U.S. patent application number 12/319519 was filed with the patent office on 2009-07-16 for retaining device.
Invention is credited to Bernd Maciejewski.
Application Number | 20090178255 12/319519 |
Document ID | / |
Family ID | 40785697 |
Filed Date | 2009-07-16 |
United States Patent
Application |
20090178255 |
Kind Code |
A1 |
Maciejewski; Bernd |
July 16, 2009 |
Retaining device
Abstract
An inventive retaining device which can be adjusted in three
spatial directions, in particular for fastening a first component
to a second component, includes a first plate, which can be fixedly
connected to the second component, as well as a second plate, which
can be adjusted in a first spatial direction relative to the first
plate, and a third plate, which can be adjusted in a second spatial
direction relative to the second plate and a centering pin, which
can be fixedly connected to the first component and can be adjusted
in a third spatial direction relative to the third plate. The
inventive retaining device allows a particularly flexible
regulation of tolerances and facilitates an assembly and/or
disassembly of the components.
Inventors: |
Maciejewski; Bernd;
(Dormitz, DE) |
Correspondence
Address: |
SIEMENS CORPORATION;INTELLECTUAL PROPERTY DEPARTMENT
170 WOOD AVENUE SOUTH
ISELIN
NJ
08830
US
|
Family ID: |
40785697 |
Appl. No.: |
12/319519 |
Filed: |
January 8, 2009 |
Current U.S.
Class: |
24/697.1 |
Current CPC
Class: |
Y10T 24/45958 20150115;
B60R 13/04 20130101 |
Class at
Publication: |
24/697.1 |
International
Class: |
A44B 21/00 20060101
A44B021/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 10, 2008 |
DE |
10 2008 003 779.6 |
Claims
1.-18. (canceled)
19. A retaining device adjustable in three spatial directions for
fastening a first component to a second component, comprising: a
first plate that is fixedly connected to the second component; a
second plate that is adjusted relative to the first plate in a
first spatial direction; a third plate that is adjusted relative to
the second plate in a second spatial direction; and a centering pin
that is fixedly connected to the first component and adjusted
relative to the third plate in a third spatial direction.
20. The retaining device as claimed in claim 19, wherein the three
spatial directions are perpendicular to one another.
21. The retaining device as claimed in claim 19, wherein the first
plate, the second plate, and the third plate are parallel to one
another.
22. The retaining device as claimed in claim 19, wherein the first
plate comprises a long hole that is aligned in the first spatial
direction for adjustably fastening the first plate to the second
plate.
23. The retaining device as claimed in claim 19, wherein the first
plate comprises a first recess for plugging the centering pin that
is functioned in the three spatial directions.
24. The retaining device as claimed in claim 23, wherein the second
plate is detachable fixable to the third plate by a fastening
device.
25. The retaining device as claimed in claim 24, wherein the first
plate comprises a second recess for plugging the fastening device
that is functioned in the first and the second spatial
directions.
26. The retaining device as claimed in claim 25, wherein the first
recess and the second recess of the first plate are a single
recess.
27. The retaining device as claimed in claim 19, wherein the first
plate comprises a counter bearing for retaining an adjusting device
to facilitate a readjustment of the second plate to the first plate
in the first spatial direction.
28. The retaining device as claimed in claim 19, wherein the second
plate comprises a long hole that is aligned in the second spatial
direction for adjustably fastening the second plate to the third
plate.
29. The retaining device as claimed in claim 19, wherein the second
plate comprises a recess for plugging the centering pin that is
functioned in the three spatial directions.
30. The retaining device as claimed in claim 19, wherein the third
plate comprises a first recess for plugging the centering pin that
is functioned in the three spatial directions.
31. The retaining device as claimed in claim 30, wherein the first
plate is detachably fixable to the second plate by a fastening
device
32. The retaining device as claimed in claim 31, wherein the third
plate comprises a second recess for plugging the fastening means
that is functioned in the second spatial direction.
