U.S. patent application number 15/169209 was filed with the patent office on 2016-12-01 for telescopic element for a displaceable partitioning wall.
The applicant listed for this patent is DORMA Deutschland GmbH. Invention is credited to Olaf LUTTMANN.
Application Number | 20160348362 15/169209 |
Document ID | / |
Family ID | 56112837 |
Filed Date | 2016-12-01 |
United States Patent
Application |
20160348362 |
Kind Code |
A1 |
LUTTMANN; Olaf |
December 1, 2016 |
TELESCOPIC ELEMENT FOR A DISPLACEABLE PARTITIONING WALL
Abstract
A telescopic element for a displaceable partitioning wall,
includes a solid wall section for partially covering an opening in
a building structure, and a telescopic section for covering a
manoeuvring gap between the solid wall section and the building
structure, The telescopic element, further includes an adjusting
mechanism for deploying the telescopic section into a covering
position covering the manoeuvring gap and a deployment of sealing
lips of the solid wall section for sealing against the building
structure. The adjusting mechanism includes an input shaft for
receiving an adjusting movement and a distribution gearbox for the
divided transmission of the adjusting movement to an upper
telescopic gearbox and to a lower telescopic gearbox for deploying
of the telescopic section. The two telescopic gearboxes each
include a transmitting section for the transmission of the
adjusting movement to an upper sealing gearbox and to a lower
sealing gearbox, respectively, for deploying the sealing lips.
Inventors: |
LUTTMANN; Olaf; (Ennepetal,
DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
DORMA Deutschland GmbH |
Ennepetal |
|
DE |
|
|
Family ID: |
56112837 |
Appl. No.: |
15/169209 |
Filed: |
May 31, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E04B 1/343 20130101;
E04B 2/827 20130101 |
International
Class: |
E04B 2/82 20060101
E04B002/82; E04B 1/343 20060101 E04B001/343 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 1, 2015 |
DE |
102015108661.1 |
Claims
1. A telescopic element for a displaceable partitioning wall,
including a solid wall section for partially covering an opening in
a building structure, and a telescopic section for covering a
manoeuvring gap between the solid wall section and the building
structure, the telescopic element comprising an adjusting mechanism
for a deployment of the telescopic section into a covering position
covering the manoeuvring gap and for a deployment of sealing lips
of the solid wall section for sealing against the building
structure, wherein the adjusting mechanism includes an input shaft
for receiving an adjusting movement, and a distribution gearbox for
the divided transmission of the adjusting movement to an upper
telescopic gearbox and to a lower telescopic gearbox for the
deployment of the telescopic section, wherein the first two
telescopic gearbox includes a first transmitting section configured
for transmitting the adjusting movement to an upper sealing gearbox
and the second telescopic gearbox includes a second transmitting
section configured for transmitting the adjusting movement to a
lower sealing gearbox for deploying the sealing.
2. The telescopic element according to claim 1, wherein the first
telescopic gearbox and the second telescopic gearbox each includes
a telescopic spindle entrained into a rotation by means of the
adjusting movement such that a spindle nut moves along the spindle
axis, wherein the spindle nut is connected to a telescopic lever in
a force-transmitting manner for moving said telescopic lever at a
first end concurrently with the spindle nut and for deploying the
telescopic section attached to a second end of the telescopic
lever.
3. The telescopic element according to claim 2, wherein at both
first and second telescopic gearboxes, the spindle nut is connected
in a force-transferring manner to the telescopic lever via a
spindle spring element.
4. The telescopic element according to claim 2, wherein between the
two ends of each of the telescopic levers, a support lever is
attached, which supports the telescopic lever against the solid
wall section.
5. The telescopic element according to claim 1, wherein each
transmitting section of the first and second telescopic gearboxes
includes a contacting surface for a touching contact of a
counter-contacting surface of the associated sealing gearbox.
6. The telescopic element according to claim 5, wherein in a
retracted position of the telescopic section, between the
contacting surface and the counter-contacting surface, a contacting
distance is configured wherein the dimension is varied by means of
introducing the adjusting movement into the adjusting
mechanism.
