U.S. patent application number 12/339161 was filed with the patent office on 2009-06-25 for dividing wall element.
This patent application is currently assigned to VS VEREINIGTE SPEZIALMOBELFABRIKEN GMBH & CO. KG. Invention is credited to Peter Neuberger, Reinhard Weber.
Application Number | 20090159363 12/339161 |
Document ID | / |
Family ID | 40379073 |
Filed Date | 2009-06-25 |
United States Patent
Application |
20090159363 |
Kind Code |
A1 |
Weber; Reinhard ; et
al. |
June 25, 2009 |
Dividing Wall Element
Abstract
A partition element has at least one partition body and a frame
construction for accommodating and holding the at least one
partition body. The partition body has a first outer panel in the
form of a microperforated sheet, a first fleece, a sound absorption
device and a second outer panel, which are arranged behind or
adjoining one another in that order in the direction of thickness
of the partition body. The sound absorption device has at least one
sound absorption element having a certain dimension in the
direction of thickness of the partition body, and at least one
cavity or space having a certain dimension in the direction of
thickness of the partition body.
Inventors: |
Weber; Reinhard; (Minden,
DE) ; Neuberger; Peter; (Eichenbuhl, DE) |
Correspondence
Address: |
LERNER GREENBERG STEMER LLP
P O BOX 2480
HOLLYWOOD
FL
33022-2480
US
|
Assignee: |
VS VEREINIGTE SPEZIALMOBELFABRIKEN
GMBH & CO. KG
Tauberbischofsheim
DE
|
Family ID: |
40379073 |
Appl. No.: |
12/339161 |
Filed: |
December 19, 2008 |
Current U.S.
Class: |
181/290 |
Current CPC
Class: |
A47B 83/04 20130101;
E04B 2002/7483 20130101; E04B 2001/8461 20130101; E04B 2/7422
20130101; E04B 2001/848 20130101 |
Class at
Publication: |
181/290 |
International
Class: |
E04B 1/82 20060101
E04B001/82 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 19, 2007 |
DE |
20 2007 017 699.6 |
Claims
1-16. (canceled)
17. A partition element, comprising: at least one partition body
having a thickness extending in a first direction; a frame
construction for accommodating and holding said at least one
partition body; said at least one partition body having a first
outer panel in the form of a microperforated sheet, a first fleece,
a sound absorption device, and a second outer panel being arranged
behind one another in an order as set forth hereinabove in the
first direction of thickness; and said sound absorption device
including at least one sound absorption element having a certain
dimension in the first direction of thickness, and at least one
cavity having a certain dimension in the first direction of
thickness.
18. The partition element according to claim 17, wherein said sound
absorption device comprises two sound absorption elements spaced
apart in the first direction of thickness to form said at least one
cavity.
19. The partition element according to claim 17, wherein said sound
absorption device comprises a sound absorption element spaced apart
from said second outer panel in the first direction of thickness of
the partition body to form said at least one cavity.
20. The partition element according to claim 17, wherein said sound
absorption device includes at least one spacer element to form said
at least one cavity.
21. The partition element according to claim 17, further including
at least one bulkhead element disposed in said at least one cavity
to reduce the transmission of sound through said sound absorption
device.
22. The partition element according to claim 21, wherein said at
least one bulkhead element is selected from one of a substantially
flat bulkhead element, a corrugated bulkhead element, or an angled
bulkhead element.
23. The partition element according to claim 17, wherein said sound
absorption device has a substantially symmetrical structure in the
first direction of thickness.
24. The partition element according to claim 17, wherein said first
fleece is adhesively bonded to said first outer panel.
25. The partition element according to claim 17, wherein said
second outer panel is a microperforated sheet, and further
comprising a second fleece arranged between said sound absorption
device and said second outer panel.
26. The partition element according to claim 25, wherein said
second fleece is adhesively bonded to said second outer panel.
27. The partition element according to claim 17, wherein said at
least one sound absorption element is selected from mineral foam,
mineral fibers, nonwoven fabric, cardboard, foam, felt, melamine
resin foam, or polyester wadding.
