carrying member to said existing wall.
- Embodiments of the present invention will now be described by way of example with reference to the accompanying drawings wherein:-
- Fig. 1 shows a schematic side view of the construction of a second wall onto an existing wall using a wall fastening system in accordance with the present invention;
- Fig. 2 shows an "exploded" isometric view of the wall fastening system shown in Fig. 1;
- Fig. 3 is a plan view of the fastening system of Fig. 2;
- Fig. 4 shows a detail of the fastening system in side view and embodying clip means for retainment of parts of the system;
- Fig. 5 shows a similar view to Fig. 4 but in the locked condition with the system parts clipped together;
- Fig. 6 shows a sectional end view of the system through section X-X in Fig. 3 but including a modification.
- Fig. 7 shows a front view of a modified tie carrying member in accordance with the present invention; and
- Fig. 8 shows a sectional end view (corresponding to M-M of Fig. 3) of a further modified form of the wall fastening system.
- Referring to Figs. 1 to 3 of the drawings, a wall fastening system 1 is shown facilitating the building of a
second wall 3 onto an existing wall 2, and (as shown in Fig. 1) particularly for asecond wall 3 extending at right angles to the first. The wall fastening system 1 comprises anelongate positioning member 4 providing anedge flange 5, a series of wall-tie carrying members 6 (only one shown in Fig. 2) which are fitted on theelongate member 4, andwall tie elements 7 carried by the carryingmembers 6. The parts of the system 1 are of metal plate construction, preferably of mild or stainless steel, and can be formed by metal stamping. - The
flange 5 ofmember 4 is bent over to form a slot 8 receiving aflange 9 of each carryingmember 6; theelongate member 4 being fastened to the wall 2 bywall screws 10 passing throughholes 11 on themember 4.Member 4 includes a reinforcingridge 12. The carryingmember 6 is of corrugated plate form and raised corrugations thereof provide aperturedland portions 13 for wall screws (not shown) to secure themembers 6 to the wall 2.Strap portions lands 13 provideslots wall tie elements 7. Eachelement 7 is of L-shaped form and is stamped out so that thelonger limb 18 hasside flanges 19, while theshorter limb 20 ofelement 7 is received inslots recessed screw aperture 28 in land 13 (twoelements 7 being provided per carrying member 6). Thewall tie 7 is consequently firmly gripped between theland 13 and thestrap portions tie 7 in the plane of theland 13 or in a plane perpendicular thereto can be substantially precluded.Tongue apertures 21 are present on eachelement 7 for through-passage of mortar cement thereby assisting the keying action. - Further it is preferable that each carrying
member 6 is movable into a locked condition on theelongate positioning member 4. Thus, referring to Figs. 4 and 5, for this end thepositioning member 4 can have aconcave channel 25 while each carryingmember 6 has acorresponding mating channel 26, the width WP of thechannel 25 being slightly less than the width WC of thechannel 26, so that thechannel 25 can serve as a clip for thechannel 26. Fig. 4 shows the position of initial fitting of a carryingmember 6 onto thepositioning member 4. In this position themember 6 is inclined relative to themember 4 with theflange 9 partially in the slot 8, and in this position themember 6 is capable of a sliding guided movement on thepositioning member 4. To lock themember 6 in thepositiong member 4, a downward force F is applied to themember 6 to cause thechannel 26 to clip intochannel 25 as shown in Fig. 5, held by theside walls channel 25. - A further preferred feature is that the
limb 18 of thetie element 7 is located slightly above the top edge of therelevant carrying member 6 and to achieve this requirement astop element 27 is provided on thelimb 20 oftie element 7 as shown in Fig. 6 and engages anouter edge 13A of theland 13 to limit downward movement of thetie element 7. With this arrangement, the top of a brick or block can be positioned level with the top edge of the carryingmember 6 as shown so that a small space is present between the bricks and thelimb 18 for cement ormortar 3A bonding the brick courses ofwall 3. - In the constructions of the
second wall 3 onto existing wall 2, the elongate member positioningmember 4 is firstly located in a vertical position on wall 2 eg. using a plumb line, and themember 4 is secured to the wall 2 bywall screws 10. For the formation of the various courses (ie. A, B, C of Fig. 1) of thesecond wall 3, the respective carryingmember 6 is located in position as shown in Fig. 1 prior to building the course so that thelimbs 18 of theelements 7 will be at the top level of the course (or slightly above) and theelement 6 is secured in this position on wall 2 by means of fastening screws inserted through thescrew apertures 28. Further carryingmembers 6 are fitted to themember 4 and screwed to the wall 2 to form a vertical array ofmembers 6 with selected vertical spacings S₁, S₂ etc. and eachmember 6 carriestie elements 7 located between successive courses of thewall 3. - Alternatively, the vertical array of
