EP0340927A1 - Insert for a channel section member - Google Patents
Insert for a channel section member Download PDFInfo
- Publication number
- EP0340927A1 EP0340927A1 EP89303659A EP89303659A EP0340927A1 EP 0340927 A1 EP0340927 A1 EP 0340927A1 EP 89303659 A EP89303659 A EP 89303659A EP 89303659 A EP89303659 A EP 89303659A EP 0340927 A1 EP0340927 A1 EP 0340927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- elongate
- channel
- section member
- base
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920006327 polystyrene foam Polymers 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims 1
- 239000004794 expanded polystyrene Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 239000006260 foam Substances 0.000 description 6
- 238000009416 shuttering Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
-
- 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
- E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
Definitions
- the present invention relates to inserts for a channel section member, and in particular, but not exclusively, to inserts which are only temporarily inserted in a channel section member.
- a frame work or support structure which is adapted to act as support for various structures, such as cable racking to carry cables, suspended ceilings or modular floors.
- frameworks or support structures rest on a solid floor or are suspended from a secure overhead point, such as a roof beam.
- the frame members which are set into concrete are channel section members into which other elements of the framework or support structure are to be fitted at a later time.
- such channel section members are provided with elongate inserts, often constructed of expanded polystyrene or polyurethane foam. Frequently, this is done merely by pressing in several lengths of the foam into the open face of the channel-section member and upon setting of the concrete the polystyrene foam may then be removed.
- the above-described polystyrene foam inserts are not particularly suitable for channel-section members having two opposed, overhanging elongate lips onto which other frame members are to be secured at a later date. If the foam insert is to be pressed into the open face of the channel section member, then its width will be equal to that of the aperture between the lips in the open face, and in particular, the insert will not extend into that region of the interior of the channel-section member underneath the elongate lips. Thus, it often happens that concrete finds its way into these voids, fouling the securing surfaces of the elongate lips resulting in poor securing of other framework members to the member attached to the wall.
- One way around the above problem is to provide an insert whose cross section is shaped complementarily to that of the channel-section member, such that the voids previously left under the overhanging lips is filled. In order to insert the inserts, it is merely necessary slide one or more of them longitudinally along the channel-section member to be secured.
- Such a shaped insert works very well to keep concrete away from the securing surfaces of the overhanging lips of the channel-section member.
- the ends of the frame member are normally encased in concrete, so that it is not possible to slide the inserts out longitudinally.
- an elongate insert for insertion into an elongate, open, channel-section member having at least one elongate lip overhanging its base comprises a first elongate portion adapted to be received by the open portion of the channel-section member and a second elongate portion, attached to the first elongate portion, adapted to be received in that portion of the channel section member beneath the overhanging lip, the first and second portions being separated by an elongate slot which extends past the lip towards the base of the channel-section member.
- Such an insert may be slid into a lipped, channel-section member and fills substantially the whole of the interior of the channel-section member.
- the channel-section member may then be set into concrete, and upon setting of the concrete the insert may be easily removed by slitting it along the or each elongate slot to remove that portion of the insert in the open portion of the channel-section member.
- the or each remaining portion of the insert positioned beneath the or each lip may then be easily pulled out.
- the or each elongate slot separating the first and second portions extends to a point adjacent to the base of the insert.
- an elongate channel-section member 10 comprises a flat planar base 12 and two parallel, opposed side walls 14, 16 extending substantially perpendicularly to the plane of the base 12, the edges formed by the conjunction of the base 12 and the side walls 14, 16 being rounded.
- the upper ends of the side walls 14, 16 are turned back upon themselves through 180° to form two, opposed, parallel, inwardly-directed longitudinal lips 18, 20, which extend along the whole of the channel-section member.
- the lips define an aperture opposite the base 12 of the member having a width d.
- anchoring lugs 22 are pressed out so that they extend outwardly from the outer surface of the base 12.
