EP3601838A1 - Core for an elastic bearing, elastic bearing comprising such a core, and a method for producing such a core - Google Patents
Core for an elastic bearing, elastic bearing comprising such a core, and a method for producing such a coreInfo
- Publication number
- EP3601838A1 EP3601838A1 EP18712829.3A EP18712829A EP3601838A1 EP 3601838 A1 EP3601838 A1 EP 3601838A1 EP 18712829 A EP18712829 A EP 18712829A EP 3601838 A1 EP3601838 A1 EP 3601838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- inner diameter
- end portions
- elastic bearing
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 230000007704 transition Effects 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011162 core material Substances 0.000 description 56
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3863—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type characterised by the rigid sleeves or pin, e.g. of non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3842—Method of assembly, production or treatment; Mounting thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
Definitions
- Core for an elastic bearing elastic bearing with such a core and method for producing such a core
- the present invention relates to a core for an elastic bearing, wherein the core is for receiving a bolt or a screw, wherein the core has a sleeve which has a central portion and two adjoining the central portion, the outer end portions. Furthermore, the invention relates to an elastic bearing for a motor vehicle with such a core, and a method for producing such a core.
- An elastic bearing of the type mentioned is used for example in a chassis of a motor vehicle to dampen the forces or shocks occurring when rolling over bumps and so to increase the ride comfort. Furthermore, the elastic bearing also serves to connect motor vehicle parts with each other or with the chassis of the motor vehicle.
- a preferred application of the above-mentioned elastic bearing is in a chassis axle of a commercial vehicle or a trailer axle, which can also be referred to as a trailer axle.
- An elastic bearing for a chassis axle or a trailer axle has a core and an vulcanized to the core elastomeric body.
- the elastic bearing is pressed into a receiving eye, wherein a bolt or a screw is passed through a through-hole formed in the core to connect the elastic bearing with a vehicle part.
- the outer diameter of the core is sufficiently large.
- a small inner diameter of the through hole is required for the centering of the bolt and / or the screw.
- DE 10 2010 036 027 A1 discloses a steel rubber bushing which has a steel bushing for receiving a screw or a bolt and a vulcanized elastomeric body. Within the steel bush, a plastic spacer is arranged, which is provided with a through hole to pass a screw or a bolt.
- the present invention has for its object to provide a core for an elastic bearing and an elastic bearing, which have a greater design freedom and a low weight and are also inexpensive. Furthermore, the invention has for its object to provide a method for producing such a core, which is simple and inexpensive to carry out.
- the invention relates to a core for an elastic bearing, wherein the core is for receiving a bolt or a screw, the core having a sleeve having a central portion and two adjoining the central portion, the outer end portions, wherein the Central portion having a first inner diameter and the end portions have a second inner diameter and wherein the second inner diameter is smaller than the first inner diameter.
- the core having elastic bearing is preferably used in a chassis of a motor vehicle, in particular a commercial vehicle. Further preferably, the core is used in a chassis axle or a trailer axle of a motor vehicle, in particular a commercial vehicle.
- a sleeve By using a sleeve, a great freedom of design for the design of the outer contour of the core is created. In particular, an additional degree of freedom in the adjustment of the stiffness of the bearing and the life is created.
- the second inner diameter serves to guide a bolt or a screw. In particular, the second inner diameter corresponds to an outer diameter of a bolt or a screw.
- the core formed from a sleeve has a low weight.
- the reduction of the inner diameter is carried out by forming the end portions of the first inner diameter to the second inner diameter.
- the core is made of a thin-walled sleeve, wherein the wall thickness of the sleeve is tuned to the required stability for receiving the Anschraub mechanism.
- the second end portions are calibrated from the first inner diameter to the second inner diameter.
- a guide for a screw or bolt is created in a simple and cost-effective manner.
- the second end sections are formed from the first inner diameter to the second inner diameter, in particular compressed.
- the free ends of the end portions are reshaped.
- the deformed end portions have a third inner diameter which is smaller than the second inner diameter.
- the deformed end portions form the smallest resulting diameter for guiding a screw or bolt.