33. The retaining device as claimed in claim 32, wherein the first
recess of the third plate comprises a depression for mounting the
centering pin on a side facing the first component.
34. The retaining device as claimed in claim 19, wherein the
centering pin is adjustable in the third spatial direction by a
fastening device that is arranged in the third spatial direction in
front of and behind the third plate.
35. The retaining device as claimed in claim 19, wherein the
centering pin comprises a centering cone on an end facing the first
component.
36. The retaining device as claimed in claim 19, wherein the
centering pin comprises an indentation for securely locking in the
third plate.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority of German application No.
10 2008 003 779.6 filed Jan. 10, 2008, which is incorporated by
reference herein in its entirety.
FIELD OF THE INVENTION
[0002] The invention relates to a retaining device, which can be
adjusted in three spatial directions, for the detachable attachment
of a first component to a second component.
BACKGROUND OF THE INVENTION
[0003] In the event that components have to be mounted exactly to
one another, adjustable retaining devices for balancing out
tolerances are essential. It is a challenge, particularly in the
case of modules with several components, to be able to harmoniously
balance out the respective tolerances thereof, in order for
instance to be able to prevent a distortion or deformation of the
components.
[0004] Also when attaching lining parts, e.g. in the inside
fittings of means of transportation or in the case of the exterior
lining for larger devices, like for instance medical diagnosis and
imaging devices, it is necessary to be able to align the lining
parts precisely relative to the components to be lined in each
instance. As a result, in addition to the afore-cited advantages,
an optically significant impression which remains the same despite
tolerances during production can also be achieved in the case of a
customer for instance.
[0005] The utility model DE 200 16 889 U1 discloses a plate unit
which can be adjusted in the x/y direction, with which wall lining
elements can be attached to a wall. The plate unit here includes a
base plate which can be adjusted in the x-direction and a retaining
plate which can be adjusted in the y-direction.
[0006] When attaching lining parts to components to be lined for
instance, attention should not only be paid to the alignment of the
lining parts relative to the component to be lined. Similarly, the
lining parts must be alignable relative to one another so that
equal clearance can be achieved between the lining parts. In this
way, adjustability in two spatial directions is often not
sufficiently flexible. Also with assemblies made of several
components, connecting elements must fulfill considerable
requirements in terms of adjustability.
SUMMARY OF THE INVENTION
[0007] It is thus the object of the present invention to specify a
retaining device, which allows two components to be easily
connected with a high degree of flexibility.
[0008] The object is achieved by a retaining device according to
the claims. An inventive retaining device which can be adjusted in
three spatial directions, in particular to attach a first component
to a second component, includes a first plate here, which can be
fixedly connected to the second component, and a second plate,
which can be adjusted in a first spatial direction relative to the
first plate, and a third plate, which can be adjusted in a second
spatial direction relative to the second plate and a centering pin,
which can be fixedly connected to the first component and can be
adjusted in a third spatial direction relative to the third
plate.
[0009] A retaining device of this type allows two components to be
easily connected to one another in a detachable and highly flexible
fashion. Each spatial direction can be individually adjusted
irrespective of the other, thereby facilitating assembly. The
retaining device is embodied here in a compact and thus
space-saving fashion. The components can thus be adjusted in a
local fashion in all spatial directions. A laborious adjustment to
adjusting sites which are remote from each other is avoided as a
result.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Further advantages and details of the present invention
result from the exemplary embodiments described below and with
reference to the drawings. The cited examples do not represent any
restriction to the invention, in which;
[0011] FIG. 1 shows a schematic representation of an embodiment of
a first plate of the inventive retaining device,
[0012] FIG. 2 shows a schematic representation of an embodiment of
a second plate of the inventive retaining device,
[0013] FIG. 3 shows a schematic representation of an embodiment of
a third plate of the inventive retaining device,
[0014] FIG. 4 shows a schematic representation of a perspective
view of an inventive retaining device,
[0015] FIG. 5 shows a schematic representation of an additional
perspective representation of an inventive retaining device,
[0016] FIG. 6 shows a schematic representation of an additional
advantageous embodiment of a first plate of the inventive retaining
device,
[0017] FIG. 7 shows a schematic representation of an exemplary use
of an inventive retaining device for attaching lining parts to a
magnet unit and/or a frame of a magnet unit of a magnetic resonance
device.
