CA1170473A - Groove and tongue connecting assembly for frames, in particular for frames for reinforced concrete forms - Google Patents
Groove and tongue connecting assembly for frames, in particular for frames for reinforced concrete formsInfo
- Publication number
- CA1170473A CA1170473A CA000399854A CA399854A CA1170473A CA 1170473 A CA1170473 A CA 1170473A CA 000399854 A CA000399854 A CA 000399854A CA 399854 A CA399854 A CA 399854A CA 1170473 A CA1170473 A CA 1170473A
- Authority
- CA
- Canada
- Prior art keywords
- rods
- bracket
- frames
- arms
- connecting assembly
- 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.)
- Expired
Links
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 7
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 230000008093 supporting effect Effects 0.000 claims abstract 3
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
- E04G17/045—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by wedge-shaped elements
-
- 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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G2009/023—Forming boards or similar elements with edge protection
- E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
ABSTRACT
The connection assembly for reinforced concrete forms consists of brackets (30) (Figure 5), the arms (32-33) of which terminate in shaped tabs (34-35) inclined both longitudinally and transversally to engage relevant ribs (20-21) on the opposite faces of shaped rods (B1,B2,B3), said rods being pertinent to frames s secured to panels A
used to form the concrete form.
Brackets (30) engage and secure two perimetral rods (B1 and B2) of two adjacent panels (A) to each other;
alternatively, said brackets secure frames B to the support-ing structure by means of intermediate rods (B3) provided by said frames (B) and which cooperate with uprights (C) of the supporting form.
+ + + + +
The connection assembly for reinforced concrete forms consists of brackets (30) (Figure 5), the arms (32-33) of which terminate in shaped tabs (34-35) inclined both longitudinally and transversally to engage relevant ribs (20-21) on the opposite faces of shaped rods (B1,B2,B3), said rods being pertinent to frames s secured to panels A
used to form the concrete form.
Brackets (30) engage and secure two perimetral rods (B1 and B2) of two adjacent panels (A) to each other;
alternatively, said brackets secure frames B to the support-ing structure by means of intermediate rods (B3) provided by said frames (B) and which cooperate with uprights (C) of the supporting form.
+ + + + +
Description
D~S~RIPTION
The invention relates to a groove and tongue connecting assembly to join movably together parts o frames in yeneral, and in particular, frames for rein-forced concrete forms.
With particular reference to forms for rein-forced concrete castings, where the invention has particular, but not exclrsive application, the movabl~ coupling of metal elements is required for frames secured to panels which delimit the cavity for casting the concrete.
At present, in order to obtain concrete cast-ings with plane, smooth surfaces, for obtaining forms, panels of large dimensions and constituted by plywood and by mixes based on wood fibre and similar materials are used. While on the one hand the use of these panels offers some advantages, on the other hand it gives rise to certain drawbacks with regard to the structure of these panels and their coupling to obtain forms with the desired characteristics.
The scope of the present invention is to permit joining and coupling of two or more panels along their vertical and/or horizontal edge in order to obtain a com-posite panel of the dimensions desired, extending longi-tudinally and/or vertically.
A further scope of the present invention is to simultaneously obtain with the coupling, the joining of two or more elementary panels, also the alignment of said panels in the sense that the composite panel obtained will efficiently and satisfactorily withstand the pressure of the concrete casting.
A still further scope of the present invention is to secure to the composite panel any other such element as may be necessary for making a concrete form or operating same.
The connection assembly according to the invention utilizes the actions and reactions characteristic of the shifting of a load along an inclined plane, accounting for attrition between the contact surfaces, such that the orientation of said surfaces will provide angles charac-teristic for the scope to be achieved.
According to the invention there is provided an assembly to connect releasably the rods of metallic frames, in particular for reinforced concrete forms, characterized in that the assembly is provided, in combination with at least two stiffening rods, with a locking bracket, the arms of which terminate with opposed tabs inclined with respect to the longitudinal axis of said bracket and which engage a series of ribs provided longitudinally on at least one of the stiffening rods and provided, in the proximity of said ribs, with surfaces engaging with the middle part of the bracket to secure to said rod the complementary rods of the frame.