- the end faces of the end portions are increased and thus reduces the risk that the core digs into a mounting surface of a chassis part, such as a console.
- the end portions are deformed radially inwardly. Further preferably, the end portions are bent radially inwardly.
- the forming takes place in a process downstream of the calibration process.
- the free ends of the end portions are radially inwardly rolled.
- the radially inwardly rolled end sections form the smallest resulting inner diameter for guiding a bolt or a screw.
- the end surfaces of the end portions are increased in a simple and inexpensive manner, so that the risk is reduced that the core digs into a mounting surface of a chassis part, such as a console.
- the end portions are cold-formed, so that the strength of the core in the region of the rolled end portions is increased. As a result, high Anschraub mechanism be included.
- the free ends of the end portions have a third inner diameter which is smaller than the first inner diameter and the second inner diameter.
- the free ends of the end sections form the smallest resulting diameter for the guidance of a screw or a bolt.
- the reduced to the second inner diameter end portions and the central portion are each connected by a respective ramp-shaped transition section.
- the ramped transition section provides a smooth transition from the center section to the end sections.
- expansion peaks are avoided in a vulcanized on the core elastomer body due to sharp-edged transition sections, thus increasing the life of the elastomer body.
- the ramped transition portions provide a smooth transition from the central portion to the respective end portions and thus for improved stress distribution within the core when the two end portions are calibrated to the second inner diameter.
- the middle section has a constriction.
- bearing properties such as stiffness and life requirements, can be adjusted.
- the constriction can be generated by calibration, ie compression.
- the sleeve is made of metal.
- the core has a high strength.
- the wall thickness of the sleeve is preferably matched to the necessary stability to accommodate the directional concern.
- the sleeve is formed as a thin-walled metal sleeve.
- the elastomeric body is vulcanized on an outer side of the core.
- the core is formed of a simple sleeve, a great freedom of design for the design of the outer contour of the core is created.
- the smaller internal diameter end portions serve to guide a screw or a bolt.
- the sleeve is designed such that it is tuned to the necessary stability for receiving the Anschraub protector while having a low weight.
- the elastomeric body can be bounded on the outer circumference by an outer sleeve. Further optionally, the elastomeric body may comprise at least one kidney.
- the elastic bearing has an outer sleeve.
- the outer sleeve is vulcanized to the elastomer body.
- the outer sleeve may be made of metal or plastic.
- a method for producing such a core which has the following method steps. First, a sleeve having a first inner diameter is provided having a central portion and two outer end portions adjacent to the central portion. Subsequently, the end portions are calibrated to a second inner diameter smaller than the first inner diameter. In particular, the second end portions are compressed from the first inner diameter to the second inner diameter. This reduction is adjusted to provide optimum properties for an elastic bearing while providing a suitable diameter from which the free ends of the end portions can be radially inwardly rolled to set the desired inner diameter for guiding a screw or bolt , In addition, the calibration rate or in a multi-step calibration step, the calibration rates are to be chosen so that the core material can flow and does not crack.
- the free ends of the end portions are reshaped inwards.
- the deformed portions of the free ends take over the guidance of a screw or a bolt, since they dictate the smallest inner diameter.
- the end face is enlarged by the forming, so that the risk that the core digs into a mounting surface of a vehicle part, in particular a console, is reduced.
- the free ends of the end portions are rolled inwards.
- the end portions are reshaped in a process subsequent to the calibration process.
- Fig. 1 shows a cross section through an elastic bearing according to a first
- Fig. 3 shows a cross section through an elastic bearing according to a second
- Embodiment with a core according to the first embodiment Embodiment with a core according to the first embodiment.
- an elastic bearing 10 is shown, which is used in a chassis, not shown, of a motor vehicle, in particular a trailer axle of a commercial vehicle.
- the elastic bearing 10 has a core 12 and an elastomeric body 14.
- the elastomeric body 14 is bonded cohesively to an outer side 16 of the core 12, in particular vulcanized.
- the elastic bearing 10 is pressed into an unillustrated receiving eye of a chassis part.