DETAILED DESCRIPTION OF THE INVENTION
[0018] FIG. 1 shows a schematic diagram of an embodiment of a first
plate 10 of the inventive retaining device. The first plate 10 in
this embodiment includes two long holes 11a and 11b aligned in a
first spatial direction, e.g. in the vertical (y-direction) for the
adjustable attachment of the first plate 10 to a second plate
20.
[0019] A single long hole 11a, 11b possibly with a certain
anti-twist plate device is also adequate. More than two long holes
11a, 11b may however also be provided. A higher number of long
holes increases the stability but at the same time reduces the
user-friendliness and increases the amount of space needed, since
more handles are needed for attaching the first plate 10 to the
second plate 20. In order to determine an optimal number of long
holes 11a, 11b, the respective advantages and disadvantages are
weighed out depending on requirements.
[0020] The first plate 10 also includes a first recess 12, through
which a centering pin 50 can be plugged, such that the centering
pin 50 and possibly at least parts of fastening means 36 have play
in all spatial directions. I.e. a radial diameter of the first
recess 12 of the first plate 10 is greater than a radial diameter
of the centering pin 50 and possibly parts of fastening means 36
resting on the centering pin 50. The first recess 12 of the first
plate 10 ensures that the retaining device can, as far as possible,
use the full flexibility predefined by the long holes 11a, 11b,
21a, 21b of the first and second plate in the first and second
spatial direction, without being hindered by the centering pin 50.
Possible embodiments of a suitable centering pin 50 are
subsequently described in more detail with reference to FIGS. 4 and
5.
[0021] The first plate 10 also includes, advantageously suited to
each long hole 21a, 21b of the second plate 20, a second recess
13a, 13b, which provides the fastening means 26 for the detachable
fixing of the second plate 20 relative to the third plate 30 with
play at least in the direction of long holes of the second plate.
This is advantageous above all if fastening means, e.g. are
arranged for accessibility reasons such that they would restrict
the flexibility of the adjustability of the retaining device
without a second recess 13a, 13b.
[0022] In the example in FIG. 1, the first plate 10 includes two
second recesses 13a and 13b, which are embodied here as one single
recess together with the first recess 12. It is likewise
conceivable to embody the individual recesses separately from one
another.
[0023] The first plate 10 advantageously includes counter bearings
14a, 14b which are arranged flush with each long hole 11a, 11b in
order to hold the adjusting means 17a, 17b so as to adjust the
second plate 20 relative to the first plate 10 in the first spatial
direction (here: y-direction). The counter bearings 14a, 14b are
attached directly to the first plate 10 for instance, for example
welded or glued thereto. Counter bearings 14a, 14b of this type are
then particularly meaningful if, over the course of time, a drop in
the first component relative to the second component is to be
expected, e.g. if damping layers for sound or oscillation damping
for instance are integrated in the connection of the two
components, which deflect and/or settle over time. In such a case,
with the aid of the adjusting means 17a, 17b, the drop and/or
deflection or settling can be balanced out particularly easily. The
adjusting means 17a, 17b are described more precisely with
reference to FIGS. 4 and 5.
[0024] Other arrangements for a counter bearing and adjusting means
of this type are also conceivable. A further example is
subsequently described with the aid of FIG. 6.