7. The telescopic element according to claim 1, wherein each
sealing gearbox includes a spindle spring element configured for
receiving the adjusting movement from the transmitting section of
the associated telescopic gearbox and charges the associated
sealing lip with a spring force.
8. The telescopic element according to claim 1, wherein the
distribution gearbox is configured as an angled gearbox for
distributing the adjusting movement with different directions of
movement, onto the two telescopic gearboxes.
9. The telescopic element according to claim 1, wherein one of the
first and second telescopic gearboxes is disposed above the other
at a border of the solid wall section.
10. The telescopic element according to claim 1, wherein the
sealing lips each include at least two overlapping sealing lip
sections, wherein one of the two sealing lip sections is connected
to the telescopic section and the other is connected to the solid
wall section.
11. The telescopic element according to claim 1, wherein the
adjusting mechanism includes a drive device generating the
adjusting movement and the introduction into the input shaft.
12. A method for the arrangement of a telescopic element having the
features of claim 1 in an opening of a building structure, the
method includes the following steps: arranging the solid wall
section in the final position, introducing an adjusting movement
into the input shaft of the adjusting mechanism for deploying the
telescopic section into the covering position, and continuing
introduction of the adjusting movement into the input shaft for
deploying the sealing lips for a sealing action against the
building structure.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is related to and claims the benefit of
German Patent Application No. DE 102015108661.1, filed on Jun. 1,
2015, the contents of which are herein incorporated by reference in
their entirety.
TECHNICAL FIELD
[0002] The present disclosure relates to a telescopic element for a
displaceable partitioning wall as well as to a method for the
disposition of such a telescopic element in an opening of a
building structure.
BACKGROUND
[0003] It is generally known to close large openings in building
structures temporarily by means of partitioning walls. This
arrangement is for example the case in large conference rooms,
which may be subdivided into smaller units by means of displaceable
partitioning walls. Usually, such partitioning walls include
individual wall profiles, which may be displaced into the desired
covering position by means of track systems. In this case, the last
partitioning wall element, which forms the termination towards the
associated building structure, is usually equipped at higher
expense. For example a manoeuvring gap needs to be maintained for
moving the last partitioning wall element into the final position
thereof. So that nevertheless a complete termination to the
building structure may be provided, usually, such final
partitioning wall elements are configured as telescopic elements.
Therefore, they include a solid wall section, which essentially may
be configured identical or similar to the other partitioning wall
elements. However, they are equipped additionally with the
functionality of a telescopic section, which, according to the
arrangement in the final position, may be moved into an appropriate
covering position, in which the manoeuvring gap is likewise
covered.
[0004] The known solutions are disadvantageous in that a high
mechanical expense is required in order to be able to provide for
an adjustment movement for deploying the telescopic section as well
as for being able to guarantee for deploying sealing lips at the
top side and the bottom side of the telescopic element. In this
case, complicated scissor-arm mechanisms are employed, which
perform said deployment movement, respectively transmit an
appropriate adjusting movement to the desired positions. This
circumstance results in that the interior space of such a solid
wall section of the telescopic element is usually filled with the
complicated adjusting mechanism. On the one hand, this arrangement
reduces visual freedom, because in particular transparent
telescopic elements will not be feasible. Moreover, the high
complexity results in an increase in weight and in an increase of
the risk of malfunctioning, because a complicated mechanism may
have defects at the most different locations.
[0005] Therefore, the present disclosure overcomes the
above-described disadvantages at least partially. The present
disclosure further develops the adjusting mechanism in an
inexpensive and simple manner.