28. The partition element according to claim 17, wherein said at
least one sound absorption element is a cartonboard having a
honeycomb grid configuration.
29. The partition element according to claim 17, wherein said at
least one sound absorption element is a cartonboard having a
corrugated configuration.
30. The partition element according to claim 28, wherein said
cartonboard has cavities which are at least partially
interconnected.
31. The partition element according to claim 17, wherein said
partition element further comprises a stand device for supporting
said partition body.
32. The partition element according to claim 17, wherein said
partition element further comprises a fastening device for mounting
said partition element to a furniture item.
33. A partition element comprising: at least one partition body
having a thickness in a first direction; a frame construction for
accommodating and holding said at least one partition body; said
partition body having a first outer panel in the form of a
microperforated sheet, a first fleece, a sound absorption device,
and a second outer panel, being arranged behind one another in the
order set forth hereinabove in the first direction of thickness;
said sound absorption device including at least one sound
absorption element having a certain dimension in the first
direction, and at least one cavity having a certain dimension in
the first direction of thickness; and at least one bulkhead element
being disposed in said at least one cavity for reducing the
transmission of sound through said sound absorption device.
Description
TECHNICAL BACKGROUND
[0001] 1. Field of the Invention
[0002] The present invention relates to a partition element, in
particular a partition element as a visual screen for subdividing
spaces such as open-plan offices, for example.
[0003] 2. Prior Art
[0004] Such partition elements are generally known and usually
comprise at least one partition body and a frame construction for
accommodating and holding the at least one partition body. A number
of partition elements can be combined with or connected to one
another in order, for example, to divide off smaller workspaces in
open-plan offices. In this respect, there are not only autonomous
or mobile partition elements having their own, preferably movable,
stand device but also fixed partition elements which can be mounted
on other furniture items such as desks and chests of drawers.
[0005] In order to be able to ensure that the individual workers in
open-plan offices, for example, have a working environment which is
as disruption-free as possible, there is also an increasing need to
reduce noise-induced disturbances in addition to providing the
visual screening function offered by the conventional
partitions.
[0006] DE 202 16 162 U1 has therefore proposed a partition element
in which the partition body is composed of at least one panel which
is substantially made of a sound-absorbing material. In one
specific embodiment, the partition body of this known partition
element comprises two outer panels, made of soft wood fiber,
paperboard or the like, and an inner panel between the two outer
panels which is produced from corrugated paperboard in such a way
that the corrugated paperboard is folded up a number of times on
itself in the direction of the length of the partition body.
[0007] Furthermore, DE 25 18 955 A1 discloses a partition element
comprising two outer shells and a multilayer mat between the two
outer shells. In this arrangement, the mat is composed of an
air-impermeable and flexible material layer and at least one
sound-absorbing material layer. The sound-absorbing material layer
is preferably made of a material having a high capacity to absorb
sound over a wide range of frequencies, such as, for example,
mineral fiber wool or loose felts made up of metal, plastic or
inorganic fibers.
[0008] DE 26 50 886 C2 describes a sound-absorbing panel which
comprises a pair of facing skins consisting of a thin perforated
metal sheet and a core in the form of a honeycomb grid based on the
principle of a Helmholtz resonator. In addition, the two facing
skins are covered with a layer of a porous, sound-absorbing
material.
[0009] DE 20 2007 007 930 U1 discloses a ceiling or wall element in
the form of a lightweight wooden panel which is substantially
composed of a relatively thin, self-supporting facing layer (for
example aluminum or steel sheet) and a reinforcing layer of
consolidated expanded glass granules, ceramic foam or a similarly
rigid material. An acoustic fleece can additionally be provided
between the facing layer and the reinforcing layer.
