U.S. patent application number 11/376683 was filed with the patent office on 2006-10-12 for vibration-damping mounting.
This patent application is currently assigned to ebm-papst Landshut GmbH. Invention is credited to Roland Keber, Rudolf Tungl.
Application Number | 20060226299 11/376683 |
Document ID | / |
Family ID | 36649072 |
Filed Date | 2006-10-12 |
United States Patent
Application |
20060226299 |
Kind Code |
A1 |
Tungl; Rudolf ; et
al. |
October 12, 2006 |
Vibration-damping mounting
Abstract
A vibration-damping mounting for a motor on a support comprises
a holding means at the motor side and a receiving means arranged at
the support. An elastic element which has a cavity therein is
arranged between the holding means and the receiving means. The
cavity of the element is closed at its end portion towards the
receiving means and that end portion is held in positively locking
relationship in a holder socket of the support.
Inventors: |
Tungl; Rudolf; (Ergolding,
DE) ; Keber; Roland; (Worth a.d. Isar, DE) |
Correspondence
Address: |
HARNESS, DICKEY & PIERCE, P.L.C.
P.O. BOX 828
BLOOMFIELD HILLS
MI
48303
US
|
Assignee: |
ebm-papst Landshut GmbH
Landshut
DE
|
Family ID: |
36649072 |
Appl. No.: |
11/376683 |
Filed: |
March 15, 2006 |
Current U.S.
Class: |
248/58 |
Current CPC
Class: |
F16F 15/08 20130101;
F16F 1/373 20130101; F16F 2230/0047 20130101; F16F 2230/36
20130101 |
Class at
Publication: |
248/058 |
International
Class: |
E21F 17/02 20060101
E21F017/02 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 15, 2005 |
DE |
20 2005 004 271.4 |
Claims
1. A vibration-damping mounting for mounting a motor on a support
comprising: a holding means at the motor side, a receiving means
arranged at the support and including a holder socket, an elastic
element having a cavity therein and arranged between the holding
means and the receiving means, the elastic element having an end
portion which in the assembled condition of the mounting is towards
the receiving means and the cavity of the element being closed at
said end portion, and means for holding said end portion of the
element in positively locking relationship in the holder socket of
the support.
2. A mounting as set forth in claim 1 wherein the configuration of
the end portion corresponds at least in portion-wise manner to the
inner shape of the holder socket.
3. A mounting as set forth in claim 2 wherein the inner shape of
the holder socket is cylindrical.
4. A mounting as set forth in claim 1 wherein said element has a
further portion that is towards the motor side, and comprising a
first positively locking securing means arranged at said further
portion of the element, a first supporting means for the holding
means, and a second positively locking securing means in the form
of a groove in the wall of the element.
5. A mounting as set forth in claim 4 wherein said groove has a
side wall forming a supporting means for the support.
6. A mounting as set forth in claim. 1 wherein said the end portion
of said element is of a smaller cross-section than the remaining
main portion of the element.
7. A mounting as set forth in claim 4 wherein the receiving means
on the support has at least one support mounting means.
8. A mounting as set forth in claim 7 wherein the support mounting
means is arranged at the holder socket and engages into the
groove.
9. A mounting as set forth in claim 7 wherein the groove is in the
form of an annular groove and the support mounting means has at
least one circular rib.
10. A mounting as set forth in claim 1 wherein the respective end
portions of the element are formed with a taper.
11. A mounting as set forth in claim 1 wherein the cavity of said
element extends from the main portion thereof into said end
portion.
12. A mounting as set forth in claim 1 wherein the holding means
has a slot adapted to permit said element to be inserted from the
side into the holding means.
13. An assembly comprising a support and a vibration-damping
mounting for mounting a motor to said support, comprising a holder
socket on said support, a holding means for carrying a said motor,
an elastic element having a cavity therein and having first and
second end portions, a first end portion in the assembled condition
of the mounting to the support being towards said holder socket and
the cavity being closed at said first end portion, and means for
holding said first end portion of said elastic element in
positively locking relationship in said holder socket of the
support, the arrangement being such that the elastic element which
is held to said holder socket in positively locking relationship
therewith is operatively disposed between said holding means and
said holder socket.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application claims the priority of German Utility model
application Serial No 20 2005 004 271.4 filed Mar. 15, 2005, the
subject-matter of which is incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The invention concerns a vibration-damping mounting, for
mounting a motor on a support.