SUMMARY
[0006] The above problem is solved by providing a telescopic
element for a displaceable partitioning wall, including a solid
wall section for partially covering an opening in a building
structure, and a telescopic section for covering a manoeuvring gap
between the solid wall section and the building structure. The
telescopic element includes an adjusting mechanism for a deployment
of the telescopic section into a covering position covering the
manoeuvring gap and for a deployment of sealing lips of the solid
wall section for sealing against the building structure, wherein
the adjusting mechanism includes an input shaft for receiving an
adjusting movement, and a distribution gearbox for the divided
transmission of the adjusting movement to upper and lower
telescopic gearboxes for the deployment of the telescopic section,
wherein the two telescopic gearboxes include a first transmitting
section configured for transmitting the adjusting movement to an
upper sealing gearbox and the second telescopic gearbox includes a
second transmitting section configured for transmitting the
adjusting movement to a lower sealing gearbox for deploying the
sealing lips.
[0007] The above problem is also solved by providing a method for
arranging a telescopic element including the following steps:
arranging the solid wall section in the final position; introducing
an adjusting movement into the input shaft of the adjusting
mechanism for deploying the telescopic section into the covering
position; and continuing introduction of the adjusting movement
into the input shaft for deploying the sealing lips for a sealing
action against the building structure. Features and details,
described in conjunction with the telescopic element, are obviously
also valid in conjunction with the inventive method and
respectively vice versa, such that mutual reference is made,
respectively may be made with respect to the disclosure of
individual aspects of the disclosure.
[0008] According to the disclosure, a telescopic element is
provided for a displaceable partitioning wall. Said telescopic
element includes a solid wall section for partially covering an
opening in a building structure. Furthermore, a telescopic section
is provided for covering a manoeuvring gap between the solid wall
section and the building structure. Moreover, the telescopic
element includes an adjusting mechanism for deploying a telescopic
section into a covering position, in which the manoeuvring gap is
covered, and for a deployment of sealing lips of the solid wall
section for a sealing action against the building structure. The
inventive telescopic element is distinguished in that the adjusting
mechanism includes an input shaft for the reception of an adjusting
movement and a distribution gearbox for the divided transmission of
the adjusting movement to an upper telescopic gearbox and a lower
telescopic gearbox for deploying the telescopic section. In this
case, the two telescopic gearboxes include respectively one
transmitting section for the transmission of the adjusting movement
to an upper sealing gearbox and to a lower sealing gearbox for
deploying the sealing lips.
[0009] The inventive telescopic element is thus based on the basic
embodiment of a solid wall section and a telescopic section for
allowing to be able to guarantee the desired positioning into a
final terminal position in the vicinity of a wall of a building
structure. With the intention to cover the manoeuvring gap, the
adjusting mechanism provides a possibility to displace the
telescopic section into a covering position, in which the
manoeuvring gap is covered. The sealing lips are disposed in
particular at the top side and at the bottom side of the telescopic
element, so as to be able to guarantee a sealing action likewise
against the ceiling and the floor in the final position of the
telescopic element. Deploying and retracting is necessary in order
to be able to keep the telescopic element movable in a desired
manner, for example by means of a track system. Only once the
telescopic element is disposed in the final position thereof, the
sealing lips are deployed and accordingly an additional sealing
action against the building structure is provided.
[0010] to An inventive core idea focuses on the explicit embodiment
of the adjusting mechanism. In contrast to the complex scissor-arm
mechanism, as included in the known telescopic elements, in a
simple and inexpensive manner, a single input shaft is able to
provide for a corresponding reception of the adjusting movement. By
means of the distribution gearbox, which may include gearing wheels
but also lever structures, a division and transmission of the
adjusting movement to the upper and the lower telescopic gearboxes
may be provided. In this case, with regard to their arrangement, an
upper and lower telescopic gearbox are positioned one above the
other. The upper telescopic gearbox is located above the lower
telescopic gearbox. The function of the two telescopic gearboxes
serves for deploying the telescopic section into the covering
position thereof. As long as in this application it is question of
deploying sealing lips or telescopic sections, this obviously also
applies as a reversible movement such that the same mechanism and a
reversal of the adjusting movement allows for retracting the
sealing lips, respectively for retracting the telescopic section in
the same technical manner.