Preferably, the pair of engagement ribs for the inclined tabs of the bracket arms :~.
~re ~rovided by thc op~,osite faces of a l~-shcl~ed (or similar) rod to clamp to e~ch other and throucJh said ; bracket,one or more complementary rods overlapplng and parallel to each other.
The coupling of the rods of the two adjacent frames is effected by using the peri~netral rods along-side each other and which have, on their opposite faces, the elements of the pair of ribs with which the tabs of the bracket engage; said rods, towards their longitudinal extremity, are provided with opposite tabs which engage the mid part of the bracket to ensure, in addition to the reciproca] locking of the two rods, also the align-ment of same.
The invention will now be explained by the following description which refers to the annexed drawings, which illustrate, by way of example, the connection ; assembly according to the invention.
In the drawings:
Figure 1 is a partial front view of the panels of a form for molding reinforced concrete;
Figure 2 is a top view;
Figure 3 and 4 are sectional views on an enlarged scale taken on lines III~III and IV-IV of Figure 1;
Figure 5 is a schematic view of the longitudinal section of the connection assembly of Figure 4.
With reference to the figures of the drawings, letter A identifies the panels for the concrete casting, lL3L`~Q'l~ ~
said panels being provided with a metal fr~m~ B forll!ed by perirnetral rods s1 (vertical) and s2 (horizontal) and by intermediate or stiffening rods B3.
In addition, are also provided rods C relating to the supportin~ structure, which are intcnded to align and stiffen panels A, while the containment of the cast is ensured by tie-rods secured to said panels.
Figure 3 of the drawings shows two adjacent panels A, each of which is provided with a frame B. The frame comprises vertical and horizontal rods B1 and B2 and intermediate rods B3, each of which is U-shaped.
Arms 10 and 12 of each rod B1 and B2 terminate with squared tabs 14 and 16 all folded in the same direction so that the first; 14, of these form ledges to hold the edges of panels A, while the second, 16, are folded towards the cavity of the U-shaped rod in question.
Intermediate wall 18 of said U-shaped rods B1 and B2 is provided substantially in its mid part with ribs 20, suitably sized and inclined with respect to the longitudinal axis of their associated rod, so as to form (Figure 5) with ths longitudinal axis x-x of the latter an angle ~ comprised between 2~ and 8. Advantageously, this angle is about 5 in relation also to what will be stated hereinunder.
Again with reference to Figure 3 of the drawings, frame B relating to the panel adjacent to that considered, consists of rods B1 of equal profile and in this figure the cquivalent parts to those previously considered are identified by odd numbers. Rods B1 are so arran~e that the beginning and end of ribs 20 and 21 are coincident : and aligned.
For this purpose, and if required - especi.ally when it is not possible to use locking elements D on certain parts of frame B - rods s1 are provided in suitable positions with pairs of holes into which alignment pins 22 can slot. The connecting and locking assembly D for rods B1 lS formed by a bracket 30, the arms 32 and 33 of which are inclined so as to diverge upwardly and terminate at their ends with tabs 34 and 35, inclined as shown in Flgure 3 so as to converge in the upward direction.
The inclination angle ~ formed by tabs 34 and 35 with the mid part 36 of bracket 30 is approximately 45 and said tabs thus engage with ribs 20~21, the association of whlch has a semi-circular or similar profile so that during the tightening phase forces W are developed, the ` components of which lock both the right angle tabs 14-15 and 16-17 and the mid part 36 against arms 10~12 of rods B1.
Furthermore, said tabs 34-35 are lnclined with respect to the longitudinal axis of bracket 30, the angle of which is substantially equal to the angle of ribs 20-21 (see Figure 5), whlle the mid part 36 of bracket 30 is plane to cooperate face to face with arms 12 and 13 of rods B1 of frame B.
' 13 '~
Lastly, bracket 30 is provided a~ its rnid part 36 with enlargements 3~ forming percussion edges apt to forcibly engage tabs 34-35 of said bracket with the previously mentioned inclined rihs 20-21.
In the light of what stated above, it is evident that the coupling and locking of the two panels provided with a frame B is effected by inserting two or more brackets D on rods B1 of the two adjacent frames, so that the inclined tabs 34-35 of each bracket engage with ribs 21 and 21 provided by the two opposite rods B1 of the two frames.
