Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
CA 03228151 2024-02-02
CONNECTING COMPONENT AND SYSTEM FOR SHUTTERING A WALL
ELEMENT
[0001] The present application claims the priority of German patent
application 10
2021 120 438.0 and the priority of German patent application No. 10 2021 120
441.0, the content of which is completely incorporated herein by way of
reference.
[0002] The invention relates to a connecting component having a shuttering
interface for releasable connection to a frame of a formwork panel.
[0003] The invention also relates to a system for shuttering a wall element,
comprising at least one formwork panel and at least one connecting component.
[0004] The invention relates to the field of construction. When erecting or
remodeling buildings, building parts are often molded by casting concrete. The
shape of these cast building parts is predetermined by formwork, wherein the
formwork is erected on the construction site before casting. In particular,
ceilings or walls of a building are erected with the aid of formwork. In the
production of high walls or wall elements, a scaffold is required in order to
be
able to prepare the shuttering for the production of the wall element. A
scaffold
is required on the one hand to connect individual formwork panels to one
another to form the overall formwork, for example by attaching formwork locks.
Furthermore, two mutually opposite formwork panels have to be connected to
one another by anchors before the production of a wall element in order to
absorb the outward pressure of the cast concrete material. For this purpose,
the formwork panels must be reachable over their entire height to workers,
which is usually accomplished place by a scaffold or by a working platform.
[0005] In most cases before the production of the wall element, reinforcement
must be attached to an already positioned formwork panel or between such a
formwork panel and closing formwork which is opposite the formwork panel.
According to the prior art, scaffold or working platforms which are provided
for
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attaching formwork locks are arranged on the shuttering so that no
reinforcement can be attached from these scaffolds or working platforms. The
locations at which the reinforcement must be positioned are simply not
reachable from these scaffolds or working platforms which serve to prepare
the formwork panels, since they are located on the opposite side of the
formwork panel. In practice, this means that a first type of framework is
required for operating the formwork, and a second type of scaffold is required
for positioning and introducing the reinforcement into the formwork. In
addition,
a plurality of different types of scaffolds and formwork panels usually exist
on
the construction site, whereby it is often not possible to connect the
scaffold to
the formwork panels, especially for the applications described above.
Differences in the grid, which exist between the scaffolding systems and the
formwork systems, usually prove to be problematic. Finally, in many
applications after the casting of a wall element with the aid of the formwork,
work still needs to be done on the wall element after removal of the formwork,
for example the filling of anchor holes or also plastering or paint work. In
order
to be able to reach the wall element over its entire height, a scaffold or a
working platform is thus again required after the actual casting in order to
be
able to perform final work. Furthermore, it is also necessary to provide the
formwork panels with push-pull props. For the production of a wall element
with the aid of a formwork, a plurality of different scaffolds or working
platforms
are thus required, which leads to complicated work processes and a need for
a plurality of different scaffold elements.
[0006] The object of the present invention is therefore to simplify the
production
of a wall element, in particular to enable a flexible, universal and/or secure
fastening of scaffolds, platforms and/or supports to formwork panels.
[0007] The object is achieved according to the invention by claim 1.
[0008] According to the invention, a connecting component is proposed having
a shuttering interface for releasably connecting to a frame of a formwork
panel,
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wherein the shuttering interface comprises a first gripping device having at
least one first gripping arm with a clamping jaw and a second gripping device
having at least one second gripping arm with a clamping jaw, wherein the first
gripping arms of the first gripping device are movable in a closing direction
relative to the second gripping arms of the second gripping device in order to
connect the clamping jaws to or release them from the frame, and having at
least one fixture interface for releasably connecting to a fixture, wherein
the
shuttering interface and the fixture interface are actuatable independently of
one another.
[0009] The connecting component according to the invention creates a
combination between a shuttering interface and an fixture interface, by means
of which a plurality of different objects, in particular different types of
scaffolds,
platforms, supports, etc., can advantageously be detachably connected to the
frame of the formwork panel.
[0010] The fixture interface can in particular be connectable to a scaffold
section, in particular a vertical bar of a scaffold, a platform section, a
support,
in particular a push-pull prop, as an fixture. In particular, multiple
fixtures can
also be provided, in particular an fixture interface for a scaffold section
and a
separately formed fixture interface for a support, in particular a push-pull
prop.
[0011] The fixture interface can preferably have a connection clamp for
receiving an fixture. The connection clamp can preferably be connected or
connectable to a vertical bar of a scaffold section in a force-fit.
[0012] The formwork panel to which the connecting component can be
detachably fixed can preferably have a frame to the front of which a formwork
facing is fixable, in particular attachable or mounted. The frame of the
formwork
panel furthermore preferably has multiple longitudinal struts and multiple
cross
struts running parallel to one another. The longitudinal struts and the cross
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struts can be arranged substantially perpendicular to one another or can run
perpendicular to one another.