[0011] According to the disclosure, the two telescopic gearboxes
are equipped with an additional function, namely the transmitting
section for transmitting the adjusting movement. In the solid wall
element, respectively partially also in the telescopic element, the
upper sealing gearbox and the lower sealing gearbox are configured
to be able to deploy the upper sealing lip and the lower sealing
lip for a sealing action against the ceiling or against the floor.
In contrast to the known solutions of the telescopic elements,
which essentially operate all of the gearboxes at the same time via
complicated scissor-arm mechanisms, in an inventive manner the
transmission of the adjusting movement to the sealing gearboxes is
enabled via the telescopic gearbox itself. In other words, the
upper telescopic gearbox and the upper sealing gearbox,
respectively the lower telescopic gearbox and the lower sealing
gearbox are configured as cascades of gears. Therefore, the
adjusting movement for the sealing lips passes through the
respective telescopic gearbox only to arrive in the respective
sealing gearbox.
[0012] In an inventive telescopic element, the arrangement into the
final position is realized in a way that an adjusting movement is
introduced into the input shaft in a manual or automated
configuration. In this case, it may be in particular a rotary
movement, namely a rotation.
[0013] Said adjusting movement is then transferred to the upper and
lower telescopic gearboxes such that the deployment of the
telescopic section starts. As will be explained in the following,
the transmitting section is preferably configured for a mechanical
closure sequence control such that during the introduction of the
adjusting movement, the latter is transferred in the first time
slot essentially exclusively to the two telescopic gearboxes. Only
after the telescopic section has been deployed over a defined path
via the telescopic gearboxes, the transmitting section will be
activated for the transmission of the adjusting movement to the two
sealing gearboxes. Thus, so to say, a closure sequence control is
mechanically provided, which ensures that only after completing the
deployment movement of the telescopic section, the start of the
deployment movement of the sealing lips is realized. In particular,
if the sealing lips are to be disposed partially in the solid wall
section and partially in the telescopic section, this is a great
advantage, because during the movement of the telescopic section,
the sealing lips may not yet be in contact, respectively should not
yet be in contact.
[0014] It may be advantageous, if, in an inventive telescopic
element, each telescopic gearbox includes a telescopic spindle,
which is entrained into rotation by means of an adjusting movement,
such that a spindle nut moves along the spindle axis. In this case,
the spindle nut is connected in a force-transmitting manner to a
telescopic lever, in order to move this telescopic lever at a first
end concurrently with the spindle nut. To the same extent, by means
of the movement of the telescopic lever, the telescopic section,
which is attached to the second end thereof, is deployed. By
arranging the two telescopic gearboxes in a vertical direction
spaced apart from each other as upper and lower telescopic
gearboxes, in this manner a particularly stable deployment movement
is allowed. The larger the distance is formed between the two
telescopic gearboxes in vertical direction, the larger the tilt
stability when deploying the telescopic section. In contrast to the
known solutions of combined scissor-arm mechanisms, in an execution
according to this embodiment, additional guiding means in the shape
of tubes or other guiding rails may be essentially completely
foregone. However, it should be noted in this case that the
force-transmitting connection between the spindle nut and the
telescopic lever may be configured both directly and indirectly. An
indirect connection is in particular understood as inserting a
spring element in between, as will be elaborated further in the
following section.
[0015] It is advantageous, if, in an inventive telescopic element,
in both telescopic gearboxes, the spindle nut is connected in a
force-transmitting manner to the telescopic lever via a spindle
spring element. This means namely, that it is question here of an
indirect connection between the telescopic lever and the spindle
nut. Such a spindle spring element may be configured for example as
a helical spring around the spindle. This circumstance results in
that, when introducing an adjusting movement onto the telescopic
section without a counter-force, the deployment movement will be
performed in the known manner. As soon as the telescopic section
abuts against a walling of the building structure and contacts the
latter, a corresponding counter-force is created, which will be
introduced into the spindle spring element. This means that the
spindle spring element generates a pre-tensioning force in this
manner, which will allow for providing a sealing force onto the
telescopic section at the corresponding contacting location towards
the walling of the building structure.