The above operations, if required, can be pre-ceded by insertion of pins 22 into the holes in said rods B1; however, in practice and without effecting further connections, the mounting of panels A is effected by sliding, for example by percussion, bracket D in the direction of arrows y (Figure 5). In thls manner, one obtains face to face engagement of tabs 14-15 and 16 17, as well as alignment of arms 12-13 in relation to the en-gagement of the faces of said arms with lntermediate : part 36 of bracket 30.
The co-planar arrangement of the panels relat-ing to the frames in consideration is also achieved since these are secured to the square edges formed by arms 10 and 11 and their associated tabs 14 and 15.
With reference to Figure 4, alike or equivalent parts to those of Figure 3 are identified by the same reference symbols. In this case, the connection between intermediate rods B3 and alignmcnt uprights C is obtaincd by means of bracket D in the same manner as in Figure 3.
Rod B3 in th s case is U-shaped and the ends of its arms 18a and 19a are folded at ri.ght ang].es and secured in a suitable ~Jay to panel A under consideration. Said arms, in the proximity of intermediate wall 40, are provided with inclined ribs 20a and 21a which engage with inclined tabs 34-35 of bracket 30, previously considered.
In this case, the intermediate part 36 of said bracket engages with upright C which is thus locked against intermediate wall 40 of rod B3. Also in this case, the coupling and locking of rods B3 and uprights C are obtained by the en~agement of bracket D with ribs 20a - 21a of rod B3.
In Figure 5, which is a longitudinal cross sec-tion of ~igure ~, letter ~ identifies the wood conglomerate panel, B3 the intermediate rod, C the upright of the frame (for alignment), D the bracket, 20-21 the rib comprised by rod B3 inclined at an angle comprised between 2'and 8, - preferably 5 with respect to the longitudinal axis x-x of rod B3; it is clear from the figure that bracket D (slidably engaged with its tabs 3~-35 on ribs 20-21), when pushed in the direction of arrow y, tends to tighten its mid part 36 against intermediate Fod C and in turn the latter against . rod B3.
It is understood that the connecting assembly as described and illustrated may be modified dependin~ on ~,t7~ t~;~
application requircments, in particular ~ith re~ard to the charactcristics of fram~ B, comprised by p~nels A, to allow easy and rapid realisation of the concrete forms.
+ + + + +
The invention relates to a groove and tongue connecting assembly to join movably together parts o frames in yeneral, and in particular, frames for rein-forced concrete forms.
With particular reference to forms for rein-forced concrete castings, where the invention has particular, but not exclrsive application, the movabl~ coupling of metal elements is required for frames secured to panels which delimit the cavity for casting the concrete.
At present, in order to obtain concrete cast-ings with plane, smooth surfaces, for obtaining forms, panels of large dimensions and constituted by plywood and by mixes based on wood fibre and similar materials are used. While on the one hand the use of these panels offers some advantages, on the other hand it gives rise to certain drawbacks with regard to the structure of these panels and their coupling to obtain forms with the desired characteristics.
The scope of the present invention is to permit joining and coupling of two or more panels along their vertical and/or horizontal edge in order to obtain a com-posite panel of the dimensions desired, extending longi-tudinally and/or vertically.
A further scope of the present invention is to simultaneously obtain with the coupling, the joining of two or more elementary panels, also the alignment of said panels in the sense that the composite panel obtained will efficiently and satisfactorily withstand the pressure of the concrete casting.
A still further scope of the present invention is to secure to the composite panel any other such element as may be necessary for making a concrete form or operating same.
The connection assembly according to the invention utilizes the actions and reactions characteristic of the shifting of a load along an inclined plane, accounting for attrition between the contact surfaces, such that the orientation of said surfaces will provide angles charac-teristic for the scope to be achieved.
According to the invention there is provided an assembly to connect releasably the rods of metallic frames, in particular for reinforced concrete forms, characterized in that the assembly is provided, in combination with at least two stiffening rods, with a locking bracket, the arms of which terminate with opposed tabs inclined with respect to the longitudinal axis of said bracket and which engage a series of ribs provided longitudinally on at least one of the stiffening rods and provided, in the proximity of said ribs, with surfaces engaging with the middle part of the bracket to secure to said rod the complementary rods of the frame.