[0025] To attach the first plate 10 to the second component, the
first plate 10 in this exemplary embodiment also has clearance
holes 15, e.g. produced by means of drilling, lasing or water beam
cutting or as threaded holes, through which screws or rivets can be
guided for instance in order to fasten the first plate 10 to the
second component in a conventional fashion. Alternatively, the
first plate 10 can also be welded and/or glued, possibly also
soldered to the second component, or the first plate 10 can also be
embodied as part of the second component.
[0026] FIG. 2 shows a schematic diagram of an embodiment of a
second plate 20 of the inventive retaining device. The second plate
20 in this embodiment includes two long holes 21a, 21b aligned in a
second spatial direction (x-direction) for the adjustable
attachment of the second plate 20 to a third plate 30.
[0027] Similar to the first plate 10, depending on requirements,
only one long hole 21a, 21b or more than two long holes 21a, 21b
can also be provided here.
[0028] The second plate 20 also includes a first recess 22, through
which a centering pin 50 can be plugged, such that the centering
pin 50 has play in all spatial directions. I.e. a radial diameter
of the first recess 22 of the second plate 20 is greater than a
radial diameter of the centering pin 50. The first recess 12 of the
first plate 10 ensures that the retaining device can as far as
possible use the full flexibility which is predetermined by the
long holes of the first and second plates 11a,11b,21a,21b in the
first and second spatial direction without being hindered by the
centering pin 50. Possible embodiments of a suitable centering pin
50 are described in more detail below with reference to FIGS. 4 and
5.
[0029] Furthermore, the second plate 20, consistent with each long
hole 11a, 11b of the first plate 10, has a clearance hole 23a, 23b
embodied as a threaded hole or borehole for instance. With the aid
of fastening means such as screws and screw nuts for instance, the
first plate 10 can be detachably connected to the second plate 20
through the long holes 11a, 11b and the clearance holes 23a,
23b.
[0030] FIG. 3 shows a schematic diagram of an embodiment of a third
plate 30 of the inventive retaining device. The third plate 30
includes a first recess 32, through which the centering pin 50 can
be plugged, such that the centering pin 50 only has play in the
third spatial direction (z-direction). I.e. the first recess 32 of
the third plate 30 is selected such that the centering pin 50 is
essentially form-fit, without it being possible for resistance to
be passed therethrough. Furthermore, the third plate 30, consistent
with each long hole 21a, 21b of the second plate 20, includes a
clearance hole 34a, 34b which is embodied as a borehole or threaded
hole and is generated by means of cutting for instance. The
fastening means such as screws and screw nuts for instance allow
the second plate 20 to be detachably connected to the third plate
30 by means of the long holes 21a, 21b and the clearance holes 34a,
34b.
[0031] The first recess 32 of the third plate 30 advantageously has
at least one depression 37 on the side facing the first component,
in other words on the side from which the centering pin 50 guides
through the third plate 30. The depression 37 facilitates a
mounting of the centering pin 50 in the first recess 32 of the
third plate 30 and as a result a centering of the component 1, e.g.
during assembly or service.
[0032] The third plate 30 also advantageously includes a second
recess 33a, 33b at each clearance hole 23a, 23b of the second plate
20, said recess providing the fastening means for detachably fixing
the first plate 10 relative to the second plate 20 with play at
least in the second spatial direction. This is advantageous above
all if fastening means, e.g. for accessibility reasons, are
arranged such that they would restrict the flexibility of the
adjustability of the retaining device without a second recess 33a,
33b.
[0033] In the example in FIG. 3, the third plate 30 is shown with
two second recesses 33a and 33b, which are embodied as outwardly
open long holes which are aligned in the second spatial direction.
Closed forms for the second recesses 33a, 33b of the third plate 30
are also naturally conceivable for instance.