- the core 12 has a sleeve 18 which has a central portion 20 and two adjoining the central portion 20, outer end portions 22.
- the sleeve 18 is made of thin-walled metal, in particular steel.
- the core 12 further has a central passage opening 24 for receiving a screw, not shown, or a bolt, not shown, to connect the elastic bearing 10 with a chassis part, not shown, such as a console.
- the middle section 20 has a first inner diameter 11.
- the end portions 22 are reduced to a second inner diameter 12 and connected via a respective ramp-shaped transition portion 26 with the central portion 20.
- the free ends 28 of the end portions 22 are radially inwardly formed, in particular rolled and have a third inner diameter 13.
- the third inner diameter 13 forms the smallest inner diameter and takes over the leadership of a screw inserted into the through hole 24 or a bolt.
- an end face 30 of the free ends 28 is increased, so that the risk that the core 12 digs into a mounting surface of a chassis part, not shown, is reduced.
- a sleeve 18 is provided by being cut to length, for example, by a thin-walled tube.
- the cut to length of the tube sleeve 18 initially has the first inner diameter 11 over its entire length.
- the end portions 22 are calibrated to the second inner diameter 12 by the end portions 22 are compressed to the second inner diameter 12.
- the free ends 28 of the end portions 22 are radially inwardly rolled so that the free ends 28 have the third inner diameter 13.
- a second embodiment of the core 12 is shown, which differs from the first embodiment in that in the central portion 20, a constriction 32 is introduced.
- bearing properties such as stiffness and life requirements, can be adjusted.
- the constriction 32 can be generated by calibration, ie compression.
- the core 12 is formed of a sleeve 18, the core 12 has a low weight.
- the sleeve 18 allows a great freedom of design in the design of the outer side 16, so that an additional degree of freedom in the adjustment of the stiffness of the bearing 10 and the life is created.
- a second embodiment of the elastic bearing 10 is shown, which differs from the first embodiment in that the elastic bearing 10 has an outer sleeve 34 which is vulcanized to the elastomer body 14.
- the outer sleeve 34 may be made of metal or plastic.
- the elastic bearing 10 is pressed together with the outer sleeve 34 in a receiving eye, not shown.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017106204.1A DE102017106204B4 (en) | 2017-03-22 | 2017-03-22 | Core for an elastic bearing, elastic bearing with such a core and method for producing such a core |
PCT/EP2018/056289 WO2018172145A1 (en) | 2017-03-22 | 2018-03-13 | Core for an elastic bearing, elastic bearing comprising such a core, and a method for producing such a core |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3601838A1 true EP3601838A1 (en) | 2020-02-05 |
Family
ID=61763941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18712829.3A Withdrawn EP3601838A1 (en) | 2017-03-22 | 2018-03-13 | Core for an elastic bearing, elastic bearing comprising such a core, and a method for producing such a core |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3601838A1 (en) |
DE (1) | DE102017106204B4 (en) |
WO (1) | WO2018172145A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11719278B2 (en) | 2020-12-21 | 2023-08-08 | Contitech Vibration Control Gmbh | Preloaded elastomeric bushing |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB351196A (en) * | 1929-05-24 | 1931-06-25 | Ets Tecalemit Sa | Improvements in a frictionless joint and process for manufacturing the same |
FR1407673A (en) * | 1963-05-10 | 1965-08-06 | Riv Officine Di Villar Perosa | Elastic joint for connecting machine parts together |
DE3346665A1 (en) * | 1983-12-23 | 1985-07-04 | Lemförder Metallwaren AG, 2844 Lemförde | ELASTIC BEARING WITH FORCED GUIDE |
JPS6430937A (en) * | 1987-07-22 | 1989-02-01 | Maruyasu Kogyo | Manufacture of rubber bush for swing arm |