Preferably, the pair of engagement ribs for the inclined tabs of the bracket arms :~.
~re ~rovided by thc op~,osite faces of a l~-shcl~ed (or similar) rod to clamp to e~ch other and throucJh said ; bracket,one or more complementary rods overlapplng and parallel to each other.
The coupling of the rods of the two adjacent frames is effected by using the peri~netral rods along-side each other and which have, on their opposite faces, the elements of the pair of ribs with which the tabs of the bracket engage; said rods, towards their longitudinal extremity, are provided with opposite tabs which engage the mid part of the bracket to ensure, in addition to the reciproca] locking of the two rods, also the align-ment of same.
The invention will now be explained by the following description which refers to the annexed drawings, which illustrate, by way of example, the connection ; assembly according to the invention.
In the drawings:
Figure 1 is a partial front view of the panels of a form for molding reinforced concrete;
Figure 2 is a top view;
Figure 3 and 4 are sectional views on an enlarged scale taken on lines III~III and IV-IV of Figure 1;
Figure 5 is a schematic view of the longitudinal section of the connection assembly of Figure 4.
With reference to the figures of the drawings, letter A identifies the panels for the concrete casting, lL3L`~Q'l~ ~
said panels being provided with a metal fr~m~ B forll!ed by perirnetral rods s1 (vertical) and s2 (horizontal) and by intermediate or stiffening rods B3.
In addition, are also provided rods C relating to the supportin~ structure, which are intcnded to align and stiffen panels A, while the containment of the cast is ensured by tie-rods secured to said panels.
Figure 3 of the drawings shows two adjacent panels A, each of which is provided with a frame B. The frame comprises vertical and horizontal rods B1 and B2 and intermediate rods B3, each of which is U-shaped.
Arms 10 and 12 of each rod B1 and B2 terminate with squared tabs 14 and 16 all folded in the same direction so that the first; 14, of these form ledges to hold the edges of panels A, while the second, 16, are folded towards the cavity of the U-shaped rod in question.
Intermediate wall 18 of said U-shaped rods B1 and B2 is provided substantially in its mid part with ribs 20, suitably sized and inclined with respect to the longitudinal axis of their associated rod, so as to form (Figure 5) with ths longitudinal axis x-x of the latter an angle ~ comprised between 2~ and 8. Advantageously, this angle is about 5 in relation also to what will be stated hereinunder.
Again with reference to Figure 3 of the drawings, frame B relating to the panel adjacent to that considered, consists of rods B1 of equal profile and in this figure the cquivalent parts to those previously considered are identified by odd numbers. Rods B1 are so arran~e that the beginning and end of ribs 20 and 21 are coincident : and aligned.
For this purpose, and if required - especi.ally when it is not possible to use locking elements D on certain parts of frame B - rods s1 are provided in suitable positions with pairs of holes into which alignment pins 22 can slot. The connecting and locking assembly D for rods B1 lS formed by a bracket 30, the arms 32 and 33 of which are inclined so as to diverge upwardly and terminate at their ends with tabs 34 and 35, inclined as shown in Flgure 3 so as to converge in the upward direction.
The inclination angle ~ formed by tabs 34 and 35 with the mid part 36 of bracket 30 is approximately 45 and said tabs thus engage with ribs 20~21, the association of whlch has a semi-circular or similar profile so that during the tightening phase forces W are developed, the ` components of which lock both the right angle tabs 14-15 and 16-17 and the mid part 36 against arms 10~12 of rods B1.
Furthermore, said tabs 34-35 are lnclined with respect to the longitudinal axis of bracket 30, the angle of which is substantially equal to the angle of ribs 20-21 (see Figure 5), whlle the mid part 36 of bracket 30 is plane to cooperate face to face with arms 12 and 13 of rods B1 of frame B.
' 13 '~
Lastly, bracket 30 is provided a~ its rnid part 36 with enlargements 3~ forming percussion edges apt to forcibly engage tabs 34-35 of said bracket with the previously mentioned inclined rihs 20-21.