[0010] Furthermore, DE 34 02 967 A1 discloses a wall element
comprising a frame construction and a wall body, wherein the wall
body comprises a first perforated panel, a first fleece, a
sound-absorbing layer of felt mats which is held in a frame, a
second fleece and a second perforated panel, which are arranged in
this order in the direction of thickness of the wall body. In
variants of this wall element, it is proposed to provide two
sound-absorbing layers having a sound transmission barrier in
between or, in addition to the one sound-absorbing layer, a
sound-reflecting panel. Even if the sound-absorbing layer of this
wall body itself is formed from a material having cavities, apart
from this layer no further cavity is provided in the direction of
thickness of the wall body.
SUMMARY OF THE INVENTION
[0011] The object on which the present invention is based is to
provide a partition element having good sound-absorbing properties
and a simple structure.
[0012] This object is achieved by a partition element which has at
least one partition body and a frame construction for accommodating
and holding the at least one partition body. The partition body has
a first outer panel in the form of a microperforated sheet, a first
fleece, a sound absorption device and a second outer panel, which
are arranged behind one another in this order in the direction of
thickness of the partition body. The sound absorption device in
turn comprises at least one sound absorption element having a
certain dimension in the direction of thickness of the partition
body, and at least one cavity having a certain dimension in the
direction of thickness of the partition body.
[0013] The first outer panel of the partition body in the form of a
microperforated sheet offers an attractive design for the partition
element and at the same time allows sound waves to penetrate into
the interior of the partition body. There, the sound waves of lower
frequency (for example in the range of approximately 500 Hz) are
absorbed within the sound absorption device and the sound waves of
higher frequency (for example in the range from approximately 1000
to 2000 Hz) are absorbed between the two outer panels. The
partition element constructed according to the invention thus has
both positive sound absorption properties and positive design
properties combined with a simple structure made up of few
components and is advantageously suitable for subdividing open-plan
offices, for example.
[0014] The sound absorption device of the partition element
according to the invention comprises at least one sound absorption
element having a certain dimension in the direction of thickness of
the partition body and at least one cavity--constituting a
component which is separate from the at least one sound absorption
element--having a certain dimension in the direction of thickness
of the partition body. Even if the additional cavity means that a
smaller material thickness has to be selected for the sound
absorption element in the direction of thickness of the partition
body and this has a negative effect on the absorption of
low-frequency sound waves, it has been found, surprisingly, that
the provision of the two components constituted by the sound
absorption element and cavity in the partition element structure
defined according to the invention leads overall to very good sound
absorption properties of the partition element, in particular of a
partition element for subdividing open-plan offices and the
like.
[0015] In one embodiment of the invention, the sound absorption
device of the partition body comprises two sound absorption
elements which are spaced apart in the direction of thickness of
the partition body to form the at least one cavity. In an
alternative embodiment of the invention, the sound absorption
device comprises a sound absorption element which is spaced apart
from the second outer panel in the direction of thickness of the
partition body to form the at least one cavity.
[0016] In a further embodiment of the invention, the at least one
cavity can be formed by means of at least one spacer element. This
spacer element is configured in the manner of a frame, for
example.
[0017] In yet a further embodiment of the invention, at least one
bulkhead element can be introduced into the at least one cavity for
the purpose of reducing the penetration of sound through the sound
absorption device. This at least one bulkhead element is selected
for example from a substantially flat bulkhead element, a
corrugated bulkhead element and an angled bulkhead element.
[0018] Preferably, the sound absorption device has a substantially
symmetrical structure in the direction of thickness of the
partition body, with the result that the partition element has
substantially the same acoustic properties from both sides.
[0019] In a preferred embodiment, the first fleece can be
adhesively bonded to the first outer panel, for example by a
hotmelt process.
[0020] In a further preferred embodiment of the invention, the
second outer panel can likewise take the form of a microperforated
sheet and a second fleece can be arranged between the sound
absorption device and the second outer panel of the partition body,
this second fleece preferably being adhesively bonded to the second
outer panel, for example by a hotmelt process. With this structure,
the sound absorption properties of the partition element are
obtained equally on both sides.