BACKGROUND OF THE INVENTION
[0003] One form of vibration-damping mounting for mounting a motor
on a support, as can be found in EP 1 265 022 A2, comprises a
holding means at the motor side, and a receiving means which is
arranged on the support. An elastic element which has a cavity
therein is arranged between the holding means and the receiving
means. That structure therefore involves a generally sleeve-shaped
bushing of substantially column-shaped configuration with an upper
and a lower opening for a fixing stud to pass therethrough, the
fixing stud being fixed to the support. The bushing is fixed in a
channel provided in the lower region of the fixing stud. At its
upper end portion the fixing stud has a mushroom-shaped cap, the
largest diameter of which is larger than the inside width of the
upper opening of the bushing.
SUMMARY OF THE INVENTION
[0004] An object of the invention is to provide a vibration-damping
mounting for an electric motor, which while being of a simple
structure can be inexpensively assembled.
[0005] Another object of the invention is to provide a
vibration-damping mounting for an electric motor, comprising a
small number of components which can be easily assembled together
by simple mutual engagement.
[0006] Yet another object of the present invention is to provide a
vibration-damping mounting for a motor on a support which affords
effective damping properties combined with a secure mounting
action.
[0007] In accordance with the principles of the present invention
the foregoing and other objects are achieved by a vibration-damping
mounting for mounting a motor on a support comprising a holding
means at the motor side, a receiving means arranged at the support
and an elastic element which has a cavity therein and which is
operatively disposed between the holding means and the receiving
means. The cavity in the element, at its end portion which is
towards the receiving means, is closed. The end portion of the
element is held in positively locking relationship in a holder
socket on the support.
[0008] As will be seen from the description hereinafter of
preferred embodiments of the structure according to the invention,
the fact that the end portion of the elastic element is fitted into
the holder socket forming part of the receiving means on the
support and held therein means that it is possible to dispense with
additional components, thereby affording a cost advantage as well
as ease of assembly.
[0009] In a preferred feature of the invention, the configuration
of the end portion of the element corresponds at least in
portion-wise manner to the inner shape of the holder socket,
wherein that holder socket shape may be in particular cylindrical.
The fact that the element is in a condition of bearing in
positively locking relationship against the holder socket in the
cylindrical cavity therein provides that the element is firmly held
in position and thus affords a stable mounting effect.
[0010] In another preferred feature the mounting according to the
invention has a first positively locking securing means arranged at
the portion of the element, which is towards the motor side, and a
first supporting means for the holding means, while there is a
second positively locking securing means in the form of a groove in
the wall of the elastic element. In that case it may be desirable
for a wall of the groove to form a supporting means for being
supported on the support on which the mounting is to be fixed.
[0011] In another preferred feature of the invention the end
portion of the elastic element, that is towards the support, is of
a smaller cross-section than the remaining or main portion of that
element. That on the one hand facilitates engagement of the element
in position while on the other hand also affording a saving of
material.
[0012] In yet another preferred feature of the invention the
respective end portions of the elastic element have a cone or
taper. That ensures that the element can be easily and quickly
pushed into the holding means and the holder socket
respectively.
[0013] Another preferred feature can provide that the receiving
means on the support has at least one support mounting means which
can engage into the above-mentioned groove of the second securing
means. The support mounting means can be arranged on the holder
socket.
[0014] The above-mentioned groove may be in the form of an annular
groove and the support mounting means can have at least one
circular rib.
[0015] In another preferred feature the cavity in the elastic
element can extend from the main portion thereof into the end
portion.
[0016] That configuration affords particularly good damping
properties, in particular even when the end portion is in contact
relationship over wide regions of its outside periphery or end
faces in the interior of the holder socket.
[0017] Further objects, features and advantages of the invention
will be apparent from the description hereinafter of preferred
embodiments by way of example thereof.
BRIEF DESCRIPTION OF THE DRAWING
[0018] FIG. 1 shows a view in section through a first embodiment of
the vibration-damping mounting for mounting a motor on a support,
and
[0019] FIG. 2 shows a view in section through a second embodiment
of the vibration-damping mounting for mounting a motor on a
support.