[0034] FIGS. 4 and 5 show schematic perspective representations of
an inventive retaining device 100 including a first plate 10, a
second plate 20, a third plate 30 and a centering pin 50, as well
as fastening means 16 for detachably fastening the first plate 10
to the second plate 20, fastening means 26 for detachably fastening
the second plate 20 to the third plate 30 and fastening means 36a,
36b for detachably fixing the centering pin 50 relative to the
third plate 30. The retaining device 100 in this example connects a
first component 101 to a second component 102.
[0035] As apparent in FIG. 4, the first, second and third spatial
direction are at right angles to one another in each instance. This
allows a particularly intuitive adjustment, particularly if the
spatial directions are aligned to the main directions, height,
width, depth of the first and/or second component. Furthermore, the
first, second and third plates 10, 20, 30 are arranged in parallel
to one another, as a result of which the retaining device 100 can
be embodied in a particularly compact fashion. In particular, the
plates 10, 20, 30 are arranged in the planes which are spanned by
the first and second spatial direction.
[0036] The fastening means 16 fix the first plate 10 through the
long holes 11a, 11b of the first plate 10 and the clearance holes
23a, 23b of the second plate 20 to the second plate 20. For
instance, the clearance holes 23a, 23b are embodied as threaded
holes, in which the fastening means 16 engage, e.g. in the form of
screws.
[0037] Alternatively, the second plate 20 can, instead of the
clearance holes 23a, 23b for instance, include inter alia threaded
pins, which are guided through the long holes 11a, 11b of the first
plate 10 in order to fix the second plate 20 to the first plate 10,
for instance using screw nuts to hold the first plate 10 relative
to the second plate 20. If necessary, flat washers and/or retaining
rings can naturally also be used.
[0038] If the fastening means 16 are easily detached, the first
plate 10, provided the long holes 11a, 11b allow it, can be moved
in the first spatial direction relative to the second plate 20 into
a desired position, without the first and second plates 10, 20
being able "to come apart".
[0039] As already mentioned in FIG. 1, counter bearings 14a, 14b
are advantageously arranged on the first plate 10 for retaining the
adjusting means 17a,17b,17c for adjusting the second plate 20
relative to the first plate 10 in the first spatial direction, in
particular for a subsequent readjustment in this spatial direction,
e.g. after positioning the components relative to one another. To
this end, the adjusting means 17a, 17b, 17c e.g. are connected to
the second plate 20 by way of the fastening means 16 and secured to
the counter bearing 14a, 14b of the first plate 10 such that the
second plate 20 can be adjusted in the first spatial direction
relative to the first plate 10 by way of the adjusting means 17a,
17b, 17c and the counter bearing 14a, 14b, if the fastening means
16 were at least detached easily.
[0040] The adjusting means 17a,17b,17c are embodied for instance in
the form of eyebolts 17a, 17b or such like, through which the
fastening means 16 are guided such that the fastening means 16 and
thus the second plate 20 is fixedly connected thereto. With the aid
of adjusting means 17c arranged above the counter bearing 14a, 14b,
the eye bolts 17a, 17b and thus the second plate 20 can be adjusted
in the first spatial direction relative to the first plate 10.
Screw nuts, if necessary with flat washers and/or retaining rings,
or self-locking screw nuts or such like are considered as adjusting
means 17c for instance, which allow the eye bolts 17a, 17b to be
adjusted in terms of height.
[0041] In the exemplary embodiment in FIGS. 4 and 5 (like already
in FIG. 1), the counter bearings 14a, 14b are advantageously
arranged so close to the long holes 11a, 11b of the first plate 10
that the adjusting means 17a, 17b, 17c do not protrude beyond the
upper edge of the first plate. The retaining device 100 can thus be
embodied in a particularly compact fashion. One alternative
embodiment of advantageous counter bearings 14' is subsequently
described with reference to FIG. 6.
[0042] Fastening means 26 for the detachable fixing of the second
plate 20 to the third plate 30 are essentially designed in a
similar fashion to the fastening means 16 for the detachable fixing
of the first plate 10 to the second plate 20. In order to avoid
repetitions, reference is made to the above embodiments relating to
the fastening means 16. In FIG. 4, in order to illustrate a typical
position of a long hole 21b of the second plate 20 to the
associated clearance hole 34b of the third plate 30, the retaining
device is shown in the lower region without the fastening means
26.