WO2002085552A1 (en) * | 2001-04-19 | 2002-10-31 | Toyo Tire & Rubber Co., Ltd. | Method of working end part of metallic tube body and metallic tube body, and method of manufacturing vibrationproof bush using the working method and vibrationproof bush |
EP1563927B1 (en) * | 2004-02-13 | 2007-11-07 | Michelin AVS S.A.S. | Method of forming the end region of a rigid sleeve, forming tool, and elastic articulation |
JP4925809B2 (en) * | 2006-12-21 | 2012-05-09 | 株式会社ブリヂストン | bush |
DE102008008246B4 (en) * | 2008-02-08 | 2017-04-20 | Zf Friedrichshafen Ag | Bushing bearing with reduced space requirement |
JP5401701B2 (en) * | 2009-06-29 | 2014-01-29 | 東海ゴム工業株式会社 | Method for manufacturing cylindrical metal fittings and method for manufacturing anti-vibration rubber bushes using the cylindrical metal fittings |
DE102010036027A1 (en) | 2010-08-31 | 2012-03-01 | Bpw Bergische Achsen Kg | Steel rubber bushing |
US8226100B2 (en) * | 2010-10-26 | 2012-07-24 | The Pullman Company | Elastomeric bushing assembly with multi-piece bar pin |
SE537380C2 (en) * | 2013-07-05 | 2015-04-14 | Scania Cv Ab | Reaction rod with a deformable bush |
-
2017
- 2017-03-22 DE DE102017106204.1A patent/DE102017106204B4/en active Active
-
2018
- 2018-03-13 EP EP18712829.3A patent/EP3601838A1/en not_active Withdrawn
- 2018-03-13 WO PCT/EP2018/056289 patent/WO2018172145A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102017106204A1 (en) | 2018-09-27 |
DE102017106204B4 (en) | 2019-08-29 |
WO2018172145A1 (en) | 2018-09-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102005043234B4 (en) | Method of making an elastomeric bushing bearing | |
EP2478254B1 (en) | Elastic bushing, in particular composite steering bushing | |
EP2671741A1 (en) | Transverse control arm and method for production of the transverse control arm | |
EP1736681A1 (en) | Bushing with radial and/or axial stop and method for the production of an axial stop for a bushing | |
EP2266821A1 (en) | Steering system and method for manufacturing a steering system | |
DE112008000166T5 (en) | Increased axial value and improved durability of an elastomeric bush | |
EP2905503A2 (en) | Elastomer bushing, in particular for the support of a shock absorber of a vehicle axle joint | |
DE102017106204B4 (en) | Core for an elastic bearing, elastic bearing with such a core and method for producing such a core | |
DE19923698A1 (en) | Wishbones | |
EP0496044B1 (en) | Elastic support, in particular for the support of a spring-eye on the body of a vehicle | |
DE102018200344A1 (en) | Hydraulic bearing bush | |
DE102017108460A1 (en) | Tubular component with an extruded profile | |
DE102018106365B4 (en) | bearing arrangement | |
DE10261756A1 (en) | Elastomer mounting, e.g. for the wishbone at a vehicle chassis, has axial channels through the inner metal section to set the pretension of the inner rubber springs and/or adjust the damping characteristics | |
DE102011089259A1 (en) | Method for producing prestressed elastomeric bush bearing involves producing bias of elastomeric bearing element by using and transferring hollow cylindrical element into cylindrical shape as inner portion | |
DE102018218266A1 (en) | Inner part for a molecular joint of a suspension arm | |
DE102013225334A1 (en) | Handlebar of a chassis for motor vehicles | |
DE102005060490A1 (en) | Rubber mount for motor vehicle comfort has bearing body and outer part that are axially divided in two and only combined with inner part at point of fitting to form rubber mount | |
DE102017201903B4 (en) | storage unit | |
EP1035349A2 (en) | Elastomeric support with axial end-stops and manufacturing process therefor | |
DE102019208049B4 (en) | Housing for an actuator of an adjustable stabilizer arrangement and a method for producing a housing for an actuator of an adjustable stabilizer arrangement | |
DE102016225127A1 (en) | Joint for a vehicle and method of manufacturing such a joint | |
EP4317736A1 (en) | Bush bearing with a multi-part elastomer body | |
DE102021125025A1 (en) | handlebars for a vehicle | |
WO2002066855A1 (en) | Bearing component |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20191011 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20200921 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20201102 |