members 6 can be fitted to thepositioning member 4 at the desired vertical spacings S₁, S₂ etc. and secured to the wall 2 prior to the formation of thewall 3. The spacings S₁ S₂ etc would normally be uniform eg. 300 mm. As seen in Fig. 3, theedge flange 5 serves to align the brick courses. Theflange 9 located in slot 8 has sufficient width to prevent tilting of theelement 6 so that theelements 6 will be set precisely normal tomember 4 and hence horizontal. Similarlytie elements 7 are restrained from pivotting byslots walls 2, 3. As will be noted the carryingmembers 6 are symmetrical about a horizontal (longitudinal) axis so that themembers 6 suffice without alteration for left hand or right hand positioning of theelongate member 4, theflange 9 being placed at the left or right hand side simply by rotating themember 6. Theflange 9 can be provided with a sideways directedtongue 9A to improve the securement of theflange 9 in the slot 8. - As will be appreciated, the above wall fastening system of the present invention provides an infinite vertical adjustment of the
wall tie elements 7 relative to themember 4 so that all irregularities in course levels can be compensated for. Further in the present invention, the wall tie elements are carried by separate carrying members rather than by a single integral elongate metal section as in previous systems and this enables substantial reduction in the amount of material required for the construction of the wall tie since theelongate member 4 can be relatively narrow. Additionally, the specific and firm securement of each carryingmember 6 to the wall 2 by means of the fastening screws give greatly improved strength to the fastening system in comparison to systems using a single integral elongate tie attachment member which may be secured to the base wall only at random positions. - The present fastening system 1 can be conveniently used for the building of "second" walls having substantially different brick or block sizes since only the
tie carrying members 6 need be substituted, all other items being common for all brick or block sizes. -
- Where the brick or wall width is to be relatively small ie. less than 100 mm, the
tie carrying member 6A shown in Fig. 7 will be preferred. As can be seen,element 6A is retained by only a single screw and only a single set ofslots 16/17 is provided for asingle tie element 7. - Modifications are of course possible. Thus the mounting of the
tie elements 7 on the carryingmembers 6 could be achieved in some alternative manner. For example, referring to Fig. 8, thetie element 7 could be provided with a downwardly projectingfinger 29 at the upper end which clips over an extended portion of theland 13 as shown, one or both of thestrap portions tie elements 7 to the carryingmember 6 at or towards the bottom end thereof for example by means of ahook element 30 on themember 6 engaging aslot 31 on theelement 7, as shown, and for this arrangement thetie element 7 could be symmetrical about a vertical axis with similar retainment means at each end of theelement 7 for fitment to thepositioning member 4 so that theelements 7 are still usable for left or right hand positioning of themember 4.
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8614185 | 1986-06-11 | ||
GB868614185A GB8614185D0 (en) | 1986-06-11 | 1986-06-11 | Wall tie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0249478A2 true EP0249478A2 (en) | 1987-12-16 |
EP0249478A3 EP0249478A3 (en) | 1988-07-20 |
Family
ID=10599286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87305176A Withdrawn EP0249478A3 (en) | 1986-06-11 | 1987-06-11 | Wall fastening method and apparatus |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0249478A3 (en) |
GB (2) | GB8614185D0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2289906A (en) * | 1994-06-02 | 1995-12-06 | Ancon Clark Ltd | Connecting posts (e.g.windposts) to walls |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT403493B (en) * | 1992-08-27 | 1998-02-25 | Rockwool Handelsgesellschaft M | Connecting device |
GB2287488A (en) * | 1994-03-14 | 1995-09-20 | Mitek Inc | Restraint strap for use in buildings |
US5735087A (en) * | 1996-07-19 | 1998-04-07 | Mitek Holdings, Inc. | Truss with integral hold down strap |
US6219975B1 (en) | 1998-05-15 | 2001-04-24 | Mitek Holdings, Inc. | Truss with integral hold down strap |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1575501A (en) * | 1976-11-05 | 1980-09-24 | Ellidge A | Tie means for brick walls |
GB2161217A (en) * | 1984-07-03 | 1986-01-08 | Radmark Engineering Systems Li | Air blowing unit |
US4598518A (en) * | 1984-11-01 | 1986-07-08 | Hohmann Enterprises, Inc. | Pronged veneer anchor and dry wall construction system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154260B (en) * | 1984-03-15 | 1987-09-16 | Donald Furr | Wall tie device |
GB2161844B (en) * | 1984-07-11 | 1988-02-10 | Cd Truline Ltd | Wall tie |
GB2162216B (en) * | 1984-07-11 | 1988-09-28 | Cd Truline Ltd | Wall tying method and apparatus |
-
1986
- 1986-06-11 GB GB868614185A patent/GB8614185D0/en active Pending
-
1987
- 1987-06-11 GB GB8713626A patent/GB2191520B/en not_active Expired - Fee Related
- 1987-06-11 EP EP87305176A patent/EP0249478A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1575501A (en) * | 1976-11-05 | 1980-09-24 | Ellidge A | Tie means for brick walls |
GB2161217A (en) * | 1984-07-03 | 1986-01-08 | Radmark Engineering Systems Li | Air blowing unit |
US4598518A (en) * | 1984-11-01 | 1986-07-08 | Hohmann Enterprises, Inc. | Pronged veneer anchor and dry wall construction system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2289906A (en) * | 1994-06-02 | 1995-12-06 | Ancon Clark Ltd | Connecting posts (e.g.windposts) to walls |
GB2289906B (en) * | 1994-06-02 | 1998-07-15 | Ancon Clark Ltd | Structural Windpost Assembly |
Also Published As
Publication number | Publication date |
---|---|
GB2191520B (en) | 1990-02-21 |
GB8713626D0 (en) | 1987-07-15 |
GB8614185D0 (en) | 1986-07-16 |
EP0249478A3 (en) | 1988-07-20 |
GB2191520A (en) | 1987-12-16 |
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Inventor name: LAMONT, JOHNC + T METALS Inventor name: CUSICK, DAVID KENNETH |