[0013] In an advantageous embodiment of the frame, which is suitable in
particular for the system defined in claim 16, at least one arch-shaped
bridging
element can be arranged between at least two cross struts running adjacent
to one another. The bridging element can have two end regions, wherein in
each case one of the end regions is fixed to one of the two adjacent cross
struts. In an ergonomically advantageous manner, the curved bridging element
can simplify the handling of the formwork panel. With the aid of the curved
bridging element, the formwork panel can be transported and positioned more
easily. The bridging element can, insofar as this is legally permissible in
the
respective jurisdictions, advantageously also serve as a handhold and/or as a
climbing aid or as a climbing strut, in particular in conjunction with a
scaffold
positioned adjacent to or on the formwork panel. The curved bridging element
can in particular be an arch-shaped handle. The arcuate design of the bridging
element makes it possible in a particularly advantageous manner way for a
worker to grip around the bridging element.
[0014] The shuttering interface can have a locking mechanism in order to
adjust
and/or releasably fix the position of the gripping arms in the closing
direction.
[0015] By means of the locking mechanism, the clamping jaws of the first and
second gripping arms can be connected, for example clamped, to the frame,
in particular to the cross struts and/or the longitudinal struts of the frame.
[0016] The locking mechanism can comprise a wedge, the outer contour of
which preferably at least partially forms a control surface.
[0017] This measure provides a simple, detachable and at the same time
secure locking option.
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[0018] The two gripping devices can each have recesses which at least
partially overlap one another and into which the wedge is insertable or
inserted.
[0019] It is advantageous if the connecting component is designed such that a
movement of the wedge relative to the recesses leads to a closing movement
(in the closing direction) in which the gripping arms move toward one another
relative to one another. It is preferably provided that one of the gripping
devices, preferably the first gripping device, does not move relative to the
frame, but that the closing movement of the gripping devices only results from
the movement of one of the two gripping devices, preferably of the second
gripping device, which thus also moves relative to the frame, for example
orthogonally to a cross strut of the frame on which the connecting component
is to be fixed.
[0020] The wedge can be captively arranged in the recesses, wherein the
wedge preferably has stops projecting beyond the recesses at its front ends to
form the captive securing.
[0021] The captive securing can be designed, for example, in the form of a
dowel pin, a clamping sleeve, a cotter pin of a locking pin, a bolt or the
like.
[0022] The control surface of the wedge can preferably be designed in such a
way that, by moving the wedge into a locking position, the gripping arms of
the
first gripping device and the second gripping device move relative to one
another in the closing direction, and they thus engage with the frame, in
particular with cross struts and/or longitudinal struts of the frame, or
engage in
the frame or are clamped to the frame.
[0023] In a special manner, the control surface of the wedge or the locking
mechanism is suitable, if, as will be shown in more detail below, the frame,
in
particular the cross struts and/or longitudinal struts of the frame, have
grooves,
and the clamping jaws of the gripping arms engage in the grooves.
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[0024] Preferably, the wedge can be brought into its locking position with a
hammer or a similar, suitable tool.
[0025] The first gripping device can preferably have two first gripping arms,
and the second gripping device can have a second gripping arm.
[0026] This allows the connecting component to be stable and fixed to the
frame.
[0027] The gripping arms can run plane-parallel and at a distance from one
another, and the second gripping arm can be arranged in an intermediate
space, preferably centrally, between the two first gripping arms.
[0028] At least one bolt can be present which bridges an intermediate space
between the first gripping arms and is arranged such that it serves as a stop
for a movement of the second gripping arm against the closing movement.
[0029] The bolt can also be provided to connect the two first gripping arms to
one another.
[0030] It is advantageous if the clamping jaws have a projection at their
front
ends, which is designed to engage in grooves of the frame.
[0031] It is advantageous if at least a part of the cross struts and/or of the
longitudinal struts in the upper side and the underside always has at least
one
groove which runs in the longitudinal direction of the cross struts.
[0032] Within the scope of the invention, the "upper side" and the "underside"
of the cross struts (or the longitudinal struts) are also jointly referred to
as side
surfaces.
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[0033] In a cross-section, the profile of the cross struts and/or of the
longitudinal struts can preferably have the shape of a bone or an "H." With
the
aid of the grooves and the connecting component according to the invention,
different scaffolds, platforms and/or supports, in particular push-pull props,
can
be easily and securely fastened to the formwork panel. The connecting
component whose gripping devices or gripping arms are preferably adapted to
the profile can be variably attached to the frame and removed again. In this
way, scaffolds, platforms and/or supports, in particular push-pull props, can
be
very flexibly attached to align the formwork.
[0034] It has proven to be particularly suitable if the grooves extend over
the
entire length of the respective cross strut and/or longitudinal strut. As a
result,
the connecting components can be fixed to the frame particularly
advantageously and flexibly.
[0035] Viewed in a cross-section of the respective longitudinal strut and/or
cross strut, the grooves can be arranged axially symmetrically relative to one
another and/or be arranged opposite one another and have at least
approximately the same shape as viewed in a cross-section.