DESCRIPTION OF PREFERRED EMBODIMENTS
[0020] Referring firstly to FIG. 1, shown therein is a
vibration-damping mounting indicated generally by reference numeral
1 for mounting a motor (not shown) on a support generally indicated
at 2. The mounting 1 has a holding means 3 at the motor side. The
holding means 3 can engage for example a mounting casing portion of
an electric motor. Provided on the support 2 is a receiving means
generally identified by reference 4. Reference 5 denotes an elastic
element which is operatively disposed between the holding means 3
and the receiving means 4. At its lower end in FIG. 1 which in the
assembled condition of the mounting 1 is towards the receiving
means 4, the elastic element 5 has an end portion 9. The receiving
means 4 includes, arranged on the support 2 in upstanding
relationship as shown in FIG. 1, a holder socket 11 which embraces
the end portion 9 of the elastic element 5 in positively locking
relationship and holds it in place. The elastic element 5 has a
cavity 5' therein, the cavity 5' being closed at the end portion 9
of the elastic element 5, which is towards the receiving means 4.
The configuration of the end portion 9 corresponds at least in
portion-wise manner to the inner shape of the holder socket 11,
being for example cylindrical. The holder socket 11 can be for
example a projection which is suitably formed in position by for
example casting or molding in some other fashion and is thus
generally of a cylindrical shape in the illustrated embodiment.
[0021] The element 5 with the cavity 5' is generally in the shape
of a bushing and, at a portion 6 which is towards the motor (not
shown), has a first positively locking securing means 7 and a first
supporting means 8 for the mounting means 3 for the motor. The
positively locking securing means 7 in this embodiment is formed by
a groove 13, while the supporting means 8 for the holding means 3
is formed by a side wall 12 of the groove 13.
[0022] A second positively locking securing means 10 is provided in
the form of a further groove as indicated at 13 in the wall of the
elastic element 5 in the lower portion of the element 5, which is
towards the support 2. In that case also a side wall 12 of the
groove 13 constituting the second securing means 10 forms a
supporting means 10' for the support 2.
[0023] The end portion 9 which is towards the support 2 is of a
smaller cross-section than the remaining main portion as indicated
at 15 of the element 5. That affords a particularly wide shoulder
for the supporting means 10 on the element 5.
[0024] The receiving means 4 on the support 2 has a support
mounting means 16 which in the illustrated embodiment is arranged
on the holder socket 11 and engages into the groove 13 in the lower
part of the elastic element 5. In the illustrated embodiment each
respective groove 13 is in the form of an annular groove, in which
case the support mounting means 16 and also the holding means 3 on
the upper portion of the element each comprise a circular rib
18.
[0025] It can be clearly seen from FIG. 1 that the respective end
portions 6 and 9 of the elastic element 5 are formed with a cone or
taper as indicated at 14. In an embodiment which is not illustrated
herein it can be provided that at least the cone or taper at the
lower portion of the element is replaced by a cylindrical portion
which completely fills the cylindrical internal space in the holder
socket 11. In that way it is possible for the support which is
generally formed by a housing portion to be left at that location
with an opening which is substantially pressure-tightly or
air-tightly closed off after insertion of the element 5.
[0026] In the illustrated embodiment the cavity 5' in the elastic
element 5 extends from the main portion 15 thereof into the end
portion 9.
[0027] Reference will now be made to FIG. 2 showing a further
embodiment of the vibration-damping mounting for mounting a motor
to a support. It will be clearly seen from FIG. 2 that the general
configuration of this structure is closely similar to that shown in
FIG. 1 so that full details thereof will not be described again at
this juncture. It will be seen that, in this embodiment, the
holding means 3 is provided with a slot 17 which makes it possible
for the elastic element indicated at 5 in FIG. 1 to be pushed into
the holding means 3, instead of being pushed through an opening in
the holding means.
[0028] It will be appreciated that the invention is not limited to
the embodiments described and illustrated herein solely by way of
example. Thus it is for example possible for the configuration of
the elastic element 5 not to be cylindrical but cuboidal. It is
also possible for the grooves 13 not to be annular grooves but to
be provided only over a predetermined portion, in Which case the
wall thickness of the bushing formed by the element 5 can suitably
vary from the structure illustrated in FIG. 1.
[0029] It will be appreciated that various modifications and
alterations may be made in the foregoing structures in accordance
with the invention without thereby departing from the spirit and
scope of the invention.
* * * * *