[0021] The material of the at least one sound absorption element of
the sound absorption device of the partition body according to the
invention can be selected for example from mineral foam, mineral
fibers, nonwoven fabric, cardboard, foam and felt. For example, the
sound absorption element is a cartonboard having a honeycomb grid
structure or a corrugated shape, wherein the cavities of the
cartonboard are interconnected, or the material of the sound
absorption element is a melamine resin foam or a polyester
wadding.
[0022] In yet a further embodiment of the invention, the partition
element further comprises a stand device with or without castors in
order to form a mobile partition element which can be erected
autonomously.
[0023] In an alternative embodiment of the invention, the partition
element further comprises a fastening device for mounting the
partition element on a furniture item such as, for example, a desk,
a chest of drawers or the like.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] A better understanding of the above features and of further
features, advantages and possible applications of the invention
will be gained from the description given below of preferred,
nonlimiting exemplary embodiments with reference to the
accompanying drawings, in which:
[0025] FIG. 1 shows a schematic perspective view of a partition
element according to one exemplary embodiment of the invention;
[0026] FIG. 2 shows a schematic perspective view of partition
elements according to a further exemplary embodiment of the
invention;
[0027] FIG. 3 shows a partial sectional view of a partition body of
the partition element of FIG. 1 or 2 taken on section line III-III
in FIG. 1 to illustrate the basic structure of the partition
body;
[0028] FIG. 4 shows a detail perspective view of an outer panel of
the partition body represented in FIG. 3;
[0029] FIG. 5 shows a partial sectional view of a partition body
according to a first exemplary embodiment of the invention
analogous to the representation of FIG. 3;
[0030] FIG. 6 shows a partial sectional view of a partition body
according to a second exemplary embodiment of the invention
analogous to the representation of FIG. 3;
[0031] FIG. 7 shows a partial sectional view of a partition body
according to a third exemplary embodiment of the invention
analogous to the representation of FIG. 3;
[0032] FIG. 8 shows a partial sectional view of a partition body
according to a fourth exemplary embodiment of the invention
analogous to the representation of FIG. 3; and
[0033] FIG. 9 shows a partial sectional view of a partition body
according to a fifth exemplary embodiment of the invention
analogous to the representation of FIG. 3.
DETAILED DESCRIPTION OF PREFERRED EXEMPLARY EMBODIMENTS
[0034] FIG. 1 shows by way of a first exemplary embodiment a mobile
partition element which can be used to subdivide open-plan offices,
for example, in a variable manner. The partition element 10
substantially comprises a preferably rigid frame construction
12-16, at least one partition body 18 and a stand device 20. The
frame construction 12-16 has two vertical clamping rails 12 between
which the partition body 18 is held substantially vertically. The
partition body 18 is preferably covered at its top and bottom by an
upper cover profile 14 and a lower cover profile 16,
respectively.
[0035] In the embodiment represented in FIG. 1, the stand device 20
comprises two stand feet which are fixedly connected to the frame
construction 12-16. However, the present invention is not
restricted to the stand device shown here. For example, it is also
possible for only one stand foot or for more than two stand feet to
be provided instead of the two stand feet in FIG. 1; instead of
being arranged at the outer edges of the frame construction 12-16,
the stand feet can be offset inwardly; and/or the stand foot or the
stand feet can be fitted with castors so that the partition element
10 can be displaced more easily and its mobility can thus be
increased.
[0036] In the exemplary embodiment represented in FIG. 1, a
partition body 18 is accommodated and held in the frame
construction 12-16. Alternatively, it is also possible to
accommodate in the frame construction 12-16 two or more partition
bodies 18 which abut one another.
[0037] The structure of the partition body 18 of the partition
element 10 according to the invention will be described further
below in more detail.
[0038] With reference to FIG. 2, a second exemplary embodiment of a
partition element of the invention will be explained.
[0039] As is illustrated by way of example in FIG. 2, a workspace
arrangement comprises a desk 22 and two partition elements 10. The
desk 22 substantially has a desktop 24 and two stand legs 26 which
differ in this exemplary embodiment. Depending on the particular
embodiment, the desk 22 is additionally provided with a desk
surround in the vicinity of the peripheral edges of the desktop 24
or with a framework serving to carry the desktop 24 and to which
the various stand legs 26 can also be fastened.