[0036] By engaging the clamping jaws in the grooves, a stable force-fit and
form-fit connection can be created between the connecting component and the
longitudinal struts and/or cross struts of the frame of the formwork panel.
[0037] The clamping jaws are preferably designed complementary in shape to
the grooves in the longitudinal and cross struts of the formwork panel.
[0038] The relative position between the connecting component and the
formwork panel can be designed to be smoothly adjustable in a direction
parallel to the running direction of the grooves in the longitudinal struts
and/or
cross struts.
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[0039] The connecting component can be used particularly advantageously,
since the connecting component, in particular with the aid of the grooves, in
particular along the cross struts of the frame, can be attached to the frame
at
a suitable horizontal (or also vertical) position. In addition, the position
between
the shuttering interface and the fixture interface can also be designed to be
adjustable. On the other hand, a connection part formed at the fixture
interface,
e.g., a connecting clamp of the fixture interface, can be designed to be
smoothly adjustable in its position relative to a scaffold section, e.g., a
vertical
bar. The connecting component thus enables an adaptation of the position
between the formwork panel and the scaffold section or a push-pull prop in two
spatial directions oriented perpendicular to one another.
[0040] With the aid of the grooves, the connecting component can be captively
secured on the longitudinal and/or cross struts of the frame of the formwork
panel.
[0041] It is advantageous if the grooves run off-center in the upper sides and
the
lower sides of the particular cross struts and/or longitudinal struts in such
a way
that the grooves run closer at a rear side of the frame than at the front
side.
[0042] Preferably, the grooves run in the upper side and the underside at a
constant or uniform distance from the edges of the upper side or the underside
of the cross strut or the longitudinal strut.
[0043] The grooves preferably run off-center in the upper side or the
underside
of the cross struts and/or longitudinal struts in such a way that the grooves
have
a greater distance from a front edge of the strut in which the upper side or
the
underside adjoins the front side of the frame or the formwork facing than the
respective rear edge of the strut which adjoins the rear side of the frame.
Due
to the fact that the grooves run off-center in such a way, the connecting
component can be fixed or clamped in the grooves particularly advantageously.
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[0044] It is also advantageous if the cross struts have holes at a distance
from
the grooves in the upper side and/or the underside, which preferably serve to
drain liquids, for example rainwater.
[0045] It has been found to be advantageous if side walls or the flanks of the
respective grooves are inclined outwards from a groove base of the respective
grooves, wherein the side walls can preferably enclose an angle of 95 to 125
,
in particular 110 , with the groove base.
[0046] The grooves can preferably have a depth of 9 mm to 16 mm, preferably
of 13 mm.
[0047] The aforementioned values have proven to be particularly suitable for
fixing the connecting component. Due to this geometry, the connecting
components can be fixed in the grooves particularly easily and without
twisting,
preferably by clamping.
[0048] The optional design of one or more bridging elements has proven to be
particularly advantageous in connection with cross struts which, in the upper
side and the underside, each have at least one groove which run in the
longitudinal direction of the cross struts, in particular as described above.
In
particular in a particularly advantageous embodiment of the cross struts with
grooves which run off-center in such a way that the grooves have a greater
distance from a front edge of the cross strut, the arched profile of the
bridging
element is particularly suitable. Due to the arched profile of the bridging
element, it is possible to fix the bridging element in a section of the upper
side
or the underside of the cross struts which do not have a groove. These
sections
adjoin the front side of the frame. A design of the bridging element with a
linear
profile would have the disadvantage that a worker's hand would not be able to
grip the bridging element appropriately or easily due to its spatial proximity
to
the front side of the frame and therefore also to the formwork facing. This
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problem is solved in an advantageous manner by the arched design of the
bridging element.
[0049] It can be advantageous if the frame has two outer frame cross struts
and
two outer frame longitudinal struts, between which inner cross struts are
arranged.
[0050] It can be provided that the at least one bridging element is arranged
between two of the inner cross struts. It has proven to be particularly
suitable
if the bridging element is arranged between two of the inner cross struts. In
particular if the bridging element serves as a handle or as an climbing aid,
such
a positioning is advantageous.
[0051] It can be provided that all inner cross struts have the grooves and the
outer frame cross struts do not have any grooves. It has been found to be
sufficient if all inner cross struts have grooves. The additional formation of
grooves also on the outer frame cross struts can therefore also be omitted for
cost reasons.
[0052] The shuttering interface and at least one of the fixtures interfaces
can
be detachably connected to one another, wherein the shuttering interface and
the fixture interface preferably each have a contact surface with an elongated
hole, and wherein a fastening element can be introduced through the
elongated holes in order to releasably connect the contact surfaces to one
another.
[0053] The fastening element can preferably be designed in the form of a
double T. An advantageous and preferably releasable coupling of the
shuttering interface and the fixture interface is thereby achieved.