In the light of what stated above, it is evident that the coupling and locking of the two panels provided with a frame B is effected by inserting two or more brackets D on rods B1 of the two adjacent frames, so that the inclined tabs 34-35 of each bracket engage with ribs 21 and 21 provided by the two opposite rods B1 of the two frames.
The above operations, if required, can be pre-ceded by insertion of pins 22 into the holes in said rods B1; however, in practice and without effecting further connections, the mounting of panels A is effected by sliding, for example by percussion, bracket D in the direction of arrows y (Figure 5). In thls manner, one obtains face to face engagement of tabs 14-15 and 16 17, as well as alignment of arms 12-13 in relation to the en-gagement of the faces of said arms with lntermediate : part 36 of bracket 30.
The co-planar arrangement of the panels relat-ing to the frames in consideration is also achieved since these are secured to the square edges formed by arms 10 and 11 and their associated tabs 14 and 15.
With reference to Figure 4, alike or equivalent parts to those of Figure 3 are identified by the same reference symbols. In this case, the connection between intermediate rods B3 and alignmcnt uprights C is obtaincd by means of bracket D in the same manner as in Figure 3.
Rod B3 in th s case is U-shaped and the ends of its arms 18a and 19a are folded at ri.ght ang].es and secured in a suitable ~Jay to panel A under consideration. Said arms, in the proximity of intermediate wall 40, are provided with inclined ribs 20a and 21a which engage with inclined tabs 34-35 of bracket 30, previously considered.
In this case, the intermediate part 36 of said bracket engages with upright C which is thus locked against intermediate wall 40 of rod B3. Also in this case, the coupling and locking of rods B3 and uprights C are obtained by the en~agement of bracket D with ribs 20a - 21a of rod B3.
In Figure 5, which is a longitudinal cross sec-tion of ~igure ~, letter ~ identifies the wood conglomerate panel, B3 the intermediate rod, C the upright of the frame (for alignment), D the bracket, 20-21 the rib comprised by rod B3 inclined at an angle comprised between 2'and 8, - preferably 5 with respect to the longitudinal axis x-x of rod B3; it is clear from the figure that bracket D (slidably engaged with its tabs 3~-35 on ribs 20-21), when pushed in the direction of arrow y, tends to tighten its mid part 36 against intermediate Fod C and in turn the latter against . rod B3.
It is understood that the connecting assembly as described and illustrated may be modified dependin~ on ~,t7~ t~;~
application requircments, in particular ~ith re~ard to the charactcristics of fram~ B, comprised by p~nels A, to allow easy and rapid realisation of the concrete forms.
+ + + + +
Claims (8)
1. An assembly to connect releasably the rods of metallic frames, in particular for reinforced concrete forms, char-acterized in that the assembly is provided, in combination with at least two stiffening rods, with a locking bracket, the arms of which terminate with opposed tabs inclined with respect to the longitudinal axis of said bracket and which engage a series of ribs provided longitudinally on at least one of the stiffening rods and provided, in the proximity of said ribs, with surfaces engaging with the middle part of the bracket to secure to said rod the complementary rods of the frame.
2. A connecting assembly according to claim 1, charac-terized in that the tabs of the bracket are transversally inclined to converge in the upward direction.
3. A connecting assembly according to claim 1 charac-terized in that the tabs of the bracket arms are inclined and extend with respect to the longitudinal axis of said bracket so as to form an angle comprised between 2° and 8°.
4. A connecting assembly according to claim 1, 2 or 3, characterized in that the face of middle part of the bracket is parallel to the longitudinal axis of the rod with which said bracket engages.
5. A connecting assembly according to claim 1, 2 or 3, characterized in that the face of the middle part of the bracket is parallel to the longitudinal axis of a pair of ribs provided on the rod or rods of the frame.
6. A connecting assembly according to claim 1, in partic-ular for the frames of panels for concrete forms or the like, characterized in that at least part of perimetral rods of said frame consist of U-shaped sections, the arms of which are provided at their ends with right angle tabs oriented in the same direction, while the middle parts of said rods are provided with the elements of a pair of inclined ribs which engage the corresponding tabs of the bracket in such way that the latter ensure both the mutual locking of the two adjacent parallel rods and the align-ment of the arms of said rods, a part of which engages by contrast the middle part of said bracket.