[0016] It is likewise an advantage, if, in an inventive telescopic
element, a support lever is attached between the two ends of each
telescopic lever, which lever supports the telescopic lever against
the solid wall section. All levers are equipped at their respective
ends with rotation bearings in order not to adversely affect the
desired lever functionalities. The support lever serves for being
able to provide an additional stabilization of the telescopic
lever. In particular in this manner the risk of spreading of the
telescopic lever during the deployment procedure will be reduced or
even completely avoided.
[0017] Moreover, it is advantageous if, in an inventive telescopic
element, each transmitting section of the two telescopic gearboxes
includes a contacting surface for a touching contact with a
counter-contacting surface of the associated sealing gearbox. This
represents a particularly simple and inexpensive solution for
providing the transmitting functionality. The contacting surface
touches the counter-contacting surface and in this manner continues
to move the counter-contacting surface concurrently with the
contacting surface by means of the adjusting movement. In this
case, such a touching contacting action is configured in a
reversible manner according to the disclosure. In particular
releasing and establishing the contact, depending on the movement
position and the movement direction, are conceivable. In this case,
the contacting surface and the counter-contacting surface include
in particular a two-dimensional contacting in order to be able to
guarantee an improved and moreover a more tilt-stable transmission
of forces, respectively transmission of the adjusting movement.
[0018] It is likewise advantageous, if, in an inventive telescopic
element, in a retracted position of the telescopic section, a
contacting distance is configured between the contacting surface
and the counter-contacting surface, the dimension thereof being
variable by means of introducing the adjusting movement into the
adjusting mechanism. As elaborated in the preceding section, the
contacting between the contacting surface and the
counter-contacting surface is in particular configured to be
reversible. For example in a completely retracted position of the
telescopic section, a defined contacting section may be given
between the contacting surface and the counter-contacting surface.
If now the introduction of the adjusting movement is realized, at
the same time a deployment of the telescopic section and a movement
of the contacting surface and of the counter-contacting surface
towards each other occur. The contacting distance will now adjust
at what time in positioning the contacting surface and the
counter-contacting surface will touch each other. This will be in
particular the case, if the telescopic section is completely or
essentially completely deployed. At this point in time, now a
further movement of the telescopic gearbox will result in that,
additionally respectively subsequently to deploying the telescopic
section, now to the transmission of the adjusting movement to the
sealing gearboxes for deploying the sealing lips will be realized.
This represents one possibility for providing a mechanical
automatic closure sequence control.
[0019] It is likewise advantageous, if, in an inventive telescopic
element, each sealing gearbox includes a sealing spring element,
which is configured for the reception of the adjusting movement
from the transmitting section of the associated telescopic gearbox
and charges the associated sealing lip with a spring force. In this
case, said sealing spring element also serves for transmitting the
adjusting movement to the sealing lip for the deployment procedure
thereof. The sealing spring element serves for providing a
pre-tension onto the respective sealing lip, in particular as soon
as the sealing lip abuts against the corresponding walling,
respectively the ceiling or the floor of the building structure. In
this case, the sealing spring element may directly or indirectly
include an associated counter-contacting section for the
correlation with a contacting section of the transmitting section.
Furthermore, the sealing spring element is preferably equipped with
a variation device, in order to be able to vary and adjust the
spring force and/or the contacting section already described above.
This is in particular solved via an adjusting screw. The sealing
spring element may be preferably configured with regard to reducing
the constructional dimension and the weight of a leaf spring.
[0020] It is furthermore advantageous, if, in an inventive
telescopic element, the distribution gearbox is configured as an
angled gearbox for a repartition of the adjusting movement with
different directions of movement, in particular different
directions of rotation, to the two telescopic gearboxes. In this
case, an angled gearbox is understood in that the repartition will
not only be realized with regard to the transfer of an adjusting
movement to two recipients of the adjusting movement, but will
moreover be able to consider in this manner different directions of
movement during the repartition. Thus, the upper telescopic gearbox
will receive, with regard to a direction of rotation, for example a
left turn as an adjusting movement, whereas the lower telescopic
gearbox will receive for example a right turn as the direction of
rotation as the adjusting movement. The two telescopic gearboxes
are thus allowed, in particular for corresponding telescopic
spindles, to have the same mechanical configuration, for example in
the form of having the same thread orientation and thread pitch.