[0054] The form-fit connection between the shuttering interface and the
fixture
interface with the aid of the fastening element can preferably take place in
that
the fastening element is inserted into the elongated holes in an orientation
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aligned with the elongated holes and is then rotated by preferably 90 degrees,
so that a cross beam of a T rests on the inside against the respective
elongated
hole, and the fastening element is therefore no longer able to be removed from
the elongated holes.
[0055] Alternatively, a connection between the shuttering interface and the
fixture interface can also be produced by a screw connection or other method
familiar to the person skilled in the art.
[0056] The fastening element can be integrally connected to the contact
surface of the fixture interface or the shuttering interface, and/or the
second
gripping arm can have a projection which is designed and arranged such that
a rotation of the fastening element is limited by the projection.
[0057] The integral connection of the fastening element to the fixture
interface
or the shuttering interface can preferably be produced by welding or riveting.
Other connection options are also conceivable here.
[0058] Preferably, the fastening element is integrally connected to the
fixture
interface and is positively connected to the shuttering interface, wherein a
rotation of the fastening element relative to the shuttering interface is
preferably prevented by the projection of the second gripping arm.
[0059] The contact surface of the shuttering interface can be formed by an
angled surface of one of the first gripping arms, and/or the contact surface
of
the fixture interface can be formed by a base of a rail which is U-shaped in
cross section.
[0060] The contact surface of the shuttering interface can preferably be
designed
so that one of the first gripping arms is bent at its end facing away from the
clamping jaw. The contact surface of the shuttering interface, which is used
to
connect the fixture interface, can be formed after of the bend.
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[0061] At least one of the fixtures interfaces can have a bore for fastening a
push-pull prop.
[0062] The bore or the fixture interface for the push-pull support can
preferably
be designed in at least one of the first and/or the second gripping arms.
[0063] Instead of connecting a push-pull support, the bore can also serve, for
example, for fixing tools by means of a carabiner or the like.
[0064] Alternatively to a bore, the fixture interface for the push-pull
support can
also be realized by another fastening option, for example the fixture
interface
can be designed as a hook or angle.
[0065] In claim 16, a system for shuttering a wall element is specified,
comprising at least one formwork panel and at least one connecting
component, wherein the formwork panel has a frame with multiple longitudinal
struts and multiple cross struts, wherein the longitudinal struts and the
cross
struts are arranged substantially perpendicular to one another, wherein at
least
a part of the longitudinal struts and/or of the cross struts has at least two
grooves which run in the longitudinal direction and on opposite side surfaces
of the respective longitudinal strut and/or cross strut, and wherein the
connecting component is a connecting component according to any of claims
Ito 15 and/or one of the embodiments described above, wherein the gripping
arms of the connecting component engage in the at least two grooves of a
respective longitudinal strut and/or cross strut.
[0066] Within the scope of the invention, it can be provided that a cross
strut is
divided by a longitudinal strut into two or more cross strut parts. Such a
multipart cross strut is to be regarded as a cross strut within the scope of
the
invention. This applies in particular if all cross strut parts run axially
parallel to
one another and thus, viewed functionally, form a cross strut.
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[0067] In a particularly advantageous embodiment of the formwork panel, it can
be provided that these have two longitudinal struts which form outer frame
longitudinal struts and, if necessary, an inner longitudinal strut running
centrally
and plane-parallel to the longitudinal frame struts is provided. This inner
longitudinal strut can divide the cross struts into two cross strut parts in
each case.
[0068] Advantageous embodiments and developments of the invention can be
found in the dependent claims.
[0069] Exemplary embodiments of the invention are described in principle
below with reference to the drawings.
[0070] In the drawings:
Fig. 1 shows a perspective partial view of a formwork panel on which multiple
connecting components according to the invention are releasably fixed;
Fig. 2 shows a perspective view of a transverse or longitudinal strut on which
a connecting component according to the invention is fixed;
Fig. 3 shows a side view according to Fig. 2;
Fig. 4a shows a sectional view of a detail of the formwork panel with a
representation of a cross strut with grooves in a first configuration engaging
into the gripping arms of the connecting component;
Fig. 4b shows a sectional view of a detail of the formwork panel with a
representation of a cross strut with grooves in a second configuration
engaging
into the gripping arms of the connecting component;
Fig. 5 shows a perspective view of the connecting component in conjunction
with an fixture in a design as an intermediate bar of a scaffold section;
Fig. 6 shows a perspective view of the connecting component according to Fig.
2 in conjunction with an fixture designed as a push-pull prop;
Fig. 7 shows a perspective view of the connecting component according to Fig.
2 in conjunction with an fixture designed as a scaffold section, in particular
as
a vertical bar;
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Fig. 8 shows a simplified sectional view through a longitudinal or cross strut
of
a frame of a formwork panel with advantageous dimensions which are
particularly suitable for a connection to a connecting component according to
the invention;
Fig. 9 shows a perspective view of a system for shuttering a wall element;
Fig. 10 shows a side view of a system for shuttering a wall element;
Fig. 11 shows a front view of the connecting component in a first embodiment
in the unlocked state;
Fig. 12 shows a sectional view according to the line XII-XII according to Fig.
