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GB2509494A - Expansion bolt - Google Patents

Expansion bolt Download PDF

Info

Publication number
GB2509494A
GB2509494A GB201300011A GB201300011A GB2509494A GB 2509494 A GB2509494 A GB 2509494A GB 201300011 A GB201300011 A GB 201300011A GB 201300011 A GB201300011 A GB 201300011A GB 2509494 A GB2509494 A GB 2509494A
Authority
GB
United Kingdom
Prior art keywords
shank
wall
bolt
insulation
rubber sleeve
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Withdrawn
Application number
GB201300011A
Other versions
GB201300011D0 (en
Inventor
David Southey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB201300011A priority Critical patent/GB2509494A/en
Publication of GB201300011D0 publication Critical patent/GB201300011D0/en
Publication of GB2509494A publication Critical patent/GB2509494A/en
Withdrawn legal-status Critical Current

Links

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
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7629—Details of the mechanical connection of the insulation to the wall
    • E04B1/7633—Dowels with enlarged insulation retaining head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/061—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve of the buckling type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Building Environments (AREA)

Abstract

An expansion bolt for attaching insulation cladding to a building comprises threaded shank. A plastics sleeve and a rubber sleeve surround a portion of the shank, the sleeves being arranged between two nuts which threadedly engage the shank. Turning of the shank, in use, causes the nuts to rotate and move axially along the shaft to cause the rubber sleeve to compress axially and thereby expand radially.

Description

Page -1 Insulation Bolt The Insulation Bolt is used to attach wall insulation cladding to a building without compromising its insulation properties.
Increasingly secondary wall insulation is being used to clad the outside of buildings. This is to provide added thermal protection and is generally used where cavity insulation is not possible. The process involves attaching sheets of metal or plastic material to the outside of an existing building, with a layer of insulation between it and the existing external wall. Currently this is done by drilling through the external insulation sheet and into the wall, the sheet is then attached using metal anchor bolts, or wall plugs and screws. However, an increasing problem is that this method of application often causes either cracks in the surface of the wall, or deforms the external cladding as the bolt draws tight, leaving gaps between the bolt or screw and the external cladding. This leads to a loss of thermal protection around these areas, which can be demonstrated with thermal imaging cameras.
The Insulation Bolt overcomes this problem by providing a strong but structurally gentle anchor in the wall and in addition this fastening solution does not cause the head of the bolt to be drawn into the wall any further than the initial bolt placement, thereby maintaining the thermal integrity of the cladding.
The Insulation Bolt is installed in the following way: 1) A hole is drilled through the external cladding and insulation, and into the wall 2) The bolt is fully inserted into this hole by hand 3) A standard screw driver is then used to turn the bolt, which causes the rubber sleeve to be compressed and materially engages with the wall The engagement mechanism works by the lateral expansion of the rubber sleeve through its longitudinal compression by two counter-threaded nuts and a plastic sleeve as the bolt is turned with a screw driver (Fig. 1).
Since the rubber sleeve expands laterally it does not draw the bolt towards the wall, hence it does not deform the external cladding, and thereby does not compromise the insulation. Also, since the rubber sleeve expands gradually and radially, and moulds around any deformities in the wall, it does not cause excess radial pressure in the wall so preventing cracking and shattering of the wall material.
GB201300011A 2013-01-02 2013-01-02 Expansion bolt Withdrawn GB2509494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201300011A GB2509494A (en) 2013-01-02 2013-01-02 Expansion bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201300011A GB2509494A (en) 2013-01-02 2013-01-02 Expansion bolt

Publications (2)

Publication Number Publication Date
GB201300011D0 GB201300011D0 (en) 2013-02-13
GB2509494A true GB2509494A (en) 2014-07-09

Family

ID=47716334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201300011A Withdrawn GB2509494A (en) 2013-01-02 2013-01-02 Expansion bolt

Country Status (1)

Country Link
GB (1) GB2509494A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2495455A2 (en) * 2011-03-01 2012-09-05 fischerwerke GmbH & Co. KG Fastening element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2495455A2 (en) * 2011-03-01 2012-09-05 fischerwerke GmbH & Co. KG Fastening element

Also Published As

Publication number Publication date
GB201300011D0 (en) 2013-02-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)