Furthermore, this results in that during the mounting procedure of
the entire telescopic element, a source of errors, namely an
erroneously oriented telescopic spindle is essentially completely
prevented.
[0021] Another advantage may be, if, in an inventive telescopic
element, the two telescopic gearboxes are disposed one above the
other at a border of the solid wall section. This arrangement is
only possible by means of the inventive embodiment, because only
the repartition and the cascaded arrangement of the telescopic
gearboxes and of the sealing gearboxes with regard to each other
allows for a narrower embodiment of the adjusting mechanism. In
this case, the border of the solid wall section includes in
particular of the border, at which also the telescopic section is
to be deployed. As a result, the central region of the solid wall
section remains free and may be configured to be transparent as
well.
[0022] It is likewise advantageous, if, in an inventive telescopic
element, the to sealing lips include respectively at least two
overlapping sealing lip sections, wherein one of the two sealing
lip sections is connected to the telescopic section and the other
one is connected to the solid wall section. Such a sealing lip may
be configured as a telescoping sealing lip as well, such that, when
deploying the telescopic section, said overlapping decreases with
regard to their geometrical deployment and also the sealing effect
in the deployed condition of the telescopic section may be provided
at the entire upper side of the telescopic element and at the lower
side of the telescopic element.
[0023] Another advantage may be, if, in an inventive telescopic
element, the adjusting mechanism includes a drive device for
generating the adjusting movement and the introduction into the
input shaft. This means that an automated adjusting movement is
provided, in particular in the form of an electric motor. Thus, it
is an automated solution, which, for said automatic drive, may have
provided for example for a battery or a power supply within the
telescopic element. As an alternative, also crank handles at the
exterior side are conceivable for a corresponding crank handle
connection for introducing the adjusting movement within the
framework of the present disclosure.
[0024] A further subject matter of the present disclosure is a
method for the arrangement of an inventive telescopic element in an
opening of a building structure, including the following steps:
[0025] arranging the solid wall section in the final position,
[0026] introducing an adjusting movement into the input shaft of
the adjusting mechanism for deploying the telescopic section into
the covering position, [0027] continuing the introduction of the
adjusting movement into the input shaft for deploying the sealing
lips for a sealing action against the building structure.
[0028] By employing an inventive telescopic element, the inventive
method offers the same advantages as those explained in detail in
relation to the inventive telescopic element.
BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Further advantages, features and details of the disclosure
will result from the following description, in which, reference
being made to the drawings, exemplary embodiments of the disclosure
are described in detail.
[0030] In the drawings:
[0031] FIG. 1 shows an embodiment of a telescopic element,
[0032] FIG. 2 shows the embodiment of FIG. 1 in an enlarged
representation,
[0033] FIG. 3 shows a telescopic gearbox in the embodiment of FIGS.
1 and 2, and
[0034] FIG. 4 shows the correlation between a telescopic gearbox
and a sealing gearbox in the embodiment of FIGS. 1 and 2.
DETAILED DESCRIPTION OF THE DRAWINGS
[0035] FIGS. 1 and 2 show a technical solution of an embodiment of
an inventive telescopic element 10 with an opened walling.
Therefore, just a view into the inside of the telescopic element 10
is possible. Basically, the telescopic element 10 has two core
sections, namely the solid wall section 20 and the telescopic
section 30. Here, the telescopic section 30 is seen as a profile,
to which the corresponding ceiling wall sections may be attached.
Moreover, the illustration in FIG. 1 shows the correlation of such
a telescopic element 10 in the final position thereof with regard
to a building structure 200. In this case, it is well visible that
a manoeuvring gap 210 is formed in the final position between the
solid wall section 20 and the building structure 200. The
telescopic section 30 is to be displaced in the covering position
AP thereof into said manoeuvring gap 210, with the intention to be
able to provide here a fully and in particular sound-absorbing
termination.