11;
Fig. 13 shows a front view of the connecting component in the first embodiment
in the closed position;
Fig. 14 shows a sectional view according to the line XIV-XIV according to Fig.
13;
Fig. 15 shows a front view of the connecting component in a second
embodiment in the unlocked state;
Fig. 16 shows a sectional view according to the line XVI-XVI according to Fig.
15;
Fig. 17 shows a front view of the connecting component in the second
embodiment in the closed position;
Fig. 18 shows a sectional view according to the line XVIII-XVIII according to
Fig. 17;
Fig. 19 shows a side view of a wedge;
Fig. 20 shows a perspective view of the wedge according to Fig. 19;
Fig. 21 shows another perspective view of the wedge according to Fig. 19;
Fig. 22 shows a side view of the connecting component in which one of the
first
gripping arms is removed and a projection of the second gripping arm is drawn
in a broken line which can serve as an anti-rotation device for a fastening
element connecting the fixture interface and the shuttering interface;
Fig. 23 shows another view of the connecting component according to Fig. 22;
Fig. 24 shows another view of the connecting component according to Fig. 22;
Fig. 25 shows a side view of the connecting component according to Fig. 22,
in which the second gripping arm is removed as well; and
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Fig. 26 shows a side view of the rear side of the contact surface of the
fixture
interface, wherein a fastening element designed as a double T is inserted into
an elongated hole in the contact surface.
[0071] Functionally identical elements are provided with the same reference
signs in the figures.
[0072] Figure 1 shows a formwork panel 1 which, together with connecting
components 2, form a system 3 for shuttering a wall element (not shown). The
formwork panel 1 has a frame 4 which has multiple cross struts 5 and multiple
longitudinal struts 6, wherein the longitudinal struts 6 and the cross struts
5 are
arranged substantially perpendicular to one another. At least a part of the
longitudinal struts 6 and/or of the cross struts 5 has at least two grooves 7,
8
which run in the longitudinal direction and on opposite side surfaces 9 (or on
the upper side and the underside) of the respective longitudinal strut 6
and/or
cross strut 5. In Figure 1, only the upper side surfaces 9 of the cross struts
5
with the grooves 7 are visible. Only the cross struts 5 are also provided with
the grooves 7. The grooves 8 in the lower side surfaces 9 of the cross struts
5
can be seen in more detail in Figure 2. As shown further in Figure 1, a
scaffold
section 10 with vertical bars 10a and horizontal bars 10b is attached to the
formwork panel 1 by means of the connecting components 2.
[0073] As can also be seen from Figure 1, the formwork panel 1 has a
formwork facing 11 which, when in a state connected to the frame 4, rests on
at least a part of the longitudinal struts 6 and/or the cross struts 5. The
side
surfaces 9 of the respective longitudinal strut 6 and/or cross strut 5 in
which
the grooves 7, 8 are arranged run substantially perpendicular to a front side
of
the frame 4 provided for attaching the formwork facing 11.
[0074] The frame 4 comprises two outer frame cross struts 5a and two outer
frame longitudinal struts 6a, between which the inner cross struts 5 and/or
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inner longitudinal struts 6 are arranged, wherein the inner cross struts 5
have
the grooves 7, 8.
[0075] All inner cross struts 5 and/or all inner longitudinal struts 6 can
have the
grooves 7, 8, and the outer frame cross struts 5a and/or the outer frame
longitudinal struts 6a can preferably have no grooves 7, 8.
[0076] In the present exemplary embodiment, all inner cross struts 5 comprise
the grooves 7, 8.
[0077] Figure 2 shows a cross strut 5 of a formwork panel 1 (not shown in
Figure 2) with a connecting component 2 which engages in the grooves 7, 8 of
the cross strut 5. In another exemplary embodiment, the cross strut 5 could
also be a longitudinal strut 6. Viewed in cross section of the respective
longitudinal strut 6 and/or cross strut 5, the grooves 7, 8 are arranged
axially
symmetrically relative to one another and are arranged opposite one another.
[0078] The grooves 7, 8 can extend at least over a partial length or over the
entire length of the respective longitudinal strut 6 and/or cross strut 5.
[0079]The connecting component 2 has a shuttering interface 200 for
detachably connecting to the frame 4 of the formwork panel 1. The shuttering
interface 200 comprises a first gripping device 210 having at least one first
gripping arm 211 having a clamping jaw 212 and a second gripping device
220 having at least one second gripping arm 221 having a clamping jaw 222
(see Figure 3).
[0080] In the exemplary embodiments (see also Figures 11 to 18 and Figures
22 to 25), the first gripping device 210 has two first gripping arms 211, each
having a clamping jaw 212. The second gripping device 220 has a second
gripping arm 221 which is arranged in an intermediate space between the two
first gripping arms 211.