- Each lug comprises a first portion 24 substantially perpendicular to the plane of the base 12 and an end portion 26 which lies substantially parallel to the plane of the base portion 12.
- the insert comprises a central, generally rectangular portion 28 which is flanked by two thinner, substantially parallel side portions 30, one portion being situated on either side of the block 28.
- the block 28 and the two side portions 30 are all integrally formed from the expanded polystyrene foam, and are all connected together, as can be seen from the Figures.
- the insert further comprises two elongate slots 32 running parallel to the longitudinal direction of the insert. The slots are approximately 1.5mm wide and extend to a point approximately 3mm from the base of the insert.
- the width of the central block 28 is narrower than the width d of the aperture between the lips 18,20 by a distance equal to the total of the slot widths, i.e. approximately 3mm narrower than the aperture. Also, the inner upper edge of the side portions 30 is cutaway to define a further recess 34, each of which is adapted to receive a respective one of the two lips 18, 20 of the channel-section member.
- one or more inserts are slid longitudinally into the channel-section member, so that substantially the whole of the volume of the member is filled.
- Fig. 2 when in position, substantially the whole of the volume of the channel-section member is filled with the expanded polystyrene foam insert.
- the edges of the lips 18, 20 of the elongate channel-section member abut the recesses 34 in the side portions of the insert, thereby protecting those edges.
- the uppermost, projecting portions 36 of the side portions 30 fit snugly into that portion of the volume of the channel-section member between the lips 18, 20 and their respective side walls 14, 16.
- the member With the inserts in position in the channel-section member, the member is temporarily affixed in its position, by, for example, nailing the member with nails 38 to wooden shuttering 40 (Fig. 4) which is to hold concrete when poured.
- the concrete is then poured in, and sets to form a wall 42 (as seen in Fig. 5) as defined by the shape of the enclosing shuttering which is then removed.
- the channel-section member is set firmly into the concrete wall thus formed, and the lugs 26 provide a firm anchorage in the wall.
- the concrete would flow into the channel-section member through the apertures in the base 12 of the member, and would set within the member, making it unsuitable for use.
- substantially the whole volume of the channel-section member is taken up by the insert, such that there is nowhere inside the channel-section member for the concrete to flow.
- the channel-section member, and in particular the lips 18, 20, does not become fouled by concrete.
- FIG. 6 of the accompanying drawings A second embodiment of the insert is illustrated in Fig. 6 of the accompanying drawings.
- the insert is identical to that of the first embodiment, with a central, generally rectangular portion 28 which is flanged by two thiner, substantially parallel side portions 30, one portion being situated on either side of the block 28.
- the block 28 and the two side portions 30 are integrally formed from expanded polystyrene foam, and are connected together.
- the same reference numerals as used in the first embodiment will be used to refer to corresponding features in the second embodiment.
- first and second embodiments The only difference between the first and second embodiments is the provision of a self adhesive tape 50 which is stuck onto that face of the insert which, in use, is adjacent to the base of the channel section member. Secured onto the tape in between the tape and the insert are two parallel nylon cords 52 which are positioned on the tape such that when the tape is applied to the insert the cords are aligned with the respective slots 32 in the insert, i.e. adjacent those portions of the insert which join the central portion 28 to the side portions 30.
- the inserts are slid longitudinally into the channel-section member as before.
- the channel-section member is then temporarily affixed as before, and the concrete is poured in and sets to form a wall 42.
- the concrete is merely necessary to pull each of the cords 52, which cuts through the small amount of foam connecting the central block 28 to the two side portions 30, and the central block 28 may then be lifted away. Once the central block 28 has been removed, the remaining side portions 30 may then be easily removed through the aperture.
- nylon cord can be replaced with any elongate member, for example, a string.
- any elongate member for example, a string.
- cords or other elongate members may be easily accessible once the concrete has set, it is advisable to leave a length of cord and/or tape at the end of each insert, such that the cord and/or tape can project beyond the insert and channel-section member.