[0040] The two partition elements 10 are each fundamentally
constructed in the same way as the partition element 10 explained
above with reference to FIG. 1. Identical components are therefore
provided with the same reference numbers as in the above first
exemplary embodiment and do not need to be described again.
However, arrangements with only one partition element 10 or more
than two partition elements 10 are also possible, of course.
[0041] The partition elements 10 in FIG. 2 differ from the
partition element 10 of the first exemplary embodiment in that they
do not have their own stand device 20 but can be mounted on the
rear edge of the desk 22, for example directly on the desktop 24 or
on a desk surround or a frame construction, by means of suitable
fastening elements (not shown) which can be fixed, for example, to
the vertical clamping rails 12, preferably at any desired
height.
[0042] These partition elements are thus not autonomous, mobile
partition elements 10 as in the first exemplary embodiment of FIG.
1 but fixed, individual components. Of course, the partition
elements 10 of FIG. 2 can also be mounted on furniture items other
than a desk 22, for example also on chests of drawers and the
like.
[0043] As indicated in FIG. 2, further components such as, for
example, shelves 28, storage elements, electric rails and the like
can optionally be fitted on the partition element 10, in particular
on its vertical clamping rails 12. The same also applies
analogously of course to the mobile partition element 10
represented in FIG. 1.
[0044] A description of the basic structure of the partition body
18 of a partition element 10 according to the invention of FIG. 1
or 2 will first now follow with reference to FIGS. 3 and 4.
[0045] As represented in the sectional view of FIG. 3, the
partition body 18 is preferably formed at its vertical outer edges
(left-hand side in FIG. 3) with an outer profile which
substantially corresponds to the complementary profile of the
vertical clamping rails 12 such that the partition body 18 can be
fixedly connected to the vertical clamping rails 12 of the frame
construction 12-16.
[0046] In order to achieve the soundproofing function in addition
to the usually intended visual screening function, the partition
body 18 of the partition element 10 according to the invention is
constructed of a number of layers 30 to 38 as follows. Between a
first outer panel 30 and a second outer panel 32 is arranged a
sound absorption device 38. The first outer panel 30 is designed as
a microperforated sheet on whose inner side is adhesively bonded a
first fleece 34, for example using a hotmelt process. Preferably,
although not necessarily, the second outer panel 32 also takes the
form of a microperforated sheet on whose inner side is adhesively
bonded a second fleece 36, for example using a hotmelt process.
Alternatively, as in the case of conventional partition elements,
the second outer panel 32 is simply formed from a wooden, plastic
or metal panel and provided, if appropriate, with a decorative
layer.
[0047] As illustrated in FIG. 4, the microperforated sheets for the
first and second outer panels 30, 32 take the form of a thin metal
sheet, preferably steel sheet, having a thickness b of
approximately 1 mm, for example. In a preferred exemplary
embodiment, the holes in the microperforated sheet are formed and
arranged in the standard 1.1/2 ratio. In other words, the holes
each have a diameter d of approximately 1.1 mm and, with a mutually
offset arrangement (as opposed to a uniformly square arrangement),
a spacing w in the longitudinal direction and diagonal direction of
the outer panel 30, 32 of approximately 2 mm. However, the present
invention is of course not limited to microperforated sheets with
the numerical values stated by way of example for the first and the
second outer panels 30, 32.
[0048] By virtue of its perforation, the microperforated sheet
makes it possible on the one hand for sound waves to penetrate into
the interior of the partition body 18 of the partition element 10
according to the invention and on the other hand offers an
attractive design, with the result that it is possible to dispense
with additional decorative layers on the outer sides of the two
outer panels 30, 32 formed as microperforated sheets. In some
instances, microperforated sheets can also be found in outer walls
of modern office furniture, resulting in this case in a uniform
appearance of the components in the open-plan office.