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[0081] The first gripping arms 211 of the first gripping device 210 are
movable
relative to the second gripping arm 221 of the second gripping device 220 in a
closing direction (indicated by the double arrow R in Figure 3) in order to
connect or release the clamping jaws 212, 222 with the frame 4, in particular
a cross strut 5 or also a longitudinal strut 6 of the frame 2.
[0082] The connecting component 2 furthermore has at least one fixture
interface 300 for detachably connecting to an fixture, in particular the
scaffold
section 10, wherein the shuttering interface 200 and the fixture interface 300
can be operable independently of one another. The mounting of the fixture
interface 300 for attaching the fixture is well known, so that it will not be
discussed in detail. The mounting of the attachment interface 300 for
connection to the scaffold section 10 can in particular be a connecting clamp
or a pipe clamp or the like.
[0083] The at least one attachment interface 300 can be connectable to a
scaffold section 10, a platform section, a support, in particular a push-pull
prop
13 (as explained below) as an fixture.
[0084] The shuttering interface 200 can have a locking mechanism 230 in order
to adjust and/or releasably fix the position of the gripping arms 211, 221 in
the
closing direction R. The locking mechanism 230 can comprise a wedge 231, the
outer contour of which preferably forms at least partially a control surface
232.
[0085] Figure 3 shows a side view of the arrangement from Figure 2. As can
be seen from Figure 3, the grooves 7, 8 of the respective longitudinal strut 6
and/or cross strut 5 have at least approximately the same shape as viewed in
cross section.
[0086] At least one of the gripping arms 211 preferably has a bore 240 for
fastening a push-pull support 13 (see, for example, Figures 6, 9 and 10). In
the
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context of the invention, the bore 240 represents an fixture interface 300 for
connecting in particular the push-pull support 13 or another support. The
fixture
interface 300 designed as a bore 240 can also serve to fix tools by means of
a carabiner or the like. Furthermore, the fixture interface 300 can also be
formed by hooks or angles in one of the gripping arms 211 instead of a bore
240 in one of the gripping arms 211.
[0087] The connecting component 2 shown in the exemplary embodiment
according to Figure 3 thus has two fixtures 300, wherein an fixture interface
300 is provided or designed for connection to a scaffold section 10 and an
fixture interface 300 for connection to a push-pull support 13. Additional
fixture
interfaces 300 or only one of the two fixture interfaces 300 can also be
provided.
[0088] The grooves 7,8 preferably run off-center in the side surfaces 9 of the
respective longitudinal struts 6 and/or cross struts 5.
[0089] As can also be seen in Figure 1, the cross struts 5 have holes 12 in
the
side surfaces 9 that are spaced apart from the grooves 7, 8 for liquid
drainage.
The holes 12 can of course also be present in other exemplary embodiments
in the struts 5, 5a, 6, 6a.
[0090] As can be seen from Figures 2 and 3, the first and second gripping arms
211, 221 of the connecting component 2 are designed to engage in the at least
two grooves 7, 8 of a respective longitudinal strut 6 and/or cross strut 5 of
the
formwork panel 1.
[0091] Figure 4a (and Figure 4b analogously) show a sectional view through a
cross strut 5 of a formwork panel 1. Figure 4a shows greatly simplified the
cross strut 5 which is connected to the shuttering interface 200 of the
connecting component 2 in Figure 3. The cross strut 5 is shown cut in a plane
perpendicular to its longitudinal direction. In the illustration on the left
of the
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cross strut 5, the formwork facing 11, which is connected to the frame 4, can
also be seen in section. The formwork facing 11 rests flat on the side or
front
side of the cross struts 5 facing the left. In the background, a region of
longitudinal strut 6 can be seen which is connected to the strut 5 in section.
In
the illustration, the two gripping arms 211, 221 of the gripping devices 210,
220
of the connecting component 2 can also be seen which are connected to the
cross strut 5 in a force-fit and form-fit. The cross strut 5 is formed by a
profile
tube which has the shape of a bone or an "H." On the side of the cross strut 5
pointing upwards in the illustration and on the side pointing downwards in the
illustration, a groove 7, 8 can be seen in each case, which extends in the
longitudinal direction of the cross strut 5, i.e. into the plane of the
drawing in
the illustration. Here, the grooves 7, 8 have an identical, rectangular cross-
section. The two grooves 7, 8 are arranged symmetrically in the vertical
direction and opposite one another on the cross strut 5. The regions of the
gripping arms 211, 221, which are shown in Figure 4a, are designed
identically.