- the width and/or depth of the insert may be varied, as long as the depth of the portion connecting the central block with the or each side portion is small enough to allow it to be cut by a blade and/or a tape or other elongate member.
- the embodiments have been described for use with a channel-section member having two elongate lips overhanging the base, the invention is equally applicable to a member having a single overhanging lip or more than two overhanging lips.
- the insert may, for example comprise polyurethane foam or may comprise some other material such as unfoamed plastics. Any material which can easily be severed may be used.
Abstract
Description
- The present invention relates to inserts for a channel section member, and in particular, but not exclusively, to inserts which are only temporarily inserted in a channel section member.
- In a building, it is often necessary to provide a frame work or support structure which is adapted to act as support for various structures, such as cable racking to carry cables, suspended ceilings or modular floors. Sometimes such frameworks or support structures rest on a solid floor or are suspended from a secure overhead point, such as a roof beam.
- However, it is sometimes desirable to secure some elements of the framework or support structure to a wall. If this is done in the early stages of constructing the building, when concrete is being poured, it is possible to hold the frame member in position and form the concrete around the frame member, such that when the concrete has hardened the frame member will be set into the concrete and securely affixed therein.
- Frequently, the frame members which are set into concrete are channel section members into which other elements of the framework or support structure are to be fitted at a later time. In order to prevent the ingress of concrete, such channel section members are provided with elongate inserts, often constructed of expanded polystyrene or polyurethane foam. Frequently, this is done merely by pressing in several lengths of the foam into the open face of the channel-section member and upon setting of the concrete the polystyrene foam may then be removed.
- However, the above-described polystyrene foam inserts are not particularly suitable for channel-section members having two opposed, overhanging elongate lips onto which other frame members are to be secured at a later date. If the foam insert is to be pressed into the open face of the channel section member, then its width will be equal to that of the aperture between the lips in the open face, and in particular, the insert will not extend into that region of the interior of the channel-section member underneath the elongate lips. Thus, it often happens that concrete finds its way into these voids, fouling the securing surfaces of the elongate lips resulting in poor securing of other framework members to the member attached to the wall.
- One way around the above problem is to provide an insert whose cross section is shaped complementarily to that of the channel-section member, such that the voids previously left under the overhanging lips is filled. In order to insert the inserts, it is merely necessary slide one or more of them longitudinally along the channel-section member to be secured.
- Such a shaped insert works very well to keep concrete away from the securing surfaces of the overhanging lips of the channel-section member. However, whereas previously it was possible merely to pull out the insert when the concrete had set, it is necessary to dig out the shaped insert, for example with a knife, since the portions of the insert underneath the overhanging lips prevent the insert from being pulled clean out of the apertured face of the channel-section member. Moreover, at this stage, the ends of the frame member are normally encased in concrete, so that it is not possible to slide the inserts out longitudinally.
- The removal of the inserts is necessary in order to allow the insertion of other frame members or frame securing members, and also the material used (expanded polystyrene foam) is normally highly flammable, and so must be removed for safety. Removing the insert by hand is a time-consuming process, and it is found that a quick, but extremely dangerous, alternative is to set the insert alight, possibly assisted by an inflammable liquid such as petrol. It can be appreciated that this is a very dangerous practice, but it is one which occurs due to the length of time it takes for inserts to be removed.
- It is an object of the present invention to provide an elongate insert for temporary insertion into an elongate, lipped channel-section member which is shaped to minimise the ingress of concrete if the channel-section member is being set into concrete, but which may also be rapidly, easily and safely removed.
- In accordance with the present invention, an elongate insert for insertion into an elongate, open, channel-section member having at least one elongate lip overhanging its base comprises a first elongate portion adapted to be received by the open portion of the channel-section member and a second elongate portion, attached to the first elongate portion, adapted to be received in that portion of the channel section member beneath the overhanging lip, the first and second portions being separated by an elongate slot which extends past the lip towards the base of the channel-section member.