[0043] If the fastening means 26 are easily detached, the second
plate 20, provided the long holes 21a, 21b allow it, can be moved
into a desired position in the second spatial direction relative to
the third plate 30.
[0044] The centering pin 50 is fixedly connected to the first
component 101, for instance screwed, welded or laminated
thereto.
[0045] The centering pin 50 advantageously has a centering cone 51
on its end facing away from the first component 101, i.e. the
centering pin tapers at least in sections at this end. This
facilitates the mounting of the centering pin 50 in the first
recess 32 of the third plate 30. Furthermore, the depression 37 of
the third plate 30 together with the centering cone 51 of the
centering pin 50 easily allows an assembly offset of several
millimeters e.g. .+-.5 mm, to be easily compensated. This also
facilitates the assembly.
[0046] The centering pin 50 also advantageously includes an
indentation 52, which is embodied as a relief groove for instance.
If the centering pin 50 is guided through the first recess 32 of
the third plate 30, the indentation 52 firstly engages in the third
plate 30 and thus provides feedback relating to the successful
insertion of the centering pin 50 in the third plate 30. The
indentation 52 similarly ensures against the first and second
component 101 and 102 falling apart after disassembly of the
fastening means 36b. Particularly in the event of a fixed second
component 102 and a first component 101 held against the second
component 102 by at least one retaining device 100, the indentation
52 ensures that the first component 101 does not fall down after
the fastening means 36b have been detached.
[0047] Fastening means 36a, 36b are arranged after the retaining
device 100 between the first component 101 and the retaining device
100, as well as on the side of the centering pin 50 facing toward
the second component 102. I.e. the fastening means 36a, 36b are
arranged on the centering pin 50 in the third spatial direction in
front of and behind the third plate 30 and allow the centering pin
50 to be detachably fixed and adjusted relative to the third plate
30. The fastening means 36a can be moved to a desired position on
the centering pin 50 for a preadjustment of a tolerance in the
z-direction. As a result, the fastening means 36a also functions in
particular as a type of stop in the z-direction during assembly of
the first component 101. The fastening means 36b allows the third
plate 30 and thus the retaining device 100 to be fixed in the
z-direction relative to the fastening means 36a.
[0048] The fastening means 36a, 36b are advantageously embodied as
wheel screws for instance. This allows the fastening means 36a, 36b
to be tightened and/or released and thus the centering pin 50 to be
fixed and/or released in the retaining device 100 without a tool,
in particular by hand. To this end, the centering pin 50
advantageously includes a thread which is suited to the wheel
screws.
[0049] It is also advantageous for at least the centering pin 50
and the fastening means 36a, 36b and possibly the third plate 30 to
be manufactured from materials, in particular different materials,
which prevent the parts from fraying. Possible materials for this
are for instance brass or an aluminum-bronze alloy, e.g. for the
centering pin 50 and high-grade steel for the fastening means 36a,
36b. A longer interference-free operation is thus ensured and
otherwise necessary corresponding lubricants can be dispensed
with.
[0050] When the first component 101 is mounted to the second
component 103, the retaining device 100 can firstly advantageously
be fastened to the second component 102 and if necessary a first
preadjustment of the retaining device 100 is carried out. The first
component 101, to which the centering pin 50 was fastened, would
only then need to be inserted and fixed in the desired position
using the fastening means 36. A precise adjustment can then be
performed.
[0051] Both the plates 10, 10', 20, 30 of the retaining device and
also the centering pin 50 can be produced in a cost-effective
fashion, for instance by laser or water beam cutting and/or (turn)
milling.