7. A connecting assembly according to claim 6, character-ized in that the middle parts of the perimetral rods of the frame are provided with aligned holes for reference pins apt to ensure co-planarity and alignment of panels of said frames,
8. A connecting assembly according to claim 1, claim 2 or claim 3, characterized in that it is provided with U-shaped rods fixed with the ends of the arms thereof to panels; which arms are provided with at least one complementary rod of the supporting structure of the concrete form or the like.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT22796/81 | 1981-07-07 | ||
| IT8122796A IT8122796A0 (en) | 1981-07-07 | 1981-07-07 | INTERLOCKING CONNECTION MEMBERS FOR FRAMES, IN PARTICULAR FRAMES FOR REINFORCED CONCRETE FORMWORK. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1170473A true CA1170473A (en) | 1984-07-10 |
Family
ID=11200517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000399854A Expired CA1170473A (en) | 1981-07-07 | 1982-03-30 | Groove and tongue connecting assembly for frames, in particular for frames for reinforced concrete forms |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE893775A (en) |
| CA (1) | CA1170473A (en) |
| CH (1) | CH651348A5 (en) |
| DE (1) | DE3217086A1 (en) |
| ES (1) | ES273518Y (en) |
| FR (1) | FR2509350A1 (en) |
| IT (1) | IT8122796A0 (en) |
| NL (1) | NL8201442A (en) |
| PT (1) | PT75194B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1172928B (en) * | 1983-12-28 | 1987-06-18 | Alpi Casseforme Spa | ALIGNMENT AND TIGHTENING KEY |
| DE102008064551B4 (en) * | 2008-12-31 | 2013-01-10 | Hans Peter Jung | Connecting device for formwork panels |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2415856C3 (en) * | 1974-04-02 | 1981-10-01 | Noe-Schaltechnik, Georg Meyer-Keller KG, 7334 Süßen | Wedge connection for two formwork panels or the like. |
| FR2274202A7 (en) * | 1974-05-14 | 1976-01-02 | Abate Robert | Connecting piece for shuttering - two U-shaped sections with V-shaped branch pieces and bolt |
| DE2716864A1 (en) * | 1977-04-16 | 1978-10-19 | Gerhard Dingler | Formwork vertical member clamp - has two bent arms with key through overlap and other ends locking into locating grooves |
| DE2924777C2 (en) * | 1979-06-20 | 1986-09-11 | Peri-Werk Artur Schwörer GmbH & Co KG, 7912 Weißenhorn | Formwork panel for concrete walls with wedge connections |
-
1981
- 1981-07-07 IT IT8122796A patent/IT8122796A0/en unknown
-
1982
- 1982-03-30 CA CA000399854A patent/CA1170473A/en not_active Expired
- 1982-04-05 NL NL8201442A patent/NL8201442A/en not_active Application Discontinuation
- 1982-04-15 ES ES1982273518U patent/ES273518Y/en not_active Expired
- 1982-05-07 DE DE19823217086 patent/DE3217086A1/en not_active Ceased
- 1982-05-19 FR FR8208771A patent/FR2509350A1/en active Granted
- 1982-07-06 CH CH4125/82A patent/CH651348A5/en not_active IP Right Cessation
- 1982-07-06 BE BE0/208542A patent/BE893775A/en not_active IP Right Cessation
- 1982-07-06 PT PT75194A patent/PT75194B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH651348A5 (en) | 1985-09-13 |
| ES273518U (en) | 1984-05-01 |
| IT8122796A0 (en) | 1981-07-07 |
| PT75194B (en) | 1984-05-28 |
| PT75194A (en) | 1982-08-01 |
| FR2509350B1 (en) | 1985-01-04 |
| FR2509350A1 (en) | 1983-01-14 |
| NL8201442A (en) | 1983-02-01 |
| ES273518Y (en) | 1984-12-01 |
| BE893775A (en) | 1982-11-03 |
| DE3217086A1 (en) | 1983-01-27 |
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