- Such an insert may be slid into a lipped, channel-section member and fills substantially the whole of the interior of the channel-section member. The channel-section member may then be set into concrete, and upon setting of the concrete the insert may be easily removed by slitting it along the or each elongate slot to remove that portion of the insert in the open portion of the channel-section member. The or each remaining portion of the insert positioned beneath the or each lip may then be easily pulled out.
- Preferably, the or each elongate slot separating the first and second portions extends to a point adjacent to the base of the insert.
- By way of example only, specific embodiments of the present invention will now be described, with reference to the accompanying drawings, in which;-
- Fig. 1 is a perspective view of a channel-section member fitted with a first embodiment of insert in accordance with the present invention;
- Fig. 2 is a cross-section of the member and insert of Fig. 1;
- Fig. 3 is a perspective view of the insert of Fig. 1;
- Fig. 4 is a perspective view showing how the channel-section member and insert are temporarily attached to shuttering before the application of concrete to form a wall;
- Fig. 5 is a perspective view, partly cut away, of part of a wall having the channel-section member of Fig. 1 set therein, together with other members of a framework connected to the member; and
- Fig. 6 is a perspective view of a second embodiment of insert in accordance with the present invention.
- Referring firstly to Figs. 1 and 2, an elongate channel-section member 10 comprises a flat
planar base 12 and two parallel, opposedside walls base 12, the edges formed by the conjunction of thebase 12 and theside walls side walls longitudinal lips base 12 of the member having a width d. - At spaced intervals along the
base 12, anchoringlugs 22 are pressed out so that they extend outwardly from the outer surface of thebase 12. Each lug comprises afirst portion 24 substantially perpendicular to the plane of thebase 12 and anend portion 26 which lies substantially parallel to the plane of thebase portion 12. - The insert comprises a central, generally
rectangular portion 28 which is flanked by two thinner, substantiallyparallel side portions 30, one portion being situated on either side of theblock 28. Theblock 28 and the twoside portions 30 are all integrally formed from the expanded polystyrene foam, and are all connected together, as can be seen from the Figures. The insert further comprises twoelongate slots 32 running parallel to the longitudinal direction of the insert. The slots are approximately 1.5mm wide and extend to a point approximately 3mm from the base of the insert. - The width of the
central block 28 is narrower than the width d of the aperture between thelips side portions 30 is cutaway to define afurther recess 34, each of which is adapted to receive a respective one of the twolips - In use, one or more inserts are slid longitudinally into the channel-section member, so that substantially the whole of the volume of the member is filled. It can be seen from Fig. 2 that when in position, substantially the whole of the volume of the channel-section member is filled with the expanded polystyrene foam insert. In particular, the edges of the
lips recesses 34 in the side portions of the insert, thereby protecting those edges. It can also be seen that the uppermost, projectingportions 36 of theside portions 30 fit snugly into that portion of the volume of the channel-section member between thelips respective side walls - With the inserts in position in the channel-section member, the member is temporarily affixed in its position, by, for example, nailing the member with
nails 38 to wooden shuttering 40 (Fig. 4) which is to hold concrete when poured. The concrete is then poured in, and sets to form a wall 42 (as seen in Fig. 5) as defined by the shape of the enclosing shuttering which is then removed. Thus, the channel-section member is set firmly into the concrete wall thus formed, and thelugs 26 provide a firm anchorage in the wall. - Without the use of the insert, the concrete would flow into the channel-section member through the apertures in the