[0049] An acoustically active fleece is preferably used for the
first and the second fleece 34, 36, with the result that the sound
waves can penetrate into the interior of the partition body 18
between the two outer panels 30, 32 so as to be reflected back and
forth between the outer panels 30, 32 each coated with the fleece
34, 36 and so as to lose their energy in the process. This
construction is particularly effective for the sound absorption of
higher frequencies in the range from approximately 1000 to 2000 Hz,
for example.
[0050] The sound absorption device 38 arranged in the interior of
the partition body 18 between the first and the second outer panel
30, 32 serves not only to absorb sound waves of lower frequencies
of approximately 500 Hz, for example, but at the same time as a
support for the two outer panels 30, 32. To improve the stability
and rigidity of the overall construction, the central sound
absorption element 38 is likewise adhesively bonded to the two
outer panels 30, 32 or to the two fleeces 34, 36.
[0051] According to the present invention, various embodiments are
conceivable for the sound absorption device 38 of the partition
body 18, of which some will be explained in more detail below with
reference to FIGS. 5 to 9. Identical or similar components are each
provided with the same reference numbers and will not be explained
again for each exemplary embodiment.
[0052] FIG. 5 shows a partition body 18 with a sound absorption
device 38 which is arranged between the first and the second outer
panel 34, 36, which are each adhesively bonded to an acoustic
fleece 34, 36, and is composed of two sound absorption elements 40,
42. The sound absorption elements 40, 42 are arranged behind one
another in the direction of thickness (top/bottom direction in FIG.
5) of the partition body 18, wherein a cavity 46 is formed between
the two sound absorption elements 40, 42 with the aid of a spacer
element 44. The spacer element 44 is designed, for example, in the
manner of a frame and produced, for example, from metal, wood
and/or plastic. The two sound absorption elements 40, 42 are
preferably adhesively bonded to the spacer element 44 and the
overall sound absorption device 38 is adhesively bonded via the
fleeces 34, 36 to the two outer panels 30, 32, thus resulting in a
stable assembly.
[0053] Instead of the one frame-like spacer element 44, it is of
course also possible to use a plurality of strip-like, block-like
or otherwise shaped spacer elements.
[0054] FIG. 6 depicts a partition body 18 with a sound absorption
device 38 which is formed from a single sound absorption element 48
and an adjoining cavity 46. As in the first exemplary embodiment of
FIG. 5, the cavity 46 is formed by a spacer element 44.
[0055] The third exemplary embodiment of FIG. 7 differs from the
first exemplary embodiment of FIG. 5 in that the sound absorption
device 38 has a bulkhead element 50 in the cavity 46 between the
two sound absorption elements 40, 42. This bulkhead element 50 is
designed as a corrugated bulkhead element and produced, for
example, from metal (aluminum, steel), plastic and/or glass. It is
intended to reduce the transmission of sound through the partition
body 18.
[0056] In the case of the fourth exemplary embodiment of FIG. 8,
the bulkhead element 52 in the cavity 46 between the two sound
absorption elements 40, 42 is designed as an angled bulkhead
element. In this case, the edge profile of the bulkhead element 52
can be designed, for example, to be rectangular, trapezoidal,
triangular or similarly shaped.
[0057] In the third and fourth exemplary embodiments, the at least
one spacer element 44 can optionally be dispensed with, since the
bulkhead element 50 or 52 keeps the two sound absorption elements
40, 42 spaced apart.
[0058] FIG. 9 shows a further embodiment of a sound absorption
device 38 according to the invention. Here, the cavity 46 between
the two sound absorption elements 40, 42 is formed by two spacer
elements 54, 56 arranged behind one another in the direction of
thickness of the partition body 18. The spacer elements 54, 56 can
be designed in the manner of a frame analogously to the exemplary
embodiment of FIG. 5.
[0059] Between the two spacer elements 54, 56 is held a bulkhead
element 58 which is intended to reduce the transmission of sound
through the partition body 18. In the example of FIG. 9, the
bulkhead element 58 is designed as a substantially flat bulkhead
element. However, it is optionally also possible for corrugated
and/or angled bulkhead elements to be used in this embodiment.