The two gripping arms 211, 221 have, on their tip facing the left in the
illustration, a projection or a clamping jaw 212, 222 which here forms a
region
which in each case engages in one of the grooves 7, 8. As can be seen, the
clamping jaws 212, 222 have a projection at their front ends which is designed
to engage in the grooves 7, 8 of the frame 4. In the shown embodiment, the
lower of the two gripping arms 221 is designed to be movable in a direction
parallel to the formwork facing 11, whereby the distance between the two
gripping arms 211, 221 is designed to be adjustable. To produce a connection
between the shuttering interface 200 and the formwork panel 1, the lower
gripping arm 221 is moved in the direction symbolized by an arrow in the
illustration or vertically downward in the closing direction R, so that the
distance
between the two clamping jaws 211, 212 is greater than the width of the cross
strut 5 in the vertical direction. Subsequently, the two gripping arms 211,
221
are pushed partially over the cross strut 5 until the clamping jaws 212, 222
are
located adjacent to the two grooves 7, 8. Subsequently, the lower gripping arm
221 is moved toward the upper gripping arm 211, and the distance between
the two gripping arms 211, 221 is reduced. In this case, the two projections
or
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clamping jaws 212, 222 each engage in a groove 7, 8, thereby creating a form
fit. In this state, in which the two clamping jaws 212, 222 already form a
positive-form-fit with the grooves 7, 8, the connecting component 2 can be
displaced parallel to the running direction of the grooves 7, 8 along the
cross
strut 5 until the desired relative position between the connecting component 2
and cross strut 5 is reached. Subsequently, the lower gripping arm 221 is
moved toward the upper gripping arm 211 until the two gripping arms 211,221
clamp the cross strut 5. In this state, a frictional connection is then also
present
between the clamping element or the shuttering interface 200 of the
connecting component 2 and the cross strut 5. The described adjustability of
the relative position of the connecting component 2 along the grooves 7, 8 is
particularly advantageous for a flexible connection between the connecting
component 2 and the formwork panel 1. Such a connection can also be made
between a connecting component 2 and a longitudinal strut 6. In the
background, a groove 7 is also arranged in the shown longitudinal strut 6 and
is aligned with the grooves 7, 8 in the cross strut 5.
[0092] Figure 4b shows an embodiment of the connecting component 1 with a
design of the fixture interface 300 deviating from Figure 2. Only an fixture
interface 300 designed as a bore 240 is shown; an fixture interface 300 for a
scaffold section 10 is not provided, but could however be connected,
preferably
detachably, to the contact surface of the shuttering interface 200 shown in
more detail below.
[0093] Figure 5 shows a perspective detailed view of another embodiment of a
shuttering interface 200 of a connecting component 2. The connecting
component 2 of the embodiment shown in Figure 5 has an intermediate rod 10c
as an fixture interface 300 which is formed by a tube section with a round
cross-
section. The size and shape of the cross section of the pipe section of the
intermediate rod 10c corresponds to the shape and size of a vertical rod 10a
of
the scaffold section 10. The two gripping arms 211, 221 of the shuttering
interface 200 and the locking mechanism 230 are arranged on the intermediate
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rod 10c and are connected to a cross strut 5 of the formwork panel 1 (not
shown
in detail). The scaffold section 10 is connected to the intermediate rod 10c
via a
horizontal rod 10b via a scaffold interface (not shown in detail).
[0094] Figure 6 shows a perspective detailed view of a cross strut 5 into
which a
connecting component 2 is clamped. Furthermore, a push-pull support 13 is
attached to the bore 240 of the gripping arm 211 of the connecting component
2.
[0095] Figure 7 shows a perspective detailed view of a cross strut 5 on which
a scaffold section 10 is connected by means of the connecting component 2.
[0096] Figure 8 shows a simplified sectional view through a longitudinal strut
6
or a cross strut 5 of the frame 4 of the formwork panel 1. The dimensions are
to be understood here purely by way of example and not in a limiting manner
but have, however, proven to be advantageous.
[0097] The side walls 7b, 8b of the respective grooves 7, 8 are inclined
outwardly from a groove base 7a, 8a of the respective grooves 7, 8, wherein
the side walls 7b, 8b preferably enclose an angle of 95 to 125 , in
particular
110 , with the groove base 7a, 8a.
[0098] Furthermore, the grooves 7, 8 can have a depth of 9 mm to 16 mm,
preferably of 13 mm.
[0099] Figure 9 shows a perspective view of a system 3 for shuttering a wall
element. In the exemplary embodiment, the system 3 is composed of three
formwork panels 1, wherein a corresponding system is also to be positioned
opposite to form a receiving space for, for example, concrete, for example as
described in WO 2021/148232 Al.
[0100] Figure 9 is intended to illustrate that the grooves 7, 8 can be used to
attach connecting components 2 to the cross struts 5. The connecting
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components 2 can serve to fix the scaffold section 10 to the formwork panel 1
with vertical bars 10a, a horizontal rod 10b and a tread surface 10d and also
push-pull props 13.
[0101] In the grooves 7, 8, the connecting component 2 can be fixed
continuously along the extension of the grooves 7, 8.
[0102] The grooves 7, 8 and the connecting components 2 enable a scaffold
or a scaffold section 10 to be connected directly to the formwork panel 1.
[0103] Figure 10 shows a side view of a system 3 for shuttering of a wall
element.
[0104] Figure 11 shows a front view of the connecting component 2 in a first
embodiment in the unlocked state.
[0105] Figure 12 shows a sectional view according to the line XII-XII of
Figure 11.