base 12 of the member, and would set within the member, making it unsuitable for use. However, with the insert in accordance with the present invention, substantially the whole volume of the channel-section member is taken up by the insert, such that there is nowhere inside the channel-section member for the concrete to flow. Thus, the channel-section member, and in particular thelips - Once the concrete has set and the shuttering has been removed, it is necessary to remove the insert from within the channel-section member. This is done by inserting a sharp blade, for example a knife blade, into each of the
slots 32 in turn, and running the blade along the slots in a direction parallel to the longitudinal axis of the insert. Such an action cuts through the small amount of foam which connects thecentral block 28 to the twoflanking blocks 30, and thecentral block 28 may then be lifted away. Although expanded polystyrene foam is very difficult to cut, the very small thickness of foam which it is necessary to cut presents no problem in this respect. Once thecentral block 28 has been removed, theremaining side portions 30 may then be easily removed through the aperture between thelips -
Other members - A second embodiment of the insert is illustrated in Fig. 6 of the accompanying drawings. The insert is identical to that of the first embodiment, with a central, generally
rectangular portion 28 which is flanged by two thiner, substantiallyparallel side portions 30, one portion being situated on either side of theblock 28. As in the first embodiment, theblock 28 and the twoside portions 30 are integrally formed from expanded polystyrene foam, and are connected together. The same reference numerals as used in the first embodiment will be used to refer to corresponding features in the second embodiment. - The only difference between the first and second embodiments is the provision of a self
adhesive tape 50 which is stuck onto that face of the insert which, in use, is adjacent to the base of the channel section member. Secured onto the tape in between the tape and the insert are twoparallel nylon cords 52 which are positioned on the tape such that when the tape is applied to the insert the cords are aligned with therespective slots 32 in the insert, i.e. adjacent those portions of the insert which join thecentral portion 28 to theside portions 30. - In use, the inserts are slid longitudinally into the channel-section member as before. The channel-section member is then temporarily affixed as before, and the concrete is poured in and sets to form a
wall 42. Once the concrete has set and the shuttering has been removed, instead of inserting a sharp blade into each of theslots 32 in turn, it is merely necessary to pull each of thecords 52, which cuts through the small amount of foam connecting thecentral block 28 to the twoside portions 30, and thecentral block 28 may then be lifted away. Once thecentral block 28 has been removed, the remainingside portions 30 may then be easily removed through the aperture. - The above embodiment has been described with reference to a nylon cord, but it should be appreciated that the nylon cord can be replaced with any elongate member, for example, a string. In order that the cords or other elongate members may be easily accessible once the concrete has set, it is advisable to leave a length of cord and/or tape at the end of each insert, such that the cord and/or tape can project beyond the insert and channel-section member.
- The invention is not restricted to the details of the foregoing embodiments. In particular, the width and/or depth of the insert may be varied, as long as the depth of the portion connecting the central block with the or each side portion is small enough to allow it to be cut by a blade and/or a tape or other elongate member. Also, although the embodiments have been described for use with a channel-section member having two elongate lips overhanging the base, the invention is equally applicable to a member having a single overhanging lip or more than two overhanging lips.