[0060] Whereas the structure of the sound absorption device 38 in
the exemplary embodiments of FIGS. 5, 7, 8 and 9 is in each case
designed to be substantially symmetrical in the direction of
thickness of the partition body 18 (top/bottom direction in the
figures), the sound absorption device 38 of FIG. 6 has an
asymmetrical structure in the direction of thickness of the
partition body 18. A symmetrical structure offers the advantage
that the partition body 18 has substantially the same acoustic
properties from both sides. However, depending on the particular
application, it may also be desirable to have different acoustic
properties on both sides of the partition body 18. In that case it
is also possible to provide an asymmetric design for the
embodiments of FIGS. 5, 7, 8 and 9 by giving the two sound
absorption elements 40, 42 different thicknesses, for example.
[0061] Furthermore, it is also possible to transfer the third to
fifth exemplary embodiments to the partition body 18 represented in
FIG. 6. In other words, a bulkhead element 50, 52, 58 can also be
introduced into the cavity 46 of the sound absorption device
38.
[0062] It is further also conceivable to arrange a plurality of
bulkhead elements 50, 52, 58 behind one another in the direction of
thickness of the partition body 18 in the one cavity 46 of the
sound absorption device 38.
[0063] The sound absorption elements 40, 42, 48 of the
above-explained partition bodies 18 are each preferably made from a
material which is selected from mineral foam, mineral fibers,
nonwoven fabric, cardboard, foam, felt and the like. In one
embodiment of the invention, the sound absorption elements 40, 42
and 48 can be formed from a cartonboard having a honeycomb grid
structure or a corrugated shape. To increase the sound absorption
effect, the cavities of this cartonboard can additionally be
interconnected in the main direction of extent of the partition
body 18. In another variant, the material of the sound absorption
elements 40, 42, 48 of the partition body 18 is a melamine resin
foam or a polyester wadding. However, a person skilled in the art
of acoustics will immediately recognize yet further materials
and/or combinations of materials for the sound absorption
elements.
[0064] The overall thickness of the partition body 18 of the
partition element 10 according to the invention is, for example, in
the range from approximately 15 to 75 mm and the overall thickness
of the sound absorption device 38 is, for example, in the range
from approximately 10 to 50 mm, without the invention being
intended to be limited to these numerical values.
[0065] While a partition body 18 having only one sound absorption
device 38 between the two outer panels 30, 32 has been used in each
of the above exemplary embodiments of the partition element 10, it
is of course also possible within the scope of the present
invention for a plurality of sound absorption devices 38 with
identical or different materials and constructions to be arranged
behind one another and/or next to one another between the first and
the second outer panels 30, 32.
[0066] Furthermore, in the above exemplary embodiments, the two
outer panels 30, 32 of the partition body 18 of the partition
element 10 according to the invention were designed in the form of
a microperforated sheet and coated on their inner side with a
fleece 34, 36 in order to obtain a sound absorption effect on both
sides of the partition element 10. However, it is also possible
within the scope of the present invention for only the first outer
panel 30 to be designed as a microperforated sheet and to be coated
on its inner side with the first fleece 34 and to use any other
desired panel element for the second outer panel 32.
LIST OF REFERENCE NUMBERS
[0067] 10 Partition element [0068] 12 Vertical clamping rails
[0069] 14 Upper cover profile [0070] 16 Lower cover profile [0071]
18 Partition body [0072] 20 Stand device [0073] 22 Desk [0074] 24
Desktop [0075] 26 Stand legs [0076] 28 Shelf [0077] 30 First outer
panel [0078] 32 Second outer panel [0079] 34 First fleece [0080] 36
Second fleece [0081] 38 Sound absorption device [0082] 40 First
sound absorption element [0083] 42 Second sound absorption element
[0084] 44 Spacer element [0085] 46 Cavity [0086] 48 Sound
absorption element [0087] 50 Corrugated bulkhead element [0088] 52
Angled bulkhead element [0089] 54 First spacer element [0090] 56
Second spacer element [0091] 58 Flat bulkhead element
* * * * *