[0036] At the same time, deploying the sealing lips at the top side
of the telescopic element 10 and at the bottom side of the
telescopic element 10 is necessary for a particular advantageous
sound-absorption. This is realized by means of associated sealing
gearboxes 70a and 70b.
[0037] FIG. 3 diagrammatically illustrates the configuration of a
telescopic gearbox 60b or of the upper telescopic gearbox 60a. The
two telescopic gearboxes 60a and 60b are in particular configured
to be identical. FIG. 4 shows the correlation of the upper
telescopic gearbox 60a with the upper sealing gearbox 70a. For a
better understanding, the individual movement of the respective
structural components with regard to performing the deployment
procedure will be subsequently explained while referring to all
four Figures.
[0038] to Once the telescopic element 10 is disposed in the final
position thereof for the partitioning wall 100, as the one shown in
FIG. 1, now the deployment of the telescopic element 30 into the
covering position AP thereof is to be performed. For this purpose,
an adjusting movement is being introduced via an input shaft 42
into a distribution gearbox 44 of an adjusting mechanism 40. This
action may be realized via a drive device or manually by means of a
crank handle. Now, said distribution gearbox 44 distributes the
adjusting movement to the top and to the bottom into an upper
telescopic gearbox 60a and into a lower telescopic gearbox 60b.
Telescopic spindles 64, in which the adjusting movement is
translated into a rotation about a spindle axis SA, are provided in
both telescopic gearboxes 60a and 60b. Accordingly, a relative
rotation with regard to the respective spindle nut 66 is performed
during said rotation such that depending on the rotational
movement, the spindle nut 66 moves to the top or to the bottom. For
deploying the telescopic section 30, an upward movement of the
spindle nut 66 is realized at the upper telescopic gearbox 60a and
accordingly a downward movement of the spindle nut 66 is realized
at the lower telescopic gearbox 60b. In this manner, via a spindle
spring 65 in a force-transmitting contacting, the adjusting
movement is relayed to the telescopic lever 68 such that the latter
is moved upwards in an associated oblong hole, which can be seen in
the FIGS. 1, 2 and 4. As said oblong hole is provided as a fixed
position at the solid wall section 20, the other end of the
telescopic lever 68 is pushed to the right hand outside and thereby
displaces the profile, which is a part of the telescopic section
30, to the right hand side into the covering position AP thereof. A
mechanical stabilization is realized during this movement by means
of the associated support lever 69, as the one illustrated in the
Figures.
[0039] In particular FIG. 4 shows that during an upwards movement
of the spindle nut 66 at the upper telescopic gearbox 60a, a
contacting distance KA between a contacting surface 63 of a
transmitting section 62 and an associated counter-contacting
surface 73 of a spindle spring element 75 is reduced. At a
predetermined point in time, a touching contact of the contacting
surface 63 and the counter-contacting surface 73 will occur such
that now via the subsequent lever arm assembly also the upper
sealing lip 50 and in the same manner the lower sealing lip 50 will
be deployed and pressed against the building structure 200. The
respective spindle spring element 75 serves for being able to
guarantee an appropriate contacting pressure for increasing the
sealing force. In the embodiment as shown in the FIGS. 1 to 4, the
sealing lip 50 is configured in two parts in the shape of two
sealing lip sections 52. These are disposed in a telescoping manner
such that, when deploying the telescopic section 30, a moving apart
in a telescopic manner is performed for the two sealing lip
sections 52, such that, also in the covering position AP of the
telescopic section 30, it will be possible to seal the entire upper
part and the entire lower part of the telescopic element 10.
[0040] The above explanation of the embodiment describes the
present disclosure exclusively based on examples. Obviously,
individual features of the embodiments, as long as they are
technically reasonable, may be freely combined with each other
without departing from the scope of the present disclosure.
* * * * *