- Nor is the construction of the present invention restricted to polystyrene foam or even to foam at all. The insert may, for example comprise polyurethane foam or may comprise some other material such as unfoamed plastics. Any material which can easily be severed may be used.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89303659T ATE77431T1 (en) | 1988-04-14 | 1989-04-13 | USE FOR U-PROFILES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8808808 | 1988-04-14 | ||
GB888808808A GB8808808D0 (en) | 1988-04-14 | 1988-04-14 | Insert for channel section member |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0340927A1 true EP0340927A1 (en) | 1989-11-08 |
EP0340927B1 EP0340927B1 (en) | 1992-06-17 |
Family
ID=10635177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89303659A Expired - Lifetime EP0340927B1 (en) | 1988-04-14 | 1989-04-13 | Insert for a channel section member |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0340927B1 (en) |
AT (1) | ATE77431T1 (en) |
DE (1) | DE68901809T2 (en) |
GB (1) | GB8808808D0 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2243396A (en) * | 1990-04-26 | 1991-10-30 | Wincro Metal Ind Ltd | Apparatus for use with cast-in channels for facade support and restraint apparatus |
FR2735525A1 (en) * | 1995-06-13 | 1996-12-20 | Couvraneuf Sa | Method of forming drainage duct for tunnel sections |
EP2333176A1 (en) * | 2009-11-23 | 2011-06-15 | Profilanker GmbH | Attachment rail |
CN102444208A (en) * | 2010-10-04 | 2012-05-09 | 喜利得股份公司 | Anchor rail with pull strip |
WO2012022515A3 (en) * | 2010-07-21 | 2012-10-18 | Hilti Aktiengesellschaft | Anchor rail with a tie |
EP2336441A3 (en) * | 2009-12-21 | 2014-02-26 | Thomas Friedrich | Anchor bar for encasing in concrete |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH336585A (en) * | 1956-11-24 | 1959-02-28 | Gubler Gottfried | Device for the production of concrete bodies having recesses |
AU501505B2 (en) * | 1976-04-13 | 1979-06-21 | Guest Keen & Nettlefolds Ltd | Filler for channel-sectioned concrete insert |
EP0123979A2 (en) * | 1983-04-29 | 1984-11-07 | Unistrut Europe PLC | Anchoring channel for structural engineering |
DE8504883U1 (en) * | 1985-02-21 | 1986-06-19 | Halfeneisen GmbH & Co KG, 4000 Düsseldorf | Anchor channel with a C-shaped cross-section that can be embedded in concrete |
-
1988
- 1988-04-14 GB GB888808808A patent/GB8808808D0/en active Pending
-
1989
- 1989-04-13 AT AT89303659T patent/ATE77431T1/en not_active IP Right Cessation
- 1989-04-13 EP EP89303659A patent/EP0340927B1/en not_active Expired - Lifetime
- 1989-04-13 DE DE8989303659T patent/DE68901809T2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH336585A (en) * | 1956-11-24 | 1959-02-28 | Gubler Gottfried | Device for the production of concrete bodies having recesses |
AU501505B2 (en) * | 1976-04-13 | 1979-06-21 | Guest Keen & Nettlefolds Ltd | Filler for channel-sectioned concrete insert |
EP0123979A2 (en) * | 1983-04-29 | 1984-11-07 | Unistrut Europe PLC | Anchoring channel for structural engineering |
DE8504883U1 (en) * | 1985-02-21 | 1986-06-19 | Halfeneisen GmbH & Co KG, 4000 Düsseldorf | Anchor channel with a C-shaped cross-section that can be embedded in concrete |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2243396A (en) * | 1990-04-26 | 1991-10-30 | Wincro Metal Ind Ltd | Apparatus for use with cast-in channels for facade support and restraint apparatus |
FR2735525A1 (en) * | 1995-06-13 | 1996-12-20 | Couvraneuf Sa | Method of forming drainage duct for tunnel sections |
EP2333176A1 (en) * | 2009-11-23 | 2011-06-15 | Profilanker GmbH | Attachment rail |
EP2336441A3 (en) * | 2009-12-21 | 2014-02-26 | Thomas Friedrich | Anchor bar for encasing in concrete |
WO2012022515A3 (en) * | 2010-07-21 | 2012-10-18 | Hilti Aktiengesellschaft | Anchor rail with a tie |
CN103025976A (en) * | 2010-07-21 | 2013-04-03 | 喜利得股份公司 | Anchor rail with a tie |
CN102444208A (en) * | 2010-10-04 | 2012-05-09 | 喜利得股份公司 | Anchor rail with pull strip |
EP2436846A3 (en) * | 2010-10-04 | 2014-01-22 | HILTI Aktiengesellschaft | Anchor bar with strap |
CN102444208B (en) * | 2010-10-04 | 2016-01-06 | 喜利得股份公司 | There is the anchor of pull strap |
Also Published As
Publication number | Publication date |
---|---|
EP0340927B1 (en) | 1992-06-17 |
ATE77431T1 (en) | 1992-07-15 |
DE68901809D1 (en) | 1992-07-23 |
DE68901809T2 (en) | 1993-01-14 |
GB8808808D0 (en) | 1988-05-18 |
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