[0106] As can be seen, the two gripping devices 210, 220 each have recesses
233 which at least partially overlap one another and into which the wedge 231
is insertable or inserted. Only the recess 233 in the second gripping device
220 is visible in the figure. The recess 233 of the first gripping device can
be
seen, for example, in Figures 2, 3, 4b, 6 and 7. The wedge 231 can be
arranged in a captive manner in the recesses 233, wherein the wedge 231
preferably has stops 231c, 231d projecting beyond the recesses 233 at each
of its end faces 231a, 231b to form the captive securing (see in particular
also
Figures 2, 3, 6 and 7). As can be seen from Figure 11, the gripping arms 211,
221 run plane-parallel and at a distance from one another, and the second
gripping arm 221 is arranged in an intermediate space 250 between the two
first gripping arms 211. At least one bolt 251 can be present, which bridges
the
intermediate space 250 between the first gripping arms 211 and is arranged
such that it serves as a stop for the second gripping arm 221.
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[0107] Figure 13 shows a front view of the connecting component in the first
embodiment in the closed position.
[0108] Figure 14 shows a sectional view according to line XIV-XIV of Figure
13.
[0109] Figure 15 shows a front view of the connecting component 2 in a second
embodiment in the unlocked state. In this case, no separate fixture interface
300 is provided, but the bore 240 can be used as an fixture interface 300, for
example for fastening a push-pull support 13.
[0110] Figure 16 shows a sectional view according to the line XVI-XVI of
Figure 15.
[0111] Figure 17 shows a front view of the connecting component 2 in the
second embodiment in the closed position.
[0112] Figure 18 shows a sectional view according to the line XVIII-XVIII from
Figure 17.
[0113] In Figures 19 to 21, different views of the wedge 231 are shown. As can
be seen, the wedge 231 or its main surface has different widths to be able to
be introduced or driven in the recesses 233 in a correspondingly fixed and
secured manner in order to be braced.
[0114] Figure 22 shows a side view of the connecting component 2 in which
one of the first gripping arms 211 is removed, and a projection 221a of the
second gripping arm 221 is drawn in a broken line which can serve as an anti-
rotation device for a fastening element 301 connecting the fixture interface
300
and the shuttering interface 200. A contact surface of the fixture interface
300
is provided with the reference sign 302.
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[0115] Figures 23 and 24 show further views of the connecting component 2
according to Figure 22.
[0116] Figure 25 shows a side view of the connecting component 2 according to
Figure 22, in which the second gripping arm 221 is additionally removed as
well.
[0117] The shuttering interface 200 and at least one of the fixture interfaces
300 can be detachably connected to one another, wherein the shuttering
interface 200 and the fixture interface 300 preferably each have a contact
surface 202, 302 with an elongated hole 203, 303 (see also Figures 12 and
14), and wherein the fastening element 301 can be introduced through the
elongated holes 203, 303 in order to releasably connect the contact surfaces
202, 302 to one another.
[0118] The fastening element 301 can be integrally connected to the contact
surface 302 of the fixture interface 300 (for example by welding), and/or the
second gripping arm 221 can have the projection 221a which is designed and
arranged such that a rotation of the fastening element 301 is limited by the
projection 221a.
[0119] The contact surface 202 of the shuttering interface 200 can be formed
by an angled surface of one of the first gripping arms 211, and/or the contact
surface 302 of the fixture interface 300 can be formed as shown in Figure 26
by a base of a rail which is U-shaped in cross section.
[0120] Figure 26 shows a side view of the rear side of the contact surface 302
of the fixture interface 300, wherein the fastening element 301 designed as a
double T is inserted into an elongated hole 303 of the contact surface 302.
[0121] For assembly, the fastening element 301 is inserted through the two
elongated holes 203, 303, then rotated by 90 and welded to the bottom of the
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U-shaped rail to achieve captive securing. In this embodiment, the fastening
element is thus part of the fixture interface 300.
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List of reference signs:
1 Formwork panel
2 Connecting component
3 System
4 Frame
5 Cross strut
5a Frame cross strut
6 Longitudinal strut
6a Frame longitudinal strut
7 Groove
7a Groove bottom
7b Side walls of the groove
8 Groove
8a Groove bottom
8b Side walls of the groove
9 Side surfaces
10 Scaffold section
10a Vertical bar
10b Horizontal bar
10c Intermediate rod
10d Tread surface
11 Formwork facing
12 Holes
13 Push-pull support
200 Formwork interface
202 Contact surface of the shuttering interface
203 Elongated hole
210 First gripping device
211 First gripping arm
212 Clamping jaw
220 Second gripping device
221 Second gripping arm
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221a Projection of the second gripping arm
222 Clamping jaw
230 Locking mechanism
231 Wedge
231a End face of the wedge
231b End face of the wedge
231c Stop
231d Stop
232 Control surface
233 Recess
240 Hole
250 Intermediate space
251 Bolt
300 Fixture interface
301 Fastening element
302 Contact surface of the fixture interface
303 Elongated hole
R Closing direction
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