[0052] FIG. 6 shows a schematic diagram of an additional embodiment
of a first plate 10' of the inventive retaining device with a
further conceivable arrangement for a counterbearing 14' for
retaining adjusting means 17a',17b' for (re-)adjustment of the
second plate 20 relative to the first plate 10' in the first
spatial direction. In the illustrated embodiment, the first plate
10', like in the exemplary embodiment in FIG. 1, has two long holes
11a', 11b', through which the first plate 10' can be detachably
fixed to the second plate (not shown) by means of fastening means
16', as well as first and second recesses 12',13a', 13b' which are
combined to form a recess. The efficiency of these parts is similar
to the afore-described example in FIG. 1.
[0053] Also in the exemplary embodiment shown in FIG. 6, the second
plate (not shown) is in turn connected to the adjusting means 17a',
17b' by way of the fastening means 16'. A separate adjusting means
17a', 17b' is however not provided here for each fastening means
16' but instead all fastening means 16' are connected to a single
adjusting means 17a'. The adjusting means 17a' is embodied here in
the manner of a bracket and is secured to a single counter bearing
14' by way of adjusting means 17b'. In a simple embodiment, the
adjusting means 17b' is in turn embodied as screws, wheel screws or
such like, which is guided for instance from above through the
counter bearing 14', and engages for instance in a threaded bore of
the adjusting means 17a' in order to be able to adjust this and
thus the second plate relative to the counter bearing 14' and thus
the first plate 10' in the first spatial direction if the fastening
means 16' are at least easily detached. The counter bearing 14' is
arranged here advantageously such that the forces acting on the
counter bearing 14' by means of the adjusting means 17a', 17b' are
largely distributed in a symmetrical fashion.
[0054] Compared with the embodiment in FIG. 1, this embodiment is
advantageous in that with a readjustment which need only be
adjusted at one site, this reduces the effort again.
[0055] If larger components are to be connected to one another,
several retaining devices may also be used. One example of this is
shown in FIG. 7. The assembly of a front and/or rear lining 201 of
a magnetic resonance device 200 to the magnet unit 202 thereof is
shown in a perspective view as an exemplary application.
[0056] A frame 203 is usually arranged on the magnet unit 202, on
which additional components can be easily fastened without the risk
of damage to the magnet unit 202.
[0057] Comparatively few fastening points are sufficient to fasten
the front and/or rear lining 201 to the frame 203, which are
arranged symmetrically on the frame 203 for instance. Two to four
or more per front and/or rear lining 201 are generally sufficient
for instance. A retaining device 100, e.g. is fastened to each
fastening point, e.g. to the first plate 10 in each instance, to
the frame 203 e.g. in the afore-described manner. In line herewith,
centering pins 50 are fastened to the front and/or rear lining 201,
as already described above. The front and/or rear lining 201 is
then mounted with the centering pins 50 into the third plate 30 of
the respective retaining device 100 in each instance and can then
be easily moved into the desired position by adjusting the
retaining devices 100.
[0058] The compact design of the retaining device 100 already
enables an adjustment in order to balance out relatively large
tolerances in the case of a relatively small volume. In the example
shown of fastening a front and/or rear lining 201 to a frame 203 of
a magnet unit 201 of a magnetic resonance device 200, tolerances of
several millimeters up to a few centimeters, e.g. .+-.5 mm in the
x- and y-direction and .+-.10 mm in the z-direction can be balanced
out in the case of a volume of the retaining device of below
75.times.75.times.50 mm, whereby the size of the retaining device
naturally correlates with an achievable tolerance compensation.
[0059] With a use of the retaining device in a medical field, in
particular in connection with magnetic resonance devices, details
relating to the material selection are to be considered in order to
be able to rule out a potential risk to the patient and/or
functionality of the devices. For instance, no magnetic materials
are to be used in the vicinity of the magnetic resonance devices.
Conventional tools, are e.g. high grade steel, brass or other metal
alloys, plastics and such like.
* * * * *